Housing structure of an airbag

• US 20080007031A1
• Filed: 10/12/2006
• Published: 01/10/2008
• Est. Priority Date: 07/10/2006
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Choi, Hyeong Ho
• Granted Patent: US 7,584,987 B2
• Time in Patent Office: Days
• US Class Current: 280/728.2
• CPC Class Codes: B60R 21/217 Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
• CPC Class Codes: B60R 21/276 with means to vent the inflation fluid source, e.g. in case of overpressure B60R21/30 takes precedence; venting means on inflatable member walls B60R21/239
• CPC Class Codes: B60R 21/30 with means to draw ambient air into the flow line and mix such air with the inflation fluid

Abstract

A housing structure of an airbag includes: an airbag housing body having an airbag therein and vent holes formed therein; a partitioning plate installed to the airbag housing body and rotatable in an inward or an outward direction of the vent hole; a cover plate provided inside a slot hole formed along the width of the airbag housing body, and has a size large enough to be able to cover perforated regions of the vent holes and; a diffuser in which the first end is fixed to an outer end portion of the airbag housing body and extends along the inner surface of the airbag housing body and the second end of the diffuser being connected to the cover plate, thereby allowing gas to be generated in an inflator to push the cover plate forward.

Claims

1. A housing structure of an airbag, comprising:

an airbag housing body in which an airbag is installed and in which a plurality of vent holes are formed longitudinally along the airbag housing body and the vent holes are spaced from each other;

a partitioning plate installed to the airbag housing body inside of the vent hole to be rotatable inward and outward of the vent hole;

a cover plate is disposed inside a slot hole formed along the width of the airbag housing body, and has a size large enough to be able to cover perforated regions of the vent holes; and

a diffuser in which the first end is fixed to an outer end portion of the airbag housing body, and is extended the inner surface of the airbag housing body and the second end of the diffuser being connected to the cover plate, thereby allowing gas generated in an inflator to push the cover plate forward.

2. The housing structure of an airbag of claim 1, wherein the vent hole is formed at an upper surface or a lower surface of the airbag housing body.

3. The housing structure of an airbag of claim 1, wherein the partitioning plate is made of metal or rubber.

4. The housing structure of an airbag of claim 1, wherein the cover plate is configured to be operated by a tether in which the first end is fixed inside the airbag and the second end is fixed to a frontal end portion of the cover plate.