The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2013
Filed:
Nov. 14, 2008
Herbert Vollert, Vaihingen/Enz, DE;
Bertram Foitzik, Ilsfeld, DE;
Willi Nagel, Remseck/Hochdorf, DE;
Bernd Goetzelmann, Rutesheim, DE;
Dirk Hofmann, Knor-Pod Cvilinem, CZ;
Nguyet-minh Cao, Korntal-Muenchingen, DE;
Herbert Vollert, Vaihingen/Enz, DE;
Chi-Thuan Cao, Korntal-Muenchingen, DE;
Bertram Foitzik, Ilsfeld, DE;
Willi Nagel, Remseck/Hochdorf, DE;
Bernd Goetzelmann, Rutesheim, DE;
Dirk Hofmann, Knor-Pod Cvilinem, CZ;
Robert Bosch GmbH, Stuttgart, DE;
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.