Patent ID: 8540060

Claim:
A disk brake comprising: a mounting member that extends over an outer periphery of a disk in its axial direction, the mounting member including a pad guide where a friction pad travels; a caliper that is movably attached on the mounting member and presses the friction pad to the disk; and a return spring that is provided between the friction pad and the mounting member and urges the friction pad into a return direction separating from the disk, wherein the return spring is composed of: a first extended portion where a base end side thereof is fixed to a back plate of the friction pad while a top side thereof extends in a direction separating from the disk; and a second extended portion that is folded from the top side of the first extended portion toward a side of the mounting member, a top of the second extended portion extending up to a position that elastically abuts to the side of the mounting member, and wherein a plate thickness direction of the first extended portion extends along a radial direction of the disk, and the friction pad is provided with an engagement portion that engages with the pad guide, and a top side of the second extended portion abuts to the mounting member at a position that deviates from the engagement portion of the back plate in radial and rotational directions of the disk.