Catch screen device
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2026-04-08
AI Technical Summary
Existing safety umbrella systems are inadequate for securing the corner area between two meeting floor edges, as they either protrude and violate regulations or are complex to install, lacking a straightforward solution to cover the free space next to corners without increasing assembly effort.
A safety umbrella device with a corner safety umbrella and corner folding mechanism, which can be folded out from a compact state to cover the corner area, combined with side safety umbrellas, allowing for easy deployment and minimizing operating effort. The corner umbrella device features a corner joint axis and suspension elements for stable attachment, enabling manual or driven operation.
Effectively secures the corner area without increasing assembly complexity, ensuring that falling objects or people hit the safety net at a safe distance from the building's substructure, while allowing for easy installation and operation, including length compensation and impact force distribution.
Smart Images
Figure EP2024065370_12122024_PF_FP_ABST
Abstract
Description
[0001] Safety umbrella device
[0002] The invention relates to a safety screen device for temporary fastening to an edge region of a building, in particular a shell, for catching falling objects and / or people and for protecting objects and / or people located underneath, comprising: a first side safety screen device with a first side safety screen for arrangement on a first long side of the building, wherein the first side safety screen device has a first side folding mechanism for folding the first side safety screen in and out, a second side safety screen device with a second side safety screen for arrangement on a second long side of the building, wherein the second side safety screen device has a second side folding mechanism for folding the second side safety screen in and out.
[0003] Furthermore, the invention relates to a method for constructing such a safety umbrella device on a shell.
[0004] Such safety screen systems are used in the state of the art to secure a building shell against falling material, tools, rubble or people. In one known design, individual ceiling shoes are mounted next to an unprotected floor edge, from which a safety screen is suspended. In one design, the safety screen can also be mounted directly on the floor edge without a ceiling shoe, preferably using dowels. It is also known to arrange the safety screen on the floor edge so that it can be pivoted using folding struts. This allows the safety screen to be folded in and out as required. For example, the safety screen can be folded in and secured quickly and easily in adverse weather conditions such as strong winds or when there is a snow load. Furthermore, objects that have fallen into the safety screen can be easily removed when it is in the folded position.The safety screen is equipped with a safety net which, when unfolded, covers the free space next to the edge of the story. The folding mechanism makes operating the safety screen much easier. Unfortunately, this design is limited to securing story edges. However, there is no satisfactory solution for corners between two meeting story edges. If the safety screen is positioned so that it extends laterally beyond the edge of the building, part of the supporting structure is positioned directly next to the corner when unfolded. This contradicts the regulations, which stipulate that falling objects must always hit the safety net at a specified distance from the building and not the substructure.For this reason, special corner catch screens have already been provided, although these are very complex to install.
[0005] In contrast, the object of the present invention is to alleviate or eliminate the disadvantages of the prior art. The invention aims to effectively secure the open space adjacent to a corner area of a building without significantly increasing the installation effort.
[0006] This object is achieved with a catch screen device according to claim 1 and a method according to claim 12. Preferred embodiments are specified in the dependent claims.
[0007] According to the invention, the safety screen device comprises a corner safety screen device with a corner safety screen for arrangement at a corner region of the structure where the first longitudinal side and the second longitudinal side of the structure meet. The corner safety screen device comprises a corner folding mechanism with which the corner safety screen can be folded out from a folded state to an unfolded state.
[0008] This provides a three-part safety screen device. As in the prior art, the first and second side safety screen devices secure the first and second long sides at the edge of the structure. The corner safety screen device is mounted in the corner area between the first and second long sides and is designed to cover the free space next to the corner area. For this purpose, the corner safety screen device has a corner folding mechanism with which the corner safety screen can be folded in and out. This means that not only the first and second side safety screen devices are foldable, but also the corner safety screen device. This minimizes the operating effort.
[0009] For the purposes of this disclosure, the location and direction specifications, such as "above", "below", "horizontal", "vertical", refer to the mounted use state of the catch umbrella device on the structure.
[0010] In the unfolded state, the first and second side catch screens and the corner catch screen are each arranged lying down, preferably essentially horizontally. In the unfolded state, the first and second side catch screens and the corner catch screen cover an area with a width of preferably at least 2 meters (m), particularly preferably at least 2.5 m, in particular at least 3 m, adjacent to the edge region of the building, in particular adjacent to two storey edges of a floor of the building that preferably meet essentially at right angles to one another. In the folded state, the first and second side catch screens and the corner catch screen are preferably each arranged upright, preferably essentially vertically.
