GATE WITH A FUNCTIONAL FILM

Description

[0001] The invention relates to a door, in particular a roller door, according to the preamble of patent claim 1.

[0002] Such doors are realized, for example, as so-called roller doors, in which the door leaf forms a possibly multi-layered coil in the open position above the wall opening. The door leaf can have a number of door leaf segments arranged one behind the other in the direction of door leaf movement. At least one stabilizing device extending perpendicular to the door leaf movement, approximately horizontally or approximately perpendicular to the movement path, is arranged between two door leaf segments. The mutually facing edge regions of the door leaf segments, which extend approximately perpendicular to the movement path, are held on the stabilizing device.

[0003] When entering the open position and in the open position itself, the door leaf segments are deflected. This section of the track is also referred to below as the deflection section. In known roller doors with the design just described according to WO 2018 / 219512 A1, the door leaf segments are made of a flexible base material, such as polycarbonate, which allows the door leaf segments to bend following the deflection section. These door leaf segments, also referred to below as discs, thus form bending areas of the door leaf, at least in the area between the stabilizing devices.

[0004] The familiar roller shutters can also be used as so-called high-speed doors for closing industrial buildings. The stabilization of the door leaf movement by the stabilizing devices arranged between the individual door leaf segments, together with the flexible design of the door leaf segments themselves, enables door leaf speeds of 2 m / sec or more during opening and closing.

[0005] During operation of conventional high-speed doors, damage is often observed, particularly in the outer boundary surface of the bending areas facing away from the space to be closed. This damage can be attributed, on the one hand, to contact between successive layers of the coil in the deflection area, which is often unavoidable during high-speed operation. On the other hand, this damage is also caused by external influences, such as environmental influences. Damage caused by environmental influences can also occur in industrial sectional doors with window elements made of flexible plastics, such as SAN or polycarbonate. In industrial sectional doors, these window elements are usually enclosed in aluminum frames that completely surround the window elements.To prevent damage and improve scratch resistance, these well-known products use a hard coating with which the window elements are vapor-coated or coated.

[0006] However, attempts to prevent damage in the bending area of ​​the doors described above by applying appropriate coatings and to increase their scratch resistance in order to maintain the desired external appearance of these doors when closed over a longer period of time have shown that, despite the coating, impairments to the external appearance of the door leaves are observed, which in some cases go beyond the impairments observed with uncoated products.

[0007] Gates according to the preamble of patent claim 1 are described in DE 3609194 A1 and DE 2707474 A1.

[0008] In view of these problems in the prior art, the object of the invention is to provide doors with door leaves having bending areas, in particular roller doors, whose external appearance is hardly affected even in high-speed operation and under demanding weather conditions.

[0009] According to the invention, this object is achieved by the further development of the known gates specified in the characterizing part of patent claim 1.

[0010] This invention is based on the discovery that the hard coating successfully used in industrial sectional doors on a bending area subject to bending during door leaf movement leads to the formation of microcracks, which in many cases impair the external appearance more than the damage caused by door leaf movement without appropriate equipment in the bending areas and / or by weather influences. The dynamic loads regularly occurring in the deflection area during the opening and closing movement lead to the observed defects.

[0011] Within the scope of the invention, instead of a vapor-deposited hard coating, a functional film, i.e. a structurally coherent sheet, is applied to at least part of a boundary surface of a bending area. Unlike with a vapor-deposited coating, the structural properties of the functional film can be adjusted so that they can follow the regular dynamic loads during door leaf operation. For this purpose, the films can be equipped with appropriate deformability, in particular elastic deformability and / or extensibility, which can easily cope with the bending cycles (elongation and compression) when passing through the deflection sections. During the process of laminating the functional film, a boundary layer can be formed between the base material and the functional film, which also withstands the occurring load cycles without damage.

[0012] Surprisingly, it has been shown that the laminated film also counteracts noise development. This is evident, on the one hand, in the reduction of running noises generated by the door leaf movement. On the other hand, a reduction in rattling noises can be observed when external pressure is applied to the door leaf in the closed position, particularly when a part of the door leaf that is in the bending area is mounted in a floating manner (see below). Furthermore, the laminated functional film can reduce noise emissions from a hall enclosed by the door leaf.

[0013] The functional film laminated to the base material according to the invention can impart a desired external appearance to the door leaf in addition to or as an alternative to the improved resistance to impairments of the external appearance. If the priority in selecting the functional film is to avoid impairments of the external appearance, it is preferred within the scope of the invention if a boundary surface of the functional film facing away from the base material has a higher scratch resistance according to DIN EN ISO 12137 than the base material. The functional films can be designed to be transparent overall. However, the use of colored films is also conceivable, which can impart improved mechanical properties to the bending area in addition to the desired colorful impression.

[0014] The functional films can be mixed with coloring pigments and / or equipped with corresponding translucent tints. They can be equipped with various types of filters or mirror coatings. In regions with high solar radiation, a mirrored film provides protection from sunlight while simultaneously allowing light to enter. A boundary surface of the functional film facing away from the base material can be at least partially mirrored and / or decorated with a pattern, such as a carbon-look, wood-look, or brushed aluminum pattern.

[0015] In addition to the desired improved resistance to weather influences and / or damage occurring during door leaf operation, the use of functional films proposed by the invention provides enormous scope for door design.

[0016] This is particularly important when the bending areas, such as the panes or door leaf segments of conventional roller doors held between stabilizing devices, make up up to 90 percent or more of the entire door leaf surface.

[0017] A corresponding design freedom can hardly be realized in an economically viable manner by selecting the base materials for the bending area, because these base materials, such as polycarbonate sheets, can only be obtained with color pigments or special features in very large quantities, so that a design of the optical appearance via the starting material for the bending area is hardly economically viable.

