Abstract: An embodiment vehicle seat includes a seatback configured to support an occupant's upper body, the seatback including an upper seatback part and a lower seatback part, wherein the upper seatback part includes a tilting part pivotably hinged onto the lower seatback part so as to be tiltable forward and backward with respect to the lower seatback part as the upper seatback part is pivoted forward and backward about the lower seatback part, and a tilting device configured to tilt the tilting part forward and backward in conjunction with a reclining operation of the seatback, wherein the tilting device is configured to tilt the tilting part forward in conjunction with a backward reclining operation of the seatback.

Abstract: In the present disclosure, a seatback pocket is introduced, which includes a backboard combined with a rear side of a seatback and including a hinge shaft provided at a lower end in left and right width directions; a pocket member having a hinge part formed at a lower end and combined with the hinge shaft through a hinge structure to be rotated based on the hinge shaft to provide a pocket space in a region facing the backboard; and an elastic member connected between both ends of the pocket member and the backboard in a shape blocking sides of the pocket space, and configured to provide an elastic restoring force with respect to a rotation direction of the pocket member.

Abstract: The present disclosure relates to a reclining device for a seat, which can adjust a seatback at various angles through movement of a striker installed in a vehicle body. The reclining device for a seat includes a latch installed on a side of a seatback and configured to be rotated together with the seatback, and a striker module in which the latch is engaged with a striker installed in a vehicle body, where the striker moves in a certain section overlapping a rotation trajectory of the latch in a state where the latch is engaged and reclines the seatback together with the latch.

Abstract: The present disclosure relates to a reclining device for a seat, which can adjust a seatback at various angles through movement of a striker installed in a vehicle body. The reclining device for a seat includes a latch installed on a side of a seatback and configured to be rotated together with the seatback, and a striker module in which the latch is engaged with a striker installed in a vehicle body, where the striker moves in a certain section overlapping a rotation trajectory of the latch in a state where the latch is engaged and reclines the seatback together with the latch.

Abstract: In the present disclosure, a seatback pocket is introduced, which includes a backboard combined with a rear side of a seatback and including a hinge shaft provided at a lower end in left and right width directions; a pocket member having a hinge part formed at a lower end and combined with the hinge shaft through a hinge structure to be rotated based on the hinge shaft to provide a pocket space in a region facing the backboard; and an elastic member connected between both ends of the pocket member and the backboard in a shape blocking sides of the pocket space, and configured to provide an elastic restoring force with respect to a rotation direction of the pocket member.

Abstract: The present disclosure provides a center hinge assembly for a vehicle rear seat, which includes a lower bracket having a first seating groove formed at one end thereof so that a first shaft or a second shaft is inserted into the first seating groove, and a first locking groove formed at the other end thereof, deeper than the first seating groove, so that a bush fastened to the first or second shaft is inserted and locked into the first locking groove, and an upper bracket having a second seating groove formed at one end thereof so that the first or second shaft is inserted into the second seating groove, and a second locking groove formed at the other end thereof, deeper than the second seating groove, so that the bush is inserted and locked into the second locking groove.

Abstract: A slim headrest device may include a fixed guide bracket provided upside a seatback; a moving plate, a first end portion of which is moved forward and rearward by being guided by the fixed guide bracket and a second end portion of which is in a shape bent upward; and a moving guide bracket to which a headrest is mounted, the moving guide bracket being moved upwardly and downwardly by being guided by the second end portion of the moving plate.

Abstract: The present disclosure provides a center hinge assembly for a vehicle rear seat, which includes a lower bracket having a first seating groove formed at one end thereof so that a first shaft or a second shaft is inserted into the first seating groove, and a first locking groove formed at the other end thereof, deeper than the first seating groove, so that a bush fastened to the first or second shaft is inserted and locked into the first locking groove, and an upper bracket having a second seating groove formed at one end thereof so that the first or second shaft is inserted into the second seating groove, and a second locking groove formed at the other end thereof, deeper than the second seating groove, so that the bush is inserted and locked into the second locking groove.

