AIR BAG MODULE

• US 20090102170A1
• Filed: 02/06/2008
• Published: 04/23/2009
• Est. Priority Date: 10/22/2007
• Status: Active Grant

• Current Assignee: Hyundai Mobis Co., Ltd.
• Original Assignee: Hyundai Mobis Co., Ltd.
• Inventors: LEE, Jung Su, KIM, Gun Woo
• Granted Patent: US 7,731,223 B2
• Time in Patent Office: Days
• US Class Current: 280/741
• 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

Disclosed is an airbag module which can improve working efficiency because it is easy to assemble, reduce weight while maintaining sufficient rigidity, and ensure sufficient safety. The airbag module comprises: a cushion assembly including an airbag cushion; an inflator for supplying gas to the airbag cushion to deploy the airbag cushion; a housing for containing the cushion assembly, and having a through hole for arranging the inflator therethrough; and a cushion support for supporting the cushion assembly, and including through rings for passing the inflator therethrough so as to be supported by the inflator arranged through the through hole.

Claims

1. An airbag module, comprising:

a cushion assembly including an airbag cushion;

an inflator for supplying gas to the airbag cushion to deploy the airbag cushion;

a housing for containing the cushion assembly, and having a through hole for arranging the inflator therethrough; and

a cushion support for supporting the cushion assembly, and including through rings for passing the inflator therethrough so as to be supported by the inflator arranged through the through hole.

2. The airbag module of claim 1, wherein the through rings are formed in the same shape as a cross sectional shape of the inflator so that the inflator may be compressed and fitted to the through rings.

3. The airbag module of claim 1, wherein through ring ribs are formed on the surface of the through rings such that the yield stress thereof may be increased.

4. The airbag module of claim 3, wherein through ring rib grooves are formed on the inner surface of the through hole of the housing to keep the gas ejected from the inflator from being leaked out by the compression of the through ring ribs.

5. The airbag module of claim 1, wherein a gas inlet and outlet is formed on the cushion support such that the gas supplied from the inflator can be introduced into the airbag cushion.

6. The airbag module of claim 1, wherein the cushion assembly includes a cushion cushion rings to be suspended on the cushion support so as to be supported by the cushion support.

7. The airbag module of claim 3, further comprising side caps which are fitted to both opposite ends of the inflator arranged through the through hole such that the inflator may be fixed to the housing.

8. The airbag module of claim 7, wherein the side caps are forcedly fitted to the housing.

9. The airbag module of claim 7, wherein fixing grooves are formed at the ends of the through hole to which the side caps are fitted, and fixing projections are formed on the surfaces of the side caps such that the side caps may be fitted and fixed to the through hole.

10. The airbag module of claim 7, wherein side cap ribs are formed on the surfaces of the side caps in order to increase the yield stress of the side caps.

11. The airbag module of claim 10, wherein side cap rib grooves are formed in order to prevent the gas supplied from the inflator from being leaked out by the compression of the side cap ribs.

12. The airbag module of claim 7, wherein slots are formed on the outer surface of the inflator which is to be covered by the side caps, and slot projections may be formed on the side caps so that the side caps may be fitted to the slots.