US20050045784A1 - Remotely attachable and separable coupling - Google Patents
Remotely attachable and separable coupling Download PDFInfo
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- US20050045784A1 US20050045784A1 US10/958,060 US95806004A US2005045784A1 US 20050045784 A1 US20050045784 A1 US 20050045784A1 US 95806004 A US95806004 A US 95806004A US 2005045784 A1 US2005045784 A1 US 2005045784A1
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- United States
- Prior art keywords
- subassembly
- mount
- mounting system
- base
- tool
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/18—Distribution boxes; Connection or junction boxes providing line outlets
- H02G3/20—Ceiling roses or other lighting sets
Definitions
- the present invention relates to an improvement in access means for an assembly located on a room's ceiling or other overhead location, by a human manipulating the assembly while standing on the room's floor, seated in a wheelchair, or otherwise unable to reach the assembly unassisted.
- the primary purpose of the assembly is to suspend an article, such as a sign, or, pendently to support a device, such as a smoke detector and alarm or other electrically actuated fixture, e.g., light fixture, which is to be secured to the ceiling, and periodically removed for renewal, maintenance or inspection.
- the assembly of the invention also may be used to mount or to support various devices from a wall, ceiling, pole, or virtually any other member, part or the like; and/or the assembly may be included as part of such device.
- Magnetic holders such as are disclosed in U.S. Pat. No. 5,472,163 to Callas, are used to display signs on upright metal supports.
- a permanent magnet is wedged between a pair of metal plates and enclosed within a shell shaped to provide horizontal stability and a strong holding force on the support.
- An upright cylindrical adaptor attached to the top of the shell is used to accommodate the shaft of the sign.
- This invention is directed to a problem that is encountered when dealing with an article suspended, or to be suspended from a ceiling, or other overhead location, in typical everyday situations.
- the problem how does a person locate and manually secure an article on a high, out-of-reach ceiling or other overhead location without using something to stand on, for example, a step-ladder, or on another out-of-reach location. Thereafter, how does the person remove the article when required to do so.
- Merchandise such as toys, garments, groceries, hardware, lumber, and office supplies, is commonly advertised within a store by signs hanging from the store's ceiling. Such signs may serve to direct a customer to a particular product, for example, bread in a grocery store; or the sign may serve to advertise a “special” on a particular item. Because the locations of goods in a store are frequently changed, as is the “special” offered from week to week, the location of the signs, as well as the signs themselves, must also be correspondingly changed.
- 5,577,696 to Kramer discloses a steel base plate which is fastened to the ceiling; a magnet is held in a receiver secured to the smoke alarm, so that when the magnet is placed on the steel base plate, the smoke alarm is held on the ceiling.
- the magnetic coupling allows one to remove the smoke alarm from the base plate, but one has to stand on a stepladder to do so.
- the difficulty of registering a steel plate to a magnet secured to the ceiling is minimal so long as the task is addressed by a person on a stepladder and the magnet is conveniently within the reach of the person's arm.
- One aspect of the novel assembly disclosed herein comprises two separate parts, one of which, a first part, is secured to the ceiling, wall, or other overhead location, usually out of reach location; the other, second part, may be secured to the article, or, may be the article itself, adapted to be releasably coupled internally with the first part, that is, coupled with coupling means within the body of the first part.
- Components of the assembly are adapted to removably secure an article to the high or other out-of-reach location with a manually manipulated elongate tool or rod, referred to herein as a “rod” for brevity, thus avoiding using a step-ladder, the effort of hauling the step-ladder underneath the assembly, and the risk of injury posed by having to deal with the assembly on the high location while standing on the step-ladder, for example.
- the invention is directed to a mounting system, which includes a first subassembly attachable to a support and a second subassembly that is releasably attachable to the first subassembly.
- a multi-retention mechanism holds the first subassembly and the second subassembly together, and includes a first retention mechanism that is selectively operable to release and hold using a gravitational force and a second retention mechanism that is selectively operable to release and hold responsive to a positional relationship between the first subassembly and the second subassembly.
- the invention is directed to a method of releasably coupling a first subassembly to a relatively remote secured second subassembly.
- the method includes coupling a tool to the first subassembly; registering the first subassembly at an angle with respect to the second subassembly, thereby engaging a first holding mechanism; reducing the angle between the second subassembly and the first subassembly, thereby engaging a second holding mechanism; and uncoupling the tool from the first subassembly.
- the invention is directed to a method of removing a suspended subassembly that is releasably coupled to a relatively remote secured subassembly.
- the method includes coupling a tool to the suspended subassembly; applying a force to the tool to disengage a second holding mechanism, wherein the force is substantially perpendicular to an orientation of the secured subassembly; increasing an angle between the second subassembly and the first subassembly to disengage a first holding mechanism; and withdrawing the suspended subassembly.
- FIG. 1 is a cross-sectional side elevation view of assembled first (base) and second (mount) subassemblies, the base being secured to a ceiling, and the mount magnetically held against the base which is received within the mount.
- FIG. 2 is a bottom plan view, that is, viewed from beneath, of the assembled base and mount shown in FIG. 1 .
- FIG. 3 is a cross-sectional side elevation view of the base secured to the ceiling.
- FIG. 4 is a bottom plan view, that is, viewed from beneath, of the base shown in FIGS. 1 and 2 .
- FIG. 5 is a cross-sectional side elevation view of the mount secured to the ceiling (the base is not shown).
- FIG. 6 is a bottom plan view, that is viewed from beneath, of the mount shown in FIG. 5 .
- FIG. 7 is a side elevation cross-sectional view of a coupling, including a base to which is magnetically coupled a mount, to the lower surface of which, a smoke detector and alarm assembly (“smoke alarm”) is secured.
- a smoke detector and alarm assembly (“smoke alarm”) is secured.
- FIG. 8 is a side elevation cross-sectional view of a coupling, including a mount having a larger lower surface than that provided by the mount illustrated in FIG. 5 .
- FIG. 9 is a side elevation cross-sectional view of a coupling, including a base the lower peripheral edges of which are interfitted in a circumferential groove providing a detent means by which the base is coupled to the mount, to the lower surface of which, a smoke alarm is secured.
- FIG. 10 is a side elevation cross-sectional view of another coupling, including a mount required to having a larger lower surface than that provided by the mount illustrated in FIG. 5 .
- FIG. 11 is a side elevation cross-sectional view of a coupling, including a base “hard wired” to a pair of electrical leads in a ceiling, and electrically connected through the mount to two terminals of a smoke alarm.
- FIG. 12 is a side elevation cross-sectional view of another coupling, including a base “hard wired” to three electrical leads in a ceiling, and electrically connected through the mount to three terminals of a smoke alarm.
- FIG. 13 is a side elevation cross-sectional view of a coupling, including a base to which is magnetically coupled the base of a smoke alarm; a socket or other rod-attachment means is provided in the center of the cover of the smoke alarm; optionally, the socket is secured peripherally and may be internally threaded as shown in phantom outline.
- FIG. 14 is a side elevation cross-sectional view of a coupling, including a base to which is magnetically coupled the base of a smoke alarm; a finger-like protrusion is secured to the center of the cover; optionally, the finger-like protrusion is secured peripherally, as shown in phantom outline.
- FIG. 15 is a side elevation cross-sectional schematic illustration of a coupling, including a base and mount coupled with a releasable latch means.
- FIG. 16 is a side elevation cross-sectional view diagrammatically illustrating a coupling, including a base to which is interference-fitted a mount carrying a pair of lighting fixtures; an internally threaded socket is provided in the center of the mount.
- the component-mounting floor is substituted for the planar member of the mount in FIG. 10 .
- FIG. 17 is an exploded isometric view of a remotely attachable and separable coupling system of the invention employing a dual retention mechanism.
- FIG. 18 is an exploded section view of the system of FIG. 17 .
- FIG. 19A is a bottom view of the base member of the system of FIG. 17 .
- FIG. 19B is a side elevation view of a retention member for the system of FIG. 17 .
- FIG. 19C is a schematic side elevation view of the mounting ring and circular ring contact for the system of FIG. 17 .
- FIGS. 19D and 19E are, respectively, top plan and side elevation views of circular ring contact for the system of FIG. 17 .
- FIG. 20 is a top view, partly broken away to show the respective clips of the mount of the system of FIG. 17 .
- FIG. 21A is a fragmentary elevation view of the clip holder and clip slot of the mount of the system of FIG. 17 .
- FIG. 21B is a fragmentary elevation section view of the clip holder, clip slot and clip of the mount of the system of FIG. 17 .
- FIG. 21C is a fragmentary front view of the clip holder with a locking pin looking generally in the direction of the arrows 21 C- 21 C of FIG. 21B .
- FIG. 21D is an elevation view of a locking pin.
- FIG. 22 is a top plan view of another embodiment of mount.
- FIG. 23 is a section view of the mount looking generally in the direction of the arrows 23 - 23 of FIG. 22 .
- FIG. 24 is a section view of the mount looking generally in the direction of the arrows 24 - 24 of FIG. 22 .
- FIG. 25 is a side elevation view of the mount of FIG. 22 .
- FIG. 26 is a top section view of the mount looking generally in the direction of the arrows 26 - 26 of FIG. 25 .
- FIG. 27 is a bottom view of the mount looking up at the outside thereof with no device mounted thereon.
- FIG. 28 is a schematic partial top plan view of another embodiment of mount having a dual retention system that includes a mechanical latch.
- FIG. 29 is a schematic partial section view of embodiment of a remotely attachable and separable coupling system with a mechanical latch of the type illustrated in FIG. 28 .
- FIG. 30 is a schematic partial top plan view of another embodiment sliding latch mechanism.
- FIG. 31 is a schematic partial top plan view of still another embodiment of sliding latch mechanism with a pivot movement for reversing direction of one of the detent members of the latch mechanism.
- FIG. 32 is a schematic partial top plan view of even another embodiment of sliding latch mechanism with spring return.
- FIG. 33 is a schematic partial section view of the base member for a touch latch embodiment of the invention.
- FIG. 34 is a bottom view of the base member for a touch latch embodiment of the invention.
- FIG. 35 is a schematic section view of the mount for a touch latch embodiment of the invention.
- FIG. 36 is a top view of the mount for a touch latch embodiment of the invention.
- FIG. 37 is a side view of a remotely attachable and separable coupling system employing a dual retention mechanism in accordance with another embodiment of the present invention.
- FIG. 38A is a back isometric view of a first subassembly of the remotely attachable and separable coupling system of FIG. 37 .
- FIG. 38B is a side view of the first subassembly of FIG. 38A .
- FIG. 38C is a top view of the first subassembly of FIG. 38A .
- FIG. 39A is a front isometric view of a second subassembly of the remotely attachable and separable coupling system of FIG. 37 .
- FIG. 39B is a side view of the second subassembly of FIG. 39A .
- FIG. 39C is a front view of the second subassembly of FIG. 39A .
- FIG. 40 is a side view of a remotely attachable and separable coupling system of the invention employing a dual retention mechanism in accordance with another embodiment of the present invention.
- FIG. 41 is a front isometric view of a first subassembly of the remotely attachable and separable coupling system of FIG. 40 .
- FIG. 42A is a front isometric view of a second subassembly of the remotely attachable and separable coupling system of FIG. 40 .
- FIG. 42B is a side view of the second subassembly of FIG. 42A .
- FIG. 43 is a side view of a catch employed in the second subassembly of FIGS. 42A and 42B .
- FIG. 44 is a side view of a remotely attachable and separable coupling system of the invention employing a dual retention mechanism in accordance with another embodiment of the present invention.
- FIG. 45A is a side view of the first subassembly of the remotely attachable and separable coupling system of FIG. 44 .
- FIG. 45B is a front view of the first subassembly of the remotely attachable and separable coupling system of FIG. 44 .
- FIG. 46A is a side view of the second subassembly of the remotely attachable and separable coupling system of FIG. 44 .
- FIG. 46B is a front view of the second subassembly of the remotely attachable and separable coupling system of FIG. 44 .
- FIG. 37 relates to an assembly for releasably coupling a first support structure to a second support structure.
- the assembly includes a dual retention mechanism, wherein a first retention mechanism operates using gravity in conjunction with an interlock, and a second retention mechanism operates based on a positional relationship. Details of the assembly will be discussed in more detail with respect to FIGS. 37-46 .
- a relatively heavy article would not be removably suspended with manually decouplable coupling means because of the relatively high manual force (greater than 1 lb) required to disengage the article.
- Such force would have to be applied while standing on a step-ladder or other elevating means which permitted a person to reach the article. The higher the force required, the greater the risk of falling off the step-ladder.
- a relatively small force easily applied on the rod with one hand, will angulate the centerline of the suspended subassembly relative to the first (fixed base) sufficiently to allow the suspended subassembly to be angularly disengaged, even if the magnet means, Velcro® fasteners or other coupling means exerted a force of about 10 kg (22 lb).
- that assembly may comprise plural coupling means appropriately located between the base and the mount; each of the coupling means, e.g. a magnet or Velcro® fasteners, exerting a force in the range from about 0.45 kg (1 lb) to about 4.5 kg (10 lb) force.
- the couplable components e.g. the magnet means with its ferrous metal counterpart, irrespective of which couplable component is secured to the base or the mount, or pair of magnets, the suspended subassembly is advanced upward to the secured subassembly so as to permit coupling them.
- the couplable components may be at least one magnet and a ferrous metal; and they may be registered with mating dish-shaped members one of which houses the magnet(s), the other housing the ferrous metal.
- the rod-acceptance means may be a rod-attachment means such as a socket or finger-like protrusion, rather than a through-passage in the mount, for reasons set forth herebelow. The end of the rod supports and balances the mount as it is raised to the base.
- the rod-attachment means may be a socket.
- the socket may be integrally formed with the mount, and the end of the rod may be is biased against the closed end of the socket by gravity, or may be threadedly engaged therein.
- the mount is coupled to the base, the end of the rod is removed from the mount.
- the mount may be serviced by inserting the end of the rod into the rod-acceptance means, exerting sufficient force to decouple the mount from the base, supporting the mount on the end of the rod and lowering the mount to allow it to be removed from the end of the rod.
- the secured first subassembly or “base member” may be of a standard, circular configuration, providing a dish-shaped base (disc-shape base, or some other appropriate shape base);
- the suspended second subassembly or “mount” may be of any arbitrary configuration, and each differently configured mount is interchangeably couplable to the base member; for example, a configuration of the suspended subassembly may include a box-shaped mount, the mount having an overall rectangular shape and planar floor; a hook is secured to hang from the lower surface of the floor; two or more spaced-apart hooks may be provided to support a sign which is required to be hung from plural hooks; another mount may include a cup-shaped configuration and a planar, circular lower surface which may be used to mount a smoke alarm.
- the base member may include a peripheral downward-extending wall and the mount typically provides a generally planar base, or a dish- or cup-shaped member having a generally planar floor with an outwardly flaring peripheral wall to allow the peripheral wall of the dish-shaped base member to be received when the mount is couple to the base member.
- the base member and mount are couplable and decouplable without manually touching either, though which subassembly holds the magnet, as long as one is fixed, is not critical.
- without manually touching is meant that there is no contact of the subassemblies with a person's hand during installation or removal of the mount.
- the magnet coupling means is held in mating dish-shaped base and mount members so as to facilitate aligning the magnet and the ferrous metal.
- the peripheral walls of the subassemblies may be dimensioned such that the entire surface of the one or more magnets used is covered by the ferrous plate to make economic use of the full strength of the magnet.
- first (base member) and second (mount) subassemblies 20 and 30 respectively are matingly disposed against the ceiling 11 .
- the shapes of the base member and mount are not necessarily interrelated and may be arbitrary as long as the shapes allow the coupling means to be engaged and disengaged when desired, it is convenient to use a generally circular base and mount for ease of assembly and accurate registration of coupling means.
- the base 20 may include a first synthetic resinous cup-shaped dish 21 (“first dish 21 ” for brevity) which is secured to the ceiling 11 with suitable fastening means, for example a pair of oppositely spaced apart screws 12 inserted through washers 13 .
- the mount 30 comprises a second synthetic resinous cup-shaped dish 31 (“second dish 31 ”) which is shown matingly coupled in male-female relationship with the first dish 21 .
- Centrally located in the first dish 21 is a magnet 24 (see FIG. 3 ) and a plate of ferrous material 32 , for example steel, is located centrally within the second dish 31 , corresponding to the magnet 24 , so that the surfaces of the magnet and steel plate will be in tight contact when the first and second dishes are mated.
- the material from which the second dish 31 and the first dish 21 are formed is non-magnetic, and, for example, may be poly(vinyl chloride), styrene or a phenol-formaldehyde resin, though aluminum would be suitable.
- the second dish 31 is mated to the first dish 21 by holding the former on the end of a rod 15 , so that the magnet 24 is fully covered by plate 32 , as shown in FIG. 2 .
- the second dish 31 On the end of a long rod, the second dish 31 is more easily slid over the circular periphery of the first dish 21 than if the peripheries of each was other than circular.
- the corners of each may be accurately matched before the two can be mated; elliptical shapes are easier than rectangular but more difficult than circular.
- the first dish 21 of the base 20 includes a planar disc 22 peripherally ringed by an integral cylindrical wall 23 .
- magnet 24 Centrally secured to the lower surface of disc 22 is magnet 24 , for example by a screw 25 , the head of which is in a correspondingly shaped hollow countersunk in the lower face of the magnet so that it presents a planar lower surface against lower surface 26 .
- the strength of the magnet 24 is chosen to correspond with the weight of the objects to be suspended, for example, in the range from 113.4 gm (0.25) lb to about 4.536 kg (10 lb).
- the area of the latter (plate 32 ) may be much larger than that of the magnet, and may occupy substantially the entire area of the floor 37 of the second subassembly.
- the area of the ferrous plate to compensate for inappropriately positioning the magnet is costly and wasteful; therefore, matching the area of the magnet 24 to an appropriate area of the plate 32 is to be ensured.
- the second subassembly or “mount” 30 includes second dish 31 and a tubular socket 40 ; the socket 40 has a closed end 41 and downwardly extending sidewalls 42 by which the socket is secured to the exterior periphery of the second dish 31 .
- the socket 40 is secured so that its cavity 43 is directed substantially vertically downward and the closed end's planar base is substantially coplanarly disposed relative to the plane of the peripheral surface of the second dish 31 .
- the cross-section of the cavity 43 is not critical, serving only to slidably accommodate the end of rod 15 . Since a cylindrical rod such as a broom handle is typically conveniently at hand, the cavity is cylindrical in cross-section.
- the closed end of the socket 40 serves to support the mount on the end of the rod; however, if the socket is open-ended, that is, a hollow tubular section, the rod may nevertheless be angulated relative to the vertical, to remove the mount. A relatively close tolerance between rod and the walls of the socket or tube will permit the second subassembly to be lowered controllably.
- a ferrous metal disc 38 is secured to the floor 37 of the second dish 31 with appropriate fastening means, for example, a pair of opposed spaced apart screws 33 the heads of which are countersunk in the planar surface of the disc 38 and threaded into the floor 37 .
- the disc 38 is bored and threaded to receive a correspondingly threaded eye-bolt 34 , which is inserted through a central aperture in the floor 37 , the eye-bolt in turn suspending a sign from a hook (not shown).
- a hook When the hook is inserted into the eye of the eye-bolt an article, such as a sign, attached to the hood is suspended from the ceiling. Changing the sign is accomplished by removing and lowering the second dish 31 to the floor of the room, substituting the appropriate hook in the eye-bolt, inserting a rod 15 into the socket and replacing the second dish 31 on the first dish 21 .
- the function of the second dish 31 is to provide a mount, and also to permit the first dish 21 to be guided into the second dish 31 so as to center the magnet 24 on the ferrous metal disc 38 , and use the entire force exerted by the magnet.
- the inside diameter of walls 36 of the second dish 31 is greater than the outside diameter of the first dish 21 so the walls 23 of the latter may be readily inserted into the former (second dish 31 ).
- a downwardly tapered annular transition zone connecting the walls 36 to the floor 37 urges the periphery of the walls of the first dish 21 inward until, when the periphery of the walls of the first dish 21 abut the floor 37 , the magnet 24 is centered upon the disc 38 .
- downwardly tapered is meant that the cross-section of the second dish 31 at its periphery is greater than the cross-section of the walls where they meet the floor 37 .
- the inside diameter of the second dish 31 may be in the range from about 5% to about 10% greater than the outside diameter of the periphery of the first dish 21 to allow angulation of the second dish 31 relative to the first dish 21 , as is explained below.
- the socket 40 may have a smooth-walled interior, its diameter being slightly larger, from about 0.05% to 5%, than that of the rod 15 , say a broom handle, to be inserted in the socket. Since the socket is smooth-walled, a directly downward pull on the rod will only serve to remove it from the socket. Therefore, a force is applied at the distal end (from the socket) in the lateral direction. This force serves to pivot the second dish 31 on the base of the socket 40 , thus angulating the ferrous plate 32 relative to the lateral surface of the magnet 24 .
- Such angulation in the range from about 1° to about 15° is sufficient to break contact with one edge (the distal end from the socket) of the magnet and progressively disengages the remaining surface of the magnet, thus requiring only a fraction, from 50% to 10% or less than the large force required to break contact with the entire surface of the magnet, at one time, substantially instantaneously, which large force would be required if the mount 30 was to be pulled directly downward.
- the first and second dishes 21 and 31 respectively may be injection molded, and whether the socket 40 has a smooth cavity or is threaded, the socket 40 may be integrally molded with the second dish 31 .
- the socket may be formed directly in the periphery of the second dish; or, a through-passage in the periphery of the second dish may afford sufficient purchase for the rod, as for example when the second dish supports a larger structure (see FIG. 8 ).
- the height of the assembly 10 may be kept to a minimum to keep the assembly as unobtrusive as possible. Therefore, though the overall dimensions of the assembly are not narrowly critical, for practical applications, the height of the first dish 21 is in the range from about 1 cm to about 4 cm, the height of the corresponding second dish 31 being greater by about the thickness of the floor 37 .
- the cross-section of wall 36 and floor 37 is in the range from about 1 mm to about 3 mm, as is the cross-sectional thickness of the first dish 21 , the thickness in each case being sufficient to provide adequate rigidity and strength to the assembly, and related to the physical characteristics of the synthetic resin used.
- FIG. 7 there is schematically illustrated an assembly 60 comprising a base 20 , a mount 30 , and a conventional smoke alarm 50 secured to the mount 30 .
- a smoke alarm typically has a base plate 51 with a bayonet mount to secure it to a receiving base and the receiving base is secured to the ceiling.
- the bayonet mount is dispensed with, and the smoke alarm is directly secured to the lower surface 37 of dish-shaped portion 31 of the mount.
- mount 30 includes a rod-attachment means, shown as a socket, and a slight force exerted on the end of the rod, in a generally lateral direction, serves to disengage the steel disc 32 from the magnet 24 .
- the smoke alarm 50 may then be conveniently serviced on a table in the room and replaced on the base 21 by reinserting the handle of the broom into the socket 40 and mating the second dish 31 to the first dish 21 .
- the suspended subassembly 70 is the “mount” which includes a cup-shaped member 47 and a suspension member 71 attached to the lower surface of cup-shaped member 47 .
- the suspension member 71 presents a larger lower surface than that presented by the cup-shaped member 71 , the larger surface making it possible to provide plural spaced-apart eye-bolts 34 from which to hang an article (not shown).
- the shape of the suspension member is arbitrary, the one illustrated being provided to clear an adjacent obstruction such as a conduit 75 carried on the ceiling.
- the suspension member 71 is a generally rectangular dish 72 having an upwardly stepped floor 73 and vertical walls 74 which abut the ceiling to hide the conduit 75 .
- the central portion 76 of the stepped floor is planar and secured to the lower surface of the second dish 31 with fastening means such as spaced-apart screws 77 .
- a through passage 78 in the suspension member 71 near its periphery is large enough to have a rod 15 inserted in it. As before, a lateral force on the distal end of the rod angulates the steel disc 32 against the magnet 24 and disengages the mount 70 .
- an assembly 60 including a base 51 coupled with a mount 61 with a detent means, one member of which is integral with the mount and the other member of which is integral with the base.
- the mount 61 includes a dish-shaped member 63 having an outwardly and upwardly flaring peripheral wall 64 around floor 65 .
- the base 51 has a planar floor 52 attached to ceiling 11 with screws 12 and a peripheral wall 53 which extends downward, flares outwardly from floor 52 and terminates in a rim 54 , this rim being the other member of the detent means.
