EP2915941A1

EP2915941A1 - Reinforced door

Info

Publication number: EP2915941A1
Application number: EP14425020.6A
Authority: EP
Inventors: Pierpaolo Comellato
Original assignee: Vega SRL
Current assignee: Vega SRL
Priority date: 2014-03-04
Filing date: 2014-03-04
Publication date: 2015-09-09

Abstract

A reinforced door (1) of the type that comprises at least one frame (2) provided with at least one upright and at least one crossmember that can be installed in an opening of a wall and at least one leaf (3) provided with at least one perimetric border (4), with at least one panel (5) that constitutes a face of the leaf, with internal reinforcement and stiffening elements (6), with insulating material (7) and with a lock (8) controlled by respective bolts (9). Between the frame (2) and the leaf (3) there is interposed at least one mutual connection hinge (10), which comprises at least one plate (11) that can be coupled detachably to a respective upright. The plate (11) is provided with at least one hollow protruding block (12) for the pivoting of a slider (13) for supporting the hinge (14). Between the plate (11) and the slider (13) there are means for adjusting their mutual arrangement, perimetrically to the leaf (3) there is at least one sealing gasket (15) intended to abut against a corresponding surface of the frame (2) exclusively at predefined conditions of mutual alignment thereof that derive from the mutual arrangement of said plate (11) and the slider (13).

Description

The present invention relates to a reinforced door that has innovative and improved characteristics with respect to commercially available ones.
It is specified that a reinforced door (or intruder-resistant door) is a specific closure element intended to be installed in an opening for access to an enclosed space (be it a dwelling, an office or other) that has specific security characteristics against break-ins. Hereinafter, the expression "reinforced door" will actually reference all doors that have high standards of security against break-ins, such as for example armored doors, intruder-resistant doors, security doors and other equivalent devices.
The performances of a reinforced door against break-ins are ensured by the lock installed on the door itself (since it might be possible to open the door by picking the lock) and by the actual structure of the door and of its frame.
The door in fact comprises respective bolts that are intended (in the closed configuration) to engage within respective seats of the frame in a stable manner and furthermore comprises several reinforcement elements inside it, which are intended to increase its mechanical strength and stiffness.
Among the weak points, as regards the mechanical performance required to avoid break-ins, it is necessary to mention the hinges.
These components in fact must have a structure and a size suitable to bear the weight of the door in a cantilever arrangement (in some cases even more than 100 kg) and bear mechanical break-in stresses, such as for example the action of a crowbar or other break-in lever (applying static or dynamic pressures).
It is therefore necessary to adopt particular sizes for these components that ensure their necessary stiffness and mechanical strength.
At the same time it is also necessary to be able to adjust the position of the door with respect to the frame (during its installation) to ensure all the necessary alignments that ensure effective and secure closure. All these adjustments are usually performed on the hinges.
Reconciling the extreme mechanical strength required of these components with the possibility to adjust the position of the leaf with respect to the frame in a precise manner is the main limitation to which hinges of the known type are subjected.
A particularly strong and resistant hinge does not have many adjustments and therefore requires the frame to be installed in a substantially perfect manner in order to ensure good operation of the reinforced door.
A hinge provided with several adjustments is instead particularly suitable to tolerate inaccuracies in the mounting of the frame in the installation opening (since such inaccuracies can be corrected by means of the adjustment of the hinges themselves). However, such hinge is less resistant from a mechanical standpoint and is therefore more easily subject to break-ins.
A further problem that is common to all reinforced doors is linked to thermal and acoustic performance: a closure element in fact must ensure thermal and acoustic insulation with respect to the outside environment (so-called AWW insulation, i.e., intended to prevent infiltrations of air, water and wind).
This performance finds its reference in many statutory provisions in force (at the European and international level) that define thermal and acoustic insulation standards for reinforced doors.
Traditional doors comprise gaskets, chambers filled with rock wool (and the like) and internal panels made of insulating material to achieve this purpose.
However, the arrangement of these elements is insufficient to avoid the presence of thermal bridges (a limited local region of the building enclosure that has a higher heat flow density than the adjacent constructive elements) and/or the transmission of sound waves.
