Patent ID: 6367595
Filing Date: 2002-04-09
Classification: F16D

Abstract:
A brake comprising a one-piece caliper comprising an inner portion formed with a first cylinder and fastened to a stationary part of a vehicle, an outer portion formed with a second cylinder, and a bridge portion connecting said inner and outer portions, said bridge portion having, in its radially inner surface, an arcuate groove having a cross-section defining an outer corner adjacent said outer portion and an inner corner adjacent said inner portion, a piston received in each of said first and second cylinders, a disk rotor attachable to a wheel of the vehicle and positioned between said pistons with a radially outer peripheral portion of said disk rotor received in said groove, friction pads disposed between said disk rotor and said pistons so as to be movable toward and away from said disk rotor, said disk rotor being opposite to said inner and outer corners, said bridge portion comprising bridge sections provided at both sides of the friction pads in a circumferential direction of the disk rotor, said groove being provided in said bridge sections, said groove with a recess having an arcuate cross-section having a predetermined radius of curvature, said recess being provided at said outer corner of said groove to extend in a direction in which said pistons are moved so as not to protrude radially inwardly beyond inner surfaces of said bridge sections.