PROBLEM TO BE SOLVED: To solve a problem that constitution of a thresher is complicated, when a returning device for returning second products formed in a sorting process to a shaking sorting device is disposed.SOLUTION: Grain-singling treatment devices 11c, 13a, 19 and 20 for separating products conveyed with a lateral second products-conveying device 11 into single grains are arranged in a lateral second products-conveying device 11 for conveying the conveyance materials such as grains and impurities in a direction opposite to a laterally clean grain-conveying device 9, and a transfer device 21 for transferring the conveyance materials from the conveying final end portion of the laterally tailing conveyance device 11 to the conveying start end portion of the laterally clean grain conveying device 9 is disposed.COPYRIGHT: (C)2013,JPO&INPIT【課題】選別工程で生じた2番物を揺動選別装置に戻すための還元装置を設けると、脱穀装置の構成が複雑になる。【解決手段】1番横搬送装置9と逆方向に穀粒及び夾雑物等の搬送物を搬送する2番横搬送装置11に、2番横搬送装置11で搬送される搬送物から穀粒を単粒化して分離するように処理する単粒化処理装置11c,13a,19,20を配置すると共に、2番横搬送装置11の搬送終端部から前記1番横搬送装置9の搬送始端部に向けて搬送物を移送する移送装置21を設ける。【選択図】図4
