EP3760078B1 - Storage device including shelf - Google Patents

Description

FIELD OF THE INVENTION

The invention generally relates to the field of storage and arrangement of all types of loads, in particular on a decking.

It relates more particularly to a storage and arrangement device comprising a decking implementing a mesh of metal wires welded together at their intersections.

PRIOR STATE OF THE TECHNIQUE

For the storage of loads, particularly in warehouses, metal decking is widely used. Such decks consist mainly of a mesh of metal wires, welded together at their intersections. Wooden decking is also used.

In order to reinforce these trellises, conventionally stressed in bending under the weight of the load they receive and in the longitudinal direction, the existing storage solutions use a mesh panel to which sheet metal reinforcements are welded. However, these reinforcements constitute dirt and water retention zones.

Similarly, in order to compensate for a lack of rigidity and to prevent the welds from breaking, it has been proposed to produce deckings for which the trellis is guyed (see for example the document FR 2 991 971 ). In this configuration, the stay is welded to the longitudinal wires constituting the trellis. At least one spacer is interposed between the stay and the trellis. Despite this modification, the stay in position of the spacer by the stay can be weakened due to repeated stress on the structure. In addition, the realization of the welding of the stays is complex to implement.

As a corollary, we have described in the document AT 006326 a decking made up of two superimposed metal trellises, capable of being assembled together by welding. If this decking makes it possible to optimize the resistance to bending, the rigidity of the assembly remains nevertheless insufficient for a certain number of applications.

The object of the present invention is to remedy the aforementioned drawbacks.

DISCLOSURE OF THE INVENTION

The invention proposes a storage and arrangement device according to claim 1 which comprises a decking comprising two mesh panels, that is to say of the type consisting of trellises of metal wires, positioned one on the other and associated to each other by soldering.

According to the invention, the upper plate or panel, intended to receive the load, is reinforced by means of a second mesh panel, the latter having by construction folds oriented in one of the directions of the metal wires constituting said second panel, and forming a projection, typically in the shape of a "V" with respect to the plane defined by said second panel.

The two panels are welded together so as to align all the horizontal and vertical wires. More specifically, the top panel mesh wires are welded above the bottom panel backer wires. This optimizes the rigidity at the end wires of the upper plate, rigidity particularly desired when said decking is positioned on a rack.

The two panels then form an all-wire decking, that is to say free of any additional reinforcing element.

The folds defined by the second panel give the assembly a "beam" effect, capable of optimizing the mechanical strength of the decking, and of reducing or even avoiding any deflection phenomenon likely to result from the storage of load on said decking.

The invention can be configured to adapt to the use of even heavier loads. Thus, the diameter of the steel wires making up the panels can vary depending on the load to be supported, as can the number and positioning of the "V" reinforcing plies.

• le passage de la lumière au travers des panneaux, facilitant l'identification des produits stockés ;
• l'écoulement de l'eau ;
• d'éviter la rétention de saletés ;
• d'améliorer l'esthétique.

Due to these modifications, this all-wire decking allows in particular:

• the passage of light through the panels, facilitating the identification of stored products;
• water flow;
• to avoid the retention of dirt;
• to improve aesthetics.

Advantageously, with the aim of resisting even more heavy loads, the decking of the invention can be reinforced mechanically by adding elements between the two mesh panels. More precisely, these additional reinforcement elements are positioned at the level of the "V" folds, and consist either of a wire or round iron, a flat iron or an adjustable angle iron.

BRIEF DESCRIPTION OF FIGURES

• La figure 1 représente une vue schématique en perspective d'un dispositif de stockage et de rangement comprenant des platelages, conformes à l'invention.
• La figure 2 est une vue schématique en perspective de face d'un platelage tout fil constitué de deux plateaux grillagés, conforme à l'invention.
• La figure 3 est une vue schématique éclatée du platelage tout fil représenté en figure 2.
• Le figure 4 est une vue schématique en section de l'assemblage de deux panneaux grillagés mettant en évidence la liaison des fils.
• La figure 5 est une vue schématique agrandie d'une zone de liaison des fils de la figure 4.
• La figure 6 est une vue schématique en section du platelage de l'invention en position sur le dispositif de stockage de la figure 1.
• La figure 7 est une vue schématique éclatée d'un platelage tout fil comprenant des renforts complémentaires du type fer-rond.
• La figure 8 est une vue analogue à la figure 7, vue en section de l'assemblage.
• La figure 9 est une vue schématique éclatée d'un platelage tout fil comprenant des renforts du type fer-plat.
• La figure 10 représente une vue schématique éclaté d'un platelage tout fil comprenant un renfort du type cornière suivant une première orientation.
• La figure 11 est une vue analogue à la figure 9, vue en section de l'assemblage.
• La figure 12 représente une vue schématique éclatée d'un platelage tout fil comprenant un renfort du type cornière suivant une deuxième orientation.
• La figure 13 est une vue analogue à la figure 11, vue en section de l'assemblage.

