| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lift controller for a working implement of a working vehicle which surely avoids backward movement of a machine body while a working implement is lowered, and avoids the damage of a working implement. <P>SOLUTION: A control portion 19 liftably controls the working implement 3 liftably coupled to the back part of the machine body. The control portion 19 includes: a position controller for liftably controlling the working implement 3 according to the operation position of a position control lever 17; a backup control unit for controlling the lifting of the working implement 3 to a predetermined lifted position according to the backward movement or backward movement operation of a traveling machine body 1; and a quick-up controller for controlling the lifting of the working implement 3 to a predetermined lifted position according to the lifting operation of a quick-up lever 9, and controlling the lowering of the working implement 3 to a predetermined lowered position according to the lowering operation of the quick-up lever 9. While the working implement 3 is lifted by the backup controller, the control of lowering the working implement 3 by the quick-up lever 9 is disabled, until the backward movement or backward movement operation of the traveling machine body 1 is released. <P>COPYRIGHT: (C)2013,JPO&INPIT |
