Frame structure for a motorcycle
US5377776A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1994 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Feb 9, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K11/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved motorcycle frame structure is provided to increase the rigidity of a frame of a motorcycle around a pivot plate. A cross pipe is mounted between lower portions of left and right pivot plates, and lower end portions of left and right center pipes are welded to the cross pipe. Another cross pipe is mounted between upper portions of the left and right center pipes. An intermediate portion of the right side center pipe is welded to a position of the inner side of a pivot plate forwardly of the pivot shaft receiver by way of a pipe member while an intermediate portion of the left side center pipe is coupled to a position on the inner side of the other pivot plate forwardly of the pivot shaft receiver by way of a bolt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.