EP0097558B1 - Y-form jack for a motor vehicle - Google Patents

Y-form jack for a motor vehicle Download PDF

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Publication number
EP0097558B1
EP0097558B1 EP19830401122 EP83401122A EP0097558B1 EP 0097558 B1 EP0097558 B1 EP 0097558B1 EP 19830401122 EP19830401122 EP 19830401122 EP 83401122 A EP83401122 A EP 83401122A EP 0097558 B1 EP0097558 B1 EP 0097558B1
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EP
European Patent Office
Prior art keywords
arm
jack
pillar
prop
lever
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.)
Expired
Application number
EP19830401122
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German (de)
French (fr)
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EP0097558A1 (en
Inventor
Philippe Burguburu
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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Publication date
Application filed by Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0097558A1 publication Critical patent/EP0097558A1/en
Application granted granted Critical
Publication of EP0097558B1 publication Critical patent/EP0097558B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers

Definitions

  • the invention relates to jacks intended to lift a motor vehicle body, of the so-called Y-shaped type, that is to say comprising an upright on which an arm is articulated whose angular position relative to the upright is adjustable, in particular by means of an operating screw carried by two parts articulated respectively on the arm and at the upper part of the upright.
  • Jacks of this type rest on the ground by a foot formed at the base of the upright, and generally receive a lower prominence of the vehicle body in a housing, called jack head, formed at the free end of the arm.
  • the jacks of this type are simple and low cost, but, as their amount is more inclined relative to the vertical as the box they support is lower, their installation implies precautions for s '' ensure that the head and foot of the jack are in the vicinity of the same vertical in order to provide suitable stability to the vehicle lifted by the jack.
  • the object of the invention is to produce a jack of low cost price and the positioning of which is carried out easily and automatically in the most stable position.
  • the subject of the invention is a jack of the aforementioned type, characterized in that it comprises, on the side of the upright opposite the arm, a crutch which pivots on the upright about an axis of articulation parallel to that of the arm and located below the latter, and which is extended towards the arm by a lever held in abutment on a lower face of the arm by a spring, the free end of the crutch determining with the foot of the jack, when 'They are simultaneously in contact with a substantially horizontal ground, a support surface such that the head and the foot of the jack are always in the vicinity of the same vertical.
  • a jack of the type known as Y comprising an upright 1 on which an arm 2 is articulated by one end, around a horizontal axis of articulation 3, and an operating screw 4 carried by two nuts 5 , 6 articulated respectively towards the middle of the arm 2 and at the upper part of the upright 1.
  • the nut 5 is threaded, while the other nut 6 constitutes an axial stop for the screw, so that the rotation of the latter causes a variation in the angular position of the arm 2 relative to the upright 1.
  • the base of the upright 1 forms a foot 7 resting on the ground 8 and defined by a convex bent transverse plate, and the free end of the arm 2 comprises a housing 9, constituting the head of the jack, which cooperates with a prominence 10 of a vehicle underbody to be lifted and is defined by a concave bent transverse plate.
  • the arm '2 and the upright 1 are made of stamped sheet metal or folded into a U open upwards, in a known manner: they each have two parallel walls, those 2A of the arm engaging just between those 1 A of the upright, and they are sufficiently rigid so that the Y which they constitute does not deform under the load of the vehicle.
  • the variation of the angular position of the arm relative to the upright, obtained by the rotation of the screw 4, makes it possible to adjust the height of the head 9 of the jack above the ground.
  • Fig.1 shows the jack in two positions of use corresponding respectively to the ground guards of the vehicle, in line with the prominence 10, minimum h 1 (in solid lines) and maximum h 2 (in dashed lines).
  • the jack further comprises, on the side opposite to the arm 2, a crutch 11 which pivots at one end on the upright 1 about an articulation axis 12 parallel to that of the arm 3 and arranged below of the latter, between this axis 3 and the foot 7.
  • This stand extends beyond the axis 12 by an actuating lever 13 which rests elastically and sliding, under the action of a spring of twist 14, on the underside or core 15 of the arm 2.
  • the stand 11 and the lever 13 are made in one piece of metal wire bent several times at 90 °. From one end of this wire, there is: a transverse end 16 of the lever 13; the longitudinal body of the lever 13, located in the median vertical plane of the arm and the upright; a bend 17 passing outwardly through a hole 18 in one of the side walls 1 A of the upright 1 and constituting one half of the axis 12; a side strand 19 of the stand; the transverse support end 20 of the stand; the other side strand 21 of the stand, and a second bend 22 passing inward a second hole 23 of the other side wall 1 A of the upright, coaxial with the hole 18. Seen in side elevation (fig. 1 and 2 ), the stand 11- lever 13 assembly is rectilinear, with the exception of the extreme half 24 of the lever, which is bent at an obtuse angle downwards by defining a bulge 25 at the top of the elbow.
  • the spring 14 which keeps the actuating lever in abutment against the underside 15 of the arm 2 is a hairpin spring housed between the parallel walls 1 A of the upright and provided with turns surrounding the sections 17 and 22 of the metal wire constituting the crutch.
  • the support of the lever 13 on the arm 2 is effected by its bent free end 16 when the jack is in the use position (fig. 1), and by its bulge 25 when the arm 2 is closer to the upright 1 than 'in the position of use, and in particular when the jack is in its storage position shown in fig. 2.
  • the position of the stand is determined by the cooperation of its actuating lever 13 with the arm 2.
  • the folding and complete retraction of the arm 2 in the upright 1 causes, by pressing the arm on the bulge 25, the crutch 11 folds down against the upper part of the lower face 26 of the upright.
  • the spring 14 pushes the lever 13 while maintaining its bulge 25 then its end 16 in abutment the underside 15 of the arm, and therefore the stand gradually tilts down relative to the upright.
  • the dimensions of the stand 11 and of the lever 13 as well as the location of the axis 12 are provided so that the free end 20 of the stand determines with the foot 7 of the jack, when this end and this foot are simultaneously in contact with a substantially horizontal ground, a lifting surface such that the head 9 and the foot 7 of the jack are always in the vicinity of the same vertical V, as visible in FIG. 1, that the ground clearance of the vehicle at the jack is minimum h 1 , maximum h 2 or intermediate between these two values.
  • the jack is deployed so that the distance between its head 9 and its foot 7 is equal to the ground clearance of the prominence 10; the head 9 is engaged on this prominence, and by placing the stand on the ground by its end 20, it is certain that the foot 7 is located substantially vertically above the head 9, which ensures optimal stability of the vehicle as soon as '' it is lifted by the deployed jack by maneuvering the screw 4.
  • the stand is positioned by elastic support of its lever 13 against the arm 2, by means of the spring 14, has the advantage of making it eclipsable under the possible action of an excessive thrust exerted on its end 20, which thus avoids its deformation or deterioration.

