| 摘要 |
PROBLEM TO BE SOLVED: To provide a combine harvester capable of improving delivery performances in a grain culm feed and transportation apparatus arranged between a reaping pretreatment apparatus and a threshing apparatus, preventing culm from overflowing and eliminating the disturbance of stock in delivery and transportation of grain culm. SOLUTION: In this combine harvester in which a vertically rockable apparatus 17 for adjusting the threshing depth of grain culm and a similarly vertically rockable grain culm auxiliary transportation apparatus (outside) 33 are arranged between a transportation apparatus such as a delivery and transportation apparatus 19 at a plant foot part of grain culm in a reaping pretreatment apparatus and a grain culm feed apparatus composed of a main feed and transportation apparatus 25 for supplying and transporting a grain culm to a threshing apparatus and an auxiliary transportation apparatus 26. The width of the vertical movement at the tip of the apparatus 17 for adjusting the threshing depth is made larger than the width of the vertical movement at the tip of the auxiliary transportation apparatus (outside) 33. Since the correction of threshing depth adjusted by the apparatus 17 for adjusting threshing depth is small and a stroke of the tip of the auxiliary transportation apparatus (outside) 33 is present within the width of a stroke of the tip of the apparatus 17 for adjusting threshing depth, the supply of grain culm can be adjusted even if the auxiliary transportation means is swung in the vertical direction corresponding to a long culm or a short culm and the disturbance of grain culm in delivery is slight.
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