Fastening device for fastening to a support, method to mount and dismount on a support.

Abstract

The invention relates to a fastening device for attachment to a beam. The fastening device comprises a guide element, a fixed clamping element arranged at a first end of the guide element, a clamping element axially displaceable in a longitudinal direction of the guide element, wherein the displaceable clamping element can be fixed to a stop element, and at least one fall protection net fastening element. The fastening device also includes a wedge device which can be fastened between the displaceable clamping element and the stop element on a beam. The invention further relates to a method for attaching a fastening device to a beam, a method for detaching a fastening device from a beam, the use of a fastening device for attaching a fall protection net, and a fall arrest device.

Description

[0001] The present invention relates to a fastening device for attachment to a support, a method for attaching a fastening device to a support, a method for releasing a fastening device from a support, the use of a fastening device for attaching a fall protection net and a fall protection device.

[0002] To construct concrete slabs, such as those used in building construction, formwork made of formwork elements is employed. Installing such formwork places high demands on occupational safety, as the work must be carried out at heights where falls can often result in serious or fatal accidents. To minimize the risk of such accidents, various preventative measures exist. For example, there are special formwork systems that can be installed from the ground below, thus eliminating the risk of falls. Alternatively, fall protection systems can be used to prevent or mitigate falls and therefore minimize the risk of injury. Fall protection devices can provide either individual or collective protection, with the latter being preferable.

[0003] Fall protection devices for ceiling formwork are known from the state of the art.

[0004] EP3679206B1 describes an individual fall protection device consisting of a base to which personal protective equipment can be attached. This fall protection device can only secure individual persons. Furthermore, the assembly and disassembly of the base is time-consuming.

[0005] EP1899551B1 describes a slab formwork system consisting of several grid elements. Because the grid elements are installed at close intervals, collective fall protection can be achieved. However, to prevent falls, the grid elements must be installed at close intervals, which is resource- and time-intensive.

[0006] DE102017123014A1 describes a collective fall protection device consisting of several spacer elements. These spacer elements are positioned between two yoke timbers. The spacer elements are held in place by a fastening device with hooks that can accommodate a fall protection net. The fall protection device comprises several individual parts, making assembly and disassembly time-consuming. Furthermore, the fastening devices cannot be attached to the yoke timbers without aids such as ladders, which is also time-consuming and poses additional accident risks.

[0007] The object of the invention is to overcome the disadvantages of the prior art. In particular, a fastening device for attaching a support and for attaching a fall protection net is intended to enable collective fall protection, especially in the case of formwork ceilings, which can be assembled and disassembled quickly and efficiently.

[0008] The problem is solved by a fastening device for attachment to a support, a method for attaching a fastening device to a support, a method for releasing a fastening device from a support, the use of a fastening device for attaching a fall protection net and a fall protection device according to the independent claims.

[0009] In particular, the problem is solved by a fastening device for attachment to a beam. The fastening device comprises a guide element, a fixed clamping element arranged at a first end of the guide element, a clamping element axially displaceable in a longitudinal direction of the guide element, wherein the displaceable clamping element can be fixed to a stop element, and at least one fall protection net fastening element. The fastening device can be attached to a beam by means of a wedge device between the displaceable clamping element and the stop element.

[0010] In this context, a fastening device refers to a device for attaching to a beam, capable of holding a fall protection net, thus creating collective fall protection during construction work, particularly slab formwork. A beam, in this context, refers to a structural element that can serve to temporarily or permanently support or bear loads. Specifically, a beam is understood to be a solid-web beam made of wood, as defined in DIN EN 133377:2022-11, with a height of 20 cm. It is evident that the fastening device can also be attached to beams that do not conform to this standard.

[0011] The guide element has a height greater than the height of the support to which the fastening element is to be attached. Part of the guide element may be designed as a gripping surface. The width and length of the guide element are preferably designed so that it can be securely held with one hand. A width and length of less than 100 mm, and in particular less than 50 mm, are conceivable.

[0012] The guide element can serve as a stop when attaching the fastening device to a support.

[0013] In this case, a fixed clamping element refers to a clamping element that is not movable relative to the guide element and can rest at least partially on a beam. The fixed clamping element comprises at least one surface that can rest on a beam and is designed as a yoke beam clamping surface or a saddle beam clamping surface. The length of this surface can be at least half the width of the beam to be clamped, preferably at least the width of the beam to be clamped. The width of the surface can be less than the length of the clamping surface.

