{
  "$type": "site.standard.document",
  "description": "A pneumatic tire comprises a carcass (6) extending between the bead portions (4) and a band (9) disposed radially outside the carcass in a tread portion (2) and made of at least one cord laid at an angle of not more than 5 degrees with respect to the tire equator, and the band cord is made of steel…",
  "path": "/patents/1099321",
  "publishedAt": "2003-01-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C9/0057",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A pneumatic tire comprises a carcass (6) extending between the bead portions (4) and a band (9) disposed radially outside the carcass in a tread portion (2) and made of at least one cord laid at an angle of not more than 5 degrees with respect to the tire equator, and the band cord is made of steel filaments twisted together so as to have a variable elasticity modulus which has a transitional point from under 1000kgf/sq.mm to over 1000kgf/sq.mm at an elongation percentage in a range of from 1% to 5%. Preferably, the average elasticity modulus ELn of the cord from zero elongation to the transitional point is in a range of from 500 to 750kgf/sq.mm, and the average elasticity modulus EHn of the cord from the transitional point to a breaking point of the cord is in a range of from 1200 to 3000kgf/sq.mm.",
  "title": "Pneumatic tire"
}