PROBLEM TO BE SOLVED: To solve a problem in that since in a grain-unloading auger having an opening and closing plate at an unloading pipe of the tip end of the auger, it is necessary to attach the opening and closing plate, its rotary shaft and driving device each separately, their assembling and maintenance are troublesome.SOLUTION: At the one of left and right side plates 38 constituting the unloading pipe 30 having a rectangular cross section, the opening and closing plate 43, rotary shaft 46 and driving device 45 are attached as one unit to make a sub-assy. The side plate 38 which is the sub-assy, is attached to the front and rear side plates 31, 39 and also a plate 51 having a bearing 51a and arranged at the tip end of the rotary shaft 46 is attached from its inside to another side plate 37.COPYRIGHT: (C)2012,JPO&INPIT【課題】オーガ先端部の排出筒に開閉板を有する穀粒排出オーガは、開閉板及びその回動軸並びにその駆動装置をそれぞれ別個に組付ける必要があり、組立て及びメンテナンスが面倒である。【解決手段】断面矩形状の排出筒30を構成する左右側板の一方38に、開閉板43、回動軸46及びその駆動装置45を一体に組込んでサブアッシーとする。該サブアッシーである側板38を前後の側板31,39に組付けると共に、回動軸46の先端に配置した軸受51aを有するプレート51を内側から他方の側板37に組付ける。【選択図】図11
