PROBLEM TO BE SOLVED: To provide a combine including a grain tank having a lage storage capacity, capable of conveying grains easily.SOLUTION: A combine includes: an upstream side grain fixed-amount delivery device (81A) arranged on a position on the upstream side in the air sending direction between the grain tank (5) and the grain conveying air path (4), for receiving grains in a grain tank (5) from an upstream side reception port (89A) and supplying the grains into a grain conveying air path (4) and a downstream side grain fixed-amount delivery device (81B) arranged on a position on the downstream side in the air sending direction between the grain tank (5) and the grain conveying air path (4), for receiving grains in the grain tank (5) from a downstream side reception port (89B) and supplying the grains into the grain conveying air path (4). A mouth width (91A) of the upstream side reception port (89A) is formed larger than a mouth width (91B) of the downstream side reception port (89B).COPYRIGHT: (C)2014,JPO&INPIT【課題】大貯留容量のグレンタンクを備え、穀粒を容易に搬送できるコンバインを提供する。【解決手段】グレンタンク(5)と穀粒搬送風路(4)の間における送風方向上手側の位置に、グレンタンク(5)内の穀粒を上手側繰入れ口(89A)から繰入れて穀粒搬送風路(4)に供給する上手側穀粒定量繰出装置(81A)を配置し、グレンタンク(5)と穀粒搬送風路(4)の間における送風方向下手側の位置に、グレンタンク(5)内の穀粒を下手側繰入れ口(89B)から繰入れて穀粒搬送風路(4)に供給する下手側穀粒定量繰出装置(81B)を配置し、上手側繰入れ口(89A)の口幅(91A)を、下手側繰入れ口(89B)の口幅(91B)よりも大きく形成することにより解決される。【選択図】図5