Method and apparatus for producing tread strips for automotive vehicle tires
US4927482A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Nov 4, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2030/002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and an apparatus for producing laminated profile strips from a plurality of rubber components destined to be used in automotive vehicle tires are disclosed. The individual rubber profile strips, formed from various mixtures are each extruded from individual extrusion devices. Each extrusion device has its own extrusion head having an appropriate nozzle outlet which delivers each strip onto its own individual roller. The edges of each strip are trimmed while it is on its roller. The rollers are disposed adjacent one another so as to define roller nips therebetween. The component strips are subsequently laminated together in the nips to form either an intermediate or final profile strip. If an intermediate strip is produced, this remains on one of the rollers and is jointly passed through a further nip between the roller on which is located and a further roller carrying either a further individual strip or a further intermediate profile strip produced in a like manner to produce the final strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.