Method of making tire fabric impregnated with rubber
US4689101A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1984 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Jun 28, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2030/002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and a method of manufacture for a tire component comprising a sheet of reinforced unvulcanized rubber compound having two parallel main surfaces comprising pre-coating the reinforcement material fabric of the component with unvulcanized rubber compound, placing the component in an open mould shaped to accommodate the component arranged to contact one of said surfaces, positioning a pressurizing member to contact the other said surface, maintaining the time/temperature conditions of the mould and the component below those required to cause vulcanization, operating the pressurizing member to apply substantial compressive force to the component so that the rubber compound is pressed into intimate contact with the reinforcement and removing the unvulcanized component from the mould. The method provides real penetration of the rubber compound into the reinforcement and is particularly valuable for tire breakers which are steel cord reinforced. The breakers may be made as annular rings or straight discrete lengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.