Abstract: A vehicle seat of the present invention has: a seat main body that has a seat cushion and a seatback; a concave portion that is provided in at least one of the seat cushion and the seatback, and that is provided at a region supporting a seated vehicle occupant, and that is formed in a shape that is recessed in a direction of moving away from the seated vehicle occupant; and a biometric signal detecting section having an airbag, which is mounted so as to extend over the concave portion and is capable of inflating and contracting, and a pressure sensor, which detects pressure applied to the airbag in a state in which the airbag is inflated.

Abstract: Provided is an air supply device including a tubular member, a pump head, and a movable body. The pump head includes an air intake portion through which air flow into the tubular member and an air delivery portion through which the air flown into the tubular member is delivered to an airbag disposed in at least a seat back in a vehicle seat. The movable body is configured such that the tubular member is expanded and contracted, the air is flown into the tubular member from the air intake portion, and the air flown into the tubular member is delivered from the air delivery portion as a result of a reciprocating movement resulting from energization of a coil portion, the movable body approaching and moving away from the pump head during the reciprocating movement.

Abstract: A vehicle seat of the present invention has: a seat main body that has a seat cushion and a seatback; a concave portion that is provided in at least one of the seat cushion and the seatback, and that is provided at a region supporting a seated vehicle occupant, and that is formed in a shape that is recessed in a direction of moving away from the seated vehicle occupant; and a biometric signal detecting section having an airbag, which is mounted so as to extend over the concave portion and is capable of inflating and contracting, and a pressure sensor, which detects pressure applied to the airbag in a state in which the airbag is inflated.