Device for adjusting position of vehicle headrest

A headrest position adjustment apparatus comprising:

• a housing mounted on a front surface portion of a high-back board;
• a headrest mounted on the housing such that the headrest is capable of being slidably moved forward and backward;
• a fixing frame having a guide plate comprising a first slide hole on an upper end portion and a second slide hole on a lower end portion, the fixing frame being mounted inside the housing;
• a first motor mounted on the fixing frame, the first motor having a first lead screw facing forward as an output shaft;
• a fixing guide mounted on the fixing frame, the fixing guide having a pair of first guide pipes facing forward;
• a first slider comprising:
• an arm screw hole into which the first lead screw is inserted such that the first lead screw is capable of being rotated,
• upper guide holes arranged on an upper position on opposite sides of the first slider, and
• lower guide holes arranged on a lower position of the opposite sides of the first slider and into which the first guide pipes are inserted;
• a second slider mounted on the headrest, the second slider having a pair of second guide pipes facing backward such that the second guide pipes are inserted into the upper guide holes;
• and
• a link device connected between the fixing frame and the second slider, the link device being configured to push the second slider forward or to pull the second slider backward.