Airbag arrangement for a vehicle occupant restraint system

• US 20100045004A1
• Filed: 09/10/2009
• Published: 02/25/2010
• Est. Priority Date: 03/12/2007
• Status: Active Grant

• Current Assignee: Takata-Petri AG
• Original Assignee: Takata-Petri AG
• Inventors: Baumgartner, Peter, Glöckler, Oliver
• Granted Patent: US 8,246,073 B2
• Time in Patent Office: Days
• US Class Current: 280/728.200
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 takes precedence

Abstract

An airbag arrangement for a vehicle occupant restraint system is provided. The airbag arrangement comprising an airbag folded into an airbag package, a cover that may be evacuated and encloses the airbag package, a gas generator for inflating the airbag, a receptacle formed by a section of the cover enclosing the airbag package and in which at least one section of the gas generator is housed. The airbag comprising an opening, which forms an inlet to an inflatable area of the airbag and in which the receptacle is arranged at least sectionally or into which the receptacle projects. The gas generator is formed as a tubular gas generator. The opening has a hollow cylindrical area in which the receptacle is arranged, or the opening is formed as a hole in an airbag layer which forms a chamber of the airbag.

Claims

1. An airbag arrangement for a vehicle occupant restraint system with

an airbag folded into an airbag package;

a cover that may be evacuated and encloses the airbag package;

a gas generator for inflating the airbag;

a receptacle formed by a section of the cover enclosing the airbag package and in which at least one section of the gas generator is housed, whereby

the airbag comprises an opening, which forms an inlet to an inflatable area of the airbag and in which the receptacle is arranged at least sectionally or into which the receptacle projects, wherein

the gas generator is formed as a tubular gas generator, and the opening has a hollow cylindrical area in which the receptacle is arranged, or the opening is formed as a hole in an airbag layer which forms a chamber of the airbag.

2. The airbag arrangement as claimed in claim 1, wherein the receptacle formed by the cover is arranged in the opening of the airbag in such a manner that the opening is closed by the receptacle.

3. The airbag arrangement as claimed in claim 1, wherein the opening of the airbag has an area sticking out from the airbag in which the receptacle formed by the cover is extended into.

4. The airbag arrangement as claimed in claim 3, wherein the area sticking out from the airbag has a first section and a second section which extends angular to the first section.

5. The airbag arrangement as claimed in claim 1, wherein the cover has a cavity for housing the airbag package.

6. The airbag arrangement as claimed in claim 5, wherein in the cavity the receptacle for the gas generator is formed by turning inward into the cavity a cavity extension branching off from the cavity.

7. The airbag arrangement as claimed in claim 1, wherein the receptacle is also hollow cylindrically formed.

8. The airbag arrangement as claimed in claim 7, wherein the tubular gas generator, the hollow cylindrical area of the opening and the receptacle are coaxially arranged.

20. A vehicle occupant restraint system with an airbag arrangement as claimed in claim 1.

9. An airbag arrangement for a vehicle occupant restraint system with

an airbag folded into an airbag package;

a cover that may be evacuated and encloses the airbag package;

a gas generator for inflating the airbag, whereby

the airbag package has at least one section, which extends along at least a segment of the outer periphery of the gas generator around the gas generator, and

a segment of the cover continues between the gas generator and the section of the airbag package extending around the gas generator, wherein

the gas generator is formed as a tubular gas generator and arranged in a curved recess of the cover.

10. The airbag arrangement as claimed in claim 9, wherein the airbag package is formed in a cuboid shape and the tubular gas generator extends along a longitudinal side of the airbag package.

11. The airbag arrangement as claimed in claim 9, wherein the section of the airbag package extending around the gas generator is placed around the gas generator following the form of the gas generator.

12. The airbag arrangement as claimed in claim 9, wherein the segment of cover blocks an inflow port of the airbag.

13. The airbag arrangement as claimed in claim 9, wherein two sections of the airbag package are placed around the gas generator in opposite direction.

14. The airbag arrangement as claimed in claim 9, wherein the section of the airbag package extending around the gas generator is fixed to the gas generator.

15. The airbag arrangement as claimed in claim 9, wherein the section of the airbag package extending around the gas generator has securing means for fixing the section to the gas generator.

16. An airbag arrangement for a vehicle occupant restraint system with

an airbag folded into an airbag package;

a cover that may be evacuated and encloses the airbag package;

a carrier to which the airbag package is fixed to, whereby

the airbag package has a mounting structure, and

at least one bolt type mounting structure is arranged at the carrier which engages behind the mounting structure of the airbag package, wherein

the airbag package forms a receptacle in which a gas generator for inflating the airbag is arranged.

17. The airbag arrangement as claimed in claim 16, wherein the mounting structure has a retaining element which is arranged in a loop of the airbag.

18. The airbag arrangement as claimed in claim 16, wherein the carrier has at least one guiding structure in which the bolt type mounting element can be guided and shifted for fixing and loosening the airbag package at the carrier.

19. The airbag arrangement as claimed in claim 16, wherein the guiding structure has two rail type elements opposed to each other.