PROBLEM TO BE SOLVED: To reduce a threshing load in a threshing chamber and increase the processing capacity of a thresher.SOLUTION: In a threshing cylinder of a thresher in which a plurality of support members (25) for supporting threshing teeth (20) are arranged at intervals in a circumferential direction around a threshing cylinder shaft (26), a barrel part (27) covering the threshing cylinder shaft (26) is provided inside a space surrounded by the plurality of support members (25), and plate-like members (45) are provided between an outer peripheral surface of the barrel part (27) and the support members (25). The cross-sectional shape of the barrel part (27) in a direction crossing the threshing cylinder shaft (26) is formed in a circular shape or polygonal shape. Furthermore, the cross-sectional shape of the barrel part (27) in the direction crossing the threshing cylinder shaft (26) is formed in a polygonal shape to arrange an apex (30) of the barrel part (27) between two adjacent plate-like members (45).SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】扱室内の脱穀負荷を軽減すると共に、脱穀装置の処理能力を高める。【解決手段】扱歯(20)を支持する複数の支持部材(25)を、扱胴軸(26)を中心とする円周方向に互いに間隔をおいて配置した脱穀装置の扱胴において、複数の支持部材(25)によって囲われた空間内に、扱胴軸(26)を覆う胴部(27)を設け、この胴部(27)の外周面と支持部材(25)の間に板状部材(45)を設ける。また、扱胴軸(26)に交差する方向での胴部(27)の断面形状を、円形状または多角形状に形成する。また、扱胴軸(26)に交差する方向での胴部(27)の断面形状を多角形状に形成し、この胴部(27)の頂部(30)を、隣接する2つの板状部材(45)の間に配置する。【選択図】 図4