[0014] In this case, a yoke clamping surface refers to a surface that can rest on a yoke beam and clamp it in conjunction with another clamping surface.

[0015] In this case, a saddle carrier clamping surface refers to a surface that can rest on a saddle carrier or a flange of a saddle carrier and can clamp it directly or indirectly in conjunction with another clamping surface.

[0016] The fixed clamping element can be attached to the guide element either by means of screw connections (removable) or by means of a welded connection (permanent). Other suitable joining methods are also conceivable. Furthermore, it is also conceivable that the fixed clamping element could be formed by bending the guide element.

[0017] In this context, a movable clamping element refers to a clamping element that is axially movable relative to the guide element and can bear at least partially against a support, particularly the underside of the support. The movable clamping element can comprise at least one clamping surface. Furthermore, the movable clamping element can comprise a lower stop surface, which may be separated from the clamping surface by a spacer element.

[0018] The length of the clamping surface can be at least half the width of the beam to be clamped, preferably at least the width of the beam to be clamped. The width of the clamping surface can be less than the length of the clamping surface.

[0019] The end of the clamping surface facing away from the guide element can be bent towards the fixed clamping element, which can prevent unintentional displacement of the fastening device.

[0020] The spacer element can have a height of 80 mm to 120 mm, in particular 100 mm, and can be cylindrical or cuboid. The spacer element can include a continuous groove which can support the wedge device.

[0021] In this context, a stop element refers to an element suitable for limiting the axial displacement of the movable clamping element along the guide element. The stop element may include a through-hole or a continuous slot suitable for mounting the spacer of the movable clamping element.

[0022] The stop element can be attached to the guide element either by means of screw connections (removable) or by means of a welded connection (permanent). Other suitable joining methods are also conceivable.

[0023] In this context, a safety net fastening element refers to a fastening element suitable for attaching a safety net to the mounting device. It is conceivable that two safety net fastening elements are arranged on opposite sides of the mounting device to increase flexibility when attaching the safety net. It is also conceivable that several safety net fastening elements are arranged at different heights on the guide element.

[0024] The safety net fastening element can be attached to the guide element either detachably via screw connections or permanently via weld connections. Other suitable joining methods are also conceivable.

[0025] In this context, a wedge device refers to a device that is completely or at least partially wedge-shaped and is suitable for clamping a sliding clamping element between the underside of a support and the stop element. A self-locking connection can exist between the wedge device, the stop element, and the sliding clamping element.

[0026] The fastening device can be attached to a support by means of a wedge device between the sliding clamping element and the stop element.

[0027] The wedge device can be designed as a wedge comprising two opposing striking surfaces.

[0028] The striking surfaces allow the wedge to be fastened or loosened with one or more blows from a hammer or other striking tool. Fastening and loosening can be done quickly and without special tools. The striking surface suitable for fastening the wedge is located opposite the side of the wedge's smallest dimension.

[0029] The striking surface, suitable for releasing the wedge, is located on the side of the wedge's smallest dimension. The striking surfaces can be of the same size. It is conceivable, in particular, that the striking surface also functions as a stop for releasing the wedge, thus preventing its removal from the fastening device. Furthermore, the striking surfaces can be wider than the rest of the wedge. The wedge angle can range from 5° to 25°, particularly 18°. The wedge height can range from 10 mm to 80 mm, particularly 45 mm. It is also conceivable that the wedge has a length between 60 mm and 150 mm, particularly 105 mm.

[0030] The wedge device can be designed as a double wedge, which comprises two opposing striking surfaces and wherein the smallest dimension of the wedge is essentially located in the middle.

[0031] By using a double wedge, the fastening device can be attached to a support more flexibly. The opposing striking surfaces allow the fastening device to be attached to a support by striking either striking surface once or several times. The fastening device can be detached from a support by striking either striking surface once or several times. This increased flexibility allows for faster assembly and disassembly. The double wedge can be manufactured from a single piece or by joining two individual wedges. The double wedge is preferably mirror-symmetrical in two planes. The striking surfaces can be wider than the rest of the double wedge to increase the striking surface area.

[0032] The wedge angles of the double wedge can range from 5° to 25°, particularly 18°. The double wedge height is conceivable to be between 10 mm and 80 mm, particularly 45 mm. Furthermore, the double wedge is conceivable to have a length between 120 mm and 300 mm, particularly 210 mm.

[0033] The guide element can have a round or rounded-rectangular cross-section and, in particular, can be hollow. In one embodiment, the guide element can have an elliptical cross-section or any cross-section suitable for gripping the guide element.

