HEAVY LOAD PNEUMATIC TIRE
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United States of America Patent
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Issued Date -
Jan 14, 2016
app pub date -
Mar 28, 2014
filing date -
Mar 28, 2013
priority date (Note) -
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Abstract
In a heavy load pneumatic tire, a belt includes an intersecting belt layer formed by layering a pair of belt plies and an angled belt layer formed by at least one belt ply. 10°<θ1<25° and 15°<θ2−θ1<25°, where θ1 and θ2 are the angles of inclination of belt cords respectively in the belt intersecting belt layer and the angled belt layer. The carcass shape is formed by connecting two arcs with different radii of curvature. R1>R2, where R1 and R2 are respective radii of curvature of inner and outer arcs in the tire width direction. The distance, measured along the tire width direction from the tire equatorial plane, to the intersection of the inner and outer arcs is 80% or more of the similarly-measured distance of the overlapping range between belt plies in the intersecting belt layer.
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