FR2820365A1 - Device for causing rotation centers of vehicle and trailer in rearward movement to coincide comprises fork pushed by actuator and applied to rear plate integral with coupling ball and vehicle - Google Patents

Device for causing rotation centers of vehicle and trailer in rearward movement to coincide comprises fork pushed by actuator and applied to rear plate integral with coupling ball and vehicle Download PDF

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Publication number
FR2820365A1
FR2820365A1 FR0101666A FR0101666A FR2820365A1 FR 2820365 A1 FR2820365 A1 FR 2820365A1 FR 0101666 A FR0101666 A FR 0101666A FR 0101666 A FR0101666 A FR 0101666A FR 2820365 A1 FR2820365 A1 FR 2820365A1
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trailer
vehicle
wheel
jack
drawbar
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FR0101666A
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French (fr)
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FR2820365B1 (en
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Yves Georges Pailler
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D3/00—Fittings to facilitate pushing
    • 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
    • B62D63/062—Trailers with one axle or two wheels
    • B62D63/065—Trailers with one axle or two wheels forming an extension of the towing vehicle, i.e. with two point fixation

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The device comprises a fork (10), pushed by an actuator (18), which is applied on a rear plate (13) integral with the coupling ball (12) and the vehicle (1). The fork locks the horizontal rotation of the shaft (3) in the vehicle's axis. The wheels (4,5) each have an arm pulled rearwards (6) pivoting on a fifth wheel (7) which can be locked by a spring and unlocked by the actuator.

Description

<Desc/Clms Page number 1> <Desc / Clms Page number 1>

La présente invention concerne un dispositif facilitant la marche arrière sur un véhicule équipé d'une remorque.  The present invention relates to a device facilitating reverse on a vehicle equipped with a trailer.

Pendant la marche avant, le point d'articulation du timon étant situé en avant des roues de la remorque (roues tirées), ces dernières prennent automatiquement une position stable, faisant coïncider le centre de rotation de la remorque avec celui du véhicule tracteur.  During forward travel, the drawbar articulation point being located in front of the trailer wheels (pulled wheels), the latter automatically assume a stable position, making the center of rotation of the trailer coincide with that of the towing vehicle.

Pendant la marche arrière, au contraire, le point d'articulation du timon se trouve en arrière du sens de déplacement des roues de la remorque (roues poussées), et celle ci prend une position instable difficilement contrôlable, risquant de provoquer un accident.  During reverse gear, on the contrary, the drawbar articulation point is behind the direction of movement of the trailer wheels (pushed wheels), and the latter takes an unstable position which is difficult to control, risking causing an accident.

Le dispositif selon l'invention permet de remédier à cet inconvenient. Il comporte en effet un mécanisme de déverrouillage des roues de la remorque les transformant en roues tirées lors des marches en sens arrière. Le timon, lui même, possède un mécanisme de bloçage par rapport à son axe vertical de rotation, assurant son positionnement sur l'axe longitudinal du véhicule tracteur. Les différentes opérations seront avantageusement effectuées à l'aide de vérins hydrauliques, des moyens pneumatique s, électrique s, mécanique s, etc. pouvant également être utilisés.  The device according to the invention makes it possible to remedy this drawback. It indeed includes a mechanism for unlocking the trailer wheels transforming them into wheels pulled when walking in the reverse direction. The drawbar, itself, has a locking mechanism relative to its vertical axis of rotation, ensuring its positioning on the longitudinal axis of the towing vehicle. The various operations will advantageously be carried out using hydraulic cylinders, pneumatic means, electrical means, mechanical means, etc. can also be used.

Lors de l'enclenchement de la marche arrière et en configuration vérins hydrauliques, un premier signal enverra de l'huile sous pression aux vérins de roues de la remorque, assurant le déverrouillage des roues et leur permettant un débattement déterminé de part et d'autre de l'axe longitudinal de la remorque. Lorsque les roues seront déverrouillées, un deuxième signal enverra de l'huile sous pression au vérin de timon, assurant son blocage sur l'axe longitudinal du véhicule tracteur. Dans ces conditions, les roues étant tirées, la marche arrière s'effectue très facilement, la remorque prenant automatiquement une position stable faisant coïncider son centre de rotation avec celui du véhicule tracteur.  When the reverse gear is engaged and in the hydraulic cylinder configuration, a first signal will send pressurized oil to the wheel cylinders of the trailer, ensuring the unlocking of the wheels and allowing them a determined clearance on both sides of the longitudinal axis of the trailer. When the wheels are unlocked, a second signal will send pressurized oil to the drawbar cylinder, ensuring its locking on the longitudinal axis of the towing vehicle. Under these conditions, the wheels being pulled, reverse is very easy, the trailer automatically taking a stable position making its center of rotation coincide with that of the towing vehicle.

