| 摘要 |
The present invention provides a brake fluid pressure generator comprising a barometric pressure booster and a master cylinder interlocked to each other at an interlocking portion which has a stepped configuration. A return spring is attached to the stepped portion of the interlocking portion. A stopper is fixed to the large diameter part of the interlocking portion. The return spring has a diameter larger than the small diameter part of the interlocking portion. Because the interlocking portion comes inside the return spring when they come closer, the overall length of the master cylinder and the barometric pressure booster is made smaller. Configuration of the return spring remains simple and the number of members is maintained small.
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