Composite material bicycle frame and method for making same.

摘要

A composite material bicycle frame comprising a three-branched steering junction member, a four-branched seat junction member and a five-branched bottom bracket junction member which are made of a polymer composite material with an injection molding process. Tubular members made of metals, alloys or plastics are respectively connected between these junction members to form the bicycle frame. A casing is injection-molded on each of the junction members to fully surround the junction members and thus providing the bicycle frame with a higher stiffness. <IMAGE>