[0018] Functional films usable within the scope of the invention, however, are available in a wide variety. If they have a thickness of 0.2 mm or less, in particular 0.15 mm or less, but at least 0.01 mm, preferably at least 0.04 mm, they can be laminated to the base material without significantly impairing the overall mass of the door leaf, but with sufficient mechanical stability to maintain the desired function.

[0019] The functional film can be laminated to the base material using an adhesive, such as a pressure-sensitive acrylate adhesive. A suitable adhesive is characterized by sufficient elasticity while ensuring sufficient adhesion. When using a pressure-sensitive adhesive, the functional film can also be repositioned. In the manufacture of doors according to the invention, the adhesive can be provided in the form of an adhesive layer of the functional film, which, after being laminated to the base material, forms a boundary layer between the base material and other film layers of the functional film. In other embodiments of the invention, the base material itself is provided with the adhesive before lamination.

[0020] To achieve the desired properties, the functional film can include a PVC layer. Functional films suitable for manufacturing the inventive gates, which are already equipped with a pressure-sensitive acrylic adhesive as a precursor, are offered under the trade names 3M Wrap Film 2080 and 3M Scotchcal Film Clear View 8150. These functional films comprise a cast PVC layer and a layer of a pressure-sensitive acrylic adhesive. The cast PVC layer can have a layer thickness of 50 µm to 100 µm. The adhesive layer can have a thickness of less than 30 µm.

[0021] The various functional films, featuring a cast PVC layer and a pressure-sensitive acrylic adhesive, are particularly advantageous when used in conjunction with a polycarbonate base material. As already explained, the door leaf preferably forms a multi-layer wrap in the open position.

[0022] Particularly advantageously, within the scope of the invention, films known under the trade name "3M Obsidian Sun Protection Film" are used. These films are described in WO 2015 / 134824 A2. The 3M Obsidian Sun Protection Film comprises a clear first outer layer comprising polyethylene terephthalate (PET), a dye-added PET core layer comprising one or more dyes selected from the group consisting of Pigment Yellow 147, Pigment Red 177, Pigment Blue 60, Pigment Black 31, Pigment Red 149, and Pigment Red 122. The films further comprise a second outer layer comprising PET. The film is fade-resistant after exposure to 300 MJ / m² total irradiance integrated over the band from 259 nm to 385 nm and over time. The Obsidian Sun Protection Film can optionally be laminated to the base material using a pressure-sensitive acrylic adhesive.

[0023] According to the invention, the door leaf comprises a plurality of door leaf elements arranged one behind the other in the direction of door leaf movement, at least one of which comprises a bending region, wherein at least one stabilizing device extending perpendicular to the direction of door leaf movement is arranged between two door leaf segments and the mutually facing edge regions of the door leaf segments are held on the stabilizing device and at least one edge region of at least one segment is held floatingly 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 door leaf movement. Impairment of the visual appearance of corresponding roller doors is reduced if the edge region of at least one segment, which can also be referred to as the bending region of this segment, is equipped with a functional film.In this case, the floating bearing can effectively reduce grinding marks in the edge area of ​​the segment by the functional film.

[0024] In the doors just described, of the type described in WO 2018 / 219512 A1, hinge arrangements can be provided to guide the door leaf movement on edges of the door leaf that run at least partially in the direction of gravity in the closed position and are fastened to the door leaf. Each of these hinge arrangements can have a plurality of hinge members that are articulated to one another with respect to hinge axes that run perpendicular to the lateral edges and approximately parallel to the plane of the door leaf. According to the cited document, the space requirement in the open position is reduced by forming at least some of the segments of the door leaf from a flexible base material, such as a polycarbonate sheet, to provide bending areas. This material adapts to the coil to be formed even in the open position, thus enabling a small spiral diameter in the open position.Within the scope of the present invention, the segments of the known gates can be equipped with a functional film.

[0025] By guiding the door leaf with the help of the joint elements of the joint assembly coupled to the stabilizing device, tensile and shear forces occurring during door leaf movement can be transmitted via the joint assembly. This allows reliable guidance of the door leaf movement even at high door speeds, provided care is taken to ensure that the door leaf's stabilizing devices are securely coupled to the joint elements of the joint assembly. With the described kinematics, in which shear and tensile forces are transmitted via the framework formed by the joint assembly and the stabilizing device, considerable forces still arise in the area of ​​the transition between the stabilizing devices and the edge areas of the door leaf segments.These forces occur in particular during the transition to the opening position and the deflection of the door leaf movement to obtain a multi-layer wrap, with particularly high forces being observed when the door leaf segments have a flexible base material.

[0026] Although, within the scope of this invention, impairments to the segments that occur can already be reduced by using a functional film, it has also proven particularly useful for doors according to the invention if impairments can be prevented by a floating mounting of the door leaf segments with respect to the stabilizing device, without thereby impairing the overall stability of the entire construction. Within the scope of this invention, the floating mounting of the door leaf segments and the use of a functional film in the area of ​​this floating mounting work synergistically to avoid visual impairments. Within the scope of this invention, use can also be made of stabilizing devices and, if applicable,Existing joint arrangements form a stable framework through which the forces generated during door leaf movement can be transmitted without requiring rigid attachment of the door leaf segments, possibly equipped with a functional coating, to the stabilizing devices to stabilize the overall arrangement. Therefore, a floating bearing, which allows relative movement of the edge areas of the door leaf segments with respect to the stabilizing device, is feasible without impairing the door leaf movement or the stability of the entire door structure.

[0027] On the other hand, the floating bearing allows for the absorption of any play or relative movements that may occur between the stabilising device and the door leaf segment during the door leaf movement, without causing damage or visual impairment to the door leaf construction due to excessive force. As already explained, the visual impairment can be additionally counteracted by equipping the door leaf segments with a functional film.

