EP0765699B1 - Straightening bench for vehicle bodies - Google Patents

Straightening bench for vehicle bodies Download PDF

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Publication number
EP0765699B1
EP0765699B1 EP19960401921 EP96401921A EP0765699B1 EP 0765699 B1 EP0765699 B1 EP 0765699B1 EP 19960401921 EP19960401921 EP 19960401921 EP 96401921 A EP96401921 A EP 96401921A EP 0765699 B1 EP0765699 B1 EP 0765699B1
Authority
EP
European Patent Office
Prior art keywords
frame
straightener
frame according
bolt
configuration
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 - Lifetime
Application number
EP19960401921
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German (de)
French (fr)
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EP0765699A1 (en
Inventor
Pierre Legrand
Jean-Claude Chollat
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.)
Blackhawk SA
Original Assignee
Blackhawk SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR9511383A external-priority patent/FR2739309B1/en
Priority claimed from FR9610338A external-priority patent/FR2752538B1/en
Application filed by Blackhawk SA filed Critical Blackhawk SA
Publication of EP0765699A1 publication Critical patent/EP0765699A1/en
Application granted granted Critical
Publication of EP0765699B1 publication Critical patent/EP0765699B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/14—Straightening frame structures
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration

Definitions

  • the invention relates to a straightening frame for automobile bodywork according to the preamble of claim 1, which should allow damage to be rectified caused by small or even larger accidents.
  • the reverse operation necessary for dismantling the vehicle when the rectification work has been carried out, involves a succession reverse of steps.
  • the object of the invention is to simplify the straightening operations, thanks to a new straightening frame which is, even taken with its straightening tools, compact, easy to use, and requiring low number of maneuvers or operations.
  • the invention provides a straightening frame for automobile body as defined in claim 1.
  • Figure 1 shows the permanent elements of a chassis rectifier according to the invention.
  • This straightening frame essentially comprises a frame central 1, an anchoring frame 2, a lifting device 3, and four pads wheel support 4.
  • the central frame 1 is in principle fixed to the device for uplift 3 so to form together with the latter a sort of lift table with advantageously vertical movement.
  • this central frame 1 includes essentially two beams 1A and 1B intended to be parallel to the axis longitudinal of a body to be straightened, as well as two crossbeams 1C and 1D ensuring a joining of these beams to one another.
  • the lifting device 3 has the function of lifting or lower the central frame from the ground level 1. It can be anything appropriate known type; it can thus be a lifting table with deformable parallelogram, ensuring, during the lifting movement or lowering, a longitudinal displacement. However, in view of a good positioning of this central frame 1 relative to the anchoring frame 2 (see below), it is preferable, as has just been indicated, that this lifting has an essentially vertical movement. This is why, in the example shown, the lifting device comprises two pairs side of lifting arm, the arms of each pair being articulated in middle portions to each other. Of course this configuration requires the lower (respectively upper) ends of the arms can get closer or away.
  • the central frame 1 has, for its cooperation with the lifting arms, two legs attachment 1E and 1F, integral with one of the crosspieces, here the crosspiece 1C, thus that two longitudinal guide rails 1G and 1H, arranged near the crossbar 1D: the upper ends of two of the lifting arms are attached to the lugs 1E and 1F, while the upper ends of the two other lifting arms are slidably mounted in the 1G rails and 1H.
  • the same arrangement is provided for the lower ends of these lifting arms, lugs and guide rails (not shown) being provided either on a floor frame or directly on the floor.
  • the longitudinal members 1A and 1B of the central frame 1 are hollow so as to be able to receive sliding bars 4A secured to the wheel support pads 4.
  • FIG. 4 An elementary module formed by such a bar 4A and a shoe wheel support is shown in isolation in Figure 4. It is advantageously provided with handles 10 intended to facilitate handling.
  • the central frame 1 is in fact associated with four modules of the type of that of the FIG. 4, more precisely two modules identical to that of FIG. 4 and two symmetrical modules of it with respect to a longitudinal plane of the 4A bar.
  • a module of the type of that of FIG. 4 is for example by a pin not shown passing through a transverse bore 11 of the bar 4A and by a pair of bores 12 formed at one end of a beam of this frame 1.
  • this spar or this bar comprises a plurality of holes or bores, whereby the position of the support module of wheels of figure 4 (or of its symmetrical) can be modified inside a side member of the central frame 1.
  • the central frame 1 is intended to be able to move in height relative to the anchoring frame 2 when the latter remains in configuration low, for example on the ground.
  • This anchoring frame 2 essentially comprises two side rails 2A and 2B secured to one another by two cross members 2C and 2D. It is essentially on the beams 2A and 2B that clamping tools, classics of which Figure 5 gives an example, are intended to be fixed by any appropriate means not shown.
  • each lateral spar is formed of two tubes arranged side by side so as to provide between them a slot through which can be arranged bolts or any other suitable element allowing to lock in place the clamping tools.
  • the lateral spar 2A comprises two tubes 2A1 and 2A2, here of square section, delimiting a slot 2A3. So preferred, these side members have tubular transverse portions hollow, marked 2E, here three in number per beam, that is each spar has two end portions and one portion intermediate.
  • this device essentially comprises a chassis bar 20 in two parts A and B, an arm 21 articulated on the part Intended to cooperate with a force application element, not shown, such a chain, a jack 22 articulated at its ends on part A of the bar chassis 20 and on the arm 21, an operating lever 23 and, so advantageous, the rolling bodies represented under the reference general 24.
  • the straightening device adapted to be engaged in the 2E housings can, instead of the articulated arm type of the Figure 6A, be of the vector type (with a cylinder acting directly on a chain) or of the type with mobile towers of traction (where pulleys of chains are mounted on tubular towers).
  • the two parts A and B of the bar 20 are connected one to the other by a link C allowing a relative rotation between A and B around here a longitudinal horizontal axis L-L.
  • part A and the elements 21 and 22 rotate right or left relative to part B.
  • a rotation locking device is provided so that place arm 21 in the alignment conditions necessary to apply the required tensile forces.
  • a part E shown in the FIG. 6B, comprises a series of holes 25 arranged on an arc of a circle centered on the L-L axis. This part is fixed on the edge of part B.
  • the edge of part A which is opposite, has a part comprising a longitudinal bore in which a finger slides lock D: the choice of the relative position between A and B is made by the choice a hole 25 of the part E in which the finger D.
  • the finger D is connected by a rod F to the lever 23 which thus allows, according to its angular position around its transverse axis of articulation, whether or not to lock Part A against Part B.
  • the tilt adjustment of part A is all the more fine as there are many holes 25 (11 holes in FIG. 6B).
  • the running gear is preferably fixed to the part B.
  • a straightening tool such as that of FIGS. 6A and 6B can be put in place by sliding the bar 20 in any of the hollow tubular portions 2E of one or other of the frame rails 2.
  • the temporary fixing of this tool in the hollow tubular portion advantage is chosen, as in the case of removable fixing modules 4 to the central frame of FIG. 3, by pins not shown cooperating with appropriate bores or holes.
  • the longitudinal members of the central frame advantageously have a same internal section as these hollow portions, thanks to which, after removal of a module 4 (bars 4A and 20 having similar sections identical), they can also receive for sliding and fixing the bar 20 of the straightening tool.
  • the anchoring frame 2 is intended to be secured at will to the central frame 1.
  • This joining can be done by any appropriate means. In particular by snap-fastening or by screw or bolt.
  • the central frame 1 comprises, on its crosspieces 1C and 1D, ears 13 of which only those fixed at crossbar 1C are visible.
  • the anchoring frame 2 comprises, for its part, preferably on sleepers, namely the aforementioned sleepers 2C or 2D or on additional ties, a plurality of vertically projecting pins identified 14. These pins 14 are, in the example considered, threaded at least on their the top part. Each of these pins 14 is intended to cooperate with a lug 13 of the central frame 1. The screwing of a bolt not shown on the threaded parts of the pins 14, after they have crossed the ears 13 of the frame 1, allows an effective joining of frames 1 and 2.
  • these pins 14 also provide a centering function. from the central frame to the anchor frame. In a variant not shown, the pins 14 only provide this centering function while the joining of the two frames is carried out in other places, for example by means of transverse pins passing simultaneously through the side members of the two frames.
  • the joining of the frames to each other can be carried out automatically, for example by snaps of any known type appropriate. It is therefore preferable to provide a safety device which guarantees permanent locking of the two assembly pawls frames, lock which is only removed when the central frame descends to the ground; only then is the user free to separate the two frames.
  • Figures 7 to 9 show a locking block particularly suitable for being fixed under a cross member of the frame central, for example at the locations shown in dashed lines under the reference 30 of FIG. 3 (there is preferably a locking block in each of the four corners).
  • This block comprises a bolt 31 movable horizontally, having a projecting configuration in which it enters a housing 32 formed in a portion forming a keeper integral with the anchoring frame 2.
  • the block includes a lock body 33 in which is formed a horizontal bore 34, here of circular section, in which the bolt can slide.
  • a retaining circlip 35 is provided at the exit from this housing, in an annular groove 36, to prevent any escape of the bolt.
  • Another circlip 35 is provided at the other end of the bore 34, used to retain a washer 37 on which a spring 38 is supported; this spring is compressed between this washer 37 and the rear edge of the bolt, thus urging the latter towards its protruding locking configuration.
  • a control rod 39 is fixed to the rear of the bolt thanks to what a traction force can be applied to the bolt to retract it. This pulling can be connected to a pedal or an operating handle not represented.
  • a vertical light is provided through the bolt 40 elongated parallel to the axis of the bore.
  • the bolt also has a transverse bearing 41.
  • a lower bore 42 is further provided. Opening downwards and an upper bore 43 of larger diameter, here closed by a cover 44.
  • the horizontal transverse dimension of the bore lower 42 is substantially equal to that of light (see Figure 8); this lower bore is facing the light.
  • a finger locking device adapted to slide vertically.
  • This finger 45 has a rod 46 passing vertically through the lumen 40 and the lower bore.
  • This finger further comprises a head 47 adapted to slide in the upper bore as far as bore 34 so as to come opposite the transverse bearing 41.
  • this transverse bearing 41 is tangent to the front of the lumen and the lowering of the head into the bore 34 is made possible by 48 lateral flats bordering the light.
  • a spring 49 bearing on the cover 44 applies to the finger 45 a vertical push down.
  • the length of the rod 46 is such that this rod is protruding downwards when the head comes into the bore opposite the shoulder; this head is preferably higher than the shoulder 41 whereby the finger 45 is in any configuration held horizontally by each of the bores 42 and 43.
  • the device of FIGS. 7 to 9 therefore ensures locking which can in practice be neutralized only in the low configuration of frame 1 and so also from frame 2.
  • the side members of the central frame 1 internally run along the side members of the anchoring frame 2. Like the wheel support pads 4 removably attached to the side members of the internal frame 1 are projecting outward sideways, it is understood that these pads are substantially in the extension of the frame rails anchor 2. In this way, these side members constitute a running track allowing the rolling up and down on a vehicle's wheels automobile.
  • the elements 4A and 20 which engage in tubular portions 1A-1B or 2E of the frame are of square section. He ... not This is of course only an example, it being specified that any other section would be possible. However, it is preferable that this section be polygonal so as to facilitate locking in relative rotation between the parts to be joined by fitting.
  • the invention provides for the use of two frames which can be made integral or not, depending on the maneuver to which, due to their respective dimensions, combine to carry out the functions of lifting by the wheels and clamping by the lips of underbody welding.
  • a straightening frame of the type which has just been described is intended for use in bodywork repair for the functions of diagnostics and measurements, light repairs, and heavy repairs or case restructuring.
  • Figures 14 to 20 show a second chassis of straightening 100 which corresponds to a preferred embodiment of the invention. Its general structure is very similar to that of the first mode of realization, and its constituent elements which correspond to those of this first chassis are designated by reference numbers which are deduced from those Figures 1 to 13 by adding the number 100.
  • This straightening frame 100 thus comprises a central frame 101, an anchoring frame 102, a lifting device 103 and four pads wheel support 104.
  • the anchoring frame 102 with its longitudinal members 102A, 102B, 102C and 102D (advantageously formed of two tubes separated by a slot), differs little from frame 2 of figure 2 only by the presence of portions 102F longitudinal hollow tubulars in addition to tubular portions hollow cross sections 102E.
  • the mounting positions of the traction tools in are increased.
  • this anchoring frame 102 which carries blocks locking 130 intended to cooperate with pins 114 formed on the central frame 101.
  • the pins 114 are, in FIG. 16, located substantially at the corners of the rectangle formed by the side members 101A, 101B, 101C and 101D. Alone one of these pawns 114 is visible in this figure, thanks to a tearing partial.
  • the lifting device 103 is advantageously a autonomous device, comprising a lower chassis 103A, a chassis upper 103B and pivoting arms 103C.
  • This device is autonomous, in that meaning that it has an upper frame (it can therefore be a table any lift usable independently of the central frame or the frame anchor) and in that it is this upper frame (and not the swivel arms themselves) that the central frame 101 is attached.
  • This central framework includes effect two cross members 101E adapted to be fixed, for example twice four bolts, at the two transverse edges of the upper chassis 103B of the lifting device.
  • the wheel bearing pads 104 are advantageously grouped in pairs within two wheel support elements 160 of which one is shown in Figure 18.
  • This wheel support element 160 can be analyzed as being formed of two elementary modules of the type of FIG. 4, formed each of a bar 104A and a shoe 104 (located either on the right or on the left), and a cross member 104B connecting these two modules. This results in a better rigidity and greater ease of adjustment.
  • the bars 104A are intended to slide, preferably by means of bearings not shown, in hollow tubular portions of the frame rails central; the length of the connecting crosspiece 104B is therefore equal to the distance separating these hollow tubular portions.
  • This element 160 is adapted to be selectively blocked in one of several possible positions vis-à-vis the central frame so as to ability to adapt to different types of car wheelbases.
  • the hollow tubular portions of the side members of the central frame are provided with several holes while the bars 104A have retractable transverse pins 161 controlled, by through a linkage not shown, by means of a lever or handle 162 accessible to the operator, opening for example inside the grips 110, which guarantees a certain protection of these levers or handles 162 vis-à-vis in particular possible shocks.
  • Figures 19 and 20 show the combination of a block of locking 130 of the frame 102 of FIG. 15 and of a pin 114 of the frame 101 of Figure 16.
  • the block 130 comprises a lock body 133 in which is provided a vertical bore 134 adapted to receive the pin 114, and a housing horizontal 135 in which the blade 131 can slide.
  • This blade 131 is pushed towards the bore by springs side 136 while a cylinder 137, for example pneumatic, is provided for maneuver this blade back and forth (against the springs) and reciprocally.
  • the blade is for this purpose coupled to the piston 138 of the jack by lateral rods 139 passing through the springs.
  • a lower vertical orifice 142 and an upper housing 143 of larger section adapted to receive a locking finger 145 comprising a guide rod sliding in the orifice 142 connected to a head 147 adapted to come, in a low configuration finger 145, behind the blade 131 when the latter is projecting. So there is, as in FIGS. 7 to 9, a locking in assembly configuration. This finger is held in this low configuration by a spring 148.
  • the locking finger has, in this configuration lower, a portion projecting downwards, here an elastic support 149.
  • this support comes to a stop, in a damped manner thanks to its elastic nature, against a support surface not shown (as in Figures 7 to 9) located at ground level, which causes the raising the finger to a high configuration in which the head 147 is above the blade which can therefore move back: a separation between the block 130 and pawn 114 is then possible, but only because the frames are at ground level.