[0011] In order to be able to cover the area outside the corner edge region of the building quickly, easily and safely by folding out the corner arresting device, it is advantageous if the corner folding mechanism has a corner joint with a corner joint axis which runs at an angle, in particular at an angle of essentially 45°, to a first side joint axis of the first side folding mechanism of the first side arresting screen device and to a second side joint axis of the second side folding mechanism of the second side arresting screen device. The first and second side joint axes can therefore extend essentially in a horizontal plane parallel to the first or second long side of the building, in particular essentially parallel to a first or second story edge of a floor of the building. When transferred from the folded-in to the unfolded state (and vice versa), the first or second side arresting screen pivots about the first or second...second side joint axis. The corner joint axis extends at an angle, i.e. at an angle different from 0° and 90°, to the first or second side joint axis. Preferably, the corner joint axis runs at an angle of 30° to 60°, in particular essentially 45°, to the first or second side joint axis. To cover the free space adjacent to the corner area of the structure, it is only necessary to fold the corner safety screen device outwards, away from the structure, using the corner folding mechanism that can be operated manually or with a drive. When transferred from the folded-in to the unfolded state (and vice versa), the corner safety screen pivots about the corner joint axis.
[0012] For stable arrangement in the corner area of the building, in a preferred embodiment the corner catch screen device has a corner suspension element which can be fastened to the building. For this purpose in a preferred embodiment the corner suspension element can be connected, preferably detachably, to a corner suspension shoe which can be fastened to the building, in particular to a corner ceiling shoe. Preferably a corner ceiling shoe is provided as the corner suspension shoe, which is mounted, for example anchored, to the upper side of a first floor, in particular an upper floor, of the building. The corner ceiling shoe can have a mounting strip resting on the upper side of the floor, the longitudinal axis of which preferably extends in a horizontal plane at an angle of 30° to 60°, in particular substantially 45°, to the first and second long sides of the building.Alternatively, a column shoe can be provided as the corner suspension shoe, which is mounted, for example anchored, to a column of the building. Furthermore, a wall shoe can be provided as the corner suspension shoe, which is mounted, for example anchored, to a vertical wall of the building. The corner receiving shoe preferably has a receptacle in which the suspension element of the corner safety umbrella device can be received in a reversibly detachable manner. The receptacle can have an anti-excavation device, in particular with a movable, preferably pivotable, safety lever, with which the suspension element is secured against lifting when the anti-excavation device is secured. The corner receiving shoe is preferably designed to bear the entire weight of the corner safety umbrella device. In an alternative embodiment, the corner suspension element can also be mounted, in particular anchored, directly to the building without a suspension shoe.
[0013] In a preferred embodiment, the corner safety screen device further comprises a corner support bracket for support at a support point of the structure below the suspension shoe, wherein the corner support bracket comprises the corner joint axis. Preferably, the support point is located on the outside of another floor of the structure, preferably directly below the floor with the corner suspension shoe.
[0014] In a preferred embodiment, the corner support bracket has a first support element for support on the first long side and / or a second support element for support on the second long side of the building. The first and the second support element are preferably provided, wherein the first and the second support element have a first and a second vertical support surface for support on vertical end faces of a second floor, in particular a lower floor, on the first and second long side of the building. In plan view, the first and the second support element are preferably arranged at an angle of 90° to one another. Furthermore, the longitudinal axes of the first and the second support element can each extend at an angle of 30° to 60°, preferably substantially 45°, to the vertical.
[0015] In a preferred embodiment, the corner safety chute device has at least one folding strut, which is pivotally mounted, preferably about the corner joint axis. With the aid of the folding strut, the corner safety chute can be converted from the folded-in to the unfolded state (and vice versa).
[0016] For this purpose, the folding strut preferably engages a horizontal strut to which an outer edge (relative to the unfolded state) of the corner parachute is attached.
[0017] In a preferred embodiment, the corner catcher device has a first and a second folding strut, which are arranged so as to diverge from bottom to top, preferably at an angle of 20° to 120°, for example substantially 30°, to one another. Preferably, the first and second folding struts can be pivoted together about the corner joint axis in order to fold the corner catcher in or out.
