Retrofit electric machine for bicycle and bicycle
US11498642B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | May 27, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M11/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
To allow a wide range of existing bicycles to be easily converted into electric power assisted bicycles, a retrofit electric machine for a bicycle includes: a housing (52) configured to be attached to a frame (18) of a bicycle (10), an electric motor (54) attached to the housing (52); an annular rotating plate (84) mounted on the housing (52) in a rotatable manner to be centered around a rotational center line of a crankshaft (24) for a pedal of the bicycle (10), and connected to the electric motor (54) in a torque transmitting relationship; and a connecting member (90) including a first connecting portion (92) connected to the crankshaft (24) with a shape fit so as to rotate integrally with the crankshaft (24), and a connecting pin (98) secured to the rotating plate (84).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.