| 摘要 |
PROBLEM TO BE SOLVED: To set a threshold in response to the amount of harvested grains, and control the amount of grains discharged from a dust-discharging port on the basis of the set threshold. SOLUTION: A charging port sensor 23b is disposed in a charging port 23a for sending out grains into a grain tank 4, and discharged amount detection sensors 34 are disposed in a dust-discharging port 33 and an exhausting passage 37. A threshold is set on the basis of the grain amount detected with the charging port sensor 23b, and when a grain amount detected with the discharged amount detection sensors 34 is larger than the set threshold, the operations of a dust-sending valve 10a and a treating cylinder valve 13a are controlled to reduce the amount of the grains discharged from the dust-discharging port 33 and the exhausting passage 37. COPYRIGHT: (C)2010,JPO&INPIT
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