FR2749803A1 - Trailer for the transport of agricultural implement - Google Patents

Trailer for the transport of agricultural implement Download PDF

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Publication number
FR2749803A1
FR2749803A1 FR9607495A FR9607495A FR2749803A1 FR 2749803 A1 FR2749803 A1 FR 2749803A1 FR 9607495 A FR9607495 A FR 9607495A FR 9607495 A FR9607495 A FR 9607495A FR 2749803 A1 FR2749803 A1 FR 2749803A1
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FR
France
Prior art keywords
trailer
drawbar
carriage
platform
transport
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.)
Granted
Application number
FR9607495A
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French (fr)
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FR2749803B1 (en
Inventor
Jean Louis Cochet
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Individual
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Individual
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Filing date
Publication date
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Priority to FR9607495A priority Critical patent/FR2749803B1/en
Publication of FR2749803A1 publication Critical patent/FR2749803A1/en
Application granted granted Critical
Publication of FR2749803B1 publication Critical patent/FR2749803B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D63/00—Motor vehicles or trailers not otherwise provided for
    • B62D63/06—Trailers
    • B62D63/08—Component parts or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
    • B60D1/36—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for facilitating connection, e.g. hitch catchers, visual guide means, signalling aids
    • B60D1/40—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for facilitating connection, e.g. hitch catchers, visual guide means, signalling aids involving a temporarily extensible or alignable member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
    • B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
    • B60D1/46—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable vertically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/02—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with parallel up-and-down movement of load supporting or containing element
    • B60P1/027—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with parallel up-and-down movement of load supporting or containing element with relative displacement of the wheel axles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Agricultural Machines (AREA)
  • Handcart (AREA)

Abstract

The trailer is of the low loading type and consists of a platform (2) to support the machine to be transported. Two rear wheels (3) are carried by an axle and frame (4), which is linked to the rear of the platform, by actuating cylinders (7), which allow the axle to move vertically relative to the platform. The front end of the platform is fitted with a beam (12), which carries a ring (19), which attaches to the towing hook (30), fitted at the rear of the towing tractor (21). The towing hook forms part of the three point towing and lifting system, which is completed by the two lifting beams (31), which are linked at their free ends by a cross beam (33). The cross beam is designed to be attached to the hooks (29), which are carried on a mobile carriage (25), which moves on the main beam (12) of the platform front end.

Description

Remorque pour le transport d'engins lourds
et encombrants
La présente invention se rapporte à une remorque destinée à être attelée à l'arrière d'un tracteur et, plus particulièrement, destinée au transport d'engins agricoles.Trailer for transporting heavy equipment
and bulky
The present invention relates to a trailer intended to be coupled to the rear of a tractor and, more particularly, intended for the transport of agricultural machinery.

L'invention vise plus particulièrement une remorque qui comprend une plate forme avec un timon destiné à être accroché à l'arrière d'un tracteur et dont l'extrémité arrière est supportée par des roues portées par un châssis monté basculant de manière que la plateforme puisse être abaissée jusqu'au sol afin de faciliter le chargement de la machine à transporter. The invention relates more particularly to a trailer which comprises a platform with a drawbar intended to be hooked to the rear of a tractor and the rear end of which is supported by wheels carried by a chassis mounted tilting so that the platform can be lowered to the ground to facilitate loading of the transport machine.

Avec une telle remorque, lorsque la machine est montée sur la plateforme, il faut amener la remorque dans une position haute afin de pouvoir l'atteler à l'arrière -du tracteur. Les roues arrière peuvent être abaissées facilement car des vérins sont insérés entre le châssis et la plateforme afin, sélectivement, d'amener la remorque de la position basse à la position haute et vice-versa. I1 faut également pouvoir soulever l'extrémité du timon pour l'accrocher derrière le tracteur. Pour permettre ce levage, il est prévu un vérin supplémentairQ, généralement manuel, permettant d'amener le timon à la bonne hauteur,
Une telle disposition est peu pratique et l'un des buts de la présente invention est de réaliser une disposition facilitant l'attelage à l'arrière d'un tracteur en utilisant le système de relevage trois points de celui-ci. With such a trailer, when the machine is mounted on the platform, the trailer must be brought to a high position so that it can be coupled to the rear of the tractor. The rear wheels can be lowered easily because jacks are inserted between the chassis and the platform in order to selectively bring the trailer from the low position to the high position and vice versa. It must also be possible to lift the end of the drawbar to hang it behind the tractor. To allow this lifting, an additional, generally manual, cylinder is provided, allowing the drawbar to be brought to the correct height,
Such an arrangement is impractical and one of the aims of the present invention is to provide an arrangement facilitating the coupling to the rear of a tractor by using the three-point lifting system thereof.

