US 2022/0177073 A1 · SPROCKET AND CHAIN ASSEMBLY FOR BICYCLE

Abstract

A sprocket and chain assembly for bicycles is revealed. The sprocket and chain assembly for bicycles includes a bicycle sprocket and a bicycle chain. A contact part of the bicycle sprocket and a contact part of the bicycle chain in contact with each other are made of a multi-layer clad metal which is composed of a first metal and a second metal. The first metal has higher hardness and density than the second metal. A surface material for the contact parts of the bicycle sprocket and the bicycle chain is the first metal for providing sufficient wear resistance and ensuring service life of both the bicycle sprocket and the bicycle chain. Moreover, the lightweight design of the bicycle sprocket and the bicycle chain is achieved and sufficient structural strength is provided by the contact parts made of the multi-layer clad metal.

Claims11

Dependent claims

A sprocket and chain assembly for bicycles comprising:

a bicycle sprocket which is provided with a plurality of teeth;
and
a bicycle chain including a plurality of links joined to one another;
the link having two inner plates, two outer plates, two pins and two bushings;
wherein a contact part of the bicycle sprocket is in contact with a contact part of the outer plate and a contact part of the inner plate while the contact part of the bicycle sprocket, the contact part of the outer plate, and the contact part of the inner plate are made of a multi-layer clad metal which is composed of a first metal and a second metal;
the first metal has higher hardness and density than the second metal;
a surface material for the contact part of the bicycle sprocket, the contact part of the outer plate, and the contact part of the inner plate is the first metal with higher hardness.

4 more elements

Dependencies are inferred from the claim text.

Sprocket and chain assembly for bicycle

Life of this patent

Sprocket and chain assembly for bicycle

Life of this patent

Abstract

Claims11