An object of the present invention is to provide a combine having a grain tank capable of easily performing maintenance work. A combine 1 provided with a grain tank 8 for storing harvested grains in a body thereof forms a storage space Q for the grain tank 8, has a tank body 30 having an opening P on a side surface, and an opening. It includes a side wall portion 50 that can change the state of the portion P between a fully closed state and a fully open state, and a sensor 20 that detects an unclosed state in which at least a part of the opening P is open. [Selection] Figure 2【課題】メンテナンス作業を容易に行うことが可能な穀粒タンクを備えたコンバインを提供する。【解決手段】収穫した穀粒を貯留する穀粒タンク８を機体に備えたコンバイン１は、穀粒タンク８の貯留空間Ｑを形成し、側面部に開口部分Ｐを有するタンク本体３０と、開口部分Ｐの状態を全閉状態と全開状態との間で変更可能な側壁部５０と、開口部分Ｐの少なくとも一部が開いている状態である非閉状態を検出するセンサ２０と、を備える。【選択図】図２
