PROBLEM TO BE SOLVED: To achieve an operation part and a machine body to be lifted and lowered by an easy and efficient operation and to provide a structure enabling the rapid shift to the operation using a working part in a working machine equipped with the working part.SOLUTION: A controlling part installed in a combine harvester as the working machine carries out the machine body-lifting control of lifting the machine body by a machine body-lifting and lowering cylinder when the lifting operation of a lifting and lowering switch of a reaping part is detected in a state in which the reaping part is in a side lifted from a prescribed position when the advancing operation of a main speed-changing lever is detected. The controlling part carries out the machine body-lowering control for lowering the machine body so that the height of the machine body may be a previously set manually set position when the lowering operation of the reaping part-lifting and lowering switch is detected after the lifting control of the machine body has been carried out.COPYRIGHT: (C)2011,JPO&INPIT【課題】作業部を備える作業機において、容易かつ効率的な操作で作業部及び機体を昇降させることができるとともに、作業部を用いた作業に速やかに移行できる構成を提供する。【解決手段】作業機としてのコンバインが備える制御部は、主変速レバーの前進操作が検出されている場合において、刈取部が所定位置より上昇側にある状態で、刈取部昇降スイッチの上昇操作が検出されると、機体昇降シリンダによって機体を上昇させる機体上昇制御を行う。また、制御部は、機体上昇制御が行われた後に、刈取部昇降スイッチの下降操作が検出されると、機体の高さを予め設定される手動設定位置まで下降させる機体下降制御を行う。【選択図】図7
