Toyoda Gosei Co., Ltd.

Koh Tajima

Yasushi Okada

Yuji Kuriyama

Michihisa Asaoka

Junichi Asanuma

Tatsuo Hirano

The airbag device for front passenger's seat is mounted on the dashboard in front of the front passenger's seat. The airbag device for front passenger's seat includes an airbag to be inflated with the inflation gas, and an inflator for feeding the airbag with the inflation gas of pyro- and long mass flow type. The gas permeability rate of the airbag is 1.0 l/cm/min or under at 20 kPa air pressure, and its weight is 230 g/mor under. This airbag device for front passenger's seat prevents the gas leakage, expands and inflates the airbag properly, and constitutes to the weight reduction.

Airbag device for front passenger's seat

A passenger's seat airbag device comprises an airbag including a passenger's side wall portion and a peripheral wall portion. The passenger's side wall portion is arranged generally in the vertical direction when the airbag is completely inflated. The peripheral wall portion is formed to converge, when the airbag is completely inflated, generally into a conical shape from the outer peripheral edge of the passenger's side wall portion forward of the vehicle. The airbag is so constructed that the gas inlet port for an open face generally in the horizontal direction is arranged in front of the lower side of the peripheral wall portion by mounting the gas inlet port peripheral wall on a case. The airbag is housed in a case by folding it horizontally and vertically after preliminarily folded. In the airbag preliminarily folded, the portion near the upper edge in the passenger's side wall portion is arranged at a position to confront the gas inlet port. In the preliminarily folded airbag, moreover, the passenger's side wall portion is flatly overlaid on the lower side of the peripheral wall portion.

Airbag device for passenger's seats

In an air bag device, a folded air bag is accommodated in a condition that the air bag is enclosed by a sheet for preventing the air bag unfolded. The sheet has a regulation wall portion which covers an upper surface of the air bag on the side from which the air bag projects at the time of expansion. The regulation wall portion is provided with a breakable portion which can be ruptured by being pressed by the air bag at the time of expansion of the air bag. Further, the breakable portion is provided so as to be ruptured from one edge side (left edge side) of the circumferential edge sides of the regulation wall portion to the right edge side through the vicinity of the center.

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Aichi-ken, Japan

Koh Tajima