Combination of a heavy goods vehicle tire structure with a tread pattern
US9981506B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 5, 2012 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Sep 7, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2200/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Tire for a heavy goods vehicle, comprising a crown reinforcement, and, radially outside this crown reinforcement, a tread having a total thickness PMU of material intended to become worn during running, the crown reinforcement being formed by at least two working plies and a protection ply positioned radially outside the working plies and radially inside the tread, the narrowest working ply having a width in the range from 70% to 90% of the width W of the tread, the protection ply having a width at most equal to 70% of the width of the narrowest working ply, the tread comprising grooves only in the part radially outside the protection ply, each circumferentially orientated groove having a depth at least equal to 75% of the maximum thickness intended to become worn PMU. This tread comprises, axially between an axial end of the narrowest working ply and an axial end of the protection ply located on the same side of the equatorial plane, a channel that is generally circumferentially orientated and runs all the way around the tire, this channel being formed in such a way that the minimum distances between this channel and the working plies and between this channel and the protection pl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.