The aim of the present invention is to solve the problems described above, by proposing a reinforced door provided with break-in resistant hinges that are adjustable for the optimum hermetic closure of the door with an increase in thermal and acoustic efficiency.
Within this aim, an object of the invention is to propose a reinforced door that is simple to install with a hermetic and acoustic seal even if the frame is installed on the respective opening without complying strictly with the parameters prescribed by the manufacturer.
Another object of the invention is to propose a reinforced door that has a modest heat transmittance and therefore insulates thermally in an optimum manner the installation space from the outside.
Another object of the invention is to propose a reinforced door that has good acoustic insulation and therefore insulates acoustically in an optimum manner the installation space from the outside.
A further object of the present invention is to provide a reinforced door that has substantially low costs, is relatively simple to provide in practice and is safe in application.
This aim and these objects are achieved by a reinforced door of the type that comprises at least one frame provided with at least one upright and at least one crossmember that can be installed in an opening of a wall and at least one leaf provided with at least one perimetric border, with at least one panel that constitutes a face of said leaf, with internal reinforcement and stiffening elements, with insulating material and with a lock controlled by respective bolts, between said frame and said leaf there being interposed at least one mutual connection hinge, characterized in that said hinge comprises at least one plate that can be coupled detachably to a respective upright, said plate being provided with at least one hollow protruding block for the pivoting of a slider for supporting the hinge, between said plate and said slider there being means for adjusting their mutual arrangement, perimetrically to said leaf there being at least one sealing gasket intended to abut against a corresponding surface of said frame exclusively at predefined conditions of mutual alignment thereof that derive from the mutual arrangement of said plate and said slider.
Further characteristics and advantages of the invention will become better apparent from the description of a preferred but not exclusive embodiment of the reinforced door according to the invention, illustrated by way of nonlimiting example in the accompanying drawings, wherein:

Figure 1 is a top view of a hinge of a reinforced door according to the invention;
Figure 2 is a sectional view, taken along a transverse horizontal plane, of the hinge of Figure 1;
Figure 3 is a front view of a component of a hinge of a reinforced door according to the invention;
Figure 4 is a side view of the component of Figure 3;
Figure 5 is a top view of a further component of a hinge of a reinforced door according to the invention;
Figure 6 is a front view of the component of Figure 5;
Figure 7 is a side view of the hinge of Figure 1;
Figure 8 is a sectional view, taken along a longitudinal vertical plane, of the hinge of Figure 1;
Figure 9 is a sectional view, taken along a vertical longitudinal plane, of the reinforced door according to the invention;
Figure 10 is a front view of a possible constructive solution of a reinforced door according to the invention provided with reinforcement slats;
Figure 11 is a sectional view, taken along a horizontal transverse plane, of the reinforced door of Figure 10;
Figure 12 is a front view of a possible constructive solution of a reinforced door according to the invention provided with reinforcement profiles that constitute a grille/grating;
Figure 13 is a sectional view, taken along a transverse horizontal transverse plane, of the reinforced door of Figure 12;
Figure 14 is a schematic front view of a possible constructive solution of a reinforced door according to the invention;
Figure 15 is a sectional view, taken along a substantially vertical transverse plane, of a reinforced door according to the invention in the closed configuration;
Figure 16 is an enlarged-scale view of a detail of Figure 15;
Figure 17 is a sectional view, taken along a substantially horizontal transverse plane, of a reinforced door according to the invention in a partially open configuration;
Figure 18 is an enlarged-scale view of a detail of Figure 17;
Figure 19 is a sectional view, taken along a substantially horizontal transverse plane, of a reinforced door according to the invention in a condition proximate to closure;
Figure 20 is an enlarged-scale view of a detail of Figure 19;
Figure 21 is a sectional view, taken along a substantially horizontal transverse plane, of a reinforced door according to the invention in the closed configuration;
Figure 22 is an enlarged-scale view of a detail of Figure 21.

With particular reference to the figures cited above, the reference numeral 1 generally designates a reinforced door.
The reinforced door 1 comprises at least one frame 2 provided with at least one upright (actually, the vertical uprights are two in number, are mutually parallel and face each other) and at least one crossmember (which is perpendicular to the two uprights and is arranged at their top) that can be installed in an opening of a wall.
