{
  "$type": "site.standard.document",
  "description": "The tire comprises a widthwise narrow groove . The center-side narrow groove portion is formed, from groove opening side to groove bottom side, in a shape of a continuous series of: a narrow section including the groove opening; a tapered section where the groove width increases toward the groove…",
  "path": "/patents/1372889",
  "publishedAt": "2025-01-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/03",
    "BRIDGESTONE CORPORATION"
  ],
  "textContent": "The tire comprises a widthwise narrow groove . The center-side narrow groove portion is formed, from groove opening side to groove bottom side, in a shape of a continuous series of: a narrow section including the groove opening; a tapered section where the groove width increases toward the groove bottom; a wide straight section extending in the groove depth direction with a constant groove width and having a groove width greater than that of the narrow section; and an arc-shaped section including the groove bottom, and the shoulder-side narrow groove portion is formed, from groove opening side to groove bottom side, in a shape of a continuous series of: a narrow section including the groove opening; a tapered section where the groove width increases toward the groove bottom; and an arc-shaped section including the groove bottom.",
  "title": "TIRE"
}