Description

L'invention est relative aux crics destinés à soulever une caisse de véhicule automobile, du type dit en Y, c'est-à-dire comprenant un montant sur lequel est articulé un bras dont la position angulaire par rapport au montant est réglable, notamment au moyen d'une vis de manoeuvre portée par deux pièces s'articulant respectivement sur le bras et à la partie supérieure du montant. Les crics de ce type reposent sur le sol par un pied formé à la base du montant, et reçoivent généralement une proéminence inférieure de la caisse du véhicule dans un logement, dit tête du cric, formé à l'extrémité libre du bras.The invention relates to jacks intended to lift a motor vehicle body, of the so-called Y-shaped type, that is to say comprising an upright on which an arm is articulated whose angular position relative to the upright is adjustable, in particular by means of an operating screw carried by two parts articulated respectively on the arm and at the upper part of the upright. Jacks of this type rest on the ground by a foot formed at the base of the upright, and generally receive a lower prominence of the vehicle body in a housing, called jack head, formed at the free end of the arm.

Les crics de ce type sont simples et de bas prix de revient, mais, comme leur montant est d'autant plus incliné par rapport à la verticale que la caisse qu'ils supportent est plus basse, leur mise en place implique des précautions pour s'assurer que la tête et le pied du cric se trouvent au voisinage d'une même verticale afin de procurer une stabilité convenable au véhicule soulevé par le cric.The jacks of this type are simple and low cost, but, as their amount is more inclined relative to the vertical as the box they support is lower, their installation implies precautions for s '' ensure that the head and foot of the jack are in the vicinity of the same vertical in order to provide suitable stability to the vehicle lifted by the jack.

