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PNEUMATIC TIRE

  • US 20130160914A1
  • Filed: 10/03/2011
  • Published: 06/27/2013
  • Est. Priority Date: 10/15/2010
  • Status: Active Grant
First Claim
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1. A pneumatic tire comprisinga carcass extending from a tread portion through a sidewall portion to a bead core of a bead portion,a belt layer disposed radially outside of the carcass in the tread portion,a band layer disposed radially outside of the belt layer, anda belt-like noise damper attached to a radially inner surface of the tread portion and made of a sponge material extending in the tire circumferential direction;

  • whereinan axial width WA of said noise damper is in a range of from 40% to 70% of a ground contacting width TW of the tread portion;

    said band layer comprises two band plies made of organic fiber band cord spirally wound at an angle of not more than 10 degrees with respect to the tire circumferential direction, wherein the band layer includes an overlapping portion in which said two band plies are radially overlapped each other;

    said overlapping portion covers an axially outer region of the belt layer with a cover width WB in a range of from 10% to 25% of said ground contacting width TW of the tread portion;

    said overlapping portion has an axially outer end disposed in the same position or axially outwardly of an axially outer end F of the belt layer; and

    said overlapping portion has an axially inner end spaced an axial distance LC apart from an axially outer end E of said noise damper, wherein the distance LC is set in a range of from 5% to 20% of said ground contacting width TW of the tread portion.

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