Pneumatic Radial Tire for Use on Passenger Car
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United States of America Patent
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Issued Date -
Apr 23, 2015
app pub date -
May 20, 2013
filing date -
May 24, 2012
priority date (Note) -
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Abstract
A pneumatic radial tire for use on a passenger car of the present technology includes a main belt layer in which belt plies with steel cords embedded at an angle of 15° to 45° with respect to a tire circumferential direction are overlapped in two layers in mutually crossing directions on an outer side in a tire radial direction of a carcass layer of a crown region, wherein, as a belt auxiliary layer, plies with steel cords embedded at an angle of 80° to 90° with respect to a tire circumferential direction are disposed between a carcass layer and an inner side main belt layer so that a portion of the plies is in a position separated 30 mm to the tire equator side, respectively, from both ends in a width direction of the narrow width main belt layer.
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