Seat for motor vehicle, has anti-submarining crossbar extending between lateral flanges of seat frame, where crossbar includes opening for passage of positioning arm for guiding positioning arm between retracted and extended positions

摘要

The seat (1) has a seat frame including lateral flanges (3), and a seat cushion including a front end edge. A positioning mechanism (4) includes a nose (7b) for supporting the front end edge, where the nose is movable relative to the seat frame between a retracted position and an extended position. A positioning arm (6) is integral with the nose. An anti-submarining crossbar (8) extends between the lateral flanges, where the crossbar includes an opening (9) for the passage of the positioning arm for guiding the positioning arm between the retracted and extended positions.