| 摘要 |
PROBLEM TO BE SOLVED: To provide a combine harvester which removes dusts or waste straws in tailings return retreatment materials flowed down from a tailings return flow grain board by the wind-sorting of a tailings return sorting wind from a sorting fan, thereby improving tailings return retreatment material-sorting workability. SOLUTION: This combine harvester in which a clean grain conveyer 231, a winnowing fan 228, a tailings conveyer 232, and a sorting fan 241 for supplying tailings return sorting wind are disposed below a shaking sorting board 227, and a chaff-discharging fan 230 for sucking chaffs from the upper side of the shaking sorting board 227 and then discharging the chaffs on the outside of the machine is disposed above the rear end side of the shaking sorting board 227, is characterized by forming the sorting wind blowout port 241b of the sorting fan 241 on the side opposite to the clean grain conveyer 231 through the tailing conveyer 232 and enabling to supply the tailings return sorting wind of the sorting fan 241 from the sorting wind blowout port 241b in a direction crossing the flow of the tailings return retreatment materials flowed down from the tailing conveyer 232. COPYRIGHT: (C)2009,JPO&INPIT
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