PROBLEM TO BE SOLVED: To provide an apparatus for unloading grains for preventing the leakage of the grains by sealing a gap which may be formed between a grain outlet and an unloading switching member when the unloading switching member is closed so as to close the grain outlet.SOLUTION: The unloading switching member 90 is configured to be swingingly switchable between a downward unloading permission attitude in which the grain outlet 15 is opened to permit the unloading of the grains from the grain outlet 15 and an unloading prevention attitude in which the grain outlet 15 is more upward than in the unloading permission attitude to be closed so as to prevent the unloading of the grains from the grain outlet 15. A flexible sealing member 60 is provided on the inner face of the grain outlet 15 facing the side of the unloading switching member 90 in such a manner that the sealing member 60 contacts the side edge of the unloading switching member 90 in the unloading prevention attitude so as to prevent the unloading of the grains from the grain outlet 15.COPYRIGHT: (C)2011,JPO&INPIT【課題】排出切換部材を閉じて穀粒排出口を閉鎖する状態において、穀粒排出口と排出切換部材との間に形成され得る隙間を密閉し、穀粒漏れを防止する穀粒排出装置を提供する。【解決手段】排出切換部材90は、穀粒排出口15を開放して穀粒排出口15からの穀粒の排出を許容する下向きの排出許容姿勢と、排出許容姿勢よりも上向きで穀粒排出口15を閉鎖して穀粒排出口15からの穀粒の排出を阻止する排出阻止姿勢とに揺動切換自在であり、排出切換部材90の側部に対向する穀粒排出口15の内面に可撓性を有するシール部材60を配設し、排出阻止姿勢においてシール部材60と排出切換部材90の側縁部とが当接して、穀粒排出口15からの穀粒の排出を阻止するように構成してある。【選択図】図5