Lors du retour à la marche avant, un premier signal commande le retrait de l'huile du vérin de timon rendant celui-ci libre en rotation dans le plan horizontal. Lorsque le timon sera libéré, un deuxième signal commandera le retrait de l'huile des vérins de roues, provoquant le verrouillage de chaque roue avec l'aide d'un ressort de vérin et d'un doigt de verrouillage poussé par un autre ressort et s'enclenchant dans un logement de la plaque d'alignement de chaque roue.  When returning to forward gear, a first signal controls the withdrawal of the oil from the drawbar cylinder making it free to rotate in the horizontal plane. When the drawbar is released, a second signal will command the removal of the oil from the wheel cylinders, causing each wheel to lock with the help of a jack spring and a locking finger pushed by another spring and snapping into a housing on the alignment plate of each wheel.

<Desc/Clms Page number 2> <Desc / Clms Page number 2>

Dans ce qui suit, nous allons décrire une réalisation de l'invention en nous référant aux dessins ci-annexés, d'une manière bien entendu non limitative. In what follows, we will describe an embodiment of the invention with reference to the accompanying drawings, of course in a non-limiting manner.

La figure 1 représente un ensemble véhicule tracteur (1) avec remorque (2) en configuration marche arrière, le timon (3) étant bloqué en rotation horizontale et maintenu dans l'axe longitudinal du véhicule tracteur (1) et les roues (4) et (5) étant déverrouillées avec débattement déterminé (par exemple 30ç) de part et d'autre de l'axe longitudinal de la remorque (2) les bras tirés (6) faisant'coïncider en Q, (26) les centres de rotation de. lia remorque (2) et du véhicule tracteur (1).  FIG. 1 represents a tractor vehicle assembly (1) with trailer (2) in reverse configuration, the drawbar (3) being locked in horizontal rotation and kept in the longitudinal axis of the tractor vehicle (1) and the wheels (4) and (5) being unlocked with defined clearance (for example 30 °) on either side of the longitudinal axis of the trailer (2) the arms pulled (6) making coincide in Q, (26) the centers of rotation of. The trailer (2) and the towing vehicle (1).

La figure 2 représente le timon (3) en élévation et en vue de dessus partielle ainsi que la roue droite (4) avec son bras de suspension (6) et sa sellette de pivotement (7). Le timon (3) possède un vérin (8) ici en position avancée (marche arrière), la tige (9) du vérin possède une fourche (10) terminée par des disques (11) de diamètres égaux à celui de la boule d'attelage (12) et situés dans le même axe transversal de rotation X. X'. Une plaque arrière (13) solidaire de la boule d'attelage (12), possède deux butées avantageusement en caoutchouc dur (14) sur lesquelles

Figure img00020001

prennent appui les disques (li). Une butéé (15) limite la course du vérin. (8). Un ressort (16) ramène le vérin en position arrière lorsque la pression d'huile est supprimée. Figure 2 shows the drawbar (3) in elevation and in partial top view as well as the right wheel (4) with its suspension arm (6) and its pivoting harness (7). The drawbar (3) has a jack (8) here in the advanced position (reverse), the rod (9) of the jack has a fork (10) terminated by discs (11) of diameters equal to that of the ball coupling (12) and located in the same transverse axis of rotation X. X '. A rear plate (13) integral with the coupling ball (12) has two advantageously hard rubber stops (14) on which
Figure img00020001

support the discs (li). A stop (15) limits the stroke of the jack. (8). A spring (16) returns the cylinder to the rear position when the oil pressure is removed.

Les figures 3 et 4 représentent le mécanisme de verrouillage et déverrouillage de la roue droite (4) de la remorque (2), le mécanisme étant symétrique pour la roue gauche (5).  Figures 3 and 4 show the locking and unlocking mechanism of the right wheel (4) of the trailer (2), the mechanism being symmetrical for the left wheel (5).

La figure 3 représente la position déverrouillée correspondant

Figure img00020002

à la marche arrière, le ressort zu du vérin (18) étant comprimé par le piston (19) poussé par la pression d'huile. La plaque d'alignement (20) du vérin (18) en position arrière permet une rotation limitée, par exemple 300, de la roue (4) de part et d'autre de l'axe longitudinal de la remorque. la plaque d'alignement (21) de la sellette de pivotement (7) venant en butée sur la plaque d'alignement (20) du vérin (18). Figure 3 shows the corresponding unlocked position
Figure img00020002

when reversing, the spring zu of the jack (18) being compressed by the piston (19) pushed by the oil pressure. The alignment plate (20) of the jack (18) in the rear position allows limited rotation, for example 300, of the wheel (4) on either side of the longitudinal axis of the trailer. the alignment plate (21) of the pivoting seat (7) abutting on the alignment plate (20) of the jack (18).

