Setting tool

Abstract

Setting tool (1) for the mechanical fastening of roofing membranes and insulation materials on flat roofs by means of fastening elements (50, 50a), each consisting of a plastic holder (51, 51a) with a load distribution plate (53, 53a) with a hollow shaft (54, 54a) and a screw (52) which is recessed in the hollow shaft (54, 54a) and anchored in the supporting shell of a flat roof and which are fed from at least one magazine (30) by means of a separating device (40) each individually to a template (60) in a position suitable for assembly, in which they are gripped by a rotary drive means (17) of a lifting device (10) which can be raised and lowered in the screw-in axis (20) and has a screwdriver (15) attached thereto, wherein the lifting device (10) which can be raised and lowered performs adjusting movements for the components involved in the separation and transfer of a fastening element (50, 50a) parts of the setting tool (1) are derived, characterized by that a feed module (70) is arranged between the separating device (40) and the template (60), in which at least one slide (73) is arranged, which pushes the fastening element (50, 50a) towards the template (60) and is movable on a linear guide (75), wherein the feed module (70) comprises two slide housings (71) which are adjacent to one another and enclose a conveying gap (88) between them, so that the shaft of a fastening element can be guided through between the two housing parts, and which each contain a slide (73), wherein both slides (73) are moved synchronously with each other depending on the lifting movement of the screwdriver (15), in that each slide (73) is connected to an adjusting tab (80) which can be raised and lowered depending on the lifting movement of the screwdriver (15).

Description

[0001] The invention relates to a setting tool for the mechanical fastening of roofing membranes and insulation materials on flat roofs by means of fastening elements according to the preamble of claim 1.

[0002] It is well known from the state of the art to mechanically secure insulation and sealing materials on flat roofs against wind suction forces. In contrast to securing with ballast or adhesive, mechanical fastening involves anchoring the roof structure to the supporting roof substrate using fasteners. The supporting shell can be made of trapezoidal steel sheets, wood, or concrete, for example.

[0003] For mechanical fastening, so-called plastic screw combinations are preferred. These consist of a plastic holder with a hollow shaft and a molded or adapted head plate, as well as a screw inserted into the hollow shaft. The screw geometry is designed for the specific roof substrate. If necessary, the screw is also used together with a dowel.

[0004] For roof waterproofing, plastic or bitumen membranes are laid parallel to one another and mechanically secured with the aforementioned fasteners. The fasteners penetrate the waterproofing membranes, for example, along their edges, penetrating the underlying insulation material and anchoring the fastener screw in the supporting shell that supports the roof structure. To protect the resulting perforation of the roof membrane at the edges from moisture penetration, the adjacent roof membrane is laid parallel to the membrane so that it overlaps the edge, and the seam is welded.

[0005] To efficiently carry out these tasks, setting tools are used for mechanical fastening. Such setting tools typically comprise a magazine in which a large number of fasteners are stored and then individually selected from the magazine and positioned for screwing. This is achieved by deriving the movement sequences of a screwdriver that can be raised and lowered on the setting tool, with which the fasteners are driven into the roof substrate. Setting tools are also known in which the fasteners are fed manually one at a time. Numerous semi- and fully automatic processes are known for all of these devices.

[0006] DE 195 38 812 B4 describes a device for fastening roofing and insulation material to flat roofs. Its design essentially corresponds to the device described above. A magazine for fastening elements with three register compartments is assigned a stationary separating wheel, above which the magazine register currently in use is positioned. The lowest fastening element is picked up by the separating device. After the separating process, the fastening element falls into the screw-in position of a template and is gripped by a descending screwdriver.The fastener used in this tool is a plastic screw combination consisting of a plastic holder with a large head plate that acts as a load distribution plate and a molded hollow shaft, as well as a screw that is countersunk into the plastic holder and selected for the specific roof substrate. After separation, this fastener lies freely on the template, ready to be driven into the roof substrate by the screwdriver.

