{
  "$type": "site.standard.document",
  "description": "A heavy duty pneumatic tire includes a tread portion provided with at least three circumferential main grooves, and a plurality of lateral grooves extending between adjacent main grooves or between one main groove and a tread edge, to form at least one block row comprising a plurality of blocks…",
  "path": "/patents/968979",
  "publishedAt": "2014-10-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0306",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A heavy duty pneumatic tire includes a tread portion provided with at least three circumferential main grooves, and a plurality of lateral grooves extending between adjacent main grooves or between one main groove and a tread edge, to form at least one block row comprising a plurality of blocks. The block row comprises a plurality of pitch elements each of which consists of circumferentially adjacent one lateral groove and one block. The tread portion has a land ratio in a range of from 70% to 80%. The block row comprises a number of pitch elements in a range of from 40 to 50, and each lateral groove has a groove width in a range of from 5% to 15% in relation to a circumferential length of the block in each pitch element.",
  "title": "Heavy duty pneumatic tire"
}