- the end 54 is engaged in a circumferential groove 62 at the base of the outwardly flaring wall 64 , the groove 62 serving as a detent to secure mount 61 to base 51 .
- the groove 62 lies at the apex of the angle formed by the wall 64 and floor 65 .
- Smoke alarm 50 is mounted to the lower surface of the floor 65 with appropriate fastening means such as screws (not shown).
- socket 66 having a bore 67 adapted to slidably accommodate the end of rod 15 , as described above.
- the mount 95 includes a socket 96 having a bore 97 in which a rod 15 is inserted to couple and decouple the mount 95 to the base 91 .
- the base is provided with a floor 92 and a downwardly extending peripheral wall 93 .
- Plural magnets 94 are secured to the lower surface of floor 92 with appropriate fastening means, e.g., countersunk screws (not shown), the lower planar surfaces of the magnets extending to about the horizontal plane in which the periphery of wall 93 lies.
- Mount 95 is a planar member having a planar floor 98 oppositely disposed from the surfaces of magnets 94 .
- a single large steel plate 99 although plural steel plates 99 may be used, is secured to the floor 98 and located directly opposite from and in registry with magnets 94 when the mount 95 is coupled to base 91 .
- a central elongated magnet may be used with one or more ring-magnets surrounding the central magnet; correspondingly, an elongated steel plate and one or more annular rings of steel are positioned to be in registry with the magnets when the mount and base are coupled.
- an assembly 100 comprising a suspended subassembly shown as a dish-shaped mount 101 coupled with a secured subassembly shown as a dish-shaped base 102 secured to ceiling 11 .
- the base has a planar floor 104 and a downwardly extending wall 106 extending peripherally from the floor 104 .
- the lower surface of floor 104 is provided with a downwardly projecting central boss 120 which has a recessed central portion 122 and a circumferential step 124 .
- Electrical leads A and G in the ceiling are connected to terminals 128 and 126 respectively on the upper surface of the floor 104 .
- Terminal 128 is centrally located and in electrical connection through recessed central portion 122 , and with a conductive spring 132 .
- Terminal 126 laterally spaced apart from terminal 128 is in electrical connection with terminal 126 ′ on the circumferential step 124 of boss 120 .
- the mount 101 has upstanding walls 103 extending from the periphery of a floor 105 provided with a an upwardly projecting central boss 107 which has a recessed central portion 123 defined by a circumferential wall 125 to the upper peripheral surface 127 of which is secured an annular conductive strip 129 .
- a terminal 133 Centrally located within recessed central portion 123 in the upper surface of the floor 105 of mount 101 is a terminal 133 which is in electrical connection with terminal 133 ′.
- Terminal 133 ′ is centrally located within recessed central portion 131 in the lower surface of the floor 105 .
- terminal 126 ′ When mount 101 is coupled to base 102 , terminal 126 ′ is in contact with annular conductive strip 129 which is in electrical connection with terminal 129 ′ in recessed central portion 131 in the lower surface of the floor 105 ; and spring terminal 132 is in contact with terminal 133 which is in electrical connection with terminal 133 ′ in recessed central portion 131 .
- spring terminal 132 When coupled spring terminal 132 is in contact with terminal 133 and terminal 126 ′ is in contact with annular conductive strip 129 .
- Electrical leads G′ and A′ extend from terminals 129 ′ and 133 ′ respectively for connection with appropriate terminals of a smoke alarm 50 mounted to the lower surface of floor 105 .
- Mount 101 includes a socket 134 having a bore 135 , the socket peripherally molded with floor 105 .
- the floor 105 has an upstanding annular wall 136 surrounding the central boss 107 , and an annular steel ring 137 is secured to the peripheral surface of annular wall 136 .
- a ring magnet 138 On the inner surface of floor 104 of base 102 is secured a ring magnet 138 , positioned so as to be registrable with the annular steel ring 137 when the mount is coupled to the base.
- the inner surface of the peripheral wall 103 is tapered at 138 so as to guide the peripheral upper surface of wall 106 until it is in close proximity to the upper surface of floor 105 , the annular steel ring 137 is in contact with the ring magnet 138 , and the terminals of the smoke alarm are in electrical contact with the leads A and G in the ceiling.
- a smoke alarm may be “hard wired” to the ceiling, the smoke alarm is provided with a battery which is to operate the device should there be a power failure substantially simultaneously with a fire; the battery in such a smoke alarm must be replaced when the charge runs below a safe level, and removing and replacing the battery is made easy with the assembly 100 .
- Smoke alarms and other devices also have to be removed for various purposes, such as cleaning, testing, repair, etc.
- Assembly 200 comprises a suspended subassembly, shown as a dish-shaped mount 201 coupled with a secured subassembly shown as a dish-shaped base 202 secured to ceiling 11 .
- the base has a planar floor 204 and a downwardly extending wall 206 extending peripherally from the floor 204 .
- the lower surface of floor 204 is provided with a downwardly projecting central boss 220 which has a recessed central portion 222 and a circumferential step 224 .
- Terminals 128 , 121 and 126 are connected to terminals 128 , 121 and 126 respectively on the upper surface of the floor 204 .
- Terminal 128 is centrally located in recessed central portion 222 and in electrical connection with a conductive spring 132 .
- Terminals 121 and 126 are laterally spaced apart from terminal 128 and from each other, and are in electrical connection with terminal 121 ′ and 126 ′ respectively on the circumferential step 224 of boss 220 .
- the mount 201 has upstanding walls 203 extending from the periphery of a floor 205 provided with a an upwardly projecting central boss 207 which has a recessed central portion 223 defined by a circumferential wall 225 to the upper peripheral surface 227 of which is secured annular conductive strips 221 and 129 directly opposite terminals 121 ′ and 126 ′ respectively.
- a terminal 133 Centrally located within recessed central portion 223 in the boss 207 on the upper surface of the floor 205 of mount 201 is a terminal 133 which is in electrical connection with terminal 133 ′.
- Terminal 133 ′ is centrally located within recessed central portion 231 in the lower surface of the floor 205 .
- terminal 126 ′ When mount 201 is coupled to base 202 , terminal 126 ′ is in contact with annular conductive strip 129 which is in electrical connection with terminal 129 ′ in recessed central portion 232 in the lower surface of the floor 205 ; and spring terminal 132 is in contact with terminal 133 which is in electrical connection with terminal 133 ′ in recessed central portion 231 .
- Electrical leads G′, A′ and B′ extend from terminals 129 ′, 133 ′ and 221 ′ respectively for connection with appropriate terminals of a smoke alarm 50 mounted to the lower surface of floor 205 .
- Mount 201 includes a socket 234 having a bore 235 , the socket peripherally molded with floor 205 .
- the floor 205 has an upstanding annular wall 236 surrounding the central boss 207 , and an annular steel ring 137 is secured to the peripheral surface of annular wall 236 .
- a ring magnet 138 On the inner surface of floor 204 of base 202 is secured a ring magnet 138 , positioned so as to be registrable with the annular steel ring 137 when the mount is coupled to the base.
- the inner surface of the peripheral wall 203 is tapered at 238 so that when the peripheral upper surface of wall 206 is in close proximity to the upper surface of floor 205 , the annular steel ring 137 is in contact with the ring magnet 138 and the terminals of the smoke alarm are in electrical contact with the leads A, B and G in the ceiling.
- FIG. 13 there is schematically illustrated an assembly indicated generally by reference numeral 300 , comprising a secured subassembly 302 and a suspended subassembly 301 , by itself, which is the article to be suspended.
- the secured subassembly 302 includes a base 304 and a magnet 324 secured there-within with fastening means (not shown) to ceiling 11 in a manner analogous to that illustrated and described in FIG. 1 .
- Illustrated in FIG. 13 is a smoke alarm 303 having a cover 307 removably secured to a component-mounting floor 305 , for mounting electrical components.
- the component-mounting floor 305 is analogous to, and may be substituted for, the planar floor 98 of the planar member 95 in FIG. 10 .
- the smoke alarm has no other base, as is common for smoke alarms in which the component-mounting floor is removably mounted to a base, typically with a bayonet mount.
- a battery 308 which is to be periodically replaced.
- the floor 305 is recessed in the center to have a steel plate 309 fixedly held therein.
- the cover 307 is provided with a socket 340 , in an embodiment, it is near the center of the cover and integrally molded therewith, the socket having a bottom 341 inwardly spaced from the cover's lower surface 311 for a distance sufficient to provide secure purchase for the end of a rod 15 which is slidably snugly inserted in bore 342 when the smoke alarm 303 is to be removed from, or replaced onto the base 304 .
- the bore 342 may be internally threaded with threads 353 to receive the end of a complementarily threaded rod (not shown).
- the cover may be provided with a through-aperture defined by the diameter of the bore 342 , into which through-aperture the rod 15 may be inserted and stopped by steel plate 309 .
- a force exerted on the rod 15 to angulate it and dislodge the steel plate 309 from contact with magnet 324 causes pressure to be exerted on the periphery of the through-aperture. Since the cover 307 is typically made of relatively fragile plastic, a through-aperture is less preferred to socket 340 .
- an alternative to providing a socket 340 within the cover is to provide a socket 350 , shown in phantom outline, at the periphery of component-mounting floor 305 , the socket 350 molded integrally with floor 305 .
- the socket 350 has a bottom 351 extending laterally from the mounting floor 305 , and the socket's bore 352 is adapted to receive the end of rod 15 .
- the bore 352 may be internally threaded with threads 353 to receive the end of a complementarily threaded rod (not shown).
- the socket is provided within the cover 307 or secured to the mounting floor 305 , it serves to transmit the force exerted by the end of rod 15 to dislodge the smoke alarm 303 from base 304 .
- the cover 307 is manually removed from the component-mounting floor 305 and the battery 308 removed and replaced.
- base 304 may be a plate, it may include a peripheral wall 310 , the peripheral lower surface 314 of which extends downward to near, or in contact with the inner surface 312 of the mounting floor 305 .
- the “inner surface” refers to the surface of the floor 305 which is on the other side from that on which the components are mounted.
- the peripheral surface 314 serves to stabilize the ferrous metal plate 309 and register it accurately against the magnet 324 . Moreover, when the rod 15 is angulated, the surface 314 provides a fulcrum to facilitate the steel plate 309 breaking contact with the magnet 324 .
- FIG. 14 there is schematically illustrated an assembly 400 comprising secured subassembly 302 secured to ceiling 11 and suspended subassembly 401 including a smoke alarm 403 , analogous to the assembly 300 in FIG. 13 , except that instead of socket 340 , smoke alarm 403 has a cover 407 from which projects a finger-like protrusion 345 .
- the location of the finger-like protrusion 345 like the location of the socket 340 , is not narrowly critical, but because a person standing on the floor of a room may not visually recognize the direction in which the advantage of maximum leverage lies, the finger-like protrusion 345 is placed near the center of the cover 407 . If desired, the finger-like protrusion 345 may be threaded with threads 346 to be received in the complementarily threaded bore in the end of a rod (not shown).
- the protrusion 345 may be replaced with a protrusion 355 , shown in phantom outline, at the periphery of component-mounting floor 305 , molded integrally therewith; as before, if desired, the protrusion may be threaded to be received in the complementarily threaded bore in the end of a rod (not shown).
- the detent means illustrated in FIG. 9 and the magnet and steel plate combination illustrated in the other Figures may be replaced with a latching means 510 in an assembly 500 illustrated in FIG. 15 .
- the assembly 500 comprises a secured subassembly or base member 501 and a suspended subassembly or mount 502 ; the latter is latched to the base member 501 which has a planar floor 503 secured to ceiling 11 , and a peripheral wall 504 . Pending from the floor 503 are laterally spaced apart catches 505 , which may be integrally molded with the floor 503 . In an example each catch may terminate in a V-shaped portion 506 .
- the V-shaped portion 506 may have a generally triangular cross section having an inclined surface 507 and a substantially lateral surface 508 . Other shapes and styles of latch, catch, etc. may be used.
- Mount 502 has a generally planar member 511 adapted to receive a latching arm 512 which is translatable to and fro relative to catches 505 , so as to engage and disengage them.
- latching arm 512 includes upstanding latches 513 , the bases of which are fixed to latching arm 512 and each of latches 513 may terminate in a V-shaped portion 514 having a generally triangular cross section, inclined so as to provide a downwardly extending stub 515 with a substantially lateral surface 516 which rests upon lateral surface 508 when engaged.
- latching arm 512 projects through the periphery of base 511 into the bore 522 of socket 520 which may be integrally molded with planar member 511 , the bottom 523 of the socket extending from the periphery of planar member 511 .
- the end 518 of the latching arm 512 is attached to one end of a spring-biased lever arm 525 biased away from wall 524 of socket 520 by a spring 526 .
- the lever arm 525 is located so that the end of a rod 15 (not shown) slidably inserted in bore 522 will compress spring 526 and urge latching arm 512 away from the longitudinal center-line of the rod.
- the “throw” of the latches 513 is sufficient to disengage stubs 515 from the catches 508 thus releasing mount 502 from the base member 501 .
- the planar member 511 is provided with an outwardly inclined wall 517 remote from and oppositely located from socket 520 . Further the outer surface of wall 524 , near the bottom 523 of the socket 520 , is provided with an outwardly inclined surface 527 to guide the lower peripheral surface of wall 504 into contact with inner surface 528 of planar member 511 , as the mount 502 is urged upwards along mating inclined surfaces 507 of each catch and those of stubs 515 . As the rod is then withdrawn, pressure against the lever arm 525 is released and the spring 526 causes the stubs 515 to engage the terminal portions 506 of the catches.
- the lower end of socket 520 may be inserted in a socket at the end of a rod so that spring 526 is not compressed.
- the spring 526 is compressed as the inclined surfaces of the stubs 515 are urged along the correspondingly inclined surfaces 507 of the V-shaped terminal portions 506 of the catches until the ends of the stubs clear the portions 506 ; the spring 526 is then released and secures the stubs in position on the lateral surfaces 508 of the catches.
- FIG. 16 there is schematically illustrated an assembly 600 comprising a secured subassembly or base member 601 secured to ceiling 11 , and a suspended subassembly or mount 602 from which a pair of lighting fixtures 603 and 604 is suspended, the lights requiring electrical current to bulbs in the fixtures, and the two subassemblies being adapted to be coupled by an interference fit therebetween, and decoupled when desired.
- base member 601 includes a disc-shaped member 605 having a peripheral wall 606 , the outer surface 607 of which is inwardly inclined.
- the lower surface of disc-shaped member 605 is provided with a downwardly projecting central boss 608 which has a recessed central portion 609 and a circumferential step 610 .
- Electrical leads A (hot), B (neutral) and G (ground) in the ceiling are connected to terminals 611 , 612 and 613 respectively on the upper surface of disc-shaped member 601 .
- Three leads are shown though only first and second current-carrying leads may be necessary.
- Terminal 611 (first terminal) is centrally located and in electrical connection with a conductive spring 615 in recessed central portion 614 .
- Terminal 612 (second terminal), laterally spaced apart from terminal 611 , is in electrical connection with terminal 612 ′ on the circumferential step 610 of boss 608 .
- Terminal 613 laterally spaced apart from both terminals 611 and 612 , is in electrical connection with terminal 613 ′ on the peripheral lower surface 616 of wall 606 .
- the mount 602 includes a mounting member 625 which has a generally planar floor 628 and an upstanding peripheral wall 621 ; the wall 621 is outwardly directed and inclined from the vertical center-line of mounting member 625 to which fixtures 603 and 604 are mounted; and the inner surface 622 of wall 621 is complementarily inclined to be tightly fitted over outer surface 607 of wall 606 until the peripheral surface 616 is biased against a conductive ring 627 secured near the periphery of the inner surface 628 of cover 625 .
- the conductive ring 627 is in electrical connection with leads to the bases of lighting fixture 603 and 604 .
- the upper (or inner) surface of planar floor 628 has a central boss 630 projecting upward and having a central recess 631 within which is centrally located a terminal 632 (third terminal) adapted to contact central terminal 615 (first terminal) when the subassemblies are coupled.
- the upper peripheral surface of the circumferential shoulder of the boss 630 has a conductive ring 633 (fourth terminal) fixedly secured therein so as to be in contact with terminal 612 ′ (and in electrical connection with second terminal 612 ) when the subassemblies are coupled.
- terminals 632 and 633 are in electrical connection with appropriate hot and neutral leads 632 ′ and 633 ′ respectively which are in turn connected to the appropriate leads for the lighting fixtures.
- a socket 640 having a bore 641 .
- the walls 642 of the socket 640 are internally threaded with threads 643 so as to threadedly receive threaded end 646 of rod 645 .
- the method of releasably coupling first and second subassemblies of an assembly to be mounted on a ceiling comprises, securing one of the subassemblies, the first or secured subassembly, to the ceiling, the secured subassembly including a first portion of a coupling means; supporting the other of the subassemblies, the second or suspended subassembly, on the end of an elongated rod, the suspended subassembly including a second portion of the coupling means and a rod-acceptance means; registering the suspended subassembly to the secured subassembly to engage the coupling means; and, removing the rod.
- the method comprises, attaching one end of a rod a the rod-attachment means secured to the suspended subassembly; exerting a force on the rod sufficient to decouple the suspended subassembly from the secured subassembly; supporting the decoupled suspended subassembly on the end of the rod, and lowering the suspended subassembly.
- the method of releasably magnetically coupling subassemblies of an assembly comprising a base member and a mount comprises, first securing the base member to a ceiling of a room so as to provide a secured subassembly; interposing a magnet and a ferrous plate between the base member and the mount while supporting the mount on the end of a rod, the mount including either the magnet or the ferrous plate, and a rod-attachment means; registering the ferrous plate to the magnet to engage them; and, removing the rod.
- the method also may comprise, securing a dish-shaped base to the ceiling, the base including a first portion of a magnet coupling means fixedly attached therein; supporting a dish-shaped mount on the end of a rod, the second subassembly including a second portion of the coupling means and a rod-attachment means; releasably magnetically coupling the mount to the base; and, removing the rod.
- the mount may be cup-shaped and may have a rigid floor from which an article is to be suspended from the ceiling; and the base also may be dish-shaped having a planar floor to be secured to the ceiling, and walls directed vertically downward so as to be matingly received in the mount in male-female relationship.
- a magnet in the base is secured to its floor, remote from the ceiling for maximum effect.
- the dish-shaped mount also has generally upright walls and a ferrous plate fixedly secured to its floor; and, a rod-attachment means peripherally disposed on the mount.
- the dish-shaped base having a magnet mounted therein is secured to the ceiling;
- the mount is a smoke detector and alarm assembly having a base and removable cover; on one side of the base is mounted smoke-sensing and alarm-giving means; on the other side of the base is mounted a ferrous plate; and the rod-attachment means is secured to the mount, either peripherally on the base of the smoke alarm, or on the cover; and the mount is matingly coupled with the base.
- FIGS. 17-36 Several additional embodiments of a remotely attachable and separable coupling system according to the present invention are illustrated in FIGS. 17-36 .
- the retention mechanism that retains the mount and base member together would be hidden from normal view when the system is assembled.
- the complete system has an aesthetically pleasing structure, while maintaining the basic functionality of the previously described embodiments.
- a remotely attachable and separable coupling system 700 includes both the mentioned “hidden” feature and a dual retention mechanism.
- the system 700 includes a base member 701 , a mount 702 , and an installation and removal tool 703 .
- the base member 701 is intended to be secured to a fixed structure or to some other device, and the mount 702 mates to the base member 701 . Removal and installation of the mount 702 is accomplished through the use of the installation and removal tool 703 .
- the installation and removal tool 703 may be used for remote installations of the system 700 , allowing the user to remain safely on ground level while installing or removing the mount 702 relative to the remotely located or otherwise difficult to reach base member 701 .
- a device 704 may be coupled to the mount 702 ; exemplary devices may be a smoke detector or other detector, a light fixture (or part thereof), a sign, a signaling device, a viewing device such as a camera, a display, etc. Various techniques, e.g. screws, clips, adhesive, etc., may be used to couple the device 704 to the mount 702 .
- the device 704 may be a part of and/or be integral with the mount 702 .
- the dual retention mechanism 710 for holding together or coupling the base member 701 and mount 702 includes a magnetic coupling system or device 711 and a selectively operable mechanical retainer 712 .
- the retention mechanism 710 may include more than two coupling or retainer systems to hold the base member and mount together. Also, it will be appreciated that features of the retention mechanism 710 may be used alone, with other parts that are illustrated and described herein and/or with still other systems, devices or the like.
- the magnetic coupling system 711 includes at least one (or more) magnet 713 and another part 714 to which the magnet may hold with a magnetic retention force.
- Such other part 714 may be a ferrous plate, as was described above, another metal or other material to which a magnet may tend to hold, or even another magnet.
- three magnets 713 a, b, c are shown distributed about the mount 702 . Each magnet may couple magnetically to the ferrous plate 714 or the like.
- four magnets, 713 a - 713 d are shown.
- the selectively operable mechanical retainer 712 provides a secure mechanical coupling between the base member 701 and mount 702 when coupled together. Such mechanical coupling ordinarily would retain the base member 701 and mount 702 coupled together in case the magnetic coupling system 711 were to release unexpectedly or otherwise.
- the selectively operable mechanical retainer 712 includes a movable grabber member 715 and a retention member 716 .
- the grabber member 715 may be operated by the installation and removal tool 703 .
- the installation and removal tool 703 is used to couple and/or to decouple the mount 702 with respect to the base member 701 .
- the tool includes decoupling arms 717 that cause the grabber member 715 to retract from a retaining or locking relation with the retention member 716 as the decoupling arms are inserted into the mount 702 .
- the tool 703 has a base 718 a with a socket 718 b that accepts an elongated member, such as a pole 720 .
- the socket and pole may be threaded at 719 a to secure the base and pole together in a threaded connection coupling, and a set screw 719 b may be used to lock the pole to the base, e.g. preventing unscrewing from the threaded connection.
- the pole may increase the reach of the tool to permit access to normally out of reach locations for coupling and/or decoupling the mount 702 with respect to the base member 701 of the system 700 .
- FIGS. 17-21 particularly several views of the base member 701 are shown.
- the base member 701 forms the inner half of the system 700 of the invention and is secured to a structure 721 ( FIG. 18 ), such as a wall, a ceiling or a pole.
- the structure 721 may be relatively fixed, e.g. a wall, or movable, e.g. a pole.
- the base member 701 includes several subcomponents, one of which is the base plate 714 .
- the base plate 714 is the primary instrument for attaching the base member 701 to a fixed object and provides strength and rigidity to the base member 701 .
- Fasteners, such as screws 722 are used to secure the base plate to the structure 721 .
- the base plate 714 is made from a rigid material, such as steel, but it may be made out of any suitable material that provides the strength and rigidity to support the mount 702 and any device 704 attached to the mount.
- the base plate 714 is of a ferrous or other material to which magnets 713 may be held by magnetic force. If the base plate 714 were of non-magnetic material, magnetic materials may be attached to the base plate 714 to provide a coupling mechanism for the magnets 713 of the magnetic coupling system 711 .
- An example of an alternative coupling system to couple the base member and mount may use one or more Velcro® fasteners.
- the magnetic coupling system 711 will be described in more detail below.
- the base plate 714 also is used to attach the remaining subcomponents of the base member 701 . These subcomponents include the retention member 716 , an electrically conductive ring 723 a , a fixed electric terminal 724 a , and an electrical insulation ring 725 .
- the system 700 of the invention has a dual retention mechanism 710 that includes two different coupling systems to secure the mount 702 to the base member 701 .
- the first, the magnetic coupling system or device 711 was briefly described above.
- the second coupling system is the mechanical coupling system 712 , also referred to above as the selectively operable mechanical retainer, which is distributed between the base member 701 and the mount 702 .
- the base member 701 coupling component includes the retention member 716 .
- the retention member 716 is attached to the base plate 714 and may be secured by fasteners, such as a nut and bolt or a screw, or it may be bonded to the base plate 714 .
- the retention member 716 can be constructed in several different forms.
- the retention member 716 may be rectangular in shape, or it may be a set of rails mounted on each side of the base plate 714 , or it may be a circular ring.
- a circular ring has an advantage over other designs in that no matter what the orientation of the mount 702 is relative to the base member 701 , the retention member 716 will always be aligned with its respective member in the mount 702 .
- a rectangular design or rails may only mate correctly in two, four or other specified orientations.
- the retention member 716 has a groove, recess, chase, or other geometry 716 a along its outer edge to accept the grabber member 715 , such as a clip or similar device, from the mount 702 , such that after the mount 702 and the base member 701 are mated together, the clip fits inside the groove or other geometry of the retention member 716 and prevents the two units from separating. Separation requires that the clip 715 be mechanically moved from a position in which it cooperates with the retention member 716 to hold the base member and mount together to a position releasing the mount from the base member.
