PROBLEM TO BE SOLVED: To provide a plow inversion regulating device, capable of surely spot-inverting back the gravel soil plowed by a moldboard to the bottom of the original gravel gutter by a simple structure.SOLUTION: A plow inversion regulating device includes: a gravel soil inverting extension board with a curved surface which is provided in the rear of a vertical cutting blade and a moldboard, and an inversion regulating blade which is integrally connected to a backward lower portion of the inverting extension board, the inversion regulating blade returning the gravel soil being plowed to the same phase. The moldboard has a twisting portion, the tail of the moldboard is converged to a sideboard side as viewed from an advancing direction, and the upper end of the inverting extension board has at least a plane exceeding the center of a plowing width.COPYRIGHT: (C)2014,JPO&INPIT【課題】 本発明は簡単な構成により、はつ土板で耕起されたレキ土を元のレキ溝底に確実にその場反転するプウの反転調整装置を提供するものである。【解決手段】垂直切断刃と発土板の後方に曲面上のレキ土反転延長板を設け、一方、この反転延長板の後方下部に、耕起されつつあるレキ土を同一相に戻す反転調整羽を一体に連結するとともに、前記はつ土板は捻転部を有し、進行方向から見てはつ土板羽尻は側板側に収束して、且つ反転延長板の上端が少なくも耕起幅中心を越えた面を有するプラウ反転調整装置である。【選択図】図1