La figure 4 représente la position verrouillée correspondant à la marche avant. La pression d'huile étant annulée dans le vérin (18), le ressort (17) ramène la plaque d'alignement (20) du vérin  Figure 4 shows the locked position corresponding to the forward gear. The oil pressure being canceled in the jack (18), the spring (17) brings back the alignment plate (20) of the jack

<Desc/Clms Page number 3><Desc / Clms Page number 3>

(18) contre la plaque d'alignement (21) de la sellette de pivotement (7,). Un doigt de verrouillage (22) poussé par un ressort (23) s'engage alors dans un logement (24) de la plaque d'alignement (21) de la sellette (7) assurant la sécurité du positionnement de la roue (4). Le doigt de verrouillage (22) possède un chanfrein (25) facilitant son positionnement dans le logement (24) de la plaque d'alignement (21).  (18) against the alignment plate (21) of the pivoting fifth wheel (7,). A locking finger (22) pushed by a spring (23) then engages in a housing (24) of the alignment plate (21) of the harness (7) ensuring the safety of the positioning of the wheel (4) . The locking finger (22) has a chamfer (25) facilitating its positioning in the housing (24) of the alignment plate (21).

Le dispositif selon l'invention est particulièrement destiné aux remorques à deux roues ou à quatre roues rapprochées. The device according to the invention is particularly intended for trailers with two wheels or four close wheels.

Claims (5)

REVENDICATIONS 1) Dispositif pour donner à une remorque (2) un centre de ro- tation au point 0 (26) coïncidant automatiquement en marche arri- ère avec celui du véhicule tracteur (1) caractérisé en ce qu'il comporte un timon (3) blocable en rotation horizontale sur l'axe longitudinal du véhicule tracteur (1) par l'action d'une fourche (10) prenant appui sur une plaque (13) solidaire de la boule d'amarrage (12) et en ce qu'il comporte le plus souvent deux roues (4) et (5), chaque roue pouvant pivoter sur un axe ou une sellette (7) et possédant un bras tiré (6) en configuration marche arrière, faisant coïncider en 0, (26) les centres de rotation de la remorque (2) et du véhicule tracteur (1), la plaque d'alignement (20) en position ouverte assurant un débattement limité de part et d'autre de l'axe longitudinal de la remorque (2) à la sellette (7), la plaque d'alignement de cette dernière (21) venant en butée sur la première plaque (20).  1) Device for giving a trailer (2) a center of rotation at point 0 (26) automatically coinciding in reverse with that of the towing vehicle (1) characterized in that it includes a drawbar (3) lockable in horizontal rotation on the longitudinal axis of the towing vehicle (1) by the action of a fork (10) bearing on a plate (13) secured to the mooring ball (12) and in that it usually comprises two wheels (4) and (5), each wheel being able to pivot on an axis or a fifth wheel (7) and having a pulled arm (6) in reverse configuration, making the centers coincide in 0, (26) of rotation of the trailer (2) and of the towing vehicle (1), the alignment plate (20) in the open position ensuring a limited clearance on either side of the longitudinal axis of the trailer (2) at the fifth wheel (7), the alignment plate of the latter (21) abutting on the first plate (20). 2) Dispositif selon, la revendication 1 caractérisé en ce que la fourche (10) se termine par des disques (11) de diamètres égaux à celui de la boule d'attelage (12) et situés dans le même axe transversal de rotation X, X'.  2) Device according to claim 1 characterized in that the fork (10) ends in discs (11) of diameters equal to that of the coupling ball (12) and located in the same transverse axis of rotation X, X '. 3) Dispositif selon la revendication 1 caractérisé en ce qu'un doigt de verrouillage (22) poussé par un ressort (23) s'engage dans un logement (24) de la plaque d'alignement (21) de la sellette (7) en position fermée, le doigt (22) possédant un chanfrein (25).  3) Device according to claim 1 characterized in that a locking finger (22) pushed by a spring (23) engages in a housing (24) of the alignment plate (21) of the harness (7) in the closed position, the finger (22) having a chamfer (25). 4) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que l'enclenchement de la marche arrière commande également le déverrouillage de chaque roue (4) (5) de la remorque (2) dans un premier temps et le blocage du timon (3) en rotation horizontale sur l'axe longitudinal du véhicule tracteur  4) Device according to any one of the preceding claims, characterized in that the engagement of the reverse gear also controls the unlocking of each wheel (4) (5) of the trailer (2) at first and the locking of the drawbar. (3) in horizontal rotation on the longitudinal axis of the towing vehicle
Figure img00040003
Figure img00040003
 (1) dans un deuxième temps, l'enclenchement de la marche avant commandant à son, tour le déblocage du timon (3) dans un premier temps et le verrouillage des roues (4) (5) dans un deuxième temps.  (1) in a second step, the engagement of the forward drive in turn controlling the release of the drawbar (3) in a first step and the locking of the wheels (4) (5) in a second step. 5) Dispositif selon l'une quelconque des revendications précé- dentes caractérisé en ce que le déverrouillage de chaque roue (4) (5) est obtenu en envoyant de l'huile sous pression dans un vérin (18), le blocage du timon étant obtenu lui même en envoyant de 5) Device according to any one of the preceding claims, characterized in that the unlocking of each wheel (4) (5) is obtained by sending oil under pressure into a jack (18), the drawbar locking being got it himself by sending <Desc/Clms Page number 5><Desc / Clms Page number 5> l'huile sous pression dans un vérin (8), une butée (15) limitant la course du vérin (8), le verrouillage des roues (4) (5) étant obtenu pour chacune d'elles, de façon symétrique, par l'action d'un ressort (17) qui se détend lorsque la pression d'huile est supprimée dans le vérin (18), un autre ressort (16) facilitant le déblocage du timon (3) lorsque la pression d'huile est supprimée dans le vérin (8). the oil under pressure in a jack (8), a stop (15) limiting the stroke of the jack (8), the locking of the wheels (4) (5) being obtained for each of them, symmetrically, by l action of a spring (17) which relaxes when the oil pressure is removed in the jack (18), another spring (16) facilitating the release of the drawbar (3) when the oil pressure is removed in the jack (8).
FR0101666A 2001-02-06 2001-02-06 DEVICE FOR COINCIDING IN REVERSE THE ROTATION CENTERS OF A VEHICLE AND A TRAILER Expired - Fee Related FR2820365B1 (en)

