Transportable shut-off system for closing lift shaft openings during construction and for temporary magazine areas in new buildings

Abstract

The portable barrier system comprises a fastening element (3) to which a one- or two-part barrier element (1) is hinged. The barrier element is preferably two-part, the two parts being connected to each other by horizontally extending guides and being fixable in any position.

Description

[0001] The invention relates to a transportable barrier system for closing floor and ceiling openings during the construction phase and for creating temporarily required storage areas in new buildings according to the preamble of claims 1 and 2. 4.

[0002] When constructing buildings with elevators, openings for the elevator shaft and staircases must be created in the walls on each floor. These openings always pose a hazard, as the risk of falling into the elevator shaft or across multiple floors in the stairwell increases with each additional floor. Currently, such openings are typically closed off with beams attached to the walls beside the light well opening and formwork panels mounted in front of them. On the one hand, constructing such temporary structures is costly, as expensive timber must be cut to size, and on the other hand, dismantling them later is labor-intensive. Another major disadvantage is that such temporary formwork cannot be opened briefly or temporarily to access the elevator shaft.The openings or penetrations in the floors and ceilings also often need to be made accessible during the construction phase, for example to allow crane loads or large elements to be transported through them.

[0003] From CH 700 375 B1, a further arrangement for securing elevator shaft doors is known. In this arrangement, the door is automatically moved from an open position to a closed position by a vertical displacement of its center of gravity. This is achieved by the fact that the two door hinges, namely the upper and the lower hinge, have non-coaxial pivot axes. Furthermore, the upper and lower stiles of the elevator shaft door can be extended by means of telescopic extensions engaging with them, thereby allowing the width of the sliding door to be changed.

[0004] Such an arrangement is designed as a single-purpose door, and changing the width of the door or the door panel is complex and the manufacture of the door hinges is costly.

[0005] The arrangement known from CH 700375 can only be assembled using the attached fastening device. Furthermore, this arrangement cannot be used for creating temporary storage areas on construction sites. A portable barrier system with a ceiling support is disclosed in US 3662993A.

[0006] One object of the present invention is to create a barrier system for elevator shaft, floor and ceiling openings and for the creation of temporary storage areas in new buildings, which can be set up and dismantled on the construction site with minimal effort.

[0007] A further object of the invention is to create a barrier system that can remain in place throughout the entire construction phase and does not hinder the continuation of work such as plastering, painting, carpentry, etc. A further object of the invention is to create a barrier system that is height-adjustable during use in order to compensate for uneven surfaces such as screed without dismantling.

[0008] Another objective of the invention is to create a barrier system that can be attached to commercially available ceiling supports.

[0009] This problem is solved by a shut-off system according to the features of claim 1.

[0010] Advantageous configurations of the barrier system are described in the dependent claims.

[0011] The inventive barrier system has the advantage that it can be assembled and disassembled during construction without damaging walls and ceilings, and that it can be set up in such a way that all subsequent work after the completion of the structural elements (shell construction) can remain in place. A particular advantage is that the barrier system can be used not only to close elevator shaft openings, but also all types of openings in floors and ceilings. It can be assembled by one person, since the fastening element, e.g. A support structure is provided, and the individual barrier elements can be transported to the construction site and assembled separately. In a special design, the barrier elements can be connected directly to each other without the use of fasteners. This makes it particularly suitable for fencing off ground openings.

[0012] The barrier system allows the barrier element(s) to be attached and removed without tools, using standard ceiling supports as fixings, at any point without damaging the structure. The barrier element and its position can also be adjusted vertically to accommodate changes in floor height during the construction phase.

[0013] This is achieved by simply sliding the hinge parts on the mounting element.

[0014] Support plates with claws, which are arranged at the ends of the fastening element, ensure a secure hold on the floor and ceiling.

[0015] The barrier element(s) comprise a frame made of vertically and horizontally arranged profiles that are welded or otherwise connected to one another. Bars, grids, or plates are inserted between the profiles. These increase the strength of the barrier element and thus the security of the barrier. Two-part hinge assemblies serve as connecting elements between the fastening element and the barrier element, allowing for easy installation and removal. If desired, helical or 45° angled contact surfaces on these hinges ensure automatic closure of the barrier element.

[0016] Advantageously, a second locking element is arranged on the first, which can be laterally displaced and locked relative to the first. This allows elevator shaft openings of varying widths to be securely closed with stable grilles or bars across their entire width using one and the same device. The two locking elements are connected to each other by simple T-nuts attached to pins. The guides for the T-nuts can consist of C-shaped profiles in which the T-nuts are guided. Rollers or bearings can also be used instead of T-nuts. The two sliding locking elements can be locked and fixed at any desired width.

