{
  "$type": "site.standard.document",
  "description": "The invention relates to a parking brake device (1; 1 a) of a pneumatic brake system of a commercial vehicle (21), in which a trailer vehicle (23) with its own pneumatic brake system with at least one brake can be coupled to a towing vehicle (22) with its own pneumatic brake system, with a parking…",
  "path": "/patents/949496",
  "publishedAt": "2015-08-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/683",
    "WABCO GMBH [DE]"
  ],
  "textContent": "The invention relates to a parking brake device (1; 1 a) of a pneumatic brake system of a commercial vehicle (21), in which a trailer vehicle (23) with its own pneumatic brake system with at least one brake can be coupled to a towing vehicle (22) with its own pneumatic brake system, with a parking brake actuating device (2, 3; 12) arranged on the towing vehicle (22), by means of which at least one parking brake of at least the towing vehicle (22) can be actuated, and with a trailer control valve (7; 15) arranged on the towing vehicle (22) and connected to the parking brake actuating device (2, 3; 12) via common brake pressure connections (L22, L43; L28.2, L43, L23, L1), by means of which pneumatic supply pressure can be supplied via a supply pressure connection (L12) to a supply coupling head (8) arranged on the towing vehicle (22) and to a brake coupling head (9), the pneumatic brake system of the trailer vehicle (23) being connectable to the brake system of the towing vehicle (22) by means of the coupling heads (8, 9). According to the invention, it is provided that between the trailer control valve (7, 15) arranged on the towing vehicle (22) and the coupling heads (8, 9) arranged on the towing vehicle (22), a valve device (10) fastened to the towing vehicle (22) is arranged, by means of which a pneumatic connection (L2) of the brake coupling head (9) can be connected either to a brake pressure connection (L22) of the trailer control valve (7; 15) or to a supply pressure connection (L12) of the trailer control valve (7; 15) and of the supply coupling head (8).",
  "title": "Parking brake device of a pneumatic brake system"
}