Motor vehicle seat, has quadruple joint formed during transition from use position to non-use position, where seat is transferred from non-use position to another non-use position using quadruple joint

摘要

The seat (1) has lower seat structures (3, 7, 9), and a seat frame (14) for carrying a seat cushion, where the seat is transferred from a sitting use position to a non-use position using a quadruple joint (31). Another quadruple joint is formed during transition from the use position to the non-use position, where the seat is transferred from the non-use position to another non-use position using the quadruple joint. The former non-use position is a flat base position with a forward folded backrest (6) and the seat frame.