Airbag apparatus

• US 20060022437A1
• Filed: 07/22/2005
• Published: 02/02/2006
• Est. Priority Date: 07/30/2004
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Japan K.K.
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Matsui, Yoshitaka, Tsujimoto, Kei, Nakazawa, Wataru
• Granted Patent: US 7,431,326 B2
• Time in Patent Office: Days
• US Class Current: 280/728.200
• 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

The positioning of an airbag plate with respect to an inflator is achieved so as to prevent the generation of a rattle that may otherwise be caused by vibrations during vehicle travel. The bottom side of a column-shaped inflator that injects pressurized fluid is supported by a retainer. An opening edge of an airbag body is clamped between an airbag plate and the retainer when the airbag plate, which is located on the upper side of the inflator, is engaged with the retainer. The edge of the bottom opening of the airbag body is clamped between the airbag plate and the inflator. In one embodiment, shoulders, which are provided on the airbag plate, abut both ends of the inflator. In another embodiment, tongue strips, which are provided on the airbag plate, abut both ends of the inflator.

Claims

1. An airbag apparatus comprising:

a retainer that is configured to support a bottom side of an inflator; and

an airbag plate that is configured to be connected to the retainer,

wherein the inflator has two ends and is configured to inject pressurized fluid into an airbag body,

wherein the airbag plate is configured to be positioned on an upper side of the inflator,

wherein, when the retainer and the airbag plate are connected, the airbag plate and the retainer are configured to clamp an edge of a bottom opening of the airbag body, and

wherein the airbag plate is formed with shoulders that are configured to abut both ends of the inflator, to inhibit the formation of vibrations associated with the inflator.

2. The airbag apparatus according to claim 1, wherein each of the shoulders has a substantially tapered-shape.

3. The airbag apparatus according to claim 1, wherein the shoulders are integrally formed with the airbag plate.

4. The airbag apparatus according to claim 1, further comprising:

tongue strips formed on the airbag plate,

wherein each of the tongue strips is shaped like an arrow tip.

5. The airbag apparatus according to claim 4, wherein each of the tongue strips penetrates the airbag body proximate the bottom opening.

6. An airbag apparatus comprising:

a retainer that is configured to support a bottom side of an inflator; and

an airbag plate that is configured to be connected to the retainer,

wherein the inflator has two ends and is configured to inject pressurized fluid into an airbag body,

wherein the airbag plate is configured to be positioned on an upper side of the inflator,

wherein, when the retainer and the airbag plate are connected, the airbag plate and the retainer are configured to clamp an edge of a bottom opening of the airbag body, and

wherein the airbag plate is formed with tongue strips that are configured to abut both ends of the inflator, to inhibit the formation of vibrations associated with the inflator.

7. The airbag apparatus according to claim 6, wherein each of the tongue strips is shaped like an arrow tip.

8. The airbag apparatus according to claim 7, wherein each of the tongue strips penetrates the airbag body proximate the bottom opening.

9. The airbag apparatus according to claim 6, wherein the tongue strips are integrally formed with the airbag plate.

10. An airbag module comprising:

an airbag;

an elongated inflator having two ends and being supported on a bottom side by a retainer; and

an airbag plate;

wherein the airbag is clamped between the airbag plate and the retainer; and

wherein the airbag plate includes tongue shaped strips that are positioned to abut both ends of the inflator to thereby inhibit relative movement between the inflator and the airbag plate.