Description

L'invention concerne un châssis de redressage pour carrosserie automobile selon le préambule de la revendication 1, devant permettre le redressage des dommages occasionnés par de petits accidents, voire par des accidents plus importants.The invention relates to a straightening frame for automobile bodywork according to the preamble of claim 1, which should allow damage to be rectified caused by small or even larger accidents.

Le redressage d'une carrosserie automobile pour en supprimer les déformations induites par un accident implique en pratique l'application d'efforts de traction en des endroits judicieusement choisis de la carrosserie.The straightening of an automobile body to remove it the deformations induced by an accident in practice implies the application tensile forces in carefully selected locations on the body.

Les équipements actuellement disponibles pour effectuer de tels petits travaux de redressage sont encombrants, puissants, nécessitent de nombreuses manipulations et la mise en oeuvre d'un grand nombre d'éléments intermédiaires indépendants tels que tabourets, chandelles, rampes amovibles. Or, ces éléments intermédiaires sont souvent volumineux et lourds à déplacer, de sorte qu'une surface importante est nécessaire pour leur rangement ; quant à leur manipulation, elle demande du temps et de l'énergie. Ces éléments intermédiaires n'ont pourtant pas d'autres fonctions que celles de contribuer à mettre en place le véhicule sur un cadre d'ancrage, et à l'en enlever.The equipment currently available to perform such small straightening jobs are bulky, powerful, require many manipulations and the implementation of a large number of elements independent intermediaries such as stools, candles, removable ramps. However, these intermediate elements are often bulky and heavy to move, so that a large area is necessary for their storage; when handling them requires time and energy. These elements intermediaries have no other function than that of contributing to place the vehicle on an anchor frame, and remove it.

A titre d'exemple, la mise en place d'un véhicule sur un châssis de redressage comporte typiquement les étapes suivantes :

  • le châssis de redressage est positionné au sol, et les éléments de bridage qui servent à ancrer la carrosserie vis-à-vis de ce châssis sont démontés pour que la voiture puisse être roulée au-dessus du châssis ;
  • si un organe élévateur est intégré dans le châssis de redressage, la hauteur par rapport au sol de cet organe élévateur et du châssis est telle que des rampes sont indispensables pour rouler la voiture au-dessus du châssis ; il est donc nécessaire de prévoir une étape de positionnement de ces rampes ;
  • la voiture est amenée par roulement au-dessus du châssis ;
  • la voiture est soulevée par application au châssis d'un effort de soulèvement, par exemple par l'intermédiaire de l'organe élévateur précité ;
  • les rampes d'accès sont retirées ;
  • des chandelles ou des tabourets sont positionnés entre le sol et les roues de la voiture, ou, en variante, entre le sol et le soubassement de la carrosserie de la voiture ;
  • la voiture est abaissée jusqu'à ce que le contact soit obtenu entre la carrosserie avec les tabourets ou les chandelles ;
  • on ramène le châssis au niveau du sol, la carrosserie étant supportée par lesdits tabourets ou les chandelles ;
  • on monte sur le châssis de redressage les différents éléments de bridage tels que traverses, pinces, etc., destinés à une bonne solidarisation de la carrosserie de la voiture au châssis ; ce bridage ou cette fixation se fait en fait près de joints (ou lèvres) de soudure inférieurs de la carrosserie ;
  • le châssis de redressage, équipé de ces éléments de bridage, est soulevé jusqu'à ce que ces éléments de bridage viennent en contact avec la carrosserie de la voiture aux emplacements appropriés ;
  • les chandelles ou tabourets, qui ne sont plus en contact avec la voiture, sont retirés du dessous du véhicule ;
  • l'organe élévateur est abaissé en sorte de pouvoir recevoir pour fixation le bras de redressage, c'est-à-dire l'organe mécanique qui va servir à appliquer des efforts de traction en des endroits appropriés de la carrosserie déformée ;
  • on met en place ce bras de redressage sur le châssis ;
  • le châssis équipé du bras de redressage est soulevé en sorte de permettre à l'opérateur de redressage de travailler à hauteur d'homme.
For example, the installation of a vehicle on a straightening frame typically comprises the following steps:
  • the righting frame is positioned on the ground, and the clamping elements which serve to anchor the bodywork with respect to this frame are removed so that the car can be rolled over the frame;
  • if a lifting member is integrated in the straightening chassis, the height from the ground of this lifting member and the chassis is such that ramps are essential for rolling the car over the chassis; it is therefore necessary to provide a step for positioning these ramps;
  • the car is rolled over the chassis;
  • the car is lifted by applying a lifting effort to the chassis, for example by means of the aforementioned lifting member;
  • the access ramps are removed;
  • candles or stools are positioned between the ground and the wheels of the car, or, alternatively, between the ground and the underbody of the car body;
  • the car is lowered until contact is obtained between the body with stools or candles;
  • the chassis is brought back to ground level, the bodywork being supported by said stools or candles;
  • the various clamping elements such as crosspieces, clamps, etc. are mounted on the straightening chassis, intended for good attachment of the car body to the chassis; this clamping or fixing is in fact done near the lower weld joints (or lips) of the bodywork;
  • the straightening frame, equipped with these clamping elements, is raised until these clamping elements come into contact with the body of the car at the appropriate locations;
  • candles or stools, which are no longer in contact with the car, are removed from under the vehicle;
  • the lifting member is lowered so as to be able to receive for fixing the straightening arm, that is to say the mechanical member which will be used to apply tensile forces in appropriate places of the deformed body;
  • this straightening arm is put in place on the chassis;
  • the chassis fitted with the straightening arm is raised so that the straightening operator can work at breast height.

