Improved friction hinge

E - Fixed Constructions – 05 – D

Patent

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Details

E05D 11/08 (2006.01)

Patent

CA 2149406

There is disclosed a friction hinge assembly that can be inexpensively produced having a shaft and, in the simplest embodiment, one sheet metal part. In the preferred embodiment, the friction band (21) and the bracket (31) are one piece. In order to achieve the necessary alignment between the axis of the friction band and the axis of the shaft (17), the configuration of the mounting hole (23) for the shaft is elongated only along one axis. This provides clearance for necessary manufacturing tolerances without introducing additional backlash. In another embodiment, proper alignment is assured by slotted mounting holes (37) for mounting the friction bands to the bracket.

L'invention concerne un ensemble de charnière à friction qu'on peut fabriquer économiquement et qui possède un arbre et, dans le mode de réalisation le plus simple, une pièce métallique plate. Dans le mode de réalisation préféré, la bande de friction (21) et le support (31) sont de type monobloc. Afin de réaliser l'alignement nécessaire entre l'axe de la bande de friction et l'axe de l'arbre (17), la configuration de l'orifice de montage (23) de l'arbre est allongée uniquement le long d'un axe. Ceci permet de créer un jeu pour les tolérances de fabrication indispensable sans introduire de jeu supplémentaire. Dans un autre mode de réalisation, l'alignement correct s'effectue au moyen d'orifices de montage fendus (37), de manière à fixer les bandes de friction au support.

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