Adjustable magnetic resistance mechanism for upright bikes
US7077789B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 2005 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | May 11, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B21/225
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An adjustable magnetic resistance mechanism of an upright bike includes a fan-shaped adjustment board which is pivotably connected to the bike's frame and a magnet unit is connected to a distal end of the adjustment board. A connection board is connected to the adjustment board and a shaft of the flywheel extends through a curve slot of the adjustment board. Two ends of the shaft are supported on two support plates on two upright posts of the upright bike. An axle extends through a pivot hole in the adjustment board and the connection board. A resilient member is connected between the connection board and the adjustment board. The adjustment board is pivoted about the axle to adjust the gap between the flywheel and the magnet unit on the adjustment board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.