US 11,835,141 B2
Dust cover
Seiichi Moriyama, Gunma (JP)
Assigned to NSK LTD., Tokyo (JP)
Appl. No. 17/596,915
Filed by NSK LTD., Tokyo (JP)
PCT Filed Jun. 18, 2020, PCT No. PCT/JP2020/024038
§ 371(c)(1), (2) Date Dec. 21, 2021,
PCT Pub. No. WO2020/262203, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-117354 (JP), filed on Jun. 25, 2019.
Prior Publication US 2022/0316599 A1, Oct. 6, 2022
Int. Cl. F16J 15/52 (2006.01); B62D 1/16 (2006.01); F16J 3/04 (2006.01)
CPC F16J 15/52 (2013.01) [B62D 1/16 (2013.01); F16J 3/04 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A dust cover comprising:
a bushing mounted on an outer circumferential face of a steering shaft passing through a tubular member of a dash panel;
an annular bellows covering a gap between the tubular member and the bushing; and
a tubular mounting member pressing the bellows against the tubular member, the mounting member having:
a main body extending along a circumferential direction about a central axis of the steering shaft; and
a flange part protruding outward in a radial direction of the steering shaft, the bellows having:
a bushing fitting part being in contact with an outer circumferential face of the bushing;
a first outer rim part being in contact with an outer circumferential face of the main body;
a first flexible part coupling the bushing fitting part and the first outer rim part to each other;
a second outer rim part disposed on an outer circumferential side of the first outer rim part;
a fixing member fixing the first outer rim part or the second outer rim part to the flange part;
a second flexible part coupling the bushing fitting part and the second outer rim part to each other;
a first convex part provided on one of an outer circumferential face of the first outer rim part and an inner circumferential face of the second outer rim part and protruding in a radial direction from the one toward another; and
a first concave part provided on the other and fitted with the first convex part, and
with the first outer rim part or the second outer rim part fixed to the flange part via the fixing member, the first convex part being fixed in an axial direction of the central axis by the first concave part.