CA2756232C - Hose reel assembly - Google Patents
Hose reel assembly Download PDFInfo
- Publication number
- CA2756232C CA2756232C CA 2756232 CA2756232A CA2756232C CA 2756232 C CA2756232 C CA 2756232C CA 2756232 CA2756232 CA 2756232 CA 2756232 A CA2756232 A CA 2756232A CA 2756232 C CA2756232 C CA 2756232C
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- CA
- Canada
- Prior art keywords
- axis
- hose
- assembly
- drum
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
- B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
- B65H75/4413—Traversing devices; means for orderly arranging the material on the drum with a traversely moving drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/33—Hollow or hose-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6918—With hose storage or retrieval means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6918—With hose storage or retrieval means
- Y10T137/6954—Reel with support therefor
Abstract
A reel assembly (100) comprises a drum (10) configured to rotate about a drum axis (X). The drum is configured to receive a linear material wrapped around a spool surface thereof as the drum rotates about the drum axis. A housing (22, 24) substantially encloses the drum, wherein a portion of the housing defines an aperture (30) configured to receive the linear material therethrough. A reciprocating mechanism (200) connects to the drum and reciprocatingly rotates the drum relative to the shell about a generally vertical axis (Y) as the drum rotates about the drum axis.
Description
HOSE REEL ASSEMBLY
BACKGROUND OF THE INVENTION
Field of the Invention This invention relates generally to reels for spooling linear material and, in particular, to a reel including an improved reciprocating mechanism for distributing linear material across a rotating reel drum.
Description of the Related Art Reels for spooling linear material, such as a hose or wire, onto a rotating drum have incorporated reciprocating motion of a guide through which the linear material passes, to advantageously cause the linear material to be wrapped substantially uniformly around most of the surface area of the drum.
Several methods have been utilized in the past for achieving such reciprocating motion.
One common approach is to use a rotating reversing screw which causes a guide to translate back and forth in front of a rotating drum. For example, such an approach is shown in U.S. Pat. No.
BACKGROUND OF THE INVENTION
Field of the Invention This invention relates generally to reels for spooling linear material and, in particular, to a reel including an improved reciprocating mechanism for distributing linear material across a rotating reel drum.
Description of the Related Art Reels for spooling linear material, such as a hose or wire, onto a rotating drum have incorporated reciprocating motion of a guide through which the linear material passes, to advantageously cause the linear material to be wrapped substantially uniformly around most of the surface area of the drum.
Several methods have been utilized in the past for achieving such reciprocating motion.
One common approach is to use a rotating reversing screw which causes a guide to translate back and forth in front of a rotating drum. For example, such an approach is shown in U.S. Pat. No.
2,494,003 to Russ. However, such reversing screws tend to wear out quickly, degrading reel performance and necessitating frequent replacement. Further, such reversing screws are bulky and increase the size of the reel assembly.
Another approach for producing reciprocating motion of the guide is to use a motor to control a rotating screw upon which the guide translates. In this class of reels, the motor reverses the direction of rotation of the screw whenever the guide reaches an end of the screw.
Unfortunately, the repeated reversing of the motor increases the spooling time and causes the motor to wear down sooner. Other reels have incorporated significantly more complicated gear mechanisms for achieving the reciprocating motion.
Many reel constructions include exposed moving parts, such as the reel drum, guide, and motor. Over time, such moving parts can become damaged due to exposure. For example, an outdoor reel is exposed to sunlight and rain. Such exposure can cause the moving parts of the reel to wear more rapidly, resulting in reduced performance quality.
Thus, there is a need for a compact reel assembly having a reel with an improved reciprocating mechanism for efficiently distributing linear material across the reel drum.
SUMMARY OF THE INVENTION
Accordingly, it is a principle object and advantage of the present invention to overcome some or all of these limitations and to provide an improved reel incorporating a reciprocating mechanism.
In accordance with one embodiment, a reciprocating mechanism is provided, comprising an element adapted to rotate about a first axis and a worm gear extending along the first axis and coupled with respect to the element. The reciprocating mechanism also comprises a driven gear meshingly engaged with the worm gear, the driven gear configured to rotate about a driven gear axis. A lever is coupled to and configured to rotate along with the driven gear about the driven gear axis, the lever having an elongated slot. A guide member defines an encircling slot in a plane generally parallel to a plane within which the lever rotates. An elongate member has a portion extending completely or partially through, and adapted to move along, the elongated slot of the lever, the elongate member portion also extending completely or partially through, and adapted to move along, the encircling slot of the guide member. The elongate member is pivotably secured to a frame or housing such that the elongate member is configured to pivot about an axis generally perpendicular to the plane of the encircling slot.
Rotation of the element about the first axis produces rotation of the worm gear about the first axis, the rotation of the worm gear producing rotation of the driven gear and the lever about the driven gear axis, the rotation of the lever guiding the portion of the elongate member along the encircling slot in order to reciprocatingly pivot the element relative to the frame or housing about a second axis generally transverse to the first axis.
In accordance with another embodiment, a reel assembly is provided. The reel assembly comprises a drum configured to rotate about a drum axis and to receive a linear material being wrapped around a spool surface of the drum as the drum rotates about the drum axis and a housing substantially enclosing the drum, a portion of the housing defining an aperture configured to receive the linear material therethrough. The reel assembly also comprises a reciprocating mechanism, comprising a lever operatively coupled with respect to the drum and defining an elongated slot. A guide member is disposed proximal the lever, the guide member defining an encircling slot. An elongate member has a portion extending completely or partially through the elongated slot of the lever and extending completely or partially through the encircling slot of the guide member, the elongate member being pivotably coupled with respect to the housing. The rotation of the drum about the drum axis rotates the lever, which in turn guides the elongate member portion along the encircling slot so as to reciprocatingly rotate the drum relative to the housing about a reciprocation axis generally transverse with respect to the drum axis.
In accordance with another embodiment, a reel assembly is provided, comprising a drum configured to rotate about a drum axis and to receive a linear material being wrapped around a spool surface of the drum as the drum rotates about the drum axis and a housing substantially enclosing the drum, a portion of the housing defining an aperture configured to receive the linear material therethrough. The reel assembly also comprises a reciprocating mechanism configured to produce relative reciprocating rotation between the drum and the housing about an axis generally orthogonal to the drum axis and at a generally constant angular velocity between endpoints of the reciprocation for a given drum rotating speed about the drum axis.
In accordance with still another embodiment, a method for spooling linear material is provided. The method comprises rotating a drum about a first axis at a first speed, reciprocatingly rotating the drum about a second axis generally perpendicular to the first axis at a generally constant second speed between endpoints of the reciprocation, and drawing linear material onto the drum, the linear material being spooled across a surface of the drum by the reciprocating rotation of the drum.
For purposes of summarizing the invention and the advantages achieved over the prior art, certain objects and advantages of the invention have been described herein above. Of course, it is to be understood that not necessarily all such objects or advantages may be achieved in accordance with any particular embodiment of the invention. Thus, for example, those skilled in the art will recognize that the invention may be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein.
Another approach for producing reciprocating motion of the guide is to use a motor to control a rotating screw upon which the guide translates. In this class of reels, the motor reverses the direction of rotation of the screw whenever the guide reaches an end of the screw.
Unfortunately, the repeated reversing of the motor increases the spooling time and causes the motor to wear down sooner. Other reels have incorporated significantly more complicated gear mechanisms for achieving the reciprocating motion.
Many reel constructions include exposed moving parts, such as the reel drum, guide, and motor. Over time, such moving parts can become damaged due to exposure. For example, an outdoor reel is exposed to sunlight and rain. Such exposure can cause the moving parts of the reel to wear more rapidly, resulting in reduced performance quality.
Thus, there is a need for a compact reel assembly having a reel with an improved reciprocating mechanism for efficiently distributing linear material across the reel drum.
SUMMARY OF THE INVENTION
Accordingly, it is a principle object and advantage of the present invention to overcome some or all of these limitations and to provide an improved reel incorporating a reciprocating mechanism.
