The present invention relates to a detachable structure of a crank for a bicycle and a bicycle having the detachable structure, which are able to easily detach a crank arm and the like. The detachable structure of the crank for the bicycle comprises: a crankshaft (20) rotatable by being supported by a vehicle body frame (10) of the bicycle; a chain ring (30) rotating as one body with the crankshaft (20); two crank arms (40, 50), respectively placed on both end sides of the crankshaft (20) and rotating as one body with the crankshaft (20); and a detachable unit (60) detachably fixing and mounting the crank arm (50) on one side toward the crankshaft (20). The detachable unit (60) includes: a mainframe member (61) bound with the crankshaft (20) by being inserted from an axial outer side toward the crank arm (50) on one side; and an operation member (62) movable by the operation from the outer side. By the movement of the operation member (62), the bound status is released, so the crankshaft (20) is separated from the mainframe member (61).

    크랭크 암 등을 용이하게 착탈한다. 자전거의 차체 프레임(10)에 지지되어 회전 가능한 크랭크축(20)과, 크랭크축(20)과 일체적으로 회전하는 체인 링(30)과, 크랭크축(20)의 양단 측에 각각 마련되어 크랭크축(20)과 일체 회전 가능한 2개의 크랭크 암(40, 50)과, 일방의 크랭크 암(50)을 크랭크축(20)에 대하여 착탈 가능하게 고정장착하는 착탈 유닛(60)을 구비한 자전거용 크랭크의 착탈 구조로서, 착탈 유닛(60)은, 상기 일방의 크랭크 암(50)에 대하여 축방향 외측으로부터 삽입되어 크랭크축(20)에 계지되는 본체 부재(61)와, 외부로부터의 조작에 의하여 이동 가능한 조작 부재(62)를 구비하고, 조작 부재(62)의 상기 이동에 의하여 상기 계지의 상태를 해제하여, 본체 부재(61)로부터 크랭크축(20)이 분리되도록 했다.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    A BICYCLE EQUIPPED WITH A DETACHABLE STRUCTURE OF A BICYCLE CRANK AND DETACHABLE STRUCTURE


    Weitere Titelangaben:

    자전거용 크랭크의 착탈 구조 및 그 착탈 구조를 구비한 자전거


    Erscheinungsdatum :

    02.11.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



    Bicycle crank set comprising detachable crank

    MORGENDER PETER | Europäisches Patentamt | 2024

    Freier Zugriff

    Detachable bicycle

    ZHANG MINGHUA / KONG WEIJIE | Europäisches Patentamt | 2015

    Freier Zugriff

    Detachable folding bicycle

    ZHANG ZHAO | Europäisches Patentamt | 2021

    Freier Zugriff

    Battery detachable structure of electric bicycle

    Europäisches Patentamt | 2016

    Freier Zugriff

    BATTERY DETACHABLE STRUCTURE OF ELECTRIC BICYCLE

    KO CHANK BOK / CHOI KANG HO | Europäisches Patentamt | 2015

    Freier Zugriff