PROBLEM TO BE SOLVED: To provide a levee plastering machine allowing a top place processing rotor to cut the top place in a uniform amount regardless of unevenness of the top place of a field or old levee.SOLUTION: The levee plastering machine includes a top place processing rotor 41 including plural tilling jaws cutting down a top place of an old levee. The rotor is supported rotatably by a top place drive force transmission frame 42, which is turnably connected to a connection shaft of a pretreatment rotor on one side, is freely oscillated in a vertical direction on the other side, and energized downward by an energizing device 35, on the other side so as to rotate. In a rear side of the top place drive force transmission frame 42, a parallel link mechanism 55 is arranged, and a grounding member 50, which contacts a top place of an old levee, is arranged at a tip side of the parallel link mechanism 55. The top place drive force transmission frame 42 constitutes a part of the parallel link mechanism 55. A vertical distance between a bottom face of the grounding member 50 and a rotation locus lower end drawn by a tip of the tilling jaw 44 of the top place processing rotor 41 is uniform.COPYRIGHT: (C)2016,JPO&INPIT【課題】圃場や旧畦の天場の凹凸に拘わらず天場処理ロータによる天場の削り量を一定にする畦塗り機を提供する。【解決手段】畦塗り機は、旧畦の天場を切り崩す複数の耕耘爪を有する天場処理ロータ41を備える。このロータは、前処理ロータの連結軸に一端部が回動自在に接続されて他端側が上下方向に揺動自在であり附勢装置35によって下方へ附勢される天場動力伝達フレーム42の他端部に回転可能に支持される。天場動力伝達フレーム42の後方側には平行リンク機構55が設けられ、この先端側に旧畦の天場に接地される接地部材50が設けられる。天場動力伝達フレーム42は、平行リンク機構55の一部を構成し、接地部材50の底面と天場処理ロータ41の耕耘爪44の先端部が描く回転軌跡下端との間の上下距離は一定である。【選択図】 図4
