MOTORIZED TURNTABLE FOR AUTOMOBILE

Abstract

Title: MOTORIZED TURNTABLE FOR MOTOR VEHICLE The invention relates to a motorized turntable (100) for a motor vehicle, comprising: - a fixed structure (200) including rolling elements; - a movable structure (300) rotatably mounted on the fixed structure (200), said movable structure (300) including a chassis carrying raceways intended to cooperate with the rolling elements of the fixed structure (200), characterized in that the chassis also includes an external tunnel forming a raceway, and in that the movable structure (300) is assembled by bolting. Figure for the abstract: Fig. 1

Description

Title of the invention: MOTORIZED TURNTABLE FOR MOTOR VEHICLES Scope of the invention

[0001] The field of the invention is that of the design and manufacture of equipment for the enhancement of objects.

[0002] More particularly, the invention relates in particular to a rotating platform for a motor vehicle. State of the art

[0003] For their enhancement, particularly at trade fairs or in dealerships, motor vehicles can be mounted on rotating platforms allowing them to be rotated 360°.

[0004] Thus, customers can view the vehicle from all angles without having to move around the vehicle.

[0005] Typically, turntables are round and comprise a fixed structure intended to rest on a floor and a mobile structure mounted for rotation on the fixed structure.

[0006] The fixed structure comprises a metal frame intended to rest on the ground, and incorporating a plurality of concentric rings around a central pivot, and each carrying rolling elements enabling the rotation of the mobile structure.

[0007] Motor means are positioned to allow the rotation of the mobile structure relative to the fixed structure.

[0008] The mobile structure comprises, for its part, a metal chassis provided, on an underside, with a plurality of running tracks, and chassis cover plates, on which the motor vehicle to be exhibited is placed.

[0009] More specifically, the chassis comprises a plurality of sectors, each consisting of two V-shaped longitudinal members between which at least one cross member is fixed by welding or screwing. In other words, the longitudinal members form the radii of the chassis. The sectors are connected to a central hub at their narrowest end and to a circular rail at their widest end. Other concentric rails are located between the central hub and the rail at the widest end. The rails thus form the running tracks extending under the chassis.

[0010] The mobile structure comprises as many running tracks as the fixed structure comprises rings. More specifically, the running tracks are intended to be positioned opposite one of the rings so as to allow their interaction with the rolling elements carried by the rings.

[0011] For certain installations, the ground may have a recess designed to receive the fixed structure so that the mobile structure is flush with the ground. When the ground is bare, i.e., without a recess, one or more access ramps may be provided to allow a vehicle to drive onto the mobile structure for display.

[0012] Such rotating platforms have certain drawbacks which the present invention aims to remedy.

[0013] First, the frame and chassis are welded assemblies. Their production therefore requires the use of skilled workers whose hourly cost is significant.

[0014] Furthermore, installing the turntable at the exhibition site proves particularly tedious since the welded assemblies are heavy and bulky, requiring great care in their handling to avoid damage, as well as great caution to avoid damaging the surrounding environment, especially when the turntable is installed in an exhibition hall where other vehicles are already on display. In addition, given the significant height of these turntables, excavation work necessitates civil engineering projects that can be costly and generate noise and vibration pollution when the exhibition hall is in operation, for example.

[0015] Finally, the maintenance of such systems proves to be lengthy, tedious, and costly. Indeed, when one of the rolling elements is defective, it is necessary to at least partially dismantle the chassis. Moreover, when the repair must be carried out on the chassis itself, it is necessary to call upon skilled and therefore expensive labor, since the chassis is composed of welded mechanical components. Objectives of the invention

[0016] The invention aims in particular to overcome the drawbacks of the prior art.

[0017] More specifically, the invention aims to provide a rotating platform whose footprint is reduced compared to prior art solutions, compact while being simple in design and installation compared to existing solutions.

[0018] The invention also aims to provide such a platform which is simple to assemble and manufacture.

[0019] The invention further aims to provide such a platform which is robust and simple to maintain.

