WO2001018322A1

WO2001018322A1 - Placing device for placing holding plates

Info

Publication number: WO2001018322A1
Application number: PCT/EP2000/008666
Authority: WO
Inventors: Bernd Visher
Original assignee: Ivt Hannelore Blank
Priority date: 1999-09-09
Filing date: 2000-09-05
Publication date: 2001-03-15
Also published as: DE29915882U1; EP1210486A1; AU7514800A; WO2001018322A9

Abstract

The invention relates to a placing device for placing holding plates for fixing roofing on flat roofs. Said placing device comprises the following: a magazine (2) for a stack of holding plates (1), a support (3a, 3b) for the stack of holding plates, said support being movable in relation to the magazine, a clamping device (4) which is located to the side of the stack and which clamps or releases at least one holding plate, a fall shaft (26) for transferring an individual holding plate into a placement position parallel to the roof, said holding plate dropping from the support; and a fixing device (8) for fixing the holding plate, now located in the placement position, on the roofing. The movements of the support and clamping device are controlled by at least one cam gear.

Description

Setting device for setting holding plates

The invention relates to a setting device for setting holding plates or washers for fastening roof waterproofing membranes according to the preamble of patent claim 1.

Around roofs of structures, especially large-scale structures such as Factory or exhibition halls to seal, roof waterproofing membranes are laid. Retaining plates or washers are used to fasten these roofing sheets, which are fastened using a fastener, e.g. a nail or a screw to be fixed on the roof surface. The holding plates consist of flat or slightly profiled plate-like disks, such as those e.g. are described in DE 42 07 445 AI. They can be oval, round, angular, in particular square or triangular, preferably with rounded corners. They can have stiffening and / or mounting beads and should be provided with at least one hole through which the fastening means can be passed in order to fix the holder and thus the roofing membrane to the roof to be sealed.

From EP 0679477 A2 a device for screwing in screws with underlying support plates in roof sealing sheets is known. The device comprises a magazine for a stack of holding plates, a chute for transferring the holding plates from the magazine into a setting position and a fastening device for fastening the holding plate in the setting position in the roofing membrane. The holding plates Z are stacked vertically in the magazine. The magazine includes one at its lower end

Separating device. The stack of holding plates is held on the side by guide rods of the magazine. The lowest holding plate lies on a movable support for the stack of holding plates. Due to its weight, the holding plate falls into the drop chute underneath if the movable support clears the way. To ensure that not all of the holding plates fall into the chute at the same time when the support is open, the second lowest holding plate and thus all holding plates resting on it are fixed in their position in the magazine by means of a tensioner. The clamp presses the second lowest holding plate by means of spring force and holds it firmly in the magazine. If the lowest holding plate has fallen into the chute and the support has been moved back to its closed starting position, the tensioner is released. All holding plates thus slide down one position, and there is again a lower holding plate on the support. The tensioner is then returned to its starting position, in which it clamps the second lowest holding plate in the magazine, while the lower holding plate is only held by the support. The starting point for a new separation process has been restored. The individual holding plate as described above slides over an inclined plane into its seating position below the fastening device. A fastening screw is brought into position above the holding plate via a feed tube and then screwed into the roofing membrane by the fastening device. The movements of the support and the tensioner are controlled electrically. Electric motors and / or electromagnets are used.

The object of the present invention is to provide a setting device which is less prone to failure, robustly built and inexpensive.

According to the invention, a setting device for setting holding plates comprises a magazine for a stack of holding plates, which has a support for the stack of holding plates, which can be moved relative to the magazine, on the underside and a tensioner, which can be moved, preferably rotated, to the side of the stack and which is located at one Intervention in the magazine clamps or releases at least one holding plate. The setting device further comprises a chute for guiding one out of the Magazine falling, isolated holding plates in a setting position parallel to the roof and a fastening device for fastening the holder located in the setting position on the roofing membrane. The edition separates the magazine from the chute.

According to the invention, the movements of the support and the tensioner are controlled by at least one cam mechanism. At least one cam mechanism for controlling the support and another cam mechanism for controlling the tensioner are preferably provided. The at least one cam mechanism or each cam mechanism in the case of several cam mechanisms comprises a cam element and an engagement element. The cam member has at least one control cam which is matched to the movement of the engagement member along a control path. In order to facilitate the engagement of the engagement member, the control cam preferably has an inclination with respect to the direction of movement of the engagement member in an initial region of the engagement of the engagement member. Cam gears can be built robustly and can therefore be used advantageously on construction sites. By using a cam mechanism to control the sequence of movements, the setting device according to the invention is less susceptible to failure. The maintenance of mechanical cam gears is also easier and easier to do than that of sensitive electrical elements.

An engagement member of a cam mechanism of the support and an engagement member of a cam mechanism of the tensioner are preferably coupled to one another, preferably coupled to one another in a completely rigid manner, in the case of a plurality of engagement elements, the plurality of engagement elements being arranged on a common actuating means, preferably a rod. In a particularly preferred embodiment, a cam joint of a cam mechanism of the support and a cam joint of a cam mechanism of the tensioner are formed with a common engagement element, which first forms the one cam joint on a control path and, after this cam joint has dissolved, the other cam joint. The control path of the engaging member is understood to be the movement which the engaging member performs for controlling the movements of the support and the tensioner itself. The control path in the narrower sense of the term is particularly preferably one of the engagement member distance traveled. The support and the cam members are preferably slidably mounted transversely to the control path of the engagement member.

In a preferred embodiment, the support is connected to a cam member and the tensioner to another cam member. The connection is preferably rigid, whereby a particularly compact and stable mechanical control is obtained. The cam members each have a control cam on at least one side, on which the associated engagement member or the common engagement member slides or rolls, whereby the respective cam joint is formed. Through the engagement of the engaging member and the control cam or cam member, the cam member and the associated support or the tensioner connected thereto are positively moved in accordance with the shape of the control cam. The cam members are preferably movably supported independently of one another and are coupled to one another only by the engaging member or possibly the plurality of engaging members in such a way that a coordinated sequence of the movements of the support and the tensioner arises when the engaging member or the plurality of engaging members travel along the control cams.

A part is referred to as a tensioner, which presses laterally against a holding plate. A disk is preferably provided which has at least the thickness of a holding plate and which is mounted so that it can be rotated eccentrically or is itself eccentric. The result is an eccentric tensioner, which preferably presses laterally onto at least one holding plate by means of a spring force and thereby holds the entire stack of holding plates arranged above the clamped holding plate, so that they do not fall into the folding shaft. The eccentric tensioner is preferably controlled by a lever arm.

