Frame structure for a motorcycle
US5984336A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K11/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Seat rails and pivot frames are easily attached to a main frame of a motorcycle. Pivot frames and seat rails are connected to the sides of a rear end portion of a main frame in the form of a round pipe. Upper ends of the pivot frames and front ends of the seat rails are held against the sides of the rear end portion of the main frame such that their attachment axes L1, L2 are substantially aligned with an axis LO of the main frame and the upper ends and the front ends are staggered longitudinally in an overlapping relationship as viewed in a side elevation. The upper ends and the front ends are then welded to the main frame along continuous welding lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.