Safety device for ceiling formwork

Abstract

The invention relates to a safety device (1) for ceiling formwork, which comprises a first grid (2) along a first edge (3) of which is arranged a projection (4) that protrudes with respect to a plane spanning the first grid (2), in order to form a stop for formwork panels (5) of the ceiling formwork abutting against the safety device (1).

Description

[0001] Safety device for ceiling formwork

[0002] The invention relates to a safety device for a ceiling formwork, which has a first grid. Furthermore, the invention relates to methods for removing formwork panels from a ceiling formwork, which can be used in particular in conjunction with the safety device according to the invention.

[0003] When erecting a slab formwork, formwork panels are typically laid out on a structure consisting of vertical formwork props and horizontal formwork supports, preferably designed as longitudinal and transverse beams. The laying of the formwork panels is generally carried out manually by one or more installers. This poses a risk for the installer of falling through the coarse-meshed arrangement of the circuit supports, which are not yet covered with formwork panels.

[0004] Grid and net-based safety devices are known from the state of the art.

[0005] Document EP 3 231 961 A1 shows a horizontal formwork system and safety methods for installing formwork panels in a horizontal formwork system.

[0006] Document DE 10 2017 123 014 A1 discloses a spacer element for supporting two parallel yoke beams of a ceiling formwork supported on ceiling props, as well as a fall protection system for a ceiling formwork with the spacer element. One object of the invention is to provide an improved safety device for ceiling formwork. A further object is to provide an improved method for removing formwork panels from a ceiling formwork.

[0007] This object is achieved according to the invention by a safety device for a ceiling formwork and a method for removing formwork panels from a ceiling formwork according to the independent claims. Advantageous embodiments are claimed in the subclaims. A first aspect of the invention relates to a safety device for a ceiling formwork, which has a first grid on which a projection is arranged along a first edge. This projection projects with respect to a plane spanning the first grid in order to form a stop for formwork panels of the ceiling formwork against the safety device.

[0008] A second aspect of the invention relates to a safety device system comprising a plurality of safety devices according to the first aspect of the invention, wherein adjacent safety devices are connected along the edges which are arranged at least substantially perpendicular to the respective first edge, in particular at running channels.

[0009] A third aspect of the invention relates to a ceiling formwork arrangement with formwork supports, formwork props, formwork panels and at least one safety device according to the first aspect of the invention or a safety device system according to the second aspect of the invention, wherein the formwork supports are supported by the formwork props and the formwork panels and the at least one safety device lie on the formwork supports, wherein the at least one safety device is arranged in such a way that in each case the first edge is aligned at least substantially perpendicular to a longitudinal direction of the formwork supports.

[0010] A fourth aspect of the invention relates to a method for removing formwork panels from a ceiling formwork, comprising the following work steps: a) placing a safety device for a ceiling formwork, which has a flat first grid, on which a projection is arranged along a first edge, which projects with respect to a plane spanning the first grid, in particular according to one of claims 1 to 10, on an arrangement of several at least substantially parallel formwork supports in such a way that the first edge is oriented perpendicular to a longitudinal direction of the formwork supports and the stop points upwards and is aligned to the side of the formwork supports from which the formwork panels are to be removed; b) positioning a first formwork panel in such a way that an edge of the first formwork panel comes into contact with the upstand of the safety device;and c) moving the assembly of the first formwork panel and safety device in the longitudinal direction of the formwork supports until the first formwork panel can be placed on the formwork supports or rests on them.;

[0011] A fifth aspect of the invention relates to a method for removing formwork panels from a ceiling formwork, comprising the following work steps: a) placing a safety device system which has a first safety device and a second safety device for a ceiling formwork, each of which has a flat first grid on which a projection is arranged along a first edge, which projects with respect to a plane spanned by the at least one first grid, wherein the first grids have guide channels on each of the two edges, which are arranged at least substantially perpendicular to the first edge, wherein the two safety devices are connected to the guide channels; b) positioning a first formwork panel in such a way that an edge of the first formwork panel comes into contact with the projection of the first safety device;c) Moving the assembly comprising the first formwork panel and the first safety device in the longitudinal direction of the formwork supports until the first formwork panel can be placed on the formwork supports or is resting thereon; d) Positioning a second formwork panel in such a way that one edge of the second formwork panel comes into contact with the upstand of the second safety device; and e) Moving the assembly comprising the second formwork panel and the second safety device in the longitudinal direction of the formwork supports until the second formwork panel can be placed on the formwork supports or is resting thereon.

