{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "In a pneumatic tire, a rim R has a rim diameter RD of 12 to 17 inches. A ratio SH/SW of a tire cross-sectional height SH to a tire cross-sectional width SW is 0.30 to 0.45. A ratio RW/SW of a rim width RW of the rim to the tire cross-sectional width SW is 0.78 to 0.99. A complex elastic modulus E*…",
  "path": "/patents/1387643",
  "publishedAt": "2025-12-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/005",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "In a pneumatic tire, a rim R has a rim diameter RD of 12 to 17 inches. A ratio SH/SW of a tire cross-sectional height SH to a tire cross-sectional width SW is 0.30 to 0.45. A ratio RW/SW of a rim width RW of the rim to the tire cross-sectional width SW is 0.78 to 0.99. A complex elastic modulus E* 1 (MPa) of a cap rubber layer 15 is larger than a complex elastic modulus E*2 (MPa) of a base rubber layer 16. In belt plies, a plurality of belt cords 7c having a bending stiffness M (g·cm) are arranged so as to have a number n of the belt cords per ply width of 5 cm. The complex elastic modulus E*1, the complex elastic modulus E*2, the bending stiffness M, and the number n satisfy a relationship of the following formula (1). M×n",
  "title": "PNEUMATIC TIRE"
}