PROBLEM TO BE SOLVED: To prevent generation of a defect caused by switching a shutter to a closed state while grains are staying at a grain discharge port.SOLUTION: A grain discharge structure of a combine includes a shutter 28 for opening and closing the grain discharge port 26 of the grain discharge device, which is constituted to switch between a grain discharge state for discharging the grains stored in a grain tank to outside of a machine and a discharge stopped state for stopping the discharge of the grains. The grain discharge structure includes a control unit 40 for controlling the opening and closing of the shutter 28, and is constituted to switch the shutter 28 to the closed state when the control unit 40 detects the switching of the grain discharge device to the discharge stopped state and the movement of the grain discharge port 26 after the detection.COPYRIGHT: (C)2012,JPO&INPIT【課題】穀粒排出口に穀粒が滞留している状態でシャッタが閉状態に切り換わることに起因した不具合の発生を防止する。【解決手段】穀粒タンクに貯留した穀粒を機外に排出する穀粒排出状態と穀粒の排出を停止する排出停止状態とに切り換え可能に構成した穀粒排出装置に、穀粒排出装置の穀粒排出口26を開閉するシャッタ28を備えたコンバインの穀粒排出構造において、シャッタ28の開閉を制御する制御手段40を備え、制御手段40が、穀粒排出装置の排出停止状態への切り換えを検知し、その検知後に穀粒排出口26の移動を検知した場合に、シャッタ28を閉状態に切り換えるように構成してある。【選択図】図7
