Device for fixing of loads on the bottom of a floor of a scaffold

Abstract

The present invention relates to a device for attaching loads to the underside of a scaffold platform. The present invention further relates to the use of the underside of a scaffold platform for the temporary or permanent attachment or suspension of loads. The present invention also relates to a scaffold.

Description

[0001] The present invention relates to a device for attaching loads to the underside of a scaffold platform. The present invention further relates to the use of the underside of a scaffold platform for the temporary or permanent attachment or suspension of loads. The present invention also relates to a scaffold.

[0002] Scaffolding, which can be temporarily erected on facades for the purpose of carrying out work on the facade, has been around for a long time. Such scaffolding is usually modular in design, allowing for quick assembly and disassembly. Scaffolding typically consists of a frame onto which a platform or scaffold deck can be placed. The platform or scaffold deck is attached to the top of the frame, and can then be used as a working surface.

[0003] For example, EP 0 485 730 A1 describes a covering for scaffolding in the form of a panel-shaped floor.

[0004] WO 2011 / 136487A2 discloses a safety device for fall prevention. A safety device for fall prevention is provided, comprising: a guide tube open in the center of a floor surface and provided internally with a guide projection; a safety roller having a head section connected to the guide tube and a guide groove formed at a position corresponding to the guide projection; and a support form connected outside the guide tube in such a way that it is detachable and can be connected to an external structure.

[0005] IT RM20 080 402 A1 refers to systems and / or equipment or accessories for use in scaffolding.

[0006] EP 2 712 979 A1 relates to a fall protection system for persons working on a structure or the like, in particular a fall protection system for use with scaffolding. During the erection and dismantling of scaffolding, the protection of persons working on the scaffolding is insufficient or not guaranteed at all. The invention proposes to provide persons working on the scaffolding with fall protection while simultaneously ensuring them sufficient freedom of movement to continue their erection / dismantling work. For this purpose, a preferably horizontal scaffold tube, for example, part of a platform, is proposed, which is equipped with a rope that runs substantially along its outer surface. The person working on the scaffolding can attach themselves to the rope by means of a harness and move back and forth along the length of the scaffold tube.

[0007] GB 405 326 A discloses a board for use as a support for scaffolding or similar purposes, consisting of a piece of substantially thin metal, the upper surface of which is treated to provide a tread, and the longitudinal edges of which are bent downward, inward, and upward to form an substantially channel-shaped reinforcing element along each edge. The tread of the board may be provided with circular or other embossing or projections, or it may be corrugated, ribbed, or otherwise shaped to secure inserts of a softer metal, such as lead. Alternatively, the surface of the board may be covered with a non-slip material, such as a piece of woven fabric. US 6092623A discloses a device for securing workers on a platform by means of tethers.

[0008] However, the problem of temporarily or permanently fixing loads, such as tools or materials, to the underside of the scaffold floor so that they are more easily accessible during work processes remains unresolved in the state of the art.

[0009] This problem is solved according to the present invention by the features of the independent claims. The respective dependent claims represent advantageous further developments.

[0010] The invention thus relates to a device for fastening loads according to claim 1 to the underside of a scaffold platform of a scaffold, comprising at least one fastening means that enables fastening to the underside of the scaffold platform, and at least one fastening option for loads.

[0011] The device can thus be fixed to the underside of a scaffold platform, allowing loads to be transferred to the scaffold or platform via the device's attachment point. Loads can be attached to the attachment point by tying, hanging, or similar means. For example, heavy objects such as tools or materials (e.g., buckets) can be hung from the attachment point, bringing them to head height. This makes loads attached to the attachment point more easily accessible than if they were placed at ground level.From a safety perspective, fixing the loads to the device's attachment point is also advantageous, as it prevents, for example, the unintentional falling of objects from the scaffolding by fixing the loads to the attachment point.

[0012] The device can be attached to the scaffold platform in a reversible or permanent manner. In the case of permanent attachment, the mounting points may already be pre-installed on the underside of the scaffold platform.

[0013] A modular design of the load-fastening device according to the invention is particularly preferred, in which the fastening means that enables attachment to the underside of the scaffold platform is reversibly detachable. The device can thus be detached from the scaffold platform and, if necessary, attached and fixed to the underside of the scaffold platform. This allows for an extremely flexible design, whereby the device can be attached to the underside of the scaffold platform as needed, and preferably at flexible and varying locations.

