The chainless driving system for a bicycle of the present invention comprises: a gear housing (50) which comprises: a crankshaft (40) into which a crank (38) is inserted; and an input gear shaft (60a), into which an input gear (65) is inserted, on one side and an output gear shaft (60b), into which an output unit (55) is inserted, on the other side, which is placed with an interval from the crankshaft (40); a rear shaft (140) having a rear shaft gear (142) inserted into one side thereof; a connection gear (152) which is engaged with the rear shaft gear (142) and which is rotatably placed on the link stay (155); and a plurality of links (150) which are rotatably connected and placed in parallel between the output unit (55), which is inserted into the output gear shaft (60b) of the gear housing (50), and the connection gear (152). The plurality of links (150) rotate in a longitudinal direction and a horizontal direction in accordance with the rotation of the crankshaft (40) without interfering with each other. The present invention aims to provide a chainless driving system for a bicycle, which is able to provide a beautiful design with a balanced structure and to reduce noise and frictional loss at the same time.

    본 발명의 자전거용 무체인 구동계는 크랭크(38)가 끼워지는 크랭크축(40)과, 상기 크랭크축(40)에 간격을 두고 배치되며 일측에 입력기어(65)가 끼워지는 입력기어축(60a)과 타측에 출력부(55)가 끼워지는 출력기어축(60b)을 구비한 기어 하우징(50)과; 일측에 뒷축기어(142)가 끼워지는 뒷축(140)과; 상기 뒷축기어(142)와 치합되고, 링크 스테이(155)에 회전 가능하게 배치된 연결기어(152)와; 상기 기어 하우징(50)의 출력기어축(60b)에 끼워진 출력부(55)와 상기 연결기어(152)의 사이에 회동 가능하고 서로 평행하게 연결 배치된 복수개의 링크(150)로 이루어지며, 상기 복수개의 링크(150)는 크랭크축(40)의 회전에 따라 경사진 각도로 종방향과 횡방향으로 서로 간섭되지 않게 회동하도록 구성된다.


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    Title :

    Chainless transmission mechanism for bicycle


    Additional title:

    자전거용 무체인 구동계


    Contributors:

    Publication date :

    2017-04-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F16H Getriebe , GEARING



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