Headrest device
AssigneeAisin Seiki Kabushiki Kaisha
InventorsTakami Terada, Masatoshi Mori, Yoshihiko Nakamura, Masaharu Tanino, Masato Ohchi
Life of this patent
Estimating the term…
Abstract
A headrest device includes a headrest provided over a seatback of a seat, a sliding means for slidably adjusting the seat in back and forth directions, a position-adjusting means for adjusting position of the headrest, and a connecting mechanism connecting the sliding means and the position-adjusting means. The connecting mechanism operates the position-adjusting means in conjunction with operation of the sliding means. The connecting mechanism moves in a first direction when the sliding means moves forward, and the connecting mechanism moves in a second direction when the sliding means moves backward.
Claims11
A headrest device comprising:
- a headrest provided over a seatback of a seat;
- a sliding means for slidably adjusting the seat in back and forth directions;
- a position-adjusting means for adjusting a position of the headrest;
- and
- a connecting mechanism connecting the sliding means and the position-adjusting means, the connecting mechanism operating the position-adjusting means in conjunction with operation of the sliding means;
- wherein
- the connecting mechanism moves in a first direction when the sliding means moves forward, and the connecting mechanism moves in a second direction when the sliding means moves backward;
- the position-adjusting means includes a driving portion operated by the connecting mechanism, and a driven portion moved in conjunction with the headrest;
- and
- transmission of a driving force from the driving portion is selectively inputted into and cut off from the driven portion;
- and further wherein the driving portion includes a pinion gear;
- the driven portion includes a rack gear selectively engaged with the pinion gear;
- and the driving force is cut off by separating the pinion gear from the rack gear.
A headrest device comprising:
- a headrest provided over a seatback of a seat;
- a sliding means for slidably adjusting the seat in back and forth directions;
- a position-adjusting means for adjusting a position of the headrest;
- a connecting mechanism connecting the sliding means and the position-adjusting means, the connecting mechanism operating the position-adjusting means in conjunction with operation of the sliding means;
- wherein the connecting mechanism moves in a first direction when the sliding means moves forward, and the connecting mechanism moves in a second direction when the sliding means moves backward;
- wherein the position-adiusting means includes a driving portion operated by the connecting mechanism, and a driven portion moved in conjunction with the headrest;
- and wherein transmission of a driving force from the driving portion is selectively inputted into and cut off from the driven portion;
- and
- further comprising a pinion gear included in the driving portion;
- a rack gear included in the driven portion, being selectively engaged with the pinion gear;
- and
- recess portions provided on end portions of the rack gear in order to rotate the pinion gear in a disengaged state.
Dependencies are inferred from the claim text.