| 摘要 |
A caliper-type brake assembly for a bicycle or the like which is manually operable between braking and non-braking conditions including at least one pair of opposing, generally complementarily configured, pivotable, elongate brake arm levers (104, 105). Each brake arm lever having adjacent a first end thereof a bearing surface (116, 117) extending towards the corresponding end of the opposing brake arm lever. Each brake arm lever supports a friction braking pad (110, 111) adjacent its second opposite end which is adapted to be urged with a controllable force against a respective sidewall of a wheel rim (3, 4) of the bicyle. Pivotal support means (108, 109) is included for each brake arm lever. A crank arm (200, 201) with arms of unequal length is mounted for rotation about a pivot (204, 205) at its shorter end. |
