US Patent 7219773 Disc brake for vehicle

A disc brake for a vehicle has a caliper bracket fixed to a vehicle body, a pair of caliper support arms striding an outer periphery of a disc rotor in a disc axial direction, pad guide grooves formed in the caliper support arms so as to be opposed to each other, friction pads disposed on both sides of the disc rotor, the friction pads having ears projected from both side portions of a back plate thereof, and pad retainers disposed on the pad guide grooves, the ears of the friction pads being movably supported by the pad guide grooves via the pad retainers, wherein pad retainers each has pad returning portions for urging the friction pads away from the disc rotor.