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FR0101666A FR2820365B1 (en) 2001-02-06 2001-02-06 DEVICE FOR COINCIDING IN REVERSE THE ROTATION CENTERS OF A VEHICLE AND A TRAILER

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FR0101666A FR2820365B1 (en) 2001-02-06 2001-02-06 DEVICE FOR COINCIDING IN REVERSE THE ROTATION CENTERS OF A VEHICLE AND A TRAILER

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4360918A1 (en) * 2022-10-25 2024-05-01 Sandvik Mining and Construction Lyon SAS Mining trailer, mining vehicle and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2775468A (en) * 1954-01-25 1956-12-25 Charles H Holsclaw Hitch for trailers having independently pivoted wheels
DE2906895A1 (en) * 1979-02-22 1980-09-04 Helmut Falkenheiner Rigid coupling for trailer - has movable wheel mountings for self steering control
US4429894A (en) * 1979-01-03 1984-02-07 Alain Feuvray Fastening device for a trailer and trailer comprising such a device
DE4216543A1 (en) * 1991-05-27 1992-12-03 Volkswagen Ag Single-axle trailer with steerable wheels - has free-running steering type axle, and adjusts trail angle in bends by tyre trailing action
US6145855A (en) * 1999-06-25 2000-11-14 Trimmer Trap, Inc. Convertible sulky

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2775468A (en) * 1954-01-25 1956-12-25 Charles H Holsclaw Hitch for trailers having independently pivoted wheels
US4429894A (en) * 1979-01-03 1984-02-07 Alain Feuvray Fastening device for a trailer and trailer comprising such a device
DE2906895A1 (en) * 1979-02-22 1980-09-04 Helmut Falkenheiner Rigid coupling for trailer - has movable wheel mountings for self steering control
DE4216543A1 (en) * 1991-05-27 1992-12-03 Volkswagen Ag Single-axle trailer with steerable wheels - has free-running steering type axle, and adjusts trail angle in bends by tyre trailing action
US6145855A (en) * 1999-06-25 2000-11-14 Trimmer Trap, Inc. Convertible sulky

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4360918A1 (en) * 2022-10-25 2024-05-01 Sandvik Mining and Construction Lyon SAS Mining trailer, mining vehicle and method
WO2024088943A1 (en) * 2022-10-25 2024-05-02 Sandvik Mining And Construction Lyon Sas Mining trailer, mining vehicle and method

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