FR2680144A1 - Structure of multi-function design, which can be towed, which is insubmersible or submersible, of modifiable dimensions and which can adapt itself to very varied terrain - Google Patents

Abstract

Multipurpose structure and its equipment rendering the unit multipurpose and extendable, capable of being adapted to highly diverse terrains and uses at any latitude. It can be towed, may be submersible or insubmersible, self-powered, self-propelled and have variable dimensions, and can be steerable, towable, hitchable, juxtaposable, manually operated, automatic or remote controlled. It can have variable, regeneratable autonomy, and be used in a mobile, dynamic or static mode. Said structure comprises a self-supporting, dismantlable, box and associated equipment (Fig. 3), fitted with direct or indirect drive motors, optional steering elements (Fig. 3, 7A, 11B), optional motors (Fig. 11, 11A), multipurpose sliding rack (7) (Fig. 6, 7, 7A, 8, 8A, 8B, 10), inflatable, protected, multipurpose lateral equipment (Fig. 8, 9, 10, 11A, 12B), modular, dismantlable and foldable equipment for use as a shelter or accommodation, double bottom for storing power sources and housing steering equipment (Fig. 1), conduits and cables, power regenerating equipment (Fig. 12E), module converting the structure to a self-contained vehicle.

Description

The subject of the invention is a versatile concept structure, towable, unsinkable or submersible, self-propelled, self-propelling, juxtaposable, couplable, couplable, of modifiable dimensions, directional, being able to adapt to very different terrains and uses under any lati-study of mobile, dynamic or static use, of manual, automatic or remote-controlled operation, of variable and regenerable autonomy, the choice of materials and their dimensions of which are compatible with the versatility of the structure and its equipment as planned.

The structure according to the invention is particularly intended for towed, towing, static or self-propelled use, for leisure, for professionals wishing to have a basic structure adaptable to their needs, by organizations concerned with having a homogeneous fleet but responding to specific uses (firefighters, large administrations, humanitarian organizations, scientific expeditions, municipalities, military ...

The structure according to the invention finds use both in industrialized countries and in developing countries, for individual or collective purposes.

 The current structures are not versatile. The towable structures are mainly trailers, the self-propelled or self-propelled structures are either vehicles or boats, the amphibious structures are not trailers, whose designs limit the use of equipment the use of which depends on the dimensions initials, and do not have the removable and interchangeable nature of the parts essential to a broad versatility.

 On the contrary, trailers, vehicles, boats or amphibious structures are often specific to the load they carry (boats, motorcycles, cars, passengers, specific equipment), solid or liquid materials on board.

This specificity considerably limits the use of these structures as far as their adaptation by modification of one or more of their characteristics to adapt to specific and / or different needs of the user is impossible. due to the monolithic nature of their construction.

None alone possesses the aptitudes of all.

The current structures are designed without taking into account the variable nature of their use (in time, place or purpose), and without being able to be equipped with elements which would facilitate and make reliable the conditions of use. The self-propelled, self-propelled and other characteristics of current multipurpose structures are limited in their initial state of construction without any real adaptation of the extended versatility.

 The state of the art can be defined by the following patents: - FR 2653736: versatile unsinkable trailer that can adapt to very diverse terrain, composed of a self-supporting body with a suitable profile of a direct drive motor or indirect, by one or more towing or propellant members, of means making it possible to adjust the ground clearance, of means for connecting one or more trailers to one another, of one or more compartments ensuring the buoyancy of said trailer, of a double partitioned bottom acting as a reservoir or compartment ensuring buoyancy, a sliding gallery with stand to access the load, a rigid unfoldable module forming a shelter.

- FR A. 1.580.844: the subject of the invention is a chest or container in the broadest sense of the word characterized by the fact that one of its dimensions is extendable by a swing so as to provide in all cases the desired useful volume.

One of the embodiments of the invention leads to the production of a luggage compartment made removable from its support by a quick and portable fixing device thanks to the appropriate gripping members with which it is provided.

- FR.A.2.501.601: this gallery for a motor vehicle is made in one piece or consists of two independent transverse bars. Each bar comprises a fixed element, mounted on the sides of the vehicle by means of fixing lugs. On the fixed element is slidably mounted a movable element intended to receive the load. The mobile element can be centered on the fixed or laterally locked element. This last position, in a side overhang facilitates loading or unloading operations, especially in the case of heavy and bulky loads: skis, bicycle, boat - FR.A.2.596.344: this device comprises a fixed support mounted on the roof of the vehicle, which consists of a series of transverse rails; on this support is fitted a movable frame comprising transverse profiles which can slide longitudinally on the rails; each of the profiles carries at one of its ends an articulated link which is provided with a follower member retained and guided in translation by the associated rail. This device which facilitates the loading of the gallery is particularly suitable for equipping tall vehicles, such as caravans.

- FR.A.1.463.585: Habitable vehicle as a vehicle trailer, intended for temporary stay, for example for camping, study trips, topographical measurements, construction and repair work in undeveloped regions, vehicle characterized by that it is composed of several assemblable and dismountable elements on which or in which are arranged the installations necessary for the needs of the occupants, these elements being fixed in a removable manner on a trailer chassis. The elements fixed on the chassis include a floor piece which can form a single unit with the chassis, a front wall and a rear wall, two side walls and a roof, these elements being interconnected in a removable manner by means of assembling and fixing members.

- FR.A.1.594.113: the invention relates to a habitable trailer for a motor vehicle, comprising an adjustable roof, extending above almost the entire body of the trailer, using which can modify, at will, the interior height of the trailer, the latter being remarkable, in particular by the following characteristics considered separately -ment or in combination: a) the roof is connected to the body of the trailer by a quadruple articulated chain system , while the vertical walls, engaging, at least, on the front side on the trailer body and on the roof, serve as spatial limits, the said body being arranged as a frame and the roof as an element of 'coupling.

- FR.A. 1,578,798: the present invention relates to a device of articulated panels such that after pivoting they offer the appearance of a habitable volume because waterproof. The set is practical and quick to implement.

It can be adapted on vehicles such as camping trailers. It offers, in addition, advantages of lightness, a quality of less bulk.

The panels are designed in such a way that the assembly is held without the aid of additional supports thanks to the vertical articulations. In addition, sealing is ensured.

- FR.2.087.093: removable and transformable system allowing the transport of a habitable road trailer suitable for river navigation. This boat consists of three basic elements. A front element provided with a movable panel allowing boarding, one or more intermediate elements and a rear element equipped with the propellant (s). The assembly obtained by cables or bars connecting the front element to the rear element. The invention intended mainly to be used as a pleasure craft should allow the many owners of caravans to access river tourism by combining boating and caravanning.

- FR.A.597.063: boat trailer forming an extendable pontoon characterized in that it comprises: a) a boat part formed by a hull with a hollow for the passengers or load and floats the top of which forms a bridge capable of receiving and support or transport a habitable unit. b) an extendable part, foldable on the deck with float forming a complementary area of evolution. c) a chassis with undercarriage that can be detached from the boat part when it is launched, d) an apron for fixing a nautical engine. f) a manual or electric winch to facilitate loading or unloading on the deck and unfolding and folding of the extendable part. g) a drawbar with a classic coupling ball. h) a peripheral pontoon safety device by net or rope stretched over removable posts.

- FR.A.2.489.764: a folding starter caravan which includes a frame mounted and articulated on a trailer and covered with a tent canvas.

The frame is symmetrically made up of two substantially identical groups of elements hinged together, each group (sleeping platform and hoops) being mounted and articulated on a longitudinal edge of the trailer body, and by roof elements hinged together and on the top of the innermost element of each of the said groups, thus connecting these two groups, the unfolded caravan floor (bottom of the body and trays) being entirely raised relative on the ground. The armature is replicated on top of the trailer body by folding down first the first group of elements, then the second group of elements, the roof being simultaneously folded between the two groups.

- FR.253.348: folding device intended for raising a vehicle or a passenger compartment.

- FR.A.2.569.437: device of a folding and modular living cell.

THE DESIGN OF THE TRACTABLE STRUCTURE CONSISTS OF:
A self-supporting body in two main parts with an adapted profile.

 The self-supporting assembly with an adapted profile takes into account the difficulties inherent in progress in difficult terrain.

