Air bag apparatus

• US 20090134607A1
• Filed: 12/09/2008
• Published: 05/28/2009
• Est. Priority Date: 10/10/2006
• Status: Active Grant

• Current Assignee: Toyoda Gosei Go., Ltd.
• Original Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Inventors: Yamamoto, Tadashi, Shigemura, Takashi, Okuhara, Masaaki
• Granted Patent: US 7,699,340 B2
• Time in Patent Office: Days
• US Class Current: 280/728.200
• CPC Class Codes: B60R 21/207 in vehicle seats
• 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

According to the air bag apparatus, for example, a side air bag apparatus 20, in a mode in which a portion on a side of a connector portion 33 of an inflator 30 is exposed from a cylindrical portion of a retainer 50, the inflator 30 is contained in the retainer 50. Further, an exposed portion of the inflator 30, that is, a portion thereof exposed from the cylindrical portion 51 of the retainer 50 is fastened together with an extended portion 52 substantially in a shape of a half cylinder extended from the cylindrical portion 51 of the retainer 50 by a clamp mechanism 60 in a state of being covered by an extraneous portion of a base cloth extended from an opening portion 41 of the air bag 40.

Claims

1. An air bag apparatus in which an inflator is contained in a retainer, and an end of the inflator at which a harness is located is exposed from the retainer, wherein the end of the inflator that is exposed from the retainer is covered by a based end portion of an airbag at an opening of the airbag and is fastened to the retainer by a fastener;

the retainer is provided with an extended portion. which corresponds with the portion of the inflator that is exposed from the retainer, and the extended portion of the retainer is fastened to the inflator by the fastener when the inflator is covered by the air bag; and

the portion of the retainer fastened to the inflator by the fastener is provided with a slit, wherein a portion of the fastener is inserted in to the slit, to facilitate fastening the base cloth of the air bag to the inflator with the fastener.

2. The air bag apparatus according to claim 1, wherein a terminal portion of the cylindrical portion of the retainer is provided with a flange for preventing the inflator from escaping from the retainer, and a front end portion of the extended portion of the retainer is provided with a piece for preventing the inserted inflator from escaping from the retainer.

3. The air bag apparatus according to claim 1, wherein a cylindrical portion of the retainer is formed with a pressing portion for pressing the inflator by being projected in an inner direction of the retainer, so that the inflator is press-fitted to the cylindrical portion of the retainer, and the pressing portion is elastically deformed by the inflator.

4. The air bag apparatus according to claim 1, wherein the fastener comprises a clamp mechanism subjected to calking.

5. An air bag apparatus in which an inflator is contained in a retainer, and an end of the inflator at which a harness is located is exposed from the retainer, wherein the end of the inflator that is exposed from the retainer is covered by a based end portion of an airbag at an opening of the airbag and is fastened to the retainer by a fastener;

the retainer is provided with an extended portion, which corresponds with the portion of the inflator that is exposed from the retainer, and the extended portion of the retainer is fastened to the inflator by the fastener when the inflator is covered by the air bag; and

the portion of the retainer fastened to the inflator by the fastener is provided with a slit, wherein a portion of the airbag is inserted in to the slit, to facilitate fastening the base cloth of the air bag to the inflator with the fastener.

6. The air bag apparatus according to claim 5, wherein a terminal portion of the cylindrical portion of the retainer is provided with a flange for preventing the inflator from escaping from the retainer, and a front end portion of the extended portion of the retainer is provided with a piece for preventing the inserted inflator from escaping from the retainer.

7. The air bag apparatus according to claim 5, wherein a cylindrical portion of the retainer is formed with a pressing portion for pressing the inflator by being projected in an inner direction of the retainer, so that the inflator is press-fitted to the cylindrical portion of the retainer, and the pressing portion is elastically deformed by the inflator.

8. The air bag apparatus according to claim 5, wherein the fastener comprises a clamp mechanism subjected to calking.