The cam member of the tensioner is preferably rigidly connected to the lever arm and essentially forms an angle. Preferably, the curve member of the support is rigidly connected to the support and essentially forms an angle. An angle of 90 ° is preferably provided. The result is a particularly compact arrangement. • S

The surface normals in each case of a control curve span a surface which is preferably perpendicular to the displacement surface of the support or the clamping direction of the tensioner.

The arrangement of the engagement member and control cams can also be interchanged. In principle, the support and the tensioner can each be connected to an engagement member, preferably stiffly, and a control curve is moved along the control path. The engagement members arranged along the control path are in this case moved in accordance with the shape of the control curve.

The arrangement of several curve elements along the control path determines the sequence of the movement sequence of the support and the tensioner. If curve elements are provided on the control path at the same heights, simultaneous movements result. Such an arrangement of a plurality of curve members preferably controls a support which is formed by a plurality of support parts. One of the support parts is connected to a curve member in this embodiment of the support. By the engagement member or the plurality of engagement members moving the control curves for the support parts or moving them away, the plurality of support parts are moved away, preferably simultaneously, under the stack of the holding plates and the magazine on its underside is thereby opened. If the curve elements overlap along the control path, the movements of the support and the tensioner also overlap. A cam member of the support and a cam member of the tensioner are preferably arranged one behind the other along the control path of the engagement member. In this way, separate movements of the support and the tensioner are generated. It is ensured that the support and the tensioner are never in their open positions at the same time, and thus the entire stack of holding plates can slide into the chute. This results in a timed movement control of the support and the tensioner. The control path of the engaging member can be a loop or a two-end path. The engagement member can be moved endlessly in one direction in a loop. If the control path is a non-closed route, the direction of movement of the engagement member is reversed. There is a reciprocating movement of the engagement member. A straight control path is particularly preferably provided.

Preferably, a cam member is pressed against a mechanical limitation by means of spring force and thereby held in an initial position and deflected by the engagement member against this spring force. A leaf spring, a spiral spring or another spring can be used to generate the spring force. A coil spring loaded under tension or pressure is preferably used. The curve element of the support is connected to the support so that it cannot move, preferably completely rigid. Thus, the support is also held in the starting position via the spring force. Likewise, the tensioner, and thus also a cam member connected to it that is displaceable, preferably completely rigid, is held in the starting position by means of spring force.

The engagement member is preferably formed by a cam or pin which is connected to the actuating means, preferably a linearly displaceable rod. The cam describes a linear back and forth movement along the curve members. The cam can be screwed, welded or otherwise connected to the rod. Simply moving the rod causes the support and the tensioner to move. The bar can be placed in different positions depending on how you want to move it. The rod can, for example, be arranged to be movable horizontally for movement with the foot, or more preferably vertically for support, for movement with the hand. The linear movement of the engaging member is transformed via the cam members into linear movements of the support and preferably a rotational movement of the tensioner, although the tensioner can also only be slidably mounted. An advantage of this arrangement is a simple, inexpensive, but stiff and therefore robust construction. To improve the running properties, the engagement member preferably has a scanning member, for example a roller rotatably mounted on a pin. A rolling bearing lubricated for life is particularly preferably used as the scanning element. Such a scanning element can easily overcome unevenness on the control surface of the curve elements and make it easier to engage in the curve elements. A In this case, the actuating device for the engagement member or the plurality of engagement members is particularly easy to move. One or more can be on the spigot

Be scanning elements applied. The load links are attached in such a way that they roll on the control surface of the cam links. Separate ones are preferred for curve members that come into engagement with the common engagement member at the same time

Scanning members provided on the engagement member.

The edition has two functions. On the one hand, it holds a holding plate above the chute, on the other hand it releases the holding plate so that it can fall into the chute. The support releases an outlet opening of the magazine by rotating the support away from the stack of holding plates or, preferably, pushing it linearly away. The support preferably comprises two parts which support the lowermost holding plate on opposite sides of the holding plate in a closed position. The holding plate is thus held securely, and only a short displacement path of the support parts is required to release them when they are moved away from one another. At least a first support part is preferably rigidly connected to a cam member. The other, second support part can be mechanically, e.g. a gear transmission or a cable, to which curve element of the first support part is connected. This enables movement of the support parts in different, preferably opposite, directions. Each part of the support is particularly preferably connected to its own curve element. Movements in opposite directions are achieved in that the cam members lie on different sides of the engagement member in the control path.

The two support parts are preferably moved simultaneously. Tilting of the holding plate is thus avoided. The cam members for controlling the movement of the support surfaces are arranged at the same level of the control path of the engagement member. These curve members are particularly preferably offset from one another transversely to the control path. A separate scanning element is preferably used for each curve element, which can then roll along the control surface of the curve element. This minimizes the friction between the cam member and the engaging member and thus the wear. S

In order to drive a fastening element into the roofing membrane, the fastening device executes a linear movement which is essentially perpendicular to the roof. The movement of the fastening device is preferably coupled to the movement of the actuating means, in particular of the engagement member. With a linearly displaceable rod, the fastening device and the engagement member are particularly preferably each rigid and thus also rigidly connected to one another.

When the fastening device moves up and down, the engagement member passes through the cam members twice. First with the downward movement of the fastening device for driving in the fastening element and once with the upward movement of the fastening device when moving back into the starting position. The correct arrangement is ensured by the arrangement of the curve elements. The stroke paths of the fastening device and the engagement member are matched to one another.

The following sequence of movements is preferably used. After a fastening element has been driven into the roofing membrane, the fastening device is moved upwards into its starting position. When the engaging member moves upward at the same time, it first engages in the cam member of the tensioner, whereby this releases the stack of holding plates for a short time. The holding plates sag down on the closed support. When the engagement member moves further, it disengages from the cam mechanism of the tensioner, causing the tensioner to clamp the second lowest holding plate again. If the engagement member is moved further, it comes into engagement with the curved members of the support, which thereby releases the lowest holding plate. This falls into and through the chute into a setting position for attachment to the roofing membrane. When the fastening device is moved upward, a holding plate is thus separated and transferred into the set position for the next fastening operation. When the fastening device moves downward, it is ensured that all holding plates in the stack slide down one position. For this purpose, the engagement member runs through the cam members in reverse order. °>

Another object of the invention is to improve the serviceability of a setting device. In a further development of the setting device, a maintenance position is provided for a slide arranged in the chute. The slide in the chute transfers a single holding plate into its setting position, which is located in the setting device directly below the fastening device. The slide can be moved to the maintenance position to remove a jammed holding plate or to rectify another malfunction. It can be provided to be removable or to be pushed away. It is preferably pivoted about a fixed axis. The slide is held in its working position by a bolt that can be moved against a spring force and thus releases the slide to move into the maintenance position.

