Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1991-01-30
1991-08-27
Knable, Geoffrey L.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152531, 152538, B60C 300, B60C 928
Patent
active
050425455
ABSTRACT:
A pneumatic radial tire comprising a carcass layer, a tread portion and a belt layer disposed therebetween, the belt layer having a structure composed of at least two layers, wherein the belt layer is formed at least at a central portion of the cross section thereof to have a parallel portion substantially parallel to the axis of rotation of the tire over a width corresponding to 30 to 50% of the maximum width of the belt layer; and the carcass layer is formed in such a manner that when the tire is mounted on a rim and filled with air to 10% of a normal internal pressure, a portion corresponding to the parallel portion of the belt layer has a profile of a carcass line joined parallel to the parallel portion and a portion tangentially extending from the edge of the parallel portion and leading through the maximum width portion of the tire to at least the upper edge of a bead filler has a profile of a carcass line comprising arcs having substantially the same radius of curvature.
REFERENCES:
patent: 3292681 (1966-12-01), Travers
patent: 3677319 (1972-07-01), Mirtain
patent: 4282918 (1981-08-01), Tomoda et al.
patent: 4669519 (1987-06-01), Togashi et al.
patent: 4884610 (1989-12-01), Saito
Kabe Kazuyuki
Takahashi Ken
Knable Geoffrey L.
The Yokohama Rubber Co. Ltd.
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