{
  "$type": "site.standard.document",
  "description": "A tread (222) for a pneumatic tire, and a respective truck tire, comprises first and second circumferentially continuous grooves (20, 24); a central rib (30) interposed between said circumferentially continuous grooves, the central rib extending continuously around a circumference of the tread…",
  "path": "/patents/941968",
  "publishedAt": "2016-06-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0306",
    "GOODYEAR TIRE & RUBBER [US]"
  ],
  "textContent": "A tread (222) for a pneumatic tire, and a respective truck tire, comprises first and second circumferentially continuous grooves (20, 24); a central rib (30) interposed between said circumferentially continuous grooves, the central rib extending continuously around a circumference of the tread; first and second circumferentially extending shoulder ribs (34, 36) disposed laterally outside of the first and second circumferentially continuous grooves (20, 24). The central rib (30) has a plurality of circumferentially spaced sipes (40) arranged in first and second circumferential rows (1, 2). The sipes of the first row (1) extend between the first circumferentially continuous groove (20) and the circumferentially extending center groove (100), and the sipes of the second row (2) extend between the second circumferentially continuous groove (24) and the circumferentially extending center groove. As the tread wears, the circumferentially extending center groove (100) changes its width between a minimum and a maximum axial width.",
  "title": "TREAD FOR A PNEUMATIC TIRE"
}