[0012] The term “flat” in the sense of the invention preferably means having an infinite radius of curvature.

[0013] A plurality within the meaning of the invention is at least two.

[0014] The invention is based on the realization that areas of the formwork construction in which no formwork panels have yet been laid should be covered for the safety of the formwork panel installers.

[0015] The invention pursues the approach of covering the edge area of ​​a ceiling formwork that is already covered with formwork panels, which is dangerous for the installers, with a grating. The grating is part of a safety device characterized by a projection against which adjacent formwork panels can come into contact.

[0016] The grid is arranged so that it can be moved on the formwork supports, so that a fitter can move it by the dimension of a formwork panel with the help of a formwork panel, which is placed with the front edge against the projection of the grid, whereupon the formwork panel is placed on the formwork supports.

[0017] The projection prevents an adjacent formwork panel from sliding over the grid. This allows a fitter to push formwork panels "from behind" in the direction of installation of the slab formwork, with the safety device being moved along with the respective formwork panel. The invention offers a simple and cost-effective solution for securing the formwork installation process using slab formwork. By providing the projection, the safety device can be moved in a single operation along with the removal of the formwork panels. In particular, the fitters' workflow is not disrupted by moving the safety device.

[0018] Preferably, the first grid is flat. This allows it to be placed particularly easily on formwork supports and also stored when not in use. Further preferably, the projection is formed integrally with the grid. Further preferably, the projection is formed by an upturned edge of the grid. In this variant, the safety device is particularly cost-effective to manufacture. Furthermore, its one-piece construction makes it particularly strong. Further preferably, the projection extends over the entire length of the first edge. This creates a particularly good stop for the formwork panels.

[0019] In an advantageous embodiment of the safety device, the latter comprises a second grid, wherein the first grid is pivotally connected to the second grid along a second edge which is opposite the first edge and runs at least substantially parallel thereto.

[0020] Preferably, the second grid lies in a first position in the plane spanned by the first grid. Further preferably, the plane is spanned by the first grid and the second grid.

[0021] Further preferably, the second grid is pivotable between a first position in which it forms a single plane with the first grid and a second position in which it forms a further plane to the first grid.

[0022] This has the advantage that the protective function is provided right up to the edges of the ceiling formwork, in that before reaching an edge of the ceiling formwork, the first grid can be lifted in a first step and further formwork panels can be inserted underneath, and in a second step the first grid can be folded onto the second grid, and these two grids can in turn be lifted and further formwork panels can be inserted underneath.

[0023] In a further advantageous embodiment of the safety device, the projection has a greater extension in the direction perpendicular to the plane than a thickness of a formwork panel which is to come into contact with the projection, in particular an extension of approximately twice the thickness.

[0024] Preferably, the projection has an extension in the direction perpendicular to the plane of more than about 21 mm, preferably more than about 27 mm, more preferably about 42 mm, most preferably about 54 mm.

[0025] This has the advantage that the front edge of a formwork panel, which is guided by a fitter over a formwork panel that has already been laid down, can be securely placed on the projection of the grid.

[0026] In a further advantageous embodiment of the safety device, it has guide elements which are arranged on a side of the plane spanned by the first grid and / or the second grid, facing away from the upstand.

[0027] The guide elements ensure lateral guidance of the safety device along the formwork supports. The safety device cannot therefore slip sideways, which would require its alignment to be corrected. This would endanger the fitter, as they would have to move into the danger zone at the edge of the formwork, and would also interrupt the workflow during formwork installation. Irrespective of this, the alignment can also be corrected from the fitter's safe position by moving the grid over the upstand. The guide elements are preferably arranged at a distance of approximately 0.145 m, more preferably approximately 0.14 m, even more preferably approximately 0.12 m, and most preferably approximately 0.10 m from the two edges of the first grid and / or the second grid, which run at least substantially perpendicular to the first edge.The two edges preferably form the largest extent of the grid in the direction perpendicular to the first edge.

[0028] This has the advantage that the guide elements can be easily threaded between the formwork supports, while still ensuring sufficient lateral guidance when moving.

[0029] In a further advantageous embodiment of the safety device, the first grid and the second grid have guide elements. If both grids of a safety device have guide elements, particularly good guidance of the safety device along the formwork supports is ensured. In a further advantageous embodiment of the safety device, the guide elements are profiles, in particular rails or round profiles, which run at least substantially perpendicular to the first edge.

