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:
Apr. 29, 2003
Filed:
Nov. 21, 2001
Achim Kraus, Buehl, DE;
Stephan Mayer, Karlsruhe, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention is based on a wiper arm ( ) for a windshield wiper comprising a mounting part ( ) and an articulated part ( ) that are connected to each other via a hinged joint ( ) that has a hub ( ) permanently connected with one part ( or ) and open toward the other part ( or ), and an articulated axle ( ) permanently connected with the other part ( or ), wherein one of the ends of a tension spring ( ) is attached to an attachment device ( ) of the articulated part ( ) and the other end is attached to the mounting part ( ), and the hub ( ) and the articulated axle ( ) mutually loaded in the assembled state, and the hinged joint ( ), in a preassembled state of the wiper arm ( ) in a defined transport position, grips a seating surface that is situated on the side of the parts named above opposite to the hub ( ) in relation to the line of force ( ) of the tension spring ( ) and is formed by at least one bearing surface ( ) on the articulated part ( ) and on the mounting part ( ) in each case. It is proposed that the bearing surfaces ( ) are arranged and/or designed in such a fashion that, with a smaller joint angle (&phgr;) beyond the transport position, the articulated axle ( ) moves from its seating surface at the hub ( ) toward the open end ( ) and thereby increases the preload on the tension spring ( ).