Patent ID: 8292020

Claim:
An automatic moving apparatus for a pre-crash headrest, comprising: a collision prediction sensor provided on a rear of a vehicle to predict a rear-end collision; a control unit comparing a value measured by the collision prediction sensor and input to the control unit, with a reference value stored in the control unit, and outputting a control signal when it is determined that the value measured by the collision prediction sensor is higher than the reference value; and a headrest moving unit moving a headrest unit toward a passenger's head before the headrest unit comes into contact with the passenger's head when the control signal is input from the control unit to the headrest moving unit, and comprising: a stay rod connected at an upper end thereof to the headrest unit, both sides of the stay rod being placed in a vertical direction; tilting device tilting the stay rod forwards or backwards relative to a seatback in response to the control signal of the control unit, thus making the headrest unit come closer to the passenger's head; and vertical moving device moving the stay rod in a vertical direction in response to the control signal of the control unit so that an uppermost end of the headrest unit is not lower than the passenger's head.