[0018] In a preferred embodiment, the suspension element and the support bracket are connected to one another via at least one vertical strut, preferably via two vertical struts. In the assembled, use state, the at least one vertical strut extends adjacent to the structure, so that when the corner safety screen is unfolded, the vertical strut essentially does not extend below the corner safety screen. As a result, objects or persons falling into the unfolded corner safety screen cannot impact the vertical strut.
[0019] In a preferred embodiment, the first and second support elements can be locked at different heights relative to the first and second vertical struts, respectively. This allows adaptation to different floor heights of the building.
[0020] For a stable and secure connection of the first and second folding struts to the support bracket, it is advantageous if the lower ends of the first and second folding struts are connected to each other via a fork element which is mounted on the corner support bracket so that it can pivot about the corner joint axis.
[0021] When the corner safety screen is deployed, the upper ends of the first and second folding struts are pivoted outward, away from the edge of the structure. This places the corner safety screen in the open space adjacent to the corner of the structure when lying down.
[0022] To enclose the corner catch screen, it is advantageous if the corner catch screen device has a horizontal strut which connects the upper ends of the first and second folding struts.
[0023] In order to distribute impact forces when an object or a person impacts, it is advantageous if the corner safety screen device has a first connecting strut and a second connecting strut, wherein the first connecting strut is detachably connected to the first side safety screen device, preferably via a first coupling, in particular via a first screw-on coupling, and the second connecting strut is detachably connected to the second side safety screen device, preferably via a second coupling, in particular via a second screw-on coupling. The first and the second connecting strut can preferably be folded about a first or second hinge axis, which extends in a horizontal plane essentially parallel to the first or second longitudinal side of the structure.
[0024] In order to allow length compensation during unfolding, in a preferred embodiment a length-variable, in particular a flexible connection, is provided between the upper ends of the first connecting strut and the first folding strut or between the upper ends of the second connecting strut and the second folding strut.
[0025] In a preferred embodiment, the corner parachute has at least one stiffening line, wherein an inner end of the stiffening line is preferably connected to the suspension element, wherein an outer end of the stiffening line is preferably connected to an upper end of the first or second connecting strut. Preferably, two stiffening lines are provided, wherein the inner ends of the stiffening lines are connected to the suspension element of the corner parachute device and the outer ends of the stiffening lines are connected to the upper ends of the first or second connecting strut.
[0026] Preferably, two connecting lines are each attached to the at least one stiffening line, in particular substantially centrally, which preferably lead away from the stiffening line at an acute angle and preferably each end at a corner of the corner catch screen and are connected there, in particular via carabiners, preferably to the first or second side catch screen device.
[0027] In a preferred embodiment, the first or second side catch screen device has at least a first side suspension element or a second side suspension element, which can be fastened to the building. For this purpose, the first or second side suspension element can be suspended, preferably in a reversibly detachable manner, in a first side suspension shoe or a second side suspension shoe. Depending on the design, the first or second side suspension shoe can be designed as a ceiling shoe, which is mounted on top of the first floor ceiling on the first or second long side. An inner horizontal strut of the first or second side catch screen can be provided as the first or second side suspension element.
[0028] In a preferred embodiment, the first or second side catch umbrella device has at least one first side support or a second side support, which is supported, in particular on the first or second vertical end face of the second floor, on the first or second long side of the building. The first side support or the second side support is preferably connected to the first side suspension element or to the second side suspension element via a first vertical support or a second vertical support. To transfer from the folded-in to the unfolded state and vice versa, the first or second side catch umbrella device preferably has at least one first side folding strut or at least one second side folding strut, which can be pivoted about a first side hinge axis or a second side hinge axis.The second side joint axis preferably extends substantially horizontally and parallel to the first or second longitudinal side of the structure.
[0029] In a preferred embodiment, the first support, the second support, and the corner support bracket are free of rigid cross-connections. This allows the first and second side safety screen devices and the corner safety screen device to be mounted on the structure in any order and only then connected to each other.