In accordance with one embodiment, a reciprocating mechanism is provided, comprising an element adapted to rotate about a first axis and a worm gear extending along the first axis and coupled with respect to the element. The reciprocating mechanism also comprises a driven gear meshingly engaged with the worm gear, the driven gear configured to rotate about a driven gear axis. A lever is coupled to and configured to rotate along with the driven gear about the driven gear axis, the lever having an elongated slot. A guide member defines an encircling slot in a plane generally parallel to a plane within which the lever rotates. An elongate member has a portion extending completely or partially through, and adapted to move along, the elongated slot of the lever, the elongate member portion also extending completely or partially through, and adapted to move along, the encircling slot of the guide member. The elongate member is pivotably secured to a frame or housing such that the elongate member is configured to pivot about an axis generally perpendicular to the plane of the encircling slot.
Rotation of the element about the first axis produces rotation of the worm gear about the first axis, the rotation of the worm gear producing rotation of the driven gear and the lever about the driven gear axis, the rotation of the lever guiding the portion of the elongate member along the encircling slot in order to reciprocatingly pivot the element relative to the frame or housing about a second axis generally transverse to the first axis.
In accordance with another embodiment, a reel assembly is provided. The reel assembly comprises a drum configured to rotate about a drum axis and to receive a linear material being wrapped around a spool surface of the drum as the drum rotates about the drum axis and a housing substantially enclosing the drum, a portion of the housing defining an aperture configured to receive the linear material therethrough. The reel assembly also comprises a reciprocating mechanism, comprising a lever operatively coupled with respect to the drum and defining an elongated slot. A guide member is disposed proximal the lever, the guide member defining an encircling slot. An elongate member has a portion extending completely or partially through the elongated slot of the lever and extending completely or partially through the encircling slot of the guide member, the elongate member being pivotably coupled with respect to the housing. The rotation of the drum about the drum axis rotates the lever, which in turn guides the elongate member portion along the encircling slot so as to reciprocatingly rotate the drum relative to the housing about a reciprocation axis generally transverse with respect to the drum axis.
In accordance with another embodiment, a reel assembly is provided, comprising a drum configured to rotate about a drum axis and to receive a linear material being wrapped around a spool surface of the drum as the drum rotates about the drum axis and a housing substantially enclosing the drum, a portion of the housing defining an aperture configured to receive the linear material therethrough. The reel assembly also comprises a reciprocating mechanism configured to produce relative reciprocating rotation between the drum and the housing about an axis generally orthogonal to the drum axis and at a generally constant angular velocity between endpoints of the reciprocation for a given drum rotating speed about the drum axis.
In accordance with still another embodiment, a method for spooling linear material is provided. The method comprises rotating a drum about a first axis at a first speed, reciprocatingly rotating the drum about a second axis generally perpendicular to the first axis at a generally constant second speed between endpoints of the reciprocation, and drawing linear material onto the drum, the linear material being spooled across a surface of the drum by the reciprocating rotation of the drum.
For purposes of summarizing the invention and the advantages achieved over the prior art, certain objects and advantages of the invention have been described herein above. Of course, it is to be understood that not necessarily all such objects or advantages may be achieved in accordance with any particular embodiment of the invention. Thus, for example, those skilled in the art will recognize that the invention may be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein.
All of these aspects are intended to be within the scope of the invention herein disclosed.
These and other aspects of the present invention will become readily apparent to those skilled in the art from the appended claims and from the following detailed description of the preferred embodiments having reference to the attached figures, the invention not being limited to any particular preferred embodiment(s) disclosed.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features, aspects and advantages of the present invention will now be described in connection with a preferred embodiment of the invention, in reference to the accompanying drawings. The illustrated embodiment, however, is merely an example and is not intended to limit the invention. The drawings include the following figures.
FIGURE 1 is a front perspective view of a disassembled reel, including a housing, in accordance with one embodiment.
FIGURE 2 is a bottom perspective view of a drum assembly with reciprocating mechanism, in accordance with one embodiment disclosed herein.
FIGURE 2A is a schematic illustration of a gear reduction between a motor and a gear of the reciprocating mechanism shown in FIGURE 2.
FIGURE 3 is a top and side perspective view of one embodiment of a drum assembly.
FIGURE 4 is bottom and side perspective view of the drum assembly in FIGURE 3.
FIGURE 5 is a top partially cut-away perspective view of the reciprocating mechanism shown in FIGURE 2.
FIGURE 6 is a bottom partially cut-away view of the reciprocating mechanism for a reel shown in FIGURE 2.
FIGURE 7 is a bottom and side partially cut-away perspective view of reciprocating mechanism of FIGURE 2.
These and other aspects of the present invention will become readily apparent to those skilled in the art from the appended claims and from the following detailed description of the preferred embodiments having reference to the attached figures, the invention not being limited to any particular preferred embodiment(s) disclosed.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features, aspects and advantages of the present invention will now be described in connection with a preferred embodiment of the invention, in reference to the accompanying drawings. The illustrated embodiment, however, is merely an example and is not intended to limit the invention. The drawings include the following figures.
FIGURE 1 is a front perspective view of a disassembled reel, including a housing, in accordance with one embodiment.
FIGURE 2 is a bottom perspective view of a drum assembly with reciprocating mechanism, in accordance with one embodiment disclosed herein.
FIGURE 2A is a schematic illustration of a gear reduction between a motor and a gear of the reciprocating mechanism shown in FIGURE 2.
FIGURE 3 is a top and side perspective view of one embodiment of a drum assembly.
FIGURE 4 is bottom and side perspective view of the drum assembly in FIGURE 3.
FIGURE 5 is a top partially cut-away perspective view of the reciprocating mechanism shown in FIGURE 2.
FIGURE 6 is a bottom partially cut-away view of the reciprocating mechanism for a reel shown in FIGURE 2.
FIGURE 7 is a bottom and side partially cut-away perspective view of reciprocating mechanism of FIGURE 2.
FIGURE 8A is a top view of the drum assembly of FIGURE 2 illustrating one position in the reciprocating rotation of the drum.
FIGURE 8B is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 8C is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 8D is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 8E is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 9A is a top and front perspective view of the reel assembly of FIGURE 1 illustrating one position in the reciprocating rotation of the drum.
FIGURE 9B is a top and front perspective view of the reel assembly of FIGURE 1 illustrating another position in the reciprocating rotation of the drum.
FIGURE 10 is a top partially cut-away perspective view of another embodiment of a reciprocating mechanism.
For ease of illustration, some of the drawings do not show certain elements of the described apparatus.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In the following detailed description, terms of orientation such as "top,"
"bottom,"
"upper," "lower," "front," "rear," and "end" are used herein to simplify the description of the context of the illustrated embodiments. Likewise, terms of sequence, such as "first" and "second," are used to simplify the description of the illustrated embodiments.
Because other orientations and sequences are possible, however, the present invention should not be limited to the illustrated orientation. Those skilled in the art will appreciate that other orientations of the various components described above are possible.
FIGURE 8B is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 8C is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 8D is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 8E is a top view of the drum assembly of FIGURE 2 illustrating another position in the reciprocating rotation of the drum.
FIGURE 9A is a top and front perspective view of the reel assembly of FIGURE 1 illustrating one position in the reciprocating rotation of the drum.
FIGURE 9B is a top and front perspective view of the reel assembly of FIGURE 1 illustrating another position in the reciprocating rotation of the drum.
FIGURE 10 is a top partially cut-away perspective view of another embodiment of a reciprocating mechanism.
For ease of illustration, some of the drawings do not show certain elements of the described apparatus.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In the following detailed description, terms of orientation such as "top,"
"bottom,"
"upper," "lower," "front," "rear," and "end" are used herein to simplify the description of the context of the illustrated embodiments. Likewise, terms of sequence, such as "first" and "second," are used to simplify the description of the illustrated embodiments.
Because other orientations and sequences are possible, however, the present invention should not be limited to the illustrated orientation. Those skilled in the art will appreciate that other orientations of the various components described above are possible.
