2+9 Steel cords for the reinforcement of rubber articles and pne

Details 2+9 Steel cords for the reinforcement of rubber articles and pne 2+9 Steel cords for the reinforcement of rubber articles and pne

1998-07-23

2000-09-19

Johnstone, Adrienne C.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

57212, 57902, 152451, 152556, B60C 900, B60C 908, B60C 920, D07B 106, D07B 108, D07B 110

Patent

active

061197475

ABSTRACT:
A steel cord for the reinforcement of rubber articles has a two-layer construction in which a core consists of two steel filaments and a sheath arranged around the core consists of nine steel filaments. Preferably the two steel filaments constituting the core are either non-twisted filaments or are twisted at a pitch of not less than 30 mm on average, a ratio (ds/dc) of the diameter ds of each steel filament constituting the sheath to the diameter dc of each steel filament constituting the core is within a range of 35-80%, and a ratio (a/b) of the minor diameter a to the major diameter b of the cord cross-section in an arbitrary position in the longitudinal direction of the cord is within a range of 63-100%

REFERENCES:
patent: 5706641 (1998-01-01), Ishizaka

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