| 摘要 |
A variable speed transmission including a transfer section for establishing operating direction, a variable speed planetary transmission section arranged in operating alignment with the transfer section, and a range section for effectively multiplying the number of speed ratios established by the variable speed planetary transmission section. The transfer section includes a pair of planetary gear train, sun gears of which are coupled with a power input shaft and the variable speed planetary transmission section comprises four sets of planetary gear trains, all sun gears of which are coupled with a center shaft which is arranged in alignment with the power input shaft.
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