| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain unloader which unloads grain even in a small amount in the same manner as in the large amount of grain unloaded and is simplified in structure. SOLUTION: The grain unloader is equipped with a screw type unloading apparatus 8 for conveying grain from a grain tank to a grain discharge port 9 and the grain discharge port 9 is equipped with an opening and closing lid 12 for preventing grain leakage. The grain unloader is equipped with a gear type opening and closing means A for changing the opening and closing l2 into an open position against the urging force of a torsion spring 17. The opening and closing means A is linked through grease to the unloading apparatus 8. The opening and clothing lid 12 is changed to an open position during the operation of the unloading apparatus. COPYRIGHT: (C)2008,JPO&INPIT
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