Heavy duty pneumatic tire
US7762297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Jan 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/902
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
It aims to provide a heavy duty pneumatic tire with block patterns and capable of improving deflected wear resisting performances without sacrificing wet grip performances or on-snow performances and that can particularly be favorably used for all seasons. The present invention comprises block patterns employing at least three types of blocks 4 comprised of central blocks 4C delimited by the central longitudinal groove 2M, the intermediate longitudinal grooves 2M, and the central lateral grooves 3C, intermediate blocks 4M delimited by the intermediate longitudinal grooves 2M, the outer longitudinal grooves 2S and the intermediate lateral grooves 3M, and outer blocks 4S that are delimited by outer longitudinal grooves 2S, outer lateral grooves 3S that extend from this outer longitudinal grooves 2S to the tread ends E, and wherein longitudinal length ratios (L4/W4) of blocks 4, groove width ratios of longitudinal grooves and lateral grooves (w2/w3), maximum widths of blocks, minimum widths of blocks and ratios thereof (W4max/W4min), and circumferential edge components and tire axial edge components and ratios thereof (EC/EL) at respective stages of wear are defined to be within speci…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.