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EP0371900A1 - Conveyor in an installation for electrocoating motor vehicle bodies - Google Patents

Conveyor in an installation for electrocoating motor vehicle bodies Download PDF

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Publication number
EP0371900A1
EP0371900A1 EP89470022A EP89470022A EP0371900A1 EP 0371900 A1 EP0371900 A1 EP 0371900A1 EP 89470022 A EP89470022 A EP 89470022A EP 89470022 A EP89470022 A EP 89470022A EP 0371900 A1 EP0371900 A1 EP 0371900A1
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EP
European Patent Office
Prior art keywords
sledge
arm
magnet
hand
conveyor
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
EP89470022A
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German (de)
French (fr)
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EP0371900B1 (en
Inventor
Hans De Kort
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Air Industrie Systemes
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Air Industrie Systemes
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/22—Servicing or operating apparatus or multistep processes

Definitions

  • the present invention relates to a conveyor of vehicle bodies in an electro-deposition painting installation.
  • Conveyors of this type are usually made up of two aerial and parallel support rails and a sledge carrying the vehicle to be painted below the support rails, the sledge being connected to the two support rails by lifting arms.
  • each lifting arm opposite the rail to which it is suspended, is arranged a hooking hand capable of being removably attached to a corresponding crankpin of the sledge.
  • one of the two rails is electrified by an electric current of 200 to 600 volts and 500 to 800 amps.
  • the two arms suspended from this rail conduct the electric current which, via the crankpin of the sledge and the hand of the lifting arm, passes into the sledge and electrifies the vehicle placed on this sledge.
  • the removable connection between the crankpin of the sledge and the hand of the lift arm is such that the electrical contacts are, taking into account the toboggan route, more or less well done and there then appears phenomena of electric arc which tear off metal, thus increasing friction and decreasing the quality of the electrical contacts in proportions such that the electric current does not pass more.
  • the present invention therefore aims to eliminate this phenomenon of electric arc in the crankpin-hand connection of a vehicle conveyor for painting installation by electro-deposition.
  • the present invention relates more particularly to a conveyor of vehicle bodies for painting installation by electro-deposition consisting of lift arms connecting a sledge to a carrier air device in which at least one lift arm has a hand consisting of on the one hand, an attachment device for the sledge, no electric current flowing between this attachment device and the sledge, and, on the other hand, a device for conduction of electricity to the sledge.
  • Another object of the present invention is to provide a device of the type described above in which the electricity conduction device consists of a support member on which is mounted with play a magnet electrically connected to a source of electric current.
  • the support member consists of an arm extending in the direction of the sledge and having, opposite an electrical contact surface of the sledge, a cage, mounted with play on the arm, inside from which the magnet is placed.
  • the conveyor according to the invention consists of an overhead carrier device, itself made up of two overhead carrier rails 1a, 1b, parallel, of a metal sledge 2 and of four lifting arms 3a, 3b connecting the sledge 2 to the two supporting rails 1a, 1b.
  • This sledge 2 is intended to carry a body not shown.
  • the two overhead rails 1a, 1b are, for example, chain conveyors and ensure a parallel advancement, at the same speed, of the lifting arms 3a, 3b, which are fixed there.
  • the electrified rail 1a is connected to the lifting arms 3a, which terminate, at their end opposite to the rail 1a, by a hand 4a detachably connected to a crank pin 5 of the sledge 2.
  • the non-electrified rail 1b is connected to the lifting arms 3b, each arm 3b ending, at its end opposite to the rail 1b, by a hand 4b detachably connected to a crank pin 5 of the sledge 2.
  • each hand 4b connected to a non-electrified arm 3b, consists of a hook 6, for example metallic, fixed to the arm 3b by several bolts 7 with horizontal axes perpendicular to the rail 1b, the hook 6 therefore being rigidly connected to the arm 3b.
  • crank pin 5 secured to the sledge 2.
  • This crank pin 5 consists of a rod 8 having a cylindrical part 9, of horizontal axis XX perpendicular to the rail 1b, intended to come into contact with an internal radial face 10 of the hook 6, an axial locking head 11 terminating the rod 8 at its end opposite the sledge 2.
  • the sledge 2 is fixed to a hand 4a, connected to an electrified arm 3a, by a crank pin 5 identical to that used for fixing said sledge 2 to a hand 4b connected to a non-electrified arm 3b.
