| 摘要 |
<p>The board has a chain step gearbox comprising a chain sun wheel (7) and a rocker (5). The rocker is provided for holding a chain (3) at a locking pin (2). The locking pin is guided by the rocker, and the chain is moved to a shifting board locking disk (4) and simultaneously locked in a fixed housing bridge for stable and precise locking of a shifting plate in a locking position. The locking pin is attached to the rocker, and the locking disk is fixedly connected with the sun wheel. A driving crank (9) is fastened to a planetary chain wheel (6) in a rotatable manner.</p> |
