PROBLEM TO BE SOLVED: To provide a thresher of a combine comprising second shedding processing means for performing shedding processing of second processed products on a second spiral reception gutter of a selection chamber, in which second processed products including a large amount of grains are reduced into a second processing cylinder chamber, dust processed products including a large amount of waste straws are distributed and reduced into a dust processing cylinder chamber, for improving significantly processing of the second processed products generated in a threshing chamber, reducing selection burdens, and improving selection performances.SOLUTION: The invention relates to a thresher comprising: a second processing cylinder chamber (8) for processing second processed product reduced to a lateral side part of a threshing chamber (3)； and a dust processing cylinder chamber (10) for performing dust processing of dust processed products from a terminal of the threshing chamber, in which a terminal of a second spiral reception gutter (21) of the selection chamber has shedding selection processing means (23), the second processed products subjected to shedding processing are reduced into a second processing cylinder chamber (8), the dust processed products are reduced into the dust processing cylinder chamber (10).SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】選別室の２番螺旋受樋に２番処理物を脱粒処理する２番脱粒処理手段を設け、穀粒を多く含む２番物は２番処理胴室内へ還元し、多量の藁屑を含む排塵処理物は排塵処理胴室に振り分け還元して処理することで、扱室内で発生する２番物の処理を大幅に向上し、選別負担を軽減し、選別性能の向上を図ること。【解決手段】本発明は、扱室（３）の横側部に還元された２番物を処理する２番処理胴室（８）と扱室終端からの排塵処理物を排塵処理する排塵処理胴室（１０）を並設した脱穀装置において、選別室の２番螺旋受樋（２１）の終端部には脱粒選別処理手段（２３）を設け、脱粒処理された２番物は２番処理胴室（８）内に還元し、排塵処理物は排塵処理胴室（１０）内に還元すべく構成する。【選択図】図２