  • the hand 4a consists of a hook 12, the crank pin 5 and a device 13 for conduction of electricity from the arm 3a to the locking head 11 of the crank pin 5, no electric current flowing from the hook 12 to the crank pin 5 of the sledge 2.
  • the hooking hook 12 can be metallic, the connection between this hook 12 and the arm 3a then being electrically insulated.
  • the hook 12 can, for example, be made of plastic material reinforced with glass fibers.
  • crank pin 5 as illustrated in FIG. 3, is supported, by its cylindrical part 9, on the internal radial face 10 of the hook 12.
  • the device 13 for conduction of electricity consists of an arm 14 of electrically insulating material, this arm 14 being fixed to the lifting arm 3a by steel bolts 15.
  • the bolts 15 are also used to fix the hook 12 on the arm 3a, but this hook 12 could be fixed by an independent device on the arm 3a.
  • This arm 14 is extended, in the direction of the locking head 11 of the crank pin 5 and is pierced with a hole 16, of diameter D, of axis YY parallel to the axis XX of the cylindrical part 9 of the crank pin 5, in the extension of the locking head 11.
  • this hole 16 is disposed a cage 17, integral with the arm 14 but having a large clearance both along the axis Y-Y as in any direction perpendicular to this axis.
  • this cage 17 consists of a hollow cylinder 18, of axis Z-Z parallel to the axis Y-Y of the hole 16 and of external diameter less than the diameter D of the hole 16.
  • the hollow cylinder 18 ends at each of its ends by a ring 19, 20, extending the cylinder in the external radial direction and each having an external diameter greater than the diameter D of the hole 16.
  • a magnet 22 In the cage 17 is placed a magnet 22, electrically connected to the bolts 15 by a braid 23.
  • This magnet 22 is mounted movable inside the hollow cylinder 18, obstacles preventing it from leaving the cage 17 but nevertheless allowing it to come in electrical contact with the locking head 11 of the crankpin 5.
  • a prominence 24 is provided at one face 21 of the arm 14 located opposite the insulating hook 12.
  • the electrical braid 23 is replaced by a metal plate 25 fixed to the lifting arm 3a by the bolts 15, this plate 25 having a horizontal part 26 on which are fixed at least two flat metallic braids 271, 273.
  • these braids 271, 272, 273 are connected, at their end opposite to the metal plate 25, to an electrical contactor constituted by a horizontal metal plate 28 connected to the magnet 22.
  • These braids 271, 272, 273 are folded in the shape of 'C' in a plane perpendicular to the axis YY of the hole 16 of the arm 14 and to the axis ZZ of the cage 17, thus defining an external braid 271, and an internal braid 273, the internal braid being with a length L3 less than the length L1 of the braid 271, the braid 272 being of a length L2 between L1 and L3.
  • the braids 271, 272, 273 work in a vertical plane like a spring allowing a certain rotation of the magnet 22 while always making it return to its equilibrium position once the sledge 2 has been detached from the lifting arms 3a.
  • a sledge 2 must be carried by four lifting arms. Each crank pin 5 of the sledge 2 strikes the hook 6, 12, with the hand 4a, 4b of the arm of lift 3a, 3b on which it is fixed, above the opening of the hook 6, 12 below the attachment bolts 7.15.
  • crank pin 5 having struck the hook 6 above its opening below the bolts 7, simply descends inside the hook 6.
  • crank pin 5 strikes the hook 12 of an electrified arm 3a by its cylindrical part 9, the crank pin 5, through its locking head 11, strikes the protrusion 24 of this arm 14, thus drawing aside the arm 14 from the hook 12 by the natural elasticity of this arm 14.
  • crank pin 5 thus descends into the hook 12 before the cage 17 and the magnet 22 return to their original position, prior to the separation of the arm 14.
  • the device according to the invention the functions of support and conduction of electricity having been separated, the electric arcs no longer occur, electrical continuity being always perfectly ensured.
  • the great mobility of the magnet 22 in the cage 17 and the great mobility of the cage 17 relative to the arm 14 allow the magnet to follow all the movements that the crank pin 5, and therefore the locking head 11 , are likely to follow with respect to the hook 12 during the circulation of the sledge 2 in the painting installation by electro-deposition.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chain Conveyers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Spray Control Apparatus (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The present invention relates to a conveyor in an installation for electrocoating motor vehicle bodies. This conveyor consists of an overhead carrier device consisting of two parallel overhead carrier rails 1a, 1b, of a metal sledge 2 and of four supporting arms 3a, 3b connecting the sledge 2 to the two carrier rails 1a, 1b. The invention is used for conducting electricity from an electrified rail 1a to the sledge 2 in an electrocoating installation. <IMAGE>

Description

La présente invention est relative à un convoyeur de carrosseries de véhicules dans une installation de peinture par électro-déposition.The present invention relates to a conveyor of vehicle bodies in an electro-deposition painting installation.

