{
  "$type": "site.standard.document",
  "coverImage": {
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    "mimeType": "image/png",
    "size": 77109
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  "description": "[Object] To provide a pneumatic tire 22 that allows a low fitting pressure to be achieved without impairing a tightening force. [Solution] The tire 22 includes a pair of beads 30 and a carcass 32 extending on and between both beads 30. Each bead 30 includes a core 48. The core 48 includes: a main…",
  "path": "/patents/938443",
  "publishedAt": "2016-08-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C15/02",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "[Object] To provide a pneumatic tire 22 that allows a low fitting pressure to be achieved without impairing a tightening force. [Solution] The tire 22 includes a pair of beads 30 and a carcass 32 extending on and between both beads 30. Each bead 30 includes a core 48. The core 48 includes: a main body 56 including a cord 60 extending in a circumferential direction; and a stretchable portion 58 formed from a crosslinked rubber. The stretchable portion 58 is located inward of the main body 56 in an axial direction. The stretchable portion 58 has a size with which at least one cross-section of the cord 60 can be included therein in a cross-section of the bead 30. Preferably, in the tire 22, the main body 56 includes a hard unit and a soft unit. The soft unit is located outward of the hard unit in a radial direction. A hard cord of the hard unit stretches more easily than a soft cord of the soft unit.",
  "title": "PNEUMATIC TIRE"
}