Retractor for a seat belt

US7083135B2 · kind B2 · utility

Assignee

• Takata-Petri (Ulm) GmbH · DE

Inventors

• Robert Fleischmann · Neu-Ulm, DE
• Jochen Benz · Ulm, DE
• Oskar Scholler · Vöhringen, DE
• Thomas Grasser · Illerrieden, DE
• Stefan Lambrecht · Unterelchingen, DE

Key dates

• Filing date: Feb 27, 2004
• Grant date: Aug 1, 2006
• Expiry date: Sep 10, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R22/415
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A belt retractor for a seat belt includes a belt reel, an eccentric disc connected to the belt reel, a cam disc driven by the eccentric disc, and a blocking pawl. The blocking pawl, in a blocking position, blocks a toothed ratchet wheel, and, in a release position, leaves the toothed ratchet wheel unaffected. The blocking pawl may be switched from the release position into the blocking position and conversely from the blocking position into the release position with the cam disc. For the belt retractor to be independent of tolerances, provision is made for the cam disc to have an engaging cam for engaging the blocking position of the blocking pawl and a disengaging cam for engaging the release position of the blocking pawl.