Lifting table for repairing and / or maintaining and / or monitoring a wheeled vehicle

Abstract

A lifting table (1) comprising a frame, wheels, two parallel coplanar platforms (2), two lifting devices (5) each associated with a platform (2) for raising and lowering said platforms (2), and a control unit (6), said control unit (6) being configured to control the synchronous operation of the lifting devices (5), each platform (2) extending longitudinally between two edges, respectively called the front (7) and rear (8) of said platform (2), and the lifting table (1) comprising, for each platform (2), two extensions (9) of the platform (2) that can be pivotally coupled, one to the front edge (7), the other to the rear edge (8) of the platform (2). Each platform (2) is formed of platform elements (10, 11, 12) mounted by sliding interlocking to form a telescopic platform (2) adjustable in length.

Description

[0001] The present invention relates to a lifting table for the repair and / or maintenance and / or control of rolling stock.

[0002] It relates in particular to a lifting table for the repair and / or maintenance and / or control of rolling stock comprising a chassis and wheels for moving the chassis on the ground, said table comprising two parallel coplanar platforms each having a top face and a bottom face, two lifting devices each associated with a platform for moving said platforms up and down and a control unit, said control unit being configured to control synchronous operation of the lifting devices, each platform extending longitudinally between two edges respectively called front and rear of said platform and the lifting table comprising, for each platform, two pivotable extensions of the platform, one to the front edge, the other to the rear edge of the platform.

[0003] Inspection tables like the one described above exist and are currently used exclusively for four-wheeled vehicles. Today, legislation mandates technical inspections for both light two- and three-wheeled vehicles and four-wheeled vehicles. Companies specializing in technical inspections face the challenge of equipping themselves to handle a wide variety of vehicle types, particularly two-, three-, and four-wheeled vehicles. These companies are seeking versatile equipment.

[0004] One aim of the invention is to provide a lifting table whose design allows the lifting of a large number of types of machinery without compromising the simplicity of the table.

[0005] To this end, the invention relates to a lifting table for the repair and / or maintenance and / or inspection of rolling stock comprising a chassis and wheels for moving the chassis on the ground, said table comprising two parallel coplanar platforms, each having a top face and a bottom face, two lifting devices each associated with a platform for raising and lowering said platforms, and a control unit, said control unit being configured to control synchronous operation of the lifting devices, each platform extending longitudinally between two edges respectively called front and rear of said platform, and the lifting table comprising, for each platform, two pivotable extensions of the platform, one to the front edge, the other to the rear edge of the platform.characterized in that each tray is formed of tray elements mounted with a sliding interlocking mechanism to form a so-called telescopic tray adjustable in length.

[0006] The table is a multi-purpose platform designed to lift rolling equipment by lifting it from under the chassis or wheels. This allows for the lifting of vehicles with two to four wheels. The presence of extendable platforms, combined with extensions to these platforms, enables adaptation to a wide range of rolling equipment. This design also allows the extensions to function as access ramps to the platform, in addition to their extension function.

[0007] According to one embodiment of the invention, the tray elements of a tray comprise a tray element called central and two tray elements called respectively front and rear, each capable of extending at least partially on either side of the central tray element and each coupled by sliding interlocking to the central tray element.

[0008] According to one embodiment of the invention, the central tabletop element is stationary, and the front and rear tabletop elements are mounted independently for movement. Because the front and rear tabletop elements are mounted independently for movement, a large number of tabletop configurations are possible.

[0009] According to one embodiment of the invention, each front or rear tray element, coupled by sliding fit to the central tray element, and mounted movable relative to the central tray element between two extreme positions corresponding, one, to a position away from said central tray element, the other, to a position close to said central tray element in which it is arranged to overlap the central tray element, is equipped with at least one locking member in each of said extreme positions.

[0010] According to one embodiment of the invention, one or more locking members of said front or rear tabletop element in one of its extreme positions is a pivoting hook, and said locking members of the front or rear tabletop element are configured to cooperate with a common complementary locking member carried by the central tabletop element. Each pivoting hook is mounted to pivot about an axis perpendicular to the longitudinal axis of the table.