1 A removable FRONT PART can be of variable dimensions, which while ensuring the tightness of the assembly, will be chosen according to the desired length and the volume of the various equipment housed inside (energy production , winches, transformer, command receivers, etc.)
This front part, preferably bolted, may or may not have a rear partition. Indeed, the volume thus available constitutes, after assembly to the rear part of the structure, a compartment which can receive different equipment, ensuring, in addition to energy production necessary for the traction or propulsion of the structure, those necessary for the functioning of internal or peripheral equipment deemed useful (motors, pumps, transformers, alternators ...)
In the latter case, the orifices and connections are provided to correspond to the orifices and connections going towards the rear part of the structure.

The front part can receive, according to the wishes of the user, one or more wheels, serving as an additional support point, driving and / or directional. The interchangeable nature of this front part therefore allows:
- A modification of the general dimensions of the entire structure.

 - A choice of corresponding equipment more suited to the needs of the user.

 - A choice of inclination of the front apron sometimes corresponds to a more specific use of the structure.

 - Easy repair since the damaged part of the structure can be repaired separately or replaced.

At the front part, the front apron is inclined forward, has attachment points for the drawbar, as well as a fixing point located at the lower part, in the middle position which allows hooking following the others a set of two structures coupled the rear faces opposite. At the upper part, a cover, hinged to access the interior volume, can either be horizontal in the same plane as the cover of the rear part, or be tilted forward depending on the chosen use.Are provided, the necessary orifices for the exit of a cable, the emptying and cleaning of the interior volume, as well as the electrical connections and other commands (passage of the brake commands, commands leading to the, or the, wheels fixed in front.)
The front apron receives the fixing points for the drawbar, and those intended to receive external equipment (wheels, fixing of simple towing element.)
The front apron adapts to the ventral apron of the rear part of the structure according to a rounded, folded, curved or molded profile.

2 THE REAR PART CONSTITUTED a) The ventral apron of the rear part constitutes the protective element of the structure in difficult terrain, carrying in the liquid element or when the structure must slip (snow, ice). Depending on the case, the supporting role is supplemented by the addition of floats, or the addition of skis.

The ventral apron serves as a support for the attachment of the axle (s).

The ventral apron is connected to the rear apron according to a rounded, folded or curved profile, facilitating the sliding of an obstacle which would strike or land under the rear overhang when the structure progresses forward or to facilitate progression of the latter in reverse.

b) The adapted sides conforming to the profile of the front parts, the ventral apron and the rear part.

These sides constitute in fact a lateral protection including wheels located inside the passages provided for this purpose.

These sides, depending on the choice of equipment in the structure, comprise at the lower part and at the rear, the outlets for the flow of liquid used for propulsion in liquid medium, as well as the openings for installation and use of systems for changing the direction of liquid flow ejection.

Likewise, these sides can receive the fixing points of the additional floating elements. The upper part of the sides is profiled so as to constitute both a reinforcement contributing to the rigidity of the assembly, and lateral rolling paths for the sliding gallery.

Note that the lower edge of the sides is connected to the ventral apron with an upward offset of the plane thereof in order to constitute a lip which allows it to be used as a support for fixing to other equipment hard elements conforming to the profile of the lip in order to avoid its premature wear in the event of intensive use on snow or ice for example) by welding, by screwing, by riveting, by gluing (fixing of skis for example).

In addition, these sides receive on their external face the fixing points allowing the lateral installation of a set of flexible structures, which can contain a fluid under pressure (air, water, fuel or other liquids
The latter are secured to a removable protection, itself secured to the sides of the structure by means of fasteners articulated to the lower part of the side.

This assembly achieves, in the folded position against the external wall, a reserve of fluids integrated into the profile of the structure and of a reduced bulk, giving it additional possibilities of versatility and adaptability without compromising the not very vulnerable character of the assembly. of the structure.

In addition, one-sided use, as an additional float, is possible when the structures are coupled side by side and two by two.

Beyond this number, provision may be made to use the folding panels provided on the cover to make a rolling path on structures bilaterally using the additional floats.

The "open" position is obtained by rotation of the protective element around the axis of the articulated fasteners.

This position can be obtained by filling the flexible structures, after unlocking the fasteners provided to keep the assembly pressed against the sides. A limitation of the opening angle can be obtained by a strap, a cable or a compass.

The use of these side assemblies can be applied:
- As additional floats by inflation using a gaseous fluid. In the inflated configuration, the protective element is then held facing the plan of evolution of the structure by the pressure of the float.

The load capacities are then significantly increased, as well as the stability of the assembly while having effective protection of the most exposed part of the float.

 Note that this configuration brings identical advantages if the structure is used on snow.

 - As additional tanks for liquids.

In this case, the partitioning of the inflatable structures may allow their partial use as additional floats.

Similarly, the rolling capacities of the structure remain if the increase in load is taken into account during its movement.

At a fixed station, this reserve of liquid will be assessed either to increase energy autonomy, or to significantly increase, for example, the capacity of the structure in tank version. In the latter case, the emptying of the flexible structures by vacuum causes the automatic retraction of the protection; thus keeping these structures safe (use in a fixed position in a risk zone of the structure for firefighters in the fight against fires.)
- As a ski after dismantling the inflatable structures and detaching the protective element from the side. This element can then be secured to the axle, in place of the wheels by means of supports, one end of which attaches to the wheel drum studs and the other end to the fasteners provided for this purpose located on the protective element, on the face normally facing the inflatable structure.

In addition to the versatility of this protective element, this fixing system allows all the suspension and damping functions to be preserved.

The upper and lateral edges of the sides are profiled in order to receive the cover, to receive the means for sealing the interior volume, and constituting the running path of the gallery, and allowing the fixing of the lateral panels of a rigid foldable module such provided that.

c) The rear apron:
Consisting of a rigid part on which is hinged a removable door facilitating rear access, without compromising the tightness of the assembly.

This rear panel has fixing points, including one at the lower part in the middle position, and allowing:
- To couple the structures, rear faces facing each other, while keeping - in place and place the rear door of each of them, thus guaranteeing the watertightness of each structure.

These attachment points will have their number and their location chosen as a function of the resistance capacities to the stresses generated by this ac-coupling, and of the characteristics of the materials chosen for the construction of the structure or of the reinforcement methods adopted.

Note that the fixing points located near the upper corner will preferably be in the extension, and according to an adapted profile, of the gallery runway in order to receive and support the two gallery wheels when it has completely slid backwards, thus allowing, without hindrance, the opening of the trailer cover, and the transfer of the gallery from one structure to another when coupled rear side facing (for load distribution. )
- To hang, in particular thanks to the fixing point located at the lower and middle part, the structures one after the other whatever the element or one wishes to make them evolve, without modifying the characteristics general of each of them.

Appendices are provided, according to the same principle as those provided on the front panel, in order to be support points for the gallery when it is housed inside the volume and thus distribute the forces.

The rear apron receives an electrical outlet allowing the electrical connection of a structure attached to it.

d) The front is connected to the sides by following their profile and to the ventral apron.

On the internal face are provided appendices serving as support points for the gallery when the latter is housed inside the rear part, this in order to distribute the forces.

This front part comprises the necessary and corresponding orifices for the passage of the commands coming from the front part, as well as the points or orifices necessary for securing the front and rear parts of the structure.

e) The cover:
Of an identical or different material from the rest of the structure, it is provided with an adapted profile, to allow:
- The closure of the interior volume of the rear part of the structure.

 - Sealing, and depending on the case, the transformation of the interior volume into a tank.

 - Receive, thanks to the space provided between its external face and the opposite face of the gallery floor, a foldable, rigid, flexible or semi-rigid structure, which can be deployed when the sliding gallery has been removed.

Note that rigid panels, or armatures, removable, supperposa -ble, articulated and integral with this cover, can find their place in this inter-face space in the folded position, and offer, after deployment, a suitable surface proportional to the surface chosen so-called pan -neaux.

The stability of these panels is ensured either by stands, or by rigid connections between their outer edges and the fixing points provided on the sides or fixing points at the lip of the lower edge of these sides.

This system provides both:
- A large covering surface (heatable or air-conditioned depending on the equipment chosen).

