US Patent 7931111 Lift device of active hood system

A lift device of an active hood system is adapted to lift up the rear of a hood for a vehicle. The lift device of the active hood system includes a striker placed on the hood, a latch unit placed in an engine compartment for locking and unlocking the striker, and an elastic member placed between the striker and the latch unit for raising up the hood. The lift device lifts up the hood by a mechanism which employs the elastic force of the elastic member. Accordingly, the lift device greatly reduces the impact applied to a pedestrian during a collision of the vehicle with the pedestrian, and improves the device's security. Moreover, the lift device is locked or unlocked by the striker and the latch unit, thereby making it reusable, easy to handle, and reducing its manufacturing and repair costs.