| 摘要 |
PROBLEM TO BE SOLVED: To provide a threshing device improved in threshing performance through modifying the interior of the threshing chamber of a combine harvester. SOLUTION: This threshing device has such a scheme that a threshing chamber formed by surrounding a threshing cylinder 41 with a ceiling plate, receiving net, net press, etc., is attachedly set with a plurality of projection members parallel to the revolving direction of the threshing cylinder 41; as an embodiment, the projection members are bars 43, 43... being attachedly set on a feed chain 7 side, on the threshing receiving net 42 corresponding to the latter half of grain culm feed direction, parallel to the revolving direction of the threshing cylinder 41, and nearly midway between threshing teeth 41b and 414b, respectively; alternatively, bars 46, 46... are attachedly set on a near net press 44, parallel to the revolving direction of the threshing cylinder 41, and nearly midway between the threshing teeth 41b and 414b, respectively; furthermore, the top faces 43a(46a) of the bars 43(46) and the respective turning loci of the threshing teeth tips 41d of the threshing cylinder 41 are lapped on each other when viewed from the front.
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