{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "Pneumatic tire of which the stiffness of tread blocks is improved in a circumferential direction, wherein first grooves (11) of first block (20) with a short pitch length are formed to have a depth shallower than the depth second grooves (21) of a second block (20) and the stiffness of the first…",
  "path": "/patents/950906",
  "publishedAt": "2015-05-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0306",
    "HANKOOK TIRE CO LTD [KR]"
  ],
  "textContent": "Pneumatic tire of which the stiffness of tread blocks is improved in a circumferential direction, wherein first grooves (11) of first block (20) with a short pitch length are formed to have a depth shallower than the depth second grooves (21) of a second block (20) and the stiffness of the first blocks is similar to the stiffness of the second blocks; further, a first angle of the groove walls of the first grooves (11) is larger than a second angle of the groove walls of the second grooves (21); accordingly, there is an effect of improving the braking performance or grip performance of a tire by making the stiffness of the tire uniform in the circumferential direction of the tire.",
  "title": "Pneumatic tire"
}