PROBLEM TO BE SOLVED: To provide a combine harvester that can improve fuel consumption of an engine.SOLUTION: A combine harvester is equipped with an artificially speed changeable transmission mechanism 12, and an accelerator operation apparatus 60 that performs accelerator setting for regulating the number of revolutions of an engine 4a and keeping the regulated number of the revolutions of the engine. The transmission mechanism 12 and the accelerator operation apparatus 60 are linked so that when the transmission mechanism 12 changes gear to a speed change state of higher speed side than a set speed and the accelerator operation apparatus 60 is in an accelerator set state of higher number of revolutions than a set number of revolutions, the accelerator operation apparatus 60 is subjected to acceleration down operation to an accelerator set state of a set number of revolutions or a lower number of revolutions than the set number of revolutions.COPYRIGHT: (C)2013,JPO&INPIT【課題】エンジンの燃費向上が可能なコンバインを提供する。【解決手段】人為変速自在な変速機構12を設け、エンジン4aの回転数調節を行ない、かつ調節したエンジン回転数を保持するアクセルセットを行なうアクセル操作装置60を設けてある。変速機構12が設定速度より高速側の変速状態に変速されると、アクセル操作装置60が設定回転数より高回転数のアクセルセット状態にあれば、アクセル操作装置60を設定回転数又は設定回転数より低回転数のアクセルセット状態にアクセルダウン操作するように、変速機構12とアクセル操作装置60を連係させてある。【選択図】図3
