| 摘要 |
PROBLEM TO BE SOLVED: To carry out the positioning of a float supporting shaft in the right and left direction without using members such as a slip-off stopping pin, a stopper ring, etc., in a sulky type rice transplanter supporting a soil preparation float in a vertically shakable manner on the tip of a float supporting arm extended in a cantilever state from the float supporting shaft transversely installed on a seedling planting apparatus. SOLUTION: A float height can be changed and adjusted by rotating and adjusting the float supporting shaft 15. A recessed part 22 formed on a base part of the float supporting arm 19 is connected to a flange part 7b for connection in a feed case of right and left block construction to obstruct the right and left movement of the float supporting shaft 15 by the connection.
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