- the retention member 716 may be made of plastic or any other suitable material.
- Electrical connections 726 may be provided between the base member 701 and mount 702 .
- electrical connections on the base member 701 may provide electrical power from the base member 701 to the mount 702 .
- This electrical power may be used to power a device, e.g. device 704 , which is attached to or is part of the mount 702 .
- a light fixture type device 704 may be the recipient of the power, in which case the power will be 100 , 115 , 220 , 240 VAC or some other suitable line voltage or other voltage.
- the electrical connections also may be used as a signal connection, in which case it will transmit data to and from a device attached to the mount 702 relative to some remote location.
- the device 704 attached to the mount 702 may be a smoke detector and the signal connection may be to a remote computer, the computer having the responsibility of monitoring the status of one or more devices within a building. If the smoke detector detects a problem (e.g. low battery charge, high temperature, or smoke), the smoke detector will transmit the data over the signal connection to the central computer and the computer may act accordingly.
- the electrical connections also may be used to monitor the status of the system 700 and/or the device 704 . For example, instead of sending a digital transmission to a central computer, the signal may be a simple contact closure to an alarm panel, or some other indication device.
- the electrical connections or electrical coupling apparatus between the base member 701 and the mount 702 can take on various forms, several examples being multiple fixed terminals or fixed conductive rails, each spanning a section of the base member 701 and mount 702 respectively.
- Such electrical coupling apparatus may require that the mount 702 and the base member 701 be aligned in a specific orientation relative to each other in order to make the proper connections.
- electrical connections 726 uses electrically conductive circular rings 723 a / 723 b and centrally located fixed electrical terminals 724 a / 724 b , respectively, associated with the base member 701 and mount 702 .
- the conductive circular rings 723 (refers to both 723 a , 723 b ) and fixed terminals 724 (refers to both 724 a , 724 b ) provide a quick and safe mechanism for connecting and disconnecting the electrical signals and/or power between the base member 701 and the mount 702 .
- electrical connection arrangement is not dependent on the orientation of the base member 701 relative to the mount 702 .
- the conductive rings 723 may be rigid or flexible (or one may be rigid and the other flexible).
- a ring 725 separates the conductive ring 723 from the fixed terminal 724 .
- the ring 725 may be of electrically insulating material or other material. It may be electrically conductive if electromagnetic shielding or impedance matching characteristics are desired. The ring itself also could be replaced by an air gap that provides suitable electrical insulation characteristics.
- the ring 725 may include a support portion 725 s that supports the electrically conductive ring 723 a .
- multiple electrical connections may have multiple conductive rings 723 , each conductive ring having a slightly larger diameter than the previous (radially inward) conductive ring, each conductive ring representing a separate electrical connection to the opposite base member or mount, and each conductive ring being separated from adjacent electrically conductive rings by an insulation ring 725 .
- FIGS. 19 A-D the base member 701 , retention member 716 , circular electrically conductive ring 723 a , fixed terminal 724 a , ring 725 and support portion 725 s of the ring 725 are shown. Wires, bus connections, etc., may provide electrical connections from some location to the conductive ring 723 a , fixed terminal 724 a and/or other electrical members of the base member 701 .
- the mount 702 mates to the base member 701 and forms the outer shell of the system 700 of the invention.
- the mount 702 also includes several subcomponents.
- One subcomponent is a cover 730 .
- the cover may be made of a rigid plastic or similar material.
- the cover could be metal and, if necessary, have suitable electrical insulation to avoid short circuits in electrical connections 726 .
- the face 731 of the cover is flat to provide a mounting platform for a device 704 , such as a light fixture or a smoke detector.
- the face 731 may be some other appropriate shape to facilitate attaching to a device 704 or for another purpose.
- Such devices may be electrically powered or battery powered, depending on their intended purpose. If necessary, electrical connections may be provided from the electrically conductive ring 723 a , fixed terminal 724 a and/or any other terminals in the mount 701 to corresponding terminals of the device 704 . Also, as was mentioned above, the device 704 may be integral with or substantially integral with the mount 702 .
- the cover 730 has internal guide rings 732 , which may be circular or other appropriate shape, to facilitate mating the mount 702 to the base member 701 .
- the guide rings 732 may be angled slightly to ease installation of the mount 702 .
- the outer wall 733 of the mount 702 helps to minimize dirt and dust entry in the area between the mount 702 and the base member 701 .
- the outer wall 733 also increases the strength of the overall structure and improves the appearance of the system 700 .
- Magnet mounts or standoffs 734 provide an elevated mounting surface for the magnets 713 , such that the magnets are approximately flush with the top surface of the outer wall 733 and can mate with and secure to the plate 714 .
- the standoffs 734 may be of plastic to avoid interfering with the operation of the magnets 713 , or may be of some other material.
- the magnets 713 and associated components will be discussed in more detail below.
- the conductive ring standoff 736 provides an elevated mounting surface for a conductive ring 723 b such that the conductive ring 723 b also is approximately flush with the top surface of the outer wall 733 .
- the electrical connections 726 within the mount 702 are similar to the electrical connections within the base member 701 . These electrical connections may be for power, such as 115 VAC for a light fixture, for a signal connection to digitally communicate to a remote device, for a simple status indication, such as a contact closure indicating whether the device mounted on the cover is operational, etc.
- the coupling apparatus for the electrical connections are similar to those of the base member 701 . This type of electrical connection provides a quick and safe way to connect and disconnect the electrical signals without the requirement of physically removing a connection (e.g. disconnecting a wire from a terminal).
- the first of the two coupling systems that holds the mount 702 to the base member 701 is the magnetic coupling system 711 .
- the magnets 713 thereof provide force to hold the mount 702 to the base member 701 during installation and removal of the mount 702 .
- There are three magnets mounted in the cover 730 as is shown in FIGS. 17, 18 , and 20 , to provide holding force sufficient to keep the mount 702 and any attached or integral device 704 secured to the base member 701 . More or fewer magnets may be used to achieve application specific results (e.g. to increase the holding force by increasing the number of magnets, to distribute the places where magnetic force is used, to allow use of fewer or more magnets of larger or smaller magnetic strength, etc.).
- the magnets 713 may be bonded by adhesive or other means to the magnet stand offs 734 or they may be secured thereto using a fastener, such as a screw.
- a purpose of the magnetic coupling system 711 is to hold the mount 702 to the base member 701 during installation and removal of the mount. During this period the mechanical coupling system 712 is not active, since during installation and removal of the mount 702 the mechanical coupling system 712 would be selectively disengaged. The mechanical coupling system 712 is discussed in more detail below.
- the magnets 713 also will hold the mount 702 to the base member 701 in the event that the mechanical coupling system were unintentionally released.
- the magnetic coupling system 711 may be replaced by another retention mechanism, such as Velcro® fasteners or a similar device.
- retention mechanisms can operate by placing parts together usually without the need to move parts, e.g. as the movement in the mechanical coupling system 712 .
- the invention also includes the mechanical coupling system 712 .
- the magnetic coupling system 711 and the mechanical coupling system 712 operate in tandem and ensure that if one coupling system fails, the other coupling system will maintain the mount 702 attached to the base member 701 .
- the mechanical coupling system 712 may take on several forms, such as a retractable clip systems shown in FIGS. 17-21 , and in several other drawing figures, or a touch latch ( FIGS. 33-36 ), or a slam latch.
- a retractable clip system 740 type of mechanical coupling system 712 may be used to secure the mount 702 to the base member 701 .
- the clip 715 is integral to the mount 702 and interfaces with the retention member 716 of the base member 701 .
- FIGS. 17, 18 , 20 , and 21 the clip system 740 can be viewed in more detail.
- the clip 715 resides within a clip holder 741 .
- the clip 715 may be metallic, plastic or any suitable material that provides strength and flexibility.
- the clip 715 has a male portion 742 that is supported from a resilient spring like support 743 in the clip holder 741 ; the male portion 742 is effectively spring loaded within the clip holder 741 and tends to extend out of the clip holder 741 at a clip slot 744 .
- the clip male portion 742 engages the retention member 716 of the base member 701 and can be retracted by the insertion of the decoupling arms 717 of the installation and removal tool 703 . The tool will be discussed in more detail later.
- the clip holder 741 includes a tool guide slot 750 that accepts the decoupling arms 717 of the installation and removal tool.
- the tool guide slot 750 is shown in the drawings as being circular in shape, but it may be any geometric configuration e.g. to cooperate with the arms 717 and the clip.
- the shape of the tool guide slot 750 may be keyed to the shape of the arms 717 , e.g. square, circular, hexagonal, or an unusual cross-section shape, so that only arms 717 of the prescribed cross-sectional shape would be able to fit into the tool guide slot and/or to release the mechanical coupling system 712 . This keying can provide a measure of security to avoid removal of the mount 702 from the base member 701 by an unauthorized individual.
- the tool guide slot 750 provides a path along the surface of the clip 715 such that as the arms 717 are inserted, the arms push the clip 715 inside the clip holder 741 , thus disengaging the male portion 742 of the clip from the retention member 716 .
- force may be applied to the mount 702 using the installation and removal tool 703 to break the magnetic bond and thus to remove the mount 702 from the base member 701 . It follows that the reverse procedure may be implemented to install the mount 702 to the base member 701 .
- the clip holder 741 also includes a locking pin guide 752 , which houses a locking pin 753 . The locking pin is discussed in more detail below.
- the installation and removal tool 703 includes a base 718 a , which has an attachment slot 718 b or socket that allows an elongated member such as pole 720 to be inserted into the base.
- the attachment slot 718 b is shown in the drawings as being circular in shape, but it is not limited to such implementations. Insertion and use of a pole 720 allows the installation and removal tool 703 it to be extended into areas not normally accessible to install and/or remove the mount 702 relative to a base member 701 , e.g. without the assistance of some other height altering device, such as a step ladder.
- the decoupling arms 717 extend out from the base 718 a and are of sufficient length to retract the retaining clips 715 as they are inserted into the guide slots 750 urging the male portion 742 of the respective clips into the clip holder 741 so as not to grab to or to lock with respect to the retention member 716 of the mount 702 . Also, the decoupling arms 717 , as well as the other portions of the tool 703 , provide the required strength and stability to support, to manipulate, and/or to position the mount 702 , including any attached device 704 , and the necessary force required to disengage the magnetic coupling system.
- the decoupling arms 717 may have a notch 717 a to provide an interlock with the locking pin 753 , which is discussed below.
- a locking pin or clip 753 may be included within the clip holder 741 of the mount 702 .
- the locking pin 753 includes a notch 754 and also includes a surface 754 a that interfaces with a corresponding notch 717 a in a decoupling arm 717 of the installation and removal tool 703 .
- the locking pin or clip 753 is maintained in an extended position by a spring 755 , and descends into the clip holder 741 by striking the base member 701 as the mount 702 and base member 701 are mated.
- the locking pin 753 moves perpendicularly to the tool guide slot 750 , thus intersecting the decoupling arm 717 of the installation and removal tool 703 at approximately a 90 degree angle. In the retracted position, the notch 754 of the locking pin 753 aligns with the tool guide slot 750 , thus providing an unobstructed path for the decoupling arms 717 to travel. However, if the locking pin 753 is extended, as would be the case when the mount 702 is not mated to the base member 701 , the tool guide slot 750 is obstructed by the locking pin surface 754 a , preventing an object from passing the locking pin 753 .
- the notch 717 a of the decoupling arm 717 lines up with the locking pin 753 . If the locking pin is in the extended position, the locking pin surface 754 a interlocks with the decoupling arm notch 717 a . This prevents the decoupling arm 717 from being removed from the tool guide slot 750 , and the mount 701 is effectively locked to the tool 703 .
- the tool 703 is shown with two decoupling arms 717 , there may be only one or may be more than one, and the clip 715 and associated parts for coupling with the retention member 716 may be correspondingly modified to work in cooperation with a number of decoupling arms.
- the same or similar method of retaining the mount 702 on the tool 703 also could be achieved in using a clip or the like which could be depressed by any part of the member 701 .
- the base member 701 is assumed to be fixed to a rigid member, such as a wall or a pole.
- a rigid member such as a wall or a pole.
- the mount 702 including the device 704 onto the installation and removal tool 703 .
- the retracting pin 753 must be manually depressed into the mount 702 . Holding the retracting pins 753 against the mount 702 , the decoupling arms 717 of the tool 703 are inserted into the tool guide slots 750 . After the decoupling arms 717 are fully inserted into the mount 702 , the locking pins 753 are released, thus locking the mount 702 to the tool 703 .
- the pole 720 is inserted into the mount and the locking screw 719 b is tightened to clamp the pole 720 securely into socket 718 b .
- the magnetic coupling system 711 provides holding force to keep the mount 702 attached to the base member 701 .
- the locking pins 753 are pressed into the mount, aligning the notch 754 of the locking pin 753 with the tool guide slot 750 .
- This provides an unobstructed path in the tool guide slot 750 for the decoupling arms 717 to pass through, thus allowing the decoupling arms 717 to be retracted from the mount 702 .
- the clip 740 extends out of the clip slot 744 and engages the retention member 716 of the base member, thus locking the base member 701 and mount 702 together.
- the tool 703 is positioned towards the mount 701 .
- the decoupling arms 717 are inserted into the tool guide slots 750 , thus urging the clip 740 back into the clip holder 741 and unlocking the mount 702 from the base member 701 .
- the magnetic coupling system 711 is now holding the base member 701 and mount 702 together.
- force is applied to the mount 702 to break the magnetic bond between the base member 701 and the mount 702 .
- the locking pins 753 are extended, placing surface 754 a of the locking pin 753 in the tool guide slot 750 .
- Notches 717 a of the decoupling arms interlock with the surface 754 a to prevent movement of the decoupling arms 717 , thus locking the mount to the tool 703 .
- the mount may now be safely lowered to ground level.
- mount 702 ′ is illustrated.
- the difference between the mount 702 ′ and the mount 702 is that the mount 702 ′ includes four magnets 713 .
- the four magnets 713 are positioned on respective supports of the cover 730 ; and the magnets are distributed about the circular shape of the cover 730 .
- the magnets are not all equally spaced about the circumference of the cover 730 , they are distributed so as to provide suitable holding function as was described above.
- the mount 702 ′ is shown in FIGS. 22-27 with the clip 715 omitted so the shape and arrangement of the clip slot 744 , clip holder 741 and tool guide slot 750 clearly can be seen. Also, the circular ring contact 723 b and fixed terminal 724 b are not illustrated in FIGS. 22-27 so the shape and arrangement of the support surface 725 s for the ring contact and the support 724 b ′ for the fixed terminal clearly can be seen. In FIGS. 23 and 24 section views are illustrated; and from those views it can be seen that various portions of the mount 702 ′ can be molded or otherwise formed of a single integral material, e.g., plastic, metal or other material.
- FIGS. 28-32 illustrated are several alternate embodiments of dual retention mechanisms for the various embodiments of systems 700 etc. disclosed herein.
- the dual retention system illustrated in FIGS. 28-32 include a magnetic retention mechanism of the various types described above, or some other retention mechanism that works based on contact or proximity, e.g., as Velcro fasteners, magnets or the like. Additionally, the dual retention system of FIGS. 28-32 includes a latching mechanism similar to that illustrated in and described with respect to the latching mechanism 510 of FIG. 15 .
- the system 700 ′′ has a base member 701 ′′, mount 702 ′′, magnetic retention mechanism 711 , and mechanical retention mechanism 760 .
- the mechanical retention mechanism includes two pairs of catch members 761 a , 761 b and 762 a , 762 b .
- the catch members 762 are mounted on a movable latch arm 512 ′ so as to be movable to and fro relative to the catch members 761 a , 761 b .
- the latch arm 512 ′ is movable, e.g., slidable along and parallel to the bottom wall of the cover 730 ′ of the mount 702 ′′.
- the latch arm 512 a has semicircular portions that allow space for a centrally located magnet 613 of the magnetic retention mechanism. If desired, the magnets may be about an outer perimeter area of the cover 730 ′ leaving the central area of the cover of the mount 702 ′′ available for electrical terminals, contacts and the like as was described above.
- a spring-biased lever arm 526 urges the latch arm 512 ′ to the right relative to the illustration of FIGS. 28 and 29 , to tend to move the catch members 762 to latch or to be in locking engagement with respective catch members 761 a , 761 b .
- inserting of a pole (rod, or the like) 720 for example, into the socket 520 urges the lever arm 526 and the latch arm 512 ′ to the left to unlatch or to unlock the respective pairs of catch members and/or to move the catch members 762 out of position relative to catch members 761 for installation of the mount to the base member without the catch members interfering with each other until the pole is removed.
- the mount With the pole 720 inserted in the socket 520 , the mount can be installed on the base member; the mount would be retained to the base member by the magnet retention mechanism; and the pole then could be removed from the socket to allow the mechanical retention mechanism of the described catches to hold the mount and base member.
- FIGS. 30-32 alternate arrangements of latch arms and catches generally of the type illustrated in FIGS. 28 and 29 are illustrated.
- the views illustrated in FIGS. 30-32 are “looking down” into the cover 730 of respective mounts 702 ′′.
- Respective pairs of catch members mounts analogous to catch members 761 , 762 are designated 763 ; it will be appreciated that the catch members 762 portion of a pair 763 would be associated with the mount 702 ′′, and the catch members 761 would be in the base member 701 ′′.
- the movable latch arm includes three parts 512 a , 512 b , 512 c coupled to support respective catch members 762 and coupled to be moved by the spring-biased lever arm 526 in the socket 520 as was described above.
- the movable latch arm also is in three parts 512 a , 512 b , 512 c ′.
- the movable latch arm part 512 c ′ is pivotable about a pivot 764 so that as the movable latch arm part 512 b moves to the left relative to the illustration, the catch member 762 of the pair of catch members 763 c at the left end of the movable latch arm part 512 b moves left while the catch member 762 of the pair of catch members 763 d at the upper end (as illustrated) of the movable latch arm part 712 c ′ moves to the right.
- the orientation of the catch member 761 of the pair of catch members 763 d would face in the opposite direction to the catch member 761 a in FIG. 29 . Therefore, the pairs of catch members 763 a and 763 d would work in opposite directions to retain the mount 702 ′′ to the base member 701 ′′, which may provide increased stability or security of retention function of the mechanical retention mechanism.
- FIG. 32 another embodiment or arrangement of catch members 763 a - b of mechanical retention mechanism is illustrated.
- springs 765 resiliently urge the parts of the movable latch arm 512 and, thus, the catch members 763 a - b to locked condition.
- insertion of a pole 720 into the socket 520 urges the parts of the latch arm 512 and, thus, the catch members 762 associated with the respective catch members 763 a - b to unlocked or unlatched condition, to facilitate removal of the mount 702 ′′ from a base member 701 ′′.
- the springs 765 may supplement the spring force of the spring-biased lever arm 526 or may be the sole provider of the restoring force to locked condition; and in the latter case the spring-biased lever arm 526 may be replaced by an arm that is pivotably mounted in the socket 520 .
- the mechanical coupling system 712 may be implemented in several different embodiments, such as a touch latch and/or a slam latch.
- a touch latch implementation of the present invention is shown.
- the base member 701 is shown in FIGS. 33-34 .
- a receptacle 770 is a circular hole in the base member 701 and accepts the touch latch 772 .
- the diameter of the receptacle 770 is smaller than the diameter of the touch latch 772 , thus preventing the touch latch from passing through the receptacle; e.g. it acts as a centering guide.
- the reinforcing plate 774 provides added strength to the receptacle 770 and is the primary latch point for the touch latch locking arm (described below).
- the base member 701 includes an outer wall 776 , which also functions as a supplemental guide ring to facilitate mating the base member 701 and mount 702 .
- the upper guide ring 778 further assists in guiding the travel of the mount 702 as it is depressed into the base member 701 to toggle the touch latch 772 .
- the mount 702 that includes part of the touch latch system can be seen.
- the lower guide ring 786 interfaces with the upper guide ring 778 of the base member 701 to assist in guiding the mount 702 towards the base unit 701 as the touch latch 772 is manipulated.
- the touch latch 772 interfaces with the receptacle 770 of the base member 701 to lock the mount to the base member.
- the diameter of the touch latch 772 is greater than the diameter of the receptacle 770 , thus preventing the touch latch from passing through the receptacle (the upward direction, as shown, although direction is not crucial).
- the latch cannot be pulled out of the reinforcing plate 774 in which the receptacle 770 is located (the downward direction). Thus, if the locking arm 782 is extended, the touch latch can neither be moved “upward” or “downward”.
- the touch latch is locked in position.
- the touch latch 772 changes state (locked or unlocked) each time the latch is depressed. For example, starting in the locked state, if the mount 702 is pressed toward the base member 701 , the latch toggles retracting the locking arm. Since the retracting arm 782 is no longer preventing the “downward” motion, the mount 702 may be removed.
- a spring 784 provides a force to return the touch latch to an extended position each time the latch is depressed.
- a slam latch is analogous to a door latch in that disengaging the latch requires some external force, such as a twisting of a door knob or depressing a release button. Locking the latch requires merely pressing the latch against its mating member.
- an assembly 800 (also referred to herein as a coupling system or a mounting system) for releasably coupling a first subassembly 802 and a second subassembly 804 .
- the first subassembly 802 is secured to a mounting surface, e.g., a wall or a ceiling, and the second subassembly 804 provides a mounting surface 806 for mounting devices, such as a smoke detector, a light fixture, a sign and the like.
- the second subassembly defines a tool acceptance aperture 808 , such as a tool socket, which provides a location for attaching a tool, such as an elongate rod, to the second subassembly 804 .
- a tool acceptance protrusion may be employed.
- the tool facilitates positioning the second subassembly 804 with respect to a remotely located (e.g., an area that cannot be reached without the use of a step ladder) first subassembly 802 for coupling the subassemblies together.
- the tool also facilitates removing the second subassembly from the first subassembly.
- the assembly 800 includes a dual holding system (also referred to herein as a dual engagement system or a dual retention system) that includes a first holding mechanism 810 , which operates using a gravitational force in conjunction with an interlock, and a second holding mechanism 812 , which operates based on a positional relationship between the first and second subassemblies.
- a dual holding system also referred to herein as a dual engagement system or a dual retention system
- first holding mechanism 810 which operates using a gravitational force in conjunction with an interlock
- a second holding mechanism 812 which operates based on a positional relationship between the first and second subassemblies.
- the first holding mechanism 810 includes a ledge interlock 814 .
- the ledge interlock 814 prevents the second subassembly 804 from moving in a direction generally perpendicular to the first subassembly 802 (e.g., moving in a generally horizontal direction when the second subassembly 804 is coupled to the first subassembly 802 mounted on a generally vertical support). Additionally, the ledge interlock 814 prevents the second subassembly 804 from moving in a generally downward direction.
- the second holding mechanism 812 includes, for example, a magnet 816 and a magnifically responsivle plate to which the magnet may tend to hold, e.g., a ferrous plate 818 .
- the magnet 816 is coupled to one of the first subassembly 802 and the second subassembly 804
- the ferrous plate is coupled to the other of the first subassembly 802 and the second subassembly 804 .
- the second holding mechanism 812 provides a holding force between the first subassembly 802 and the second subassembly 804 .
- a magnetic system is illustrated in the exemplary embodiment
- other components can be used to provide the holding function of the second holding mechanism 812 .
- mating hooks and eyelets e.g., Velcro® fasteners
- a detent means integrally formed with the first subassembly and the second subassembly such as a peripheral detent, a latching means, or an interference fit can provide the holding function of the second holding mechanism.
- the first subassembly 802 generally is a cuboid with a prism-shaped or wedge-shaped ledge 820 extending from a substantially planar front wall 822 and a substantially planar first top wall 824 of the first subassembly 802 .
- the substantially planar first top wall 824 is connected to a substantially planar second top wall 826 through an outwardly flaring third wall 828 .
- the angle 830 of the third wall 828 relative to the first top wall 824 can vary depending on the desired holding force and ease of installation/removal of the second subassembly 804 from the first subassembly 802 .
- a steep angle e.g., a 90 degree angle between the first top wall 824 and the third wall 828
- a shallow angle e.g., a 10 degree angle between the first top wall and the third wall 828 .
- the steeper angle requires slightly more manipulation of the second subassembly 804 for removal and/or installation of the second subassembly 804 with respect to the first subassembly 802 .
- the first subassembly 802 also includes a generally planar back wall 832 for mounting to a secure surface, such as a wall, a pole, etc.
