Mechanical energy absorbing device for seat of motor vehicle, has deformable device comprising intermediate plate pivotally mounted on support and abutment units, where support unit is fixed to backrest frame of seat

摘要

The device has a support unit (21) fixed to a backrest frame (8) of a seat (1), and an abutment unit (22) serving to support a user seated on the seat, where the support and abutment units are in a flat lightly curved or rectangular plate shape. The abutment unit is moved between retracted and unfolded positions, where the abutment unit is placed near the support unit in the retracted position, and is moved away from the support unit in the unfolded position. A deformable device (23) includes a deformable unit i.e. intermediate plate, pivotally mounted on the support and abutment units. An independent claim is also included for a motor vehicle seat comprising a base.