The door 1 comprises furthermore a leaf 3 provided with at least one perimetric border 4, with at least one panel 5 that constitutes a face thereof, with internal reinforcement and stiffening elements 6, with insulating material 7 and with a lock 8 controlled by respective bolts 9.
At least one hinge 10 for mutual connection is interposed between the frame 2 and the leaf 3.
The hinge 10 according to the invention comprises at least one plate 11 that can be coupled detachably to a respective upright.
The plate 11 is provided with at least one hollow protruding block 12 for the pivoting of a slider 13 for supporting the hinge 14.
Means for adjusting their mutual arrangement are arranged between the plate 11 and the slider 13.
It is fundamental to specify that at least one sealing gasket 15, intended to abut against a corresponding surface of the frame 2, is arranged perimetrically to the leaf 3.
The abutment of the leaf 3 and of the frame 2, with compression of the gasket 15 intended to seal the gap that exists between the two components, occurs exclusively upon predefined conditions of mutual alignment thereof that derive from the mutual arrangement of the plate 11 and of the slider 13.
More precisely, the conditions of correct placement of the plate 11 (integral with the frame 2) and the slider 13 (integral with the leaf 3 by means of the hinge 14) allow to impose a suitable mutual alignment of the leaf 3 and of the frame 2 that entails that the play between them falls within a predefined range. The gasket 15 ensures an optimum seal against infiltrations of air (or also of water, the containment of which is also specifically prescribed by the statutory provisions in force) exclusively if the play between the leaf 3 and the frame 2 falls within the predefined range. It is therefore evident that the trimmability (possibility to adjust) the hinge 10 is a fundamental element for avoiding air infiltrations.
It is specified that when, hereinafter, reference shall be made to air infiltrations, one shall consider that the solutions adopted to contain said infiltrations will also have the purpose of avoiding infiltrations of water and/or wind and/or combined infiltrations. One can therefore speak of technical solutions aimed at avoiding infiltrations of the type defined by the acronym AWW (Air, Water, Wind).
It is specified that, with particular reference to a constructive solution that is particularly effective in practice and in application, the upright comprises a rear profile 16, which is coupled stably to the installation wall, and a front profile 17, which can be mated to the front profile 16, delimiting a compartment.
A corner support 18 is coupled rigidly (generally welded) to the rear profile 16 and is provided with respective threaded seats 19.
The plate 11 comprises specific slots 20, which are substantially complementary to the threaded seats 19 of the corner support 18 for its mating, with an adjustable arrangement, to said profile by means of threaded elements 21.
In particular, it is pointed out that the slots 20 are four in number, each having a substantially angular shape that comprises two substantially rectilinear portions that are incident and mutually blended.
This configuration allows translations of the plate 11 with respect to the corner support 18 (translations along two perpendicular directions that correspond to the substantially rectilinear incident portions, since they form between them, according to a preferred constructive solution, a right angle). At the same time, the presence of the blending region between the two incident portions allows small rotations of the plate 11 with respect to the corner support 18.
In practice, the position and orientation of the plate 11 can be set and are adjustable in order to ensure optimum conditions of alignment of the leaf 3 and the frame 2 that allow the gasket 15 to ensure an optimum seal against air infiltrations.
It is specified that the slider 13 is constituted by a U-shaped band, which is provided, on the two portions 21 (which face each other and are mutually opposite at a mutual distance that is slightly greater than the length of the hollow protruding the block 12 of the plate 11), with a through channel 22.
In the configuration for use, a connecting pin 23 is accommodated simultaneously in the through channel 22 and in the cavity of the protruding block 12.
It is therefore evident that the slider 13, pivoted to the plate 11 as a consequence of the accommodation of the pivot 23 in its channel 22 and in the cavity of the block 12, can oscillate with respect to said plate.
This allows a further possibility to adjust the position of the hinge 14, which facilitates and simplifies the obtainment of ideal conditions of alignment between the leaf 3 and the frame 2, facilitating the correct arrangement of the gasket 15 in the configuration for closing the door 1 (avoiding air infiltrations).
According to a possible constructive solution, the through channel 22 and the cavity of the block 12 can be threaded identically; in this case, the connecting pivot 23 is constituted by a screw whose diameter and thread are complementary to those of the through channel 22 and of the cavity.