[0020] The invention finally aims to provide such a platform offering good resistance to the external environment, particularly against corrosion. Description of the invention

[0021] These objectives, as well as others that will appear subsequently, are achieved thanks to the invention, which relates to a motorized turntable for a motor vehicle, comprising: - a fixed structure designed to rest on the ground, and including rolling elements; - a mobile structure mounted for rotation on the fixed structure along a transverse axis of rotation to the ground on which the fixed structure rests, said mobile structure including a chassis carrying running tracks intended to cooperate with the rolling elements of the fixed structure, and chassis cover plates, and - means of propulsion, in which the chassis comprises a lattice formed by longitudinal members to which cross members are attached, characterized in that the chassis also includes an external tunnel forming a ring encircling the lattice and defining a running track, said tunnel comprising a plurality of riders butted together, each rider having a base having an internal surface forming a portion of the running track, and in that the moving structure is assembled by bolting.

[0022] Such a turntable proves to be particularly simple in design, installation and maintenance, robust and inexpensive.

[0023] The presence of the tunnel makes it possible to limit the number of parts while ensuring good mechanical strength. Since the tunnel forms a ring around the frame, the rigidity of the chassis is increased without increasing its size.

[0024] Furthermore, the fact that the riders forming the tunnel include a base whose internal surface forms a rolling track ensures a limitation of the size of the turntable, particularly in its height, compared to existing solutions.

[0025] It is then understood that the lattice is at least partially located under the running track formed by the internal surface of the riders, which promotes the reduction of the bulk of the mobile structure, and therefore of the turntable, particularly in height.

[0026] Furthermore, the bolted assembly facilitates the transport and installation of the turntable. It also simplifies maintenance, as the turntable can be easily and quickly disassembled for servicing.

[0027] Finally, the costs of a turntable according to the invention are lower compared to prior art solutions since it is not necessary to employ skilled labor, given that the assembly is carried out by bolting. The use of a bolted assembly also limits the cost of transporting the turntable to its installation site, since it can be stored in a confined space while disassembled, whereas welded mechanical components of Previous art requires more storage space.

[0028] According to an advantageous aspect, the chassis of the mobile structure also includes a central hub from which the longitudinal members extend, the longitudinal members forming radii of the chassis, the central hub including a flat wall coplanar with the cover plates, said flat wall having a lower surface forming a rolling track intended to cooperate with rolling elements of the fixed structure.

[0029] Such a chassis architecture offers good mechanical strength while limiting the number of elements that make it up.

[0030] Moreover, the shape of the central hub, like the riders, allows the bulk, particularly in height, of the mobile structure and therefore of the rotating platform to be limited.

[0031] This is explained by the fact that the chassis lattice is located at least partially under the running track formed by the lower surface of the flat wall.

[0032] According to an advantageous aspect, each rider has, extending from the inner surface: - an internal cheek turned towards the inside of the mobile structure and provided with holes allowing the passage of bolts intended for the assembly of the rider with the trellis, and - an external cheek turned towards the outside of the mobile structure and with which the driving means cooperate.

[0033] Such a configuration of the riders makes them mechanically resistant while allowing the height of the mobile structure and therefore of the rotating platform to be reduced.

[0034] According to an advantageous aspect, the outer cheek is formed by a plurality of legs spaced apart from each other and extending from the base, each leg having at an end opposite to the base, a claw extending outwards from the mobile structure.

[0035] Such an external cheek piece proves to be mechanically resistant while limiting the rider's weight. Furthermore, the presence of the claws allows for guidance of the training means.

[0036] Consequently, the motor means can be sized downwards since the chassis of the mobile structure is lighter compared to prior art solutions.

[0037] According to an advantageous aspect, the inner cheek comprises a rim extending from the base and, at an end opposite the base, a return extending into the interior of the moving structure.

[0038] The inner cheek thus provides a housing for receiving the lattice, making it easier to assemble the chassis of the mobile structure.

[0039] In addition, the return helps to stiffen the rider, in order to resist the forces me mechanical stresses due to the weight of a load exposed on the rotating platform, for example a motor vehicle.

[0040] According to an advantageous aspect, each rider has a first end comprising a first beveled end, and a second beveled end, the first beveled end of a first rider being intended to cooperate with the second beveled end of a second rider abutted to the first.