- the first subassembly can be mounted to a secure surface using fasteners, such as screws, for example.
- a planar bottom wall 834 generally is parallel to the first top wall 824 and the second top wall 826 .
- the ferrous plate 818 (or a magnet 816 ) can be attached to the front wall 822 and, as stated above, the ferrous plate 818 in conjunction with magnets 816 provide the holding force of the second holding mechanism 812 .
- Two substantially planar sidewalls 836 complete the first subassembly 802 .
- the second subassembly 804 includes or otherwise defines a socket 850 that substantially conforms to the shape of the first subassembly 802 .
- the socket is formed between a substantially planar bottom member 852 , a top member 854 , and a substantially planar back member 856 , which is generally perpendicular to the bottom member 852 and the top member 854 .
- the second subassembly includes or otherwise defines a ledge interlock 814 that interfaces with the ledge 820 of the first subassembly 802 .
- the ledge interlock 814 is formed in the top member 854 by an upwardly flaring first inner wall 858 connecting a second top inner wall 860 and a third top inner wall 862 .
- the second top inner wall 860 and the third top inner wall 862 are generally parallel to each other and to a bottom inner wall 866 , and perpendicular to a back inner wall 864 .
- the third top inner wall 862 is at a higher elevation than the second top inner wall when viewed in the orientation shown in FIG. 39B .
- An angle 868 between the second top inner wall 860 and the upwardly flaring first inner wall 858 should be about the same as the angle 830 of the first subassembly 802 . This will help ensure that the ledge interlock 814 of the second subassembly 804 properly interfaces with the ledge 820 of the first subassembly 802 .
- the top member 854 includes a planar top wall 870 , which is generally parallel to the second and third top inner walls 860 , 862 .
- the top member 854 also includes a top front wall 872 , which connects and is generally perpendicular to the top wall 870 and the second top inner wall 860 .
- the bottom member 852 includes a substantially planar bottom wall 874 , which is generally parallel to the bottom inner wall 866 .
- the bottom member 852 also includes a bottom front wall 876 , which connects and is generally perpendicular to the bottom wall 870 and the bottom inner wall 866 .
- the bottom member 852 and the top member 854 connect to the back member 856 .
- the back member 856 includes the back inner wall 864 and the mounting surface 806 .
- magnets 816 or the ferrous plate
- the mounting surface 806 is a generally planar surface, which is used to attach devices, such as, for example, a smoke alarm, a light fixture, a sign and the like.
- a tool acceptance aperture 808 such as a tool socket, is integrally formed in a bottom portion of the back member 856 and provides a means for attaching a tool, such as an elongate rod, to manipulate the second subassembly 804 relative to the first subassembly 802 .
- the tool may be biased against a closed end 878 of the socket 808 by gravity, or may be threadedly engaged therein.
- a locking mechanism such as a ball and groove lock (not shown), may be employed to secure the tool to the second subassembly 804 .
- Planar sidewalls 880 join the bottom member 852 , the top member 854 and the back member 856 .
- the second subassembly 804 can be coupled to the first subassembly 802 by using a tool, such as an elongate rod, to register the second subassembly to the first subassembly.
- a tool such as an elongate rod
- the tool is inserted into the socket 808 of the second subassembly 804 , and the second subassembly is initially positioned at an angle with respect to the first subassembly.
- the angle at which the second subassembly 804 is initially positioned with respect to the first subassembly 802 depends on the size of the ledge interlock 814 , the ledge 820 , and the bottom member 852 , as well as the angles 830 , 868 used to construct the ledge interlock and the ledge.
- the angle between the second subassembly 804 and the first subassembly 802 must be sufficient to allow the ledge interlock 814 to fit over and engage the ledge 820 .
- the angle between the second subassembly 804 and the first subassembly 802 is reduced until the back inner wall 864 of the second subassembly 804 is substantially parallel to the front wall 822 of the first subassembly 802 .
- the first holding mechanism 810 is engaged and is providing a holding force that prevents both downward movement and movement generally perpendicular to the first subassembly and the second subassembly, e.g., lateral or horizontal movement.
- the second holding mechanism 812 is engaged and is providing a holding force that tends to prevent movement of the second subassembly 804 away from the first subassembly 802 . After the second holding mechanism has engaged, the tool is removed from the socket 808 .
- the reverse of the above procedure is performed.
- the tool can be inserted into the socket 808 of the second subassembly 804 , and an angular force applied to the second subassembly.
- the angular force causes the second holding mechanism 812 to release, thereby allowing the second subassembly 804 to be rotated approximately about the ledge 820 to create an angle between the first and second subassemblies.
- the angle is increased until sufficient clearance is established to permit the ledge interlock 814 of the second subassembly 804 to be lifted up and over the ledge 820 of the first subassembly 802 .
- the second subassembly 804 is lowered and then removed from the tool.
- an alternative embodiment of an assembly 800 ′ is shown.
- the assembly 800 ′ is similar to the assembly 800 shown in FIG. 37 and includes a first subassembly 802 ′ and a second subassembly 804 ′.
- the first subassembly and the second subassembly include a duel retention system, which includes a first holding mechanism 810 that operates using a gravitational force in conjunction with an interlock, and a second holding mechanism 812 ′ that operates based on a positional relationship.
- the first holding mechanism of the assembly 800 ′ is substantially identical to the first holding mechanism of the assembly 800 described in FIG. 37 .
- the second holding mechanism 812 ′ operates using a positive latch.
- the positive latch includes components in both the first subassembly 802 ′ and the second subassembly 804 ′.
- a slot 880 is formed in a front wall 822 ′ of the first subassembly 802 ′.
- the slot 880 is generally rectangular in shape and is sized to accommodate a catch 882 in the second subassembly 804 ′. It should be appreciated, however, that size and shape of the slot can very depending on the size and shape of the catch 882 .
- the catch 882 can include an elongate portion 884 that is generally rectangular in shape and has a pivot point 886 .
- the pivot point 886 is approximately at a center point of the elongate portion 884 of the catch 882 .
- a shaft (not shown) is inserted in the pivot point 886 and is attached to an inner portion 887 of the back member 856 ′.
- One end of a spring 888 is coupled to a back end 890 of the catch 882 , and the other end of the spring 888 is coupled to the closed end 878 of the socket 808 .
- the spring 888 tends to force the back end 890 of the catch 882 in a downward direction relative to the pivot point 886 , thereby raising a front end 892 of the catch relative to the pivot point 886 .
- the front end 892 of the catch 882 includes a wedge shape head 894 , which includes an upwardly and backwardly flaring wall 896 and a back wall 898 .
- the back wall 898 is substantially perpendicular to the elongate portion 884 of the catch 882 .
- the wall 894 of the catch 882 contacts an upper portion 899 of the slot 880 in the first subassembly. This contact tends to push the front end 892 of the catch 882 in a downward direction, thereby causing the catch to pivot and compress the spring 888 .
- the movement of the front end 892 of the catch 882 in a downward direction relative to the upper portion 899 of the slot 880 allows the catch to pass through the slot 880 .
- the force of the compressed spring 888 against the back end 890 of the catch 882 causes the catch to pivot, thereby raising the front end 892 and seating the back wall 896 of the catch against the upper portion 899 of the slot, thereby creating a secure interlock between the first subassembly 802 ′ and a second subassembly 804 ′.
- a tool can be used to operate the second holding mechanism 812 .
- the assembly 800 ′ is coupled and decoupled in a similar manner as the assembly 800 of FIG. 37 .
- the mechanics employed, however, are different between the two embodiments.
- the second subassembly 804 ′ can be decoupled from the first subassembly 802 ′ using a tool, e.g., an elongate rod, which is inserted into the socket 808 of the second subassembly 804 ′. As the tool is inserted into the socket, it comes in contact with the back end 890 of the catch 882 .
- a tool e.g., an elongate rod
- the contact causes the catch to pivot, e.g., the back end 890 of the catch 882 raises with respect to the pivot point 886 and, thus, the front end 892 of the catch lowers with respect to the pivot point 886 .
- the front end 892 of the catch 882 pivots downward, it disengages the upper portion 899 of the slot 880 , thereby releasing the second holding mechanism 812 .
- the second subassembly 804 ′ can be removed from the first subassembly 802 ′ as was described previously with regards to the assembly 800 of FIG.
- the second subassembly 804 ′ is manipulated using the tool to create an angle between the first subassembly and the second subassembly that is sufficient to allow the ledge interlock 814 to clear the ledge 820 .
- the second subassembly 804 ′ can be coupled to the first subassembly 802 ′ using the reverse of the above-described procedure.
- the tool is inserted into the socket 808 of the second subassembly 804 ′, thereby forcing the back end 890 of the catch 882 up with respect to the pivot point 886 .
- the front end 892 of the catch moves in a downward direction with respect to the pivot point 886 .
- the second subassembly 804 ′ is manipulated at an angle up and over the ledge 820 of the first subassembly to engage the first holding mechanism 810 .
- the angle between the second subassembly 804 ′ and the first subassembly 802 ′ is reduced until the front wall 822 ′ of the first subassembly 802 ′ and the back wall 864 ′ of the second subassembly 804 ′ are substantially parallel to each other.
- the catch 882 of the second subassembly is within the slot 880 of the first subassembly.
- the tool is removed from the tool socket 808 and the spring 888 pushes on the back end 890 of the catch 882 , thereby causing the front end 894 of the catch to rise with respect to the pivot point 886 .
- the back wall 898 of the catch contacts the top portion 899 of the slot 880 , thereby engaging the second holding mechanism.
- the assembly 800 ′ also includes electrical contacts 900 a , 900 b mounted in the first subassembly 802 ′, and corresponding electrical contacts 902 a , 902 b mounted in the second subassembly 804 ′.
- the electrical contacts can provide electrical power to devices mounted on the second subassembly.
- the contacts 900 a , 900 b on the first subassembly 802 ′ are recessed, for example, to minimize the likelihood of accidental contact with electrical power.
- the contacts 902 a , 902 b of the second subassembly 804 ′ extend out from the surface of the second subassembly to reach in the recess of the first subassembly and provide electrical continuity between the contacts. It should be appreciated that the electrical contacts can be included in any of the embodiments discussed herein.
- FIG. 44 another embodiment of an assembly 800 ′′ is shown.
- the assembly 800 ′′ is similar to the assembly 800 , 800 ′ shown in FIGS. 37 and 40 , respectively, and includes a first subassembly 802 ′′ and a second subassembly 804 ′′.
- the first subassembly and the second subassembly include a duel retention system, which includes a first holding mechanism 810 that operates using a gravitational force in conjunction with an interlock, and a second holding mechanism 812 ′′ that operates based on a positional relationship.
- the first holding mechanism of the assembly 800 ′′ is substantially identical to the first holding mechanism of the assembly 800 , 800 ′ described in FIGS. 37 and 40 .
- the second holding mechanism 812 ′′ operates using a detent means.
- the detent means includes components in both the first subassembly 802 ′′ and the second subassembly 804 ′′.
- a ridge 910 is formed in a bottom wall 834 ′ of the first subassembly 802 ′′.
- the ridge 910 can be semi-circular in shape, for example, and is sized to fit within a groove 912 (discussed below with respect to FIGS. 46A and 46B ) in the second subassembly 804 ′.
- the ridge 910 for example, can span the width of the bottom wall 834 ′ of the first subassembly 802 ′′ or it can span only a portion of the bottom wall 834 ′.
- the extension of the ridge 910 below the bottom wall 834 ′ depends on the desired holding force of the second holding mechanism 812 ′′. As an example, an extension of about 0.25 inches is sufficient to provide a holding force for the second holding mechanism. It is to appreciated that other sizes and geometries are contemplated and within the scope of the invention.
- the groove 912 of the second subassembly 804 ′′ is formed in bottom inner wall 866 ′ of the second subassembly 804 ′′.
- the groove 912 is formed in a shape that provides a secure interlock with the ridge 910 , such as, for example, a semi-circular shape. Additionally, the groove 912 is formed to facilitate separation of the second subassembly 804 ′′ from the first subassembly 802 ′′ when a sufficient force is applied to the second subassembly.
- a front portion of the bottom member 852 ′ can include an upwardly flaring wall 914 to facilitate the first member 852 ′ overcoming the ridge 910 as the second subassembly 804 ′′ is registered to the first subassembly 802 ′′.
- the wall 914 of the first member 852 ′ contacts the ridge 910 of the first subassembly. This contact tends to push the first member 852 ′ in a downward direction relative to the first subassembly 802 ′, thereby allowing the first member 852 ′ to clear the ridge 910 .
- the ridge 910 interfaces with the groove 912 to create a secure interlock between the two subassemblies.
- the assembly 800 ′′ is coupled and decoupled in a similar manner as the assembly 800 of FIGS. 37 and 40 .
- the ridge 910 and groove 912 provide the holding function.
Abstract
An article for mounting from or against the ceiling is removably coupled to a base fixedly secured to the ceiling, by a person standing on the floor, supporting the article on an elongated rod, and thrusting the article against the base to couple the article and the secured base. The article is removed by inserting the rod into the article, exerting a force on the rod to uncouple the article from the base, and supporting the article on the rod as the article is lowered. The article is thus positioned on or hung from the ceiling, without being manually contacted by the person. The article may be used to mount other devices, such as a sign, smoke detector, etc. or may include such device as a part of the mount.
Description
- This application is a continuation-in-part of application Ser. No. 10/007,509, filed on Dec. 5, 2001, which is a continuation-in-part of application Ser. No. 09/730,920, filed on Dec. 6, 2000, now U.S. Pat. No. 6,644,617, all of which are hereby incorporated by reference in their entireties.
- The present invention relates to an improvement in access means for an assembly located on a room's ceiling or other overhead location, by a human manipulating the assembly while standing on the room's floor, seated in a wheelchair, or otherwise unable to reach the assembly unassisted. The primary purpose of the assembly is to suspend an article, such as a sign, or, pendently to support a device, such as a smoke detector and alarm or other electrically actuated fixture, e.g., light fixture, which is to be secured to the ceiling, and periodically removed for renewal, maintenance or inspection. The assembly of the invention also may be used to mount or to support various devices from a wall, ceiling, pole, or virtually any other member, part or the like; and/or the assembly may be included as part of such device.
- Magnetic holders, such as are disclosed in U.S. Pat. No. 5,472,163 to Callas, are used to display signs on upright metal supports. A permanent magnet is wedged between a pair of metal plates and enclosed within a shell shaped to provide horizontal stability and a strong holding force on the support. An upright cylindrical adaptor attached to the top of the shell is used to accommodate the shaft of the sign.
- The problem to be solved herein is different from that addressed in the '163 patent. This invention is directed to a problem that is encountered when dealing with an article suspended, or to be suspended from a ceiling, or other overhead location, in typical everyday situations. The problem: how does a person locate and manually secure an article on a high, out-of-reach ceiling or other overhead location without using something to stand on, for example, a step-ladder, or on another out-of-reach location. Thereafter, how does the person remove the article when required to do so.
- Merchandise such as toys, garments, groceries, hardware, lumber, and office supplies, is commonly advertised within a store by signs hanging from the store's ceiling. Such signs may serve to direct a customer to a particular product, for example, bread in a grocery store; or the sign may serve to advertise a “special” on a particular item. Because the locations of goods in a store are frequently changed, as is the “special” offered from week to week, the location of the signs, as well as the signs themselves, must also be correspondingly changed. This is typically a time-consuming effort usually carried out after a store is closed for the day, and requires that an employee drag a step-ladder from one sign to the next one which is to be changed, or to use a motorized scissor-jack to travel from one to the other and change it. With the advent of stores which are open round the clock (the “24 hr. store”) signs must be changed during a time when there are the fewest customers on the premises, if only to avoid risk of injury to them.
- In numerous celebratory situations, congratulatory signs, streamers and balloons are hung from the ceiling, usually tied to a pendent fixture such as a hanging light or ceiling fan. Restaurants and hotels have “party rooms” dedicated to celebrations, and such a room's ceiling is sometimes provided with hooks, the same color as the ceiling, which are unobtrusively screwed into the ceiling. The hooks are used to suspend balloons and streamers, which are required to be changed for each occasion, entailing a substantial amount of time-consuming labor. The simple task of inserting a hook into the eye of an eye-bolt on the ceiling, or snagging a hook on the ceiling with another hook from which a bunch of balloons is hung, while standing on a step-ladder is a trying and time-consuming task. It would be far less expensive and more efficient to be able to change the pendent decorations without having to mount a stepladder for each decoration to be changed.
- Another article suspended from a ceiling, which is required to be reached relatively frequently, is a battery-operated (or battery backed) smoke detector and alarm (“smoke alarm”), the battery for which must be changed when its charge is depleted. As anyone who has replaced batteries in a smoke alarm secured to the ceiling is well aware, enthusiasm for changing the battery, immediately upon noting that it must be changed, is inhibited, and the task is complicated, by having to climb onto a step-ladder while removing and replacing the battery with outstretched arms. Typically, the battery is to be inserted in a tightly-fitting harness in the body of the smoke alarm. To ease the task, and allow a person to change the battery with less stress on his arms, U.S. Pat. No. 5,577,696 to Kramer discloses a steel base plate which is fastened to the ceiling; a magnet is held in a receiver secured to the smoke alarm, so that when the magnet is placed on the steel base plate, the smoke alarm is held on the ceiling. When the battery is to be changed, the magnetic coupling allows one to remove the smoke alarm from the base plate, but one has to stand on a stepladder to do so. The difficulty of registering a steel plate to a magnet secured to the ceiling is minimal so long as the task is addressed by a person on a stepladder and the magnet is conveniently within the reach of the person's arm. The difficulty of the simple task is greatly exaggerated if the steel plate is to be registered to the magnet on a ceiling which cannot be reached with a conveniently available step-ladder, the higher the ceiling, the more daunting the task, and certainly impossible if the person is in a wheelchair. It would be far more convenient and safer, to remove the smoke alarm without having to use the stepladder.
- One aspect of the novel assembly disclosed herein comprises two separate parts, one of which, a first part, is secured to the ceiling, wall, or other overhead location, usually out of reach location; the other, second part, may be secured to the article, or, may be the article itself, adapted to be releasably coupled internally with the first part, that is, coupled with coupling means within the body of the first part. Components of the assembly are adapted to removably secure an article to the high or other out-of-reach location with a manually manipulated elongate tool or rod, referred to herein as a “rod” for brevity, thus avoiding using a step-ladder, the effort of hauling the step-ladder underneath the assembly, and the risk of injury posed by having to deal with the assembly on the high location while standing on the step-ladder, for example.
- In accordance with one aspect of the invention, the invention is directed to a mounting system, which includes a first subassembly attachable to a support and a second subassembly that is releasably attachable to the first subassembly. A multi-retention mechanism holds the first subassembly and the second subassembly together, and includes a first retention mechanism that is selectively operable to release and hold using a gravitational force and a second retention mechanism that is selectively operable to release and hold responsive to a positional relationship between the first subassembly and the second subassembly.
- In accordance with another aspect of the invention, the invention is directed to a method of releasably coupling a first subassembly to a relatively remote secured second subassembly. The method includes coupling a tool to the first subassembly; registering the first subassembly at an angle with respect to the second subassembly, thereby engaging a first holding mechanism; reducing the angle between the second subassembly and the first subassembly, thereby engaging a second holding mechanism; and uncoupling the tool from the first subassembly.
- In accordance with another aspect of the invention, the invention is directed to a method of removing a suspended subassembly that is releasably coupled to a relatively remote secured subassembly. The method includes coupling a tool to the suspended subassembly; applying a force to the tool to disengage a second holding mechanism, wherein the force is substantially perpendicular to an orientation of the secured subassembly; increasing an angle between the second subassembly and the first subassembly to disengage a first holding mechanism; and withdrawing the suspended subassembly.
- A number of features are described herein with respect to embodiments of the invention. It will be appreciated that features described with respect to a given embodiment also may be employed in connection with other embodiments.
- Other aspects, features, and advantages of the invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, while indicating several embodiments of the present invention, are given by way of illustration only and various modifications may naturally be performed without deviating from the present invention.