[0017] To prevent jamming during movement, at least two bolt-slot nut connections are arranged in the area of ​​the respective overlapping edges.

[0018] In a further embodiment of the guide arrangement between the two locking elements, two horizontally extending tubular frame sections are arranged in pairs at the top and bottom edges of the first locking element. Two individual profiles are arranged on the second locking element such that, when the two locking elements are positioned one above the other, they extend into the space between the profiles on the first locking element. Bolts from the second locking element pass through the paired profiles on the first locking element and terminate in end plates that rest against the outside of the paired profiles. This embodiment is extremely simple and, particularly with regard to its use in construction, completely resistant to dirt, because the bolts push the frame sections to the side during movement, thus preventing jamming.

[0019] In another application, the barrier elements are attached to fixing elements, designed as ceiling supports, which define a space. This allows access to the defined space between the fixing elements clamped between the floor and ceiling. The assembly and disassembly of such a storage area within a building requires no tools, and all elements can be reused as often as needed. This eliminates the need for the laborious construction of a storage area using wooden beams and panels.

[0020] The hinge components, featuring angled bearing surfaces, ensure that the barriers always return to the closed position without external force, unless held by hand or otherwise prevented from swinging back. This prevents openings from being left unattended and people from falling. The barriers can also be easily locked to the mounting points, for example with padlocks, thus preventing access to openings even on unattended construction sites.

[0021] The barrier system is explained in more detail using an illustrated example. The illustration shows: Figure 1 shows a view of a barrier system with two barrier elements and a fastening element that supports the barrier element; Figure 2 shows a vertical section through the barrier system according to Figure 1Figure 3 shows an enlarged section of the connection between the fastening element and the shut-off element; Figure 4 shows a horizontal section through the shut-off elements; Figure 5 shows a view of the upper left corner of the interconnected shut-off elements; Figure 6 shows a cross-section along line AA. Figure 5 Figure 7 shows a perspective view of the barrier elements with a different guide arrangement, Figure 8 shows a vertical section along line AA. Figure 7 Figure 9 shows a horizontal section along line BB. Figure 7 Figure 10 shows a perspective section of the upper guide arrangement of the two locking elements and Figure 11 shows a cross-section through the upper profiles in a further embodiment.

[0022] In Figure 1Reference numeral 1 denotes two barrier elements, and reference numeral 3 denotes two fastening elements. Each barrier element 1 comprises a rectangular frame made up of two first, vertically arranged profiles 5 and two second, horizontally arranged profiles 7. The first and second profiles 5, 7 are connected to each other at their ends. Additional corner reinforcements, such as a base plate 11 or corner angle plates, can increase the stability of the barrier element 1. The two vertical profiles 5 of the barrier elements 1 can be further connected and reinforced by additional, i.e., third, profiles 13. Infill panels 15 are installed between the profiles 5, 7, and 13 to prevent the passage of persons and the falling of tools. The infill panels 15 can be vertically or horizontally oriented bars 17, or a grid or mesh 19.Fasteners 21 can be arranged on the first profile 5 located on the left side or on both sides.

[0023] These include hinge elements 23, which can be reattached to the fastening element 3 in a detachable and slidable manner. In a simple embodiment, the hinge elements 23 are directly connected to the fastening element 3. In a preferred embodiment, the hinge elements 23 are vertically slidable and lockable to the fastening element 3.

[0024] In a first embodiment, the hinge elements 23 are arranged on clamps 25, which clamps 25 encircle the tubular lower part 27 of the fastening element 3, e.g., a ceiling support. By loosening or tightening clamping elements such as screws 29, the clamps 25 and the hinge elements 23 attached to them can be moved vertically.

[0025] In a further preferred embodiment, the two clamps 25 can be connected to each other by a rod 31 running parallel to the lower tube 27 to allow synchronous movement (rod shown in dashed lines). In this embodiment, one of the two clamping screws 29 can be omitted.

[0026] In a particularly advantageous embodiment, the two hinge elements 23 can be attached to a sleeve tube, which is axially displaceable on the lower tube 27 of the fastening element 3. The sleeve tube (not shown) can either be held at the desired height by stop elements, such as bolts that penetrate the lower tube, or nuts can be arranged on a threaded section on the lower tube, allowing stepless adjustment of the sleeve tube and thus of the hinges located therein. This design has the advantage that the height of the locking elements 1 can be adjusted at any time by one person without disassembling the fastening elements 3.

[0027] The fastening element 3 comprises, in addition to the lower tube 27, a second upper tube 33, which can telescopically engage with the lower tube 27. The upper tube 33 can be adjusted by an adjustment device 35 (not further specified), thereby setting the height of the fastening element. Simultaneously, the adjustment device 35 can be used to clamp the fastening element 3 between the floor and the ceiling of a room. Support plates 37, on which pointed prongs 39 are formed, can be attached to the ends of the lower tube 27 and the upper tube 33.

[0028] Bases 39 can be arranged on the support plates 37, which, for example, remain on the ground as lost elements in the slabs after the pouring of the slabs. This eliminates the need to adjust the height of the barrier elements 3 when a slab or paving is laid on the ground.

[0029] Handles 51 are preferably arranged on the fastening elements 3, on which the extended locking element 1 comes into contact when the lift opening is closed and, if necessary, can be fastened or locked there with a padlock on the second fastening element.

[0030] The bearing surfaces 53, arranged at an angle of approximately 45° or in a helical shape, between the upper and lower hinge parts ensure that the locking element 1 always rotates from the open position to the closed position, thus reliably covering the opening cross-section of elevator shaft openings.

[0031] To adapt the barrier system to openings of varying widths in elevator shafts, two essentially identical barrier elements 1 are connected to each other transversely by guide profiles 39 and T-nuts 41 or rollers guided therein. The guide profiles 39 can be attached to the second, horizontally oriented profiles 7 or additionally to the profile 13 of the barrier element 1, or they themselves form the second profiles 7, which connect the two vertical first profiles 5.

[0032] In Figure 4 The position of the shut-off elements 1 in the closed position is as follows: Figure 1 The diagram shows a cross-sectional view. It is evident that the locking elements 1 partially overlap in the central area and at their ends, where they are guided parallel by a guide arrangement 55. On the right side, it can be seen that the extended locking element 1 rests against the handle 51 and the fastening element 3.

[0033] For constructing fences around ground openings smaller than the maximum width of the barrier system, additional hinges can be arranged on the vertical profiles of the barrier elements. On one side of each barrier element, two upward-facing hinge pins are attached, and on the profile on the opposite side, sleeves are attached at the corresponding height. The inner diameter of these sleeves corresponds to the diameter of the pins on the opposite side. This allows the barrier elements to be positioned side by side at any angle without the need for fasteners such as corner supports or similar components (not shown). In this way, barriers of any shape can be constructed to prevent people from climbing over them.

[0034] In the Figures 5 and 6A first embodiment of the guide arrangement is shown. The horizontal second profile 7 has a C-shaped cross-section, the laterally extending slot 7' of which is directed towards the second locking element. In the second locking element on the right side, the second profile 7 consists of a rectangular profile. The latter is penetrated by a bolt 43, at the right end of which a T-nut 41 is attached. A nut 57, preferably a self-locking nut, is located on the left end.

[0035] To ensure a uniform load distribution on the guide assembly, for example, three T-nuts 41 with bolts 43 are arranged on the second profile 7 at the upper edge of the locking element, and the same number are arranged on the lower second profile 7. The T-nut 41 can be installed as shown in Figure 6The T-nut 41 can be designed as a flat disc or a flat rectangular plate. Alternatively, a T-shaped T-nut 41 can be provided, which engages wedge-like in the slot 7' on the profile 7 and partially fills the remainder of the cross-section of the second profile 7 essentially completely. In this embodiment, as shown in Figure 11 As shown, the T-nut 41 slides along the edges of the slot 7', and not the bolt 43 as in Figure 6 depicted.

[0036] As an alternative to T-nuts 41, a ball bearing or a rotatably mounted disc can also be fitted at the end of the bolt 43, which is guided in the C-shaped guide profile 39.

[0037] Preferably, two bolts 43 with T-nuts 41 are arranged on the overlapping areas of the guide profiles 39 (when the locking elements 1 are extended) to prevent tilting during extension or retraction of the locking elements 1. Additionally, locking screws 45 can be provided at the top and / or bottom or on a central profile 13 to lock the two interacting locking elements 1. Alternatively, the bolt 43 carrying the T-nut 41 can be axially displaceable, thus locking the two locking elements 1 together.

[0038] The Figures 7 to 10 show a further embodiment of a guide arrangement 55. In this embodiment, the upper second profile 7 of one of the two locking elements 1 is formed from two profiles spaced apart from each other. On the front profile 7 (in Figure 10It is evident that this is penetrated by three screws 59 and that the screw bolt 61 extends between the two profiles 7. The three screws 59, for example, can engage the corresponding threaded bores in the sliding bearing element 63 or be held there by means of screws. The sliding bearing element 63 therefore bears the load of the movable shut-off element and transfers it to the lower of the two parallel profiles 7 arranged at a distance.

[0039] In a particularly preferred embodiment, the sliding bearing element 63 consists of a good sliding plastic material.

[0040] The locking element 1 can therefore be arranged as a pivoting door in front of an elevator shaft opening. For this purpose, the fastening element 3 is first aligned and clamped precisely vertically to the side or within the opening between the floor and ceiling of the structure. A second fastening element 3 is clamped between the floor and ceiling on the right side of the locking element 3 in the same manner, and the door can now be hung. The locking part 47, which projects from the fastening element 3, serves, on the one hand, to hold the locking element 1 in the closed position by a corresponding stop part 49 arranged on the right side of the locking element 1. Simultaneously, a lock can be attached to the locking part 47 and the stop part 49, creating a lockable connection between the two parts. In a preferred embodiment, the locking part 47 is arranged to be vertically displaceable on the fastening element 3. e.g.on the rod 31 - if present - or on a clamp, in order to be able to lock the locking element 1 in any vertical position.

[0041] The sliding mechanism of the hinge part 3 23 on the fastening element 3 serves to lift the locking element 1, for example, when a covering such as a coating or a tile covering is applied to the raw surface of the building floor.

[0042] To enable the hinge elements 3 to be moved stepwise on the fastening element 3, a toothed rail 65, similar to those used in rack railways, can be attached to the fastening element 3. This rail 65 allows the clamp 25 or the shank of the screw 29 on the clamp 25 to be inserted between two teeth of the toothed rod, thus fixing the height not by friction, but by positive locking of the connection of the hinges to the fastening element 3.

[0043] In another application, the barrier element 1 can be used as a temporary, erectable partition wall to create a storage area. For this purpose, several barrier elements 1 and the associated fastening elements 3 are arranged between the floor and ceiling of the building, for example, a basement, and the spaces between are closed off by the barrier elements. In this way, the restricted area is accessible from all sides by opening or closing the corresponding barrier element 1.

Claims

1. A transportable shut-off system for closing openings during the construction phase and for creating temporarily required magazine areas in new buildings, comprising a shut-off element (1) and a fastening element (3) for fastening the shut-off element (1) to a building, wherein the shut-off element (1) is configured so that it can be connected to the fastening element (3) which is configured as a commercially available ceiling support, characterized in that two hinge arrangements (21) fastened to the shut-off element (1), embodied as fastening means, are configured for connecting the shut-off element (1) to the fastening element (3), via which hinge arrangements (21) the shut-off element (1) can be connected to the fastening element (3), so that the shut-off element (1) can be arranged as a pivotable door in front of an elevator shaft opening, the hinge arrangements (21) for setting and adjusting the height on the fastening element (3) can be connected in such a way that they can be vertically displaced and locked, and the shut-off system is adapted to close elevator shaft openings in buildings.

2. The shut-off system according to Claim 1, characterized in that, at the ends of the fastening element (3), support plates (37) with claws (39) projecting away from the plate surface and / or lost spacer plates which can be molded into a base are arranged.

3. The shut-off system according to Claim 1, characterized in that the two hinge arrangements (21) are configured as two-part hinges and the contact surfaces of the interlocking parts of the hinges (21) extend inclined at an angle to a perpendicular plane to the pivot axis of the hinges.

4. The shut-off system according to Claim 3, characterized in that the second hinge parts (23) which can be separated from the first hinge part (23) can be fastened to the fastening element (3) in such a way that they can be vertically displaced and locked.

5. The shut-off system according to Claim 4, characterized in that the two hinge arrangements (21) comprise connecting means which are configured as clamps which can wind around the fastening element (3), or that the two hinge arrangements can be displaceably arranged along a fastened rail on the casing of the ceiling support (3).

6. The shut-off system according to Claim 3, characterized in that, in addition to the two-part hinge arrangements (21), two further hinge elements are fastened to the side of the shut-off element (1), which provide a connectivity to a further adjacent shut-off element (1).

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