[0028] The floating bearing not only enables relative movement between the edge area of ​​the door leaf segment and the stabilizing device in the direction of door leaf movement, but also, if necessary, in a direction parallel to the floating edge area or perpendicular to the direction of door leaf movement, so that even slight deviations of the door leaf movement from the specified path hardly cause damage to the door leaf segments. A synergistic effect can also be achieved here through the use of a functional film proposed by the invention.

[0029] In order to avoid detachment of the door leaf segments from the stabilizing devices, it has proven to be expedient if the relative movement of the floating edge region of at least one door leaf segment with respect to the stabilizing device is limited by means of a limiting arrangement, wherein the limiting arrangement becomes effective in particular in the case of a relative movement in a direction parallel to the direction of movement of the door leaf.

[0030] In a particularly preferred embodiment of the invention, the limiting arrangement has an extension of the floating edge region in a thickness direction running perpendicular to the door leaf plane spanned by the door leaf movement direction and the stabilizing device, and a receptacle formed in the stabilizing device for the extension of the edge region held floating thereon, wherein the receptacle has an opening penetrated by a transition region of the segment between the extension and a region of the segment exposed outside the stabilizing device, the width of which opening in the thickness direction is greater than the thickness of the transition region in the thickness direction, but smaller than the dimensions of the extension in the thickness direction.

[0031] In this embodiment of the invention, the stabilizing device according to WO 2018 / 219512 A1 is expediently designed as a stabilizing profile with a receiving area for receiving the extension of the edge region of the door leaf segment. The receiving area of ​​the stabilizing profile is adapted to the dimensions of the door leaf segment such that the door leaf segment is held on the stabilizing profile with play and without a clamping effect. By adapting the dimensions of the extension to the opening of the receiving area, it can be ensured that the edge region of the door leaf segment cannot be pulled out of the receiving area in a direction parallel to the direction of door leaf movement.

[0032] A further limitation of the relative movement of the edge area of ​​the door leaf segment with respect to the stabilizing device or the stabilizing profile can be achieved if the support is limited by a floor on the side opposite the opening, whereby the distance between the opening of the support and the floor in the direction of door leaf movement is greater than the length of the extension of the floating edge area in the direction of door leaf movement. The difference in dimensions determines the possible play of the floating support of the edge area with respect to the stabilizing profile.

[0033] In a particularly preferred embodiment of the invention, the door leaf segment is formed from a web-like material, wherein the extension of the door leaf segment can be formed by bending the floating edge region with respect to a bending axis running parallel to the stabilizing device. In this embodiment of the invention, no additional component is required to form the extension of the door leaf segment. The bending of the door leaf segment in the edge region running perpendicular to the direction of movement can be achieved, for example, by a roll-forming process. The edge region of the door leaf segment can be bent back on itself, for example in the manner of a hook, in order to thus obtain an extension of the floating edge region in the thickness direction.

[0034] As can be seen from the above explanation of products according to the invention, a method for producing a door according to the invention is essentially characterized by laminating a functional film onto a base material made of flexible material. The functional film can have an adhesive layer with which it is adhered to the base material.

[0035] For lamination, the functional film, together with the base material, can pass through a nip formed between two rollers of a laminator. To prevent bubble formation during lamination of the functional film, it has proven advantageous to divert fluids from a boundary layer formed between the functional film and the base material through fluid channels in the functional film. These fluid channels can be provided in the adhesive layer of the functional film.

[0036] If the wall area of ​​the door leaf segment is to be bent back onto itself in the manner of a hook as explained above, it has proven advantageous in the production of doors according to the invention if the functional film is laminated to a flexible base material in the form of a plastic sheet, preferably consisting at least partially of polycarbonate and / or SAN, and an edge of the plastic sheet equipped with the functional film is bent over along a bending line running parallel to this edge. If the segment prepared in this way is inserted into the stabilizing device, improved wear resistance can be achieved in the area of ​​the floating bearing of the segment.

[0037] In another embodiment of this method, the extension can be formed by a thickening of the edge region, in particular by gluing and / or welding a piping. Both the extension of the door leaf segment formed by bending the floating edge region and the extension formed by gluing and / or welding a piping can extend across the entire width of the door leaf. However, embodiments are also conceivable in which the extension extends only across part of the entire width of the door leaf. In particular, in the last-described embodiment of the invention, the extension can also be formed by individual extension elements applied to an edge of the door leaf segment, which are designed, for example, in the manner of clamp elements. Such extension clamps can be U-shaped components, which can be made, for example, from sheet metal.In the area where these extension clamps rest on the door leaf segment, hook-shaped projections can be provided to create a positive connection between the extension clamps and the edge of the door leaf segment, which may be made of plastic such as polycarbonate. The hook-shaped projections can also be designed as barbs. When the extension clamps are attached to the edge of the door leaf, the extension clamps engage the door leaf segments and prevent the door leaf segment from being pulled out of the receptacle of the stabilizing device. The extension clamps can extend across the entire width of the door leaf segment. However, embodiments are also conceivable in which two, three or more extension clamps are attached at a distance from one another to an edge of the door leaf segment.

[0038] With regard to the assembly of a door according to the invention, it has proven particularly advantageous if the stabilizing device has at least two releasably connected receiving parts which form opposing boundaries of the opening. In this embodiment of the invention, the edge region of the door leaf segment having the extension can first be placed against a boundary surface of a first receiving part which bounds the opening in a direction running perpendicular to the main surface of the door leaf segment or door leaf plane, and then the second receiving part which forms a further boundary surface of the opening can be added, whereby a positive connection between the two receiving parts is possible. For example, the other receiving part can be clipped onto the first receiving part.

