{
  "$type": "site.standard.document",
  "description": "A tire includes a tread portion including circumferential main grooves extending in a tire circumferential direction; and a belt layer including belt plies. The belt layer includes a circumferential reinforcing layer disposed between a pair of cross belts, having a width in a tire width direction…",
  "path": "/patents/1389160",
  "publishedAt": "2026-06-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C9/20",
    "The Yokohama Rubber Co., LTD."
  ],
  "textContent": "A tire includes a tread portion including circumferential main grooves extending in a tire circumferential direction; and a belt layer including belt plies. The belt layer includes a circumferential reinforcing layer disposed between a pair of cross belts, having a width in a tire width direction smaller than a width of the cross belts, and having an inclination angle of the belt cords with respect to the tire circumferential direction of 5 degrees or less. The tread portion includes a shoulder portion narrow groove disposed on an outer side in the tire width direction of a circumferential main groove and extending in the tire circumferential direction. A distance WC from a tire equatorial plane to an end portion in the tire width direction of the circumferential reinforcing layer and a distance WN from the tire equatorial plane to the shoulder portion narrow groove satisfy 0.50≤WC/WN≤0.90.",
  "title": "TIRE"
}