| 摘要 |
PROBLEM TO BE SOLVED: To provide a thresher which can effectively use air blown from a winnower for the sorting of grains to enhance performance and efficiency for sorting the grains from treated materials. SOLUTION: In this thresher, a sorting net 63 for sorting grains from treated materials leaked from a threshing chamber 66 is formed from the first sorting net 63a on the upstream side and the second sorting net 63b placed below the first sorting net 63a on the downstream side of the first sorting net 63a in the direction for conveying the treated materials in a sorting portion 50, and the second sorting net 63b is disposed between the first sorting net 63a and the first shelf board 64. By such the simple constitution, the treated materials are subjected to an air sorting for sorting grains with sorting air from a winnower 79, and a part of the treated materials can again be guided to the second sorting net 63b below the first sorting net 63a. Thereby, the treated materials are again sorted with the second sorting net 63b, and the treated materials are easily divided to enhance the air sorting and specific gravity sorting of the grains, thus improving a grain sorting performance for the grains leaking down on the first shelf board 64. COPYRIGHT: (C)2009,JPO&INPIT
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