| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that time and effort are required for adjustment work and operation of planting work is complicated, because the height positions of non-operational positions of a planting operation machine is manually adjusted with a dial operation tool, and it is necessary to manually adjust the height positions of working positions each time on the basis of the travelling speed.SOLUTION: A transplanter includes a controller 30 which conducts, with an actuator, lift control of a planting working unit 6 connected to a rear part of a travelling machine body 3. The controller 30 starts automatic lift control to lower the planting working unit 6 from a non-working position to a working position corresponding to complete of a swivel operation after the planting working unit 6 is raised to the non-working position, which is conducted in response to start of the swivel operation, the automatic lift control being started in response to detection of a steering operation or action by detection means. The transplanter includes vehicle speed detection means 32 to detect vehicle speed. The controller 30 conducts the automatic lift control so that the non-working position, when the vehicle speed detected by the vehicle speed detection means 32 is in a high speed range, is at a position lower than a non-working position when the speed is at a low speed range. |
