Coupling for torque transfer from a propellant-operated rotary drive, on a belt shaft of a seat belt retractor for tensioning a seat belt

US5749536A · kind A · utility

Assignee

• TRW Occupant Restraint Systems GmbH & Co. KG · DE

Inventors

• Martin Specht · Feldafing, DE
• Walter Krauss · Starnberg, DE

Key dates

• Filing date: Dec 10, 1996
• Grant date: May 12, 1998
• Expiry date: Dec 10, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2022/468
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A coupling for torque transfer from a drive operated by a propellant to a belt shaft 3 of a seat belt retractor for tensioning a seat belt includes a coupling element 2 maintained in the resting position in the uncoupled condition. The coupling element is supported by two different components 4, 5 with the aid of a carrier 1, a force having engaging effect being exerted by the carrier on the coupling element 2 due to the movement of the one component relative to the other.