{
  "$type": "site.standard.document",
  "description": "A pneumatic tire 1 according to the present invention comprises at least a land portion formed by a circumferential groove 3,5 extending in a tire circumferential direction. The land portion includes a land portion 11 having a groove side wall 17 forming the circumferential groove 3 and a land…",
  "path": "/patents/994938",
  "publishedAt": "2012-12-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0304",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "A pneumatic tire 1 according to the present invention comprises at least a land portion formed by a circumferential groove 3,5 extending in a tire circumferential direction. The land portion includes a land portion 11 having a groove side wall 17 forming the circumferential groove 3 and a land portion 15 having a groove side wall 19A forming the circumferential groove 3. The groove side wall 17 and the groove side wall 19A meander in the tire circumferential direction in a tread surface view. A groove width of the circumferential groove 3 in a tread width direction changes in predetermined cycles in the tire circumferential direction. The land portion 15 includes a wide land portion 21A in which a width of the land portion in the tread width direction is a predetermined width, and a narrow land portion 21B in which the width of the land portion in the tread width direction is narrower than the predetermined width. A surface of the wide land portion 21A is provided with a recess portion 23 recessed inward in a tire radial direction from a surface of the land portion 15.",
  "title": "TIRE"
}