[0014] If the device is permanently fixed to the scaffold floor, it can be attached, for example, by riveting, gluing and / or welding.

[0015] In particular, for the preferred case that the device is to be reversibly attached to the underside of the scaffold floor, the fastening means is designed as a reversibly detachable and lockable fastening, for example in the form of a clamp fastening, a screw fastening, the possibility of wedging or in the form of a clamp fastening.

[0016] In a preferred embodiment, the at least one fastening means can be formed in pairs on the device. According to this preferred embodiment, the device can be symmetrical with respect to the fastening means, for example, by having at least one fastening means on each side of the device. For example, fastening means can be attached to the distal ends of the device. This possibility includes the possibility that at least one fastening means can be formed at each distal end of the device.

[0017] In a first preferred embodiment, the fastening means are designed such that they can engage in grooves of the scaffold base, wherein the scaffold base has on its underside two box-like profiles, which determine the height of the scaffold base and are arranged spaced apart from each other, wherein each wall of the profiles facing the other profile has a groove which includes a wall which can bear a vertical load, wherein the fastening means can transfer a vertical load onto the walls when engaging in the grooves.

[0018] According to this preferred embodiment, the fastening element of the device is able to transfer a vertical load onto the groove of a suitably designed scaffold platform. The groove of the scaffold platform includes a wall that can absorb a vertical force component. For example, the wall can be horizontal or chamfered, at least in some areas.

[0019] In this case, the fastening element of the device must be designed in such a way that it can engage in the groove in a form-fit and / or force-fit manner.

[0020] For example, the fastening element can be formed at the distal ends of the device and have a geometry designed according to the groove of the scaffold base.

[0021] Particularly preferably, the fastening element can, for example, have a nose that has at least one wall capable of displacing a vertical force component. This wall therefore has, in particular, at least one surface that does not extend in a vertical direction, for example, that is chamfered or extends horizontally.

[0022] According to a second preferred embodiment, the fastening means are designed such that they can engage in the overhangs of the scaffold platform. In this embodiment, the scaffold platform has two box-like profiles on its underside, which determine the height of the scaffold platform and are spaced apart from each other. Each profile has a wall facing the other profile that is fixed to the underside of the scaffold platform and has an overhang capable of bearing a vertical load. When engaging the overhangs, the fastening means can transfer a vertical load onto them.

[0023] According to this preferred embodiment, a fastening element can be provided at each distal end of the device, which can interact with the previously described overhangs in a form-fit and / or force-fit manner to distribute a vertical force component (the load). In this case, the overhangs are preferably designed such that they have a profile with a non-vertical component, for example, beveled relative to the vertical. The fastening element preferably has a corresponding geometric design so that, when the fastening element interacts with the scaffold base, a positive fit preferably occurs between the fastening element and the overhang. In particular, the fastening element can be designed as a pair of clamps at each distal end of the device, with the clamps projecting upwards in a vertical direction.The clamps preferably have a surface beveled relative to the vertical, which allows a vertical load to be transferred downwards. In the aforementioned cases, it is particularly preferred if the device is adjustable in length and lockable in the horizontal direction.

[0024] The device, with the previously described fastening elements, can then be brought to the mounting point on the scaffold platform in a shortened state and extended or shortened horizontally until a positive or non-positive connection is achieved with, for example, the groove or the projection of the scaffold platform. Once the positive or non-positive connection of the device with the scaffold platform has been established, the device can preferably be locked in its horizontal length, thus enabling a secure and permanent, yet releasable, attachment of the device to the underside of the scaffold platform.

[0025] A third preferred embodiment provides that the at least one fastening means is designed such that it can engage and be fixed in at least one opening and / or at least one opening of the scaffold floor, wherein the at least one fastening means, when engaging and being fixed in the at least one opening and / or the at least one opening of the scaffold floor, can transfer a vertical load onto the scaffold floor.

[0026] According to this preferred embodiment, the fastening means thus has means that engage in openings, penetrations or bores, etc., on the underside of the scaffold floor and can thus fix the device to the underside of the scaffold floor.

[0027] In particular, the device is designed in such a way that it can be attached to a scaffold floor which has two box-like profiles on its underside, which determine the height of the scaffold floor and are spaced apart from each other, with [something] being inserted into the underside of the respective profile.

