PROBLEM TO BE SOLVED: To provide an agricultural machine that moves simply and is facilitated in being controlled, has a shaft with high-stiffness and can provide high accuracy and a high-speed.SOLUTION: An agricultural work vehicle includes: a steering mechanism； and an arm held by a holding member and extended. The arm is an orthogonal coordinate type tri-articulated translational joint and is an RPY type tri-rotational joint.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】動きが単純で制御しやすく軸剛性が大きく高精度化や高速化が可能な農業機械を提供する。【解決手段】ステアリング機構が介設された農作業車であられて保持部材で保持され延出されたアームであられ並進関節の３関節の直交座標型で３回転関節のＲＰＹ型であられる。【選択図】なし
