Safety belt with integrated lock release

US4920619A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Richard Bender · Achern, DE
• Anton Bretfeld · Fürth, DE

Key dates

• Filing date: Sep 13, 1989
• Grant date: May 1, 1990
• Expiry date: Sep 13, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T24/45466
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A pin of a retracting or ejecting pyrotechnical power element preferably mounted on the side of a belt lock facing away from the engaged belt is connected to a trigger key in such a way that, upon initiation of the charge of the pyrotechnical power element as a result of a threshold of a sensor in the vehicle being exceeded, due to an occurrence to be sensed, i.e. an impact upon collision and, after a required delay, the trigger key is depressed completely--and remains depressed. The required delay between the occurrence and the instant of belt separation can be effected electronically or, quite especially preferably, integrated in the pyrotechnical power element by means of a pyrotechnical transmission path.