[0007] DE 199 21 426 C1 describes a setting tool for screwing in fasteners, in particular for fastening insulation material on flat roofs. This setting tool has a chassis so that the tool can be rolled to the individual fastening points. A large number of fasteners are stored loosely in a magazine arranged on the setting tool. A commercially available electric screwdriver that can be raised and lowered is attached to a lifting device. During its lifting movement, this screwdriver separates the lowest fastener stored in the magazine from the jostling stream of fasteners. After this separation process, the fastener is moved to a position below the screwdriver suitable for screwing in, where it is gripped and driven into the roof substrate.The screwdriver is usually lowered manually by the operator, who pushes the lifting mechanism downwards using two handles on either side. The screwdriver returns to the top dead center position by a counterpressure spring located in the stroke.

[0008] DE 10 2012 022 574 A1 describes a fastening element consisting of a plastic holder with a hollow shaft and molded load distribution plate, as well as a screw recessed into the hollow shaft. This fastening element is suitable for the mechanical fastening of virtually all types of waterproofing. This can include both new waterproofing and old, cured bitumen membranes. The shaft of the plastic holder has a post-shaped design that facilitates penetration of old, cured waterproofing. In such cases, however, it can also be advantageous to rotate not only the screw but also the plastic holder itself.

[0009] EP 0 621 108 A1 describes a setting tool for individually dispensing stackable load distribution plates for roofing work from a stack of similar load distribution plates and a drop-in unit for individual screws, in which a load distribution plate and a screw are each brought separately to a common screwing-in position, where they are gripped by a screwdriver and screwed into the roof substrate. The load distribution plate used in this tool is a flat component without a shaft. A flat washer does not change its flat support even when the tool is on a sloping roof. The screw used is also brought separately into the screwing-in position. Here, no separation takes place; instead, the screws are thrown in individually by hand and reach the screwing-in position directly via the downpipe without any external interference.

[0010] As with manual insertion of the screw, there are no interference factors to consider between the separation of the load distribution plates and their transfer to the screwing position. The geometry of the load distribution plate does not allow its position to change due to gravity, which could cause malfunctions in the setting tool.

[0011] EP 1 183 430 B1 shows a setting tool in which fastening elements are handled in which the screws are already inserted into a load distribution plate with a shaft. Here, too, there is the problem of controlled feeding of the fastening element from the magazine to the screwing-in position. If the fastening element described in EP 1 183 430 B1 is also gripped by pincer grippers in the screwing-in position and held by these until the setting process is completed, there is a risk during the period in which the fastening element falls from the magazine onto the grippers that the fastening element will not align correctly for screwing and will be gripped by the screwdriver in a less than ideal position. This can lead to incorrect fastening and, in the worst case, to a blockage in the setting tool.

[0012] In practice, the specialist responsible for roof waterproofing must be able to perform the mechanical fastening of the roof structure efficiently and cost-effectively. This means having both functional fastening elements at their disposal and being able to use suitable equipment for their installation that is both simple and trouble-free to use. This includes being able to install different fastening elements with a single tool, avoiding the need for constant tool changes.

[0013] This multifunctionality requires that the setting tool is designed in such a way that it can be used with both fastening elements with a round or oval head plate, where only the screw is rotated, and fastening elements with a round head plate, which are themselves subjected to rotation in addition to the screw, without any conversion or at least with only minimal conversion effort.

[0014] Since the individual functional parts involved in the setting process in a setting tool and their adjustment movements have to be coordinated with one another depending on the screwdriver's feed, this also affects the timely and synchronized transfer of the fasteners from one tool module to the next. This can lead to disruptions in the transfer of the fastener from the magazine, through the separating device, to the feed. This occurs particularly when the setting tool is used on sloping roofs. On sloping roofs, transfer movements of the fastener, which utilize a falling motion with the help of its own weight, can be disrupted. This sometimes creates the risk that a fastener will not slide into the desired processing position and will therefore not be available for the subsequent work process.If the fastener is fed in too late or if two work steps unintentionally overlap due to delays, this can even lead to a blockage in the setting tool.

