High performance tightener

US7429012B2 · kind B2 · utility

Assignee

• Autoliv Development AB · SE

Inventors

• Kay Löffler · Pinneberg, DE
• Michael Pech · Hamburg, DE
• Martin Schmidt · Windisch, CH
• Thomas Schmidt · Timmendorfer Strand, DE
• Thomas Schneider · Villa Park, US
• Stefan Suhr · Elmshorn, DE
• Stefan Bösch · Revenahe, DE

Key dates

• Filing date: Mar 28, 2003
• Grant date: Sep 30, 2008
• Expiry date: Feb 9, 2024

Classification

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

Abstract

A self stopping seat belt retractor is provided with a belt shaft for winding a seat belt thereonto and unwinding a wound seat belt therefrom and a housing rotatably supporting the belt shaft and having a locking device that includes a locking means for the belt shaft that can be controlled in a vehicle sensitive and/or belt sensitive manner into engagement with a toothed gearing system on that side of the housing. A tightening device operating on the belt shaft includes a drive wheel, which is, prior to the release of the tightening device, secured in a force-transmitting manner on the housing, is connectable upon release of the tightening device with the belt shaft, whereby the drive wheel of the tightening device is connectable via the locking device with the belt shaft for the transmission of force to the belt shaft.