| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a working vehicle having a hydraulic control device in which a hydraulic clutch for engaging and disengaging a transmission by interlocking with a stepping amount of a clutch pedal does not effect the operating feeling of the clutch pedal. <P>SOLUTION: A half-clutch operation is allowed by changing the pressure of an advancing/retreating hydraulic clutch D according to an operation position of the clutch pedal 119, and thrust of a clutch piston 78 is generated by the effect of centrifugal force of the hydraulic clutch D generated according to the engine speed or the rotational number of a clutch input shaft 2. Therefore, this traveling vehicle is driven by hydraulic pressure for engaging and disengaging the hydraulic clutch D added with pressureαin which the effect of the thrust is corrected. In this way, when a clutch operation is performed by force with the thrust by the centrifugal force added to the torque of the input shaft 2 generated by hydraulic pressing pressure according to the engine speed, good operating feeling can be obtained. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
