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WO1992011172A1 - Fifth wheel - Google Patents

Fifth wheel Download PDF

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Publication number
WO1992011172A1
WO1992011172A1 PCT/CH1991/000263 CH9100263W WO9211172A1 WO 1992011172 A1 WO1992011172 A1 WO 1992011172A1 CH 9100263 W CH9100263 W CH 9100263W WO 9211172 A1 WO9211172 A1 WO 9211172A1
Authority
WO
WIPO (PCT)
Prior art keywords
hand lever
coupling
wheel
lever
claw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CH1991/000263
Other languages
German (de)
French (fr)
Inventor
Hans Kopp
Lothar Jakob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Fischer AG filed Critical Georg Fischer AG
Publication of WO1992011172A1 publication Critical patent/WO1992011172A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B62D53/0885—Comprising devices to limit or to compensate for wear or excessive play; Lubricating, shock absorbing, bearing devices, or the like

Definitions

  • the invention relates to a fifth wheel coupling according to the preamble of claim 1.
  • the object of the present invention is to create a fifth wheel coupling of the type mentioned at the outset, in which increasing play in the locking mechanism can be eliminated by wear.
  • the fifth wheel coupling u comprises a coupling plate 1 with an insertion slot 2, which is partially closed on the bottom, which ends in a semicircular recess 3 which is central to the coupling plate 1 and which serves to receive a towing hitch pin 4 of a semi-trailer.
  • a locking mechanism 5 has a coupling claw 6 and a locking lever 7 which is operatively connected to a hand lever 8.
  • the coupling claw 6 is pivotally mounted about a pivot point 9, has a semicircular recess 10 and is used to hold the kingpin 4 inserted through the insertion slot 2.
  • a tension spring 20 acts on the coupling claw for its opening movement.
  • the locking lever 7 is pivotally mounted at one end about a pivot point 11 and articulated at the other end via a threaded pin 12 to the hand lever 8, the threaded pin 12 being threaded into an internal thread 13 of the hand lever 8.
  • a locking cam 14 Arranged on the locking lever 7 is a locking cam 14 with a preferably inclined or curved contact surface 15, against which the coupling claw 6 rests in the engaged position.
  • the hand lever 8 has a handle 16 at its outer end and spaced from it a stop surface 17 and subsequently an anti-rotation device 18, the anti-rotation device 18 being designed as a rod-shaped part fastened along the hand lever and as a lock for the play. Position serves.
  • a spring 21 acts on the locking lever 7 and presses the stop surface 17 against a contact surface 19 or 19a of the clutch plate 1.
  • the adjustment of the play between the king pin 4 and the coupling claw 6 or the recess 3 on the clutch plate 1 takes place in the closed position or driving position 30 with the king pin 4 retracted or a control pin.
  • the hand lever 8 is pivoted out of the position 30 shown in dash-dotted lines in FIG. 1 and brought into the illustrated setting position 31.
  • the abutment surface 17 comes to rest against the contact surface 19 of the clutch plate 1.
  • this position of the hand lever 8 this can be rotated about its axis according to arrow 32, since the anti-rotation device 18 is released by the pivot position according to position 31, i.e. the anti-rotation device 18 cannot strike the clutch plate 1.
  • the locking claw 14 moves the clutch claw 6 against the kingpin 4 until there is no more play between the kingpin 4 and the clutch claw 6 or the recess 3 on the clutch plate 1.
  • the hand lever is brought into the unlocking position 35 in a known manner, the lock between the locking cam 14 and the coupling claw 6 being released by pivoting the locking lever 7. Even in this position of the hand lever 8, it is not possible to change the play because of the anti-rotation device 18, which is likewise not possible in the retracted position 34 of the hand lever.
  • the wear compensation according to the invention does not require any additional separate actuation mechanisms and that an adjustment of the play when engaging, disengaging or in the driving position is not possible. It is also advantageous that when the hand lever is returned to the operative position 30, a technically required minimum play between the locking parts 3, 6 and the king pin 4 is automatically established.
  • the functionality of the adjustment is not impaired even if the thread on the threaded pin 12 is dirty and damaged, since the thread which is protected in the internal thread 13 of the hand lever 7 is always threaded out for the adjustment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The hand lever (8) for the locking mechanism (5) of a fifth wheel can pivot between a closure position (30) and an adjustment position (31). In this position, the locking lever (7) can be pivoted by rotating the hand lever (8) over a threaded stem (12), so that a coupling claw (6) that lies against a locking cam (14) is adjusted in relation to the run-in semi-trailer fifth-wheel coupling pin (4), in order to eliminate any play. When the hand lever (8) is pivoted back into the closure position (30), predetermined minimum play between the semi-trailer fifth-wheel coupling pin (4), the coupling claw (6) and a semi-circular recess (3) is set automatically.