Pour faciliter l'obtention de la position correcte du cric, il a été proposé d'équiper le pied du cric d'une large semelle inclinée par rapport au montant de manière que lors de la mise en place du cric, en disposant la semelle à plat sur le sol, la tête du cric se trouve sur une verticale passant par la semelle quand le cric est partiellement déployé. Cependant, cette position correcte de la tête ne peut pas être satisfaite dans tous les cas étant donné que, la garde au sol du véhicule au droit du cric pouvant varier dans une large mesure en fonction notamment de la charge du véhicule, de l'état de gonflement de ses pneumatiques et de la conformation du sol, le déploiement du cric lors de sa mise en place est très variable.To facilitate obtaining the correct jack position, it has been proposed to equip the jack foot with a wide sole inclined with respect to the upright so that when the jack is put in place, by placing the sole at flat on the ground, the jack head is on a vertical passing through the sole when the jack is partially deployed. However, this correct position of the head cannot be satisfied in all cases since, the ground clearance of the vehicle in front of the jack can vary to a large extent depending in particular on the vehicle load, the condition swelling of its tires and the conformation of the ground, the deployment of the jack during its installation is very variable.

Il est également connu (voir le FR-A-2353480) d'aménager dans le montant une tige coulissante dont l'extrémité supérieure coopère avec le bras et dont l'extrémité inférieure prend appui sur le sol, directement ou par l'intermédiaire d'une semelle oscillante, constituant en quelque sorte un talon mobile pour le pied du cric, augmentant sa surface de sustentation et la rendant inclinable par rapport au montant en fonction de la position angulaire du bras, donc de la hauteur de la tête du cric, de sorte que celle-ci se trouve toujours sur une verticale passant par ladite surface de sustentation, ou à proximité, même pour un déploiement important du cric. Toutefois, la tige coulissante travaille en compression, et il s'ensuit des frottements et des risques de déformation pouvant nuire au fonctionnement du cric. De plus, cette disposition s'avère relativement coûteuse et délicate à réaliser.It is also known (see FR-A-2353480) to provide a sliding rod in the upright, the upper end of which cooperates with the arm and the lower end of which bears on the ground, directly or by means of '' an oscillating sole, constituting in a way a movable heel for the foot of the jack, increasing its lift surface and making it tiltable relative to the upright according to the angular position of the arm, therefore the height of the head of the jack, so that it is always on a vertical passing through said lift surface, or close to it, even for a large deployment of the jack. However, the sliding rod works in compression, and this results in friction and the risk of deformation which can adversely affect the operation of the jack. In addition, this arrangement is relatively expensive and difficult to achieve.

L'invention a pour but de réaliser un cric de bas prix de revient et dont la mise en place s'effectue aisément et automatiquement dans la position la plus stable.The object of the invention is to produce a jack of low cost price and the positioning of which is carried out easily and automatically in the most stable position.

A cet effet, l'invention a pour objet un cric du type susmentionné, caractérisé en ce qu'il comporte, sur le côté du montant opposé au bras, une béquille qui pivote sur le montant autour d'un axe d'articulation parallèle à celui du bras et situé au-dessous de ce dernier, et qui est prolongée vers le bras par un levier maintenu en appui sur une face inférieure du bras par un ressort, l'extrémité libre de la béquille déterminant avec le pied du cric, lorsqu'ils sont simultanément en contact avec un sol sensiblement horizontal, une surface de sustentation telle que la tête et le pied du cric se trouvent toujours au voisinage d'une même verticale.To this end, the subject of the invention is a jack of the aforementioned type, characterized in that it comprises, on the side of the upright opposite the arm, a crutch which pivots on the upright about an axis of articulation parallel to that of the arm and located below the latter, and which is extended towards the arm by a lever held in abutment on a lower face of the arm by a spring, the free end of the crutch determining with the foot of the jack, when 'They are simultaneously in contact with a substantially horizontal ground, a support surface such that the head and the foot of the jack are always in the vicinity of the same vertical.

