Patent · US Active

Electromechanical friction brake

US8448757B2 · kind B2 · utility

3Cited by

5References

18Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Herbert Vollert · Lambach, DE
Chi-Thuan Cao · Ditzingen, DE
Bertram Foitzik · Ilsfeld, DE
Willi Nagel · Biberach an der Riß, DE
Bernd Goetzelmann · Heubach, DE
Dirk Hofmann · Regensburg, DE

Key dates

Filing date	Nov 14, 2008
Grant date	May 28, 2013
Priority date	—
Expiry date	Aug 13, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2125/585
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to an electromechanical friction brake, for example in the form of a disc brake having an electromechanical actuation device. The electric motor of the actuation device presses a frictional brake lining against a brake disc by means of a reduction gearbox and a ball ramp mechanism. The actuation device is supported by a spring washer that is pretensioned so strongly that when the disc brake is released it acts on a segment with a falling spring characteristic; that is, a spring force exerted by the spring washer on the frictional brake lining increases with increasing tension of the disc brake.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.