STEEL CODE FOR REINFORCEMENT OF RUBBER ARTICLE AND PNEUMATIC RADIAL TIRE

摘要

PROBLEM TO BE SOLVED: To provide steel codes for reinforcing rubber articles of plural twisting structure in which the rubber readily penetrates into the inside of the codes, even when they are used as reinforcing belts for large-size off-road radial tires. SOLUTION: In a rubber article-reinforcing steel code (1) having a structure of (1+6)+6×(1+6)+1, the ratio of the diameter (dc) of the core steel filament 2 in the core strand 4 to the diameter (ds) of the sheath steel filament of the sheath 5 satisfies the formula: 1.0