High-speed door

Abstract

The invention relates to a high-speed door comprising a flexible door leaf (12; 14), at least one rotatable shaft (8) which is designed to wind up the door leaf (12; 14), and a door frame (2), against which at least one contact region (28) of the door leaf (12; 14) sealingly rests in the closed state of the high-speed door. First magnetic holding elements (26) are arranged in the door frame (2), and second magnetic holding elements (30; 44) are arranged in the door leaf (12; 14) in the contact region (28) such that the door leaf (12; 14) is magnetically kept in contact with the door frame (2).

Description

Title: High-speed door Description

[0001] The invention relates to a high-speed door.

[0002] High-speed doors are used, for example, on warehouse doors to enable them to open and close quickly. These doors feature a flexible door leaf that is wound onto a shaft for opening. One such door is known from WO 2016 / 131476 A1. Such doors are used, for example, to close off cold storage or freezer rooms and must therefore have sufficient insulation properties. The doors should seal well against a door frame while simultaneously allowing quick opening.

[0003] The object of the invention is to provide a high-speed door with a flexible door leaf, which enables improved sealing to a door frame.

[0004] This object is achieved by a high-speed door having the features specified in claim 1. Preferred embodiments emerge from the subclaims, the following description, and the attached figures.

[0005] The high-speed door according to the invention has a flexible door leaf, which is attached to a rotating shaft in such a way that it can be wound up by rotating the shaft. The shaft is connected to a suitable rotary drive, for example, an electric motor, and can preferably be driven in both directions. so that the door leaf can be wound up and unwound again. During unwinding, the movement of the door leaf can be assisted by gravity or, if the door leaf is sufficiently heavy, can be achieved solely by gravity, at least in some sections.

[0006] The high-speed door has a door frame against which the door leaf rests sealingly when closed. In this way, a contact area of ​​the door leaf rests sealingly against the door frame. The door frame has, in particular, two lateral, essentially vertically extending door frame parts which laterally delimit the door opening and serve to support and / or guide the door leaf in the area of ​​its side edges. To ensure a sealed connection, the door leaf can be guided in a guide, whereby the guide can be designed, for example, such that one side of the guide presses the door leaf against the door frame when closed. The door frame and the door leaf are also designed such that the door leaf adheres to the surface of the door frame to ensure a tight connection. This is achieved by magnetic forces.Such a design has the advantage that the door leaf and the door frame can be constructed in such a way that the door leaf rests against the outside of the door frame and can move freely in a direction away from the door frame. This is advantageous, for example, in cold storage rooms, since such a high-speed door can be opened from the inside by pushing it away from the door frame, even if the drive fails. It also prevents damage to the door leaf if, for example, a forklift truck accidentally drives into the closed door. In such a case, the door leaf can swing open away from the door frame without having to be wound up.

[0007] To achieve a magnetic connection of the door leaf to the door frame, the door frame has initial magnetic holding elements. These can be embedded in the door frame or can also be used as Magnetic tape is applied to the surface of the goal frame. The first magnetic holding elements are preferably arranged on the vertical sides of the goal frame, distributed over the entire height of the goal, so that the goal leaf can be tightly seated against the goal frame over the entire height. Complementarily, second magnetic holding elements are arranged in the goal leaf, at least in one contact area, such that the goal leaf is held magnetically in contact with the goal frame when it is closed. The contact areas of the goal leaf preferably extend along the side edges of the goal leaf over its entire height. The second magnetic holding elements are preferably arranged distributed over the entire height so that they can adhere to correspondingly distributed first magnetic holding elements.

[0008] Preferably, a plurality of individual second magnetic holding elements, for example metal plates or metal plates, are arranged in the door leaf and are movable relative to one another. Thus, the metal elements do not impair the flexibility of the door leaf and do not hinder winding.

[0009] The first magnetic holding elements are preferably permanent magnets, and the second magnetic holding elements are preferably ferromagnetic metal elements, for example, made of steel. However, a reverse arrangement is also conceivable, in which the second magnetic holding elements are permanent magnets and the first magnetic holding elements are ferromagnetic metal elements. A configuration in which the first and second magnetic holding elements are permanent magnets is also possible, in which case the permanent magnets on the door frame and in the door leaf are aligned so that they attract each other.

