Drum brake module which can be operated by electric motor

US9915309B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Martin Gädke · Hofheim, DE
• Uwe Bach · Niedernhausen, DE
• Stephan Becker · Marburg, DE
• Volker van Aken · Florstadt, DE
• Holger von Hayn · Bad Vilbel, DE
• Jens Hoffmann · Darmstadt, DE
• Ahmed Sefo · Frankfurt, DE
• Wolfgang Ritter · Düsseldorf, DE

Key dates

• Filing date: Nov 18, 2014
• Grant date: Mar 13, 2018
• Expiry date: Nov 18, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2125/68
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An expansion device for drum brakes, which is floatingly and approximately centrally arranged between two substantially symmetrical brake shoes, the expansion device including at least two gear levers articulated to each other and each supported on a brake shoe, at least one of the gear levers of the expansion lock being coupled to an actuating element of an actuator system such that the brake shoes carry out an even, translationally directed expanding movement, which is converted by a gearing, in the direction of the brake drum. At least one of the gear levers of the spreader lock has a spring element integrated into it that can be elastically reversibly deformed by a brake application force about a defined elasticity ΔS of at least 1 mm in a defined manner.