Vehicle seat

Abstract

The object of the invention is to provide a vehicle seat which can improve degree of freedom in the design of the vehicle seat. A vehicle seat with a seat cushion and a seat back includes: right and left side framesconstituting right and left frames of the seat back; a pressure-receiving memberdisposed between the right and left side framesand configured to receive a load from an occupant; and a driving mechanismdisposed at each of right and left sides of the pressure-receiving memberand configured to cause a right end portion or a left end portion of the pressure-receiving memberto move from an initial position to an advanced position that is located frontward of the initial position or to move from the advanced position to the initial position, wherein the driving mechanismincludes a linkage (drive link memberand contact link member) configured to be connected to the pressure-receiving memberand a driving sourceconfigured to actuate the linkage, and wherein the linkage is configured to operate when a load equal to or greater than a predetermined amount is input from the occupant to the pressure-receiving memberto cause the pressure-receiving memberto move to a backward position that is located rearward of the initial position.