A vehicle seat includes a seat back, and an airbag that deploys in the seat back. The airbag deploys in the seat back in such a way that, after having deployed, the airbag elastically supports an upper body of an occupant and elastically receives an impact force applied to a back surface of the seat back. After having deployed, the airbag has such a shape that a deployment amount, in a front-back direction, of the airbag near a side of the seat back is greater than that near a center of the seat back.
1. A vehicle seat, comprising:
a seat back; and
an airbag that deploys in the seat back,
wherein the airbag deploys in the seat back in such a way that, after having deployed, the airbag elastically supports an upper body of an occupant and elastically receives an impact force applied to a back surface of the seat back, and
wherein, after having deployed, the airbag has such a shape that a deployment amount, in a front-back direction, of the airbag near a side of the seat back is greater than that near a center of the seat back.
2. The vehicle seat according to claim 1 , wherein, after having deployed, the airbag has such a shape that a deployment amount, in the front-back direction, of the airbag near an outer side of a vehicle is greater than that near an inner side of the vehicle.
3. The vehicle seat according to claim 1 , wherein, after having deployed, the airbag has such a shape that a deployment amount, in the front-back direction, of the airbag near an inner side of a vehicle is greater than that near an outer side of the vehicle.