| 摘要 |
A shift lever is mounted on the bicycle frame for pivoting about a first axis and for angular displacement about a second axis perpendicular to the first axis. A first speed changing cable connects the shift lever to the first train, and a second speed changing cable is connected to a member displaceable by angular displacement of the shift lever. The first cable is connected to an end of the shift lever so that it is displaced linearly upon pivoting of the shift lever about the first axis. Angular displacement of the shift lever effects rotation of a drum or gear which, in turn, effects linear displacement of the second cable. Conjoint pivoting of the shift lever and angular displacement thereof effects simultaneous linear displacement of both speed changing cables.
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