Seat device including a stowable auxiliary seat

摘要

A seat cushion (21) comprises a cushion body portion (21d) including a storage recess (21 c) and a cushion bottom portion (21e) covering the storage recess (21c) so as to selectively open or close it. A supplementary seat (23) comprises a supplementary seat back (23a) which is pivotally supported so as to rotate in the longitudinal direction and a supplementary seat cushion (23b) formed separately from the supplementary seat back (23a). The supplementary seat cushion (23b) is configured so as to selectively take a sitting position, where it is located at the side of the seat cushion, and a stored position, where it is stored in the storage recess (21 c). Accordingly, since only the supplementary seat cushion (23b) is stored in the storage recess (21 c), the deterioration of comfortable ride caused by the high-sitting point can be suppressed. Also, the supplementary seat back (23a) can be used as a armrest or the like.