Belt tensioner for a seatbelt system

US7887095B2 · kind B2 · utility

Assignee

• TRW AUTOMOTIVE GMBH · DE

Inventors

• Wilfried Bieg · Mutlangen, DE
• Michael Vogeltanz · Winnenden, DE
• Wolf-Dieter Honl · Mutlangen, DE
• Thomas Modinger · Alfdorf, DE
• Tanja Rau · Schwäbisch Gmünd, DE

Key dates

• Filing date: Dec 12, 2006
• Grant date: Feb 15, 2011
• Expiry date: Feb 13, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2022/4642
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A belt tensioner for a safety belt system includes a pinion (16) rotatably mounted in a housing (12), a drive unit (26), and a toothed rack (18) whose toothing (20) is directly engaged or enters into direct engagement with the pinion (16) and which can be driven by means of the drive unit (26). The toothed rack (18) has the shape of a circular arc and moves on a circular path (K) upon activation of the drive unit (26).