Double swing-arm motorcycle frame
US4721179A · kind A · utility
16Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1986 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Oct 15, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K25/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A motorcycle frame in which both the front and rear wheels are supported by respective pairs of swing arms pivotally supported by two side frames. Each side frame has a front and a rear bracket and a connecting structure extending upwardly and longitudinally over the engine. The connecting structure may be integral with both of the brackets or may be a pipe frame bolted to the brackets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.