[0030] This has the advantage that inexpensive and widely available standard parts, especially standard profiles, can be used.

[0031] In a further advantageous embodiment of the safety device, the first grid and / or the second grid has at least two layers of grid bars, wherein at least grid bars of the layer which are arranged on a side facing away from the projection are round.

[0032] This has the advantage that the grids can be easily moved on the formwork supports. In a further advantageous embodiment of the safety device, the first grid and / or the second grid has at least two layers of grid bars, wherein at least the grid bars of the layer arranged on a side facing away from the projection are aligned at least substantially parallel to the first edge.

[0033] This also has the advantage of simplifying the movement of the grids on the formwork supports. When used as intended, in this configuration, the grid bars arranged perpendicular to the longitudinal axes of the formwork supports rest on the formwork supports.

[0034] In a further advantageous embodiment of the safety device, the first grid and / or the second grid are rectangular and preferably the first edge and / or the second edge has an edge length Li of approximately 1.0 m to 3.5 m, preferably a length of approximately 2.0 to 2.5 m and most preferably of approximately 2.0 m, wherein preferably the two edges of the first grid and / or the second grid, which run at least substantially perpendicular to the first edge, have an edge length L2, L3 of approximately 0.50 m to 1.5 m, preferably of approximately 1 m.

[0035] This has the advantage of ensuring good interaction between the grids and the formwork panels, which usually have the same or similar dimensions, particularly when supporting and folding upon reaching an end of an area to be formed. In this case, the safety device can also be arranged on similarly dimensioned, especially slightly larger, formwork panels so that the grids can be moved along a single "track" of consecutively arranged formwork panels. This is particularly advantageous when several "tracks" of formwork panels are arranged side by side, as is common with slab formwork.

[0036] In a further advantageous embodiment of the safety device, the two edges of the first grid, which run at least substantially perpendicular to the first edge, have a greater edge length L2 than the corresponding edges of the second grid L3, such that the first grid can be folded onto the second grid on the side of the projection. This has the advantage that the folded grids form a compact unit, and furthermore, the second grid does not protrude beyond the area to be sheathed and potentially strike a boundary located there.

[0037] In a further advantageous embodiment of the safety device, the first grid and / or the second grid has running channels on the two edges which are arranged at least substantially perpendicular to the first edge in order to connect the safety device to further safety devices.

[0038] This has the advantage that continuous protection against falling can be ensured even in a direction perpendicular to the first edge. Furthermore, the individual safety devices can be moved independently of one another in the direction of the formwork supports when used as intended. In a further advantageous embodiment of the safety device, a mesh size of the first grid and / or the second grid is designed such that an adult cannot fall through the mesh, with the mesh size preferably being approximately 12 cm to approximately 15 cm.

[0039] This offers the advantage of high safety with minimal use of materials and low weight of the safety device.

[0040] In a further advantageous embodiment of the method for removing formwork panels from a ceiling formwork according to the fourth aspect of the invention, this comprises the following further work steps: d) positioning a second formwork panel such that an edge of the second formwork panel comes into contact with the projection of the safety device; and e) moving the entire assembly comprising the second formwork panel and safety device in the longitudinal direction of the formwork supports until the second formwork panel can be placed on the formwork supports. These process steps can be repeated as often as required until a ceiling formwork is completed. By continuing the method according to the fourth aspect, an unlimited number of formwork panels can be lined up to form a ceiling formwork. The work safety of the fitter is always guaranteed.Moving the safety device to a new point is fully integrated into the process of laying the formwork panels.

[0041] In further advantageous embodiments of the method for removing formwork panels from a slab formwork according to the fourth or fifth aspect of the invention, wherein the safety device further comprises a flat second grid, wherein the first grid is pivotally connected to the second grid along a second edge which is opposite the first edge and runs at least substantially parallel thereto, the work steps b) and c) or b) to f) are repeated until the safety device reaches an end of an area to be formworked, wherein the methods further comprise the following work steps: d) positioning a further formwork panel under the first edge of the first grid in such a way that the first grid is pivoted upwards; e) moving the further formwork panel in the longitudinal direction of the formwork supports under the first grid and / or the second grid;and f) folding the first grid to the second grid.;

[0042] By inserting the additional formwork panel under the first grid and folding the first grid over, the installer can be protected right up to the edge of a slab formwork. In addition to the first grid and the second grid of the safety device, additional first grids and second grids of other safety devices can be installed, depending on the width of the area to be formed.

