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    • 110. 发明专利
    • RIM OF WHEEL FOR BICYCLE
    • JPH0565002A
    • 1993-03-19
    • JP5464792
    • 1992-03-13
    • CAMPAGNOLO SPA
    • GUIDO MIKEROTSUTEI
    • B60B21/08
    • PURPOSE: To provide a rim of a wheel for bicycles having side parts in a shape which makes it possible to wear a brake block uniformly and to maintain a high braking force. CONSTITUTION: This wheel rim has a transverse section which comprizes central parts 3, 4 facing in the direction of the axis of the wheel and side parts 5 on both sides, and each side part has an acting part 13, 14 which joins to a brake block. This acting part comprizes an arc-shaped part 14 which is in an outwardly concave shape and has a center of curvature isolated from the axis of rotation of the rim by a radius smaller than that of the intermediate point of the acting part of the side part 5. The second radially external part 13 of the acting part of the side part of the transverse section of the rim is in an outwardly convex shape, and has the shape of an arc connected to the first concave part 14. By adopting this side part shape, it becomes possible to wear a brake block uniformly and to cause the block to generate a uniform. high specific braking pressure.