PROBLEM TO BE SOLVED: To arrange ridge-forming disks so as to be shifted front and rear and to superimpose each other in a rear face view and to form one groove between right/left ridges.SOLUTION: A ridge-forming unit 30 is configured by attaching a right/left pair of disk-shaped ridge-forming disks 26 on a support body 20 which can be attached so as to change a position front/rear, up/down, and right/left. A ridge-forming machine 1 includes plural ridge-forming units 30, 30 mounted in a right/left direction in a rear part of a tractor 3 serving as a traction work vehicle. The plural ridge-forming units 30, 30 are arranged while shifted in a front/rear direction alternately.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】畦成形ディスクを前後ずらせて配置し、後面視で重複するように配置して、左右の畦の間にはひとつの溝が形成されるようにする。【解決手段】左右一対の円板状の畦成形ディスク26を、前後上下左右に位置調整可能に取付可能とする支持体20に取り付けて畦成形ユニット30を構成し、牽引作業車となるトラクタ3の後部に複数の畦成形ユニット30・30・・・を左右方向に装着する畦成形機1であって、複数の前記畦成形ユニット30・30・・・は前後方向に交互にずらせて配置されるようにした。【選択図】図2