[0043] In a further advantageous embodiment of the method for removing formwork panels of a slab formwork according to the fifth aspect of the invention, this comprises the following further working steps: g) positioning a further formwork panel under an edge of the second grid, at which the second grid is connected to the second edge of the first grid, in such a way that the second grid is pivoted upwards; h) moving the further formwork panel in the longitudinal direction of the formwork supports under the second grid; and i) removing the safety device from the formwork supports.

[0044] By inserting an additional formwork panel beneath the second grid, the installer can be protected up to the edge of a slab formwork. Generally, the additional formwork panel must be cut to size.

[0045] In a further advantageous embodiment of the method for removing formwork panels from a ceiling formwork according to the fifth aspect of the invention, this comprises the following further work steps: j) positioning a third formwork panel in such a way that an edge of the third formwork panel comes into contact with the projection of the first safety device; k) moving the entirety of the third formwork panel and the first safety device in the longitudinal direction of the formwork supports until the third formwork panel can be placed on the formwork supports; and / or l) stepping onto the second formwork panel; m) positioning a fourth formwork panel in such a way that an edge of the fourth formwork panel comes into contact with the projection of the second safety device;and n) moving the assembly comprising the fourth formwork panel and the second safety device in the longitudinal direction of the formwork supports until the fourth formwork panel can be placed or rests on the formwork supports;

[0046] In this way, the safety device can be gradually moved across its entire width in the direction of the formwork. The installer is always protected across the entire width of the formwork. Further features and advantages of the invention will become apparent from the following description with reference to the figures. They show, at least partially schematically:

[0047] Figure 1 shows a first embodiment of a safety device in a perspective view;

[0048] Figure 2 shows a second embodiment of a safety device in a

[0049] top view;

[0050] Figure 3 shows a first embodiment of a safety device system in a perspective view;

[0051] Figure 4 shows a first embodiment of a method for distributing formwork panels;

[0052] Figure 5 shows a second embodiment of a safety device system in a perspective view;

[0053] Figure 6 shows the first embodiment of a safety device according to Figure 1 in three side views a, b, c, which illustrate the functioning of the safety device;

[0054] Figure 7 shows a second embodiment of a method for distributing formwork panels;

[0055] Figure 8 shows an embodiment of a ceiling formwork arrangement in a

[0056] top view;

[0057] Figure 9 shows an embodiment of a ceiling formwork arrangement in a

[0058] Cross-sectional view in plane AA according to Fig. 6; Figure 10 shows an embodiment of a ceiling formwork arrangement in a cross-sectional view in plane BB according to Fig. 6;

[0059] Figure 11 shows an embodiment of a safety device in a side view;

[0060] Figure 12 shows an embodiment of a safety device in a side view; and

[0061] Figure 13 shows the embodiment of a safety device from Fig. 3 in an enlarged view A.

[0062] Figure 1 shows a first embodiment of a safety device 1 in a perspective view.

[0063] The safety device 1 has a first grille 2, on the first edge 3 of which there is a projection 4. Preferably, the projection is designed as an upstand of the first grille 2, as shown in Fig. 1. The projection 4 preferably extends over at least substantially the entire length of the first edge 3. In particular, the projection 4 can also be formed from several partial projections in sections along the first edge 3. A second grille 6 is preferably adjacent to the second edge 7. The grilles 2, 6 can be folded towards one another around the second edge 7, for example using hinges. These hinges are preferably designed as metal rings.

[0064] On the lateral edges of the grids 2, 6 there are preferably running channels 9, which can be used for connecting to further safety devices 1 (not shown).

[0065] Figure 2 shows a second embodiment of a safety device 1 in a plan view. This safety device also has a first grid 2, on whose first edge 3 there is a projection 4. The second grid 6 is connected to the second edge 7. The grids 2, 6 can be folded toward each other around the second edge 7. On the lateral edges of the grids 2, 6 there are respective channels 9, which can be used to connect to additional safety devices 1 (not shown).

[0066] In contrast to the first embodiment according to Fig. 1, the second embodiment has guide elements 8 which are fastened to the first grid 2 and / or second grid 6, are spaced at a distance d2 of preferably approximately 14.5 cm from the lateral edges of the grids 2, 6 and run at least substantially perpendicular to the first edge 3.

