Pneumatic radial tire for passenger cars with defined steel belt cord
US5368081A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1993 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Feb 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10846
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Highly durable, lightweight tires of a pneumatic radial type for passenger cars are constructed with a tread portion having on its outer peripheral surface a plurality of grooves arranged circumferentially of the tire and a belt layer formed from an array of steel cords and disposed in the tread. Each of the steel cords results from twisting a selected number of steel filaments each of specified contents of C, Si and Ni and has a specified level of tensile strength. The distance of rubber from a bottom end of each of the grooves to an outer surface of the steel cord array is defined to be of a specified range as determined cross-sectionally of the tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.