La remorque, selon l'invention, est du type comprenant un plateau destiné à supporter l'engin à transporter, deux roues situées à l'arrière de la remorque et portées par un châssis relié mobile verticalement au plateau avec des moyens pour commander ledit châssis afin que le plateau puisse être abaissé jusqu'au sol pour le chargement ou le déchargement et relevé pour le transport, ledit plateau, à son extrémité avant, comportant un timon pourvu d'un anneau destiné à coopérer avec un crochet d'attelage prévu à l'arrière d'un tracteur comportant un système de relevage trois s points avec des barres de relevage dont les extrémités libres sont reliées par une traverse, ladite remorque étant caractérisée en ce qu'elle comporte, mobile longitudinalement sur le timon, un chariot comportant, à sa partie supérieure, des crochets destinés à coopérer avec la traverse reliant les bras de relevage. The trailer according to the invention is of the type comprising a plate intended to support the vehicle to be transported, two wheels located at the rear of the trailer and carried by a chassis connected vertically movable to the plate with means for controlling said chassis so that the plate can be lowered to the ground for loading or unloading and raised for transport, said plate, at its front end, comprising a drawbar provided with a ring intended to cooperate with a coupling hook provided for the rear of a tractor comprising a three-point lifting system with lifting bars whose free ends are connected by a cross member, said trailer being characterized in that it comprises, a carriage movable longitudinally on the drawbar, a carriage comprising , at its upper part, hooks intended to cooperate with the crosspiece connecting the lifting arms.

Grâce à une telle disposition pour amener la remorque depuis la position basse de chargement ou de déchargement, il suffit d'amener le tracteur afin que la traverse coopère avec les crochets puis de commander le levage des bras afin de soulever le timon et de faire reculer le tracteur afin que le chariot se déplace vers l'arrière pour amener le crochet sous l'anneau et enfin d'abaisser les bras .de relevage pour faire engager l'anneau sur le crochet. On conoit que l'invention permet, également, de procéder à la manoeuvre inverse. Thanks to such an arrangement for bringing the trailer from the low loading or unloading position, it suffices to bring the tractor so that the cross member cooperates with the hooks and then to control the lifting of the arms in order to raise the drawbar and make it move back the tractor so that the carriage moves backwards to bring the hook under the ring and finally to lower the lifting arms to engage the ring on the hook. It is understood that the invention also makes it possible to carry out the reverse maneuver.

Suivant une autre caractéristique, le chariot comporte un organe d'accrochage affectant la forme d'un U avec une âme et deux ailes dans lesquelles sont conformés les crochets, l'âme étant montée sur un arbre s'étendant parallèlement au timon et supporté par le chariot. Grâce à cette disposition, on peut facilement réaliser l'accouplement entre le chariot et la traverse reliant les barres de relevage, même sur des sols inégaux. According to another characteristic, the carriage comprises a hooking member taking the shape of a U with a core and two wings in which the hooks are shaped, the core being mounted on a shaft extending parallel to the drawbar and supported by carriage. Thanks to this arrangement, one can easily carry out the coupling between the carriage and the crosspiece connecting the lifting bars, even on uneven floors.

