FR2521513A1 - Self-steering axle for vehicle semi-trailer - has wheel axles mounted on cranks controlled by hydraulic cylinders - Google Patents

Self-steering axle for vehicle semi-trailer - has wheel axles mounted on cranks controlled by hydraulic cylinders Download PDF

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Publication number
FR2521513A1
FR2521513A1 FR8202714A FR8202714A FR2521513A1 FR 2521513 A1 FR2521513 A1 FR 2521513A1 FR 8202714 A FR8202714 A FR 8202714A FR 8202714 A FR8202714 A FR 8202714A FR 2521513 A1 FR2521513 A1 FR 2521513A1
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France
Prior art keywords
axle
self
cranks
trailer
axle body
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Granted
Application number
FR8202714A
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French (fr)
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FR2521513B1 (en
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BAY JACK
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BAY JACK
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Publication date
Application filed by BAY JACK filed Critical BAY JACK
Priority to FR8202714A priority Critical patent/FR2521513A1/en
Priority to FR8217513A priority patent/FR2534867A2/en
Publication of FR2521513A1 publication Critical patent/FR2521513A1/en
Application granted granted Critical
Publication of FR2521513B1 publication Critical patent/FR2521513B1/fr
Granted 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
    • B62D13/00—Steering specially adapted for trailers
    • B62D13/04—Steering specially adapted for trailers for individually-pivoted wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D13/00—Steering specially adapted for trailers
    • B62D13/06—Steering specially adapted for trailers for backing a normally drawn trailer

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

Abstract

The self steering axle for a vehicle semi-trailer with multiple axles, has the wheel stub axles (1) mounted on cranks carried by the main axle. The main axle is mounted on pivotal supports (4) which can rotate through 180 degrees, so that the cranks always follow the direction of movement of the trailer. The steering gear for the axle is controlled by hydraulic or pneumatic cylinders (6) which rotate the cranks so that the wheel axles are not coaxial with main axles, under high loads. The cylinders are connected at one end to a lever on the main axles.

Description

La présente invention a pour objet un dispositif d'essieu auto-vireur pour semi-remorque agraire ou routière. The present invention relates to a self-steering axle device for agrarian or road semi-trailer.

Les charges, de plus en plus lourdes, transportées sur les semi-remorques, obligent le montage de plusieurs essieux, soit boggie, tandem ou tridem et, si au moins un des essieux n'est pas orientable, on obtient un ripage provoquant des contraintes excessives sur les essieux et les pneumatiques, tout en détériorant la surface du sol. The increasingly heavy loads transported on the semi-trailers force the mounting of several axles, either bogie, tandem or tridem and, if at least one of the axles is not steerable, a shifting is produced causing stresses excessive on axles and tires, while deteriorating the ground surface.

L'essieu orientable, déjà utilisé sur certaines remorques, ne fonctionne qu'en marche avant. I1 est auto-vireur et s'oriente dans le sens de la marche du véhicule (système dit "roue-fauteuil"), alors que selon l'invention, l'est sieu est auto-vireur en marche avant et en marche arrière. The steerable axle, already used on some trailers, only works in forward gear. I1 is self-tacking and is oriented in the direction of travel of the vehicle (system called "wheel-chair"), while according to the invention, the east is self-tacking in forward and reverse.

Le principe consiste à faire pivoter l'essieu de 1800, afin que les bielles articulées des fusées puissent être inversées et ainsi toujours orientées suivant la direction de la remorque. The principle consists in pivoting the axle of 1800, so that the articulated rods of the rockets can be reversed and thus always oriented according to the direction of the trailer.

Ce retournement de l'essieu est obtenu en montant le corps sur des paliers tourillon afin qu'il puisse pivoter. This reversal of the axle is obtained by mounting the body on journal bearings so that it can pivot.

La commande de cette manoeuvre est obtenue à l'aide d'un ou plusieurs vérins pneumatiques ou hydrauliques. L'achèvement de ce pivotement est obtenu par le poids du véhicule sur l'essieu, les fusées de toues étant désaxées par rapport au corps d'essieu. The control of this maneuver is obtained using one or more pneumatic or hydraulic cylinders. The completion of this pivoting is obtained by the weight of the vehicle on the axle, the spindles of all the axes being offset with respect to the axle body.

Le vérin de commande est articulé à l'extrémité libre d'un bras de levier solidaire du corps d'essieu, la dite extrémité étant pourvue d'une lumière permettant au vérin, en fin de course et après avoir fait dépasser le centre de gravité, entre l'axe du corps d'essieu et l'axe des fusées de roues, de libérer son point d'appui afin que s'achève le retournement à 1800. The control jack is articulated at the free end of a lever arm secured to the axle body, said end being provided with a light allowing the jack, at the end of the stroke and after having made exceed the center of gravity , between the axis of the axle body and the axis of the wheel knuckles, to release its fulcrum so that the reversal at 1800 ends.

