PROBLEM TO BE SOLVED: To provide a combine that prevents grain culms from being entangled inside a feeder house and can perform reaping and threshing work efficiently.SOLUTION: A combine includes a first rotary body (12) arranged at the front part in a frame body (10) of a feeder house (3D), which can move vertically relative to the frame body (10)； a second rotary body (14) arranged at the rear part in the frame body (10)；a chain (15) wound on the first rotary body (12) and the second rotary body (14), which has a plurality of grain culm conveying members； and a rotary body lifting mechanism (70) for moving the first rotary body (12) vertically relative to the frame body (10). When a rotation speed of an auger device (3C) is lower than an auger rotation speed set beforehand, the rotary body lifting mechanism (70) is caused to be actuated to lift the first rotary body (12).SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】フィーダハウスの内側で穀稈が絡み付くのを防止して刈取・脱穀作業を効率良く行うことができるコンバインを提供する。【解決手段】フィーダハウス（３Ｄ）の枠体（１０）内の前部に配置され、枠体（１０）に対して上下移動可能な第１回転体（１２）と、枠体（１０）内の後部に配置される第２回転体（１４）と、第１回転体（１２）と第２回転体（１４）に巻回されて複数の穀稈搬送部材を有するチェン（１５）と、第１回転体（１２）を枠体（１０）に対して上下に移動させる回転体昇降機構（７０）を備え、オーガ装置（３Ｃ）の回転速度が、あらかじめ設定されたオーガ回転速度を下回った場合に、回転体昇降機構（７０）を作動させて第１回転体（１２）を上昇させる。【選択図】図２
