To perform the excellent conveyance processing over a long period while allowing attachment in the state of covering the outer side of a lower side rotational shaft without inconvenience.SOLUTION: A grain culm conveyance device 11 includes left and right endless turning bodies wound over left and right lower side wheel bodies 22 provided at an interval on a horizontal lower side rotational shaft 19 and an upper side wheel body provided on an upper side rotational shaft, a cylindrical winding prevention cover 29 is provided between the left and right lower side wheel bodies 22, the cylindrical winding prevention cover 29 includes two division cover bodies 29A, 29B divided along the shaft core direction of the lower side rotational shaft 19, the two division cover bodies 29A, 29B are inserted so as to have an overlapping part 52, in the front view, the division cover body 29B on the other side is located on the upper side in the rotation direction of a threshing drum 9 of a grain culm carry-in port 35, and the division cover body 29A on the one side is located on the lower side in the rotation direction of the threshing drum 9.SELECTED DRAWING: Figure 5【課題】煩わしさなく下手側回転軸の外方側を覆う状態で装着することが可能なものでありながら、長期にわたり良好な搬送処理を行えるようにすることが望まれていた。【解決手段】穀稈搬送装置１１に、横向きの下手側回転軸１９に間隔をあけて設けられた左右の下手側輪体２２と、上手側回転軸に設けられた上手側輪体と、にわたって左右の無端回動体が巻回され、左右の下手側輪体２２同士の間に筒状の巻付き防止カバー２９が備えられ、巻付き防止カバー２９は、下手側回転軸１９の軸芯方向に沿って分割された二つの分割カバー体２９Ａ，２９Ｂにて構成され、二つの分割カバー体２９Ａ，２９Ｂは重複部５２を有するように差し込まれており、正面視において、穀稈搬入口３５のうちで扱胴９の回転方向上手側に他方側の分割カバー体２９Ｂが位置し、扱胴９の回転方向下手側に一方側の分割カバー体２９Ａが位置している。【選択図】図５
