Headrest device, method of adjusting headrest position, and vehicle seat
First Claim
1. A headrest device comprising:
- a headrest main body that is provided so as to be moveable in a vehicle longitudinal direction, at an upper end portion of a seat back of a seat in which a passenger sits;
a pressure/flexure detecting section that is provided at a vehicle front side of the seat back, and that detects at least one of pressure that is applied to the seat back from a back portion of a passenger seated in the seat, or flexure of the seat back;
a headrest moving section that moves in the headrest main body in the vehicle longitudinal direction; and
a control section that estimates a current back-set which is a distance between a head portion of a passenger and the headrest main body in a horizontal direction, the estimated current back-set corresponding to at least one of pressure or flexure detected by the pressure/flexure detecting section on the basis of a stored relationship between back-set-value and the at least one of pressure or flexure, and controls the headrest moving section to move the headrest main body such that the back-set becomes a predetermined amount.
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Accused Products
Abstract
There is provided a headrest device including: a headrest main body that is provided at an upper end portion of a seat back of a seat in which a passenger sits; a pressure/flexure detecting section that is provided at a vehicle front side of the seat back; a headrest moving section; and a control section that estimates a current back-set, that is a distance between a head portion of a passenger and the headrest main body in a horizontal direction, on the basis of at least one of pressure and flexure detected by the pressure/flexure detecting section and a predetermined relationship between back-set and the at least one of pressure and flexure, and controls the headrest moving section to move the headrest main body such that the back-set becomes a predetermined amount.
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Citations
11 Claims
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1. A headrest device comprising:
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a headrest main body that is provided so as to be moveable in a vehicle longitudinal direction, at an upper end portion of a seat back of a seat in which a passenger sits; a pressure/flexure detecting section that is provided at a vehicle front side of the seat back, and that detects at least one of pressure that is applied to the seat back from a back portion of a passenger seated in the seat, or flexure of the seat back; a headrest moving section that moves in the headrest main body in the vehicle longitudinal direction; and a control section that estimates a current back-set which is a distance between a head portion of a passenger and the headrest main body in a horizontal direction, the estimated current back-set corresponding to at least one of pressure or flexure detected by the pressure/flexure detecting section on the basis of a stored relationship between back-set-value and the at least one of pressure or flexure, and controls the headrest moving section to move the headrest main body such that the back-set becomes a predetermined amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
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10. A method of adjusting headrest position comprising:
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by a pressure/flexure detecting section that is provided at a vehicle front side of a seat back of a seat in which a passenger sits, detecting at least one of pressure applied to the seat back from a back portion of a passenger seated in the seat, or flexure of the seat back; estimating a current back-set which is a distance between a head portion of a passenger and the headrest main body in a horizontal direction, the estimated current back-set corresponding to at least one of pressure or flexure detected by the pressure/flexure detecting section on the basis of a stored relationship between back-set value and the at least one of pressure or flexure; and by a moving section, moving the headrest main body, that is provided at an upper end portion of the seat back so as to be moveable in a vehicle longitudinal direction, such that the back-set becomes a predetermined amount.
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Specification