Metal cords and pneumatic tires using the same
US4836262A · kind A · utility
25Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1987 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Jun 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S57/902
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A metal cord is constructed by twisting three metal filaments in the same direction, and satisfies Lmax.gtoreq.1.05d, Lmin.gtoreq.1d and Lmax/Lmin.gtoreq.1.05 (Lmax : center distance between longest separated metal filaments, Lmin : center distance between shortest separated metal filaments, d : diameter of metal filament), and has specified twisting pitch and elongation under a load of 5 kg/cord. A pneumatic tire comprises a belt composed of plural belt layers each containing the above metal cords arranged at a given inclination angle with respect to the circumferential direction of the tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.