Patent ID: 7712569

Claim:
A device for lifting the front hood ( 20 ) of a motor vehicle in case of collision with a pedestrian, comprising a retaining member ( 10 ) for securing the hood ( 20 ) to a vehicle body ( 14 ), and a pyrotechnic explosive unit ( 16 ) for releasing the retaining member ( 10 ), wherein the energy released by the explosive unit ( 16 ) upon releasing the retaining member ( 10 ) also actuates lift means ( 18 ) for lifting the front hood ( 20 ) into a collision position, wherein the explosive unit ( 16 ) is in a hollow space in the retaining member ( 10 ), wherein the lift means ( 18 ) includes a lift device expandable by means of the propulsion gas of the explosive unit ( 16 ), is connected to the hood and the body and limits and/or guides the lift movement of the hood, and wherein the lift device expandable by means of the propulsion gas of the explosive unit ( 16 ) is a fabric bag, a folded bellows or telescopic pipe expansion unit ( 44 ; 58 ).