Pneumatic tire having an overlay reinforcement
US6799618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Apr 25, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10783
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire (10) comprises a radial ply (12) carcass, a tread portion disposed radially outwardly of the crown area (14) of the carcass and a crown reinforcing structure interposed between the tread portion (19) and the carcass. The crown reinforcing structure includes a belt assembly (15) having at least a first (16), radially innermost and a second (17), radially outermost belt ply as well as a textile overlay structure (18) which is superimposed radially outwardly to said belt assembly (15). The textile overlay structure is reinforced with cords (40, 51) being made of materials including nylon and aramid. At initial elongation of the cords, the primary load bearing yarns are the nylon yarns; after appreciable elongation the primary load bearing yarns are the aramid yarns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.