US 11,712,985 B2
Air bag and vehicle seat device
Takashi Ogiso, Kariya (JP); Tomoko Kanbara, Kariya (JP); and Satoshi Masuda, Kariya (JP)
Assigned to AISIN CORPORATION, Kariya (JP)
Filed by AISIN CORPORATION, Kariya (JP)
Filed on Mar. 22, 2022, as Appl. No. 17/655,814.
Claims priority of application No. 2021-063614 (JP), filed on Apr. 2, 2021.
Prior Publication US 2022/0314852 A1, Oct. 6, 2022
Int. Cl. B60N 2/66 (2006.01); B60N 2/90 (2018.01); A47C 7/46 (2006.01)
CPC B60N 2/665 (2015.04) [A47C 7/467 (2013.01); B60N 2/914 (2018.02); B60N 2/976 (2018.02)] 6 Claims
OG exemplary drawing
 
1. An air bag comprising:
a bag portion formed by bonding two sheet members together, wherein
the bag portion includes:
an expansion portion which includes an annular joining portion extending in an annular shape, and
a passage portion which includes a pair of parallel linear joining portions and is connected to the expansion portion,
air filled in the bag portion flows through an internal space of the expansion portion surrounded by the annular joining portion and a passage sandwiched between the pair of linear joining portions defining the passage portion, and
at a connection portion between the expansion portion and the passage portion, the pair of linear joining portions extend in parallel, or the pair of linear joining portions extend so as to expand toward a deep side of the passage from an opening position of the passage with respect to the internal space of the expansion portion.