Cycle wheel rim and method of manufacture

摘要

The invention includes a rim for a cycle wheel, having a U-shaped radial cross section, with two lateral sidewalls and a bridge connecting the sidewalls and located so as to be opposite an axis rotation of the wheel. The sidewalls each define a planar braking surface, adapted to cooperate with a brake pad. The height of at least one braking surface, measured radially, is not constant over the circumference of the rim and has at least one variation in height.

主权项

1. A rim for a cycle wheel, said rim comprising:
a left sidewall and a right sidewall; a bridge connecting the left and right sidewalls to one another, the bridge defining a radially inner portion of the rim; the left and right sidewalls and the bridge forming a U-shaped radial cross section; each of the left and right sidewalls defines a planar braking surface configured to cooperate with a respective brake pad; the braking surface of each of the left and right sidewalls including an entirety of a portion of each sidewall that is engageable by said respective brake pad, said portion having a radially innermost boundary and an outermost boundary; the braking surface of at least one of the left and right sidewalls has a height, measured radially between the radially innermost boundary and a radially outermost boundary, not constant over a circumference of the rim and has at least one variation in height.