Attachment device for a scaffolding

Abstract

The invention relates to an attachment device (11) for a scaffold (12) which can be quickly and easily attached to a scaffold (12) (see Figure 1).

Description

[0001] The invention relates to an attachment device for a scaffold or for positioning on a scaffold, in particular for work preparation for attaching insulation to a facade.

[0002] To create facade insulation, insulation boards must be coated with an adhesive on one side so that the insulation board can be attached to the wall of a building to be insulated. This requires a strip of adhesive to be applied along each side edge of the insulation board. In addition, one or more dots of adhesive can be applied to the central area of the insulation board. This work must be carried out on scaffolding. Such scaffolding has a limited width, which means that the work area for handling such insulation boards and applying an adhesive is restricted. Such insulation boards have dimensions of 500 x 1000 mm or 400 x 1200 mm, for example. Due to this limited space on the scaffolding, applying the adhesive to the insulation board before it is attached to the building wall is cumbersome and time-consuming.

[0003] The invention is based on the object of proposing an attachment device for positioning on a scaffolding, by means of which a reduction of the working time on a scaffolding is possible, in particular for attaching insulation panels to a wall of a building.

[0004] This object is achieved by an attachment device comprising a housing which comprises at least a first and a second suspension element, each having a gripping element for engaging a horizontal strut, wherein the gripping elements have an open receiving area and with a fastening mechanism provided in the housing, which can be actuated with at least one actuating element or a handle and by means of which the suspension elements can be positioned to fix the attachment device to the horizontal struts, preferably under tension and / or clamping, and with a work surface which can be positioned on the housing or the upper suspension element. This attachment device has the advantage that it can be positioned and fixed adjacent to the walking area or working area of the scaffolding in order to accommodate a work surface.The work surface can be positioned on the upper suspension element by hanging it on or inserting it, if required. The work surface can also be rotated on the suspension element. The work surface provided on the attachment device can fulfil various functions. For example, an insulation board resting on the work surface can be easily coated with adhesive, which eliminates the need for another worker to hold the insulation board. At the same time, this reduces the amount of time required to apply the adhesive to the insulation board. The work surface can also be used as a support for an electronic device or be designed to support other structural elements, such as pipes, which are to be attached and installed to a building during the shell construction, for example.In addition, the attachment device allows the work surface to be attached to the scaffolding at an ergonomically favorable height.

[0005] Furthermore, it is preferably provided that the fastening mechanism is designed as a tensioning mechanism, and the tensioning mechanism has a handle or a tensioning element as an actuating element, and the suspension element(s) can be moved towards one another or away from one another by means of the tensioning mechanism. This enables the two opposing suspension elements to engage around the horizontal struts and tension them by clamping. Alternatively, the two suspension elements can also be positioned between the two horizontal struts and moved apart in order to achieve tensioning by clamping. Alternatively, it can also be provided that the suspension element(s) can be pivoted towards one another or away from one another. Instead of a traveling movement, a clamping fastening or a fastening by bracing the attachment device to the horizontal struts can also be achieved by a pivoting movement of the at least one suspension element.

[0006] Furthermore, it is preferably provided that the at least two suspension elements are guided on the housing so that they can be moved relative to one another or are arranged so that they can be pivoted relative to one another.

[0007] According to an alternative embodiment of the attachment device, one suspension element can be movable or pivotable relative to the housing, and at least one further suspension element is fixedly mounted on the housing. This allows for a simplified design of the attachment device.

[0008] On the housing of the attachment device, a clamping element with the gripping element can preferably be provided for the movable or pivotable suspension element, the open receiving area of which points towards the receiving area of the movable suspension element, so that the attachment device can be fixed to the horizontal strut by clamping on both sides.

[0009] Advantageously, the clamping mechanism in the housing, with the handle provided thereon, is designed as a one-hand clamping mechanism, in which a pull rod can be moved or pivoted by operating the movable handle, with the suspension element provided at the opposite end. This enables simple and quick installation of the attachment device on the scaffolding.

[0010] Advantageously, a brake or locking pawl is provided on the handle of the tensioning mechanism, the actuation of which releases the tensioning mechanism. This allows the attachment device attached to a scaffold to be easily released and removed, for example, to reattach it at a different location on the scaffold.

