| 摘要 |
<p>PURPOSE: To simplify a clutch operation mechanism by providing a switch for operating a solenoid valve on the pedal connecting mechanism of a decelerator, operating a power shift transmission via the solenoid valve interlockingly with the depression of a pedal, and decreasing the hydraulic pressure on a forward or reverse clutch. CONSTITUTION: When a decelerator pedal 40 is depressed, a shaft 48 is rotated CW, and a third bell crank 49 is rotated in the same direction. A fourth bell crank 50 is displaced toward the third bell crank 49 and is rotated CW. When a fuel injection control lever 54 reaches an idle position, the third bell crank 49 is separated from the fourth bell crank 50 to close an electric switch 70. A solenoid valve 136 is operated by the closing action of the electric switch 70. The modulation accumulator 118 of a power shift transmission is coupled to a sump 102, the hydraulic pressure on a forward or reverse clutch is decreased, and a slip appears if braking force is applied to a vehicle.</p> |
