An embodiment locking apparatus for a seat includes a side frame rotatably coupled to a rear end of a cushion part and having an arc-shaped slot hole disposed thereon along a turning radius of the cushion part, a locking protrusion disposed on the cushion part, fitted into the slot hole, and configured to move along the slot hole in a state in which the cushion part is rotated to be changed to a seating mode or a tip-up mode, and a latch rotatably coupled to the side frame and configured to be locked and fixed by the locking protrusion in a state in which the cushion part is in the seating mode or the tip-up mode.

A vehicle seat may include a center frame including coupling holes formed therein, a back frame connected to the center frame at a first point, the back frame being reclinable around the first point serving as an axis, a sliding link movable along the coupling holes, a seat cushion frame connected to the sliding link at a second point, and a connecting link configured to connect the back frame to the seat cushion frame, and the seat cushion frame being tilted up around an axis extending through the second point.

The present disclosure is directed to a utility vehicle having a pivotable seat connected by a hinge to a fixed platform. The pivotable seat is configured to pivot between a first position and a second position defining a standard seat location and a first wall of a cargo bay, respectively. A seatback is configured to form a second wall of a cargo bay when the pivotable seat is in the second position. First and second opposing side walls are positioned on either side of the pivotable seat. The side walls are configured to form barriers at either side of the cargo bay when the pivotable seat is in the second position.

An embodiment locking apparatus for a seat includes a side frame rotatably coupled to a rear end of a cushion part and having an arc-shaped slot hole disposed thereon along a turning radius of the cushion part, a locking protrusion disposed on the cushion part, fitted into the slot hole, and configured to move along the slot hole in a state in which the cushion part is rotated to be changed to a seating mode or a tip-up mode, and a latch rotatably coupled to the side frame and configured to be locked and fixed by the locking protrusion in a state in which the cushion part is in the seating mode or the tip-up mode.

A vehicle seatback locking device is configured to lock a striker using an upper latch and a lower latch, to lock, using a cam, the lower latch configured to lock the striker, and to prevent the lower latch from being rotated by external force in the unlocking direction. The locking device makes it possible not only to prevent the striker from being unlocked from the lower latch, but also to prevent unexpected movement of a seatback due to unlocking between the striker and the lower latch.