| 摘要 |
A hydraulic pressure brake device includes a master cylinder, a brake operating member, a master piston, a booster, a first auxiliary piston, a pressure transmitting chamber, a valve device, and a second auxiliary piston. The hydraulic pressure brake device further includes an output member and a rod. The output member is provided in the booster for transmitting the boosting power generated by the booster to the first auxiliary piston when the movement of the master piston is assisted by the booster. The rod is provided in the second auxiliary piston for transmitting the operating force applied to the brake operating member to the valve device and for opening the valve device when the movement of the master piston is not assisted by the booster.
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