公开(公告)号：US20170326920A1

公开(公告)日：2017-11-16

申请号：US15592310

申请日：2017-05-11

Applicant: Nokian Renkaat Oyj

Inventor： Reijo YLITALO

IPC: B60C15/00 ,  B29D30/30 ,  B29D30/32 ,  B60C9/00 ,  B60C9/06

CPC classification number: B60C15/0036 ,  B29D30/3007 ,  B29D30/3028 ,  B29D30/32 ,  B60C9/0042 ,  B60C9/06 ,  B60C9/07 ,  B60C9/09 ,  B60C15/0027 ,  B60C15/0054 ,  B60C2015/009

Abstract: A method for manufacturing an annular carcass of a tire includes providing first and second ply materials, each including cords; winding at least a layer of the first ply material and a layer of the second ply material onto a carcass drum so the first ply material radially surrounds the second ply material; arranging two cables onto the cylindrical carcass preform; turning the part of the cylindrical carcass preform about the closer cable onto the part of the cylindrical carcass preform between the two cables; and expanding the cylindrical carcass preform to form an annular carcass having, in a bead area, inner and outer layers of the first ply material and inner and outer layers of the second ply material. The ply materials are arranged so the cords thereof are arranged cross-wise with respect to its neighboring ply materials or a neighboring ply material, considering the innermost or outermost layer.