PROBLEM TO BE SOLVED: To prevent the leaking of grains from a grain input port of a grain tank by means of a simple structure, while supporting the grain tank in such a way that it can be freely switched between a storage attitude and a discharge attitude, and to avoid decrease in the capacity of the grain tank.SOLUTION: A grain input port 21 is provided in a wall face portion 20a of a grain tank 20 which takes a vertical attitude when the grain tank 20 takes a storage attitude. A grain discharge cylinder 44c of a lifting device 40 for supplying threshed grains from a thresher to the grain tank 20 is provided in such a manner as to be freely switchable between an input-port-connected state in which it is connected to the grain input port 21 of the grain tank 20 in the storage attitude and a non-input-port-connected state in which it is not connected to the grain input port 21 of the grain tank 20 in the discharge attitude.COPYRIGHT: (C)2013,JPO&INPIT【課題】穀粒タンクを貯留姿勢と排出姿勢に姿勢変更自在に支持するものでありながら、穀粒タンクの穀粒投入口からの穀粒漏れを構造簡単に防止することができるようにし、かつ穀粒タンクの容量減少を回避できるようにする。【解決手段】穀粒タンク20が貯留姿勢である際に鉛直姿勢となる穀粒タンク20の壁面部20aに穀粒投入口21を設けてある。穀粒タンク20に脱穀装置からの脱穀粒を供給する揚穀装置40の穀粒吐出筒44cを、貯留姿勢での穀粒タンク20の穀粒投入口21に接続した対投入口接続状態と、排出姿勢での穀粒タンク20の穀粒投入口21に接続しない対投入口非接続状態とに変更自在に構成してある。【選択図】図9
