US Patent 7762630 Motor vehicle seat

The invention relates to a motor vehicle seat comprising a base frame for attachment to a motor vehicle and also comprising a seat frame and a backrest frame which are adjustably attached to the base frame and are compulsorily coupled by a synchronisation device in such a way that, during a movement of the backrest frame relative to the base frame, a compulsory pivoting movement of the seat frame takes place. The synchronisation device is designed for a non-proportional pivoting movement of the seat frame during a movement of the backrest frame.