FIGURE 1 illustrates one embodiment of a reel assembly 100 substantially enclosing a drum assembly 10 in a housing. In the illustrated embodiment, the housing includes an upper or top shell portion 22 and a lower or bottom shell portion 24. Additionally, the upper and lower shell portions 22, 24 have the shape of upper and lower domes 26, 28, respectively, so that the reel assembly 100 has a generally spherical shape. However, the upper and lower shell portions 22, 24 can have any suitable shape, such as cylindrical and aspherical. As shown in FIGURE 1, the upper shell portion 22 includes a guide member 30 with an aperture (not shown), which preferably guides a linear material, such as a water hose, into and out of the housing of the reel assembly 100 as the linear material is wound onto or unwound from the drum assembly 10.
Additionally, the lower shell portion 24 is preferably supported by a plurality of legs 32.
However, other types of legs or support structures can be used. In one embodiment, a circumferential stand supports the lower shell portion 24 on a support surface. Preferably, the lower shell portion 24 is movably supported with respect to a lower support surface, so that the reel assembly 100 is capable of moving along the surface. For example, the legs 32 or support structure can have rollers.
As seen in FIGURES 1 and 2, the drum assembly 10 defines a first or drum axis X about which the drum rotates. Additionally, a housing or second axis Y extends through the reel assembly 100. In a preferred embodiment, the housing axis Y is generally vertical and the drum axis X is generally horizontal, so that the housing axis Y is generally orthogonal to the drum axis X. Further details on reel assemblies can be found in U.S. Patent No.
Additionally, the lower shell portion 24 is preferably supported by a plurality of legs 32.
However, other types of legs or support structures can be used. In one embodiment, a circumferential stand supports the lower shell portion 24 on a support surface. Preferably, the lower shell portion 24 is movably supported with respect to a lower support surface, so that the reel assembly 100 is capable of moving along the surface. For example, the legs 32 or support structure can have rollers.
As seen in FIGURES 1 and 2, the drum assembly 10 defines a first or drum axis X about which the drum rotates. Additionally, a housing or second axis Y extends through the reel assembly 100. In a preferred embodiment, the housing axis Y is generally vertical and the drum axis X is generally horizontal, so that the housing axis Y is generally orthogonal to the drum axis X. Further details on reel assemblies can be found in U.S. Patent No.
6,279,848.
FIGURES 2-7 illustrate one embodiment of a reciprocating mechanism 200 for a reel assembly. In one embodiment, the reciprocating mechanism 200 can be used with the reel assembly 100 illustrated in FIGURE 1. The reciprocating mechanism 200 preferably includes a frame 210 comprising a top frame and a bottom frame. In the illustrated embodiment, the top frame includes an upper ring 212 and the bottom frame includes a lower ring 214 (see FIGURE
1). In a preferred embodiment, the upper ring 212 is coextensive with and removably disposed on the lower ring 214. In another embodiment, the upper ring 212 overlaps the lower ring 214.
The upper and lower rings 212, 214 are preferably fastened to the upper and lower shell portions 22, 24, respectively, via any suitable method. In one embodiment, the shell portions 22, 24 can be fastened to the rings 212, 214, respectively, using bolts or screws. In another embodiment, the shell portions 22, 24 can be clamped, welded, or adhesively secured to the rings 212, 214.
In a preferred embodiment, the upper ring 212 can rotate relative to the lower ring 214.
For example, bearings 213, as shown in FIGURE 1, can be disposed between the upper and lower rings 212, 214. Preferably, the rings 212, 214 are sized to enclose a drum assembly 220, which consists of first and second end plates 222, 224 and a drum 226 disposed between the endplates 222, 224. As shown in FIGURES 2 and 5, a ring gear 230 is preferably attached to the first endplate 222.
The ring gear 230 is coupled to a shaft 232, which preferably extends into a hollow portion 228 of the drum 226 and rotatingly couples to a shaft support 234 disposed inside the hollow portion 228 (see FIGURE 3). In one preferred embodiment, the shaft support 234 is disposed generally at the center of the upper ring 212. In another embodiment, the shaft support 234 can be offset from the center of the upper ring 212. Preferably, the shaft support 234 allows the shaft 232 to rotate freely therein. For example, in one embodiment, the shaft 232 can couple to the shaft support 234 via a bearing (not shown) disposed therein. As explained more fully below, the shaft 232 is preferably hollow so as to convey water. Additionally, the connection between the shaft 232 and the shaft support 234 preferably inhibits the leakage of fluid therebetween, as further discussed below. For example, in one embodiment, the connection between the shaft 232 and the shaft 234 includes a substantially water-tight seal.
The shaft 232 also connects to a fitting 236. The fitting 236 couples to a conduit member 262 disposed within the lower shell portion 24 and disposed below the lower ring 214. In the illustrated embodiment, the conduit member 262 is curved and has a first end 264 that connects to the fitting 236, which in turn connects to the shaft 232. The conduit member 262 has a second end 266 disposed generally along an axis Y2 extending generally perpendicular to the upper and lower rings 212, 214. In one embodiment, the shell axis Y and the axis Y2 are coaxial.
Preferably, the second end 266 extends through an aperture (not shown) in the lower shell portion 24. In one preferred embodiment, the fitting 236 is not coupled to the upper ring 212.
Further description of the fitting 236 and the conduit member 262 is provided below.
As shown in FIGURE 5, an upper ring support member 238 extends from a surface of the upper ring 212. In the illustrated embodiment, the upper ring support member 23 8 defines a slot 239 therein. Preferably, the slot 239 extends along the length of the support member 238 and is sized to slidingly receive one end 245a of a support frame 245 coupled to the conduit member 262. As shown in FIGURE 5, the support frame 245 has a horizontal portion and a vertical portion, and the end 245a extends from the horizontal portion of the support frame 245.
In one embodiment, at least one bearing (not shown) is disposed in the slot 239 to facilitate the sliding of the end 245a of the support frame 245 relative to the slot 239.
However, other suitable methods for facilitating the sliding of the support frame 245 in the slot 239, such as, for example, applying a lubricant to at least one of the slot 239 and the end 245a of the support frame 245.
Preferably, the shaft 232 includes a worm gear section 242, which extends along at least a portion of the shaft 232. In one embodiment, the worm gear section 242 extends along substantially the entire length of the shaft 232. The shaft 232 is preferably integrally formed with the worm gear section 242. In another embodiment, the shaft 232 is removably coupled to the worm gear section 242 via, for example, a spline connection.
As shown in FIGURES 2, 6 and 7, the worm gear section 242 preferably meshingly engages a top or driven gear 244 mounted on and below the support frame 245.
As used herein, the "engagement" of two gears means that the teeth of one gear are engaged with the teeth of the other gear. The top gear 244 is in turn coupled to a lever 246 (see FIGURE 5), for example, via a pin 246a (see FIGURE 8B) that extends along an axis of rotation of the top gear 244. As shown in FIGURE 5, the lever 246 defines an elongated slot 247 therein. In a preferred embodiment, the top gear 244 and lever 246 are lockingly coupled, so that rotation of the top gear 244 results in rotation of the lever 246. In another embodiment, the top gear 244 and lever 246 are integrally formed. The lever 246 is preferably coupled to an elongate member 248, so that a first end or portion 248a of the elongate member 248 extends through and is adapted to slidingly move along the slot 247, while a second end or portion 248b of the elongate member 248 is pivotably secured to the support member 238. In one embodiment, the first end 248a of the elongate member 248 extends completely through the slot 24 7 of the lever 246 and at least partially or completely through the slot 252 of the guide member 250 (described below). In another embodiment, the lever 246 is below the guide member 250, and the first end 248a of the elongate member 248 extends completely through the slot 252 and at least partially or completely through the slot 24 7 of the lever 246.
FIGURES 2-7 illustrate one embodiment of a reciprocating mechanism 200 for a reel assembly. In one embodiment, the reciprocating mechanism 200 can be used with the reel assembly 100 illustrated in FIGURE 1. The reciprocating mechanism 200 preferably includes a frame 210 comprising a top frame and a bottom frame. In the illustrated embodiment, the top frame includes an upper ring 212 and the bottom frame includes a lower ring 214 (see FIGURE
1). In a preferred embodiment, the upper ring 212 is coextensive with and removably disposed on the lower ring 214. In another embodiment, the upper ring 212 overlaps the lower ring 214.
