| 摘要 |
A linear derailleur (200) for positioning a drive chain (48) in response to displacement of a plurality of control cables (86, 88). The derailleur (200) includes a linear actuator having a substantially uniform actuation ratio over the range of motion of the actuator and, hence, derailleur (200). The linear actuator also has a mean actuation ratio over its range of motion equal to Cos theta:1, where theta equals the angle of inclination of the actuator.
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