| 摘要 |
PROBLEM TO BE SOLVED: To provide a selection control device of a thresher, capable of suppressing third crop loss occurrence to minimum, and in a state of maintaining high selection accuracy, preventing damage of grains(paddies) when an amount of processed products on an oscillation selection body 51 becomes less, and removing a selection load earlier, and collecting grains from a thresher 4 into a grain tank 6 without leaving the grains, in selection control of the thresher 4.SOLUTION: A selection control device changes automatically a fin aperture of a chaff sieve 55 based on a processed product amount on an oscillation selection body 51 detected by processed product amount detection means 80, 81, and when the amount of the processed products on the oscillation selection body 51 becomes equal to or lower than a prescribed amount, and a fin 55a becomes in a prescribed closed state, controls so that the fin 55a becomes in a prescribed open state.SELECTED DRAWING: Figure 12 |