[0011] Furthermore, it is preferably provided that a plug-in opening is provided on the top side of the housing or on an upper suspension element, into which a plug-in spindle can be inserted, which is provided on the work surface or can be attached to the work surface. This allows work surfaces of different sizes to be mounted on the attachment device. Alternatively, this plug-in opening can also be used to accommodate additional parts or components that provide support during the installation of the facade insulation.

[0012] Furthermore, it is preferably provided that the receiving areas of the suspension elements are aligned facing each other or pointing away from each other. In an alternative embodiment, the receiving areas can also be aligned identically. The orientation of the receiving areas of the gripping elements can be determined depending on the design of the fastening mechanism.

[0013] The suspension elements preferably have a U-shaped gripping element. In particular, this U-shaped gripping element is adapted to the diameter of the horizontal strut of the scaffolding, so that the attachment device can be securely positioned transversely to the longitudinal axis of the struts.

[0014] According to an alternative embodiment of the actuating mechanism, one of the gripping elements comprises two pivoting claws which can be moved into a gripping position or a release position by the actuating element. For example, the attachment device can be placed onto the horizontal struts from above, with a lower gripping element engaging the lower rod with its receiving area and the upper gripping element being placed onto the upper rod, with the pivoting claws first opening and then gripping the rod. The actuating element is positioned in a locked position between the claws so that independent opening of the claws is no longer possible. By actively releasing the actuating element, the suspension element with the pivoting claws can be moved into a release position for removing the attachment device.

[0015] According to a further advantageous embodiment of the attachment device, a tension rod arranged between two suspension elements is adjustable in length, preferably with a telescopic mechanism. This allows for individual adjustment of the attachment device to the given distance between two horizontal rods or between a horizontal rod and a scaffold plank.

[0016] The invention, as well as further advantageous embodiments and developments thereof, are described and explained in more detail below with reference to the examples shown in the drawings. The features shown in the description and the drawings can be used individually or in any combination according to the invention. They show: Figure 1a schematic side view of an attachment device before fixing to a scaffold, Figure 2a schematic side view of the attachment device according toFigure 1 in a fixed position on the scaffolding, Figure 3 is a schematic side view of an alternative embodiment to Figure 1 , Figure 4 a schematic side view of a further alternative embodiment to Figure 1 , Figure 5 a schematic side view of the attachment device according to Figure 1 on the scaffolding, Figure 6 a schematic view from above of the arrangement according to Figure 5 , Figure 7 a schematic view of another attachment device for Figure 5 , Figure 8 a schematic side view of an alternative embodiment of the attachment device to Figure 1 , Figure 9 a schematic detailed view of the fastening means of the attachment device according to Figure 8 , and Figure 10 is a schematic side view of an alternative embodiment of the attachment device to Figure 8 .

[0017] In Figure 1A schematic side view of an attachment device 11 is shown. This attachment device 11 is shown in an open position or in a mounting position for fixing to a scaffold. In Figure 2 the attachment device 11 is shown in a closed position or in a use position fixed to the scaffolding.

[0018] The attachment device 11 comprises a housing 41 in which a fastening means 42 is provided. In the present embodiment, the fastening means is designed as a clamping mechanism 42. This clamping mechanism 42 can be actuated via at least one actuating element, in particular a handle 43, wherein at least one grip element 44 is movable relative to the other grip element 45. Both grip elements 44, 45 can also be moved towards one another. The clamping mechanism 42 engages a pull rod 46. As a result, the pull rod 46 is movable relative to the housing 41. An upper suspension element 47 is provided at an end of the pull rod 46 protruding from the housing 41. This suspension element 47 comprises a gripping element 48, which is preferably U-shaped or semicircular. The geometry of the gripping element 48 is preferably adapted to the diameter of a strut 18 of a scaffold 12 (see Figures 5 and 6). A lower suspension element 49 is provided on the housing 41 opposite the suspension element 47. This suspension element 49 is firmly connected to the housing 41 by a tension rod 51.

