Hydraulisch betätigte Festsattelscheibenbremse für Fahrzeuge

摘要

The invention relates to a vehicle disk brake comprising, in the known manner, a brake caliper housing (1) which spans a brake disk (3). In a cylindrical bore (9) of the brake caliper housing (1) a sliding brake piston (2) is mounted in the known manner. As return device for the brake piston (2) an elastically deformable ring (7) is provided for which engages both a ring groove (5) of the brake piston (2) and a ring groove (6) in the wall of the cylindrical bore (9). The elastically deformable ring (7) is held in the axial direction in one (6) of the two grooves (5, 6) which is axially shorter than the other. During a movement of the corresponding other groove (5) the ring is elastically deformed in a defined manner, which generates a defined restoring force. By optimal adjustment of the different parameters an ABS-like braking action can be obtained without the need for an electronic control.