Device for actuating the front derailleur of a bicycle
US-10160515-B2 · Dec 25, 2018 · US
Bicycle front derailleur with a variable actuation ratio
US9067641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9067641-B2 |
| Application number | US-201113252113-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 3, 2011 |
| Priority date | Oct 3, 2011 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
Official abstract text for this publication.
A front derailleur comprises a base member structured to be attached to a bicycle frame member, a chain guide operatively connected to the base member, and an actuation mechanism coupled to the base member and to the chain guide for moving the chain guide relative to the base member between a first position corresponding to a location for positioning a chain on a first sprocket and a second position corresponding to a location for positioning the chain on a second sprocket. The actuation mechanism is configured so that an actuation ratio of the derailleur when the chain guide is located in the first position is greater than or equal to 1.5 times the actuation ratio when the chain guide is located in the second position.
First claim
Opening claim text (preview).
What is claimed is: 1. A front derailleur comprising: a base member structured to be attached to a bicycle frame member; a chain guide operatively connected to the base member; and an actuation mechanism coupled to the base member and to the chain guide for moving the chain guide relative to the base member between a first position corresponding to a location for positioning a chain on a first sprocket and a second position corresponding to a location for positioning the chain…
Assignees
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Classifications
Operations & Transport · mapped topic
- B62M9/131Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9067641B2 cover?
- A front derailleur comprises a base member structured to be attached to a bicycle frame member, a chain guide operatively connected to the base member, and an actuation mechanism coupled to the base member and to the chain guide for moving the chain guide relative to the base member between a first position corresponding to a location for positioning a chain on a first sprocket and a second pos…
- Who is the assignee on this patent?
- Kuwayama Kazuya, Emura Atsuhiro, Inoue Kenkichi, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B62M9/131. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 30 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).