Patent ID: 7931294

Claim:
A side airbag apparatus provided in a seatback of a vehicle seat, comprising: an airbag fixed in a folded state to a seat frame of the seatback, wherein when inflated and deployed by the pressure of gas, the airbag protrudes further toward the front of a vehicle than the seat frame and enters the space between a body side portion of the vehicle and an occupant seated in the vehicle seat; and a guide member located between the seat frame and the airbag, the guide member guiding the airbag such that the airbag is deployed toward the front of the vehicle when inflated and deployed, wherein the guide member includes: a guide portion that is located inboard of the airbag in the vehicle and arranged along the direction of inflation of the airbag; a flexible portion that is flexed toward the outside of the vehicle when receiving a load from inside the vehicle; and a restriction portion that restricts the guide portion from being flexed toward the interior of the vehicle when receiving a force generated by inflation and deployment of the airbag.