Pneumatic radial tire
US8376009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2008 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Nov 1, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10765
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is a pneumatic radial tire having improved flat spot resistance without sacrificing its high-speed durability, when a belt auxiliary reinforcement layer thereof is constituted of a hybrid fiber cord including a general-purpose nylon as a low-elastic fiber yarn. In the pneumatic radial tire, the belt auxiliary reinforcement layer is formed by winding an organic fiber cord around the outer periphery of belt layers in the tire circumferential direction. The organic fiber cord constituting the belt auxiliary reinforcement layer is obtained by twisting a highly-elastic fiber yarn with an elastic modulus of 10000 MPa or more and a low-elastic fiber yarn made of nylon 46.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.