[0019] This attachment device 11 further comprises a socket 62 on an upper region of the suspension element 47, which is preferably designed as a head region. This socket 62 can also extend into the housing 41. This socket 62 serves to receive a plug-in axle 63, which is connected to a working surface 29 (see Figures 5 and 6 ). This work surface 29 is pluggably connected to the suspension element 47 and / or the housing 41.

[0020] Alternatively or additionally, at least one radial bearing 60 can be provided at least in the region of the suspension element 47 and / or a housing 41 in order to rotatably support the plug-in axle 63.

[0021] To fix the attachment device 11 to a scaffold 12, the attachment device 11 is aligned and positioned with respect to two horizontal struts 18, 19, as shown in Figure 1 is shown. Subsequently, the clamping mechanism 42 is actuated. This is preferably designed as a one-hand clamping mechanism, so that the attachment device 11 can be held in its position relative to the horizontal struts 18, 19 with one hand and the clamping mechanism 42 can be actuated with the other hand. By actuating the handle 43, the upper suspension element 47 is moved in the direction of the housing 41 or the lower suspension element 49. This enables the attachment device 11 to be fixed to the horizontal struts 18, 19 by clamping and / or bracing.

[0022] A further clamping element 65 is preferably provided on the housing 41. This clamping element 65 is assigned to the upper suspension element 47. This clamping element 65 also has a gripping element whose open receiving area is aligned as a mirror image to that of the suspension element 47. This enables the clamping element 65 and the upper suspension element 47 to grip the upper horizontal strut 18 on both sides. In addition, the other suspension element 49 engages the middle or lower strut 19. This can enable increased security when attaching the attachment device 11 to the scaffolding 12. The tensioning mechanism 42 has a type of ratchet function. With increasing actuation by means of the handle 43, a travel movement of the pull rod in only one direction is controlled, whereby the pull rod is secured against spontaneous release or opening.

[0023] If, after use, the attachment device 11 needs to be released from the scaffolding 12, a locking pawl 66 on the handle element 45 is actuated, releasing the tensioning mechanism 42. This releases a moving movement of the pull rod 46, allowing the suspension elements 47, 49 to be released from the struts 18, 19.

[0024] In Figure 3 is an alternative embodiment to the attachment device according to Figures 1 and 2 This embodiment according to Figure 3 differs only in that the additional clamping element 65 is not provided. Otherwise, the attachment device 11 according to Figure 3 in the structure and function of the embodiment according to Figures 1 and 2.

[0025] In Figure 4 is an alternative embodiment to Figure 3 This embodiment of the attachment device 11 according to Figure 4differs in that the upper suspension element 47 is firmly connected to the housing. The tension rod 46 is provided on the tension rod 51. This means that the lower suspension element 49 is movable relative to the housing 41. The functional principle of the attachment device 11 according to Figure 3 is modified in that, instead of the upper suspension element 47, the lower suspension element 49 is movable relative to the housing 41. The clamping mechanism 42 functions analogously.

[0026] According to a further alternative embodiment of the attachment device 11 according to Figure 1 or 3It can be provided that the upper suspension element 47 is pivotally connected to the housing 41. This pivoting movement can in turn be converted from an open position to a closed position by a clamping mechanism 42, so that the upper suspension element 47 is fixed to the upper strut 18 and the lower suspension element 49 is fixed to the lower strut 19 by clamping and / or bracing.

[0027] In Figure 5 is a side view of a scaffold 12 with an attachment device 11 attached to it. Figure 6 shows a schematic view from above of the scaffolding 12 according to Figure 5This scaffolding 12, which is known as such, comprises vertical struts 14 connected to a frame 17 by short horizontal struts 16. Two opposing frames 17 are connected by upper horizontal struts 18 and middle horizontal struts 19. Furthermore, at least one scaffold plank 21, preferably two scaffold planks 21, is provided between the two frames 17. These scaffold planks 21 are suspended from the short horizontal struts 16. Additionally, a toeboard 20 is assigned to the scaffold plank 21 and is provided on an outer side of the scaffolding 12, which toeboard is attached to the outer vertical struts 14. This structure can be extended as desired and / or increased in height.

