| 摘要 |
<p>PURPOSE:To operate clutch engagement speed more rapidly as compared with other clutches for delivery rate of a hydraulic pump, by providing selection-free control valves at pressurized oil reserving and delivering positions and providing a connecting mechanism connecting an inching valve and a control valve. CONSTITUTION:An accumulator A is connected to a connecting oil circuit through an oil supply circuit 52 in which a control valve V3 is provided. A control valve V3 is connected to an oil circuit 53, through which pressurized oil from an inching valve V2 is supplied to a control oil chambers 20 and 21, through a connecting oil circuit 54. The control of the control valve V3 is connected to a link type interlocking mechanism 55 for a clutch pedal 48 and an inching valve V2 through a mechanical type connecting mechanism 56, to connect the inching valve V2 and the control valve V3 mechanically. By this, clutches FC and RC can be engaged at their max. set pressure by the inching valve V2, more rapidly as compared with the other clutches for delivery rate of a hydraulic pump.</p> |