[0028] In the aforementioned embodiment, the at least one fastening means can, for example, comprise an expansion bolt by means of which the at least one fastening means can be fixed in the at least one penetration and / or the at least one opening of the scaffold floor.

[0029] Alternatively or additionally, it is also possible that the at least one fastening means includes an external thread and the at least one opening and / or the at least one opening of the scaffold base includes an internal thread corresponding to the external thread of the fastening means, whereby the fastening means can be fixed to the scaffold base by screwing the external and internal threads together.

[0030] Furthermore, it is possible that the at least one fastening means is designed as a component separate or separable from the device, wherein the at least one fastening means in particular passes through a through-passage in the device and can engage in the at least one penetration and / or the at least one opening of the scaffold floor.

[0031] It is also possible that at least one fastening element is designed as an integral component of the device.

[0032] According to a fourth preferred embodiment, the device has, in addition to the at least one fastening means by which the fastening means can be fixed to the underside of the scaffold floor, at least one additional fastening means for attaching the device to a frame that serves to hold the scaffold floor.

[0033] According to this embodiment, the fastening device can be fixed to the underside of the scaffold platform on the one hand, and to the frame into which the scaffold platform is suspended on the other. This embodiment provides a means of attaching loads to the underside of the scaffold platform, while simultaneously providing additional anchoring and stabilization of the scaffold platform connected to the frame.

[0034] According to the invention, the device has a horizontally designed load beam to which the fastening option for loads is attached.

[0035] According to the invention, the load beam is designed to be horizontally variable in its length, with the fastening means being formed at horizontally opposite ends (distal ends) of the load beam.

[0036] The possibility of horizontally fixing the horizontally variable load beam, already described above in connection with preferred embodiments, is preferably achieved by means of detents, locking bolts, screws, clamping and / or tensioning devices.

[0037] It is also possible to design the horizontally arranged load beam as a telescopic connector, so that two horizontally movable parts, which can be guided into one another, form the load beam of the device. In this preferred embodiment, in particular, each part of the telescopic connector can have a bore that aligns when the telescopic connector is extended to the desired or required length. By inserting a locking pin, for example a cotter pin, the horizontal length of the telescopic connector can be secured and the load beam locked in place.The fastening options formed, for example, at the distal ends of the load beam for fixing the device to the underside of the scaffold floor can thus engage in the corresponding engagement points on the underside of the scaffold floor (as described above) in a form-fit and / or force-fit manner, thereby enabling the device to be fixed to the underside of the scaffold floor, so that vertical force components can be relieved.

[0038] According to the invention, the fastening option for loads is designed as a guide rail. The fastening option for loads is attached to the horizontal load beam of the device.

[0039] The invention further relates to a method according to claim 16 for attaching loads to the underside of a scaffold platform by means of a device according to the invention as described above. In this method, the device is attached to the underside of the scaffold platform by means of at least one fastening means, and a load is attached to the at least one fastening point for loads.

[0040] According to the invention, the use according to claim 17 of the underside of a scaffold platform for attaching loads is also included; in particular, a device according to the invention as described above is used for attaching loads to the underside of a scaffold platform.

[0041] Furthermore, the present invention relates to a scaffold according to claim 18 comprising at least two frames designed to receive at least one scaffold platform, and at least one scaffold platform received by the two frames, wherein at least one device according to the invention for attaching loads to the underside of a scaffold platform of a scaffold is attached to the underside of the scaffold platform by means of the at least one fastening means.

[0042] The present invention is explained in more detail with reference to the following figures, without limiting its fulfillment to the embodiments shown.

[0043] Figure 1Figure 1 shows a non-inventive embodiment of a device 1 by means of which loads can be fixed to the underside of a scaffold platform 2. A cross-section through the scaffold platform 2 and the device 1 is shown, with the scaffold platform extending lengthwise into the plane of the drawing. The scaffold platform has two profiles 4 that determine its height. The scaffold platform 2 can, for example, be formed from a sheet of metal that has been cold-formed into the corresponding shape of the scaffold platform 2. The profiles 4 extend along two inner walls 5 back to the top of the scaffold platform, where the sheet of metal forming the profile 4 or the wall 5 is connected to the top of the scaffold platform 2, for example, by riveting or welding (not shown). This creates a kind of overhang or cantilever 8. The wall 5 has a groove or...The groove 6 has a notch in which the wall 5 is pressed inwards towards the outer sides of the scaffold base 2. The groove 6 has two surfaces, an upper and a lower surface or wall 7, wherein the lower surface 7 in particular is designed such that it does not run exactly vertically, but has a profile that can absorb a downwardly directed vertical force component.

