{
  "$type": "site.standard.document",
  "description": "Provided is a steel cord for rubber article reinforcement, which has both the tensile strength in the cord axial direction and the strength in the shear direction at higher levels. A steel cord () for rubber article reinforcement includes: a single core strand () having a layer-twisted structure…",
  "path": "/patents/1273273",
  "publishedAt": "2020-10-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "D07B1/0626",
    "BRIDGESTONE CORPORATION"
  ],
  "textContent": "Provided is a steel cord for rubber article reinforcement, which has both the tensile strength in the cord axial direction and the strength in the shear direction at higher levels. A steel cord () for rubber article reinforcement includes: a single core strand () having a layer-twisted structure; and plural sheath strands () each having a layer-twisted structure, and the sheath strands () are twisted around the core strand (). In the sheath strands (), a ratio between the diameter of a core filament () and the diameter of a sheath filament () is 0.75 to 0.85, and a ratio between the strength of the core filament () and the strength of the sheath filament () is 0.55 to 0.7.",
  "title": "STEEL CORD FOR RUBBER ARTICLE REINFORCEMENT, AND TIRE"
}