Abstract: A slim headrest device may include a fixed guide bracket provided upside a seatback; a moving plate, a first end portion of which is moved forward and rearward by being guided by the fixed guide bracket and a second end portion of which is in a shape bent upward; and a moving guide bracket to which a headrest is mounted, the moving guide bracket being moved upwardly and downwardly by being guided by the second end portion of the moving plate.

Abstract: A height adjustment apparatus for a vehicle seat may include a pinion gear mounted in a side frame having a front portion and a rear portion are connected to a seat bracket by links; a rack gear engaged with a top end of the pinion gear and coupled with the seat bracket via an hinge, the rack gear moving according to driving of the pinion gear to raise and lower the side frame; and a play adjustment bracket for guiding up and down motion of the moving rack gear by providing repulsive force to a top portion of the rack gear, the play adjustment bracket being fixedly positioned by being fastened with a plurality of support pins provided in the pinion gear and the side frame.

Abstract: A height adjustment apparatus for a vehicle seat may include a pinion gear mounted in a side frame having a front portion and a rear portion are connected to a seat bracket by links; a rack gear engaged with a top end of the pinion gear and coupled with the seat bracket via an hinge, the rack gear moving according to driving of the pinion gear to raise and lower the side frame; and a play adjustment bracket for guiding up and down motion of the moving rack gear by providing repulsive force to a top portion of the rack gear, the play adjustment bracket being fixedly positioned by being fastened with a plurality of support pins provided in the pinion gear and the side frame.

Abstract: A system and method is provided for observing a heart rate of a passenger. The system for observing a heart rate of a passenger includes a plurality of different types of heart rate sensors provided on a seat cushion or a seat back, and a control unit for collecting waveforms of the heart rate sensors for respective sensor types, computing accuracies of the waveforms for respective sensor types at each unit time, selecting a waveform having a highest accuracy at each unit time, and then calculating a heart rate.

Abstract: A headrest pole guide structure may include a main body configured to be fixed to a seat back and disposed inside a seat cover, the main body having an upper surface in contact with a lower surface of the seat cover and a hollow space so that a pole may be selectively inserted into the hollow space, and a head disposed above the main body, wherein the head may be fastened to the main body with the seat cover interposed between the main body and the head.

Abstract: A system and method is provided for observing a heart rate of a passenger. The system for observing a heart rate of a passenger includes a plurality of different types of heart rate sensors provided on a seat cushion or a seat back, and a control unit for collecting waveforms of the heart rate sensors for respective sensor types, computing accuracies of the waveforms for respective sensor types at each unit time, selecting a waveform having a highest accuracy at each unit time, and then calculating a heart rate.

Abstract: A ballistocardiogram (BCG) analysis apparatus, method, and system is provided for utilizing the BCG for a vehicle. A basic pattern is selected when measurement of a BCG is initiated. Data about BCG is measured for a predetermined period of time. Whether the basic pattern is suitable for the measured data is determined by comparing the measured data with the basic pattern. If the basic pattern is suitable for the measured BCG data, continuous data about the BCG is collected. Signal processing is performed based on pattern matching using the continuous data. A biological condition of the examinee is recognized using results of the signal processing. A posture of the examinee is measured, and if the posture of the examinee has changed, a pattern DB is searched, the basic pattern is changed to a suitable pattern, and then signal processing is performed.

Abstract: A walk-in memory apparatus for an automobile seat locks the seat on a body only after the seat moves past a preset reference point when the seat, moved forwards with a seat back folded up by a seat walk-in apparatus, moves backwards with the seat back unfolded. The walk-in memory apparatus causes the entire seat to move forwards along tracks in an unlocked state when the seat back is folded up. The seat includes a track memory unit which, when the seat moves backwards with the seat back unfolded, causes the seat to be unlocked from the track when the stopper bracket is located ahead of a reference stopper and to be locked on the track when the stopper bracket is located behind the reference stopper.