[0039] If the stabilizing device has two receptacles spaced apart in the direction of door leaf movement for receiving the facing edge regions of adjacent door leaf segments, it has proven particularly expedient if the upper receptacle in the closed position and the corresponding opening are delimited by two releasably connected receiving parts. In this case, an upper edge of a door leaf segment can be inserted into the lower receptacle of the stabilizing device in a direction parallel to the stabilizing device.The door leaf segment can then be threaded into a guide device of the roller shutter and the lower edge of the door leaf segment can then be connected to a stabilising device arranged underneath by first placing the lower edge of the door leaf segment against a boundary surface of the first receiving part of the stabilising device which delimits the opening and then fastening the second receiving part to the first receiving part in a direction perpendicular to the plane of the door leaf to form the receptacle for the lower edge region of the door leaf segment.

[0040] With regard to a possibly desired sealing function, it may be expedient if a sealing material is accommodated in at least one receptacle, preferably an upper receptacle of the stabilizing device, preferably in the area of ​​the base of this receptacle. Additionally or alternatively, the sealing material can also be provided between the extension in the edge area of ​​a door leaf segment and the opening of the receptacle. With this arrangement, damping can be achieved during the door leaf movement if the extension strikes an edge of the opening. In this way, a slight tension can also be achieved between the stabilizing device and the door leaf segment, which can compensate for slight tolerances.A sealing material positioned between the extension and the opening can hold the pane tightly in position and reduce or completely prevent any noise generated when the door leaf segment moves relative to the stabilizing device. A suitable sealing material can be inserted into the stabilizing device's receptacle or attached directly to the door leaf segment's extension. This can be a sealing material that expands when moisture penetrates. Since moisture can hardly penetrate the lower receptacles in the closed position, sealing material is generally not required in these receptacles.As can be seen from the above explanations, the present invention is used with particular advantage in such gates in which at least one segment having a floating edge section has at least one pane which is formed at least in sections from a flexible and / or transparent material, such as polycarbonate.

[0041] In order to improve thermal insulation, it has proven particularly advantageous if at least one door leaf segment having a floating edge region has at least two panes spaced apart from one another in the direction of the door leaf thickness and extending approximately parallel to one another, each of which has at least one edge region held on the stabilizing device and facing an adjacent door leaf segment, wherein at least one edge region of at least one pane is held floatingly 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 door leaf movement. This edge region can be held on the stabilizing device in a similar way to that already described above.In this context, it has proven particularly advantageous if at least one stabilising device has two receptacles spaced apart from one another in the direction of the door leaf thickness, each for receiving an edge region of a pane of a door leaf segment.

[0042] In the embodiment of the invention just described, the panes of a door leaf segment are radially spaced from one another in the open position. They are moved into the open position along radially spaced paths and deform differently accordingly. This can potentially result in a brief collision when the door leaf is moved into the open position if the edge regions of the panes are identical and accommodated in identical receptacles of the stabilizing device. To remedy this deficiency, a particularly preferred embodiment of the invention provides that at least one edge region of the inner (outer) pane facing (away from) the winding axis in the winding is held with greater play relative to the stabilizing device than the corresponding edge region of the outer (inner) pane facing (away from) the winding axis in the winding.For this purpose, the distance between the opening of the mount for the edge area of ​​the radially inner (outer) pane and the base of this mount in the direction of door leaf movement can be greater than the corresponding distance of the mount for the edge area of ​​the radially outer (inside) panes. This allows any possible path difference (relative movement) caused by the different paths of the individual panes to be compensated.

[0043] The described double-pane arrangement creates an air cushion. The resulting chamber can be closed in the area of ​​the edges of the panes running parallel to the direction of door leaf movement. For this purpose, a filling material can be provided in the area of ​​at least one of the edges of at least one segment running parallel to the direction of door leaf movement, preferably between mutually facing boundary surfaces of the panes. In a preferred embodiment of the invention, this filling material can be made of a flexible material, such as an elastic bar. Elastic pads, such as foams, which are glued in or mechanically fixed, can be used as the filling material. The filling material thus also enables the necessary mobility when moving the door leaf into and out of the open position.Additionally or alternatively, fan-shaped plastic elements can also be used as filling material, which are connected to each other like hinges and can be clipped onto a pane.

[0044] Within the scope of the invention, the use of elastic pads or elastic fan elements for door leaf segments with only one pane is also contemplated in order to compensate for the offset between the pane and the reinforcement profile in the edge area. This allows a seal to be created with respect to the side part of the door. Since the door leaf segments of a door according to the invention are usually transparent at least in sections, it is particularly preferred within the scope of the invention if the filling material extends over 50% or less, in particular 20% or less, of the door leaf width in a direction parallel to the stabilizing devices, so that the transparency of the door leaf segments is only slightly impaired.

[0045] To achieve the desired thermal separation between the inside of the door leaf (interior) and the outside of the door leaf (exterior), it has proven particularly useful if at least one stabilizing device comprises at least two stabilizing elements spaced apart from one another in the direction of the door leaf thickness and connected to one another via a connecting element made of thermally insulating material. Thus, when using stabilizing elements of sufficient strength, such as those made of steel or aluminum, satisfactory stabilization can be achieved without compromising the thermal separation.

[0046] In order to provide a door that enables high door travel speeds, hinge arrangements are preferably arranged in the region of the lateral edges of the door leaf, which in the closed position run at least partially in the direction of gravity, and are fastened to the door leaf to guide the door leaf movement. These hinge arrangements can interact with corresponding fixed guide devices, such as guide rails. Each of the hinge arrangements has a plurality of hinge members that are articulated to one another with respect to hinge axes running perpendicular to the direction of movement or the lateral edges of the door leaf, so that the door leaf is connected to the hinge arrangements via the stabilizing devices. In this respect, the structure of doors according to the invention corresponds to the structure of the doors described, for example, in WO 2018 / 219512 A1.

[0047] In accordance with the known gates, in the case of roller gates according to the invention, at least one segment made of flexible material can be arranged between two stabilizing devices, wherein a lateral edge of the segment, which runs approximately perpendicular to the stabilizing devices and the hinge axes and approximately parallel to the hinge arrangements and the direction of movement of the gate leaf, can extend over two, three or more hinge members and at least one edge region of the segment can be held in a floating manner on a stabilizing device.