[0067] The guide elements 8 are preferably bent or kinked at their ends in such a way that at least on the side facing away from the first edge 3 a steering section is arranged which is bent or kinked to a central axis perpendicular to the first edge 3 of the grids 2, 6.

[0068] The steering section of the guide elements 8 serves as a ramp and facilitates threading between the formwork supports 11 (not shown). Preferably, the guide elements 8 are curved, as shown in Fig. 2, wherein the curvature is concave relative to the lateral edges of the grids 2, 6 and / or the ends are bent away relative to the lateral edges of the grids 2, 6. Preferably, a mesh width di is selected such that an adult cannot slide through the mesh, preferably between approximately 12 cm and approximately 15 cm.

[0069] Figure 3 shows a first embodiment of a safety device system 20 in a perspective view.

[0070] Three safety devices 1a, 1b, 1c are arranged side by side on formwork supports 11, and adjacent safety devices 1a, 1b; 1a, 1c are connected to each other at the guide channels 9. Here, too, the guide channels 9 between the safety devices 1a, 1b, 1c are preferably connected with rings or carabiners (not shown).

[0071] With reference to Fig. 4, a first method (200) for removing formwork panels (5) of a ceiling formwork by means of the safety device system 20 is explained below:

[0072] In a first work step 201, a safety device system 20, which comprises a first safety device 1a, a second safety device 1b and a third safety device 1c for a ceiling formwork, is placed on an arrangement of several formwork supports 11 aligned at least substantially parallel in such a way that the first edge 3 of the safety devices 1, 1b, 1c is aligned perpendicular to a longitudinal direction of the formwork supports 11 and the projection 4 points upwards and is aligned to the side of the formwork supports 11 from which the formwork panels 5 are to be removed.

[0073] In a second work step 202, a first formwork panel 5 is moved in such a way that an edge of the first formwork panel 5 comes into contact with the projection 4 of the first safety device 1a.

[0074] In a third work step 203, the entirety of the first formwork panel 5 and the first safety device 1a is moved in the longitudinal direction of the formwork supports 11 until the first formwork panel 5 can be placed or rests on the formwork supports 11.

[0075] This displacement process is illustrated in Fig. 3: A formwork panel 5 is engaged with the projection 3 of the first grid 2. If the first safety device 1a is displaced further in the longitudinal direction of the formwork supports 11, the formwork panel 5 can be inserted flat. The guide channels 9 are interconnected in such a way that the first safety device 1a can only precede a further safety device 1b; 1c connected to it via the guide channels 9 by a distance in the longitudinal direction of the formwork supports that corresponds to the length of a guide channel (9). Preferably, the length of the guide channels (9) corresponds to the lateral edge length L2, L3 of the grids 2, 6.

[0076] In a fourth work step 204, a second formwork panel 5 (not shown) is positioned in such a way that an edge of the second formwork panel 5 comes into contact with the projection 4 of the second safety device 1.

[0077] In a fifth work step 205, the entirety of the second formwork panel 5 and the second safety device 1 b is moved in the longitudinal direction of the formwork supports 11 until the second formwork panel 5 can be placed or rests on the formwork supports 11.

[0078] In a sixth work step 206, the fitter preferably enters the first formwork panel.

[0079] In a seventh work step 207, a third formwork panel 5 is positioned in such a way that an edge of the third formwork panel 5 comes into contact with the projection of the first safety device 1a.

[0080] In an eighth work step 208, the entire assembly of the third formwork panel and the first safety device is moved in the longitudinal direction of the formwork supports until the third formwork panel can be placed on the formwork supports.

[0081] In a ninth work step 209, the second formwork panel 5 is entered.

[0082] In a tenth work step 210, a fourth formwork panel is positioned in such a way that an edge of the fourth formwork panel 5 comes into contact with the projection of the second safety device.

[0083] In an eleventh work step 211, the entirety of the fourth formwork panel 5 and the second safety device 1 b is moved in the longitudinal direction of the formwork supports until the fourth formwork panel 5 can be placed or rests on the formwork supports.

[0084] This process is repeated with the safety devices 1a, 1b, 1c until the entire slab formwork is deployed. Additionally, upon reaching one end of the area to be formed, the first grids can be folded over and the individual safety devices 1a, 1b, 1c can be removed from the formwork supports 11, as explained below with reference to Figures 6 and 7.

[0085] Figure 5 shows a second embodiment of a safety device system 20 in a perspective view.

