| 摘要 |
PROBLEM TO BE SOLVED: To provide the subject apparatus securing the maximum extended length despite being equipped with a stationary carrying cylinder and a mobile carrying cylinder each with a limited length. SOLUTION: This extendable grain discharge apparatus 2 designed to discharge, out of the combine harvester, grains reserved in the grain tank on the combine harvester, is made up of a stationary carrying cylinder vertically turnably pivoted on the top of a grain elevation cylinder 3 equipped on the grain tank and a mobile carrying cylinder extendably linked to the stationary carrying cylinder; wherein the mobile cylinder is designed to be mobile in the cylindrical direction through being subjected to transmission by the aid of an extendably driving unit 5 linked thereto via a moving device 4, while the stationary carrying cylinder is designed to be vertically movable by the aid of a relevant hydraulic cylinder 6 interposed between the stationary carrying cylinder and the grain elevation cylinder 3; and the moving device 4 can be moved from the mounting end P on the mobile carrying cylinder side of the hydraulic cylinder 6 to a position near the grain elevation cylinder 3.
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