 - Insulation from the ground (small animals, humidity) including electrical if the crutches used are not conductive.

 - Access to the interior volume of the structure (rear door).

 - From the adjoining surface of the gallery at functional height.

 - To have a fixed position on the ground, after removing a covered surface, while keeping the use of the towable structure, with or without the gallery. All easily reassembled and moved.

Note that the elements of an adaptable rigid and foldable module can be stored in the bottom of the structure, can adapt to the edges of the neck -lock, to form a shelter whose cover serves as a floor. The gallery can be housed inside, or kept in the outward position, thus offering an available and functional terraced surface.

f) The lower part, facing the internal face of the ventral apron, consists of a doubling of the bottom obtained:
- Either by fixing the double bottom by bolting, screwing, gluing or welding, at a variable distance from the bottom, depending on the chosen use (liquids, batteries for storing electric current, installation at the rear of a winch, equipment directional and propulsive.)
- Either for fixing a double bottom in the same way as above, but with the longitudinal positioning, in the middle position, of a bolted, screwed, glued or welded profile, on the internal face of the ventral apron and intended at:
- Increase the longitudinal rigidity of the assembly.

 - Serve as a partition with a double bottom when it serves as a reservoir for liquids or of volume increasing or guaranteeing the buoyancy of the whole. In these cases, the perforation of the ventral apron would only affect part of the volume, thus guaranteeing the integrity and use of the content of the remaining volume.

 - Spare the space necessary for the passage of a cable from the front part, or the cable of a winch located at the rear and intended to be able to exit at the front of the structure.

 - Keep the space necessary for the passage of one or more pipes carrying the liquid used for propulsion if the choice of positioning of the turbine is at the front.

 - Keep the space necessary for the passage of the movement control or transmission system (s) (electrical cables, sheaths for control cables, control linkages, drive shafts).

Note that this space thus provided can also be obtained by a profile adapted from the bottom of the ventral apron. In this case, and in order to preserve the uniformity of the plan and of the external face of the ventral apron, it may be added a protective plate made integral with this face and removable, thus making accessibility to the space thus provided and the elements it contains.

Finally, the front part of this space adapts to the interchangeable front part of the structure.

These different solutions do not modify the general characteristics or the possibilities of adaptation of the structure.

This double bottom preferably contains the propulsion and directional mechanisms used to advance the structure in a liquid medium.

Indeed, preferably at an outlet of the liquid flow at the lower part of the transom of the structure, which would penalize the propulsion of an assembly coupled with rear faces opposite, and preferably with a directional system placed on the rear apron (unusable in case of coupling as mentioned above, or fixed laterally, because vulnerable, impractical, even unusable), an outlet of the propellant liquid flow will be installed in lateral and rear position, the latter then participating in changes of direction desired thanks to a system modifying the direction of the flow which can also reverse its direction.

An outlet of the propellant flow as well as the mechanism allowing it to be directional and to reverse the thrust, will be arranged on each side of the structure.

The angle of the flow exit axis with respect to the longitudinal axis of the structure will be calculated so that the result of the propelled forces of the lateral flows minimizes the power loss
This solution makes it possible to use the self-propelling capacities of all the structures when these are coupled in any way.

In addition, the double bottom contains the entry of the liquid used for the propulsion.

Indeed, preferably to a liquid inlet located at the front of the structure, which would defuse if the structure rears or if its speed of progression led to planing, this inlet would be all the more exposed to shocks, therefore, entrances located further back will be chosen, at the base of the wheel arch surface.

This positioning allows:
- To always be well protected from the shocks inherent in the use of the structure in difficult terrain, snow or ice.

 - To be below, all or part, of the flow line -taison, and in all cases sufficiently in the liquid element to obtain a priming phenomenon.

 - To be insensitive to the phenomenon of nose-up or de-tacking.

 - To limit the pressure losses caused by longer pipelines.

 - To be easily accessible.

Note that even in reverse, the dosage of the direction of thrust of each of the liquid flows makes it possible to be directional as well for a structure evolving in isolation as for a coupled assembly, including with the additional buoyancy arrangements.

g) System allowing the orientation of the liquid flow, including reverse thrust.

This system has the originality of being placed laterally, retractable, and integrated into the structure, therefore without modifying the characteristics and the possibilities of the structure.

The propellant flow is deflected by the displacement of a part having a curvature at an appropriate angle, which is placed opposite and in the axis of output of the flow.

This part is inserted into a support, the assembly being able to come out of its housing provided in the structure, either according to the principle of the sliding drawer or by rotation about an axis.

The greater the deflection of the flow, the more the lateral thrust generates a significant change in direction.

Beyond a deviation whose angle exceeds 90, with respect to the longi-tudinal axis of the structure, there is inversion of the thrust, up to the point of obtaining a direction of thrust of the flow parallel to the longitudinal axis of the structure.

These independent systems, installed on each side of the structure, give it excellent maneuverability. This maneuverability remains even when the structures are coupled.

Note the possibility of using the self-propelling capacities of each structure even when coupled, the flow outlet and the flow orientation systems being located below the system of additional floats.

Finally, structures whose dimensions, or use would not be penalized by the terms of use that led to choosing lateral and bilateral flow outlets, can very well be equipped with water inlets located more towards the front, single, or multiple, or simply receive on the transom a more traditional outboard motor, or the shaft of a propeller fixed to the structure (the passage of controls and movements being sufficient as provided for by the 'invention.Ref: paragraph n 2, f, longitudinal section) h) Traction systems by front and rear cables which can tow the structure in both directions, making it possible to relieve the pushing forces generated by the current of a stream on a set of coupled structures, and to set it up from an initial position against the bank in the axis of the current.

This system can be made more efficient thanks to the fixing points provided at the front and rear of the structure if they are equipped with deflection pulleys for the purpose of reeving the cable.

This system can be operated as desired:
1) By a winch placed in the front part of the structure.

 2) By a winch placed at the rear of the structure.

In these cases, (1 &), the possibility of using both an outgoing cable at the front to tow forward, and an outgoing cable at the rear to tow back requires:
- Or the installation of two independent winches (1 per cable).

 - Or a single winch with two cables each winding on a drum that can be detached from the axis of the drive motor.

Note that remote control equipment, as provided for other equipment, allows a minimum of staff to set up a rolling path obtained by coupling the structures, even under difficult conditions (corns of strong current).

i) Axles and adaptable parts:
Single or multiple, on the basis of a suspension that can use the existing systems (torsion bar, compression of flexible material (rubbers) helical spring ... etc) associated or not with shock absorbers.

The end of the axle axis on the wheel side is preferably grooved, threaded and / or drilled for the installation of a pin.

The light at the end of the lever arm receiving the axis of the wheel is itself grooved to slide in the grooves of the axle.

The thread provided allows to secure the assembly. After disassembly, and by rotation of the lever arm around the axis of the axle, it is thus possible to modify the ground clearance, to erase the lever arm relative to the plane of the ventral apron, or to remove it completely.

The wheel axles can receive a direct drive motor (electric, hydraulic), or a toothed crown (chain drive), or a pulley (belt drive).

Note that the wheel hubs are disengageable.

The braking system is provided by manual, automatic control (inertia brake), coupled to the towing vehicle, with the possibility of disconnection at the wheel.

3 THE TIMON:
The removable drawbar consists of an assembly in at least five parts.

This set is intended to:
-Allow to be fixed to the front part of the structure in all its variants.

 -Allow the installation of one or more wheels as provided, fixed to the front part of the structure.

 -Allow its adaptation on the fixing points provided at the rear of the structure.

 -Allow, after dismantling, to use the parts to couple the structures between them.

Note that the removable upper arm connecting the attachment point located to the upper part of the front part consists of:
- Either of two rods threaded at the opposite end, connected to each other by a piece with suitable threading, allowing the total length to be varied. We obtained aimsi a modification of the height of the end of the drawbar to adapt it to the attachment point of the towing vehicle, or to obtain a coupling of several structures in the same plane.

This system can be replaced by a cylinder fulfilling the same adjustment functions, and which can be used, if necessary, to give the structure a bucket function.

The two lateral arms of the drawbar can be in one piece, or consist of two sliding parts, adjustable in length, used to couple several structures.

