Lucas Industries Public Limited Company

Hans-Georg Madzgalla

Ralf Erben

Christian L Schroeter

Frank Madzgalla

Albert Langert

Frank-Wilhelm Madzgalla

On the caliper (10) of a spot-type disc brake a hold-down spring (40) of sheet metal is supported with a supporting region (42) formed thereon near a brake pad (28); from there it extends in cantilever manner beyond the brake disc (18). The hold-down spring (40) comprises two pairs of spring legs (50, 52) which are separated from each other by a first pair of axial slots (60) and in the relaxed state lie at least approximately in a common plane and extend beyond the brake disc (18). A first pair of the spring legs (50) presses against the brake pad (34) remote from the support region (42). A second pair of the spring legs (52) is separated by a second pair of axial slots (64) from a third spring leg (54) in such a manner that the second pair (52) and the third spring leg (54) are joined only at their ends remote from the support region (42) without being bent over. The third spring leg (54) presses with its other end onto the brake pad (28) adjacent the support region (42).

Spot type disc brake including an improved hold down spring

Spot-type disc brake with resetting means

A self-retracting brake pad assembly has a pair of lateral faces each of which having at least a portion supportable at a carrying brake member e.g. a brake carrier. A recess is located close to the middle of each of the two lateral faces. A return spring assembly comprises a pair of guide members each received in one of the recesses and spring arms protrude laterally from one end of each guide member. The spring arms are supportable in the carrying brake member, and elastically deformable into a final position by an extent determining the brake clearance. The guide members are clamped in the respective recess and displaceable in the same only when overcoming frictional resistance greater than the return force of the spring arms in the final position thereof.

Self-retracting brake pad assembly for spot type disc brakes

Growing community of inventors

Koblenz, Germany

Hans-Georg Madzgalla