Tire for off-road vehicle having improved endurance
US11884106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | May 8, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2200/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Tire (1) for an off-road vehicle, comprising a crown and a tread (22) having a width W and a thickness E of wearable material, this tread (22) having a superposition of at least two layers of materials, a first layer (221) radially on the inside and a second layer (222) radially on the outside of the first layer (221) to contact the ground when the tire is new, this second layer (222) having a thickness E2 relative to the thickness E of wearable material, the tread (22) being provided with at least two narrow grooves (4, 5) running all around the tire which have a zigzagging shape of wavelength L and amplitude A, the wavelength L being between 10% and 120% of the axial width W of the tread (22), and the amplitude A being between 10% and 75% of axial width W. The material of the first layer (221) is chosen with low hysteresis; with a measured tan(δ) value at most equal to 0.30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.