PROBLEM TO BE SOLVED: To reduce clogging of waste culm in a waste culm processing device including a cutting device to improve efficiency of threshing works.SOLUTION: A waste culm processing device of a thresher including a cutting device (50) that has a plurality of rotary cutters (51) around a rotation axis (54A) in the right and left direction, is attached to the rear part of the thresher (3). The waste culm processing device can switch a driving rotational direction of the rotation axis (54A) between a normal rotation direction and a reverse rotation direction. Cutting parts are constituted at a marginal part in an upstream side of the rotary cutter (51) rotation direction and at a marginal part in a downstream side thereof. A receiving blade (52) is, when viewed from an axial direction of the rotation axis (54A), arranged at a position where a rotation locus of the rotary cutter (51) is overlapped and cutting parts are formed at both edges of the receiving blade (52). A rotation direction of the rotation axis (54A) can be switched by remote control operation between the normal rotation direction and the reverse rotation direction.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2016,JPO&INPIT【課題】切断装置を有する排稈処理装置の内部において排稈の詰まりを少なくし、脱粒作業の能率を高める。【解決手段】左右方向の回転軸(54A)に複数の回転刃(51)を備えた切断装置(50)を有し、脱粒装置(3)の後部に装着される脱粒装置の排稈処理装置において、回転軸(54A)の駆動回転方向を正転方向と逆転方向に切替自在な構成とする。また、回転刃(51)の回転方向における上手側の縁部と下手側の縁部に刃部を形成する。また、回転軸(54A)の軸心方向から視て、回転刃(51)の回転軌跡に重合する位置に受刃(52)を配置し、受刃(52)の両縁部に刃部を形成する。また、回転軸(54A)の回転方向を、遠隔操作によって正転方向と逆転方向に切替可能な構成とする。【選択図】図7
