US 12,109,964 B2
Airbag device
Yoshiki Ito, Kanagawa (JP); and Yutaka Nakajima, Kanagawa (JP)
Assigned to Autoliv Development AB, Vargarda (SE)
Appl. No. 18/000,037
Filed by Yoshiki Ito, Kanagawa (JP); Yutaka Nakajima, Kanagawa (JP); and Autoliv Development AB, Vargarda (SE)
PCT Filed Apr. 28, 2021, PCT No. PCT/JP2021/017050
§ 371(c)(1), (2) Date Nov. 28, 2022,
PCT Pub. No. WO2021/241126, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2020-093217 (JP), filed on May 28, 2020.
Prior Publication US 2023/0202419 A1, Jun. 29, 2023
Int. Cl. B60R 21/207 (2006.01); B60R 21/231 (2011.01); B60R 21/237 (2006.01)
CPC B60R 21/207 (2013.01) [B60R 21/23138 (2013.01); B60R 21/237 (2013.01); B60R 2021/23146 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An airbag device, the airbag device comprising:
an airbag that expands and deploys to integrally cover the head and side sections of an occupant seated in a vehicle seat; and
an inflator that supplies gas to the airbag,
wherein the airbag includes:
a head protecting chamber that covers the head of the occupant and side protecting chambers that cover the side sections of the occupant when the airbag is in an expansion completed state where expansion and deployment are completed; and
in a state where the airbag is stowed rolled in a roll shape or folded in a bellows shape, and stowed in a backrest of the vehicle seat from a first side to a second side over a top part, there is an additional folding part extending from the outer periphery of the attachment end side of the stowed airbag to the backrest, where the additional folding part is provided covering at least a portion of the rear side of the stowed airbag that is rolled in a roll shape or folded in a bellows shape,
wherein a free end of the additional folding part is secured directly to a top-most exterior surface of the vehicle seat.