Selon quelques caractéristiques avantageuses de l'invention:

  • - la béquille, son axe d'articulation et le levier sont réalisés avec un même fil métallique, la béquille étant formée de deux brins sensiblement parallèles reliés entre eux par un brin transversal constituant son extrémité libre d'appui sur le sol;
  • - l'appui du levier sur le bras s'effectue par son extrémité libre quand le cric est en position d'utilisation, et par un renflement situé entre cette extrémité et l'axe d'articulation de la béquille quand le bras est rabattu contre le montant en vue du rangement du cric, ce rabattement provoquant celui de la béquille contre une face inférieure du montant;
  • - le ressort est en forme d'épingle à cheveux et présente de chaque côté des spires entourant l'axe d'articulation de la béquille.
According to some advantageous features of the invention:
  • - the stand, its hinge pin and the lever are made with the same metal wire, the stand being formed of two substantially parallel strands connected together by a transverse strand constituting its free end of bearing on the ground;
  • - the lever is pressed on the arm by its free end when the jack is in the position of use, and by a bulge located between this end and the axis of articulation of the stand when the arm is folded against the upright for the storage of the jack, this folding causing that of the crutch against a lower face of the upright;
  • - The spring is in the form of a hairpin and has on each side of the turns surrounding the axis of articulation of the stand.

Un exemple de réalisation d'un cric selon l'invention est donné ci-après, avec référence au dessin annexé sur lequel:

  • la fig. 1 est une vue en élévation du cric dans deux positions d'utilisation;
  • la fig. 2 est une vue du cric en position de rangement, en élévation latérale et en coupe suivant la ligne II-II de la fig. 3, et
  • la fig. 3 est une vue de dessus en coupe partielle suivant la ligne II-II de la fig. 2.
An example embodiment of a jack according to the invention is given below, with reference to the attached drawing in which:
  • fig. 1 is an elevational view of the jack in two positions of use;
  • fig. 2 is a view of the jack in the storage position, in side elevation and in section along line II-II of FIG. 3, and
  • fig. 3 is a top view in partial section along line II-II of FIG. 2.

On voit sur la fig. 1, en traits pleins, un cric du type dit en Y comprenant un montant 1 sur lequel un bras 2 est articulé par une extrémité, autour d'un axe horizontal d'articulation 3, et une vis de manoeuvre 4 portée par deux noix 5, 6 articulées respectivement vers le milieu du bras 2 et à la partie supérieure du montant 1. La noix 5 est filetée, tandis que l'autre noix 6 constitue une butée axiale pour la vis, de sorte que la rotation de celle-ci provoque une variation de la position angulaire du bras 2 par rapport au montant 1.We see in fig. 1, in solid lines, a jack of the type known as Y comprising an upright 1 on which an arm 2 is articulated by one end, around a horizontal axis of articulation 3, and an operating screw 4 carried by two nuts 5 , 6 articulated respectively towards the middle of the arm 2 and at the upper part of the upright 1. The nut 5 is threaded, while the other nut 6 constitutes an axial stop for the screw, so that the rotation of the latter causes a variation in the angular position of the arm 2 relative to the upright 1.

La base du montant 1 forme un pied 7 reposant sur le sol 8 et défini par une plaque transversale coudée convexe, et l'extrémité libre du bras 2 comporte un logement 9, constituant la tête du cric, qui coopère avec une proéminence 10 d'un soubassement de véhicule à soulever et est défini par une plaque transversale coudée concave.The base of the upright 1 forms a foot 7 resting on the ground 8 and defined by a convex bent transverse plate, and the free end of the arm 2 comprises a housing 9, constituting the head of the jack, which cooperates with a prominence 10 of a vehicle underbody to be lifted and is defined by a concave bent transverse plate.

