PROBLEM TO BE SOLVED: To solve a problem in which an opening part of a swinging/sorting shelf is opened in the vertical direction, and therefore a blowing air of a pre-fan is hard to flow rearward, and thereby a wind sorting effect is low.SOLUTION: A combine is characterized by: providing a threshing device 3 behind a reaping device 4 for reaping grain culms of a field providing a winnower casing 87 shaft-mounting a winnower 42 in the lower part of a starting end of the threshing chamber 85 formed in the threshing device 3 providing a swinging/sorting shelf 45 having a transfer shelf 89 positioned in the upper part of the winnower casing 87 and sieves 90 provided in the rear side of the transfer shelf 89 providing a pre-fan 97 for blowing air to the first sieve 90A of the starting-edge side among the sieves 90 in the front side of the winnower casing 87 providing a scraper 107 for reciprocating in the intersecting direction to the swinging direction of the first sieve 90A and cleaning deposits of the first sieve 90A in the first sieve 90A of the starting-edge side among the sieves 90 of the swinging/sorting shelf 45 and disposing some or all of a moving mechanism 110 of the scraper 107 in an upper side air passage F.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】揺動選別棚の開口部が上下方向に開口しているため、プレファンの送風が後方に流れにくく、風選効果が低いという課題がある。【解決手段】圃場の穀稈を刈り取る刈取装置4の後方に脱穀装置3を設け、脱穀装置3に形成した扱室85の始端部下方に唐箕42を軸装した唐箕ケーシング87を設け、該唐箕ケーシング87の上方に位置する移送棚部89と、移送棚部89の後側に設けたシーブ90とを有する揺動選別棚45を設け、前記シーブ90のうちの始端側のファーストシーブ90Aに送風するプレファン97を唐箕ケーシング87の前側に設け、前記揺動選別棚45のシーブ90のうちの始端側のファーストシーブ90Aには、該ファーストシーブ90Aの揺動方向に対する交差方向に往復移動してファーストシーブ90Aの付着物を清掃するスクレーパ107を設け、該スクレーパ107の移動機構110の一部または全部を前記上側風路F内に配置したコンバイン。【選択図】図2