L'opération inverse, nécessaire pour le démontage du véhicule quand les travaux de redressage ont été effectués, comporte une succession inverse d'étapes.The reverse operation, necessary for dismantling the vehicle when the rectification work has been carried out, involves a succession reverse of steps.

Il a aussi été proposé, dans le document FR-A-2 581 634, un chariot élévateur pour la manipulation de véhicules automobiles et de marbres de redressement de véhicules. Pour effectuer des opérations de redressement, il faut amener le chariot au centre du marbre et mettre ce marbre en une configuration de travail ; il faut ensuite de nombreuses étapes pour mettre en place le véhicule sur l'assemblage temporaire du marbre et du chariot, en appui sur ses bas de caisse, puis l'évacuer après redressement. L'encombrement global est celui du marbre.It has also been proposed, in document FR-A-2 581 634, a trolley lift for handling motor vehicles and marble vehicle straightening. To carry out recovery operations, it must bring the carriage to the center of the marble and put this marble in one working configuration; then it takes many steps to set up places the vehicle on the temporary assembly of the marble and the carriage, resting on its rocker panels, then evacuate it after recovery. Congestion overall is that of marble.

L'invention a pour objet de simplifier les opérations de redressage, grâce à un nouveau châssis de redressage qui soit, même pris avec son outillage de redressage, compact, facile à mettre en oeuvre, et nécessitant un faible nombre de manoeuvres ou d'opérations.The object of the invention is to simplify the straightening operations, thanks to a new straightening frame which is, even taken with its straightening tools, compact, easy to use, and requiring low number of maneuvers or operations.

L'invention propose à cet effet un châssis de redressage pour carrosserie automobile tel que défini dans la revendication 1.To this end, the invention provides a straightening frame for automobile body as defined in claim 1.

On appréciera que :

  • la présence du dispositif de soulèvement, assurant un levage vertical, permet à l'opérateur de travailler sans avoir à se baisser;
  • la possibilité de fixer, ou non, le cadre d'ancrage au cadre central, et donc de soumettre, ou non, ce cadre d'ancrage à l'action du dispositif de soulèvement, permet une grand sécurité d'emploi, puisque ces cadres permettent à eux deux, sans qu'il soit nécessaire d'assurer une manutention de l'un d'entre eux par rapport à l'autre, de soulever la carrosserie, au choix, par ses roues, ou par sa carrosserie par l'intermédiaire d'éléments de bridage, en éliminant la mise en oeuvre, nécessitant un bon synchronisme, des quatre tabourets nécessaires selon les techniques antérieures ;
  • compte tenu de ce que l'organe de soulèvement et le cadre central se trouvent être en service, mais aussi en une éventuelle configuration de stockage, dans l'encombrement du cadre d'ancrage, le châssis de redressage de l'invention se révèle plus compact que les solutions antérieures faisant intervenir des équipements auxiliaires tels que tabourets ;
  • le châssis de redressage conforme à l'invention, permet à volonté de travailler en toute sécurité sur la carrosserie, lorsque celle-ci est fixée par les éléments de bridage au châssis d'ancrage, mais aussi lorsque celle-ci est simplement soutenue par les patins d'appui de roues du cadre central ;
  • le châssis de redressage, pris dans son ensemble , peut, selon les besoins, être mobile ou fixe par rapport au sol ; lorsqu'il est fixe, une fosse peut être prévue en-dessous de manière à minimiser l'encombrement en hauteur du châssis en configuration abaissée ; quant à la mobilité du châssis de redressage dans son ensemble, elle peut être tout simplement obtenue, avec une grande sécurité d'emploi, par la mobilité du dispositif de soulèvement, qui, étant en principe fixé au cadre central, occupe en conséquence une position centrale vis-à-vis du châssis, et se révèle donc permettre un déplacement dans une bonne configuration d'équilibre.
We will appreciate that:
  • the presence of the lifting device, ensuring vertical lifting, allows the operator to work without having to bend down;
  • the possibility of fixing, or not, the anchoring frame to the central frame, and therefore of subjecting, or not, this anchoring frame to the action of the lifting device, allows great job security, since these frames allow them two, without the need to ensure handling of one of them relative to the other, to lift the body, optionally, by its wheels, or by its body by the intermediate clamping elements, eliminating the implementation, requiring good synchronism, of the four stools necessary according to the prior techniques;
  • taking into account that the lifting member and the central frame are found to be in service, but also in a possible storage configuration, in the size of the anchoring frame, the straightening frame of the invention proves more compact than previous solutions involving auxiliary equipment such as stools;
  • the righting frame according to the invention allows at will to work safely on the body, when the latter is fixed by the clamping elements to the anchoring frame, but also when the latter is simply supported by the wheel pads for the central frame;
  • the straightening frame, taken as a whole, can, as required, be mobile or fixed relative to the ground; when it is fixed, a pit can be provided below so as to minimize the overall height of the chassis in the lowered configuration; as for the mobility of the straightening frame as a whole, it can be quite simply obtained, with great safety of use, by the mobility of the lifting device, which, being in principle fixed to the central frame, consequently occupies a position central with respect to the chassis, and therefore proves to allow movement in a good equilibrium configuration.

Selon des enseignements préférés de l'invention, éventuellement combinés :

  • au moins deux patins d'appui de roues sont reliés par une traverse de liaison,
  • lesdites barres sont amovibles en sorte de permettre l'engagement par coulissement d'une barre d'appui d'un équipement de redressage,
  • les barres et les longerons comportent des alésages et perçages adaptés à venir en regard, en plusieurs configurations relatives des patins d'appui de roues par rapport au cadre central, et à recevoir conjointement des goupilles d'assujettissement temporaire,
  • l'une au moins des barres comporte au moins un pion transversal rétractable attelé à une poignée extérieure de manoeuvre,
  • cette poignée extérieure est située à l'intérieur d'une poignée de préhension dont ce patin d'appui de roues ou sa barre est muni,
  • le dispositif de soulèvement est à mouvement essentiellement vertical,
  • le dispositif de soulèvement comporte deux paires de bras de soulèvement articulés l'un à l'autre en des portions médianes,
  • ce dispositif de soulèvement comporte un châssis supérieur auquel le cadre central est fixé,
  • l'un des cadres comporte des pions de centrage destinés à pénétrer verticalement dans des oreilles ménagées sur l'autre des cadres,
  • les pions comportent une extrémité filetée adaptée à coopérer avec des écrous, ces pions, ces oreilles et ces écrous constituant des moyens d'assujettissement temporaire des deux cadres,
  • les moyens d'assujettissement temporaire comportent un pêne à mouvement horizontal comportant une portée arrière d'appui adaptée à venir en butée, en une configuration en saillie de ce pêne, en appui contre un doigt vertical de verrouillage tant que ce doigt reste en une configuration abaissée, ce pêne étant libre de coulisser en arrière lorsque ce doigt est en une configuration haute,
  • ledit pêne fait partie d'un bloc de verrouillage solidaire de l'un des cadres qui comporte un trou vertical adapté à recevoir un pion vertical solidaire de l'autre cadre, ce pêne étant adapté à venir en saillie dans ce trou,
  • ce pêne est une lame horizontale assujettie au piston d'un vérin,
  • des ressorts sollicitent élastiquement le pêne vers sa configuration de saillie,
  • les longerons du cadre d'ancrage comportent des portions transversales tubulaires creuses adaptées à recevoir, pour une solidarisation temporaire, une barre d'appui d'un équipement de redressage.
According to preferred teachings of the invention, possibly combined:
  • at least two wheel bearing pads are connected by a connecting cross member,
  • said bars are removable so as to allow engagement by sliding of a support bar of straightening equipment,
  • the bars and the side members have bores and holes adapted to come opposite, in several relative configurations of the wheel bearing pads with respect to the central frame, and to jointly receive pins for temporary securing,
  • at least one of the bars comprises at least one retractable transverse pin coupled to an external operating handle,
  • this external handle is situated inside a grip handle with which this wheel bearing pad or its bar is provided,
  • the lifting device is essentially vertical in movement,
  • the lifting device comprises two pairs of lifting arms articulated to each other in median portions,
  • this lifting device comprises an upper frame to which the central frame is fixed,
  • one of the frames has centering pins intended to penetrate vertically into ears formed on the other of the frames,
  • the pins have a threaded end adapted to cooperate with nuts, these pins, these ears and these nuts constituting means for temporarily securing the two frames,
  • the temporary securing means comprise a bolt with horizontal movement comprising a rear bearing surface adapted to come into abutment, in a protruding configuration of this bolt, pressing against a vertical locking finger as long as this finger remains in a configuration lowered, this bolt being free to slide back when this finger is in a high configuration,
  • said bolt is part of a locking block secured to one of the frames which has a vertical hole adapted to receive a vertical pin secured to the other frame, this bolt being adapted to protrude into this hole,
  • this bolt is a horizontal blade fixed to the piston of a jack,
  • springs elastically urge the bolt towards its projection configuration,
  • the longitudinal members of the anchoring frame comprise hollow tubular transverse portions adapted to receive, for temporary attachment, a support bar of straightening equipment.

