Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1986-08-11
1988-09-13
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152557, 152559, B60C 906
Patent
active
047702222
ABSTRACT:
This invention concerns a tire especially for motorcycles, having a textile carcass that comprises at least one pair of cord plies. Each ply has a plurality of cords. The cords are parallel to each other, crossed with those of the adjacent plies and are symmetrically inclined with respect to the circumferential direction, preferably at an angle between 50.degree. and 65.degree. to the midcircumferential plane, measured on the tire crown zone. The tire also has an annular reinforcing structure between the carcass and the tread, comprising at least one pair of textile cord strips, the cords of said strips being crossed with each other and symmetrically inclined with respect to the circumferential direction, at an angle comprised between 18.degree. and 25.degree., measured also on the crown of the tire.
REFERENCES:
patent: 3397729 (1968-08-01), Sperberg
patent: 3509930 (1970-05-01), Mirtain
patent: 3548910 (1970-12-01), Sperberg
patent: 3717190 (1973-02-01), Boileau
patent: 3911987 (1975-10-01), Takusagawa et al.
patent: 4109696 (1978-08-01), Nakasaki et al.
patent: 4177852 (1979-12-01), Merli et al.
patent: 4215735 (1980-08-01), Sato
patent: 4257469 (1981-03-01), Uemura
patent: 4263955 (1981-04-01), Ikeda
patent: 4390052 (1983-06-01), Mendiola et al.
Ball Michael W.
Hoch Ramon R.
Societa' Pneumatic Pirelli S.p.A.
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