| 摘要 |
PROBLEM TO BE SOLVED: To provide a rice transplanter equipped with a land grader that is less apt to entwine with straws, impurities, or the like, during land grading. SOLUTION: The rice transplanter is equipped with the land grader freely liftably and lowerably connected to the rear of a traveling part and mounted for leveling the land at the front of a planting part, and in the right and the left width direction of the planting part by rotating movement and the land grader is composed of a rotating supporting shaft extended in the right and the left width direction of the planting part and rotors for land grading integrally mounted adjacently to the rotating supporting shaft. In the rice transplanter, the rotors 40 for land grading are formed into a cross-sectional polygonal shape, and leveling plates 40P are installed protrusively from the corner parts of the outer peripheral surface 40c toward the rotation direction in each flat surface of the outer peripheral surface of the rotors 40 for the land grading so as to protrude the right and the left ends of the leveling plates 40P to the outer lateral side of the width of the rotors 40 for land grading. Thereby, a recessed spatial part 40S is formed by enclosing the right and the left ends of the leveling plates 40P and the lateral end faces of the rotors 40 for land grading and closing bodies 70 are mounted on the inner lateral faces of the right and the left ends of each of the leveling plates 40P so as to close the recessed spatial part 40S. COPYRIGHT: (C)2009,JPO&INPIT
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