FR2708024A1 - Installation for parking vehicles - Google Patents

Abstract

The invention relates to an installation for parking vehicles of the type including: - a common entrance (7), - a set of individual spaces for each of the said vehicles, formed in a vertical stack and in proximity to the said common entrance, - a set of independent carriages or beds (9) respectively supporting each of the said vehicles, - a system (5) for vertical transportation of the said carriages (9). This installation is characterised in that the transport system (5) includes an elevator frame (23) which can move vertically and is shaped to surround the external sides of the beds (9) for supporting the vehicles with a slight amount of clearance, this frame being equipped with means for gripping hold of the bed which are capable of being made to come and engage on the bed (9) or out of reach of the latter, so as to pick up the bed or release it at the desired level.

Description

VEHICLE PARKING INSTALLATION
The present invention relates to improvements relating to vehicle parking installations of the type described by FR 2,586,443 and essentially relating to a parking installation for motor vehicles, forming an automatic individual garage in an urban environment. It relates more particularly to the kinematics of translation of the vehicle carrier plates as well as all of the associated means concerning the security of their movement.

It will be recalled that the subject of this publication is a vehicle parking installation, in particular for motor vehicles in an urban environment of the type comprising:
- a common entrance in the form of a closed garage equipped with an automatic door and a call and parking control for said vehicles, through which vehicles enter and exit,
a set of individual locations intended for the respective parking of each of said vehicles, arranged in an available space, formed vertically and in the vicinity of said common entrance,
a set of independent trolleys or trays, respective supports of each of said vehicles, these trays being all identical, in a rectangular format equivalent to that of the vehicles to be parked,
- a vertical transport system of said carriages able to move from the common entrance, through an opening or hopper of dimensions substantially equivalent to those of the trays, formed in its floor, in slaving of said command, a selected carriage, in order to deposit a vehicle in a respective parking space or to receive it,
said command can only be put into operation by authorized users.

 The installation's transport system essentially consists of a lifting console moving an intermediate plate with its transfer carriage, guided vertically along a vertical post by rolling on rollers. The assembly is located in the hopper space. The lifting console supporting the intermediate plate is raised by a central jack extending over the entire depth of the hopper where the locations of the cars are located. The vehicle carrier plates are moved relative to their respective locations by means of the transfer trolley maneuvered with reference to the intermediate plate.

However, the installation of a vertical translation system by cylinder requires significant additional underground work concerning the positioning of the relatively long body of the central cylinder in the pit and often requires the implementation of costly techniques capable of responding to the hydrogeological nature of the basement.

 The transport system can also consist of a freight elevator operating according to conventional elevator technology. This arrangement is cumbersome as regards the dimensioning of the lift cabin.

 The invention aims to overcome these drawbacks by proposing a parking installation of the aforementioned type, characterized in that the transport system comprises an elevating frame, movable vertically, shaped to surround with low clearance the external gauge of the support plates of the vehicles and provided with means for gripping the trays capable of being ordered in engagement on a selected tray or out of range thereof, so as to take care of said tray or to release it at the desired level.

 The lifting frame essentially consists of a rectangular tubular frame with external dimensions complementary to those external to the trays apart from play and whose height is substantially equivalent to that of the trays. Thanks to this arrangement, the transport system occupies little space and is substantially integrated into the thickness of the slabs or frameworks of each of the vehicle parking levels.

 The lifting frame is guided vertically in the hopper space by conventional associated guidance and lifting means. Thus the frame can be guided vertically by pads on guide rails and connected to traction cables suitably arranged on its template for load balancing, according to a technology similar to that of elevators.

 It can also be raised by means of meshing with drive gears on rack bars installed vertically on the height of the hopper.

 The means for gripping or gripping the plate may consist of latches or hooks suitably disposed on the periphery of the frame, for example at its corners and cooperating with complementary receiving yokes on the plate.

 They can also consist of elements of the support stop type applying locally in service at locations provided for this purpose on the plate. They can be applied over the width of one of the sides of the plate, consisting for example of at least two associated tubular elements, controlled in transverse movement along the opposite sides of the lifting frame and applied in service on complementary profiled rails formed on the set.

 A second aspect of the invention is involved in the design of the lifting frames defined above. Indeed, the latter cannot receive (or with difficulty) the means for transferring the support plates relative to their parking location. The transfer of the plates is therefore carried out indirectly by moving the support plate by external actuators on its reception area in the hopper until it is brought to a selected location where it is identified, the frame disappearing before movement, while the tray is taken up in the hopper by a tray take-up system, controlled when the lifting frame is stopped and retractable for the passage of the lifting frame or when the latter is controlled in movement.

