EP1029469A1 - Bottle rack and metallic component - Google Patents

Abstract

The metal wine rack consists of sheet steel sides (2a, 2b) connected to a series of wavy horizontal rails (3, 4). The rails are arranged so that the peaks and troughs of two adjacent rails are intercalated. There is a gap (7) between top rail and the of the rack and a smaller gap (8) between the bottom rail and the bottom of the rack.

Description

The present invention relates to a bottle rack made up of metallic elements of the type comprising two lateral uprights in flat iron and a series of transverse rods corrugated fixed at each of their ends on one of the uprights to at regular intervals to support rows of bottles.

We already know wine racks of this type which are generally marketed in the form of several elements intended to be assembled by the user himself. The elements metallic containers of known type bottle racks require a large number of different parts, which results in relatively high manufacturing costs. So that the bottles can be supported in a substantially horizontal position, the compartments bottles of this type indeed have two metallic elements of different design, one supporting the bottom or bottom of the bottles, and the other their neck or upper part.

Not only, the manufacturing is therefore relatively complex, but still it becomes necessary to provide a storage of elements different, which also increases the cost price.

The object of the present invention is to standardize components of the bottle racks of the type indicated previously, reducing manufacturing costs and storage.

The present invention also aims to allow a marketing of the components of a wine rack, under more compact and easier to transport than in the past, view of subsequent assembly.

According to the present invention, a metal locker element to bottles has two vertical uprights in flat iron and a series of horizontal wavy transverse rods fixed to each of their ends on one of the uprights at regular intervals. Ripples of two neighboring rods are offset transversely by half a pitch of so that the bumps and the hollows of said neighboring rods are arranged in opposition. The convexity formed in one direction on a rod is found therefore opposite the convexity formed in the other direction on the neighboring rod. Similarly, a concavity of a rod is opposite a concavity of the neighboring rod. In reality, all the rods are identical and fitted staggered between the vertical uprights. The fixation of the first rod on the vertical uprights is made at a first distance from the end of said vertical uprights while fixing the last rod on the vertical uprights is made to a second distance from the end of said vertical uprights, the second distance being smaller than the first distance. Here we mean by "first rod "by convention, a rod located on one side of the element metallic while the "last rod" is, by convention, the one that found on the other side of the metal element. The first rod can, after assembly, be at the top or bottom.

The ends of the vertical uprights are such that the element can be mounted one way or the other. Preferably, vertical uprights ...., their ends therefore being identical.

The bottle rack according to the present invention comprises at at least two metallic elements, each having two uprights vertical flat iron and a series of wavy rods attached to each of their ends on one of the uprights at regular intervals, and assembly sleepers assembling said metal elements between them. The metal elements are all identical and conform to what has previously indicated.

In this way it becomes possible, with only one type of metallic element, to build wine racks of several types and various dimensions. The manufacturing can be standardized this which reduces production costs.

In a first embodiment of a bottle rack according to the invention, the metal elements are assembled in pairs with a suitable distance, suitable for bottles, one of the elements of a pair being mounted with the small distance at the top while the other element of said pair is mounted with the small distance at the bottom, so that bottles can rest substantially horizontally in the recesses undulations of the rods of the two metallic elements of said pair. Indeed, in this embodiment, the rods of one of the elements of a pair are all located slightly lower than the corresponding rods of the other metallic element.

In another embodiment of a bottle rack according to the invention, the metal elements are assembled in pairs with interposition of a median metallic element having the same general structure than that indicated above but with straight transverse rods. The middle metal element is mounted with the small distance at the top, while the other metallic elements are mounted with the large distance at the top, so that bottles can rest substantially horizontally staggered in the hollow of the undulations of the rods of the two metallic elements being also supported by a straight rod of the middle element.

In each case, at least two pairs of metallic elements can be assembled side by side to double the width of the rack to bottles.

The lower ends of the vertical uprights are preferably fitted with sleeves, for example plastic, playing the role of base. These sleeves can also play a vibration damping role. They may also include means enabling them to cooperate with the upper ends of the vertical uprights of another identical metallic element, so that allow the stacking of several metal elements.

The assembly crosspieces are advantageously made of flat iron having, in the vicinity of each of their ends, a recess of dimensions adapted to receive, perpendicular to the crosspiece, the flat iron of a vertical upright, the assembly being tightened by a screw passing through the vertical upright and the crosspiece and a nut.

