EP0542654A1 - Dismountable construction such as hall, canopy, tent or similar - Google Patents

Abstract

The dismantleable construction such as a hall, canopy, tent or the like comprises a rigid structure (2) forming a framework, covered with dismantleable panels (3, 4, 5), made of a flexible material forming, in particular, the roofing (6). In order to avoid overdesigning the sections forming the rigid structure with a view to enabling the latter to resist the abovementioned overloads caused by snowfall, the said dismantleable panels (3, 4) forming the roofing (6) comprise an electrical infrared heating device (8) formed by a network (10) of conducting elements (11, 11A, 11B) taking on the configuration of a strip (17, 18) in order to ensure that the heat is diffused, these conducting elements (11, 11A, 11B) having, on the side inside the dismantleable construction (1), reflecting means (20) and, at their sides facing towards the outside of this dismantleable construction (1), an emissive black film (21). <IMAGE>

Description

The invention relates to a removable construction such as hall, marquee, tent or the like, comprising a rigid structure forming a framework, covered with removable panels designed in flexible material constituting, in particular, the roof.

The present invention will find its application in the field of temporary constructions of the demountable type and more particularly in the manufacturers of marquees, tents, halls or the like.

In fact, many dismountable constructions are already known which correspond to the above description. Thus, these removable constructions such as halls, capitals, tents or the like, generally comprise a rigid structure forming a framework which is covered with removable panels designed in flexible or semi-rigid or even rigid material. More specifically, the structure is frequently in the form of an assembly of profiles, in wood or in synthetic material or even of metallic type, possibly tubular, such as aluminum profiles or the like, while the cover panels can be of any kind. However, in order to facilitate the disassembly and assembly of this type of construction, these cover panels, like the structure, moreover, must have as main characteristic a weight that is as small as possible in view, precisely, to facilitate handling. Thus, it is frequent to cover the rigid structure of a marquee, hall or the like, with a covering of textile canvas or synthetic material so as to form, thus, the roof panels and the peripheral wall of the removable construction. It is obvious that this type of flexible cover panels are easy to handle and therefore lead to easier assembly and disassembly operations. However, we also find, in these demountable constructions, the use of semi-rigid or rigid structural panels, for example of synthetic material or of metallic type, the choice being able to be linked to the type of activity or to the material coming to be stored under these marquees, halls or the like.

As already mentioned above, one of the essential parameters conditioning the difficulty of the assembly and disassembly operations of this type of construction is the weight of all the elements making up the latter.

However, it can be seen that there is a proportionality relationship between this weight and the mechanical strength of these removable constructions.

Thus, when sizing the profiles making up the rigid structure, account must be taken of all the loads that must be borne by this rigid structure, i.e. the weight of the profiles themselves, the weight of the cover panels, but also additional loads due to external conditions such as rain, wind and ultimately snow.

In fact, this last parameter which is snow constitutes a real problem in the case of these dismountable structures. Indeed, if it is obvious that it is necessary to take into account, in all cases, the additional load represented by rain and wind during the dimensioning of the rigid structure, the question arises whether It is advisable to integrate, systematically, the snow parameter for determining the section of the profiles. Indeed, the risk of an additional load caused by snow occurs only during a very limited period of the year in most temperate regions. However, this parameter, represented by the load created by snow on a roof of a demountable construction, leads, if we take it into account, to a substantial increase in the weight of the rigid structure and, therefore, difficulties and time for erection and dismantling of constructions.

In this regard, it should be understood that these demountable constructions are used, most frequently, for the need of exercising a temporary activity. Also, a rental network has been set up for this type of demountable construction. However, it is obvious that the rental yield is directly linked to the time of assembly and disassembly of these constructions. Thus, the greater the time required for assembly and disassembly, the higher the cost of labor and the more profitability is affected.

Also, it is frequent that the hirers of these demountable constructions have at least two different types of demountable constructions, one finding its utility during the cold periods of the year, with risk of snowfall, the other being used the rest of the year. However, this leads, of course, to the disadvantage, for the lessor of having a larger dismountable construction park, park which, moreover, can prove to be not adapted to the demand during certain periods of the year. . There is another disadvantage which arises in the event of an extension of the duration of the rental of the demountable construction so that one passes from a period of the year without snow to a period at risk of snowfall. Indeed, it is then necessary for the renter to dismantle the construction not intended to support the additional loads created by the snow to replace it with a construction of superior mechanical strength, not to mention that the tenant himself must evacuate the premises to authorize this disassembly and reassembly. Thus, the cost linked to these successive assembly and disassembly operations, if passed on to the rental costs, makes these exorbitant and if it is borne by the lessor, considerably reduces the rental profitability for the latter.

In short, the solution to the problem posed above, consists in being able to use a light demountable construction structure whatever the period during the year so that, on the one hand, one no longer meets the disadvantages, for the lessor, of a large demountable building stock due to the types of construction meeting different mechanical strengths and that, on the other hand, there is no longer any dependence between the duration of the rental and, specifically, the mechanical characteristics of the demountable construction. Such a solution would ultimately translate into lower rental costs for the tenant.

