Pneumatic tire with wound cord layer between carcass layer and belt layers
US7537035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2007 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Aug 10, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10783
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire is provided which enables durability thereof to be improved by preventing oxidation degradation of belt layers. In the pneumatic tire, a carcass layer is laid between a pair of bead portions so that the carcass layer links the bead portions, an air penetration preventing layer is disposed on the inner surface of the tire along the carcass layer, and belt layers are buried in a tread portion at the side of the outer periphery of the carcass layer. In the pneumatic tire, a cord layer, which is formed by repeatedly winding a cord in the tire circumferential direction, is disposed between the carcass layer and the belt layers, and at least one portion of the cord layer is made close to the outer surface of the tire so that a distance between the cord and the outer surface of the tire is not longer than 2 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.