The through channel 22 and the cavity of the block 12 might also have a diameter that is slightly larger than that of the pivot 23.
The pivot 23 is provided with a lock nut 24, which couples its end, ensuring its locking and therefore the stable coupling of the slider 13 with the plate 11.
It is specified that in any case the block 12 comprises at least one threaded transverse hole 25 that leads to the cavity, for the accommodation of at least one respective grub 26 for locking the connecting pivot 23.
Preferably, the holes 25 and the respective grubs 26 are two in number, so as to be certain that the locking of the pivot 23 occurs safely and redundantly.
By tightening the grubs 26, their end is forced against the surface of the pivot 23, clamping it within the cavity of the block 12.
It is specified furthermore that the slider 13, in order to allow its locking according to a specific orientation with respect to the plate 11 and ensure the possibility to perform subsequent adjustments of this orientation, comprises at least one threaded duct 27, which is perpendicular and oblique with respect to the through channel 22, for the accommodation of a respective threaded pin 28, the tip of which abuts against the plate 11.
The rotation of the pin 28, which corresponds to the screwing and unscrewing thereof, in the respective duct 27, ensures the adjustment of the arrangement of the slider 13 with respect to the plate 11, thanks to the consequent mutual spacing/approach of the threaded duct 27 with respect to the plate 11 itself, which is indeed imposed by the threaded pin 28.
Actually, the threaded ducts 27, 29 are two in number, arranged at the two sides of the slider 13 with respect to the channel 22: each one of them accommodates a respective threaded pin 28, 30.
In this manner, as a consequence of the screwing/unscrewing of the pins 28, 30, it is possible to adjust the orientation of the slider 13 with respect to the plate 11 and to secure and lock it in the ideal alignment configuration.
One of the two threaded pins 28, 30 might abut against the support 18 or against the rear profile 16 instead of against the plate 11: in any case, a movement thereof causes a rotation of the slider 13 with respect to the plate 11.
The hinge 10 according to the invention comprises furthermore means for adjusting the height of the rotation pivot that can rotate within the hinge 14: this can be achieved, for example, by using a threaded element the end of which acts on the rotation pivot, translating it in its seat (in practice, the threaded element moves the abutment plane of the end of the rotation pin, thus varying the pivoting height of the leaf 3).
The hinge 14 is coupled to the slider 13 by means of adapted screws 31 that are engaged within holes 32 of the slider 13 and seats 33 of the hinge.
As illustrated extensively earlier, the hinge 10 therefore can be adjusted according to four different axes, allowing an optimum trimming of the mutual position of the leaf 3 and of the frame 2, even in conditions of installation on openings in the respective wall that do not have ideal measurements and alignments.
With the goal of achieving the intended aim and objects defined earlier, thus ensuring optimal thermal and acoustic insulation of the door 1, it is specified that in the door 1 according to the invention at least one component of the leaf 3 and/or of the frame 2 comprises at least one outer coating layer constituted by insulating paints.
Likewise, at least one internal cavity of the leaf 3 and/or of the frame 2 accommodates a thermal insulation material that is inserted therein by means of a process such as blowing, dry spraying and the like.
It is useful to specify that the insulating paints used in the door 1 according to the invention comprise, in a dispersion, at least one substance selected among particles of insulating oxides, ceramic nanospheres, ceramic micro- and nanobubbles, oxide micro- and nanobubbles, and the like.
Merely by way of nonlimiting example, some paints that are already commercially available and can be used to provide the outer layer defined earlier are the following: Nansulate®, which is a water-based breathable paint that covers completely any structure, creating a very thin but tough barrier to the passage of heat, is highly resistant to mold formation, is impermeable to water and breathable and utilizes the presence in a dispersion of patented oxide nanomolecules (hydro-NM-oxide); SurfaPaint-ThermoDry™ Metals, which is a water-based and water-repellent thermal insulation paint for metals; NanoceramiX™, which is a mixture of ceramic nanospheres that is formulated to be added to ordinary paints and in which the ceramic nanospheres have an internal void similar to that of thermos flasks; EcoThermoPaint™, which is an eco-active, thermally insulating, natural mold-resistant paint, which sanitizes and ionizes air and uses insulating hollow ceramics and mineral salts which create a barrier against adhesion to the surfaces of all organic and inorganic particles.