The present invention has been able to respond to this problem through a solution which makes it possible, effectively, to disregard the additional load that can cause the snowfall on the roof of a removable construction. In fact, it is a question of avoiding, through the invention, the presence and the maintenance of this snow on the roof.

Thus, the invention, as characterized in the claims, solves this problem and consists of a removable construction such as hall, marquee, tent or the like, comprising a rigid structure forming a framework, covered with removable panels designed in a flexible material, constituting , in particular, the roof, these removable panels comprising an electric infrared heating device constituted by a network of conductive elements using the configuration of a strip to ensure the diffusion of heat, these conductive elements having, on the internal side at the dismountable construction, reflecting means and, at their sides oriented towards the outside of this demountable construction, an emissive black film.

The advantages obtained thanks to this invention consist essentially in that by associating such a heating device with the panels forming the roof of a removable construction such as hall, marquee, tent or the like, this is avoided, in the event of a fall of snow, the presence and, the maintenance of this snow on this roof. Therefore, the rigid structure, as well as the cover panels themselves, do not necessarily have to be designed so as to withstand the additional load that can represent the snowfall in winter.

• la figure 1 représente une vue schématisée et en perspective d'une construction démontable comportant, plus particulièrement, au niveau des panneaux formant toiture, un dispositif de chauffage en tant que moyen de déneigement ;
• la figure 2 représente une vue schématisée et en coupe d'un premier mode de réalisation d'un panneau intégrant un dispositif de chauffage ;
• la figure 3 représente une vue analogue à la figure 2 mais correspondant à un second mode de réalisation ;
• la figure 4 représente tout comme les figures 2 et 3 une vue en coupe d'un panneau comportant un dispositif de chauffage et correspondant, encore, à un autre mode d'exécution.

The invention is set out below in more detail with the aid of drawings representing only one embodiment.

• Figure 1 shows a schematic perspective view of a removable construction comprising, more particularly, at the level of the roof panels, a heating device as a means of snow removal;
• Figure 2 shows a schematic sectional view of a first embodiment of a panel incorporating a heating device;
• Figure 3 shows a view similar to Figure 2 but corresponding to a second embodiment;
• Figure 4 shows just like Figures 2 and 3 a sectional view of a panel comprising a heating device and corresponding, again, to another embodiment.

As shown in Figure 1 of the attached drawing, the present invention relates to a removable construction 1, such as a hall, marquee, tent or the like.

This removable construction 1 includes a rigid structure 2 which can be designed from an assembly of wooden or synthetic material profiles or of metallic type, possibly tubular, such as aluminum or other profiles. Such a rigid structure 2 thus forms a framework, which is covered with removable panels 3, 4, 5, some of which 3, 4, come to form the roof 6, others 5 constituting the side walls 7 of the removable construction 1.

It should be noted, in this regard, that such removable panels 3, 4, 5, can be made from a flexible material and in particular a textile fabric or synthetic material, or from a material semi-rigid or rigid.

In order to avoid oversizing, in particular, of profiles constituting the rigid structure 2, in order to allow the latter to support the additional load caused by the deposition of snow on the roof 6, provision is made according to the invention for associate with the panels 3, 4, forming the latter, an electrical infrared heating device 8 as a means of snow removal. More specifically, by heating the roof 6, the snow 2 will fall on the latter and comes to melt immediately. This avoids its maintenance and its accumulation on this roof 6.

Advantageously, this heating device 8 consists of a network 10 of conductive elements 11, 11A, 11B (see FIGS. 1 to 4) associated with the panels 3, 4 of the roof 6 and supplied with electrical energy in order to produce heating by radiation. infrared capable of leading to a rise in the temperature of the external face 12 of these panels 3, 4.

As shown in FIG. 4, this conductive element 11 B can be installed on the side of the internal face 13 of the panels 3, 4 or even at the level of the external face 12 of the latter. However, this latter solution requires the insulation of these conductive elements 11B.

Figures 2 and 3 relate more particularly to a solution of integrating the conductive elements 11, 11A in the thickness of the panels 3, 4. Thus, in the context of Figure 2, the conductive elements 11 are embedded in the material 14 composing the panels 3, 4, preferably a non-conductive material, in particular of the synthetic type. It will be recalled, in this regard, that it is frequent to produce removable panels 3, 4, 5 from a canvas of PVC type synthetic material.

In the context of FIG. 3, there is shown a panel 3, 4, consisting of a superposition of two layers 15, 16 of a non-conductive material between which the conductive elements 11A are positioned.

Furthermore, as regards the conductive elements 11, 11A, forming the network 10 at the level of a panel 3, 4, of a roof 6, they can be presented as illustrated in FIGS. 2 and 3, under form of strips of a conductive material 17 promoting the diffusion of heat over the entire surface of these panels 3, 4.