[0034] The guide element can be designed as a tube or hollow profile. It can be welded or rolled. It is conceivable that, in the case of a rounded rectangular cross-section, the rectangle could be a square. Furthermore, it is also conceivable that the longer side of the rounded rectangular cross-section could be twice as long as the shorter side.

[0035] Such cross-sections can reduce sharp edges and thus the risk of injury.

[0036] A hollow design of the guide element reduces the mass of the fastening device. This can allow a person to attach fasteners more quickly and with less effort.

[0037] It is also conceivable that the guide element fully or partially incorporates a surface profile that can increase its grip. This surface profile can be created, for example, by embossing, knurling, or serration.

[0038] The guide element can have a height H between 350 mm and 1500 mm, preferably between 500 mm and 900 mm, in particular 700 mm. The height corresponds to the largest dimension of the guide element.

[0039] This height of the guide element makes it possible to attach the fastener to a beam from the floor below without using any aids such as a ladder or other climbing equipment. It is conceivable that ceiling heights of up to 3.2 m could be reached by a person of average height without any aids. This can enable quick installation of the fasteners and simultaneously reduces the risk of accidents, as work can be carried out from the ground without any aids.

[0040] The stop element can be designed as a U-shaped profile, with the U-shaped opening facing away from the fixed clamping element and the base of the profile including a feed-through element.

[0041] The U-shaped profile ensures a sufficient contact surface with the guide element for welding while simultaneously saving weight. Furthermore, the opening in the U-shaped profile increases the freedom of movement of the movable stop element.

[0042] It is also conceivable that the stop element is designed as a hollow profile or a flat profile.

[0043] The feedthrough element allows for the mounting of cylindrical or cuboid spacers for the sliding clamping element. The feedthrough element can be designed, for example, as a groove or slot and can be milled, punched, or cut. Cutting of the feedthrough element can be carried out, for example, by oxyfuel cutting, laser cutting, plasma cutting, waterjet cutting, or sawing.

[0044] It is conceivable that in one embodiment the stop element could be axially displaceable and fixed in a longitudinal direction along the guide element. This allows the distance between the fixed clamping element and the displaceable clamping element to be adjusted. This makes it possible to adapt the distance to the height of the support to be clamped, thus enabling a wider range of applications for the fastening device.

[0045] The sliding clamping element can be tilted about an axis substantially parallel to the longitudinal extent of the stop element. Because the sliding clamping element is tiltable, even with non-parallel beams, both the yoke clamping surface and / or saddle clamping surface of the fixed clamping element and the clamping surface of the sliding clamping element can rest on the beam. The tiltability of the sliding clamping element is achieved by mounting the spacer element of the sliding clamping element with play in the feedthrough element of the stop element. This play can be, for example, between 2 mm and 5 mm.

[0046] The fixed clamping element can comprise at least one surface, in particular three surfaces. At least one of the surfaces can be designed as a yoke beam clamping surface or as a saddle beam clamping surface.

[0047] The yoke clamping surface can rest on a yoke. The saddle clamping surface is essentially parallel to the yoke clamping surface and can rest on a flange of a saddle.

[0048] It is conceivable that the fixed clamping element comprises a yoke clamping surface or a saddle clamping surface. In particular, it is conceivable that the fixed clamping element comprises both a yoke clamping surface and a saddle clamping surface. The saddle clamping surface can be located closer to the first end of the guide element than the yoke clamping surface, with the parallel distance between the saddle clamping surface and the yoke clamping surface being a maximum of 40 mm.

[0049] A mounting device can be attached to a saddle and a yoke using a saddle carrier clamping surface and a yoke clamping surface. This improves the stability of the support structure.

[0050] It is also conceivable that the fixed clamping element comprises a yoke clamping surface, a saddle clamping surface, and a third non-clamping surface, with the yoke clamping surface being arranged between the non-clamping surface and the saddle clamping surface. The non-clamping surface can be designed in the same way as the saddle clamping surface.

[0051] By using a saddle carrier clamping surface and a non-clamping surface designed in the same way as the saddle carrier clamping surface, the flexibility of the mounting orientation of the fastening device can be increased.

[0052] The saddle carrier clamping surface can comprise at least one, preferably two, partial surfaces inclined towards the movable clamping element.

[0053] The partial area may be located at the corners and / or edges of the saddle carrier clamping surface and may comprise less than half of the saddle carrier clamping surface.

[0054] The angle between the partial surface and the saddle carrier clamping surface can be more than 135° and preferably 150°.

