| 摘要 |
PROBLEM TO BE SOLVED: To provide a disc brake device capable of preventing outbreaks of a pad drag phenomenon by accurately returning a piston.SOLUTION: A cylinder part 13 formed in a caliper 12 of the disc brake device houses a seal mechanism 20 in a caliper seal groove 13a. The seal mechanism 20 includes: a seal member 21; an inside slider 22; an outside slider 23; and a returning member 24. The inside slider 22 is disposed on an outer peripheral surface of the piston 16, and strokes, following the piston 16. The outside slider 23 holds the inside slider 22, and slides integrally with the inside slider 22 in the seal groove 13a. The outside slider 23 compresses the returning member 24 by following the piston 16 with the inside slider 22, and the returning member 24 returns the piston 16, which is moved forward, through the outside slider 23 and the inside slider 22 by a restoring force against the compression. |
