Tread stiffening support ribs for runflat tire
US6701987B1 · kind B1 · utility
15Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Aug 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10765
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire (10) incorporates a plurality of parallel-aligned, tread-stiffening support members (23) typically disposed laterally between the tread (12) and the ply structure (16). The support members (23) inhibit lateral and circumferential tread lift during runflat operation. Support members (23) can each be a monolithic rib (22) made of a fiber reinforced plastic material. An alternative layered rib (24) has two outer layers (40, 44) of a fiber reinforced plastic material while the central layer (42) is an elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.