Le bras '2 et le montant 1 sont réalisés en tôle emboutie ou pliée en U ouvert vers le haut, de manière connue: ils comportent chacun deux parois parallèles, celles 2A du bras s'engageant juste entre celles 1 A du montant, et ils sont suffisamment rigides pour que le Y qu'ils constituent ne se déforme pas sous la charge du véhicule. La variation de la position angulaire du bras par rapport au montant, obtenue par la rotation de la vis 4, permet de régler la hauteur de la tête 9 du cric au-dessus du sol. La fig.1 montre ainsi le cric dans deux positions d'utilisation correspondant respectivement à des gardes au sol du véhicule, au droit de la proéminence 10, minimale h1 (en traits pleins) et maximale h2 (en traits mixtes).The arm '2 and the upright 1 are made of stamped sheet metal or folded into a U open upwards, in a known manner: they each have two parallel walls, those 2A of the arm engaging just between those 1 A of the upright, and they are sufficiently rigid so that the Y which they constitute does not deform under the load of the vehicle. The variation of the angular position of the arm relative to the upright, obtained by the rotation of the screw 4, makes it possible to adjust the height of the head 9 of the jack above the ground. Fig.1 shows the jack in two positions of use corresponding respectively to the ground guards of the vehicle, in line with the prominence 10, minimum h 1 (in solid lines) and maximum h 2 (in dashed lines).

Selon l'invention, le cric comporte en outre, du côté opposé au bras 2, une béquille 11 qui pivote par une extrémité sur le montant 1 autour d'un axe d'articulation 12 parallèle à celui 3 du bras et disposé au-dessous de ce dernier, entre cet axe 3 et le pied 7. Cette béquille se prolonge au-delà de l'axe 12 par un levier d'actionnement 13 qui s'appuie élastiquement et à glissement, sous l'action d'un rssort de torsion 14, sur la face inférieure ou âme 15 du bras 2.According to the invention, the jack further comprises, on the side opposite to the arm 2, a crutch 11 which pivots at one end on the upright 1 about an articulation axis 12 parallel to that of the arm 3 and arranged below of the latter, between this axis 3 and the foot 7. This stand extends beyond the axis 12 by an actuating lever 13 which rests elastically and sliding, under the action of a spring of twist 14, on the underside or core 15 of the arm 2.

Plus précisément, la béquille 11 et le levier 13 sont réalisés d'une seule pièce en fil métallique coudé plusieurs fois à 90°. A partir d'une extrémité de ce fil, on trouve: une extrémité transversale 16 du levier 13; le corps longitudinal du levier 13, situé dans le plan vertical médian du bras et du montant; un coude 17 traversant vers l'extérieur un trou 18 de l'une des parois latérales 1 A du montant 1 et constituant une moitié de l'axe 12; un brin latéral 19 de la béquille; l'extrémité transversale d'appui 20 de la béquille; l'autre brin latéral 21 de la béquille, et un second coude 22 traversant vers l'intérieur un second trou 23 de l'autre paroi latérale 1 A du montant, coaxial au trou 18. Vu en élévation latérale (fig. 1 et 2), l'ensemble béquille 11- levier 13 est rectiligne, à l'exception de la moitié extrême 24 du levier, qui est coudée à angle obtus vers le bas en définissant un renflement 25 au sommet du coude.More specifically, the stand 11 and the lever 13 are made in one piece of metal wire bent several times at 90 °. From one end of this wire, there is: a transverse end 16 of the lever 13; the longitudinal body of the lever 13, located in the median vertical plane of the arm and the upright; a bend 17 passing outwardly through a hole 18 in one of the side walls 1 A of the upright 1 and constituting one half of the axis 12; a side strand 19 of the stand; the transverse support end 20 of the stand; the other side strand 21 of the stand, and a second bend 22 passing inward a second hole 23 of the other side wall 1 A of the upright, coaxial with the hole 18. Seen in side elevation (fig. 1 and 2 ), the stand 11- lever 13 assembly is rectilinear, with the exception of the extreme half 24 of the lever, which is bent at an obtuse angle downwards by defining a bulge 25 at the top of the elbow.