Description

Sattel upplunαSaddle upplunα

Die Erfindung betrifft eine Sattelkupplung nach dem Ober¬ begriff von Anspruch 1.The invention relates to a fifth wheel coupling according to the preamble of claim 1.

Derartige Sattel upplungen sind bekannt (z.B. DE-Al- 3330073) , wobei alle bekannten Konstruktionen den Nach¬ teil haben, dass bei Verschleiss am Zugsattelzapfen sowie an den Anlageflächen der Kupplungsplatte und dem Ver¬ schlusshebel sich das Spiel zwischen diesen Teilen ver- grösssert. Dadurch besteht die Gefahr des weiteren Aus- schlagens dieser Teile im Fahrbetrieb.Such saddle fillings are known (e.g. DE-Al-3330073), with all known constructions having the disadvantage that the play between these parts increases when there is wear on the kingpin as well as on the contact surfaces of the coupling plate and the locking lever. As a result, there is a risk of these parts knocking further while driving.

Aufgabe der vorliegenden Erfindung ist die Schaffung einer Sattelkupplung der eingangs genannten Art, bei welcher sich vergrösserndes Spiel beim Verriegelungs¬ mechanismus durch Verschleiss eliminiert werden kann.The object of the present invention is to create a fifth wheel coupling of the type mentioned at the outset, in which increasing play in the locking mechanism can be eliminated by wear.

Erfindungsgemäss wird diese Aufgabe durch die kenn¬ zeichnenden Merkmale von Anspruch 1 gelöst.According to the invention, this object is achieved by the characterizing features of claim 1.

Weitere Ausgestaltungen der Erfindung sind den abhän¬ gigen Ansprüchen zu entnehmen.Further developments of the invention can be found in the dependent claims.

Die Erfindung wird nachstehend anhand des in der beige¬ fügten Zeichnung dargestellten Ausführungsbeispieles nä¬ her erläutert. Die einzige Figur in der beiliegenden Zeichnung zeigt eine Draufsicht auf eine Sattelkupplung in vereinfachter Darstellung.The invention is explained in more detail below on the basis of the exemplary embodiment shown in the attached drawing. The only figure in the accompanying drawing shows a top view of a fifth wheel coupling in a simplified representation.

Die Sattelkupplung u fasst eine Kupplungsplatte 1 mit einem bodenseitig teilweise geschlossenen Einführungs¬ schlitz 2, welcher in einer zur Kupplungsplatte 1 zen¬ tralen halbkreisförmigen Ausnehmung 3 endet, die zur Aufnahme eines ZugsattelZapfens 4 eines Sattelauflie¬ gers dient.The fifth wheel coupling u comprises a coupling plate 1 with an insertion slot 2, which is partially closed on the bottom, which ends in a semicircular recess 3 which is central to the coupling plate 1 and which serves to receive a towing hitch pin 4 of a semi-trailer.