[0011] According to one embodiment of the invention, the pivoting hook forming the locking member of the front or rear tray element in one of the extreme positions forms the locking member of the front or rear tray element in the other of the extreme positions.

[0012] According to one embodiment of the invention, the common complementary locking member carried by the central tray element is a pin extending in projection from a longitudinal edge of said central tray element.

[0013] According to one embodiment of the invention, each extension is mounted to pivotally move between a deployed position, in which it forms an angle of approximately 180° with the top face of the tabletop, and a folded position, in which it forms an angle of between 90° and 175° with the underside face of the tabletop, and said table includes, for each extension, a unlockable locking system for said extension at least in the deployed position.

[0014] According to one embodiment of the invention, the unlockable locking system of at least one of the extensions comprises two parallel support legs mounted at one of their pivoting ends on the platform around a transverse axis of said platform, said support legs being connected at their opposite ends by a connecting bar capable of coming in the locked configuration of said system in support against a stop provided on a face called the underside of the extension.

[0015] According to one embodiment of the invention, said table comprises two access ramps, each of which can be pivotally coupled to one of the extensions, each ramp extending, in the state coupled to an extension, along an edge of the extension opposite the edge of the extension adjoining one of the edges of the tabletop.

[0016] According to one embodiment of the invention, each access ramp is equipped with at least one anti-rollover stop extending at least partially in projection from the receiving surface of a rolling vehicle formed by the platform / extensions / ramps assembly in at least one of the angular positions capable of being taken by the ramp to form an obstacle to the movement of the vehicle on said surface.

[0017] According to one embodiment of the invention, the platform lifting device comprises a base, one or more pairs of parallel scissors carried by said base and extending between the base and the central platform element and at least one actuator, each scissor comprises two X-shaped arms coupled pivotally about an axis orthogonal to the plane of the X, one of the arms of one of the X and the opposite arm of the other of the X of the or at least one of the pairs of scissors are connected by a spacer and one of the ends of the scissor arms of the pair of scissors coupled to the central platform element is mounted to slide along the central platform element in a direction parallel to the support plane formed by said platform.

[0018] According to one embodiment of the invention, the table includes at least one wheel vise that can be removably coupled to the front or rear tabletop element respectively.

[0019] According to one embodiment of the invention, the parallel plates are separated from each other by a distance of at least 500 mm and the distance between the most distant longitudinal edges, called external edges, of the plates is at most 2500 mm. Brève description des dessins

[0020] The invention will be better understood upon reading the following description of exemplary embodiments, with reference to the attached drawings in which: [ Fig. 1 ] represents a perspective view of a lifting table according to the invention in the shortest platform length position and with the extensions not locked, the table being in the lowest platform position; Fig. 2 ] represents a perspective view of a lifting table according to the invention in the shortest platform length position and with the extensions locked in the deployed position, the table being in the lowest platform position; [ Fig. 3 ] represents a perspective view of a lifting table according to the invention in an intermediate platform length position and with the extensions unlocked using two wheel clamps, the table being in the lower platform position and supporting a two-wheeled vehicle; Fig. 4 ] represents a perspective view of a lifting table according to the invention in the longest position of the platform and with the extensions not locked, the table being in the lowest position of the platform; Fig. 5 ] represents a perspective view of a lifting table according to the invention in the longest position of the platform and with the extensions locked in the deployed position, the table equipped with ramps being in the lowest position of the platform; Fig. 6 ] represents a perspective view of a lifting table according to the invention in the longest position of the platform and with the extensions locked in the deployed position, the table equipped with ramps and an added element being in the lowest position of the platform and supporting a three-wheeled vehicle; Fig. 7 ] represents a perspective view of a lifting table according to the invention in the longest position of the platform and with the extensions locked in the deployed position, the table equipped with ramps and an added element being in the raised position of the platform; Fig. 8 ] represents a perspective view of a lifting table according to the invention in the intermediate platform length position and unlocked from the extensions, the table being in the raised platform position and supporting a four-wheeled vehicle by means of an under-chassis grip; Fig. 9 ] represents a perspective view of a lifting table according to the invention in the shortest platform length position and with the extensions locked in the deployed position, the table being in the raised platform position; [ Fig. 10 ] represents a cross-sectional view of the platform / extensions / ramps assembly of a lifting table according to the invention; [ Fig. 11 ] shows front views of the platform / extension assembly of a lifting table according to the invention during the longitudinal extension of the platform, with a detailed view of a locking device for a platform element in its extreme position; Fig. 12 ] represents partial perspective views of one end of the table to illustrate the transition from an extension of the folded position to the deployed position in which it is locked; Fig. 13 ] represents partial perspective views of one end of the table to illustrate the attachment of a ramp and the pivoting movement of said ramp; Fig. 14 ] represents an exploded view of a platform / extensions / ramp assembly with two detail views; Fig. 15 ] represents two front views of the entire platform / extensions of a lifting table according to the invention.