It is specified moreover that in order to define the criteria for acoustic and thermal insulation of predominant interest for the applicant, the thermal insulation material comprises at least one material selected preferably among cellulose fiber, aerogel, sintered expanded polystyrene, expanded polymers.
It is fundamental to specify that according to the invention the thermal insulation material has deeply different characteristics with respect to what is already in use in doors of the traditional type: it is in fact known to resort to panels made of expanded polymers or rock wool or glass wool that are used to fill all the cavities that are present inside the door.
The thermal insulation material according to the invention is instead inserted within each hollow component or in each receptacle that is defined by two or more mutually facing components. This constructive choice eliminates most of the thermal bridges that are present inside the leaf 3 and the frame 2 and minimizes heat and sound transmission coefficients.
Merely by way of nonlimiting example, some thermal insulation materials that are already commercially available and can be used to fill said cavities are the following: cellulose fiber (preferably stabilized), which is a loose thermal and acoustic insulation material that is particularly suitable for the thermal insulation of interspaces, is permeable to water vapor and has excellent sound absorption and soundproofing abilities, suppressing the reverberation of noise; Aerogel Spaceloft®, which is a silica gel that is manufactured synthetically and is impregnated in a substrate of flexible fabric that constitutes a flexible insulating cladding made of nanoporous aerogel that is capable of reducing energy dispersion even if it is applied with minimal thicknesses; granules of virgin or regenerated expanded polystyrene, which is a product with a uniform distribution of dimensional percentages, with substantially no water absorption and which allows even considerable reductions in transmitted noise.
In any case, combining the adoption of insulating paints and/or thermal insulation materials is not excluded, even using optionally other types of paints and materials (different from the ones cited) and/or by combining them with other insulating layers.
For this purpose, mention is made of the possibility to provide the external coatings of some components of the door 1 with laminas made of insulating materials; for example, provisions are made for resorting to the Spaceloft® insulating felt (and/or materials that are equivalent thereto), glued by means of the respective bio-adhesive (and/or substances equivalent thereto) for the cladding of several components.
In relation to the interest in providing a reinforced door 1 that constitutes an excellent shield against heat flows and sound waves, all the components of the leaf 3 and of the frame 2 comprise at least one outer cladding layer, which is constituted by insulating paints, and all the internal cavities of the leaf 3 and of the frame 2 accommodate a thermal insulation material that is inserted therein by means of a process such as blowing, dry spraying and the like.
Blowing is a method by means of which it is possible to "blow" a material until a "container" is filled completely.
This term indicates the method of inserting some loose thermoacoustic insulation materials, such as flakes of wood cellulose and the like, within cavities.
Correct blowing entails: complete and uniform filling of the cavity to be insulated, formation of a self-supporting insulating element that does not empty itself as a consequence of a hole in the container, the absence of waste, the continuity of the layers of insulation and therefore the elimination of thermal bridges.
It is specified that the internal stiffening elements 6 are provided with holes 6a or openings that allow the blowing of thermally insulating material.
If the internal elements 6 are mutually coupled slats, it is possible to use the areas where one slat is joined to the other for blowing if one does not wish to provide adapted holes.
If instead the elements 6 are constituted by tubular profiles that are mutually interconnected so as to constitute a grating, they must comprise respective holes that allow the blowing of insulating material.
The tubular profiles that constitute the grating described above can be mutually interconnected by using shape matings, so as to minimize the welding interventions to individual tack welds (localized welds).
According to the invention, along the perimeter of the leaf 3 (particularly along the perimetric frame 4) there is at least one sealing gasket 15 that is intended to abut against a corresponding surface of the frame 2.
The gasket 15 has a shape intended to eliminate (or at least reduce significantly) air infiltrations even if the predefined conditions of ideal alignment of the leaf 3 and the frame 2 do not occur (due for example to imprecise mounting of the frame 2 or to geometric and dimensional problems of the opening provided in the installation wall).
It is specified, therefore, that the at least one sealing gasket 15 has a closed rectangular shape with dimensions that are substantially similar to those of the leaf 3.
