Easy-adjustment bicycle gear-shifting system
US10442497B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jul 26, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M9/122
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An easy-adjustment bicycle gear-shifting system consisting of a microcontroller unit, a memory, a driver and a derailleur is disclosed. The memory has stored therein more than three position tables each containing the position information of the derailleur relative to the chainrings. The position information contained in one position table has a part or all different from the position information contained in every other position table. The position tables are arranged one after another in a proper order corresponding to one same chainring in such a manner that every two adjacent position tables are differed by a distance value corresponding to one same chainring. The microcontroller unit selects one position table, and drives the driver to shift the derailleur to the corresponding position according to the position information of the selected position table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.