[0048] According to WO 2018 / 219512 A1, at least one stabilizing device can extend approximately parallel to a hinge axis and be connected along this hinge axis to at least two hinge arrangements, preferably to at least two hinge arrangements provided on opposite lateral door leaf edges. To increase the overall stability of the arrangement, at least one reinforcing strip can be provided, extending approximately parallel to the lateral door leaf edge or the direction of door leaf movement and attached to the door leaf. Similar to doors according to WO 2018 / 219512 A1, at least one, if necessary,An oval-spiral-shaped guide track can be provided for guiding the door leaf movement and for determining the opening position of the door leaf, wherein at least one joint member can have, on its side facing away from the door leaf, a guide arrangement which cooperates with the guide track to guide the door leaf movement and which preferably comprises at least one guide roller which is rotatably mounted with respect to a roller axis running parallel to the joint axes and which is preferably received in a guide track at least in the opening position of the door leaf.

[0049] With regard to simple adaptation of the structure of the door leaf of a roller door according to the invention, it has proven particularly expedient if an additional stabilizing device extending parallel to a hinge axis is connected only to the hinge assemblies. This embodiment of the invention makes it possible to variably design the stabilization of the door leaf while maintaining the same design of the individual door leaf segments or panes if the stabilizing device, which is only connected to the hinge assemblies, can be attached to the hinge assemblies regardless of the dimensions of the individual door leaf segments. It is not attached to the door leaf segments or panes. The attachment of this additional stabilizing device therefore does not require any adaptation of the geometry of the door leaf segments or panes.The variability of the attachment of this stabilization device is limited only by the division of the joint elements of the joint arrangement.

[0050] If additional impact protection is to be provided for roller doors according to the invention, the stabilizing device connected only to the hinge arrangements can be arranged between the lower stabilizing devices and those connected to the roller door panes. However, within the scope of the invention, it has proven particularly expedient if the stabilizing device not connected to the door leaf segments is arranged between the two upper stabilizing devices connected to the segments. In this way, a seal adapted to the height of the wall opening can be realized in the lintel area of ​​the wall opening without having to change the geometry of the door leaf segments and the other components of the roller door according to the invention.

[0051] In this context, it has proven particularly expedient if the stabilizing device, which is only connected to the hinge arrangements but not to the door leaf segments, has on its side facing away from the adjacent door leaf segment a sealing arrangement which can be placed on a lintel of the wall opening and / or has on its side facing the segment at least one sealing strip which extends approximately parallel to the hinge axes, preferably over substantially the entire door width, and which can be placed on the adjacent segment.

[0052] According to a particularly preferred embodiment of the invention, the leading edge of the door leaf during an opening movement can be formed by a leading stabilizing device that is non-rotatably connected to a segment made of a flexible material, which is non-rotatably connected to a guide arrangement. This arrangement prevents undesired bulging of the door leaf segment, as explained in detail in WO 2018 / 219512 A1.

[0053] To achieve a tight guide closure, it has proven expedient if at least one joint member of a joint arrangement is assigned a sealing arrangement that can be applied to a boundary surface, in particular the inner boundary surface, of the door leaf in the closed position, as explained in detail in WO 2018 / 219512 A1. Furthermore, within the scope of this invention, a pretensioning device can be provided that can be coupled to a trailing edge of the door leaf during the opening movement and pretensioned during the opening movement to brake the opening movement and to provide a pretensioning force that urges the door leaf from the open position into the closed position.

[0054] As can be seen from the above explanation, a door according to the invention expediently has a guide device for guiding the door leaf movement between the open position and the closed position. The invention is used with particular advantage in doors that enable high door running speeds. For this purpose, the guide device can enable contactless magnetic guidance. For this purpose, the guide device can have a magnetic field generating device on the door leaf side and a magnetic field generating device that is fixed with respect to the wall opening, wherein the magnetic field generating devices are designed to achieve contactless guidance of the door leaf movement along at least a section of the predetermined path in the region of at least one of the opposing lateral edges.

[0055] Corresponding guide arrangements are described in WO 2019 / 192976 A1. Of particular importance in this context is that the guide arrangement comprises at least one guide web arranged stationary with respect to the wall opening and extending along a section of the predetermined path, having two outer boundary surfaces and at least two guide devices attached to the door leaf, wherein a first outer boundary surface of the guide web forms a guide surface for a first guide device and a second outer boundary surface of the guide web forms a second guide surface for a guide device, so that the guide web is received between the guide devices attached to the door leaf.In this case, at least one guide device can, alternatively or in addition to the magnetic field generating devices, have a guide roller which is rotatably mounted with respect to a roller axis which runs perpendicular to the predetermined path and, in the closed position, approximately parallel to the door leaf and which rolls on a guide surface of the door leaf when the door leaf moves.

[0056] If contactless guidance of the door leaf movement is used with the aid of magnetic field generating devices, at least one magnetic field generating device, preferably at least one magnetic field generating device on the door leaf side, can have at least one permanent magnet. The magnetic field generating device on the door leaf side can expediently have two permanent magnets arranged on opposite sides of the guide web, which are attached to a common support that spans a door leaf-side edge of the guide web. Further details of the magnetic field generating devices are explained in WO 2019 / 192976 A1.