More specifically, it is necessary to point out that the gasket 15 is provided in one piece so that it can be fitted onto the leaf 3, defining a sort of continuous loop that covers at least partially the perimetric border 4 of said leaf 3.
In order to provide this continuous loop, one begins with linear segments of elastomeric profile that are as long as the sides of the leaf 3: by using specific joining apparatuses (blocks of elastomeric material whose opposite faces are shaped appropriately to mate stably with the profile being used), one proceeds with a process for joining the linear segments until a closed gasket 15 is provided.
The joining process can occur by heat-sealing and/or thermocompression (if the profile and the joining apparatuses comprise at least one portion made of thermoplastic elastomers) or by means of specific adhesive bonding operations (which ensure a high tenacity and maintain it over time).
In order to achieve the desired sealing performance, the joining apparatuses have a shape that allows to mate segments that are oriented differently with respect to each other. The need may in fact occur to ensure that different parts of the leaf 3 abut against the frame 2 along different directions (for example due to the presence of edges and/or protruding tabs). Therefore, this leads to the need to orient the respective segment so that it can abut against the surface that is complementary thereto along the ideal direction.
It is furthermore necessary to specify additionally that the possibility is provided to adopt auxiliary joining means that are interposed between at least two consecutive segments intended to cover one side of the perimetric border 4 in order to allow any expansions of the gasket 15. The gasket 15 is in fact provided with dimensions that are suitable to mate by elastic forcing (therefore elongation of said gasket 15) with the border 4. In some cases, therefore, it is appropriate to ensure that the elastic deformations that are a consequence of the arrangement of the gasket 15 on the leaf 3 are located exclusively in some regions, in particular the ones that are less subject to air infiltrations.
This goal is achieved by adopting auxiliary joining means, which deform more easily than the elastomeric profile segments: during the arrangement of the gasket 15 on the leaf 3, the elastic elongations of the gasket 15 are located at the auxiliary joining means (with high deformability), ensuring that the segments of elastomeric profile maintain their ideal shape.
In particular, the cross-section of the gasket 15 comprises a base main body 34, which defines internally a closed chamber 35, and a curved band 36. The band 36 protrudes from the outer centerline portion of the main body 34.
The band 36 is constituted substantially by a flat strip of elastomeric material that has a curved cross-section: more specifically, it is constituted by two substantially flat and mutually incident (ideally perpendicular) flaps joined by a curved portion.
According to a constructive solution of particular interest in practice and in application, the leaf 3 can comprise an internal lever system 37, which is controlled by a movement control element 38 that can be operated from the outside.
The lever system 37 is preset to move at least one slider 39 from an inactive configuration, at which it is accommodated substantially in a respective area of the perimetric border 4 of the leaf 3, to an active configuration, at which said slider 39 protrudes with respect to the perimetric border 4 of the leaf 3 for the elastic hermetic forcing of the gasket 15 that surmounts it against a corresponding face of the frame 2.
The movement control element 38 that can be operated from the outside can be connected to a dedicated handle provided on the face of the leaf 3 that is directed toward the inside of the installation space. However, the possibility is not excluded to adopt servomechanisms intended to actuate the control element 38 and/or to interconnect mechanically said control element to the lock 8 in order to ensure that the transition from the inactive configuration to the active configuration can be provided simply by moving the key to a predefined position.
According to a constructive solution that is particularly interesting on a practical level, the at least one slider 39 preferably can have an angular shape. In this case, it is accommodated along the perimetric border 4 of the leaf 3, at a corner thereof. The advantage of this embodiment is linked to the fact that in traditional doors the infiltrations of air occur predominantly at the corners of the leaf 3: the forcing of respective angular sliders 39, indeed at the corners, ensures that an optimum tightness to infiltrations of air is ensured in these regions.
It is specified, moreover, that the gasket 15 (in particular the elastomeric profile starting from which it is provided) is made of elastomeric material with shape memory, i.e., material adapted to assume the initial configuration even after it has been subjected to a long-term deformation. This type of material is used already to provide gaskets that are typical of other technological sectors and is instead an absolute novelty in the field of reinforced doors. It is evident that such materials allow to ensure that tightness to air infiltrations persists over time and remains substantially constant throughout the life of the door 1.