 Thus, the plates can be placed directly on a mobile parking structure, of the rotating carousel type for example, suitably indexed in rotation.

 The plates can also include their own support elements for guiding movement, for example translation pavers with rollers or rolling balls on corresponding raceways of the parking surface, which is fixed, these carriages being moved through said external actuators (pusher cylinders, transfer carriage, etc.) in thrust relative to one another according to a circuit passing through the hopper which constitutes the junction area for entry and exit of the plates.

Other features and advantages of the invention will be described below with reference to the description of exemplary embodiments and the accompanying accompanying drawings in which
Figure 1 is an overall view along a partial cross section of a parking installation of rotating carousel vehicles according to the invention
Figure 2 is a partial top view of a storage level of the parking installation according to Figure i
Figure 3 is a plan view of the lifting frame supporting a vehicle support plate
Figure 4 is a half cross section of the lifting frame with a support plate
FIGS. 5 and 6 show the lifting frame with a lifting plate, at the level of the reception surface, respectively in a left half-cut before positioning locking and in a corresponding right half-cutting in locking position
Figure 7 is an overall top view of the installation according to the invention, according to an alternative embodiment with orthogonal storage
FIGS. 8 and 9 show respectively in a cross-sectional and plan view the guide blocks of the support plates in their guide path, and
Figures 10 and 11 are views similar to Figures 8 and 9 of an alternative embodiment of the guide blocks.

 Advantageously, reference is made to patent publications FR 2 586 443 and EP 0 394 130 to understand the description which follows.

 The parking installation as shown in FIGS. 1 and 2 uses turntables 1 arranged in an underground vehicle parking space and on several altitude levels or parking stages, a hopper 3 in which the transport system 5 for the vehicles to be parked and an upper reception kiosk 7 in line with the hopper and through which the vehicles enter and exit. The vehicles are each received on a clean support plate 9 and are moved by the transport system on one of the turntable stages 1, to an angularly indexed position, determined and recognized by the installation control unit. . The turntables each consist of a tubular shelving receiving at appropriately distributed points the support plates of the vehicles. The plates 1 rotate concentrically in slaving to the installation control unit, receiving on their surface, in regularly angularly distributed locations, each of the support plates 9 empty or occupied, depending on whether the corresponding vehicle is supported for parking or not.

 The set of turntables constitutes in a way a rotating carousel or carousel. This merry-go-round includes an internal barrel li to which radiating arms 13 are connected for each rotating annular plate. The end of each radiating arm is equipped with rollers 14 ensuring the support of the platform on its plane or raceway 15. The radiating arms 13 are connected and braced by a frame of tubular shelving, constituting both a non-deformable assembly in the plan of rotation and support of the vehicle carrier plates.

 The race tracks are described below.

 To guide the merry-go-round in rotation, there are first sets of rollers with a vertical axis (not shown), fixed to the central shaft of the structure by means of adjustable supports in order to ensure concentric guidance. Then to support each stage of the carousel in its operating plan, sets of rollers with horizontal axis regularly distributed (not shown), are fixed to the central barrel of the structure by means of adjustable supports in order to guarantee guidance on the same horizontal guide plane.

The end of the radiating arms carrying the rollers 14 and constituting the outside diameter of the ride of the merry-go-round is supported by the raceways 15 (slab edge) formed on the external envelope of the parking space. These paths are concentric and correspond to the plans of the various turntables. The hopper housing the transport system is located between the barrel and the envelope of the parking space to provide the passage for the lifting system which must pass vertically from the lower level to the level of the kiosk surface. The passage hopper comprises an eclipsable raceway 17 by vertical tilting. In the service position, the external raceway element 17 is horizontal and allows the riding elements to roll. In the vertical position, the storage tray of the corresponding level is immobilized in position and the transit of the elevator is allowed. In the event of an operation requiring the rotation of the storage roundabout, the tilting element of the raceway (flap rocking over the width of the hopper) of the level in question is replaced in the rolling plane under the effect of an actuator cylinder type or equivalent (not shown), and the evolution of the elevator is then limited between the level concerned and the upper access level.

 The lower level is constituted by the floor 19, being occupied entirely by vehicle carrier plates, and offering a continuous running surface to the lower plate carrier armory.

