PROBLEM TO BE SOLVED: To achieve a working vehicle preventing occurrence of a tilling mark when lifting a rotary tiller from a lowered position, and having improved operability of farm work in a field.SOLUTION: The working vehicle is equipped with lifting and lowering mechanisms 8 and 9 for driving a rotary tiller F mounted on the rear part of a traveling body 1 so as to be lifted and lowered, and an operation-commanding means 37 for outputting an operation command, and also equipped with a tiller-automatically lifting means for driving the lifting and lowering mechanism 8 and 9 so that the rotary tiller F may be lifted from the lowered position to a previously set intermediate position at a speed lower than the speed for lifting the rotary tiller F from the intermediate position to the lifted position based on the operation command from the operation-commanding means 37.COPYRIGHT: (C)2009,JPO&INPIT【課題】ロータリ耕耘装置を下降位置から上昇させる際に形成される耕耘跡の発生を防止でき、圃場での農作業の作業性を向上させることのできる作業車を実現する。【解決手段】走行車体1の後部に装備されたロータリ耕耘装置Fを昇降駆動する昇降機構8,9と、操作指示を出す操作指示手段37と、を備え、操作指示手段37からの操作指示に基づいて、ロータリ耕耘装置Fを予め設定された中間位置から上昇位置まで上昇させる速度よりも低速で、ロータリ耕耘装置Fを下降位置から中間位置まで上昇させるように、昇降機構8,9を駆動させる耕耘装置自動上昇手段を備えて、作業車を構成する。【選択図】図9
