摘要:
A waist receiving portion, which is provided at a support member, is curved to form a convex shape toward a front side in a seat front and rear direction in side view. Accordingly, when a waist portion of an occupant is pressed against the waist receiving portion, the change of the shape of lumbar vertebrae is suppressed. For this reason, since it is possible to reduce the difference between a timing when a head portion of the occupant is pressed against a headrest and a timing when a neck portion of the occupant is pressed against a neck receiving portion, it is possible to suppress swing of the head portion of the occupant about the neck portion as a fulcrum in the seat front and rear direction. Therefore, a burden to the neck portion of the occupant is reduced.
摘要:
A seat back comprises a support bracket in which a stay of a head rest is inserted, a guide bracket for supporting a rear surface of a vertically intermediate portion of the support bracket on the seat back frame, a head rest tilt mechanism, and a pressure receiving member which moves rearward when pushed by the body of an occupant. The head rest tilt mechanism includes slotted brackets each having a guide hole and slide members which individually movably engage the respective guide holes of the slotted brackets along the longitudinal direction thereof. The head rest tilt mechanism drives the sub-frame so that the head rest body tilts forward while moving upward as the slide members are moved upward along the guide holes when the pressure receiving member is moved rearward.
摘要:
A headrest device comprises a headrest body which includes a headrest rear portion supported with respect to a seatback of a seat on which a passenger of a vehicle sits, and a headrest front portion that is movable within a predetermined range from a fully closed position that is closest to the headrest rear portion to a fully open position that is farthest from the headrest rear portion; a detection unit which detects a running state or an operation state of the vehicle; a prediction unit which predicts a possibility of a rear vehicle collision with the vehicle on the basis of the running state or the operation state of the vehicle detected by detection unit; and a control unit which controls, in a case in which the possibility of the rear vehicle collision is predicted by the prediction unit, movement of a position of the headrest front portion so that a backset becomes smaller than a backset at the time of the prediction, the backset being a horizontal distance between the headrest front portion and a head of the vehicle passenger.
摘要:
A vehicle seat includes a seat body having a seat back, a pair of left and right legs, a headrest coupled to the seat back at above the seat back through the pair of legs, load detecting means provided on the seat back and having a movable part that displaces in a predetermined direction upon undergoing a load from the front of the seat back; a first interacting member mechanically coupled to one leg of the pair and to the movable part of the load detecting means, to move one leg of the pair in conjunction with a displacement of the movable part caused upon undergoing the load, thereby displacing the headrest frontward, and a second interacting member mechanically coupled to the other leg of the pair and to the first interacting member, to move the other leg of the pair in conjunction with a movement of the first interacting member caused upon moving the one leg of the pair, thereby displacing the headrest frontward.
摘要:
A seat back comprises a support bracket in which a stay of a head rest is inserted, a guide bracket for supporting a rear surface of a vertically intermediate portion of the support bracket on the seat back frame, a head rest tilt mechanism, and a pressure receiving member which moves rearward when pushed by the body of an occupant. The head rest tilt mechanism includes slotted brackets each having a guide hole and slide members which individually movably engage the respective guide holes of the slotted brackets along the longitudinal direction thereof. The head rest tilt mechanism drives the sub-frame so that the head rest body tilts forward while moving upward as the slide members are moved upward along the guide holes when the pressure receiving member is moved rearward.
摘要:
When a vehicle is rear-ended and a seated user moves rearward in reaction to the rear-end collision, a load generated by a rearward movement of a lumbar portion of the seated user is transmitted from a pressure plate of operating force generating means to an operating force generating mechanism. Then, a pressure roller of the operating force generating mechanism deflects and pulls inner cables of pulling cable devices, thereby moving both end portions of a headrest frame upward. As a result, the headrest frame is moved upward along with headrest supporting brackets smoothly and reliably, whereby a headrest attached to the headrest supporting brackets with headrest stays arranged between the headrest and the respective headrest supporting brackets is moved in the upward-forward direction, that is, toward the head of the seated user smoothly and reliably.
摘要:
A vehicle seatback including a seatback frame provided with a pair of seatback side frame portions and a seatback upper frame portion that connects together upper end portions of the pair of seatback upper frame portions along the seat width direction, and a support member attached to the seatback frame. The support member is provided with a lower neck bearing portion covering the seatback upper frame portion, and a shoulder bearing portion disposed further towards the front than the seatback upper frame portion in the seat front-rear direction. When a load of a specific value or greater acts on the occupant towards the rear in the seat front-rear direction, the shoulder regions of the occupant are pressed against the shoulder bearing portion, suppressing movement of the occupant towards the rear in the seat front-rear direction.
摘要:
There is provided a headrest apparatus including: a headrest main body provided at a top edge portion of a seatback; a detection section to detect contact between the head of an occupant seated in the seat and the headrest main body; a moving section that moves the headrest main body in the vehicle front-rear direction; and a controller that controls the moving section such that the headrest main body is moved forward until contact between the head of an occupant and the headrest main body is detected by the detection section, and, when contact between the head of an occupant and the headrest main body has been detected by the detection section, controls the moving section to move the headrest main body such that there is a specific amount of back-set separation distance in a horizontal direction between the head of an occupant and the headrest main body.
摘要:
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.
摘要:
There is provided a headrest apparatus including: a headrest main body provided at a top edge portion of a seatback; a detection section to detect contact between the head of an occupant seated in the seat and the headrest main body; a moving section that moves the headrest main body in the vehicle front-rear direction; and a controller that controls the moving section such that the headrest main body is moved forward until contact between the head of an occupant and the headrest main body is detected by the detection section, and, when contact between the head of an occupant and the headrest main body has been detected by the detection section, controls the moving section to move the headrest main body such that there is a specific amount of back-set separation distance in a horizontal direction between the head of an occupant and the headrest main body.