{
  "$type": "site.standard.document",
  "description": "A pneumatic tire includes a tread surface (11) on which a plurality of circumferential groove portions (50) is formed. From among the circumferential groove portions (50), a circumferential groove portion (50) situated closest to a shoulder portion side (42) in a tire width direction has a center…",
  "path": "/patents/1070592",
  "publishedAt": "2006-01-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0306",
    "YOKOHAMA RUBBER CO LTD [JP]"
  ],
  "textContent": "A pneumatic tire includes a tread surface (11) on which a plurality of circumferential groove portions (50) is formed. From among the circumferential groove portions (50), a circumferential groove portion (50) situated closest to a shoulder portion side (42) in a tire width direction has a center of a groove-bottom innermost portion at a portion where a groove width in at least a tire circumferential direction is the narrowest, positioned closer to an equatorial surface (90) in the tire width direction than a center of the groove width. An angle between a virtual extension portion (80) of the tread surface (11) and a groove wall (60) on the equatorial surface side (90) is equal to or less than an angle between the virtual extension portion of (80) the tread surface (11) and a groove wall (60) on the shoulder portion side (42).",
  "title": "Pneumatic tire"
}