[0010] Preferably, the second magnetic holding elements are embedded in the material of the door leaf, for example, cast into at least one material layer or enclosed between two material layers. In a special embodiment, the door leaf can be made of felt material, and the second magnetic holding elements, for example in the form of ferromagnetic metal elements, are more preferably embedded in the felt material or located inside the felt material, so that the contact area on its surface is not impaired by the second magnetic holding elements, and a tight contact with the door frame can be achieved in this area due to the flexibility of the material.

[0011] Further preferably, pockets can be formed in the interior of the felt material adjacent to at least one side edge, preferably adjacent to both vertical side edges, in which the second magnetic holding elements, for example ferromagnetic metal elements, are arranged. The pockets can be introduced, for example, as incisions from the side edge. The second magnetic holding elements, for example metal plates, can be inserted into these incisions from the side edge. These pockets are closed laterally after the insertion of the second magnetic holding elements, preferably by a seal or adhesive. In this way, the second magnetic holding elements are securely held in the pockets inside the felt material. The seal is preferably the same seal with which the entire side edge of the felt material is sealed, i.e.As described below, preferably a seal which is applied in liquid form to the side edge and can therefore also run into the bag and securely close or seal it.

[0012] According to a further possible embodiment, the second magnetic holding elements can be integrated into a contact element, preferably a contact strip, which is fastened to the surface of the door leaf in at least one contact area. Such a contact element or contact strip can protect or reinforce the door leaf in the contact area and serve to ensure a tight fit against the door frame. The contact element or contact strip is preferably elastic, which on the one hand ensures that it can be wound up together with the door leaf and on the other hand improves the seal against the door frame. Elastic materials that can be used include, for example, elastic polymers or rubber. Such a contact element or contact strip can be firmly connected to the door leaf, for example by sewing and / or gluing.

[0013] In another possible embodiment, the second magnetic holding elements can be formed from ferromagnetic wires embedded, for example, cast, in an elastic material, preferably rubber. This creates movable second magnetic holding elements that are embedded in a protected manner and can be easily wound up with the door leaf. Preferably, the ferromagnetic wires can be embedded in the at least one contact element in the form of a contact strip. Thus, the contact strip creates a well-sealed contact area, and at the same time, the ferromagnetic wires are protected, in particular, by being embedded in an enveloping material that protects them from corrosion.

[0014] The door leaf can preferably be made of a felt material. Felt has good insulation properties, sufficient flexibility for winding, and, in addition, good durability. The felt material can further preferably be provided with a vapor-tight coating on at least one surface. The vapor-tight coating prevents moisture from penetrating the felt material through the surface. Moisture would be particularly problematic when used as a door closing off a freezer room, as the moisture could freeze in the felt material, making the felt material insufficiently flexible for winding. Furthermore, moisture would impair the insulation properties. The vapor-tight coating is applied to at least one surface, preferably at least on the surface facing a room with atmospheric humidity. When used as a cold room door, this is particularly the warm side of the high-speed door.

[0015] In a preferred embodiment, the door leaf can be provided with a vapor-tight coating on each of its two opposite surfaces. This prevents moisture penetration on each side of the felt material. Furthermore, the vapor-tight layer preferably has a smooth, easy-to-clean surface and can be customized in appearance, for example, in color.

[0016] The felt material of the door leaf is preferably made of natural and / or synthetic fibers. Wool fibers, for example, can be used as natural fibers. The felt is preferably wool felt, i.e., preferably a felt material made entirely of natural wool. Such wool felt has good insulating properties, can be used over a wide temperature range, and, as a natural product, also has good ecological properties. However, synthetic fibers can also be mixed into the felt material, or the felt material could alternatively be made entirely of synthetic fibers, depending on the application.

[0017] Preferably, the felt material of the door leaf is designed to be used in a temperature range of -40°C to +80°C, more preferably up to +150°C. This makes the door leaf suitable for use in cold or freezer rooms as well as for applications in which heated rooms need to be sealed, for example, rooms for drying and / or curing certain products.