[0030] In the method according to the invention for constructing a safety screen device in one of the embodiments described above on a building, in particular on a shell, at least the following steps are carried out: arranging the first side safety screen device on the first long side of the building,
[0031] Arranging the second side catch screen device on the second long side of the structure,
[0032] Unfolding the first side parachute,
[0033] Unfolding the second side parachute,
[0034] Arranging the corner catch screen device at the corner area between the first long side and the second long side of the structure, and
[0035] Unfolding the corner parachute.
[0036] The parachute devices can be installed in both the unfolded and folded state.
[0037] In a preferred embodiment, the first and second side safety chute devices and the corner safety chute device can be arranged in any order on the structure. Thus, either i. the corner safety chute device can be attached to the structure first, followed by the first and second side safety chute devices, or ii. the first and second side safety chute devices can be attached to the structure first, followed by the corner safety chute device, or iii. the first or second side safety chute device can be attached to the structure first, followed by the corner safety chute device, and finally the second or first side safety chute device.
[0038] The invention is explained in more detail below with reference to embodiments shown in the drawings.
[0039] Fig. 1 shows a safety screen device according to the invention with two side safety screen devices on the long sides of a building and a corner safety screen device on a corner area of the building, each in the folded state.
[0040] Fig. 2 shows the parachute device of Fig. 1 in the unfolded state.
[0041] Fig. 3A and Fig. 3B show side views of the unfolded corner safety chute device (without safety chute) of the safety chute device of Fig. 1 and 2.
[0042] Fig. 4A and Fig. 4B show detailed views of the upper area of the corner catch screen device.
[0043] Fig. 5 shows a plan view of a detail of the corner catcher device.
[0044] Fig. 6A and Fig. 6B show side views of the lower portion of the corner catcher device.
[0045] Fig. 7 shows a plan view of the corner safety screen device without a safety screen.
[0046] Fig. 8 shows a top view of the corner safety screen device with safety screen. Fig. 1 and Fig. 2 each show a safety screen device 1 which is temporarily, i.e. only during the construction phase, mounted on an edge area 2 of a building 3, in this case a shell. The safety screen device 1 can be used to catch falling objects, and if necessary also falling persons, and to protect persons or objects located below from falling persons or objects.
[0047] As can be seen from Fig. 1 and Fig. 2, the safety umbrella device 1 has a first side safety umbrella device 4 with a first side safety umbrella 5, here a first side safety net z, for arrangement on a first long side 6 of the building 3. The first side safety umbrella device 4 has a first side folding mechanism 7 for folding out the first side safety umbrella 5. In addition, the safety umbrella device 1 has a second side safety umbrella device 8 with a second side safety umbrella 8A, here a second side safety net z, for arrangement on a second long side 9 of the building 3. The second side safety umbrella device 8 has a second side folding mechanism 10 for folding out the second side safety umbrella 8A. The first side safety umbrella device 4 and the second side safety umbrella device 8 are preferably designed identically.In the exemplary embodiment shown, the first 6 and the second longitudinal side 9 are arranged at right angles to each other. The structure 3 is illustrated in the drawing by way of example with a first (here an upper) floor 3A, a second (here a lower) floor 3B, and a column 3C extending from the first floor 3A to the second floor 3B.
[0048] Fig. 1 shows the first 4 and second side catching screen devices 8, respectively, in the folded state, in which the first 5 and second side catching screen 8A protrude upwards substantially vertically from a first and second building edge, respectively, on the first 6 and second longitudinal sides 9 of the first floor 3A of the building 3.
[0049] Fig. 2 shows the first 4 and second side safety screen devices 8 in the unfolded state, in which the first 5 and second side safety screen 8A extend substantially horizontally outwards by several meters from the first and second floor edges of the first floor 3A, respectively, in order to secure the free space next to the first 6 and second longitudinal sides 9 of the first floor 3A, respectively.
[0050] As can also be seen from Fig. 1 and Fig. 2, the safety chute device 1 has a corner safety chute device 11 with a corner safety chute 12, here a corner safety net, for arrangement at a corner region 13 of the structure, at which the first longitudinal side 6, at a right angle in the illustrated embodiment, meets the second longitudinal side of the structure 3. The corner safety chute device 11 has a corner folding mechanism 14, with which the corner safety chute 12 can be folded out from a folded state (cf. Fig. 1) to an unfolded state (cf. Fig. 2). In the folded state (cf. Fig. 1), the corner parachute 12 is arranged essentially vertically in the corner region of the structure. In the unfolded state (cf. Fig. 2), the corner catch screen 12 extends essentially horizontally outwards from the corner area of the first floor 3A in order to also catch the wind generated by the first 5 orsecond side catch screen 8A to cover the essentially V-shaped free space adjacent to the corner area 13 of the first floor 3A.
