Tire having rows of block land portions, lateral grooves and at least three circumferential grooves
US8851130B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2008 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Feb 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/902
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An object the present invention is to provide a tire, in which wear resistance has been enhanced by optimizing the shape and location of block land portions. The tire has plural rows 5 of block land portions 4 formed by demarcation by providing plural circumferential grooves 2 extending along tire circumferential direction and plural lateral grooves 3 for communicating adjacent two circumferential grooves 2,2 with each other; in at least two rows 5 of block land portions adjacent to each other with a circumferential groove therebetween, among the rows 5 of block land portions 4, the respective rows 5 of block land portions 4 are disposed to be offset with respect to each other in the tire circumferential direction. The extending direction of the groove portion 6 between the block land portions adjacent to each other in the tire widthwise direction is inclined with respect to the tire widthwise direction and tire circumferential direction. A distance between the block land portions adjacent to each other in the tire widthwise direction d2 is shorter than a distance d1 between the block land portions adjacent to each other in the tire circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.