Des objets, caractéristiques et avantages de l'invention ressortent de la description qui suit, donnée à titre d'exemple, en regard des dessins annexés sur lesquels :

  • la figure 1 est une vue en perspective d'un châssis de redressage conforme à l'invention ;
  • la figure 2 est une vue en perspective du cadre d'ancrage de ce châssis de redressage ;
  • la figure 3 est une vue en perspective du cadre central du châssis de redressage ;
  • la figure 4 est une vue en perspective d'un patin de support de roues, adapté à être fixé au cadre central ;
  • la figure 5 est une vue en perspective d'un exemple d'outillage de bridage, adapté à être fixé au cadre d'ancrage de la figure 2 ;
  • la figure 6A est une vue schématique en perspective d'un outillage de traction, adapté à être fixé transversalement au cadre d'ancrage de la figure 2 ;
  • la figure 6B est une vue de sa pièce en éventail ;
  • la figure 7 est une vue en coupe verticale d'un ensemble de verrouillage selon une variante de réalisation ;
  • la figure 8 en est une vue en coupe selon la ligne VIII-VIII ;
  • la figure 9 en est une vue de dessus avec arrachement partiel ;
  • la figure 10 est une vue de côté du châssis de redressage de la figure 1, en configuration abaissée ;
  • la figure 11 est une vue de côté de ce châssis, dans une configuration où le cadre central seul est soulevé au-dessus du cadre d'ancrage, ce qui permet la mise en place des éléments de bridage ;
  • la figure 12 est une vue de côté de ce châssis de redressage, dans une configuration où une carrosserie est fixée aux éléments de bridage, en une configuration basse du châssis ;
  • la figure 13 est une vue de côté du châssis de redressage, dans une configuration soulevée, et dans laquelle une carrosserie est fixée à ce châssis par les éléments de bridage;
  • la figure 14 est une vue en perspective d'un autre châssis de redressage conforme à l'invention ;
  • la figure 15 est une vue en perspective du cadre d'ancrage du dispositif de la figure 14 ;
  • la figure 16 est une vue en perspective du cadre central de ce dispositif de la figure 14 ;
  • la figure 17 est une vue en perspective du dispositif de soulèvement de ce dispositif ;
  • la figure 18 est une vue en perspective d'un élément de support de roues de ce dispositif ;
  • la figure 19 est une vue en coupe verticale de l'ensemble de verrouillage de ce dispositif ; et
  • la figure 20 est une vue en coupe de cet ensemble de verrouillage selon la ligne brisée XX-XX de la figure 19.
Objects, characteristics and advantages of the invention appear from the following description, given by way of example, with reference to the appended drawings in which:
  • Figure 1 is a perspective view of a straightening frame according to the invention;
  • Figure 2 is a perspective view of the anchoring frame of this straightening frame;
  • Figure 3 is a perspective view of the central frame of the straightening frame;
  • Figure 4 is a perspective view of a wheel support pad, adapted to be fixed to the central frame;
  • Figure 5 is a perspective view of an exemplary clamping tool, adapted to be fixed to the anchoring frame of Figure 2;
  • FIG. 6A is a schematic perspective view of a traction tool, adapted to be fixed transversely to the anchoring frame of FIG. 2;
  • Figure 6B is a view of its fan-shaped part;
  • Figure 7 is a vertical sectional view of a locking assembly according to an alternative embodiment;
  • Figure 8 is a sectional view along the line VIII-VIII;
  • Figure 9 is a top view with partial cutaway;
  • Figure 10 is a side view of the straightening frame of Figure 1, in the lowered configuration;
  • Figure 11 is a side view of this frame, in a configuration where the central frame alone is raised above the anchoring frame, which allows the establishment of the clamping elements;
  • FIG. 12 is a side view of this straightening frame, in a configuration where a bodywork is fixed to the clamping elements, in a low configuration of the frame;
  • FIG. 13 is a side view of the straightening frame, in a raised configuration, and in which a bodywork is fixed to this frame by the clamping elements;
  • Figure 14 is a perspective view of another straightening frame according to the invention;
  • Figure 15 is a perspective view of the anchoring frame of the device of Figure 14;
  • Figure 16 is a perspective view of the central frame of this device of Figure 14;
  • Figure 17 is a perspective view of the lifting device of this device;
  • Figure 18 is a perspective view of a wheel support member of this device;
  • Figure 19 is a vertical sectional view of the locking assembly of this device; and
  • FIG. 20 is a sectional view of this locking assembly along the broken line XX-XX of FIG. 19.

La figure 1 représente les éléments permanents d'un châssis de redressage conforme à la l'invention.Figure 1 shows the permanent elements of a chassis rectifier according to the invention.

Ce châssis de redressage comporte essentiellement un cadre central 1, un cadre d'ancrage 2, un dispositif de soulèvement 3, et quatre patins d'appui de roues 4.This straightening frame essentially comprises a frame central 1, an anchoring frame 2, a lifting device 3, and four pads wheel support 4.

Le cadre central 1 est en principe fixé au dispositif de soulèvement 3 en sorte de former conjointement avec ce dernier une sorte de table élévatrice à mouvement avantageusement vertical.The central frame 1 is in principle fixed to the device for uplift 3 so to form together with the latter a sort of lift table with advantageously vertical movement.

Tel que représenté sur la figure 3, ce cadre central 1 comporte essentiellement deux longerons 1A et 1B destinés à être parallèles à l'axe longitudinal d'une carrosserie à redresser, ainsi que deux traverses 1C et 1D assurant une solidarisation de ces longerons l'un à l'autre. As shown in Figure 3, this central frame 1 includes essentially two beams 1A and 1B intended to be parallel to the axis longitudinal of a body to be straightened, as well as two crossbeams 1C and 1D ensuring a joining of these beams to one another.

Le dispositif de soulèvement 3 a pour fonction de soulever ou d'abaisser par rapport au niveau du sol le cadre central 1. Il peut être de tout type connu approprié ; il peut ainsi s'agir d'une table élévatrice à parallélogramme déformable, assurant, lors du mouvement de soulèvement ou d'abaissement, un déplacement longitudinal. Toutefois, en vue d'un bon positionnement de ce cadre central 1 par rapport au cadre d'ancrage 2 (voir plus loin), il est préférable, comme cela vient d'être indiqué, que ce dispositif de soulèvement ait un mouvement essentiellement vertical. C'est pourquoi, dans l'exemple représenté, le dispositif de soulèvement comporte deux paires latérales de bras de soulèvement, les bras de chaque paire étant articulés en des portions médianes l'un à l'autre. Bien entendu cette configuration impose que les extrémités inférieures (respectivement supérieures) des bras puissent se rapprocher ou s'écarter.The lifting device 3 has the function of lifting or lower the central frame from the ground level 1. It can be anything appropriate known type; it can thus be a lifting table with deformable parallelogram, ensuring, during the lifting movement or lowering, a longitudinal displacement. However, in view of a good positioning of this central frame 1 relative to the anchoring frame 2 (see below), it is preferable, as has just been indicated, that this lifting has an essentially vertical movement. This is why, in the example shown, the lifting device comprises two pairs side of lifting arm, the arms of each pair being articulated in middle portions to each other. Of course this configuration requires the lower (respectively upper) ends of the arms can get closer or away.

Selon une disposition classique en soi, le cadre central 1 comporte, pour sa coopération avec les bras de soulèvement, deux pattes d'attache 1E et 1F, solidaires de l'une des traverses, ici la traverse 1C, ainsi que deux rails de guidage longitudinaux 1G et 1H, disposés auprès de la traverse 1D : les extrémités supérieures de deux des bras de soulèvement sont fixées aux pattes d'attache 1E et 1F, tandis que les extrémités supérieures des deux autres bras de soulèvement sont montées coulissantes dans les rails 1G et 1H. La même disposition est prévue pour les extrémités inférieures de ces bras de soulèvement, des pattes d'attache et des rails de guidage (non représentés) étant prévus soit sur un cadre de sol, soit directement sur le sol.According to a conventional arrangement in itself, the central frame 1 has, for its cooperation with the lifting arms, two legs attachment 1E and 1F, integral with one of the crosspieces, here the crosspiece 1C, thus that two longitudinal guide rails 1G and 1H, arranged near the crossbar 1D: the upper ends of two of the lifting arms are attached to the lugs 1E and 1F, while the upper ends of the two other lifting arms are slidably mounted in the 1G rails and 1H. The same arrangement is provided for the lower ends of these lifting arms, lugs and guide rails (not shown) being provided either on a floor frame or directly on the floor.

Les longerons 1A et 1B du cadre central 1 sont creux de manière à pouvoir recevoir en coulissement des barres 4A solidaires des patins d'appui de roues 4.The longitudinal members 1A and 1B of the central frame 1 are hollow so as to be able to receive sliding bars 4A secured to the wheel support pads 4.

Un module élémentaire formé d'une telle barre 4A et d'un patin d'appui de roues est représenté à titre isolé à la figure 4. Il est avantageusement muni de poignées 10 destinées à en faciliter la manipulation. Au cadre central 1 sont en fait associés quatre modules du type de celui de la figure 4, plus précisément deux modules identiques à celui de la figure 4 et deux modules symétriques de celui-ci par rapport à un plan longitudinal de la barre 4A.An elementary module formed by such a bar 4A and a shoe wheel support is shown in isolation in Figure 4. It is advantageously provided with handles 10 intended to facilitate handling. The central frame 1 is in fact associated with four modules of the type of that of the FIG. 4, more precisely two modules identical to that of FIG. 4 and two symmetrical modules of it with respect to a longitudinal plane of the 4A bar.

La fixation d'un module du type de celui de la figure 4 à l'intérieur d'un longeron du cadre 1 de la figure 3 se fait par exemple par une goupille non représentée passant par un alésage transversal 11 de la barre 4A et par une paire d'alésages 12 ménagés à une extrémité d'un longeron de ce cadre 1. De manière préférée, ce longeron ou cette barre comporte une pluralité de perçages ou d'alésages, grâce à quoi la position du module d'appui de roues de la figure 4 (ou de son symétrique) peut être modifiée à l'intérieur d'un longeron du cadre central 1.The fixing of a module of the type of that of FIG. 4 to the interior of a frame member of Figure 1 is for example by a pin not shown passing through a transverse bore 11 of the bar 4A and by a pair of bores 12 formed at one end of a beam of this frame 1. Preferably, this spar or this bar comprises a plurality of holes or bores, whereby the position of the support module of wheels of figure 4 (or of its symmetrical) can be modified inside a side member of the central frame 1.

Le cadre central 1 est destiné à pouvoir se déplacer en hauteur par rapport au cadre d'ancrage 2 lorsque ce dernier reste en configuration basse, par exemple en appui au sol.The central frame 1 is intended to be able to move in height relative to the anchoring frame 2 when the latter remains in configuration low, for example on the ground.

