Abstract: A process for manufacturing tires for vehicle wheels includes building on a forming support a carcass structure including at least one carcass ply, and, at at least one end edge of the carcass ply, at least one annular anchoring structure including at least one substantially circumferential annular insert and at least one filling insert associated with the at least one substantially circumferential annular insert. Building the carcass structure includes positioning the annular anchoring structure on the carcass ply by moving the substantially circumferential annular insert into contact with an end edge of the carcass ply by means of a special positioning member, pulling down the filling insert on the end edge of the carcass ply and turning up a free end portion of the end edge of the carcass ply so as to form a turned up end portion of the carcass ply including the annular anchoring structure.
Type:
Grant
Filed:
November 15, 2007
Date of Patent:
August 9, 2016
Assignee:
Pirelli Tyre S.p.A.
Inventors:
Maurizio Marchini, Gianni Mancini, Gaetano Lo Presti
Abstract: A method and device are described for the reproduction of a certain image, previously digitalized and separated into a number of pixels and optimized into a number of colors below a certain limit, with the help of a specific software application. The method includes the construction of individual colored elements that correspond to each of the colors selected for the image, where these elements or pixels consist of small cubic parts made of glass or similar. The method and the device include the means for extracting said pixels from the individual containers and positioning them sequentially for the formation of successive rows which, placed next to each other, form the desired image. The desired image or mosaic is completed with the support for the pixels made of an appropriate material, where the pixels are bound to each other and/or to the support by means of a process of adhesion or the application of heat in an oven up to the temperature at which the material softens.