| 摘要 |
A sectional door that is preferably used for commercial vehicles and which essentially consists of a panel-like structural element that is formed from rigid laminated bodies that are hinged to each other is to be so configured that it is possible to dispense with separate hinges or edge profiles that can be inserted into each other in order to connect these laminated bodes. The laminated bodies (13) are made as single or multi-layer plastic strips or as layered bodies consisting of different layers of material. The hinged connections consist of at least one flexible strip (17) that is formed in one piece with the laminated bodies (13) or with at least one layer of the laminated bodies (13). In a preferred embodiment, the panel-like structural element (10) consists of a thermoplastic material. In addition, it is manufactured from a sandwich-type panel that is made up of at least three layers (11, 12, 13). On at least one side, the panel-like structural elements (10) is provided with parallel depressions that are spaced apart and which considerably reduce the thickness of the structural elements, these areas being flexible. The thickness of the two outer layers (11, 12) are considerably less than the thickness of a middle layer that forms a core (13). The core (13) consists of a material that is relatively less dense, such as a honeycomb material, a foam, a fibrous material, or the like. The sectional door according to the present invention is particularly well suited for the bodies of commercial vehicles and trailers, and for containers.
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