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    • 1. 发明公开
    • Gear shifting system
    • 换档系统
    • EP1630090A1
    • 2006-03-01
    • EP05009598.3
    • 2005-05-02
    • HONDA MOTOR CO., Ltd.
    • Kaga, HiroyukiKimura, Tatsuro
    • B62M9/04B62J13/04
    • B62M9/04B62J13/04
    • An object of the present invention is to provide a gear shifting system which does not require a position of a chain to be set with high precision, and which can prevent the chain from coming off from an adjacent sprocket due to a quick gear shifting operation.
      The gear shifting system includes: a derailer for changing the chain C from one gear shifting sprocket to another among a plurality of the gear shifting sprockets 41 to 47 arranged in the axis direction; and a case 20 for containing the gear shifting sprockets 41 to 47 and the chain C. The case 20 is provided with a protruding part 56 for checking the chain C from moving in the axis direction too close to the case 20 in a position which makes the protruding part 56 seem to overlap with a hooked part C1 of the chain C engaging with an adjacent sprocket 41 which is the closest to the case 20 in the axis direction out of the gear shifting sprockets 41 to 47, when viewed from the side. The protruding part 56 prevents the chain C from coming off from the adjacent sprocket 41 by means of contact of the protruding part 56 with the chain C.
    • 本发明的目的在于提供一种不需要高精度地设定链条的位置,并且能够通过快速的变速操作防止链条从相邻的链轮脱落的变速系统。 变速系统包括:用于将链条C从一个变速链轮变换为沿轴线方向排列的多个变速链轮41至47中的另一个的变速器; 以及用于容纳换档链轮41至47和链条C的壳体20.壳体20设置有突出部分56,用于检查链条C沿着轴向方向移动得太靠近壳体20, 当从侧面看时,突出部56看起来与链条C的钩状部分C1重叠,所述链条C的钩状部分C1与沿着轴向方向在壳体20中最靠近壳体20的相邻链轮41接合。 通过突出部56与链条C的接触,突出部56防止链条C从相邻链轮41脱落。