| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify the lifting control and rolling control of a seedling planter to easily control the accuracy and sensitivity of inclination detection. Ž<P>SOLUTION: There is provided the seedling planter having a lifting actuator 15 for lifting or lowering both right and left wheels 10 in the same direction to control the vertical height of the machine frame, a rolling actuator 17 for changing the height of the wheel 10 on one side to control the lateral inclination of the machine frame, and right and left planting hoppers 3 which are vertically moved to plant seedlings in a field. The planter is characterized by disposing a right elevation sensor 5R and a left elevation sensor 5L which ground the right and left planting surfaces of the field to detect the height of the machine frame from the field, operating the lifting actuator 15 with the right elevation sensor 5R and the left elevation sensor 5L, disposing a vehicle body posture controller for detecting the lateral inclination of the machine frame with a lateral inclination sensor 35 to operate the rolling actuator 17, and controlling the rolling actuator 17 so that both the right elevation sensor 5R and the left elevation sensor 5L ground. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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