[0055] The individual surfaces can engage with the saddle carrier when attaching the mounting device, thus preventing the mounting device from shifting. This makes the mounting device more secure in use.

[0056] The partial surfaces can be manufactured by bending. Alternatively, other elements or profiles could be applied to the saddle beam clamping surface instead of the partial surfaces; these could engage with the wooden beam and thus prevent the fastening device from shifting.

[0057] The safety net fastening element can include a hook. A hook allows for quick and easy attachment and removal of the safety net from the fastening device. The hook could be C-shaped, which would facilitate quick attachment and removal of the safety net while simultaneously making unintentional detachment more difficult. The two ends of a C-shaped hook could be bent to the side. Alternatively, the hook could be a carabiner, which would increase safety against unintentional detachment of the safety net. Furthermore, the safety net fastening element could include a hole or eyelet, allowing the safety net to be connected to the fastening device with a loose hook, particularly a loose carabiner.

[0058] The fastening device may comprise steel, preferably galvanized steel.

[0059] A steel fastening device is robust, cost-effective, and weldable. Zinc plating the steel can further increase the fastening device's corrosion resistance. It is also conceivable to protect the steel from corrosion using other suitable methods, such as blackening, painting, or powder coating. In one embodiment, the fastening device can be made of stainless steel.

[0060] It is also conceivable that the fastening device comprises aluminum, in particular anodized aluminum, or other metallic materials.

[0061] Furthermore, it is conceivable that part of the guide element is coated with plastic, in particular an elastomer, to improve the grip of the fastening device.

[0062] The object of the invention is further achieved by a method for attaching a fastening device to at least one support. The attachment can include positioning at least one surface of the fixed clamping element on the upper surface of the support. The movable clamping element can then be wedged between the underside of the support and the stop element by the wedge device, whereby the fastening device clamps the support between the fixed clamping element and the movable clamping element.

[0063] Positioning the fastening device, in particular the fixed clamping element on the beam, can be carried out by a person on the floor below. The guide element can partially rest against the beam. The sliding clamping element can be clamped in place by striking a striking surface of the wedge device with a hammer one or more times.

[0064] It is also conceivable that the mounting device is attached to two supports, in particular a yoke support and a saddle support. The mounting device can be positioned so that a yoke support clamping surface rests on the yoke support and a saddle support clamping surface rests on a flange of the saddle support.

[0065] The object of the invention is further achieved by a method for releasing a fastening device from at least one support. The movable clamping element can be released and the fastening device can be removed from the support.

[0066] Releasing the fastening device from at least one beam can be carried out by a person on the floor below. The sliding clamping element can be moved by shifting the wedge device. The wedge device can be moved by striking a striking surface with a hammer, where the striking surface is different from the one used for fastening. The fastening device can then be removed from the beam.

[0067] The object of the invention is further achieved by the use of a fastening device as disclosed above for fastening a fall protection net.

[0068] By using a fastening device, a fall protection net can be attached quickly and reliably to one or more supports without special tools.

[0069] The object of the invention is further achieved by a fall protection device. The fall protection device can comprise at least one fall protection net and at least four fastening devices, as described above.

[0070] In this case, a fall protection device refers to a device that is suitable for preventing a fall or reducing its effects.

[0071] At least two fastening devices can be attached to a first support beam and spaced between 0.5 m and 2.5 m apart. Two further fastening devices can also be attached to a second support beam at a distance of between 0.5 m and 2.5 m, the second support beam being substantially parallel to the first and at substantially the same height. The two supports can be spaced between 0.5 m and 4 m apart. It is conceivable that the distance between two fastening devices depends on the type of fall protection net used. However, any other arrangement of the fastening devices that allows for the secure attachment of the fall protection net is also conceivable.

[0072] The safety net can be attached to at least one safety net fastening element per fixing device. Such a fall protection device allows for quick and reliable collective fall protection.

[0073] The invention is explained in more detail in the following figures. They show: FIG 1: Perspective view of a fastening device, FIG 2: Perspective representation of the in Fig. 1 The fastening device shown does not include a sliding clamping element or a stop element. FIG 3: Front view of the in Fig. 1 shown fastening device FIG 4: Front view of the in Fig. 1 shown fastening device with yoke support, FIG 5: Front view of the in Fig. 1 shown mounting device with yoke support and saddle support, FIG 6: Side view of the in Fig. 1 shown fastening device FIG 7:Front view of a stop element, FIG 8: Front view of a double wedge, FIG 9: Front view of a simple wedge with two striking faces.

