Connecting devices between an upper board and a lower board are known, to achieve a partition modular wall to separate one area from another.
Each board is therefore placed on a lower board, and sometimes it is fixed to the lower board. Each board bears the weight of all the boards above.
Sometimes, one or more extruded profiles fixed by screws to the upper board and to the lower board are used, further comprising a groove adapted to allow the hooking of objects projecting from the partition wall.
Such known walls are accessible from both sides and therefore, for aesthetic reasons, the connection profiles must be as little as possible visible from both sides of the wall.
Among other things, the static load on each board is given by the weight of the upper boards and of the other components supported resting thereon.
These structures are thus designed to support compressive loads.
A known device of this type for connecting an upper board to a lower board of a wall resting on a floor involves the use of two separate profiled elements coupled together, fixed to two facing sides of a lower board and an adjacent upper board, respectively. These two elements may include complementary surfaces to align such boards when they are resting on one another.
Sometimes, however, the need is felt to have a fitted panel to be applied hung to a wall, able to allow the engagement to such a panel of cantilever shelves, or other hanging components, positionable in different positions along a horizontal line, or to be able to slide such components horizontally along the wall.
The known structures do not allow being hung to an existing wall as they would tend to break down into individual boards since the profiles used are able to resist compressive and not tensile stresses.
For example, if an upper board of a known panel as described above were fixed to the wall, all the other lower boards would be hanging on such an upper board and the weight of the same and of the wall units hanging on the panel would weigh thereon. This would cause the separation of the boards of the above described known panels, since the profiles typically used would not withstand such a high tensile stress.
Moreover, the known structures cannot be hung to an existing wall since they would not be able to withstand the applied loads without deformation on the joints between the boards. In fact, such structures, when hung, would be subjected to a stress distribution different from when they are resting on a floor, and would inevitably tend to assume a deformed configuration not suited to their function.
More in detail, it may happen that the application of cantilever loads generates forces torques with respect to the fixing points of such structures to a wall, which inevitably would cause the deformation of the structure itself at the joints between the boards.
Therefore, the need is felt to provide an extruded connection profile for connecting to each other an upper portion and a lower portion of a fitted panel having hooking slots for support brackets, able to allow the hooking of such a panel to a wall in a hanging manner while preventing such a panel from getting deformed under the action of forces applied to the same at the slots, and preventing such a panel from being broken down due to its own weight and to the weight applied by hanging cupboards suspended on the panel.
The need is also felt to provide such a fitted panel adapted to be hung to a wall preventing the deformation under the action of loads.