Les convoyeurs de ce type sont habituellement constitués de deux rails porteurs aériens et parallèles et d'une luge portant le véhicule à peindre en dessous des rails porteurs, la luge étant reliée aux deux rails porteurs par des bras de sustentation .Conveyors of this type are usually made up of two aerial and parallel support rails and a sledge carrying the vehicle to be painted below the support rails, the sledge being connected to the two support rails by lifting arms.

Le véhicule étant manipulé, avant et après la peinture proprement dite, grâce à la luge, il est nécessaire que les bras de sustentation qui relient la luge aux rails aériens puissent être désolidarisés de la luge.The vehicle being handled, before and after the actual painting, thanks to the sledge, it is necessary that the lifting arms which connect the sledge to the overhead rails can be separated from the sled.

Ainsi, à l'extrémité de chaque bras de sustentation opposée au rail auquel il est suspendu, est disposée une main d'accrochage susceptible d'être fixée de manière amovible à un maneton correspondant de la luge.Thus, at the end of each lifting arm opposite the rail to which it is suspended, is arranged a hooking hand capable of being removably attached to a corresponding crankpin of the sledge.

Dans le cas d'une installation de peinture par électro-déposition, un des deux rails est électrifié par un courant électrique de 200 à 600 volts et de 500 à 800 ampères.In the case of an electroplating painting installation, one of the two rails is electrified by an electric current of 200 to 600 volts and 500 to 800 amps.

Ainsi, les deux bras suspendus à ce rail conduisent le courant électrique qui, par l'intermédiaire du maneton de la luge et de la main du bras de sustentation, passe dans la luge et électrifie le véhicule posé sur cette luge.Thus, the two arms suspended from this rail conduct the electric current which, via the crankpin of the sledge and the hand of the lifting arm, passes into the sledge and electrifies the vehicle placed on this sledge.

Or, dans une installation de peinture par électro-déposition, les rails effectuent des trajets qui montent et descendent ainsi que des virages. Or, quelque soit le trajet de ces rails, et donc de la luge portée, le courant électrique doit toujours passer.However, in a painting installation by electro-deposition, the rails carry out paths which go up and down as well as turns. However, whatever the path of these rails, and therefore of the sled carried, the electric current must always pass.

Or, la liaison amovible entre le maneton de la luge et la main du bras de sustentation est telle que les contacts électriques sont, compte tenu de l'itinéraire de la luge, plus ou moins bien réalisés et qu'il apparaît alors des phénomènes d'arc électrique qui arrachent du métal, augmentant ainsi les frottements et diminuant la qualité des contacts électriques dans des proportions telles que le courant électrique ne passe plus.However, the removable connection between the crankpin of the sledge and the hand of the lift arm is such that the electrical contacts are, taking into account the toboggan route, more or less well done and there then appears phenomena of electric arc which tear off metal, thus increasing friction and decreasing the quality of the electrical contacts in proportions such that the electric current does not pass more.

La présente invention a donc pour but de supprimer ce phénomène d'arc électrique dans la liaison maneton-main d'un convoyeur de véhicules pour installation de peinture par électro-déposition.The present invention therefore aims to eliminate this phenomenon of electric arc in the crankpin-hand connection of a vehicle conveyor for painting installation by electro-deposition.

La présente invention a plus particulièrement pour objet un convoyeur de carrosseries de véhicules pour installation de peinture par électro-déposition constitué de bras de sustentation reliant une luge à un dispositif aérien porteur dans lequel au moins un bras de sustentation présente une main constituée, d'une part, d'un dispositif d'accrochage de la luge, aucun courant électrique ne circulant entre ce dispositif d'accrochage et la luge, et, d'autre part, d'un dispositif de conduction de l'électricité vers la luge.The present invention relates more particularly to a conveyor of vehicle bodies for painting installation by electro-deposition consisting of lift arms connecting a sledge to a carrier air device in which at least one lift arm has a hand consisting of on the one hand, an attachment device for the sledge, no electric current flowing between this attachment device and the sledge, and, on the other hand, a device for conduction of electricity to the sledge.

Un autre objet de la présente invention est de réaliser un dispositif du type de celui décrit ci-­dessus dans lequel le dispositif de conduction de l'électricité est constitué d'un organe support sur lequel est monté avec jeu un aimant relié électriquement à une source de courant électrique.Another object of the present invention is to provide a device of the type described above in which the electricity conduction device consists of a support member on which is mounted with play a magnet electrically connected to a source of electric current.

Plus particulièrement, l'organe support est constitué d'un bras se prolongeant en direction de la luge et présentant, en regard d'une surface de contact électrique de la luge, une cage, montée avec jeu sur le bras, à l'intérieur de laquelle est placée l'aimant.More particularly, the support member consists of an arm extending in the direction of the sledge and having, opposite an electrical contact surface of the sledge, a cage, mounted with play on the arm, inside from which the magnet is placed.

