PROBLEM TO BE SOLVED: To improve efficiency of threshing/sorting work by preventing clogging of sorting objects on a swing shelf and falling into a state of becoming impossible to continue the work.SOLUTION: The threshing device includes an openable/closable shutter (100) on a second dust discharge port (103) provided on an upper side of a rear end of a swing shelf (51) a diffusion guide (88) provided on the swing shelf (51) at a position from an upper side of a transfer shelf (52) to the upper side of a first chaff sieve (53) for guidingly diffuse second processed objects supplied to a right-side front part of the transfer shelf (52) in the horizontal direction and a layer thickness sensor (43) for detecting the layer thickness of sorting objects on the transfer shelf (52), where a contactor (44a) is suspended in an attitude inclined obliquely backward and downward with respect to a sensor spindle (25) that is disposed in a direction crossing with a side face of the diffusion guide (88) in plane view. The threshing device is so configured that, when a predetermined or more layer thickness is detected by the layer thickness sensor (43), a scraper (34) for scraping off waste straws stuck to the first chaff sieve (53) is actuated.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2016,JPO&INPIT【課題】揺動棚上で被選別物が詰まって作業続行不能の状態に陥ることを防止し、脱穀選別作業の能率を高める。【解決手段】揺動棚(51)の後端部上側に設けた第2排塵口(103)に開閉自在のシャッタ(100)を設け、揺動棚(51)に備えた移送棚(52)の上側から第1チャフシーブ(53)の上側に亘る部位に、移送棚(52)の右側前部に供給された二番処理物を左右方向に拡散案内する拡散ガイド(88)を設け、移送棚(52)上の被選別物の層厚を検出する層厚センサ(43)を、拡散ガイド(88)の側面と平面視で交差する方向に配置されたセンサ支軸(25)に対して、接触子(44a)を斜め後方へ下がり傾斜した姿勢で吊り下げ、層厚センサ(43)によって一定以上の層厚が検出されたときに第1チャフシーブ(53)に付着する藁屑を掻き落とすスクレーパ(34)が作動する構成とする。【選択図】図5