The way in which the invention can be implemented and the resulting advantages will emerge better from the examples of embodiment which follow, given by way of indication and not limitation, in support of the appended figures.

• There figure 1 represents a schematic perspective view of a storage and arrangement device comprising decking, in accordance with the invention.
• There figure 2 is a schematic front perspective view of an all-wire decking made up of two mesh trays, in accordance with the invention.
• There picture 3 is an exploded schematic view of the all-wire decking shown in figure 2 .
• THE figure 4 is a schematic cross-sectional view of the assembly of two mesh panels showing the connection of the wires.
• There figure 5 is an enlarged schematic view of a wire bonding area of the figure 4 .
• There figure 6 is a schematic sectional view of the decking of the invention in position on the storage device of the figure 1 .
• There figure 7 is an exploded schematic view of an all-wire decking comprising additional reinforcements of the round iron type.
• There figure 8 is a view analogous to figure 7 , sectional view of the assembly.
• There figure 9 is an exploded schematic view of an all-wire decking comprising reinforcements of the flat iron type.
• There figure 10 shows an exploded schematic view of an all-wire decking comprising an angle-type reinforcement in a first orientation.
• There figure 11 is a view analogous to figure 9 , sectional view of the assembly.
• There figure 12 shows an exploded schematic view of an all-wire decking comprising an angle-type reinforcement in a second orientation.
• There figure 13 is a view analogous to figure 11 , sectional view of the assembly.

DETAILED DESCRIPTION OF THE INVENTION

Basically, the all-wire decking included in the invention consists of two mesh panels joined together by welding.

We represented on the figure 1 a storage and arrangement device (1) incorporating such decking (5). These deckings (5) presented here in their configuration of use, define an upper face for receiving a load, in particular products of any kind (not shown).

On the figure 1 , the decking (5) rests on two horizontal rails (4), themselves screwed and generally secured to ladders (2). These ladders (2) extend vertically from the ground and are held together by spacers (3). As shown by the figure 2 And 3 , the decking (5) consists of two separate superimposed panels: an upper panel (6) and a lower panel (7).

The upper panel (6), serving as a tray for receiving loads and products, is made of mesh. That is to say, it is made up of support wires (8) and mesh wires (9) welded together at their intersections, as shown schematically on the figures 3 and 5 .

The support wires (8) and the mesh wires (9) are spaced at a constant distance to form a regular rectangular mesh. Typically, these wires have a diameter of between 3 and 10 millimeters.

In this way, the upper panel (6) performs a support function for the load it is intended to receive, with a homogeneous deformation of the structure and an optimum pressure distribution.

According to a feature of the invention, an additional lower mesh panel (7) is assembled to the upper panel (6).

The bottom panel (7) consists of backing wires (10) and mesh wires (11) and forms a reinforcement for the decking (5).

Indeed, as shown by picture 3 , the lower panel (7) comprises a certain number of folds (12) in the form of a "V", parallel to each other, and resulting from the deformation of the mesh yarns (11) according to one of the two dimensions.

Advantageously, the folds (12) of the lower panel (7) are arranged on the side of the lower face of the decking (5).

Thus, thanks to the invention, the lower panel (7) stiffens the decking (5) by beam effect.

In addition, reinforcing threads (13) are welded to the top of the folds (12) along the axis of the support threads (10) of the lower panel (7). These reinforcing threads (13) have, in this example, a diameter equal to the diameter of the support threads (10) and mesh threads (11). In this way, a decking is obtained that offers better resistance to the load.

The assembly of the mesh panels (6) and (7) is made by resistance welding, without input, with crushing of the two bodies for penetration and fusion of the two materials, high frequency, low or medium frequency, also called HF welding. This process allows in particular the connection of the four wires (8, 9, 10 and 11) (see figure 5 ).

