Tension reducer

US5624084A · kind A · utility

Assignee

• Takata Vehicle Safety Technology GmbH · DE

Inventors

• Robert Kopetzky · Lonsee, DE
• Sabine Dreizler · Stuttgart, DE
• Ulrich Diepold · Ulm, DE
• Matthias Pleyer · Senden, DE

Key dates

• Filing date: Feb 1, 1995
• Grant date: Apr 29, 1997
• Expiry date: Feb 1, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2022/4413
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A spring-driven reeling mechanism for safety belts 17 in motor vehicles has a belt reel 11 which is rotationally fixedly connected to a first draw reel 12 with a spiral-shaped guide groove 15. A flexible draw member 13 is wound into the guide groove 15 and extends to a second draw reel 14 with a spiral-shaped guide groove 18. The two draw reels 12, 14 taper in opposite axial directions. The draw reel 14 is acted on by a spiral spring 16 in a direction of rotation such that the safety belt 17 is wound onto the belt reel 11. The spiral spring 16 is accommodated in a hollow cavity 21 of the second draw reel 14.