Air-bag and a method of deploying an air-bag

US6722691B1 · kind B1 · utility

Assignee

• Autoliv Development AB · SE

Inventors

• Yngve Haland · Skanör med Falsterbo, SE
• Sture Andersson · Nacka, SE
• Dick Eriksson · Alingsås, SE
• Bengt Pipkorn · Skara, SE
• Jörgen Persson · Umeå, SE

Key dates

• Filing date: Sep 28, 2001
• Grant date: Apr 20, 2004
• Expiry date: Sep 28, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/2612
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An air-bag (8) is mounted in the roof of a motor vehicle to be deployed in front of an occupant (7) of the vehicle. The air-bag is constrained by tear straps (15) within the air-bag to inflate initially as a “curtain” in front of the occupant of the vehicle, that curtain only having a relatively narrow thickness (t). When the tear-straps break, the bag has a more rounded configuration. The bas is releasably retained within a recess (9) which initially houses the bag. When the bag is fully inflated, the bag becomes totally separated from the recess, to prevent the bag forcing the head of the occupant rearwardly as the torso of the occupant moves forwardly during an accident.