| 摘要 |
PURPOSE: A harrow for a tractor is provided to perform a leveling work of soil while varying rotation thereof according to the outside pressure and soil condition. CONSTITUTION: A harrow for a tractor comprises: a middle frame(40) which is connected to the other side of a hiller frame through a connecting bar; a bracket(50) which is projected rearward in the rear central part of the middle frame; and a ball case which is equipped with a ball stud and rotationally moves in the state of surrounding the ball stud in the front of a harrow plate(20). In the upper side and lower side of the ball case, a stopper is formed restricting the swing angle of the harrow plate. |
