| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the empty planting of seedlings in automatic lifting control on turn. <P>SOLUTION: A rice transplanter 1 includes a planting portion 3 capable of being lifted and lowered upward and downward, a planting clutch 50 for controlling the connection or disconnection of the planting portion 3 to a driving force, and a control portion for performing automatic lifting or lowering control on turn for controlling the lifting or lowering of the planting portion 3 and the planting clutch 50 on the turn of the vehicle body. On the automatic lifting or lowering control on turn, the control portion automatically lowers the planting portion 3 at a prescribed timing during the turn or after the turn. The control portion controls to connect the planting clutch 50 to restart the planting of seedlings, when the vehicle body reaches a planting-restarting position corresponding to a planting-interrupting position before the start of the turn, after the finish of the turn. The control portion changes a timing for lowering the planting portion 3 in response to the travel speed of the vehicle body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
