PROBLEM TO BE SOLVED: To disperse shred waste culm being discharged from a cutting processing chamber of a thresher to a farm field in a uniform state.SOLUTION: A thresher comprises: a cutting processing trunk (54) rotatably supported in a cutting processing chamber (50) and rotation blades (51) extending in a radial direction of the cutting processing trunk (54) from a peripheral face of the cutting processing trunk (54). The rotation blades (51) are arranged in a row in a rotation axial center direction of the cutting processing trunk (54), and three rows of the rotation blades (51) are arranged in a peripheral direction of the cutting processing trunk (54) with intervals, and each of the rows of the rotation blades (51) has five or more rotation blades (51).SELECTED DRAWING: Figure 16COPYRIGHT: (C)2016,JPO&INPIT【課題】本発明では、脱穀装置の切断処理室から圃場に排出される細断排稈の散布を均等にすることを課題とする。【解決手段】切断処理室(50)内に回転自在に支持された切断処理胴(54)と、該切断処理胴(54)の周面から切断処理胴(54)の径方向に延出される回転刃(51)を備え、この回転刃(51)が、切断処理胴(54)の回転軸心方向に列を成して配置され、この回転刃(51)の列が、切断処理胴(54)の周方向に間隔をおいて3列配置されると共に、各回転刃(51)の列に5つ以上の回転刃(51)を備える。【選択図】図16