[0051] As can be seen from Fig. 2 and in detail from Fig. 4A and Fig. 4B and Fig. 5, the corner safety umbrella device 11 has a corner suspension element 15, which is reversibly and detachably suspended from a corner suspension shoe 16. In the embodiment shown, the corner suspension shoe 16 is designed as a corner ceiling shoe, which is mounted on the upper side of the first floor 3A, in the corner area at the transition between the first 6 and second long side 9 of the building. The corner suspension element 15, here a profile piece, is connected via at least one, here two, vertical struts 17 to a corner support bracket 18, which is supported on a second floor 3B of the building 3.For this purpose, the corner support bracket 18 has a first support element 19 for bearing against a first, vertical end face of the second floor slab 3B on the first longitudinal side of the building 3 and a second support element 20 for supporting against a second, vertical end face of the second floor slab 3B on the second longitudinal side of the building 3. Preferably, the first support element 19 and the second support element 20 are each not anchored in the second floor slab 3B and are therefore vertically movable.
[0052] As can be further seen from Fig. 1 and Fig. 2, the corner catching umbrella device 11 also has a first folding strut 21 and a second folding strut 22, which are arranged in a V-arrangement, i.e., diverging from bottom to top. In the illustrated embodiment, the first and second folding struts 22 are arranged at an angle of, for example, substantially 30° to one another.
[0053] As can be seen in detail in Fig. 5, the lower ends of the first 21 and second folding strut 22 are connected to one another via a V-shaped fork element 23 which is mounted on the corner support bracket 18 so as to be pivotable about a corner joint axis 24. In the exemplary embodiment shown, the corner joint axis 24 extends in a horizontal plane at an angle of essentially 45° to the first or second long side of the structure. During the transition from the folded into the unfolded state, the upper ends of the first 21 and second folding strut 22 pivot outwards away from the shell 3.
[0054] As can be seen from Fig. 1 and Fig. 2, the upper ends of the first 21 and second folding struts 22 are connected to a horizontal strut 25. Thus, the first and second folding struts form an isosceles triangle with the horizontal strut 25, which absorbs the impact of an object into the corner catcher 12.
[0055] As can be seen from Fig. 2, the corner catch umbrella device 11 also has a first connecting strut 26 and a second connecting strut 27. The lower ends of the first connecting strut 26 and second connecting strut 27 are each pivotally mounted, in particular on the vertical struts 17. As illustrated in Fig. 5, the first connecting strut 26 can be pivoted about a first pivot axis 26A, which extends in the horizontal direction parallel to the first longitudinal side 6 of the structure 3. The second connecting strut 27 can be pivoted about a second pivot axis 27A, which extends in the horizontal direction parallel to the second longitudinal side 9. The upper end of the first connecting strut 26 is connected via a first coupling 28, in the illustrated embodiment via a first screw-on coupling, to an outer horizontal strut 29A (relative to the unfolded state) of the first side parachute device.The upper end of the second connecting strut 27 is connected via a second coupling 30, in the illustrated embodiment via a second screw-on coupling, to an outer horizontal strut 29B (relative to the unfolded state) of the second side catch umbrella device. When the corner catch umbrella device 11 is transferred from the folded into the unfolded state, the distance between the upper ends of the first connecting strut 26 and the first folding strut 21 or between the upper ends of the second connecting strut 27 and the second folding strut 22 is variable. For this purpose, a length-adjustable, in particular a flexible connection is provided between the upper ends of the first connecting strut 26 and the first folding strut 21 or between the upper ends of the second connecting strut 27 and the second folding strut 22.The variable-length connection is realized in particular by the shape-changing corner safety screen 12, which in the illustrated embodiment is formed by the corner safety net. Thus, by varying the deflection of the corner safety screen 12 between the connecting struts 26, 27 and the folding struts 21, 22, length compensation can be achieved during folding and unfolding.
