PROBLEM TO BE SOLVED: To enhance the rate of work progress by enabling a levee to be tightened enough by a continuous levee shaping work by a front rotary levee shaper and a rear rotary levee shaper, and to get the convenience in nonuse such as at move or at custody, etc. by enabling the rear rotary levee shaper to be retracted from its lower work position to its upper retracted position by a retracting mechanism.SOLUTION: A machine frame 4 is coupled with a travel machine 1 by a coupling mechanism 2, and the machine frame is provided with a banking mechanism 9, which has a rotary banking body 8 capable of banking mud near a levee W on an old levee. The rotary banking body is provided with a levee shaping mechanism 7 which has a rotary levee shaper capable of shaping the old levee by rotation in the backward position in the advance direction. As the levee shaping mechanism, it is provided with a front rotary shaper 10 which can shape the levee by rotation in the backward position in the advance direction of the rotary banking body, and also is provided with a rear rotary levee shaper 11 which can shape the levee by rotation in a backward position in the advance direction of the rotary levee shaper. It is provided with a retracting mechanism 12 which retracts the rear rotary levee shaper from its lower work position V to its upper retracted position Z.COPYRIGHT: (C)2013,JPO&INPIT【課題】前回転整畦体及び後回転整畦体による連続的な整畦作業により畦を充分に締圧することができて作業進行速度を高めることができ、かつ、後回転整畦体を退避機構により下方作業位置から上方退避位置に退避させることができ、移動時や保管時等の不使用時における利便性を得ることができる。【解決手段】走行機体1に連結機構2により機枠4を連結し、機枠に畦W際の泥土を旧畦上に盛上可能な回転盛土体8をもつ盛土機構9を設け、回転盛土体の進行方向後方位置に旧畦を回転整畦可能な回転整畦体をもつ整畦機構7を設けてなり、整畦機構として、回転盛土体の進行方向後方位置に畦を回転整畦可能な前回転整畦体10を設けると共に前回転整畦体の進行方向後方位置に畦を回転整畦可能な後回転整畦体11を設け、後回転整畦体を下方作業位置Vから上方退避位置Zに退避動作させる退避機構12を設けてなる。【選択図】図1
