{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A tyre comprises a tread portion (2) in which a mould parting line by a single-split mould runs on or near the tyre equator (CO). In a central part (2C) of the tread portion in which tread grooves (4) are provided, the groove edges which are stroked by tyre mould's protrusions for making the tread…",
  "path": "/patents/1112358",
  "publishedAt": "2001-06-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0309",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A tyre comprises a tread portion (2) in which a mould parting line by a single-split mould runs on or near the tyre equator (CO). In a central part (2C) of the tread portion in which tread grooves (4) are provided, the groove edges which are stroked by tyre mould's protrusions for making the tread grooves (4) when the mould is opened are provided with a chamfer backed by a recess and/or the groove walls extending from such groove edges are provided with a variable inclination, whereby demoulding defects can be reduced.",
  "title": "Tyre"
}