 It will be noted that the rolling paths of the turntables can also be constituted by a metal frame fixed to the peripheral wall of the structure, or suspended under a slab, offering the same functionalities (eclipsability) as those described above, for crossing the elevator pass hopper.

 The turntables can be driven either by grip or by linear motor. In the case of drive by adhesion, some of the radiating arms are equipped with geared motor groups actuating the rollers 14 with a tire which by rolling on the external raceway 15 allow the rotation of the plate and its load. The power supply of the corresponding gearmotors is ensured by sliding shoes integral with the rotating structure of each merry-go-round plate, capturing the current on circular rails fixed to the central barrel of the structure.

 For traction in a linear electric motor, the powered element, that is to say the inductor, is fixed on the slab of the envelope, or the raceway of the carousel, and the armature, not wound, consists of a plate that is both magnetic and conductive, fixed to the frame of the merry-go-round platform; in this case, the inductor or inductors are supplied by fixed cables laid on a slab conveying the electrical energy regulated by a fixed variator.

 At each location of the support plate there is a fixed locking and indexing device in the form of a conventional eclipsable finger 21 integral with the turntable and positioned in a complementary housing of the deposited support plate, thus guaranteeing precise positioning of the support plate. on the turntable and its maintenance in each of the functional angular positions. Thus, the constancy and the reproducibility of the position of the vehicle carrier plates on the turntable are ensured and the perfect recovery of the plates in position is guaranteed parallel to a precise rotation of recovery of the turntable.

 The elevator is located in the hopper space. It moves each of the vehicle support plates between the access level and the selected storage level and comprises an electro-mechanical lifting assembly provided with a lifting tubular frame 23 (FIGS. 3-4) installed in the hopper. The frame is connected at its corners to four lifting cables 25 wound on drums 27. This assembly ensures, thanks to the four grooved drums motorized in a constant velocity manner via transmission shafts, the vertical movement of the lifting cables of the frame . The grooved drums simultaneously support the counterweight suspension cables 29 for partial load balancing.

 The lifting frame has a rectangular shape with internal dimensions slightly larger than those of the support plates (standard gauge).

 This frame consists of two end crossmembers 31 at a fixed distance from each other, receiving the chairs for fixing the lifting cables, and two transversely movable beams 33 guided on the crossbeams and whose variable distance l '' one of the other thanks to a motorization system on board the sleepers allows the support or the deposit for vertical transfer of the vehicle carrier trays. The movable side members 33 indeed come in complementary wings 35 (FIG. 4) of the support plate when it is taken over or move away from it to release it.

 The crossmembers of the lifting frame include pads conventionally received in vertical slides 37 which guide the vertical movement of the elevator throughout its duration. The slides rest on guides fixed to the infrastructure of the hopper; one of them also supports an absolute encoder controlling the vertical position of the load by meshing its control pinion on a vertical rack fixed on one of the guides. During vertical maneuvers without platform, the lifting frame is in the "open" position (Figure 4), that is to say with the side members apart; in this position, the frame, of internal dimensions greater than the external dimensions of a vehicle-carrying tray, passes around the latter and it is positioned at a slightly lower level, to receive the tray to be handled; the side members 33 are brought back to their minimum spacing in the "closed" position, thus sliding under the horizontal flanges 35 of the profiles of the platform to be handled, until they come into lateral support on their vertical faces (FIG. 5) and lock in position specifies on these by motorized indexing lugs 39; in this configuration, the vehicle carrier plate is placed indexed and locked on the lifting frame and it is therefore completely integral with the latter.

 The transverse mobility of the longitudinal members of the lifting frame makes it possible (FIG. 6) to provide additional locking of the vehicle carrier plate when it is in position on the access threshold, this by spacing the longitudinal members 33 by half a stroke ; these are in fact in an intermediate position between the "open" and "closed" positions, and while supporting the plate 9, they are positioned above fixed stops 41 secured to the access threshold. These stops prevent any vertical downward movement of the "half-open" lifting frame, and of the platform that it supports this specific function is particularly useful for the safety of maintenance operations at the higher level.

 The surface kiosk 7 includes a vehicle reception area 43 and a control terminal 45 or input terminal for access to the installation.

 The entry terminal constitutes the interface between the system and the user, it allows the latter to request the parking or the return of his vehicle, using a push button, a credit card, a voice recognition device, or the like.

 The reception area 43 is a rectangular area delimited by a peripheral surround; two sides of the rectangle each have a door 47, one giving access to the reception area, the other allowing to get out.