[0021] As mentioned above, the invention relates to a lifting table 1 of the type shown in the figure 1 This table 1 allows for the repair and / or maintenance and / or inspection of 30 rolling vehicles, which can be three-wheeled or four-wheeled vehicles, as illustrated in the diagrams. figures 6 And 8 and on two wheels, as illustrated in the figure 3 . Such a machine 30 comprises a chassis 31 and wheels 32.

[0022] This table 1 comprises two parallel coplanar platforms 2. These platforms 2 are separated from each other by a distance of at least 500 mm to allow an operator to pass between them. The distance between the outermost longitudinal edges of the platforms is at most 2500 mm to minimize its footprint. Each platform 2 has a top face 3 facing upwards in its operating configuration and a bottom face 4 facing downwards in its operating configuration. The table 1 includes, for each platform 2, a platform 2 lifting device 5 extending along the bottom face 4 of the platform 2. The platform 2 has a front edge 7 and a rear edge 8 and extends longitudinally from the front edge 7 towards the rear edge 8.Table 1 also includes a control unit 6, this control unit 6 being configured to control synchronous operation of the lifting devices 5 for synchronous movement of the platforms 2 between a low position as illustrated in the . figures 1 à 6 and a high position as illustrated in the figures 7 à 9 .

[0023] The control unit takes the form of an electronic and / or computer system that includes, for example, a microprocessor and working memory. In a particular configuration, the control unit can be a programmable logic controller (PLC). In other words, the functions and steps described can be implemented as a computer program or via hardware components (e.g., programmable gate arrays).In particular, the functions and steps performed by the control unit or its modules can be carried out by instruction sets or computer modules implemented in a processor or controller, or by dedicated electronic components, or by components such as field-programmable gate arrays (FPGAs), or application-specific integrated circuits (ASICs). It is also possible to combine computer and electronic components.When it is specified that the unit or means or modules of said unit are configured to perform a given operation, this means that the unit includes computer instructions and the corresponding means of execution which enable said operation to be performed and / or that the unit includes corresponding electronic components.

[0024] As illustrated by the passage from the figure 1 to the figure 4 and the views of figures 10 , 11 And 14 , each tray 2 is formed of elements 10, 11, 12 of the tray mounted by sliding interlocking to form a tray 2 called telescopic adjustable in length.

[0025] The platform elements 10, 11, 12 of a platform 2 comprise a central platform element 10 and platform elements respectively called front 11 and rear 12 capable of extending at least partially, on either side of the central platform element 10 and each coupled by sliding interlocking to the central platform element 10.

[0026] Ideally, the central platform element 10 is stationary and the front platform elements 11 and rear platform elements 12 are mounted independently when moving.

[0027] Thus, the platform 2 is capable of presenting several configurations, namely a configuration in which the front platform elements 11 and rear platform elements 12 are brought together until they touch, and the central platform element 10 is covered by these front platform elements 11 and rear platform elements 12, as illustrated in the figure 1 or in the view from the top of the figure 11 , a configuration in which one of the tray elements is positioned close to the central tray element 10 and the other tray element is positioned away from the central tray element 10, as illustrated for example in figures 3 And 8 , and a configuration in which the front tray elements 11 and rear tray elements 12 are positioned away from the central tray element 10, as illustrated in figures 4 And 5 , For example.