Les caractéristiques et avantages ressortiront à la suite de la description qui va suivre faite en référence aux dessins donnés uniquement à titre d'exemple non limitatif et parmi lesquels :

  • - la Fig.1 représente une vue schématique d'un convoyeur selon l'invention,
  • - la Fig.2 représente la liaison d'un maneton et d'une main au niveau d'un bras de sustentation non électrifié,
  • - la Fig.3 représente la liaison d'un maneton et d'une main au niveau d'un bras de sustentation électrifié,
  • - la Fig.4 représente un dispositif d'alimentation en électricité d'une liaison d'un maneton et d'une main au niveau d'un bras de sustentation électrifié.
The characteristics and advantages will become apparent after the description which follows made with reference to the drawings given solely by way of non-limiting example and among which:
  • - Fig.1 shows a schematic view of a conveyor according to the invention,
  • - Fig.2 shows the connection of a crankpin and a hand at the level of a non-electrified lifting arm,
  • - Fig.3 shows the connection of a crankpin and a hand at an electrified lift arm,
  • - Fig.4 shows a device for supplying electricity to a link of a crankpin and a hand at an electrified lifting arm.

Comme illustré Fig.1, le convoyeur selon l'invention est constitué d'un dispositif aérien porteur, constitué lui-même de deux rails porteurs aériens 1a, 1b, parallèles, d'une luge 2 métallique et de quatre bras de sustentation 3a, 3b reliant la luge 2 aux deux rails porteurs 1a, 1b.As illustrated in FIG. 1, the conveyor according to the invention consists of an overhead carrier device, itself made up of two overhead carrier rails 1a, 1b, parallel, of a metal sledge 2 and of four lifting arms 3a, 3b connecting the sledge 2 to the two supporting rails 1a, 1b.

Cette luge 2 est destinée à porter une carrosserie non représentée.This sledge 2 is intended to carry a body not shown.

Les deux rails aériens 1a, 1b, sont, par exemple, des convoyeurs à chaîne et assurent un avancement en parallèle, à la même vitesse, des bras de sustentation 3a, 3b, qui y sont fixés.The two overhead rails 1a, 1b, are, for example, chain conveyors and ensure a parallel advancement, at the same speed, of the lifting arms 3a, 3b, which are fixed there.

Le rail 1a, électrifié, est relié aux bras de sustentation 3a , qui se terminent, à leur extrémité opposée au rail 1a, par une main 4a reliée de façon amovible à un maneton 5 de la luge 2.The electrified rail 1a is connected to the lifting arms 3a, which terminate, at their end opposite to the rail 1a, by a hand 4a detachably connected to a crank pin 5 of the sledge 2.

Le rail 1b, non électrifié, est relié aux bras de sustentation 3b, chaque bras 3b se terminant, à son extrémité opposée au rail 1b par une main 4b reliée de façon amovible à un maneton 5 de la luge 2.The non-electrified rail 1b is connected to the lifting arms 3b, each arm 3b ending, at its end opposite to the rail 1b, by a hand 4b detachably connected to a crank pin 5 of the sledge 2.

Comme on le voit Fig.2, chaque main 4b, reliée à un bras non électrifié 3b, est constituée d'un crochet 6, par exemple métallique, fixé au bras 3b par plusieurs boulons 7 d'axes horizontaux perpendiculaires au rail 1b, le crochet 6 étant donc lié de façon rigide au bras 3b.As seen in Fig. 2, each hand 4b, connected to a non-electrified arm 3b, consists of a hook 6, for example metallic, fixed to the arm 3b by several bolts 7 with horizontal axes perpendicular to the rail 1b, the hook 6 therefore being rigidly connected to the arm 3b.

A l'intérieur de ce crochet 6 est placé un maneton 5 solidaire de la luge 2.Inside this hook 6 is placed a crank pin 5 secured to the sledge 2.

Ce maneton 5 est constitué d'une tige 8 présentant une partie cylindrique 9 ,d'axe X-X horizontal perpendiculaire au rail 1b, destinée à venir en contact avec une face 10 radiale interne du crochet 6, une tête de verrouillage axial 11 terminant la tige 8 à son extrémité opposée à la luge 2.This crank pin 5 consists of a rod 8 having a cylindrical part 9, of horizontal axis XX perpendicular to the rail 1b, intended to come into contact with an internal radial face 10 of the hook 6, an axial locking head 11 terminating the rod 8 at its end opposite the sledge 2.