Such an assembly ensures the holding of the rack once mounted without that it is necessary to provide, as in the past, a leg warmer additional at 45 ° to stiffen the structure.

For the assembly of a double width locker, the recess of a cross member cooperates with the recess of a other cross member, the assembly being tightened with the vertical upright by means of a screw.

One end of some sleepers can be folded 90 ° to form a bracket for fixing the locker to a wall. Holes can also be practiced on the vertical uprights themselves in the same purpose.

Before assembly, the metal elements of the invention can be held close together and held in this position by a box comprising two articulated shells, each shell being provided with at least one hooking clip cooperating with a rod of a metallic element. The case can also include housings for storing and storing assembly sleepers, tightening screws and nuts and, if applicable, legs.

In a variant of presentation, the metallic elements are held tight against each other by means of an upper case enclosing the upper ends of the vertical uprights and taking support on the upper rods and a lower box enclosing the lower ends of the vertical uprights and bearing on the lower rods. The two boxes can be made for example in folded cardboard and extend over the entire width of the metal elements. One of the cases can serve as housing for storage and arrangement assembly sleepers, clamping screws and nuts and, if applicable, legs.

la figure 1 représente un élément métallique de casier à bouteilles selon l'invention, vu en élévation;

la figure 2 représente en élévation un premier mode de réalisation d'un casier à bouteilles selon l'invention;

la figure 3 est une vue de côté d'un casier à bouteilles de la figure 2;

la figure 4 est une vue en élévation d'un deuxième mode de réalisation d'un casier à bouteilles selon l'invention;

la figure 5 est une vue de côté du casier à bouteilles de la figure 4;

la figure 6 est une vue agrandie de dessus montrant en coupe l'assemblage des éléments métalliques du casier à bouteilles des figures 4 et 5 au moyen de traverses d'assemblage;

la figure 7 est une vue en élévation des éléments métalliques destinés à former, après assemblage, un casier à bouteilles selon l'invention, dans leur présentation à la vente;

la figure 8 est une vue arrière en élévation d'une variante de présentation de la figure 7; et

la figure 9 est une vue en coupe selon IX-IX de la figure 8.

The invention will be better understood from the study of a few embodiments taken by way of non-limiting examples and illustrated by the appended drawings, in which:

FIG. 1 represents a metallic element of a bottle rack according to the invention, seen in elevation;

Figure 2 shows in elevation a first embodiment of a bottle rack according to the invention;

Figure 3 is a side view of a bottle rack of Figure 2;

Figure 4 is an elevational view of a second embodiment of a bottle rack according to the invention;

Figure 5 is a side view of the bottle rack of Figure 4;

Figure 6 is an enlarged top view showing in section the assembly of the metal elements of the bottle rack of Figures 4 and 5 by means of assembly crosspieces;

Figure 7 is an elevational view of the metal elements intended to form, after assembly, a bottle rack according to the invention, in their presentation for sale;

Figure 8 is a rear elevational view of an alternative presentation of Figure 7; and

FIG. 9 is a sectional view along IX-IX of FIG. 8.

As illustrated in Figure 1, the metal element referenced 1 as a whole is intended to be used with at least one other identical metallic element for the realization of a locker bottles and includes two vertical flat iron uprights 2a, 2b totally straight as well as a plurality of transverse rods 3, 4 referenced in the figure from the top to the bottom, 3a, 4a, 3b, 4b, 3c, 4c, 3d, 4d, 3rd and 4th. The transverse rods 3 and 4 are fixed for example by welding or riveting at each of their ends on one of the uprights 2a, 2b at equal and regular intervals. Each corrugated rod 3, 4 advantageously comprises five recesses 5 and five bumps 6 if we consider the element arranged as in Figure 1, that is to say with the concavity of hollow 5 directed upwards and the convexity of the bumps 6 also directed to the top. Each hollow 5 is adapted to receive a bottle as we will see it later.

According to the invention, the undulations of two neighboring rods are offset transversely by half a step so that the bumps 6 and the hollow 5 of the neighboring rods 3 and 4 are arranged in opposition. Indeed, observing Figure 1, we see that the rod 3a located at the part upper of the figure comprises, starting from the left, a bump 6 whose the convexity is facing up and which is located closest to the vertical upright 2a. On the opposite end, the same upper rod 3a has a recess 5 whose concavity faces upwards and which is closest to the vertical post 2b.

