PROBLEM TO BE SOLVED: To provide a work vehicle equipped with a steering means capable of freely carrying out changeover to a straight advancing state and a turning state, and designed to perform work in the form of repeating the straight advancing traveling to travel along a straight-line work route and the traveling for changing the route to travel from the terminal end of the straight-line work route toward the next straight-line work route in the predetermined set traveling pattern.SOLUTION: The work vehicle is equipped with an automatic turning control means 102 performing work stroke changeover control for changing over and controlling the steering means 101 so as to automatically carry out the traveling for changing the work route, and a manually operable type automatic turning command means SW for issuing a command of starting the traveling for changing the work route. The automatic turning control means 102 is composed so as to perform the work stroke changeover control on the basis of the command from the automatic turning command means SW.COPYRIGHT: (C)2010,JPO&INPIT【課題】直進状態と旋回状態とに切り換え自在な操向手段を備えて、直線状の作業経路に沿って走行する直進走行と前記直線状の作業経路の終端部から次回の直線状の作業経路に向けて予め定めた設定走行パターンにて走行する経路変更用走行とを繰り返す形態で作業を行う作業車に関する。【解決手段】作業経路変更用走行を自動で行うように前記操向手段101を切り換え制御する作業行程切換制御を実行する自動旋回制御手段102と、前記作業経路変更用走行の開始を指令する手動操作式の自動旋回指令手段SWとが備えられ、前記自動旋回制御手段102が、前記自動旋回指令手段SWの指令に基づいて前記作業行程切換制御を実行するように構成する。【選択図】図2
