Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1989-08-07
1991-12-03
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152538, 152555, B60C 928
Patent
active
050692623
ABSTRACT:
A tire for a motorcycle comprising a tread, sidewalls extending inwardly from both ends of the tread in a radial direction, bead portions positioned at the radially inward ends of the sidewalls, a toroidal reinforcement carcass composed of reinforcement cords which extend approximately parallel with each other in the radial direction of the tire and of which both end portions are turned up around bead cores, a breaker arranged on the radially outer side of the carcass, the breaker comprising reinforcement tire cords whose tensile strength is not less than 7 g/d and initial modulus is not less than 200 g/d laid at angles of 10.degree. to 45.degree. to the circumferential direction, and a band over the breaker and having a width greater than the breaker so as to axially extend past the outermost edges of the breaker and comprising parallel reinforcement cords laid at angles of 10.degree. to 25.degree. to the circumferential direction, the reinforcement cords of the band having a modulus less than the modulus of the reinforcement cords of the breaker.
The tire has resistance to wear, good grip, and stable high speed running properties.
REFERENCES:
patent: 3786851 (1974-01-01), Mirtain
patent: 3874436 (1975-04-01), Hashida et al.
patent: 4086949 (1978-05-01), Uy
patent: 4231409 (1980-11-01), Mezzanotte
patent: 4319619 (1982-03-01), Kozima et al.
patent: 4510983 (1985-04-01), Ohkuni et al.
patent: 4706724 (1987-11-01), Ohkuni et al.
Hoshikawa Katsuyuki
Ikeda Kazushige
Inoue Yasuhiro
Kamijo Takao
Kato Takeo
Ball Michael W.
Krawczyk Nancy T.
Rubber Industries, Ltd.
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