PROBLEM TO BE SOLVED: To easily perform ground working along an excavated groove, by forming a guide part to be inserted in the excavated groove in order to be guided with groove walls so that the working position of the ground working may be almost aligned with the width center of the excavated groove.SOLUTION: A ground working apparatus is provided, which includes a ridging part 2 attached to a tractor T straddling an excavated groove H continuously excavated to be long and narrow so as to ridge and mold on the excavated groove H, and a ridge working part 3 performing ground working D to a molded ridge U. A guide part 4 to be inserted in the excavated groove H to be guided with groove walls W is formed to project downward from the ridging part 2 or the ridge working part 3 so that a working position S in the width direction of the ridge U and of the ridge working part 3 may be almost aligned with the width center of the excavated groove H.COPYRIGHT: (C)2011,JPO&INPIT【課題】掘削溝に挿入されて溝壁に案内されるガイド部を設け、対地作業の作業位置を掘削溝の幅中心に略合わせることで、掘削溝に沿った対地作業を容易に行えるようにする。【解決手段】連続して掘削された細長状の掘削溝Hに跨って走行するトラクタTに装着されていて、掘削溝H上で畝立て成型を行なう畝立て作業部2と、成型された畝Uに対地作業Dを行う対畝作業部3とを備えている。対畝作業部3による畝Uの幅方向での作業位置Sを掘削溝Hの幅中心に略合わせるべく、掘削溝Hに挿入されて溝壁Wにより案内されるガイド部4を畝立て作業部2又は対畝作業部3から下方に突出して設けている。【選択図】図1
