Heavy duty pneumatic radial tires

Details Heavy duty pneumatic radial tires Heavy duty pneumatic radial tires

1986-02-04

1987-10-20

Czaja, Donald E.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

57902, 152531, 152541, 152543, 152546, 152552, 152560, 244103R, B60C 920, B60C 908, B60C 1506

Patent

active

047007648

ABSTRACT:
A heavy duty pneumatic radial tire for use in airplanes and the like is disclosed, which comprises a toroidal radial carcass, a belt superimposed about a crown region of the carcass and composed of at least three cord layers, and a bead portion reinforcement consisting of a stiffener composed of a hard rubber stock and a soft rubber stock, a main chafer made from aromatic polyamide fiber cords, and an auxiliary chafer of at least two cord layers covering the outside of said main chafer and at least one cord layer arranged along the inside of the turnup portion as an inner cord layer, and having such a triangular truss structure that cords of at least two cord layers are arranged at inclination angles of 65.degree..about.90.degree. and 35.degree..about.55.degree. with respect to the meridional plane of the tire, respectively, and cords of the remaining cord layer are arranged at an inclination angle of -50.degree..about.70.degree. with respect to the meridional plane.

REFERENCES:
patent: 3961657 (1976-06-01), Chrobak
patent: 4046183 (1977-09-01), Takahashi et al.
patent: 4289184 (1981-09-01), Motomura et al.

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