Safety belt apparatus

US6871877B2 · kind B2 · utility

Assignee

• Takata-Petri (Ulm) GmbH · DE

Inventors

• Thomas Herrmann · Neuenstadt am Kocher, DE
• Gerhard Klingauf · Balzheim, DE
• Vadim Ruge · Burgrieden, DE
• Benyamin Slucha · Ulm, DE

Key dates

• Filing date: May 31, 2002
• Grant date: Mar 29, 2005
• Expiry date: Jun 14, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2022/287
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A safety belt apparatus for a vehicle, having a belt reel, a belt buckle, a belt redirection apparatus mounted on the B-post of the vehicle. The apparatus also includes, a belt-force limiter with a torsion bar and a belt tensioner. In the event of an accident, the belt tensioner is triggered, and pretorsioning of the torsion bar is simultaneously effected. The pretorsion is preferably brought about by the forces that arise during belt tensioning. The pretorsion allows for the force limitation to start at an optimum force level with regard to the retention force and the protection of the occupant.