Bicycle stepping apparatus
US7753387B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2006 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Apr 15, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M1/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle stepping apparatus to increase the moment of force and save manual stepping labor has a stepping means located between a sprocket and a crank of a bicycle. The stepping means has a socket wrench which has a hub on one end with ratchet teeth formed thereon to house a flywheel. The flywheel has a gear engageable with the hub. The axis of the flywheel is coupled on the axle of the sprocket and fastened by a nut. The socket wrench has another end opposite to the hub that has an elongate sliding track formed on the bottom side to slidable hold a pair of first bearings of an auxiliary bar. The auxiliary bar has a steel ring on the bottom end with a pair of second bearings coupled on two sides to allow a shaft of a pedal to run through. The socket wrench can increase the moment of force to save manual stepping labor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.