Abstract: A ventilation device for a slim vehicular seat configured for easily ensuring an airflow path in the slim seat and of reducing a thickness of the slim seat to a desired extent, may include a blowing duct, which extends from a lower portion of a seat cushion, is connected to the lower end portion of a foam pad to greatly reduce the width of the space between the foam pad and a back board, making it possible to easily manufacture a slim seat in which the overall thickness of a seat back is minimized.

Abstract: A ventilation device for a slim vehicular seat configured for easily ensuring an airflow path in the slim seat and of reducing a thickness of the slim seat to a desired extent, may include a blowing duct, which extends from a lower portion of a seat cushion, is connected to the lower end portion of a foam pad to greatly reduce the width of the space between the foam pad and a back board, making it possible to easily manufacture a slim seat in which the overall thickness of a seat back is minimized.

Abstract: A lumbar support apparatus for a vehicle seat, may include a support frame; a hinge plate mounted on a middle portion of the support frame; an upper end plate mounted on an upper end portion of the support frame; a lower end plate mounted on a lower end portion of the support frame; and a rotary supporting shaft having both side end portions fixed to a seatback frame, and having an anti-rotation bending end portion supported by the rear surface of the hinge plate, wherein the rotary supporting shaft is inserted into a hinge holder formed on the rear surface of the hinge plate for rotating the hinge plate.

Abstract: A lumbar support apparatus for a vehicle seat, may include a support frame; a hinge plate mounted on a middle portion of the support frame; an upper end plate mounted on an upper end portion of the support frame; a lower end plate mounted on a lower end portion of the support frame; and a rotary supporting shaft having both side end portions fixed to a seatback frame, and having an anti-rotation bending end portion supported by the rear surface of the hinge plate, wherein the rotary supporting shaft is inserted into a hinge holder formed on the rear surface of the hinge plate for rotating the hinge plate

Abstract: A fold-and-dive structure for a vehicle seat is provided, which includes a connection member connecting a cushion frame built in a seat cushion and a back frame built in a seat back to each other, a rotating link connecting a front end portion of the cushion frame and a support frame to each other, and a recliner provided on the support frame to which a lower end portion of the back frame is rotatably connected, wherein a guide frame is provided on a front side portion of the connection member, and the cushion frame is slidably coupled to the guide frame to make the seat cushion slide forward.

Abstract: A fold-and-dive structure for a vehicle seat is provided, which includes a connection member connecting a cushion frame built in a seat cushion and a back frame built in a seat back to each other, a rotating link connecting a front end portion of the cushion frame and a support frame to each other, and a recliner provided on the support frame to which a lower end portion of the back frame is rotatably connected, wherein a guide frame is provided on a front side portion of the connection member, and the cushion frame is slidably coupled to the guide frame to make the seat cushion slide forward.

Abstract: An active headrest includes a panel inside a seat frame, a panel link supporting the panel and rotating in response to raising of the panel, and a frame which is raised by the panel. A self locking device of the active headrest includes: a guide cylinder in the seat back frame, defining a receiving indentation therein; a return spring in the receiving indentation; and a locking piston in the receiving indentation, a first end of the locking piston being coupled to the return spring, and a second end of the locking piston being exposed to outside the guide cylinder, wherein the locking piston is kept in the guide cylinder by the panel link at the non-operated position of the active headrest, and pressed outside of the guide cylinder by the return spring to restrain rotation of the panel link at the operated position of the active headrest.

Abstract: An active headrest includes a panel inside a seat frame, a panel link supporting the panel and rotating in response to raising of the panel, and a frame which is raised by the panel. A self locking device of the active headrest includes: a guide cylinder in the seat back frame, defining a receiving indentation therein; a return spring in the receiving indentation; and a locking piston in the receiving indentation, a first end of the locking piston being coupled to the return spring, and a second end of the locking piston being exposed to outside the guide cylinder, wherein the locking piston is kept in the guide cylinder by the panel link at the non-operated position of the active headrest, and pressed outside of the guide cylinder by the return spring to restrain rotation of the panel link at the operated position of the active headrest.