| 摘要 |
A retainer 14 has a lower mounting flat surface for attaching an inflatable airbag 7 tightly to a housing 12 in which a gas generator 5 is disposed. The housing 12 includes an upper member 10 attached to a lower member 6 and having a gas passage 11 allowing gas flow from the gas generator 5 into the airbag 7, the lower member 6 having an opening oriented towards the airbag. The upper member 10 includes an upper mounting flat surface which is formed on a peripheral portion of the gas passage 11 and is contoured to the lower mounting flat surface of the retainer 14. With this arrangement, the entire circumferential edge portion of the airbag 7 is interposed between the upper mounting flat surface of the upper member 10 and the lower mounting flat surface of the retainer 14 without any clearance, for establishing an air-tight seal between the airbag 7 and the housing 12. <IMAGE> |
