Pneumatic tire
US11904636B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2020 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Feb 6, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/86
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire includes, in a land portion, at least one circumferential sipe extending in the tire circumferential direction. At a first position, from the tread surface towards the sipe bottom, the sipe width gradually decreases from the tread surface to a first changing point and then gradually increases from the first changing point to the sipe bottom. At a second position, from the tread surface towards the sipe bottom, the sipe width gradually increases from the tread surface to a second changing point and then gradually decreases from the second changing point to the sipe bottom. The sipe width at the tread surface and at the sipe bottom gradually decreases in the tire circumferential direction from the first position towards the second position, and the sipe width in a tire radial intermediate portion gradually increases in the tire circumferential direction from the first position towards the second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.