Bicycle sprocket
US-2015360749-A1 · Dec 17, 2015 · US
Cinch direct mount 2X ring system
US12091133B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12091133-B2 |
| Application number | US-202318109773-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 14, 2023 |
| Priority date | Apr 28, 2017 |
| Publication date | Sep 17, 2024 |
| Grant date | Sep 17, 2024 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A cinch direct mount 2× ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.
First claim
Opening claim text (preview).
What is claimed is: 1. A bicycle chainring assembly comprising: a drive side crank arm comprising a chainring assembly interface, the chainring assembly interface having a circumference and an axial length; a first chainring having a first outer diameter and a first center assembly shape, the first outer diameter having a plurality of teeth thereon; a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter having a plurality of teeth thereon, the second outer diameter being different than the first outer diameter; a single fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the chainring assembly interface, the first center assembly shape comprising: an inner diameter that engages with the chainring assembly interface about the circumference of the chainring assembly interface over an entirety of the axial length; and an outer diameter comprising a plurality of splines about the circumference of the first center assembly shape, the plurality of splines having a second axial length; and the second center assembly shape engages with the plurality of splines about the circumference of the first center assembly shape over an entirety of the second axial length.
Assignees
Inventors
Classifications
Construction of cranks operated by hand or foot · CPC title
Chain-wheels · CPC title
with rotary cranks, e.g. with pedal cranks (B62M1/34 takes precedence; combined with reciprocating levers B62M1/26; cranks which can be immobilised as foot rests B62M5/00) · CPC title
- B62M9/105Primary
involving front sprocket chain-wheels engaged by the chain, belt or the like · CPC title
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Frequently asked questions
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- What does patent US12091133B2 cover?
- A cinch direct mount 2× ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainri…
- Who is the assignee on this patent?
- Fox Factory Inc
- What technology area does this patent fall under?
- Primary CPC classification B62M9/105. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 17 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).