PROBLEM TO BE SOLVED: To solve a problem that a narrow space is conventionally formed between a rotation locus of a threshing tooth and an outer periphery of a threshing cylinder, thereby threshing processing efficiency being low and clogging generated to increase load and cause deformation.SOLUTION: In a threshing cylinder 21, threshing tooth support members 25 each including plural threshing teeth 20 are arranged with a predetermined interval in a radial direction with respect to a threshing cylinder shaft 26. The threshing tooth support members 25 are arranged with predetermined intervals in a peripheral direction with respect to each other. A drum part 27 having a circle or polygonal cross section is arranged between the threshing tooth support member 25 and the threshing cylinder shaft 26. A plate-like member 45 facing an axial center direction of the threshing cylinder shaft 26 is arranged in a space 29 formed between an outer peripheral face of the drum part 27 and the threshing tooth support member 25.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】従来では扱歯の回転軌跡と扱胴の外周との間に形成される空間が狭く、脱穀処理効率が低く、詰まりが発生して負荷を大きくして、変形するという課題がある。【解決手段】扱胴21は、扱歯20を複数設けた扱歯支持部材25を、扱胴軸26と径方向に所定間隔をおいて配置すると共に、扱歯支持部材25は互いに周方向に所定間隔を置いて配置し、前記扱歯支持部材25と前記扱胴軸26の間に、断面が円形または多角形状のドラム部27を設け、ドラム部27の外周面と扱歯支持部材25の間に形成される空間29に、前記扱胴軸26の軸心方向を向く板状部材45を設けたコンバイン。【選択図】図4
