{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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  "description": "This coupling unit consists of a pair of front links (8) and a pair of rear links (9) pivoting on a frame (6) fixed to the tractor (2). The free ends of the front and rear links (8,9) are connected to a coupling shaft (12) at the rear of which is a coupling hook (13). In order to adjust the…",
  "path": "/patents/1113021",
  "publishedAt": "2001-05-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60D1/465",
    "SAUERMANN HANS [DE]"
  ],
  "textContent": "This coupling unit consists of a pair of front links (8) and a pair of rear links (9) pivoting on a frame (6) fixed to the tractor (2). The free ends of the front and rear links (8,9) are connected to a coupling shaft (12) at the rear of which is a coupling hook (13). In order to adjust the position of the coupling hook, the rear of the coupling shaft is connected to hydraulic cylinders (17) whose upper ends pivot on a bearing (20) mounted on a gear box (5).",
  "title": "Coupling device for an automotive vehicle"
}