| 摘要 |
A working vehicle is constructed such that rotation power of an engine (E) is transmitted to drive wheels ( 3 F, 3 R) via a main speed-changing device ( 1 ) and an auxiliary speed-changing device ( 2 ) and that shift positions of the auxiliary speed-changing device ( 2 ) are switchable by shift operation of a shift lever ( 5 ). Further, the shift lever ( 5 ) is switchable between an operation position (P 1 ) for working and an operation position (P 2 ) for road traveling. At the operation position (P 1 ) for working, shift positions can be switched, by combination of the main speed-changing device ( 1 ) and the auxiliary speed-changing device ( 2 ), between a large number of positions from a low-speed range to a high-speed range. At the operation position (P 2 ) for road traveling, shift positions of the main speed-changing device ( 1 ) can be smoothly switched, in conjunction with operation of an accelerator pedal ( 8 ) or a throttle lever ( 17 ), only within a high-speed range suitable for road traveling. The shift lever ( 5 ) has a switch ( 29 ) allowing the main speed-changing device ( 1 ) to be shifted one by one to each shift stage in the speed increasing direction or in the speed reducing direction.
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