PROBLEM TO BE SOLVED: To provide a ridge-coating machine capable of forming a ridge side face having uniform hardness.SOLUTION: The ridge-coating machine is equipped with a banking means for banking soil, and a ridge side face-former 27 in a nearly truncated cone shape, for forming the ridge side face by compacting the banked soil while rotating by centering a rotary center axis X. The ridge side face-former 27 is equipped with a plurality of operating surface parts 31 radially positioned by centering the rotary center axis. Each of the operating surface parts 31 has a contacting face 32 at the rear side in the rotation direction, and a noncontact face 33 at the front side in the rotation direction. The boundary line A at the radius-reducing side which is a boundary line between one contact face 32 of the operating surface part 31 and the other noncontact face 33 of the operating surface part 31 is positioned along the radial direction of the ridge side face-former 27, and the boundary line B at the radius-enlarging side which is a boundary line between one contact face 32 of the operating surface part 31 and the other noncontact face 33 of the operating surface part 31 is positioned so as to be shifted in the rotation direction side based on the radial direction of the ridge side face-former 27.COPYRIGHT: (C)2008,JPO&INPIT【課題】硬さが均一な畦側面を形成できる畦塗り機を提供する。【解決手段】畦塗り機は、土を盛り上げる盛土手段と、回転中心軸線Xを中心として回転しながら盛土を締め固めて畦側面を形成する略円錐台状の畦側面形成体27とを具備する。畦側面形成体27は、回転中心軸線を中心として放射状に位置する複数の作用面部31を備える。各作用面部31は、回転方向後側に接触面32を有し、回転方向前側に非接触面33を有する。畦側面形成体27の縮径側では、一方の作用面部31の接触面32と他方の作用面部31の非接触面33との境界線である縮径側境界線Aが畦側面形成体27の径方向に沿って位置する。畦側面形成体27の拡径側では、一方の作用面部31の接触面32と他方の作用面部31の非接触面33との境界線である拡径側境界線Bが畦側面形成体27の径方向に対して回転方向側にずれて位置する。【選択図】図2