[0044] The in Figure 1 The illustrated means 1 for fastening loads includes fastening means 3a, which in the exemplary case of the Figure 1The device 1 can be connected to the underside of the profile 4. In the illustrated case, the connection of the device 1 to the underside of the profile 4 can be made, for example, by welding. The fastening element 3a can, for example, be designed as a metal strip. However, the fastening element 3a can also be attached at any other point on the device 1 in order to connect the device to the underside of the scaffold platform 2, for example, by welding.

[0045] Furthermore, the device 1 comprises a load beam 9 to which a fastening means (in the case of the Figure 1 for example, an eyelet 10') is formed. The load beam runs horizontally, and the eyelet 10' is attached to the underside of the load beam 9.

[0046] For example, loads can be attached to the device 1 and thus to the underside of the scaffold floor by tying or hanging them on the eyelet 10' using a hook or carabiner etc.

[0047] Figure 2 shows another embodiment of a device not according to the invention. The scaffold platform 2 is identical to that shown in Figure 1 The device 1 is formed in one piece, with the fastening element 10 being identical to the load beam 9. In this embodiment, the device 1 can, for example, be formed as a metal strip, the distal ends of which are formed according to the geometry of the grooves 6 including the wall 7 of the scaffold platform 2. Figure 2Figure 1 shows an embodiment in which the device 1 is inserted into the scaffold platform 2. The distal ends (the ends formed in the notches 3b) are drawn together, so that the device 1 is under tension. In this horizontally shortened and pre-tensioned form, the device 1 can then be inserted into the corresponding position on the scaffold platform 2. When the device 1 is released or relaxed, the fastening elements, formed as notches 3d, are pressed into the grooves 6 of the scaffold platform. Due to the chamfered shape of the wall 7, it is possible to transfer a vertical force to the wall without the device 1 slipping out of the grooves 6.

[0048] A perspective of the device 1 connected to the scaffold floor 2 is shown in Figure 3As shown, the load beam 9 provides a fastening option 10‴ to which loads can be attached, for example by means of a carabiner or rope, in order to fix them to the underside of the scaffold platform 2.

[0049] Another embodiment of a device 1 that is not according to the invention is described in Figure 4 The scaffold platform 2 is identical to the one shown. Figure 1 The device 1 has a load beam designed as a telescopic connector. The load beam 9 is divided into two parts, with one telescopic connector arm being guided within the other. Both telescopic connector arms of the load beam 9 have an opening O. The telescopic connector arms are shown in perspective in Figure 4 extendable in a horizontal direction, so that the fastening means 3b, which in the case of the Figure 4The lugs, which correspond to the geometry of the groove, can be extended and thus engage in the grooves 6 of the scaffold base. The openings O of the telescopic arms can then be locked by inserting, for example, a bolt (not shown), so that the load arm 9 is fixed in its length.

[0050] A corresponding perspective of a device 1 connected to the scaffold floor 2 according to the embodiment discussed above is shown in Figure 5 illustrated. A load can then be attached, for example, via the fastening option provided on device 1 (in the case of the Figure 5 an eyelet (10') is attached, for example tied or hooked on, and thus relieved of the load.

[0051] The Figure 6 and 7 show an embodiment of the invention, which in Figures 4 and 5The discussed embodiments of device 1. Device 1 is essentially identical to device 1 according to the Figures 4 and 5 In this embodiment, instead of the eyelet 10', a guide rail 10" is attached to the underside, into which, for example, a roller can be mounted. Thus, according to this embodiment, loads can not only be fixed on the underside but also moved into the plane of the drawing.

