| 摘要 |
A bicycle brake assembly includes a caliper body and an anti-dead lock device. The caliper body has a vertical passage to permit extension of a brake disk of a wheel, a fluid reservoir replete with a hydraulic fluid, and two brake-pad mounting pieces. Two brake pads are mounted respectively on the brake-pad mounting pieces of the caliper body, and are operably associated with the fluid reservoir in such a manner that when a pressure is applied on the fluid reservoir, the brake pads clamp the brake disk. The anti-lock device includes a cylinder defining a chamber, and a piston member disposed sealingly and movably in the chamber to divide the same into first and second partitions. The first partition is replete with the hydraulic fluid, and is in fluid communication with the fluid reservoir. An urging member is disposed in the second partition and abuts against the piston member. The piston member moves in a direction from the first partition toward the second partition when the pressure applied on the hydraulic fluid in the fluid reservoir overcomes an urging force provided by the urging member, thereby reducing an effective pressure acting on the hydraulic fluid in the fluid reservoir.
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