Vehicle Occupant Restraint System

• US 20090127836A1
• Filed: 11/02/2006
• Published: 05/21/2009
• Est. Priority Date: 11/04/2005
• Status: Abandoned Application

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.), Toyota Shatai Kabushiki Kaisha
• Inventors: Nishikawa, Atsushi, Kuroyanagi, Teruji, Sakai, Yasunari, Umeda, Hideki
• Application Number:
  US12/084,321
• Publication Number:
  US 20090127836A1
• Time in Patent Office: Days
• US Class Current: 280/730.200
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/237 characterised by the way they are folded

Abstract

There is provided a vehicle-occupant restraint system in which a rear end portion of a curtain airbag is deployed smoothly. A folded unit of an airbag 1 is mounted along a roof side rail 3, and can be inflated by an inflator 4. A rear end portion 1r of the long and narrow folded unit of the airbag 1 is first folded forward and upward once, and a leading end portion of the folded portion is folded upward and rearward. Consequently, the rear end portion of the airbag 1 is folded in three layers stacked on the upper side thereof.

Claims

1. A vehicle-occupant restraint system comprising:

a folded airbag mounted along an upper peripheral edge of a window on a side face of a vehicle; and

at least one inflator for inflating the airbag,

wherein a vehicle rear end portion of the airbag is folded upward in multiple layers.

2. The vehicle-occupant restraint system according to claim 1, wherein the rear end portion of the folded airbag is folded in three layers stacked vertically.

3. The vehicle-occupant restraint system according to claim 1, wherein the airbag is disposed such that the rear end portion is deployed along a D-pillar.

4. The vehicle-occupant restraint system according to claim 1, wherein the airbag is folded like a bellows and in a zigzag multiple times along front-rear folding lines so as to be shaped into a long and narrow primary folded unit, and a rear end portion of the primary folded unit is folded in multiple layers stacked on the upper side thereof.

5. The vehicle-occupant restraint system according to claim 4, wherein the primary folded unit is tied with a breakable material so as to retain a shape thereof.

6. The vehicle-occupant restraint system according to claim 5, wherein the breakable material is a tape.

7. The vehicle-occupant restraint system according to claim 4, wherein the rear end portion of the primary folded unit is first folded forward and upward once to form a first folded portion, and the first folded portion is folded upward and rearward once to form a second folded portion.

8. The vehicle-occupant restraint system according to claim 1, wherein the portion folded in multiple layers is tied with a breakable material so as to retain a shape thereof.