{
  "$type": "site.standard.document",
  "description": "A tire (1) includes a tread portion (2) provided with a block (3); a block corner portion (5) of the block (3) has a stepped chamfered portion (7) formed therein in which a block height decreases stepwise from a tread surface (3a) toward a top portion (3b); the stepped chamfered portion (7)…",
  "path": "/patents/1405507",
  "publishedAt": "2024-09-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/03",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A tire (1) includes a tread portion (2) provided with a block (3); a block corner portion (5) of the block (3) has a stepped chamfered portion (7) formed therein in which a block height decreases stepwise from a tread surface (3a) toward a top portion (3b); the stepped chamfered portion (7) includes upper surfaces (10) parallel to the tread surface (3a), and step corner portions (12) each formed so as to protrude toward a block outer side as a result of the upper surface (10) and a vertical surface (11) or the vertical surface (11) and the tread surface (3a) intersecting each other; an angle (θ1) between the tread surface (3a) and a virtual straight line (n3) connecting the step corner portions (12) in a vertical cross-sectional view, of the block corner portion (5), passing through the top portion (3b) is 10 to 40 degrees.",
  "title": "TIRE"
}