The upper and lower rings 212, 214 are preferably fastened to the upper and lower shell portions 22, 24, respectively, via any suitable method. In one embodiment, the shell portions 22, 24 can be fastened to the rings 212, 214, respectively, using bolts or screws. In another embodiment, the shell portions 22, 24 can be clamped, welded, or adhesively secured to the rings 212, 214.
In a preferred embodiment, the upper ring 212 can rotate relative to the lower ring 214.
For example, bearings 213, as shown in FIGURE 1, can be disposed between the upper and lower rings 212, 214. Preferably, the rings 212, 214 are sized to enclose a drum assembly 220, which consists of first and second end plates 222, 224 and a drum 226 disposed between the endplates 222, 224. As shown in FIGURES 2 and 5, a ring gear 230 is preferably attached to the first endplate 222.
The ring gear 230 is coupled to a shaft 232, which preferably extends into a hollow portion 228 of the drum 226 and rotatingly couples to a shaft support 234 disposed inside the hollow portion 228 (see FIGURE 3). In one preferred embodiment, the shaft support 234 is disposed generally at the center of the upper ring 212. In another embodiment, the shaft support 234 can be offset from the center of the upper ring 212. Preferably, the shaft support 234 allows the shaft 232 to rotate freely therein. For example, in one embodiment, the shaft 232 can couple to the shaft support 234 via a bearing (not shown) disposed therein. As explained more fully below, the shaft 232 is preferably hollow so as to convey water. Additionally, the connection between the shaft 232 and the shaft support 234 preferably inhibits the leakage of fluid therebetween, as further discussed below. For example, in one embodiment, the connection between the shaft 232 and the shaft 234 includes a substantially water-tight seal.
The shaft 232 also connects to a fitting 236. The fitting 236 couples to a conduit member 262 disposed within the lower shell portion 24 and disposed below the lower ring 214. In the illustrated embodiment, the conduit member 262 is curved and has a first end 264 that connects to the fitting 236, which in turn connects to the shaft 232. The conduit member 262 has a second end 266 disposed generally along an axis Y2 extending generally perpendicular to the upper and lower rings 212, 214. In one embodiment, the shell axis Y and the axis Y2 are coaxial.
Preferably, the second end 266 extends through an aperture (not shown) in the lower shell portion 24. In one preferred embodiment, the fitting 236 is not coupled to the upper ring 212.
Further description of the fitting 236 and the conduit member 262 is provided below.
As shown in FIGURE 5, an upper ring support member 238 extends from a surface of the upper ring 212. In the illustrated embodiment, the upper ring support member 23 8 defines a slot 239 therein. Preferably, the slot 239 extends along the length of the support member 238 and is sized to slidingly receive one end 245a of a support frame 245 coupled to the conduit member 262. As shown in FIGURE 5, the support frame 245 has a horizontal portion and a vertical portion, and the end 245a extends from the horizontal portion of the support frame 245.
In one embodiment, at least one bearing (not shown) is disposed in the slot 239 to facilitate the sliding of the end 245a of the support frame 245 relative to the slot 239.
However, other suitable methods for facilitating the sliding of the support frame 245 in the slot 239, such as, for example, applying a lubricant to at least one of the slot 239 and the end 245a of the support frame 245.
Preferably, the shaft 232 includes a worm gear section 242, which extends along at least a portion of the shaft 232. In one embodiment, the worm gear section 242 extends along substantially the entire length of the shaft 232. The shaft 232 is preferably integrally formed with the worm gear section 242. In another embodiment, the shaft 232 is removably coupled to the worm gear section 242 via, for example, a spline connection.
As shown in FIGURES 2, 6 and 7, the worm gear section 242 preferably meshingly engages a top or driven gear 244 mounted on and below the support frame 245.
As used herein, the "engagement" of two gears means that the teeth of one gear are engaged with the teeth of the other gear. The top gear 244 is in turn coupled to a lever 246 (see FIGURE 5), for example, via a pin 246a (see FIGURE 8B) that extends along an axis of rotation of the top gear 244. As shown in FIGURE 5, the lever 246 defines an elongated slot 247 therein. In a preferred embodiment, the top gear 244 and lever 246 are lockingly coupled, so that rotation of the top gear 244 results in rotation of the lever 246. In another embodiment, the top gear 244 and lever 246 are integrally formed. The lever 246 is preferably coupled to an elongate member 248, so that a first end or portion 248a of the elongate member 248 extends through and is adapted to slidingly move along the slot 247, while a second end or portion 248b of the elongate member 248 is pivotably secured to the support member 238. In one embodiment, the first end 248a of the elongate member 248 extends completely through the slot 24 7 of the lever 246 and at least partially or completely through the slot 252 of the guide member 250 (described below). In another embodiment, the lever 246 is below the guide member 250, and the first end 248a of the elongate member 248 extends completely through the slot 252 and at least partially or completely through the slot 24 7 of the lever 246.
As best shown in FIGURE 5, a guide member or track 250 is disposed adjacent the lever 246, so that the guide member 250 extends along a plane generally parallel to a plane within which the lever 246 rotates. In the illustrated embodiment, the guide member 250 defines an encircling slot 252. In the illustrated embodiment, the encircling slot 252 extends only partially through the guide member 250, so as to define a groove or recess. In another embodiment, the encircling slot 252 can extend completely through the guide member 250. In the illustrated embodiment, the first end 248a of the elongate member 248 extends partially through and is adapted to move along the encircling slot 252 of the guide member 250, so that the elongate member 248 pivots about an axis generally perpendicular to the plane of the encircling slot 252.
In another embodiment, the first end 248a of the elongate member 248 can extend completely through the encircling slot 252 of the guide member 150. In the illustrated embodiment, the guide member 250 is disposed between the support frame 245 and the lever 246 and is preferably secured to the support frame 245. However, in another embodiment, the lever 246 can be positioned between the support frame 245 and the guide member 250. As used herein, encircling means surrounding, but is not necessarily limited to a circular surrounding.
In the illustrated embodiment, the guide member 250 is shaped somewhat in the form of a "D" (see FIGURE 8A).
However, the guide member 250 can have other suitable shapes, such as circular, oval, triangular and trapezoidal.
As shown, for example in FIGURE 2, the reciprocating mechanism 200 includes a motor 254 mounted to the support frame 245. In the illustrated embodiment, the motor 254 is disposed below the lower ring 214 and is housed in the lower shell portion 24.
Preferably, the motor 254 is an electric motor. The motor 254 preferably operatively connects to the ring gear 230 via a drive gear 256. For example, the motor 254 can, through a gear reduction comprising multiple gears, drive the drive gear 256, which can operatively drive the ring gear 230 at a desired speed.
One example of a gear reduction is shown in FIGURE 2A, which includes a motor gear 254a that meshingly engages and drives the drive gear 256. In the illustrated embodiment, another gear 257 (also shown in FIGURE 6), which is preferably co-axial with the drive gear 256, meshingly engages and drives the ring gear 230. However, the gear reduction can include any number of gears and have other configurations for operatively coupling the motor 254 to the ring gear 230.
Additionally, any desired gear ratio can be used. In one embodiment, the gear reduction has a gear ratio of 2 to 1. In another embodiment, the gear reduction has a gear ratio of 4 to 1. In still another embodiment, the gear reduction has a gear ratio of between about 2 to 1 and about 25 to 1. One example of a gear reduction between the motor 254 and the ring gear 230 is schematically shown in FIGURE 2A.
