PROBLEM TO BE SOLVED: To solve a problem, that clods are invaded into a roller portion equipped in an implement, and are not discharged to increase a traction force and lower the efficiency of the work, due to the increase in the weight of the roller portion, when a rough plowing work is carried out with a rough plowing implement.SOLUTION: There is provided a rough plowing implement, characterized by disposing a mechanism in which bars not rotated together with a roller without relating to rotation in the equipped roller are disposed, whereby clods invaded in the roller contact with the bars to finely divide the clods, or contact with the bars by the rotation of the roller to discharge the invaded clods. Thereby, the implement can be pulled in improved working efficiency and even in a small pulling force.COPYRIGHT: (C)2010,JPO&INPIT【課題】粗耕起作業機を用いての粗耕起作業を行う場合、作業機に装備されたローラ部へ土塊が侵入して、排出されず重量の増加による牽引力が増え、作業効率が低下してしまう。【解決手段】粗耕起作業機において、装備したローラ内の回転にかかわりなく、ローラとともに回転しないバーを設け、ローラ内へ侵入する土塊をバーに当てて土塊を細分化したりまた、ローラの回転により土塊をバーに当てることで、侵入した土塊を排出する機構を設けて作業効率の向上を図り、少ない牽引力でも作業機を牽引できる構成をもつ作業機を製作した。【選択図】 図9