[0052] Figure 8 Figure 1 shows a further non-inventive embodiment of a device 1. This device also has a telescopically designed load beam 9, which is also present in the devices 1 according to the [reference to be added]. Figures 4 to 7 Application is found. Instead of the formed noses 3b of the device 1 according to the Figures 4 to 7 The device 1 shows in accordance with Figure 8Fasteners 3c are attached, which are designed according to the geometry of the cantilevers 8 of the scaffold platform 2. This means that the fasteners 3c extend vertically upwards from the load beam 9 and have two flanks that can engage in the inclined cantilevers 8. Due to the chamfered shape of the flanks of the fasteners 3c, a vertical force component can thus be fixed to the cantilevers 8. For this purpose, in the embodiment according to Figure 8 It is necessary that the interlocking telescopic arms of the load beam 9 be locked in the horizontal direction, which can also be achieved by securing the openings O in the telescopic arms of the load beam 9, for example, by means of a bolt. According to the embodiment, the load beam also has Figure 8 a 10' eyelet for fixing loads in the manner described above.

[0053] Figure 9shows a device 1 as in Figure 8 shown in installed form.

[0054] Figure 10a Figure 1 shows a further non-inventive embodiment of a device that can be attached to the underside of a scaffold platform 2. The device is characterized in that the load beam 9 is solid and is horizontally wide enough to be attached to the underside of the profile 4. In this case, the profile 4 has openings or bores into which the fastening means 3b, which in the embodiment according to Figure 1 are Figure 10aThe bolts 12 can be inserted into the openings 11. For example, the bolts 12 can be designed as expansion bolts, so that after insertion into the openings 11, the bolts mushroom out, preventing them from being reinserted or withdrawn from the openings 11. Alternatively, threaded holes can be provided in the openings 11, allowing the bolts 12 to be screwed to the scaffold base 2.

[0055] Figure 10b shows a perspective view of the device 1 attached to and fixed on the scaffold base 2.

[0056] Figure 11 shows a further embodiment of a device not according to the invention 1. In Figure 11 Figure 1 shows a side view of a scaffold platform 2, which results, for example, when one looks down at the scaffold platform 2, as shown in the cross-section in the Figures 1 to 10aThe figure shows the scaffold platform 2 viewed from the side. It also shows how the platform is supported by a frame 13. The figure illustrates how the head end 14 of the platform rests on a support element 15 provided for this purpose on the frame 13 and is thus held vertically. The platform also has openings or bores 11. The fastening element 3e of the device 1 is designed as a hook, which can be connected to the platform by threading it into the opening 11 of the platform. On the other side, the device has another fastening element 3f, by means of which the device 1 can be fixed to the frame 13. The fastening element 3f can be used as in the exemplary case of the Figure 11shown, for example, in the form of a spring hook with which a fixation to the support option 15 can be effected. To secure the fastening, the fastening means 3f can, for example, be locked by means of a lever. The device 1 also has a fastening option (in the exemplary case of the Figure 11 an eyelet 10') with which loads can be fixed to the underside of the scaffold floor.

[0057] Figure 12 Figure 1 shows an embodiment of the underside of a scaffold floor which has openings 11 through which a device 1, as described above, can be fixed to the underside of the scaffold floor.

Claims

1. A device (1) for fastening loads to the underside of a scaffolding deck (2) of a scaffold, comprising at least one fastening means (3a, 3b, 3c, 3d, 3e), which enables a fastening to the underside of the scaffolding deck (2), and at least one fastening option (10', 10") for loads, characterized in that the device has a horizontal load beam (9), to which the fastening option (10', 10", 10"') for loads is attached and the load beam (9) is horizontally variable in its length, wherein the fastening means (3b, 3c) are formed at horizontally opposite ends of the load beam (9), and the fastening option (10', 10") for loads is configured as a running rail (10").

2. The device (1) according to claim 1, characterized in that the at least one fastening means (3a, 3b, 3c, 3d, 3e) enables a reversible or permanent fastening.

3. The device (1) according to any one of the preceding claims, characterized in that the at least one fastening means (3a, 3b, 3c, 3d, 3e) enables a fastening by means of clamped fastening, screwing, riveting, engagement in an opening, adhesive bonding, wedging and / or welding.

4. The device (1) according to any one of the preceding claims, characterized in that at least one fastening means (3a, 3b, 3c, 3d) is configured in pairs on the device (1).