[0015] Accordingly, it is an object of the present invention to provide a setting tool in which the fastening elements are subjected to a controlled movement within the tool.

[0016] This object is achieved according to the invention by a setting tool having the features of claim 1. Further features of the invention are described in the dependent claims.

[0017] According to the invention, a setting tool for the mechanical fastening of roofing membranes and insulation materials on flat roofs by means of fastening elements is proposed, which each consist of a plastic holder with a load distribution plate with a hollow shaft and a screw which is countersunk in the hollow shaft and anchored in the supporting shell of the flat roof and which are each individually separated from at least one magazine by means of a separating device and fed to a template in a position suitable for assembly, in which they are gripped by a rotary drive means of a lifting device which can be raised and lowered in the screw-in axis and has a screwdriver attached to it, wherein adjusting movements for the device parts involved in the separation and transfer of the fastening elements in the setting tool are derived from the lifting device which can be raised and lowered.

[0018] The setting tool according to the invention is characterized in that a feed module is arranged between the separating device and the template, in which at least one slider is arranged which urges the fastening element towards the template and is movable on a linear guide.

[0019] The invention subjects the separated fastener to a forced feed. This occurs via at least one slider of the feed module according to the invention, which is / are activated by the lifting movements of the screwdriver and thereby guides the fasteners into the correct assembly position in the template. As soon as the fastener has been separated from the magazine, it is forced into the template with the help of the feed module. The transfer of the fastener is therefore independent of gravity, so that the device can be used in all positions and orientations and the transfer of a fastener is not dependent on it sliding to the next position under its own weight. The feed module also makes it possible to retrofit existing devices with it in order to optimize their functional reliability.

[0020] The invention provides that the feed module consists of two adjacent slide housings enclosing a conveying gap between them, each housing containing a slide. Both slides are moved synchronously with each other depending on the stroke of the screwdriver. The housing division makes it possible to create a conveying gap without requiring further structural modifications to the setting tool. Synchronous control can be achieved by a common control rod, which in turn is operatively connected to the lifting device, a control plate, and / or a clutch.

[0021] The invention provides that each slider is connected to an adjusting plate that can be raised and lowered depending on the lifting movement of the screwdriver. This adjusting plate preferably comprises a bar protruding from the slider housing with a control plate located within the slider housing. A control groove is machined into the control plate, into which a control pin seated on the slider engages. The bars of the adjusting plates of both sliders are preferably in contact with the lifting device via a common connection, thus ensuring their synchronous movement.

[0022] In another particularly advantageous embodiment of the invention, the control groove is oriented so that it slopes downwards toward the feed path. This forces the slide, which pushes the head plate of the fastening element in front of it, in this direction. The shaft of the fastening element hangs and protrudes through the feed gap.

[0023] In another particularly advantageous embodiment of the invention, the adjusting plate is guided on two parallel and vertically aligned rails. This ensures smooth movement and allows for easily accessible lubrication.

[0024] In another particularly advantageous embodiment of the invention, an angular locking lever is arranged on the vertically movable adjusting bracket, which has a cross plate at its free end that closes the ejection window of the slide housing. When the head plate of the fastening element is located in the receiving space in front of the slide, the cross plate closes the ejection window in the slide housing, so that the fastening element remains trapped therein even during a tilting or moving movement. When the adjusting bracket is raised and the slider moves with it, the cross plate also moves upward, opening the ejection window.

[0025] In another particularly advantageous embodiment of the invention, the control plate and / or the feed module are operatively connected to a coupling. This advantageously allows the continuous lowering movement of the lifting device to be temporarily disabled relative to the feed module.