[0028] The length of each tray 2 can thus vary within a wide range, for example, between 1200 millimeters and 3000 mm. In the examples shown, each front or rear tray element can overlap by a maximum of half the length of the central tray element. Naturally, the dimensions of these overlap areas can vary.

[0029] For operational safety, each front platter element 11, or respectively rear platter element 12, coupled by sliding fit to the central platter element 10 and mounted to move relative to the central platter element 10 between two extreme positions, one corresponding to a position away from said central platter element 10, the other to a position closer to said central platter element 10 in which it is arranged with at least partial overlap of the central platter element 10, is equipped with at least one locking device in each of the extreme positions. These locking devices, which are arranged along one or both longitudinal edges of each front platter element, are shown for each front or rear platter element in Figures 131 and / or 132.

[0030] In the example of the figure 14 , the or each locking member 131 of said front platter element 11, or respectively rear 12, in one of the extreme positions, is a pivoting hook open towards the front edge 7 of the platter 2. The or each locking member 132 of said front platter element, or respectively rear 12, in the other of the extreme positions, is a pivoting hook open towards the rear edge of the platter 2. In this example, for the same platter element, the pivoting hooks are distinct according to the locked extreme position.

[0031] In the example of the figure 15 A single pivoting hook allows the platter element to be locked in either extreme position. Thus, the pivoting hook that forms the locking element 132 of the front platter element 11 in one of the extreme positions of said front platter element also forms the locking element 132 of the front platter element 11 in the other extreme position. The same applies to the locking element 132 of the rear platter element 12. In this case, each pivoting hook has two notches.

[0032] The locking members 131 and / or 132 of the front tray element 11, or respectively rear 12, are configured to cooperate with a common complementary locking member 14 carried by the central tray element 10. The common complementary locking member 14 carried by the central tray element 10 is a pin extending projecting from a longitudinal edge of said central tray element 10.

[0033] The swiveling hooks fitted to the front tray element 11 and the rear tray element 12 are most particularly visible at figures 11 , 14 And 15 .

[0034] The central board element 10 includes, along each of its longitudinal edges, for each front or rear board element, at least one peg extending beyond the board 2. This peg is adapted to slide within a slot fitted to the longitudinal edge of the front or rear board element. Each front or rear board element may include, at each end of the slot, a pivoting hook mounted to pivot about an axis perpendicular to the longitudinal axis of the board 2.

[0035] The hooks fitted to the longitudinal edge of a tray element are open in opposite directions. Thus, one of the hooks, corresponding to the locking member 131, to figures 11 And 14, and open towards the front edge 7 of the tray 2, is active for the front tray element 11 when it is associated with the front tray element 11, in a position close to the front tray element 11 of the central tray element 10, to prevent the front tray element 11 from moving away from the central tray element 10. Similarly, it is active for the rear tray element 12 when it is associated with the rear tray element 12, in a position away from the rear tray element of the central tray element 10, to prevent the rear tray element 12 from moving closer to the central tray element 10.

[0036] Similarly, one of the hooks, depicted in 132 at the figure 14 , and open towards the rear edge 8 of the tray 2 is active for the front tray element 11, in the position away from the front tray element 11 of the middle tray element 10, to prevent the front tray element 11 from approaching the middle tray element 10, and for the rear tray element 12, in the position away from the rear tray element 12 of the middle tray element 10, to prevent the rear tray element 12 from approaching the middle tray element 10.

[0037] Alternatively, and as illustrated in the figure 15 Each front or rear platform element may include, along at least one of its longitudinal edges, a single pivoting hook mounted to pivot about an axis perpendicular to the longitudinal axis of the platform 2. This pivoting hook, corresponding to the locking member 132 in the figure 15 The pivot hook has two notches that can alternately cooperate with the protruding pin of the central playfield element 10, depending on whether the front or rear playfield element is positioned close to or far from the pivoting hook. Thus, the pivoting hook is active for the front playfield element by one of its notches when the front playfield element 11 is close to the central playfield element 10, preventing the front playfield element 11 from moving away from the central playfield element 10. The other notch, when the front playfield element is far from the central playfield element, prevents the front playfield element 11 from moving closer to the central playfield element. The pivoting hook operates similarly on a longitudinal edge of the rear playfield element.

