Patent ID: 8424906

Claim:
A vehicle occupant protection apparatus comprising: a side curtain airbag stored folded along a side portion of a roof of a vehicle body; and an inflator for supplying gas to the side curtain airbag so that the side curtain airbag is inflated and deployed in a curtain shape along an inner surface of a vehicle window, the side curtain airbag including: a gas introduction chamber extending in a front-rear direction of the vehicle body along the side portion of the roof, the gas introduction chamber introducing thereinto the gas in the front-rear direction of the vehicle body; and a lower inflation portion inflatable under the gas introduction chamber by the gas flowing from the gas introduction chamber into the lower inflation portion, the gas introduction chamber including a plurality of upper large inflation portions arranged in the front-rear direction of the vehicle body, the plurality of upper large inflation portions are each disposed in a position that at least partially overlaps a position of a different one of a plurality of pillars of the vehicle body in the front-rear direction of the vehicle body, each of the plurality of upper large inflation portions being inflatable in a vehicle width direction by a greater amount than a small inflation portion that is another inflation portion than the upper large inflation portions in the gas introduction chamber.