Sport bucket seat, for a motor vehicle, especially a passenger vehicle

A bucket sports seat for a passenger vehicle, comprising:

• a seat part having a fore portion, an aft portion opposite the fore portion and spaced from the fore portion in a longitudinal direction of the seat;
• a backrest part;
• a transversely extending transition region between the seat part and the backrest part, the transversely extending transition region extending in a transverse direction to the longitudinal direction of the seat;
• at least one dimensionally-rigid support shell having raised side cheeks for support on both sides of an occupant's legs, buttocks, and upper body, at least one of the support shells, in one or more selected regions, including an inner shell and an outer shell;
• a separate support shell being assigned to each of the seat part and the backrest part to accommodate elastic cushion elements, with the support shells of the seat part and the backrest part connected to one another solely via pivot joints adjacent an upper or front delimitation of the side cheeks;
• and
• a locking device provided adjacent the transversely extending transition region, the locking device being located intermediate the pivot joints, the locking device including at least one moveable locking member connected to the backrest part and movable in the transverse direction and an associated fixed locking member connected to the seat part and extending in the longitudinal direction of the seat, the fixed locking member disposed for cooperating with a respective at least one movable locking member;
• the at least one moveable locking member including at least one swivellable, spring-loaded locking hook configured to interact with an actuator and which, in a locking position, lockingly engages with the fixed locking member, such that, when a handle of the actuator is manipulated, the locking hook is arranged to be moveable into a release position, in which the backrest part can be moved into a swung down position.