Ce cadre d'ancrage 2 comporte essentiellement deux longerons latéraux 2A et 2B solidarisés l'un à l'autre par deux traverses 2C et 2D. C'est essentiellement sur les longerons 2A et 2B que des outils de bridage, classiques dont la figure 5 donne un exemple, sont destinés à être fixés par tout moyen approprié non représenté. De manière avantageuse, chaque longeron latéral est formé de deux tubes disposés côte à côte en sorte de ménager entre eux une fente au travers de laquelle peuvent être disposés des boulons ou tout autre élément approprié permettant de bloquer en place les outils de bridage. Ainsi, à titre d'exemple, le longeron latéral 2A comporte deux tubes 2A1 et 2A2, ici de section carrée, délimitant une fente 2A3. De manière préférée, ces longerons comportent des portions transversales tubulaires creuses, repérées 2E, ici au nombre de trois par longeron, c'est-à-dire que chaque longeron comporte deux portions extrêmes et une portion intermédiaire.This anchoring frame 2 essentially comprises two side rails 2A and 2B secured to one another by two cross members 2C and 2D. It is essentially on the beams 2A and 2B that clamping tools, classics of which Figure 5 gives an example, are intended to be fixed by any appropriate means not shown. Advantageously, each lateral spar is formed of two tubes arranged side by side so as to provide between them a slot through which can be arranged bolts or any other suitable element allowing to lock in place the clamping tools. Thus, by way of example, the lateral spar 2A comprises two tubes 2A1 and 2A2, here of square section, delimiting a slot 2A3. So preferred, these side members have tubular transverse portions hollow, marked 2E, here three in number per beam, that is each spar has two end portions and one portion intermediate.

Ces portions tubulaires creuses sont avantageusement destinées à permettre la fixation au cadre d'ancrage d'un équipement de redressage de tout type connu approprié tel que celui représenté aux figures 6A et 6B. Dans l'exemple représenté, ce dispositif comporte essentiellement une barre de châssis 20 en deux parties A et B, un bras 21 articulé sur la partie A destiné à coopérer avec un élément d'application d'effort, non représenté, tel qu'une chaíne, un vérin 22 articulé en ses extrémités sur la partie A de la barre de châssis 20 et sur le bras 21, un levier de manoeuvre 23 et, de manière avantageuse, des organes de roulement représentés sous la référence générale 24. En variante non représentée, le dispositif de redressage adapté à être engagé dans les logements 2E peut, au lieu du type à bras articulé de la figure 6A, être du type à vecteurs (avec un vérin agissant directement sur une chaíne) ou du type à tours mobiles de traction (où des poulies de chaínes sont montées sur des tours tubulaires).These hollow tubular portions are advantageously intended to allow the attachment to the anchoring frame of straightening of any suitable known type such as that shown in the figures 6A and 6B. In the example shown, this device essentially comprises a chassis bar 20 in two parts A and B, an arm 21 articulated on the part Intended to cooperate with a force application element, not shown, such a chain, a jack 22 articulated at its ends on part A of the bar chassis 20 and on the arm 21, an operating lever 23 and, so advantageous, the rolling bodies represented under the reference general 24. In a variant not shown, the straightening device adapted to be engaged in the 2E housings can, instead of the articulated arm type of the Figure 6A, be of the vector type (with a cylinder acting directly on a chain) or of the type with mobile towers of traction (where pulleys of chains are mounted on tubular towers).

Les deux parties A et B de la barre 20 sont reliées l'une à l'autre par une liaison C permettant une rotation relative entre A et B autour d'un axe ici horizontal longitudinal L-L.The two parts A and B of the bar 20 are connected one to the other by a link C allowing a relative rotation between A and B around here a longitudinal horizontal axis L-L.

En pivotant sur l'axe d'assemblage, la partie A et les éléments 21 et 22 effectuent une rotation à droite ou à gauche par rapport à la partie B.By pivoting on the assembly axis, part A and the elements 21 and 22 rotate right or left relative to part B.

Un dispositif de verrouillage de la rotation est prévu en sorte de placer le bras 21 dans les conditions d'alignement nécessaires pour appliquer les efforts de traction nécessaires.A rotation locking device is provided so that place arm 21 in the alignment conditions necessary to apply the required tensile forces.

Dans l'exemple représenté, une pièce E, représentée à la figure 6B, comporte une série de perçages 25 disposés sur un arc de cercle centré sur l'axe L-L. Cette pièce est fixée sur la tranche de la partie B.In the example shown, a part E, shown in the FIG. 6B, comprises a series of holes 25 arranged on an arc of a circle centered on the L-L axis. This part is fixed on the edge of part B.

La tranche de la partie A, qui est en regard, comporte une pièce comportant un perçage longitudinal dans lequel coulisse un doigt de verrouillage D : le choix de la position relative entre A et B se fait par le choix d'un trou 25 de la pièce E dans laquelle on fait rentrer le doigt D.The edge of part A, which is opposite, has a part comprising a longitudinal bore in which a finger slides lock D: the choice of the relative position between A and B is made by the choice a hole 25 of the part E in which the finger D.

Le doigt D est relié par une tige F au levier 23 qui permet ainsi, selon sa position angulaire autour de son axe transversal d'articulation, de verrouiller, ou non, la partie A vis-à-vis de la partie B. The finger D is connected by a rod F to the lever 23 which thus allows, according to its angular position around its transverse axis of articulation, whether or not to lock Part A against Part B.

Le réglage en inclinaison de la partie A est d'autant plus fin que les trous 25 sont nombreux (11 trous à la figure 6B).The tilt adjustment of part A is all the more fine as there are many holes 25 (11 holes in FIG. 6B).

Les organes de roulement sont de préférence fixés à la partie B.The running gear is preferably fixed to the part B.

Un outil de redressage tel que celui des figures 6A et 6B peut être mis en place par coulissement de la barre 20 dans l'une quelconque des portions tubulaires creuses 2E de l'un ou l'autre des longerons du cadre d'ancrage 2. La fixation temporaire de cet outil dans la portion tubulaire creuse choisie se fait avantageusement, comme dans le cas de la fixation amovible des modules 4 au cadre central de la figure 3, par des goupilles non représentées coopérant avec des alésages ou des perçages appropriés.A straightening tool such as that of FIGS. 6A and 6B can be put in place by sliding the bar 20 in any of the hollow tubular portions 2E of one or other of the frame rails 2. The temporary fixing of this tool in the hollow tubular portion advantage is chosen, as in the case of removable fixing modules 4 to the central frame of FIG. 3, by pins not shown cooperating with appropriate bores or holes.

Les longerons du cadre central ont avantageusement une même section interne que ces portions creuses, grâce à quoi, après enlèvement d'un module 4 (les barres 4A et 20 ayant de même des sections identiques), ils peuvent eux aussi recevoir pour coulissement et fixation la barre 20 de l'outil de redressage.The longitudinal members of the central frame advantageously have a same internal section as these hollow portions, thanks to which, after removal of a module 4 (bars 4A and 20 having similar sections identical), they can also receive for sliding and fixing the bar 20 of the straightening tool.

Le cadre d'ancrage 2 est destiné à être solidarisé à volonté au cadre central 1.The anchoring frame 2 is intended to be secured at will to the central frame 1.

Cette solidarisation peut se faire par tout moyen approprié. Notamment par encliquetage ou par vis ou boulon.This joining can be done by any appropriate means. In particular by snap-fastening or by screw or bolt.

Dans l'exemple représenté aux figures 2 et 3, le cadre central 1 comporte, sur ses traverses 1C et 1D, des oreilles 13 dont seules celles fixées à la traverse 1C sont visibles. Le cadre d'ancrage 2 comporte quant à lui, de préférence sur des traverses, à savoir les traverses précitées 2C ou 2D ou sur des traverses additionnelles, une pluralité de pions en saillie verticale repérés 14. Ces pions 14 sont, dans l'exemple considéré, filetés au moins sur leur partie supérieure. Chacun de ces pions 14 est destiné à coopérer avec une oreille 13 du cadre central 1. Le vissage d'un boulon non représenté sur les parties filetées des pions 14, après que ceux-ci aient traversé les oreilles 13 du cadre 1, permet une solidarisation efficace des cadres 1 et 2. In the example shown in Figures 2 and 3, the central frame 1 comprises, on its crosspieces 1C and 1D, ears 13 of which only those fixed at crossbar 1C are visible. The anchoring frame 2 comprises, for its part, preferably on sleepers, namely the aforementioned sleepers 2C or 2D or on additional ties, a plurality of vertically projecting pins identified 14. These pins 14 are, in the example considered, threaded at least on their the top part. Each of these pins 14 is intended to cooperate with a lug 13 of the central frame 1. The screwing of a bolt not shown on the threaded parts of the pins 14, after they have crossed the ears 13 of the frame 1, allows an effective joining of frames 1 and 2.

En fait, ces pions 14 assurent aussi une fonction de centrage du cadre central vis-à-vis du cadre d'ancrage. En variante non représentée, les pions 14 n'assurent que cette fonction de centrage tandis que la solidarisation des deux cadres s'effectue en d'autres endroits, par exemple au moyen de goupilles transversales traversant simultanément les longerons des deux cadres.In fact, these pins 14 also provide a centering function. from the central frame to the anchor frame. In a variant not shown, the pins 14 only provide this centering function while the joining of the two frames is carried out in other places, for example by means of transverse pins passing simultaneously through the side members of the two frames.

La solidarisation des cadres l'un à l'autre peut être effectuée de façon automatique, par exemple par des encliquetages de tout type connu approprié. Il est alors préférable de prévoir un dispositif de sécurité qui garantisse un verrouillage permanent des cliquets d'assemblage des deux cadres, verrouillage qui n'est supprimé qu'au moment où le cadre central redescend au sol ; ce n'est qu'alors que l'utilisateur est libre de séparer les deux cadres.The joining of the frames to each other can be carried out automatically, for example by snaps of any known type appropriate. It is therefore preferable to provide a safety device which guarantees permanent locking of the two assembly pawls frames, lock which is only removed when the central frame descends to the ground; only then is the user free to separate the two frames.

C'est ainsi par exemple que les figures 7 à 9 représentent un bloc de verrouillage notamment adapté à être fixé sous une traverse du cadre central, par exemple aux emplacements représentés en tiretés sous la référence 30 de la figure 3 (il y a de préférence un bloc de verrouillage en chacun des quatre coins).For example, Figures 7 to 9 show a locking block particularly suitable for being fixed under a cross member of the frame central, for example at the locations shown in dashed lines under the reference 30 of FIG. 3 (there is preferably a locking block in each of the four corners).

