Tire for heavy vehicles
US8146637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2006 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Sep 28, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10801
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a tire having a radial carcass reinforcement comprising a crown reinforcement formed of at least two working crown layers of inextensible reinforcement elements, which are crossed from one layer to the other, forming with the circumferential direction angles of between 10° and 45°, which itself is topped radially by a tread, said tread being joined to two beads by means of two sidewalls and the crown reinforcement comprising at least one layer of circumferential reinforcement elements of an axial width less than that of at least one of the working crown layers.According to the invention, the ratio of the axial width of at least one layer of circumferential reinforcement elements to the axial width of the tread is greater than 0.6, and preferably greater than 0.65, and the ratio of the axial width of the tread to the maximum axial width of the tire is strictly greater than 0.89.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.