Comme on le voit Fig.3, la luge 2 est fixée à une main 4a, reliée à un bras électrifié 3a, par un maneton 5 identique à celui servant à la fixation de ladite luge 2 à une main 4b reliée à un bras non électrifié 3b.As seen in Fig.3, the sledge 2 is fixed to a hand 4a, connected to an electrified arm 3a, by a crank pin 5 identical to that used for fixing said sledge 2 to a hand 4b connected to a non-electrified arm 3b.

En revanche, la main 4a est constituée d'un crochet d'accrochage 12 , du maneton 5 et d'un dispositif 13 de conduction de l'électricité du bras 3a vers la tête de verrouillage 11 du maneton 5, aucun courant électrique ne circulant du crochet d'accrochage 12 vers le maneton 5 de la luge 2.On the other hand, the hand 4a consists of a hook 12, the crank pin 5 and a device 13 for conduction of electricity from the arm 3a to the locking head 11 of the crank pin 5, no electric current flowing from the hook 12 to the crank pin 5 of the sledge 2.

Selon un mode de réalisation de l'invention, le crochet d'accrochage 12 peut être métallique, la liaison entre ce crochet 12 et le bras 3a étant alors isolée électriquement.According to one embodiment of the invention, the hooking hook 12 can be metallic, the connection between this hook 12 and the arm 3a then being electrically insulated.

L'important est en fait qu'aucun courant électrique ne circule du crochet d'accrochage 12 vers la luge 2 afin d'éviter tout phénomène d'arc électrique à ce niveau.The important thing is in fact that no electric current flows from the hooking hook 12 towards the sledge 2 in order to avoid any phenomenon of electric arc at this level.

Selon un autre mode de réalisation de l'invention, le crochet 12 peut, par exemple, être réalisé en matière plastique renforcée par des fibres de verre.According to another embodiment of the invention, the hook 12 can, for example, be made of plastic material reinforced with glass fibers.

Le maneton 5, comme illustré Fig.3, s'appuie, par sa partie cylindrique 9, sur la face radiale interne 10 du crochet 12.The crank pin 5, as illustrated in FIG. 3, is supported, by its cylindrical part 9, on the internal radial face 10 of the hook 12.

Le dispositif 13 de conduction de l'électricité est constitué par un bras 14 en matière isolante électriquement, ce bras 14 étant fixé au bras de sustentation 3a par des boulons en acier 15.The device 13 for conduction of electricity consists of an arm 14 of electrically insulating material, this arm 14 being fixed to the lifting arm 3a by steel bolts 15.

Selon le mode de réalisation représenté Fig.3, les boulons 15 servent aussi à fixer le crochet 12 sur le bras 3a, mais ce crochet 12 pourrait être fixé par un dispositif indépendant sur le bras 3a.According to the embodiment shown in Fig.3, the bolts 15 are also used to fix the hook 12 on the arm 3a, but this hook 12 could be fixed by an independent device on the arm 3a.

Ce bras 14 se prolonge, en direction de la tête de verrouillage 11 du maneton 5 et est percé d'un trou 16, de diamètre D, d'axe Y-Y parallèle à l'axe X-X de la partie cylindrique 9 du maneton 5, dans le prolongement de la tête de verrouillage 11.This arm 14 is extended, in the direction of the locking head 11 of the crank pin 5 and is pierced with a hole 16, of diameter D, of axis YY parallel to the axis XX of the cylindrical part 9 of the crank pin 5, in the extension of the locking head 11.

Dans ce trou 16 est disposée une cage 17, solidaire du bras 14 mais présentant un jeu important tant selon l'axe Y-Y que selon toute direction perpendiculaire à cet axe.In this hole 16 is disposed a cage 17, integral with the arm 14 but having a large clearance both along the axis Y-Y as in any direction perpendicular to this axis.

Selon le mode de réalisation représenté Fig.3, cette cage 17 est constituée d'un cylindre 18 creux, d'axe Z-Z parallèle à l'axe Y-Y du trou 16 et de diamètre externe inférieur au diamètre D du trou 16.According to the embodiment shown in FIG. 3, this cage 17 consists of a hollow cylinder 18, of axis Z-Z parallel to the axis Y-Y of the hole 16 and of external diameter less than the diameter D of the hole 16.

Le cylindre creux 18 se termine à chacune de ses extrémités par un anneau 19, 20, prolongeant le cylindre dans le sens radial externe et présentant chacun un diamètre externe supérieur au diamètre D du trou 16.The hollow cylinder 18 ends at each of its ends by a ring 19, 20, extending the cylinder in the external radial direction and each having an external diameter greater than the diameter D of the hole 16.

