PROBLEM TO BE SOLVED: To achieve a structure of a grain collection tank of a combine harvester that ensures strength of a front wall of a resin tank body by improving internal visibility by enlarging a window area of a transparent window.SOLUTION: The grain collection tank includes the transparent window 18 composed of a transparent resin material at a tilted surface by forming the tilted surface of which an upper part of the front wall of the resin tank body 12 is higher rearward. The transparent window 18 is formed into the shape as expanding forward from the tilted surface.COPYRIGHT: (C)2012,JPO&INPIT【課題】透視窓の窓面積を大きくして内部の視認性を高めながら樹脂製のタンク本体の前壁の強度を確保できるコンバインの穀粒回収タンク構造を実現する。【解決手段】樹脂製のタンク本体12の前壁上部に後側ほど高くなる傾斜面を形成し、傾斜面に透明樹脂材からなる透視窓18を付設する。透視窓18を傾斜面から前方に膨出した形状に形成する。【選択図】図3