[0018] In a preferred embodiment of the invention, a vapor-tight coating of the door leaf is made of a plastic material, more preferably of a polyurethane material. Such plastic materials exhibit good elasticity or flexibility, which is necessary to enable the door leaf to be rolled up. Furthermore, such plastic coatings can be easily applied, for example, to a felt material and can ensure the desired vapor-tightness. A polyether-based polyurethane is particularly preferred. This polyurethane exhibits the desired cold resistance. However, other materials that exhibit the desired vapor-tightness can also be used. These can be suitable plastic materials or metal-containing coatings. Multilayer coatings can also be used.

[0019] The vapor-tight coating of the door leaf is further preferably designed to exhibit flexibility that allows the door leaf to be rolled up even at temperatures below 0°C, and more preferably at temperatures below -20°C. This flexibility or elasticity preferably ensures that the door leaf can be rolled up even at curvature radii of less than 10 cm without the coating breaking or tearing. The desired elasticity at low temperatures enables the use of the high-speed door to close freezer rooms.

[0020] According to a further preferred embodiment, the vapor-tight coating of the door leaf can be UV-stable. This can be ensured by an additional surface coating or, in the case of a single-layer coating, by a suitable coating material. The coating is considered UV-stable if, when exposed to daylight and direct sunlight, it exhibits a durability typical for such high-speed doors. This is preferably at least five years, more preferably more than ten years. Particularly preferably, the UV stability also ensures color stability of the coating material, so that the optical properties of the door leaf remain essentially unchanged over its service life, even when exposed to sunlight.

[0021] According to a further possible embodiment, the vapor-tight coating can be glued to the felt material and / or cast or melted onto the felt material. For example, the coating material can be applied in liquid or pasty form to the surface of the felt material and, if necessary, pressed onto it before it then assumes its final solidity. This can be achieved by cooling or chemical curing. Alternatively or additionally, the coating material can be solvent-based. Application can be carried out, for example, using calender rolls. However, it would also be conceivable to form the coating in the manner of a film and then bond it to the felt material, for example by heating or with the aid of an adhesive which is introduced between the film and the felt material. In this way, the felt material can be provided with a vapor-tight coating on one or both surfaces.

[0022] The side edges of the door leaf, which is made of a felt material, for example, are further preferably sealed, preferably sealed with a plastic material. If, for example, both surfaces of the felt material are provided with a coating, the free side edges of the felt material remain, which can then be sealed. But even if only one surface of the felt material is provided with the coating, it can be expedient to additionally seal the side edges. The sealing is preferably carried out with a material which corresponds to the material of the coating or has similar chemical properties. Particular preference is given to using a liquid sealing material which can penetrate into the structure of the felt material from the side edge and hardens within the structure, thus sealing the side edge. A liquid plastic such as liquid silicone could be used for this.Further preferably, the sealing for the side edges is also made of a material that is vapor-tight. However, since the side edges are located in the area of ​​a door frame, they are exposed to less significant temperature differences, so that in individual cases, less condensation of moisture is to be expected in these areas. Therefore, the edge sealing may, in individual cases, be less vapor-tight than the surface coating.

[0023] In a special embodiment, the door leaf can comprise at least two interconnected layers of felt material, which are preferably glued together. The formation of multiple layers of felt material makes it possible, on the one hand, to connect different felt materials to one another. On the other hand, it makes it possible to form door leaves with varying thicknesses, as described, for example, further below. Furthermore, it is possible to produce door leaves with greater thicknesses in this way. For example, to form a 20 mm thick door leaf, two 10 mm thick felt layers can be connected to one another, in particular glued. It is also possible to form a double-sided felt layer from single-sided coated felt layers. A properly coated door leaf is formed by joining two felt layers, each coated on one surface, such as a vapor-tight coating, to one another, in particular by gluing them together, at their uncoated surfaces. Alternatively or in addition to gluing, the different layers of felt material can also be sewn together. If the coating is penetrated in the process, it is advantageous to cover the seam areas with another layer of vapor-tight material, in particular by gluing it over. In a similar way, other production-related perforations in the coating can also be subsequently closed or sealed.

