Patent · US Active

Apparatus for protecting the knee region of a vehicle occupant

US8684400B2 · kind B2 · utility

4Cited by

2References

12Claims

0Family size

Assignee

Autoliv Development AB · SE

Inventors

Gregor Picard · Birkenfeld, DE
Thomas Reiter · Dachau, DE
Ingo Berger · Taufkirchen, DE

Key dates

Filing date	Sep 7, 2010
Grant date	Apr 1, 2014
Priority date	—
Expiry date	Sep 7, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R2021/23388
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A knee airbag (100) which is deployed between the vehicle occupants and a vehicle structure (2) and a gas generator (4) for filling the knee airbag (100) with inflating gas, wherein the knee airbag (100) has a base chamber (10) which is filled first with inflating gas, and at least one further upper chamber (20, 30) which receives the inflating gas conducted through the base chamber (10). A flow obstacle (12, 23) for the inflating gas is arranged between the base chamber (10) and the one or more upper chambers (20, 30). The one or more upper chambers (20, 30) is rolled up or collapsed and is secured in the rolled-up or collapsed state, the securing (21, 22) being designed in such a manner that it fails when a predetermined degree of filling of the base chamber (10) is reached.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.