[0086] Here, formwork panels 5 of a smaller width are used than in the embodiment shown in Fig. 3. These are generally used in a compensation area. The two safety devices 1 are arranged overlapping. This allows the safety device system 20 to be adapted to the width of an area to be formed. Preferably, the overlapping safety devices are also connected with rings or carabiners.

[0087] Figure 6 shows the first embodiment of a safety device 1 according to Fig. 1 in three side views a, b, c, which illustrate the functioning of the safety device.

[0088] A second method 100 for removing formwork panels 5 of a ceiling formwork is explained below with reference to Fig. 7:

[0089] In a first work step 101, a safety device 1 is placed on an arrangement of several formwork supports 11 (not shown) aligned at least substantially parallel in such a way that the first edge 3 is aligned perpendicular to a longitudinal direction of the formwork supports 11 and the projection 4 points upwards and is aligned to the side of the formwork supports 11 from which the formwork panels 5 are to be deployed.

[0090] In a second work step 102, a first formwork panel 5a is positioned in such a way that an edge of the first formwork panel 5a comes into contact with the projection 4 of the safety device 1.

[0091] In a third work step 103, the entire assembly of the first formwork panel 5a and the safety device 1 is displaced in the longitudinal direction of the formwork supports 11 until the first formwork panel 5a can be placed or rests on the formwork supports 11. This state is illustrated in Fig. 6a.

[0092] In a fourth work step 104, the first formwork panel 5a is preferably entered by a fitter.

[0093] In a fifth work step 105, a second formwork panel 5b is positioned such that an edge of the second formwork panel 5b comes into contact with the projection 4 of the safety device 1. This is also shown in Fig. 6a.

[0094] In a sixth work step 106, the entire assembly of the second formwork panel 5b and safety device 1 is displaced in the longitudinal direction of the formwork supports 11 until the second formwork panel can be placed on the formwork supports. The front edge of the second formwork panel 5b engages the projection 4 of the first grid 2 of the safety device 1. This process is indicated by the arrows in Fig. 6a.

[0095] Work steps 104 to 106 are preferably repeated until the safety device reaches one end of an area to be formed. In a seventh work step 107, a third formwork panel 5c is positioned below the first edge of the first grid 2 in such a way that the first grid 2 is pivoted upward. This state is illustrated in Fig. 6b.

[0096] In an eighth work step 108, the third formwork panel 5c is pushed under the first grid in the longitudinal direction of the formwork supports. Figure 6b shows this pushing of a formwork panel 5 under the first grid 2. For this purpose, the first grid 2 is slightly raised. This step is carried out, as shown in Fig. 6b, when one end of the area to be formed is reached and the safety device 1 can no longer be moved in the longitudinal direction of the formwork supports, for example due to reaching an already existing wall panel or wall formwork 13. Subsequently, in the embodiment shown, a fourth formwork panel 5d is pushed under the first grid 2.

[0097] In a ninth work step 109, the first grid 2 is folded over to form the second grid 6. This state is shown in Fig. 6c. The entire assembly of the first grid 2 and the second grid 6 can now be lifted again, and additional formwork panels (not shown) can be inserted underneath the safety device 1 in a tenth and eleventh work step 110, 111 until the entire area to be formed is covered with formwork panels 5. The safety device 1 can then be removed in a twelfth work step 112.

[0098] Figure 8 shows an embodiment of a ceiling formwork arrangement in a plan view.

[0099] The safety device 1 shown corresponds to the embodiment from Fig. 2. Formwork supports 11 are also shown. The formwork supports 11 are preferably spaced apart by approximately 50 cm. In areas at both ends of the safety device 1 in the longitudinal direction of the formwork supports 11, the formwork supports 11 are designed as double supports. The distances ds, d4 and ds of the lattice bars of the safety device 1 in the transverse direction to the formwork supports 11 are selected such that the longitudinal lattice bars are spaced apart from the formwork supports. Preferably, ds is 24 cm, d4 is 46 cm and ds is 50 cm. The distance d2 of preferably approximately 14.5 cm of the guide elements 8 from the lateral edge of the safety device 1 is selected such that the guide element 8 ensures lateral guidance when the safety device 1 is moved on the formwork supports 11 in the area of ​​the double supports and, in particular, does not block the movement.

[0100] Figure 9 shows the embodiment of a ceiling formwork arrangement 10 in a cross-sectional view according to the plane AA of Fig. 8.

[0101] Visible are a plurality of parallel formwork supports 11 on which two safety devices 1 are placed side by side. The formwork supports 11 are preferably each supported by formwork props. Formwork props are not shown in this view.

