Side collision airbag device

• US 20090039627A1
• Filed: 05/28/2008
• Published: 02/12/2009
• Est. Priority Date: 08/09/2007
• Status: Abandoned Application

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Yokota, Masatoshi
• Application Number:
  US12/153,921
• Publication Number:
  US 20090039627A1
• Time in Patent Office: Days
• US Class Current: 280/730.200
• CPC Class Codes: B60R 2021/23316 Inner seams, e.g. creating separate compartments or used as tethering means
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members
• 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
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence
• CPC Class Codes: B60R 21/2346 Soft diffusers
• CPC Class Codes: B60R 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid

Abstract

A side collision airbag device includes a side collision airbag that inflates and extends between a side wall portion of a body of a vehicle and an occupant seated on a seat disposed in the body, and an inflator that spouts a gas from a spouting portion. The gas inflates and extends the side collision airbag. A tubular base cloth member is provided so as to cover the spouting portion and is folded in a form of accordion or pleats when the inflator is not activated. A shape holding cloth holds the tubular base cloth member in the vicinity of the spouting portion.

Claims

1. A side collision airbag device comprising:

a side collision airbag to be inflated and extended between a side wall portion of a body of a vehicle and a seat;

an inflator having a spouting portion, said inflator spouting a gas from the spouting portion for inflating and expanding the side collision airbag;

a tubular base cloth member arranged to cover the spouting portion, said base cloth being folded in a form of pleats or a roll when the inflator is not activated; and

a holding member for holding the tubular base cloth member folded in the form of pleats or roll, in a vicinity of the spouting portion.

2. The side collision airbag device according to claim 1, further comprising a tubular sleeve disposed so as to cover a spouting side of the inflator in a longitudinal direction thereof, and provided with a throttle portion for reducing a flow of the gas spouted from the inflator, the tubular base cloth member covering the sleeve.

3. The side collision airbag device according to claim 1, wherein the holding member has a tear portion allowing the tubular base cloth member to extend when the inflator is activated.

4. The side collision airbag device according to claim 1, wherein the tubular base cloth member extends toward the other side of the inflator in the longitudinal direction and has an elongated portion secured by a fixing member for fixing the inflator to the body of the vehicle.

5. The side collision airbag device according to claim 4, wherein the elongated portion is sandwiched between the sleeve and a plate at a position secured by the fixing member, the plate being overlapped on the sleeve.

6. The side collision airbag device according to claim 1, wherein the tubular base cloth member is formed in a substantially tubular shape by stitching opposing side edges of base cloths to each other and is configured in a manner such that the direction of the stitched line diagonally intersects with mesh directions of the base cloth at predetermined angles.

7. A side collision airbag device comprising:

a side collision airbag adapted to inflate and extend between a side wall portion of a body of a vehicle and a seat, the side collision airbag including a plurality of partitioned chambers therein and a connection passage for connecting the plurality of chambers;

an inflator having an elongated shape to spout a gas from one side in a longitudinal direction thereof, the gas inflating and expanding the side collision airbag;

a sleeve arranged to cover the one side of the inflator in the connection passage for connecting the plurality of chambers, said sleeve having a throttle portion for reducing a flow of the gas spouted from the inflator; and

a tubular base cloth member provided to cover the sleeve, and having a projected length from the sleeve at least equal to a diameter of the sleeve when the inflator is activated.

8. The side collision airbag device according to claim 7, wherein the tubular base cloth member extends toward the other side of the inflator in the longitudinal direction and has an elongated portion secured by a fixing member for fixing the inflator to the body of the vehicle.

9. The side collision airbag device according to claim 8, wherein the elongated portion is sandwiched between the sleeve and a plate at a position secured by the fixing member, the plate being overlapped on the sleeve.

10. The side collision airbag device according to claim 7, wherein the tubular base cloth member is formed in a substantially tubular shape by stitching opposing side edges of base cloths to each other and is configured in a manner such that the direction of the stitched line diagonally intersects with mesh directions of the base cloth at predetermined angles.