A vehicle seat includes a seatback frame including a pair of side members extending vertically along either side thereof and providing a structural framework of a seatback, a plate member positioned behind the seatback frame and including an extension extending in an outboard direction from the side member located on an outboard side of the seatback frame, a mounting member connected to the outboard side member, and an airbag module positioned on a front side of the extension and connected to the outboard side member via the mounting member, a clearance being defined between the airbag module and the extension.

A vehicle includes: a front seat capable of changing a posture between a first posture in which a seating surface of the front seat faces forward and a second posture in which the seating surface of the front seat faces backward; a rear seat disposed behind the front seat, a seating surface of the rear seat facing forward; and a protective device emerging between the front seat and the rear seat when impact force acts on the vehicle or when impact force is predicted to act on the vehicle.

A side airbag device with a base member for an inflator to be easily fixed thereto, and a method for manufacturing same is provided. The side airbag device includes: an airbag; an inflator configured to supply the airbag with gas; a base member configured to accommodate the airbag and the inflator, and to be fixed to a vehicle body; an outer covering member configured to cover at least a front side of the base member to form a front-facing interior surface; and a mounting bracket. The mounting bracket includes an inflator fixing portion to which the inflator is fixed and a base member fixing portion which is located in a position different from a position of the inflator fixing portion and fixed to the base member. The base member includes, at a left or right side portion thereof, a bracket fixing portion to which the mounting bracket is fixed.

A side airbag device capable of preventing interference between a harness and an airbag is provided between a vehicle body and a seat. The side airbag device includes an airbag module an inflatable airbag and an inflator supplying a gas into the airbag, a base member including an airbag storage portion having a concave shape and storing the airbag module and is attached between a vehicle body door and the seat, and a retainer member holding the airbag storage portion from the rear side of the vehicle body. The base member includes a first through hole through which a harness of the inflator is inserted and a flange which is formed in the periphery of the first through hole. The retainer member includes a second through hole through which the harness of the inflator is inserted and which is provided at a position facing the first through hole.

A vehicle seat includes a seatback frame including a pair of side members extending vertically along either side thereof and providing a structural framework of a seatback, a plate member positioned behind the seatback frame and including an extension extending in an outboard direction from the side member located on an outboard side of the seatback frame, a mounting member connected to the outboard side member, and an airbag module positioned on a front side of the extension and connected to the outboard side member via the mounting member, a clearance being defined between the airbag module and the extension.

A seat includes a seat bottom and a seat back. The seat bottom extends in a seat-forward direction from the seat bottom. An airbag is mounted to the seat bottom and is inflatable from the seat bottom to an inflated position. The airbag in the inflated position includes a first portion extending in the seat-forward direction from the seat bottom, a second portion extending from the first portion transverse to the first portion seat-forward of the seat bottom, and a third portion extending from the second portion toward the seat bottom.

A side airbag device capable of preventing interference between a harness and an airbag is provided between a vehicle body and a seat. The side airbag device includes an airbag module an inflatable airbag and an inflator supplying a gas into the airbag, a base member including an airbag storage portion having a concave shape and storing the airbag module and is attached between a vehicle body door and the seat, and a retainer member holding the airbag storage portion from the rear side of the vehicle body. The base member includes a first through hole through which a harness of the inflator is inserted and a flange which is formed in the periphery of the first through hole. The retainer member includes a second through hole through which the harness of the inflator is inserted and which is provided at a position facing the first through hole.

A vehicle seat includes a seatback frame including a pair of side members extending vertically along either side thereof and providing a structural framework of a seatback, a plate member positioned behind the seatback frame and including an extension extending in an outboard direction from the side member located on an outboard side of the seatback frame, a mounting member connected to the outboard side member, and an airbag module positioned on a front side of the extension and connected to the outboard side member via the mounting member, a clearance being defined between the airbag module and the extension.