[0102] Figure 10 shows the embodiment of a ceiling formwork arrangement 10 in a cross-sectional view according to the plane BB of Fig. 8.

[0103] Shown are a plurality of parallel formwork supports 11 on which two safety devices 1 are placed side by side. In the area of ​​the lateral ends of the safety devices 1, the formwork supports 11 are designed as double supports. The formwork supports 11 are preferably each supported by formwork props 12. Preferably, the formwork supports 11 rest on yoke supports, which are supported by formwork props 12.

[0104] Figure 11 shows an embodiment of a safety device 1 in a side view.

[0105] A height l_3 of the projection 4 is preferably greater than the thickness of a formwork panel 5 (not shown), preferably approximately twice the thickness. Also visible are guide elements 8, which are attached to the grids 2, 6 in such a way that they are located below the grids 2, 6 when they are placed on formwork supports 11 (not shown) as intended.

[0106] Figure 12 shows the embodiment of a safety device from Fig. 9 in a side view, wherein the second grid 2 is folded onto the first grid 6.

[0107] In the embodiment shown, the first grid 2 has an identical or greater edge length than the second grid 6. In other advantageous embodiments, as shown for example in Fig. 6c, the edge length of the first grid 2 is smaller than that of the second grid 6, whereby the projection 4 stands on the second grid 6 when folded.

[0108] Figure 13 shows the enlarged section C of the folded safety device 1 from Fig. 12

[0109] It can be seen that the cross-section of the grating bars running parallel to the first edge of the first grating 2 is round. With respect to the installation position of the safety device 1 lying on formwork supports 11, the guide elements 8 are mounted below the round grating bars.

[0110] It should be noted that the exemplary embodiments are merely examples that are not intended to limit the scope of protection, applications, or structure in any way. Rather, the preceding description provides the skilled person with a guide for implementing at least one embodiment, whereby various changes, particularly with regard to the function and arrangement of the described components, can be made without departing from the scope of protection as it results from the claims and / or equivalent combinations of features.

[0111] 1 safety device

[0112] 2 first grid

[0113] 3 first edge

[0114] 4 lead

[0115] 5 formwork panel

[0116] 6 second grid

[0117] 7 second edge

[0118] 8 Guide element

[0119] 9 running channels

[0120] 10 Ceiling formwork arrangement

[0121] 11 formwork beams

[0122] 12 formwork supports

[0123] 13 Wall formwork / wall panel

[0124] 20 Safety device system

[0125] Li edge length

[0126] L2 edge length

[0127] L3 edge length

[0128] The mesh size

[0129] Ü2 distance Ü3 distance

[0130] Ü4 Distance

[0131] The distance

[0132] 100 Methods for placing formwork panels 200 Methods for placing formwork panels

