PROBLEM TO BE SOLVED: To prevent decline of the accuracy and efficiency in sorting caused by mixture of treated objects from a discharged dust treating device into threshed objects from a threshing chamber.SOLUTION: The threshing apparatus includes: a grain culm feeding/conveying device 12 on one side of the threshing chamber 11 the discharged dust treating device 35 whose starting end communicates with the threshing chamber 11 on the other side of the threshing chamber 11 a culm outlet 25 through which threshed grain culms conveyed by the grain culm feeding/conveying device 12 pass on the rear side of the threshing chamber 11 a swing sorting shelf 20 disposed under the threshing chamber 11 and having a sheave 23 for sorting grains from waste straw, etc. by air blown from a wind sorter 16 and the reciprocating swing in the longitudinal direction. The swing sorting shelf 20 has a discharged dust receiving member 40 which integrally swings with the swing sorting shelf 20. The discharged dust receiving member 40 is disposed at a prescribed distance above from the sheave 23. The discharged dust receiving member 40 has a prescribed width in the longitudinal direction, and the width in the longitudinal direction on the discharged dust treating device 35 side is wider than the width in the longitudinal direction on the grain culm feeding/conveying device 12 side.COPYRIGHT: (C)2012,JPO&INPIT【課題】脱穀室からの脱穀物に排塵処理装置からの処理物の混入による選別精度および選別効率の低下。【解決手段】脱穀室11の一側に穀稈供給搬送装置12を設け、脱穀室11の他側に始端部を脱穀室11に連通させた排塵処理装置35を設け、前記脱穀室11の後側部位に、穀稈供給搬送装置12で搬送された脱穀済みの穀稈が通過する排稈口25を設け、前記脱穀室11の下方に唐箕16からの送風と前後方向に往復揺動により穀粒と藁屑等とを選別するシーブ23を有する揺動選別棚20を設け、該揺動選別棚20には該揺動選別棚20と一体的に揺動する排塵受部材40を、前記シーブ23より所定間隔おいた上方の位置に設け、前記排塵受部材40は前後に所定幅を有すると共に、前記穀稈供給搬送装置12側の前後幅よりも前記排塵処理装置35側の前後幅を幅広に形成した脱穀装置。【選択図】図2