- The foregoing and additional objects and advantages of the invention will best be understood by reference to the following detailed description, accompanied with schematic illustrations of several embodiments of the invention, in which illustrations like reference numerals refer to like elements, and in which:
-
FIG. 1 is a cross-sectional side elevation view of assembled first (base) and second (mount) subassemblies, the base being secured to a ceiling, and the mount magnetically held against the base which is received within the mount. -
FIG. 2 is a bottom plan view, that is, viewed from beneath, of the assembled base and mount shown inFIG. 1 . -
FIG. 3 is a cross-sectional side elevation view of the base secured to the ceiling. -
FIG. 4 is a bottom plan view, that is, viewed from beneath, of the base shown inFIGS. 1 and 2 . -
FIG. 5 is a cross-sectional side elevation view of the mount secured to the ceiling (the base is not shown). -
FIG. 6 is a bottom plan view, that is viewed from beneath, of the mount shown inFIG. 5 . -
FIG. 7 is a side elevation cross-sectional view of a coupling, including a base to which is magnetically coupled a mount, to the lower surface of which, a smoke detector and alarm assembly (“smoke alarm”) is secured. -
FIG. 8 is a side elevation cross-sectional view of a coupling, including a mount having a larger lower surface than that provided by the mount illustrated inFIG. 5 . -
FIG. 9 is a side elevation cross-sectional view of a coupling, including a base the lower peripheral edges of which are interfitted in a circumferential groove providing a detent means by which the base is coupled to the mount, to the lower surface of which, a smoke alarm is secured. -
FIG. 10 is a side elevation cross-sectional view of another coupling, including a mount required to having a larger lower surface than that provided by the mount illustrated inFIG. 5 . -
FIG. 11 is a side elevation cross-sectional view of a coupling, including a base “hard wired” to a pair of electrical leads in a ceiling, and electrically connected through the mount to two terminals of a smoke alarm. -
FIG. 12 is a side elevation cross-sectional view of another coupling, including a base “hard wired” to three electrical leads in a ceiling, and electrically connected through the mount to three terminals of a smoke alarm. -
FIG. 13 is a side elevation cross-sectional view of a coupling, including a base to which is magnetically coupled the base of a smoke alarm; a socket or other rod-attachment means is provided in the center of the cover of the smoke alarm; optionally, the socket is secured peripherally and may be internally threaded as shown in phantom outline. -
FIG. 14 is a side elevation cross-sectional view of a coupling, including a base to which is magnetically coupled the base of a smoke alarm; a finger-like protrusion is secured to the center of the cover; optionally, the finger-like protrusion is secured peripherally, as shown in phantom outline. -
FIG. 15 is a side elevation cross-sectional schematic illustration of a coupling, including a base and mount coupled with a releasable latch means. -
FIG. 16 is a side elevation cross-sectional view diagrammatically illustrating a coupling, including a base to which is interference-fitted a mount carrying a pair of lighting fixtures; an internally threaded socket is provided in the center of the mount. The component-mounting floor is substituted for the planar member of the mount inFIG. 10 . -
FIG. 17 is an exploded isometric view of a remotely attachable and separable coupling system of the invention employing a dual retention mechanism. -
FIG. 18 is an exploded section view of the system ofFIG. 17 . -
FIG. 19A is a bottom view of the base member of the system ofFIG. 17 . -
FIG. 19B is a side elevation view of a retention member for the system ofFIG. 17 . -
FIG. 19C is a schematic side elevation view of the mounting ring and circular ring contact for the system ofFIG. 17 . -
FIGS. 19D and 19E are, respectively, top plan and side elevation views of circular ring contact for the system ofFIG. 17 . -
FIG. 20 is a top view, partly broken away to show the respective clips of the mount of the system ofFIG. 17 . -
FIG. 21A is a fragmentary elevation view of the clip holder and clip slot of the mount of the system ofFIG. 17 . -
FIG. 21B is a fragmentary elevation section view of the clip holder, clip slot and clip of the mount of the system ofFIG. 17 . -
FIG. 21C is a fragmentary front view of the clip holder with a locking pin looking generally in the direction of thearrows 21C-21C ofFIG. 21B . -
FIG. 21D is an elevation view of a locking pin. -
FIG. 22 is a top plan view of another embodiment of mount. -
FIG. 23 is a section view of the mount looking generally in the direction of the arrows 23-23 ofFIG. 22 . -
FIG. 24 is a section view of the mount looking generally in the direction of the arrows 24-24 ofFIG. 22 . -
FIG. 25 is a side elevation view of the mount ofFIG. 22 . -
FIG. 26 is a top section view of the mount looking generally in the direction of the arrows 26-26 ofFIG. 25 . -
FIG. 27 is a bottom view of the mount looking up at the outside thereof with no device mounted thereon. -
FIG. 28 is a schematic partial top plan view of another embodiment of mount having a dual retention system that includes a mechanical latch. -
FIG. 29 is a schematic partial section view of embodiment of a remotely attachable and separable coupling system with a mechanical latch of the type illustrated inFIG. 28 . -
FIG. 30 is a schematic partial top plan view of another embodiment sliding latch mechanism. -
FIG. 31 is a schematic partial top plan view of still another embodiment of sliding latch mechanism with a pivot movement for reversing direction of one of the detent members of the latch mechanism. -
FIG. 32 is a schematic partial top plan view of even another embodiment of sliding latch mechanism with spring return. -
FIG. 33 is a schematic partial section view of the base member for a touch latch embodiment of the invention. -
FIG. 34 is a bottom view of the base member for a touch latch embodiment of the invention. -
FIG. 35 is a schematic section view of the mount for a touch latch embodiment of the invention. -
FIG. 36 is a top view of the mount for a touch latch embodiment of the invention. -
FIG. 37 is a side view of a remotely attachable and separable coupling system employing a dual retention mechanism in accordance with another embodiment of the present invention. -
FIG. 38A is a back isometric view of a first subassembly of the remotely attachable and separable coupling system ofFIG. 37 . -
FIG. 38B is a side view of the first subassembly ofFIG. 38A . -
FIG. 38C is a top view of the first subassembly ofFIG. 38A . -
FIG. 39A is a front isometric view of a second subassembly of the remotely attachable and separable coupling system ofFIG. 37 . -
FIG. 39B is a side view of the second subassembly ofFIG. 39A . -
FIG. 39C is a front view of the second subassembly ofFIG. 39A . -
FIG. 40 is a side view of a remotely attachable and separable coupling system of the invention employing a dual retention mechanism in accordance with another embodiment of the present invention. -
FIG. 41 is a front isometric view of a first subassembly of the remotely attachable and separable coupling system ofFIG. 40 . -
FIG. 42A is a front isometric view of a second subassembly of the remotely attachable and separable coupling system ofFIG. 40 . -
FIG. 42B is a side view of the second subassembly ofFIG. 42A . -
FIG. 43 is a side view of a catch employed in the second subassembly ofFIGS. 42A and 42B . -
FIG. 44 is a side view of a remotely attachable and separable coupling system of the invention employing a dual retention mechanism in accordance with another embodiment of the present invention. -
FIG. 45A is a side view of the first subassembly of the remotely attachable and separable coupling system ofFIG. 44 . -
FIG. 45B is a front view of the first subassembly of the remotely attachable and separable coupling system ofFIG. 44 . -
FIG. 46A is a side view of the second subassembly of the remotely attachable and separable coupling system ofFIG. 44 . -
FIG. 46B is a front view of the second subassembly of the remotely attachable and separable coupling system ofFIG. 44 . -
FIG. 37 relates to an assembly for releasably coupling a first support structure to a second support structure. The assembly includes a dual retention mechanism, wherein a first retention mechanism operates using gravity in conjunction with an interlock, and a second retention mechanism operates based on a positional relationship. Details of the assembly will be discussed in more detail with respect toFIGS. 37-46 . - In some cases in the past, a relatively heavy article would not be removably suspended with manually decouplable coupling means because of the relatively high manual force (greater than 1 lb) required to disengage the article. Such force would have to be applied while standing on a step-ladder or other elevating means which permitted a person to reach the article. The higher the force required, the greater the risk of falling off the step-ladder. In an embodiment of this invention, a relatively small force, easily applied on the rod with one hand, will angulate the centerline of the suspended subassembly relative to the first (fixed base) sufficiently to allow the suspended subassembly to be angularly disengaged, even if the magnet means, Velcro® fasteners or other coupling means exerted a force of about 10 kg (22 lb). Though articles heavier than about 1 kg (2.2 lb) are easily and safely suspended with the suspended subassembly of this invention, much heavier articles, heavier than about 10 kg (22 lb) are not suited to be suspended by a single suspended subassembly as the danger of losing control of fitting and removing the suspended subassembly on the end of a rod presents a risk of injury to a person who loses control. When such heavier objects are required to be suspended with a single assembly, that assembly may comprise plural coupling means appropriately located between the base and the mount; each of the coupling means, e.g. a magnet or Velcro® fasteners, exerting a force in the range from about 0.45 kg (1 lb) to about 4.5 kg (10 lb) force. Where objects heavier than about 1 kg (2.2 lb) are suspended with a magnet, the cost of the magnet and the ferrous plate are the major portion of the cost of the assembly; therefore it is desirable to use the magnet most efficiently, that is, utilize all its strength. It will be appreciated by those having ordinary skill in the art that weights and capacities expressed are only exemplary and can be other than those described while still embodying the invention.
- To register the couplable components, e.g. the magnet means with its ferrous metal counterpart, irrespective of which couplable component is secured to the base or the mount, or pair of magnets, the suspended subassembly is advanced upward to the secured subassembly so as to permit coupling them. The couplable components may be at least one magnet and a ferrous metal; and they may be registered with mating dish-shaped members one of which houses the magnet(s), the other housing the ferrous metal. The rod-acceptance means may be a rod-attachment means such as a socket or finger-like protrusion, rather than a through-passage in the mount, for reasons set forth herebelow. The end of the rod supports and balances the mount as it is raised to the base. The rod-attachment means may be a socket. The socket may be integrally formed with the mount, and the end of the rod may be is biased against the closed end of the socket by gravity, or may be threadedly engaged therein. After the mount is coupled to the base, the end of the rod is removed from the mount. The mount may be serviced by inserting the end of the rod into the rod-acceptance means, exerting sufficient force to decouple the mount from the base, supporting the mount on the end of the rod and lowering the mount to allow it to be removed from the end of the rod.
- The secured first subassembly or “base member” may be of a standard, circular configuration, providing a dish-shaped base (disc-shape base, or some other appropriate shape base); the suspended second subassembly or “mount” may be of any arbitrary configuration, and each differently configured mount is interchangeably couplable to the base member; for example, a configuration of the suspended subassembly may include a box-shaped mount, the mount having an overall rectangular shape and planar floor; a hook is secured to hang from the lower surface of the floor; two or more spaced-apart hooks may be provided to support a sign which is required to be hung from plural hooks; another mount may include a cup-shaped configuration and a planar, circular lower surface which may be used to mount a smoke alarm. In each case the base member may include a peripheral downward-extending wall and the mount typically provides a generally planar base, or a dish- or cup-shaped member having a generally planar floor with an outwardly flaring peripheral wall to allow the peripheral wall of the dish-shaped base member to be received when the mount is couple to the base member.
- In an embodiment the base member and mount are couplable and decouplable without manually touching either, though which subassembly holds the magnet, as long as one is fixed, is not critical. By “without manually touching” is meant that there is no contact of the subassemblies with a person's hand during installation or removal of the mount. In an embodiment the magnet coupling means is held in mating dish-shaped base and mount members so as to facilitate aligning the magnet and the ferrous metal. The peripheral walls of the subassemblies may be dimensioned such that the entire surface of the one or more magnets used is covered by the ferrous plate to make economic use of the full strength of the magnet.
- It will be recognized that some residential ceilings may be no more than 2.44 meters (8 feet) from the floor of a room but in numerous instances even residential ceilings may be 9.14 meters (10 feet) or more, and ceilings in commercial salesrooms and warehouses are even higher, typically in the range from 4.57 meters (15 ft) to 9.14 meters (30 ft). The higher the ceiling the more difficult it is to manipulate anything on the ceiling from the floor. Therefore, as is illustrated in
FIGS. 1 and 2 , first (base member) and second (mount)subassemblies - The base 20 may include a first synthetic resinous cup-shaped dish 21 (“
first dish 21” for brevity) which is secured to the ceiling 11 with suitable fastening means, for example a pair of oppositely spaced apart screws 12 inserted throughwashers 13. Themount 30 comprises a second synthetic resinous cup-shaped dish 31 (“second dish 31”) which is shown matingly coupled in male-female relationship with thefirst dish 21. Centrally located in thefirst dish 21 is a magnet 24 (seeFIG. 3 ) and a plate offerrous material 32, for example steel, is located centrally within thesecond dish 31, corresponding to themagnet 24, so that the surfaces of the magnet and steel plate will be in tight contact when the first and second dishes are mated. - It will be evident that when the coupling means is magnetic, the material from which the
second dish 31 and thefirst dish 21 are formed is non-magnetic, and, for example, may be poly(vinyl chloride), styrene or a phenol-formaldehyde resin, though aluminum would be suitable. Thesecond dish 31 is mated to thefirst dish 21 by holding the former on the end of arod 15, so that themagnet 24 is fully covered byplate 32, as shown inFIG. 2 . On the end of a long rod, thesecond dish 31 is more easily slid over the circular periphery of thefirst dish 21 than if the peripheries of each was other than circular. For example with a rectangular first dish and a correspondingly rectangular second dish, the corners of each may be accurately matched before the two can be mated; elliptical shapes are easier than rectangular but more difficult than circular. - Referring to
FIGS. 3 and 4 , it is seen that thefirst dish 21 of thebase 20 includes aplanar disc 22 peripherally ringed by an integralcylindrical wall 23. Centrally secured to the lower surface ofdisc 22 ismagnet 24, for example by ascrew 25, the head of which is in a correspondingly shaped hollow countersunk in the lower face of the magnet so that it presents a planar lower surface againstlower surface 26. The strength of themagnet 24 is chosen to correspond with the weight of the objects to be suspended, for example, in the range from 113.4 gm (0.25) lb to about 4.536 kg (10 lb). As will readily be apparent, the greater the weight to be suspended, the stronger the magnet required and the greater the force required to disengage a suspended mount which is magnetically coupled with the magnet. It will also be evident that the expense of the magnet will dictate that the assembly be designed to suspend a particular maximum load, and that the magnet's strength be optimally utilized. Such optimal use can result when the area of the magnet is fully covered by the ferrous counterpart (seeFIGS. 1, 2 & 10). - Reverting to
FIGS. 1 and 3 , to ensure that themagnet 24 is fully covered by theferrous plate 32, irrespective of where themagnet 24 is positioned on theplanar disc 22 of thefirst dish 21, the area of the latter (plate 32) may be much larger than that of the magnet, and may occupy substantially the entire area of thefloor 37 of the second subassembly. Of course such unnecessarily large area of the ferrous plate to compensate for inappropriately positioning the magnet is costly and wasteful; therefore, matching the area of themagnet 24 to an appropriate area of theplate 32 is to be ensured. - Referring to
FIGS. 5 and 6 , the second subassembly or “mount” 30 includessecond dish 31 and atubular socket 40; thesocket 40 has aclosed end 41 and downwardly extendingsidewalls 42 by which the socket is secured to the exterior periphery of thesecond dish 31. Thesocket 40 is secured so that itscavity 43 is directed substantially vertically downward and the closed end's planar base is substantially coplanarly disposed relative to the plane of the peripheral surface of thesecond dish 31. The cross-section of thecavity 43 is not critical, serving only to slidably accommodate the end ofrod 15. Since a cylindrical rod such as a broom handle is typically conveniently at hand, the cavity is cylindrical in cross-section. The closed end of thesocket 40 serves to support the mount on the end of the rod; however, if the socket is open-ended, that is, a hollow tubular section, the rod may nevertheless be angulated relative to the vertical, to remove the mount. A relatively close tolerance between rod and the walls of the socket or tube will permit the second subassembly to be lowered controllably. - A
ferrous metal disc 38 is secured to thefloor 37 of thesecond dish 31 with appropriate fastening means, for example, a pair of opposed spaced apart screws 33 the heads of which are countersunk in the planar surface of thedisc 38 and threaded into thefloor 37. Thedisc 38 is bored and threaded to receive a correspondingly threaded eye-bolt 34, which is inserted through a central aperture in thefloor 37, the eye-bolt in turn suspending a sign from a hook (not shown). When the hook is inserted into the eye of the eye-bolt an article, such as a sign, attached to the hood is suspended from the ceiling. Changing the sign is accomplished by removing and lowering thesecond dish 31 to the floor of the room, substituting the appropriate hook in the eye-bolt, inserting arod 15 into the socket and replacing thesecond dish 31 on thefirst dish 21. - The function of the
second dish 31 is to provide a mount, and also to permit thefirst dish 21 to be guided into thesecond dish 31 so as to center themagnet 24 on theferrous metal disc 38, and use the entire force exerted by the magnet. To facilitate insertingfirst dish 21 intosecond dish 31, the inside diameter ofwalls 36 of thesecond dish 31 is greater than the outside diameter of thefirst dish 21 so thewalls 23 of the latter may be readily inserted into the former (second dish 31). To align theferrous metal disc 38 and themagnet 24 more accurately, a downwardly tapered annular transition zone connecting thewalls 36 to thefloor 37 urges the periphery of the walls of thefirst dish 21 inward until, when the periphery of the walls of thefirst dish 21 abut thefloor 37, themagnet 24 is centered upon thedisc 38. By “downwardly tapered” is meant that the cross-section of thesecond dish 31 at its periphery is greater than the cross-section of the walls where they meet thefloor 37. In an example, the inside diameter of thesecond dish 31 may be in the range from about 5% to about 10% greater than the outside diameter of the periphery of thefirst dish 21 to allow angulation of thesecond dish 31 relative to thefirst dish 21, as is explained below. - The
socket 40 may have a smooth-walled interior, its diameter being slightly larger, from about 0.05% to 5%, than that of therod 15, say a broom handle, to be inserted in the socket. Since the socket is smooth-walled, a directly downward pull on the rod will only serve to remove it from the socket. Therefore, a force is applied at the distal end (from the socket) in the lateral direction. This force serves to pivot thesecond dish 31 on the base of thesocket 40, thus angulating theferrous plate 32 relative to the lateral surface of themagnet 24. Such angulation, in the range from about 1° to about 15° is sufficient to break contact with one edge (the distal end from the socket) of the magnet and progressively disengages the remaining surface of the magnet, thus requiring only a fraction, from 50% to 10% or less than the large force required to break contact with the entire surface of the magnet, at one time, substantially instantaneously, which large force would be required if themount 30 was to be pulled directly downward. - As will now readily be evident, if desired, a large directly downward force could be applied, if desired, by threading the interior wall of the
socket cavity 43 and threadedly engaging the end of a rod having a correspondingly threaded end (seeFIG. 16 ), if there is an over-riding reason to do so, since it is apparent that threading the rod into the socket requires additional effort which in most instances is not justified. - The first and
second dishes socket 40 has a smooth cavity or is threaded, thesocket 40 may be integrally molded with thesecond dish 31. Moreover, where the configuration of the mount permits, the socket may be formed directly in the periphery of the second dish; or, a through-passage in the periphery of the second dish may afford sufficient purchase for the rod, as for example when the second dish supports a larger structure (seeFIG. 8 ). - It will be appreciated that the height of the
assembly 10, that is, the distance to which the assembly projects downward from the ceiling, may be kept to a minimum to keep the assembly as unobtrusive as possible. Therefore, though the overall dimensions of the assembly are not narrowly critical, for practical applications, the height of thefirst dish 21 is in the range from about 1 cm to about 4 cm, the height of the correspondingsecond dish 31 being greater by about the thickness of thefloor 37. For most applications, the cross-section ofwall 36 andfloor 37 is in the range from about 1 mm to about 3 mm, as is the cross-sectional thickness of thefirst dish 21, the thickness in each case being sufficient to provide adequate rigidity and strength to the assembly, and related to the physical characteristics of the synthetic resin used. - Referring to
FIG. 7 there is schematically illustrated anassembly 60 comprising abase 20, amount 30, and aconventional smoke alarm 50 secured to themount 30. Such a smoke alarm typically has abase plate 51 with a bayonet mount to secure it to a receiving base and the receiving base is secured to the ceiling. To suspend such asmoke alarm 50 from the ceiling, usingassembly 10, the bayonet mount is dispensed with, and the smoke alarm is directly secured to thelower surface 37 of dish-shapedportion 31 of the mount. As before, mount 30 includes a rod-attachment means, shown as a socket, and a slight force exerted on the end of the rod, in a generally lateral direction, serves to disengage thesteel disc 32 from themagnet 24. Thesmoke alarm 50 may then be conveniently serviced on a table in the room and replaced on thebase 21 by reinserting the handle of the broom into thesocket 40 and mating thesecond dish 31 to thefirst dish 21. - Referring to
FIG. 8 there is shown anassembly 80 in which the suspendedsubassembly 70 is the “mount” which includes a cup-shapedmember 47 and asuspension member 71 attached to the lower surface of cup-shapedmember 47. Thesuspension member 71 presents a larger lower surface than that presented by the cup-shapedmember 71, the larger surface making it possible to provide plural spaced-apart eye-bolts 34 from which to hang an article (not shown). The shape of the suspension member is arbitrary, the one illustrated being provided to clear an adjacent obstruction such as aconduit 75 carried on the ceiling. As shown, thesuspension member 71 is a generallyrectangular dish 72 having an upwardly steppedfloor 73 andvertical walls 74 which abut the ceiling to hide theconduit 75. Thecentral portion 76 of the stepped floor is planar and secured to the lower surface of thesecond dish 31 with fastening means such as spaced-apart screws 77. A throughpassage 78 in thesuspension member 71 near its periphery is large enough to have arod 15 inserted in it. As before, a lateral force on the distal end of the rod angulates thesteel disc 32 against themagnet 24 and disengages themount 70. - Referring to
FIG. 9 there is shown anassembly 60 including a base 51 coupled with amount 61 with a detent means, one member of which is integral with the mount and the other member of which is integral with the base. Themount 61 includes a dish-shapedmember 63 having an outwardly and upwardly flaring peripheral wall 64 aroundfloor 65. Thebase 51 has aplanar floor 52 attached to ceiling 11 withscrews 12 and aperipheral wall 53 which extends downward, flares outwardly fromfloor 52 and terminates in arim 54, this rim being the other member of the detent means. Theend 54 is engaged in a circumferential groove 62 at the base of the outwardly flaring wall 64, the groove 62 serving as a detent to securemount 61 tobase 51. The groove 62 lies at the apex of the angle formed by the wall 64 andfloor 65.Smoke alarm 50 is mounted to the lower surface of thefloor 65 with appropriate fastening means such as screws (not shown). - At the periphery of dish-shaped
member 63 is provided socket 66 having abore 67 adapted to slidably accommodate the end ofrod 15, as described above. To couplemount 61 tobase 51, with thesmoke alarm 50 secured to themount 61, it is supported on the end ofrod 15 andwall 53 of thebase 51 is guided into the wall 64 ofmount 61 until theend 54 snaps into the groove 62. Therod 15 is then removed. - Referring to
FIG. 10 , there is shown anassembly 90 for suspending plural relatively heavy articles from amount 95 coupled tobase 91 which is secured as before to ceiling 11 withscrews 12. As before, themount 95 includes asocket 96 having abore 97 in which arod 15 is inserted to couple and decouple themount 95 to thebase 91. The base is provided with afloor 92 and a downwardly extendingperipheral wall 93.Plural magnets 94 are secured to the lower surface offloor 92 with appropriate fastening means, e.g., countersunk screws (not shown), the lower planar surfaces of the magnets extending to about the horizontal plane in which the periphery ofwall 93 lies. -
