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发明授权
CN108466672B 自行车用变速器以及具备其的自行车用辅助系统 有权

自行车用变速器以及具备其的自行车用辅助系统
摘要：
本发明提供能够适当变更变速比的自行车用变速器及具备其的自行车用辅助系统。自行车用变速器具备设定传递机构变速路径的设定机构，传递机构包括第一变速机构且将输入体的旋转以3级以上变速比向输出体传递，传递机构形成经过第一变速机构变速以第一变速比及第二变速比的一者向输出体传递的第一变速路径及经过与第一变速路径的变速机构不同的变速机构的变速以比第一变速比及第二变速比大的变速比向输出体传递的第二变速路径，第一变速路径包括经过第一行星机构变速不经过第二行星机构变速的第一行星变速路径及不经过第一行星机构变速经过第二行星机构变速的第二行星变速路径，设定机构以第二变速路径中不经过第一行星机构的变速的方式设定传递机构。
摘要（英）：

A bicycle shifting device includes a first shifting mechanism, a transmission mechanism, and a setting mechanism. The setting mechanism sets paths in the transmission mechanism to transmit rotation from an input body to an output body at transmission ratios of at least three steps. The transmission mechanism establishes a first path transmitting the rotation at one of first and second transmission ratios by changing a rotational speed with the first shifting mechanism, and a second path transmitting the rotation at a greater transmission ratio than the first and second transmission ratios by changing the rotational speed with a different shifting mechanism from the first shifting mechanism. The first path includes first and second planetary mechanisms. The setting mechanism sets the transmission mechanism so that the rotational speed is not changed by the first planetary mechanism in the second path.

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