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Headrest control apparatus for vehicle and method of controlling headrest control apparatus for vehicle

  • US 7,448,677 B2
  • Filed: 01/25/2007
  • Issued: 11/11/2008
  • Est. Priority Date: 01/30/2006
  • Status: Expired due to Fees
First Claim
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1. A headrest control apparatus for a vehicle, comprising:

  • a headrest rear portion supported by a seatback;

    a headrest front portion movable relative to the headrest rear portion between a first position, at which the headrest front portion is in contact with the headrest rear portion, and a second position, at which the headrest front portion is frontward distant from the headrest rear portion;

    a motor-operated driving device for moving the headrest front portion relative to the headrest rear portion between the first position and the second position;

    a head detecting sensor provided at the headrest front portion and outputting a predetermined detection signal when a head of an occupant is proximate to the headrest front portion or when the head of the occupant is in contact with the headrest front portion;

    a head detecting circuit detecting one of a proximity of the head towards, and a contact of the head with, the headrest front portion based upon the detection signal of the head detecting sensor;

    a controlling device controlling the driving device to move the headrest front portion towards the second position when a proximity of an object from a rear of the vehicle is detected and to stop a movement of the headrest front portion towards the second position when the head detecting circuit detects the one of a proximity of the head towards, and a contact of the head with, the headrest front portion, the controlling device operating the head detecting circuit only when the headrest front portion moves towards the second position.

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