PROBLEM TO BE SOLVED: To suppress a grounding body from becoming an obstacle to an operator while simplifying switch operation to switch a molded plate to be used and not used.SOLUTION: A grounding body 11 and a molded body 12 are configured to freely swing around a shaft center along a lateral width direction of a traveling machine body 1 in a first posture state of bringing the grounding body 11 into a non-operation posture by making the grounding body 11 intersect with the molded body 12 in a side view so that a lower end side part of the grounding body 11 is positioned in front of the molded body 12 being in an operation posture for pressing soil having been plowed by a plowing rotor 10, and in a second posture state of bringing the grounding body 11 into an operation posture by making the grounding body 11 intersect with the molded body 12 in the side view so that the lower end side part of the grounding body 11 is positioned below the molded body 12 being in a non-operation posture for retracting to a position higher than in the operation posture.COPYRIGHT: (C)2014,JPO&INPIT【課題】成形板を使用する場合と使用しない場合とを切り換える切換作業の簡素化を図りながら、接地体が作業者の邪魔になるのを抑制する。【解決手段】接地体11及び成形体12は、耕起ロータ10で耕起した土を押圧する作業姿勢の成形体12に対して、接地体11の下端側部位が成形体12よりも前方側に位置するように側面視で接地体11と成形体12とを交差させて接地体11を非作業姿勢とする第1姿勢状態と、作業姿勢よりも上方側に退避した非作業姿勢の成形体12に対して、接地体11の下端側部位が成形体12よりも下方側に位置するように側面視で接地体11と成形体12とを交差させて接地体11を作業姿勢とする第2姿勢状態とに走行機体1の横幅方向に沿う軸心周りに揺動自在に構成されている。【選択図】図1
