PROBLEM TO BE SOLVED: To improve the configuration of a lifting device, thereby increasing the grain filling rate of a grain tank regardless of the layout of other devices and members, etc.SOLUTION: In a grain conveyance structure of a combine which has a lifting device 54 for lifting grains from a thresher 3 to a grain tank 4, the lifting device 54 includes a lower conveyance mechanism 55 that extends upward from a grain discharge unit 3A of the thresher 3 and an upper conveyance mechanism 56 that extends upward from the conveyance terminal end portion of the lower conveyance mechanism 55. Either one of the lower conveyance mechanism 55 or the upper conveyance mechanism 56 includes a slat conveyor 62 or a bucket conveyor where grains are lifted by a plurality of conveying elements provided on an endless turning belt, as the endless turning belt turns over rotors provided at both the upper and lower end portions thereof, and the other one includes a screw conveyor 66 for lifting and conveying grains by the turning of a screw 65 extending between the upper and lower end portions thereof.COPYRIGHT: (C)2013,JPO&INPIT【課題】揚送装置の構成に改良を加えることにより、他の機器や部材などの配置に関係なく、穀粒タンクでの穀粒充填率の向上を図れるようにする。【解決手段】脱穀装置3から穀粒タンク4に穀粒を搬送する揚送装置54を備えたコンバインの穀粒搬送構造において、揚送装置54に、脱穀装置3の穀粒排出部3Aから上向きに延出する下側搬送機構55と、下側搬送機構55の搬送終端部から上向きに延出する上側搬送機構56とを備え、下側搬送機構55と上側搬送機構56のいずれか一方を、その上下両端部に備えた回転体にわたる無端回動帯の回動により、無端回動帯に備えた複数の搬送体で穀粒を揚送するスラットコンベヤ62又はバケットコンベヤで構成し、他方を、その上下両端部にわたるスクリュ65の回転によって穀粒を揚送するスクリュコンベヤ66で構成した。【選択図】図6