[0074] Figure 1 Figure 1 shows a perspective view of a fastening device 1. The fastening device 1 comprises a guide element 2, which is designed as a rounded rectangular hollow profile. The fixed clamping element 3 is located at the upper end of the guide element 2 and is welded to it. The stop element 5 is also welded to the guide element and projects in the same direction as the fixed clamping element 3. The stop element 5 is designed as a U-shaped profile and includes a through-hole element 21, which supports the movable clamping element 4.

[0075] The sliding clamping element 4 comprises a clamping surface 28 which faces the fixed clamping element 3. The clamping surface 28 is curved towards the sliding clamping element on the side facing away from the guide element. The curved part 26 of the clamping surface 28 prevents the unintentional displacement of a support (not shown). The sliding clamping element 4 also comprises a spacer element 18 which has a rectangular cross-section and is 100 mm high. The spacer element 18 is mounted in the feedthrough element 21 of the stop element 5. The spacer element 18 includes an elongated hole in which the wedge device 7 is mounted. The sliding clamping element 4 also comprises a lower stop surface 20, which prevents the sliding clamping element 4 from being moved out of the feedthrough element 21 of the stop element 5. The lower stop surface 20 is welded to the spacer element 18.

[0076] The wedge device 7 is designed as a double wedge 14 with two opposing striking surfaces 8. The striking surfaces 8 are widened and welded to the double wedge 14.

[0077] The fastening device 1 comprises two fall protection net fastening elements 6, which are designed as C-shaped hooks. The fall protection net fastening elements 6 are welded to the guide element 2 on two opposing surfaces and at the same height. The fastening device is made of galvanized steel.

[0078] Figure 2 shows the same perspective representation of the in Fig. 1 shown fastening device 1, but without sliding clamping element 4 and without stop element 5.

[0079] The elongated through-hole element 21 has a width of 12 mm. The in Fig. 1The spacer element 18 of the movable clamping element 4 shown has a width of 10 mm, which allows the movable clamping element 4 to be tilted about the axis 16.

[0080] Figure 3 shows the front view of the in Fig. 1 The fastening device 1 shown. The fixed clamping element 3 comprises three surfaces 9, one surface 9 being configured as a yoke clamping surface 12, one surface 9 as a saddle clamping surface 13, and one surface 9 as a non-clamping surface 27. The non-clamping surface 27 is constructed like the saddle clamping surface 13. The parallel distance between the yoke clamping surface 12 and the saddle clamping surface 13 is 40 mm, with the saddle clamping surface 13 being located closer to the upper end of the guide element 2. The saddle clamping surface 13 and the non-clamping surface 27 comprise angled partial surfaces 11 at the corners, which are inclined towards the movable clamping element 4.

[0081] The fall protection net fastening elements 6, designed as C-shaped hooks, each comprise curved ends, wherein the lower end of the C-shaped hook is inclined 15° to one side and the upper end of the C-shaped hook is inclined 15° to the opposite side.

[0082] Figure 4 shows the front view of the in Fig. 1 The fastening device 1 shown is attached to a support 101. The support 101 is designed as a yoke support 102. The yoke support clamping surface 12 rests on the upper surface 106 of the yoke support 102. The clamping surface 28 of the movable clamping element 4 rests against the lower surface 105 of the yoke support 102. The wedge device 7, which is designed as a double wedge 14, is clamped between the movable clamping element 4 and the stop element 5. The yoke support 102 is thereby clamped between the fixed clamping element 3 and the movable clamping element 4.

[0083] Figure 5 shows the front view of the in Fig. 1 The fastening device 1 shown is attached to two beams 101. One beam 101 is designed as a yoke beam 102 and the other as a saddle beam 103. The yoke beam clamping surface 12 rests on the upper surface 106 of the yoke beam 102. The saddle beam clamping surface 13 rests on a flange 107 of the saddle beam 103. The clamping surface 28 of the movable clamping element 4 rests against the lower surface 105 of the yoke beam 102. The wedge device 7, which is designed as a double wedge 14, is clamped between the movable clamping element 4 and the stop element 5. The yoke beam 102 is thereby clamped between the fixed clamping element 3 and the movable clamping element 4. The saddle carrier 103 is thereby clamped between the fixed clamping element 3 and the yoke carrier 102.

[0084] Figure 6shows a side view of the in Fig. 1 The fastening device shown is 1. The height H of the fastening device is 700 mm. The angle between the partial surface 11 and the saddle carrier clamping surface 13 is 150° in each case.

