Patent ID: 7073846

Claim:
Safety device ( 1 ) for lifting the bonnet ( 29 ) of a motor vehicle in the event of a collision, comprising a mechanism ( 3 ) for lifting the said bonnet ( 29 ), an actuator ( 16 ) fitted with a pyrotechnic gas generator, the said actuator comprising a piston ( 19 ) capable of moving under the effect of the gases produced by the generator to move the hook ( 4 ) and release the lift mechanism ( 3 ) and a member for latching the said lift mechanism ( 3 ), the said member consisting of a hook ( 4 ) mounted pivotingly and fixedly attached to the said motor vehicle, the said actuator ( 16 ) interacting with the said hook ( 4 ) to unlatch the lift mechanism ( 3 ), characterized in that the lift mechanism ( 3 ) comprises a rotating arm having at one end a rotation shaft ( 11 ) retained by the hook ( 4 ), the said shaft ( 11 ) corresponding to the rotation shaft for the normal opening of the bonnet ( 29 ), and having at its other end two rotation shafts ( 7 , 8 ) for the rotation of the said arm during the operation of the said device.