Spot-type disc brake for vehicles

Claim 1

A spot-type disc brake for vehicles, comprising a brake carrier (12) which straddles the ege of a brake disc (10), a pair of brake pads (24,26) arranged at one side each of the brake disc (10) and guided at the brake carrier (12), an actuator (22) having an actuating axis (B) defining a radial center plane (C) together with the axis (A) of the brake disc, a pair of guide bolts (18,20) arranged at the brake carrier (12) at least approximately parallel to the axis (A) of the brake disc at that side of the center plane (C) which is the trailing side based on the direction of rotation (D) of the brake disc (10) during forward travelling, a caliper (16) guided for displacement by the guide bolts (18,20), the actuator (22) acting directly on the one brake pad (24) and by way of the caliper (16) on the other brake pad (26) and the brake carrier (12) comprising effective guide faces (34,36) for the brake pads (24,26) upon braking during forward travelling at the trailing side only, while the caliper (16) comprises support faces (40,41) for the brake pads (24,26) effective upon braking during backward travelling, characterized in that the brake carrier (12) and the caliper (16) are interconnected by an additional sliding connection (46,52) at the side opposite the brake actuator (22), said connection comprising two members which are out of effective load sharing engagement with each other upon braking during forward travelling but which are moved into effective load sharing engagement with each other upon braking during backward travelling to relieve the guide bolts (18,20) at least in part of moments of the caliper (16) in respect of an axis which is normal to the axis (A) of the brake disc and the actuating axis (B).