[0024] In a further specific embodiment of the invention, the door leaf can be designed as a double door leaf. Such a double door leaf has two door leaf parts which are arranged such that they extend parallel to one another and are spaced apart from one another in a direction transverse to their surface. In this way, a cavity is formed between the two door leaf parts. At the lower end, the two door leaf parts are connected to one another. This is preferably done in an arc-shaped deflection of the door leaf parts, so that the two door leaf parts can be manufactured from one piece. A corresponding door leaf material is folded over 180 degrees in the area of ​​the deflection, so that two spaced-apart, parallel door leaf parts are created, which are connected to one another in the area of ​​the deflection by an arc which is essentially semicircular in cross-section, i.e.The door leaf essentially forms a loop in cross-section. One of the door leaf elements rests against the door frame with one or more contact areas. This door leaf part has the described second magnetic holding elements in its contact areas. In a special embodiment, a running weight can be arranged in the area of ​​the deflection, which preferably extends essentially over the entire door. The roller weight weighs down the door leaf, ensuring that the door leaf sections are always kept stretched. It also supports the unwinding of the door leaf, as its weight pulls it downward. However, a design without a roller weight is also possible. Such a double door leaf offers better insulation properties, but also allows for very easy winding and pressing against a door frame.

[0025] One of the door leaf parts is preferably connected at its upper end to the at least one rotatable shaft in order to be able to wind up the door leaf. This is preferably the door leaf part which is further away from a door frame. The other door leaf part is preferably fixed at its upper end. The door leaf is preferably fixed in a region of the upper end of the door frame, more preferably in the region of the horizontal upper part of the door frame. A door leaf designed and arranged in such a way is wound up in such a way that the first door leaf part is wound up on the shaft and the deflection moves upwards. This means that the door leaf part fixed at the upper end is unrolled or lifted off a door frame from its lower end during winding up. This means that the door leaf part moves upwards from its lower end and in the process horizontally away from the door frame.This allows for easy opening of the door leaf, as there is essentially no friction to overcome between the door leaf and the door frame. However, an alternative design would also be possible to not fix the second door leaf section but connect it to a second shaft, so that the door leaf is opened by winding both parts of the door leaf onto a separate shaft.

[0026] According to a further possible embodiment, a double door leaf can be designed in such a way that the two door leaf parts are are of different thicknesses. The door leaf parts are defined as the surfaces which extend between the top and bottom of the door when closed. The different thicknesses have the advantage that, for example, the side of the door leaf facing a cold area can be made thicker and thus have better insulation properties, while the second door leaf part, which faces a warmer area, can be made thinner in order to reduce the mass of the door leaf for winding up. The different thicknesses of the door leaf parts can be achieved, for example, by a multi-layer construction in which the thinner door leaf part has one less layer of material or layer of felt material than the thicker part.For example, the thicker door leaf section can be made up of two layers, and the second layer of felt material can end in the area of ​​the lower end of the door leaf, particularly in the area of ​​the deflection, while the first layer of felt material is passed through and also forms the second door leaf section. This can also be achieved accordingly with more than two layers. Alternatively, it is possible to design the two door leaf sections as separate door leaf sections and to connect them to one another in the area of ​​the lower end, i.e. particularly in the area of ​​a deflection, for example by sewing them together. Both door leaf sections can be provided with a vapor diffusion-tight coating on one or both surfaces, as described above. In this case, it is also possible, for example, to provide only one door leaf section with a coating on both surfaces, while the other door leaf section is only provided with a coating on one side.Furthermore, not both door leaf sections need to have vapor-tight coatings. For example, one door leaf section could have a different type of coating on at least one surface. For example, the door leaf section that does not face or border a cold room must have a different type of coating. not necessarily have to be coated on both sides or possibly not at all to be vapour-tight.