Le ressort 14 qui maintient le levier d'actionnement en appui contre la face inférieure 15 du bras 2 est un ressort en épingle à cheveux logé entre les parois parallèles 1 A du montant et muni de spires entourant les tronçons 17 et 22 du fil métallique constituant la béquille. L'appui du levier 13 sur le bras 2 s'effectue par son extrémité libre coudée 16 quand le cric est en position d'utilisation (fig. 1 ), et par son renflement 25 quand le bras 2 est plus rapproché du montant 1 qu'en position d'utilisation, et notamment quand le cric se trouve dans sa position de rangement représentée à la fig. 2.The spring 14 which keeps the actuating lever in abutment against the underside 15 of the arm 2 is a hairpin spring housed between the parallel walls 1 A of the upright and provided with turns surrounding the sections 17 and 22 of the metal wire constituting the crutch. The support of the lever 13 on the arm 2 is effected by its bent free end 16 when the jack is in the use position (fig. 1), and by its bulge 25 when the arm 2 is closer to the upright 1 than 'in the position of use, and in particular when the jack is in its storage position shown in fig. 2.

La position de la béquille est déterminée par la coopération de son levier d'actionnement 13 avec le bras 2.The position of the stand is determined by the cooperation of its actuating lever 13 with the arm 2.

En position de rangement, le rabattement et l'escamotage complet du bras 2 dans le montant 1 provoquent, par appui du bras sur le renflement 25, le rabattement de la béquille 11 contre la partie supérieure de la face inférieure 26 du montant.In the storage position, the folding and complete retraction of the arm 2 in the upright 1 causes, by pressing the arm on the bulge 25, the crutch 11 folds down against the upper part of the lower face 26 of the upright.

Lorsqu'on manoeuvre la vis 4, au moyen d'une manivelle 27, de manière à déployer le cric en faisant varier la position angulaire du bras, le ressort 14 pousse le levier 13 en maintenant son renflement 25 puis son extrémité 16 en appui contre la face inférieure 15 du bras, et par conséquent la béquille bascule progressivement vers le bas par rapport au montant. Les dimensions de la béquille 11 et du levier 13 ainsi que l'emplacement de l'axe 12 sont prévus de manière que l'extrémité libre 20 de la béquille détermine avec le pied 7 du cric, lorsque cette extrémité et ce pied sont simultanément en contact avec un sol sensiblement horizontal, une surface de sustentation telle que la tête 9 et le pied 7 du cric se trouvent toujours au voisinage d'une même verticale V, comme visible sur la fig. 1, que la garde au sol du véhicule au droit du cric soit minimale h1, maximale h2 ou intermédiaire entre ces deux valeurs.When the screw 4 is operated, by means of a crank 27, so as to deploy the jack by varying the angular position of the arm, the spring 14 pushes the lever 13 while maintaining its bulge 25 then its end 16 in abutment the underside 15 of the arm, and therefore the stand gradually tilts down relative to the upright. The dimensions of the stand 11 and of the lever 13 as well as the location of the axis 12 are provided so that the free end 20 of the stand determines with the foot 7 of the jack, when this end and this foot are simultaneously in contact with a substantially horizontal ground, a lifting surface such that the head 9 and the foot 7 of the jack are always in the vicinity of the same vertical V, as visible in FIG. 1, that the ground clearance of the vehicle at the jack is minimum h 1 , maximum h 2 or intermediate between these two values.

Ainsi, lors de sa mise en place, le cric est déployé de manière que la distance entre sa tête 9 et son pied 7 soit égale à la garde au sol de la proéminence 10; la tête 9 est engagée sur cette proéminence, et en posant la béquille sur le sol par son extrémité 20, on est sûr que le pied 7 se trouve sensiblement à la verticale de la tête 9, ce qui assure une stabilité optimale du véhicule dès qu'il est soulevé par le cric déployé en manoeuvrant la vis 4.Thus, during its installation, the jack is deployed so that the distance between its head 9 and its foot 7 is equal to the ground clearance of the prominence 10; the head 9 is engaged on this prominence, and by placing the stand on the ground by its end 20, it is certain that the foot 7 is located substantially vertically above the head 9, which ensures optimal stability of the vehicle as soon as '' it is lifted by the deployed jack by maneuvering the screw 4.

Il est à noter que le fait que la béquille soit positionnée par appui élastique de son levier 13 contre le bras 2, au moyen du ressort 14, présente l'avantage de la rendre éclipsable sous l'action éventuelle d'une poussée excessive exercée sur son extrémité 20, ce qui évite ainsi sa déformation ou sa détérioration.It should be noted that the fact that the stand is positioned by elastic support of its lever 13 against the arm 2, by means of the spring 14, has the advantage of making it eclipsable under the possible action of an excessive thrust exerted on its end 20, which thus avoids its deformation or deterioration.