Ein Verriegelungsmechanismus 5, weist eine Kupplungs¬ klaue 6 und einen Verriegelungshebel 7 auf, welcher mit einem Handhebel 8 wirkverbunden ist. Die Kupplungsklaue 6 ist um einen Drehpunkt 9 schwenkbar gelagert, weist eine halbkreisförmige Ausnehmung 10 auf und dient zum Fest¬ halten des durch den Einführungsschiitz 2 eingeführten Zugsattelzapfen 4. An der Kupplungsklaue greift eine Zug¬ feder 20 für deren Oeffnungsbewegung an. Der Verriege¬ lungshebel 7 ist an einem Ende um einen Drehpunkt 11 schwenkbar gelagert und am anderen Ende gelenkig über einen Gewindezapfen 12 mit dem Handhebel 8 verbunden, wobei der Gewindezapfen 12 in ein Innengewinde 13 des Handhebels 8 eingewindet ist.A locking mechanism 5 has a coupling claw 6 and a locking lever 7 which is operatively connected to a hand lever 8. The coupling claw 6 is pivotally mounted about a pivot point 9, has a semicircular recess 10 and is used to hold the kingpin 4 inserted through the insertion slot 2. A tension spring 20 acts on the coupling claw for its opening movement. The locking lever 7 is pivotally mounted at one end about a pivot point 11 and articulated at the other end via a threaded pin 12 to the hand lever 8, the threaded pin 12 being threaded into an internal thread 13 of the hand lever 8.

Am Verriegelungshebel 7 ist ein Verriegelungsnocken 14 mit einer vorzugsweise schrägen oder bogenförmigen Anla¬ gefläche 15 angeordnet an welcher die Kupplungsklaue 6 in eingekuppelter Stellung anliegt. Der Handhebel 8 weist an seinem äusseren Ende einen Handgriff 16 und beabstandet von diesem eine Anschlagfläche 17 sowie nachfolgend eine Verdrehsicherung 18 auf, wobei die Verdrehsicherung 18 als ein längs des Handhebels befestigtes stabför iges Teil ausgebildet ist und als Sperre für die Spielein- Stellung dient. Am Verriegelungshebel 7 greift eine Fe¬ der 21 an, welche die Anschlagfläche 17 gegen eine An¬ lagefläche 19, bzw. 19a der Kupplungsplatte 1 drückt.Arranged on the locking lever 7 is a locking cam 14 with a preferably inclined or curved contact surface 15, against which the coupling claw 6 rests in the engaged position. The hand lever 8 has a handle 16 at its outer end and spaced from it a stop surface 17 and subsequently an anti-rotation device 18, the anti-rotation device 18 being designed as a rod-shaped part fastened along the hand lever and as a lock for the play. Position serves. A spring 21 acts on the locking lever 7 and presses the stop surface 17 against a contact surface 19 or 19a of the clutch plate 1.

Das Einstellen des Spiels zwischen dem Zugsattelzapfen 4 und der Kupplungsklaue 6 bzw. der Ausnehmung 3 an der Kupplungsplatte 1 erfolgt in Schliess-Position bzw. Fahr¬ position 30 bei eingefahrenem Zugsattelzapfen 4 oder ei¬ nem Kontrollzapfen. Hierzu wird der Handhebel 8 aus der in der Fig. strichpunktierten Position 30 verschwenkt und in die gezeichnete Einstell-Position 31 gebracht. Hierbei kommt die Anschlagfläche 17 an die Anlagefläche 19 der Kupplungsplatte 1 zum Anliegen. In dieser Stellung des Handhebels 8 kann dieser ge äss Pfeil 32 um seine Achse gedreht werden, da die Verdrehsicherung 18 durch die Schwenkstellung gemäss Position 31 freigegeben ist, d.h. die Verdrehsicherung 18 kann nicht an der Kupplungsplatte 1 anschlagen.The adjustment of the play between the king pin 4 and the coupling claw 6 or the recess 3 on the clutch plate 1 takes place in the closed position or driving position 30 with the king pin 4 retracted or a control pin. For this purpose, the hand lever 8 is pivoted out of the position 30 shown in dash-dotted lines in FIG. 1 and brought into the illustrated setting position 31. Here, the abutment surface 17 comes to rest against the contact surface 19 of the clutch plate 1. In this position of the hand lever 8, this can be rotated about its axis according to arrow 32, since the anti-rotation device 18 is released by the pivot position according to position 31, i.e. the anti-rotation device 18 cannot strike the clutch plate 1.

