PROBLEM TO BE SOLVED: To provide a working vehicle secured in smooth turning travel even in case of being in a farm condition of the occurrence of a slip of the rear wheel inside turning, and also capable of securing working accuracy through suppressing the descent of a working section and its positional deviation in its operation again.SOLUTION: The working vehicle includes a controller 163 having the function of conducting a series of turning conjunctive operations comprising the following actions: by starting the steering of a front wheel 10, the counting of the turning distance of the rear wheel inside turning is started a working section 4 is halted in its operation the side clutch of the rear wheel 11 inside turning is turned off and the working section 4 is operated again correspondingly to a set value N2 based on the turning distance n of the rear wheel 11. The turning conjunctive operations are designed to be switchable, to the inside intermittent transmission control functioning to intermittently transmit the traveling power identical in speed with the outside to the rear wheel 11 inside turning, by on/off operation of an inside side clutch, and correct so as to decrease the set value N2 correspondingly to the switching.COPYRIGHT: (C)2011,JPO&INPIT【課題】旋回内側後輪のスリップが発生する圃場状況にあっても、円滑な旋回走行を確保するとともに、作業部の下降および再稼動の位置ずれを抑えて作業精度を確保することができる作業車両を提供する。【解決手段】作業車両は、前輪10の操舵開始により、旋回内側後輪の回転距離のカウント開始、作業部4の停止、旋回内側後輪11のサイドクラッチ切、同後輪11の回転距離nに基づく設定値N2対応の作業部4の再稼動までの一連の旋回連動制御をする制御装置163を備えて構成され、この旋回連動制御は、内側サイドクラッチの断続動作によって旋回内側の後輪11に外側と同速の走行動力を間欠的に伝動する内側間欠伝動制御に切替え可能に構成し、この内側間欠伝動制御への切替えと対応して設定値N2を小さくする補正を行うようにしたものである。【選択図】図10
