Combine harvester

The combine harvester of the utility model is provided with a threshing device used for threshing harvested grain stalks; and a grain tank (11) for storing grains obtained by the threshing treatment of the threshing device. The grain tank (11) can swing around a swing axis extending in the vertical direction to be opened and closed. A downward narrowing section (11a) having a downward narrowing shape is formed at the lower part of the grain tank (11). And a handrail (15) for opening and closing the grain tank (11) in a swinging manner is arranged at the transverse outer side part of the downward narrowing part (11a). 本实用新型的联合收割机具有：脱粒装置，对收割谷秆进行脱粒处理；以及谷粒箱(11)，存储经脱粒装置的脱粒处理获得的谷粒。谷粒箱(11)能够绕沿着上下方向延伸的摆动轴心摆动开闭。在谷粒箱(11)的下部形成有呈向下变窄形状的向下变窄部(11a)。在向下变窄部(11a)的横向外侧部设有用于对谷粒箱(11)进行摆动开闭操作的扶手(15)。