{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A tread portion of a pneumatic tire includes inner land portions between outer circumferential main grooves and being divided into inner blocks by inner lateral grooves inclined at an angle ± of 10 to 40°. The inner lateral grooves consist of first inner lateral grooves and second inner lateral…",
  "path": "/patents/987997",
  "publishedAt": "2013-07-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0302",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A tread portion of a pneumatic tire includes inner land portions between outer circumferential main grooves and being divided into inner blocks by inner lateral grooves inclined at an angle ± of 10 to 40°. The inner lateral grooves consist of first inner lateral grooves and second inner lateral grooves which are alternately arranged in a circumferential direction. The first inner lateral grooves include a wide-width part and a narrow-width part wherein a groove depth of the narrow-wide part is smaller than a groove depth of the wide-width part . The second inner lateral grooves have a constricted part on a center side in a groove length direction and respective outer widened parts.",
  "title": "Pneumatic tire"
}