PROBLEM TO BE SOLVED: To provide a tiller uniformly leveling the whole surface of a field.SOLUTION: A paddling implement 1 which is an example of the tiller is provided with an implement main body 10 attached to the rear part of a traveling machine body 90 and placed in the middle of the lateral direction and extended working members 30 rotatably attached to the right and left ends of the body. An assistant leveling plate 40 is rotatably attached to each of the right and left ends of the extended working member 30. A second leveling plate 16 and a second extended leveling plate 33 are rotatably attached to the rear part of the implement body 10 and the extended working member 30. A plurality of hollow protrusions 60, 60, 60" protruding upward and each having a notch at the lower part are placed at the back of the second leveling plate 16, the second extended leveling plate 33 and the assistant leveling plate 40 interposing prescribed gaps between the protrusions in lateral direction. The notches and protrusions 60, 60" attached to the second extended leveling plate 33 and the assistant leveling plate 40 are longitudinally extended in plane view in a manner inclined toward the middle part of the second leveling plate 16 to flow the mud water on the field to the middle side of the second leveling plate 16.COPYRIGHT: (C)2007,JPO&INPIT【課題】圃場表面の全てを均平に整地可能な耕耘作業機を提供する。【解決手段】耕耘作業機の一例である代掻機1は、走行機体90の後部に装着され、左右方向の中央部に配置された作業機本体10と、この左右両端部に回動可能に取り付けられた延長作業体30とを備える。延長作業体30の左右方向端部には補助整地板40が回動可能に取り付けられる。作業機本体10と延長作業体30の後部には第2整地板16と第2延長整地板33が回動自在に取り付けられる。第2整地板16、第2延長整地板33、補助整地板40の後部には、下部に切り欠き部を有して上方へ突出する中空の凸部60,60,60が左右方向に所定間隔を有して複数設けられる。第2延長整地板33及び補助整地板40に設けられた切り欠き部及び凸部60,60は、平面視において第2整地板16の中央部側に傾いて前後方向に延び、圃場の泥水を第2整地板16の中央部側に流す。【選択図】図1