The immediately adjacent rod 4a, i.e. the second starting from the top, on the contrary first presents a hollow 5 located at immediate proximity to the lateral upright 2a. At its opposite end, the same rod 4a ends in a bump 6 in the immediate vicinity of the lateral upright 2b.

It follows that if we consider two neighboring rods such that 3a, 4a, a hollow 5 of the first rod 3a having a concavity directed upwards, is in front of a bump 6 considered in the same direction, that is to say with an upward convexity, of the second rod 4a. In other words, if we consider the first two rods 3a, 4a of element 1 from the top, these two rods define between they a zone alternately narrowed and widened because the undulations of these two rods 3a and 4a are offset transversely half a step from each other.

In the example shown, the metal element has a total of ten corrugated rods, namely five identical rods 3, referenced 3a to 3e, and five identical rods 4, referenced 4a to 4e.

It will be noted that the hollows 5 and the bumps 6 are not must have a completely rounded profile but can be, as in the example illustrated, defined by rod portions substantially straight joined by a round.

The fixing of the first rod 3a on the vertical uprights 2a and 2b is made with a first distance 7 from the end of each of the vertical uprights 2a and 2b. On the contrary, fixing the last rod 4th on the vertical uprights 2a and 2b, is made with a second distance 8 relative to the end of the vertical uprights 2a and 2b, the second distance 8 being smaller than the first distance 7. The uprights 2a, 2b being straight, have no curved portion at any of their ends 7 or 8.

Such a metallic bottle rack element allows, depending on the present invention, to realize several types of bottle racks in each time using the same metallic element which can be placed either with the small distance 7 upwards as illustrated in Figure 1, i.e. at opposite with the great distance 8 upwards.

Likewise, the metallic element 1 can be arranged, as illustrated in Figure 1, with a bump 6 on the left of the first rod 3a or on the contrary, after rotation, with a hollow 5 on the left of the first rod 3a, the long distance 7 remaining upwards.

Thanks to the invention, it is therefore no longer necessary to provide metallic elements of different structures to make a locker bottles. Just make, store and have only one type of metallic element 1 to make the various desired models of bottle racks.

Figures 2 and 3 illustrate by way of example a first mode of realization of a bottle rack made by assembling a plurality metallic elements 1 identical to that illustrated in FIG. 1 and previously described.

The metal elements 1 are assembled in pairs with a suitable distance corresponding to a portion of the length of a bottle 9, as can be seen in particular in FIG. 3, the assembly being carried out by means of assembly sleepers 10. One metallic elements 1, in this case the one on the left in FIG. 3, is mounted with the large distance 7 at the top as in Figure 1, while that the other metal element 1 of the same pair is mounted with the small distance 8 at the top, so the long distance 7 at the bottom. The first rod 3a located on the top of the metal element 1 on the left of the Figure 3 and on the front of the plane of Figure 2, is therefore slightly lower that the first upper rod 4e of the metallic element 1 visible on the right of figure 3 and being behind the plane of figure 2.

As seen in Figure 2, the two upper rods 3a and 4th defined by the two metallic elements 1 of the pair 11 are found therefore slightly offset in height by a value which corresponds to reality to the difference in length between the first distance 7 and the second distance 8. This difference in level is advantageously adapted to the difference in level between the body 9a of the bottle 9 and the neck 9b thereof, so that the bottle 9 illustrated in Figures 2 and 3, come to rest by its body 9a in a hollow 5 of the rod 4b by its neck 9b and in a hollow 5 of the rod 3d thus being maintained in substantially horizontal position as can be seen in Figure 3.

In the example illustrated, taking into account the fact that each rod 3, 4 has five recesses 5, it is possible to place five bottles on each row of the pair 11 of metallic elements 1.

The rows are in fact formed in the same way at by means of the following rods, the first of which belongs to one of the metallic elements 1 and the second to the other: 3a and 4th, 4a and 3rd, 3b and 4d, 4b and 3d, 3c and 4c, 4c and 3c, 3d and 4b, 4d and 3b, 3rd and 4a and finally 4th and 3a. Thanks at the head-to-tail disposition of the two metallic elements 1 of the pair 11, rod pairs such as 3a and 4e or 4b and 3d, each belonging to one of the metallic elements 1, are arranged with their corrugations exactly in phase, so that the bottles 9 can rest perpendicular to the plane of the metal elements 1.