Mount 95 is a planar member having aplanar floor 98 oppositely disposed from the surfaces ofmagnets 94. A singlelarge steel plate 99, althoughplural steel plates 99 may be used, is secured to thefloor 98 and located directly opposite from and in registry withmagnets 94 when themount 95 is coupled tobase 91. For increased force to be exerted by the magnets, a central elongated magnet may be used with one or more ring-magnets surrounding the central magnet; correspondingly, an elongated steel plate and one or more annular rings of steel are positioned to be in registry with the magnets when the mount and base are coupled. - Referring to
FIG. 11 , there is illustrated an assembly 100 comprising a suspended subassembly shown as a dish-shapedmount 101 coupled with a secured subassembly shown as a dish-shapedbase 102 secured to ceiling 11. The base has aplanar floor 104 and a downwardly extendingwall 106 extending peripherally from thefloor 104. The lower surface offloor 104 is provided with a downwardly projectingcentral boss 120 which has a recessed central portion 122 and acircumferential step 124. Electrical leads A and G in the ceiling are connected toterminals floor 104.Terminal 128 is centrally located and in electrical connection through recessed central portion 122, and with aconductive spring 132.Terminal 126, laterally spaced apart fromterminal 128 is in electrical connection withterminal 126′ on thecircumferential step 124 ofboss 120. - The
mount 101 hasupstanding walls 103 extending from the periphery of afloor 105 provided with a an upwardly projectingcentral boss 107 which has a recessedcentral portion 123 defined by acircumferential wall 125 to the upperperipheral surface 127 of which is secured an annularconductive strip 129. Centrally located within recessedcentral portion 123 in the upper surface of thefloor 105 ofmount 101 is a terminal 133 which is in electrical connection withterminal 133′.Terminal 133′ is centrally located within recessed central portion 131 in the lower surface of thefloor 105. - When
mount 101 is coupled tobase 102, terminal 126′ is in contact with annularconductive strip 129 which is in electrical connection withterminal 129′ in recessed central portion 131 in the lower surface of thefloor 105; andspring terminal 132 is in contact withterminal 133 which is in electrical connection withterminal 133′ in recessed central portion 131. When coupledspring terminal 132 is in contact withterminal 133 and terminal 126′ is in contact with annularconductive strip 129. Electrical leads G′ and A′ extend fromterminals 129′ and 133′ respectively for connection with appropriate terminals of asmoke alarm 50 mounted to the lower surface offloor 105. -
Mount 101 includes asocket 134 having abore 135, the socket peripherally molded withfloor 105. Thefloor 105 has an upstandingannular wall 136 surrounding thecentral boss 107, and anannular steel ring 137 is secured to the peripheral surface ofannular wall 136. - On the inner surface of
floor 104 ofbase 102 is secured aring magnet 138, positioned so as to be registrable with theannular steel ring 137 when the mount is coupled to the base. To facilitate coupling the mount to he base, the inner surface of theperipheral wall 103 is tapered at 138 so as to guide the peripheral upper surface ofwall 106 until it is in close proximity to the upper surface offloor 105, theannular steel ring 137 is in contact with thering magnet 138, and the terminals of the smoke alarm are in electrical contact with the leads A and G in the ceiling. As is well known, though a smoke alarm may be “hard wired” to the ceiling, the smoke alarm is provided with a battery which is to operate the device should there be a power failure substantially simultaneously with a fire; the battery in such a smoke alarm must be replaced when the charge runs below a safe level, and removing and replacing the battery is made easy with the assembly 100. Smoke alarms and other devices also have to be removed for various purposes, such as cleaning, testing, repair, etc. - Referring to
FIG. 12 there is illustrated an assembly 200 analogous to assembly 100 inFIG. 11 except, that provision is made to wire a smoke alarm having three terminals A, B and G. Assembly 200 comprises a suspended subassembly, shown as a dish-shapedmount 201 coupled with a secured subassembly shown as a dish-shapedbase 202 secured to ceiling 11. The base has aplanar floor 204 and a downwardly extendingwall 206 extending peripherally from thefloor 204. The lower surface offloor 204 is provided with a downwardly projecting central boss 220 which has a recessed central portion 222 and a circumferential step 224. Electrical leads A, B and G in the ceiling are connected toterminals floor 204.Terminal 128 is centrally located in recessed central portion 222 and in electrical connection with aconductive spring 132.Terminals terminal 128 and from each other, and are in electrical connection withterminal 121′ and 126′ respectively on the circumferential step 224 of boss 220. - The
mount 201 hasupstanding walls 203 extending from the periphery of afloor 205 provided with a an upwardly projectingcentral boss 207 which has a recessed central portion 223 defined by a circumferential wall 225 to the upperperipheral surface 227 of which is secured annularconductive strips terminals 121′ and 126′ respectively. Centrally located within recessed central portion 223 in theboss 207 on the upper surface of thefloor 205 ofmount 201 is a terminal 133 which is in electrical connection withterminal 133′.Terminal 133′ is centrally located within recessedcentral portion 231 in the lower surface of thefloor 205. - When
mount 201 is coupled tobase 202, terminal 126′ is in contact with annularconductive strip 129 which is in electrical connection withterminal 129′ in recessed central portion 232 in the lower surface of thefloor 205; andspring terminal 132 is in contact withterminal 133 which is in electrical connection withterminal 133′ in recessedcentral portion 231. Electrical leads G′, A′ and B′ extend fromterminals 129′, 133′ and 221′ respectively for connection with appropriate terminals of asmoke alarm 50 mounted to the lower surface offloor 205. -
Mount 201 includes asocket 234 having abore 235, the socket peripherally molded withfloor 205. Thefloor 205 has an upstandingannular wall 236 surrounding thecentral boss 207, and anannular steel ring 137 is secured to the peripheral surface ofannular wall 236. - On the inner surface of
floor 204 ofbase 202 is secured aring magnet 138, positioned so as to be registrable with theannular steel ring 137 when the mount is coupled to the base. To facilitate coupling the mount to he base, the inner surface of theperipheral wall 203 is tapered at 238 so that when the peripheral upper surface ofwall 206 is in close proximity to the upper surface offloor 205, theannular steel ring 137 is in contact with thering magnet 138 and the terminals of the smoke alarm are in electrical contact with the leads A, B and G in the ceiling. - Referring to
FIG. 13 , there is schematically illustrated an assembly indicated generally byreference numeral 300, comprising asecured subassembly 302 and a suspendedsubassembly 301, by itself, which is the article to be suspended. Thesecured subassembly 302 includes abase 304 and amagnet 324 secured there-within with fastening means (not shown) to ceiling 11 in a manner analogous to that illustrated and described inFIG. 1 . Illustrated inFIG. 13 is asmoke alarm 303 having acover 307 removably secured to a component-mountingfloor 305, for mounting electrical components. The component-mountingfloor 305 is analogous to, and may be substituted for, theplanar floor 98 of theplanar member 95 inFIG. 10 . The smoke alarm has no other base, as is common for smoke alarms in which the component-mounting floor is removably mounted to a base, typically with a bayonet mount. Among the components is abattery 308 which is to be periodically replaced. Thefloor 305 is recessed in the center to have asteel plate 309 fixedly held therein. - The
cover 307 is provided with asocket 340, in an embodiment, it is near the center of the cover and integrally molded therewith, the socket having a bottom 341 inwardly spaced from the cover'slower surface 311 for a distance sufficient to provide secure purchase for the end of arod 15 which is slidably snugly inserted inbore 342 when thesmoke alarm 303 is to be removed from, or replaced onto thebase 304. If desired, thebore 342 may be internally threaded withthreads 353 to receive the end of a complementarily threaded rod (not shown). If desired the cover may be provided with a through-aperture defined by the diameter of thebore 342, into which through-aperture therod 15 may be inserted and stopped bysteel plate 309. To remove thesmoke alarm 303 however, a force exerted on therod 15 to angulate it and dislodge thesteel plate 309 from contact withmagnet 324 causes pressure to be exerted on the periphery of the through-aperture. Since thecover 307 is typically made of relatively fragile plastic, a through-aperture is less preferred tosocket 340. - In view of the relatively fragile nature of a
typical cover 307, an alternative to providing asocket 340 within the cover, is to provide asocket 350, shown in phantom outline, at the periphery of component-mountingfloor 305, thesocket 350 molded integrally withfloor 305. Thesocket 350 has a bottom 351 extending laterally from the mountingfloor 305, and the socket'sbore 352 is adapted to receive the end ofrod 15. If desired, thebore 352 may be internally threaded withthreads 353 to receive the end of a complementarily threaded rod (not shown). - Whether the socket is provided within the
cover 307 or secured to the mountingfloor 305, it serves to transmit the force exerted by the end ofrod 15 to dislodge thesmoke alarm 303 frombase 304. After the smoke alarm is lowered, thecover 307 is manually removed from the component-mountingfloor 305 and thebattery 308 removed and replaced. - Though
base 304 may be a plate, it may include aperipheral wall 310, the peripherallower surface 314 of which extends downward to near, or in contact with theinner surface 312 of the mountingfloor 305. The “inner surface” refers to the surface of thefloor 305 which is on the other side from that on which the components are mounted. Theperipheral surface 314 serves to stabilize theferrous metal plate 309 and register it accurately against themagnet 324. Moreover, when therod 15 is angulated, thesurface 314 provides a fulcrum to facilitate thesteel plate 309 breaking contact with themagnet 324. - Referring to
FIG. 14 there is schematically illustrated anassembly 400 comprisingsecured subassembly 302 secured to ceiling 11 and suspendedsubassembly 401 including asmoke alarm 403, analogous to theassembly 300 inFIG. 13 , except that instead ofsocket 340,smoke alarm 403 has acover 407 from which projects a finger-like protrusion 345. The location of the finger-like protrusion 345, like the location of thesocket 340, is not narrowly critical, but because a person standing on the floor of a room may not visually recognize the direction in which the advantage of maximum leverage lies, the finger-like protrusion 345 is placed near the center of thecover 407. If desired, the finger-like protrusion 345 may be threaded with threads 346 to be received in the complementarily threaded bore in the end of a rod (not shown). - For the same reason given above, namely the relative fragility of
cover 407, theprotrusion 345 may be replaced with aprotrusion 355, shown in phantom outline, at the periphery of component-mountingfloor 305, molded integrally therewith; as before, if desired, the protrusion may be threaded to be received in the complementarily threaded bore in the end of a rod (not shown). - The detent means illustrated in
FIG. 9 and the magnet and steel plate combination illustrated in the other Figures may be replaced with a latching means 510 in anassembly 500 illustrated inFIG. 15 . Theassembly 500 comprises a secured subassembly orbase member 501 and a suspended subassembly or mount 502; the latter is latched to thebase member 501 which has aplanar floor 503 secured to ceiling 11, and aperipheral wall 504. Pending from thefloor 503 are laterally spaced apart catches 505, which may be integrally molded with thefloor 503. In an example each catch may terminate in a V-shapedportion 506. The V-shapedportion 506 may have a generally triangular cross section having aninclined surface 507 and a substantiallylateral surface 508. Other shapes and styles of latch, catch, etc. may be used. -
Mount 502 has a generallyplanar member 511 adapted to receive alatching arm 512 which is translatable to and fro relative tocatches 505, so as to engage and disengage them. In the exemplary embodiment ofFIG. 15 , latchingarm 512 includesupstanding latches 513, the bases of which are fixed to latchingarm 512 and each oflatches 513 may terminate in a V-shapedportion 514 having a generally triangular cross section, inclined so as to provide a downwardly extendingstub 515 with a substantiallylateral surface 516 which rests uponlateral surface 508 when engaged. - One
end 518 of latchingarm 512 projects through the periphery ofbase 511 into thebore 522 ofsocket 520 which may be integrally molded withplanar member 511, thebottom 523 of the socket extending from the periphery ofplanar member 511. Theend 518 of thelatching arm 512 is attached to one end of a spring-biasedlever arm 525 biased away fromwall 524 ofsocket 520 by aspring 526. Thelever arm 525 is located so that the end of a rod 15 (not shown) slidably inserted inbore 522 will compressspring 526 and urge latchingarm 512 away from the longitudinal center-line of the rod. The “throw” of thelatches 513 is sufficient to disengagestubs 515 from thecatches 508 thus releasingmount 502 from thebase member 501. - To facilitate replacing
mount 502 which is supported on the end of a rod, on thebase member 501, theplanar member 511 is provided with an outwardly inclined wall 517 remote from and oppositely located fromsocket 520. Further the outer surface ofwall 524, near thebottom 523 of thesocket 520, is provided with an outwardlyinclined surface 527 to guide the lower peripheral surface ofwall 504 into contact withinner surface 528 ofplanar member 511, as themount 502 is urged upwards along mating inclinedsurfaces 507 of each catch and those ofstubs 515. As the rod is then withdrawn, pressure against thelever arm 525 is released and thespring 526 causes thestubs 515 to engage theterminal portions 506 of the catches. - If desired, to replace the
mount 502 on thebase member 501, the lower end ofsocket 520 may be inserted in a socket at the end of a rod so thatspring 526 is not compressed. When themount 502 is then urged up against thebase member 501, thespring 526 is compressed as the inclined surfaces of thestubs 515 are urged along the correspondinglyinclined surfaces 507 of the V-shapedterminal portions 506 of the catches until the ends of the stubs clear theportions 506; thespring 526 is then released and secures the stubs in position on the lateral surfaces 508 of the catches. - Referring to
FIG. 16 there is schematically illustrated anassembly 600 comprising a secured subassembly orbase member 601 secured to ceiling 11, and a suspended subassembly or mount 602 from which a pair oflighting fixtures - As illustrated
base member 601 includes a disc-shapedmember 605 having aperipheral wall 606, theouter surface 607 of which is inwardly inclined. The lower surface of disc-shapedmember 605 is provided with a downwardly projectingcentral boss 608 which has a recessedcentral portion 609 and acircumferential step 610. Electrical leads A (hot), B (neutral) and G (ground) in the ceiling are connected toterminals member 601. Three leads are shown though only first and second current-carrying leads may be necessary. Terminal 611 (first terminal) is centrally located and in electrical connection with aconductive spring 615 in recessedcentral portion 614. Terminal 612 (second terminal), laterally spaced apart fromterminal 611, is in electrical connection withterminal 612′ on thecircumferential step 610 ofboss 608.Terminal 613, laterally spaced apart from bothterminals terminal 613′ on the peripherallower surface 616 ofwall 606. - The
mount 602 includes a mountingmember 625 which has a generallyplanar floor 628 and an upstandingperipheral wall 621; thewall 621 is outwardly directed and inclined from the vertical center-line of mountingmember 625 to whichfixtures wall 621 is complementarily inclined to be tightly fitted overouter surface 607 ofwall 606 until theperipheral surface 616 is biased against aconductive ring 627 secured near the periphery of theinner surface 628 ofcover 625. Theconductive ring 627, in turn, is in electrical connection with leads to the bases oflighting fixture - The upper (or inner) surface of
planar floor 628 has a central boss 630 projecting upward and having acentral recess 631 within which is centrally located a terminal 632 (third terminal) adapted to contact central terminal 615 (first terminal) when the subassemblies are coupled. The upper peripheral surface of the circumferential shoulder of the boss 630 has a conductive ring 633 (fourth terminal) fixedly secured therein so as to be in contact withterminal 612′ (and in electrical connection with second terminal 612) when the subassemblies are coupled. Thusterminals neutral leads 632′ and 633′ respectively which are in turn connected to the appropriate leads for the lighting fixtures. - Also centrally located in
mount 602, and, if desired, which may be axially aligned with central boss 630, is asocket 640 having a bore 641. Thewalls 642 of thesocket 640 are internally threaded with threads 643 so as to threadedly receive threadedend 646 of rod 645. - It will now be evident that the method of releasably coupling first and second subassemblies of an assembly to be mounted on a ceiling, comprises, securing one of the subassemblies, the first or secured subassembly, to the ceiling, the secured subassembly including a first portion of a coupling means; supporting the other of the subassemblies, the second or suspended subassembly, on the end of an elongated rod, the suspended subassembly including a second portion of the coupling means and a rod-acceptance means; registering the suspended subassembly to the secured subassembly to engage the coupling means; and, removing the rod.
- To decouple the suspended subassembly from the secured subassembly, the method comprises, attaching one end of a rod a the rod-attachment means secured to the suspended subassembly; exerting a force on the rod sufficient to decouple the suspended subassembly from the secured subassembly; supporting the decoupled suspended subassembly on the end of the rod, and lowering the suspended subassembly.
- The method of releasably magnetically coupling subassemblies of an assembly comprising a base member and a mount comprises, first securing the base member to a ceiling of a room so as to provide a secured subassembly; interposing a magnet and a ferrous plate between the base member and the mount while supporting the mount on the end of a rod, the mount including either the magnet or the ferrous plate, and a rod-attachment means; registering the ferrous plate to the magnet to engage them; and, removing the rod.
- The method also may comprise, securing a dish-shaped base to the ceiling, the base including a first portion of a magnet coupling means fixedly attached therein; supporting a dish-shaped mount on the end of a rod, the second subassembly including a second portion of the coupling means and a rod-attachment means; releasably magnetically coupling the mount to the base; and, removing the rod.
- The mount may be cup-shaped and may have a rigid floor from which an article is to be suspended from the ceiling; and the base also may be dish-shaped having a planar floor to be secured to the ceiling, and walls directed vertically downward so as to be matingly received in the mount in male-female relationship. A magnet in the base is secured to its floor, remote from the ceiling for maximum effect. The dish-shaped mount also has generally upright walls and a ferrous plate fixedly secured to its floor; and, a rod-attachment means peripherally disposed on the mount.
- In an embodiment the dish-shaped base having a magnet mounted therein is secured to the ceiling; the mount is a smoke detector and alarm assembly having a base and removable cover; on one side of the base is mounted smoke-sensing and alarm-giving means; on the other side of the base is mounted a ferrous plate; and the rod-attachment means is secured to the mount, either peripherally on the base of the smoke alarm, or on the cover; and the mount is matingly coupled with the base. Thus a person standing on the floor of a room can insert the rod in the rod-attachment means, and by manually applying sufficient lateral force on the rod at a location remote from the rod-attachment means, can angularly displace the rod relative to the vertical thus decoupling the mount from the base.
- Having thus provided a general discussion, described the overall combination of subassemblies in detail and illustrated the invention with specific examples of the best mode of carrying it out, it will be evident that the invention may be incorporated in numerous applications only some of which are described. The ability to attach and remove an article to the ceiling using a rod to decouple a magnetic coupling provides an effective solution to an age-old problem. It is therefore to be understood that no undue restrictions are to be imposed by reason of the specific embodiments illustrated and discussed, and particularly that the invention is not restricted to a slavish adherence to the details set forth herein.
- Several additional embodiments of a remotely attachable and separable coupling system according to the present invention are illustrated in
FIGS. 17-36 . In these embodiments the retention mechanism that retains the mount and base member together would be hidden from normal view when the system is assembled. Thus, the complete system has an aesthetically pleasing structure, while maintaining the basic functionality of the previously described embodiments. - Referring briefly to
FIGS. 17-21 , a remotely attachable andseparable coupling system 700 includes both the mentioned “hidden” feature and a dual retention mechanism. Thesystem 700 includes abase member 701, amount 702, and an installation andremoval tool 703. Thebase member 701 is intended to be secured to a fixed structure or to some other device, and themount 702 mates to thebase member 701. Removal and installation of themount 702 is accomplished through the use of the installation andremoval tool 703. The installation andremoval tool 703 may be used for remote installations of thesystem 700, allowing the user to remain safely on ground level while installing or removing themount 702 relative to the remotely located or otherwise difficult to reachbase member 701. Adevice 704 may be coupled to themount 702; exemplary devices may be a smoke detector or other detector, a light fixture (or part thereof), a sign, a signaling device, a viewing device such as a camera, a display, etc. Various techniques, e.g. screws, clips, adhesive, etc., may be used to couple thedevice 704 to themount 702. Thedevice 704 may be a part of and/or be integral with themount 702. The components of this embodiment of thesystem 700 will now be described in more detail. - The
dual retention mechanism 710 for holding together or coupling thebase member 701 and mount 702 includes a magnetic coupling system ordevice 711 and a selectively operablemechanical retainer 712. If desired, theretention mechanism 710 may include more than two coupling or retainer systems to hold the base member and mount together. Also, it will be appreciated that features of theretention mechanism 710 may be used alone, with other parts that are illustrated and described herein and/or with still other systems, devices or the like. - The
magnetic coupling system 711 includes at least one (or more)magnet 713 and anotherpart 714 to which the magnet may hold with a magnetic retention force. Suchother part 714 may be a ferrous plate, as was described above, another metal or other material to which a magnet may tend to hold, or even another magnet. In the embodiment illustrated inFIGS. 17-21 threemagnets 713 a, b, c are shown distributed about themount 702. Each magnet may couple magnetically to theferrous plate 714 or the like. In the embodiment illustrated inFIGS. 22-27 four magnets, 713 a-713 d are shown. - The selectively operable
mechanical retainer 712 provides a secure mechanical coupling between thebase member 701 and mount 702 when coupled together. Such mechanical coupling ordinarily would retain thebase member 701 and mount 702 coupled together in case themagnetic coupling system 711 were to release unexpectedly or otherwise. The selectively operablemechanical retainer 712 includes amovable grabber member 715 and aretention member 716. Thegrabber member 715 may be operated by the installation andremoval tool 703. - The installation and
removal tool 703 is used to couple and/or to decouple themount 702 with respect to thebase member 701. The tool includesdecoupling arms 717 that cause thegrabber member 715 to retract from a retaining or locking relation with theretention member 716 as the decoupling arms are inserted into themount 702. Thetool 703 has a base 718 a with asocket 718 b that accepts an elongated member, such as apole 720. The socket and pole may be threaded at 719 a to secure the base and pole together in a threaded connection coupling, and aset screw 719 b may be used to lock the pole to the base, e.g. preventing unscrewing from the threaded connection. The pole may increase the reach of the tool to permit access to normally out of reach locations for coupling and/or decoupling themount 702 with respect to thebase member 701 of thesystem 700. - In
FIGS. 17-21 particularly several views of thebase member 701 are shown. Thebase member 701 forms the inner half of thesystem 700 of the invention and is secured to a structure 721 (FIG. 18 ), such as a wall, a ceiling or a pole. In many uses of the invention thestructure 721 may be relatively fixed, e.g. a wall, or movable, e.g. a pole. Thebase member 701 includes several subcomponents, one of which is thebase plate 714. Thebase plate 714 is the primary instrument for attaching thebase member 701 to a fixed object and provides strength and rigidity to thebase member 701. Fasteners, such asscrews 722, are used to secure the base plate to thestructure 721. Depending on the mounting structure, other components may be required. For example, if thebase member 701 were to be secured to a pole, a U-shape bracket may be employed. Thebase plate 714 is made from a rigid material, such as steel, but it may be made out of any suitable material that provides the strength and rigidity to support themount 702 and anydevice 704 attached to the mount. In an embodiment, thebase plate 714 is of a ferrous or other material to whichmagnets 713 may be held by magnetic force. If thebase plate 714 were of non-magnetic material, magnetic materials may be attached to thebase plate 714 to provide a coupling mechanism for themagnets 713 of themagnetic coupling system 711. An example of an alternative coupling system to couple the base member and mount may use one or more Velcro® fasteners. Themagnetic coupling system 711 will be described in more detail below. Thebase plate 714 also is used to attach the remaining subcomponents of thebase member 701. These subcomponents include theretention member 716, an electricallyconductive ring 723 a, a fixedelectric terminal 724 a, and anelectrical insulation ring 725. - It will be appreciated that the
