Tire bead core-apex assembly
US4087298A · kind A · utility
9Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1976 |
| Grant date | May 2, 1978 |
| Priority date | — |
| Expiry date | Jul 1, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/482
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apex is cohered to the bead wire bundle or core to form a unitary bead assembly. The core is supported on a rigid continuous planar surface. The apex strip in endless form is supported on the uninflated inflatable cylindrical surface of a turn-up bladder arrangement. Inflation of the bladder arrangement turns or rolls the apex angularly outward to surround the bead core and into an appropriate radial orientation and shape. The bladder action is found to cohere the apex-core so strongly together that conventional roller stitching is not required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.