| 摘要 |
PROBLEM TO BE SOLVED: To provide a system in a combine harvester or the like, designed to control regulating output so as to avoid excessive regulation when the threshing depth for grain culms to be fed to a threshing device is regulated to deep threshing side in making a high-level reaping on a levee edge and then subjected to reverse regulation to shallow threshing side. SOLUTION: This control system works in such a way that, in a combine harvester or the like having a high-level reaping detective means 2 for detecting a situation of high-level reaping on a levee edge by a reaping device 1, a threshing depth detective means 4 for detecting the threshing depth position of grain culms to be fed to a threshing device 3 and a threshing depth regulating means 5 for regulating the threshing depth position of such grain culms, when a high-level reaping situation is detected by the means 2, a regulation toward deep threshing side is made to a specified position by the means 5 followed by reversion to the original threshing depth position; wherein when the situation stands in reaping operation, the regulating output toward shallow threshing side by the means 5 is turned ON in response to the ON signal on deep threshing side from the detective means 4, concurrently the regulating output toward shallow threshing side is turned OFF by the OFF signal from the means 4.
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