[0041] The presence of the first beveled end and the second beveled end allows a progressive passage of the rolling elements from one rider to another.

[0042] In other words, when the riders are butted together, they are positioned so that the first beveled end of a first rider fits together with the second end of a second rider.

[0043] The junction between the two riders is therefore achieved by a partial interlocking of the two riders, which generates a simultaneous and temporary cooperation of the second rider and the first rider with the same rolling element.

[0044] The junction between the two brackets is thus oblique, which limits the noise generated by the movement of the tunnel on the rolling elements. The platform's operation is therefore quieter than that of prior art platforms.

[0045] According to an advantageous aspect, the mobile structure is divided into a plurality of angular sectors, each angular sector comprising a cover plate and, attached to said cover plate, two longitudinal members and a cross member extending between said two longitudinal members.

[0046] Such an architecture makes it easier to transport the turntable from its place of manufacture to its place of installation.

[0047] Moreover, this further facilitates the assembly of the platform since there are fewer parts to assemble.

[0048] Finally, the rigidity of the mobile structure is increased and any operating noises are eliminated because the elements are not assembled, which prevents the appearance of unwanted play between the different elements.

[0049] According to an advantageous aspect, the stringers and the cover plate are made of material.

[0050] This simplifies the design and manufacture of the moving structure and therefore of the turntable. It should be noted that the expression "made from a single material" refers to two sub-assemblies of an assembly, formed from the same material without one of the two sub-assemblies being attached to the other by any assembly operation. For example, such an assembly can be obtained by molding or by bending, rolling, etc.

[0051] Indeed, through simple metalworking operations, such as laser cutting, shearing and bending, or even rolling, it is possible to obtain parts that- resistant and whose manufacture can be carried out by an unskilled workforce.

[0052] According to an advantageous aspect, the longerons together form a V, the cross member having a first end fixed to one of the longerons at a first distance from the apex of the V and a second end fixed to the other of the longerons at a second distance from the apex of the V, the second distance being strictly greater than the first distance.

[0053] This architecture avoids an overlap between two adjacent crossbeams, which would generate a local overthickness of the mobile structure and, in the worst case, could generate a lack of flatness of the cover plates impacting the aesthetics of the turntable.

[0054] In addition, such a positioning of the cross member makes it possible to increase the mechanical resistance of the angular sectors by offering a better distribution of mechanical stresses. Figures

[0055] Other features and advantages of the invention will become more apparent from the following description of preferred embodiments of the invention, given by way of illustrative and non-limiting examples, and the accompanying drawings described below.

[0056] [Fig.1] Fig.1 is a schematic top view representation of a motorized turntable according to the invention.

[0057] [Fig.2] Fig.2 is a schematic top perspective representation of a fixed structure of the rotating platform according to the invention.

[0058] [Fig.3] The [Fig.3] is a schematic top perspective representation of a mobile structure of the rotating platform according to the invention.

[0059] [Fig.4] The [Fig.4] is a schematic perspective representation from below of a rider of the mobile structure of the rotating platform according to the invention.

[0060] [Fig. 5] [Fig. 5] is a schematic top-view perspective representation of a rider of the mobile structure of the rotating platform according to the invention.

[0061] [Fig.6] Fig.6 is a schematic representation of an angular sector according to a variant embodiment of the mobile structure of the rotating platform according to the invention.

[0062] [Fig.7] Fig.7 is a schematic, top-view representation illustrating the joining of two riders of the mobile structure of the platform according to the invention. Detailed description of the invention

[0063] A rotating plate 100 according to the invention is now described with reference to figures 1 to 6.

[0064] With reference to Figures 2 and 3 respectively, the platform 100 comprises a fixed structure 200 intended to rest on a floor, and a mobile structure 300 intended to to be mounted on rotation on the fixed structure 200.

[0065] More specifically, the mobile structure 300 is mounted for rotation on the fixed structure 200 along an axis of rotation A transverse to said ground on which the fixed structure 200 rests.

[0066] The rotation of the mobile structure 300 on the fixed structure 200 is ensured by drive means 400.

