PROBLEM TO BE SOLVED: To provide a root-vegetable harvester securing a large lifting and lowering range for turning the direction of a machine body, having improved lifting and lowering response when picking up crops during harvesting trip, and capable of solving other various problems.SOLUTION: The root-vegetable harvester is constituted of a first conveyor device 1 for taking in the field crops from the front side and conveying the crops rearward, a second conveyor device 2 for supporting the first conveyor device 1 so as to be lifted and lowered, and delivering and conveying the crops to the machine body side, and the machine body receiving the crops while supporting the second conveyor device 2 so as to be lifted and lowered. Both the conveyor devices 1 and 2 are equipped with driving systems enabling the first conveyor device 1 and the second conveyor device 2 to be driven individually according to the operation mode of an operation member L for common lifting and lowering operation.COPYRIGHT: (C)2008,JPO&INPIT【課題】機体の方向転換のための大揚程の昇降範囲を確保するとともに、収穫走行によって作物を拾い上げる際の昇降応答を向上しつつ、その他の諸問題を解決することが可能な根菜類収穫機を提供する。【解決手段】根菜類収穫機は、圃場作物を前方から取込んで後送する第一搬送装置1と、この第一搬送装置1を昇降可能に支持してその作物を機体側に中継移送する第二搬送装置2と、この第二搬送装置2を昇降可能に支持しつつ作物を受ける走行可能な機体とから構成され、上記両搬送装置1,2は、共通昇降操作用の操作部材Lの操作態様に応じて第一搬送装置1と第二搬送装置2とが個別に昇降動作する駆動系を備えるものである。【選択図】図3
