Abstract: A folding passenger seat assembly for a motor vehicle comprises a seat cushion and a backrest portion. The backrest portion includes a backrest frame having a first end and a second end each pivotally supported about a folding axis. A first latch selectively locks the first end of the backrest frame in the vertical use position and a second latch selectively locks the second end of the backrest frame in the vertical use position. A remote actuator simultaneously unlocks both the first and second latches so that the backrest frame can be pivoted between use and folded positions. The second latch includes a bell-shaped jam key which is pivoted on a pintle about a latch axis spaced parallel from the folding axis. An abutment seat is fixed relative to the folding axis for engaging the jam key when the backrest frame is locked in the vertical use position.

Abstract: A child restraint seat disposed in a cavity of an adult seat back for restraining a child in a seat. The child restraint seat comprises a child seat portion pivotal between a folded position recessed in the cavity and an unfolded use position against the adult seat portion. A child backrest portion is moveable between a stowed position in the cavity and an outwardly extending inclined position. A first hinge automatically pivots the lower end of the child backrest from the stowed position to the inclined position and a second hinge automatically extends the upper end of the child backrest forward of the cavity in response to the pivotal movement of the child seat portion from the folded position to the unfolded use position. A headrest member is coupled to the child seat portion by a pivot member for automatically pivoting the headrest from a closed position to an open position raised above and aligned with the adult and child backrest portions.