| 摘要 |
PROBLEM TO BE SOLVED: To provide a force-wind winnower for thresher solving the problem involved in conventional ones that there is an angle between a windbreak plate and a rotating winnower blade at its position closest to the windbreak plate, therefore when separatory wind blown out of a blowhole reaches the underside of the windbreak plate, a vortex flow is developed and the separatory wind often stays, resulting in the impossibility of efficient blowout. SOLUTION: The force-wind winnower for thresher has the following construction: At the position where a winnower blade 4 attached to a blade-supporting arm 3 radially extended with its base fixed on a winnower shaft 2 lies closest to a windbreak plate 7 at a separatory wind blowhole, the blade surface 4a of the winnower blade 4 and the surface 7a of the windbreak plate 7 are made nearly coplanar. COPYRIGHT: (C)2006,JPO&NCIPI
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