| 摘要 |
<p>A side airbag device for a vehicle is configured so as to prevent the presence of a seated occupant's upper arm between the side airbag and the chest and so as to improve the restraining performance of the side airbag. The side airbag (20) of a side airbag device (10) for a vehicle is configured in such a manner that a front bag section (36) and a rear bag section (38) are divided by a longitudinal partition section (32). A front extension section (38A) which is provided to the upper part of the rear bag section (38) and which restrains an occupant's shoulder (S) is separated from the front bag section (36) by an upper partition section (34) extending forward and obliquely upward of a seat back (14) from the upper end of the longitudinal partition section (32). When an inflator (22) is activated, the rear bag section (38) is inflated and expanded early, and gas within the rear bag section (38) is supplied into the front bag section (36) through a connection opening provided in the longitudinal partition section (32). This enables the front bag section (36) to push up an occupant's upper arm (A) and enables the rear bag section (38), which has been inflated and expanded early, to restrain the chest (C), an area behind the stomach (B), and the shoulder (S) early.</p> |