[0085] Figure 7 Figure 1 shows a front view of a stop element 5. The stop element 5 is designed as a U-shaped profile and includes a feedthrough element 21 at its base, which is designed as an elongated hole. The U-shaped profile is 25 mm wide, 30 mm high, and made of 4 mm thick galvanized steel. The feedthrough element 21 has a width of 12 mm. The stop element 5 is made of galvanized steel.

[0086] Figure 8Figure 1 shows a front view of a wedge device 7, which is designed as a double wedge 14. The double wedge 14 is designed such that the smallest dimension of the wedge is located in the middle. The double wedge is 210 mm long and 45 mm high and has a non-visible width of 8 mm. The double wedge 14 has two wedge angles α, each of which is 17°, and two opposing striking surfaces 8. The double wedge 14 is made of galvanized steel.

[0087] Figure 9Figure 1 shows a front view of a wedge device 7, which is designed as a wedge 15. The wedge 15 is 105 mm long and 45 mm high and has a non-visible width of 8 mm. The wedge 15 has a wedge angle α of 18° and two opposing striking surfaces 8. One striking surface 8, suitable for releasing the fastening device, is located on the side of the smallest dimension 22 of the wedge 15 and is welded on, thus achieving two striking surfaces 8 of equal size. The wedge 15 is made of galvanized steel.

Claims

1. Fastening device (1) for fastening to a support (101) comprising a guide element (2), a fixed clamping element (3) arranged at a first end of the guide element, a clamping element (4) axially displaceable in a longitudinal direction of the guide element, wherein the displaceable clamping element (4) can be fixed to a stop element (5), and at least one fall protection net fastening element (6) characterized by the fact that the fastening device (1) can be fastened to a support (101) by means of a wedge device (7) between the movable clamping element (4) and the stop element (5).

2. Fastening device (1) according to claim 1, characterized by the fact that the wedge device (7) is designed as a wedge (15) which comprises two opposing striking surfaces (8).

3. Fastening device (1) according to claim 1, characterized by the fact thatthe wedge device (7) is designed as a double wedge (14) which comprises two opposing striking surfaces (8) and wherein the smallest extent of the wedge is arranged essentially in the middle.

4. Fastening device (1) according to one of the preceding claims, characterized by the fact that the guide element (2) has a round or rounded rectangular cross-section and is in particular hollow.

5. Fastening device (1) according to one of the preceding claims, characterized by the fact that the guide element (2) comprises a height H between 350 mm and 1500 mm, preferably between 500 mm and 900 mm, in particular 700 mm.

6. Fastening device (1) according to one of the preceding claims, characterized by the fact that the stop element (5) is designed as a U-shaped profile, wherein the U-shaped opening is directed away from the fixed clamping element (3) and the base of the profile includes a feed-through element (21).

7. Fastening device (1) according to one of the preceding claims, characterized by the fact that the movable clamping element (4) can be tilted about an axis (16) parallel to the longitudinal extension of the stop element (5).

8. Fastening device (1) according to one of the preceding claims, characterized by the fact that the fixed clamping element (3) comprises at least one surface (9), in particular three surfaces (9), wherein at least one surface (9) is designed as a yoke support clamping surface (12) or as a saddle support clamping surface (13).

9. Fastening device (1) according to one of the preceding claims, characterized by the fact that the saddle carrier clamping surface (13) comprises at least one, preferably two, partial surface (11) inclined towards the movable clamping element (4).

10. Fastening device (1) according to one of the preceding claims, characterized by the fact that the fall protection net fastening element (6) includes a hook.

11. Fastening device (1) according to one of the preceding claims, characterized by the fact that the fastening device (1) comprises steel, preferably galvanized steel.

12. Method for attaching a fastening device (1) according to one of claims 1-11 to at least one support (101), characterized by the fact that at least one surface (9) of the fixed clamping element (3) is positioned on a carrier top and the movable clamping element (4) is subsequently clamped by the wedge device (7) between a carrier bottom and the stop element, whereby the fastening device (1) clamps the carrier (101) between the fixed clamping element (3) and the movable clamping element (4).

13. Method for releasing a fastening device (1) according to one of claims 1-11, from at least one support (101), characterized by the fact that the sliding clamping element (4) is released and the fastening device (1) is removed from the carrier (101).

14. Use of a fastening device (1) according to one of claims 1-11 for fastening a fall protection net.

15. Fall protection device comprising at least one fall protection net and at least four fastening devices (1) according to any one of claims 1-11.

Images