Bicycle sprocket
US-9555855-B2 · Jan 31, 2017 · US
Clad Chainring
US2016215868A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016215868-A1 |
| Application number | US-201615093378-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 7, 2016 |
| Priority date | Jun 16, 2014 |
| Publication date | Jul 28, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A bicycle chainring, including a generally annular body formed of at least an inner material, the inner material including a first side and a second side opposite the first side and a plurality of teeth disposed about a periphery of the body. At least some of the plurality of teeth are formed of both the inner material and an outer material, the outer material disposed on one or both of the first and second sides, the outer material having a greater wear resistance relative to the inner material and a thickness greater than 0.1 millimeter.
First claim
Opening claim text (preview).
1 . A sprocket for a bicycle drivetrain, comprising: a generally annular body formed of inner material and at least some outer material, the inner material including a first side and a second side opposite the first side, wherein the outer material is disposed on the first side and the second side of the inner material; and a plurality of teeth disposed about a periphery of the body, at least some of the plurality of teeth formed of only the outer material, the outer material having a greater wear resistance relative to the inner material and a thickness greater than 0.1 millimeter. 2 . The sprocket of claim 1 , wherein the inner material includes an aluminum alloy and the outer material includes an iron alloy. 3 . The sprocket of claim 1 , wherein the plurality of teeth include a first group of teeth and a second group of teeth, each of the teeth of the first group of teeth wider than each of the teeth of the second group of teeth. 4 . The sprocket of claim 3 , wherein each of the first group of teeth is arranged between an adjacent pair of the second group of teeth. 5 . The sprocket of claim 3 , wherein each of the first group of teeth is arranged between each of the second group of teeth in an alternating pattern. 6 . The sprocket of claim 3 , wherein the plurality of teeth is an even number of teeth. 7 . The sprocket of claim 6 , wherein the first group of teeth and the second group of teeth are equal in number. 8 . The sprocket of claim 3 , wherein each of the first group of teeth include one or more protrusions. 9 . The sprocket of claim 8 , wherein the protrusions are formed of the outer material. 10 . The sprocket of claim 1 , wherein all of the plurality of teeth are formed of only the outer material. 11 . The sprocket of claim 1 , wherein the outer material that is disposed on the first side and the outer material that is disposed on the second side of the inner material and form the plurality of teeth is equal in thickness. 12 . The sprocket of claim 1 , wherein the plurality of teeth include a first group of teeth and a second group of teeth, each of the teeth of the first group of teeth formed of only the outer material. 13 . The sprocket of claim 1 , wherein the sprocket is configured to operate as a chainring for the bicycle drivetrain. 14 . A bicycle chainring, comprising: a generally annular body formed of at least an inner material, the inner material including a first side and a second side opposite the first side; and a plurality of teeth disposed about a periphery of the body, at least some of the plurality of teeth formed of both the inner material and an outer material, the outer material disposed on both of the first and second sides, the outer material having a greater wear resistance relative to the inner material and a thickness greater than 0.1 millimeter, wherein the outer material of the first side and the second side comes into contact at the tip of at least one tooth.
Assignees
Inventors
Classifications
involving different-sized wheels, {e.g. rear sprocket chain wheels} selectively engaged by the chain, belt, or the like {(bicycle hubs rotatably arranged on axle B60B27/023)} · CPC title
Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties · CPC title
- F16H55/30Primary
Chain-wheels · CPC title
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- What does patent US2016215868A1 cover?
- A bicycle chainring, including a generally annular body formed of at least an inner material, the inner material including a first side and a second side opposite the first side and a plurality of teeth disposed about a periphery of the body. At least some of the plurality of teeth are formed of both the inner material and an outer material, the outer material disposed on one or both of the fir…
- Who is the assignee on this patent?
- Sram Llc
- What technology area does this patent fall under?
- Primary CPC classification F16H55/30. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jul 28 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).