Bicycle having a removable power assist module
US7568714B2 · kind B2 · utility
21Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Mar 15, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M6/55
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power assist module includes a battery powered motor mounted on a manually operated vehicle, such as a bicycle. The power assist module is fixedly mounted on the bicycle and can be easily removed without the need for tools, so that the bicycle can be manually operated in a conventional manner when so desired without carrying the extra weight of the power assist module. The power assist module includes a motor assembly which is operated through a gear reduction assembly to drive a crank drive gear mounted in conjunction with a crank arm of the bicycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.