Disc brake

摘要

A shim plate relatively movably attached with a friction pad in a rotational direction of a disc is disposed between the friction pad and a reaction section of a caliper, a plurality of claw sections formed to extend in a radial direction of the disc at a position deviated in the rotational direction of the disc with respect to a center of pistons are formed at the reaction section, and movement restriction portions that can abut the intermediate claw section disposed at the middle of the claw sections of the reaction section are formed at a surface of the shim plate opposite to the reaction section in the radial direction of the disc.

主权项

1. A disc brake comprising:
a bracket configured to be attached to a vehicle; a pair of friction pads movably supported by the bracket and disposed at both surfaces of a disc; and a caliper movably supported with respect to the bracket in an axial direction of the disc, wherein the caliper comprises:
a cylinder section in which a plurality of pistons configured to press one friction pad of the pair of friction pads are installed in parallel in a rotational direction of the disc,a bridge section extending from the cylinder section to straddle an outer circumference of the disc,a reaction section extending from the bridge section inward in a radial direction of the disc and configured to press the other friction pad of the pair of friction pads, andan arm section extending from the cylinder section in the rotational direction of the disc and having a tip side to which a slide pin guided to the bracket is attached, wherein in that a shim plate attached with the other friction pad to be relatively moved in the rotational direction of the disc is disposed between the other friction pad and the reaction section, wherein three or more claw sections are formed at the reaction section to extend in the radial direction of the disc at a position deviated in the rotational direction of the disc with respect to a center of the plurality of pistons, wherein at least one movement restriction portion that is configured to contact a middle claw section disposed at a middle of the three or more claw sections of the reaction section is formed on a surface of the shim plate opposite to the reaction section along the radial direction of the disc, the movement restriction portion being stood up in a direction separating from the disc, and wherein the at least one movement restriction portion attaches the shim plate to the middle claw section.