PROBLEM TO BE SOLVED: To provide a thresher capable of suppressing an occurrence of grain loss by sorting air of a winnower.SOLUTION: A thresher includes a threshing part 1 for subjecting reaped grain culms to threshing treatment, a sorting part 2 for swinging and sorting threshed products subjected to the threshing treatment in the threshing part while conveying them, a first grade product recovery part 34 for recovering a first grade product flowing down from the sorting part 2, a second grade product recovery part 35 located on the downstream side of the first grade product recovery part 34 in a conveying direction for recovering a second grade product flowing down from the sorting part 2, a second sub-winnower 16 provided between the first grade product recovery part 34 and the second grade product recovery part 35 for blowing air toward the rear upper part so that it passes over the second grade product recovery part 35, and a shutter 43 capable of opening and closing an air outlet 42 of the second sub-winnower 16.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】唐箕の選別風による穀粒ロスの発生を抑制できる脱穀装置を提供する。【解決手段】刈取穀稈を脱穀処理する脱穀部１と、脱穀部１で脱穀処理された脱穀処理物を搬送しながら揺動選別する選別部２と、選別部２から流下した１番物を回収する１番回収部３４と、１番回収部３４よりも搬送方向下流側に位置し、選別部２から流下した２番物を回収する２番回収部３５と、１番回収部３４と２番回収部３５との間に設けられ、２番回収部３５の上方を通過するように後上方に向けて風を吹き出すことが可能な第２副唐箕１６と、第２副唐箕１６の吹出口４２を開閉可能なシャッタ４３と、が備えられている。【選択図】図１
