PROBLEM TO BE SOLVED: To improve the selection efficiency and selection accuracy for a secondary treated material supplied to the rear part of a swing-selecting means.SOLUTION: This threshing/selecting structure of a combine harvester is provided by including a threshing drum 19 performing the threshing treatment on reaped cereal culms by rotating around a threshing drum shaft 18 at a threshing chamber 17, arranging a swing-selecting means 20 for swing-threshing the treated material leaking down from a receiving net 16 by swinging front to rear, below a receiving net 16 while conveying it in rear direction, arranging a winnower 21 for supplying selection wind to the swing-selecting means 20 by rotating around a winnower shaft 51 at the frontal lower direction of the swing-selecting means 20, at the rear part of the swing-selecting means 20, including a secondary chaff-sieve 50 performing a sieving selection treatment for the secondary treating material supplied to the rear part of the swing-selecting means and arranging a secondary winnower 23 for supplying the selection wind for the secondary material selection, blowing through by passing the lower direction of the secondary chaff-sieve 50 from the rear end part of the secondary chaff-sieve 50 to rear upper direction by rotating around a secondary winnower shaft 57 at the frontal lower direction of the secondary chaff-sieve 50.COPYRIGHT: (C)2012,JPO&INPIT【課題】揺動選別手段の後部に供給される2番処理物に対する選別効率及び選別精度の向上を図れるようにする。【解決手段】扱胴軸18を中心に回転することで刈取穀稈に扱き処理を施す扱胴19を扱室17に備え、前後揺動することで受網16から漏下した処理物を後方に移送しながら揺動選別する揺動選別手段20を受網16の下方に配備し、唐箕軸51を中心に回転することで揺動選別手段20に選別風を供給する唐箕21を揺動選別手段20の前下方に配備し、揺動選別手段20の後部に、その後部に供給される2番処理物に篩い選別処理を施す2番チャフシーブ50を備え、2番チャフシーブ50の前下方に、2番唐箕軸57を中心に回転することで、2番チャフシーブ50の下方を通過して2番チャフシーブ50の後端部から後上方に吹き抜ける2番物選別用の選別風を供給する2番唐箕23を配備する。【選択図】図3
