| 摘要 |
<P>PROBLEM TO BE SOLVED: To minimize increases in the clutch capacity for forward and reverse swithcing and the strengthening of the clutch in a working vehicle for implementing a V-shaped working. <P>SOLUTION: A transmission includes an input shaft 40, output shafts 43, 44, intermediary shafts 41, 42, a power transmission mechanism, and a controller 60 for switching power transmission channels. The power transmission mechanism includes a foward low-speed clutch FL, a foward high-speed clutch FH, a reverse clutch R, and a plurality of speed stage switching clutches C1-C3. The controller 60 turns on the reverse clutch R as well as turning off the forward low-speed clutch FL or the forward high-speed clutch FH when a switch is made from forward to reverse to thereby switch to a changeable reverse speed shift stage, while when the switch is made form reverse to forward, turns on the forward low-speed clutch Fl as well as turns off the reverse clutch R to thereby switch to a changeable forward speed shift stage. <P>COPYRIGHT: (C)2013,JPO&INPIT |
