| 摘要 |
A coupling for bicycle hydraulic disc brake includes, in combination a housing comprising a stepped-diameter channel having a threaded opening, and a hollow, staged cylindrical member having an inner end disposed at an innermost shoulder of the channel; a hollow cylindrical element formed of metal and comprising an annular groove on an outer surface, and two annular shoulders with the groove formed therebetween wherein the cylindrical element has an inner end disposed at a shoulder adjacent to the innermost shoulder of the channel; a hollow adjustment screw adapted to secure to the threaded opening; and a brake fluid tube slidably disposed through the adjustment screw and the cylindrical element. Driving the adjustment screw will compress the cylindrical element with the groove being completely compressed by the shoulders, the channel being not compressed by the cylindrical element, and the tube being in contact with the cylindrical element.
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