PROBLEM TO BE SOLVED: To provide a work vehicle capable of causing a vehicle body to run in a straight line with a high degree of precision, and improving operation accuracy compared with a conventional work vehicle.SOLUTION: A work vehicle includes: a receiving antenna 121 for acquiring positional information from a GPS at a predetermined interval a gyro sensor 115 for detecting a change in a travelling direction from a vehicle body 2 an automatic steering apparatus 110 for operating a steering wheel 32 to keep the vehicle body 2 in a straight line direction and a control device 150 for actuating the automatic steering apparatus 110 based on the detection of the receiving antenna 121 and the gyro sensor 115, and stopping the automatic steering apparatus 110 when the positional information acquisition interval becomes longer or shorter within a predetermined time.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2016,JPO&INPIT【課題】走行車体を高い精度で直進走行させることができ、作業精度を従来以上に向上させることのできる作業車両を提供すること。【解決手段】GPSから位置情報を所定間隔で取得する受信アンテナ121と、車体2からの進行方向の変化を検知するジャイロセンサ115と、ハンドル32を操作して車体2を直進方向に維持する自動操舵装置110と、受信アンテナ121とジャイロセンサ115の検出に基づいて自動操舵装置110を作動させ、所定時間内に位置情報の取得間隔が広がると、又は狭まると自動操舵装置110を停止させる制御装置150を備えた作業車両である。【選択図】図7
