Method of forming composite tubular structure
US4930204A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Sep 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/4933
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composite tubular structure, such as a vehicle drive shaft. The ends of a fiber reinforced resin tubular member are formed with a plurality of longitudinal slots and each slotted end of the tubular member is positioned in overlapping relation with a cylindrical sleeve portion of a metal yoke. A cylindrical metal collar is disposed around the overlapping joint and spaced portions of the collar are deformed inwardly by electromagnetic energy into contact with the sleeve of the yoke. The deformed portions can be mechanically interlocked with the sleeve by welding or the like. With this construction, the torsional load is transmitted through the deformed portions of the collar and the edges of the tubular member bordering the slots to provide an improved mechanical connection between the fiber reinforced tubular member and the yokes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.