The reel 100 can also employ an electronic motor controller and associated electronic componentry for controlling the speed and direction of the motor 254. For example, while spooling the linear material 268 (see FIGURE 9A) onto the drum 226, a motor-controller can be employed to vary the motor speed based upon the length of unwound linear material 268. It will be appreciated that if the motor speed is constant, the inwardly pulled linear material 268 tends to move increasingly faster due to the increasing diameter of the spool itself. A motor-controller can adjust the motor speed to more safely control the motion of the linear material 268 during spooling. Also, a motor-controller can be used to slow or stop the motor 254 just before the linear material 268 becomes completely spooled onto the drum 226. Otherwise, the linear material 268 would get pulled into the housing or, if there is an object at the end of the linear material 268 (e.g., a nozzle), the object may whip against or otherwise impact the housing or a person near the housing. In addition, a motorcontroller can even be used to assist the user during unspooling of the linear material 268 (i.e., powered unspooling). One example of a motor-controller for a reel is disclosed in U.S. Patent No. 7,350,736 to Caamafio et al., entitled Systems and Methods for Controlling Spooling of Linear Material. Also, the motor 254 and/or motor-controller can be operated via a remote control. An exemplary remote control system for a motorized reel is disclosed in U.S. Patent No. 7,503,338 to Harrington et al.
In a preferred embodiment, a remote control is engaged on the spooled linear material 268 at or near its outward end. The remote control can send signals wirelessly (e.g., via radio frequency signals) or through a wire within the linear material.
As shown in FIGURES 3-4, the reciprocating mechanism 200 also has a platform that extends between the shaft support 234 and the edge of the upper ring 212.
As shown in FIGURE 8A, the platform 258 is disposed generally opposite the upper ring support member 238. The platform 258 preferably extends into the hollow portion 228 of the drum 226. In one embodiment, the platform 258 can support a battery 259 thereon, as shown in FIGURE 3, so that the battery 259 is disposed between the second endplate 224 and the upper ring 212. Preferably, the battery 259 provides power to the motor 254. Details of one suitable battery for use with the reciprocating mechanism 200 can be found in U.S. Patent No. 7,320,843 to Harrington, entitled Battery Assembly With Shielded Terminals.
As shown in FIGURES 3 and 4, the platform 258 preferably supports the shaft support 234 thereon. In the illustrated embodiment, a pin 234a of the shaft support 234 pivotably extends through an opening 258a of the platform 258, permitting the shaft support 234 to rotate with respect to the platform 258 about a vertical axis extending through the opening 258a. This pivot connection advantageously allows the reciprocating mechanism 200 to reciprocatingly rotate the drum 226 about the shell axis Y, as further discussed below.
As discussed above, the fitting 236 couples to the conduit member 262. In one embodiment, the second end 266 of the conduit 262 is configured to removably attach to a water hose (not shown). For example, the second end 266 can have a threaded surface for threaded engagement with a corresponding thread on the hose (e.g., a standard hose fitting). In another embodiment, the second end 266 can have a quick-disconnect portion configured to removably engage a corresponding quick-disconnect portion on the hose. Other mechanisms for connecting the hose and the conduit 262 are also possible. Preferably, water provided through the hose flows through the conduit 262 and through the fitting 236 and shaft 232 into the shaft support 234. In one preferred embodiment, the shaft support 234 communicates, for example, via a second conduit (not shown), with a second fitting 268 (see FIGURES 2 and 8A) disposed on the surface of the drum 226. In this manner, water can be supplied to a hose that has been spooled on the drum 226 and has been removably fastened to the second fitting 268. Any suitable mechanism for removably fastening the hose and the second fitting 268 can be used, such as a threaded engagement or a quick-disconnect connection. Further details on such an arrangement is shown, for example, in U.S. Patent No. 6,981,670 to Harrington, entitled Reel Having Apparatus for Improved Connection of Linear Material.
The rings 212, 214 and gears 230, 242, 244, 256 of the reciprocating mechanism 200 are preferably made of a strong material resistant to breaking. In one embodiment, the rings 212, 214 and gears, 230, 242, 244, 256 can be made of a metal or metal alloy, such as stainless steel and aluminum. However, other materials can also be used. In another embodiment, the rings 212, 214 and gears 230, 242, 244, 256 of the reciprocating mechanism 200 can be made of a hard plastic. In still another embodiment, the gears 230, 242, 244, 256 may be formed of acetyl, such as Deirin sold by Dupont, headquartered in Wilmington, DE. Various combinations of these materials are also possible.
The use of the reciprocating mechanism 200 to reciprocatingly rotate the drum assembly 220 is illustrated in FIGURES 8A-8E. Actuation of the motor 254 preferably rotates the ring gear 230 in one direction via the drive gear 256 and, optionally, a gear reduction assembly (see e.g., FIGURE 2A) operatingly coupling the motor 254 to the drive gear 256.
Rotation of the ring gear 230 in turn rotates the reel drum 226 via the first endplate 222.
Rotation of the ring gear 230 also rotates the shaft 232 in the same direction, causing the worm gear section 242 to also rotate. Rotation of the worm gear section 242 rotates the top or driven gear 244, which in turn rotates the lever 246 about the axis of the top gear 244. As the lever 246 rotates, it guides the first end 248a of the elongate member 248 about the axis of the top gear 244 and along the encircling slot 252 of the guide member 250, thus moving the elongate member back and forth.
As the lever 246 rotates and guides the first end 248a of the elongate member 248 about the axis of the top gear 244, the first end 248a also slides along the slot 247 of the lever 246. The movement of the elongate member 248 in turn reciprocatingly rotates the drum 226 relative to the upper ring 212 about the shell axis Y via the pivot connection 234a, 258a between the shaft support 234 and the platform 258. In one embodiment (e.g., if the slot 252 is circular), the reciprocating mechanism 200 reciprocatingly rotates the drum 226 so that an angular velocity of the drum about the shell axis Y fluctuates generally sinusoidally.
In a preferred embodiment, the slot 247 on the lever 246 and the encircling slot 252 on the guide member 250 allow the drum 226 to reciprocate about the shell axis Y
at a generally constant angular velocity between endpoints of the reciprocation for a given drum 226 rotation speed about the drum axis X. It is the general D-shape of the slot 252 that produces this outcome.
It will be appreciated that other sizes and shapes of the slot 252, slot 247, lever 246, and elongate member 248 can achieve the goal of a generally constant angular velocity between endpoints of the reciprocation.
In one embodiment, the upper shell portion 22, which is preferably fixed with respect to the upper ring 212, and the aperture guide 30 in the upper shell portion 22, remain in a fixed position while the drum 226 reciprocatingly rotates inside the housing to spool and unspool the linear material 268, as shown in FIGURES 9A-9B. In another embodiment, the reciprocating mechanism 200 reciprocatingly rotates the upper shell portion 22 about the shell axis Y, while the drum 226 is preferably in a substantially fixed angular position.
The substantially constant angular velocity of the drum 226 about the shell axis Y that is generated by the reciprocating mechanism 200 advantageously allows the spooling and unspooling of linear material onto the drum 226 with increased efficiency.
Such increased efficiency allows the use of a drum 226 having a smaller width to spool the same amount of linear material, requires less power to spool the same amount of linear material, and allows for an overall reduction in the size of the reel assembly 100. The reciprocating mechanism 200 according the embodiments discussed above also advantageously require about 30% less parts to operate than conventional reciprocating mechanisms.
FIGURE 10 illustrates another embodiment of a reciprocating mechanism 200'.
The reciprocating mechanism 200' is similar to the reciprocating mechanism 200, except as noted below. Thus, the reference numerals used to designate the various components of the reciprocating mechanism 200' are identical to those used for identifying the corresponding components of the reciprocating mechanism 200 in FIGURE 5, except that a " ' "
has been added to the reference numerals.
The reciprocating mechanism 200' includes a top or driven gear coupled to a lever 246' via a pin 246a' that extends along the axis of the top gear. The top gear and the lever 246' are preferably lockingly coupled, so that rotation of the top gear about the top gear axis results in rotation of the lever 246' in the same direction. In another embodiment, the top gear and the lever 246' can be integrally formed. The lever 246' is preferably pivotably coupled to an elongate member 248' at a first pivot point 248a'. The elongate member 248' is also pivotably secured to a support member 238' at a second pivot point 248b'. The relative motion between the lever 246' and the elongate member 248' advantageously generates a reciprocating motion of the drum 226' about a drum axis.