[0057] The invention is explained below with reference to the drawing, to which reference is expressly made with regard to all details essential to the invention and not further detailed in the description. The drawing shows: Fig. 1 a schematic representation of a lateral edge area of ​​a roller door according to the invention, Fig. 2 a detailed representation of the Fig. 1 transition between door leaf segments and a stabilizing device, designated A, Fig. 3 one of the Fig. 2 corresponding detailed representation according to a further embodiment of the invention, Fig. 4 a schematic representation of a lateral edge region of a roller door according to the invention according to a second embodiment of the invention, Fig. 5 a schematic representation of a roller door according to the invention according to a third embodiment of the invention, Fig. 6 a schematic representation of a roller door according to the invention according to a fourth embodiment of the invention, Fig. 7 a schematic representation of a roller shutter according to the invention according to a fifth embodiment of the invention and Fig. 8 a schematic representation of a production plant for the panes of a roller shutter according to the invention.

[0058] 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 door leaf movement indicated by the double arrow P. The door leaf segments consist at least partially of a flexible material and form bending regions of the door leaf. At least one door leaf segment, preferably each door leaf segment, can be equipped with a functional film on at least part of its outer boundary surface. 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 door leaf movement P, approximately in the plane of the door leaf. A lower edge of the upper door leaf segment 120, equipped with a functional film, is in the region of an upper receptacle 230 (cf. Fig. 2 ) of the stabilising profile 200 is kept floating, while an upper edge of the lower door leaf segment 110, which is also equipped with a functional film, is held in a lower receptacle 240 (cf. Fig. 2 ) of the stabilizing profile 200 is held in a floating manner. An upper edge of the door leaf segment 120 is held on a further stabilizing profile 200, just as a lower edge of the door leaf segment 110 is also held on a lower stabilizing profile 200.

[0059] The stabilizing profiles 200 are attached to a joint arrangement 300 extending approximately parallel to the direction of door leaf movement or parallel to a lateral edge of the door leaf 100. The joint arrangement 300 comprises a plurality of joint members 310 arranged one behind the other in the direction of door leaf movement and connected to one another in an articulated manner with respect to joint axes running perpendicular to the direction of door leaf movement P. Three joint members 310 are arranged between each 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.

[0060] On its side facing away from the door leaf segments 110 and 120, the hinge assembly has guide rollers 320 that are rotatably mounted with respect to roller axes running parallel to the hinge axes. The guide rollers 320 are arranged in pairs in the region of a hinge axis in such a way that they can accommodate a guide web between them and roll on opposing boundary surfaces of the guide web, thus enabling guidance of the door leaf movement, as described in PCT / EP2019 / 058221.

[0061] As is particularly evident in Fig. 2 As can be seen, 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 designed by bending the upper edge of the door leaf segment 112 onto itself as an extension in a door leaf plane perpendicular to the door leaf plane determined by the door leaf movement direction P and the stabilizing profile 200. Starting from the extension 112, the door leaf segment 110 extends downwards with a transition region through an opening 250 of the stabilizing profile 200 and is exposed outside the opening 250, as shown in Fig. 1 can be seen. Likewise, the door leaf segment 120 has an extension 122 accommodated in a receptacle 230 of the stabilizing profile 200. Starting from the extension 122, the door leaf segment 120 extends upwards with a transition region through an opening 225 and is exposed outside the opening 225.

[0062] The opening 250 is delimited by boundary surfaces 232 and 242, the distance between which, in a direction parallel to the door leaf thickness direction, is less than the thickness of the extension 112, but greater than the thickness of the transition region of the door leaf segment 110 between the extension 112 and the area exposed outside the stabilizing profile 200. Likewise, the opening 225 is delimited by boundary surfaces 212 and 222, the distance between which, in the door leaf thickness direction, is less than the thickness of the extension 122, but greater than the thickness of a transition region between the extension 122 and the area of ​​the door leaf segment 120 exposed outside the stabilizing profile 200.

[0063] How to continue in Fig. 2 As can be seen, the stabilizing profile 200 is designed in two parts, consisting of two detachably connected parts 210 and 220. The recess 240 at the lower edge of the stabilizing profile 200 is formed entirely by the first stabilizing profile part 210, while the receptacle 230 at 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.

[0064] To install a roller shutter of the type shown in the drawing, an upper edge of a shutter leaf segment can be inserted into the receptacle 240 in a direction parallel to the stabilizing profile 200, with a transition region between the extension 240 and a region of the shutter leaf segment exposed outside the stabilizing profile 200 passing through the opening 250. The module thus prepared can be threaded into a guide device, which can consist of a guide web arranged between the guide rollers 320.Subsequently, a lower edge 122 of the door leaf segment can be placed against 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 to form the mouth 225, which is penetrated by the transition region between an extension of the door leaf segment received in the receptacle 230 and a region of the door leaf segment exposed outside the stabilizing profile 200.

[0065] The distance between the opposing boundary surfaces 212 and 222, or 232 and 242, of the orifices 225 and 250, respectively, is greater than the thickness of the transition areas penetrating these orifices. This prevents a clamping effect in the transition areas.

[0066] Furthermore, the distance between the opening 225 or 250 and the bottoms of the receptacles 230 and 240 opposite the corresponding openings 225 or 250 is greater than the length of the extensions 122 or 112 in the direction of door leaf movement. This enables a relative movement of the door leaf segments 110 and 120 with respect to the stabilizing profile 200.

[0067] In the area of ​​the bottom of the receptacle 230, a sealing material can be arranged, which may swell if moisture penetrates.

[0068] The Fig. 3 The embodiment of the invention shown differs essentially from that shown in the Fig. 2 In the embodiment explained, a damping element 230 is arranged between the bent lower edge of the disc 120 forming the extension 122 and the lower boundary surface of the part 220 of the stabilizing profile 200. This damping element 230, on the one hand, seals the disc 120 floatingly mounted in the stabilizing profile 200, and on the other hand, preloads the disc 120 floatingly mounted in the stabilizing profile 200, helps compensate for tolerances, and holds the disc 120 taut in its position. Furthermore, the damping element 140 reduces noise that can occur when the bent lower edge of the disc 120 is moved in the receptacle 230 and strikes the lower boundary surface of the part 220 of the stabilizing profile.

