Cassette and bicycle wheel assembly

摘要

A cassette for a bicycle may include a plurality of sprocket portions fused into a single unit. The cassette may include a cavity formed in the large end of the cassette. Spokes of an associated wheel may be at least partially disposed in the cavity. A related manufacturing method may include joining a first generally planar sprocket portion having a plurality of connector portions extending transverse to the plane of the first sprocket portion, to a second generally planar sprocket portion by fusing at least one of the connector portions to the second sprocket portion.

主权项

1. A method for making a cassette for a bicycle, the method comprising:
forming a generally planar and annular first sprocket portion defining a plane and having a plurality of connector portions each unitary with the first sprocket portion and extending transverse to the plane of the first sprocket portion, by bending a corresponding plurality of elongate members extending radially inward around a first inner diameter (ID) of the first sprocket portion to form the plurality of connector portions; joining the first sprocket portion to a second generally planar sprocket portion by fusing at least one of the connector portions to the second sprocket portion; wherein the second sprocket portion is generally annular and has a second ID sized differently from the first ID.