A metal Cord for reinforcing articles made of elastomeric material manufacture, process and apparatus for the manufacture of said metal Bead ReinforcementTyre and he understands.

摘要

A Cord comprises at least a First and a Second pair of wires (2a, 2b) of different diameters arranged randomly in the same secciontransversal,Is obtained by placing the gondola (7) a Machine for laying dobleto rsion Twister, a (16) which operates upstream of preformador (15).The Twister (16), which rotates in a direction opposite to the rotating element (5) at a rate that is double that of elementorotante,Neutralizes detorsio n internal tension induced in the Wire (2a, 2b) by the effect of double Twisted acciondel conducted on the rotating element.This allows better control of the operation performed in Preformed wires (2a, 2b) dispue these Parallel coplanar enejes respectively.The Cord (1) obtained within each step of laying and only under a condition of not more Traction with a load of 5 kg, has at least one Straight Section where at least 3 wire (2),2b) is estranged from at least one of the wires adjacent to facilitate the passage of VulcanizationTo allow access to the section of the Mixing and Penetration of it along the Axis of the cord (1).ELCORDON is us designed preferably as a strengthening element of tire Belt.