{
  "$type": "site.standard.document",
  "description": "Pneumatic tire including a sipe formed in a tread block capable of minimizing slippage on a snowy or icy road while increasing rigidity of the tread block, thereby significantly improving braking and steering performances on wet and dry roads. The sipe comprises a first and a second sipe wall…",
  "path": "/patents/964218",
  "publishedAt": "2015-01-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/12",
    "KUMHO TIRE CO INC [KR]"
  ],
  "textContent": "Pneumatic tire including a sipe formed in a tread block capable of minimizing slippage on a snowy or icy road while increasing rigidity of the tread block, thereby significantly improving braking and steering performances on wet and dry roads. The sipe comprises a first and a second sipe wall facing each other. The first sipe wall includes a plurality of upper protrusions extending from the surface of the tread block to a lower side thereof, a plurality of lower protrusions extending from the bottom of the sipe to an upper side thereof, and intermediate convex protrusions disposed between the upper and the lower protrusion in a radial direction of the tread block. The second sipe wall is formed with a phase difference of 1/2 of a pitch of the upper protrusion or the lower protrusion with respect to the first sipe wall so as to engage with the latter.",
  "title": "Pneumatic tire"
}