Lying on the slide, a holding plate is moved across the magazine. The isolated holding plate is preferably guided laterally from the shaft as it slides into its seating position on the slide, the inclination of the slide decreasing. The inclination of the slide preferably decreases continuously in the direction of the setting position, the slide advantageously ending tangentially to the setting position. A gentle transfer of the holding plate into its set position is made possible. In its set position, the holding plate is held by one or more magnets until the fastening element connects the holding plate to the roof. A magnet preferably attracts the holding plate from the slide.

Another object of the invention is to be able to quickly adapt a setting device to new holder plate shapes. This object is achieved in a further development by forming an exchange module which comprises the magazine, with the supports and the tensioner, and the chute, with the slide. The exchange module is preferably formed from precisely these elements. In just a few simple steps, the entire holding plate feed device for holding plates of a different shape can be changed. The exchange module is preferably designed so that, for example, only the magazine can be replaced quickly and separately if it is defective. In a further development of the invention, a closure device is provided which holds a fastening element in a waiting position before processing, preferably by means of spring force. The waiting position of the fastening element is above the hole in the holding plate and below a driving head of the fastening device. The closure device is preferably formed by one or more slides which are held in a closed position by spring force. Spiral springs are preferably used. However, spiral springs could also be used, which in an alternative embodiment can also replace the slide or slides. If a force is exerted on the fastening element from above by means of the fastening device, the slide or slides or the bending springs bend apart and release the fastening element. The slider or slides are preferably designed obliquely on an upper side in order to facilitate sliding apart.

When the work step is interrupted, it is difficult to see whether a fastener has already been brought into the waiting position. In a development of the setting device, a mechanical display means is provided for a fastener inserted into the waiting position before processing. From the prior art, electrical display means such as Diodes known, which are difficult to read. According to the invention, a pivotable disc or flag is deflected by a fastening element in its waiting position before fastening. This display element preferably emerges from a cover, as a result of which it is visible to a user. For this purpose, an opening is provided in the cover. The signal effect of the display can be enhanced by providing the display element with a suitable signal color.

In a further development of the setting device, the storage of various fastening means should be made possible. According to the invention, a container is provided for this, which can be adapted to different sizes, in particular lengths, of the fastening means. A depth-adjustable container for providing fastening elements is provided, which has a base that is adjustable with respect to a wall of the container. Preferably, the bottom of the Container can be set at different heights relative to a container side wall. A rod that projects downward from the floor is particularly preferably fixed, preferably clamped, in the desired position. This allows flexible storage of different fasteners and it can be changed quickly.

In a further development of the setting device, the separation of fasteners should be made possible. The fastening elements are arranged in a magazine for the fastening elements, preferably one behind the other in a row. The longitudinal axes of the fastening elements are preferably arranged parallel to one another. The fastening elements preferably hang in a narrow gap, which is formed, for example, by two rods or sheets, the gap being narrower than a head diameter of the fastening elements, so that the fastening elements are held with their heads in the gap. The magazine includes a magazine outlet on which the fastening elements in the magazine are pressed. A separating device for separating the fastening elements from the magazine into a feed shaft is located at the magazine outlet. The feed shaft guides a single fastening element to a holding plate in accordance with the assembly.

According to the invention, the separating device comprises at least two closure elements for the magazine outlet. Exactly two closure elements are preferably provided. The closure elements are arranged one behind the other in the direction of the row of fastening elements such that there is preferably exactly one foremost fastening element between a front closure element and a rear closure element. The closure elements are each movably arranged between an open and a closed position. The rear fastener engages between the front fastener and the rest of the row of fasteners when the front fastener releases the front fastener. This means that the rear closure element is in its closed position when the front closure element is in its open position. The Closure elements are not in their open position at the same time. The closure elements preferably engage laterally in the row of fastening elements. They are preferably moved transversely to the conveying direction of the fastening elements.

The closure elements are preferably formed by sliders. Narrow plates made of plastic or metal are particularly preferably used as closure elements. With their narrow side, they are arranged along the fastening elements.

The front closure element particularly preferably engages on one side of the row of fastening elements and the rear closure element on the other side of the row of fastening elements. The closure elements are preferably moved simultaneously. The closure elements are particularly preferably connected to one another. The closure elements preferably overlap transversely to the conveying direction of the fastening elements. The overlap is preferably as large as the diameter of a fastener. The closure elements are preferably connected to one another via a swivel element. The swivel element is arranged rotatably about a swivel axis. The pivot axis is preferably located above the magazine outlet. The closure elements are fastened to the swivel element at a distance from the swivel axis. When the swivel element rotates, the closure elements move on a circular path between their open and their closed position.

The movement of the closure elements is preferably controlled by at least one cam mechanism. However, a separate cam mechanism can also be provided for each closure element. If the closure elements are displaced linearly, cam gears are preferably used, as previously described for the separating device of the holding plates. When the closure elements are pivoted via a common pivot element, the pivoting movement of the pivot element is controlled by at least one pivot arm. The swivel arm and an engagement member form a cam mechanism for the Movement control of the closure elements. The engagement member of the cam mechanism is preferably formed by a cam which is connected to a linearly displaceable rod. The cam mechanism of the closure elements is preferably articulated by the same actuating means as the cam mechanism of the support and the tensioner of the previously described separating device of the holding plates. With the same movement, a holding plate and a fastening element can be separated and the fastening element can be fastened to the holding plate on the roofing membrane.

A swivel arm preferably projects from the swivel element in such a way that it is deflected by a cam, which is preferably guided linearly past the swivel axis of the swivel element. The swivel arm projects into the control path of the engagement member.

An engagement side of the rear closure element, which first engages when the rear closure element engages in the row of fastening elements, is preferably pointed. An engagement of the rear closure element between the foremost fastening element and the rest of the row of fastening elements is thus facilitated.

