| 摘要 |
PROBLEM TO BE SOLVED: To make the threshed materials of the fourth re-threshing drum collide with the threshed materials of a discharged dust re-threshing drum so as to disperse the threshed materials, thereby improving its collecting efficiency. SOLUTION: A free grain-collecting chamber (9) for collecting free grains over rack is provided rearward of a dust discharging opening (8) at the end of a threshing chamber (3). Within the stuck grain-collecting chamber (9), the fourth re-threshing drum (11) is coasially provided with a re-threshing drum (5). At the rear of the threshing chamber (3), a discharged dust threshing chamber (19) is provided in which the discharged dust re-threshing drum (18) is installed. The rotating direction of the fourth re-threshing drum (11) is set to be the same as that of the discharged dust re-threshing drum (18). The sides of the stuck grain-collecting chamber (9) and the discharged dust threshing chamber (19), which are opposed to each other, are opened. COPYRIGHT: (C)2010,JPO&INPIT
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