Dans la cage 17 est placé un aimant 22, relié électriquement aux boulons 15 par une tresse 23. Cet aimant 22 est monté mobile à l'intérieur du cylindre creux 18, des obstacles lui interdisant de sortir de la cage 17 mais lui permettant pourtant de rentrer en contact électrique avec la tête de verrouillage 11 du maneton 5.In the cage 17 is placed a magnet 22, electrically connected to the bolts 15 by a braid 23. This magnet 22 is mounted movable inside the hollow cylinder 18, obstacles preventing it from leaving the cage 17 but nevertheless allowing it to come in electrical contact with the locking head 11 of the crankpin 5.

Par ailleurs, à une face 21 du bras 14 située en vis à vis du crochet isolant 12, une proéminence 24 est ménagée.Furthermore, at one face 21 of the arm 14 located opposite the insulating hook 12, a prominence 24 is provided.

Selon une variante du dispositif de la Fig.3 représenté Fig.4, la tresse électrique 23 est remplacée par une plaque métallique 25 fixée au bras de sustentation 3a par les boulons 15, cette plaque 25 présentant une partie horizontale 26 sur laquelle viennent se fixer au moins deux tresses métalliques plates 271, 273.According to a variant of the device of Fig.3 shown in Fig.4, the electrical braid 23 is replaced by a metal plate 25 fixed to the lifting arm 3a by the bolts 15, this plate 25 having a horizontal part 26 on which are fixed at least two flat metallic braids 271, 273.

Selon un mode de réalisation de l'invention ces tresses sont au nombre de trois.According to one embodiment of the invention, there are three of these braids.

Comme illustré Fig.4, ces tresses 271, 272, 273 sont reliées, à leur extrémité opposée à la plaque métallique 25, à un contacteur électrique constitué plaque métallique horizontale 28 reliée à l'aimant 22. Ces tresses 271, 272, 273 sont pliées en forme de 'C' dans un plan perpendiculaire à l'axe Y-Y du trou 16 du bras 14 et à l'axe Z-Z de la cage 17, définissant ainsi une tresse externe 271, et une tresse interne 273, la tresse interne étant d'une longueur L3 inférieure à la longueur L1 de la tresse 271, la tresse 272 étant d'une longueur L2 comprise entre L1 et L3.As illustrated in FIG. 4, these braids 271, 272, 273 are connected, at their end opposite to the metal plate 25, to an electrical contactor constituted by a horizontal metal plate 28 connected to the magnet 22. These braids 271, 272, 273 are folded in the shape of 'C' in a plane perpendicular to the axis YY of the hole 16 of the arm 14 and to the axis ZZ of the cage 17, thus defining an external braid 271, and an internal braid 273, the internal braid being with a length L3 less than the length L1 of the braid 271, the braid 272 being of a length L2 between L1 and L3.

Ainsi, les tresses 271, 272, 273, travaillent dans un plan vertical comme un ressort permettant une certaine rotation de l'aimant 22 en le faisant toujours revenir à sa position d'équilibre une fois la luge 2 désolidarisée des bras de sustentation 3a.Thus, the braids 271, 272, 273 work in a vertical plane like a spring allowing a certain rotation of the magnet 22 while always making it return to its equilibrium position once the sledge 2 has been detached from the lifting arms 3a.

Le fonctionnement du dispositif selon l'invention est le suivant.The operation of the device according to the invention is as follows.

Une luge 2 doit être portée par quatre bras de sustentation. Chaque maneton 5 de la luge 2 vient frapper le crochet 6, 12 ,de la main 4a, 4b du bras de sustentation 3a, 3b sur laquelle il se fixe, au dessus de l'ouverture du crochet 6, 12 en dessous des boulons d'accrochage 7,15 .A sledge 2 must be carried by four lifting arms. Each crank pin 5 of the sledge 2 strikes the hook 6, 12, with the hand 4a, 4b of the arm of lift 3a, 3b on which it is fixed, above the opening of the hook 6, 12 below the attachment bolts 7.15.

En ce qui concerne les bras non électrifiés 3b, le maneton 5 , ayant frappé le crochet 6 au dessus de son ouverture en dessous des boulons 7, descend simplement à l'intérieur du crochet 6.As regards the non-electrified arms 3b, the crank pin 5, having struck the hook 6 above its opening below the bolts 7, simply descends inside the hook 6.

En revanche, quand le maneton 5 frappe le crochet 12 d'un bras électrifié 3a par sa partie cylindrique 9, le maneton 5, par sa tête de verrouillage 11, vient frapper la proéminence 24 de ce bras 14, écartant ainsi le bras 14 du crochet 12 par l'élasticité naturelle de ce bras 14.On the other hand, when the crank pin 5 strikes the hook 12 of an electrified arm 3a by its cylindrical part 9, the crank pin 5, through its locking head 11, strikes the protrusion 24 of this arm 14, thus drawing aside the arm 14 from the hook 12 by the natural elasticity of this arm 14.

