Abstract: In a seat (10), a seat back (14) tilts forward to be superposed on a seat cushion (20) and thereby the seat (10) is stowed. In this stowage operation, an arm (26) and a cushion main frame (22) are moved forward by a back frame (16), rotating a front link (28) forward. The operation reduces the distance in the vertical direction between a position at which the front link (28) is connected to the cushion main frame (22) and a restriction shaft (30), so that the distance in the vertical direction between the cushion main frame (22) and a lower wall of an under cover (32) can be reduced. As a result, the under cover (32) contacts with a vehicle compartment floor surface (12) and a seat cushion body (24) is inserted inside the under cover (32). This allows the thickness of the seat cushion (20) to be reduced at the back side of the cushion main frame (22).

Abstract: In a seat (10), rotating a seat cushion rearward causes the seat cushion to be superposed on the front side of a seat back for stowage. In the stowage of the seat (10), the seat cushion is rotated rearward, moving an interlocking link downward. The connection link (18) is then rotated downward in the seat back, so that a distance in a back-and-forth direction between a back main frame (14) and a receiving member (20) is reduced. This allows the thickness of the seat back (12) to be reduced in a part on the back of the back main frame (14).