The disclosure in the present specification relates to provision of a seat cushion extension device which can slide a seat cushion through a single spring, which has a simple structure, and which has a high assembly efficiency and a low weight. According to an embodiment of the disclosure in the present specification, a seat cushion extension device comprises: a base comprising first and second rack gears formed to face each other; a cushion portion formed on the upper portion of the base to be able to move forward/backward; a locking gear portion which is coupled to a shaft extending from the cushion portion to the base, and which comprises a first gear formed to engage with the first and second rack gears; and a manipulation portion which is coupled to the cushion portion to be able to move forward/backward between the cushion portion and the first gear, and which has a protruding portion formed on the bottom surface thereof, wherein, when the manipulation portion is moved backward such that the protruding portion lowers the first gear, the first gear is disconnected from the second rack gear, and the cushion portion is switched such that the same can slide.

    La présente invention concerne un dispositif d'extension de coussin de siège permettant de faire coulisser un coussin de siège par l'intermédiaire d'un seul ressort, présentant une structure simple, et qui a un rendement d'assemblage élevé et un poids faible. Selon un mode de réalisation de la présente invention, un dispositif d'extension de coussin de siège comprend : une base comprenant des premier et second engrenages à crémaillère conçus de sorte à se faire face ; une partie coussin formée sur la partie supérieure de la base pour pouvoir se déplacer vers l'avant/vers l'arrière ; une partie engrenage de verrouillage qui est accouplée à un arbre s'étendant à partir de la partie coussin vers la base, et qui comprend un premier engrenage conçu pour venir en prise avec les premier et second engrenages à crémaillère ; et une partie de manipulation qui est accouplée à la partie coussin de sorte à pouvoir se déplacer vers l'avant/vers l'arrière entre la partie coussin et le premier engrenage, et qui comporte une partie saillante formée sur sa surface inférieure, le premier engrenage étant séparé du second engrenage à crémaillère lorsque la partie de manipulation est déplacée vers l'arrière de sorte que la partie en saillie abaisse le premier engrenage, et la partie coussin est commutée de sorte à pouvoir coulisser.

    본 명세서에 개시된 내용은 단일의 스프링을 통해 시트쿠션의 슬라이딩 이동이 가능하고 구조가 단순하여 높은 조립효율성 및 낮은 중량을 가지는 시트쿠션 익스텐션 장치의 제공에 관한 것이다. 본 명세서에 개시된 내용의 일 실시예에 따르면, 시트쿠션 익스텐션 장치는 서로 마주하도록 형성되는 제1 및 제2 랙기어들을 포함하는 베이스, 상기 베이스의 상부에 전후방으로 이동이 가능하도록 형성되는 쿠션부, 상기 쿠션부에서 상기 베이스로 연장되는 축에 결합되고, 상기 제1 및 제2 랙기어들과 맞물리도록 형성되는 제1 기어를 포함하는 록킹기어부 및 상기 쿠션부 및 제1 기어의 사이에서 전후방으로 이동이 가능하도록 상기 쿠션부와 결합되고, 저면에 돌출부가 형성되는 조작부를 포함하며, 상기 조작부를 후방을 향해 이동시켜 상기 돌출부가 상기 제1 기어를 하강시키면, 상기 제1 기어는 상기 제2 랙기어와 연결이 해제되고 상기 쿠션부는 슬라이딩 이동이 가능하도록 전환된다.


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    Title :

    SEAT CUSHION EXTENSION DEVICE


    Additional title:

    DISPOSITIF D'EXTENSION DE COUSSIN DE SIÈGE
    시트쿠션 익스텐션 장치


    Contributors:

    Publication date :

    2019-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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