Le maneton 5 descend ainsi dans le crochet 12 avant que la cage 17 et l'aimant 22 ne reprennent leur position d'origine, antérieurement à l'écartement du bras 14.The crank pin 5 thus descends into the hook 12 before the cage 17 and the magnet 22 return to their original position, prior to the separation of the arm 14.

A la suite de cela, l'aimant 22 vient en contact avec la tête de verrouillage 11 du maneton 5, assurant ainsi la continuité électrique du dispositif.Following this, the magnet 22 comes into contact with the locking head 11 of the crank pin 5, thus ensuring the electrical continuity of the device.

Grâce au dispositif selon l'invention, les fonctions de support et de conduction de l'électricité ayant été séparées, les arcs électriques ne se produisent plus, la continuité électrique étant toujours parfaitement assurée.Thanks to the device according to the invention, the functions of support and conduction of electricity having been separated, the electric arcs no longer occur, electrical continuity being always perfectly ensured.

Plus particulièrement, la grande mobilité de l'aimant 22 dans la cage 17 et la grande mobilité de la cage 17 par rapport au bras 14 permettent à l'aimant de suivre tous les mouvements que le maneton 5, et donc la tête de verrouillage 11, sont susceptibles de suivre par rapport au crochet 12 lors de la circulation de la luge 2 dans l'installation de peinture par électro-­déposition.More particularly, the great mobility of the magnet 22 in the cage 17 and the great mobility of the cage 17 relative to the arm 14 allow the magnet to follow all the movements that the crank pin 5, and therefore the locking head 11 , are likely to follow with respect to the hook 12 during the circulation of the sledge 2 in the painting installation by electro-deposition.

Claims (5)

1- Convoyeur de carrosseries de véhicules pour installation de peinture par électro-déposition constitué de bras de sustentation (3a, 3b) reliant une luge (2) à un dispositif aérien porteur (1a, 1b) caractérisé en ce que au moins un bras de sustentation (3a) présente une main (4a) constituée, d'une part, d'un dispositif d'accrochage (12) de la luge (2), aucun courant électrique ne circulant entre ce dispositif d'accrochage (12) et la luge (2), et, d'autre part, d'un dispositif (13) de conduction de l'électricité vers la luge (2).1- Conveyor of vehicle bodies for painting installation by electro-deposition consisting of lifting arms (3a, 3b) connecting a sledge (2) to a carrier air device (1a, 1b) characterized in that at least one lift (3a) has a hand (4a) consisting, on the one hand, of an attachment device (12) of the sledge (2), no electric current flowing between this attachment device (12) and the sledge (2), and, on the other hand, a device (13) for conduction of electricity to the sledge (2). 2- Convoyeur selon la revendication 1 caractérisé en ce que le dispositif (13) de conduction de l'électricité est constitué d'un organe support (14-17) sur lequel est monté avec jeu un aimant (22) relié électriquement à un source de courant électrique par un dispositif (23, 271-272-273)2- Conveyor according to claim 1 characterized in that the device (13) for conduction of electricity consists of a support member (14-17) on which is mounted with clearance a magnet (22) electrically connected to a source of electric current by a device (23, 271-272-273) 3- Convoyeur selon la revendication 2 caractérisé en ce que l'organe support (14-17) de l'aimant (22) est constitué d'un bras (14) se prolongeant en direction de la luge (2) et présentant, en regard d'une surface (11) de contact électrique de la luge (2), une cage (17), montée avec jeu sur le bras (14), à l'intérieur de laquelle est placé l'aimant (22).3- Conveyor according to claim 2 characterized in that the support member (14-17) of the magnet (22) consists of an arm (14) extending in the direction of the sledge (2) and having, in look of an electrical contact surface (11) of the sledge (2), a cage (17), mounted with play on the arm (14), inside which is placed the magnet (22). 4- Convoyeur selon la revendication 2 caractérisé en ce que le dispositif (271-272-273) reliant électriquement l'aimant (22) à la source de courant électrique est constitué d'une plaque métallique (25) dont une partie horizontale (26) est reliée à au moins deux tresses metalliques plates (271, 273) reliées à leur extrémité opposée à la partie horizontale (26) à un contacteur électrique constitué d'une plaque horizontale (28) relié à l'aimant (22).4- Conveyor according to claim 2 characterized in that the device (271-272-273) electrically connecting the magnet (22) to the source of electric current consists of a metal plate (25) including a horizontal part (26 ) is connected to at least two flat metal braids (271, 273) connected at their opposite end to the horizontal part (26) to an electrical contactor consisting of a horizontal plate (28) connected to the magnet (22). 5- Convoyeur selon la revendication 4 caractérisé en ce que les tresses (271, 273) sont pliées en forme de 'C' dans un plan perpendiculaire à un axe (Z-Z) de la cage (17), définissant une tresse interne (273) de longueur L3 inférieure à la longueur L1 d'une tresse externe (271) .5- Conveyor according to claim 4 characterized in that the braids (271, 273) are folded in the shape of 'C' in a plane perpendicular to an axis (ZZ) of the cage (17), defining an internal braid (273) of length L3 less than the length L1 of an external braid (271).
EP19890470022 1988-11-28 1989-11-16 Conveyor in an installation for electrocoating motor vehicle bodies Expired - Lifetime EP0371900B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815790 1988-11-28
FR8815790A FR2639655B1 (en) 1988-11-28 1988-11-28 VEHICLE BODY CONVEYOR IN AN ELECTRO-DEPOSITION PAINTING SYSTEM

