| 摘要 |
PROBLEM TO BE SOLVED: To provide a turning control device for a working vehicle which restrains generation of uncomfortable feeling at the time of switching from a linear motion state to a left turning state or a right turning state. SOLUTION: A transmission state switching means freely switches to a turning preparatory state for transmitting each of a shift output of a continuously variable transmission for linear motion and a shift output of a continuously variable transmission for turning to a pair of left/right traveling devices respectively, or transmitting the shift output of the continuously variable transmission for linear motion to a pair of the respective left/right traveling devices while transmitting the shift output of the continuously variable transmission for turning to a traveling device on the turning direction side of a pair of the left/right traveling devices. When a control means is commanded by a turning commanding means to turn left, it carries out a turning preparatory control processing for left turning for once operating to the turning preparatory state before carrying out left-turning control processing. When the control means is commanded by the turning commanding means to turn right, it carries out a turning preparatory control processing for right turning for once operating to the turning preparatory state before carrying out right-turning control processing. COPYRIGHT: (C)2006,JPO&NCIPI
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