Arrangement of a bonnet on a vehicle

The vehicle bonnet is attached to the vehicle body through a hinge unit at the back which has a square articulated joint (7) with short and long arms. The articulated joint (7) of the long arm (4) on the body side is attached to an energy storing device (6). One end of a connecting joint (9) is attached to the long arm between the joints on the body side and bonnet side and its other end is connected to an intermediate arm (11). The middle area is connected to the body. The other end of the intermediate arm is attached to a coupling rod (12) which is attached by its other end to the joint of the short arm (5) on the body side whilst the coupling rod is attached in the middle to the body. In the event of collision with a pedestrian the hinge unit is displaced and the bonnet is raised up at the back.