Claims

A safety device (1) for a ceiling formwork, comprising a first grid (2), on which a projection (4) is arranged along a first edge (3), which projects with respect to a plane spanning the first grid (2) in order to form a stop for formwork panels (5) of the ceiling formwork against the safety device (1). The safety device (1) according to claim 1, further comprising a second grid (6), wherein the first grid (2) is pivotally connected to the second grid along a second edge (7), which lies opposite the first edge (3) and runs at least substantially parallel thereto. The safety device (1) according to claim 1 or 2, wherein the projection (4) has a greater extent in a direction perpendicular to the plane than a thickness of a formwork panel (5) which is intended to come into contact with the projection (4), in particular an extent of approximately twice the thickness.Safety device (1) according to one of the preceding claims, further comprising guide elements (8) which are arranged on a side of the plane spanned by the first grid (2) and / or the second grid, said side facing away from the projection (4). Safety device (1) according to claim 4, wherein the guide elements (8) are profiles, in particular rails or round profiles, which run at least substantially perpendicular to the first edge (3). Safety device (1) according to one of the preceding claims, wherein the first grid (2) and / or the second grid has at least two layers of grid bars, wherein at least grid bars of the layer which are arranged on a side facing away from the projection (4) are round. Safety device (1) according to one of the preceding claims, wherein the first grid (2) and / or the second grid has at least two layers of grid bars, wherein at least grid bars of the layer which are arranged on a side facing away from the projection (4) are aligned at least substantially parallel to the first edge (3). Safety device (1) according to one of the preceding claims, wherein the first grid (2) and / or the second grid are rectangular and preferably the first edge and / or the second edge have an edge length (Li) of approximately 2.00 m, wherein preferably the two edges of the first grid and / or the second grid which run at least substantially perpendicular to the first edge (3) have an edge length (L2) of approximately 1.00 m.Safety device (1) according to one of the preceding claims, wherein the first grid (2) and / or the second grid have running channels (9) on each of the two edges arranged at least substantially perpendicular to the first edge (3) in order to connect the safety device (1) to further safety devices (1). Safety device (1) according to one of the preceding claims, wherein a mesh width (dt) of the first grid and / or the second grid is designed such that an adult person cannot fall through the mesh, wherein the mesh width is preferably approximately 12 cm to approximately 17 cm, more preferably at most approximately 15 cm.A safety device system (20) comprising a plurality of safety devices (1) according to one of claims 1 to 10, wherein adjacent safety devices (1) are connected along edges arranged at least substantially perpendicular to the respective first edge (3), in particular at running channels (9). A ceiling formwork arrangement (10) comprising formwork supports (11) and at least one safety device (1) according to one of claims 1 to 10 or comprising a. Safety device system (100) according to claim 11, wherein the at least one safety device (1) and / or the formwork supports (11) are designed and arranged in such a way that the projection (4) of the at least one safety device can come into contact with formwork panels (5) of the ceiling formwork, wherein the at least one safety device preferably rests on an upper side of at least two, preferably three formwork supports.Ceiling formwork arrangement (10), in particular according to claim 12, with formwork supports (11), formwork props (12), formwork panels (5) and at least one safety device (1) according to one of claims 1 to 10 or with a safety device system (100) according to claim 11, wherein the formwork supports (11) are supported by the formwork props (12) and the formwork panels (5) and the at least one safety unit device (1) lie on the formwork supports (11), wherein the at least one safety device is arranged in such a way that in each case the first edge (3) is aligned at least substantially perpendicular to a longitudinal direction of the formwork supports (11).Method (100) for removing formwork panels (5) from a ceiling formwork, comprising the following work steps: a) placing (101) a safety device for a ceiling formwork, which has a flat first grid (2), on which a projection (4) is arranged along a first edge (3), which projects with respect to a plane which spans the first grid (2), in particular according to one of claims 1 to 10, on an arrangement of several formwork supports (11) which are aligned at least substantially parallel, in such a way that the first edge (3) is aligned perpendicular to a longitudinal direction of the formwork supports (11) and the projection (4) points upwards and is aligned to the side of the formwork supports (11) from which the formwork panels (5) are to be removed;. b) positioning (102) a first formwork panel (5) such that an edge of the first formwork panel (5) comes into contact with the projection (4) of the safety device (1); and c) displacing (103) the entirety of the first formwork panel (5) and the safety device (1) in the longitudinal direction of the formwork supports (11) until the first formwork panel (5) can be placed on or rests on the formwork supports (11). A method (200) for deploying formwork panels (5) of a ceiling formwork, comprising the following work steps: a) placing (201) a safety device system (100) comprising a first safety device (1a) and a second safety device (1b) for a ceiling formwork, each comprising a flat first grid (2) on which a projection (4) is arranged along a first edge (3), which projects with respect to a plane spanned by the at least one first grid (2),wherein the first grids (2) have running channels (9) on each of the two edges, which are arranged at least substantially perpendicular to the first edge (3), wherein the two safety devices (1) are connected at the running channels (9), in particular according to claim 11, to an arrangement of several at least substantially parallel formwork supports (11) in such a way that the first edge (3) is oriented perpendicular to a longitudinal direction of the formwork supports (11) and the projection (4) points upwards and is oriented towards the side of the formwork supports (11) from which the formwork panels (5) are to be deployed; b) positioning (202) a first formwork panel (5) in such a way that an edge of the first formwork panel (5) comes into contact with the projection (4) of the first safety device (1);, c) Moving (203) the assembly of the first formwork panel (5) and the first safety device (1) in the longitudinal direction of the formwork supports (11) until the first formwork panel (5) can be placed or rests on the formwork supports (11); d) Positioning (204) a second formwork panel (5) in such a way that a Edge of the second formwork panel (5) comes into contact with the projection (4) of the second safety device (1); and e) displacement (205) of the entirety of the second formwork panel (5) and the second safety device (1) in the longitudinal direction of the formwork supports (11) until the second formwork panel (5) can be placed or rests on the formwork supports (11).

Images