Durch Drehen des Handhebels 8 wird der Gewindezapfen 12 aus dem Innengewinde 13 herausgewindet und der Verrie¬ gelungshebel 7 wird dabei gemäss Pfeil 33 verschwenkt.By turning the hand lever 8, the threaded pin 12 is threaded out of the internal thread 13 and the locking lever 7 is pivoted according to arrow 33.

Hierbei wird durch den Verriegelungsnocken 14 die Kupp¬ lungsklaue 6 gegen den Zugsattelzapfen 4 bewegt bis kein Spiel mehr zwischen dem Zugsattelzapfen 4 und der Kupp¬ lungsklaue 6 bzw. der Ausnehmung 3 an der Kupplungsplatte 1 mehr vorhanden ist.In this case, the locking claw 14 moves the clutch claw 6 against the kingpin 4 until there is no more play between the kingpin 4 and the clutch claw 6 or the recess 3 on the clutch plate 1.

Beim Zurückschwenken des Handhebels in die Position 30 wird dieser durch Verschieben der Anschlagfläche 17 auf die Anlagefläche 19a in seiner Längsachse nach aussen be¬ wegt, wodurch der Verriegelungshebel 7 entgegen der Pfeilrichtung 33 verschwenkt wird. Durch den Verlauf der Anlagefläche 15 am Verriegelungs¬ nocken 14 entsteht dabei ein Spiel, vorzugsweise von 0,2 bis 0,5 mm zwischen dem Zugsattelzapfen 4 und der Kupp¬ lungsklaue 6, dessen Grosse durch die Distanz D zwischen den Anlageflächen 19 und 19a vorgegeben ist. Dieses Spiel stellt sich somit automatisch ein und kann in der Betä¬ tigungsstellung des Handhebels (Position 30) nicht ver¬ ändert werden, da in dieser Stellung der Handhebel 8 nicht verdrehbar ist.When the hand lever is pivoted back into position 30, it is moved outward in its longitudinal axis by moving the stop surface 17 onto the contact surface 19a, as a result of which the locking lever 7 is pivoted against the direction of the arrow 33. The course of the contact surface 15 on the locking cam 14 creates a play, preferably from 0.2 to 0.5 mm, between the kingpin 4 and the coupling claw 6, the size of which is predetermined by the distance D between the contact surfaces 19 and 19a is. This play thus occurs automatically and cannot be changed in the actuating position of the hand lever (position 30), since the hand lever 8 cannot be rotated in this position.

Zum Ausfahren der Zugmaschine aus dem Sattelanhänger wird der Handhebel in bekannter Weise in die Entriegelungs- Position 35 gebracht, wobei durch Verschwenken des Ver¬ riegelungshebels 7 die Sperre zwischen Verriegelungs¬ nocken 14 und Kupplungsklaue 6 gelöst wird. Auch in dieser Lage des Handhebels 8 ist eine Veränderung des Spieles wegen der Verdrehsicherung 18 nicht möglich, was ebenfalls in der Einfahr-Position 34 des Handhebels nicht möglich ist.To extend the tractor from the semitrailer, the hand lever is brought into the unlocking position 35 in a known manner, the lock between the locking cam 14 and the coupling claw 6 being released by pivoting the locking lever 7. Even in this position of the hand lever 8, it is not possible to change the play because of the anti-rotation device 18, which is likewise not possible in the retracted position 34 of the hand lever.

Beim Verschleiss am Zugsattelzapfen 4, an der Ausneh¬ mung 10 der Kupplungsklaue 6 und/oder an der Ausneh¬ mung 3 der Kupplungsplatte 1 kann dieses durch Neuein¬ stellung des Spieles wie vorgängig beschrieben elimi¬ niert werden.When worn on the king pin 4, on the recess 10 of the clutch claw 6 and / or on the recess 3 of the clutch plate 1, this can be eliminated by re-adjusting the play as described above.

