US 12,246,670 B2
Airbag device and passenger protection device
Mitsuyoshi Ohno, Miyoshi (JP); Takeshi Yamamoto, Toki (JP); Toshiki Iwama, Toyota (JP); Yoshito Kusuhara, Ichinomiya (JP); and Tsutomu Ishii, Ichinomiya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota Aichi-ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Sep. 13, 2023, as Appl. No. 18/367,665.
Claims priority of application No. 2022-165755 (JP), filed on Oct. 14, 2022.
Prior Publication US 2024/0123935 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B60R 21/207 (2006.01); B60R 21/00 (2006.01); B60R 21/233 (2006.01); B60R 21/2338 (2011.01); B60R 21/013 (2006.01)
CPC B60R 21/207 (2013.01) [B60R 21/233 (2013.01); B60R 21/2338 (2013.01); B60R 2021/0004 (2013.01); B60R 2021/006 (2013.01); B60R 21/013 (2013.01); B60R 2021/2076 (2013.01); B60R 2021/2078 (2013.01); B60R 2021/23308 (2013.01); B60R 2021/23388 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An airbag device comprising:
an inflator that generates gas at a time of a vehicle collision; and
an airbag that is supplied with the gas generated by the inflator, and that inflates and deploys from a seat rear side of a vehicle seat toward a seat front side via a seat upper side, wherein:
in an inflated and deployed state, the airbag includes:
a front-rear chamber that includes a pair of front-rear extension portions extending in a seat front-rear direction via left and right sides of a head of a passenger seated in the vehicle seat and a coupling portion that connects front end portions of the pair of front-rear extension portions;
an airbag body that is in communication with the pair of front-rear chambers and the coupling portion, and is disposed at a seat front side of the passenger, between the pair of front-rear extension portions and at a rear side of the coupling portion; and
a pair of rear tethers including one-end portions attached to the airbag body or to seat front side portions of the front-rear extension portions, and other-end portions attached to a seatback of the vehicle seat or a vehicle body; and
at a time of restraint of the passenger, the airbag body or the seat front side portions of the front-rear extension portions are pulled by the rear tethers toward a seat obliquely rearward and downward side such that lower faces of the front-rear extension portions press shoulders of the passenger from the seat upper side.