system 700 of the invention has adual retention mechanism 710 that includes two different coupling systems to secure themount 702 to thebase member 701. The first, the magnetic coupling system ordevice 711, was briefly described above. The second coupling system is themechanical coupling system 712, also referred to above as the selectively operable mechanical retainer, which is distributed between thebase member 701 and themount 702. Thebase member 701 coupling component includes theretention member 716. Theretention member 716 is attached to thebase plate 714 and may be secured by fasteners, such as a nut and bolt or a screw, or it may be bonded to thebase plate 714. Theretention member 716 can be constructed in several different forms. For example, theretention member 716 may be rectangular in shape, or it may be a set of rails mounted on each side of thebase plate 714, or it may be a circular ring. A circular ring has an advantage over other designs in that no matter what the orientation of themount 702 is relative to thebase member 701, theretention member 716 will always be aligned with its respective member in themount 702. A rectangular design or rails may only mate correctly in two, four or other specified orientations. Theretention member 716 has a groove, recess, chase, orother geometry 716 a along its outer edge to accept thegrabber member 715, such as a clip or similar device, from themount 702, such that after themount 702 and thebase member 701 are mated together, the clip fits inside the groove or other geometry of theretention member 716 and prevents the two units from separating. Separation requires that theclip 715 be mechanically moved from a position in which it cooperates with theretention member 716 to hold the base member and mount together to a position releasing the mount from the base member. Theretention member 716 may be made of plastic or any other suitable material. -
Electrical connections 726 may be provided between thebase member 701 andmount 702. For example electrical connections on thebase member 701 may provide electrical power from thebase member 701 to themount 702. This electrical power may be used to power a device,e.g. device 704, which is attached to or is part of themount 702. For example, a lightfixture type device 704 may be the recipient of the power, in which case the power will be 100, 115, 220, 240 VAC or some other suitable line voltage or other voltage. The electrical connections also may be used as a signal connection, in which case it will transmit data to and from a device attached to themount 702 relative to some remote location. For example, thedevice 704 attached to themount 702 may be a smoke detector and the signal connection may be to a remote computer, the computer having the responsibility of monitoring the status of one or more devices within a building. If the smoke detector detects a problem (e.g. low battery charge, high temperature, or smoke), the smoke detector will transmit the data over the signal connection to the central computer and the computer may act accordingly. The electrical connections also may be used to monitor the status of thesystem 700 and/or thedevice 704. For example, instead of sending a digital transmission to a central computer, the signal may be a simple contact closure to an alarm panel, or some other indication device. The electrical connections or electrical coupling apparatus between thebase member 701 and themount 702 can take on various forms, several examples being multiple fixed terminals or fixed conductive rails, each spanning a section of thebase member 701 and mount 702 respectively. Such electrical coupling apparatus may require that themount 702 and thebase member 701 be aligned in a specific orientation relative to each other in order to make the proper connections. - Another approach for the
electrical connections 726 uses electrically conductivecircular rings 723 a/723 b and centrally located fixedelectrical terminals 724 a/724 b, respectively, associated with thebase member 701 andmount 702. The conductive circular rings 723 (refers to both 723 a, 723 b) and fixed terminals 724 (refers to both 724 a, 724 b) provide a quick and safe mechanism for connecting and disconnecting the electrical signals and/or power between thebase member 701 and themount 702. Furthermore, such electrical connection arrangement is not dependent on the orientation of thebase member 701 relative to themount 702. The conductive rings 723 may be rigid or flexible (or one may be rigid and the other flexible). Using at least one flexible conductive ring 723 improves the contact to the opposing electrical connection part, e.g. another electrically conductive ring, in the opposingbase member 701 or mount 702 as the two are mated together. Aring 725 separates the conductive ring 723 from the fixed terminal 724. Thering 725 may be of electrically insulating material or other material. It may be electrically conductive if electromagnetic shielding or impedance matching characteristics are desired. The ring itself also could be replaced by an air gap that provides suitable electrical insulation characteristics. Thering 725 may include asupport portion 725 s that supports the electricallyconductive ring 723 a. While only twoelectrical connections 726 between thebase member 701 and mount 702 are shown in the drawings, the invention is not limited to two connections and there may be fewer or more than two electrical connections between thebase member 701 and themount 702. For example, multiple electrical connections may have multiple conductive rings 723, each conductive ring having a slightly larger diameter than the previous (radially inward) conductive ring, each conductive ring representing a separate electrical connection to the opposite base member or mount, and each conductive ring being separated from adjacent electrically conductive rings by aninsulation ring 725. - In FIGS. 19A-D the
base member 701,retention member 716, circular electricallyconductive ring 723 a, fixed terminal 724 a,ring 725 andsupport portion 725 s of thering 725 are shown. Wires, bus connections, etc., may provide electrical connections from some location to theconductive ring 723 a, fixed terminal 724 a and/or other electrical members of thebase member 701. - Referring to
FIGS. 17, 20 , and 21 themount 702 is shown. Themount 702 mates to thebase member 701 and forms the outer shell of thesystem 700 of the invention. As is the case with thebase member 701, themount 702 also includes several subcomponents. One subcomponent is acover 730. The cover may be made of a rigid plastic or similar material. The cover could be metal and, if necessary, have suitable electrical insulation to avoid short circuits inelectrical connections 726. Theface 731 of the cover is flat to provide a mounting platform for adevice 704, such as a light fixture or a smoke detector. Theface 731 may be some other appropriate shape to facilitate attaching to adevice 704 or for another purpose. Such devices may be electrically powered or battery powered, depending on their intended purpose. If necessary, electrical connections may be provided from the electricallyconductive ring 723 a, fixed terminal 724 a and/or any other terminals in themount 701 to corresponding terminals of thedevice 704. Also, as was mentioned above, thedevice 704 may be integral with or substantially integral with themount 702. - The
cover 730 has internal guide rings 732, which may be circular or other appropriate shape, to facilitate mating themount 702 to thebase member 701. The guide rings 732 may be angled slightly to ease installation of themount 702. Theouter wall 733 of themount 702 helps to minimize dirt and dust entry in the area between themount 702 and thebase member 701. Theouter wall 733 also increases the strength of the overall structure and improves the appearance of thesystem 700. Magnet mounts orstandoffs 734 provide an elevated mounting surface for themagnets 713, such that the magnets are approximately flush with the top surface of theouter wall 733 and can mate with and secure to theplate 714. Thestandoffs 734 may be of plastic to avoid interfering with the operation of themagnets 713, or may be of some other material. Themagnets 713 and associated components will be discussed in more detail below. Similarly, theconductive ring standoff 736 provides an elevated mounting surface for aconductive ring 723 b such that theconductive ring 723 b also is approximately flush with the top surface of theouter wall 733. - The
electrical connections 726 within themount 702 are similar to the electrical connections within thebase member 701. These electrical connections may be for power, such as 115 VAC for a light fixture, for a signal connection to digitally communicate to a remote device, for a simple status indication, such as a contact closure indicating whether the device mounted on the cover is operational, etc. The coupling apparatus for the electrical connections are similar to those of thebase member 701. This type of electrical connection provides a quick and safe way to connect and disconnect the electrical signals without the requirement of physically removing a connection (e.g. disconnecting a wire from a terminal). - The first of the two coupling systems that holds the
mount 702 to thebase member 701 is themagnetic coupling system 711. Themagnets 713 thereof provide force to hold themount 702 to thebase member 701 during installation and removal of themount 702. There are three magnets mounted in thecover 730, as is shown inFIGS. 17, 18 , and 20, to provide holding force sufficient to keep themount 702 and any attached orintegral device 704 secured to thebase member 701. More or fewer magnets may be used to achieve application specific results (e.g. to increase the holding force by increasing the number of magnets, to distribute the places where magnetic force is used, to allow use of fewer or more magnets of larger or smaller magnetic strength, etc.). Themagnets 713 may be bonded by adhesive or other means to themagnet stand offs 734 or they may be secured thereto using a fastener, such as a screw. A purpose of themagnetic coupling system 711 is to hold themount 702 to thebase member 701 during installation and removal of the mount. During this period themechanical coupling system 712 is not active, since during installation and removal of themount 702 themechanical coupling system 712 would be selectively disengaged. Themechanical coupling system 712 is discussed in more detail below. Themagnets 713 also will hold themount 702 to thebase member 701 in the event that the mechanical coupling system were unintentionally released. In an alternate embodiment of the present invention, themagnetic coupling system 711 may be replaced by another retention mechanism, such as Velcro® fasteners or a similar device. Such retention mechanisms can operate by placing parts together usually without the need to move parts, e.g. as the movement in themechanical coupling system 712. - In addition to the
magnetic coupling system 711, the invention also includes themechanical coupling system 712. Themagnetic coupling system 711 and themechanical coupling system 712 operate in tandem and ensure that if one coupling system fails, the other coupling system will maintain themount 702 attached to thebase member 701. Themechanical coupling system 712 may take on several forms, such as a retractable clip systems shown inFIGS. 17-21 , and in several other drawing figures, or a touch latch (FIGS. 33-36 ), or a slam latch. - A
retractable clip system 740 type ofmechanical coupling system 712 may be used to secure themount 702 to thebase member 701. In theretractable clip system 740, theclip 715 is integral to themount 702 and interfaces with theretention member 716 of thebase member 701. Referring now toFIGS. 17, 18 , 20, and 21, theclip system 740 can be viewed in more detail. Theclip 715 resides within aclip holder 741. Theclip 715 may be metallic, plastic or any suitable material that provides strength and flexibility. Theclip 715 has amale portion 742 that is supported from a resilient spring likesupport 743 in theclip holder 741; themale portion 742 is effectively spring loaded within theclip holder 741 and tends to extend out of theclip holder 741 at aclip slot 744. Theclip male portion 742 engages theretention member 716 of thebase member 701 and can be retracted by the insertion of thedecoupling arms 717 of the installation andremoval tool 703. The tool will be discussed in more detail later. - The
clip holder 741 includes atool guide slot 750 that accepts thedecoupling arms 717 of the installation and removal tool. Thetool guide slot 750 is shown in the drawings as being circular in shape, but it may be any geometric configuration e.g. to cooperate with thearms 717 and the clip. The shape of thetool guide slot 750 may be keyed to the shape of thearms 717, e.g. square, circular, hexagonal, or an unusual cross-section shape, so thatonly arms 717 of the prescribed cross-sectional shape would be able to fit into the tool guide slot and/or to release themechanical coupling system 712. This keying can provide a measure of security to avoid removal of themount 702 from thebase member 701 by an unauthorized individual. - The
tool guide slot 750 provides a path along the surface of theclip 715 such that as thearms 717 are inserted, the arms push theclip 715 inside theclip holder 741, thus disengaging themale portion 742 of the clip from theretention member 716. After the mechanical coupling is disengaged, force may be applied to themount 702 using the installation andremoval tool 703 to break the magnetic bond and thus to remove themount 702 from thebase member 701. It follows that the reverse procedure may be implemented to install themount 702 to thebase member 701. Theclip holder 741 also includes a lockingpin guide 752, which houses a lockingpin 753. The locking pin is discussed in more detail below. - Referring to
FIGS. 17 and 18 , the installation andremoval tool 703 includes a base 718 a, which has anattachment slot 718 b or socket that allows an elongated member such aspole 720 to be inserted into the base. Theattachment slot 718 b is shown in the drawings as being circular in shape, but it is not limited to such implementations. Insertion and use of apole 720 allows the installation andremoval tool 703 it to be extended into areas not normally accessible to install and/or remove themount 702 relative to abase member 701, e.g. without the assistance of some other height altering device, such as a step ladder. Thedecoupling arms 717 extend out from the base 718 a and are of sufficient length to retract the retainingclips 715 as they are inserted into theguide slots 750 urging themale portion 742 of the respective clips into theclip holder 741 so as not to grab to or to lock with respect to theretention member 716 of themount 702. Also, thedecoupling arms 717, as well as the other portions of thetool 703, provide the required strength and stability to support, to manipulate, and/or to position themount 702, including any attacheddevice 704, and the necessary force required to disengage the magnetic coupling system. Thedecoupling arms 717 may have a notch 717 a to provide an interlock with thelocking pin 753, which is discussed below. - Referring back to FIGS. 21A-D, to ensure the
mount 702 remains securely attached to the installation andremoval tool 703 while themount 702 is being installed or removed, a locking pin orclip 753 may be included within theclip holder 741 of themount 702. Thelocking pin 753 includes anotch 754 and also includes a surface 754 a that interfaces with a corresponding notch 717 a in adecoupling arm 717 of the installation andremoval tool 703. The locking pin orclip 753 is maintained in an extended position by aspring 755, and descends into theclip holder 741 by striking thebase member 701 as themount 702 andbase member 701 are mated. Thelocking pin 753 moves perpendicularly to thetool guide slot 750, thus intersecting thedecoupling arm 717 of the installation andremoval tool 703 at approximately a 90 degree angle. In the retracted position, thenotch 754 of thelocking pin 753 aligns with thetool guide slot 750, thus providing an unobstructed path for thedecoupling arms 717 to travel. However, if thelocking pin 753 is extended, as would be the case when themount 702 is not mated to thebase member 701, thetool guide slot 750 is obstructed by the locking pin surface 754 a, preventing an object from passing thelocking pin 753. If thedecoupling arms 717 are fully inserted into thetool guide slot 750, the notch 717 a of thedecoupling arm 717 lines up with thelocking pin 753. If the locking pin is in the extended position, the locking pin surface 754 a interlocks with the decoupling arm notch 717 a. This prevents thedecoupling arm 717 from being removed from thetool guide slot 750, and themount 701 is effectively locked to thetool 703. - It will be appreciated that although the
tool 703 is shown with twodecoupling arms 717, there may be only one or may be more than one, and theclip 715 and associated parts for coupling with theretention member 716 may be correspondingly modified to work in cooperation with a number of decoupling arms. The same or similar method of retaining themount 702 on thetool 703 also could be achieved in using a clip or the like which could be depressed by any part of themember 701. - In using the
system 700 of the present invention, thebase member 701 is assumed to be fixed to a rigid member, such as a wall or a pole. One would place themount 702, including thedevice 704 onto the installation andremoval tool 703. To accomplish this, the retractingpin 753 must be manually depressed into themount 702. Holding the retracting pins 753 against themount 702, thedecoupling arms 717 of thetool 703 are inserted into thetool guide slots 750. After thedecoupling arms 717 are fully inserted into themount 702, the locking pins 753 are released, thus locking themount 702 to thetool 703. If not already done, thepole 720 is inserted into the mount and the lockingscrew 719 b is tightened to clamp thepole 720 securely intosocket 718 b. Using the pole, the assembly is placed against thebase member 701. Themagnetic coupling system 711 provides holding force to keep themount 702 attached to thebase member 701. As themount 702 is coupled to thebase member 701, the locking pins 753 are pressed into the mount, aligning thenotch 754 of thelocking pin 753 with thetool guide slot 750. This provides an unobstructed path in thetool guide slot 750 for thedecoupling arms 717 to pass through, thus allowing thedecoupling arms 717 to be retracted from themount 702. After thedecoupling arms 717 are removed from the mount, theclip 740 extends out of theclip slot 744 and engages theretention member 716 of the base member, thus locking thebase member 701 and mount 702 together. - To remove the
mount 702 anddevice 704 from thebase member 701, thetool 703 is positioned towards themount 701. Thedecoupling arms 717 are inserted into thetool guide slots 750, thus urging theclip 740 back into theclip holder 741 and unlocking themount 702 from thebase member 701. Themagnetic coupling system 711 is now holding thebase member 701 and mount 702 together. Using thepole 720, force is applied to themount 702 to break the magnetic bond between thebase member 701 and themount 702. As themount 702 is separated from thebase member 701, the locking pins 753 are extended, placing surface 754 a of thelocking pin 753 in thetool guide slot 750. Notches 717 a of the decoupling arms interlock with the surface 754 a to prevent movement of thedecoupling arms 717, thus locking the mount to thetool 703. The mount may now be safely lowered to ground level. - Briefly referring to
FIGS. 22-27 , another embodiment ofmount 702′ is illustrated. The difference between themount 702′ and themount 702 is that themount 702′ includes fourmagnets 713. As is seen inFIGS. 22-27 , the fourmagnets 713 are positioned on respective supports of thecover 730; and the magnets are distributed about the circular shape of thecover 730. Although the magnets are not all equally spaced about the circumference of thecover 730, they are distributed so as to provide suitable holding function as was described above. - The
mount 702′ is shown inFIGS. 22-27 with theclip 715 omitted so the shape and arrangement of theclip slot 744,clip holder 741 andtool guide slot 750 clearly can be seen. Also, thecircular ring contact 723 b and fixed terminal 724 b are not illustrated inFIGS. 22-27 so the shape and arrangement of thesupport surface 725 s for the ring contact and thesupport 724 b′ for the fixed terminal clearly can be seen. InFIGS. 23 and 24 section views are illustrated; and from those views it can be seen that various portions of themount 702′ can be molded or otherwise formed of a single integral material, e.g., plastic, metal or other material. - Turning, now, to
FIGS. 28-32 , illustrated are several alternate embodiments of dual retention mechanisms for the various embodiments ofsystems 700 etc. disclosed herein. The dual retention system illustrated inFIGS. 28-32 include a magnetic retention mechanism of the various types described above, or some other retention mechanism that works based on contact or proximity, e.g., as Velcro fasteners, magnets or the like. Additionally, the dual retention system ofFIGS. 28-32 includes a latching mechanism similar to that illustrated in and described with respect to thelatching mechanism 510 ofFIG. 15 . - As is seen in
FIGS. 28 and 29 , thesystem 700″ has abase member 701″, mount 702″,magnetic retention mechanism 711, andmechanical retention mechanism 760. The mechanical retention mechanism includes two pairs ofcatch members movable latch arm 512′ so as to be movable to and fro relative to the catch members 761 a, 761 b. Thelatch arm 512′ is movable, e.g., slidable along and parallel to the bottom wall of thecover 730′ of themount 702″. Thelatch arm 512 a has semicircular portions that allow space for a centrally locatedmagnet 613 of the magnetic retention mechanism. If desired, the magnets may be about an outer perimeter area of thecover 730′ leaving the central area of the cover of themount 702″ available for electrical terminals, contacts and the like as was described above. - A spring-biased
lever arm 526 urges thelatch arm 512′ to the right relative to the illustration ofFIGS. 28 and 29 , to tend to move the catch members 762 to latch or to be in locking engagement with respective catch members 761 a, 761 b. As was described above with respect toFIG. 15 , inserting of a pole (rod, or the like) 720, for example, into thesocket 520 urges thelever arm 526 and thelatch arm 512′ to the left to unlatch or to unlock the respective pairs of catch members and/or to move the catch members 762 out of position relative to catch members 761 for installation of the mount to the base member without the catch members interfering with each other until the pole is removed. With thepole 720 inserted in thesocket 520, the mount can be installed on the base member; the mount would be retained to the base member by the magnet retention mechanism; and the pole then could be removed from the socket to allow the mechanical retention mechanism of the described catches to hold the mount and base member. - In
FIGS. 30-32 alternate arrangements of latch arms and catches generally of the type illustrated inFIGS. 28 and 29 are illustrated. The views illustrated inFIGS. 30-32 are “looking down” into thecover 730 ofrespective mounts 702″. Respective pairs of catch members mounts analogous to catch members 761, 762 are designated 763; it will be appreciated that the catch members 762 portion of a pair 763 would be associated with themount 702″, and the catch members 761 would be in thebase member 701″. - In
FIG. 30 there are four pairs of catch members 763 a-d; and the movable latch arm includes threeparts lever arm 526 in thesocket 520 as was described above. - In the
FIG. 31 embodiment there also are four pairs of catch members 763 a-d, and the movable latch arm also is in threeparts latch arm part 512 c′ is pivotable about apivot 764 so that as the movablelatch arm part 512 b moves to the left relative to the illustration, the catch member 762 of the pair ofcatch members 763 c at the left end of the movablelatch arm part 512 b moves left while the catch member 762 of the pair ofcatch members 763 d at the upper end (as illustrated) of the movable latch arm part 712 c′ moves to the right. In this case, the orientation of the catch member 761 of the pair ofcatch members 763 d would face in the opposite direction to the catch member 761 a inFIG. 29 . Therefore, the pairs ofcatch members mount 702″ to thebase member 701″, which may provide increased stability or security of retention function of the mechanical retention mechanism. - In
FIG. 32 another embodiment or arrangement of catch members 763 a-b of mechanical retention mechanism is illustrated. In this embodiment springs 765 resiliently urge the parts of themovable latch arm 512 and, thus, the catch members 763 a-b to locked condition. However, insertion of apole 720 into thesocket 520 urges the parts of thelatch arm 512 and, thus, the catch members 762 associated with the respective catch members 763 a-b to unlocked or unlatched condition, to facilitate removal of themount 702″ from abase member 701″. In this embodiment thesprings 765 may supplement the spring force of the spring-biasedlever arm 526 or may be the sole provider of the restoring force to locked condition; and in the latter case the spring-biasedlever arm 526 may be replaced by an arm that is pivotably mounted in thesocket 520. - As was noted earlier, the
mechanical coupling system 712 may be implemented in several different embodiments, such as a touch latch and/or a slam latch. Referring toFIGS. 33 through 36 , a touch latch implementation of the present invention is shown. Thebase member 701 is shown inFIGS. 33-34 . Areceptacle 770 is a circular hole in thebase member 701 and accepts thetouch latch 772. The diameter of thereceptacle 770 is smaller than the diameter of thetouch latch 772, thus preventing the touch latch from passing through the receptacle; e.g. it acts as a centering guide. The reinforcingplate 774 provides added strength to thereceptacle 770 and is the primary latch point for the touch latch locking arm (described below). Thebase member 701 includes anouter wall 776, which also functions as a supplemental guide ring to facilitate mating thebase member 701 andmount 702. Theupper guide ring 778 further assists in guiding the travel of themount 702 as it is depressed into thebase member 701 to toggle thetouch latch 772. - Referring to
FIGS. 35 and 36 , themount 702 that includes part of the touch latch system can be seen. Thelower guide ring 786 interfaces with theupper guide ring 778 of thebase member 701 to assist in guiding themount 702 towards thebase unit 701 as thetouch latch 772 is manipulated. Thetouch latch 772 interfaces with thereceptacle 770 of thebase member 701 to lock the mount to the base member. As was noted previously, the diameter of thetouch latch 772 is greater than the diameter of thereceptacle 770, thus preventing the touch latch from passing through the receptacle (the upward direction, as shown, although direction is not crucial). If thelocking arm 782 is extended, the latch cannot be pulled out of the reinforcingplate 774 in which thereceptacle 770 is located (the downward direction). Thus, if thelocking arm 782 is extended, the touch latch can neither be moved “upward” or “downward”. The touch latch is locked in position. Thetouch latch 772 changes state (locked or unlocked) each time the latch is depressed. For example, starting in the locked state, if themount 702 is pressed toward thebase member 701, the latch toggles retracting the locking arm. Since the retractingarm 782 is no longer preventing the “downward” motion, themount 702 may be removed. Conversely, mating themount 702 to thebase member 701 and pressing the two together toggles the state of the latch again, thus extending thelocking arm 782 and locking themount 702 back to thebase member 701. Aspring 784 provides a force to return the touch latch to an extended position each time the latch is depressed. - A slam latch is analogous to a door latch in that disengaging the latch requires some external force, such as a twisting of a door knob or depressing a release button. Locking the latch requires merely pressing the latch against its mating member.
