Automatic headrest for car seat, has electric motor turning left by pressing reversing switch such headrest goes up, and micro-swich cutting electric power when reversing switch is not pressed

摘要

The headrest (2) has a reversing switch pressed by weight of a passenger, when the passenger sits down on a seat (1) of a chair. An electric motor turns left by pressing the reversing switch such the headrest goes up. A micro-swich cuts electric power, when the reversing switch is not pressed, where the reversing switch is not pressed if the passenger is not present. An electric wire rod (3) allows a head in a straight line to move up or down, and a nut (5) holds the wire rod.