Pneumatic tire and wheel rim assemblies
US4747440A · kind A · utility
7Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1983 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Apr 21, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C15/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire and wheel rim assembly of the type in which the wheel rim has retention means engageable with at least one tire bead to retain the tire bead at its bead seat under the action of road generated forces tending to dislodge tire bead wherein bead retention is improved by providing said at least tire bead with a bead reinforcement which has substantial resistance to deformation in an axial direction yet retains sufficient flexibility to a radial direction normal thereto to allow tire fitting to a one-piece rim. Suitable bead reinforcements are those having an axial rigidity factor `K` greater than 8.5 N.m.sup.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.