[0038] Obviously, the term "front tray element" refers to the tray element that adjoins the front edge of the tray, and the term "rear tray element" refers to the tray element that adjoins the rear edge of the tray.

[0039] The locking mechanism(s) of a single tray element can be selectively activated. In the active state, one locking mechanism engages with the complementary locking mechanism carried by the central tray element.

[0040] As mentioned above, table 1 includes, for each platform 2, a lifting device 5 configured to allow the platform 2 to move from a low position close to the ground to a high position away from the ground. The lifting device 5 for a platform 2 includes, as illustrated for example in the figure 8 , a base 21, one or more pairs of parallel scissors 22 carried by said base 21 and extending between the base 21 and the central plate element 10 and at least one actuator 23.

[0041] The actuators 23 are here formed by hydraulic cylinders. The actuators 23 of one of the lifting devices 5 are in fluidic communication with the actuators of the other lifting devices 5 to allow synchronous operation.

[0042] In the example shown, a lifting device 5 comprises two parallel pairs of scissors 22. One end of each scissor arm of the first pair of scissors, referred to as the lower pair, is coupled to one end of an arm of a scissor arm of the second pair of scissors, referred to as the upper pair. The end of each scissor arm of the first pair of scissors opposite the end coupled to an arm of a scissor arm of the second pair of scissors is pivotally coupled, and, for the end of one of the arms, also slidably coupled, to the base 21. The end of each scissor arm of the second pair of scissors opposite the end coupled to an arm of a scissor arm of the first pair of scissors is pivotally coupled, and, for the end of one of the arms, pivotally and slidably coupled to the platform 2, in particular to the central platform element 10 of the platform 2.

[0043] The scissor arms are connected by cross members for synchronous movement and reinforcement. Furthermore, one of the arms 221 of one of the X-shaped sections of the second, so-called upper, scissor pair and the opposite arm 221 of the other X-shaped section of the second scissor pair are connected by a spacer 24. The lifting device 5 also includes at least one connecting rod, generally a pair of parallel connecting rods. The actuator(s) 23 extend between the base 21 and the connecting rod(s). The connecting rod(s) is connected at one end to the actuator 23 or to one of the actuators 23 by a pivot joint with an axis parallel to the pivot axis of the X-shaped arms. The connecting rod(s) is also equipped at its opposite end with a swiveling bearing or sliding element.The link or each connecting rod is pivotally coupled to at least one of the braced arms 221 of the X formed by one of the scissors of the second pair of scissors, i.e. the upper pair of scissors, by a pivot with an axis parallel to the pivot axis of the arms 221 of each X of the second pair of scissors to allow a displacement of the connecting rod in the driven state in pivotal movement by the actuator 23 between a position of support against the brace 24 and a position away from the brace 24.

[0044] The connecting pivot of the or each connecting rod to a scissor 22 of one of the pairs of scissors extends between the bearing or friction member of the connecting rod and the end of the connecting rod coupled to the actuator 23.

[0045] Thus, the portion of the connecting rod(s) extending between the pivot and the bearing or friction element forms a lever. During the transition from the lower to the upper position of the plate 2, the connecting rod, which is supported on the base by its bearing or friction element, pivots around the pivot until it comes to a stop against the spacer 24. At this point, the forces of the actuator 23 are transmitted to the scissors 22 of the second pair of scissors.

