Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1988-12-29
1991-05-14
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152451, 152454, 152556, B60C 920, B60C 304, D02G 348
Patent
active
050147617
ABSTRACT:
A radial tire for motorcycle, in which the steering stability at high running speed is improved and the ply separation at the breaker edges is lessened. The tire comprises: a radial carcass extending between bead portions of the tire; a tread disposed radially outside the carcass; and a breaker disposed between the carcass and the tread and having at least one ply of metallic cords coated with rubber; each metallic cord comprising a plurality of twisted strands; each strand consisting of at least three twisted filaments made of metal; the elongation of each metallic cord when loaded when 1.0 kgf/cord being in a range of 0.5 to 1.5%; the tangential modulus of elasticity of each metallic cord when loaded with 10 kgf/cord being in a range of 8,000 to 15,000 kgf.sq.mm.
REFERENCES:
patent: 1689119 (1928-10-01), Evans
patent: 3090190 (1963-05-01), Boussu et al.
patent: 3192984 (1965-07-01), Bourdon
patent: 3310094 (1967-03-01), Prevost
patent: 4176513 (1979-12-01), Young et al.
patent: 4757850 (1988-07-01), Nakasaki et al.
patent: 4773463 (1988-09-01), Okuni et al.
Kadomaru Kazuo
Kouno Tadao
Noma Hiroyuki
Ball Michael W.
Johnstone Adrienne C.
Sumitomo Rubber Industries Ltd.
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