PROBLEM TO BE SOLVED: To provide a thresher to be mounted on a combine or a harvester and having improved sorting performance of clean grains.SOLUTION: A threshing drum 31 is rotatably supported in a threshing chamber 33 and the treating object spilled from a screening mesh 30 under the threshing chamber 33 is received with a shaking sort shelf 38 and sorted under shaking in the course of transportation. The shaking sort shelf 38 is composed of a transfer shelf 49, a grain sieve 38a, a chaff sieve 38b and a straw rack 38c arranged in the order from the upstream side to the downstream side based on the transfer direction of the treating object. The grain sieve 38a is composed of a front grain sieve P and a rear grain sieve Q.COPYRIGHT: (C)2008,JPO&INPIT【課題】一番物の選別性能を向上させるようにする。【解決手段】扱室33内に扱胴31を軸架して設け、該扱室33下側の扱網30より漏下する被処理物を、揺動選別棚38で受けて揺動移送しながら揺動選別する脱穀装置において、該揺動選別棚38は被処理物の搬送方向上手側から下手側にかけて移送棚49、グレンシーブ38a、チャフシーブ38b、ストローラック38cとから構成し、前記グレンシーブ38aは前部グレンシーブPと後部グレンシーブQとから構成したことを特徴とする脱穀装置の構成とする。【選択図】図6
