PROBLEM TO BE SOLVED: To provide a combine which appropriately performs manual threshing work, and reaping/threshing work of lodged grain culms.SOLUTION: A combine includes: a threshing device 4 threshing reaped grain culms a threshing feed chain 13 feeding grain culms to the threshing device 4 setting means 20, 43, 52 switching a conveyance state of the threshing feed chain 13 and a controller 46 switching, based on a setting of the setting means 20, 43, 52, among a first mode in which the threshing feed chain 13 is driven at a speed synchronized with a conveyance speed of a reaping part 3, a second mode in which the threshing feed chain 13 is driven at a constant high conveyance speed, and a third mode in which the threshing feed chain 13 is driven at a constant low conveyance speed lower than the constant high conveyance speed.COPYRIGHT: (C)2016,JPO&INPIT【課題】コンバインにおいて、手扱ぎ脱穀作業及び倒伏穀稈の刈取脱穀作業を適切に行う。【解決手段】刈取穀稈を脱穀する脱穀装置(4)と、該脱穀装置(4)へ穀稈を供給する脱穀フィードチェン(13)と、該脱穀フィードチェン(13)の搬送状態を切替える設定手段(20,43,52)を設け、該設定手段(20,43,52)の設定に基づいて、脱穀フィードチェン(13)を刈取部(3)の搬送速度に同調した速度で駆動する第1モードと、脱穀フィードチェン(13)を一定の高速搬送速度で駆動する第2モードと、脱穀フィードチェン(13)を前記高速搬送速度よりも低速で一定の低速搬送速度で駆動する第3モードとに切替えるコントローラ(46)を設ける。【選択図】図9