[0056] 1 and 2, the first 4 or second side catch umbrella device 8 has at least one first side suspension element 31 or a second side suspension element 32, which is reversibly detachably suspended in a first side suspension shoe 33 or a second side suspension shoe 34, which is mounted on the top of the first floor 3A on the first 6 or second long side 9. In the exemplary embodiment shown, two first 33 or second side suspension shoes 34 are provided. Depending on the length of the first 4 or second side catch umbrella device 8, a corresponding number of first 33 or second side suspension shoes 34 can be provided. The first 31 or An inner horizontal strut 35 of the first 4 or second side catching screen device 8 is provided for each second side suspension element 32. The first 4 or.second side catch umbrella device 8 has at least one first side support 36 and one second side support 37, which is supported on the first and second vertical end faces of the second floor 3B on the first and second long sides 6 and 9 of the building 3, respectively. The first side support 36 and the second side support 37 are connected to the first side suspension element 31 and the second side suspension element 32 via a first vertical support 36A and a second vertical support 37A, respectively. In order to transfer the device from the folded-in to the unfolded state and vice versa, the first and second side catch umbrella device 8 has at least one first side folding strut 38 and at least one second side folding strut 39, which can be pivoted about a first side joint axis 40 and 41, respectively. is pivotably connected to the first vertical support 36A or to the second vertical support 37A about a second side joint axis 41.In the embodiment shown, two first 38 and two second side folding struts 39 are provided, which are pivotally mounted on two first 36A and second vertical supports 37A.
[0057] As further shown in Fig. 1 and Fig. 2, a first pull line 42 and a second pull line 43 are provided for folding the first 4 and second parachute devices 8, respectively. The corner parachute device is folded with a third pull line 44.
[0058] Fig. 8 shows a preferred embodiment of the corner safety chute 12, which is connected to the horizontal strut 25. In the embodiment shown, the corner safety chute has two stiffening lines 45. The inner ends of the stiffening lines 45 are connected to the suspension element 15 of the corner safety chute device 11. The outer ends of the stiffening lines 45 are connected, here via connectors 46, to the upper ends of the first 26 and second connecting strut 27. In the embodiment shown, connecting lines 47 lead away at an angle from each stiffening line 45, which are reversibly detachably connected, in particular via snap hooks, to the first 4 and second side safety chute device 8.
[0059] Reference numbers:
[0060] 1 safety umbrella device
[0061] 2 Edge area
[0062] 3 Building
[0063] 3A upper floor ceiling
[0064] 3B lower floor ceiling
[0065] 4 first side parachute device
[0066] 5 first side parachute
[0067] 6 first long side
[0068] 7 first side folding mechanism
[0069] 8 second side parachute device
[0070] 8A second side parachute
[0071] 9 second long side
[0072] 10 second side folding mechanism
[0073] 11 Corner safety screen device
[0074] 12 Corner catcher
[0075] 13 Corner area
[0076] 14 Corner folding mechanism
[0077] 15 Corner suspension element
[0078] 16 Corner hanging shoe
[0079] 17 vertical struts
[0080] 18 Corner support bracket
[0081] 19 first support element
[0082] 20 second support element
[0083] 21 first folding strut
[0084] 22 second folding strut
[0085] 23 Fork element
[0086] 24 corner joint axis
[0087] 25 Horizontal strut
[0088] 26 first connecting strut 27 second connecting strut
[0089] 28 first clutch
[0090] 29A outer horizontal strut of the first side
[0091] Safety screen device
[0092] 29B outer horizontal strut of the second side
[0093] Safety screen device
[0094] 30 second clutch
[0095] 31 first side hanging element
[0096] 32 second side suspension element
[0097] 33 first side suspension shoe
[0098] 34 second side suspension shoe
[0099] 35 inner horizontal struts
[0100] 36 first side support
[0101] 36A first vertical beam
[0102] 37 second side support
[0103] 37A second vertical support
[0104] 38 first side folding strut
[0105] 39 second side folding strut
[0106] 40 first side joint axis
[0107] 41 second side joint axis
[0108] 42 first pull line
[0109] 43 second tow line
[0110] 44 third pull line
[0111] 45 stiffening line
[0112] 46 connectors
[0113] 47 connecting line
[0114] 48 carabiners
Claims
Claims:
1. Safety screen device (1) for temporary attachment to an edge region (2) of a building (3) for catching falling objects and / or persons, comprising: a first side safety screen device (4) with a first side safety screen (5) for arrangement on a first longitudinal side (6) of the structure (3), wherein the first side catching screen device (4) has a first side folding mechanism (7) for folding and unfolding the first side catch screen (5), a second side catch screen device (8) with a second side catch screen (8A) for arrangement on a second long side (9) of the building (3), wherein the second side catch screen device (8) has a second side folding mechanism (10) for folding and unfolding the second side catch screen (8A), characterized by a corner catch screen device (11) with a corner catch screen (12) for arrangement on a corner region (13) of the building (3), wherein the corner catch screen device (11) has a corner folding mechanism (14) with which the corner catch screen (12) can be folded out from a folded state into an unfolded state.
