Michelin Recherche Et Technique S.a.

7 Michelin Recherche Et Technique

Compagnie Generale Des Etablissements Michelin

Eugene Marshall Persyn

George Phillips O'Brien

William David Mawby

James Michael Traylor

A tire manufacturing method includes a method for optimizing the uniformity of a tire by reducing the after cure radial force variation. The after cure radial force variation vector is modeled as a vector sum of each of the vectors representing contributions arising from the tire building steps&#x2014;the 'tire room effect vector' and a vector representing contributions arising from the vulcanization and uniformity measurement steps&#x2014;the 'curing room effect vector.' In further detail, both the tire room and curing room effect vectors can be further decomposed into sub-vectors representing each radial force variation contribution for which a measurable indicator is available. For a series of tires, the method obtains such measurements as the before cure radial runout (RRO) at one or more stages of the building sequence, measurements of loading angles on the tire building equipment, and measurements made during vulcanization process.

Tire manufacturing method for improving the uniformity of a tire

A tire manufacturing method includes a method for optimizing the uniformity of a tire by reducing the after cure radial force variation. The after cure radial force variation vector is modeled as a vector sum of each presenting contributions arising from the tire building steps&#x2014;the 'tire room effect vector' and a vector representing contributions arising from the vulcanization and uniformity measurement steps&#x2014;the 'curing room effect vector.' In further detail, both the tire room and curing room effect vectors can be further decomposed into sub-vectors representing each radial force variation contribution for which a measurable indicator is available. For a series of tires, the method obtains such measurements as the before cure radial runout (RRO) at one or more stages of the building sequence, measurements of loading angles on the tire building equipment, and measurements made during vulcanization process.

Growing community of inventors

Comfort, TX, United States of America

Eugene Marshall Persyn