[0028] In plan view according to Figure 6The scaffold planks 21 form a walkway between the two horizontal struts 18, 19, the width of which is limited by the horizontal struts 18, 19. This walkway simultaneously forms a working area within the scaffolding 12.

[0029] The attachment device 11 is shown in the side view in Figure 2, 3 or 4 on the scaffolding 12 according to Figure 5fastened. It can be provided that the attachment device 11 is fastened to the upper horizontal strut 18 and the middle horizontal strut 19. The attachment device 11 can also be fastened to the middle horizontal strut 19 and the scaffolding plank 21. The attachment device 11 can also be fastened to the upper horizontal strut 18 and the scaffolding plank 21. The plug-in axle 63, to which the work surface 29 is fastened, is inserted into the plug-in socket 62. The plug-in axle 63 is mounted in the plug-in socket 62 so as to be rotatable about an axis 28. The work surface 29 is designed, for example, as a rectangular plate. The format of the work surface 29 can correspond to a smallest standard size for an insulation board. The work surface can, for example, have dimensions of 500 × 1000 mm or 400 × 1200 mm. The work surface 29 can also be designed in a smaller format.

[0030] To attach insulation panels 35 to wall 25, they are placed on the work surface 29 of the attachment device 11. An adhesive 37 is then applied in strips along a side edge 36 of the insulation panel 35. The work surface 29 is then rotated 90° so that another adhesive strip 37 is applied along the next side edge of the insulation panel located within the travel path. This is repeated two more times. Additionally, at least one further application of adhesive can be made in the central region of the insulation panel 35. The insulation panel 35 is then removed from the work surface 29 and can be laid on the wall 25.

[0031] The work surface 29 with the socket 52 arranged thereon can comprise further alternative configurations. For example, a flap in the form of a sunshade can be provided on the work surface 29 and / or the work surface 29 can serve to support an electronic device. The work surface 29 can also be designed as a U-shaped profile, for example, to accommodate pipes, gutters, or the like. If such installations of pipes or gutters are provided, two attachment devices 11 can preferably be provided adjacent to one another on the scaffolding 12, so that the pipe, gutter, or the like can be supported by at least two support points.

[0032] Furthermore, it can be provided that mounting receptacles are provided on the housing 41 of the attachment device 11. Various adapters can be attached to these mounting receptacles. For example, a cup holder or a tool holder or the like can be arranged thereon.

[0033] In Figure 7a schematic side view of a scaffold 12 is shown, on which, for example, two adjacent attachment devices 11 are positioned and fixed. Preferably, the work surface 29 is fixed to the respective attachment device 11 by means of a respective plug-in axis 63. Several attachment devices 11 can also accommodate the work surface 29. This work surface 29 can have a greater length than the rotatable work surface 29. In particular, this can create an assembly workstation. For example, receptacles for positioning pipes on the work surface 29 can be provided in order to fix them in place or to connect them to other components. This is particularly the case when renovating houses, for example if pipes have to be routed along the outside of the wall before the insulation is applied.Such a work surface 29 can advantageously have a circumferential or at least partially circumferential edge 31 that is raised relative to the work surface 29. This ensures that tools or the like remain on the work surface 29. The plug-in axles 63 can be detachably provided on an underside of the work surface 29. Several bushings can also be provided on the underside of the work surface 29, so that the plug-in axles 63 can be inserted depending on the number of attachment devices 11 to which the work surface 29 is to be connected.

[0034] In Figure 8 is a schematic side view of an alternative attachment device 11 to Figure 1 This attachment device 11 has a fastening mechanism 42 which differs from the embodiment according to Figure 1deviates. This fastening mechanism 41 comprises two claws 68, which are pivotally provided on or in the housing 41. Each claw 68 has an open receiving area for engagement with the horizontal strut 18, 19. An actuating element 43 is provided at the opposite ends of the claws 68. This actuating element 43 can be designed as a sliding latch or a pivoting latch. In a gripping position of the claws 68, the actuating element 43 is positioned between the ends of the claws 68 that are opposite the receiving area. As a result, the attachment device 11 is held fixed to the horizontal strut 18, 19. Advantageously, the position of the actuating element 43 in the gripping position can be secured by a securing element, such as a sprint.