La remorque peut être du type dans lequel l'anneau est supporté par une chape montée basculante sur un axe vertical du timon, ladite remorque étant caractérisée en ce que la chape est solidaire, à sa partie supérieure, d'un élément tubulaire à section carrée comportant, d'une part, le long de ses bords supérieurs des saillies longitudinales et, d'autre part, à chaque extrémité, des butées, le chariot comportant quatre galets coopérant avec les saillies lon gitudinales.  The trailer may be of the type in which the ring is supported by a yoke pivotally mounted on a vertical axis of the drawbar, said trailer being characterized in that the yoke is integral, at its upper part, with a tubular element with square section comprising, on the one hand, along its upper edges, longitudinal projections and, on the other hand, at each end, stops, the carriage comprising four rollers cooperating with the longitudinal projections.

Ainsi, le chariot se trouve freiné lorsqu'il n'est pas relié à la traverse et peut, par contre être déplacé aisément lors des manoeuvres de levage Oll d'abaissement de la remorque.  Thus, the trolley is braked when it is not connected to the crossmember and can, on the other hand, be easily moved during lifting operations Oll for lowering the trailer.

L'invention va maintenant être décrite avec plus de détails en se référant à un mode de réalisation particulier donné à titre d'exemple seulement et représenté aux dessins annexés, dans lesquels
Figure 1 est une vue en plan schématique d'une remorque, selon l'invention.The invention will now be described in more detail with reference to a particular embodiment given by way of example only and shown in the accompanying drawings, in which
Figure 1 is a schematic plan view of a trailer according to the invention.

Figure 2 est une vue en élévation schématique de la remorque de la figure 1. Figure 2 is a schematic elevational view of the trailer of Figure 1.

Figure 3 est une vue à plus grande échelle en bout du timon de la remorque. Figure 3 is an enlarged view at the end of the drawbar of the trailer.

Figures 4, 5 et 6 sont des vues en élévation à plus grande échelle montrant les différentes manoeuvres d'attelage. Figures 4, 5 and 6 are elevation views on a larger scale showing the various coupling operations.

Aux figures 1 et 2, on a représenté une remorque 1 comprenant un plateau 2 dont l'extrémité arrière est supportée par deux roues 3 qui sont supportées par un châssis 4 relié à ladite extrémité arrière par des bielles 6,avec interposition de vérins 7, de manière que le plateau puisse être en position de chargement ou de déchargement amené pour reposer sur le sol. In FIGS. 1 and 2, a trailer 1 is shown comprising a platform 2, the rear end of which is supported by two wheels 3 which are supported by a chassis 4 connected to said rear end by connecting rods 6, with interposition of jacks 7, so that the tray can be in the loading or unloading position brought to rest on the ground.

Les roues 3 sont reliées par une barre d'accouplement 9 et sont montées pivotantes sur des axes verticaux, le pivotement étant commandé par un vérin 10. The wheels 3 are connected by a coupling bar 9 and are pivotally mounted on vertical axes, the pivoting being controlled by a jack 10.

La remorque comporte un timon 12 sur un axe vertical 13 duquel est articulée une chape 14 comportant un doigt 15 sur lequel s'articule la tige 16 d'un vérin 17 dont le corps est articulé sur un axe 18 du timon. The trailer comprises a drawbar 12 on a vertical axis 13 of which is articulated a yoke 14 comprising a finger 15 on which the rod 16 of a jack 17 is articulated, the body of which is articulated on an axis 18 of the drawbar.

L'âme de la chape 14 est solidaire d'une plaque 20 sur laquelle est fixé un anneau 19 destiné à être monté sur le crochet d'attelage 20 d'un tracteur 21. The core of the yoke 14 is integral with a plate 20 on which is fixed a ring 19 intended to be mounted on the coupling hook 20 of a tractor 21.

Les vérins 17 et 10 sont reliés de manière que, lorsque la chape 14 pivote dans un sens, le vérin 17 s'allonge et commande directement le vérin 10 pour faire pivoter les roues dans le sens correspondant au virage, tandis que lorsque la chape 14 pivote en sens inverse, le vérin 17 se raccourcit et commande, par le vérin 10, le pivotement des roues 3 dans le sens opposé. The jacks 17 and 10 are connected so that, when the yoke 14 pivots in one direction, the jack 17 extends and directly controls the jack 10 to rotate the wheels in the direction corresponding to the turn, while when the yoke 14 pivots in the opposite direction, the jack 17 is shortened and controls, by the jack 10, the pivoting of the wheels 3 in the opposite direction.

