PROBLEM TO BE SOLVED: To remove free grain from threshed waste straw, so as to prevent discharge of the grain with the waste straw.SOLUTION: A supplying hole (6e) is formed between a threshing chamber middle front plate (6c) provided at the rear part in a threshing chamber (6) and a threshing chamber middle rear plate (6d) provided at the rear side of the threshing chamber middle front plate (6c) with a space so that the threshing discharge waste in the threshing chamber (6) is supplied from the inside of the threshing chamber (6) to the inside of a discharge waste treating chamber (10) through the supplying hole (6e), wherein, at a position between the threshing drum (7a) and a threshing drum (11a) and between the threshing chamber middle rear plate (6d) and a threshing rear plate (6b) having a waste straw discharge hole (6f) discharging the threshed waste straw, a guide element (9a) is provided along the peripheray of a rotation trajectory of threshing cogs (7b).COPYRIGHT: (C)2010,JPO&INPIT【課題】脱穀後の排藁からささり粒を除去し、穀粒が排藁と共に機外へ排出されることを防止する。【解決手段】扱室(6)内の後部に設けた扱室中前板(6c)と、該扱室中前板(6c)の後側に間隔をおいて設けた扱室中後板(6d)との間に供給口(6e)を形成し、扱室(6)内の脱穀排塵物を、該扱室(6)内から供給口(6e)を介して排塵処理室(10)内へ供給する構成とし、扱胴(7a)と排塵胴(11a)との間であって、脱穀済みの排藁を排出する排藁排出口(6f)を備えた扱室後板(6b)と前記扱室中後板(6d)との間の部位に、扱歯(7b)の回転軌跡外周に沿うガイド部材(9a)を設ける。【選択図】図1