The outlet of the vertical hopper connecting the surface to the storage volume is located in the center of the reception area and constitutes the access threshold. At rest, the access threshold is obscured, protected and made inaccessible by two tilting panels 49 hinged on the upper slab.

During a parking maneuver, these panels are tilted in a horizontal position and allow the vehicle to access the reception area, on which a vehicle carrier plate is always disposed. The vehicle can thus be brought to the platform in position.

 The vehicle carrier plates are all identical, they are each intended to receive a vehicle for the entire duration of its presence in the parking device, from entry to exit. It is on the vehicle carrier that the vehicle comes to a standstill and that all the mechanical actions necessary for the handling and storage of the vehicle supported by the device are applied.

 The vehicle carrier plates each consist (Figure 5) of two metal profiles opposite the side members 33 and forming said wings 35. These two profiles are such that they provide the necessary mechanical resistance. They each comprise the horizontal wing 35, the aforementioned underside of which is accessible to the lifting frame by its mobile beams 33. The two profiles forming beams are connected transversely to tubular profiles of crosspieces or bars 51, of trapezoidal section whose long side is facing up. These sleeper profiles are suitably positioned under the upper level of said beams so that the upper part of the latter constitutes a guide pavement. They are further apart so as to form a sort of ladder whose space between bars 51 forms a temporary housing for the wheels of the same axle of the received vehicle, which thus ensures its immobilization for the entire duration of the grip. in charge. The mechanically welded assembly thus formed receives in its center a piece of profiled metal sheet 53 reinforcing the assembly and constituting the central guiding device of the vehicle, in particular during its entry; finally, the sleepers 51 forming the two scales of the rolling area are covered with a continuous elastic covering strip 55, providing a smooth rolling surface during entry or exit maneuvers and ensuring that in the storage position no foreign matter, mud, oil or other falling from a vehicle will not create dirt on vehicles stored at the lower level.

 The access threshold constitutes the interface between the road level and the storage volume. During all the access or exit phases of the vehicles, a device with opposite locking flaps 57, disposed on the threshold, ensures the blocking of the lifting frame and vehicle carrier plate assembly.

 The locking flaps of said blocking assembly are two in number, fixed and articulated by knee pads 59 on supports integral with the crown of the access threshold to the upper part of the hopper. These flaps have a complementary shape to the spaces between crosspieces 51 of the scales of the vehicle-carrying plates. At rest, they are integrated into the elevator hopper, being then retracted in a vertical position.

When the lifting frame and vehicle-carrier plate assembly is in the high position in the access threshold, the locking flaps pivot under the effect of a linear actuator 61 of the jack type or equivalent acting on the connecting rod links , until it comes to the horizontal between the crosspieces to support the vehicle carrier plate resting hitherto on the lifting frame. This movement has the primary effect of lifting the wheels of the vehicle positioned between two bars or ladder crosspieces, to the level of the continuous running surface, and the secondary effect of supporting the platform. The load is then transferred from the lifting frame to the flaps locked in position
The pivoting shutters are of mechanically welded construction. They have a trough shape complementary to the space between the crosspieces of the support plate. As mentioned above, they comprise two articulation arms or connecting rods connected by one or more longitudinal crosspieces to the troughs 63 of profiled sheet steel which come to be nested between the crosspieces of the plate, thus constituting the continuous raceway allowing safe rolling. and comfortable vehicles.

 It will be noted that in the immediate vicinity of the access threshold, the hopper is equipped with "skis" or guide pads coated with materials with a low coefficient of friction.

These skis precisely position the lifting frame during its docking, its positioning and its locking by said tilting flaps.

 The variant embodiment with orthogonal storage of the support plates is shown in Figures 7-11.

 The storage system forms a rectangular carousel 65 constituted by the vehicle carrier plates 9 themselves which move at each level or parking level of the parking installation. These plates are supported by translation pads 67 guided on profiled rails 69 of the carousel or slides constituting the guide path of the plates.

This path includes orthogonal sections for the orthogonal storage of the trays. The plates are motorized, either by linear actuator 71 of the jack type acting at each angle of the rectangular carousel (constituted by the succession of plates pushing one another by buffers), or by electric motor with linear induction. The carousel expands over the entire available perimeter, however leaving a space for the hopper 3, equal to the width of a tray, in order to position this space in line with the hopper passing the elevator if necessary for the movement of the latter.

 The vehicle-carrying plates comprise, as indicated, on receiving plates provided for this purpose at its corners the support and guide pads 67. These pads are four in number.

