AIR BAG DEVICE

• US 20070024039A1
• Filed: 07/27/2006
• Published: 02/01/2007
• Est. Priority Date: 07/28/2005
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kai, Takeshi, Tonooka, Daiei
• Granted Patent: US 7,540,533 B2
• Time in Patent Office: Days
• US Class Current: 280/739
• CPC Class Codes: B60R 21/239 characterised by their venting means

Abstract

An air bag device of the present invention includes an bag member formed by a circular front-side cloth and a circular reverse-side cloth which are sewn together at their outer peripheral edge portions. The air bag device is provided with an annular lid member for closing a plurality of gas discharge portions formed in the reverse-side cloth. Therefore, in this air bag device, the bag member can be instantaneously inflated and expanded to effectively restrain the passenger arid also to effectively absorb an impact energy acting on the passenger.

Claims

1. An air bag device comprising:

a bag member comprising;

a front-side cloth; and

a reverse-side cloth, of which an outer peripheral edge is sewn to the front-side cloth; and

an inflator that feeds gas into the bag member to inflate and expand the bag member,

wherein the reverse-side cloth of the bag member comprises;

a gas inlet port that is connected to the inflator;

a plurality of gas discharge ports disposed on the reverse-side cloth so as to surround the gas inlet port; and

an annular lid member that closes the plurality of gas discharge ports.

2. The air bag device according to claim 1, wherein the annular lid member is formed of a cloth, and

an outer peripheral edge portion of the annular lid member is sewn to the reverse-side cloth.

3. The air bag device according to claim 1, wherein the annular lid member is formed of a cloth, and

a part of an outer peripheral edge portion of the annular lid member is sewn to the reverse-side cloth.

4. The air bag device according to claim 1, wherein the lid member is substantially circular annular shape.

5. The air bag device according to claim 1, wherein the lid member is substantially square annular shape.

6. The air bag device according to claim 5, wherein the substantially square annular shaped lid member is adapted to be curved inwardly or concavely.