{
  "$type": "site.standard.document",
  "description": "In a tire , in a normal state, a profile of a tread surface includes a crown circular arc as a circular arc representing a profile of a portion including an equator PC, and the crown circular arc has a radius of not less than 1600 mm and not greater than 2000 mm. On a ground-contact surface…",
  "path": "/patents/1294125",
  "publishedAt": "2021-07-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0332",
    "SUMITOMO RUBBER INDUSTRIES, LTD."
  ],
  "textContent": "In a tire , in a normal state, a profile of a tread surface includes a crown circular arc as a circular arc representing a profile of a portion including an equator PC, and the crown circular arc has a radius of not less than 1600 mm and not greater than 2000 mm. On a ground-contact surface obtained when a load is applied to the tire in the normal state and the tread surface is brought into contact with a flat road surface, an ultra-light load shape index F is higher than a light load shape index F, the ultra-light load shape index F is not less than 1.10 and not greater than 1.20, and the light load shape index F is not less than 1.04 and not greater than 1.14.",
  "title": "HEAVY DUTY TIRE"
}