Ce bloc comporte un pêne 31 mobile horizontalement, ayant une configuration en saillie dans laquelle il pénètre dans un logement 32 ménagé dans une portion formant gâche solidaire du cadre d'ancrage 2.This block comprises a bolt 31 movable horizontally, having a projecting configuration in which it enters a housing 32 formed in a portion forming a keeper integral with the anchoring frame 2.

Le bloc comporte un corps de verrou 33 dans lequel est ménagé un alésage horizontal 34, ici de section circulaire, dans lequel le pêne peut coulisser. Un circlips de retenue 35 est prévu à la sortie de ce logement, dans une gorge annulaire 36, pour empêcher tout échappement du pêne.The block includes a lock body 33 in which is formed a horizontal bore 34, here of circular section, in which the bolt can slide. A retaining circlip 35 is provided at the exit from this housing, in an annular groove 36, to prevent any escape of the bolt.

Un autre circlips 35 est prévu à l'autre extrémité de l'alésage 34, servant à retenir une rondelle 37 sur laquelle un ressort 38 prend appui ; ce ressort est comprimé entre cette rondelle 37 et la tranche arrière du pêne, sollicitant donc ce dernier vers sa configuration de verrouillage en saillie. Another circlip 35 is provided at the other end of the bore 34, used to retain a washer 37 on which a spring 38 is supported; this spring is compressed between this washer 37 and the rear edge of the bolt, thus urging the latter towards its protruding locking configuration.

Un tirant de commande 39 est fixé à l'arrière du pêne grâce à quoi un effort de traction peut être appliqué au pêne pour l'escamoter. Ce tirant peut être connecté à une pédale ou une poignée de manoeuvre non représentée.A control rod 39 is fixed to the rear of the bolt thanks to what a traction force can be applied to the bolt to retract it. This pulling can be connected to a pedal or an operating handle not represented.

Au travers du pêne est ménagée une lumière verticale 40 allongée parallèlement à l'axe de l'alésage. Le pêne comporte en outre une portée transversale 41.A vertical light is provided through the bolt 40 elongated parallel to the axis of the bore. The bolt also has a transverse bearing 41.

Dans le bloc 33 sont en outre prévus un alésage inférieur 42 débouchant vers le bas et un alésage supérieur 43 de plus grand diamètre, ici fermé par un couvercle 44. La dimension transversale horizontale de l'alésage inférieur 42 est sensiblement égale à celle de la lumière (voir la figure 8) ; cet alésage inférieur est en regard de la lumière.In block 33, a lower bore 42 is further provided. opening downwards and an upper bore 43 of larger diameter, here closed by a cover 44. The horizontal transverse dimension of the bore lower 42 is substantially equal to that of light (see Figure 8); this lower bore is facing the light.

Dans les alésages inférieur et supérieur est disposé un doigt de verrouillage adapté à coulisser verticalement. Ce doigt 45 comporte une tige 46 traversant verticalement la lumière 40 et l'alésage inférieur. Ce doigt comporte en outre une tête 47 adaptée à coulisser dans l'alésage supérieur jusque dans l'alésage 34 en sorte de venir en regard de la portée transversale 41. Dans l'exemple représenté, cette portée transversale 41 est tangente à l'avant de la lumière et l'abaissement de la tête jusque dans l'alésage 34 est rendu possible par des méplats 48 latéraux bordant la lumière.In the lower and upper bores is placed a finger locking device adapted to slide vertically. This finger 45 has a rod 46 passing vertically through the lumen 40 and the lower bore. This finger further comprises a head 47 adapted to slide in the upper bore as far as bore 34 so as to come opposite the transverse bearing 41. In the example shown, this transverse bearing 41 is tangent to the front of the lumen and the lowering of the head into the bore 34 is made possible by 48 lateral flats bordering the light.

Un ressort 49 prenant appui sur le couvercle 44 applique au doigt 45 une poussée verticale vers le bas.A spring 49 bearing on the cover 44 applies to the finger 45 a vertical push down.

La longueur de la tige 46 est telle que cette tige est en saillie vers le bas lorsque la tête vient dans l'alésage en regard de l'épaulement ; cette tête est de préférence plus haute que l'épaulement 41 grâce à quoi le doigt 45 est en toute configuration maintenu horizontalement par chacun des alésages 42 et 43.The length of the rod 46 is such that this rod is protruding downwards when the head comes into the bore opposite the shoulder; this head is preferably higher than the shoulder 41 whereby the finger 45 is in any configuration held horizontally by each of the bores 42 and 43.

Dans la configuration de la figure 7, le pêne est en configuration de verrouillage : les cadres 1 et 2 sont solidarisés l'un à l'autre. In the configuration of Figure 7, the bolt is in locking configuration: frames 1 and 2 are secured to each other.

Si un effort de traction vers la droite est appliqué au pêne par le tirant de commande 39, le pêne reste maintenu en position par appui de la tête 47 sur l'épaulement 41. Aucun déverrouillage ne peut se faire tant que le doigt est dans la configuration en saillie de la figure 7.If a pull to the right is applied to the bolt by the control rod 39, the bolt remains held in position by pressing the head 47 on the shoulder 41. No unlocking can be done as long as the finger is in the protruding configuration of FIG. 7.

Si le doigt 45 est repoussé vers le haut à l'encontre du ressort 49, par exemple par venue du cadre 1 en contact vers le sol, la tête 47 n'est plus en regard de la portée 41, de sorte que le pêne est libre de reculer en réponse à une traction du tirant.If finger 45 is pushed up against the spring 49, for example by coming from the frame 1 in contact with the ground, the head 47 is not more next to the range 41, so that the bolt is free to reverse in response to a pull of the tie rod.

Le dispositif des figures 7 à 9 assure donc un verrouillage ne pouvant en pratique être neutralisé qu'en configuration basse du cadre 1 et donc aussi du cadre 2.The device of FIGS. 7 to 9 therefore ensures locking which can in practice be neutralized only in the low configuration of frame 1 and so also from frame 2.

On notera que, dans l'exemple considéré, les longerons du cadre central 1 longent intérieurement les longerons du cadre d'ancrage 2. Comme les patins d'appui de roues 4 fixés de façon amovible aux longerons du cadre interne 1 sont en saillie latérale vers l'extérieur, on comprend que ces patins sont sensiblement dans le prolongement des longerons du cadre d'ancrage 2. De la sorte, ces longerons constituent une piste de roulement permettant la montée et la descente par roulement sur ses roues d'un véhicule automobile.It will be noted that, in the example considered, the side members of the central frame 1 internally run along the side members of the anchoring frame 2. Like the wheel support pads 4 removably attached to the side members of the internal frame 1 are projecting outward sideways, it is understood that these pads are substantially in the extension of the frame rails anchor 2. In this way, these side members constitute a running track allowing the rolling up and down on a vehicle's wheels automobile.

On peut noter que les éléments 4A et 20 qui s'engagent dans des portions tubulaires 1A-1B ou 2E du cadre sont de section carrée. Il ne s'agit là bien sûr que d'un exemple, étant précisé que n'importe quelle autre section serait envisageable. Il est toutefois préférable que cette section soit polygonale de manière à faciliter le blocage en rotation relative entre les pièces à solidariser par emmanchement.It can be noted that the elements 4A and 20 which engage in tubular portions 1A-1B or 2E of the frame are of square section. He ... not This is of course only an example, it being specified that any other section would be possible. However, it is preferable that this section be polygonal so as to facilitate locking in relative rotation between the parts to be joined by fitting.

La mise en place d'un véhicule sur le châssis de redressage qui vient d'être décrit peut se faire très rapidement selon la procédure suivante :

  • on met en place des rampes inclinées 25 faisant la transition entre le niveau des patins d'appui de roues et celui du sol. Il suffit de deux rampes 25 à l'une des extrémités du cadre d'ancrage. Ces rampes peuvent être complètement amovibles, mais peuvent en variante être fixées à demeure sur des patins d'appui de roues 4 ;
  • on amène la voiture sur le châssis de redressage en la faisant rouler sur les rampes 25 puis sur les deux premiers patins d'appui de roues, puis sur les deux longerons du cadre d'ancrage jusqu'à une position où les quatre roues sont placées sur les quatre patins d'appui de roues, lesquels auront été positionnées par rapport au cadre central, en profitant des possibilité de réglage en position, conformément à l'empattement de la voiture ; on obtient ainsi la configuration de la figure 7 ;
  • on active le dispositif de soulèvement 3 en sorte de soulever la voiture, par l'intermédiaire du cadre central 1 et des patins d'appui de roues 4 qui lui sont fixés ;
  • on fixe au cadre d'ancrage 2 resté au sol, les outils de bridage repérés 6, préalablement amenés en configuration ouverte (ces outils de bridage sont généralement au nombre de quatre) ; on obtient ainsi la configuration de la figure 8 ;
  • on laisse descendre le cadre central 1, et donc la carrosserie du véhicule, jusqu'à ce que les portions appropriées de la carrosserie viennent se loger dans les outils de bridage en configuration ouverte ; on referme ces outils de bridage en sorte de verrouiller la carrosserie sur le cadre d'ancrage 2 ;
  • on laisse se poursuivre la descente du cadre central, lequel est désormais débarrassé du poids du véhicule, jusqu'à venir en configuration de solidarisation avec le cadre d'ancrage ; on assure cette solidarisation par montage des boulons sur les pions 14 de la figure 2 (ou en variante, par les blocs 30 des figures 7 à 9) ;
  • une nouvelle activation du dispositif de soulèvement a désormais pour effet de soulever la carrosserie, par l'intermédiaire du cadre d'ancrage 2 qui, jusqu'alors, était resté au sol ; on peut alors monter des bras de redressage du type de la figure 6 dans les portions 2E, ou dans les longerons 1A et 1B du cadre 1 après avoir enlevé les modules 4.
The installation of a vehicle on the righting frame which has just been described can be done very quickly according to the following procedure:
  • inclined ramps 25 are put in place making the transition between the level of the wheel support pads and that of the ground. Just two ramps 25 at one end of the anchoring frame. These ramps can be completely removable, but can alternatively be fixed permanently on the wheel support pads 4;
  • the car is brought to the righting frame by rolling it on the ramps 25 then on the first two wheel support pads, then on the two side members of the anchoring frame to a position where the four wheels are placed on the four wheel support pads, which will have been positioned relative to the central frame, taking advantage of the possibility of adjustment in position, in accordance with the wheelbase of the car; the configuration of FIG. 7 is thus obtained;
  • the lifting device 3 is activated so as to raise the car, by means of the central frame 1 and the wheel bearing pads 4 which are fixed to it;
  • is fixed to the anchoring frame 2 remained on the ground, the clamping tools identified 6, previously brought into the open configuration (these clamping tools are generally four in number); the configuration of FIG. 8 is thus obtained;
  • the central frame 1, and therefore the vehicle body, is allowed to descend, until the appropriate portions of the body are housed in the clamping tools in the open configuration; these clamping tools are closed so as to lock the bodywork on the anchoring frame 2;
  • the lowering of the central frame is continued, which is now freed from the weight of the vehicle, until it comes to the configuration of attachment to the anchoring frame; this is ensured by mounting the bolts on the pins 14 of Figure 2 (or alternatively, by the blocks 30 of Figures 7 to 9);
  • a new activation of the lifting device now has the effect of lifting the body, by means of the anchoring frame 2 which, until then, had remained on the ground; it is then possible to mount straightening arms of the type of FIG. 6 in the portions 2E, or in the longitudinal members 1A and 1B of the frame 1 after removing the modules 4.