The magazine for the fastening elements preferably forms an inclined plane in order to press the fastening elements against the magazine outlet by means of gravity.

The magazine preferably comprises two metal sheets placed next to one another, which have a somewhat greater distance from one another than the diameter of the fastening elements. With their larger head diameter, the fastening elements rest on both sides of the metal sheets and hang down in the correct position. The sheets are arranged obliquely downwards towards the magazine outlet, so that the fastening elements slide onto the separating device after being introduced into the magazine up to the magazine outlet.

The magazine of the fasteners is provided with a magazine inlet into which the fasteners can be inserted into the magazine. Preferably the magazine inlet is formed by an inlet funnel. The gap which is formed between the two raised sheets is particularly preferably widened by one of the side sheets being angled slightly outwards. In order to prevent a fastening element from being lost from the magazine inlet during transport, the magazine inlet is provided with a retaining device. The retaining device preferably comprises a leaf spring, which is preferably attached to the magazine inlet pointing obliquely in the direction of insertion of the fastening elements. When a fastener is inserted, the spring is deflected and resiliently back into a position in which it closes the magazine.

An isolated fastening element slips over a feed shaft into a waiting position before the fastening element is driven into the roofing membrane. The fastening element is held in the waiting position by a locking device.

All further developments of the invention can advantageously be used independently of one another, even without the use of cam mechanisms which control the movements of the support and the tensioner and / or the closure elements. The applicant therefore reserves the right to direct divisional applications to this.

The present invention is explained on the basis of exemplary embodiments. The features emerging here form the subjects of the claims in the disclosed combinations of features and also individually. Show it:

FIG. 1 shows a side view of a setting device according to the invention,

Figure 2 is a partially sectioned side view of a magazine

Separating device and chute with slide, Figure 3 is a partially sectioned top view of the magazine

Separating device and chute with slide, Figure 4 is a partially sectioned rear view of the magazine

Separating device and chute with slide, Figure 5 shows a section through a feed device after a first

embodiment

Figure 6 shows a container of the feeder of Figure 5 for the

Fasteners,

Figure 7 is a side view of a development of the invention

Setting device,

FIG. 8 shows a partially sectioned top view of the development of the setting device,

Figure 9 shows a detail of the magazine and the separating device of the

Fasteners according to view B of Figure 8,

Figure 10 shows a detail of the magazine and the separating device of the

Fasteners according to view C of Figure 8,

Figure 1 1 is a plan view of the separating device of the fasteners.

Figure 1 shows an overall side view of a setting device. The setting device comprises a base body 23, on the underside of which two wheels 24 are arranged along an axis for moving in a feed direction. The base body 23 carries a module 48 (FIG. 4) comprising a chute 26 with a slide 9 and a magazine 2 with a separating device 3a, 3b, 4, 5, 6a, 6b, 7. A guide tube is also connected to the base body 23 20 for a rod 16 and another guide tube 25 for an extension rod 18 of a fastening device 8. The fastening device 8 is fixedly connected to the longitudinally displaceable rod 16 via a rigid intermediate piece. At the upper end of the rod 16, a handpiece 21 is arranged for longitudinally displacing the rod 16. With the guide tube 20 for the rod 16, a reservoir 11 for the fastening means 12 is connected. In a lower region of the rod 16, an engagement member 5 in the form of a cam is firmly connected to the rod 16. It protrudes from the rod 16 and protrudes from the guide tube 20 through a lateral slot 22 in the guide tube 20 of the rod 16. The slot 22 in the guide tube 20 preferably runs from the lower end of the guide tube 20 to an upper slot end, which at the same time defines the uppermost position of the rod 16. The rod 16 is held in this uppermost position by spring force. Is applied via the handpiece 21 force on the rod 16 in the vertical direction downwards, which is larger than that Spring force, the fastening device 8 and at the same time the rod 16 with the cam 5 in the slot 22 move downward. The cam 5 protrudes so far from the rod 16 that it can engage in cam members 6a, 6b and 7.

The function of the separating device 3a, 3b, 4, 5, 6a, 6b, 7 is described with reference to FIGS. 2 and 3.

Figure 2 shows a partially sectioned side view of the magazine 2, which is mounted above the chute 26. The magazine 2 consists of cylindrical rods which are connected at their upper ends via a suitable insertion part for the holding plate 1. A stack of holding plates 1 is guided laterally by the magazine 2. The lowest holding plate 1 of a stack lies on the support 3a, 3b. It preferably consists of two parts 3a and 3b, which preferably hold opposite sides of the holding plate.

In the starting position of the separating device, a tensioner 4 clamps the second lowest holding plate 1 in the magazine 2. The tensioner 4 consists of a truncated cone which is rotatably mounted about an eccentric axis. The base of the truncated cone is cylindrical. The cylindrical base part of the truncated cone presses with its outer surface against the lateral surface of a holding plate 1. The pressure which is exerted on the holding plate 1 is so great that this holding plate and the holding plates lying thereon are held in the magazine. The eccentric cylinder stump is connected to a lever arm arranged transversely to the axis of rotation. A spring 27 generates a moment about the eccentrically mounted axis of rotation of the tensioner 4 via the lever 29 (FIG. 3), as a result of which the latter presses the second lowest holding plate 1 against the side of the magazine 2 opposite the tensioner 4. The second lowest holding plate 1 is thus clamped in its vertical position in the magazine 2 between the eccentric clamp 4 and at least one opposite guide rod of the magazine. The holding plates in the magazine are brought into the correct position via the inclined conical surface of the tensioner when they slide along it. π

A support part 3a or 3b is fixedly connected to the cam member 6a or 6b via a connecting piece 28a or 28b. The support part 3a or 3b and the cam member 6a or 6b are at right angles to each other and essentially form an angle. The support part 3a or 3b can also be connected directly to the cam member 6a or 6b.