Les r-J-yens d'a-cage, selon I'invention, sont de préférence utilisés avec une remorque de ce type, mais pourraient également être montés sur une remorque dans laquelle les roues 3 ne sont pas orientables. The r-J-yen a-cage, according to the invention, are preferably used with a trailer of this type, but could also be mounted on a trailer in which the wheels 3 are not steerable.

La plaque 20, le long de son bord supérieur, est fixée à un élément tubulaire à section carrée 22 comportant, le long de ses deux bords supérieurs, des saillies longitudinales 23 et, à chaque extrémité, des butées 24et 24a. The plate 20, along its upper edge, is fixed to a tubular element with a square section 22 comprising, along its two upper edges, longitudinal projections 23 and, at each end, stops 24 and 24a.

Sur l'élément 22 est monté un chariot 25 comportant quatre galets 26 coopérant avec les saillies 23, ledit chariot supportant un arbre horizontal 27 sur lequel s' articule un organe d'accrochage 28 affectant la forme d'un U avec une âme 28a et deux ailes 28b, ces dernières présentant des crochets 29. Le cha riot 25 peut ainsi se déplacer depuis les butées 24 vers les butées 24a. On the element 22 is mounted a carriage 25 comprising four rollers 26 cooperating with the projections 23, said carriage supporting a horizontal shaft 27 on which is articulated a hooking member 28 affecting the shape of a U with a core 28a and two wings 28b, the latter having hooks 29. The carrier 25 can thus move from the stops 24 towards the stops 24a.

Sur les figures 4, 5 et 6, on a représenté schématiquement l'arrière du tracteur 21 avec son crochet d'attelage 30 et les barres de relevage 31 du système trois points reliées par une traverse 33. In FIGS. 4, 5 and 6, the rear of the tractor 21 is shown diagrammatically with its coupling hook 30 and the lifting bars 31 of the three-point system connected by a cross-member 33.

Sur la remorque 1, il est prévu une commande manuelle de frein 35 qui, par une liaison cinématique convenable, permet de bloquer les roues 3. On the trailer 1, a manual brake control 35 is provided which, by means of a suitable kinematic connection, makes it possible to lock the wheels 3.

Le plateau 2 reposant sur le sol, les rcues 3 occupent la position représentée à la figure 2, le frein 35 est serré. Pour atteler la remorque au crochet d'attelage 30 du tracteur 21, on procède de la façon suivante
On amène l'arrière du tracteur 21 à proximité de l'anneau 19 et on fait reculer celui-ci de manière que la traverse 33 vienne se situer derrière les ailes 28b, le chariot 25 portant contre les butées 24. Le tracteur 21 est ensuite avancé et les bras de relevage 31 abaissés afin que la traverse 33 vienne se loger dans les crochets 29 (figure 5).The plate 2 resting on the ground, the rcues 3 occupy the position shown in Figure 2, the brake 35 is applied. To couple the trailer to the towing hook 30 of the tractor 21, proceed as follows
The rear of the tractor 21 is brought near the ring 19 and the latter is moved back so that the cross-member 33 comes to be located behind the wings 28b, the carriage 25 bearing against the stops 24. The tractor 21 is then advanced and the lifting arms 31 lowered so that the cross member 33 comes to be housed in the hooks 29 (FIG. 5).

Enfin, on commande le relevage des bras 31 pour que la remorque 1 soit soulevée et que le crochet 30 vente se situer à un niveau inférieur à celui de l'anneau 19. On fait ensuite reculer le tracteur de sorte que le chariot 25 soit poussé depuis la butée 24, vers la butée 24a jusqu'à ce que le crochet 30 vienne se positionner au droit de l'anneau (figure 6), puis on fait redescendre les bras de relevage 31 et on dégage la traverse 33 des crochets 29.  Finally, the lifting of the arms 31 is controlled so that the trailer 1 is raised and the sales hook 30 is located at a level lower than that of the ring 19. The tractor is then made to move back so that the carriage 25 is pushed from the stop 24, towards the stop 24a until the hook 30 comes to position itself in line with the ring (FIG. 6), then the lifting arms 31 are lowered and the cross member 33 is released from the hooks 29.

