Back to results
US 11,541,574 B2Granted
Bicycle wheel rim
AssigneeCampagnolo S.r.l.
InventorMauri Feltrin
Life of this patent
Estimating the term…
Abstract
A composite rim for a bicycle wheel that has a wall of structural fibers incorporated in a thermosetting polymeric material and a plurality of spoke attachment seats. The composite material includes at least one layer of woven bi-directional fibers where some fibers are in a nominal direction substantially parallel to the circumferential direction of the rim and some fibers are substantially orthogonal to the circumferential direction of the rim.
Claims22
A bicycle wheel rim comprising:
- a tire coupling channel, lateral walls that are joined to the tire coupling channel and a wall that is positioned opposite to the tire coupling channel and joined to the lateral walls, wherein the wall opposite to the tire coupling channel is made of composite material comprising structural fibers incorporated in a thermosetting polymeric material, and has a plurality of spoke attachment seats formed therein, wherein the composite material of the wall comprises at least one layer of woven bi-directional fibers, comprising first fibers having a nominal direction which is substantially parallel to a circumferential direction (C) of the rim, and second fibers interwoven with the first fibers and having a nominal direction which is substantially orthogonal to that of the first fibers, and some of the interwoven fibers are substantially curvilinear about the plurality of spoke attachment seats.
A bicycle wheel rim comprised of:
- a tire coupling channel, lateral walls that are joined to the tire coupling channel and a wall that is positioned opposite to the tire coupling channel and joined to the lateral walls, wherein the wall opposite to the tire coupling channel is made of between 1 to 4 layers of a composite material including structural fibers incorporated in a thermosetting polymeric material, wherein the structural fibers are woven bi-directionally with a first set of fibers having a nominal direction which is substantially parallel to a circumferential direction (C) of the rim and a second set of fibers having a nominal direction which is substantially orthogonal to that of the first set of fibers, and a plurality of spoke attachment seats are formed in said wall;
- wherein each of the between 1 and 4 layers has a thickness between 0.1 mm and 0.3 mm, and some of the interwoven fibers are substantially curvilinear about the plurality of spoke attachment seats.
Dependencies are inferred from the claim text.