| 摘要 |
PROBLEM TO BE SOLVED: To prevent the selection failure of grains in a manual threshing mode.SOLUTION: A combine-harvester comprises: a feed chain 34 driven by an engine E for transporting grain culm to a thresher 5; a fan 5G for blowing to select a processed product threshed by the thresher 5, at a regulated airflow made to correspond to the revolution speed of the engine E; a sheave 5L for selecting the processed product falling; and a control unit 200 for controlling the engine E, the fan 5G and the sheave 5L. In a manual mode corresponding to a manual work, in which the grain culm is manually fed to the feed chain 34, the control unit 200 performs a control to set the engine E to a speed lower than a rated rotation speed in the manual mode, a control to set a fan 5G to an air flow higher than a regulated one, and to narrow the sheave 5L.SELECTED DRAWING: Figure 9 |
