PROBLEM TO BE SOLVED: To provide a combine harvester which enables simple operation which is not troubled by the condition of two power sources which actuate an unloading auger by an operation member of a simple structure for unloading auger controlling.SOLUTION: The combine harvester includes: a motor part (6) which can change an internal combustion type motor (11) and an electric actuator (12) as a power source an unloading auger (5a) which discharges grain from a grain tank (5) with power received from the motor part (6) and a controller (C) which controls the operation and switching of each power source of the motor part (6), and the operation of the unloading auger (5a), wherein two or more operation members (21 22) which command the starting of the unloading auger (5a) through the controller (C) are individually arranged, and the controlling is prepared such that when the starting signal of one of the operation members (21 22) is received, if the internal combustion type motor (11) is in the condition of stopping or standby, the power source is changed to the electric actuator (12) to operate the unloading auger (5a).COPYRIGHT: (C)2012,JPO&INPIT【課題】排出オーガ制御のための簡易な構成の操作部材により、排出オーガを駆動する2つの動力源の状況に煩わされることのない簡便な操作を可能とするコンバインを提供する。【解決手段】コンバインは、内燃式原動機(11)および電動アクチュエータ(12)を動力源として切替えが可能な原動部(6)と、この原動部(6)から受ける動力によってグレンタンク(5)から穀粒を排出する排出オーガ(5a)と、原動部(6)の各動力源の稼動および切替えと排出オーガ(5a)の稼動を制御する制御部(C)とを備えて構成され、上記制御部(C)を介して排出オーガ(5a)の起動を指令する複数の操作部材(21,22)を個別に配設し、そのいずれかの操作部材(21,22)の起動信号を受けた時に、内燃式原動機(11)が停止または待機の状態であれば、動力源を電動アクチュエータ(12)に切替えて排出オーガ(5a)を稼動する制御を設けたものである。【選択図】図1