Composite bicycle frames and methods for making same

Details Composite bicycle frames and methods for making same Composite bicycle frames and methods for making same

B - Operations, Transporting

62

K

280/39

B62K 19/16 (2006.01) B29C 41/00 (2006.01) B29C 70/44 (2006.01) B29C 43/12 (2006.01)

Patent

CA 1322381

Abstract of the Disclosure Disclosed is an improved bicycle frame of composite materials and a method of molding generally hollow components and assemblies for such a bicycle frame. The entire bicycle frame may be one integrally united piece of molded composite materials, such as unidirectional structural fibers impregnated with a heat curable synthetic resin. Layers of the composite material may be shaped to form an uncured frame shell. This shell is compressed against the surfaces of a mold by an internal pressing member, such as an inflatable bladder routed to the outside through a passageway passing through a modified bottom bracket sleeve or a modified head tube sleeve. The shell is then cured while under compression in the mold.

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