| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a reaping rise control device for a combine-harvester to raise and fall a reaping part of the combine harvester by detecting the ground height of a reaping part by a ground sensor disposed at the reaping part of the combine-harvester, wherein the reaping part is prevented from excessively falling to plunge the grass-dividing lever of the reaping part into a farm field in the case where the combine harvester runs for reaping across the recess or groove of the farm field.SOLUTION: In a reaping rise and drop control device for a combine-harvester, a reaping ground sensor SE2 disposed on grass-dividing lever 10 of a reaping transfer part 7 contacts the ground to detect the ground height of the reaping transfer part 7, and lifting means 15 of the reaping transfer part is controlled to keep the reaping transfer part 7 at a target ground height. The reaping transfer part 7 is equipped with a grain calm sensor SE9. In the case where it is detected while the grain calm sensor SE9 is detecting the grain calm that a grounding part SE2a of the reaping ground sensor SE2 leaves the ground surface continuously for a predetermined time period, the descent output of the lifting means 15 is stopped.</p> |
