FLOATING TYPE DISC ROTOR OF DISC BRAKE FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To increase the strength of coupling between a ring for pad slide contact and a rotor hub, to effectively suppress inclination of a ring for pad slide contact, prevent an excess load from being exerted even on a shaft member for coupling, to facilitate manufacture of the ring for pad slide contact and the rotor hub, and to reduce a cost through reduction of the number of parts and the number of assembling processes. ;SOLUTION: A plurality of semicircular recessed parts 2c and 3b are arranged facing each other on the inner peripheral edge 2b of a ring 2 for pad slide contact and the outer peripheral edge 3a of a rotor hub 3 and the semicircular recessed parts 2c and 3b are brought into abutment against each other to form a circular coupling hole 5. Semicylindrical guide bosses 2d and 3c protruded to one side in such a state to be positioned facing each other and surround the outer peripheries of the sides of the semicircular recessed parts 2c and 3b are formed at the ring 2 for pad slide contact and the rotor hub 3, and the coupling hole 5 is extended throughout the overall lengths of the guide bosses 2d and 3c. The shaft part 4b of a shaft member 4 is inserted in the coupling hole 5 and the ring 2 for pad slide contact coupled to the rotor hub 3 movably in the axial direction of an axle and a shaft part 4b is held by the shaft part 4c of the shaft member 4 for coupling in such a state to cover with the long area of the coupling hole 5 being obtained by adding the thicknesses of the ring 2 for pad slide contact and the rotor hub 3 and the lengths of the guide bosses 2d and 3c.;COPYRIGHT: (C)1997,JPO