Automatic headrest positioning apparatus for seat of motor vehicles
First Claim
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1. An automatic headrest positioning apparatus, comprising:
- a headrest provided on a seat which can be displaced by seat displacing means, said headrest being displaceable by headrest displacing means;
seat position detecting means for detecting the position of said seat;
eye position detecting means including light beam projecting means for detecting the position of the eye of a sitter on said seat;
memory means for storing seat position data obtained through said seat position detecting means and detected eye position data obtained through said eye position detecting means; and
control means for performing arithmetic operation on selected seat position data and the detected eye position data read out from said memory means to thereby cause said headrest to be displaced to an optimal position by driving the headrest displacing means on the basis of the result of said arithmetic operation.
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Abstract
An apparatus for detecting the position of a seat in a vehicle and position of eye of a sitter on the seat to thereby select an optimal position of a headrest on the basis of the detected position data. A plurality of data representing the seat position and the sitter'"'"'s eye position are stored in a memory means to be read out for allowing a control means to performs arithmetic operation on the data as read out. On the basis of the result of the arithmetic operation, the positions of the headrests for a plurality of sitters can be selectively determined on the basis of the positions of the seat.
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Citations
10 Claims
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1. An automatic headrest positioning apparatus, comprising:
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a headrest provided on a seat which can be displaced by seat displacing means, said headrest being displaceable by headrest displacing means; seat position detecting means for detecting the position of said seat; eye position detecting means including light beam projecting means for detecting the position of the eye of a sitter on said seat; memory means for storing seat position data obtained through said seat position detecting means and detected eye position data obtained through said eye position detecting means; and control means for performing arithmetic operation on selected seat position data and the detected eye position data read out from said memory means to thereby cause said headrest to be displaced to an optimal position by driving the headrest displacing means on the basis of the result of said arithmetic operation. - View Dependent Claims (2, 3, 4, 5)
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6. An automatic headrest positioning apparatus, comprising:
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a headrest provided on a seat which can be displaced by seat displacing means, said headrest being displaceable by headrest displacing means; seat position detecting means for detecting the displacements of a seat cushion in up-down and in forward-rearward directions, and an inclination of a seat back; eye position detecting means including light beam projecting means which project a plurality of different colors of light beam for detecitng the position of the eye of a sitter on said seat; memory means for storing seat position data obtained through said seat position detecting means and detected eye position data obtained through said eye position detecting means; and control means for performing arithmetic operation on the selected seat position data and the detected eye position data read out from said memory means to thereby cause said headrest to be displaced to an optimal position by driving the headrest displacing means on the basis of the result of said arithmetic operation. - View Dependent Claims (7, 8, 9, 10)
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Specification