Indeed, the distance between two structures coupled side by side varies depending on whether or not the additional floats are used. The self-propelled character and the other characteristics of the current multi-purpose structures are limited by their initial state of construction without adaptation really widened.

The fixing points located at the ends of these arms are articulated.

Note that these arms can serve as a passage, in their light, to the different sheaths of the brake controls, or of the electric cables coming from the towing vehicle, or from the above structure.

The part of the drawbar which receives the attachment points of the three arms is articulated with them and receives the arm which connects to the towing vehicle, or to the preceding trailer.

A means of attachment to the upper part allows, after total or partial disassembly of the upper arm, to keep the rest of the drawbar in the raised position, thus limiting the space requirement when using the structure in self-propelled use.

4 EQUIPMENT:
A) MOUNTED above or below the plane of the rear cover:
These devices are characterized by the fact that they are interchangeable, adapted as appropriate to the specific needs of the user, increasing the possibilities of the structure while retaining the versatility of the structure and its intrinsic qualities.

This equipment can be either:
- Installed above the cover.

 - Installed in place of the cover.

 - Installed in the interior volume of the rear part of the structure.

These equipments can work:
- Either independently.

 - Either from an external energy source: connection to the towing vehicle, auxiliary motor, mains current (compatible or made compatible (transformer).

 - Either from the sources of energy supplied by the initial equipment of the structure and its means of energy autonomy (fuel, electric storage batteries, housed inside the structure).

 - Either by mixing the different possibilities above.

a) Installed above the cover, either:
- A gallery whose sliding character does not prevent an easy opening of the cover thanks to the profiles of the fixing points provided on the transom and which constitute an extension of the runway.

The height of the gallery floor is at a height sufficient to allow use of the space thus provided between its lower face and the upper face of the cover in regarg. This space can thus be used to accommodate the folding panels as described above (see the cover paragraph), or to accommodate a flexible shelter and articulated frames.

Note that the component parts, removable, of the floor, can be fixed to the upper part of the uprights in order to place against and in ragard of the lower face of the cover when the gallery is housed inside the trailer.

These removable elements are made of sections of ferrous, non-ferrous or synthetic materials, whether or not combining a wooden part, but are sufficiently resistant to participate in the resistance to the forces applied to the cover.

This gallery, housed inside, rests on the wheel arches, and on the appendages provided on the internal faces of the front and rear panels of the rear part of the structure, this in order to participate in the rigidity of the assembly, and to a balanced distribution of efforts, over the entire structure.

Similarly, it can receive the frame of a tarpaulin that protects its load or one that would use the interior volume of the structure (after removing the cover and the components of the gallery floor, the latter remains in place on its rolling path). In the latter case the cover can be used using the lower lip on the sides of the structure. Finally, note that the fixing points provided at the upper part of the transom, as well as those already provided on the sides of the rear part, can be adapted to the anchoring points of the gallery so that it can be fix it and thus have an access ramp function, either from the rear of the structure, or laterally.

 - Specific or standard equipment (containers) using the surface, the load capacities of the runway, preferably removable because of their specificity, interchangeable.

This equipment can vary depending on the users, whether civilian or military, connectable to the other equipment provided for the structure.

The space with the upper face of the cover can then only be virtual.

Note that the use of the gallery, as described above, and housed inside, allows, while retaining the tank function at the rear of the structure, to create inside said tank a vacuum from a vacuum pump, without risk and this at the end of filling (EX: pumping of liquids with a high concentration of foreign elements, incompatible with the use of a conventional pump.).

b) Installed in place of the cover:
These are specific pieces of equipment which, as a general rule, do not require the same removable facilities, but the user of which appreciates the general characteristics of the structure.

 c) Installed in the interior volume of the rear part of the structure: 1) These equipments can rest, directly on the floor, or / and use the wheel arches, by marrying them or not.

These equipment thus housed are fixed on a frame whose dimensions are compatible with that of the interior volume which receives them, retains their removable and interchangeable character, can be fixed laterally on the upper edges of the sides of the structure.

This applies in particular for equipment which requires that the assembly thus formed with the structure has a center of gravity as nasally as possible, or whose height of the assembly is limited by the site of use (basement for example).

2) These devices are those of a foldable rigid structure.

They are all compatible with the internal dimensions of the rear part or they can be stored and transported.

The lateral sides of the rigid structure deployed may not receive the panel provided uprights on these sides can then be joined with an identical structure placed in a terraced manner. The same goes for the rear part.

The desired volume is thus obtained by arranging as described the number of structures required (field installation; base camp; field hospital).

Note that these elements are also compatible with the dimensions of the gallery, the interior volume of the structure then being available in full.

 B) Related axles, suspensions and equipment.

Intended for driving the rear wheels in order to provide the structure with motor capacities aiming to participate in its progress when it is coupled to a tractor vehicle, under difficult conditions, and to enable a source of movement to be obtained for outdoor use example: drive of a transmission part fixed in place of the wheel). The sources of movement are multiplied by the number of wheels and are independent of each other.

This training can be obtained by:
- Either direct drive by means of a motor integral with the wheel carrying axle (electric or hydraulic motor).

 - Either an indirect drive obtained from a transmission of the movement using a belt or chain, a shaft, or combined.

In this case, the engine can be placed either in the front compartment. The transmission is made by a shaft to the wheel drive mechanism, either housed inside the rear part, this proximity allowing the direct drive of the belt or chain.

Note that the use of the disengageable hubs avoids the setting in motion of the drive means during the use of the structure in towed use.

In self-driving mode of use, the type of drive selected is coupled to a selective braking mode of, or, of the right or left wheels. Directional power is thus obtained by rotation around the axis formed
by the wheel or wheels kept braked.

The front wheel, in this case, remains free around its vertical axis, and accompanies the movement.

The rear wheel drive system can be used to drive an alternator. This disengageable drive can work:
- manually and be used to recharge storage batteries when the structure is towed,
- automatically by connecting the braking mechanism of the structure to the clutch system driving the alternator. This solution saves substantial energy.

Note that the front wheel (s), equipped with a similar drive system, and remain pivotable 360, thus allowing:
- to participate alone in changes of direction
- increase the motor skills of the whole
- to progress in reverse if the rear wheel motors do not have an inverter.

This assembly can be mounted on an articulated and / or retractable arm allowing it to be housed against the front apron in the high position, or all or part in a space provided within the interior of the front compartment of the structure.

Finally, depending on the intended use, two wheels can be installed at the front, but more laterally can improve the weight distribution as well as the stability of the entire structure.

 C) Intended to facilitate the progression on snow: -Requires the removal of the wheels.

This equipment incorporates the protective element of flexible structures attached to the lateral sides of the structure.

This protective element, the front edge of which has a curvature, is provided in its middle part with fixing means for a part connecting this element to the fixing means of the rim of the wheel.

The length, surface and rigidity of this element not only makes it possible to raise the entire structure on supporting snow or ice, but also and above all to retain the advantages provided by the suspension, while retaining the ability to evolve in deep and soft snow since the external face of the ventral apron then comes into contact.

 D) Intended for controlling the various equipment: a) - Either from the front part of the structure, by conventional instrumentation placed inside and / or outside (engine; pumps; winches or other specific equipment) This location will be chosen so as to be protected from shocks.

b) - Either remotely by mechanical transmissions (sheathed cables; rigid articulated triangles), electrical, optical, or radio electrical.

The radio control options will more specifically meet the specific needs of certain users (scientific expedition, firefighters, military.) C) - Note that the connections provided for mechanical, electrical or optical controls (optical cables) above all aim to allow positioning of the control station according to use or nearby human presence is necessary:
- Use in difficult terrain.

 - Use on the liquid element.

 - Use of coupled structures.

 - Use for professional purposes.

 - Use as a vehicle.

E) Intended to transform the structure into a vehicle:
The transformation of the structure consists of the installation of a control unit in place of the gallery.

The latter removed, or stored inside, is replaced by a control unit that can accommodate one or more people.

After having been fixed above the cover, the braking start, direction change and signaling controls are connected as provided above (paragraph 4 D / c).

The front part of the structure, for this variant, is designed to receive lighting, signaling and registration equipment as defined by legislation. Likewise, this part can be made so that its cover is tilted forward at a selected angle facilitating vesibility at the immediate front of the structure and / or extending into the profile of the control unit. .