A threaded bolt 35a fixes a guide rod 30a with the connector 28a. The guide rod 30 is longitudinally displaceable between guide points 31, 32. The other support part 3 b is fixedly connected in the same arrangement to the connecting piece 28b, the cam member 6b, the threaded bolt 35b and the guide rod 30b. The guide rod 30b is guided to be longitudinally displaceable in the guide points 33 and 34. The guide points 31 to 34 are firmly connected to a base plate 36 of the magazine 2. The support parts 3a, 3b can each be displaced horizontally in the direction of the axis of the guide rod 30 on the base plate 36. To limit the displacement of the support parts 3a, 3b, elongated holes 49a and 49b are made in the support parts 3a, 3b. Screws which are each guided through the elongated holes 49a, 49b and received in the base plate 36 of the magazine 2 form the stops for the displacement movement of the support parts 3a, 3b. The support parts 3a and 3b are held at a minimum distance from one another by means of a tension spring 37 clamped between the two threaded bolts 35a and 35b. In this starting position, they protrude into the magazine 2 until a holding plate 1 rests on the support parts 3a and 3b. In a second position, they are moved out of the magazine 2 until the holding plate is released.

A cam member 7 is attached to the lever 29 of the tensioner 4. The cam member is preferably attached to the end of the lever 29 remote from the tensioner 4 in order to reduce the adjusting force. The lever 29 is held biased by a compression spring 27. The spring 27 generates the clamping force with which the second lowest holding plate 1 is held in the magazine 2. In order to generate the highest possible clamping force, the spring 27 articulates the lever 29 at the end remote from the tensioner 4. IS>

In the starting position of the support parts 3a and 3b, the tensioner 4 presses laterally against the second lowest holding plate 1. The cam member 7 of the tensioner 4 is arranged in the control path of the cam 5 behind and spatially below the cam members 6a, 6b of the support parts 3a and 3b. This ensures that the movements of the support parts 3a and 3b never occur simultaneously with the release of the tensioner. The cam 5 is the common engaging member of the cam gear of the support 3a, 3b and the cam gear of the tensioner 4. When the engaging member 5 comes from above, it engages in the cam members 6a, 6b, which are arranged along the control path of the cam 5 at the same height , The cam members 6a and 6b are moved away from each other against the force of the tension spring 37 and thus release the support plate 1 lying thereon. The cam members 6a and 6b are preferably offset on both sides of the control path of the engagement member 5 transversely to the control path. Thus, their movements do not interfere and the cam members 6a and 6b can also overlap in the starting position in the direction of displacement of the support 3a, 3b. Preferably, two rolling bearings are axially mounted one behind the other on the engagement member 5, which form two scanning members 15. The one scanning member 15 preferably comes into contact only with the cam member 6a and the other scanning member 15 only with the cam member 6b. Thus, the scanning members 15 can roll individually on the control surface of the respectively associated cam member and thus the friction and wear can be minimized.

In an initial area of the first engagement of the engagement member 5, the cam members 6a, 6b and 7 have a cam section inclined to the direction of movement of the engagement member 5. When the engagement member 5 moves forward, the cam members 6a, 6b and 7 are deflected in these sections transversely to the direction of advance of the engagement member 5. Subsequently, each of the control cams runs parallel to the feed direction of the engaging member 5. In these control curve sections, the curve members remain in their assumed shifting positions. The parallel sections can be very short. In extreme cases, they are not necessary, but the course of the control cam should ensure that there is sufficient time for the holding plate 1 to fall. The movement of the curve members 6a, 6b again takes place along a further control curve section, in comparison with the first control curve section of opposite inclination until the curve members 6a and 6b are again in the starting position. If the engagement member 5 is moved further in the feed direction, it comes into engagement with the cam member 7 of the tensioner 4. In the maximally deflected position of the cam member 7 against the spring force of the compression spring 27, the tensioner 4 is deflected via the lever 29 such that the tensioner 4 of the holding plates 1 in the stack is free. All holding plates 1 in magazine 2 can thus slide down one position. They come to rest on the closed pad 3. If the engagement member 5 is moved further and comes out of engagement with the cam member 7 of the tensioner, the tensioner 4 presses again on the second lowest holding plate 1 and holds it clamped in the magazine 2.

The attachment of the chute 9 arranged in the chute 26 is shown in FIGS. 2 and 4. A holding plate 1 separated by the support parts 3a, 3b falls from the magazine 2 into the chute 26 in which the slide 9 is located. The chute 9 is rotatably mounted in the chute 26 about an axis of rotation 38 extending transversely to the direction of displacement of the support parts 3a and 3b. The slide 9 is held in its working position by a locking pin 39 which engages in a hole in the slide 9. The locking pin 39 is a commercially available pin which is held in a disengaged position by spring force. In order to move the slide into a maintenance position, the bolt 39 is moved into its engaged position against the spring force. The slide 9 is thus free and can be pivoted about the axis of rotation 38 into the maintenance position. This step is preferably carried out when the setting device is in a maintenance position, the guide rod 16 running essentially horizontally to the base.

If a holding plate 1 falls into the chute 26 after being separated, it falls onto the slide 9 and slides lying on the slide 9 into a set position. In the chute 26, it is guided laterally by the boundaries of the chute 26. The holding plate 1 slides coming from the side directly under the fastening device 8. In order to ensure a smooth transition of the holding plate, the slope of the slide 9 decreases in the direction of the setting position. The holding plate 1 thus leaves the slide 9 in its set position parallel to the roof. The holding plate 1 is from the slide 9 of 2D pulled at least one magnet 40, which is arranged in the extension of the slide 9, in the set position and kept free in the set position. The magnet 40 is preferably a permanent magnet.

The elements shown in FIG. 4 form an exchange module 48. The chute 26 is fixedly attached to a module surface 41. The magazine 2 is placed on the chute 26 with the support 3a, 3b and the tensioner 4 and the cam members 6a, 6b and 7. A module surface 41 is connected to the base body 23 of the setting device as simply as possible. Preferably four Allen screws are used, which can be easily loosened. If the screws are loosened, the entire exchange module 48 can be removed from the setting device. Another exchange module, which is matched to a different form of holding plates, can then be placed on the setting device. This means you can react flexibly to new holder plate shapes.

Figures 1 and 5 show a section through a feed device of the fastening elements 12 according to a first embodiment. A fastening element 12, here a screw, is inserted into a downpipe 19. The fastening element 12 slides therein obliquely into a screw funnel 42 which is located within the guide tube 25 for the extension rod 18. The inserted fastening means 12 is held in a waiting position before processing above the holding plate 1, which assumes the setting position, by means of a closure device 14. In this embodiment, the closure device comprises two pressure jaws or slides, which are arranged on opposite sides and press against one another. The distance between them is smaller than the outside diameter of the fastening element. The surfaces of the pressure jaws on which the fastening element 12 comes to rest preferably run slightly obliquely towards one another in the direction of advance of the fastening means. Puncturing the fastener 12 through the closure device 14 is thus facilitated. If the fastening device 8 is moved downwards, the extension rod 18 moves with a driving head 17 towards the fastening element 12 which is in the waiting position. Sets the driving head 17 on the ZI

Fastening element 12 and if a force is exerted in the feed direction of the fastening element 12, the pressure jaws of the closure device 14 deflect in order to enable the fastening element 12 to be pushed forward. The pressure jaws are each moved away from the fastening element 12 against a spring force. Alternatively, the closure device 14 could comprise one or more spiral spring elements which project radially into the passage opening of the fastening element 12. If a force is exerted on the spiral spring elements via the fastening element 12, they bend and thus release a sufficiently large diameter for the fastening means 12 to slide through.