 In a first embodiment (Figures 8-9), these guide members each comprise one or more ball pads 73, of the type usually used in continuous handling. They run on the horizontal faces of the "T" shaped rails or the "U" guide slides of path 69. These pads are accompanied by a roller device with a vertical axis 75 which provides longitudinal guidance in each of the orthogonal directions borrowed from the carousel.

 In a second embodiment, opposite to the previous one (Figures 10-11), the cradles form rolling "skis" on a continuous ball track 77 of the carousel.

 The raceways can also be continuous handling paths with balls allowing a multidirectional horizontal movement, the guidance then being provided by the vertical wing of a specific rail.

 The raceways can be fixed on a slab constituting the continuous floor of the storage level; they can also belong to and participate in the solidity of an open structure of the metal framework type placed on beams fixed to the vertical walls or suspended under the ceiling.

 The storage level of the carousel can have two different configurations depending on the storage level considered. At an intermediate altitude level, there is the hopper 3 sparing the passage of the lifting system which passes vertically from the lower level to the outlet level. The passage hopper naturally constitutes an interruption of the raceway (s) 69. The latter are advantageously reconstituted by two eclipsable raceways 79 by vertical tilting (hinged flaps). In the rest position, the raceway elements are raised and do not interfere with the clearance gauge of the lifting frame which can then be operated. In this case, the corresponding level storage carousel is immobilized in translation. During an operation requiring the translation of the storage carousel, the tilting elements of the raceway 79 of the level in question are placed in the hopper in the running plane of the road under the effect of their actuator (jack or equivalent) ; the translation of the storage carousel is then authorized and the evolution of the elevator is then limited between the level concerned and the access level.

 The storage carousels are moved as above by linear actuators 71 of the jack type or equivalent, bearing on the infrastructure and ensuring the translation of the end or corner plate of the carousel, the latter then pushing the plates which previous. They can also be driven by a linear electric motor whose powered element, that is to say the inductor is fixed on the floor or the rolling track of the carousel, and whose armature, not wound, consists of a magnetic and conductive plate attached to each tray. In this case, the inductor (s) are supplied by fixed cables laid on the floor and conveying the electrical energy regulated by a fixed variator.

 Indexing of the positioning of the plate on the hopper before transfer is necessary. Thus, each storage level comprises, in line with the elevator hopper, a fixed locking and indexing device by movable finger 81 ensuring precise positioning of the plate and guaranteeing their perfect recovery in position.

 The operation of the installation is as follows.

 In the initial state, the reception kiosk is closed, the elevator is waiting in the lifting hopper, without tray, and the storage arenas are in the elevator passage position.

If the requested operation is a vehicle entry, the following operations are as follows
1- installation of the hopper raceway, movement of the storage device carrying the selected empty tray,
2- lowering the "open" lifting frame to the selected platform, transferred to the hopper,
3- Closing of the frame, locking and indexing by motorized lugs,
4- lifting to the access threshold,
5- Installation of the upper flaps and locking by blocking the knee pads,
6- unlocking of the lifting frame lugs,
7- locking of the platform by "half-opening" of the mobile longitudinal members of the lifting frame,
8- opening of the reception kiosk,
9- entry and positioning of the vehicle, on the platform,
10- user exit, closure of access and various controls,
11- return of the lifting frame to the "closed" position and installation of the latching and indexing lugs,
12- erasing the locking flaps, which on the one hand leads to the descent and stalling of an axle of the vehicle between two cross-members of the platform, on the other hand the bearing of the load on the lifting frame,
13- lowering the platform to its standby location at the right of the hopper
14- as soon as the descent is sufficient, closing of the screening panels of the access threshold,
15- removal of the tray on the relevant storage level of the carousel,
16- unlocking, then "opening" of the frame the control unit of the installation, connected to the various actuators concerned.

Claims (15)