Claims (4)

1. A jack for a motor vehicle, of the type comprising a pillar (1) on which is pivotally mounted an arm (2) whose angular position relative to the pillar is adjustable, in particular by means of a shifting screw (4) carried by two members (5, 6) respectively pivotally mounted on the arm and on the upper part of the pillar, characterised in that it comprises, on the side of the pillar opposed to the arm, a prop (11) which is mounted on the pillar to pivot about a pivot pin (12) parallel to the pivot pin of the arm and located below the latter, and which is extended toward the arm by a lever (13) which is maintained in bearing relation to a lower surface (15) of the arm by a spring (14), the free end (20) of the prop defining with the foot (7) of the jack, when they are simultaneously in contact with a substantially horizontal ground, a support surface which is such that the head (9) and the foot (7) of the jack are always in the vicinity of a common vertical (V).
2. A jack according to Claim 1, characterised in that the prop (11), its pivot pin (12) and the lever (13) are made from the same metal wire, the prop being formed by two substantially parallel portions (19, 21) interconnected by a transverse portion (20) constituting its free end bearing on the ground.
3. A jack according to one of the Claims 1 or 2, characterised in that the lever (13) bears on the arm (2) by its free end (16) when the jack is in the position of use, and by a bulge (25) located between this end and the pivot pin (12) of the prop (11) when the arm is folded against the pillar (1) for stowing away the jack, this folding against the pillar causing the prop to be folded against a lower side (26) of the pillar.
4. A jack according to any one of the Claims 1 to 3, characterised in that the spring (14) is in the shape of a hair pin and has on each side coils surrounding the pivot pin (12) of the prop (11).
EP19830401122 1982-06-14 1983-06-02 Y-form jack for a motor vehicle Expired EP0097558B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8210329A FR2528410A1 (en) 1982-06-14 1982-06-14 CRIC IN Y FOR MOTOR VEHICLE
FR8210329 1982-06-14

Publications (2)

Publication Number Publication Date
EP0097558A1 EP0097558A1 (en) 1984-01-04
EP0097558B1 true EP0097558B1 (en) 1985-11-06

Family

ID=9274970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830401122 Expired EP0097558B1 (en) 1982-06-14 1983-06-02 Y-form jack for a motor vehicle

Country Status (4)

Country Link
EP (1) EP0097558B1 (en)
DE (1) DE3361166D1 (en)
ES (1) ES522355A0 (en)
FR (1) FR2528410A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3664900D1 (en) * 1985-05-10 1989-09-14 Bilstein August Gmbh Co Kg Jack
GB8909918D0 (en) * 1989-04-29 1989-06-14 Metallifacture Ltd Vehicle jack
ES2181510B1 (en) * 1999-05-17 2004-06-01 Batz, S.Coop. ELEVACOCHES CAT.
ES1063637Y (en) * 2006-08-04 2007-02-16 Alba Perinan Juan Manuel De ELECTROMECHANICAL CAT FOR PERFECTED VEHICLES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1011933A (en) * 1963-07-01 1965-12-01 Britool Ltd Improvements in or relating to lifting jacks
AT358769B (en) * 1974-06-07 1980-09-25 Bilstein August Fa CAR LIFT
DE2621425C3 (en) * 1976-05-14 1978-09-28 Allendorfer Fabrik Fuer Stahlverarbeitung Ing. Herbert Panne Kg, 6331 Allendorf Articulated jack
DE2625085A1 (en) * 1976-06-04 1977-12-08 Bilstein August Fa JACK
DE2801735C2 (en) * 1978-01-16 1980-03-06 Fa. August Bilstein, 5828 Ennepetal Jack

Also Published As

Publication number Publication date
ES8403082A1 (en) 1984-03-01
FR2528410B1 (en) 1985-03-22
EP0097558A1 (en) 1984-01-04
DE3361166D1 (en) 1985-12-12
ES522355A0 (en) 1984-03-01
FR2528410A1 (en) 1983-12-16

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