In the guide tube 25, a disk 10 is rotatably mounted about an axis of rotation transversely to the direction of advance of the fastening element 12, wherein it projects into the screw funnel 42 in the starting position. If a fastening means 12 is in a waiting position before processing, it deflects the disk 10 in such a way that the disk protrudes from a slot in the guide tube 25. If the fastener 12 is processed and is therefore no longer in the waiting position, the disk 10 swings back about its axis of rotation due to gravity back into its starting position, in which it does not protrude from the slot of the guide tube 25. A user can easily see from the disc 10 whether a fastener is inserted or not. In order to improve the effect even more, the pane 10 is preferably provided with a corresponding signal color.

Figure 6 shows the container 11 for the fasteners 12. The container preferably comprises a cylindrical pot 11, in which a bottom 13 is adjustable in height relative to the cylindrical container wall and can be fixed in the adjustment positions. The bottom 13 preferably adapts to the inner shape of the container 11. An adjustment rod 43 protrudes downward from the underside of the base 13. A clamping part 44 is attached to the underside of the container 1 1. The adjustment rod 43 runs through an opening in the lower part of the container 11 and in the clamping part 44 and is guided therein. The adjusting rod 43 and the clamping part 44 with its passage hole are preferably attached centrally to the bottom 13. Across the through hole in 2.2.

Clamping part 44 is provided with a thread into which a clamping bolt 45 can be screwed and presses essentially vertically onto the adjusting rod 43. When setting a desired floor height in the container 11, the adjustment rod 43 is pushed to the desired height with the base 13 and then the adjustment rod 43 is clamped by screwing in the clamping bolt 45. A stop plate 46 which is connected to the underside of the adjusting rod 43 forms a stop for the height adjustment. The reservoir 1 1 can thus be set for different fasteners.

A further development of the invention is shown in FIGS. 7 to 11. They show a magazine 50 with a separating device for the fastening elements 12. A setting device with a magazine 2.50 and a separating device both for the holding plate 1 and for the fastening elements 12 is particularly preferred. Such a preferred embodiment is shown in FIG. 7. The fastening elements 12 are inserted into the magazine 50 at a magazine inlet 59. On an inclined plane 60, the fastening elements 12 slide towards a magazine outlet 57. The separating device for the fastening elements 12, in particular two closure elements 52, 53, is located at the magazine outlet 57. If a fastening element 12 is singled out of the magazine 50, it slips into the feed shaft 51 for the fastening elements 12 into the waiting position above a separated holding plate 1 Embodiment according to Figures 1 to 6, the fastener 12 is held by the closure device 14 in the waiting position. The movements of the closure elements 52, 53 are controlled by the actuating means 16. The movements of the separating device of the fastening elements 12 and the movements of the separating device of the holding plate 1 are coordinated with one another by a suitable arrangement of the curve members along the control path of the actuating means 16.

Figure 8 shows a partially sectioned top view of the setting device. The magazine 50 is arranged curved in order to accommodate as large a number of fastening elements 12 as possible. The magazine 50 does not protrude laterally beyond the base body 23 of the setting device. The magazine 50 comprises two vertically arranged sheets 50a, 50b which are arranged essentially parallel to one another. A gap is formed between them through which the fastening elements 12 can slide. The upper width of the gap is smaller than the head of a fastening element 12. The fastening elements 12 thus hang on their heads between the vertical plates 50a, 50b. The side panel 50a is longer at the magazine inlet 59 than the other panel 50b. The fastening elements 12 to be inserted are placed on the protruding, longer sheet 50 a and can be easily inserted into the magazine 50. The other side plate 50b is angled slightly outwards, so that the gap widens and an insertion funnel is formed in the gap. A spring steel sheet 58, in particular a leaf spring 58, is mounted on the angled area of the other sheet 50b. A freely resilient end 58a of the leaf spring 58 points obliquely in the feed direction into the gap which is formed between the sheets 50a, 50b. When a fastening element 12 is inserted into the magazine 50, the resilient region 58a of the leaf spring 58 is pressed in the direction of the side plate 50b and releases the magazine inlet 59. After the fastening element 12 has been inserted into the magazine 50, the resilient region 58a springs back into its starting position and closes the magazine inlet 59. The leaf spring 58 acts as a barb, so that an unintentional falling out of a fastening element 12 from the magazine inlet 59 is prevented.

FIG. 9 shows the magazine 50 and the separating device of the fastening elements 12 in detail. The side plates 50a, 50b extend from the base plate 23 to an upper edge which is designed as an inclined plane 60. The fastening elements 12 are thus on both sides of the sheets 50a. 50b guided in magazine 50. In order to facilitate the insertion of the fastening elements 12 into the magazine 50, the sheets 50a, 50b at the magazine inlet 59 have only a small height.

The closure elements 52, 53 are formed by narrow metal sheets which close or release the magazine outlet 57 from opposite sides. The closure elements 52, 53 preferably move on a circular path about a pivot axis 55. A displacement movement transversely to the conveying direction of the fastening elements 12 would also be conceivable, but this is not shown in the figure. As in As shown in FIG. 9, the closure elements 52, 53 are preferably firmly connected to one another via a pivot element 56. There is a rigid connection between the closure elements 52, 53. The pivot axis 55 about which the pivot element 56 rotates is preferably arranged above the fastening elements 12 and is perpendicular to the axis of the fastening elements 12. The pivot element 56 is preferably articulated by two pivot arms 54. The pivot arms 54a, 54b protrude into the control path of the cam 5, which is connected to the rod 16.

