US 11,865,988 B2
Airbag device and method for manufacturing the same
Yuto Kobayashi, Ibaraki (JP); Tsutomu Sakurai, Ibaraki (JP); and Tomofumi Tochigi, Ibaraki (JP)
Assigned to Autoliv Development AB, Vargarda (SE)
Filed by Autoliv Development AB, Vargarda (SE)
Filed on Oct. 18, 2022, as Appl. No. 18/047,509.
Claims priority of application No. 2021-173550 (JP), filed on Oct. 23, 2021.
Prior Publication US 2023/0182673 A1, Jun. 15, 2023
Int. Cl. B60R 21/207 (2006.01); B60R 21/2342 (2011.01)
CPC B60R 21/207 (2013.01) [B60R 21/2342 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An airbag device that is stowed in a vehicle seat, comprising:
an airbag cushion that restrains an occupant by expanding and deploying;
an inflator disposed on the inner side of the vehicle seat frame that supplies expansion gas to the airbag cushion; and
a cover member formed of a ductile material that melts and shrinks under heat and pressure to retain the airbag cushion, wherein
the airbag cushion includes a rear chamber section for stowing the inflator and a front chamber section extending forward from the rear chamber section arranged on the outer side of the seat frame when stowed, and
the cover member is configured to compress and retain the relevant section of the airbag cushion by heating and pressurizing at least a region corresponding to the front chamber section of the airbag cushion.