To provide an externally mounted gear box for a bicycle which contributes to a cost reduction.SOLUTION: An externally mounted gear box for a bicycle comprises: a base member which is mounted on a frame of a bicycle; a movable member which is moved with respect to the base member; and a link mechanism which couples the base member and the movable member. The link mechanism includes: a first link arm; and a second link arm located closer to the frame than the first link arm when the base member is mounted on the frame. The first link arm comprises a first mounting member for mounting an urging member for applying urging force to the link mechanism on the link mechanism. The first mounting member is mounted on the first link arm so as to be detachable.SELECTED DRAWING: Figure 1

    【課題】コストの削減に貢献できる自転車外装変速機を提供する。【解決手段】自転車外装変速機は、自転車のフレームに取り付けられるベースメンバと、前記ベースメンバに対して移動するムーバブルメンバと、前記ベースメンバと前記ムーバブルメンバとを連結するリンク機構と、を備え、前記リンク機構は、第1リンクアーム、および、前記ベースメンバが前記フレームに取り付けられたとき、前記第1リンクアームよりも前記フレームから近い位置にある第2リンクアームを含み、前記第1リンクアームは、前記リンク機構に付勢力を付与する付勢部材を前記リンク機構に取り付けるための第1取付部材を備え、前記第1取付部材は、前記第1リンクアームに対して着脱可能に取り付けられる。【選択図】図1


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    Title :

    EXTERNALLY MOUNTED GEAR BOX FOR BICYCLE


    Additional title:

    自転車外装変速機


    Contributors:

    Publication date :

    2019-01-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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