| 摘要 |
PROBLEM TO BE SOLVED: To provide a speed change operation device to generate sufficient shift operation force by a motor of small output, and conduct speed change operation in short time. SOLUTION: In a reducer 53 disposed in a transmission passage to transmit output of the motor 51 to a shift fork 12, a reduction ratio when the shift fork 12 is at a balk point is set to be larger than a reduction ratio when it is at a shift operation start (engagement release) position or a shift operation end (engagement fastening) position. COPYRIGHT: (C)2004,JPO
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