Motor vehicle seat for reducing vibration transmitted to vehicle occupant, has a suspension sheet with one side fixed to rear of seat frame and other side fixed to connecting rod with toothed wheel for adjusting sheet tension

摘要

The seat (1) includes a rigid frame (2) fixed to the vehicle and a suspension sheet (3) that is fixed on its rear edge to the rear of the seat. The front edge of the sheet has a passage (12) through which a rod (11) passes that is coupled to a connecting rod (9) associated with a toothed wheel (10). The sheet has a stiffness that nonlinearly varies as a function of stretching of the sheet, affected by rotation of the toothed wheel.