{
  "$type": "site.standard.document",
  "description": "The present invention relates to a pneumatic tire. A rim diameter RD is 10 to 18 inches. A ratio SH/SW of a cross-sectional height SH to a cross-sectional width SW is 0.30 to 0.45. A ratio RW/SW of a rim width RW to the cross-sectional width SW is 0.78 to 0.99. A width W1 (mm) of a tread surface of…",
  "path": "/patents/1386226",
  "publishedAt": "2026-01-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/005",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "The present invention relates to a pneumatic tire. A rim diameter RD is 10 to 18 inches. A ratio SH/SW of a cross-sectional height SH to a cross-sectional width SW is 0.30 to 0.45. A ratio RW/SW of a rim width RW to the cross-sectional width SW is 0.78 to 0.99. A width W1 (mm) of a tread surface of a first shoulder land portion 11 satisfies expression (1) described below. The width W1 (mm), a thickness T1 (mm) of a first rubber layer 21, a thickness T2 (mm) of a second rubber layer 22, a loss tangent tanδ1 at 30°C of the first rubber layer 21, and a loss tangent tan62 at 70°C of the second rubber layer 22 satisfy expression (2) described below. W1>0.001×SW×SHW1×T1×tanδ1+T2×tanδ2/T1+T2≤4",
  "title": "PNEUMATIC TIRE"
}