B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/82
B60C 9/20 (2006.01) B60C 9/28 (2006.01)
Patent
CA 1058494
Abstract of the Disclosure A pneumatic rubber tire for off-road vehicles comprising a multi-layered carcass and a breaker circumfer- entially superimposed about the carcass is disclosed. The carcass is composed of rubberized plies each containing cords formed of organic fiber and inclined at a given angle with respect to the circumferential direction of tire. The cords of approximately one-half of the carcass plies extend in an opposite direction to the cords associated with the remaining plies to define a bias construction. The breaker is composed of at least two rubberized layers containing reinforcing elements with different properties embedded therein. The reinforcing element in one of the breaker layers is composed of a helically formed filament of material having a tensile strength of not less than 140 kg/mm2 or a bundle thereof together without twisting and has a modulus of elasticity of 0.6 to 70 times higher than that of the organic fiber cords of the carcass ply. The reinforcing element in another breaker layer is composed of a stranded cord of metallic filaments each having a tensile strength equal to or larger than that of steel and inclined in the circumferential direction of tire at an angle of not larger than 8° and not smaller than 15° with respect to the given angle of the cords in the carcass plies which are aligned with the stranded cord.
284985
Abe Masaru
Miyoshi Isao
Tezuka Toshiro
LandOfFree
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