[0001] The present invention is about a wall modular structure which allows, using two kinds
of elements only, to build walls for any purpose, more particularly adapted for constructions
which do not have to support considerable vertical loads, i.e. constructions without
covering, like outdoor swimming pools, or constructions with a single floor, like
garages, sheds, or terraced or one-family houses.
[0002] The problem of the prefabricated modular structures is that of providing for a system
which uses the lowest possible number of kinds of modules, for evident cost advantages,
in particular for manufacturing the moulds, of easy and quick assembly, and which
reduces the stocks. However, this necessity of reducing to the minimum the kinds of
modules is in conflict with the likewise indispensable necessity of adapting the modules
to the planimetry of the structure to be built and to its dimensions, which are rarely
identical to a multiple of the module to be used. Therefore, there are always problems
connected with angles, curves and/or the length of the walls, so it is always necessary
to provide for special modules for this requirement, or to resort to complicate systems
for joining the modules.
[0003] The present invention derives from an opposite and to say the least revolutionary
concept in the modular systems field, i.e. it is based on the principle of using a
single wall module and a single joining module of so reduced size as to have the greatest
possible flexibility, thus allowing to practically build, simply using these two elements,
structures of any planimetry and dimension.
[0004] The constructive principle on which the present invention is based is substantially
that of the sheet piling or palisade, that is placing side by side a plurality of
poles or planks of very limited width but even considerable height, to form walls
like for instance the palisades of far west forts, fences or foundation pilings of
structures built on the water, such as harbour structures, lagoon buildings (see Venice)
and so on.
[0005] The problem to solve for adapting this kind of structure to civil buildings is to
provide for a joining between the modular elements which allows a high degree of freedom
between the two joined elements, in order to obtain angles of fair entity and even
curves with rather narrow radius.
[0006] This problem is brilliantly solved by providing for a wall modular element having
the female part of the joint on both sides and an H crosspiece shaped joining modular
element, whose two flanges are provided on both sides of the male part of the joint.
[0007] These and other objects, characteristics and advantages of the structure according
to the present invention will be better highlighted in the appended claims, as well
as in the following detailed description of a preferred embodiment of the same invention,
given in an explanatory but not limiting way, with reference to the figures of the
annexed drawings wherein:
Figure 1 is a plan view of a wall element of the structure;
Figure 2 is a plan view of a joining element or crosspiece;
Figure 3 is a plan view of a wall module made with two wall elements for both faces
of the wall and two crosspieces for the joining with the same number of wall elements
on both sides;
Figure 4 is a plan view of a portion of arc-shaped wall to build for example the so
called roman stairs of a swimming pool; and
Figure 5 is an enlarged detail of Figure 4, to evidence the joining of modules forming
an angle together.
[0008] With reference to the different Figures of the annexed drawings, in which the same
reference numbers are used to indicate the same components, the description starts
with the wall modular element 10, preferably but not exclusively made of plastic material
like polyvinyl chloride (PVC), comprising an outer surface 12 and an inner surface
14, being provided on both its ends with the female part of the joint or opening 16,
consisting of a large opening 18 on whose inner surface 20 a series of grooves 22
similar to a portion of teeth 23 of a rack is provided. The size of such a wall element
10, whose height is variable, is of about 15-20 cm in length, preferably between 16
and 18 cm.
[0009] The joining crosspiece, made of the same material and of about the same length, is
H shaped and comprises a central core 32 and two head flanges 34, 36, each having
a hooking tooth 38 at its end. The outer terminal portion of the flanges 34, 36 forms
the male part of the joint and the tooth 38 forms the male member by which the crosspiece
can be joined to the rack 22 of the female member, to obtain the joining of the two
kinds of modular elements.
[0010] It is evident that the position of a wall element 10 with respect to its contiguous
one will be determined by the position in which the tooth 38 of the crosspiece 30
is hooked in the grooves 22 of the wall element 10. Therefore, if the tooth 38 is
hooked on both faces of the wall at the same groove 22 (see Figures 3 and 5), a rectilinear
joining between the wall modular elements will take place, also allowing to set the
length of the wall according to the groove in which the hooking tooth is inserted.
On the contrary, if the tooth 38 is hooked in a groove A of the outer modular element
which is different from the groove B of the inner modular element, a curve or a concave
or convex angle (see Figure 5) will be obtained, thus creating for instance an arc
of circumference like that shown in Figure 5.
[0011] If a wall head or an approximately right angle edge has to be built, it will be sufficient
to cut the two outer flanges of the crosspiece 30, as it is shown in the detail C
of Figure 5.
[0012] Clearly, the two modular elements of the structure according to the present invention
are suitable for being manufactured also as a continuous extrusion, which is then
cut according to the desired sizes (i.e. heights), and it is therefore evident that
such a system allows a considerable saving of production, warehouse storage and transportation
costs.
[0013] Obviously these structures, once assembled and joined to form the designed walls,
will be completed by a vertical reinforcement inserted in the inner spaces of the
modular elements, a horizontal reinforcement also passing through holes easily obtained
in the diaphragms of the elements and a subsequent cement flow according to the usual
constructive techniques, thus obtaining structures which perfectly resist to lateral
loads, as well as able to support vertical loads of a certain entity without requiring
pillars, which could be obtained anyway by inserting a proper grid reinforcement in
the almost square cavity of a module like that shown in Figure 3.
[0014] It is therefore evident from the foregoing description that the modular structure
of the present invention fully achieves the intended objects, but it should be pointed
out that numerous alterations, modifications, additions and/or replacements of elements
could be made without falling outside the object of the invention and without departing
from its scope of protection, as it is also defined in the appended claims.
1. A modular structure for walls, comprising two modular elements only, a wall element
and a joining element, characterized in that it comprises a wall modular element provided with the female part of the joint on
both sides and able to form both sides of the wall, and an H crosspiece shaped modular
joining element, whose two flanges are provided on both sides of the male part of
the joint.
2. A modular structure according to claim 1, characterized in that the female part of the joint comprises an opening whose outer surface consists of
the outer end of the wall element while the inner surface is provided with a series
of grooves forming a portion of rack, by which both the distance from the adjacent
wall modular element and the inclination or angulation with respect to said adjacent
wall modular element can be set, varying the groove in which the male part of the
joint is inserted.
3. A modular structure according to claims 1 and 2, characterized in that the H shaped crosspiece comprises at both ends a terminal portion to be inserted
in the correspondent opening of the wall element, provided at its edge with a hooking
tooth to be inserted in one of the rack grooves of said female part of the joint.
4. A modular structure according to the preceding claims, characterized in that the two flanges of one of the crosspiece's sides may be cut to form a head or an
edge of the modular wall.
5. A modular structure according to the preceding claims, characterized in that the modular elements are manufactured as a continuous bar to be cut according to
the desired measurements.
6. A modular structure according to the preceding claims, characterized in that both the length of the wall modular element and the width of the crosspiece are comprised
between 15 and 20 cm, preferably between 16 and 18 cm.
7. A modular structure according to the preceding claims, characterized in that the modular elements are made of plastic material, preferably PVC.