US Patent 9708010 Vehicle pop-up hood device

In a vehicle pop-up hood device, an actuator is coupled to a swinging arm so as to be relatively movable in a vehicle upward direction, so when the actuator pushes up a hinge arm to a pushed-up position, the actuator moves from the pushed-up position to a raised position because of vibration that occurs in a hood. Furthermore, in the raised position, an engagement piece of the actuator engages with a coupling shaft unit of the swinging arm so that the actuator is retained in the raised position. The amplitude of the hood at this time becomes about two times the push-up amount of the actuator. Because of this, the push-up amount of the actuator becomes smaller compared to a case assuming that the actuator pushes up the hinge arm to the raised position, so the amplitude of the vibration of the hood can be reduced.