| 摘要 |
PURPOSE: A cover opening/closing apparatus for a rotavator is provided to maximize the performance of a flattening process for the paddy field by opening and closing a cover to the upward and downward directions by the rotation angle of a harrow board. CONSTITUTION: A cover opening/closing apparatus for a rotavator comprises the rotavator(20), a bracket(30), a connection frame(40), a harrow board(50), a hydraulic cylinder(60), a cover(70), and a switching member(100). The rotavator is installed on the rear side of a tractor(10). The bracket is installed on one upper side of the rotavator. The connection frame is mounted on one rear side of the bracket to be rotated to the upward and downward directions. The harrow board is combined to the tip-end of the connection frame. The hydraulic cylinder is installed in between the bracket and the harrow board. The cover opens and closes around a hinge-shat(71). |
