Collapsible bicycle
US6279935A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K15/006
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle is described which has a frame at least consisting of a forward frame part with a steering device for a front wheel and a rearward frame part with a rear wheel, the connection between the forward and the rearward frame part consisting at least of a turning knuckle which can be swivelled about a transverse axis of the bicycle. The transverse axis is congruent with a bottom bracket bearing axis. The steering device consists at least of a fork carrying the front wheel and consisting of two fork tubes and a fork bridge, of a handle bar and of a steering tube connecting the handle bar and the fork bridge. The fork bridge is designed such that an offset between the longitudinal axes of the fork tubes and the longitudinal axis of the steering tube exists in the longitudinal direction of the bicycle in a position of the steering device for straight-ahead riding. This has the effect that, at an angle of lock of the steering device of ninety degrees, a distance exists between the fork tubes and a bicycle center plane which permits the swivelling-along of the rear wheel during the swivelling of the rearward frame part about the transverse axis, without any contact with the fork tube…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.