Safety belt tensioning device

US3942819A · kind A · utility

Assignee

• Volkswagenwerk AG · DE

Inventors

• Wilfried Schwanz
• Ernst Fiala · Wolfsburg, DE
• Rolf Warnecke · Ulmen, DE
• Peter Buchholz · Gifhorn, DE

Key dates

• Filing date: Dec 19, 1974
• Grant date: Mar 9, 1976
• Expiry date: Dec 19, 1994

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2022/4661
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention concerns an apparatus for tensioning restraining devices, such as safety belts. The tensioning is effected by a piston arranged to move within a cylinder when actuated by a pressure medium. A return stopping device is provided to maintain tension after actuation.