{
  "$type": "site.standard.document",
  "description": "Provided is a press die for molding a sipe blade which can efficiently mold a sipe blade having a complicated shape such as three-dimensional shape and having excellent mechanical strength characteristics and which can reduce production cost due to its simple structure, and further provided is a…",
  "path": "/patents/1101303",
  "publishedAt": "2002-10-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B21D37/20",
    "NGK INSULATORS LTD [JP]"
  ],
  "textContent": "Provided is a press die for molding a sipe blade which can efficiently mold a sipe blade having a complicated shape such as three-dimensional shape and having excellent mechanical strength characteristics and which can reduce production cost due to its simple structure, and further provided is a method for simply and efficiently making a press die for molding a sipe blade having a complicated shape such as a three-dimensional shape by a casting method. The press die 10 for molding the sipe blade of the present invention is composed of a pair of the divided parts composing a press die 1 and 2, and a material 3 for the sipe blade is interposed and pressed between the pair of the divided parts composing a press die to mold a sipe blade 4 having a desired shape, and is characterized in that portions 1a and 2a to which is applied a load caused by a molding pressure in contact with the material 3 for the sipe blade for giving a desired shape to the sipe blade 4 have the shapes corresponding to a desired shape of the sipe blade 4, and portions 1b and 2b to which is not applied a load caused by molding pressure without contacting with the material 3 for the sipe blade are provided with first relief parts 5 which do not correspond to the desired shape of the sipe blade 4 and do not substantially contact with the sipe blade after molded.",
  "title": "Press die for molding sipe blade and method for making the press die"
}