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:
Jul. 25, 2006
Filed:
Jul. 09, 2004
Martin Prokscha, Schwäbisch Gmünd, DE;
Dieter Biller, Alfdorf, DE;
Martin Prokscha, Schwäbisch Gmünd, DE;
Dieter Biller, Alfdorf, DE;
TRW Automotive GmbH, Alfdorf, DE;
Abstract
A belt retractor for a vehicle safety belt comprises a rotatably mounted belt spool, a drive wheel coupled coaxially with the belt spool, an electric motor which can drive the drive wheel at a variable drive force, and an electronic control unit which can control the electric motor. The belt spool is rotatable to a limited extent with respect to the drive wheel and a sensor is provided that on rotation of the belt spool relative to the drive wheel generates a signal which is representative of the belt force acting in the safety belt and is supplied to the electronic control unit.