| 摘要 |
PURPOSE:To improve the operating property of a working vehicle by enabling switch over to the allowing condition and preventing condition of the switching operation of a front wheel change gear to an acceleratingly driving condition side by means of a change lever when a traveling change gear is in a low speed condition. CONSTITUTION:After a change lever 37 is operated to a low speed position along a lever guide, as the change 37 is slidingly operated in the direction of a shaft center, the operating part 37a of the change level 37 is engaged with the engaging part 35a having a plan view of lateral U-shape provided on the boss part of a front wheel gear change operating arm 35. And, then, the change lever 37 is swingingly operated along the lever guide and a gear change shaft 9 is operated by means of the front wheel gear change arm 35, to displace a cam member 44 in a position opposite to an operating part 31a. In this condition, as a front wheel is operated at above a set angle, an operating shaft 31 is operated to an accleratingly driving condition side by the cam action of the cam member 44 and a front wheel change gear is switched over to an acceleratingly driving condition via a shift fork 30.
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