5. The device (1) according to the preceding claim, characterized in that the fastening means (3b) are configured in such a way that they may engage in grooves (6) of the scaffolding deck (2), wherein the scaffolding deck (2) has, on the underside, two box-like profiles (4) determining a height (h) of the scaffolding deck (2), which are arranged at a distance from one another, wherein a respective wall (5) of one of the profiles (4) facing the other profile (4) has a groove (6) which comprises a wall (7) which may take up a vertical load, wherein the fastening means (3b), when engaged in the grooves (6), may remove a vertical load on the walls (7).

6. The device (1) according to any one of the preceding claims, characterized in that the fastening means (3b) are configured in such a way that they may engage in bent portions (8) of the scaffolding deck (2), the scaffolding deck (2) has, on the underside, two box-like profiles (4) determining a height (h) of the scaffolding deck (2), which are arranged at a distance from one another, wherein a respective wall (5) facing the respective other profile (4) is fixed to the underside of the scaffolding deck (2) and has a bent portion (8) which may take up a vertical load, wherein the fastening means (3c), when engaged in the bent portion (8), may remove a vertical load on the bent portions (8).

7. The device (1) according to any one of the preceding claims, characterized in that the at least one fastening means (3d) is configured in such a way that it may engage and be fixed in at least one aperture (11) and / or at least one opening of the scaffolding deck (2), wherein the at least one fastening means (3d), when engaged and fixed in the at least one aperture (11) and / or the at least one opening of the scaffolding deck (2), may remove a vertical load on the scaffolding deck.

8. The device (1) according to the preceding claim, characterized in that the scaffolding deck (2) has, on the underside, two box-like profiles (4) determining a height (h) of the scaffolding deck (2), which are arranged at a distance from one another, wherein are formed in the underside of the respective profile (4).

9. The device according to any one of the two preceding claims, characterized in that the at least one fastening means (3d) comprisesan expansion bolt, by means of which the at least one fastening means (3d) may be fixed in at least one aperture (11) and / or the at least one opening of the scaffolding deck (2).

10. The device (1) according to any one of claims 7 to 9, characterized in that the at least one fastening means (3d) comprises an external thread and the at least one aperture (11) and / or the at least one opening of the scaffolding deck (2) comprises an internal thread corresponding to the external thread of the fastening means (3d), wherein the fastening means (3d) may be fixed by screwing the external and internal thread to the scaffolding deck.

11. The device (1) according to any one of claims 7 to 10, characterized in that the at least one fastening means (3d) is embodied as a component separate or separable from the device (1), wherein the at least one fastening means may be guided through a feedthrough (12) formed in the device (1) and may engage in the at least one aperture (11) and / or the at least one opening of the scaffolding deck (2).

12. The device (1) according to any one of claims 7 to 10, characterized in that at least one fastening means (3d) is embodied as an integral component of the device (1).

13. The device (1) according to any one of claims 1 to 3, characterized in that the device, besides the at least one fastening means (3e), additionally comprises at least one fastening means (3f) for fastening the device (1) to a frame (13) that is used to receive the scaffolding deck (2).

14. The device (1) according to any one of the preceding claims, characterized in that the load beam (9), once its length has been set to a fastening position, in which the fastening means (3b, 3c) are fastened to the underside of the scaffolding deck (2), in particular in that the fastening means (3b) engage in the grooves (6) of the scaffolding deck (2) and / or the fastening means (3c) engage in the bent portions (8) of the scaffolding deck (2), is lockable, in particular by latching means, securing bolts, screws, or clamping and / or bracing devices.

15. The device (1) according to any one of the preceding claims, characterized in that the load beam (9) has two parts movable horizontally to one another, which are configured for example as a telescopic plug-in connection.

16. A method for fastening loads to the underside of a scaffolding deck (2) of a scaffold by means of a device (1) for fastening loads according to any one of claims 1 to 15, in which the device is fastened to the underside of the scaffolding deck (2) by means of the at least one fastening means (3a, 3b, 3c), and a load is fastened to the at least one fastening option (10, 10") for loads.

17. Use of the underside of a scaffolding deck (2) of a scaffold for fastening loads, characterized in that a device according to any one of claims 1 to 15 is used for the fastening of loads.

18. A scaffold comprising at least two frames which are intended for receiving at least one scaffolding deck (2), and also at least one scaffolding deck (2), which is received by the two frames, wherein at least one device (1) for fastening loads according to any one of claims 1 to 15 is fastened to the underside of the scaffolding deck (2).

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