Wearable planetary gear configuration
US11337485B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | May 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00032
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wearable system, such as a footwear system, can employ a generator. The generator can be powered by human movement, such as movement of knee as a person walks or runs. When the knee resets, it can be desirable to have a relatively equal gear ratio to achieve near natural movement. Conversely, it can be desirable to have a high gear ratio when the knee pushes off to achieve high generator rotation to produce a high amount of power. This can be achieved with employment of a wearable planetary gear set configuration In practicing this wearable planetary gear set, torque can be provided from the source (e.g. human ankle joint) when power negative and not at other times during a movement cycle, meaning energy can be harvested from the walking motion without inducing additional burden to the device wearer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.