{
  "$type": "site.standard.document",
  "description": "Provided is a heavy-duty tire comprising a tread part comprising circumferential grooves, wherein the tread part at least comprises three layers (11,12,13), and wherein Dt is 0.80 or more, t1/H is 0.90 or less, S1/S2 is less than 1.0, and S2×Dt is greater than 10.0, where a tire outer diameter is…",
  "path": "/patents/1391638",
  "publishedAt": "2025-06-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C1/0016",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "Provided is a heavy-duty tire comprising a tread part comprising circumferential grooves, wherein the tread part at least comprises three layers (11,12,13), and wherein Dt is 0.80 or more, t1/H is 0.90 or less, S1/S2 is less than 1.0, and S2×Dt is greater than 10.0, where a tire outer diameter is referred to as Dt, in m, a thickness of the first layer (11) is referred to as t1, in mm, a groove depth at a deepest part of the circumferential grooves is referred to as H, in mm, a content of silica based on 100 parts by mass of a rubber component in a rubber composition constituting the first layer (11) is referred to as S1, in parts by mass, and a content of silica based on 100 parts by mass of a rubber component in a rubber composition constituting the second layer (12) is referred to as S2, in parts by mass.",
  "title": "HEAVY-DUTY TIRE"
}