{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 72522
  },
  "description": "A tire 1 includes a circumferential direction main groove 100 extending in a circumferential direction on a tread surface, first and second circumferential direction supplemental grooves 210, 220 extending in the circumferential direction and located on both sides of the circumferential direction…",
  "path": "/patents/951232",
  "publishedAt": "2015-04-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0304",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "A tire 1 includes a circumferential direction main groove 100 extending in a circumferential direction on a tread surface, first and second circumferential direction supplemental grooves 210, 220 extending in the circumferential direction and located on both sides of the circumferential direction main groove 100 in a tread width direction, and first and second central land portions 310, 320 having a rib shape and formed between the circumferential direction main groove 100 and the first and second circumferential direction supplemental grooves 210, 220. The first and second central land portions 310,320 have plural width direction sipes 311, 321, respectively, and each of the width direction sipes 311, 321 extends to the circumferential direction main groove 100 to form an opened portion 312, 322, the circumferential direction main groove 100 has shallow grooved portions 110 and deep grooved portions 120 a depth of which from the tread surface is larger than the shallow grooved portions 110 , and a depth D1 of the shallow grooved portions 110 from the tread surface is smaller than a depth of the circumferential direction supplemental grooves from the tread surface.",
  "title": "TIRE"
}