Dans la description qui suit, le levier se présente en forme de secteur dans lequel la lumière est constituée par une mortaise centrée sur l'axe du corps d'essieu, l'axe de la tige du vérin à double effet est alors en place, en contact, à l'opposé de la mortaise pour accomplir le mouvement inverse. In the following description, the lever is in the form of a sector in which the light is formed by a mortise centered on the axis of the axle body, the axis of the rod of the double-acting cylinder is then in place, in contact, opposite the mortise to accomplish the reverse movement.

La description suivante de la présente invention, donnée à titre d'exemple, permet d'en comprendre le principe. The following description of the present invention, given by way of example, makes it possible to understand the principle thereof.

- la figure (1! représente un essieu dont la fusée "1", montée sur une bielle articulée par l'axe "2", est située en déport du corps d'essieu pivotant "3" - la figure (2) montre que ces 2 fusées d'essieu, reliées entre elles par une barre d'accouplement, s'orientent elles-mêmes dans le sens de la traction (voir la flèche).- Figure (1! represents an axle whose spindle "1", mounted on a connecting rod articulated by the axis "2", is located offset from the pivoting axle body "3" - Figure (2) shows that these 2 axle stubs, connected together by a tie rod, orient themselves in the direction of traction (see arrow).

Sur le corps de l'essieu pivotant, puisque monté sur paliers "4', sont mis en place 2 secteurs "5" destinés à provoquer sous la pression du vérin "6" le retournement de l'essieu. On the body of the pivoting axle, since it is mounted on bearings "4 ', 2 sectors" 5 "are set up intended to cause the axle to turn under the pressure of the jack" 6 ".

On remarquera que les secteurs sont réalisés avec des mortaises, afin que le vérin n'ait à provoquer par sa course qu'un déplacement de 1000 de pivotement de l'essieu, ensuite, le pivotement à 1800 est achevé par l'inertie du poids du véhicule, la fusée "1" ayant dépassée l'axe du corps d'essieu.It will be noted that the sectors are made with mortises, so that the jack has to cause by its stroke only a displacement of 1000 of pivoting of the axle, then, the pivoting at 1800 is completed by the inertia of the weight of the vehicle, the rocket "1" having exceeded the axis of the axle body.

La tige du vérin "6", reliée aux secteurs par l'axe "7", glisse en fin de course dans les mortaises des secteurs, prêtes et en place à refaire le mou veinent inverse, le vérin étant bien entendu à double effet.The rod of the jack "6", connected to the sectors by the axis "7", slides at the end of the race in the mortises of the sectors, ready and in place to remake the slack in the opposite vein, the jack being of course double-acting.

- les figures (3) et (4) montrent l'essieu inversé sous la pression du vérin, pendant une partie du cycle, puis à fond de course, laissant l'essieu poursuivre son retournement.- Figures (3) and (4) show the axle inverted under the pressure of the jack, during part of the cycle, then at full travel, letting the axle continue its reversal.

- la figure (5) montre, en trait plein, l'essieu dans sa position initiale et, en trait pointillé, la deuxième position qu'il peut prendre.- Figure (5) shows, in solid lines, the axle in its initial position and, in dotted lines, the second position it can take.

Apparait également sur cette figure, la disposition horizontale du vérin "6" au-dessus du plan défini par l'essieu dans ses deux positions extrêmes, de telle sorte qu'il soit en appui sur l'une des extrémités de la mortaise, formant ainsi un angle entre l'axe du vérin "6" et la direction définie par le centre de l'essieu ")" et de l'axe "7" le plus proche d'un angle de 900, pour réduire l'effort.Also appears in this figure, the horizontal arrangement of the jack "6" above the plane defined by the axle in its two extreme positions, so that it is in abutment on one of the ends of the mortise, forming thus an angle between the axis of the jack "6" and the direction defined by the center of the axle ")" and the axis "7" closest to an angle of 900, to reduce the effort.

La position du vérin au-dessus de l'essieu n1 est pas limitative mais seulement préférable pour des raisons d'encombrement. The position of the jack above the axle is not limiting, but only preferable for reasons of space.

Claims (5)

