Bicycle frame
AssigneeBMC Trading AG
InventorsRolf Singenberger, Daniel Weibel
Life of this patent
Estimating the term…
Abstract
The chain fork (1) of a bicycle frame is designed as a single unit consisting of a fiber-reinforced polymer material. The chain fork (1) is preferably connected with and cemented to a pedal crank enclosure via an appropriate receptacle.
Claims10
A bicycle frame, characterized by a chain fork (1) made in one piece from a fiber-reinforced polymer frame wherein the chain fork (1) is exclusively curved outward in an arc from a crank bearing bearing or pedal crank enclosure (11) toward a rear-wheel axle (27).
A bicycle frame, comprising a chain fork (1) consisting of a fiber-reinforced, at least partly cross-linkable polymer, and the fibers employed are carbon fibers, mineral fibers, metal fibers or high-quality polymer fibers wherein the chain fork (1) is exclusively curved outward in an arc from a crank bearing or pedal crank enclosure (11) toward a rear-wheel axle (27).
A bicycle frame, characterized by a chain for (1) made in one piece from fiber-reinforced polymer frame wherein the chain fork comprises curved legs (3, 5) that diverge from each other at an increasing rate along their entire lengths.
Dependencies are inferred from the claim text.