It is deemed useful to specify that the curved band 36 has the tip substantially aligned with the lateral profile of the main body 34.
This particular shape ensures that upon contact of the lateral edge of the main body 34 with an abutment surface 40 (for example of the frame 2) a portion of the band 36 also abuts against the abutment surface 40.
At this arrangement of abutment on the surface 40, between the band 36 and the main body 34 there is a closed compartment 41 that constitutes a hindrance for air infiltrations.
It is useful to point out that in order to increase tightness to air infiltrations and therefore the thermal and acoustic performance of said door 1, the leaf 3 comprises preferably two substantially mutually opposite gaskets 15, i.e., provided with oppositely oriented bands 36.
Upon closure of the leaf 3, with its juxtaposition against the frame 2, each band 36 is therefore forced on a respective abutment surface 40 with a thrust that depends on the pressure, caused by any drafts, that is present upstream of said band 36. In practice a path for sealing against air infiltrations is provided in which, if an unwanted infiltration occurs at one of the two gaskets 15 that are present, the shape of the other gasket is such as to increase the force with which the respective band 36 is pushed against the respective abutment 40 following the increase in pressure upstream thereof caused by the above cited air infiltration. Therefore, this constructive solution ensures a considerable reduction of air infiltrations, up to their total elimination.
Conveniently, the present invention solves the problems described earlier, proposing a reinforced door 1 provided with adjustable break-in resistant hinges 10, for the optimum hermetic closure of the door with an increase in thermal and acoustic efficiency. It is in fact easy to notice that the hinges 10 are constituted by components that are very strong in relation to their size and their compactness and are therefore particularly efficient against break-ins. At the same time, the hinges 10 have a plurality of adjustments that make them more convenient and effective with respect to those of the known type and allow the installation technician to align the leaf 3 with the frame 2 in an optimum manner.
Positively, the reinforced door 1 therefore can be installed simply, ensuring an optimum thermal and acoustic seal, even if the frame has been fitted on the respective opening without strictly complying with the parameters prescribed by the manufacturer: this occurs indeed by way of the many adjustments that are possible by means of the hinge 10.
Advantageously, the reinforced door 1 has a low thermal transmittance and therefore thermally insulates in an optimum manner the installation space with respect to the outside.
Advantageously, the reinforced door 1 has good thermal insulation and therefore acoustically insulates in an optimum manner the installation space with respect to the outside.
Validly, the reinforced door 1 has substantially low costs, is relatively simple to provide in practice and is safe in application.
The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims; all the details may furthermore be replaced with other technically equivalent elements.
In particular, suitable architectural elements 100 are adopted to provide the threshold below the leaf.
These elements 100 are inserted in the flooring and cause an interruption of the flooring with consequent blocking of heat flows.
These elements 100 are preferably made of metal profile or folded metal plate, which can be coated with paints among the ones cited earlier. The compartment 101 inside the element 100 is filled (preferably by blowing) with the thermal insulation materials described earlier.
The presence of a flap 102 that is folded inwardly to interrupt any heat flow through the walls of said element 100 is provided from the outset.
In the examples of embodiment shown, individual characteristics, given in relation to specific examples, may actually be interchanged with other different characteristics that exist in other examples of embodiment.
In practice, the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.
Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.

Claims

A reinforced door of the type that comprises at least one frame (2) provided with at least one upright and at least one crossmember that can be installed in an opening of a wall and at least one leaf (3) provided with at least one perimetric border (4), with at least one panel (5) that constitutes a face of said leaf (3), with internal reinforcement and stiffening elements (6), with insulating material (7) and with a lock (8) controlled by respective bolts (9), between said frame (2) and said leaf (3) there being interposed at least one mutual connection hinge (10), characterized in that said hinge (10) comprises at least one plate (11) that can be coupled detachably to a respective upright, said plate (11) being provided with at least one hollow protruding block (12) for the pivoting of a slider (13) for supporting the hinge (14), between said plate (11) and said slider (13) there being means for adjusting their mutual arrangement, perimetrically to said leaf (3) there being at least one sealing gasket (15) intended to abut against a corresponding surface of said frame (2) exclusively at predefined conditions of mutual alignment thereof that derive from the mutual arrangement of said plate (11) and said slider (13).
