US 2017/0284481 A1 · CASSETTE DRIVER FOR A FREEWHEEL HUB

Abstract

Forward movement of a bicycle results when force is transfer from the chain or belt to a sprocket on a cassette. The cassette is splined to the cassette driver and causes the wheel of the bike to rotate when torque is applied from the cassette to the cassette driver. The cassette driver is typically made of a strong hard material such as steel to withstand the forces in parted thereon by the cassette. The present disclosure provide a hub configuration and method that enables the cassette driver to be made with construction of a lighter weight material such as aluminum yet still withstand the toque applied thereto.

Claims20

Dependent claims

A cassette driver comprising:

a cylindrical body portion;
a plurality axially extending raised splines spaced apart on the cylindrical body portion;
wherein at least one of the splines is integrally formed on the surface of the driven end portion of the cassette driver;
and
wherein the at least one spline includes a drive side, the drive side including a reinforcement engagement member.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/089,998Filed 4 Apr 2016

Published

5 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

B60B 27/047
Housing driving means, e.g. sprockets: comprising a freewheel mechanisms
B60B 27/023
Adapted to be rotatably arranged on axle: specially adapted for bicycles
F16D 41/28
Specially adapted for cycles: with intermediate wedging coupling members
B60B 2320/10
Manufacturing or maintenance operations: assembling; disassembling

Cassette driver for a freewheel hub

Life of this patent

Cassette driver for a freewheel hub

Life of this patent

Abstract

Claims20