PROBLEM TO BE SOLVED: To provide a combine that automatically slows a feed chain in hand threshing, and thereby facilitates supply of grain culms.SOLUTION: A combine includes a chain clutch (30) in a power transmission path from an engine (16) to a feed chain (13), and also includes control means (70) for executing a hand threshing mode to automatically decelerate an engine speed to a setting speed and mode switching means (71) for switching the hand threshing mode to an effective state and an invalid state. The combine includes a regulation member (77) for regulating the supply of the hand threshing grain culms to the feed chain (13) in the conveyance starting-edge side of the feed chain (13), and is configured such that the hand threshing mode is automatically switched to the effective state when the supply regulation of the hand threshing grain culms by the regulation member (77) is released, and the chain clutch (30) is automatically shut off when an emergency shut down switch (72) for stopping the engine (16) is operated.COPYRIGHT: (C)2015,JPO&INPIT【課題】手扱ぎ時にフィードチェンを自動的に低速化し、穀稈の供給を容易化する。【解決手段】エンジン(16)からフィードチェン(13)に至る動力伝達経路にチェンクラッチ(30)を備え、エンジン回転速度を設定回転速度まで自動的に減速させる手扱ぎモードを実行する制御手段(70)と、この手扱ぎモードを有効状態と無効状態とに切り換えるモード切換手段(71)を備え、フィードチェン(13)の搬送始端側には、フィードチェン(13)への手扱ぎ穀稈の供給を規制する規制部材(77)を備え、この規制部材(77)による手扱ぎ穀稈の供給規制を解除した場合に手扱ぎモードが有効状態に自動的に切り換わり、エンジン(16)を停止させる緊急停止スイッチ(72)が操作された場合にチェンクラッチ(30)が自動的に遮断される構成とする。【選択図】図14