[0027] The invention is described below by way of example with reference to the accompanying figures, which show: Fig. 1 is a schematic plan view of a high-speed door according to a first embodiment of the invention, Fig. 2 is a side view of a high-speed door according to Figure 1, Fig. 3 is a schematic plan view of a high-speed door according to a second embodiment of the invention, Fig. 4 is a side view of the high-speed door according to Figure 3, Fig. 5 is a side view of the high-speed door according to Figure 3 in an alternative embodiment, Fig. 6 is a schematic sectional view of a door leaf according to a first embodiment, Fig. 7 is a schematic sectional view of a door leaf according to a second embodiment, Fig. 8 is a sectional view of the door leaf according to Figure 6 parallel to the surface, Fig. 9 is a plan view of a door leaf according to another possible embodiment, and Fig. 10 shows a section of a cross-section of the door leaf according to Fig. 9 in contact with a door frame.

[0028] The high-speed doors shown in Figures 1 and 3 have a door frame 2, which is formed from two lateral frame parts 4, which extend essentially vertically, and an upper horizontally extending frame part 6. At the upper end of the door, i.e. in the vicinity of the upper frame part 6, a rotatable shaft 8 is arranged, which extends horizontally and is driven by an electric drive motor 10. The high-speed door according to Figure 1 further has a flexible door leaf 12, which is connected at its upper end to the shaft 8, so that the door leaf 12 can be wound up onto the shaft 8 by rotating the shaft 8. The door leaf 12 is accordingly flexible and made of a felt material, as will be described in more detail below with reference to Figures 6 to 8. As can be seen in the side view of Figure 2, a simple door leaf is provided in the embodiment according to Figure 1, i.e.There is a single door leaf part which is attached to the door frame 2 and can be wound onto the shaft 8.

[0029] In contrast to the exemplary embodiment according to Figures 1 and 2, in the exemplary embodiment according to Figures 3 to 5, a door leaf 14 is used which is designed as a double door leaf. As can be seen in the side views according to Figures 4 and 5, the door leaf 14 is formed from a door leaf web which is deflected or folded over by 180 degrees at the lower end, forming the loop shape visible in the side view in Figures 4 and 5. In this way, in the closed state, two door leaf parts 16 and 18 are formed, which are connected to one another at the lower end via a deflection or a bend 20. The first door leaf part 16, which is located closer to the door frame 2 or rests against it, is fixed at the upper end 22 to the upper frame part 6 of the door frame 2. The upper end of the second door leaf part 18 is connected to the shaft 8 or is wound onto the shaft 8. When the shaft 8 rotates in the direction of rotation A, the second door leaf part 18 is wound up, and at the same time, the first door leaf part 16, starting from its lower end, is pulled off the door frame 2 and upwards. The deflection 20 or the arch 20 also moves upwards, and the door opens. To close, the shaft 8 is rotated in the opposite direction, and the door slides downwards again or falls downwards due to its weight. In the exemplary embodiment according to Figure 5, a running weight 24 is also located in the arch 20, which preferably extends across the entire width of the door. This running weight 24 weighs down the door leaf 14, pulls it downwards, and rolls in the deflection 20 when the door leaf 14 is opened and closed.

[0030] In order to hold the door leaf 14 tightly against the door frame 2, a magnetic holding device is provided. For this purpose, first magnetic holding elements in the form of permanent magnets, designed here as magnetic strips 26, are arranged in the two lateral frame parts 4. These magnetic strips could also be designed as magnetic bands on the surface of the lateral frame parts 4. Furthermore, it would also be conceivable to embed a plurality of individual magnets in the lateral frame parts 4. The door leaf 14 rests on the surface of the lateral frame parts 4 with lateral contact areas 28, which border the side edges of the door leaf. In this first embodiment, second magnetic holding elements are arranged in the contact areas 28 inside the first door leaf part 16. These second magnetic holding elements are designed as ferromagnetic metal elements in the form of metal plates 30, as can be seen in Figure 8.Figure 8 shows a schematic section of the door leaf part 16. The metal plates 30 are attracted by the magnetic force of the magnetic strip 26, so that the door leaf part and thus the entire door leaf 14. is held on the door frame 2. The door leaf 14 with the door leaf part 16 only rests on the surface of the door frame 2. This has the advantage that the door leaf can be lifted off the door frame 2 in the direction of arrow B if sufficient force is exerted on the door leaf 14. This is a safety feature because, on the one hand, the door can be opened at any time from the side of the door frame 2 simply by pressing on the door leaf 14 in the direction of arrow B. This is advantageous, for example, in cold stores or cold rooms because the door can always be opened from the inside. In addition, the door can also open if a transport device such as a forklift truck accidentally drives into the door from the inside. The door leaf 14 then simply swings open in the direction of arrow B and then falls back against the door frame 2, where it is then held tightly in place again.When the door leaf 14 is wound up, the metal plates 30 at the lower end of the door leaf 14 are pulled off horizontally from the door frame 2 or the side frame parts 4 one after the other. The arrangement of a plurality of metal plates 30 ensures the mobility of the door leaf 14, which is necessary for winding up.

