Sprocket Assembly

摘要

The invention relates to a sprocket assembly for mounting on a driver of a rear wheel hub of a bicycle. By means of a threaded element, a sprocket cluster and a separately embodied ring element are axially clamped together, and a rotation-coupling device is provided between the sprocket cluster and the ring element. Knurled teeth features on the threaded element and ring element prevent the loosening of the threaded element. Through the separate embodiment of the ring element and sprocket cluster, the respective most suitable manufacturing methods can be used for the two parts and, in the event that the sprocket cluster is manufactured by means of machining methods, the knurled features on the ring element can also be produced in a cost-effective and precise manner through shaping methods.

主权项

1. A sprocket assembly for mounting on a driver of a rear-wheel hub of a bicycle, comprising:
a sprocket cluster; a ring element having a first knurled feature; a threaded element having a second knurled feature, the first and second knurled features sized and shaped to fit together, wherein the sprocket cluster and the ring element are braced against each other in an axial direction by the threaded element; and a rotation-coupling device provided between the ring element and the sprocket cluster, the rotation-coupling device including a first rotation-coupler on the ring element and of a second rotation-coupler on the sprocket cluster, which rotationally couples the ring element and the sprocket cluster.