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:
Mar. 14, 2006
Filed:
Aug. 19, 2004
James E. Doolittle, Granger, IN (US);
William E. Sherman, Ii, South Bendanger, IN (US);
James E. Doolittle, Granger, IN (US);
William E. Sherman, II, South Bendanger, IN (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A parking brake having first and second brake shoes each of which has a first end that engages an anchor post on a backing plate and a second end that engages an adjuster. An actuator that is located adjacent an anchor post engages a first end and an adjuster engages a second end of webs for the first and second brake shoes. A brake cable that is connected to the actuator provides a force for moving the first and second brake shoes into engagement with a drum to effect a brake application. The adjuster is characterized by the adjuster mechanism including a yieldable member for reducing the space between the second end engagement between the webs to limit braking force to a predetermined maximum. A strut of the adjuster compresses at loads above a predetermined set load to thereby reduces the effective braking diameter, input loads and hence output torque.