Tire having crown reinforcement
US5996662A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/1081
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A radial "heavy vehicle" tire, of H/S form ratio of at most 0.60, with a wn reinforcement (2) composed of at least two crossed working plies (21, 22), and at least one ply (20) of circumferential cables arranged above the carcass ply (1) and a tread (10) of width L, characterized in that there is arranged, between the ply of circumferential cables (20) and the first, radially innermost, working ply (21), a layer of rubber mix (4) of low modulus of extension, of constant thickness of between 2 and 3 mm. and having a width LM equal to L21, while the second, radially outermost, working ply (22), of axial width L22, which is greater than the width L21, is separated radially from the edge of the ply of circumferential cables (20), firstly by a rubber cushion (5) of a high modulus of extension, extending axially from the end of the working ply (21) beyond the end of the ply of circumferential cables (20), and secondly, radially on the outside of said cushion (5), by a wedge of rubber (6) of a modulus which is intermediate the low modulus and the high modulus and extends axially substantially from the edge of the radially outer working ply (22) to a point axially on the inside of the end …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.