PROBLEM TO BE SOLVED: To reduce a speed of a feed chain automatically during manual threshing, and to facilitate supply of grain culms.SOLUTION: The combine includes: a feed chain (13) disposed at a side of a threshing chamber (81) including a threshing cylinder (2), and conveying and supplying grain culms to the threshing chamber (81) control means (70) executing a manual threshing mode reducing automatically a rotation speed of an engine (16) mode switch means (71) switching the manual threshing mode between an effective state and invalid state and a restriction member (77) disposed at a conveyance start end of the feed chain (13), and restricting supply of manual threshing grain culms to the feed chain (13). Upon release of the restriction of the supply of manual threshing grain culms by the restriction member (77), the manual threshing mode automatically switches to the effective state, the rotation speed of the engine (16) is reduced, and the driving speed of the feed chain (13) is automatically reduced.COPYRIGHT: (C)2016,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】扱胴(2)を備えた脱穀室(81)の側部に、この脱穀室(81)に穀稈を供給しながら搬送するフィードチェン(13)を設け、エンジン(16)の回転速度を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)の回転速度が減速してフィードチェン(13)の駆動速度が自動的に減速する構成とする。【選択図】図14