When the control unit is fixed to the cover, the assembly can be raised to access the interior space of the rear part of the structure.

Note that the general characteristics of the structure are preserved as well as those related to its equipment.

This variant allows:
- To develop in urban areas the use of a captive fleet whose base (ie the structure, its equipment and its versatility) remains usable for purposes other than that of transporting people. (Technical services urban, rental to individuals for professional use (firefighters, etc.). This allows a significant reduction in investment and maintenance costs.

 - To develop a vehicle usable on water in countries whose areas are regularly flooded.

 - To reconsider the specificity of the modes and means of deposition when there are both terrestrial supports and aqueous supports.

Finally, the use of additional buoyancy equipment can be triggered automatically if the use or the legislator wishes to have a particularly stable and safe structure.

In this case, the inflation and deflation of the flexible structures is carried out using an air pump, triggered for example by a switch actuated by the pressure of the water to cause the inflation. Deflating by vacuum at the pump takes place when the water pressure on the switch ceases. Valves limit or stop the action of the pump at the desired level of pressure or vacuum by setting the valves.

F) Equipment intended to use renewable energies:
This variant is intended:
- To compensate for the energy losses linked to a long period of non-use (electric battery used to start the thermal engine; battery supplying the radio-control receivers).

 - To have a source of power for electric storage batteries (use of fixed and isolated post structures: scientific expeditions, for example).

 - To extend the initial energy autonomy.

This variant uses the available surfaces:
- The front part cover. The available area, although relatively small, is generally always available.

 - Foldable panels provided on the cover of the rear part of the structure (see rear part paragraph e).

Indeed, thus used, these panels are particularly well protected in the folded position.

The use of the surfaces of the covers of the front part and the folding panels of the rear part are particularly suitable for the production of electricity, equipped with photoelectric cells.

A variant uses the surfaces named above as solar collectors for hot water production. The water thus heated can be stored in the volumes provided for the storage of liquids. This variant will be particularly suitable for leisure use of the structure.

Another variant uses the existing fixing points inside the structure to maintain a mast receiving an electric generator driven by the wind (wind turbine type). This variant is preferably suitable:
- Users who cannot use the side panels as a collection surface.

 - To users located in areas with low sunshine or with high abrasive power from the wind (air plus sand).

 - For energy-intensive uses.

The attached drawings are given by way of indicative and non-limiting examples. They represent a preferred embodiment according to the invention.

They will allow the invention to be easily understood.

Figure 1 is a schematic view, side view of the rear part.

Figure 2 is a schematic view, side view of the front part.

Figure 3 is a schematic view, side view according to Figures 1 and 2 of the towable structure.

The towable, unsinkable, modular, versatile structure, adaptable to the supports of its evolution, tends to solve these problems.

To this end, the structure, considered basic, according to the invention is composed of different integral parts making a self-supporting body with an adapted profile.
This structure is designed to receive the various equipment making its adaptation to various uses, usable alone or together.

Said structure is composed:
-Of a main front part receiving the equipment necessary for the direct or indirect drive of the equipment provided, fixing points including those of the drawbar, the attachment points of the wheel or wheels located at the front, the connections of the controls and other cables.

This part contributes to the buoyancy of the whole.

 -A main rear part consisting of: .A waterproof compartment contributing to the buoyancy of the whole.

.A double partitioned bottom serving as a liquid reservoir and containing a stiffening element in which the passages for the various controls and pipes are provided.

.Fixing points, on the rear apron fitted with a door, on the sides on the front bulkhead.

.A hinged cover provided, points for fixing the folding panels, fixing points for a folding frame supporting a tent with suitable dimensions, fixing points for adaptable equipment.

 .Side in the extension of the sides of the front part, serving as lateral protection, provided with fixing points to secure the additional buoyancy equipment and the supports of the cantilevered parts (foldable panels of the cover, rigid foldable module).

.The lower edge of the sides creates a lip along the longitudinal axis.

 -A sliding gallery, separable from the structure used -ble as an access ramp or as a structure for distributing the forces exerted on the cover. It receives the removable frame of the cargo space cover.

 -A drawbar made up of five main articulated removable parts.

The arm connected to the upper part of the front apron is adjustable in length and fitted with a bolt to give the structure a bucket function.

The lateral arms are adjustable in length to allow:
Adaptation to one or more front wheels
The coupling of structures between them.

- Adaptable and versatile equipment:
Foldable flexible lateral structures can act as additional floats, or as a liquid reservoir or ballasts.

Flexible foldable module
Rigid foldable module
Driving module
Natural energy use systems
Propulsion and steering systems.

The design of the structure consists of: - A self-supporting box with an adapted profile taking into account the inherent difficulties:
- Progress whatever the medium of evolution (solid or liquid).

 - An increase in the capacities of the basic structure depending on the environment and the conditions of use.

- Adaptable, dismountable equipment, usable alone or together without compromising the basic qualities of the basic structure.

The various constituent elements of the basic structure are assembled in order to ensure the rigidity and the tightness of the assembly, in a manner compatible with the nature of the materials used.

The shape of the structure allows:
- Solo use
- Coupled use: in this case, with or without equipment on solid or liquid support, the capacities of the assembly are proportional to the number of structures used.

The concept according to the invention gives the structure a basic function for versatile use as a towed or self-propelled mobile, couplable, with or without equipment, of modifiable dimensions, of specific standardized modules, and as an installation. static responding to specific functions within the framework of a preserved versatility.

This is how the concept of the structure allows it to: 1) Progress on difficult terrain thanks to the profile of the front and rear overhangs, and to the de facto protection of the ventral apron and sides.

2) Not being dependent on a towing vehicle to overcome difficulties in difficult terrain or to position themselves dynamically with respect to a fixed point in liquid medium (winch with front and rear output).

3) Adapt the basic structure to specific uses, change the damaged front part, reduce the costs of a park thanks to the interchangeable character of the front part.

4) See modify the load capacities, stability, autonomy, functions.

 Respond to needs in both industrialized and developing countries.

5) Self-propel with directional power on the wheel or on the liquid element.

6) To constitute assemblies for mobile or stationary uses.

7) To receive direct, proximity or remote control means.

8) To be used in an underwater environment.

The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention.

They will allow the invention to be easily understood.

 - Figure 1 is a schematic view, side view. This view highlights the rear part, the fixing points, the double bottom, the orifices.

- Figure 2 is a schematic view, side view. This view highlights the dismantled front part, the adapted profile and the fixing points.

- Figure 2 A is a schematic view of the disassembled drawbar, split into its dif -ferent constituent elements.

- Figure 3 is a view according to Figures 1,2 and 2 A, showing the structure after assembly.

- Figuer 4 is a view according to Figure 3 showing the positioning of the sliding gallery.

- Figure 5 is a view according to Figure 4 plan view - Figure 6 is a view according to Figure 4 or the structure is viewed from the rear.

- Figure 7 is a side view showing two structures connected together rear faces opposite. This view highlights the displacement of the gallery of one of the structures, and the position of a gallery inside another structure.

- Figure 7 A is a side view of two coupled structures or the protective elements shown in Figure 8, are used as skis.

This figure shows a side view of the gallery with the reinforcements of the protection of its cargo space.

- Figure 8 is a rear view showing two structures connected together side by side with positioning of the gallery inside and elements of its floor in the high position. This view also shows the positioning of the lateral equipment.

- Figure 8 A is a side view showing the tent and its foldable frames in the open position after release of the sliding gallery.

This side view shows the gallery in the ramp position from the rear.

- Figure 8 B is a view according to Figure 4, showing the sliding gallery resting on the support of the transom to clear access to the cover.

FIG. 9 is a rear view showing the tent according to FIG. 8 A and its extension after side panels hinged to the cover.

This view shows inflatable side equipment acting either as additional floats or as liquid tanks.

- Figure 10 is a front view of two connected structures, with their lateral equipment, showing the use of the structures as a tray and the use of a gallery as a lateral access ramp.

- Figure 11 is a side view showing a variant of the structure with two axles, with a front part fitted with driving or non-steering wheels. This view shows schematically the installation of a control module fixed to the upper part of the rear part of the structure.