[0031] A preferred further embodiment of the door leaves 12, 14 is described in more detail with reference to Figures 6 to 8, which schematically show a section of a door leaf 12 or 14. The door leaf is made of felt, in particular wool felt. In the exemplary embodiment according to Figure 6, the door leaf 12, 14 has a wool felt layer 32, which is provided on its opposite surfaces with a coating 34 which is vapor-tight and firmly bonded to the felt material. This vapor-tight coating 34 can, for example, be made of polyurethane, preferably a polyether-based polyurethane, and can be glued, cast, or melted directly onto the surface of the wool felt 32. The coating 34 is so flexible that the door leaf 12, 14 can be rolled up and unrolled repeatedly, even at low temperatures.

[0032] To form a door leaf 12, 14 of greater thickness, either a thicker layer of wool felt 32 can be used or, as shown in the example according to Figure 7, two layers of wool felt 36 can be joined, for example, glued, to form a door leaf. The wool felt layers 36 are each provided with a coating 34 on one surface, and the two wool felt layers 36 are glued together on the side that does not have a coating, so that overall a door leaf 12, 14 is again created, which is provided with a coating 34 on its two outer, opposite surfaces, as described above.If a double door leaf 14 is formed, it would be conceivable to form only the door leaf part 16 from two wool felt layers 36, as shown in Figure 7, while the door leaf part 18 is formed in a single layer by continuing one of the wool felt layers 36 or by connecting a thinner wool felt to the door leaf part 16 in the region of the lower end 20.

[0033] To arrange the metal plates 30 inside the wool felt 32 or 36, pockets 40 are cut into the felt material from the side edge 38. The metal plates 30 are inserted into these pockets 40 from the side edge and are glued in the pockets 40, for example, by sealing the side edges 38 with a liquid plastic compound. In the case of the double door leaf 14, such pockets 40 with the metal plates 30 are preferably formed only in the door leaf part 16. In the case of the door leaf 12, 14, which is formed from two wool felt layers 36, the pockets 40 are preferably cut into the wool felt layer 36, which later faces the door frame 2, so that the metal plates 13 are located closer to the door frame 2.

[0034] Figures 9 and 10 show an alternative design of the second magnetic holding elements. In this exemplary embodiment, contact bands 42 made of rubber or an elastic polymer are glued to the door leaf 12, 14 in the contact areas 28. Steel wires 44, which form the second magnetic holding elements, are embedded in the material of the contact bands 42. Like the metal plates 30 in the first exemplary embodiment, these are attracted by the magnetic strips 26 in the lateral frame parts 4, so that the door leaf 12, 14 is held in tight contact with the contact bands 42 against the door frame 2 or its lateral frame parts 4. The steel wires 44 are protected inside the material of the contact band 42, in particular protected against corrosion. List of reference symbols goal frame 4 side frame parts 6 upper frame part 8 Wave 10 Drive motor 12, 14 door leaf 16, 18 door leaf parts 20 bends, deflection 22 upper end 24 barrel weight 26 magnetic strips 28 investment areas 30 metal plates 32 wool felt, wool felt layer 34 Coating 36 wool felt, wool felt layer 38 side edge 40 bags 42 Appendix Volume 44 steel wires A Direction of rotation B Direction of movement

