Intermediate shaft assembly for steering columns

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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Details

F16D 3/64 (2006.01) B62D 1/19 (2006.01) F16D 3/06 (2006.01) F16D 3/38 (2006.01) F16D 3/76 (2006.01)

Patent

CA 2271748

A steering column assembly (20) is provided comprising an outer isolator (34) closed at one end (40) and open at an opposite end (41); at least one tubular resilient member (50) concentrically disposed within and adhered to an inner wall (38) of the outer isolator tube (34); and an inner isolator tube member (60) having one end (64) extending from the open end (41) of the outer isolator tube (34). A telescoping shaft insert assembly (70) is provided having a first end (80) concentrically received within an inner wall (68) of the inner isolator tube (60) and with an opposite end (90) of the telescoping shaft assembly (70) from the open end (41) of the outer isolator tube (34). The tubular resilient member (50) disposed between the outer and inner isolator tubes (34, 60) is preferably made from a polymeric material and absorbs or dampens transient noise and vibration produced by the road and sensed in the steering wheel (24).

L'invention concerne un ensemble colonne de direction (20) comprenant: un conduit isolant extérieur (34) dont l'une (40) des extrémités est fermée et l'autre (41) ouverte; au moins un élément élastique tubulaire (50), placé de manière concentrique à l'intérieur d'une paroi intérieure (38) dudit conduit isolant extérieur (34) de manière à adhérer à celle-ci; et un conduit isolant intérieur (34), dont une extrémité (64) s'étend depuis l'extrémité ouverte (41) dudit conduit isolant extérieur (34). Un ensemble arbre télescopique d'insertion (70) présente une première extrémité (80), logée de manière concentrique à l'intérieur d'une paroi intérieure (68) du conduit isolant intérieur (60), l'extrémité opposée (90) de cet ensemble arbre télescopique (70) s'étendant depuis l'extrémité ouverte (41) dudit conduit isolant intérieur (34). L'élément élastique tubulaire (50) placé entre les conduits isolants extérieur et intérieur (34, 60) et de préférence fabriqué dans un matériau polymère, absorbe ou amortit le son et les vibrations transitoires qui sont produites par la route et se répercutent sur ladite colonne de direction (24).

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