The pivot element 56 preferably has two stable positions. In Figure 9, the pivot member 56 is shown in its pivoted position to the left. The magazine outlet 57 is only closed by the closure element 53. The closure element 52 releases the magazine outlet 57 in this position. The swivel element 56 is held in its two stable positions by a compression spring 61. In the second stable position, which is not shown in FIG. 9, the pivot element 56 is pivoted to the right, so that the closure element 52 closes the magazine outlet 57 and the closure element 53 releases the magazine outlet 57.

The pivot element 56 is fixedly connected to the guide tube 20 for the rod 16 via a connecting piece 62. The connecting piece 62 can also consist of several parts. It is preferably welded to the guide tube 20.

FIG. 10 shows the side view C from FIG. 8. The closure elements 52, 53 engage below the inclined plane 60 of the magazine 50 through the side plates 50a, 50b in the gap of the magazine 50. For this purpose, a recess, preferably a lateral bore 63, is provided in the sheets 50a, 50b. After a fastening element 12 has been separated, it can slide a little further on the inclined plane 60 until it reaches the feed shaft 51 for the fastening elements 12. AES

In FIG. 1 1 it can be seen that the sheets 50b, 50a are bent outwards at a right angle when they pass into the feed shaft 51. They limit the feed shaft 51 to one side. The other sides of the feed shaft 51 are formed by a shaft pipe 65 or a shaft plate 65. The extension rod 18 is guided in the top of the shaft pipe 65. The shaft pipe 65 is fixedly connected to the magazine 50 via shaft pipe screws 64. By loosening the chess tube screws 64, the feed shaft 51 for the fastening elements 12 can be opened, so that any jam of several fastening elements 12 can be easily removed. So that a fastening element 12 does not rebound when it slides into the feed shaft 51, magnets are embedded in the stop side of the feed shaft 51.

It can be seen in FIG. 11 that a front closure element 52 engages in the magazine 50 from the left and a rear closure element 53 from the right. The closure elements 52, 53 are both connected to the pivot element 56 by screws. The pivoting element 56 is therefore not shown in a central position in FIG. 11 in one of its two stable positions. A space is provided between the front closure element 52 and the rear closure element 53, which offers space for a fastening element 12.

If the pivoting element 56 pivots from the position shown in FIG. 11 to its position pivoted to the left, the front closure element 52 opens the magazine outlet 57, the rear closure element 53 also closing the magazine outlet 57. The rear closure element 53 engages between the foremost fastening element 12 and the rest of the row of fastening elements 12 in the magazine 50. In the swiveled position of the swivel element 56, the foremost fastening element 12 is separated and slips into the feed shaft 51. If the swivel element 56 is moved from its swiveled position to the right swiveled position, the closure element 52 initially closes the magazine outlet 57, whereupon the closure element 52 releases the magazine outlet 57. The row of fastening elements 12 slides forward by one position until the fastening element 12, which is now at the front the front closure element 52 rests. When swiveling back from the swiveled position of the swivel element 56 into its swiveled position to the left, the rear closure element 53 engages between the foremost fastening element 12 and the rest of the fastening elements 12 and retains the row of fastening elements 12 when the foremost fastening element 12 is isolated. In order to facilitate the engagement of the rear closure element 53 between two fastening elements 12, the rear closure element 53 is pointed in the direction of engagement between the fastening elements 12.

The operation of the setting device is explained below. When the device is transported, the engagement member 5 is in its lower displacement position. The rod 16 is under a spring tension, which pushes it upwards towards the upper displacement position. In the lower position it is held by a locking pin, which can be designed similarly to the locking pin 39 that holds the slide 9. In this position, the holding plates 1 are inserted into the magazine 2. When the magazine 2 is loaded for the first time, the tensioner 4 is released once by hand, so that a holding plate 1 rests on the support 3 and the second bottom holding plate 1 is clamped in the magazine 2 by the tensioner 4. In order to facilitate the operation of the tensioner 4 by hand, a gripping part 47 is provided, which is attached to the cam member 7 of the tensioner or the lever 29.

If the holding plate 1 is inserted into the magazine 2 in this way, the locking pin holding the rod 16 is released and the rod 16 can be moved into the upper position with the aid of the spring force. The fastening device 8 and the engagement member 5 also move into the upper position. The engagement member 5 initially runs from below the curve member 7 of the tensioner 4. The holding plates 1 thus all rest on the support 3 and after the cam member 7 has passed, the tensioner 4 clamps the second lowest mounting plate 1 in the magazine 2. Then the engagement member 5 passes through the cam members 6a and 6b of the support parts 3a and 3b and pushes them apart , so that the lowest holding plate 1 is released. The isolated holding plate 1 falls into the chute 26 and onto the slide 9, on which it is transferred to its set position. When the rod 16 has reached its upper position, a 7

Fastening element 12 is removed from the storage container 11 and inserted into the downpipe 19. The fastening element 12 is held by the closure device 14 in a waiting position above the holding plate 1. The setting device is now in a starting position for a fastening process.

By slightly tilting the setting device on the hand part 21 around the wheels 24, the setting device on the wheels 24 can be moved to the desired location. The fastening device 8, which can be a commercially available screwing unit, is set in rotation or runs continuously during the entire setting process. The rod 16 and thus also the fastening device 8 are moved downward against the spring force via the hand part 21. The driving head 17 is placed on the head of the fastening element 12 and pushes the fastening means 12 through the closure device 14 and through the hole in the holding plate 1 and screws the fastening means 12 into the roofing membrane. In the last section of the fastening process, the fastening means 12 takes the holding plate 1 with its head and fastens it to the roofing membrane.

Simultaneously with the downward movement of the fastening device 8, the engagement member 5 first passes through the curve members 6a and 6b of the support parts 3a and 3b. During this movement, no holding plate 1 lies on the support 3a, 3b in the lowest position. After passing through the curve members 6a and 6b, the support 3 a, 3 b closes again. Subsequently, the engaging member 5 passes through the cam member 7 of the tensioner 4, so that the tensioner 4 releases the stack of the holding plates 1 and the holding plates 1 due to gravity slide down one position and thus onto the support 3a, 3b. After the fastening means have been fastened to the roofing membrane, the rod 16 with the fastening device 8 and the engaging member 5 is moved back into the upper starting position. During this movement, the engaging member 5 first runs past the cam member 7 of the tensioner 4 and then past the cam members 6a and 6b of the support parts 3a and 3b. The lowermost support plate 1 lying on top is released and falls in the chute 26 onto the slide 9 and slips into the set position. After inserting a next fastening element 12 into the downpipe 19, the setting device is ready for 2 ©

the next fastening process. With the upward movement of the engaging member 5, a holding plate 1 is thus always separated and released for transferring into the set position. When the engagement member 5 moves downward, the stack of holding plates 1 slides down one position, and no holding plate 1 is separated.

