| 摘要 |
A hub brake for a bicycle mainly comprises a fixed brake disc, axial displacement brake disc and brake member. The axial displacement brake disc is driven by the brake member to yield axial displacement, thus realizing axial hub braking through frictional abutting of the fixed brake disc. As the fixed brake and axial displacement brake disc are both of simplified disc or block structure, the manufacturing process can be streamlined for mass production, while convenient and efficient assembly from one end of the hub is made possible. As for the ringed brake interface formed between the fixed brake disc and axial displacement brake disc, its friction area is not less than that of conventional drum or caliper brake interface. Hence, the hub brake components of the bicycle could be greatly simplified, and the weight and assembly space could be reduced for easier production, convenient assembly and satisfactory braking performance.
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