公开(公告)号：US20150075689A1

公开(公告)日：2015-03-19

申请号：US14395545

申请日：2013-05-02

Applicant: BRIDGESTONE CORPORATION

Inventor： Yukimasa Fukuda

IPC: B60C9/00 ,  D02G3/48

CPC classification number: B60C9/0007 ,  B60C2009/0092 ,  B60C2009/0425 ,  D02G3/48 ,  D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/2037 ,  D07B2201/2097 ,  D07B2501/2046

Abstract: Provided is a technique for attaining tire weight reduction while inhibiting occurrence of a product defect caused by deformation by improving the structure of a steel cord used for a carcass ply to improve the resistivity against deformation of a green tire when stored in an unvulcanized state.Also provided is a steel cord for reinforcing rubber articles with a multi-twisted structure in which a plurality of strands 11, 12 formed by twisting a plurality of wires 1, 2, 3 together in a layered-twisted structure are twisted together in a 2-layer-twisted structure. The cord mass is from 35 g/m to 65 g/m, and the ratio of flexural rigidity G (N·mm2) to cord cross section A (mm2), G/A (N) is from 400 N to 650 N.

Abstract translation: 本发明提供一种通过改善用于胎体帘布层的钢帘线的结构来抑制由于变形引起的产品缺陷的发生而提高轮胎重量减轻的技术，以提高在未硫化状态下储存时的生胎的变形的电阻率。 还提供了一种用于加强具有多重扭曲结构的橡胶制品的钢丝绳，其中通过将多个线束2,3组合在一起的多个线束12,12以多层绞合结构扭转在一起， 层间扭曲结构。 绳质量为35g / m〜65g / m，弯曲刚度G（N·mm2）与帘线截面A（mm2），G / A（N）的比为400N〜650N。

公开(公告)号：US10017011B2

公开(公告)日：2018-07-10

申请号：US14395545

申请日：2013-05-02

Applicant: BRIDGESTONE CORPORATION

Inventor： Yukimasa Fukuda

IPC: B60C9/00 ,  D07B1/06 ,  D02G3/48 ,  B60C9/04

CPC classification number: B60C9/0007 ,  B60C2009/0092 ,  B60C2009/0425 ,  D02G3/48 ,  D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/2037 ,  D07B2201/2097 ,  D07B2501/2046

Abstract: Provided is a technique for attaining tire weight reduction while inhibiting occurrence of a product defect caused by deformation by improving the structure of a steel cord used for a carcass ply to improve the resistivity against deformation of a green tire when stored in an unvulcanized state.Also provided is a steel cord for reinforcing rubber articles with a multi-twisted structure in which a plurality of strands 11, 12 formed by twisting a plurality of wires 1, 2, 3 together in a layered-twisted structure are twisted together in a 2-layer-twisted structure. The cord mass is from 35 g/m to 65 g/m, and the ratio of flexural rigidity G (N·mm2) to cord cross section A (mm2), G/A (N) is from 400 N to 650 N.