Fiber-reinforced resin coil spring and method of manufacturing the same
US4473217A · kind A · utility
50Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 1982 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Jan 7, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fiber-reinforced resin coil spring impregnated with thermosetting resin which comprises a resin-impregnated and twisted rod-shaped fiber bundle formed by bundling a plurality of fiber wire blanks made of glass or carbon, immersing the fiber bundle and twisting the rod-shaped fiber bundle in a thermosetting resin, and forming coiled twisted rod-shaped fiber bundle from the resin-immersed and twisted rod-shaped fiber bundle. Thus, the resin coil spring incorporates large elastic energy and high load withstanding capability due to the twisting of the fiber bundle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.