Derailleur apparatus for bicycles
US10059401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20043
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A derailleur apparatus for bicycles includes a housing on a handle and a gearshift control assembly inside the housing. The gearshift control assembly has a first lever for cable-pulling, a ratchet assembly having a ratchet plate further having teeth, a second lever for cable-releasing, and an index claw. The first lever has a first pawl to keep the ratchet assembly at an initial position. The derailleur apparatus is characterized on that: the index claw further has a matching member and a second pawl, the second lever and the matching member form a first specific contact and a specific actuation relationship, and the second lever can move arbitrarily. While the second lever moves to form a second specific contact with the matching member, the index claw rotates to mesh the second pawl with the ratchet plate, such that the down-shift movement toward a second direction can be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.