PROBLEM TO BE SOLVED: To make a selected material smoothly flow in a swing direction and to effectively perform a sieve selection by swinging.SOLUTION: The swing selector of a thresher is equipped with a swing selection rack (15) that is furnished with a transfer rack (16), a first sieve group (17), a second sieve group (18) and a straw rack (19) in this order from the upstream side in the transfer direction of the selected material below a threshing chamber (2) swingably back and forth. The swing selection rack (15) is equipped with a plurality of cleaning members (30) composed of a plate (28) along the swing direction of the swing selection rack (15) and a scraper (29) that is brought into contact with a sieve (26) face of the first sieve group (17) or a sieve (27) face of the second sieve group (18) and removes an attachment at intervals mutually in the horizontal direction perpendicular to the swing direction of the swing selection rack (15). Drive mechanisms (34, 35, 36, 37, 38, 39 and 40) for reciprocatingly swinging the cleaning members (30) in the horizontal direction are installed.COPYRIGHT: (C)2012,JPO&INPIT【課題】選別処理物の揺動方向への流れをスムースにし、揺動による篩い選別が効果的に行えるようにする。【解決手段】選別処理物の移送方向上手側から、移送棚(16)、第1シーブ群(17)、第2シーブ群(18)、ストロ-ラック(19)の順に設けた揺動選別棚(15)を、扱室(2)の下方に前後方向揺動自在に設け、該揺動選別棚(15)には、該揺動選別棚(15)の揺動方向に沿うプレート(28)と、第1シーブ群(17)のシーブ(26)面または第2シーブ群(18)のシーブ(27)面に接触して付着物を除去するスクレーパ(29)とからなる複数の清掃部材(30)を、該揺動選別棚(15)の揺動方向と直交する左右方向に互いに間隔をおいて設け、これら各清掃部材(30)を左右方向に往復揺動させる駆動機構(34,35,36,37,38,39,40)を設ける。【選択図】 図4
