| 摘要 |
PCT No. PCT/FR93/01067 Sec. 371 Date Nov. 4, 1993 Sec. 102(e) Date Nov. 4, 1993 PCT Filed Oct. 29, 1993 PCT Pub. No. WO94/12803 PCT Pub. Date Jun. 9, 1994This invention relates to a vehicle disk-brake and spring (40) through which a friction member (10) is attached to a torque-withstanding member (24). A support plate (12) is received via its circumferential ends (16, 18), which is anchored, and slides on the torque-withstanding member (24). At least one circumferential end (18) of the support plate (12) comprises of a rounded surface (22) interacting with the anchor and sliding with the rounded surface (32) defined on the torque-withstanding member (24). One of the rounded surfaces (32) is concave, and the other rounded surface (22) is convex with the radius of curvature of the convex surface (22) being less than the radius of curvature of the concave surface (32). The friction member (10) is received with a predetermined circumferential clearance (B) in the torque-withstanding member (24) so that the friction member (10) may occupy a first and a second extreme circumferential position corresponding to the support plate (12) which is anchored onto the torque-withstanding member (24) via the first circumferential end (16), or a second circumferential end (18) respectively. The spring (40) has an action part (42) which interacts with an opening (36) made in the convex rounded part (18) and a reaction part (44,46) which interacts with edges (60,62) on the concave rounded pan (32). Thus, depending on the direction of the rotation of the disk, the spring (40) stresses the friction member (10) into the first extreme circumferential position and into permanent contact with the rounded surface (32) defined on the torque-withstanding member (24). |
