Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1988-12-28
1992-02-04
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152539, 152546, 152552, 152556, B60C 902, B60C 1500
Patent
active
050852604
ABSTRACT:
A heavy duty radial tire and rim assembly comprising a pair of bead cores, a carcass, a belt, and a pair of bead apexes, wherein in at least one of the bead portions, when the tire is mounted on a normal rim specified for the tire and inflated to a normal pressure, a thickness center line of a carcass turnup portion between two points is cured and located axially inward of a straight line drawn between the two points, the quotient (X/HR) of the axial distance (X) of the inner end (Q2) of the bead core from a bead heel point (Q1), to the height (HR) of a flange of the normal rim is in a range of 0.8 to 1.05, wherein the bead heel point (Q1) is defined as in intersection of an extension of the outer surface of the bead portion with an extension of the bead base, and the quotient (Y/HR) of the radial distance (Y) from the radially outer end (Q3) of the flange of the rim to the radially outer end (Q4) of the bead core, to the height (HR) of the flange of the rim is in a range of 0 to 0.3.
REFERENCES:
patent: 3245455 (1966-04-01), Lewis
patent: 3419059 (1968-12-01), Bridge, Jr.
patent: 3548912 (1970-12-01), Rye et al.
patent: 4261405 (1981-04-01), Yamauchi et al.
patent: 4688617 (1987-08-01), Hopkins et al.
patent: 4716951 (1988-01-01), Suzuki et al.
patent: 4726408 (1988-02-01), Alie et al.
Ikeda Kazushige
Mizukoshi Yasuyoshi
Ueyoko Kiyoshi
Yamada Munemitsu
Ball Michael W.
Sumitomo Rubber Industries Ltd.
Wilber Gregory J.
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