PROBLEM TO BE SOLVED: To provide a ridger capable of preventing soil cultivated from the upper part of a shaping plate in the center of the left and right to go over backward and prevent from spilling at the time of ridger work. SOLUTION: The bottom of the groove between the ridges and the slope of the ridge are shaped by the lower side and the side edge of the elastically bendable shaping plate that moves after plowing, and a plate shape that supports the shaping plate. Is a ridger equipped with the support frame on the lower side in the traveling direction of the shaping plate, wherein the shaping plate projects more than the supporting frame on the bottom surface of the groove and the slope of the ridge. The shaping plate has a shape that narrows downward. In addition, the support frame is provided with a center plane in the left-right direction that is orthogonal to the moving direction, and the center plane has a shape that is wider toward the lower side in the up-down direction, and further, of the center plane that is orthogonal to the moving direction of the support frame. On both outer sides, two sided planes are provided which incline toward the lower side in the moving direction toward the outer side. [Selection diagram] Fig. 6【課題】畝立作業時に、左右中央の整形板の上部から耕耘した土が後方へ乗り越えてこぼれないようにすることが可能な畝立器を提供する。【解決手段】耕耘した後を移動する弾性屈曲可能な整形板の下辺および側端辺とで畝間の溝の底面および畝の法面を整形するように構成するとともに、整形板を支持する板状の支持枠を整形板の進行方向下手側に備える畝立器であって、前記整形板は、溝の底面と畝の法面において前記支持枠よりも突出している。前記整形板は、下方ほど狭まる形状である。また、前記支持枠には、移動方向と直交する左右方向の中央平面を設け、前記中央平面は、上下方向で下方ほど幅広の形状であり、さらに前記支持枠の移動方向と直交する中央平面の両外側には、外側になるに従って移動方向下手側に傾斜する両側平面を設けた。【選択図】図６
