Dust cover for a steering shaft
AssigneesNsk Ltd., NSK Steering Systems Co., Ltd., Keeper Corporation
InventorsSeiichi Moriyama, Hiroshi Satou, Jun Yamada, Takashi Shiba, Tomohiko Ikenoya, Jun Watanabe
Life of this patent
Estimating the term…
Abstract
A dust cover for a steering shaft includes a bush of low-frictional material, through which a steering shaft penetrates; a plurality of bellows made of rubber, provided in an axial direction of the steering shaft, and arranged between the bush and a panel for sealing the clearance; and an annular seal lip in contact with the outer periphery of the steering shaft.
Claims9
A dust cover for a steering shaft for closing a column hole between a steering shaft penetrating the column hole provided on a panel which separates an engine room and a vehicle compartment, and the panel, comprising:
- a bush made of low frictional material, through which the steering shaft penetrates;
- a main body of dust seal made of rubber, provided with a plurality of bellows in an axial direction of the steering shaft and arranged between the bush and the panel, for sealing a clearance thereof, said main body of dust seal further comprising a tubular reinforcement member integrally formed within a peripheral installation portion;
- an annular seal lip arranged at least on the engine room side of the bush, in contact with an outer peripheral surface of the steering shaft;
- and
- a fixing member for surrounding end portions of the plurality of bellows on the inner periphery side, and tightening the end portions on the inner periphery side to fix the plurality of bellows to the bush.
A dust cover for a steering shaft for closing a column hole between a steering shaft penetrating the column hole provided on a panel which separates an engine room and a vehicle compartment, and the panel, comprising:
- a bush made of low frictional material, through which the steering shaft penetrates;
- a main body of dust seal made of rubber, provided with a plurality of bellows in an axial direction of the steering shaft and arranged between the bush and the panel, for sealing a clearance thereof, said main body of dust seal further comprising a tubular reinforcement member integrally formed within a peripheral installation portion;
- an annular seal lip arranged at least on the engine room side of the bush, in contact with an outer peripheral surface of the steering shaft;
- the bellows having at least one annular projected portion projecting toward either the engine room side or the vehicle compartment side, and the projected portion being formed of two inclined portions which incline in an opposite direction to each other with respect to the bush axis between an end portion on an inner periphery side and an end portion on an outer periphery side;
- and
- one apex portion formed by a curved surface continuously joining the inclined portions.
Dependencies are inferred from the claim text.