{
  "$type": "site.standard.document",
  "description": "A pneumatic tire with a specified rotational direction comprises, a tread portion provided with a pair of circumferentially extending crown main grooves disposed on both sides of the tire equator, a plurality of inclined lateral grooves each extending axially outside of the tire from each crown…",
  "path": "/patents/991158",
  "publishedAt": "2013-05-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/01",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A pneumatic tire with a specified rotational direction comprises, a tread portion provided with a pair of circumferentially extending crown main grooves disposed on both sides of the tire equator, a plurality of inclined lateral grooves each extending axially outside of the tire from each crown main groove to each tread edge toward the anti-rotational direction to separate a plurality of shoulder blocks between crown main grooves and tread edges, and a sipe, inclined lateral grooves with inclinations of 45-85 degrees with respect to the tire circumferential direction, each shoulder block with a heel-side edge and a toe-side edge which comes into contact with a road later than the heel-side edge in the specified rotational direction, in a planer view, the heel-side edge smoothly extending in a curved manner from a first end intersecting a groove wall of the crown main groove to a second end intersecting the tread edge through a middle point which is a center between the first and second end in the axial direction of the tire, the heel-side edge with a radius of curvature of from 150-250 mm which is measured as a radius of curvature of an arc passing through the first end, the second end and the middle point, and all sipe provided on shoulder blocks terminate without connecting to heel-side edges.",
  "title": "Pneumatic tire"
}