[0026] In a particularly preferred embodiment of the invention, the coupling function is achieved in that the coupling is attached to the setting tool in a height-adjustable manner and has a pushbutton, in the travel path of which a deflector is arranged, which is permanently attached to the setting tool, i.e., in particular, to its frame. This allows a specific travel distance of the coupling, during which the deflector can exert an adjusting movement on the feed module. Only when the desired movement sequences have been completed does the pushbutton hit the deflector and move transversely.

[0027] In this context, the button can be spring-loaded and have a driver on its end remote from the deflector, which can be engaged and disengaged from the control plate. During its downward movement, the coupling button also performs a transverse movement orthogonal to the screw-in axis due to the deflector. This separates the driver from the control plate, and the vertical movements of the coupling and control plate become independent of each other.

[0028] There are various possibilities for advantageously embodying and developing the teachings of the present invention. Reference is made, on the one hand, to the subordinate claims and, on the other hand, to the following explanation of an embodiment of the invention with reference to the drawings.

[0029] The drawings show: Fig. 1 a perspective and partly schematic representation of a setting tool, which explains the essential structure of the setting tool, Fig. 2 an example of a first fastening element that can be processed in the setting tool according to the invention, Fig. 3 an example of another fastening element that can be processed in the setting tool according to the invention in a perspective view from above, Fig. 4 a perspective view of the fastening element according to Fig. 3 from the bottom, Fig. 5 the fastening element Fig. 3 and Fig. 4 in a sectional view of the hollow shaft in the area of ​​the holder tip, Fig. 6 a cross-section of a roof structure, Fig. 7 that in Fig. 6 Detail marked VII in an enlargement, Fig. 8 a valve housing of the feed module in closed state and non-activated valve, Fig. 9 which in Fig. 8 reproduced situation with open valve housing, Fig. 10 the opened valve housing with the valve in the activated position and Fig. 11 the control plate with the clutch.

[0030] The Fig. 1 schematically depicted setting tool 1 consists of a chassis 5 with rollers 6, 7 to move the setting tool to the respective fastening points. On the chassis 5 is a lifting device 10, to which a screwdriver 15 is mounted. The screwdriver 15 can be raised and lowered by means of the lifting device 10, whereby the lifting device 10 can be operated manually or with the aid of a motor. In the present case, the lifting device has two handles 11, 12, by means of which manual operation is possible. The screw rotating rod 17 inserted into the screwdriver 15 (shown hidden) is in the screw-in axis 20 of the respective fastening element 50 to be mounted (see Fig. 2-4). The lifting device 10 consists of a lifting carriage 13, which can be raised and lowered along vertical rods 14. A lifting column 16 is arranged on the lifting carriage 13 and is positioned in the screw-in axis 20. In the upper area of ​​the lifting column 16, a receptacle 22 (shown hidden) is provided for the installation of the screwdriver 15, which projects through the hollow cylindrical lifting column 16 with its screw rod 17. The telescopically retractable lifting column 16 engages with a driver in a control plate 65 ( Fig. 11) so that it lowers together with the lifting column 16 and / or can perform corresponding transverse movements.

[0031] Furthermore, a magazine 30 is arranged on the chassis 5, in which a plurality of fastening elements 50 can be stored, which are arranged loosely one above the other in several adjacent registers 31, 32, 33. Below the magazine 30 is a separating device 40, shown schematically here, with the aid of which one fastening element 50 is separated from the magazine stream at a time. Separation occurs as a function of the upward and downward movement of the lifting device 10, from which corresponding adjustment movements are derived.

[0032] The separated fastening element 50 is guided to a template 60, also shown schematically here, in which it is positioned for assembly so that it can be grasped by the screw rotating rod 17 of the downwardly moving screwdriver 15. To ensure the trouble-free transfer of the fastening element 50 between the separating device 40 and the template 60, a feed module 70, also shown schematically here, is used according to the invention. The lifting movements of the screwdriver 15, or the lifting device 10 to which it is attached, are also used and diverted accordingly for its adjusting movements.In this case, means are preferably also used which cause a delay in the movement of certain device parts in order to synchronise or coordinate the functional sequences between the lifting device 10, the separating device 40, the feed module 70 and the template 60 up to the release of the fastening element 50 from the template 60 for the purpose of completing the setting process.