Publications (2)

Publication Number Publication Date
EP0371900A1 true EP0371900A1 (en) 1990-06-06
EP0371900B1 EP0371900B1 (en) 1993-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890470022 Expired - Lifetime EP0371900B1 (en) 1988-11-28 1989-11-16 Conveyor in an installation for electrocoating motor vehicle bodies

Country Status (4)

Country Link
EP (1) EP0371900B1 (en)
DE (1) DE68905303T2 (en)
ES (1) ES2039924T3 (en)
FR (1) FR2639655B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524866A1 (en) * 1991-07-23 1993-01-27 Automobiles Peugeot Electrolytic installation more particularly to paint a car body by cataphorese
FR2679705A1 (en) * 1991-07-24 1993-01-29 Ugine Sa Device for electrical connection between an electrode and a current supply
ES2056015A1 (en) * 1991-02-02 1994-09-01 Duerr Gmbh & Co Cleaning device for a contact element of a car-body skid in a paint plant
EP0654548A1 (en) * 1993-11-23 1995-05-24 Nütro Maschinen- und Anlagenbau GmbH &amp; Co. KG Apparatus for immersion paiting
FR2742770A1 (en) * 1995-12-21 1997-06-27 Peugeot Device for the distribution of electricity by sliding contact
FR2807769A1 (en) * 2000-04-14 2001-10-19 Peugeot Citroen Automobiles Sa Electrolytic apparatus for electrophoretic painting of structures, e.g., a car body, has structure support handling unit which rests on lower ends of gantry arms on two electrically-conducting coaxial hinge pins

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232641A1 (en) * 1982-09-02 1984-03-08 Volkswagenwerk Ag, 3180 Wolfsburg System operating in the manner of an electric immersion coating system
EP0146437A1 (en) * 1983-11-14 1985-06-26 Thomas Norman Urquhart Electrodeposition system and method therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232641A1 (en) * 1982-09-02 1984-03-08 Volkswagenwerk Ag, 3180 Wolfsburg System operating in the manner of an electric immersion coating system
EP0146437A1 (en) * 1983-11-14 1985-06-26 Thomas Norman Urquhart Electrodeposition system and method therefor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2056015A1 (en) * 1991-02-02 1994-09-01 Duerr Gmbh & Co Cleaning device for a contact element of a car-body skid in a paint plant
EP0524866A1 (en) * 1991-07-23 1993-01-27 Automobiles Peugeot Electrolytic installation more particularly to paint a car body by cataphorese
FR2679572A1 (en) * 1991-07-23 1993-01-29 Peugeot ELECTROLYTIC INSTALLATION, IN PARTICULAR FOR PAINTING AN AUTOMOTIVE VEHICLE BODY BY CATAPHORESIS.
FR2679705A1 (en) * 1991-07-24 1993-01-29 Ugine Sa Device for electrical connection between an electrode and a current supply
EP0654548A1 (en) * 1993-11-23 1995-05-24 Nütro Maschinen- und Anlagenbau GmbH &amp; Co. KG Apparatus for immersion paiting
FR2742770A1 (en) * 1995-12-21 1997-06-27 Peugeot Device for the distribution of electricity by sliding contact
FR2807769A1 (en) * 2000-04-14 2001-10-19 Peugeot Citroen Automobiles Sa Electrolytic apparatus for electrophoretic painting of structures, e.g., a car body, has structure support handling unit which rests on lower ends of gantry arms on two electrically-conducting coaxial hinge pins

Also Published As

Publication number Publication date
FR2639655B1 (en) 1991-01-11
DE68905303T2 (en) 1993-12-02
FR2639655A1 (en) 1990-06-01
ES2039924T3 (en) 1993-10-01
EP0371900B1 (en) 1993-03-10
DE68905303D1 (en) 1993-04-15

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