[0046] The lifting table 1 also includes extensions 9 of the platform 2, one pivotally coupled to the front edge 7 and the other to the rear edge 8 of the platform 2. Due to the nature of the platform 2, one of the extensions is coupled to pivotement to the front platform element 11 while the other of the extensions 9 is coupled to the rear platform element 12. Each extension 9 comprises a plate with folded edges. Said extension 9 extends in line with platform 2 and adjoins platform 2 by one of its edges while the opposite edge of the extension 9 is free or coupled to a ramp 19 which will be described below. The longitudinal dropped edges of each extension 9 have a triangular shape to form an edge whose height decreases from the connection zone of the extension 9 to the plate 2 towards the free edge of said extension 9. Each extension 9 is mounted to pivotally move between a deployed position in which it forms with the top face 3 of the plate 2 an angle close to 180°, that is to say equal to 180° to + or - 4 degrees and a folded position in which it forms with the bottom face of the plate 2 an angle between 90 and 175°.

[0047] Table 1 includes, for each extension 9, a unlockable locking system 15 for said extension 9, at least in the deployed position. Details of the unlockable locking system 15 for an extension 9 are visible in the figure 12 This unlockable locking system 15 comprises two parallel support legs 16 arranged on the underside of the platform 2 and mounted at one of their pivotal ends on the platform 2 about an axis transverse to the platform 2. This axis extends parallel to the connecting axis of the X-shaped arms 22 of a scissor mechanism. This pivot connection extends between a platform element other than the central platform element 10 and the leg 16. The support legs 16 are connected at their end opposite the one coupled to the platform by a connecting bar 17 capable of coming into the locked configuration of said system 15 against a stop 18 formed on a face called the underside of the extension 9.The leg 16 support / linking bar 17 assembly is manually actuable to move the locking system 15 from a locked configuration in which the extension is in the deployed position and the linking bar 17 of the legs 16 support is in contact with the stop 18, as illustrated in the bottom view of the . figure 12 , to an unlocked configuration in which the extension 9 is free to pivot around an axis parallel to the pivot axis of the scissor arms of the lifting device 5 in the direction of a lowering of the extension for passage into the folded position, as illustrated by the top view at the figure 12 .

[0048] The stop 18 can be formed by an elongated piece against which the connecting bar 17 of the support legs 16 is able to bear in the locked configuration of the locking system 15.

[0049] Thanks to the presence of these extensions 9, which increase the length of the platform and the overall dimensions of the table, a wide range of configurations are possible: both extensions 9 (front and rear) in the deployed position, a single extension 9 (front or rear) in the deployed position, or no extensions 9 in the deployed position. This design allows for the versatility of the lifting table 1, which is capable of lifting a rolling vehicle by means of a grip under the chassis 31 of the vehicle 30, as illustrated in the figure. figure8 , where the wheels of the machine extend outside the platforms 2 or a grip under the wheels of the machine, as illustrated in figures 3 And 6 where the wheels of the vehicle are positioned above and vertically above at least one of the two platforms. This multiple positioning of the extensions, combined with a variation in the length of the platform, allows for the reception on said table of vehicles with 2, 3 or 4 wheels.

[0050] In the case of under-chassis lifting, the method of lifting a rolling vehicle 30 using such a lifting table 1 may include a step of rolling the vehicle 30 to a vertical position on the platform 2 with the wheels of the vehicle 30 extending beyond the platforms 2, and a step of actuating the lifting devices 5 for lifting the vehicle 30 by means of an under-chassis grip 31 of the vehicle 30 as illustrated in the figure 8 .

[0051] The lifting table 1 also allows for lifting the vehicle under the wheels, as illustrated in the diagram. figures 3 And 6 To facilitate this wheeled loading, particularly intended for two- or three-wheeled vehicles, and possibly four-wheeled vehicles, table 1 may include access ramps 19 visible to figures 6 And 7Each can be coupled, generally in a removable manner, to one of the extensions 9. Thus, one of the ramps 19 is pivotally coupled to one of the extensions 9 and the other ramp 19 is pivotally coupled to the other of the extensions 9 as illustrated in the figure 5 . Each ramp 19 extends, in the coupled state with an extension 9, along an edge of the extension 9 opposite the edge of the extension 9 adjoining one of the edges of the plateau 2.

