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Method and device for controlling headrest

  • US 5,105,132 A
  • Filed: 10/23/1990
  • Issued: 04/14/1992
  • Est. Priority Date: 10/23/1990
  • Status: Expired due to Fees
First Claim
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1. A method for controlling a headrest, in which said headrest is displaceable between a use position where it supports a head of an occupant on a seat and a non-use position where it is moved away from a view field of another occupant on another seat, said method comprising the steps of:

  • detecting an over-load state of a motor which is used for causing the displacement of said headrest;

    discriminating a correct electric signal among other signals in order to drive sad motor in a proper manner;

    effecting an automatic displacement of said headrest to said use position, if said over-load state of said motor is detected during displacement of said headrest to said non-use position, by way of driving said motor in a direction to cause said headrest to move toward said use position; and

    causing said motor to cease its drive, if an over-load state of said motor is detected during displacement of said headrest to said use position, whereby said headrest is immediately stopped at a point where said motor over-load state is detected.

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