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Title:
STEEL CORD FOR REINFORCING RUBBER AND PNEUMATIC TIRE USING THE SAME IN BELT LAYER
Document Type and Number:
Japanese Patent JP2004263312
Kind Code:
A
Abstract:

To provide a steel cord facilitating winding onto a reel without causing a flare phenomenon and a pneumatic radial tire having improved comfortableness to ride and belt durability without inhibiting maneuvering stability and using the steel cord in a belt layer.

The steel cord for reinforcing rubber is obtained as follows. At least one thermoplastic organic fiber cord 3 is wrapped at a winding pitch corresponding to (1/5) to (1/2) of a laying pitch around a steel cord 2 prepared by laying steel wires 1 having 0.15-0.50 mm wire diameter into a structure of 1×N (N=3-5), 1+N (N=2-6) or 2+N (N=1-7) at 50-150 mm laying pitch and formed so as to retain the wrapping shape. The pneumatic radial tire uses the steel cord in the belt layer 12.


Inventors:
Komatsu, Ryuzo
Application Number:
JP2003000052522
Publication Date:
September 24, 2004
Filing Date:
February 28, 2003
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD:THE
International Classes:
D07B1/06; B60C9/00; B60C9/20; (IPC1-7): D07B1/06; B60C9/00; B60C9/20
Attorney, Agent or Firm:
小川 信一
野口 賢照
斎下 和彦