 1- Vehicle parking installation, in particular of motor vehicles in urban areas of the type comprising:  - a common entrance (7) in the form of a closed garage equipped with an automatic door and a call and parking control for said vehicles, through which vehicles enter and exit,  a set of individual locations intended for the respective parking of each of said vehicles, arranged in an available space, formed vertically and in the vicinity of said common entrance,  a set of independent trolleys or trays (9), respective supports of each of said vehicles, these trays being all identical, in a rectangular format equivalent to that of the vehicles to be parked,  - A vertical transport system (5) of said carriages (9) able to move from the common entrance, through an opening or hopper (3) of dimensions substantially equivalent to those of the trays, formed in its floor, in control of said control , a selected trolley (9), in order to deposit a vehicle in a respective parking space or to receive it,  said control being able to be put into operation only by authorized users, characterized in that the transport system (5) comprises a lifting frame (23), vertically movable shaped to surround with low clearance the external gauge of the support plates (9 ) vehicles, provided with gripping means (33) of the plate capable of being controlled in engagement with the plate (9) or out of reach thereof, so as to take charge of the plate or to release it at the desired level .  2- Parking installation according to claim 1, characterized in that the lifting frame (23) essentially consists of a rectangular tubular frame of external dimensions complementary to those external of the plates (9) apart from play and whose height is substantially equivalent to that of the trays.  3- Parking installation according to one of claims 1, 2, characterized in that the lifting frame (23) is guided vertically in the hopper space (3) by conventional associated guide and lifting means, for example by pads on rails guide (37), and connected to traction cables (25) suitably arranged on its template for load balancing, according to a technology similar to that of elevators.  4- Parking installation according to one of claims 1,2, characterized in that the lifting frame (23) is raised by means of meshing with drive pinions on rack bars installed vertically on the height of the hopper.  5- Parking installation according to one of the preceding claims, characterized in that said gripping or gripping means of the plate (9) consist of latches or hooks suitably arranged on the periphery of the frame (23), for example at its corners , and cooperating with additional receiving screeds on the set.  6- Parking installation according to one of claims 1-4, characterized in that said means for gripping or gripping the plate (9) consist of elements of the support stop type (33) applying in service locally in locations (35) provided for this purpose on the plate.  7- Parking installation according to claim 6, characterized in that said means for gripping or gripping the plate consist of at least two associated tubular elements (33), controlled in transverse movement along the opposite sides of the lifting frame (23) and applied in service on complementary profiled wings (35) formed on the plate (9).  8- Parking installation according to one of the preceding claims, characterized in that each vehicle storage level comprises external actuators of the jack (71) or simular type, for orthogonal storage of the trays or with rotary rollers (14) for rotary storage of the trays, transferring the tray (9) from its reception area into the hopper (3) until it is brought to a selected location where it is identified, the frame (23) fading before moving , while the tray (9) is taken up in the hopper (3) by a tray take-up system (17, 79), controlled when the lifting frame is stopped and retractable for the passage of the lifting frame (23) or when the latter is controlled in motion.  9- Parking installation according to claim 8, characterized in that said tray recovery system (9) in the hopper (3) consists of an eclipsable path device (17, 79) with hinged flaps, capable of forming in a service position the continuity of path of the trays within the hopper and to be folded down in a vertical position leaving free passage for the elevator (23).  10- Parking installation according to one of the preceding claims, characterized in that it comprises a mobile parking structure in the form of a merry-go-round rotating with several storage levels (1), on which the plates (9) are deposited in determined identified positions, the arena being suitably driven in rotation, depending on their entry or exit and in connection with the vertical transport system (5).  11- Parking installation according to one of claims 1-9, characterized in that it comprises a vehicle storage structure forming orthogonal carousel (65) where the support plates (9) are moved one relative to the 'other, for example driven pushed one on the other by intermediate buffers, the plates being moved on a guide path (69) one after the other according to a circuit passing through the hopper (3 ) which constitutes the junction of entry and exit of the trays.  12- Parking installation according to claim 11, characterized in that the plates (9) comprise guide pads (67), for its translation on said circuit (69) carousel, suitably provided with rollers (75) and balls ( 73, 77) for its rolling on a rail or U-shaped path of said circuit.  13- Parking installation according to one of the preceding claims, characterized in that the support plates (9) comprise a central metal part (53) and two opposite longitudinal sections (35) connected by crosspieces (51) regularly distributed at the central part, each of the longitudinal sections being raised with respect to the crosspieces, as is the central part with respect to the crosspieces so as to constitute guide wings for the vehicle wheels, the wings of the longitudinal sections (35) receiving by their underside said tubular movable elements (33) of the lifting frame (23).  14- Parking installation according to claim 13, characterized in that it comprises a locking flap device (57) articulated at the top of the hopper, capable of engaging in service (in horizontal position) in the space between sleepers (51) of the support plate (9) to form a continuous raceway for the vehicle, and to be retracted (by vertical tilting) to allow passage to the lifting frame (23).  15- Parking installation according to one of the preceding claims, characterized in that the lifting frame (23) comprises retractable locking lugs (39) engaging in complementary housings of the plate (9) and making it possible to lock it in precise position.