Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1991-09-16
1993-08-24
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152522, 152555, B60C 1704, B60C 1300
Patent
active
052380408
ABSTRACT:
A pneumatic tire having a carcass 1 and at each sidewall 5 thereof are a first and a second elastomeric reinforcement inserts 13, 15 interposed between a first and a second carcass plies 10, 11. Each insert is thinner towards the respective opposite radial ends of its section. The reinforcement inserts 13, 15 are adjacent and in alignment with the maximum width of the tire 2 at a point 14. A third elastomeric insert 16 of lenticular section, internally covers the first carcass ply 10 and has an area of maximum thickness 16a in substantial alignment with the point of adjacency 14 between the reinforcement inserts 13, 15. The first and second reinforcement inserts 13, 15 behave like stiff arms, mutually hinged at their point 14 of adjacency. The movement of the arms toward each other is counteracted by a third elastomeric insert 16 acting as a spring therebetween.
REFERENCES:
patent: 3207200 (1965-09-01), Boussu et al.
patent: 3292681 (1966-12-01), Travers
patent: 3717190 (1973-02-01), Boileau
patent: 3954131 (1976-05-01), Hoshino et al.
patent: 4193437 (1980-03-01), Powell
patent: 4282918 (1981-08-01), Tomoda et al.
patent: 4396051 (1983-08-01), Ogawa et al.
patent: 4779658 (1988-10-01), Lawabata et al.
patent: 4790365 (1988-12-01), Sandstrom et al.
Ball Michael W.
Krawczyk Nancy T.
Pirelli Coordinamento Pneumatici S.p.A.
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