PROBLEM TO BE SOLVED: To provide a threshing cylinder that can thresh smoothly, while reducing a harvest loss, even if grain culms to be threshed are long culms or wet grain culms.SOLUTION: Protrusions (114) and recesses (115) along an axial direction of a threshing cylinder shaft (12) are alternately formed on an outer circumferential surface of a rotating body (61) supported by the threshing cylinder shaft (12), and a large number of rod-like threshing teeth (60A) are included in the protrusions (114). For this reason, a first plate body (112) is included which is mounted over between adjacent protrusions (114) and forms recesses (115) between the adjacent protrusions (114). Also, it is structured such that the width in the circumference direction mainly on the shaft center of the threshing cylinder shaft (12) in the recesses (115) becomes larger as being separated from the shaft center of the threshing cylinder shaft (12). Also, a removable second plate body (121) is included which is mounted over between adjacent protrusions (114) and closing the recesses (115).COPYRIGHT: (C)2015,JPO&INPIT【課題】脱穀する穀稈が長稈であったり、濡れた穀稈であっても、収穫損失を低減しながら、円滑に脱穀処理できる扱胴を提供する。【解決手段】扱胴軸(12)に支持された回転体(61)の外周面に、扱胴軸(12)の軸心方向に沿う凸部(114)と凹部(115)を交互に形成し、凸部(114)に多数の棒状の扱歯(60A)を備える。このために、隣接する凸部(114)の間にわたって装着し、隣接する凸部(114)の間に凹部(115)を形成する第1板体(112)を備える。また、凹部(115)内における扱胴軸(12)の軸心を中心とした円周方向での幅が、扱胴軸(12)の軸心から離れるほど大きくなる構成とする。また、隣接する凸部(114)の間にわたって装着して凹部(115)を塞ぐ着脱自在な第2板体(121)を備える。また、【選択図】 図28
