METHOD AND APPARATUS FOR ATTACHING LAYER CONSISTING OF RUBBER MATERIAL ON BASE MATERIAL CONSISTING OF ANOTHER KIND OF RUBBER MATERIAL

摘要

The application of a layer or part (7) of rubber (11) to a base body (6) formed of different rubber 10, is performed by extrusion using an extruder 1, 2 for forming the base body (6) and, laterally leading to the extrusion head (2) thereof, at least one further extruder 13, 12 for forming the layer or part (7). The composite 5 of the layer (7) and body (6) is formed in a common extrusion die 3. The composite is preferably a tyre tread profile in which the layer or part of the different rubber comprises a contact layer or undercushion, or edge elements of the profile. IMAGE