Floating caliper disc brake with expander springs for the brake shoes

PCT No. PCT/EP93/00141 Sec. 371 Date Sep. 20, 1994 Sec. 102(e) Date Sep. 20, 1994 PCT Filed Jan. 22, 1993 PCT Pub. No. WO93/15331 PCT Pub. Date Aug. 5, 1993A floating caliper disc brake comprises a stationary brake carrier including two carrier arms protruding beyond the outer rim of a brake disc. Disposed on either side of the brake disc are brake shoes that are displaceably supported on the carrier arms and embraced by a floating caliper guided in an axially displaceable manner on the brake carrier. A spring assembly, acting on the brake shoes in the brake releasing direction after braking, creates the clearance between the brake shoes and the brake disc. The spring assembly is provided with at least one expander spring which is non-displaceably secured to a section of the carrier arm located above the outer rim of the brake disc. The expander spring is provided with at least two spring struts which, in the brake releasing direction, are in resilient abutment with the back plates of the brake shoes and thus insure a uniform distribution of the brake clearance among the brake shoes.