| 摘要 |
PURPOSE:To simplify the structure of the transmission in the title and make its assembly easy by always connecting the first carrier to an output shaft, the second ring gear and the third sun gear, and the first ring gear to the second carrier and the third ring gear respectively, by means of three single planetary gear trains. CONSTITUTION:A sun gear 11 is connected to an input shaft IS through a clutch C1, and a carrier 14 is always connected to a ring rear 23, a sun gear 31 and an output shaft OS, and a ring gear 13 to a carrier 24 and a ring gear 33 respectively. Furthermore, a ring rear 13 is connected to a case 90 through a brake BI. On the other hand, a sun gear 21 is connected to an input shaft IS and a case 90 through a clutch C3 and a brake B2 respectively, and a carrier 34 is connected to the case 90 through a brake B3. Therefore, the structure can be simplified, its assembly can be made easy and the range of a speed change ratio can be made bigger, by using three single pinion type single planetary gear train.
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