In a preferred embodiment, the gear ratio of the gear reduction and size of the ring gear 230, worm gear 242, drive gear 256, and top gear 244, as well as the lengths of the levers 246 and elongate member 248, are selected to reciprocatingly rotate the drum 226 relative to the upper ring 212 about the shell axis Y so as to cause a linear material to be generally uniformly wound onto the reel drum. Thus, the reciprocating mechanism 200 advantageously allows a linear material to be uniformly wound onto the drum 226.
As discussed above, the upper ring 212 and drum assembly 220 preferably rotate freely relative to the lower ring 214, preferably through 360 degrees and more, as desired. Therefore, the upper shell portion 22 coupled to the upper ring 212 can advantageously rotate freely relative to the lower shell portion 24, which is preferably fixed with respect to the lower ring 214.
Of course, the foregoing description is that of certain features, aspects and advantages of the present invention, to which various changes and modifications can be made without departing from the spirit and scope of the present invention. Moreover, the reciprocating mechanism for a reel assembly need not feature all of the objects, advantages, features and aspects discussed above. Thus, for example, those skilled in the art will recognize that the invention can be embodied or carried out in a manner that achieves or optimizes one advantage or a group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein. In addition, while a number of variations of the invention have been shown and described in detail, other modifications and methods of use, which are within the scope of this invention, will be readily apparent to those of skill in the art based upon this disclosure. It is contemplated that various combinations or subcombinations of these specific features and aspects of embodiments may be made and still fall within the scope of the invention. Accordingly, it should be understood that various features and aspects of the disclosed embodiments can be combined with or substituted for one another in order to form varying modes of the discussed reciprocating mechanism for a reel assembly.
In another embodiment, the first end 248a of the elongate member 248 can extend completely through the encircling slot 252 of the guide member 150. In the illustrated embodiment, the guide member 250 is disposed between the support frame 245 and the lever 246 and is preferably secured to the support frame 245. However, in another embodiment, the lever 246 can be positioned between the support frame 245 and the guide member 250. As used herein, encircling means surrounding, but is not necessarily limited to a circular surrounding.
In the illustrated embodiment, the guide member 250 is shaped somewhat in the form of a "D" (see FIGURE 8A).
However, the guide member 250 can have other suitable shapes, such as circular, oval, triangular and trapezoidal.
As shown, for example in FIGURE 2, the reciprocating mechanism 200 includes a motor 254 mounted to the support frame 245. In the illustrated embodiment, the motor 254 is disposed below the lower ring 214 and is housed in the lower shell portion 24.
Preferably, the motor 254 is an electric motor. The motor 254 preferably operatively connects to the ring gear 230 via a drive gear 256. For example, the motor 254 can, through a gear reduction comprising multiple gears, drive the drive gear 256, which can operatively drive the ring gear 230 at a desired speed.
One example of a gear reduction is shown in FIGURE 2A, which includes a motor gear 254a that meshingly engages and drives the drive gear 256. In the illustrated embodiment, another gear 257 (also shown in FIGURE 6), which is preferably co-axial with the drive gear 256, meshingly engages and drives the ring gear 230. However, the gear reduction can include any number of gears and have other configurations for operatively coupling the motor 254 to the ring gear 230.
Additionally, any desired gear ratio can be used. In one embodiment, the gear reduction has a gear ratio of 2 to 1. In another embodiment, the gear reduction has a gear ratio of 4 to 1. In still another embodiment, the gear reduction has a gear ratio of between about 2 to 1 and about 25 to 1. One example of a gear reduction between the motor 254 and the ring gear 230 is schematically shown in FIGURE 2A.
The reel 100 can also employ an electronic motor controller and associated electronic componentry for controlling the speed and direction of the motor 254. For example, while spooling the linear material 268 (see FIGURE 9A) onto the drum 226, a motor-controller can be employed to vary the motor speed based upon the length of unwound linear material 268. It will be appreciated that if the motor speed is constant, the inwardly pulled linear material 268 tends to move increasingly faster due to the increasing diameter of the spool itself. A motor-controller can adjust the motor speed to more safely control the motion of the linear material 268 during spooling. Also, a motor-controller can be used to slow or stop the motor 254 just before the linear material 268 becomes completely spooled onto the drum 226. Otherwise, the linear material 268 would get pulled into the housing or, if there is an object at the end of the linear material 268 (e.g., a nozzle), the object may whip against or otherwise impact the housing or a person near the housing. In addition, a motorcontroller can even be used to assist the user during unspooling of the linear material 268 (i.e., powered unspooling). One example of a motor-controller for a reel is disclosed in U.S. Patent No. 7,350,736 to Caamafio et al., entitled Systems and Methods for Controlling Spooling of Linear Material. Also, the motor 254 and/or motor-controller can be operated via a remote control. An exemplary remote control system for a motorized reel is disclosed in U.S. Patent No. 7,503,338 to Harrington et al.
In a preferred embodiment, a remote control is engaged on the spooled linear material 268 at or near its outward end. The remote control can send signals wirelessly (e.g., via radio frequency signals) or through a wire within the linear material.
As shown in FIGURES 3-4, the reciprocating mechanism 200 also has a platform that extends between the shaft support 234 and the edge of the upper ring 212.
As shown in FIGURE 8A, the platform 258 is disposed generally opposite the upper ring support member 238. The platform 258 preferably extends into the hollow portion 228 of the drum 226. In one embodiment, the platform 258 can support a battery 259 thereon, as shown in FIGURE 3, so that the battery 259 is disposed between the second endplate 224 and the upper ring 212. Preferably, the battery 259 provides power to the motor 254. Details of one suitable battery for use with the reciprocating mechanism 200 can be found in U.S. Patent No. 7,320,843 to Harrington, entitled Battery Assembly With Shielded Terminals.
As shown in FIGURES 3 and 4, the platform 258 preferably supports the shaft support 234 thereon. In the illustrated embodiment, a pin 234a of the shaft support 234 pivotably extends through an opening 258a of the platform 258, permitting the shaft support 234 to rotate with respect to the platform 258 about a vertical axis extending through the opening 258a. This pivot connection advantageously allows the reciprocating mechanism 200 to reciprocatingly rotate the drum 226 about the shell axis Y, as further discussed below.
As discussed above, the fitting 236 couples to the conduit member 262. In one embodiment, the second end 266 of the conduit 262 is configured to removably attach to a water hose (not shown). For example, the second end 266 can have a threaded surface for threaded engagement with a corresponding thread on the hose (e.g., a standard hose fitting). In another embodiment, the second end 266 can have a quick-disconnect portion configured to removably engage a corresponding quick-disconnect portion on the hose. Other mechanisms for connecting the hose and the conduit 262 are also possible. Preferably, water provided through the hose flows through the conduit 262 and through the fitting 236 and shaft 232 into the shaft support 234. In one preferred embodiment, the shaft support 234 communicates, for example, via a second conduit (not shown), with a second fitting 268 (see FIGURES 2 and 8A) disposed on the surface of the drum 226. In this manner, water can be supplied to a hose that has been spooled on the drum 226 and has been removably fastened to the second fitting 268. Any suitable mechanism for removably fastening the hose and the second fitting 268 can be used, such as a threaded engagement or a quick-disconnect connection. Further details on such an arrangement is shown, for example, in U.S. Patent No. 6,981,670 to Harrington, entitled Reel Having Apparatus for Improved Connection of Linear Material.
The rings 212, 214 and gears 230, 242, 244, 256 of the reciprocating mechanism 200 are preferably made of a strong material resistant to breaking. In one embodiment, the rings 212, 214 and gears, 230, 242, 244, 256 can be made of a metal or metal alloy, such as stainless steel and aluminum. However, other materials can also be used. In another embodiment, the rings 212, 214 and gears 230, 242, 244, 256 of the reciprocating mechanism 200 can be made of a hard plastic. In still another embodiment, the gears 230, 242, 244, 256 may be formed of acetyl, such as Deirin sold by Dupont, headquartered in Wilmington, DE. Various combinations of these materials are also possible.
