PROBLEM TO BE SOLVED: To solve the problems in which selection efficiency is reduced by the clogging of a selection net, and the maintenance is troublesome.SOLUTION: The threshing apparatus is constituted as follows. A threshing chamber 11 is formed by installing a threshing net 15 on the lower side of a threshing cylinder 10. An air selection chamber 18 for carrying out the air selection by the air sent from a winnower 16 is installed on the lower side of the threshing chamber 11. A reciprocally swung, swinging selection shelf 20 is installed in the air selection chamber 18. A sieve 23 having a plurality of fins 36 for selecting grains from waste straw, and parallelly arranged in the swinging direction is installed in the swinging selection shelf 20. The selection net 70 is installed on the lower side of the sieve 23 at a prescribed interval, and a scraper 71 reciprocally moving in the direction crossing the swinging direction of the swinging selection shelf 20 while slidingly making contact with the upper surface of the selection net 70 is installed in the swinging selection shelf 20.COPYRIGHT: (C)2013,JPO&INPIT【課題】選別網の詰まりによる選別効率の低下、メンテナンスが面倒であること。【解決手段】扱胴10の下側に扱網15を設けて脱穀室11を形成し、該脱穀室11の下方に唐箕16からの送風により風選する風選室18を設け、該風選室18に往復揺動する揺動選別棚20を設け、該揺動選別棚20には、穀粒と藁屑とを選別するフィン36を揺動方向に複数並設したシーブ23を設け、前記揺動選別棚20には、シーブ23の下方に所定間隔をおいて選別網70を設け、該選別網70の上面に摺接しながら揺動選別棚20の揺動方向と交差する方向に往復移動するスクレーパ71を設けたことを特徴とする脱穀装置。【選択図】図6
