| 摘要 |
PURPOSE: A harrow for tractor is provided, which a harrow board can keep right and left horizontality on surface of the paddy field and which enables a movement of the harrow board by extending a telescopic cylinder. CONSTITUTION: A harrow for tractor comprises: a frame(20) in which a shear is hinge-coupled at upper part of a rotary(B) for a tractor(A); a harrow board(50) combined in the back end of frame; a telescopic cylinder(10) which raises the harrow board and in which the shear is hinge-coupled at the upper part of rotary and the back end is hinge-coupled in the harrow board; and a subframe which is included in between frame and harrow board and in which the upper side is combined in the back end bottom plane of frame and the back end is combined in the harrow board. |
