{
  "$type": "site.standard.document",
  "description": "A coupling head unit according to the invention comprises a supply connection (2), a control connection (3), a supply outlet (4) connected to the supply connection (2), a control outlet (6) connected via a connecting line (9) to the supply outlet (4), and an actuating element (14) which, depending…",
  "path": "/patents/950292",
  "publishedAt": "2015-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T15/24",
    "SCHMITZ CARGOBULL AG [DE]"
  ],
  "textContent": "A coupling head unit according to the invention comprises a supply connection (2), a control connection (3), a supply outlet (4) connected to the supply connection (2), a control outlet (6) connected via a connecting line (9) to the supply outlet (4), and an actuating element (14) which, depending on the coupling state and the pressurization of the control line (S), blocks or releases the connecting line (9). This is permanently connected to the control connection (3) and has an actuator (15) which, when the control connection (3) is pressurized, moves into a blocking position blocking the connecting line and, when the control connection (3) is depressurized, moves into a neutral position releasing the connecting line (9) between the supply connection (2) and the control outlet (6). Likewise, a first check valve (10) is present which, when the first actuating element (14) is in neutral position and the supply connection (2) is pressurized, separates the control connection (3) and the control outlet (6) and releases a connection between the connecting connection (2) and the control outlet (6), which, when the control connection (3) is pressurized, releases the connection between the control connection (3) and the control outlet (6) and interrupts the connection between the supply connection (2) and the control outlet (6). Furthermore, a second actuating element (17) is provided which, when the supply connection (2) is pressurized, is in a blocking position in which, when the control line (S) is simultaneously pressurized and coupled, it blocks the first actuating element (14) in its blocking position, and which, when the supply line (V) is depressurized, is in a neutral position in which the first actuating element (14) is released.",
  "title": "Coupling head unit for a commercial vehicle and method for coupling a supply line and a control line to a pneumatically operated brake system"
}