The use of the reciprocating mechanism 200 to reciprocatingly rotate the drum assembly 220 is illustrated in FIGURES 8A-8E. Actuation of the motor 254 preferably rotates the ring gear 230 in one direction via the drive gear 256 and, optionally, a gear reduction assembly (see e.g., FIGURE 2A) operatingly coupling the motor 254 to the drive gear 256.
Rotation of the ring gear 230 in turn rotates the reel drum 226 via the first endplate 222.
Rotation of the ring gear 230 also rotates the shaft 232 in the same direction, causing the worm gear section 242 to also rotate. Rotation of the worm gear section 242 rotates the top or driven gear 244, which in turn rotates the lever 246 about the axis of the top gear 244. As the lever 246 rotates, it guides the first end 248a of the elongate member 248 about the axis of the top gear 244 and along the encircling slot 252 of the guide member 250, thus moving the elongate member back and forth.
As the lever 246 rotates and guides the first end 248a of the elongate member 248 about the axis of the top gear 244, the first end 248a also slides along the slot 247 of the lever 246. The movement of the elongate member 248 in turn reciprocatingly rotates the drum 226 relative to the upper ring 212 about the shell axis Y via the pivot connection 234a, 258a between the shaft support 234 and the platform 258. In one embodiment (e.g., if the slot 252 is circular), the reciprocating mechanism 200 reciprocatingly rotates the drum 226 so that an angular velocity of the drum about the shell axis Y fluctuates generally sinusoidally.
In a preferred embodiment, the slot 247 on the lever 246 and the encircling slot 252 on the guide member 250 allow the drum 226 to reciprocate about the shell axis Y
at a generally constant angular velocity between endpoints of the reciprocation for a given drum 226 rotation speed about the drum axis X. It is the general D-shape of the slot 252 that produces this outcome.
It will be appreciated that other sizes and shapes of the slot 252, slot 247, lever 246, and elongate member 248 can achieve the goal of a generally constant angular velocity between endpoints of the reciprocation.
In one embodiment, the upper shell portion 22, which is preferably fixed with respect to the upper ring 212, and the aperture guide 30 in the upper shell portion 22, remain in a fixed position while the drum 226 reciprocatingly rotates inside the housing to spool and unspool the linear material 268, as shown in FIGURES 9A-9B. In another embodiment, the reciprocating mechanism 200 reciprocatingly rotates the upper shell portion 22 about the shell axis Y, while the drum 226 is preferably in a substantially fixed angular position.
The substantially constant angular velocity of the drum 226 about the shell axis Y that is generated by the reciprocating mechanism 200 advantageously allows the spooling and unspooling of linear material onto the drum 226 with increased efficiency.
Such increased efficiency allows the use of a drum 226 having a smaller width to spool the same amount of linear material, requires less power to spool the same amount of linear material, and allows for an overall reduction in the size of the reel assembly 100. The reciprocating mechanism 200 according the embodiments discussed above also advantageously require about 30% less parts to operate than conventional reciprocating mechanisms.
FIGURE 10 illustrates another embodiment of a reciprocating mechanism 200'.
The reciprocating mechanism 200' is similar to the reciprocating mechanism 200, except as noted below. Thus, the reference numerals used to designate the various components of the reciprocating mechanism 200' are identical to those used for identifying the corresponding components of the reciprocating mechanism 200 in FIGURE 5, except that a " ' "
has been added to the reference numerals.
The reciprocating mechanism 200' includes a top or driven gear coupled to a lever 246' via a pin 246a' that extends along the axis of the top gear. The top gear and the lever 246' are preferably lockingly coupled, so that rotation of the top gear about the top gear axis results in rotation of the lever 246' in the same direction. In another embodiment, the top gear and the lever 246' can be integrally formed. The lever 246' is preferably pivotably coupled to an elongate member 248' at a first pivot point 248a'. The elongate member 248' is also pivotably secured to a support member 238' at a second pivot point 248b'. The relative motion between the lever 246' and the elongate member 248' advantageously generates a reciprocating motion of the drum 226' about a drum axis.
In a preferred embodiment, the gear ratio of the gear reduction and size of the ring gear 230, worm gear 242, drive gear 256, and top gear 244, as well as the lengths of the levers 246 and elongate member 248, are selected to reciprocatingly rotate the drum 226 relative to the upper ring 212 about the shell axis Y so as to cause a linear material to be generally uniformly wound onto the reel drum. Thus, the reciprocating mechanism 200 advantageously allows a linear material to be uniformly wound onto the drum 226.
As discussed above, the upper ring 212 and drum assembly 220 preferably rotate freely relative to the lower ring 214, preferably through 360 degrees and more, as desired. Therefore, the upper shell portion 22 coupled to the upper ring 212 can advantageously rotate freely relative to the lower shell portion 24, which is preferably fixed with respect to the lower ring 214.
Of course, the foregoing description is that of certain features, aspects and advantages of the present invention, to which various changes and modifications can be made without departing from the spirit and scope of the present invention. Moreover, the reciprocating mechanism for a reel assembly need not feature all of the objects, advantages, features and aspects discussed above. Thus, for example, those skilled in the art will recognize that the invention can be embodied or carried out in a manner that achieves or optimizes one advantage or a group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein. In addition, while a number of variations of the invention have been shown and described in detail, other modifications and methods of use, which are within the scope of this invention, will be readily apparent to those of skill in the art based upon this disclosure. It is contemplated that various combinations or subcombinations of these specific features and aspects of embodiments may be made and still fall within the scope of the invention. Accordingly, it should be understood that various features and aspects of the disclosed embodiments can be combined with or substituted for one another in order to form varying modes of the discussed reciprocating mechanism for a reel assembly.
Claims (14)
1. A hose reel assembly comprising:
a spool member configured to rotate about a first axis to wind a hose onto the spool member or unwind a hose from the spool member, the spool member also configured to rotate about a second axis that is substantially perpendicular to the first axis;
a hollow conduit assembly having an end positioned substantially along the second axis and being configured to be coupled with a fluid source so that fluid may flow from the fluid source into the conduit assembly, the conduit assembly extending to a location substantially along the first axis, the conduit assembly extending from said location to an interior of the spool member;
a housing substantially enclosing the spool member, a portion of the housing defining an aperture configured to receive a hose therethrough for spooling the hose onto the spool member;
a hose attachment fitting on the spool member, the hose attachment fitting configured to be coupled with a hose that may be wound upon the spool member, the conduit assembly being connected to the hose attachment fitting at an interior of the spool member so that fluid may flow from the conduit assembly through the hose attachment fitting into a hose coupled to the hose attachment fitting; and a first ring centered about the second axis;
a support frame coupled to the conduit assembly, the support frame supported by the first ring such that the spool member, the conduit assembly, and the support frame rotate together, relative to the first ring, about the second axis.
a spool member configured to rotate about a first axis to wind a hose onto the spool member or unwind a hose from the spool member, the spool member also configured to rotate about a second axis that is substantially perpendicular to the first axis;
a hollow conduit assembly having an end positioned substantially along the second axis and being configured to be coupled with a fluid source so that fluid may flow from the fluid source into the conduit assembly, the conduit assembly extending to a location substantially along the first axis, the conduit assembly extending from said location to an interior of the spool member;
a housing substantially enclosing the spool member, a portion of the housing defining an aperture configured to receive a hose therethrough for spooling the hose onto the spool member;
a hose attachment fitting on the spool member, the hose attachment fitting configured to be coupled with a hose that may be wound upon the spool member, the conduit assembly being connected to the hose attachment fitting at an interior of the spool member so that fluid may flow from the conduit assembly through the hose attachment fitting into a hose coupled to the hose attachment fitting; and a first ring centered about the second axis;
a support frame coupled to the conduit assembly, the support frame supported by the first ring such that the spool member, the conduit assembly, and the support frame rotate together, relative to the first ring, about the second axis.
2. The hose reel assembly of Claim 1, wherein the first ring is secured to the housing.
3. The hose reel assembly of Claim 2, wherein the housing comprises an upper shell portion, the first ring secured to the upper shell portion.
