Radial carcass tire which can be particularly used without an in

Details Radial carcass tire which can be particularly used without an in Radial carcass tire which can be particularly used without an in

1984-05-03

1985-11-26

Boland, Lois E.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152DIG9, B60C 1502, B60C 1500

Patent

active

045549605

ABSTRACT:
A tire which can be used without an inner tube on a standard "safety" rim, each of the beads of which tire has, on the one hand, a base of a width L.sub.2, comprising essentially a cylindrical zone of diameter D.sub.2, equal to the diameter D.sub.1 of the cylindrical hump of the rim and having an axial width l.sub.23 which is between 0.15 L.sub.2 and 0.25 L.sub.2, and a frustoconical zone of an axial width l.sub.24 which is between 0.45 L.sub.2 and 0.65 L.sub.2, the generatrix of the frustoconical zone forming with the axis of rotation of the tire an angle .beta. such that tan .beta. is between 0.5 and 0.6, and, on the other hand, a reinforcing bead ring of an interior diameter D.sub.3 which is very little different from D.sub.1, the center O.sub.3 of a circle circumscribed around the cross section thereof being located at a distance L.sub.3 from the rim flange such that the clamp on the rim is at least equal to 0.45.

REFERENCES:
patent: 3302681 (1967-02-01), Travers
patent: 3524490 (1970-08-01), Verdier
patent: 3736974 (1973-06-01), Lejeune
patent: 3949800 (1976-04-01), Lejeune
patent: 4096900 (1978-06-01), Olsen
patent: 4148348 (1979-04-01), French et al.
patent: 4207940 (1980-06-01), Roger
patent: 4434831 (1984-03-01), Uemura
V. N. Laptev et al., "Design Aspects of the Bead Zone of Radial-Ply Tractor Tyres", Int. Polymer Sc. & Tech., vol. 3, No. 1, pp. T/73-T/74 (1976).

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