- Figure 11 A is a view according to Figure 11, front view. It shows the front part of the structure when it is used as a land vehicle equipped with lateral equipment usable in amphibious use to increase the stability of the whole.

- Figure 11 B is a view according to Figure 11, side view. This figure shows the articulation of the cover supporting the driving module, allowing access to the interior volume of the rear part.

- Figure 12 is a rear view of the foldable and removable panels of the rigid foldable module in the unfolded position. This figure shows the stand in the support position and the removable side panels of the module.

- Figure 12 A is a view according to Figure 12, rear view showing the folded module housed completely inside the structure.

This figure shows the module in the partially folded position with the stiffeners, also allowing movement of the structure.

- Figure 12 B is a view according to Figure 12, seen from the rear. This figure shows two structures with their rigid unfolded modules coupled and highlights the communication between the modules when the removable side panels are removed.

This figure shows the side fittings acting as liquid tanks.

- Figure 12 C is a side view of two structures with their rigid modules, connected rear face opposite and provided with a connection when communication between the two modules is desired while keeping the integrity of the assembly.

- Figure 13 is a diagram of the different combinations of assemblies possible but not limiting.

The structure according to the invention is composed of removable and interchangeable elements, forming a self-supporting box serving as a base and support for reliable equipment and increasing the versatility of the whole whatever the purpose of the use and its environment, direct or indirect drive motors not shown in the figures, energy recovery systems not shown in the figures, manual or automatic means for adjusting the ground clearance not shown in the figures, of coupling means of one or more structures 3, 4, between them, of one or more compartments ensuring the buoyancy of said structure 3, of a double partitioned bottom acting as a liquid reservoir in which space is provided for the implantation of the propulsive organs and changes of direction in liquid medium as well as a longitudinal rai -disseur through which sheaths, cables, and movement transmission units, with lowered upper edges forming a rolling path, for a sliding gallery usable for distributing the forces exerted on the cover and as a lateral or rear access ramp for articulated and / or removable equipment usable alone or together, adaptable modules standardized for the purposes of using the very specific set without compromising its versatility.

The concept of the multipurpose structure consists, as shown in Figures 1, 2, 3, 4, 7, 7 A, 8, 8 A, 11, 12 in a self-supporting base with a suitable profile.

This base, self-supporting box, 3, made up of parts 1, 2, 2 A, assembled, adjustable, with adapted profiles, takes into account the difficulties inherent in progress on the road, on difficult terrains, on snow and ice, on and in the liquid element, and can receive the equipments give it increased versatility.

The axle arms are adjustable around their axis, the wheel attachment points can receive the binding 28 to transform the protection 20 into ski 20 B. This makes it possible to adjust the ground clearance, either according to the load, either depending on the terrain, or depending on the state of the snow.

 Note that the fixing points provided allow the creation of a sled train and that the head structure or structures can be driven for the whole train.

The different parts 1 and 2 are preferably welded, glued, or in one piece, connected together and secured so as to be removable.

The whole is waterproof and rigid.

The elasticity specific to the materials used is taken into account.

 The ventral apron 12 constitutes the protective element of the structure, of the internal organs, and makes it possible to obtain better penetration into the air or the liquid element or to slide without difficulty over obstacles and over snow.

It serves as a support for fixing the axle (s). It is connected to the rear apron 10 A according to a rounded, folded, curved or molded profile facilitating the sliding of an obstacle in contact with the rear overhang, and the progression in reverse.

 The rear apron 10 A constitutes a rigid part on which a rear door 10 B is articulated without breaking the seal, and receives various fixing points, the two, 6 of which, provided at the upper corners serve as supports at the end front of the sliding gallery 7 in the pulled back position, figure 8.

 The sides 13 of the structure are adapted and follow the profile of the front part, the rear apron and the ventral apron. The lower edge has a lip 13 A. The said sides constitute in fact a lateral protection, including wheels located inside the passages provided for this purpose. The lower part receives the attachment points 3 of the lateral equipment provided, 20, 15 C, and the orifices of the self-propulsion equipment 4, 5. The upper part receives the attachment and iron points equipment 20. The upper edge, according to a suitable profile, receives the sides of the sealed cover 15, and constitutes a runway 18.

 The cover, 16, of the front part is hinged, its watertight closure. I1 can be tilted forward and receive connectable solar panels.

 The rear cover, 15, is hinged, its seal closed. I1 is designed to receive the unfoldable elements of a tent, 22 A, unfoldable panels, 15 A, and standardized modules (ex 31).

 At the front part, 9, of the rear part 1, a partition comes opposite a partition 10 of the front part 2 according to an assembly plane 10.

The plane 10 separates the front part 2 from the rear part 1 of the structure.

The front part 2, which can be dismantled, has a profile which can vary depending on the specific use of the structure. It contains the installation of the equipment producing the energy necessary for the direct or indirect drive motor, the connections of the controls, sheaths, cables and other movement transmission organs, coming from the rear part 1, or from outside the structure. The front apron 8 receives the fixing points provided for the drawbar, the outlets for the winch cable and outlets for the liquid flow according to the type of construction,
The rear part 1, detachable from the front part 2 contains the internal useful volume of the structure, and a double partitioned bottom, acting as a liquid reservoir, in the volume of which takes place a longitudinal stiffener, the pipelines conveying the liquid flow propulsion, propulsion systems and changes of direction and a winch according to the obtion. Its different arrangements are not shown in the figures.

 Equipment: tend to increase capacity, reliability and performance of a structure whose versatility becomes proportional.

The possibilities of adapting a more specific front part of the use by modifying the profile and / or the volume do not affect the qualities of the adapted equipment:
-The sliding gallery 7 can have a protection of the loading space, 23, 23 A. The said gallery covers 7 A, and protects the foldable shelter 22 A. It slides back beyond the plane vertical of the rear apron 10 A, to actually release the cover 15 and the shelter 22 A, by resting on the profile of the fixing points 6.

It keeps a horizontal position thanks to adjustable crutches 7 E. Their use allows to separate the gallery from the structure while remaining in height for a reverse manipulation. Said gallery also serves as an access ramp 7 D, from the rear, from the side, or from the front, by resting on the fixing points 6, 3, 6 A. The said gallery, slid into the interior position 7 B, is supported on the wheel arches and the supports 7 C to support the cover 15 and distribute the forces to the structure. In this case, the removable elements of the floor 19 A come into position 19.

 -The foldable side structures are articulated in 3 on the sides 13, cover and protect the inflatable flexible elements 21. These elements have sides with profiles compatible with their use as a ski 20 B after having been joined thanks to the parts 28 fixed in place and place 24 of the wheels. The inflatable elements are thus protected both in the deflated position 20 and in the inflated position 21, and bear on the pro-protective element and are held by a strap which is not shown.

These two elements can be used as additional floats or as liquid tanks. They can be connected to a pump for automatic operation. In this case, the emptying of the air or of the liquids contained causes the automatic folding of the protective element against the side 13. The automatic inflation produces the opposite effect.

 -The fixing points: are intended to receive the drawbar 25 at points 6 A from the front 2. A fixing point not shown in all the figures, located at the upper middle part, of the deck 8 makes it possible to support the drawbar raised position after dismantling the arm 27. This fixing point also serves as an attachment point for a not shown cylinder giving the structure a bucket function. In this case, the arm 27 serves as a lock after use.

A fixing point identical to 6 A is provided in the middle and lower part of the deck 8.

The lateral fixing points 3 receive the lateral equipment, the gallery in the lateral access ramp position 7 D, the supports 15 C, ballast weights.

The lip 13 A can receive fixing points by bolting.

The rear fixing points, 6, are located at the upper corners of the rear part 10 A to receive the gallery 7, or any other standard element -dardized operating on the same principle, in the retracted position according to the arrow F 1, for completely disengage the cover 15 and / or allow it to open, to allow the crutches 7 to be put in place. These points 6 serve to support the gallery 7 in position 7 D, to couple two structures facing back, and receiving the elements 29 of the drawbar for the coupling of two structures side by side. These same points 6 allow the coupling of two structures facing the upper face (fig. 12 D), as well as the lateral couplings.

