PROBLEM TO BE SOLVED: To provide an ordinary type combine harvester in which a top plate of a threshing device can be prevented from being damaged.SOLUTION: A threshing device that threshes crops supplied from a reaping part at the front of a machine body comprises: a threshing cylinder that rotates about an axis in the front-back direction of the machine body a top plate 26 that covers an upper part of the threshing cylinder a plurality of dust sending valves 66 provided at the top plate 26 in such a manner that their directions can be changed and a reinforcing plate 75 attached so as to be located between the top plate 26 and the dust sending valves 66.COPYRIGHT: (C)2015,JPO&INPIT【課題】脱穀装置における天板が損傷することを回避させることが可能となる普通型コンバインを提供する。【解決手段】機体前部の刈取部から供給される作物を脱穀処理する脱穀装置が、機体前後方向に沿う軸芯周りで回転する扱胴と、扱胴の上部を覆う天板26と、天板26に向き変更可能に設けられた複数の送塵弁66と、天板26と送塵弁66との間に位置する状態で取り付けられた補強板75とを備えて構成されている。【選択図】図12
