Wear compensating return spring for floating caliper disc brake

Details Wear compensating return spring for floating caliper disc brake Wear compensating return spring for floating caliper disc brake

1992-05-14

1993-10-12

Graham, Matthew C.

Brakes

Wheel

Axially movable brake element or housing therefor

188205A, F16D 6502

Patent

active

052517276

ABSTRACT:
A floating-caliper disc brake is described of a type having brake shoes (3, 4) which are positioned on either side of a brake disc (2) and with a brake caliper (1) which straddles the brake shoes (3, 4) and the edge of said brake disc (2), which brake caliper is axially slidingly supported on a brake carrier (5). A brake piston is mounted in the brake caliper (10) adjacent one brake shoe (4). A spring element (12) is disposed extending between the brake piston and a facing surface of the brake caliper adjacent the other brake shoe and acts to retract each brake shoe to create a clearance with the brake disc. The spring element is elastically and plastically deformable by an actuating stroke of the brake piston (10), the elastic deformability being limited to an actuating stroke which corresponds to the brake clearance of both brake shoes (3, 4), the plastic deformation compensating brake lining wear.

REFERENCES:
patent: 4658938 (1987-04-01), Thiel et al.
patent: 4809825 (1989-03-01), Oltmanns, Jr. et al.

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