In the example illustrated in FIG. 2, a second pair 12 of metallic elements 1 is further assembled next to the first pair 11 so as to double the total width of the bottle rack. The arrangement of the metallic elements of the second pair 12 is identical to that of the first pair 11. The assembly of the two pairs 11 and 12 is made by clamping one against the other vertical uprights opposite the corresponding metal elements, by means of screws 15 passing through the said vertical uprights and the crosspieces 10.

The lower ends of the vertical uprights 2a, 2b are of preferably fitted with protective sleeves 16 made advantageously made of plastic and ensuring thanks to their flexibility inherent anti-vibration effect for bottles supported in the bottle rack of the invention.

The same metallic element 1 can therefore allow the realization a wine rack when assembled as a pair 11 or 12 with an identical metallic element. Such head-to-tail mounting of two metallic elements 1 of the same pair is in particular rendered possible due to the fact that the vertical uprights are straight, the legs being produced by means of sleeves 16 which can be mounted at either end 7 or 8 of the uprights 2a, 2b. In variant, the ends of the uprights 2a, 2b may have curved portions playing the role of legs.

Appropriate means, for example slots, can also be provided on the sleeves 16 so as to allow the stack of identical metallic elements, thus doubling the height of the bottle rack.

The embodiment illustrated in Figures 4 and 5 allows support, at each level, two rows of bottles 9 arranged head to tail instead of only one in the embodiment of Figures 2 and 3.

Two identical metallic elements 1 in accordance with Figure 1 are assembled with the interposition of a middle metal element 13 visible in Figure 5. Element 13 has the same general structure as the metallic elements 1 illustrated in FIG. 1. However, the transverse rods 14 are straight as seen in Figure 4. The rods 14 are mounted between two straight vertical elements at the same regular intervals as the rods 3 and 4 of the metallic elements 1. Of the same way, the first straight rod 14 is fixed to a first distance 7, while the last rod 14 is fixed to a second distance 8 smaller than the first distance 7.

For the realization of the bottle rack illustrated in Figures 4 and 5, the median metal element 13 is mounted with the short distance 8 in top, while the two metal elements 1 are mounted with the large distance 7 at the top and therefore the small distance 8 at the bottom. In these conditions, the rods 3 and 4 of the two metallic elements 1 are at the same level each time slightly below the straight rod 14 corresponding to the middle element 13. However, one of the elements metallic 1 was rotated relative to each other so that the ripples respective rods of the same reference located at the same level of two metallic elements 1, are offset transversely by half not as seen in Figure 4. This is so in each group of three rods 3a, 3a, 14; 4a, 4a, 14, etc.

The median metallic element 13 comprises in the example illustrated, like the metallic elements 1, ten rods 14. It is therefore possible to have ten superimposed rows on the bottle rack each time ten bottles placed head to tail.

As in the embodiment of Figures 2 and 3, the bottles 9 rest substantially horizontally, the body 9a of the bottles 9 being supported in a hollow 5 of a corrugated rod 3 or 4 of a metallic element 1 such as the rod 4b as illustrated in the figures, while the neck 9b is supported by a straight rod 14 of the element median 13. These two bottles 9, illustrated in the figures, are offset in a horizontal plane the value of half a step of the undulations of rods 3, 4.

The assembly of two identical metallic elements 1 and of the middle element 13 is made as in the previous embodiment by means of assembly crosspieces 10, each of the crosspieces having as before, a length corresponding substantially to the distance of a metal element 1 from the middle element 13 necessary to be able to support a bottle 9.

The cross members 10 are preferably made of iron straight dish as illustrated in FIG. 6, and present in the vicinity of each of their ends a recess 17 provided with flanges 18, obtained by a crimping tool or by stamping and whose dimensions are adapted to receive perpendicular to the crosspiece 10, the flat iron a vertical upright 2. The edges 18 delimiting the recess 17 come to cooperate with the edges of the flat iron 2. After tightening by a screw 15 through a hole made both in the upright 2 and in the cross 10, and by a nut 15a, the cooperation between the recess 17 and the flat iron 2 makes it possible to maintain the squareness between the crosspieces 10 and the uprights 2, thus making the usual use in lockers unnecessary bottles of this type, a 45 ° jamb to improve the rigidity of all.

