To provide a combine that allows maintenance work of the inside of a threshing chamber to be performed easily without complicating the structure.SOLUTION: A combine is provided with a thresher 4 for threshing reaped grain culms in a threshing chamber 23. The threshing chamber 23 is provided with a threshing cylinder 34 that rotates around a longitudinal axis X, and circular arc receiving nets 54 and 55 provided along the periphery of the threshing cylinder 34. A top plate 30 that covers the upper part of the threshing chamber 23 is supported so as to be detachable along a lateral direction.SELECTED DRAWING: Figure 7【課題】構造の複雑化を招くことなく、扱室内部のメンテナンス作業を容易に行えるコンバインを提供する。【解決手段】扱室２３内で刈取穀稈を脱穀処理する脱穀装置４が備えられ、扱室２３に、前後軸芯Ｘ周りで回転する扱胴３４と、扱胴３４の外周部に沿う状態で設けられた円弧状の受網５４，５５とが備えられ、扱室２３の上部を覆う天板３０が、横方向に沿って着脱可能に支持されている。【選択図】図７
