PROBLEM TO BE SOLVED: To provide a combine-harvester capable of reducing a transverse working load of an operator for transversely working a levee of a large undulation.SOLUTION: A blade device (5C) is disposed at the forward end portion of the lower wall of an auger device (5B) of a mowing pretreatment device (5), and a grounding body (15) for detecting the ground height of the moving pretreatment device (5) is disposed at the posterior of the blade device (5c). A lifting cylinder (11) connected to the moving pretreatment cylinder device (5) is driven in accordance with the detection value of the grounding body (15), thereby to perform an elevation control to keep the ground height of the moving pretreatment cylinder device (5). An elevation control is stopped in the case where a number (N), at which a lifting lever (12) of the maneuver lever (8) is operated to move the moving pretreatment cylinder device (5) manually in vertical direction, becomes more than a set number (N1).SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】操縦者の起伏が大きな畝を横切って作業する横刈り作業負担を減らすことができるコンバインを提供する。【解決手段】刈取前処理装置(5)のオーガ装置(5B)の下壁の前端部に刈刃装置(5C)を設け、刈刃装置(5C)の後側に刈取前処理装置(5)の地上高さを検出する接地体(15)を設け、接地体(15)の検出値に応じて刈取前処理装置(5)に連結された昇降シリンダ(11)を駆動して、刈取前処理装置(5)の地上高さを一定に維持する昇降制御を行ない、操縦部(8)の昇降レバー(12)を操作して刈取前処理装置(5)を手動で上下方向に移動させた回数(N)が設定回数(N1)よりも多くなった場合に昇降制御を停止する。【選択図】図6
