{
  "$type": "site.standard.document",
  "description": "The coupling system consists of a stub -1- called a \"king pin\", with its support -2-, fixed to an inertia brake -3- disposed at the end of a tow bar - 4-, the rear end of which is fixed, in turn, to a support called a \"gooseneck\" -5-, which is fixed to a semi-trailer -6-, said assembly being…",
  "path": "/patents/999325",
  "publishedAt": "2012-08-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/08",
    "GRAU MAQUINARIA I SERVEI INTEGRAL S A [ES]"
  ],
  "textContent": "The coupling system consists of a stub -1- called a \"king pin\", with its support -2-, fixed to an inertia brake -3- disposed at the end of a tow bar - 4-, the rear end of which is fixed, in turn, to a support called a \"gooseneck\" -5-, which is fixed to a semi-trailer -6-, said assembly being completed by a parking brake -7- fixed to the side or on top of the tow bar -4-. As the \"king pin\" stub -1- approaches it is immediately fixed in a central recess -9- in the \"fifth wheel\" -10-, disposed at the rear of the tractor vehicle chassis - 8-, enabling fast uncoupling for interchanging the semi-trailer -6-.",
  "title": "A system for coupling semi-trailers to C1 class tractor vehicles"
}