High efficiency bicycle frame suspension
US6109636A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1995 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Aug 25, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S384/912
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle frame suspension comprises a single main tube having fore and aft ends and left and right sides with a head tube for rotatably mounting the front steering forks and front wheel secured to said fore end and a seat retention tube for mounting the seat secured to the aft end and bearings attached to either side of the main tube. A rigid rear triangle assembly has a bottom bracket for rotatably mounting the pedal and crank assembly. Left and right chain stay tubes have forward and trailing ends. A wheel fixing dropout is secured to each trailing end, respectively. The forward ends are secured to the bottom bracket. Left and right seat stay tubes have trailing ends secured in the proximity of the trailing ends of the chain stay tube and the dropouts, respectively. Pivot struts have upper and lower ends with the lower ends being secured to the bottom bracket, the upper ends being provided with bearing fittings and spaced apart a distance D and joined to forward ends of the seat stay tubes. A suspension spring assembly has one end connected to the bottom bracket and the other end connected to said main tube and proximate the aft end of the single main tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.