Patent ID: 8043456
Filing Date: 2011-10-25
Classification: B29C,B29D,F16K

Abstract:
1. A method of manufacturing tyres, comprising the steps of: assembling components of a tyre being processed on a support element, wherein at least one first component is formed through winding of at least one first continuous elongated element into coils arranged one against the other, which first element is made up of a first elastomer material coming from a first extruder, and wherein at least one second component is formed through winding of at least one second continuous elongated element into coils arranged one against the other, which second element is made up of a second elastomer material coming from a second extruder; conveying the first and second elastomer materials from the first and second extruders through respective first and second connecting ducts into converging paths connected with a dispenser; positioning the support element in front of said dispenser; selectively enabling supply, using switching over devices, of the first and second elastomer materials through said dispenser to form the first and second continuous elongated elements, respectively, wherein the switching over devices include a first valve unit for controlling supply of the first and second elastomer materials from the first and second connecting ducts to the dispenser; and moving the support element in front of said dispenser for winding and distributing the first and second continuous elongated elements respectively, so as to form the first and second components in succession.