[0069] The Fig. 4 The embodiment of the invention shown differs essentially from that shown in the Figuren 1 and2In the embodiment of the invention shown, the door leaf segments comprise two panes 120a and 120b, or 110a and 110b, which run essentially parallel to one another and are each designed as flexible polycarbonate panes. The lower edges of the panes 120a and 120b are each provided with an extension formed by bending these edges, which are mounted in a floating manner in receptacles 230a and 230b of the stabilizing profile 1200. The upper edges of the panes 110a and 110b of the lower segment are held in receptacles 240a and 240b of the stabilizing profile 1200. An air cushion 180, which promotes thermal insulation, is formed between the panes 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 cushions 190 provided between the discs 120a and 120b or 110a and 110b.These pads 190 can be designed as elastic rungs. For example, elastic pads made of a foam material can be used, which are glued or mechanically fixed. The elastic design of the pads 190 also allows for the necessary flexibility when wrapping the door leaf into the spiral guide track when reaching the opening position.

[0070] Additionally or alternatively, fan-shaped plastic elements, which are connected to each other like hinges, can be clipped onto the pane in the chamber 180. The use of corresponding elastic pads or elastic fan elements for door leaf segments with only one pane, as shown in Figur 1 and 2 The screws shown are designed to compensate for the offset between the pane and the stabilizing profile in the wall area. This can improve the sealing of the door leaf in the closed position.

[0071] The Fig. 5 The embodiment of the invention shown differs essentially from that shown in the Fig. 4 explained embodiment, that the chamber 2230b of the stabilizing profile 2200, which serves to receive the extension 230b at the lower edge of the disc 110b, has a greater depth in the direction of door leaf movement than the chamber 230a, which serves to receive the extension 122a formed at the lower edge of the disc 110a. This ensures that the disc 110b, which is radially inward in the open position, is mounted in the receptacle 230b with greater play than the disc 110a, which is radially outward in the open position. This allows the different deformation of the discs 110a and 110b to be compensated when the door leaf reaches the open position, as in Fig. 5b ) is illustrated.

[0072] The Fig. 6 The embodiment of the invention shown differs essentially from that shown in the Fig. 5 In the embodiment of the invention explained above, the stabilizing profiles 3200 are constructed in three parts overall, with parts 3210, 3220, 3230 being constructed consecutively in the direction of the door leaf thickness. The part 3210, which is located inside in the closed position of the door leaf, as is the part 3220 of the stabilizing profile 3200, which is located 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 sufficient overall stability of the stabilizing profiles 3200, heat loss between the interior and exterior spaces via the stabilizing profiles 3200 can be effectively reduced.

[0073] The Fig. 7 The embodiment of the invention shown differs essentially from that shown in the Fig. 1 and 2In the embodiment of the invention shown, a stabilizing profile 400 is provided between the stabilizing profiles 200 fixed to the lower and upper edges of the panes 110, 120, which is fastened exclusively to the joint members of the joint arrangement 300. This additional stabilizing profile 400 can be positioned independently of the pane 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 panes 110, 120, while on the side facing the pane 120 it is designed with hose seals 420 that rest against the pane 120. Since the additional stabilizing profile 400 is not fastened to the pane 120, it can be fastened to any joint members 310 regardless of the pane geometry.The position of the 410 seal can thus be adjusted to the height of the wall opening. This not only improves the sealing effect but also increases the overall stability of the roller shutter door.

[0074] In Fig. 8 A system for the production of panes for the door leaf segments of roller doors according to the invention is shown schematically. When using the Fig. 8 In the system shown, a plastic sheet consisting at least partially of polycarbonate is continuously unwound as coiled material from a decoiler 510 in a conveying direction F. A functional film is laminated onto the plastic film using a laminator not shown in the drawing. The plastic sheet passes through a trimming unit 520, in which the exact width of the plastic sheet is set, and then a double-head profiling system 530, in which the edges of the plastic sheet running parallel to the conveying direction F are bent to create the extension of the panes. The profiling system has, as shown in Fig. 8As can be seen, a plurality of forming rollers are used to gradually bend the edges of the material web. After leaving the double-head profiling systems 530, slices of a specified 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 deposited on an outfeed table 550. The following features of the processes are of particular importance. They can be significant individually or in combination: The plastic sheet is produced by extrusion and wound into a coil or roll. The width of the plastic sheet or coil width depends on the extruder size. The width of the extruded plastic sheet, such as an extruded polycarbonate sheet, can vary. With a trimming station, the material sheet can be precisely trimmed to the desired width, preferably before it enters the forming station. In the trimming station, a wider plastic sheet can be split into a narrower size. This allows the required pane size to be adjusted depending on the door size. A plastic sheet, especially a polycarbonate sheet, can exhibit significantly higher restoring forces than steel after passing through a forming device, which may be designed as a double-head profiling system. Therefore, significant overbending is preferably carried out during the process in order to ultimately achieve the desired contour.It is also taken into account that the forming process can continue to recover over time and that the formed state can only slowly leave the shape it obtained after leaving the forming station under the influence of the restoring forces. In order to reduce the restoring forces, it has proven useful to support the forming process with heat. When using polycarbonate sheets, the sheets are preferably heated to a temperature of between 150 and 170 degrees Celsius, at least in the forming area. This has the following effects: 1. The forming process is gentler with less stress on the polycarbonate, thus preventing cracks from forming in the forming area. 2. The forming stresses are neutralized and the restoring forces are minimized. Plastic, especially polycarbonate, has less inherent stability than steel.It has therefore proven particularly useful if the plastic sheet is supported between the edges running parallel to the conveying direction, in the area of ​​which the individual forming stages can also be arranged. The plastic sheet can be supported between the edges with the help of at least one belt conveyor. The belt conveyor supports the plastic sheet between the edges running parallel to the conveying direction and conveys it in the conveying direction. It has proven particularly useful if the plastic sheet is held from above and below with the help of suitable conveyors in order to ensure stability for a continuous forming process. Instead of belt conveyors, other conveying devices or support devices suitable for supporting the plastic sheet can also be used.

