Bicycle wheel rim and relative manufacturing process
AssigneeCampagnolo S.r.l.
InventorMauri FELTRIN
Life of this patent
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Abstract
A bicycle wheel rim made at least partially of a stratified composite material comprising structural fibers incorporated in a polymeric matrix. At least one opening, which passes through at least one first layer of composite material, is provided and at least one spoke attachment hole, which passes through at least one second layer of composite material, is also provided. The spoke attachment hole is completely contained within the opening in the first layer. A related manufacturing process is also described.
Claims15
A bicycle wheel rim at least partially made of a stratified composite material comprising structural fibers incorporated in a polymeric matrix,
- wherein at least one opening passes through at least one first layer of the stratified composite material,
- wherein at least one spoke attachment hole passes through at least one second layer of the stratified composite material, and
- wherein said at least one spoke attachment hole is completely contained in said at least one opening when looking in a direction of an axis common to said at least one opening and said at least one spoke attachment hole.
A process for manufacturing a bicycle wheel rim made at least partially of a stratified composite material comprising structural fibers incorporated in a polymeric matrix, comprising the steps, not necessarily in sequence, of:
- a) forming at least one through opening in at least one first layer of the stratified composite material,
- b) arranging said at least one first layer in a mould,
- c) arranging at least one second layer of the stratified composite material in a mould,
- d) forming at least one hole in said at least one second layer,
- with the proviso that, after all of the aforementioned steps have been carried out, said at least one hole is completely contained in said opening when looking in a direction of an axis common to said at least one opening and said at least one spoke attachment hole.
Dependencies are inferred from the claim text.