PROBLEM TO BE SOLVED: To provide a working vehicle which can prevent unstable turning caused by allowing a braking force of a running portion to give effect to a drive force of the running portion inside the turning, and can prevent advancing of a running machine body to a direction unexpected by an operator.SOLUTION: A working vehicle includes: right and left side clutches that allow each of the driving forces to right and left running portions to be intermitted while operating the right and left running portions by an engine a side clutch operating tool 14 that intermittently operates each of the right and left side clutches and a drive force reducing means 84 that transmits the drive force smaller than the drive force generated when the side clutches are continued to be in operation. In the working vehicle, the running portion inside the turning where the side clutches are disconnected is configured to be driven by the drive force smaller than that of the running portion outside the turning where the side clutches are not disconnected in such a state that both parking brake for simultaneously braking the right and left running portions while the side clutches are continued to be in operation and side brake that separately brakes the right and left running portions while the side clutches are disconnected, are not in braking operation.COPYRIGHT: (C)2013,JPO&INPIT【課題】走行部制動力が旋回内側の走行部駆動力に影響し旋回動作が不安定になるのを防止でき、オペレータが予期しない方向に走行機体が向くのを防止できるようにした作業車両を提供する。【解決手段】エンジンで左右走行部を作動させる一方、左右走行部への駆動力をそれぞれ断続させる左右のサイドクラッチと左右のサイドクラッチをそれぞれ断続操作するサイドクラッチ操作具14とサイドクラッチが継続されているときの駆動力よりも小さい駆動力を伝達する動力半減手段84を設ける作業車両において、サイドクラッチが継続されているときに左右走行部を同時に制動するパーキングブレーキと、サイドクラッチが切断されているときに左右走行部を各別に制動するサイドブレーキの両方が非制動状態で、サイドクラッチが切断された旋回内側の走行部が、サイドクラッチが切断されていない旋回外側の走行部の駆動力よりも小さい駆動力にて駆動されるように構成した。【選択図】図5
