| 摘要 |
A device for automatically controlling a headrest, includes a motor, a rotatable gear connected to the motor so as to provide rotating movement, a rack gear movably engaging with the rotatable gear to provide lineal movement, a rotator rotatably connected to the rack gear, a first connection mechanism for connecting the rack gear with the rotator, a second connection mechanism for connecting the rotator with the headrest, and a switch circuit for controlling rotation of the motor, whereby tilting of the headrest is automatically controlled by the switch circuit.
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