PROBLEM TO BE SOLVED: To facilitate the operation of a manual operation device of a rice transplanter by stopping a seedling-transplanting part in an ascending position at a position a little upper than a transplanting position by operating a descending switch at a grip part of a speed change lever.SOLUTION: The working vehicle has the seedling-transplanting part ascending and descending by an ascending and descending actuator on a traveling vehicle, an ascending and descending position-detecting means for detecting the ascending and descending position of the seedling-transplanting part to the traveling vehicle at the operation of the seedling-transplanting part in a grounded state, and a descending operation means for descending the seedling-transplanting part in the ascended state based on the detected result of the ascending and descending position-detecting means, stopping the seedling-transplanting part at a prescribed height from the ground, and keeping the position.COPYRIGHT: (C)2007,JPO&INPIT【課題】田植機の操作装置において、変速レバーのグリップ部の下げスイッチを操作して、上昇位置にある苗植付部を植付位置より少し上方で停止させ操作を容易化する。【解決手段】走行車両に対して昇降アクチュエータにより昇降する苗植付部を設け、この苗植付部を接地させた状態での作業時に、走行車両に対する苗植付部の昇降位置を検出する昇降位置検出手段を設け、上昇状態にある苗植付部を、昇降位置検出手段の検出結果に基づいて下降させ、地面から所定高さの位置で停止しその位置に保持する下降操作手段を設ける。【選択図】図5