[0033] The Fig. 2 shows a first fastening element 50 that can be used in the setting tool according to the invention. The fastening element 50 comprises a plastic holder 51 and a screw 52. The plastic holder 51 has a head plate designed as a load distribution plate 53 and a hollow shaft 54 ​​formed thereon with an inner channel 55 in which the screw 52 is countersunk. The inner channel 55 of the hollow shaft 54 ​​is narrowed near the shaft tip 56 and forms a support shoulder 57 for the screw head 52a. The inner channel 55, which completely penetrates the plastic holder 51, creates both an inlet opening 58 in the area of ​​the load distribution plate 53 and an outlet opening 59 in the shaft tip 56, from which the screw shaft 52b, bearing a thread 52c, protrudes from the plastic holder 51. At its free end, the screw 52 carries a drill bit 52d, which makes it suitable for anchoring in a roof substrate made of trapezoidal steel sheets.

[0034] The Fig. Figures 3 to 5 show a modified fastening element 50a, which is used particularly for old, hardened and thus difficult-to-penetrate roofing membranes. This may require not only a tightening movement of the screw inserted into the plastic holder, but also the rotation of the plastic holder itself. In its basic design, the fastening element 50a corresponds to the one shown in Fig. 2 and also comprises a plastic holder 51a and a screw 52. The screw 52 is only in Fig. 5. The plastic holder 51a has a head plate designed as a load distribution plate 53a and a hollow shaft 54a formed thereon with an inner channel 55a in which the screw 52 is countersunk. The inner channel 55a of the hollow shaft 54a is narrowed near the shaft tip 56a by means of a shoulder and forms a support shoulder 57a for the screw head 52a. The screw shaft 52b has a thread 52c and a drill bit 52d, whereby this screw 52 is also suitable for anchoring in roof substrates made of trapezoidal steel sheeting. Compared to the Fig. The fastening element 50a differs from the fastening element 50 shown in Figure 2 in that the shaft has an angular, particularly polygonal cross-section and the shaft tip is pole-shaped. A further difference is that the plastic holder in the inner channel near the head plate is provided with a force application 49 (see Fig. 3) to also enable the plastic holder 51a to rotate. For this purpose, the screw rotating rod 17 (not shown here) not only has a rotary drive for the screw, but also, slightly higher up, an external hexagon, which creates a positive connection with the force application 49.

[0035] The advantage of a plastic screw combination as such is, among other things, that a high roof structure can be bridged by the plastic holder and a relatively short screw can be used.

[0036] An installation situation of the plastic holder 50 according to Fig. 2 is in the Fig. 6 and Fig. 7 is reproduced.

[0037] These show a cross-section of a roof structure. The supporting roof substrate 90 is a trapezoidal steel sheet. This has alternating parallel high and low beads 91, 92. The insulating materials 94 used for insulation rest on the sheet apex 93 of the high beads 91. A first lower roofing membrane 95a is penetrated at its edge area 96 by the fastening elements 50, which pierce the underlying insulating material 94 and the vapor barrier 97 arranged at the lowest point and anchor themselves in the sheet apex 93 of the supporting roof substrate 90. The vapor barrier 97 is the layer for limiting water vapor diffusion. The fastening row is then overlapped by the parallel upper roofing membrane 95, and the seam 98 is welded, thereby tightly sealing the previously created perforation in the underlying roofing membrane 95a.