[0052] Each ramp 19 is presented here in the form of a plate fitted on its underside with hooks capable of being inserted into slots in an extension 9 to allow, when the hooks are inserted into the slots, the positioning of the ramp 19 in line with an extension 9 as illustrated in the central view of the figure 13 Each ramp 19 is pivotally coupled to an extension 9, freely pivoting between an active position in which the platform is in the lowered position and the ramp 19 forms an angle of approximately 165° with the upper face of the extension 9, and an inactive position in which the platform 2 is in the raised position and the ramp 19 forms an angle of approximately 90° with the lower face of the extension. In this inactive position, ramp stops bear against the lower face of the extension 9 to act as end stops for the ramp 19 in the inactive position. In the active position, the hooks and stops cooperate with each other and with the slots in the extensions 9 to maintain the ramp 19 in the active position.

[0053] Each access ramp 19 is equipped with at least one rollover stop 20 extending at least partially beyond the landing surface of a rolling vehicle formed by the platform / extensions / ramp assembly, in at least one of the angular positions the ramp can assume to obstruct the vehicle's movement on said surface. This rollover stop 20 is formed by a plate extending along the edge of the ramp's running surface, on the side of the ramp that can be coupled to the extension. When the ramp is in its active position, the rollover stop 20 is inactive, as illustrated in the figure 6 In the inactive position of ramp 19 as illustrated in the figure 7 , the anti-rollover stop 20 is active.

[0054] Table 1 also includes at least one wheel vise 25 that can be removably coupled to at least one of the front 11 or rear 12 tabletop elements as illustrated in the figure 3 The wheel vise(s) 25 can be coupled to a turntable element other than the central turntable element 10. It is also possible, as illustrated by the figure 6 to add a plate-like element 26 between the two platforms 2 to fill the space between them. This added element 26 can be fitted with pegs that fit into notches in the platforms 2. This configuration is particularly suitable for three-wheeled vehicles.

[0055] In the case of a wheeled support, the method of lifting a vehicle 30 using a lifting table 1, as described above, possibly with at least one of the extensions 9 in the deployed position, comprises the following steps: a positioning step of each of the wheels of the machine 30 in support on the support surface formed by at least one of the platforms and / or at least one of the extensions 9 if it is in deployed position, and a step of actuating the lifting device 5 for a lifting of the machine 30 by a grip under the wheels 32 of the machine 30.

[0056] Thanks to the many configurations offered by the table, depending on the length of the platform 2, the position (deployed or folded) of the extensions 9 and the presence or absence of ramps 19, all light vehicles with 2, 3 or 4 wheels weighing less than 3.5 tonnes can be accommodated by this table.

Claims

1. Lifting table (1) for the repair and / or maintenance and / or inspection of rolling equipment (30) comprising a chassis (31) and wheels (32) for ground movement of the chassis (31), said table (1) comprising two parallel coplanar platforms (2) each having a top face (3) and a bottom face (4), two lifting devices (5) each associated with a platform (2) for raising and lowering said platforms (2) and a control unit (6), said control unit (6) being configured to control synchronous operation of the lifting devices (5), each platform (2) extending longitudinally between two edges respectively called front (7) and rear (8) of said platform (2) and the lifting table (1) comprising, for each platform (2), two extensions (9) of the platform (2) which can be pivotally coupled, one to the front edge (7), the other to the rear edge (8) of the platform (2), characterized in thateach tray (2) is formed of tray elements (10, 11, 12) mounted by sliding interlocking to form a tray (2) called telescopic adjustable in length.

2. Lifting table (1) according to claim 1, characterized in that the elements (10, 11, 12) of a tray of a tray (2) comprise a tray element called central (10) and two tray elements called respectively front (11) and rear (12) capable of extending each at least partially on either side of the central tray element (10) and each coupled by sliding interlocking to the central tray element (10).

3. Lifting table (1) according to the preceding claim, characterized in that the central platform element (10) is stationary and in that The front (11) and rear (12) platform elements are mounted independently when moving.

