SEAT CUSHION SHELL UNIT AND SHELL-TYPE SEAT FOR VEHICLE

A seat-cushion shell unit (50) is configured to include a support panel (38) provided to be movable up and down and tiltable to an arbitrary angle below a seat cushion shell (26), and a support pad (42) provided between the seat cushion shell (26) and the support panel (38). A front end part (44) and a rear end part (46) of a support panel (38) are fixed to the seat frame (12), and the seat-cushion shell unit (50) is attached to the seat frame (12). Installation is thereby possible on various seat frames.