PROBLEM TO BE SOLVED: To provide a reaping device which improves a reaping performance upon overall reaping, and which improves falling adaptive capacity by expanding a working area of a raising lag, while decreasing the production cost of a combine harvester.SOLUTION: The reaping device is composed of a plurality of raising cases (12) on which a driving sprocket (14) is pivotally supported in a higher position, and a driven wheel body (18) is pivotally supported in a lower position, and a lag chain (16) provided with the raising lag (17) which is rolled on the driving sprocket (14) and the driven wheel body (18). The diameter of the driven wheel body (18) of either one of the raising cases (12) is larger than the diameter of the driven wheel bodies (18) of the other raising cases (12).COPYRIGHT: (C)2012,JPO&INPIT【課題】コンバインの製造コストを低減しつつ引起ラグの作用範囲を拡大して、全面刈の際の刈取性能を向上すると共に倒伏適応性能を向上する刈取装置を提供する。【解決手段】駆動スプロケット(14)が上部寄りに軸支されると共に従動輪体(18)が下部寄りに軸支される引起ケース(12)が複数有り、引起ラグ(17)を備えたラグチェン(16)を該駆動スプロケット(14)及び従動輪体(18)に巻き掛ける。何れか一つの引起ケース(12)の従動輪体(18)の直径が、他の引起ケース(12)の従動輪体(18)の直径より大径とされる。【選択図】図3
