| 摘要 |
A bicycle transmission contains a control rod, which is directly coupled with a pedal gear, thrown over the rollers of block and covers slave rollers. The control rod is made of two ropes, which are connected together at fixed points, middle of one of which is fastened on the frame of bicycle, and the second one covers additional idler with spring, it additionally contains a mechanism of change of gearing and adjusting the effort, which consists of two mobile rollers, elastic element and tension rod. |
