PROBLEM TO BE SOLVED: To improve durability while favorably performing work by operating a threshing device in an appropriate state for manual feed threshing work in performing the manual feed threshing work.SOLUTION: A combine includes: a restriction member 26 enabling switch between a restriction cancellation state enabling manual feed of grain culms and a restriction state restricting the feed of grain culms a detection sensor detecting the restriction state or the restriction cancellation state and a threshing control unit controlling a drive speed of a threshing device 4 such that a detection of the restriction state by the detection sensor causes an operation state for reaping work and a detection of the restriction cancellation state by the detection sensor causes an operation state for manual feed threshing. On a frame body 30 supporting a grain culm conveyance device 11, a support member 46 supporting the detection sensor is connected and fixed. The restriction member 26 is supported by the support member 46 so as to oscillate around a lateral shaft core. The oscillation around the shaft core switches the restriction state and the restriction cancellation state.COPYRIGHT: (C)2016,JPO&INPIT【課題】枕扱ぎ作業の際には、枕扱ぎ作業に適した運転状態で脱穀装置を作動させることにより作業を良好に行えるようにしながら、耐久性の向上を図る。【解決手段】手動での穀稈の供給を可能にする規制解除状態と穀稈の供給を規制する規制状態とに切り換え自在な規制部材26と、規制状態であるか規制解除状態であるかを検出する検出センサと、検出センサが規制状態を検出すると刈取作業用の運転状態になり、検出センサが規制解除状態を検出すると枕扱ぎ用の運転状態になるように、脱穀装置4の駆動速度を制御する脱穀制御部とが備えられ、穀稈搬送装置11を支持するフレーム体30に、検出センサを支持する支持部材46が連結固定され、規制部材26が、横向き軸芯周りで揺動自在に支持部材46に支持され、且つ、軸芯周りでの揺動により規制状態と規制解除状態とに切り換わる。【選択図】図3