Frame for bicycle with fixed rim brake - has triangular rear structure with a horizontal lower lowerable fork at the end of which rear wheel is fixed

摘要

On the underside of both arms of the lowerable fork(4) are bases (6) for a U-shaped rim brake, the bases being constructed with the fork. The bases are formed on or welded to the fork. The bases project downwards from the fork and form a projection (7) with bearing surface, from which a pin (8) extends downwards, on which a brake lever is rotatably located. At the lowerable end (10) of the fork a switch eyelet (5) is formed or welded in position. USE/ADVANTAGE - An improved fixture of a rim brake on the lowerable fork of a bicycle, which by simple prodn. and assembly guarantees a sure holding.