[0067] The drive means 400 include, for example, a motor intended to cooperate with a belt, chain or cable which drives the mobile structure 300 in rotation. Various technological solutions can be implemented to enable the drive of the mobile structure 300 by the belt, chain or cable.

[0068] With reference to [Fig.2], the fixed structure 200 is described in more detail.

[0069] The fixed structure 200 includes a metal frame intended to rest on the ground.

[0070] The metal frame comprises a plurality of bars 210 extending from a central pivot 220. The metal frame thus has substantially a star shape.

[0071] The fixed structure 200 also includes a plurality of rolling elements 230 distributed in at least two concentric rings 240.

[0072] The number of crowns 240 is advantageously determined according to the dimensions of the rotating plate 100 and / or the weight supported by the rotating plate 100.

[0073] In the embodiment illustrated by [Fig.2], the fixed structure 200 comprises only two rings 240.

[0074] The rolling elements 230 allow the support and rotational guidance of the mobile structure 300 as explained below.

[0075] The rolling elements 230 take, for example, the form of rollers equipped with bearings. Other solutions such as non-stick pads and / or pads with high abrasion resistance could also be used.

[0076] The rolling elements 230 are advantageously adjustable to compensate for a defect in the ground on which the fixed structure 200 rests.

[0077] For this purpose, the rolling elements 230 incorporate, for example, a fixing plate provided with oblong lights allowing adjustment of the position of the rolling element 230 on the ground.

[0078] The rolling elements 230 can also incorporate height adjustment means to compensate for the presence of an asperity in the ground.

[0079] The rings 240 are concentric around the central pivot 220.

[0080] For certain installations, the ground on which the platform 100 is installed may have a recess intended to receive the fixed structure 200 so that the mobile structure 300 is flush with the ground.

[0081] On the other hand, when the ground is raw, that is to say, when it has not been excavated, One or more access ramps 250 may be provided to allow a vehicle to drive onto the mobile structure 300 for display. In the embodiment illustrated in [Fig. 1], the rotating platform 100 is circular. To provide an aesthetically pleasing appearance, the rotating platform 100 comprises a plurality of ramps 250 arranged to form a truncated conical ring surrounding the metal frame.

[0082] With reference to [Fig.3], the mobile structure 300 is described in more detail.

[0083] The mobile structure 300 includes a chassis and chassis cover plates 310.

[0084] The chassis comprises a lattice formed by longitudinal members 320 to which cross members 330 are assembled.

[0085] As described previously, in the embodiment illustrated by [Fig. 1], the rotating platform 100 is circular. The longitudinal members 320 thus extend from a center of the movable structure 300, forming V-shapes in pairs.

[0086] The mobile structure 300 includes a central hub 340 from which the longitudinal members 320 extend.

[0087] The central hub 340 defines a first rolling track intended to cooperate with the rolling elements 230 of a first ring 240.

[0088] The central hub 340 includes a flat wall coplanar with the cover plates 310. In other words, the central hub includes a planar element extending in the same plane as the cover plates 310.

[0089] Said flat wall has a lower surface forming a rolling track intended to cooperate with rolling elements 230 of the fixed structure 200.

[0090] When the central hub 340 is assembled to the side members 320, the flat wall is bolted to the top of the side members. In other words, the flat wall of the central hub 340 covers the side members 320.

[0091] The central hub 340 can also include a shaft intended to cooperate with the central pivot 220 of the fixed structure 200 to form the point of rotation of the mobile structure 300 on the fixed structure 200.

[0092] The longitudinal members 320 are secured to the central hub 340 by a first end and form spokes of the chassis.

[0093] As illustrated by [Fig.3], the cross members 330 are positioned between the two longitudinal members 320 of a V.

[0094] At a second end, opposite the first end, the longitudinal members 320 are secured to an external tunnel.

[0095] The outer tunnel forms a ring encircling the lattice and defines a running track intended to cooperate with the rolling elements 230 of a second ring 240.

[0096] It is thus understood that the fixed structure 200 comprises a first ring 240 located radially towards the center of the rotating plate 100, and a second ring 240 located radially towards the outside of the rotating plate 100.

