Vehicle seat fitted with a hinge mechanism

摘要

A seat whose back is connected to the seat proper by first and second side hinges, each comprising two cheek-plates that can be locked together by toothed slugs under the control of a cam. The first hinge includes a resilient ring having notches in which the corresponding slugs can engage. The two hinges are interconnected by a link mechanism having lost motion so that actuating the cam of the first hinge unlocks the slugs in both hinges and also causes the slugs in the first hinge to disengage from the notches in the resilient ring, while actuating the cam of the second hinge does no more than release the slugs in both hinges while leaving the slugs of the first hinge engaged in their respective notches.