[0038] In Fig. 7 is the Fig. 6 shows an enlarged view of the detail marked VII. The insulating material 94 is largely pressure-resistant. This means that compression due to foot traffic is hardly possible or only occurs to a negligible extent due to the nature of the material. The enlarged view clearly shows how the screw 52, ​​which is countersunk in the inner channel 55 of the plastic holder 51, rests with its screw head 52a on the support shoulder 57. With its threaded shaft 52b, the screw 52 emerges from the shaft tip 56 of the plastic holder 51 and cuts through the sheet apex 93 of the trapezoidal steel sheet with its drill bit 52d. For this purpose, the screw 52 is tightened during the setting process of the fastening element 50 by means of the Fig. 1 and subjected to an axially acting compressive force. During assembly of the fastening element 50 using the setting tool, the advance of the screw 52 is effected by lowering the screwdriver 15 located on the setting tool.

[0039] Both in the Fig. 2 as well as in the Fig. During operation of the fastening element 50 or 50a shown in Figures 3 to 5, a screw rotating rod (not shown in detail here) is inserted into the fastening element 50 or 50a. This rod engages the screw's cross-slot bed with its rotary drive, for example, a Phillips-head blade. This causes the screw 52 to rotate and cut into the underlying trapezoidal steel sheet.

[0040] The requirement to process a variety of fastener types in a single tool also places increased demands on the tool's design. It must be ensured that the setting tool can handle the multitude of fasteners, even of different designs, without problems. This applies not only to the flawless setting process itself, but also to the flow of fasteners within the tool's components.

[0041] While the device has known units such as a lifting device, magazine, separation and feed, according to the invention the setting device is additionally provided with a feed module 70 as a further component.

[0042] For this purpose, the feed module 70 is installed between the separating device 40 and the template 60 and transfers a fastening element removed from the magazine into the assembly position within the template 60 in a controlled manner. This completely eliminates the possibility of incorrect fastenings.

[0043] The Fig. 8 to 10 show this feed module 70 in different operating positions. While the Fig. 8 and Fig. 9 shows the starting position in which a fastener can be accommodated, the Fig. 10 the second position, after a fastener located therein has already been ejected. Both positions can be recognized by the position of the bar 82, which is either partially retracted into the housing ( Fig. 8 and Fig. 9) or has been extended from it ( Fig. 10).

[0044] The Fig. The feed module 70 shown in Figures 8 to 10 consists of two slide housings 71 arranged parallel to one another, which are arranged below the magazine 30 and the separating device 40 located there. Between the two slide housings 71, which are designed and arranged essentially in mirror image to one another, there is a conveying gap 88 (see Fig. 10) so that the shaft of a fastening element can be guided between both housing parts. Each slide housing 71 accommodates a slide 73, which is received on a linear guide 75. The slide housing 71 comprises two side walls 71a, 71b, a front side 71c, a rear wall 71d, and a housing cover 71e and forms a largely enclosed space for the movable components accommodated therein. The bottom 71f of the slide housing 71, however, is preferably open. Likewise, the housing cover 71e has at least one opening 76. In the rear wall 71d closest to the feed, there is an ejection window 77. The ejection window 77 is a U-shaped notch open toward the conveying gap 88, and together with the window of the adjacent housing, has a clear width approximately corresponding to the size of the head plate of the fastening element. As shown in the Fig. 8 and Fig. 9, a receiving space 78 remains between the slide 73 and the ejection window 77, in which space remains for the head plate 53 of a fastening element, so that this comes to lie in front of the slide 73.

[0045] The encapsulated linear guide 75 thus accommodated in the slide housing 71 consists of two bars 75a, 75b, arranged one above the other, with a circular cylindrical cross-section, which penetrate the slide 73. The linear guide 75 extends from the front side 71c to the rear wall 71d of the slide housing 71, which is close to the template 60. The travel path of the slide 73 is also limited by the front side and rear wall enclosing the slide housing 71.

[0046] A vertically movable adjusting bracket 80 is inserted between the linear guide 75 and the outer side wall 71a of the slide housing 71, which is guided on two parallel and vertically aligned rails 81, 81a.