REVENDICATIONS 1. Dispositif d'essieu auto-vireur pour semi-remorques à essieux multiples, dans lequel l'essieu auto-vireur comporte des fusées de roues montées sur des bielles articulées sur le corps d'essieu, caractérisé en ce que au moins un essieu du véhicule soit auto-vireur, marche avant et marche arrière ; ceci par le fait que le corps d'essieu, étant monté sur paliers tourillon, puisse tourner de 1800 afin que les bielles articulées, porteuses des fusées d'essieu, soient toujours orientées dans le sens de la marche. 1. Self-tacking axle device for multi-axle semi-trailers, in which the self-tacking axle comprises wheel stubs mounted on connecting rods articulated on the axle body, characterized in that at least one axle of the vehicle either self-tacking, forward and reverse; this by the fact that the axle body, being mounted on journal bearings, can rotate from 1800 so that the articulated connecting rods, carrying the axle stub axles, are always oriented in the direction of travel. 2. Dispositif, suivant la revendication 1, caractérisé en ce que les moyens de pivotement de l'essieu soient en partie commandés par un ou plusieurs vérins pneumatiques ou hydrauliques et que l'achèvement de ce pivotement soit obtenu par le poids du véhicule sur l'essieu, les fusées de roues étant désaxées par rapport au corps d'essieu. 2. Device according to claim 1, characterized in that the pivoting means of the axle are partly controlled by one or more pneumatic or hydraulic cylinders and that the completion of this pivoting is obtained by the weight of the vehicle on the 'axle, the stub axles being offset from the axle body. 3. Dispositif, suivant les revendications 1 et 2, suivant lequel le vérin de commande est articulé à l'extrémité libre d'un bras de levier solidaire du corps d'essieu, la dite extrémité étant pourvue d'une lumière permettant au vérin, en fin de course et après avoir fait dépasser le centre de gravité, entre l'axe du corps d'essieu et l'axe des fusées de roues, de libérer son point d'appui afin que s'achève le retournement à 1800. 3. Device according to claims 1 and 2, according to which the control jack is articulated at the free end of a lever arm secured to the axle body, said end being provided with a light allowing the jack, at the end of the race and after having passed the center of gravity, between the axle of the axle body and the axle of the wheel knuckles, to release its fulcrum so that the reversal at 1800 ends. 4. Dispositif, selon la revendication 3, caractérisé en ce que le levier se présente en forme de secteur dans lequel la lumière est constituée par une mortaise centrée sur l'axe du corps d'essieu, et que l'axe de la tige du vérin à double effet soit en place, en contact, à l'opposé de la mortaise pour accomplir le mouvement inverse. 4. Device according to claim 3, characterized in that the lever is in the form of a sector in which the light is constituted by a mortise centered on the axis of the axle body, and that the axis of the rod of the double-acting cylinder is in place, in contact, opposite the mortise to accomplish the reverse movement. 5. Dispositif, selon les revendications 3 et 4, caractérisé par ce que le vérin soit disposé horizontalement par rapport au plan défini par l'essieu dans ses deux positions et de telle sorte qu'il soit en appui sur l'une des extrémités de la mortaise.  5. Device according to claims 3 and 4, characterized in that the cylinder is arranged horizontally relative to the plane defined by the axle in its two positions and so that it is supported on one of the ends of mortise.
FR8202714A 1982-02-18 1982-02-18 Self-steering axle for vehicle semi-trailer - has wheel axles mounted on cranks controlled by hydraulic cylinders Granted FR2521513A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8202714A FR2521513A1 (en) 1982-02-18 1982-02-18 Self-steering axle for vehicle semi-trailer - has wheel axles mounted on cranks controlled by hydraulic cylinders
FR8217513A FR2534867A2 (en) 1982-02-18 1982-10-20 Self-steering axle operating in forward and reverse motion especially for trailers with multiple axles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8202714A FR2521513A1 (en) 1982-02-18 1982-02-18 Self-steering axle for vehicle semi-trailer - has wheel axles mounted on cranks controlled by hydraulic cylinders

Publications (2)

Publication Number Publication Date
FR2521513A1 true FR2521513A1 (en) 1983-08-19
FR2521513B1 FR2521513B1 (en) 1984-04-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002347A1 (en) * 1992-07-21 1994-02-03 Sure Steer Axle Co., Inc. A trailer and a method for steering the trailer
FR2905108A1 (en) * 2006-08-25 2008-02-29 Jacques Delaplace Auto-follower rolling assembly for tow vehicle, has lateral portion that are plates, which are mobile in rotation with respect to central portion between positions of tilting axis, and steering axes located in front/at back of tilting axis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR918002A (en) * 1945-02-16 1947-01-28 Saurer Adolph Steering device for trailer
FR1538908A (en) * 1967-09-28 1968-09-06 Self-steering axle road vehicle
US3447813A (en) * 1967-01-11 1969-06-03 Lloyd J Wolf Axle caster-reversing means
FR2000439A1 (en) * 1968-01-19 1969-09-05 Ceschi Bruno
DE2546121A1 (en) * 1975-10-15 1977-04-28 Volkswagenwerk Ag Tracking control for triple rear axles of trailer - with servo to alter castor angle for reversing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR918002A (en) * 1945-02-16 1947-01-28 Saurer Adolph Steering device for trailer
US3447813A (en) * 1967-01-11 1969-06-03 Lloyd J Wolf Axle caster-reversing means
FR1538908A (en) * 1967-09-28 1968-09-06 Self-steering axle road vehicle
FR2000439A1 (en) * 1968-01-19 1969-09-05 Ceschi Bruno
DE2546121A1 (en) * 1975-10-15 1977-04-28 Volkswagenwerk Ag Tracking control for triple rear axles of trailer - with servo to alter castor angle for reversing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002347A1 (en) * 1992-07-21 1994-02-03 Sure Steer Axle Co., Inc. A trailer and a method for steering the trailer
FR2905108A1 (en) * 2006-08-25 2008-02-29 Jacques Delaplace Auto-follower rolling assembly for tow vehicle, has lateral portion that are plates, which are mobile in rotation with respect to central portion between positions of tilting axis, and steering axes located in front/at back of tilting axis

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Publication number Publication date
FR2521513B1 (en) 1984-04-27

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