Besonders vorteilhaft bei dieser Sattelkupplung ist, dass die erfindungsgemässe Verschleisskompensation keine zu¬ sätzlichen getrennten Betätigungsmechanismen erfordert und dass eine Verstellung des Spiels beim Einkuppeln, Auskuppeln oder in Fahrstellung nicht möglich ist. Ebenfalls von Vorteil ist, dass beim Zurückführen des Handhebels in die operative Lage 30 sich automatisch ein technisch erforderliches Minimalspiel zwischen den Ver¬ schlussteilen 3, 6 und den Zugsattelzapfen 4 einstellt.It is particularly advantageous with this fifth wheel coupling that the wear compensation according to the invention does not require any additional separate actuation mechanisms and that an adjustment of the play when engaging, disengaging or in the driving position is not possible. It is also advantageous that when the hand lever is returned to the operative position 30, a technically required minimum play between the locking parts 3, 6 and the king pin 4 is automatically established.

Ausserdem ist die Funktionsfähigkeit der Nachstellung auch bei Verschmutzung und Beschädigung des- Gewindes am Gewindezapfen 12 nicht beeinträchtigt, da für die Nach¬ stellung immer das im Innengewinde 13 des Handhebels 7 geschützt liegende Gewinde herausgewindet wird. In addition, the functionality of the adjustment is not impaired even if the thread on the threaded pin 12 is dirty and damaged, since the thread which is protected in the internal thread 13 of the hand lever 7 is always threaded out for the adjustment.