LIST OF REFERENCE NUMBERS

1 holding plate

2 magazine

3rd Edition

Stretcher

engaging member

Curved link of the edition

Curved link of the tensioner

fastening device

slide

10 mechanical display

11 fastener containers

12 Fastening means 3 Bottom of the container 4 Closing device 5 Tracing element 6 Rod 7 Driving head 8 Extension rod 9 Pants 0 Guide tube for rod 16 1 Hand part 2 Slot in guide tube 3 Base body bikes

Guide tube for extension rod 18

chute

feather

joint

lever

Guide bar Guide points for 30

threaded bolt

Base plate of the magazine

mainspring

Axis of rotation of the slide

Indexing plungers

magnet

module area

screw hopper

control rod

clamping part

clamping bolts

stop plate

gripping part

module

slots

Fastener magazine

Feeder shaft for fasteners, front closure element

closure element

swivel arm

swivel axis

pivoting element

hopper outlet

leaf spring OO

Magazine inlet inclined plane

compression spring

Side hole connector

Manhole pipe / manhole sheet

Shaft tube screws

Claims

3 / Setting device for setting holding plates

1. Setting device for setting holding plates (1) for fastening roofing sheets on flat roofs, the setting device comprising: a) a magazine (2) for a stack of holding plates (1), b) a support that can be moved relative to the magazine (2) ( 3 a, 3 b) for the stack of holding plates (1), c) a tensioner (4) arranged on the side of the stack, which clamps or releases at least one holding plate (1), d) a chute (26) for the transfer of one of the support (3a, 3b) falling, isolated holding plate (1) in a setting position parallel to the roof and e) a fastening device (8) for fastening the holding plate (1) in the setting position on the roofing membrane, characterized in that d) the Movements of the support (3a, 3b) and the tensioner (4) can be controlled by at least one cam mechanism (5, 6a, 6b; 5, 7).

2. Setting device according to the preceding claim, characterized in that a

Cam gear (5, 6a, 6b) of the support (3a, 3b) and a cam gear (5, 7) of the tensioner (4) can be articulated by a common actuating means (16) and the sequence of movements of the support (3a, 3b) and the tensioner (4) by the arrangement of cam members (6a, 6b, 7) of the cam gear (5, 6a, 6b, 7) is determined.

3. Setting device according to one of the preceding claims, characterized in that the cam mechanism (5, 6a, 6b) of the support (3a, 3b) fixed to the support (3a, 3b) and the cam mechanism (5, 7) of the tensioner (4th ) firmly connected to the tensioner (4) is, the cam mechanism (5. 6a. 6b) of the support (3a, 3b) and the support (3a, 3b) and the cam mechanism (5, 7) of the tensioner (4) and the tensioner (4) each form an angle ,

4. Setting device according to claim 2, characterized in that the cam member (6a, 6b) of the support (3a, 3b) and the cam member (7) of the tensioner (4) are arranged one behind the other along a control path of the engagement member (5).

5. Setting device according to one of the preceding claims, characterized in that an engagement member (5) of the cam mechanism (5, 6a, 6b; 5, 7) is formed by a cam (5) which is linearly displaceable and at least one sensing member (15 ) having.

6. Setting device according to one of the preceding claims, characterized in that the support (3a, 3b) has at least two support parts (3a, 3b), each of which is connected to its own cam member (6a, 6b), which along a control path of an engagement member (5) are attached in such a way that the support parts (3a, 3b) are moved away from one another for the release of an overlying holding plate (1).

7. Setting device according to one of the preceding claims, characterized in that control curves of cam members (6a, 6b), which are simultaneously connected to the common engagement member (5), are arranged offset in a direction transverse to the control path of the engagement member (5).

8. Setting device according to one of the preceding claims, characterized in that with a linearly displaceable rod (16), the fastening device (8) and an engagement member (5) of the cam mechanism (5, 6a, 6b; 5, 7) are firmly connected and one The engagement member (5) engages in the cam mechanism and a fastening element (12) with the fastening device (8) is driven into the roofing membrane by displacing the rod (16).

9. Setting device according to one of the preceding claims, characterized in that a slide (9) arranged in the chute (26) can be moved into a maintenance position different from a working position.

10. Setzvomchtung according to any one of the preceding claims, characterized in that an exchange module comprises the magazine (2), the support (3a, 3b), the tensioner (4) and a chute (26) with a slide (9), and that Module for the use of holding plates of other shapes can be changed as a whole.

11. Setzvomchtung for setting holding plates for fastening roofing membranes on flat roofs, in particular according to claim 1, wherein the holding plates (1) are connected to the flat roof by means of fastening elements (12), the setting device comprising: a) a magazine (50) for the Fastening elements (12), the fastening elements (12) being arranged in a row in the magazine (50), b) a magazine outlet (57) to which the fastening elements (12) in the magazine (50) are pressed, c) a separating device for Separation of the fastening elements (12) from the magazine (50) d) and a feed chute (51) which guides an isolated fastening element (12) to a holding plate (1) in a manner suitable for installation, characterized in that e) the separation device has two closure elements (52, 53) for the magazine outlet (57), wherein f) the closure elements (52, 53) are arranged one behind the other in the direction of the row of fastening elements (12), d ass engages a rear fastener (53) between a front fastener (12) and a remainder of the row of fasteners (12) when a front fastener (52) releases the front fastener (12).

12. Setting device according to the preceding claim, characterized in that the movements of the closure elements (52, 53) are controlled by at least one cam mechanism (5, 54).

13. Setting device according to one of claims 14 and 15, characterized in that an engagement member (5) of the cam mechanism (5, 54) is formed by a cam which is connected to a linearly displaceable rod (16).

14. Setzvomchtung according to one of claims 14 to 17, characterized in that the closure elements (52, 53) are moved transversely to the conveying direction of the fastening elements (12).

15. Setting device according to one of claims 14 to 18, characterized in that the closure elements (52, 53) are rigidly connected to one another.

16. Setting device according to one of claims 14 to 19, characterized in that the fastening elements (12) are pressed on an inclined plane in the magazine 50 towards the outlet of the magazine 50.