| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a clutch hydraulic mechanism capable of preventing a sense of incongruity to be given to an operator at the time of changing speed. SOLUTION: A check valve 22 is interposed in a piping of working oil to be supplied to an advance side hydraulic clutch 11, an accumulator 24 to accumulate a part of the working oil to be supplied to the hydraulic clutch 11 is provided between the check valve 22 and the hydraulic clutch 11, and a control valve 25 to actuate by the working oil to be supplied to the hydraulic clutch 11 and to hold the working oil accumulated in the accumulator 24 with the check valve 22 is furnished. In this constitution, when speed is changed, pressure of the hydraulic clutch 11 before speed changing is held by the working oil accumulated in the accumulator 23, consequently, it is possible to dissolve delay of recovery of torque by slipping of the hydraulic clutch 11 and to eliminate a sense of incongruity such as torque extracting feeling and shock given to an operator at the time of speed change and reversing feeling on a slope, etc.</p> |