The reinforced door according to claim 1, characterized in that said upright comprises a rear profile (16), which is coupled stably to the installation wall, and a front profile (17), which can be mated with the front one (16), delimiting a compartment, a corner support (18) being coupled rigidly to said rear profile (16) and being provided with respective threaded seats (19), said plate (11) comprising slots (20) that are substantially complementary to the threaded seats (19) of said support (18) for its mating, with an adjustable arrangement, to said profile (16) by way of threaded elements (21).
The reinforced door according to claim 2, characterized in that said slots (20) are four in number, each having a substantially angular configuration that comprises two substantially rectilinear portions that are incident and mutually blended.
The reinforced door according to claim 1, characterized in that said slider (13) is constituted by a U-shaped band that is provided, on the two portions (21), which face each other and are mutually opposite at a mutual distance that is slightly larger than the length of said hollow protruding block (12) of said plate (11), a through channel (22), in the active configuration a connecting pivot (23) being accommodated simultaneously in said through channel (22) and in the cavity of said protruding block (12).
The reinforced door according to claim 4, characterized in that said through channel (22) and said cavity of said block (12) are threaded identically, said connecting pivot (23) being constituted by a screw that has a diameter and a thread that are complementary to those of said through channel (22) and said cavity.
The reinforced door according to claim 5, characterized in that said block comprises at least one threaded transverse hole (25) that leads to said cavity for the accommodation of at least one respective grub (26) for locking said connecting pivot (23).
The reinforced door according to one or more of the preceding claims, characterized in that said slider (13) comprises at least one threaded duct (27, 29), which is perpendicular and oblique with respect to said through channel (22), for the accommodation of a respective threaded pin (28, 30), the tip of which abuts against said plate (11), the rotation of said pin (28, 30), which corresponds to the screwing and unscrewing thereof, in the respective duct (27, 29), adjusting the arrangement of said slider (13) with respect to said plate (11) for the consequent spacing/approach of the threaded duct (27, 29) with respect to said plate (11), imposed by the threaded pin (28, 30).
The reinforced door according to one or more of the preceding claims, characterized in that at least one component of said leaf (3) and said frame (2) comprises at least one outer coating layer constituted by insulating paints and at least one internal cavity of said leaf (3) and said frame (2) accommodates a thermal insulation material that is inserted therein by means of a process such as blowing, dry spraying and the like.
The reinforced door according to claim 8, characterized in that said insulating paints comprise, in a dispersion, at least one substance selected among particles of insulating oxides, ceramic nanospheres, ceramic micro- and nanobubbles, oxide micro- and nanobubbles and the like.
The reinforced door according to claim 9, characterized in that said thermal insulation material comprises at least one material selected preferably among cellulose fiber, aerogel, sintered expanded polystyrene, expanded polymers.
The reinforced door according to claim 10, characterized in that all the components of said leaf (3) and said frame (2) comprise at least one outer coating layer constituted by insulating paints and all the internal cavities of said leaf and of said frame accommodate a thermal insulation material that is inserted therein by means of a process such as blowing, dry spraying and the like.
The reinforced door according to one or more of the preceding claims, characterized in that said at least one sealing gasket (15) has a closed rectangular shape with dimensions that are substantially similar to those of said leaf (3), the cross-section of said gasket (15) comprising a base main body (34), which defines internally a closed chamber (35), and a curved band (36) that protrudes substantially from the outer centerline portion of said main body (34).
The reinforced door according to one or more of the preceding claims, characterized in that said leaf (3) comprises an internal lever system (37), which is controlled by a movement control element (38) that can be actuated from the outside in order to move at least one slider (39) from an inactive configuration, at which said slider (39) is accommodated substantially in a respective area of the perimetric border (4) of said leaf (3), to an active configuration, at which said slider (39) protrudes with respect to the perimetric border (4) of said leaf (3) for the hermetic elastic forcing of the gasket (15) that surmounts it against a corresponding face of said frame (2).
The reinforced door according to one or more of the preceding claims, characterized in that said at least one slider (39) has an angular shape, being accommodated along the perimetric border (4) of said leaf (3), at a corner thereof.