{
  "$type": "site.standard.document",
  "description": "The present invention aims to improve the wet performance while securing steering stability and holding down degradations in noise performance to minimum, and for this purpose, a pneumatic tire (1) in which blocks (B) are disposed at intervals at a tread portion thereof is arranged in that concave…",
  "path": "/patents/1077360",
  "publishedAt": "2005-06-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/13",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "The present invention aims to improve the wet performance while securing steering stability and holding down degradations in noise performance to minimum, and for this purpose, a pneumatic tire (1) in which blocks (B) are disposed at intervals at a tread portion thereof is arranged in that concave blocks (B0) with stepped concave portions (10) that extend along block side edges, which face circumferential main grooves (3), and having a depth from a block top surface that corresponds to 20 to 70% of a block height are provided. The concave portions have a length in a tire circumferential direction of 40 to 95% of a length of the block side edges in the tire circumferential direction and a width in a tire axial direction of 2 to 20 mm.",
  "title": "Pneumatic tire"
}