PROBLEM TO BE SOLVED: To provide a threshing device that is capable of improving the sorting efficiency of a swing sorting shelf.SOLUTION: A threshing device 3 is provided with a threshing chamber 10 shaft-mounting a threshing cylinder 11, swing sorting shelf 16, a primary conveyor and a secondary conveyor provided below the swing sorting shelf 16, a secondary processing device 25, and a secondary processing body. In the threshing device, the secondary processing device 25 is configured so that the rear of a secondary grain processing spiral 28 is used as a starting end, and the secondary grain is processed while transferring forward by the secondary grain processing spiral 28 from this starting end. In a lower part of the secondary grain processing spiral 28, there is provided a plate-like guide member 35 arranged obliquely downward toward the top of the swing sorting shelf 16 from the lower side of the secondary grain processing spiral 28 beyond a right side plate 36 of the threshing device 3, and receiving the secondary processed material falling from the secondary processing device 25 and making it flow down.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】揺動選別棚の選別効率を向上させられる脱穀装置を提供する。【解決手段】扱胴11を軸装した扱ぎ室10と、揺動選別棚16と、揺動選別棚16の下方に設けた一番コンベアおよび二番コンベアと、二番処理装置25と、二番処理胴を設けた脱穀装置3において、二番処理装置25は、二番物処理螺旋28の後部を始端部とし、この始端部から二番物を二番物処理螺旋28によって前方へ移送しながら処理する構成とし、二番物処理螺旋28の下方の部位には、二番物処理螺旋28の下側から脱穀装置3の右側板36を越えて揺動選別棚16上に向かって下がり傾斜して配置され、二番処理装置25から落下する二番処理物を受け止めて流下させる板状のガイド部材35を設けた。【選択図】図3