| 摘要 |
An airbag device is formed of a retainer, an outer bag having a gas inlet, an inner bag located in the outer bag, a module cover fixed to the retainer for covering the outer bag, and an inflator attached around the opening of the retainer. A periphery of the gas inlet is disposed around an opening of the retainer. The inflator includes a toroidal main body having a front side portion with a gas outlet and a rear side portion, a first flange extending from an outer periphery of the main body and fixed to the retainer, a second flange extending from an inner periphery of the main body to which the inner bag is fixed, and an air vent hole for providing a communication between the front side portion and the rear side portion. The gas from the inflator is supplied between the inner and outer bags.
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