On appréciera ainsi que l'invention prévoit l'utilisation de deux cadres qui peuvent être rendus solidaires ou non, selon la manoeuvre à effectuer, et qui, de par leurs dimensions respectives, se combinent pour réaliser les fonctions de levage par les roues et de bridage par les lèvres de soudure de bas de caisse.It will thus be appreciated that the invention provides for the use of two frames which can be made integral or not, depending on the maneuver to which, due to their respective dimensions, combine to carry out the functions of lifting by the wheels and clamping by the lips of underbody welding.

Le fait de travailler avec deux cadres permet de dimensionner plus légèrement chacun d'entre eux, de telle sorte que ce soit l'ensemble des deux cadres qui présente la résistance aux efforts envisageables lors des opérations de redressage proprement dit.Working with two frames allows you to size more lightly each of them, so that this is the set of two frames which have resistance to the forces that can be envisaged during straightening operations proper.

Un châssis de redressage du type qui vient d'être décrit est destiné à être utilisé en réparation de carrosseries pour les fonctions de diagnostics et de mesures, de réparations légères, et de réparations lourdes ou de restructuration de caisses.A straightening frame of the type which has just been described is intended for use in bodywork repair for the functions of diagnostics and measurements, light repairs, and heavy repairs or case restructuring.

On peut analyser le châssis de redressage qui vient d'être décrit comme étant formé d'une table élévatrice dont la partie supérieure peut être fixée, ou non, à un cadre d'ancrage. ll en découle que, en cas de besoin, un mode dégradé d'utilisation du châssis de redressage consiste à laisser le cadre d'ancrage au sol et d'utiliser le cadre central, avec le dispositif de soulèvement, comme une simple table élévatrice. ll apparaít ainsi que le même équipement permet soit les opérations classiques d'une table élévatrice classique, soit l'application d'opérations de redressage.We can analyze the straightening frame that has just been described as being formed by a lifting table, the upper part of which can or not be fixed to an anchoring frame. It follows that, if necessary, a degraded mode of use of the straightening frame consists in leaving the anchor frame to the ground and use the central frame, with the device lifting, like a simple lifting table. lt appears as well as the same equipment allows either the conventional operations of a lifting table classic, that is, the application of straightening operations.

Les figures 14 à 20 représentent un second châssis de redressage 100 qui correspond à un mode préféré de réalisation de l'invention. Sa structure générale est très semblable à celle du premier mode de réalisation, et ses éléments constitutifs qui correspondent à ceux de ce premier châssis sont désignés par des numéros de référence qui se déduisent de ceux des figures 1 à 13 par addition du nombre 100.Figures 14 to 20 show a second chassis of straightening 100 which corresponds to a preferred embodiment of the invention. Its general structure is very similar to that of the first mode of realization, and its constituent elements which correspond to those of this first chassis are designated by reference numbers which are deduced from those Figures 1 to 13 by adding the number 100.

Ce châssis de redressage 100 comporte ainsi un cadre central 101, un cadre d'ancrage 102, un dispositif de soulèvement 103 et quatre patins d'appui de roues 104. This straightening frame 100 thus comprises a central frame 101, an anchoring frame 102, a lifting device 103 and four pads wheel support 104.

Le cadre d'ancrage 102, avec ses longerons 102A, 102B, 102C et 102D (avantageusement formés de deux tubes séparés par une fente), ne se distingue guère du cadre 2 de la figure 2 que par la présence de portions tubulaires creuses longitudinales 102F en plus des portions tubulaires transversales creuses 102E. Les positions de montage des outils de traction en sont augmentées.The anchoring frame 102, with its longitudinal members 102A, 102B, 102C and 102D (advantageously formed of two tubes separated by a slot), differs little from frame 2 of figure 2 only by the presence of portions 102F longitudinal hollow tubulars in addition to tubular portions hollow cross sections 102E. The mounting positions of the traction tools in are increased.

D'autre part, c'est ce cadre d'ancrage 102 qui porte des blocs de verrouillage 130 destinés à coopérer avec des pions 114 ménagés sur le cadre central 101.On the other hand, it is this anchoring frame 102 which carries blocks locking 130 intended to cooperate with pins 114 formed on the central frame 101.

Les pions 114 sont, à la figure 16, situés sensiblement aux coins du rectangle formé par les longerons 101A, 101B, 101C et 101D. Seul l'un de ces pions 114 est visible sur cette figure, à la faveur d'un arrachement partiel.The pins 114 are, in FIG. 16, located substantially at the corners of the rectangle formed by the side members 101A, 101B, 101C and 101D. Alone one of these pawns 114 is visible in this figure, thanks to a tearing partial.

Le dispositif de soulèvement 103 est avantageusement un dispositif autonome, comportant un châssis inférieur 103A, un châssis supérieur 103B et des bras pivotants 103C. Ce dispositif est autonome, en ce sens qu'il comporte un châssis supérieur (il peut donc s'agir d'une table élévatrice quelconque utilisable indépendamment du cadre central ou du cadre d'ancrage) et en ce que c'est à ce châssis supérieur (et non aux bras pivotants eux-mêmes) que le cadre central 101 est fixé. Ce cadre central comporte à cet effet deux traverses 101E adaptées à être fixées, par exemple par deux fois quatre boulons, aux deux bords transversaux du châssis supérieur 103B du dispositif de soulèvement.The lifting device 103 is advantageously a autonomous device, comprising a lower chassis 103A, a chassis upper 103B and pivoting arms 103C. This device is autonomous, in that meaning that it has an upper frame (it can therefore be a table any lift usable independently of the central frame or the frame anchor) and in that it is this upper frame (and not the swivel arms themselves) that the central frame 101 is attached. This central framework includes effect two cross members 101E adapted to be fixed, for example twice four bolts, at the two transverse edges of the upper chassis 103B of the lifting device.

Les patins d'appui de roues 104 sont avantageusement regroupés par paires au sein de deux éléments de support de roues 160 dont l'un est représenté à la figure 18.The wheel bearing pads 104 are advantageously grouped in pairs within two wheel support elements 160 of which one is shown in Figure 18.

Cet élément de support de roues 160 peut être analysé comme étant formé de deux modules élémentaires du type de la figure 4, formés chacun d'une barre 104A et d'un patin 104 (situé soit à droite soit à gauche), et d'une traverse de liaison 104B solidarisant ces deux modules. ll en résulte une meilleure rigidité et une plus grande facilité de réglage.This wheel support element 160 can be analyzed as being formed of two elementary modules of the type of FIG. 4, formed each of a bar 104A and a shoe 104 (located either on the right or on the left), and a cross member 104B connecting these two modules. This results in a better rigidity and greater ease of adjustment.

Comme dans le premier mode de réalisation, les barres 104A sont destinées à coulisser, de préférence au moyen de roulements non représentés, dans des portions tubulaires creuses des longerons du cadre central ; la longueur de la traverse de liaison 104B est donc égale à la distance séparant ces portions tubulaires creuses.As in the first embodiment, the bars 104A are intended to slide, preferably by means of bearings not shown, in hollow tubular portions of the frame rails central; the length of the connecting crosspiece 104B is therefore equal to the distance separating these hollow tubular portions.

Cet élément 160 est adapté à être bloqué sélectivement en l'une de plusieurs positions possibles vis-à-vis du cadre central en sorte de pouvoir s'adapter à différents types d'empattements de voitures.This element 160 is adapted to be selectively blocked in one of several possible positions vis-à-vis the central frame so as to ability to adapt to different types of car wheelbases.

A cet effet, les portions tubulaires creuses des longerons du cadre central sont munies de plusieurs orifices tandis que les barres 104A comportent des pions transversaux rétractables 161 commandés, par l'intermédiaire d'une tringlerie non représentée, au moyen d'un levier ou poignée 162 accessible à l'opérateur, débouchant par exemple à l'intérieur des poignées de préhension 110, ce qui garantit une certaine protection de ces leviers ou poignées 162 vis-à-vis notamment d'éventuels chocs.To this end, the hollow tubular portions of the side members of the central frame are provided with several holes while the bars 104A have retractable transverse pins 161 controlled, by through a linkage not shown, by means of a lever or handle 162 accessible to the operator, opening for example inside the grips 110, which guarantees a certain protection of these levers or handles 162 vis-à-vis in particular possible shocks.

Les figures 19 et 20 représentent la combinaison d'un bloc de verrouillage 130 du cadre 102 de la figure 15 et d'un pion 114 du cadre 101 de la figure 16.Figures 19 and 20 show the combination of a block of locking 130 of the frame 102 of FIG. 15 and of a pin 114 of the frame 101 of Figure 16.

Le principe est très voisin de celui représenté aux figures 7 à 9 avec une lame horizontale 131 formant pêne mobile horizontalement, ayant une configuration en saillie dans laquelle elle pénètre dans un logement ou entaille 132 ménagé dans le pion 114.The principle is very similar to that shown in Figures 7 to 9 with a horizontal blade 131 forming a bolt movable horizontally, having a surface configuration in which it enters a housing or notch 132 made in pin 114.

