{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "To improve water evacuation property while preventing uneven wear, as well as to significantly improve the on-ice/snow performances by optimizing a tread pattern. This pneumatic tire has, in at least a part of a tread portion 1, a small block group G B , the small block group including a plurality…",
  "path": "/patents/1006957",
  "publishedAt": "2011-12-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/033",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "To improve water evacuation property while preventing uneven wear, as well as to significantly improve the on-ice/snow performances by optimizing a tread pattern. This pneumatic tire has, in at least a part of a tread portion 1, a small block group G B , the small block group including a plurality of small blocks 3 arranged close together. The small block group G B comprises at least one circumferential main groove positioned 4 including see-through groove portion which linearly extends in the tread circumferential direction and at least one rib-like land portion 6 provided adjacently to the circumferential main groove and forming a groove side face 5 of the circumferential main groove 4 and continuously extending in the circumferential direction. A number density D of the small blocks is set within a range of 0.003 to 0.04 (pieces/mm 2 ), the number density D representing the number of the small blocks per unit of an actual ground contact area of the small block group.",
  "title": "PNEUMATIC TIRE"
}