PROBLEM TO BE SOLVED: To settle the problem that, through a space between a rotor driving case and the right and left directional ends of a ground leveling rotor, that is, the right and left directional ends of a ground leveling plate, trashes such as straw invade into the driving shaft side and the invaded trashes are liable to twine on a driving shaft or a fitting hub part by rotation of the driving shaft, and removing work of the twined trashes is annoying in maintenance or the like.SOLUTION: Driving shafts 70a, 70b are provided in the right and left direction to project them from driving shaft bearings 99 of a rotor driving case 73, a ground leveling rotor rotating by driving of the driving shafts 70a, 70b is composed of fitting hubs 104a for fitting to the driving shaft 70a, 70b side, ground leveling plates 104b contacting to the soil surface to perform ground leveling action, and connecting parts 104c connecting the fitting hubs 104a with the ground leveling plates 104b, a trash twining preventing part 95 is set on the rotor driving case 73 side so as not to move, and the trash twining preventing part 95 is set on the position in front of the ground leveling plates 104b and overlapping with the right and left directional ends of the ground leveling plates 104b in the front view of the machine body.COPYRIGHT: (C)2011,JPO&INPIT【課題】 整地ロータの左右方向端部すなわち整地板の左右方向端部とロータ伝動ケースの間から駆動軸側へ藁等の夾雑物が侵入し、駆動軸の回転により、侵入した夾雑物が駆動軸あるいは取付ボス部に巻き付くおそれがあり、メンテナンス等で巻き付いた夾雑物を取り除く作業が煩わしい。【解決手段】 駆動軸70a,70bをロータ伝動ケース73の駆動軸軸受部99から突出させて左右方向に設け、該駆動軸70a,70bの駆動により回転する整地ロータを、駆動軸70a,70b側に取り付けるための取付ボス部104aと、土壌面に接地して整地作用を施す整地板104bと、取付ボス部104aと整地板104bを連結する連結部104cから構成し、ロータ伝動ケース73側に夾雑物巻付防止部95を移動しないように設け、該夾雑物巻付防止部95を、整地板104bの前方で且つ機体の正面視において整地板104bの左右方向端部と重複する位置に配置した。【選択図】図7