For the realization of a double row bottle rack as illustrated in FIGS. 4 and 5, it is also possible to proceed with the assembly of two crosspieces 10, the concave portion of the recess 17 of one of the crosspieces 10 coming to bear on the corresponding convexity of the recess 17 on the other cross member 10. Two recesses 17 are then tightened one against the other and against the flat iron of a vertical upright 2, as illustrated in the central part of figure 6 by means of a screw 15 and a clamping nut 15a.

To allow the fixing of the bottle rack on a wall parallel to the plane of the metallic elements 1, at least certain crosspieces 10 may have a folded end 19 provided with a hole 19a allowing the passage of a fixing screw to the wall. These folded ends 19 are preferably arranged between two corrugated rods 3, 4 to the place where these approach by two convex portions facing each other. This place does not receive any bottles, so the presence of the folded end 19 does not hinder the introduction of a bottle. For fix the bottle rack on a wall perpendicular to the plane of the elements metal 1, holes can be provided for screws, directly in the vertical uprights 2a, 2b at appropriate levels.

It will be noted that, thanks to the present invention, more areas long distance are provided between two neighboring rods 3, 4 at the place where two concavities face each other, which allows, contrary to what is usually the case in classic type wine racks, introduce a larger diameter bottle such as a magnum.

The identical structure of the metallic elements 1 which allow by their assembly the construction of a bottle rack according to the invention also makes it possible to facilitate the storage, transport and presentation before assembly of all the constituent organs of the bottle rack.

Figure 7 indeed illustrates such a presentation before assembly of a bottle rack as illustrated in Figures 4 and 5.

Two identical metallic elements 1 as well as the element metallic middle 13, are placed on top of each other with the small distances 8 all at the bottom and large distances 7 all at the bottom high. In this way, all the rods 3, 4 and 14 are at the same level and grouped three by three. The three metallic elements 1 and 13 are pressed against each other and held in this position by a case 20 comprising two shells 21 and 22 articulated by means of a hinge 23. Each shell 21, 22 has four attachment clips 24 capable of enclosing a rod 3 or 4 of one of the elements metallic 1. In FIG. 7, the shell 22 is shown hooked by the clamps 24 while the shell 21 is partially shown open upwards, before it is closed and locked by the element 29, 29a.

In the example illustrated, the two shells 21 22 of the housing 20 are made of molded plastic, so that the clamps 24 can be detachably attached to the rods 3, 4 by simple elasticity of the material.

The shell 22 has, as seen in Figure 7, two housings 25 and 26 which can receive the screws 15 and nuts 15a intended for the tightening of the cross members 10. Larger housing 27 provided on the two shells 22 and 21, also makes it possible to house the different sleeves 16 intended to make the legs of the locker bottles. Finally, places are provided for storage and support of the various assembly sleepers 10 which are arranged at inside the housing 20 and held in position by studs 28 from molding on the shell 22 and penetrating into the fixing holes of the assembly sleepers 10 at the location of their recess 17. It will be noted that in the example illustrated, four assembly sleepers have folded ends 19, the other crosspieces 10 being straight.

Figures 8 and 9 illustrate a variant presentation in which the metal elements are also kept tight together against the others as in FIG. 7. In this variant, the maintenance metal elements against each other is obtained by a housing upper 30 and a lower housing 31, both made in the example illustrated in folded cardboard. The upper case 30 encloses the ends upper 7 of the vertical uprights 2a, 2b and is supported by a folded portion 32 against the upper rods 3a and 14. A second folded portion obtained by a cutout 33 comes into contact below the rods 3a, 14 which are thus thus sandwiched between, on the one hand, the folded portion 32 and, on the other hand, the folded portions obtained by the cutouts 33. The folded portion 32 extends over the entire width of the metal elements, while the folded portions corresponding to the cutouts 33 are arranged in the vicinity of the two lateral sides. Above of the first rods 3a, 14, the housing 30 forms a housing closed inside which can be stored, for example in bags plastic, the screws and clamping nuts 25, 26, the legs 16 and the different assembly sleepers 10. The upper housing 30 is maintained in closed position after folding, for example by means staples.

The lower case 31 encloses the ends lower 8 of the vertical uprights of the metal elements. The box lower 31 is therefore lower than the upper case 30. As the upper case 30, the lower case 31 comprises a portion folded 34 extending over the entire width of the metal elements and coming to rest on the lower rods 4th and 14. In addition, at vicinity of each of the lateral sides, the housing 31 has folds material 35, 36 which come above the rods 4e, 14 which are therefore, at this location, sandwiched between the transverse fold 34 and the folds 35, 36.