On conçoit que pour amener la remorque dans la position basse, on procède à la manoeuvre inverse. It is understood that to bring the trailer in the low position, the reverse maneuver is carried out.

Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit et représenté. On pourra y apporter de nombreuses modifications de détail sans sortir pour cela du cadre de l'invention.  Of course, the invention is not limited to the embodiment which has just been described and shown. Many detailed modifications can be made without departing from the scope of the invention.

Claims (3)

REVENDICATIONS SCLAIMS S 1. Remorque pour le transport d'engins lourds et encombrants d't type comprenant un plateau (2) destiné à supporter l'engin à transporter, deux roues (3) situées à l'arrière de la remorque et portées par un châssis (4) relié mobile verticalement au plateau (2) avec des moyens (7) pour commander ledit châssis (4) afin que le plateau puisse être abaissé jllsqutau sol pour le chargement ou le déchargement et relevé pour le transport, ledit plateau, à son extrémité avant, comportant un timon (12) pourvu d'un anneau 09) destiné à coopérer avec un crochet d'attelage (30) prévu à l'arrière d'un tracteur (21) comportant un système de relevage trois points avec des barres de relevage (31) dont les extrémités libres sont reliées par une traverse (33), caractérisée en ce qu'elle emporte, mobile longiLudinaiemellt sur le timon (12), un chariot (25) comportant, à sa partie supérieure, des crochets (29) destinés à coopérer avec la traverse 33) reliant les bras de relevage (31).  1. Trailer for the transport of heavy and bulky vehicles of a type comprising a plate (2) intended to support the vehicle to be transported, two wheels (3) located at the rear of the trailer and carried by a chassis ( 4) vertically movable connected to the tray (2) with means (7) for controlling said chassis (4) so that the tray can be lowered to the ground for loading or unloading and raised for transport, said tray at its end front, comprising a drawbar (12) provided with a ring 09) intended to cooperate with a coupling hook (30) provided at the rear of a tractor (21) comprising a three-point lifting system with bars lifting (31) whose free ends are connected by a cross member (33), characterized in that it carries, movable longiLudinaiemellt on the drawbar (12), a carriage (25) comprising, at its upper part, hooks (29 ) intended to cooperate with the cross member 33) connecting the arms of r breeding (31). 2. Remorque pour le transport d'engins lourds et encombrants, selon la revendication 1, caractérisée en ce que le chariot comporte un organe d'accrochage (28) affectant la forme d'un U avec une âme (28a) et deux ailes (28b) dans lesquelles sont conformés les crochets (29), l'âme étant montée sur un arbre (27) s'étendant parallèlement au timon (12) et supporté par le chariot (25). 2. Trailer for the transport of heavy and bulky vehicles, according to claim 1, characterized in that the carriage comprises a hooking member (28) affecting the shape of a U with a core (28a) and two wings ( 28b) in which the hooks (29) are shaped, the core being mounted on a shaft (27) extending parallel to the drawbar (12) and supported by the carriage (25). 3. Remorque pour le transport d'engins lourds et encombrants, selon la revendication 1 et du type dans lequel l'anneau (19) est supporté par une chape (14) montée basculante sur un axe vertical (13) du timon (12), caractérisée en ce que la chape (14) est solidaire, à sa parte supérieure, d'un élément tubulaire (22) à section carrée comportant, d'une part, le long de ses bords supérieurs des saillies longitudinales (23) et, d'autre part, à chaque extrémité des butées (24, 24a), le chariot (25) comportant quatre galets (26) coopérant avec les saillies longitudinales (23).  3. Trailer for transporting heavy and bulky vehicles, according to claim 1 and of the type in which the ring (19) is supported by a yoke (14) pivotally mounted on a vertical axis (13) of the drawbar (12) , characterized in that the yoke (14) is integral, at its upper part, with a tubular element (22) with a square section comprising, on the one hand, along its upper edges, longitudinal projections (23) and, on the other hand, at each end of the stops (24, 24a), the carriage (25) comprising four rollers (26) cooperating with the longitudinal projections (23).
FR9607495A 1996-06-17 1996-06-17 TRAILER FOR THE TRANSPORT OF HEAVY AND BULKY VEHICLES Expired - Lifetime FR2749803B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9607495A FR2749803B1 (en) 1996-06-17 1996-06-17 TRAILER FOR THE TRANSPORT OF HEAVY AND BULKY VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9607495A FR2749803B1 (en) 1996-06-17 1996-06-17 TRAILER FOR THE TRANSPORT OF HEAVY AND BULKY VEHICLES

