| 摘要 |
<p>PURPOSE:To improve reliability of a braking function by minimizing mechanical joint parts by interlocking a front wheel brake with a rear wheel brake by allowing to use an oil pressure for substituting them. CONSTITUTION:When an oil pressure is applied from an inlet 19, first piston is actuated to allow to feed a compressed oil from an exit 20. When second piston 3 is compressed, first piston 2 which is obstructed by a fixed stopper 7 may not actuate by permitting only second piston 3 to forward by compressing a coil spring 12, causing to close a communicating passage 9 by a valve 14 for discharging the compressed oil to the exit 20. When the oil pressure is applied to the inlet 19 and the second piston 3 is comprssed as well, the pressure is applied from the exit 20 in the case of the pressure of second compressed chamber 5 being higher than the pressure of first compressed chamber 4, in the reverse condition the piston 2 being displaced toward the compressed chamber 5, and feeding the compressed oil from the exit 20 by equalizing the pressure of both compressed chambers.</p> |
