Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D53/00—Tractor-trailer combinations; Road trains
  • B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
  • B62D53/08—Fifth wheel traction couplings
  • B62D53/12—Fifth wheel traction couplings engaging automatically
  • B62D53/125—Fifth wheel traction couplings engaging automatically with simultaneous coupling of the service lines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60D—VEHICLE CONNECTIONS
  • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
  • B60D1/58—Auxiliary devices
  • B60D1/62—Auxiliary devices involving supply lines, electric circuits or the like
  • B60D1/64—Couplings or joints therefor

Definitions

• the invention relates to a fifth wheel coupling for the coupling of a tractor unit with a semi-trailer, with a fifth wheel plate, a kingpin with an inner bore with an outer coupling or engagement surface and with connections for connecting electrical and pneumatic supply lines between the tractor unit and the semi-trailer, wherein the supply lines of the tractor unit to a plug part of a supply part and the supply lines from a socket part inside the kingpin to the intended locations on the semitrailer, the plug part is extendable from the supply part and retractable into the socket part, and the plug part is rotatable in relation to the socket part ,
• the invention is based on the object of designing a fifth wheel coupling of the type mentioned at the outset such that the kingpin has such a strength that the normally required operating license can be obtained from the approval authorities and electrically correct connections between the plug and the socket are possible.
• the engagement surfaces of these nested bushings lie in an area which is arranged radially inward of the coupling or engagement surface of the kingpin, i.e. an area where little or hardly any relative movements take place when the semitrailer is maneuvered by the tractor unit.
• the sockets for all lines are arranged coaxially to one another so that the compressed air lines are connected to each other outside to the electrical lines. This enables the areas of the electrical connections to be cleaned with compressed air blows before the plug is inserted into the socket part. This is an advantage that should not be neglected in the rough operation.
• the radially largest bushing or the inner bore surface of the kingpin is dimensioned such that its diameter is at most half the outer diameter of the coupling or engagement surface of the kingpin. With this dimensioning it can be achieved that the mechanical requirements that are placed on kingpins are met.
• FIG. 1 shows a cross-sectional view through the kingpin of a semitrailer and the supply part of a tractor.
• FIG. 2 is an enlarged representation from FIG. 1.
• the interacting parts namely the kingpin and the supply part, are shown in the figures shortly before the actual coupling process.
• the coupling pin 20 of the semitrailer is shown in the upper area, while the supply part 10 of the tractor unit is shown in the lower area.
• the coupling pin 20 is fastened to the semitrailer, it arrives in the mouth opening of the saddle plate during the coupling process and the mechanical connection between the tractor unit and the semitrailer is accomplished via parts which are known in the so-called coupling or engagement area 30 of the coupling pin 20 Intervene wisely.
• the supply part 10 will be arranged centrally below the coupling pin 20, and by extending the plug part 100 into a socket part 200 of the king pin 20, the desired conditions are established.
• the radially largest socket 11 of the plug part 100 is inserted into the inner bore 21 of the kingpin 20 and sealed to the outside.
• compressed air can be drawn from the saddle in an annular cylinder space in this way. Tractor can be transferred to the semitrailer.
• a further annular space for transmitting pressure is created within the bush 12 and radially outside the bush 23.
• the sockets 13 and 24 and 14 and 15 and 25 work together in a corresponding manner to create electrical connections which are suitable either for the transmission of digital data or of DC voltage.

Landscapes

• Engineering & Computer Science (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
• Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)
• Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Branch Pipes, Bends, And The Like (AREA)
• Agricultural Machines (AREA)
• Vehicle Body Suspensions (AREA)
• Details Of Connecting Devices For Male And Female Coupling (AREA)

Priority Applications (7)

Applications Claiming Priority (6)

Publications (2)

Family

ID=27213832

Family Applications (1)

Country Status (11)

Cited By (5)

Families Citing this family (19)

Family Cites Families (6)

• 2000
  • 2000-12-19 PT PT00992073T patent/PT1240067E/pt unknown
  • 2000-12-19 AT AT00992073T patent/ATE236039T1/de active
  • 2000-12-19 CN CNB008175713A patent/CN1211243C/zh not_active Expired - Fee Related
  • 2000-12-19 CA CA002394723A patent/CA2394723C/en not_active Expired - Lifetime
  • 2000-12-19 JP JP2001546520A patent/JP4633989B2/ja not_active Expired - Fee Related
  • 2000-12-19 ES ES00992073T patent/ES2195955T3/es not_active Expired - Lifetime
  • 2000-12-19 EP EP00992073A patent/EP1240067B1/de not_active Expired - Lifetime
  • 2000-12-19 US US10/168,681 patent/US6672608B2/en not_active Expired - Lifetime
  • 2000-12-19 DE DE50001666T patent/DE50001666D1/de not_active Expired - Lifetime
  • 2000-12-19 MX MXPA02006386A patent/MXPA02006386A/es active IP Right Grant
  • 2000-12-19 WO PCT/EP2000/012934 patent/WO2001046001A2/de not_active Ceased

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