2. Catch screen device (1) according to claim 1, characterized in that the corner folding mechanism (14) has a corner joint with a corner joint axis (24) which is arranged at an angle, in particular at an angle of substantially 45°, to a first side joint axis (40) of the first side folding mechanism (7) of the first side catch screen device (4) and to a second side joint axis (41) of the second side folding mechanism (10) of the second side catch screen device (8) runs.
3. Catch screen device (1) according to claim 2, characterized in that the corner catch screen device (11) further comprises: a corner suspension element (15) which can be fastened to the building (3), preferably via a corner suspension shoe (16), in particular via a corner ceiling shoe, and a corner support bracket (18) for support at a support point of the building (3) below the corner suspension shoe (16), wherein the corner support bracket (18) has the corner joint axis.
4. Catch umbrella device (1) according to claim 3, characterized in that the corner support bracket (18) has a first support element (19) for support on the first longitudinal side (6) and / or a second support element (20) for support on the second longitudinal side (9) of the structure (3).
5. Catch umbrella device (1) according to one of claims 1 to 4, characterized in that the corner catch umbrella device (11) has a first (21) and a second folding strut (22) which are arranged diverging from bottom to top, preferably at an angle of 20 to 120 ° to each other.
6. Parachute device (1) according to one of claims 3 to 5, characterized in that the suspension element (15) and the corner support bracket (18) are connected to one another via at least one vertical strut (17).
7. Parachute device (1) according to claim 5 or 6, characterized in that the lower ends of the first (21) and second folding strut (22) are connected to one another via a fork element (23) which is mounted on the corner support bracket (18) so as to be pivotable about the corner joint axis (24).
8. Catch umbrella device (1) according to one of claims 1 to 7, characterized in that the corner catch umbrella device (11) has a horizontal strut (25) which preferably connects the upper ends of the first (21) and second folding strut (22) to one another.
9. Catch screen device (1) according to one of claims 1 to 8, characterized in that the corner catch screen device (11) a first connecting strut (26) and a second connecting strut (27), wherein the first connecting strut (26) is detachably connected to the first side catching screen device (4), preferably via a first coupling, in particular via a first screw-on coupling, and the second connecting strut (27) is detachably connected to the second side catching screen device (7), preferably via a second coupling, in particular via a second screw-on coupling.
10. Parachute device (1) according to claim 9, characterized in that a length-variable, in particular a flexible connection, is provided between the upper ends of the first connecting strut (26) and the first folding strut (21) or between the upper ends of the second connecting strut (27) and the second folding strut (22).
11. Parachute device (1) according to one of claims 1 to 10, characterized in that the corner parachute (12) has at least one stiffening line (45), wherein an inner end of the stiffening line (45) is preferably connected to the suspension element (15), wherein an outer end of the stiffening line (45) is preferably connected to an upper end of the first (26) or second connecting strut (27).
12. A method for installing a safety umbrella device according to one of claims 1 to 11 on a building, comprising the steps: Arranging the first side catch screen device (4) on the first longitudinal side (6) of the structure (3), Arranging the second side catching screen device (8) on the second longitudinal side (9) of the structure (3), Unfolding the first side catch screen (5), Unfolding the second side catch screen (8A), characterized by arranging the corner catch screen device (11) at the corner region (13) of the first longitudinal side (6) with the second longitudinal side (9) of the structure (3), Unfolding the corner catch screen (12) .