[0097] As illustrated in [Fig. 3], the truss also includes half-spars 325 extending between the crossbeams 330 and the tunnel. More precisely, the half-spars 325 form a T with the crossbeams 330, the web of the T being defined by the half-spar 325 and the flange of the T being defined by the crossbeam 330. In other words, the web of the T, i.e. the crossbeam, extends between two side-spars 320 and the flange of the T, i.e. the half-spar 325, extends between the crossbeam 330 and the tunnel.

[0098] The tunnel comprises a plurality of stiles 350 joined together.

[0099] The stiles 350 are described in more detail with reference to Figures 4 and 5.

[0100] Each stile 350 has a base 351 having an internal surface 3511 forming a portion of a running track and, extending from the internal surface 3511, an internal cheek 352, and an external cheek 353.

[0101] The inner cheek 352 is turned towards the inside of the mobile structure 300 and is provided with holes 3521 allowing the passage of bolts for the assembly of the bracket 350 with the truss, i.e. with the longitudinal members 320, half longitudinal members 325 and, optionally, the cross members 330. The assembly of the bracket 350 with the cross members 330 can be carried out when the truss takes a more classic form, for example a grid form, i.e. that the longitudinal members 320 are parallel to each other and the cross members 330 are perpendicular, or almost, to the longitudinal members 320, this not preventing the making of a rotating platform 100 of round shape.

[0102] As can be seen in Figures 4 and 5, the inner cheek 352 includes a rim 3522 extending from the base 351 and, at an end opposite the base 351, a return 3523 extending into the interior of the movable structure 300.

[0103] The rim 3522 and the return 3523 form a shoulder intended to receive one end of a longitudinal member 320 or a half longitudinal member 325 to allow their joining by bolting.

[0104] The outer cheek 353 is turned outwards from the mobile structure 300.

[0105] As will be detailed below, the drive means 400 cooperate with the outer cheek 353 of the riders 350 to enable the rotational drive of the mobile structure 300.

[0106] According to an advantageous aspect, the outer cheek 353 is formed by a plurality of legs 3531 spaced apart from each other and extending each from the base 351, more precisely from the inner surface 3511 of the base 351, each leg 3531 having at an end opposite to the base 351, a claw 3532 extending outwards from the mobile structure 300.

[0107] The belt, chain or cable of the drive means cooperates by adhesion with the lugs 3531.

[0108] The belt, chain or cable is thus retained in cooperation with the mobile structure 300 by the legs 3531 and the claws 3532 of the riders 350.

[0109] When the mobile structure 300 is mounted on the fixed structure 200, the lattice extends between the rings 240 carrying the rolling elements 230.

[0110] The raceways are supported by the central hub 340 and the tunnel, which limits the overall height of the moving structure 300 and therefore of the rotating platform 100. This is in contrast to the prior art, where the raceways are located under the lattice. The design of the chassis of the moving structure 200, in which the raceways are supported by the base 351 of the brackets and by the flat wall of the central hub 340, limits the height of the moving structure 200 since the raceways are not located under the lattice.

[0111] In the case of a large rotating platform 100, the fixed structure 200 may include more than two 240 crowns carrying 230 rolling elements.

[0112] In this case, the longitudinal members 320 of the chassis of the mobile structure 300 are advantageously replaced by half longitudinal members 325 between which are inserted cross members 350. This then makes it possible to create new running tracks on the chassis while retaining the advantages of the reduction in height.

[0113] The lattice therefore extends mainly under the rolling tracks, which makes it possible to minimize the height of the rotating plate 100, and therefore its size.

[0114] As illustrated by [Fig.1], at least one of the cover plates 310 has an inspection hatch 315 allowing access to the rolling elements 230 of the mobile structure 300.

[0115] With reference to [Fig.7], each rider 350 has a first beveled end 354, and a second beveled end 355, the first beveled end 354 of a first rider 350 being intended to cooperate with the second beveled end 355 of a second rider 350 abutted to the first.

[0116] The presence of the first beveled end 354 and the second beveled end 355 allows a progressive passage of the rolling elements 230 from a first rider 350 to a second rider 350, as illustrated by [Fig.7].

[0117] In other words, when the riders 350 are butted together, they are positioned so that the first beveled end 354 of a first rider 350 and the second beveled end 355 of a second rider 350 add up to form the running track.

