Toyota Jidosha Kabushiki Kaisha

Kanto Auto Works, Ltd.

Satoru Hirai

Osamu Fukawatase

Shinya Suzuki

Kenichi Takenaka

Seiji Yamada

A passenger-seat airbag () includes a pair of left and right airbags (), and a root portion () that is connected to both of the left and right airbags (). When the passenger-seat airbag () is provided in a vehicle, an airbag folded portion () that forms the left and right airbags () is positioned closer to the rear of the vehicle than the root portion () is, and a slack portion () that forms the root portion () is made upright along the airbag folded portion (), and is positioned closer to the front of the vehicle than the airbag folded portion () is. Thus, the slack portion () is expanded and deployed toward a windshield earlier to form 'a wall'. Then, the left and right airbags () are stably deployed toward a passenger seat (toward the rear of the vehicle).

Method of folding passenger-seat airbag

A passenger-seat airbag () includes a left airbag (), a right airbag (), and a root portion (). A strap () is provided in the root portion () that is inflated by gas injected from an inflator () when a passenger-seat airbag device () operates. The strap () connects the base-end portion (B) of the root portion () to a connection root portion (C). Further, the strap () is provided such that a peripheral length (L) on a front side is longer than or equal to a peripheral length (L) on a rear side in a lateral view showing the inflated root portion ().

Passenger seat airbag

A passenger-seat airbag includes a left airbag and a right airbag. A root portion connects a left-airbag root portion and a right-airbag root portion. An accordion-folded portion with relatively small folding widths is formed by accordion-folding both side portions of the root portion, whereby at least a gas-injection hole closest to each of both ends of an inflator in a longitudinal direction among a plurality of the gas-injection holes of the inflator is prevented from being closed by the root portion when the passenger-seat airbag is provided in a vehicle.

Growing community of inventors

Kanagawa-ken, Japan

Satoru Hirai