Airbag arrangement for a vehicle occupant restraint system

• US 8,246,073 B2
• Filed: 09/10/2009
• Issued: 08/21/2012
• Est. Priority Date: 03/12/2007
• Status: Expired due to Fees

• Current Assignee: Takata-Petri AG
• Original Assignee: Takata AG (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Glöckler, Oliver, Baumgartner, Peter
• Primary Examiner(s): Dickson, Paul N
• Assistant Examiner(s): Sliteris, Joselynn Y
• Application Number:
  US12/585,300
• Publication Number:
  US 20100045004A1
• Time in Patent Office: 1,076 Days
• Field of Search: 280/728.2, 280/741
• US Class Current: 280/728.2
• 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, comprising:

an airbag folded into an airbag package;

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

a gas generator for inflating the airbag,

wherein a section of the cover forms a receptacle,

wherein at least one section of the gas generator is housed in the receptacle,

wherein the airbag comprises an opening, which forms an inlet to an inflatable area of the airbag,

wherein the gas generator is formed as a tubular gas generator, the tubular gas generator being longer in a direction of a longitudinal axis of the gas generator than in a direction perpendicular to the longitudinal axis of the gas generator,

wherein 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 such that the receptacle projects into the hole of the airbag layer.

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, and wherein the receptacle formed by the cover extends into the area sticking out from the airbag.

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 at an angle 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 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.

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

10. The airbag arrangement as claimed in claim 1, wherein the receptacle is tubular such that the receptacle is longer in a direction of a longitudinal axis of the receptacle than in a direction perpendicular to the longitudinal axis of the receptacle.

11. An airbag arrangement for a vehicle occupant restraint system, comprising:

an airbag folded into an airbag package;

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

a gas generator for inflating the airbag,

wherein a section of the cover forms a receptacle,

wherein at least one section of the gas generator is housed in the receptacle,

wherein the airbag comprises an opening, which forms an inlet to an inflatable area of the airbag,

wherein the gas generator is formed as a tubular gas generator,

wherein the opening has a hollow cylindrical area in which the receptacle is arranged,

wherein the opening of the airbag has an area sticking out from the airbag, and

wherein the receptacle formed by the cover extends into the area sticking out from the airbag.

12. The airbag arrangement as claimed in claim 11, wherein the area sticking out from the airbag has a first section and a second section which extends at an angle to the first section.