| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a work vehicle capable of preventing slipping. <P>SOLUTION: The work vehicle has an engine 10 generating rotational power; a hydraulic stepless transmission (HST) 20 having a hydraulic pump 22 and a hydraulic motor 24 and changing the speed of rotation power generated by the engine 10 and transmitting it to driving wheels 40; an actuator 73 for adjusting the transmission ratio of the HST 20, by changing a tilt angle of a movable swash plate 22a of the hydraulic pump 22; a shift lever (speed setting means) 50 for setting a rotation speed of a motor output shaft 25, of the which speed is changed by the HST 20; and a control device 60 for controlling the operation of the actuator 73 so that the rotational speed of the motor output shaft 25 is changed by the HST 20 at a predetermined rate of changeβ, until the rotational speed (preset rotation speed) set by the shift lever 50 is reached. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
