| 摘要 |
The rotary transmission is of the dual clutch kind and includes three gear trains (A, B and C) through which the clutches (12, 13) providing alternative drive paths between a common input shaft (11) and a common output shaft (14). One clutch 12 drives the output shaft either through a two-wheel gear train (A) or through a three-wheel train of which the first wheel (16) is a gear wheel driven directly from the input shaft, the second wheel (19) is a gear wheel interengaged with the first wheel and journalled on the output shaft and the third wheel is a sleeve wheel 25 journalled on and engageable with the output shaft so that the second wheel cannot drive the output shaft except through the sleeve wheel. The other clutch (13) is arranged to drive the output shaft either through a two-wheel gear train (C) of which the second gear wheel (20) is provided by the sleeve wheel (25) or through a six-wheel gear train of which all the gear wheels (22, 20, 19, 16, 15 and 17) are members of the first, second and third mentioned trains (A, B and C). |
