| 摘要 |
A side airbag device for a vehicle includes a gas generating device, a side airbag in which a front and a rear bag portions are defined by a front-rear partition section having a front-rear communication opening, gas supplied from the gas generating device into the rear bag portion is supplied into the front bag portion through the front-rear communication opening to allow the side airbag to be inflated and deployed from an outside portion in a vehicle width direction of a seat back, and the front bag portion is arranged on a vehicle front side of the rear bag portion in an inflated and deployed state, and an extending member provided in the rear bag portion and extended in the inflated and deployed state to restrict inflation of the rear bag portion in a vehicle fore-and-aft direction and enlarges inflation of the rear bag portion in the vehicle width direction. |