[0047] The control tab 80 comprises a bar 82 protruding from the housing cover 71e with a control plate 83 located within the slide housing 71. A control groove 84 is formed in the control plate 83, into which a control pin, which is concealed here and sits on the slide 73, engages. Furthermore, an angled locking lever 85 with a cross plate 86 is located on the bar 82. In the rest position, this closes the ejection window 77 located on the rear of the housing above the linear guide.

[0048] The control groove 84 slopes downwards towards the ejection window 77, so that the slide 73 is forced to move in the direction of the ejection window 77 when the control plate 83 moves upwards.

[0049] The strips 82 of both slide housings are connected to the lifting device, which also has an actuating mechanism that activates the separating device below the magazine and, on the other hand, operates the slides in the slide housings. This is done by means of a coupling 42, which is Fig. 11 and transmits the required adjustment movements by deriving the stroke movements of the screwdriver.

[0050] The Fig.11 shows, in addition to the coupling 42, a control plate 65, which is a directly functional part for coordinating or aligning certain movement sequences of the tool modules. The control plate 65 has a recess 67, the oblique or straight inner edges 68 of which form the actual control groove, depending on their course. At the upper left section of the control plate 65 is a notch 69, into which a driver 47 of the coupling 42 engages. The coupling 42 itself can be lowered with the lifting device and comprises a spring-loaded button 43, to the free end of which a rotatable roller 44 is attached, into the downward travel path of which a deflector 45, which is permanently mounted on the setting tool and has a sloping sliding surface 46, projects.

[0051] As the lifting device is lowered, the control plate 65 is also lowered. Since the driver 47 of the coupling 42 sits in the notch 69 of the control plate 65, both parts move synchronously. At the same time, the slide 73 in the feed module 70 is moved away from the template 60, so that the receiving space 78 in front of the slide 73 is released for the fastening element 50 cut from the separating device 40.

[0052] After the button 43 of the coupling 42, with its roller 44, strikes the inclined surface 46 of the deflector 45, the driver 47 is guided out of the recess 69 and the positive connection is separated from the control plate 65—and thus from the lifting device 10. The lifting device 10 then moves further downwards together with the control plate 65, the separating device 40 is activated, and a fastening element 50 or 50a is brought into the receiving space 78 in front of the slides 73. When the lifting device 10 is moved upwards, the fastening element 50 / 50a is then struck into the template 60, and the driver 47 engages again in the recess 69.

[0053] The coupling 42 thus offers a further possibility of subjecting device components to the adjusting movements of the lifting device 10 or of temporarily freeing them from them, whereby the coupling itself can also be removed from the movement sequence. List of reference symbols 1 setting tool 5 Chassis 6 rolls out of 5 7 rolls out of 5 10 Lifting device 11 handles out of 10 12 handles of 10 13 pallet trucks out of 10 14 guide rods on 5 for 13 15 screwdrivers 16 lifting columns of 10 17 screw rods 20 screw-in axle 22 shots on 16 for 15 30 Magazine 31 registers of 30 32 registers of 30 33 registers of 30 40 Separation device 42 Clutch 43 buttons of 42 44 role on 43 45 deflectors 46 Inclined surface at 45 47 drivers of 42 49 Power attack in 50a 50 fastening element 50a Fastening element 51 plastic holders 51a plastic holder 52 screw 52a screw head 52b screw shaft 52c thread of 52 52d drill bit of 52 53 load distribution plate on 51 53a load distribution plate on 51a 54 hollow shaft of 51 54a hollow shaft of 51a 55 inner channel of 54 55a inner channel of 54a 56 shaft tip of 54 56a shaft tip of 54a 57 support shoulder in 54 57a support shoulder in 54a 58 entrance opening in 53 59 Exit opening in 56 60 template 65 control plate 67 recess in 65 68 inner edges of 67 69 incision in 65 70 Feed module 71 valve bodies of 70 71a Side wall of 71 71b Side wall of 71 71c Front of 71 71d back wall of 71 71e housing cover of 71 71f floor of 71 73 sliders in 71 75 linear guide of 73 75a bar of 75 75b bar of 75 76 Opening in 71e 77 ejection windows in 71 78 Recording Room 80 adjusting tab 81 rail in 71 81a rail in 71 82 bar of 70 83 Control plate 84 control groove 85 locking lever 86 cross plate of 85 88 Conveyor gap 90 Roof substructure 91 raised bead 92 deep bead 93 sheet metal crowns 94 Insulation material 95 roofing membrane 95a roofing membrane 96 edge area of ​​95 / 95a 97 Vapor barrier 98 interface

