| 摘要 |
<p>A two-speed gear train (200) including a first gear (118) and a second gear (120) and drive members (112, 114, 106) for driving the second gear faster than the first gear. A double acting clutch (126) splined to a shaft (28A) has a first and second position for clutching either the first gear (118) or second gear (120) to the shaft (28A). The clutch teeth (134, 136, 138, 140) are provided with specially configured ramps (222) on certain edges (208, 210, 212, 214) to improve clutch engagement.</p> |
