{
  "$type": "site.standard.document",
  "description": "A tire noise reducing system comprises a pneumatic tire (2) with a hollow, a wheel rim (3) on which the tire is mounted so that said hollow forms a closed cavity (4), and a noise damper (5) disposed in the closed cavity, wherein the noise damper is formed by fixing a strip of a porous material to…",
  "path": "/patents/1075405",
  "publishedAt": "2005-08-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B29D30/0654",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A tire noise reducing system comprises a pneumatic tire (2) with a hollow, a wheel rim (3) on which the tire is mounted so that said hollow forms a closed cavity (4), and a noise damper (5) disposed in the closed cavity, wherein the noise damper is formed by fixing a strip of a porous material to the tire or wheel rim, the noise damper (5) has a volume in a range of from 0.4 to 20 % of the volume of the cavity (4), the noise damper has a sectional shape substantially constant in the tire circumferential direction, and the pneumatic tire comprises a tread portion (2t) provided with tread grooves (G1-G4) defining a tread pattern having a sea ratio of 20 to 35 %.",
  "title": "Tire noise reducing system"
}