| 摘要 |
<P>PROBLEM TO BE SOLVED: To automatically ensure connection between right and left brakes to attain the safety of traveling on a road. <P>SOLUTION: The tractor includes right and left brake pedals juxtaposed right and left in a traveling vehicle body; a brake connecting/releasing means for placing the right and left brake pedals into a connected state or a non-connected state; a lift arm for lifting and turning a rotary tilling apparatus; a work switching dial for switching a work mode into a traveling light work mode and a tilling heavy work mode; a lift arm lifting sensor for detecting the lifted state of the lift arm; and a brake connecting/releasing actuator for switchingly operating the brake connecting/releasing means. The tractor further includes a controller for carrying out the connecting operation of the right-left brake connecting/releasing actuator to place the brake connecting/releasing means in the non-connecting state into a right-left connecting state when the lift arm lifting sensor detects the lifted state of the lift arm to a predetermined height or higher in the state of the work switching dial switching to a work mode other than the tilling heavy work mode. <P>COPYRIGHT: (C)2013,JPO&INPIT |
