PROBLEM TO BE SOLVED: To construct a working vehicle to be able to properly detect the end of turning.SOLUTION: The working vehicle includes travel distance detection means for detecting the travel distance of a machine body, and steering angle detection means for detecting the steering angle from the straight forward position of freely steerable front wheels, and the position Y2 of the machine body during turning in the travelling direction of the machine body before starting the turning is detected based on the turning initiation in a working process by the travel distance G of the machine body based on the number of revolution of the wheels 2 and the steering angle A from straight advance position A1 of the freely steerable wheels 1.COPYRIGHT: (C)2011,JPO&INPIT【課題】作業車において旋回の終了を適切に検出することができるように構成する。【解決手段】機体の走行距離を検出する走行距離検出手段と、操向操作自在な前輪の直進位置からの操向角度を検出する操向角度検出手段とを備え、車輪2の回転数に基づいて機体の走行距離Gと、操向操作自在な車輪1の直進位置A1からの操向角度Aとにより、作業行程からの旋回開始に基づいて、旋回開始前の機体の進行方向での旋回中の機体の位置Y2を検出する。【選択図】図8