4. Lifting table (1) according to claim 2 or 3, characterized in thatEach front (11) or rear (12) platter element, coupled by sliding fit to the central platter element, and mounted movable relative to the central platter element (10) between two extreme positions corresponding, one, to a position away from said central platter element (10), the other, to a position close to said central platter element (10) in which it is arranged to overlap the central platter element (10), is equipped with at least one locking member (131, 132) in each of said extreme positions.

5. Lifting table (1) according to the preceding claim, characterized in that the or at least one of the locking members (131, 132) of said front (11) or rear (12) tray element, in one of the extreme positions is a pivoting hook open towards the front edge (7) of the tray (2), in thatthe or at least one of the locking members (131, 132) of said front (11) or rear (12) tray element, respectively, in the other of the extreme positions is a pivoting hook open towards the rear edge of said tray (2), and in that said locking members (131, 132) of the front tray element (11), or respectively rear (12), are configured to cooperate with a common complementary locking member (14) carried by the central tray element (10).

6. Lifting table (1) according to claim 5, characterized in that the pivoting hook forming the or a locking member (132) of the front tray element (11), or respectively rear (12), in one of the extreme positions forms the locking member (132) of the front tray element (11), or respectively rear (12), in the other of the extreme positions.

7. Lifting table (1) according to claim 5 or 6, characterized in thatthe complementary locking member (14) common carried by the central plate element (10) is a pin extending in projection from a longitudinal edge of said central plate element (10).

8. Lifting table (1) according to any one of the preceding claims, characterized in that Each extension (9) is mounted to pivotally move between an extended position, in which it forms an angle of approximately 180° with the top face (3) of the plate (2), and a folded position, in which it forms an angle between 90° and 175° with the bottom face (4) of the plate (2), and in that said table (1) includes, for each extension (9), a unlockable locking system (15) for said extension (9) at least in the deployed position.

9. Lifting table (1) according to the preceding claim, characterized in thatthe unlockable locking system (15) of at least one of the extensions (9) comprises two parallel force legs (16) mounted at one of their pivoting ends on the plate (2) around a transverse axis of said plate (2), said force legs (16) being connected at their opposite ends by a connecting bar (17) capable of coming into the locked configuration of said system (15) bearing against a stop (20) provided on a face called the underside of the extension (9).

10. Lifting table (1) according to any one of claims 1 to 9, characterized in that said table (1) includes two access ramps (19) each of which can be pivotally coupled to one of the extensions (9), each ramp (19) extending, in the state coupled to an extension (9), along an edge of the extension (9) opposite the edge of the extension (9) adjoining one of the edges of the tabletop (2).

11. Lifting table (1) according to the preceding claim, characterized in thatEach access ramp (19) is equipped with at least one rollover stop (20) extending at least partially beyond the receiving surface of a rolling vehicle formed by the assembly of the platform (2) / extensions (9) / ramps (19) in at least one of the angular positions that can be taken by the ramp (19) to form an obstacle to the movement of the vehicle on said surface.

12. Lifting table (1) according to any one of claims 1 to 11, characterized in that the device (5) for raising a platform (2) includes a base (21), one or more pairs of parallel scissors (22) carried by said base (21) and extending between the base (21) and the central platform element (10) and at least one actuator (23), in that Each scissor (22) comprises two X-shaped arms (221) coupled to pivot around an axis orthogonal to the plane of the X, in thatone of the arms (221) of one of the X's and the arm (221) opposite the other of the X's of the or at least one of the pairs of scissors are connected by a spacer (24) and in that one end of the arms (221) of the scissors (22) of the pair of scissors (22) coupled to the central plate element (10) is mounted movable to slide along the central plate element (10) in a direction parallel to the support plane formed by said plate (2).

13. Lifting table (1) according to claim 2 or any one of claims 3 to 12 taken in combination with claim 2, characterized in that the table (1) includes at least one wheel vise removably coupling to the front table element (11), or respectively rear (12).

14. Lifting table (1) according to any one of claims 1 to 13, characterized in that the parallel plates (2) are spaced at least 500 mm apart from each other and in thatthe distance between the most distant longitudinal edges, called external edges of the plateaus (2) is at most equal to 2500 mm.

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