Belt retractor

US10118589B2 · kind B2 · utility

Assignee

• Joyson Safety Systems Germany GmbH · DE

Inventors

• Hermann Hasse · Lonsee, DE
• Robert Fleischmann · Neu-Ulm, DE
• Joachim Nuesseler · Langenau, DE
• Peter Baumgartner · Munich, DE
• Thomas Schwer · Illertissen, DE
• Armin Toth · Blaustein, DE
• Dirk Buchlaub · Trier, DE
• Jochen Lang · Ulm, DE
• Thomas Rupp · Blaustein, DE

Key dates

• Filing date: Mar 31, 2016
• Grant date: Nov 6, 2018
• Expiry date: Nov 29, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R22/3413
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a belt retractor for a safety belt, having: a belt reel (100, 200, 300, 400, 500, 600) for winding up the safety belt; a locking base (120, 220, 320, 420, 520, 620) which during normal operation is conjointly rotated with the belt reel and the rotary motion of which upon abrupt belt extraction is locked by means of a locking mechanism; and a belt force limiting installation which upon locking of the locking base permits relative rotation between the belt reel and the locking base.It is provided according to the invention that the belt retractor has a deactivation installation which after a predefined maximum relative rotary angle between the locking base and the belt reel blocks the relative rotation which is permitted between the belt reel and the locking base by the belt force limiting installation and, on account thereof, deactivates the belt force limiting installation.