PROBLEM TO BE SOLVED: To provide a combine capable of easily performing engaging/disengaging operations of a sprocket shaft and an input shaft in rotating a feed chain with preventing reaped grain clums from being caught in an engaging/disengaging unit of the sprocket shaft and the input shaft.SOLUTION: The sprocket shaft 74 of a driving sprocket 52 of the feed chain and the input shaft 65 installed to a transmission mechanism in the machine side transmitting the power from an engine to the sprocket shaft 74 are constituted to be engaged and disengaged, and a cylindrical member 38 having a cylindrical shape is installed to the outer periphery of the engaging/disengaging unit 66.COPYRIGHT: (C)2008,JPO&INPIT【課題】スプロケット軸と入力軸との係脱部に刈取穀稈が巻き込まれることを防止しつつ、フィードチェンを回動させる際にスプロケット軸と入力軸との係脱作業を容易に行うことができるコンバインを提供する。【解決手段】前記フィードチェンの駆動スプロケット52のスプロケット軸74と、該スプロケット軸74にエンジンからの動力を伝達する機体側の伝動機構に具備した入力軸65とを係脱可能に構成して、その係脱部66の外周に筒状の筒状部材38を設けた。【選択図】図6
