Airbag for an occupant protection device

US7614648B2 · kind B2 · utility

Assignee

• TAKATA-PETRI AG · DE

Inventors

• Benedikt Heudorfer · Nersingen, DE
• Thomas Sievers · Ulm, DE

Key dates

• Filing date: Jan 30, 2006
• Grant date: Nov 10, 2009
• Expiry date: Apr 12, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/235
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The disclosed airbag is for an occupant protection device, which protects a vehicle occupant in the event of an accident. In order for the airbag to provide a vehicle occupant with a great protective effect, an embodiment may comprise at least one supporting chamber, which gives the airbag mechanical stability in the inflated state, and at least one energy absorption chamber, which is designed to be more gas permeable than the supporting chamber. With such a configurations the energy absorption chamber absorbs more energy than the supporting chamber during the first phase of an accident.