Radial tire for airplane

Details Radial tire for airplane Radial tire for airplane

2011-02-08

2011-02-08

Johnstone, Adrienne C (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S451000, C152S531000, C152S533000

Reexamination Certificate

active

07882878

ABSTRACT:
A radial tire for airplane comprises a pair of bead cores, a radial carcass, and a belt disposed on an outer periphery of a crown portion of the radial carcass and comprised of plural belt layers each containing organic fiber cords, in which a total strength in a circumferential direction over a full width of the belt Tbelt(N) satisfies Tbelt/WD≧1.5×106when an outer diameter of the tire is D (m) and a width of the tire is W (m), and at least one layer of the belt layers is constituted with an organic fiber cord spirally winding at an angle of approximately 0° with respect an equatorial plane of the tire and satisfying the following equations (I) and (II):in-line-formulae description="In-line Formulae" end="lead"?σ≧−0.01E+1.2  (I)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?σ≧0.02  (II)in-line-formulae description="In-line Formulae" end="tail"?(wherein σ is a heat shrinkage stress at 177° C. (cN/dtex) and E is an elastic modulus at 25° C. under a load of 49 N (cN/dtex)).

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