| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a levee plastering machine making constant the cutting amount of a levee crown by a levee crown treatment rotor regardless of the unevenness of the levee crown of an old levee or a field. <P>SOLUTION: The levee plastering machine includes the levee crown treatment rotor 41 having a plurality of tilling claws for cutting through the levee crown of the old levee. The rotor is rotatably supported to the other end of a levee crown power transmission frame 42 with one end turnably connected to a connecting shaft of the treatment rotor and with the other end side vertically swingable and energized downward by an energizing apparatus 35. The rear side of the levee crown power transmission frame 42 is provided with a parallel link mechanism 55, and the tip side is provided with a grounding member 50 grounded on the levee crown of the old levee. The levee crown power transmission frame 42 constitutes a part of the parallel link mechanism 55, and a vertical distance between the bottom face of the grounding member 50 and the lower end of a rotating locus described by the tip of the tilling claw 44 of the levee crown treatment rotor 41 is constant. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
