Disc brake with ring-shaped pressing element

US5366047A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Erich Beck · Ladenburg, DE
• Manfred Minning · Eßlingen, DE
• Emil Naumann · Reichenbach, DE
• Joseph Wese · Dorfen, DE

Key dates

• Filing date: Dec 7, 1992
• Grant date: Nov 22, 1994
• Expiry date: Dec 7, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2125/06
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In disc brakes, disturbing noises, such as whistling or squealing, occurring during braking operations can be prevented if the brake shoe, to be pressed against a brake disc by a pressure member, for example a hydraulically actuated piston, is taken along in the circumferential direction of the latter as soon as the brake shoe comes into contact with the brake disc, and is laid against bearing faces of a brake anchor plate. Accordingly, the pressure member is provided, on its end face facing the brake shoe, a pressing element which projects beyond the end face, is transversely movable to a limited extent and returns automatically to its initial position again, and which is arranged in the pressure member so as to be axially displaceable counter to a return force which, in the event of mutual contact between the pressing element and brake shoe, is lower than the pressing force of the pressure member.