A fixing point not shown in the figures allows the coupling of several structures in succession (fig: 7 A).

The fixing points also serve as support for equipment located above the structure and unfoldable modules (wind turbine, antenna ...) Fig 12 E
-The drawbar Fig 2 A consists of a part 25 and allows the coupling.

It may include an inertia brake, a parking brake, not shown.

This element also receives a jocket type wheel.

The part 26 receives the part 25, the upper arm 27 and the lateral arms 29 are secured by pinning. (FIG: 14).

The upper arm 27 is connected to the part 25 on one side and to the upper and middle fixing point of the deck 8 by pinning. It is adjustable in length to adapt the height of the coupling point at the end of the part 25.

A cylinder, not shown in the figures, can be fixed on the part 25 and a fixing point 6 A of the front apron 8.

The lateral arms 29 are connected to the part 26 and to the fixing point 6 A of the front apron 8, by pinning. These arms are adjustable in length.

The arms 27 and 29 are used for coupling the structures. Note that part 25 can be replaced by a fin acting as a depth governor for the sub-aquatic use of the structure, or receive the end of a mast supporting aerial equipment (wind turbine) antenna, sail ...), FIG: 12 E.

 -The front part 2, waterproof, receives a horizontal or inclined front cover 16 (FIG: 11, or an underwater version), and the fixing points 6 A. It receives in its interior volume the motors , winches, batteries, connections, control boxes, pumps, the number and power of which may vary.

It receives one or more driving wheels or not, steering.

 -The axle (s) are equipped with a ground clearance adjustment system. The lever arm connecting the wheel is removable. These elements are not shown in the figures.

The wheel can be replaced by a part 28 allowing the ski 20 B to be fixed (FIG: 7 A). Said wheel can be replaced by a pulley causing peripheral equipment.

The wheel or wheels can be driven, by direct or indirect drive, and has disengageable hubs.

-The modules: they are removable (22 A, 31 A), flexible (22 A, 31 A) rigid (31 A, 31), flexible (22 A), expandable (22 A,), couplable (31A)
a) Dismountable, foldable, flexible, extensible: 22 A. FIG: 8A, 9.

fits in the folded position in space 7 A. It is soli
-do the cover 15.All can be removed leaving
so the rest of the structure available.

b) Dismountable, foldable, rigid, couplable: 31 A. FIG: 12.12A
12 B, 12 C. Housed in disassembled position, total or partial
FIG: 12 A, the structure retains a load capacity.

c) Removable, 23, 23 A. FIG: 7 A. It protects the volume of
loading gallery 7.

d) Not shown in the figures, the structure may be the
transport base for standardized containers housed in
the interior volume of part 1, after removing the
cover, resting on the wheel arches and the
support points 7 C, or on the cover taking the
gallery place 7.

e) Dismountable, rigid, 31. FIG: 11, 11 A, 11 B. The unit
line 31 is provided so that the controls are con
-nected to the aprtie before 2. Use as
vehicle can be done solo, FIG: 11 (urban vehicle,
captive park) or as a towing unit, FIG: 11B,
- linked to other structures (ex: FIG: 7 A).
uses are possible on the ground, snow, ice,
or the liquid element.

- the thrusters:
a) Those intended for land use with or without
snow and ice, direct or indirect drive.
-gie used, supplied by the motors and / or pumps of the
front part 2, can be electric, hydraulic
-that, mechanical or pneumatic. Depending on the version,
power delivered to the axis can be modulated by a varia
-tor. Thrusters can drive all wheels
shown in the figures.

b) Those intended for use in a liquid medium.
liquid will be in a nonlimiting manner, but preferably
-ence at the wheel arches to guarantee
the propellant liquid supply when the plane
carrier liquid is no longer at or above the
waterline at the front of the structure (start,
planing, predominant load at the rear).
lateral rear of the liquid flow, 4, allows coupling,
the use of lateral equipment, in all cases
of figures. The system 5 for changing and reversing the
outflow, moves to be outward,
perpendicular to the 13 sides. Its use allows
with two structures coupled to the rear opposite
participate together in the progress of the whole.

 -Equipment usable in underwater use of the structure. In this case, and to progress in a straight line, the front part is preferably equipped with a cover inclined towards the front according to a profile identical to that of the apron 8. The part 25 of the drawbar is replaced by a fin acting as governor - depth thumbnail. The structure can be ballasted using the lateral equipment. The use according to this mode of the structure can be done with or without human presence (in the latter case, automatic piloting or radio guidance allows the transport of freight outside the normal communication channels, including under the ice).

 The hydrodynamics can be improved by removable panels obstructing the lateral opening of the wheel arches.

To compensate for operational failures, and to guarantee the recovery of the structure and its load, a reserve of compressed gas makes it possible to expel the water from the ballasts; this system can be triggered automatically beyond a predetermined time (timer) or beyond a predetermined depth (manometric capsule).

REFERENCES
F1: Arrow.

1: Rear part of the structure.

2: Front part of the structure.

3: Fixing points.

4: Lateral outlet of the liquid flow.

5: System for deflecting and reversing the liquid flow.

6: Attachment point of the rear apron in line with the
taxiway.

6A: Fixing points.

7: Sliding gallery.

7A: Space provided between the gallery floor and the cover 15.

7B: Positioning of the gallery 7 inside the rear part 1 7C: Front and rear supports of the gallery 7 in position 7B 7D: Positioning of the gallery 7 as an access ramp.

7E: Adjustable crutches.

8: Front apron of the front part 2.

9: Front apron of the rear part 1.

10: Rear plane of the front part 2.

10 A: Rear plane of the rear part 1.

10 B: Rear door of the structure.

11: Assembly plan of the front part 2 and the rear part 1
of the structure.

12: Ventral apron of the rear part 1.

12 A: Double bottom of the rear part 1.

 13: Side of the structure.

13 A: Lower edge lip on side 13 of the structure.

14: 10 A transom mounting point.

15: Back cover 1.

15 A: Removable, articulated, foldable panel, part cover
rear 15.

15 B: Removable, articulated, foldable panel, part cover
rear 15.

15 C: Support element for the side panel 15 A, 15 B.

16: Front part cover 2.

 17 Gallery floor 7.

18: Rolling path of the upper edge of the sides 13.

19: Element of the floor 17 of the gallery 7 placed in contact with the cover
15.

19 A: Element of floor 17 of gallery 7 placed in the living position
-tuelle. Lower.

20: Protective element of the lateral inflatable structures in position
folded up.

20 A: Protective element for lateral inflatable structures in position
unfolded.

20 B: Protective element for lateral inflatable structures in use
ski.

21: Flexible element of the inflatable structure in the unfolded position 20 A.

21 A: Element 21 used to store liquids.

22: Removable, articulated, folding frames of the cover 15.

22 A: Foldable tent, housed with its 22 frames in space 7 A.

 23 Tent whose frames can be joined to the gallery 7.

23 A: Reinforcing fixtures at gallery 7.

24: Wheel rim support.

25: Multipurpose drawbar of the structure.

26: Connecting piece of the various elements of the drawbar 25.

 27 Drawbar element 25 adjusting the height.

28: Piece to secure the support 24 to the element 20 B used
like skiing.

29: Drawbar side arm 25.

30: Directional wheel, driving or not.

31: Control unit.

31 A: Versatile, rigid, flexible module.

32: Foldable elements of module 31 A.

32 A: Removable side panel for communication between two
modules 31 A.

32 B: Amount of panels 32 A, hinged at 32.

32 C: Stiffening element allowing movement during assembly
partial of modules 31 A.

33: Sealing and connecting element between two 31 A modules.

34: Deep fin.

REFERENCES
PL / 1:
FIG 1 Rear part of the structure. Profile.

FIG 2 Front part of the structure. Profile.

FIG 2 A Timon. Various components.

FIG 3 Assembled structure. Profile.

PL / 2:
FIG 4 Structure with gallery. Profile view.

FIG 5 Structure with gallery. Top view.

FIG Ó Structure with gallery. Positioning of removable elements
constituting the gallery floor. Back view.

 PL / 3 Use of the sliding gallery.

FIG 7 Positioning of the gallery inside the structure. Profile.

 Total or partial transfer of the gallery from one structure to another.

 Profile.

