Convertible seat structure and the application thereof in particular in a motor vehicle

摘要

The seat structure comprises a base (10), a backrest (20) with a cushion (22), a seat (30) with a cushion (32) which has an upper face (3201) and a lower face (3202) and is divided into a fixed rear section (321) close to the backrest (20) and a front section (322) which is mounted to be movable between a normal adult position and an auxiliary child position by means of an articulation (40). This articulation (40) comprises a linkage (41) arranged in such manner that, in said normal position, the movable front section (322) is in the extension of the fixed rear section (321) and in such manner that, in the auxiliary position, the movable front section (322) is placed above the fixed rear section (321) after a rotation and a turning over upper face-down of the movable front section. A support (50) and a lock (60) maintain the movable front section in the auxiliary position. Application for example to a seat structure for a rear seat of a motor vehicle.