PROBLEM TO BE SOLVED: To improve the operability of a transmission mechanism while reducing the decrease of a volume of a grain-collecting tank.SOLUTION: The structure of a grain-collecting part in a combine harvester is equipped with a threshing apparatus and the grain-collecting tank 9, mounted and supported on a machine frame 2 in a right and left parallel state, a bottom screw 10 arranged along the bottom part of the grain-collecting tank 9 in the front and rear direction, a grain-unloading apparatus 13 for unloading stored grains sent to the rear side of the tank by the bottom screw 10 to the outside of the machine, and the transmission mechanism T capable of transmitting a driving force from a driving system to the bottom screw 10. The transmission mechanism T is constituted by installing a clutch mechanism 60 capable of switching the transmission of the driving force from the driving system 5, and an actuator 65 for switching the clutch, capable of carrying out the switching operation of the clutch mechanism 60 in a lower part of the front end part of the grain-collecting tank 9. An overhang part 9b projected above the clutch mechanism 60 and the actuator 65 for switching the clutch is formed by swelling the grain-collecting tank 9 to the front end part.COPYRIGHT: (C)2013,JPO&INPIT【課題】穀粒回収タンクの容量減少を緩和しながら、伝動機構の操作性の向上を図る。【解決手段】機体フレーム2上に左右に並列状態で搭載支持された脱穀装置と、穀粒回収タンク9と、穀粒回収タンク9の底部に沿って前後向きに配備された底スクリュー10と、底スクリュー10によってタンク後方に送出された貯留穀粒を機外に排出する穀粒排出装置13と、駆動系から底スクリュー10へ駆動力を伝達可能な伝動機構Tとを備えたコンバインの穀粒回収部構造であって、伝動機構Tは、駆動系5からの駆動力の伝達を入切り可能なクラッチ機構60と、クラッチ機構60を入切り操作可能なクラッチ切替用アクチュエータ65とを、穀粒回収タンク9の前端部の下部に備えて構成してあり、クラッチ機構60とクラッチ切替用アクチュエータ65との上方に張り出すオーバーハング部9bが、穀粒回収タンク9を前端部に膨出させて形成してある。【選択図】図3
