Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1990-09-24
1993-08-17
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152556, B60C 900, B60C 902, B60C 908
Patent
active
052360296
ABSTRACT:
A heavy duty pneumatic radial tire comprises at least one carcass ply reinforced with steel cords substantially arranged at an angle of 90.degree. with respect to an equator of the tire and wound around a bead core from inside of the tire toward outside thereof. In this tire, the steel cord is made from steel wires each having a tensile strength of 330-400 kg/mm.sup.2 and a cementite lamellar distance of 120-190 .ANG., a residual stress of whose is compression stress at a depth within a range of 1/10 to 1/5.5 of a wire diameter from the surface of the steel wire.
REFERENCES:
patent: 4481996 (1984-11-01), De Bondt et al.
patent: 4628977 (1986-12-01), Ogino et al.
patent: 4737392 (1988-04-01), Dambre
patent: 4938015 (1990-07-01), Kinoshita
Hertzberg, Richard W., Deformation and Fracture Mechanics of Engineering Materials, 3rd ed.: New York, John Wiley & Sons, 1989, pp. 479-482.
Research Disclosure No. 21222: "Vehicle Tyre Reinforcement", Dec. 1981, pp. 456.
Kawasaki Kiyohito
Nakashio Satoshi
Ball Michael W.
Bridgestone Corporation
Johnstone Adrienne C.
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