Bicycle transmission apparatus
US9789928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Feb 2, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M2025/006
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle transmission apparatus comprises a base member, a first transmission member, a second transmission member, and a first coupling member. The first transmission member is rotatable relative to the base member about a first rotational axis and is movable relative to the base member in an axial direction parallel to the first rotational axis. The second transmission member is rotatable relative to the base member about a second rotational axis and is stationary relative to the base member in the axial direction. The first coupling member is configured to couple the first transmission member to the second transmission member to transmit rotation of the first transmission member to the second transmission member at a variable speed stage which is variable in accordance with at least one positional relationship among the first transmission member, the second transmission member, and the first coupling member in the axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.