Patent attributes
A vehicle occupant protecting device including: an airbag that is accommodated at an upper portion of a vehicle seat, that receives a supply of gas from an inflator and is inflated and expanded toward a seat front side, and that includes a front inflating portion, which is inflated at a seat front side with respect to a head portion of a vehicle occupant, and a pair of left and right lateral inflating portions, which are connected to the front inflating portion and are inflated at sides of the seat with respect to the head portion, the airbag being structured as an integral bag body that covers the head portion; and reinforcing portions that extend in a seat vertical direction at an interior of a seatback, and that connect an upper portion and a lower portion of a seatback frame that structures a frame of the seatback.