FIG 8 Positioning of the gallery inside the structure. Rear view
-re.

 Example of coupling of two structures facing rear faces.

 Back view.

 Example of the use of inflatable structures. Back view.

Positioning of the removable elements of the gallery in position
high. Back view.

FIG 8 B Use of the gallery by rear grout and maintenance on
crutches.

PL / 4:
FIG 7 A Example of coupling two structures. Profile.

 Example of structures equipped with skis. Profile.

 Use of the gallery with tarpaulin. Profile.

 Equipment of inflatable structures in the folded position. Profile.

FIG 8 A Unfolded flexible structure, integral with the cover. Profile.

 Gallery in ramp position from the rear. Profile.

PL / 5:
FIG 9 Foldable flexible structure integral with the cover, mounted with
hinged folding panels on the cover. Installation with struc
-inflatable lights. Back view.

FIG 10 Installation example of inflatable equipment. Front view.

Example of coupling on the liquid element, with the use
partial of additional float equipment. Front view.

 Gallery in lateral access ramp position. Front view.

PL / 6 Example of equipment with elbow module.

FIG 11 Self-propelled structure with:
-Front section with suitable profile, equipped with two wheels
driving and / or directing. Profile.

 -Rear part equipped with two driving axles or not.

 Profile.

FIG 11 A Same as FIG 11. Front view. Inflatable structures. Front view.

FIG 11 B Example of access mode inside the rear part.

PL / 7:
FIG 12 Foldable, rigid, versatile module. Mounted position. Rear view.

FIG 12 A Module of FIG 12 stored inside the structure. Back view.

 Module of FIG 12. Partial folding of rigid module for movement.

 Back view.

PL / 8:
FIG 12 B Coupling side by side of two structures equipped with a module
rigid foldable. Back view.

FIG 12 C Coupling rear face opposite two foldable modules
rigid with connecting elements. Profile.

PL / 9:
FIG 12 D Juxtaposition upper face opposite two structures.

FIG 12 E Example of aerial equipment. Installation of a wind turbine for regenerated
-ration of stored energy.

PL 10:
FIG 13 Non-limiting diagrams of couplings.

PL 11:
FIG 14 Schematic details of the drawbar. The adaptable glass is not shown
- felt.

PL / 12:
FIG 15 Profile view of the structure in underwater configuration.

PL / 13:
FIG 16 Diagram of the change of direction and reversing equipment
of the propellant liquid flow.

Claims (8)

1 Multipurpose structure, towable, unsinkable or submersible, self-propelled  of modifiable dimensions, which can quickly adapt to very uses  various, on very different terrains, including the liquid element  characterized by the fact: which is composed of a self-supporting base  consisting of removable elements, attachment points for teams  - elements which can be used alone or together, dismountable, of drive motors -  - direct or indirect, of operating system with manual controls  automatic or remote, self-propelled, directional, couplable, att  -lable, with variable and renewable energy autonomy, the con  reption meets a wide variety of needs at all latitude. 2 Structure according to claim 1 characterized in that the part  front (2) is removable and interchangeable, with an apron (8) in  tilted forward, a cover (16) inclined or not inclined downwards.  -drain difficult, on snow, on the liquid element or under water.  suitable profile. rounded, folded or curved, which facilitates the progression in ter  This front part is waterproof, connected to the rear part (1) according to a  between them.  -tallation of a jar and are used to couple the structures  front apron receives the fixing points (6 A) for the drawbar, the ins  connections in manual, automatic or remote-controlled modes. The  or indirect of the towing or propelling components, the controls and their  -tions ensuring the production of energy necessary for direct training  This front part provides a compartment intended to receive the installa 3 Structure according to claim let 2, characterized in that the  removable drawbar (Fig 2 A), which can be attached to the front part (2), of which  the constituent elements adapt to the different anchor points  provided on the structure. The elements of this drawbar make it possible to tow  structure and harness them together. Its demon elements (27.29)  -tees are used to couple structures. front element (25) is  of variable height thanks to the element (27).  -nements outside the structure.  drawbar (25.26.27.29.) themselves serve as supports for fixing equipment  The anchor points (3.6. 6A) of the drawbar elements and the elements of the  underwater.  Element (25) is replaced by a rudder in use 4 Structure according to claim 7 characterized in that  that the rear part (1) can be assembled with the air part (2), is watertight  provided with a front wall (9) receiving supports (7C) to allow  support and 1, 'distribution of efforts when the gallery (7) is in  internal position, of a hinged cover (15) which ensures sealing  lu interior volume coming to bear on the wall (9), the edges of the ribs  (13) profiles in runway t 18) and the rear plane (10 A) at  level of the upper edge of the rear door (1Q B) hinged, movable and  waterproof, a ventral apron (12) which constitutes the bare protection above  of the structure connected to the rear apron according to a rounded, folded or  curved facilitating progression in difficult terrain and in reverse  sides (13) in the extension of the sides of the front part (2)  providing lateral protection, including wheels housed in passagas  interior, receiving fixing points (3) for equipment  lateral e + lateral positioning of the gallery (7) as an access ramp  (7 D), the said cates have a pound at the bottom edge and are connected  to the ventral apron, that the rear part (1) to a rear apron provided  attachment points (6) for coupling the structures together  hitching a next one, fixing supnorts of aerial equipment,  the gallery support (7) in the rear access ramp position (7D).  on the front naroi (9).  The rear plane receives supports t 7C) with the same function as those placed 5 Structure according to claim 1 & 4 characterized in that a double  partitioned bottom (12.A) * 1 lower part of the rear part (1)  constitutes a usable volume to participate in the floating of the structure  pn.1'r store liquids, or receive accumulator batteries  electric.  (13) by bolting, riveting, bonding eyelash soda.  The upper setting which acts as a floor, is secured to the sides  and the direction change system (5).  controls, pipelines, transmission shafts, cables. the thrusters  This double bottom receives a longitudinal stiffener sparing the passage of  This double bottom can receive a winch in an independent space. 6 Structure according to claim 1 characterized in that  that the gallery (7) consists of a movable frame, removable elements  forming a floor with two positions (19, 19 A), can be housed inside  - rear of the rear part (1) to allow the cover (15) to  resist the pressures exerted on him while distributing these pressures to  the whole structure thanks to the supports used (7 C and passage of the wheels),  can receive removable cover elements (23, 23 A 5 ,, can receive  -see standardized containers or specific connectable equipment  to the equipment housed in the front part (2), receives adjustable crutches  -ble to be detached from the structure and remain in the waiting position  at the correct height to be re-loaded, can be used as  access ramp (7 D) in lateral or rear position thanks to the support points  planned (3, 6). The displacement of the gallery is done on the runway  (18) sides (13). 7 Structure according to claim 1 characterized by the fact  that equipment is adaptable, standardized, dismountable, usable  independently or together to increase and / or make polyva use more reliable  - slow of the said structure:  - A flexible, removable, foldable, extensible structure (22 A  integral with the cover (15) and the extension panels (15 A),  usable after translation of the gallery (7).  part (28) provided.  profile protectors (20, 20 A) usable as skis (20 B) thanks to the  sides (13) made up of flexible inflatable elements (21) and elements  - Articulated lateral equipment (3) resting on the  front part (2) and connectable (controls, transmissions).  - Directional equipment (and / or motors) adaptable to the  -that or pneumatic.  - direct or indirect, mechanical, electrical, hydraulic movement transmission  - Propulsion equipment on load-carrying wheels  - Propulsion (4) and directional (5) equipment.  fixed (mooring).  rear (not shown) also serving as support with respect to a point  - Traction equipment in the forward direction or  - Automatic or remote-controlled manual control systems.  rear (1), can be coupled side by side, and / or opposite rear faces (Fig  - A rigid unfoldable module (31 A), which can be accommodated in the part  12 B, 12 C).  - Connectable elements for energy recovery.  - Equipment for underwater use.  (pulley on 24) independent.  - Peripheral motion transmission equipment 8 Structure according to claim 1 characterized in that  that it can receive standardized, specific modules, using the  versatility of said structure:  - Pipe module (31) fixed on the cover (15), con  - connectable to the front part (2) and its equipment.  of standardized container (not shown).  - Quickly removable module, with low center of gravity, type