| 摘要 |
PROBLEM TO BE SOLVED: To improve the recovery ratio of free grain over rack existing in waste straws transported by a feed chain. SOLUTION: In a threshing apparatus 9 with which a threshing cylinder 31 is pivotally mounted in a threshing chamber 33, a shaking separation rack 38 is arranged below the threshing chamber 33, a winnower 43, a first spiral 46 and a second spiral 47 are arranged from an upper side in a separation air sending direction below the shaking separation rack 38, grain straws are threshed while being transported by a feed chain 15, a cylinder 51 for dropping free grain over rack is installed behind the threshing cylinder 31 and a plurality of blades 51b for dropping free grain over rack, which are attached to the cylinder 51, are inclined by a fixed angle G in the rotation direction of the threshing cylinder 31. COPYRIGHT: (C)2006,JPO&NCIPI
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