[0118] The junction between the two riders 350 is therefore achieved by a partial overlap of the two riders 350, which results in the partial support of the riders 350 on each other.

[0119] The junction between the two riders 350 is oblique with respect to a radius R extending substantially parallel to a ground on which the platform 100 rests, and transverse to the axis of rotation A. This makes it possible to limit the noise generated by the movement of the tunnel, i.e. the succession of riders 350 butted together, on the rolling elements 230. The operation of the platform 100 is therefore silent.

[0120] Preferably, each of the first beveled end 354 and the second beveled end 355 forms, with a radius R, an angle a greater than 10°. Preferably, the angle a is greater than 15°.

[0121] As illustrated by [Fig. 7], the rolling elements 230 (only one of which is shown in dashed lines in [Fig. 7]) cooperate simultaneously with two riders 350 when they are aligned with the first beveled end 354 of the first rider 350 and the second beveled end 355 of the second rider 350

[0122] According to an alternative embodiment illustrated by [Fig.6], the mobile structure 300 is divided into a plurality of angular sectors 500.

[0123] Each angular sector comprising a cover plate 310 and, integral with said cover plate, two longitudinal members 320 and a cross member 330 extending between said two longitudinal members 320.

[0124] In this embodiment, the longerons 320 and the cover plate 310 are formed from a single piece of material. In other words, the longerons 320 and the cover plate 310 form a single unit. It should be noted that the expression "formed from a single piece of material" refers to two sub-assemblies of an assembly, formed from the same material without one of the two sub-assemblies being attached to the other by any assembly operation. For example, such an assembly can be obtained by molding or by bending, rolling, etc.

[0125] For this purpose, a sheet of metal is cut, for example by laser cutting, and then bent to form the cover plate 310 on one side, and the stringers 320 on the other. If necessary, a few welds can be made to hold the bent stringers 320 together and to the cover plate 310.

[0126] An end reinforcement 510 can also be made, again by folding and possibly a few points of welding, on the edge of the cover plate 310 coming at the right of a rider 350.

[0127] In this embodiment, the longitudinal members 320 together form a V and the cross member 330 is attached by bolting to the monobloc assembly comprising the cover plate 310 and the longitudinal members 320.

[0128] For this purpose, each cross member 330 has: - a first end 331 fixed to one of the longerons 320 at a first distance D1 from the tip of the V, and - a second end 332 attached to the other of the longerons 320 at a second distance D2 from the tip of the V, the second distance D2 being strictly greater than the first distance Dl.

[0129] This makes it possible in particular to avoid any overlap of the cross members 300 of two adjacent angular sectors 500 during the assembly of the mobile structure 300.

[0130] It is therefore not necessary to use skilled labor for the manufacture of these angular sectors 500 since the weld points do not have a structural role and can be made by an unskilled worker.

[0131] The assembly and fixing to the ground of the fixed structure 200 are carried out by means of bolts and / or simple screws.

[0132] The same applies to the construction of the mobile structure 300 which is assembled by means of bolts and / or simple screws.

[0133] It is recalled that a bolt is the result of the helical cooperation of a screw and at least one nut.

[0134] For simplicity, we will speak of bolted assembly, even if for some assemblies only screws are used.

[0135] The rotating 100 plate which has just been described offers many advantages among which the following.

[0136] First, the bolted assembly makes it easier to handle the different elements constituting the rotating platform 100 to allow its transport and installation on site from a manufacturing location.

[0137] Secondly, the use of bolts and / or screws makes maintenance of the rotating plate 100 easy since it is enough to unscrew the screws to allow disassembly and thus ensure maintenance.

[0138] Thirdly, the assembly by bolts and / or screws does not require any special qualification, so the cost of manufacturing and installing the rotating platform 100 is reduced compared to existing solutions for which manufacturing at least involves welding requiring skilled and therefore expensive labor.