Claims

P a t e n t a n s p r ü c h e Patent claims 1. Sattelkupplung mit einem Handhebel (8) zur Betätigung eines Verriegelungsmechanismus (5) mit einem Verrie¬ gelungshebel (7) und einer Kupplungsklaue (6) für den in einen Einführungsschlitz (2) der Kupplungsplatte (1) einschiebbaren Zugsattelzapfen (4) , dadurchgekenn- zeichnet, dass der Handhebel (8) in eine Einstell- Position (31) bringbar ist, wobei in dieser Position die Kupplungsklaue (6) in Bezug auf den Zugsattel¬ zapfen (4) zur Beseitigung von Spiel mittels des Handhebels (8) nachstellbar ist.1. fifth wheel coupling with a hand lever (8) for actuating a locking mechanism (5) with a locking lever (7) and a coupling claw (6) for the king pin (4) which can be inserted into an insertion slot (2) of the coupling plate (1), characterized thereby - Draws that the hand lever (8) can be brought into an adjustment position (31), in which position the coupling claw (6) can be adjusted by means of the hand lever (8) in relation to the Zugsattel¬ pin (4) to eliminate play is. 2. Sattelkupplung nach Anspruch 1, dadurch gekennzeich¬ net, dass beim Zurückbringen des Handhebels (8) in die Schliess-Position (30) automatisch ein vorgege¬ benes Minimal-Spiel zwischen dem Zugsattelzapfen (4) und der Kupplungsklaue (6) entsteht.2. fifth wheel coupling according to claim 1, characterized gekennzeich¬ net that when returning the hand lever (8) in the closed position (30) automatically a predetermined minimum game between the king pin (4) and the clutch claw (6). 3. Sattelkupplung nach Anspruch 1 oder 2, dadurch ge¬ kennzeichnet, dass der Handhebel (8) in der Einstell- Position (31) um seine Längsachse verdrehbar ist und ein Innengewinde (13) aufweist, in welches ein an dem Verriegelungshebel (7) angelenkter Gewindezapfen (12) eingeschraubt ist. 3. fifth wheel according to claim 1 or 2, characterized ge indicates that the hand lever (8) in the setting position (31) is rotatable about its longitudinal axis and has an internal thread (13) into which a on the locking lever (7) articulated threaded pin (12) is screwed in. 4. Sattelkupplung nach einem der Ansprüche 1 bis 3, da- dadurch gekennzeichnet, dass am Handhebel (8) eine An¬ schlagfläche (17) angeordnet ist, welche in der Ein- stell-Position (31) des Handhebels (8) an einer Anla¬ gefläche (19) der Kupplungsplatte (1) anliegt.4. fifth wheel coupling according to one of claims 1 to 3, characterized in that on the hand lever (8) a stop surface (17) is arranged, which in the setting position (31) of the hand lever (8) on one Contact surface (19) of the clutch plate (1) abuts. 5. Sattelkupplung nach einem der Ansprüche 3 oder 4, da¬ durch gekennzeichnet, dass ein Verriegelungsnocken (14) am Verriegelungshebel (7) eine derartig verlau¬ fende Anlagefläche (15) für die Kupplungsklaue (6) aufweist, dass beim Herausgewinden des Gewindezapfens (12) aus dem Innengewinde (13) des Handhebels (8) bei dessen Drehen das Spiel zwischen Kupplungsklaue (6) und Zugsattelzapfen (4) anstellbar ist.5. fifth wheel according to one of claims 3 or 4, da¬ characterized in that a locking cam (14) on the locking lever (7) has such a duri¬ ing contact surface (15) for the coupling claw (6) that when the threaded pin () 12) from the internal thread (13) of the hand lever (8) when it is turned, the play between the clutch claw (6) and the kingpin (4) can be adjusted. 6. Sattelkupplung nach einem der Ansprüche 3 bis 5, da¬ durch gekennzeichnet, dass die Anschlagfläche (17) des Handhebels (8) in der Schliess-Position (30) an einer Anlagefläche (19a) anliegt, die zur Anlagefläche (19) eine, das Spiel zwischen dem Zugsattelzapfen (4) und der Kupplungsklaue (6) bestimmende Distanz (D) auf¬ weist.6. fifth wheel coupling according to one of claims 3 to 5, da¬ characterized in that the stop surface (17) of the hand lever (8) in the closed position (30) abuts a contact surface (19 a) which is a contact surface (19) , The game between the kingpin (4) and the clutch claw (6) has determining distance (D). 7. Sattelkupplung nach einem der Ansprüche 1 bis 6, da¬ durch gekennzeichnet, dass am Handhebel (8) eine Sper¬ re (18) angeordnet ist, mittels welcher das Einstel¬ len des Spieles mittels des Handhebels (1) in der Schliess-Position (30), in einer Einfahr-Position (34) und der Entriegelungs-Position (35) gesperrt ist. 7. fifth wheel according to one of claims 1 to 6, da¬ characterized in that on the hand lever (8) a lock (18) is arranged, by means of which the setting of the game by means of the hand lever (1) in the closing Position (30), in a retracted position (34) and the unlocking position (35) is locked.
PCT/CH1991/000263 1990-12-21 1991-12-12 Fifth wheel Ceased WO1992011172A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4099/90-6 1990-12-21
CH409990 1990-12-21

Publications (1)

Publication Number Publication Date
WO1992011172A1 true WO1992011172A1 (en) 1992-07-09

Family

ID=4269808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1991/000263 Ceased WO1992011172A1 (en) 1990-12-21 1991-12-12 Fifth wheel

Country Status (2)

Country Link
AU (1) AU8951691A (en)
WO (1) WO1992011172A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1031499A3 (en) * 1999-02-25 2003-03-19 Holland Hitch Company Stepped lock plunger fifth wheel hitch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087902A2 (en) * 1982-03-01 1983-09-07 Holland Hitch Company Fifth wheel hitch
DE3626533A1 (en) * 1985-08-19 1987-03-05 Fischer Ag Georg Fifth-wheel coupling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087902A2 (en) * 1982-03-01 1983-09-07 Holland Hitch Company Fifth wheel hitch
DE3626533A1 (en) * 1985-08-19 1987-03-05 Fischer Ag Georg Fifth-wheel coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1031499A3 (en) * 1999-02-25 2003-03-19 Holland Hitch Company Stepped lock plunger fifth wheel hitch

Also Published As

Publication number Publication date
AU8951691A (en) 1992-07-22

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