Claims

[1] Setting tool (1) for the mechanical fastening of roof sealing membranes and insulation materials on flat roofs by means of fastening elements (50, 50a), each consisting of a plastic holder (51, 51a) with a load distribution plate (53, 53a) with a hollow shaft (54, 54a) and a screw (52) which is recessed in the hollow shaft (54, 54a) and anchored in the supporting shell of a flat roof and which are fed from at least one magazine (30) by means of a separating device (40) each individually to a template (60) in a position suitable for assembly, in which they are gripped by a rotary drive means (17) of a lifting device (10) which can be raised and lowered in the screw-in axis (20) and has a screwdriver (15) attached thereto, wherein the lifting device (10) which can be raised and lowered carries out adjusting movements for the elements involved in the separation and transfer of a fastening element (50, 50a) in the setting tool (1) are derived, characterized by , that a feed module (70) is arranged between the separating device (40) and the template (60), in which at least one slider (73) is arranged, which pushes the fastening element (50, 50a) towards the template (60) and is movable on a linear guide (75), wherein the feed module (70) comprises two slider housings (71) which are adjacent to one another and enclose a conveying gap (88) between them, so that the shaft of a fastening element can be guided through between the two housing parts, and which each contain a slider (73), wherein both slides (73) are moved synchronously with each other depending on the lifting movement of the screwdriver (15), in that each slide (73) is connected to an adjusting tab (80) which can be raised and lowered depending on the lifting movement of the screwdriver (15). [2] Setting tool according to claim 1, characterized bythat the adjusting tab (80) is guided on two parallel and vertically aligned rails (81). [3] Setting tool according to claim 1 and 2, characterized by that the adjusting tab (80) comprises a strip (82) projecting from the slide housing (71) with a control plate (83) located inside the slide housing (71), and that a control groove (84) is provided in the control plate (83) into which a control bolt seated on the slide (73) engages. [4] Setting tool according to claim 3, characterized by that the control groove (84) is aligned sloping towards the template (60). [5] Setting tool according to claims 2 to 4, characterized by that an angular locking lever (85) is arranged on the vertically movable adjusting tab (80), which has at its free end a transverse plate (86) closing an ejection window (77) of the slide housing (71). [6] Setting tool according to claims 1 to 5, characterized bythat each slider (73) is arranged on a linear guide (75). [7] Setting tool according to claim 6, characterized by that the linear guide (75) of a slide (73) consists of two rods (75a, 75b) extending between the rear wall (71d) and the front side (71c) of the slide housing (71) and arranged one above the other, passing through the slide (73). [8] Setting tool according to claims 3-7, characterized by that a further control plate (65) and / or the feed module (70) are operatively connected to a coupling (42). [9] Setting tool according to claim 8, characterized by that the coupling (42) is attached to the setting device (1) in a height-adjustable manner and has a button (43), in the travel path of which a deflector (45) fixedly attached to the setting device (1) is arranged. [10] Setting tool according to claim 9, characterized bythat the button (43) is spring-loaded and has at its end remote from the deflector (45) a driver (47) which can be brought into and out of engagement with the control plate (65).

Images