In the context of FIG. 4, this conductive element 11B is in the form of an electrically conductive wire with which are preferably associated heat diffusing means 18, for example, in the form of a strip of conductive material . Advantageously, such a strip 18 can be provided with an adhesive side 19 so as to also constitute effective and practical means of fixing the conducting element 11B, in particular at the level of the internal 13 or external 12 face of the panels 3, 4.

Whatever solution is adopted, it is important that the network 10 constituted by the conductive elements 11, 11A, 11B is able to guarantee the heating of the entire surface of the panels 3, 4, forming the roof 6, so as to avoid the maintenance of snow on the latter.

Note that reflector means 20, located relative to the conductive element 11, 11A, 11B on the internal side of the removable construction 1, are able to improve the efficiency obtained through each of these conductive elements 11, 11A , 11B, more precisely, by guaranteeing the reflection of the heat rays by infrared in the direction of the external face 13 of the panels 3, 4, of the roof 6. Advantageously, such reflecting means 20 are associated with the conducting element 11, 11A through the use of a reflecting conducting material such as a polished aluminum strip.

This heating efficiency produced by a conductive element 11, 11A, 11B can be further improved by the use of an emissive black film 21 disposed on the outward-facing side with removable construction, conductive elements 11, 11A, 11B .

Each of the conductor wires or bands 17 of conductive material forming the network 10 is supplied with electrical energy through busbars 22, 23 simply fixed or integrated into the panels 3, 4 and themselves connected to an electrical energy supply 24. A note that if busbars 22, 23, external to the panels 3, 4 are used, each of the conductive elements 11, 11A, 11B, forming the network 10, will comprise, at its ends, connection means capable of to cooperate with these busbars 22, 23.

It should also be noted that the supply of the conducting elements 11, 11A, 11B can be done at a usual operating voltage of the 220 Volt type. In this case, it is, however, necessary to ensure perfect insulation of these conductive elements 11, 11A, 11B, but also, of the busbars 22, 23. According to another embodiment, this supply is of the low voltage type making it possible to respond more easily to the safety conditions required for such a heating device for dismountable construction 1.

In conclusion from the above, by using roof panels fitted with a heating device according to the characteristics of the invention, the rigid structure, forming the framework of the removable construction, is no longer under the obligation to meet mechanical strength such that it is able to withstand an overload produced by the accumulation of snow on the roof. Indeed, under these conditions, any risk of such accumulation is avoided.

Furthermore, the particularly attractive character from the point of view of the cost price of removable panels comprising a heating device with respect to panels which do not have them makes it possible to systematically envisage and equip the constructions. removable from heated roof panels avoiding, for this very reason, for the renter to have different removable constructions according to their period of use.

Claims (9)

Removable construction such as hall, marquee, tent or the like comprising a rigid structure (2) forming a framework, covered with removable panels (3, 4, 5), designed in a flexible material constituting, in particular, the roof (6) characterized by the fact that said removable panels (3, 4) forming the roof (6) comprise an electric infrared heating device (8) constituted by a network (10) of conductive elements (11, 11A, 11B) using the configuration of a strip (17, 18) to ensure the diffusion of heat, these conductive elements (11, 11A, 11B) having, on the internal side of the removable construction (1), reflective means (20) and, at the level of their sides oriented towards the outside of this removable construction (1), an emissive black film (21). Removable construction according to claim 1, characterized in that the conductive elements (11B) are located on the side of the internal face (13) or the external face (12) of the panels (3, 4) forming the roof (6). Removable construction according to claim 1, characterized in that the conductive elements (11, 11A) are integrated into the thickness of the removable panels (3, 4) forming the roof. Removable construction according to claim 3, characterized in that the conductive elements (11) are embedded in the material (14) composing the removable panels (3, 4), said material (14) being non-conductive of the synthetic type. Removable construction according to claim 3, characterized in that the removable panels (3, 4) consist of a superposition of two layers (15, 16) of a non-conductive material between which the conductive elements (11A) take position . Dismountable construction according to claim 1, characterized in that the conductive elements (11B) comprise an electrically conductive wire with which heat diffusing means (18) are associated in the form of a strip of conductive material. Removable construction according to claim 6, characterized in that the strips forming heat diffusing means (18) have an adhesive side (19) so as to constitute means for fixing the conducting element (11B), in the form of 'an electrically conductive wire, at the internal (13) or external (12) face of the removable panels (3, 4). Dismountable construction according to claim 1, characterized in that the reflecting means (20) are associated with the conductive element (11, 11A) in the form of a strip (17) of a reflecting conductive material, such as a polished aluminum strip. Removable construction according to claim 1, characterized in that it comprises an electrical energy supply (24), of the low voltage type to which busbars (22, 23) are connected, either simply fixed, or integrated into the panels ( 3, 4) forming the roof (6), to these busbars (22, 23) being connected, by suitable connection means, the conductive elements (11, 11A, 11B) forming the network (10).

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