Patent attributes
A vehicle seat incorporating a side airbag includes a seat cushion and a seat back, if an impact is detected at that side of the seat back, the inflator is activated, generating high-pressure gas, the gas gushes in the airbag, inflating the airbag, and the airbag so inflated tears up the sewn part of the seat back, which are positioned at the front part of the vehicle wall side of the seat back, and develops to the side and front of the occupant, isolating the occupant from the vehicle wall and protecting the occupant; and the airbag is secured to the inner side of the side frame on the vehicle wall side, an expansion restriction plate is provided on the inner side of the airbag, and the airbag is sandwiched between the side frame on the vehicle wall side and the expansion restriction plate.