Side airbag, side airbag apparatus, and motor vehicle seat

• US 20070284858A1
• Filed: 06/01/2007
• Published: 12/13/2007
• Est. Priority Date: 06/12/2006
• Status: Abandoned Application

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Nakahara, Shingo, Nishimura, Tomotoshi
• Application Number:
  US11/806,550
• Publication Number:
  US 20070284858A1
• Time in Patent Office: Days
• US Class Current: 280/729
• CPC Class Codes: B60R 2021/23316 Inner seams, e.g. creating separate compartments or used as tethering means
• 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 21/233 comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other B60R21/232 takes precedence
• CPC Class Codes: B60R 21/237 characterised by the way they are folded
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid

Abstract

A side airbag is inflated and deployed in a space between a side wall portion of a vehicle body and an occupant seated on a seat disposed inside the vehicle body. The side airbag has a bag outer edge portion at a tip end side of an inflating direction having a concave. The concave is formed such that an interference of the bag outer edge portion with an elbow portion of the occupant is reduced in inflation and deployment.

Claims

1. A side airbag to be inflated and deployed in a space between a side wall portion of a vehicle body and an occupant seated on a seat disposed inside the vehicle body, comprising:

an airbag body forming the side airbag, and

a bag outer edge portion at a tip end side of an inflating direction, said bag outer edge portion having a concave such that an interference of the bag outer edge portion with an elbow portion of the occupant is reduced in inflation and deployment.

2. The side airbag according to claim 1, wherein the concave portion is formed at a middle, in a vertical direction, of the outer edge portion adapted to correspond to the elbow portion of the occupant in a condition of being inflated and deployed.

3. The side airbag according to claim 2, wherein said airbag body has a shape when folded such that a base end side, opposite to the tip end side, in the inflating direction is folded into an accordion shape and the tip end side is folded into a roll-shape.

4. The side airbag according to claim 2, wherein the airbag body has an inside partitioned into at least two chambers.

5. The side airbag according to claim 4, wherein the airbag body has a first stitching portion defining the inside of the airbag portion, and a second stitching portion having an oblique portion extending obliquely upwardly from the first stitching portion at the tip end side and a horizontal portion extending from the oblique portion to form the two chambers.

6. The side airbag according to claim 5, wherein the airbag body has a space between an end of the horizontal portion and a part of the first stitching portion opposite thereto for receiving an inflator therein.

7. The side airbag according to claim 6, wherein said at least two chambers include a first chamber extending laterally from the base end side to the tip end side and occupying more that half of the tip end side including the concave, and a second chamber extending downwardly and then forwardly to the tip end side to be located at a lower side of the first chamber

8. A side airbag apparatus, comprising:

the side airbag according to claim 1; and

an inflator for supplying a pressurized fluid for inflating and deploying the side airbag.

9. A motor vehicle seat comprising:

the side airbag according to claim 1; and

an inflator for supplying gas for inflating and deploying the side airbag.