Claims

Claims High-speed door with a flexible door leaf (12; 14), at least one rotatable shaft (8) which is designed to wind up the door leaf (12; 14), and a door frame (2) against which the door leaf (12; 14) bears sealingly with at least one contact area (28) when the high-speed door is closed, characterized in that first magnetic holding elements (26) are arranged in the door frame (2) and second magnetic holding elements (30; 44) are arranged in the contact area (28) in the door leaf (12; 14) such that the door leaf (12; 14) is held magnetically in contact with the door frame (2). High-speed door according to claim 1, characterized in that the first magnetic holding elements are permanent magnets (26) and the second magnetic holding elements are ferromagnetic metal elements (30; 44). High-speed door according to claim 1 or 2, characterized in that the second magnetic holding elements (30; 44) are embedded in the material of the door leaf (12; 14).High-speed door according to one of the preceding claims, characterized in that the door leaf (12; 14) is made of felt material (32; 36), and that the felt material (32; 36) is preferably provided with a vapor-diffusion-tight coating (34) on at least one surface. High-speed door according to claim 4, characterized in that the felt material (32; 36) is adjacent in its interior to at least... at least one side edge (38) has pockets (40) into which the second magnetic holding elements (30) are inserted, wherein the pockets (40) are preferably closed by a seal towards the side edge (38) after the insertion of the second magnetic holding elements (30). High-speed door according to one of the preceding claims, characterized in that the second magnetic holding elements (44) are embedded in a contact element, preferably a contact strip (42), which is fastened to the surface of the door leaf (12; 14) in the at least one contact area (28). High-speed door according to claim 6, characterized in that the at least one contact element (42) is adhesively bonded to the door leaf (12; 14). High-speed door according to one of the preceding claims, characterized in that the second magnetic holding elements are formed by ferromagnetic wires (44) which are embedded in an elastic material, preferably rubber.High-speed door according to one of claims 6 to 8, characterized in that the ferromagnetic wires (44) are embedded in the at least one contact element in the form of a contact strip (42). High-speed door according to one of the preceding claims, characterized in that the door leaf (12; 14) is provided with a vapor-diffusion-tight coating (34) on each of its two opposite surfaces.

1. High-speed door according to one of the preceding claims, characterized in that the door leaf (12; 14) is made of felt material, which is a felt made of natural and / or artificial fibers and preferably a wool felt (32; 36). . High-speed door according to one of the preceding claims, characterized in that the vapor-tight coating (34) of the door leaf (12; 14) is made of a plastic material and preferably polyurethane. . High-speed door according to one of the preceding claims, characterized in that the vapor-tight coating (34) of the door leaf (12; 14) has a flexibility that enables the door leaf (12; 14) to be rolled up, even at temperatures below 0°C and preferably at temperatures below -20°C. . High-speed door according to one of the preceding claims, characterized in that the vapor-tight coating (34) of the door leaf (12; 14) is UV-stable. .High-speed door according to one of the preceding claims, characterized in that the vapor-diffusion-tight coating (34) of the door leaf (12; 14) is glued to the felt material (32; 36) of the door leaf (12; 14) and / or fused to the felt material (32; 36).

6. High-speed door according to one of the preceding claims, characterized in that the side edges (38) of the felt material (32; 36) of the door leaf (12; 14) are sealed, preferably sealed with a plastic material. High-speed door according to one of the preceding claims, characterized in that the door leaf (12; 14) has at least two interconnected layers (36) of felt material, which are preferably glued together. High-speed door according to one of the preceding claims, characterized in that the door leaf (14) is designed as a double door leaf with two parallel and spaced-apart door leaf parts (16, 18) which are connected to one another at their lower ends, preferably in an arcuate deflection (20). High-speed door according to one of claims 1 to 18, characterized in that one of the door leaf parts (18) is connected at its upper end to the at least one rotatable shaft (8) and the other door leaf part (16) is fixed at its upper end (22) or is connected to a second rotatable shaft.High-speed door according to one of claims 18 or 1, characterized in that the two door leaf parts (16, 18) are of different thicknesses.

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