[0075] The invention is not limited to the exemplary embodiment explained with reference to the drawing. For example, the extensions in the area of ​​the edges of the door leaf segments can also be formed by glued or welded piping. The stabilizing profiles 200 can be designed as a single piece, so that the extended edges of the door leaf segments must be inserted laterally into the stabilizing profiles. Instead of a guide arrangement in which two guide rollers rest against opposing boundary surfaces of a guide web, guide arrangements in which guide rollers are accommodated in a guide rail can also be used. Instead of guidance by means of guide rollers, a contactless magnetic guide can also be used.

[0076] The functional films used according to the invention can also comprise so-called low-E films with a high degree of reflection. This allows good thermal insulation to be achieved with a comparatively thin pane thickness. Of course, the stabilizing devices of doors according to the invention can also be covered with film to enable a uniform door leaf design.

Claims

1. Door, in particular roller door, having a door leaf (100) which can be moved along a path having a deflection section between an open position, in which it at least partially exposes a wall opening, and a closed position, in which it at least partially closes the wall opening, and which has at least one bending region which can be deformed during the movement of the door leaf along the deflection section and is composed of a flexible base material, such as for instance polycarbonate, wherein a functional film is laminated onto at least part of at least one boundary surface of at least one bending region (110, 120), characterized in that the door leaf has a plurality of door leaf segments (110, 120) which are arranged one behind the other in the direction of movement of the door leaf and of which at least one comprises a bending region, wherein at least one stabilizing device (200, 2200, 3200) which extends perpendicularly to the direction of movement of the door leaf is arranged between two door leaf segments (110, 120), and the mutually facing edge regions (112, 122) of the door leaf segments (110, 120) are held on the stabilizing device (200, 2200, 3200), and at least one edge region (112, 122) of at least one segment (110) is held in a floating manner on the stabilizing device (200, 2200, 3200) in such a way that a relative movement of this edge region (112, 122) with respect to the stabilizing device (200, 2200, 3200) is possible at least in the direction of movement of the door leaf.

2. Door according to Claim 1, characterized in that a boundary surface of the functional film which faces away from the base material has a higher scratch resistance according to DIN EN ISO 12137 than the base material.

3. Door according to Claim 1 or 2, characterized in that colouring pigments are added to the functional film.

4. Door according to one of the preceding claims, characterized in that a boundary surface of the functional film which faces away from the base material is at least partially mirror-coated and / or is embodied with a decoration, such as, for instance, a decoration in carbon optics, wood optics or brushed aluminium and / or as a low-E film.

5. Door according to one of the preceding claims, characterized in that the functional film has a thickness of 0.2 mm or less, in particular 0.15 mm or less, but at least 0.01 mm, preferably at least 0.04 mm.

6. Door according to one of the preceding claims, characterized in that the functional film is laminated onto the base material by means of an adhesive, such as, for instance, a pressure-sensitive acrylate adhesive.

7. Door according to one of the preceding claims, characterized in that the functional film has a PVC layer, in particular a cast PVC layer.

8. Door according to one of the preceding claims, characterized in that the functional film has at least one layer comprising polyethylene terephthalate (PET), in particular a clear outer layer comprising first PET, a clear outer layer comprising second PET and a core layer comprising PET arranged between the first and the second layer, wherein at least one pigment is added to the core layer.

9. Door according to one of the preceding claims, characterized in that the door leaf forms a multi-layer roll in the open position.

10. Door according to Claim 9, characterized by a delimiting arrangement (225, 250, 230, 240) delimiting the relative movement of the floatingly held edge region (112, 122) with respect to the stabilizing device (1200, 2200, 3200).

11. Door according to Claim 10, characterized in that the delimiting arrangement has an enlargement of the floatingly held edge region (112, 122) in a thickness direction running perpendicularly to the door leaf plane spanned by the door leaf movement direction and the stabilizing device, and a receptacle (230, 250), formed in the stabilizing device, for the enlargement of the edge region (112, 122) held floatingly thereon, wherein the receptacle has an orifice which is penetrated by a transition region of the segment (110, 120) from a transition region of the segment, preferably equipped with a functional film, between the enlargement and that region of the segment (110, 120) which is exposed outside the stabilizing device (1200, 2200, 3200) and is likewise preferably equipped with a functional film, the width of which orifice in the thickness direction is greater than the thickness of the transition region in the thickness direction, but smaller than the dimensions of the enlargement (112, 122) in the thickness direction.

12. Door according to Claim 11, characterized in that the receptacle (230, 250) is delimited by a base on its side opposite the orifice, wherein the distance between the orifice (225) and the base in the door leaf movement direction is greater than the length of the enlargement of the floatingly held edge region (112, 122) in the door leaf movement direction.

13. Door according to Claim 11 or 12, characterized in that at least one enlargement (112, 122) is formed by bending the floatingly held edge region, preferably equipped with a functional film, with respect to a bending axis running parallel to the stabilizing device (1200, 2200, 3200).

14. Door according to one of Claims 11 to 13, characterized in that at least one enlargement (112, 122) is formed by a thickening of the edge region, in particular by adhesively bonding and / or welding on a keder.

15. Door according to one of Claims 11 to 14, characterized in that at least one enlargement is formed by an enlargement element, such as for instance an enlargement clip, held in a form-fitting, force-fitting and / or integrally bonded manner on an edge region of at least one door leaf segment.

16. Door according to one of Claims 11 to 16, characterized in that the stabilizing device has at least two receptacle parts which are connected releasably to one another and which form boundary surfaces of the orifice which lie opposite one another.