| 摘要 |
PURPOSE:To simplify the whole constitution of the speed change gear in the caption and also to obtain the multi-stage of speed change such as forward 5 stages or 6 stages by constructing a gear train with two sets of double pinion type planetary gear mechanism. CONSTITUTION:Connection between an input shaft 13 and an output shaft 15 is achieved through No.1, No.2 planetary gear mechanism 1, 2. By means of on-off operation of No.1-No.3 clutch means C1-C3, and No.1-No.3 brake means B1-B3, for example, by engaging C1 with B1, the rotation of the input shaft 13 is inputted to sun gears 3, 4 to fix carriers 11, 12 and the ring gear 5 is raced to decelerate a ring gear 6, thus the first forward speed is set up similarly, the second speed by the engagement between C2 and B2, the third speed by the engagement between C3 and B1, the fourth speed by the engagement between C2 and B3, the fifth speed by the engagement between C2 and C3, the sixth speed by the engagement between C3 and B3, and backward motion by the engagement between C1 and B2 can be set up respectively. Thus, a constitution can be simplified and the multi-stage of speed charge such as forward 5 stages or 6 stages, can be obtained.
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