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, 1995
Filed:
Mar. 02, 1994
Werner Decker, Buehl, DE;
Hugo Herrmann, Lauf, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A brush holder for mechanically commutated electric motors has a support plate, a shaft-like guiding container mounted on the support plate for guiding a sliding brush pressed by a spring force against the commutator of an electric motor. The guiding container has side walls extending transverse to the support plate and provided with legs. A pressing spring is formed as a strip-shaped flat spring and has end portions which are oppositely rolled to form rollers abutting against the legs of the guiding container on surfaces of the legs which face the commutator and also have a central portion arranged to load an end surface of the sliding brush facing away from the commutator. The side walls of the guiding container are provided with recesses which are open to an end facing away from the commutator, have a depth extending to the supporting legs and have a width which is greater than a width of the pressing spring, each of the supporting legs at a transition to a side wall of the guiding container being provided with a slot which is open toward a side of the supporting leg facing away from the support plate, has a depth at least corresponding to the width of the pressing spring, and also has a longitudinal side merging into the recess located in a respective one of the side walls of the guiding container.