| 摘要 |
<p>A main derailleur body includes a first end and a second end. The first end of the main derailleur body (12) is configured to be mounted to a bicycle. A chain cage (13) is pivotally coupled to the second end of the main derailleur body (12) between at least a first orientation and a second orientation. A first pulley (P1) is rotatably mounted relative to the main derailleur body (12). A second pulley (P2) is rotatably mounted to the chain cage (13) to move therewith relative to the main derailleur body (12). A third pulley (P3) is rotatably mounted to the main derailleur body (12) such that the third pulley engages a chain (C) extending between the first and second pulleys when the chain cage (13) is in the first orientation and disengages the chain upon movement of the chain cage from the first orientation to the second orientation.</p> |
