Pneumatic radial tire for passenger vehicle and method for using the same
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United States of America Patent
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Dec 6, 2016
Grant Date -
Oct 2, 2014
app pub date -
Nov 2, 2012
filing date -
Nov 2, 2011
priority date (Note) -
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Abstract
An object of the present invention is to adequately control relationship between a cross sectional width SW and an outer diameter OD of a pneumatic radial tire for a passenger vehicle. Specifically, a ground contact surface 1 of the tread of the pneumatic radial tire for a passenger car of the present invention is provided with either, as a groove, only at least one main groove 2a extending in the tread circumferential direction or, as grooves, only the main groove 2a and at least one auxiliary groove 2b other than the main groove, wherein the auxiliary groove has a groove width≦2 mm in a tread widthwise region and a negative ratio of the main groove 2a is in the range of 12% to 20% (inclusive of 12% and 20%).
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