More specifically, as shown in figure 4 , the mesh wires (9) of the upper panel (6) are welded above the support wires (10) of the lower panel (7). The stacking of the wires (9, 10 and 11) then confers better rigidity on the end wires (18) (in fact constituted by the extension of the wires (8)), which rest on the heddles (4) of the rack or storage and arrangement device (1), as has been schematically described in the figure 6 . In doing so, the rigidity of the decking (5) is further increased.

According to yet another advantageous characteristic of the invention, the reinforcing threads (13) mentioned above can be replaced by additional reinforcements. These reinforcements are housed in the folds (12) which have suitable heights.

In a first configuration, the reinforcements are of the round iron type (14) as represented on the figures 7 and 8 .

These longitudinal bars (14) are welded to the top of the folds (12) along the axis of the support wires (10) of the lower panel (7).

The diameter of these round irons (14) is greater than the depth of the folds (12) preventing any contact between the upper panel (6) and the lower panel (7) (see figure 8 ).

In a second configuration, the reinforcements are of the flat iron type (15) as shown in the figure 9 .

These longitudinal flat irons (15) are oriented vertically and welded to the top of the folds (12) along the axis of the support wires (10) of the lower panel (7).

The height of these flat irons (15) is less than the depth of the folds (12) preventing any contact between the upper panel (6) and the lower panel (7).

In a final configuration, the reinforcements are of the angle type (16) as shown in the figures 10 to 13 .

These longitudinal angles (16) can be oriented in two directions. When facing down, the angles (16) have an inverted "V" shaped section, as shown in the figure 10 And 11 . Conversely, when oriented upwards, the angles (16) have a "V" shaped section, as shown in the figures 12 and 13 .

For the choice of a downward orientation, the height of the flanges of the angles (16), taking as the plane of origin the plane defined by the lines of contact between these same angles (16) and the folds (12), projected along the axis perpendicular to the plane of the mesh panels (6) and (7) is large enough to avoid any contact between the upper panel (6) and the lower panel (7) (see figure 11 ).

For the choice of an upward orientation, the height of the flanges of the angles (16), taking as origin the line of contact between these same angles (16) and the top of the folds (12), projected along the perpendicular axis to the plane of the mesh panels (6) and (7) is large enough to avoid any contact between the upper panel (6) and the lower panel (7) (see figure 12 ).

Thus, these characteristic variants of the invention further stiffen the decking and make it possible to withstand loads greater than 500 kg.

The reinforcement elements are welded by HF or semi-automatic MIG-MAG welding.

One conceives all the interest of the decking of the invention, which because of its structure on the one hand, and of the mode of joining of the constituent panels of the decking between them, makes it possible to support heavy loads.

Claims (4)

1. A storage and arrangement device comprising a frame provided with stringers (4) defining areas for receiving and fixing at least one decking (5), said decking including a panel (6) consisting of a mesh of metal wires, respectively of support wires (8) and mesh wires (9) welded together at their intersection, said panel (6) being associated with a second lower metal mesh panel (7), defined by support wires (10) and mesh wires (11) and including rectilinear folding areas (12) parallel to each other, extending along an entire main dimension of said second lower panel (7), and each forming a projection with respect to the plane defined by said second panel, the two panels, respectively upper (6) and lower (7) panels being joined together by welding, characterised in that the mesh wires (9) of the upper panel (6) are welded to the support wires (10) of the lower panel (7), so as to constitute a stacking and to impart increased rigidity to the end wires (18) constituting the extension of the support wires (8) of the upper panel (6), the decking (5) resting on the stringers (4) of the frame by means of said end wires (18) .
2. The storage and arrangement device according to claim 1, characterised in that the apex of the rectilinear folding areas (12) is directed downwards.
3. The storage and arrangement device according to one of claims 1 and 2, characterised in that the decking (5) includes additional reinforcing means fixed at the rectilinear folding areas (12) of the lower panel (7).
4. The storage and arrangement device according to claim 3, characterised in that the additional reinforcing means are selected from the group comprising wires or round steel bars (14) of diameter greater than the diameter of the wires constituting the mesh of the lower panel (7), the flat steel bars (15) oriented perpendicular to the plane defined by the upper panel (6), and the angles (16, 17).

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