METHOD FOR LAYING DOWN AT LEAST AN ELASTIC ELEMENT IN A PROCESS FOR PRODUCING TYRES FOR VEHICLES, PROCESS FOR PRODUCING TYRES FOR VEHICLES AND APPARATUS FOR CARRYING OUT SAID LAYING DOWN METHOD

摘要

A method of laying down at least one elastic element in a process for producing tyres for vehicles includes the following steps: determining a first parameter representative of a laying speed at which at least one elastic element is laid down around a tyre forming drum; determining a second parameter representative of a percent elongation to be applied to the elastic element; adjusting, as a function of the first and second parameters, a rotation speed of a control roller positioned upstream of the forming drum and having a radially external surface at least partly in engagement with the elastic element for controlling the laying profile of the at least one elastic element. A process for producing tyres for vehicles and an apparatus for carrying out the laying method are also described.