Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1994-01-12
1995-01-31
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152526, 152527, 152531, 152533, 152546, 152554, 152555, B60C 918, B60C 920, B60C 1300, B60C 1506
Patent
active
053851935
ABSTRACT:
A motorcycle radial tire includes a carcass having at least one ply of radially arranged organic fiber cords turned up around a pair of bead cores, the radial height (Ht) of the radially outer edge of the carcass turned up portions being more than 0.6 times and less than 1.2 times the radial height (Hs) of tread edges, a first belt having one cord or a plurality of parallel cords wound spirally so that the windings thereof are laid at small angles with respect to the tire equator, a second belt having one ply of parallel organic fiber cords laid at at angle of 10 to 30 degrees with respect to the tire equator, a bead apex made of rubber having a JIS(A) hardness of 65 to 75 disposed between the main portion and each turned up portion of the carcass, and the radial height (Ha) of the radially outer edge of the bead apex from the bead base line being more than 0.5 times and less than 1.2 times the radial height (Hs) of the tread edges.
REFERENCES:
patent: 3557858 (1971-01-01), Lugli
patent: 3677319 (1972-07-01), Mirtain
patent: 3703202 (1972-11-01), Maiocchi
patent: 4688615 (1987-08-01), Lee
patent: 4706724 (1987-11-01), Ohkuni et al.
patent: 4745957 (1988-05-01), Sumner
patent: 5176770 (1993-01-01), Ohkuni
patent: 5198051 (1993-03-01), Suzuki et al.
Suzuki Shigehiko
Yasui Itsuo
Ball Michael W.
Johnstone Adrienne C.
Sumitomo Rubber Industries Ltd.
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