[0139] Furthermore, bolting and / or screwing allows for complete treatment of each component, particularly against corrosion by galvanizing or painting, before assembly. This prevents premature degradation of the tray. This corrosion protection is largely limited, or even impossible, when the components are welded, since the melting of the materials during welding causes the degradation of the protective coating. Thus, by assembling its constituent elements by bolting and / or screwing, it is possible to increase the service life of the tray 100 compared to prior art solutions where the various components are welded.

[0140] Fourth, the outer tunnel allows: - to stiffen the mobile structure 300 by connecting the ends of the longitudinal members 320 by screwing, - to form an external running track for the mobile structure 300, - to limit, or even eliminate, the noise associated with the passage of the rolling elements 230 on the running track at the junction between the stiles 350 thanks to the beveled ends, - to limit the height of the platform 100 since the tunnel forms a cavity in which the rolling elements 230 are received, - to form a support and guiding means for the 400 motor means, in particular the belt, chain or cable.

[0141] Finally, the implementation of manufacturing steps falling within the field of simple boiler making, i.e. laser cutting, shearing and bending, or even curving, do not require extremely skilled labor, nor special protective equipment, and are quick to implement compared to the implementation of welding processes.

Claims

Demands

1. Motorized rotating platform (100) for motor vehicle, comprising: - a fixed structure (200) intended to rest on a ground, and including rolling elements (230);- a mobile structure (300) mounted for rotation on the fixed structure (200) about an axis of rotation (A) transverse to said ground on which the fixed structure (200) rests, said mobile structure (300) including a chassis carrying running tracks intended to cooperate with the rolling elements (230) of the fixed structure (200), and plates (310) covering the chassis, and - drive means (400), in which the chassis comprises a lattice formed by longitudinal members (320) to which cross members (330) are assembled, characterized in that the chassis also comprises an external tunnel forming a ring encircling the lattice and defining a running track, said tunnel comprising a plurality of brackets (350) butted together, each bracket (350) having a base (351) having an internal surface (3511) forming a portion of the running track, and in that the mobile structure (300) is assembled by bolting.

2. Platform (100) according to the preceding claim, characterized in that the chassis of the mobile structure (300) also includes a central hub (340) from which the longitudinal members (320) extend, the longitudinal members (320) forming spokes of the chassis, the central hub (340) including a flat wall coplanar with the cover plates (310), said flat wall having a lower surface forming a rolling track intended to cooperate with rolling elements (230) of the fixed structure (200).

3. Platform (100) according to any one of the preceding claims, characterized in that each rider (350) has, extending from the inner surface (3511): - an inner cheek (352) facing inwards towards the interior of the moving structure (300) and provided with holes (3521) allowing the passage of bolts for the assembly of the rider (350) with the lattice, and - an outer cheek (353) facing outwards towards the exterior of the moving structure (300) and with which the driving means (400) cooperate.

4. Platform (100) according to the preceding claim, characterized in that the outer cheek (353) is formed by a plurality of legs (3531) spaced apart from each other and each extending from the base (351), each leg (3531) having at an end opposite the base (351), a claw (3532) extending outwards from the mobile structure (300).

5. Platform (100) according to claim 3 or claim 4, characterized in that the inner cheek (352) comprises a rim (3522) extending from the base (351) and, at an end opposite the base (351), a return (3523) extending into the interior of the movable structure 300.

6. Platform (100) according to any one of the preceding claims, characterized in that each rider (350) has a first beveled end (354), and a second beveled end (355), the first beveled end (354) of a first rider (350) being intended to cooperate with the second beveled end (355) of a second rider (350) abutted to the first.

7. Platform (100) according to any one of the preceding claims, characterized in that the movable structure (300) is divided into a plurality of angular sectors, each angular sector comprising a cover plate (310) and, integral with said cover plate (310), two longitudinal members (320) and a cross member (330) extending between said two longitudinal members (320).

8. Platform (100) according to the preceding claim, characterized in that the side rails (320) and the cover plate (310) are made of material.

9. Platform (100) according to claim 8 or claim 9, characterized in that the stringers (320) together form a V, the cross member (330) having a first end (331) attached to one of the stringers (320) at a first distance (D1) from the tip of the V and a second end (332) attached to the other of the stringers (320) at a second distance (D2) from the tip of the V, the second distance (D2) being strictly greater than the first distance (D1).