Tire with tread having projecting portion projecting from groove bottom of circumferential groove
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United States of America Patent
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Sep 30, 2014
Grant Date -
Nov 8, 2012
app pub date -
Nov 10, 2010
filing date -
Nov 16, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a tire 1, a central land portion row 20C and intermediate land portion rows 20M are formed by center-side main grooves 10C. A projecting portion 50 projecting outwardly in a tire radial direction TR from a groove bottom surface 11 of the center-side main groove 10C is provided in the central groove 10C. The projecting portion 50 is located on an extension line L1 extending in an extending direction of lug grooves 30M, and extends outwardly in the tread width direction TW from a sidewall 21 of the central land portion row 20C. An inner end height H1 of the projecting portion 50 located on an innermost side thereof in the tread width direction TW and continuous to the central land portion row 20C is greater than an outer end height H2 of the projecting portion 50 located on an outermost side thereof in the tread width direction TW.
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