Pneumatic radial tire for use on passenger cars
US9308778B2 · kind B2 · utility
0Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2012 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Sep 27, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2009/2271
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A belt cover layer is provided on an outer circumferential side of a belt layer. The belt cover layer is constituted by a band-like member in which steel cords are embedded in rubber. Adjacent revolution portions of the band-like member are wound spirally in a tire circumferential direction so as not to contact each other in a region of at least 50% of a belt width centered on a tire equator. A load-strain curve of the steel cords has an inflection point in a strain region of 1% to 3.5%. An average elastic modulus when the steel cords are subjected to a load from 50 N to 100 N is from 25 GPa to 100 GPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.