PROBLEM TO BE SOLVED: To provide a threshing cylinder structure of a threshing part which can improve the rigidity and reduce the weight of threshing tooth attachment members, and can efficiently attach threshing tooth members.SOLUTION: In a threshing cylinder structure of a threshing part 6 in which threshing tooth members 39 are erected toward the radial outside of a threshing cylinder 35 with prescribed intervals in a threshing cylinder axial direction with respect to a plurality of threshing tooth attachment members 38 which are arranged along the axial direction of a threshing cylinder axis 35a with prescribed intervals in the circumferential direction of the threshing cylinder 35, cross sections of the threshing tooth attachment members 38 are formed into U-shaped cross sections or L-shaped cross sections having openings in a view of the threshing cylinder axial direction, and free end sides of an upper wall face 38b and a lower wall face 38c forming the openings are connected to each other by the threshing tooth members 39.COPYRIGHT: (C)2015,JPO&INPIT【課題】扱歯取付部材の剛性の向上と軽量化を図ると共に扱歯部材を能率よく取付けることができる脱穀部の扱胴構造を提供する。【解決手段】扱胴35の周方向に所定間隔を隔てて扱胴軸35aの軸心方向に沿わせて配設される複数の扱歯取付部材38に対し、扱歯部材39を扱胴軸心方向に所定間隔を有し扱胴35の径方向外方に向けて立設する脱穀部6の扱胴構造であって、前記扱歯取付部材38を、扱胴軸心方向視で開口部を有するコ字状断面又はL字状断面に形成すると共に、該開口部を形成する上壁面38bと下壁面38cの夫々の自由端側を扱歯部材39で連結する扱胴構造とした。【選択図】図4