[0035] The Figure 9 shows the actuating mechanism 42 according to Figure 8in a release or open position. The actuating element 43 is positioned away from the claws 68, so that they are freely pivotable on or in the housing 41. This allows the attachment device 11 to be placed on or lifted off the strut 18, 19.

[0036] The attachment device 11 according to Figure 8 For example, it has a tension rod 51 which is adjustable in length. For this purpose, a telescopic mechanism 71 is provided. This can also be used in the embodiment according to the Figures 1 to 4 be provided.

[0037] In Figure 10 is an alternative embodiment of the attachment device 11 to Figure 8This embodiment differs in that the open receiving area of the lower suspension element 49 is aligned such that the gripping element rests on the lower strut 19 after the attachment device 11 has been attached to the upper strut 18. This embodiment, like the previously described embodiment, enables the attachment device 11 to be attached to the scaffolding under clamping and / or tension. Also on the attachment device 11 according to the Figures 8 to 10 the previously described embodiments of the work surface 29 can be provided.

Claims

1. An attachment device for a scaffold (12), - with a housing (41) which comprises an upper and a lower suspension element (47, 49), each having a gripping element (48) for engaging a respective horizontal strut (18, 19), wherein the gripping elements (48) have an open receiving area, - with a fastening mechanism (42) provided on or in the housing (41), which can be actuated with at least one actuating element (43) and by means of which the at least one suspension element (47, 49) can be positioned for fixing to the horizontal strut(s) (18, 19), and - with a work surface (29) which can be positioned on the upper suspension element (47) or on the housing (41).

2. Attachment device according to claim 1, characterized in thatthe fastening means (42) is designed as a tensioning mechanism, and the tensioning mechanism has a handle or a clamping or tensioning element as the actuating element (43), and the suspension element(s) (47, 49) can be moved or pivoted towards or away from each other by the tensioning mechanism (42).

3. Attachment device according to claim 1 or 2, characterized in that the suspension elements (47, 49) are guided or arranged on the housing (41) so as to be movable or pivotable relative to one another.

4. Attachment device according to claim 1 or 2, characterized in that one suspension element (47, 49) is movable relative to the housing (41) and the other suspension element (49, 47) is fixedly provided on the housing (41).

5. Attachment device according to one of the preceding claims, characterized in thata clamping element (65) with the gripping element (48) is provided on the housing (41) facing the movable suspension element (47, 49), whereby the attachment device (11) is fixed to the horizontal strut (18, 19) between the movable suspension element (47, 49) and the clamping element (65) by clamping on both sides.

6. Attachment device according to one of claims 2 to 5, characterized in that the clamping mechanism (42) with the handle (43) is designed as a one-hand clamping mechanism, in which a pull rod (46) of the clamping mechanism (42) can be actuated by actuating a movable handle element (44, 45), which pull rod has the suspension element (47, 49) at its opposite free end.

7. Attachment device according to one of claims 2 to 6, characterized in that a brake or a pawl (66) is provided on the handle (43) of the tensioning mechanism (42), by the actuation of which the tensioning mechanism (42) can be released.

8. Attachment device according to one of the preceding claims, characterized in that a plug-in bushing (62) and / or at least one radial bearing (60) is provided on an upper side of the housing (41) or on an upper suspension element (47) in order to receive a plug-in axle (63) which is arranged or received on the working surface (29).

9. Attachment device according to one of the preceding claims, characterized in that the receiving areas of the gripping elements (48) are aligned facing each other or pointing away from each other.

10. Attachment device according to one of the preceding claims, characterized in that the suspension elements (47, 49) have a U-shaped gripping element (48) which is preferably adapted to a diameter of the strut (18, 19) 11. Attachment device according to one of the preceding claims, characterized in thatone of the gripping elements (48) is designed as two pivotable claws (68) which can be transferred by the actuating element (41) into a gripping position on the strut (18, 19) or into a release position from the strut (18, 19).

12. Attachment device according to one of the preceding claims, characterized in that a tension rod (51) arranged between two suspension elements (47, 48) can be changed in length, preferably by a telescopic mechanism (71).

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