Abstract: A vehicle seat position adjustment device is configured to stably perform a tilting operation of a seat cushion by performing an operation of rotating a first tilting link hinged to a gear box in a standing direction of a first tilting link while the gear box is moved rearwards along a lead screw, an operation of pushing up a second tilting link hinged to the first tilting link while the first tilting link is rotated in a standing direction, and an operation of allowing the second tilting link to push up a front end of a seat cushion frame. The vehicle seat position adjustment device may achieve a relaxation comfort posture by tilting the seat cushion and simultaneously reclining a seatback connected to the seat cushion rearwards.

Abstract: A device for adjusting a position of a vehicle seat has a structure in which two or more adjustment devices, such as lead screws for adjusting tilting, are connected to the opposite side portions of a seat cushion frame to allow the lead screws to rotate by two gearboxes connected to one motor, so that a seat cushion is stably tilted by the two or more lead screws and the opposite side portions of the seat cushion frame is stably supported by the two or more lead screws, in order to prevent shaking, vibration, and torsional deformation caused by a gap generated when tilting the seat cushion frame.

Abstract: Provided is a duct docking device for a ventilation seat of a vehicle. The duct docking device enables air to be easily blown to a seatback and a seat cushion with a passenger in a seat using only one blower by enabling a seatback duct mounted at the seatback and a seat cushion duct mounted at the seat cushion to be hermetically docked through a connector duct, etc. at an unfolded position of the seatback in which a passenger can sit, and by enabling the seatback duct mounted at the seatback and the seat cushion duct mounted at the seat cushion to be separated from each other at a folded position of the seatback in consideration of that there is no passenger in the seat.

Abstract: Provided is a duct docking device for a ventilation seat of a vehicle. The duct docking device enables air to be easily blown to a seatback and a seat cushion with a passenger in a seat using only one blower by enabling a seatback duct mounted at the seatback and a seat cushion duct mounted at the seat cushion to be hermetically docked through a connector duct, etc. at an unfolded position of the seatback in which a passenger can sit, and by enabling the seatback duct mounted at the seatback and the seat cushion duct mounted at the seat cushion to be separated from each other at a folded position of the seatback in consideration of that there is no passenger in the seat.