In the central area, the lower case 31 may include a portion of panel 35 which can be used for example to indicate to the consumer how to mount the bottle rack.

Thanks to the existence of housings 30 and 31, it is also possible easily stack the assemblies thus formed on top of each other in view of their palletization.

Thanks to the identical structure of the metallic elements 1, it is thus not only possible to make different types of lockers bottles, but still to simplify and improve the presentation of different elements of such a bottle rack before it is assembled.

Claims (12)

Metal element of bottle rack of the type comprising two vertical uprights in flat iron (2a, 2b) and a series of rods horizontal wavy cross sections (3, 4) fixed to each of their ends on one of the uprights at regular intervals, characterized by causes the undulations of two neighboring rods to be offset transversely by half a step so that the bumps and hollows of said neighboring rods are arranged in opposition, and that the fixing of the first rod on the vertical uprights is made at a first distance (7) from one end of said vertical uprights (2a, 2b) while that the fixing of the last rod on the vertical uprights is made at a second distance (8) from the other end of said amounts vertical, the second distance (8) being smaller than the first distance (7). Metal element according to claim 1, characterized by the vertical uprights (2a, 2b) are straight. Bottle rack of the type comprising at least two metallic elements (1), each having two vertical uprights in flat iron (2a, 2b) and a series of horizontal corrugated rods (3, 4) fixed at each of their ends on one of the uprights at regular intervals, and connecting crosspieces (10) joining said elements between them, characterized in that the metallic elements are all identical and in accordance with one of claims 1 or 2. Bottle rack according to claim 3, characterized by causes the metal elements to be assembled in pairs (11, 12) with a suitable distance, one of the elements (1) of a pair being mounted with the small distance (8) at the top while the other element (1) of said pair is mounted with the large distance (7) at the top, so that bottles (9) can rest substantially horizontally in the recesses (5) of the undulations of the rods of the two metallic elements of said pair. Bottle rack according to claim 3, characterized by the fact that the metal elements are assembled in pairs with interposition of a median metallic element (13) having the same general structure as that indicated in either of claims 1 or 2, but with straight transverse rods, the middle metal element (13) being mounted with the small distance (8) at the top while the others metal elements (1) are mounted with the large distance (7) at the top, so that bottles can rest substantially horizontally head to tail in the hollows of the undulations of the rods of the two identical metallic elements (1) while being supported by a straight rod (14) of the median element (13). Bottle rack according to claims 4 or 5, characterized by the fact that at least two pairs (11, 12) of metallic elements are assembled side by side so as to double the width of the bottle rack. Bottle rack according to any one of the claims 3 to 6, characterized in that the lower ends of the uprights verticals are fitted with sleeves (16), preferably in material plastic, playing the role of base. Bottle rack according to claim 7, characterized by fact that the sleeves include means allowing stacking an additional metal element. Bottle rack according to any one of the claims 3 to 8, characterized in that the assembly crosspieces (10) are made of flat iron, in the vicinity of each of their ends, a recess (17) of dimensions adapted to receive, perpendicular to the crosspiece, the flat iron of a vertical upright (2), the assembly being tightened by a screw (15) passing through the vertical upright and the crosspiece and a nut. Bottle rack according to claim 9, characterized by for the assembly of a double width locker, the recess (17) of a crosspiece (10) cooperates with the recess of another crosspiece, the assembly being tightened with the vertical upright by means of a screw. Bottle rack according to any one of Claims 3 to 10, characterized in that before assembly, the metal elements are presented tight against each other and held in this position by a housing (20) comprising two shells (21, 22) articulated, each shell being provided with at least one hooking clamp cooperating with a rod of a metallic element, the housing comprising in addition housing for the storage and arrangement of sleepers assembly screws, clamping nuts and nuts and, if necessary, legs. Bottle rack according to any one of Claims 3 to 10, characterized in that before assembly, the metal elements are presented tight against each other and held in this position by an upper housing (30) enclosing the ends vertical uprights of metal elements and taking support on the upper rods and by a lower housing (31), enclosing the lower ends of the vertical uprights and bearing on the lower rods, the two housings preferably being made of cardboard and extending over the entire width of the metal elements, one of the housings also serving as housing for the storage and arrangement of cross members, clamping screws and nuts and, if applicable, legs.

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