- Referring now to
FIG. 37 , there is shown an assembly 800 (also referred to herein as a coupling system or a mounting system) for releasably coupling afirst subassembly 802 and asecond subassembly 804. Thefirst subassembly 802 is secured to a mounting surface, e.g., a wall or a ceiling, and thesecond subassembly 804 provides a mountingsurface 806 for mounting devices, such as a smoke detector, a light fixture, a sign and the like. In one embodiment, the second subassembly defines atool acceptance aperture 808, such as a tool socket, which provides a location for attaching a tool, such as an elongate rod, to thesecond subassembly 804. Alternatively, a tool acceptance protrusion may be employed. The tool facilitates positioning thesecond subassembly 804 with respect to a remotely located (e.g., an area that cannot be reached without the use of a step ladder)first subassembly 802 for coupling the subassemblies together. The tool also facilitates removing the second subassembly from the first subassembly. Theassembly 800 includes a dual holding system (also referred to herein as a dual engagement system or a dual retention system) that includes afirst holding mechanism 810, which operates using a gravitational force in conjunction with an interlock, and asecond holding mechanism 812, which operates based on a positional relationship between the first and second subassemblies. - The
first holding mechanism 810 includes aledge interlock 814. As will be described in more detail below, theledge interlock 814 prevents thesecond subassembly 804 from moving in a direction generally perpendicular to the first subassembly 802 (e.g., moving in a generally horizontal direction when thesecond subassembly 804 is coupled to thefirst subassembly 802 mounted on a generally vertical support). Additionally, theledge interlock 814 prevents thesecond subassembly 804 from moving in a generally downward direction. - The
second holding mechanism 812 includes, for example, amagnet 816 and a magnifically responsivle plate to which the magnet may tend to hold, e.g., aferrous plate 818. Themagnet 816 is coupled to one of thefirst subassembly 802 and thesecond subassembly 804, and the ferrous plate is coupled to the other of thefirst subassembly 802 and thesecond subassembly 804. Thesecond holding mechanism 812 provides a holding force between thefirst subassembly 802 and thesecond subassembly 804. - It is noted that while a magnetic system is illustrated in the exemplary embodiment, other components can be used to provide the holding function of the
second holding mechanism 812. For example, mating hooks and eyelets (e.g., Velcro® fasteners) adhesively secured within or to thefirst subassembly 802 and thesecond subassembly 804 respectively, a detent means integrally formed with the first subassembly and the second subassembly, such as a peripheral detent, a latching means, or an interference fit can provide the holding function of the second holding mechanism. - With further reference to
FIGS. 38A-38C , thefirst subassembly 802 generally is a cuboid with a prism-shaped or wedge-shapedledge 820 extending from a substantially planarfront wall 822 and a substantially planar firsttop wall 824 of thefirst subassembly 802. The substantially planar firsttop wall 824 is connected to a substantially planar secondtop wall 826 through an outwardly flaringthird wall 828. Theangle 830 of thethird wall 828 relative to the firsttop wall 824 can vary depending on the desired holding force and ease of installation/removal of thesecond subassembly 804 from thefirst subassembly 802. For example, a steep angle, e.g., a 90 degree angle between the firsttop wall 824 and thethird wall 828, provides a larger holding force when compared to a shallow angle, e.g., a 10 degree angle between the first top wall and thethird wall 828. The steeper angle, however, requires slightly more manipulation of thesecond subassembly 804 for removal and/or installation of thesecond subassembly 804 with respect to thefirst subassembly 802. - The
first subassembly 802 also includes a generallyplanar back wall 832 for mounting to a secure surface, such as a wall, a pole, etc. The first subassembly can be mounted to a secure surface using fasteners, such as screws, for example. Aplanar bottom wall 834 generally is parallel to the firsttop wall 824 and the secondtop wall 826. The ferrous plate 818 (or a magnet 816) can be attached to thefront wall 822 and, as stated above, theferrous plate 818 in conjunction withmagnets 816 provide the holding force of thesecond holding mechanism 812. Two substantiallyplanar sidewalls 836 complete thefirst subassembly 802. - With further reference to
FIGS. 39A-39C , thesecond subassembly 804 includes or otherwise defines asocket 850 that substantially conforms to the shape of thefirst subassembly 802. The socket is formed between a substantiallyplanar bottom member 852, atop member 854, and a substantiallyplanar back member 856, which is generally perpendicular to thebottom member 852 and thetop member 854. More particularly, the second subassembly includes or otherwise defines aledge interlock 814 that interfaces with theledge 820 of thefirst subassembly 802. - The
ledge interlock 814 is formed in thetop member 854 by an upwardly flaring firstinner wall 858 connecting a second topinner wall 860 and a third topinner wall 862. The second topinner wall 860 and the third topinner wall 862 are generally parallel to each other and to a bottominner wall 866, and perpendicular to a backinner wall 864. The third topinner wall 862 is at a higher elevation than the second top inner wall when viewed in the orientation shown inFIG. 39B . Anangle 868 between the second topinner wall 860 and the upwardly flaring firstinner wall 858 should be about the same as theangle 830 of thefirst subassembly 802. This will help ensure that theledge interlock 814 of thesecond subassembly 804 properly interfaces with theledge 820 of thefirst subassembly 802. - The
top member 854 includes a planartop wall 870, which is generally parallel to the second and third topinner walls top member 854 also includes a topfront wall 872, which connects and is generally perpendicular to thetop wall 870 and the second topinner wall 860. - The
bottom member 852 includes a substantially planarbottom wall 874, which is generally parallel to the bottominner wall 866. Thebottom member 852 also includes a bottomfront wall 876, which connects and is generally perpendicular to thebottom wall 870 and the bottominner wall 866. Thebottom member 852 and thetop member 854 connect to theback member 856. - The
back member 856 includes the backinner wall 864 and the mountingsurface 806. As was described previously, magnets 816 (or the ferrous plate) are attached to the backinner wall 864 to provide a holding function between the first subassembly and second subassembly. The mountingsurface 806 is a generally planar surface, which is used to attach devices, such as, for example, a smoke alarm, a light fixture, a sign and the like. Atool acceptance aperture 808, such as a tool socket, is integrally formed in a bottom portion of theback member 856 and provides a means for attaching a tool, such as an elongate rod, to manipulate thesecond subassembly 804 relative to thefirst subassembly 802. The tool may be biased against aclosed end 878 of thesocket 808 by gravity, or may be threadedly engaged therein. Alternatively, a locking mechanism, such as a ball and groove lock (not shown), may be employed to secure the tool to thesecond subassembly 804.Planar sidewalls 880 join thebottom member 852, thetop member 854 and theback member 856. - The
second subassembly 804 can be coupled to thefirst subassembly 802 by using a tool, such as an elongate rod, to register the second subassembly to the first subassembly. The tool is inserted into thesocket 808 of thesecond subassembly 804, and the second subassembly is initially positioned at an angle with respect to the first subassembly. The angle at which thesecond subassembly 804 is initially positioned with respect to thefirst subassembly 802 depends on the size of theledge interlock 814, theledge 820, and thebottom member 852, as well as theangles second subassembly 804 and thefirst subassembly 802 must be sufficient to allow theledge interlock 814 to fit over and engage theledge 820. - Once the
ledge interlock 814 has engaged theledge 820, the angle between thesecond subassembly 804 and thefirst subassembly 802 is reduced until the backinner wall 864 of thesecond subassembly 804 is substantially parallel to thefront wall 822 of thefirst subassembly 802. At this point, thefirst holding mechanism 810 is engaged and is providing a holding force that prevents both downward movement and movement generally perpendicular to the first subassembly and the second subassembly, e.g., lateral or horizontal movement. Additionally, thesecond holding mechanism 812 is engaged and is providing a holding force that tends to prevent movement of thesecond subassembly 804 away from thefirst subassembly 802. After the second holding mechanism has engaged, the tool is removed from thesocket 808. - To remove or otherwise disengage the
second subassembly 804 from thefirst subassembly 802, the reverse of the above procedure is performed. For example, the tool can be inserted into thesocket 808 of thesecond subassembly 804, and an angular force applied to the second subassembly. The angular force causes thesecond holding mechanism 812 to release, thereby allowing thesecond subassembly 804 to be rotated approximately about theledge 820 to create an angle between the first and second subassemblies. The angle is increased until sufficient clearance is established to permit theledge interlock 814 of thesecond subassembly 804 to be lifted up and over theledge 820 of thefirst subassembly 802. Once the ledge interlock is disengaged from the ledge, thesecond subassembly 804 is lowered and then removed from the tool. - Referring to
FIG. 40 , an alternative embodiment of anassembly 800′ is shown. Theassembly 800′ is similar to theassembly 800 shown inFIG. 37 and includes afirst subassembly 802′ and asecond subassembly 804′. The first subassembly and the second subassembly include a duel retention system, which includes afirst holding mechanism 810 that operates using a gravitational force in conjunction with an interlock, and asecond holding mechanism 812′ that operates based on a positional relationship. The first holding mechanism of theassembly 800′ is substantially identical to the first holding mechanism of theassembly 800 described inFIG. 37 . Thesecond holding mechanism 812′, however, operates using a positive latch. - The positive latch includes components in both the
first subassembly 802′ and thesecond subassembly 804′. With further reference toFIGS. 41 and 42 A-42B, aslot 880 is formed in afront wall 822′ of thefirst subassembly 802′. Theslot 880 is generally rectangular in shape and is sized to accommodate acatch 882 in thesecond subassembly 804′. It should be appreciated, however, that size and shape of the slot can very depending on the size and shape of thecatch 882. - Referring briefly to
FIG. 43 , thecatch 882 can include anelongate portion 884 that is generally rectangular in shape and has apivot point 886. Thepivot point 886 is approximately at a center point of theelongate portion 884 of thecatch 882. A shaft (not shown) is inserted in thepivot point 886 and is attached to aninner portion 887 of theback member 856′. One end of aspring 888 is coupled to aback end 890 of thecatch 882, and the other end of thespring 888 is coupled to theclosed end 878 of thesocket 808. Thespring 888 tends to force theback end 890 of thecatch 882 in a downward direction relative to thepivot point 886, thereby raising afront end 892 of the catch relative to thepivot point 886. Thefront end 892 of thecatch 882 includes awedge shape head 894, which includes an upwardly and backwardly flaringwall 896 and aback wall 898. Theback wall 898 is substantially perpendicular to theelongate portion 884 of thecatch 882. - As the
second subassembly 804′ is registered against thefirst subassembly 802′, thewall 894 of thecatch 882 contacts anupper portion 899 of theslot 880 in the first subassembly. This contact tends to push thefront end 892 of thecatch 882 in a downward direction, thereby causing the catch to pivot and compress thespring 888. The movement of thefront end 892 of thecatch 882 in a downward direction relative to theupper portion 899 of theslot 880 allows the catch to pass through theslot 880. As theback wall 886 of thecatch 882 clears thetop portion 899 of theslot 880, the force of thecompressed spring 888 against theback end 890 of thecatch 882 causes the catch to pivot, thereby raising thefront end 892 and seating theback wall 896 of the catch against theupper portion 899 of the slot, thereby creating a secure interlock between thefirst subassembly 802′ and asecond subassembly 804′. Alternatively, as is described below, a tool can be used to operate thesecond holding mechanism 812. - The
assembly 800′ is coupled and decoupled in a similar manner as theassembly 800 ofFIG. 37 . The mechanics employed, however, are different between the two embodiments. For example, thesecond subassembly 804′ can be decoupled from thefirst subassembly 802′ using a tool, e.g., an elongate rod, which is inserted into thesocket 808 of thesecond subassembly 804′. As the tool is inserted into the socket, it comes in contact with theback end 890 of thecatch 882. The contact causes the catch to pivot, e.g., theback end 890 of thecatch 882 raises with respect to thepivot point 886 and, thus, thefront end 892 of the catch lowers with respect to thepivot point 886. As thefront end 892 of thecatch 882 pivots downward, it disengages theupper portion 899 of theslot 880, thereby releasing thesecond holding mechanism 812. Once thesecond holding mechanism 812 is released, thesecond subassembly 804′ can be removed from thefirst subassembly 802′ as was described previously with regards to theassembly 800 ofFIG. 37 , e.g., thesecond subassembly 804′ is manipulated using the tool to create an angle between the first subassembly and the second subassembly that is sufficient to allow theledge interlock 814 to clear theledge 820. - The
second subassembly 804′ can be coupled to thefirst subassembly 802′ using the reverse of the above-described procedure. In this instance, the tool is inserted into thesocket 808 of thesecond subassembly 804′, thereby forcing theback end 890 of thecatch 882 up with respect to thepivot point 886. In doing so, thefront end 892 of the catch moves in a downward direction with respect to thepivot point 886. Using the tool, thesecond subassembly 804′ is manipulated at an angle up and over theledge 820 of the first subassembly to engage thefirst holding mechanism 810. After thefirst holding mechanism 810 has been engaged, the angle between thesecond subassembly 804′ and thefirst subassembly 802′ is reduced until thefront wall 822′ of thefirst subassembly 802′ and theback wall 864′ of thesecond subassembly 804′ are substantially parallel to each other. At this point, thecatch 882 of the second subassembly is within theslot 880 of the first subassembly. The tool is removed from thetool socket 808 and thespring 888 pushes on theback end 890 of thecatch 882, thereby causing thefront end 894 of the catch to rise with respect to thepivot point 886. As thefront end 894 is raised, theback wall 898 of the catch contacts thetop portion 899 of theslot 880, thereby engaging the second holding mechanism. - The
assembly 800′ also includeselectrical contacts first subassembly 802′, and correspondingelectrical contacts second subassembly 804′. The electrical contacts can provide electrical power to devices mounted on the second subassembly. Thecontacts first subassembly 802′ are recessed, for example, to minimize the likelihood of accidental contact with electrical power. Thecontacts second subassembly 804′ extend out from the surface of the second subassembly to reach in the recess of the first subassembly and provide electrical continuity between the contacts. It should be appreciated that the electrical contacts can be included in any of the embodiments discussed herein. - Referring to
FIG. 44 , another embodiment of anassembly 800″ is shown. Theassembly 800″ is similar to theassembly FIGS. 37 and 40 , respectively, and includes afirst subassembly 802″ and asecond subassembly 804″. The first subassembly and the second subassembly include a duel retention system, which includes afirst holding mechanism 810 that operates using a gravitational force in conjunction with an interlock, and asecond holding mechanism 812″ that operates based on a positional relationship. The first holding mechanism of theassembly 800″ is substantially identical to the first holding mechanism of theassembly FIGS. 37 and 40 . Thesecond holding mechanism 812″, however, operates using a detent means. - The detent means includes components in both the
first subassembly 802″ and thesecond subassembly 804″. With further reference toFIGS. 45A and 45B , aridge 910 is formed in abottom wall 834′ of thefirst subassembly 802″. Theridge 910 can be semi-circular in shape, for example, and is sized to fit within a groove 912 (discussed below with respect toFIGS. 46A and 46B ) in thesecond subassembly 804′. Theridge 910, for example, can span the width of thebottom wall 834′ of thefirst subassembly 802″ or it can span only a portion of thebottom wall 834′. The extension of theridge 910 below thebottom wall 834′ depends on the desired holding force of thesecond holding mechanism 812″. As an example, an extension of about 0.25 inches is sufficient to provide a holding force for the second holding mechanism. It is to appreciated that other sizes and geometries are contemplated and within the scope of the invention. - Referring now to
FIGS. 46A and 46B , thegroove 912 of thesecond subassembly 804″ is formed in bottominner wall 866′ of thesecond subassembly 804″. Thegroove 912 is formed in a shape that provides a secure interlock with theridge 910, such as, for example, a semi-circular shape. Additionally, thegroove 912 is formed to facilitate separation of thesecond subassembly 804″ from thefirst subassembly 802″ when a sufficient force is applied to the second subassembly. A front portion of thebottom member 852′ can include an upwardly flaringwall 914 to facilitate thefirst member 852′ overcoming theridge 910 as thesecond subassembly 804″ is registered to thefirst subassembly 802″. - As the
second subassembly 804″ is registered to thefirst subassembly 802″, thewall 914 of thefirst member 852′ contacts theridge 910 of the first subassembly. This contact tends to push thefirst member 852′ in a downward direction relative to thefirst subassembly 802′, thereby allowing thefirst member 852′ to clear theridge 910. As theback wall 864 of thesecond subassembly 804″ becomes substantially parallel to thefront wall 822 of thefirst subassembly 802″, theridge 910 interfaces with thegroove 912 to create a secure interlock between the two subassemblies. - The
assembly 800″ is coupled and decoupled in a similar manner as theassembly 800 ofFIGS. 37 and 40 . Instead of magnetic force or a latch providing the holding function, theridge 910 and groove 912 provide the holding function. - While particular embodiments of the invention have been described in detail, it is understood that the invention is not limited correspondingly in scope, but includes all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Claims (24)
1. A mounting system, comprising:
a first subassembly attachable to a support;
a second subassembly that is releasably attachable to the first subassembly;
a multi-retention mechanism to hold the first subassembly and the second subassembly together, including
a first retention mechanism that is selectively operable to release and hold using a gravitational force;
a second retention mechanism that is selectively operable to release and hold responsive to a positional relationship between the first subassembly and the second subassembly.
2. The mounting system of claim 1 , wherein the first retention mechanism comprises a ledge interlock.
3. The mounting system of claim 2 , wherein the ledge interlock includes a wedge-shaped member on the first subassembly, and a wedge shape socket on the second subassembly.
4. The mounting system of claim 1 , further comprising an attachment for the second subassembly to coact with one end of an elongate member to manipulate the second subassembly
5. The mounting system of claim 4 , wherein the attachment is selected from the group consisting of a socket and a protrusion.
6. The mounting system of claim 1 , wherein the second retention mechanism includes a magnet and magnetically responsive plate.
7. The mounting system of claim 1 , wherein the second retention mechanism comprises Velcro.
8. The mounting system of claim 1 , wherein the second retention mechanism comprises a latch.
9. The mounting system of claim 8 , wherein the latch is spring operated.
10. The mounting system of claim 1 , wherein the second retention mechanism comprises a ridge formed in one of the first subassembly and the second subassembly and a groove formed in the other of the first subassembly and the second subassembly.
11. The mounting system of claim 1 , wherein a device is attached to the second subassembly.
12. The mounting system of claim 11 , wherein the device is a smoke detector.
13. The mounting system of claim 12 , wherein the smoke detector is battery powered.
14. The mounting system of claim 12 , wherein the smoke detector is externally powered.
15. The mounting system of claim 11 , wherein the device is a light fixture
16. The mounting system of claim 15 , wherein the light fixture is battery powered.
17. The mounting system of claim 15 , wherein the light fixture is externally powered.
18. The mounting system of claim 1 , further comprising electrical contacts.
19. The mounting system of claim 18 , wherein the electrical contacts are power contacts.
20. The mounting system of claim 18 , wherein the electrical contacts are signal contacts.
21. A method of releasably coupling a first subassembly to a relatively remote secured second subassembly, comprising the steps of:
coupling a tool to the first subassembly;
registering the first subassembly at an angle with respect to the second subassembly, thereby engaging a first holding mechanism;
reducing the angle between the second subassembly and the first subassembly, thereby engaging a second holding mechanism; and
uncoupling the tool from the first subassembly.
22. The method of claim 21 , wherein the step of uncoupling the tool from the first subassembly includes the step of pivoting a catch of the second subassembly to secure the second holding mechanism.
23. A method of removing a suspended subassembly that is releasably coupled to a relatively remote secured subassembly, comprising the steps of:
coupling a tool to the suspended subassembly;
applying a force to the tool to disengage a second holding mechanism, wherein the force is substantially perpendicular to an orientation of the secured subassembly;
increasing an angle between the second subassembly and the first subassembly to disengage a first holding mechanism; and
withdrawing the suspended subassembly.
24. The method of claim 23 , wherein the step of coupling a tool to the suspended subassembly includes the step of pivoting a catch of the suspended subassembly to release the second holding mechanism.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/958,060 US20050045784A1 (en) | 2000-12-06 | 2004-10-04 | Remotely attachable and separable coupling |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/730,920 US6644617B2 (en) | 2000-12-06 | 2000-12-06 | Remotely attachable and separable coupling |
US10/007,509 US7287738B2 (en) | 2000-12-06 | 2001-12-05 | Remotely attachable and separable coupling |
US10/958,060 US20050045784A1 (en) | 2000-12-06 | 2004-10-04 | Remotely attachable and separable coupling |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/007,509 Continuation-In-Part US7287738B2 (en) | 2000-12-06 | 2001-12-05 | Remotely attachable and separable coupling |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050045784A1 true US20050045784A1 (en) | 2005-03-03 |
Family
ID=46303006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/958,060 Abandoned US20050045784A1 (en) | 2000-12-06 | 2004-10-04 | Remotely attachable and separable coupling |
Country Status (1)
Country | Link |
---|---|
US (1) | US20050045784A1 (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
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US20090251250A1 (en) * | 2008-04-03 | 2009-10-08 | Tait Towers Inc. | Interlocking magnetic coupling members |
US20090293422A1 (en) * | 2008-05-29 | 2009-12-03 | Brindle Jr David R | Apparatus and method for an adjustable column |
US20100300038A1 (en) * | 2008-05-29 | 2010-12-02 | Brindle David R | Apparatus and method for an adjustable column |
US8826629B1 (en) * | 2013-03-15 | 2014-09-09 | David R. Brindle | Apparatus and method for an adjustable column |
US20150022340A1 (en) * | 2013-07-16 | 2015-01-22 | Leeo, Inc. | Electronic device with environmental monitoring |
US20150283957A1 (en) * | 2013-03-14 | 2015-10-08 | Termax Corporation | Magnetic Fastener Clip |
US9170625B1 (en) | 2014-07-15 | 2015-10-27 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9213327B1 (en) | 2014-07-15 | 2015-12-15 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9304590B2 (en) | 2014-08-27 | 2016-04-05 | Leen, Inc. | Intuitive thermal user interface |
US9372477B2 (en) | 2014-07-15 | 2016-06-21 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9445451B2 (en) | 2014-10-20 | 2016-09-13 | Leeo, Inc. | Communicating arbitrary attributes using a predefined characteristic |
US9642480B1 (en) * | 2015-12-28 | 2017-05-09 | Jonathan P Tanger | Apparatus for suspending object on a wall |
US9778235B2 (en) | 2013-07-17 | 2017-10-03 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9801013B2 (en) | 2015-11-06 | 2017-10-24 | Leeo, Inc. | Electronic-device association based on location duration |
ES2646824A1 (en) * | 2016-06-14 | 2017-12-18 | Fulgencio PALAZÓN MARTÍNEZ | Sealing system for registers of lampposts and similar elements of street furniture and procedure for their assembly (Machine-translation by Google Translate, not legally binding) |
US9865016B2 (en) | 2014-09-08 | 2018-01-09 | Leeo, Inc. | Constrained environmental monitoring based on data privileges |
US9926708B1 (en) | 2016-06-01 | 2018-03-27 | Mikulas Janko | Magnetic fasteners and wall cover system |
US10026304B2 (en) | 2014-10-20 | 2018-07-17 | Leeo, Inc. | Calibrating an environmental monitoring device |
US20180206631A1 (en) * | 2017-01-26 | 2018-07-26 | Bose Corporation | Electronics Enclosure Mounting |
GB2563579A (en) * | 2017-06-14 | 2018-12-26 | Elmdene International Ltd | Wall mountable electrical devices |
US20190047803A1 (en) * | 2017-08-09 | 2019-02-14 | Ernest Martell | Protective Panel for Shielding a Dock Pad |
US20190112819A1 (en) * | 2017-10-17 | 2019-04-18 | Inpro Corporation | Self-Engaging Mounting Method for Wall Panels |
US20200116298A1 (en) * | 2018-10-12 | 2020-04-16 | Investment Group «Kopernik», LLC | Stand Holder for a Mobile Device |
US10805775B2 (en) | 2015-11-06 | 2020-10-13 | Jon Castor | Electronic-device detection and activity association |
US20210254643A1 (en) * | 2020-02-13 | 2021-08-19 | Scott Snedeker | Magnetic standoff system |
US20210317668A1 (en) * | 2020-04-10 | 2021-10-14 | Stephen Joseph Ruggiero, Sr. | Engineered, flood resilient, magnetically adhered, interior wall panel and trim system |
US11178986B2 (en) * | 2017-11-28 | 2021-11-23 | Darren Mark Maynard | Positioning and stabilizing device for picture frames and the like |
US11193629B2 (en) * | 2019-05-24 | 2021-12-07 | Norphonic AS | Bracket assembly |
US20220096866A1 (en) * | 2020-09-30 | 2022-03-31 | Varian Medical Systems, Inc. | Electromagnetic interface mount for radiation machines |
US11437755B2 (en) * | 2019-10-11 | 2022-09-06 | Home Theater Direct, Inc. | Controller and system |
US20240008709A1 (en) * | 2022-07-06 | 2024-01-11 | Munchkin, Inc. | Magnetic tool set |
US20240044441A1 (en) * | 2022-08-03 | 2024-02-08 | Jacob Frost | Magnetic Plate Wall Mount |
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Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
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US20090251250A1 (en) * | 2008-04-03 | 2009-10-08 | Tait Towers Inc. | Interlocking magnetic coupling members |
US8525626B2 (en) | 2008-04-03 | 2013-09-03 | Tait Towers Manufacturing Llc | Interlocking magnetic coupling members |
US20090293422A1 (en) * | 2008-05-29 | 2009-12-03 | Brindle Jr David R | Apparatus and method for an adjustable column |
US20100300038A1 (en) * | 2008-05-29 | 2010-12-02 | Brindle David R | Apparatus and method for an adjustable column |
US8407967B2 (en) | 2008-05-29 | 2013-04-02 | David R. Brindle, JR. | Apparatus and method for an adjustable column |
US8453416B2 (en) | 2008-05-29 | 2013-06-04 | David R. Brindle | Apparatus and method for an adjustable column |
US20150283957A1 (en) * | 2013-03-14 | 2015-10-08 | Termax Corporation | Magnetic Fastener Clip |
US9499108B2 (en) * | 2013-03-14 | 2016-11-22 | Termax Corporation | Magnetic fastener clip |
US8826629B1 (en) * | 2013-03-15 | 2014-09-09 | David R. Brindle | Apparatus and method for an adjustable column |
US20150022340A1 (en) * | 2013-07-16 | 2015-01-22 | Leeo, Inc. | Electronic device with environmental monitoring |
US9324227B2 (en) | 2013-07-16 | 2016-04-26 | Leeo, Inc. | Electronic device with environmental monitoring |
US9778235B2 (en) | 2013-07-17 | 2017-10-03 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9170625B1 (en) | 2014-07-15 | 2015-10-27 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9213327B1 (en) | 2014-07-15 | 2015-12-15 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9372477B2 (en) | 2014-07-15 | 2016-06-21 | Leeo, Inc. | Selective electrical coupling based on environmental conditions |
US9304590B2 (en) | 2014-08-27 | 2016-04-05 | Leen, Inc. | Intuitive thermal user interface |
US10043211B2 (en) | 2014-09-08 | 2018-08-07 | Leeo, Inc. | Identifying fault conditions in combinations of components |
US10304123B2 (en) | 2014-09-08 | 2019-05-28 | Leeo, Inc. | Environmental monitoring device with event-driven service |
US9865016B2 (en) | 2014-09-08 | 2018-01-09 | Leeo, Inc. | Constrained environmental monitoring based on data privileges |
US10078865B2 (en) | 2014-09-08 | 2018-09-18 | Leeo, Inc. | Sensor-data sub-contracting during environmental monitoring |
US10102566B2 (en) | 2014-09-08 | 2018-10-16 | Leeo, Icnc. | Alert-driven dynamic sensor-data sub-contracting |
US10026304B2 (en) | 2014-10-20 | 2018-07-17 | Leeo, Inc. | Calibrating an environmental monitoring device |
US9445451B2 (en) | 2014-10-20 | 2016-09-13 | Leeo, Inc. | Communicating arbitrary attributes using a predefined characteristic |
US9801013B2 (en) | 2015-11-06 | 2017-10-24 | Leeo, Inc. | Electronic-device association based on location duration |
US10805775B2 (en) | 2015-11-06 | 2020-10-13 | Jon Castor | Electronic-device detection and activity association |
US9642480B1 (en) * | 2015-12-28 | 2017-05-09 | Jonathan P Tanger | Apparatus for suspending object on a wall |
US9926708B1 (en) | 2016-06-01 | 2018-03-27 | Mikulas Janko | Magnetic fasteners and wall cover system |
ES2646824A1 (en) * | 2016-06-14 | 2017-12-18 | Fulgencio PALAZÓN MARTÍNEZ | Sealing system for registers of lampposts and similar elements of street furniture and procedure for their assembly (Machine-translation by Google Translate, not legally binding) |
US10492602B2 (en) * | 2017-01-26 | 2019-12-03 | Bose Corporation | Electronics enclosure mounting |
US10835033B2 (en) * | 2017-01-26 | 2020-11-17 | Bose Corporation | Electronics enclosure mounting |
US20200000218A1 (en) * | 2017-01-26 | 2020-01-02 | Bose Corporation | Electronics Enclosure Mounting |
US20180206631A1 (en) * | 2017-01-26 | 2018-07-26 | Bose Corporation | Electronics Enclosure Mounting |
GB2563579A (en) * | 2017-06-14 | 2018-12-26 | Elmdene International Ltd | Wall mountable electrical devices |
GB2563579B (en) * | 2017-06-14 | 2022-01-19 | Elmdene International Ltd | Wall mountable electrical devices for serviceable components |
US20190047803A1 (en) * | 2017-08-09 | 2019-02-14 | Ernest Martell | Protective Panel for Shielding a Dock Pad |
US10589945B2 (en) * | 2017-08-09 | 2020-03-17 | Ernest Martell | Protective panel for shielding a dock pad |
US11015350B2 (en) * | 2017-10-17 | 2021-05-25 | Inpro Corporation | Self-engaging mounting method for wall panels |
US20190112819A1 (en) * | 2017-10-17 | 2019-04-18 | Inpro Corporation | Self-Engaging Mounting Method for Wall Panels |
US11178986B2 (en) * | 2017-11-28 | 2021-11-23 | Darren Mark Maynard | Positioning and stabilizing device for picture frames and the like |
US20200116298A1 (en) * | 2018-10-12 | 2020-04-16 | Investment Group «Kopernik», LLC | Stand Holder for a Mobile Device |
US11193629B2 (en) * | 2019-05-24 | 2021-12-07 | Norphonic AS | Bracket assembly |
US11437755B2 (en) * | 2019-10-11 | 2022-09-06 | Home Theater Direct, Inc. | Controller and system |
US20210254643A1 (en) * | 2020-02-13 | 2021-08-19 | Scott Snedeker | Magnetic standoff system |
US11754101B2 (en) * | 2020-02-13 | 2023-09-12 | Scott Snedeker | Magnetic standoff system |
US20210317668A1 (en) * | 2020-04-10 | 2021-10-14 | Stephen Joseph Ruggiero, Sr. | Engineered, flood resilient, magnetically adhered, interior wall panel and trim system |
US20220096866A1 (en) * | 2020-09-30 | 2022-03-31 | Varian Medical Systems, Inc. | Electromagnetic interface mount for radiation machines |
US20240008709A1 (en) * | 2022-07-06 | 2024-01-11 | Munchkin, Inc. | Magnetic tool set |
US20240044441A1 (en) * | 2022-08-03 | 2024-02-08 | Jacob Frost | Magnetic Plate Wall Mount |
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Legal Events
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AS | Assignment |
Owner name: ACESSMOUNT LLC, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PITLOR, NELSON DOUGLAS;REEL/FRAME:015284/0345 Effective date: 20040924 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |