ROLLER DOOR

Abstract

The invention relates to a roller door comprising a door leaf which is movable between an open position, in which it uncovers a wall opening at least partially and preferably forms a multi-layer coil at least partially above the wall opening, and a closed position, in which it closes the wall opening at least partially, said door leaf having a plurality of door leaf segments arranged one behind the other in the direction of movement of the door leaf. At least one stabilizing device extending perpendicular to the direction of movement of the door leaf is arranged between two door leaf segments, and the mutually facing edge regions of the door leaf segments are held on the stabilizing device, at least one edge region of at least one segment being held in a floating manner on the stabilizing device in such a way that a relative movement of this edge region with respect to the stabilizing device is possible at least in the direction of movement of the door leaf.

Claims

1. A roller door comprising a door leaf which is movable between an open position, in which it uncovers a wall opening at least partially and preferably forms a multi-layer coil at least partially above the wall opening, and a closed position, in which it closes the wall opening at least partially, said door leaf having a plurality of door leaf segments arranged one behind the other in a direction of movement of the door leaf, wherein at least one stabilizing device extending perpendicular to the direction of movement of the door leaf is arranged between two door leaf segments, and mutually facing edge regions of the door leaf segments are held on the stabilizing device, wherein at least one edge region of at least one segment is held in a floating manner on the stabilizing device such that the edge region is relatively movable with respect to the stabilizing device at least in the direction of movement of the door leaf.

2. The roller door according to claim 1, characterized by a constraining arrangement, which limits the relative movement of the floatingly held edge region with respect to the stabilizing device.

3. The roller door according to claim 2, wherein the constraining arrangement is composed of a widening of the floatingly held edge region in a thickness direction perpendicular to the plane of the door leaf, which is defined by the direction of movement of the door leaf and the stabilizing device, and a receptacle formed in the stabilizing device for the widening of the edge region, which is held thereon in a floating manner, wherein the receptacle has a mouth, which is passed through by a transition region of the segment between the widening and a region of the segment, which lies exposed outside the stabilizing device, wherein a width of the mouth, in the thickness direction, is greater than a thickness of the transition region in the thickness direction, and less than dimensions of the widening in the thickness direction.

4. The roller door according to claim 3, wherein the receptacle is delimited on its side opposite the mouth by a bottom, wherein the distance between the mouth and the bottom in the direction of movement of the door leaf is greater than a length of the widening of the floatingly held edge region in the direction of movement of the door leaf.

5. The roller door according to claim 3, wherein at least one widening is formed by bending the floatingly held edge region with respect to a bending axis running parallel to the stabilizing device.

6. The roller door according claim 3, wherein at least one widening is formed by a thickening of the edge region, in particular by gluing and/or welding of a beading.

7. The roller door according claim 3, wherein at least one widening is formed by a widening element, such as a widening clip, held in a positive, non-positive and/or material fit on an edge region of at least one door leaf segment.

8. The roller door according to claim 1, wherein the stabilizing device has at least two detachably interconnected receiving parts which form opposing boundary surfaces of the mouth.

9. The roller door according to claim 1, wherein at least one segment having a floatingly held edge region has at least one plate which is formed at least in sections from a flexible and/or transparent material such as polycarbonate.

10. The roller door according to claim 1, characterized by joint assemblies for guiding the door leaf movement, which are positioned in the region of lateral edges of the door leaf, which extend at least in sections, in the closed position, in the direction of gravity, wherein each of the joint assemblies has a plurality of joint members, which are hingedly connected to one another with respect to joint axes, which are perpendicular to the direction of movement or the lateral edges of the door leaf, wherein the door leaf is connected with the joint assemblies by means of the stabilizing devices.

11. The roller door according claim 3, characterized by a sealing material which is preferably received between the widening and the mouth in the receptacle.

12. The roller door according claim 8, wherein the stabilizing device has two receptacles, which are spaced from one another in the direction of movement of the door leaf, wherein the upper receptacle, in the closed position, is delimited by two receiving parts detachably connected to one another.

13. The roller door according claim 9, wherein at least one door leaf segment, which is provided with the floatingly held edge region, has at least two plates, which are spaced from one another in the door leaf thickness direction and are approximately parallel to one another, each of which has at least one edge region, which is held on the stabilizing device and faces a neighboring segment, wherein at least one edge region of at least one plate is held in a floating manner on the stabilizing device such that the edge region is relatively movable with respect to the stabilizing device at least in the direction of movement of the door leaf.

14. The roller door according to claim 13, wherein at least one stabilizing device has two receptacles spaced from one another in the direction of the thickness of the door leaf, each for receiving an edge region of a plate of a door leaf segment.

15. The roller door according to claim 13, wherein at least one edge region of the inner (outer) plate facing (facing away from) the coil axis in the coil is held with greater play with respect to the stabilizing device than the corresponding edge region of the outer (inner) plate of the door leaf segment facing away from (facing) the coil axis in the coil.

16. The roller door according to claim 1, characterized by a filler material, preferably made of flexible material, arranged on at least one of the edges of at least one door leaf segment running parallel to the direction of movement of the door leaf, preferably between mutually facing boundary surfaces of the plates.

17. The roller door according to claim 16, wherein the filler material extends over 50% or less of the door leaf width in a direction parallel to the stabilizing device.

18. The roller door according to claim 1, wherein at least one stabilizing device has two stabilizing elements which are spaced apart in the direction of the thickness of the door leaf and which are connected to one another via a connecting element made of thermally insulating material.

19. The roller door according to claim 1, wherein at least one segment made of flexible material is arranged between two stabilizing devices, wherein a lateral edge of the segment, which is perpendicular to the stabilizing devices and which is approximately parallel to the joint assemblies extends over two, three or more joint members and at least one edge region of the segment is held in a floating manner on a stabilizing device.

20. The roller door according claim 10, wherein at least one stabilizing device extends approximately parallel to a joint axis and is connected along this joint axis to at least one, preferably to two joint assemblies provided on opposite lateral door leaf edges.

21. The roller door according claim 10, wherein a stabilizing device extending parallel to a joint axis is only connected to the joint assemblies.

22. The roller door according to claim 21, wherein the stabilizing device connected only to the joint assemblies has, on its side facing away from the segment, a sealing arrangement which can be placed against a lintel of the wall opening.

23. The roller door according to claim 21, wherein the stabilizing device connected only to the joint assemblies has on its side facing the segment at least one sealing strip, which extends approximately parallel to the joint axes, preferably over substantially the entire width of the door and which can be placed on the segment.

24. The roller door according to claim 1, characterized by at least one reinforcement strip which extends parallel to the lateral edge of the door leaf and is fastened to the door leaf.

25. The roller door according to claim 1, characterized by at least one possibly oval-spiral guide track for guiding the movement of the door leaf and for defining the open position of the door leaf.

26. The roller door according to claim 25, wherein at least one joint member has on its side facing away from the door leaf a guide arrangement which interacts with the guide track for guiding the door leaf movement and which preferably comprises at least one guide roller which is rotatably held with respect to a roller axis running parallel to the joint axes, which is received in a guide track preferably at least in the open position of the door leaf.

27. The roller door according to claim 1, wherein the leading edge of the door leaf, during an opening movement, is formed by a leading stabilizing device, which is rotatably connected to an upper edge of a segment made of a flexible material in the closed position and which is rotatably connected to a guide arrangement.

28. The roller door according to claim 1, wherein a sealing arrangement is associated with at least one joint member of a joint assembly, wherein, in the closed position, the sealing arrangement can be placed on a boundary surface, in particular the inner boundary surface, of the door leaf.

29. The roller door according to claim 1, characterized by a biasing device which, during an opening movement, can be coupled to a trailing edge of the door leaf and which can be pretensioned in the course of the opening movement, for braking the opening movement and for providing a biasing force, which urges the door leaf from the open position into the closed position.

30. The door according to claim 1, with a guide device for guiding the movement of the door leaf between the open position and the closed position.

31. The door according to claim 29, wherein at least one guide device has a door leaf-side magnetic field generating device and a magnetic field generating device fixed with respect to the wall opening, the magnetic field generating devices being designed to obtain a contactless guidance of the door leaf movement along at least one section of the predetermined path in the region of at least one of the opposing lateral edges.

32. A method for manufacturing a segment plate for a roller door according to claim 1, wherein a plastic web, at least partially made of polycarbonate, is continuously drawn in a conveying direction from an unwinding reel, or a roll or coil, wherein at least one edge of the plastic web running parallel to the conveying direction is bent over, and then a plate is separated from the plastic web along a cutting line, which is approximately perpendicular to the conveying direction.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The invention is explained in the following with reference to the drawing, to which explicit reference is made with regard to any details essential to the invention which not detailed in the description. In the drawing, in particular:

[0041] FIG. 1 shows a schematic representation of a lateral edge region of a roller door according to the invention,

[0042] FIG. 2 shows a detailed representation of the transition, denoted by A in FIG. 1, between door leaf segments and a stabilizing device,

[0043] FIG. 3 shows a detailed illustration corresponding to FIG. 2 according to a further embodiment of the invention,

[0044] FIG. 4 is a schematic representation of a lateral edge region of an inventive roller door according to a second embodiment of the invention,

[0045] FIG. 5 shows a schematic representation of a roller door according to the invention according to a third embodiment of the invention,

[0046] FIG. 6 shows a schematic representation of a roller door according to the invention according to a fourth embodiment of the invention,

[0047] FIG. 7 shows a schematic representation of a roller door according to the invention according to a fifth embodiment of the invention and

[0048] FIG. 8 shows a schematic representation of a production plant for the plates of a roller door according to the invention.

DETAILED DESCRIPTION

[0049] FIG. 1 shows two door leaf segments 110 and 120 of a door leaf 100 of a door according to the invention arranged one behind the other in the direction of movement of the door leaf indicated by the double arrow P. A stabilizing device designed as a stabilizing profile 200 is arranged between the door leaf segments 110 and 120. The stabilizing profile 200 extends in a direction perpendicular to the direction of movement of the door leaf P approximately in the door leaf plane. A bottom edge of the top door leaf segment 120 is floatingly held in the region of an upper receptacle 230 (see FIG. 2) of the stabilizing profile 200, while an upper edge of the lower door leaf segment 110 is floatingly held in a lower receptacle 240 (see FIG. 2) the stabilizing profile 200 is kept floating. An upper edge of the door leaf segment 120 is held on a further stabilizing profile 200, in the same way as a lower edge of the door leaf segment 110 is also held on a lower stabilizing profile 200.

[0050] The stabilizing profiles 200 are attached to a joint assembly 300 which extends approximately parallel to the direction of movement of the door leaf or which extends parallel to a lateral edge of the door leaf 100. The joint assembly 300 comprises a plurality of joint members 310, which are arranged one behind the other in the direction of movement of the door leaf and which are hingedly interconnected with respect to joint axes, which are perpendicular to the direction of movement P of the door leaf. In particular, three joint members 310 are arranged between two adjacent stabilizing profiles 200. In other embodiments of the invention, only one or two or four or more joint members can be provided between the stabilizing profiles 200. A stabilizing profile can also be provided in the region of each connection between successive joint members.

[0051] On its side facing away from the door leaf segments 110 and 120, the joint assembly has guide rollers 320 which are rotatably held with respect to roller axes extending parallel to the joint axes. The guide rollers 320 are respectively arranged in pairs in the region of a joint axis in such a way that they can accommodate a guide rib between them and can roll over opposing boundary surfaces of the guide rib, in order to guide the door leaf movement, as described in PCT/EP2019/058221.

[0052] As can be seen particularly clearly in FIG. 2, an upper edge region 112 of the door leaf segment 110 extending parallel to the joint axes and parallel to the stabilizing profile 200 is arranged in a receptacle 240 of the stabilizing profile 200. The upper edge 112 of the door leaf segment 110 is formed, by bending over of the upper edge of the door leaf segment 112, as a widening in a plane extending perpendicularly to the door leaf plane determined by the direction of movement of the door leaf P and the stabilizing profile 200. Starting from the widening 112, the door leaf segment 110 extends downward with a transition region through an opening 250 of the stabilizing profile 200 and is exposed outside the opening 250, as can be seen in FIG. 1. Likewise, the door leaf segment 120 has a widening 122, which is received in a receptacle 230 of the stabilizing profile 200. Starting from the widening 122, the door leaf segment 120 extends upwards with a transition region through an opening 225 and is exposed outside the opening 225.

[0053] The mouth 250 is delimited by boundary surfaces 232 and 242, which are separated from one another by a distance in a direction parallel to the door leaf thickness, which is less than the thickness of the widening 112, but greater than the thickness of the transition region of the door leaf segment 110 between the widening 112 and the region exposed outside the stabilization profile 200. The mouth 225 is also delimited by boundary surfaces 212 and 222, the distance between which in the door leaf thickness direction is less than the thickness of the widening 122, but greater than the thickness of a transition region between the widening 122 and the region of the door leaf segment 120 exposed outside the stabilizing profile 200.

[0054] As can also be seen in FIG. 2, the stabilizing profile 200 is composed of two parts 210 and 220 that are detachably connected to one another. The recess 240 on the lower edge of the stabilizing profile 200 is entirely formed by the first stabilizing profile part 210, while the receptacle 230 on the upper edge of the stabilizing profile 200 is formed by the two stabilizing profile parts 210 and 220. A first boundary surface 212 of the mouth 225 is formed by the first stabilizing profile part 210, while a second boundary surface 222 of the receptacle 230 is formed by the second stabilizing profile part 220.

[0055] In order to assemble a roller door of the type shown in the drawing, an upper edge of a door leaf segment can be pushed into the receptacle 240 in a direction parallel to the stabilizing profile 200, wherein a transition region between the widening 240 and a region of the door leaf segment that lies exposed outside the stabilizing profile 200 passes through the mouth 250. The module prepared in this way can be threaded into a guide device, which can consist of a guide rib arranged between the guide rollers 320. Subsequently, a lower edge 122 of the door leaf segment can be placed on a boundary surface 212 of the first stabilizing profile part 210 and the second stabilizing profile 220 can be clipped onto the first stabilizing profile 210, in order to form the opening 225, which is passed through by the transition region between a widening of the door leaf segment, which is received in the receptacle 230 and a region of the door leaf segment that lies exposed outside the stabilizing profile 200.

[0056] The distance between the mutually opposite boundary surfaces 212 and 222 or 232 and 242 of the mouths 225 and 250 is greater than the thickness of the transition regions passing through these mouths. This prevents a clamping effect in the region of the transition regions.

[0057] Furthermore, the distance between the mouths 225 and 250 and the bottoms of the receptacles 230 and 240, which are opposite to the corresponding mouths 225 and 250 is greater than the length of the widenings 122 and 112 in the direction of movement of the door leaf. This enables a relative movement of the door leaf segments 110 and 120 with respect to the stabilizing profile 200.

[0058] In the region of the bottom of the receptacle 230, a sealing material can be arranged, which, if necessary, swells when moisture penetrates.

[0059] The embodiment of the invention shown in FIG. 3 differs essentially from the embodiment explained with reference to FIG. 2 in that between the bent over lower edge of plate 120 forming the widening 122 and the lower boundary surface of part 220 of stabilizing profile 200 a damping element 230 is arranged, which on the one hand provides a sealing of the floating plate 120 held in the stabilizing profile 200, and on the other hand causes a biasing of the floating plate 120 held in the stabilizing profile 200, which helps to compensate for tolerances and holds the plate 120 tightly in its position. Furthermore, the damping element 140 reduces noise, which can occur when the bent over lower edge of the plate 120 is moved in the receptacle 230 and hits against the lower boundary surface of the part 220 of the stabilizing profile.

[0060] The embodiment of the invention shown in FIG. 4 differs essentially from the embodiment of the invention shown with reference to FIGS. 1 and 2, in that the door leaf segments are provided with two generally mutually parallel plates 120a and 120b, or 110a and 110b, which are designed as flexible polycarbonate plates. The lower edges of the plates 120a and 120b are each provided with a widening formed by bending over these edges, which are floatingly held in receptacles 230a and 230b of the stabilizing profile 1200. The upper edges of the plates 110a and 110b of the lower segment are held in receptacles 240a and 240b of the stabilizing profile 1200. An air cushion 180 for thermal insulation is formed between the plates 120a and 120b or 110a and 110b. The air cushion 180 is closed at the edges running parallel to the direction of movement P of the segments 120 and 110 by elastic pads 190 provided between the plates 120a and 120b or 110a and 110b. These pads 190 can be provided by elastic rungs. For example, elastic pads made of a foam-like material can be used, which are glued in or mechanically fixed. The elastic design of the pads 190 also enables the necessary mobility when winding the door leaf in the spiral guide track when the open position is reached.

[0061] Additionally or alternatively, fan-like plastic elements, which are hingedly connected to one another, can also be clipped onto the plate in the chamber 180. The use of corresponding elastic pads or elastic fan elements in door leaf segments with only one plate, as shown in FIGS. 1 and 2, can also be envisaged to compensate for the offset between the plate and the stabilizing profile in the wall region. As a result, the sealing of the door leaf in the closed position can be improved.

[0062] The embodiment of the invention shown in FIG. 5 differs essentially from the embodiment explained with reference to FIG. 4 in that the chamber 2230b of the stabilizing profile 2200, which is provided to accommodate the widening 230b on the lower edge of the plate 110b, has a greater depth in the direction of movement of the door leaf than the chamber 230a, which is used for receiving the widening 122a formed on the lower edge of the plate 110a. This ensures that the plate 110b, which is located radially on the inside in the open position, is held with greater play in the receptacle 230b than the plate 110a, which is located radially on the outside in the open position. As a result, when the door leaf reaches the open position, the different deformation of the plates 110a and 110b can be compensated for, as illustrated in FIG. 5b).

[0063] The embodiment of the invention shown in FIG. 6 differs essentially from the embodiment of the invention explained with reference to FIG. 5 in that the stabilizing profiles 3200 are generally composed of three parts, wherein the parts 3210, 3220, 3230 are provided in sequential order in the door leaf thickness direction.

[0064] The part 3210 that is on the inside in the closed position of the door leaf, like the part 3220 of the stabilizing profile 3200 that is on the outside in the closed position, is made of a metallic material. This gives the stabilizing profile the necessary stability. The parts 3210 and 3220 are connected to one another via connecting elements 3230 made of thermally insulating material such as plastic. Thus, while ensuring adequate overall stability of the stabilizing profiles 3200, heat loss between the inner space and the external space can be effectively reduced via the stabilizing profiles 3200.

[0065] The embodiment of the invention shown in FIG. 7 differs essentially from the embodiment of the invention shown with reference to FIGS. 1 and 2 in that, between the stabilizing profiles 200, which are fixed at the lower and upper edges of plates 110, 120 a stabilizing profile 400 is provided, which is attached exclusively to the joint members of the joint assembly 300. This additional stabilizing profile 400 can be positioned independently of the plate geometry and can be attached to position a lintel seal depending on the height of the wall opening. For this purpose, the stabilizing profile 400 is equipped with a sealing element 410 on its side facing away from the plates 110, 120, while on the side facing the plate 120 it is provided with hose seals 420 that rest against the plate 120. Since the additional stabilizing profile 400 is not attached to the plates 120, it can be attached to any joint links 310 regardless of the plate geometry. The position of the seal 410 can thus be adapted to the height of the wall opening. This not only improves the sealing effect, but also increases the overall stability of the roller door.

[0066] In FIG. 8 a system for the production of plates for the door leaf segments of rolling doors according to the invention is shown schematically. When using the system shown in FIG. 8, a plastic web made at least partially of polycarbonate is continuously unwound in a conveying direction F from an unwinding reel 510. The plastic web runs through a trimming unit 520, in which the exact width of the plastic web is set, and then through a double-head profiling system 530, in which the edges of the plastic web running parallel to the conveying direction F are bent over to create the widening of the plates. As can be seen in FIG. 8, the profiling system has a plurality of shaping rollers with which the edges of the material web are gradually bent over. After leaving the double-head profiling system 530, plates of a predetermined length are cut from the material web by means of a cutting unit 540 along a cutting line running perpendicular to the conveying direction F and are then placed on an outfeed table 550. The following features of methods according to the invention are of particular importance in the context of this invention. They can be essential to the invention individually or in combination with one another: [0067] The plastic web is produced by extrusion and wound into a coil or

[0068] roll. The width of the plastic web or the coil depends on the extruder size. [0069] The width of the extruded plastic web, such as an extruded polycarbonate web, is subject to fluctuations. With a trimming station, the material web can be trimmed to the desired width, preferably before entering the forming station. [0070] In the trimming station, a wider plastic web can be split to a narrower size. This allows the required plate size to be determined depending on the size of the door. [0071] A plastic web, in particular a polycarbonate web, after passing through a shaping device, possibly designed as a double-head profiling system, can have significantly higher restoring forces than steel. Therefore, when carrying out the method according to the invention, a significant overbending is preferably achieved in order to ultimately obtain the desired contour. This also takes into account the fact that the deformation can relax over time and the deformed state can transition away from the shape obtained after leaving the deformation station, under the effect of the restoring forces. [0072] In order to reduce the restoring forces, it has proven to be useful to support the forming process with heat. When using polycarbonate webs, the webs are advantageously heated to a temperature between 150 and 170 degrees Celsius, at least in the forming region. This has the following effects:

[0073] 1. There is a gentler deformation with less stress on the polycarbonate and thus cracks are prevented in the deformation region.

[0074] 2. The forming stresses are neutralized and the restoring forces are minimized. [0075] Plastics material, in particular polycarbonate, has a lower inherent stability than steel. Therefore, it has proven to be particularly advantageous within the scope of the invention if the plastic web is supported between the edges running parallel to the conveying direction, in the region of which the individual deformation stages can also be arranged. The support of the plastic web between the edges can be obtained with at least one conveyor belt. With the conveyor belt, the plastic web is supported between the edges running parallel to the conveying direction and is conveyed in the conveying direction. It has proven to be particularly useful if the plastic web is held from above and below by means of suitable conveyors in order to ensure the stability required for a continuous shaping process. [0076] Instead of conveyor belts, other conveying devices or supporting devices suitable for supporting the plastic web can also be used.

[0077] The invention is not limited to the exemplary embodiment explained with reference to the drawing. For example, the widenings in the region of the edges of the door leaf segments can also be formed by glued or welded beadings. The stabilizing profiles 200 can generally be integrally formed, so that the widened edges of the door leaf segments have to be pushed laterally into the stabilizing profiles. Instead of a guide arrangement in which two guide rollers contact opposing boundary surfaces of a guide rib, guide arrangements can also be used, in which guide rollers are accommodated inside a guide rail. Instead of a guiding systems composed of guide rollers, a contactless magnetic guide can also be used.