公开(公告)号：FR2614582B1

公开(公告)日：1994-09-09

申请号：FR8805624

申请日：1988-04-27

Applicant: BRIDGESTONE CORP

Inventor： KATSUYUKI HARAKON ,  SHIGEKI YAMADA ,  HARAKON KATSUYUKI ,  YAMADA SHIGEKI

IPC: B60C9/02 ,  B60C9/08 ,  B60C9/20 ,  B60C9/22 ,  B60C15/06 ,  B60C9/00 ,  B60C9/04

Abstract: A reinforcing laminate for use in a carcass or a belt of a heavy duty pneumatic radial tire comprises plural reinforcing layers piled one upon the other, each containing cords substantially arranged in parallel to each other and covered with a coating rubber, wherein the cords of the adjoining reinforcing layers are arranged in parallel to each other and the pitch between the cords in one of the reinforcing layers is shifted by an approximately half pitch from that of the other reinforcing layer.