PROBLEM TO BE SOLVED: To enhance efficiency in sorting, and to improve efficiency in threshing by scraping off attachments such as waste straws attached to the surface of sheaves and preventing clogging on a swing sorting shelf.SOLUTION: Scrapers (82) having blade edges (82a) for scraping off attachments on the surface of the sheaves (23) are disposed in such a way as movable back and forth along the longitudinal direction of the sheaves (23). A plurality of scrapers (82) in front and rear sheaves (23) are integrated with a single plate (81) along the direction of swing of the swing sorting shelf (20) to form a cleaning member (80). The cleaning member (80) is movable back and forth along the longitudinal direction of the sheaves (23). Blade edges (82a) of the scrapers (82) are inclined relative to the direction of movement of the scrapers (82) and are made to project to both right and left sides of the plate (81).COPYRIGHT: (C)2012,JPO&INPIT【課題】シーブの表面に付着する藁屑等の付着物を削ぎ落とし、揺動選別棚上での詰まりを防止して選別能率を高め、脱穀作業の能率を向上させる。【解決手段】シーブ(23)の表面の付着物を削ぎ落とす刃縁(82a)を有したスクレーパ(82)を、シーブ(23)の長手方向に沿って往復移動自在に設ける。また、前後のシーブ(23)に備えた複数のスクレーパ(82)を、揺動選別棚(20)の揺動方向に沿う単一のプレート(81)に一体化して清掃部材(80)を形成し、この清掃部材(80)をシーブ(23)の長手方向に沿って往復移動自在に設ける。また、スクレーパ(82)の刃縁(82a)を、スクレーパ(82)の移動方向に対して傾斜させると共にプレート(81)の左右両側に突出させる。【選択図】 図20
