A track assembly including a track and a support. The support may be configured for selective connection with the track. The support may include a lock plate that may be configured to selectively limit movement of the support relative to the track in at least one of a first direction and a second direction. The support may include an anchor that may be configured to selectively limit movement of the support relative to the track in at least one of the second direction and a third direction. The support may include a cam that may be configured to selectively engage and disengage at least one of the lock plate and the anchor from the track.

A seat assembly for use in an automotive vehicle includes a seat back pivotally coupled to a seat cushion and at least one link pivotally coupled between the seat cushion and a seat base. A detent assembly is rotatably coupled to the seat base, the detent assembly actuatable between a use condition for operatively coupling the at least one link and the detent assembly, and an override condition for decoupling the at least one link and the detent assembly. A linkage motor is operatively engaged with the detent assembly for pivoting the at least one link to move the seat assembly between a plurality of positions. Actuation of the detent assembly from the use condition to the override condition allows for manual pivoting of the at least one link to move the seat assembly between the plurality of positions in situations where the linkage motor is unable to be actuated.

An infant carrier includes a carrying handle having a coupling shell pivotally connected with a coupling portion of a seat body, and a latch assembled in the coupling shell. The carrying handle is adjustable to multiple angular positions, which include a carry position for facilitating transport of the infant carrier with the carrying handle, and a recline position inclined relative to the carry position. The latch can engage with the coupling portion for locking the carrying handle in position, or disengage from the coupling portion for allowing rotation of the carrying handle. A safety mechanism is disposed in an inner cavity defined at least partially by the coupling shell and the coupling portion, and can interact with the latch for forcing the carrying handle to stop in an intermediate safety position during adjustment of the carrying handle from the carry position toward the recline position.