4. The hose reel assembly of Claim 3, wherein the housing further comprises a lower shell portion, wherein the first ring, upper shell portion, spool member, conduit assembly, and support frame rotate together about the second axis with respect to the lower shell portion.
5. The hose reel assembly of Claim 4, further comprising a second ring centered about the second axis and secured to the lower shell portion, the first ring and the second ring configured to rotate with respect to each other about the second axis.
6. The hose reel assembly of Claim 5, further comprising bearings disposed between the first ring and the second ring, to facilitate said rotation of the first and second rings with respect to each other about the second axis.
7. The hose reel assembly of Claim 1, wherein the support frame comprises an outer edge portion supported by the first ring.
8. The hose reel assembly of Claim 1, wherein the conduit assembly comprises a hollow conduit member having a first end at said location along the first axis, the conduit member also having a second end defining said end of the conduit assembly that is configured to be coupled to a fluid source.
9. The hose reel assembly of Claim 8, wherein the conduit assembly further comprises:
a conduit assembly fitting coupled to the first end of the conduit member; and a hollow shaft coupled to the conduit assembly fitting, the shaft extending along the first axis toward the interior of the spool member;
wherein the conduit assembly fitting is configured to permit fluid within the conduit member to flow through the conduit assembly fitting and into the shaft.
a conduit assembly fitting coupled to the first end of the conduit member; and a hollow shaft coupled to the conduit assembly fitting, the shaft extending along the first axis toward the interior of the spool member;
wherein the conduit assembly fitting is configured to permit fluid within the conduit member to flow through the conduit assembly fitting and into the shaft.
10. The hose reel assembly of Claim 1, further comprising:
a platform between the spool member and the first ring, such that the support frame and platform are on opposite ends of the spool member;
a battery supported on the platform; and an electric motor coupled with respect to the support frame, the motor adapted to produce rotation of the spool member about the first axis;
wherein the battery is connected to electrically power the motor.
a platform between the spool member and the first ring, such that the support frame and platform are on opposite ends of the spool member;
a battery supported on the platform; and an electric motor coupled with respect to the support frame, the motor adapted to produce rotation of the spool member about the first axis;
wherein the battery is connected to electrically power the motor.
11. The hose reel assembly of Claim 1, further comprising a motor coupled to the support frame and configured to produce rotation of the spool member about the first axis.
12. The hose reel assembly of Claim 1, wherein the housing is substantially spherical, and the conduit assembly has a curved section extending generally along an interior surface of the housing.
13. The hose reel assembly of Claim 1, wherein the conduit assembly extends through a fluid inlet aperture of the housing.
14. The hose reel assembly of Claim 1, further comprising a hose coupled with the hose attachment fitting.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68563705P | 2005-05-27 | 2005-05-27 | |
US60/685,637 | 2005-05-27 | ||
US77245506P | 2006-02-10 | 2006-02-10 | |
US60/772,455 | 2006-02-10 | ||
CA 2608460 CA2608460C (en) | 2005-05-27 | 2006-05-23 | Reciprocating mechanism for a reel assembly |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2608460 Division CA2608460C (en) | 2005-05-27 | 2006-05-23 | Reciprocating mechanism for a reel assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2756232A1 CA2756232A1 (en) | 2006-12-07 |
CA2756232C true CA2756232C (en) | 2012-08-07 |
Family
ID=36791644
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2608460 Expired - Fee Related CA2608460C (en) | 2005-05-27 | 2006-05-23 | Reciprocating mechanism for a reel assembly |
CA 2756232 Expired - Fee Related CA2756232C (en) | 2005-05-27 | 2006-05-23 | Hose reel assembly |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2608460 Expired - Fee Related CA2608460C (en) | 2005-05-27 | 2006-05-23 | Reciprocating mechanism for a reel assembly |
Country Status (15)
Country | Link |
---|---|
US (5) | US7533843B2 (en) |
EP (1) | EP1896356B1 (en) |
JP (1) | JP4979692B2 (en) |
AT (1) | ATE515472T1 (en) |
AU (1) | AU2006252833B2 (en) |
BR (1) | BRPI0610121A2 (en) |
CA (2) | CA2608460C (en) |
DK (1) | DK1896356T3 (en) |
HK (1) | HK1113777A1 (en) |
IL (1) | IL187364A0 (en) |
MX (1) | MX2007014683A (en) |
NZ (1) | NZ564883A (en) |
PT (1) | PT1896356E (en) |
RU (1) | RU2007146261A (en) |
WO (1) | WO2006130377A2 (en) |
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-
2006
- 2006-05-23 DK DK06770833T patent/DK1896356T3/en active
- 2006-05-23 EP EP20060770833 patent/EP1896356B1/en not_active Not-in-force
- 2006-05-23 MX MX2007014683A patent/MX2007014683A/en active IP Right Grant
- 2006-05-23 JP JP2008513584A patent/JP4979692B2/en not_active Expired - Fee Related
- 2006-05-23 BR BRPI0610121-6A patent/BRPI0610121A2/en not_active IP Right Cessation
- 2006-05-23 CA CA 2608460 patent/CA2608460C/en not_active Expired - Fee Related
- 2006-05-23 AT AT06770833T patent/ATE515472T1/en active
- 2006-05-23 WO PCT/US2006/019726 patent/WO2006130377A2/en active Application Filing
- 2006-05-23 PT PT06770833T patent/PT1896356E/en unknown
- 2006-05-23 NZ NZ564883A patent/NZ564883A/en not_active IP Right Cessation
- 2006-05-23 RU RU2007146261/11A patent/RU2007146261A/en not_active Application Discontinuation
- 2006-05-23 AU AU2006252833A patent/AU2006252833B2/en not_active Ceased
- 2006-05-23 CA CA 2756232 patent/CA2756232C/en not_active Expired - Fee Related
- 2006-05-24 US US11/420,164 patent/US7533843B2/en active Active
-
2007
- 2007-11-14 IL IL187364A patent/IL187364A0/en unknown
-
2008
- 2008-08-18 HK HK08109159A patent/HK1113777A1/en not_active IP Right Cessation
- 2008-11-12 US US12/269,734 patent/US7810751B2/en active Active
-
2010
- 2010-10-11 US US12/901,800 patent/US8006928B2/en not_active Expired - Fee Related
-
2011
- 2011-07-11 US US13/180,353 patent/US8141807B2/en not_active Expired - Fee Related
-
2012
- 2012-03-21 US US13/425,722 patent/US8424791B2/en active Active
Also Published As
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CA2608460C (en) | 2012-08-07 |
CA2756232A1 (en) | 2006-12-07 |
AU2006252833B2 (en) | 2011-06-02 |
US20110083754A1 (en) | 2011-04-14 |
BRPI0610121A2 (en) | 2012-12-11 |
HK1113777A1 (en) | 2008-10-17 |
ATE515472T1 (en) | 2011-07-15 |
AU2006252833A1 (en) | 2006-12-07 |
US20090065063A1 (en) | 2009-03-12 |
EP1896356B1 (en) | 2011-07-06 |
US20120292420A1 (en) | 2012-11-22 |
US7533843B2 (en) | 2009-05-19 |
US20110259444A1 (en) | 2011-10-27 |
US8141807B2 (en) | 2012-03-27 |
JP4979692B2 (en) | 2012-07-18 |
CA2608460A1 (en) | 2006-12-07 |
US8424791B2 (en) | 2013-04-23 |
IL187364A0 (en) | 2008-04-13 |
PT1896356E (en) | 2011-09-01 |
DK1896356T3 (en) | 2011-09-12 |
US20060266868A1 (en) | 2006-11-30 |
WO2006130377A3 (en) | 2007-03-15 |
US8006928B2 (en) | 2011-08-30 |
MX2007014683A (en) | 2008-01-24 |
RU2007146261A (en) | 2009-07-10 |
EP1896356A2 (en) | 2008-03-12 |
JP2008542155A (en) | 2008-11-27 |
US7810751B2 (en) | 2010-10-12 |
WO2006130377A2 (en) | 2006-12-07 |
NZ564883A (en) | 2010-05-28 |
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