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FR2749803A1 true FR2749803A1 (en) 1997-12-19
FR2749803B1 FR2749803B1 (en) 1998-08-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803560A1 (en) * 2000-01-06 2001-07-13 Jean Claude Chartrain Motor vehicle trailer hitch has hitch bar with holes co-operating with tiling lever pivoted on trailer neck
EP1911611A1 (en) * 2006-10-14 2008-04-16 Webster, John A hitching device
EP2103458A1 (en) * 2008-03-18 2009-09-23 Bill Bennett Engineering Limited A vehicle hitch
FR3001606A1 (en) * 2013-02-07 2014-08-08 Jean Joseph Picq Combined agricultural tool for use at e.g. front of tractor for preparing ground for sowing grains, has rotary harrow of three-point hitch system provided at rear of tractor via three-adjustable point of tractor for adapting seeders

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650833A (en) * 1952-06-26 1953-09-01 Spears Wells Machinery Company Coupling device for vehicles
US2733935A (en) * 1956-02-07 whiteley
US3734540A (en) * 1971-04-05 1973-05-22 W Thiermann Utility service trailer
US4389058A (en) * 1981-04-15 1983-06-21 Cadwell Vyrl E Hitch assembly
DE3303046A1 (en) * 1983-01-29 1984-08-02 Tutzer, Emil, 7150 Backnang Coupling implement
EP0208825A1 (en) * 1985-07-16 1987-01-21 Primetzhofer Stahl- und Fahrzeugbau G.m.b.H. Tractor-trailer combination
GB2210600A (en) * 1987-10-09 1989-06-14 Micheal Stanley Rook Roller and beam jacking device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733935A (en) * 1956-02-07 whiteley
US2650833A (en) * 1952-06-26 1953-09-01 Spears Wells Machinery Company Coupling device for vehicles
US3734540A (en) * 1971-04-05 1973-05-22 W Thiermann Utility service trailer
US4389058A (en) * 1981-04-15 1983-06-21 Cadwell Vyrl E Hitch assembly
DE3303046A1 (en) * 1983-01-29 1984-08-02 Tutzer, Emil, 7150 Backnang Coupling implement
EP0208825A1 (en) * 1985-07-16 1987-01-21 Primetzhofer Stahl- und Fahrzeugbau G.m.b.H. Tractor-trailer combination
GB2210600A (en) * 1987-10-09 1989-06-14 Micheal Stanley Rook Roller and beam jacking device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803560A1 (en) * 2000-01-06 2001-07-13 Jean Claude Chartrain Motor vehicle trailer hitch has hitch bar with holes co-operating with tiling lever pivoted on trailer neck
EP1911611A1 (en) * 2006-10-14 2008-04-16 Webster, John A hitching device
EP2103458A1 (en) * 2008-03-18 2009-09-23 Bill Bennett Engineering Limited A vehicle hitch
FR3001606A1 (en) * 2013-02-07 2014-08-08 Jean Joseph Picq Combined agricultural tool for use at e.g. front of tractor for preparing ground for sowing grains, has rotary harrow of three-point hitch system provided at rear of tractor via three-adjustable point of tractor for adapting seeders

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Publication number Publication date
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