Le bloc 130 comporte un corps de verrou 133 dans lequel est ménagé un alésage vertical 134 adapté à recevoir le pion 114, et un logement horizontal 135 dans lequel la lame 131 peut coulisser.The block 130 comprises a lock body 133 in which is provided a vertical bore 134 adapted to receive the pin 114, and a housing horizontal 135 in which the blade 131 can slide.

Cette lame 131 est poussée vers l'alésage par des ressorts latéraux 136 tandis qu'un vérin 137, par exemple pneumatique, est prévu pour manoeuvrer cette lame d'avant en arrière (à l'encontre des ressorts) et réciproquement. La lame est à cet effet attelée au piston 138 du vérin par des tiges latérales 139 traversant les ressorts.This blade 131 is pushed towards the bore by springs side 136 while a cylinder 137, for example pneumatic, is provided for maneuver this blade back and forth (against the springs) and reciprocally. The blade is for this purpose coupled to the piston 138 of the jack by lateral rods 139 passing through the springs.

Dans le bloc 133 est en outre prévu un orifice vertical inférieur 142 et un logement supérieur 143 de plus grande section, adaptés à recevoir un doigt de verrouillage 145 comportant une tige de guidage coulissant dans l'orifice 142 reliée à une tête 147 adaptée à venir, en une configuration basse du doigt 145, derrière la lame 131 lorsque celle-ci est en saillie. Il y a donc, comme aux figures 7 à 9, un verrouillage en configuration d'assemblage. Ce doigt est maintenu en cette configuration basse par un ressort 148.In block 133 is further provided a lower vertical orifice 142 and an upper housing 143 of larger section, adapted to receive a locking finger 145 comprising a guide rod sliding in the orifice 142 connected to a head 147 adapted to come, in a low configuration finger 145, behind the blade 131 when the latter is projecting. So there is, as in FIGS. 7 to 9, a locking in assembly configuration. This finger is held in this low configuration by a spring 148.

Le doigt de verrouillage comporte, dans cette configuration basse, une portion en saillie vers le bas, ici un appui élastique 149. Lorsque le cadre 102 vient en position basse, cet appui vient en butée, de façon amortie grâce à son caractère élastique, contre une surface d'appui non représentée (comme aux figures 7 à 9) située au niveau du sol, ce qui provoque la remontée du doigt jusqu'en une configuration haute dans laquelle la tête 147 est au-dessus de la lame qui peut donc reculer : une désolidarisation entre le bloc 130 et le pion 114 est alors possible, mais uniquement parce que les cadres sont au niveau du sol.The locking finger has, in this configuration lower, a portion projecting downwards, here an elastic support 149. When the frame 102 comes in the low position, this support comes to a stop, in a damped manner thanks to its elastic nature, against a support surface not shown (as in Figures 7 to 9) located at ground level, which causes the raising the finger to a high configuration in which the head 147 is above the blade which can therefore move back: a separation between the block 130 and pawn 114 is then possible, but only because the frames are at ground level.

Une telle coopération 130 + 114 est particulièrement fiable, et l'usage de vérins conduit à un grand confort d'utilisation.Such 130 + 114 cooperation is particularly reliable, and the use of cylinders leads to great comfort in use.

Il va de soi que la description qui précède n'a été proposée qu'à titre d'exemple non limitatif et que de nombreuses variantes peuvent être proposées par l'homme de l'art sans sortir du cadre de l'invention telle que revendiquée.It goes without saying that the above description has not been proposed that by way of nonlimiting example and that many variants can be proposed by those skilled in the art without departing from the scope of the invention as claimed.

Claims (16)

  1. Frame for straightening automobile bodyshells comprising a horizontal anchor frame (2, 102) having two longitudinal members (2A, 102A, 2B, 102B) adapted to be place under the lateral edges of a bodyshell to be straightened, clamping members (6) adapted to be fixed removably to said anchor frame, a lifting device (3, 103) adapted to displace the frame vertically, this frame also including a centre frame (1, 101) fixed to said lifting device (3, 103), situated between the longitudinal members of the anchor frame, said centre frame (1, 101) being free to be lifted relative to and above the anchor frame, and temporary coupling means (13, 14, 30, 114, 130) for selective fastening of the centre frame to the anchor frame, characterized in that said centre frame includes wheel supports (4, 104) aligned with said longitudinal members, and two hollow longitudinal members in which are slidably inserted bars (4A, 104A) attached to the wheel supports (4, 104).
  2. The straightener frame according to claim 1, characterized in that at least two wheel supports (104) are joined by a connecting crossmember (104B).
  3. The straightener frame according to claim 1 or 2, characterized in that said bars are removable to enable the sliding engagement of a support bar (20) of a straightening tool.
  4. The straightener frame according to any one of claims 1 to 3, characterized in that the bars and the longitudinal members incorporate bores (11, 12) adapted to be aligned with each other in various relative configurations of the wheel supports relative to the centre frame and to receive conjointly temporary coupling pins.
  5. The straightener frame according to any one of claims 1 to 3, characterized in that at least one of the bars (104A) includes at least one retractable transverse stud (161) coupled to an exterior operating handle (162).
  6. The straightener frame according to claim 5, characterized in that said exterior handle (162) is inside a holding handle (110) with which said wheel support or its bar is provided.
  7. The straightener frame according to any one of claims 1 to 6, characterized in that the lifting device (3) moves essentially vertically.
  8. The straightener frame according to claim 7, characterized in that the lifting device (3) comprises two pairs of lifting arms articulated together in their middle portions.
  9. The straightener frame according to any one of claims 1, 7 and 8, characterized in that said lifting device includes a top frame (103B) to which the centre frame (101) is fixed.
  10. The straightener frame according to any one of claims 1 to 9, characterized in that one of the frames includes centring studs (14) adapted to enter vertically lugs (13) on the other frame.
  11. The straightener frame according to claim 10, characterized in that the studs have a screwthreaded end adapted to cooperate with nuts, said studs, said lugs and said nuts constituting means for temporary coupling of the two frames.
  12. The straightener frame according to any one of claims 1 to 11, characterized in that the temporary coupling means include a horizontally mobile bolt (31, 131) having a rear bearing surface (41) adapted, in a bolt projecting configuration, to abut against a vertical locking finger in a lowered configuration, said bolt being free to slide rearwardly when said finger is in a raised configuration.
  13. The straightener frame according to claim 12, characterized in that said bolt is part of a locking block (130) fastened to one of the frames which includes a vertical hole adapted to receive a vertical stud (114) fastened to the other frame, said bolt being adapted to project into said hole.
  14. The straightener frame according to claim 13, characterized in that said bolt is a horizontal flat bolt coupled to the piston of a cylinder.
  15. The straightener frame according to any one of claims 12 to 14, characterized in that the bolt is spring-loaded towards its projecting configuration by springs (38, 136).
  16. The straightener frame according to any one of claims 1 to 15, characterized in that the longitudinal members of the anchor frame have hollow tubular transverse portions (2E) adapted to receive, for temporary fastening therein, a support bar (20) of a straightening tool.
EP19960401921 1995-09-28 1996-09-09 Straightening bench for vehicle bodies Expired - Lifetime EP0765699B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9511383A FR2739309B1 (en) 1995-09-28 1995-09-28 STRAIGHTENING CHASSIS FOR AUTOMOTIVE BODYWORK
FR9511383 1996-08-21
FR9610338A FR2752538B1 (en) 1996-08-21 1996-08-21 STRAIGHTENING CHASSIS FOR AUTOMOTIVE BODYWORK
FR9610338 1996-08-21

Publications (2)

Publication Number Publication Date
EP0765699A1 EP0765699A1 (en) 1997-04-02
EP0765699B1 true EP0765699B1 (en) 2001-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960401921 Expired - Lifetime EP0765699B1 (en) 1995-09-28 1996-09-09 Straightening bench for vehicle bodies

Country Status (3)

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EP (1) EP0765699B1 (en)
JP (1) JPH09118206A (en)
DE (1) DE69614473T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2130624A1 (en) 2008-06-06 2009-12-09 Blackhawk SA Straightening bench for straightening containers

Families Citing this family (4)

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FR2783183B1 (en) * 1998-09-11 2001-01-19 Blackhawk Sa STRAIGHTENING BENCH FOR AUTOMOTIVE BODIES HAVING HORIZONTAL PERIPHERAL DRILLINGS
FI127953B (en) * 2016-09-12 2019-05-31 Venaelaeinen Olavi Straightening device for vehicles
CN106734375B (en) * 2016-12-30 2020-06-02 上汽通用五菱汽车股份有限公司 Backup pad orthotic devices
CN110817739A (en) * 2018-08-07 2020-02-21 营口冠华良易汽保设备有限公司 Non-column movable lifter

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US4055061A (en) * 1976-04-26 1977-10-25 Applied Power, Inc. Apparatus for reforming and straightening vehicles
DE2628722A1 (en) * 1976-06-25 1977-12-29 Teuvo Olavi Venaelaeinen Vehicle chassis maintenance lift - secures to table by raising or lowering latter also actuating retracting plates under wheels
US4238951A (en) * 1978-10-02 1980-12-16 Grainger Bros., Inc. Portable automobile straightening device
US4404838A (en) * 1981-07-23 1983-09-20 Hare Charles E System for straightening bent automobile bodies
FR2581634A1 (en) * 1985-05-07 1986-11-14 Celette Sa Lifting truck, particularly for handling motor vehicles and vehicle-straightening plates
FI85232C (en) * 1986-05-28 1992-03-25 Autorobot Finland FOERFARANDE VID JUSTERINGEN AV EN BILKAROSS OCH ETT JUSTERANORDNINGSARRANGEMANG.
FR2624460B2 (en) * 1987-09-10 1991-04-12 Celette Sa INSTALLATION FOR REPAIR AND INSPECTION OF ACCIDENTAL VEHICLE BODIES
JPH02102856A (en) * 1988-09-30 1990-04-16 Les Fabrication Drolic Inc Automatic car body stretcher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2130624A1 (en) 2008-06-06 2009-12-09 Blackhawk SA Straightening bench for straightening containers

Also Published As

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DE69614473T2 (en) 2002-05-08
EP0765699A1 (en) 1997-04-02
DE69614473D1 (en) 2001-09-20
JPH09118206A (en) 1997-05-06

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