{
  "$type": "site.standard.document",
  "description": "The tow coupling (10a) has a coupling unit (11a) which has a ball carrier (13) and a coupling ball (15a) for rotatable supporting of a coupling receiver (18) of a trailer hitch ball coupling (16) of a roll trailer (17). A rotary driving device (31a) is provided with a rotary drive body (30a) that…",
  "path": "/patents/1011942",
  "publishedAt": "2011-06-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60D1/06",
    "WESTFALIA AUTOMOTIVE GMBH [DE]"
  ],
  "textContent": "The tow coupling (10a) has a coupling unit (11a) which has a ball carrier (13) and a coupling ball (15a) for rotatable supporting of a coupling receiver (18) of a trailer hitch ball coupling (16) of a roll trailer (17). A rotary driving device (31a) is provided with a rotary drive body (30a) that is projected from the ball upper surface (23) in a contact position.",
  "title": "Trailer coupling with a sensor assembly and a rotating reciprocating rod"
}