Sectional door

B - Operations – Transporting – 60 – J

Patent

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Details

B60J 5/12 (2006.01) B32B 3/26 (2006.01) B60J 5/06 (2006.01) E06B 9/13 (2006.01)

Patent

CA 2230011

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.

L'invention concerne une porte sectionnelle destinée de préférence à des véhicules commerciaux, qui consiste essentiellement en un élément structural à panneaux stratifiés rigides raccordés les uns aux autres par charnières. Elle est configurée de telle manière que des charnières ou des profils de chant distincts peuvent être insérés les uns dans les autres pour raccorder ces panneaux stratifiés. Les panneaux stratifiés (13) sont faits de bandes de plastique simples ou multicouches ou sont des panneaux constitués de différentes couches de matériau. Les raccords articulés comprennent au moins une bande souple (17) formant partie intégrante des panneaux stratifiés (13) ou d'au moins une couche des panneaux stratifiés (13). Dans une variante privilégiée, l'élément structural (10) à panneaux est en matériau thermoplastique. De plus, il est fabriqué dans un panneau de type sandwich comportant au moins trois couches (11, 12, 13). Sur au moins un côté, l'élément structural (10) à panneaux comporte des dépressions parallèles, qui sont espacées les unes des autres et qui réduisent considérablement l'épaisseur des éléments structuraux, ces zones étant flexibles. L'épaisseur des deux couches extérieures (11, 12) est de loin inférieure à celle de la couche médiane qui forme une âme (13). L'âme (13) est constituée d'un matériau relativement moins dense, comme un matériau en nids d'abeilles, une mousse, un matériau fibreux ou l'équivalent. La porte sectionnelle de la présente invention convient particulièrement pour des véhicules commerciaux et des remorques ainsi que pour des conteneurs.

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