WO2006079365A1

WO2006079365A1 - Frame for buildings

Info

Publication number: WO2006079365A1
Application number: PCT/EP2005/009571
Authority: WO
Inventors: Giuseppe Esposito
Original assignee: Palladio Trading S.R.L.
Priority date: 2005-01-31
Filing date: 2005-09-06
Publication date: 2006-08-03
Also published as: WO2006079365A8; ITVI20050027A1

Abstract

A frame for buildings, which can be used in particular for doors, windows and facades, and having high sound and heat insulation properties comprises a profile (10) on which, on the outside (12) or inside (13) thereof, a plurality of shaped portions (21) made from insulating, ballistic, self-extinguishing and/or burglary-resistant material are fixed; the external finishing of the frame is carried out by means of a coating section bar (30), which is positioned above the shaped portions (21). It is thus possible to transform a normal frame into a heat insulated frame or a frame having fire retardant, burglary-resistant and/or anti-projectile characteristics quickly and operating with the frame already mounted, furthermore reducing processing time and the labour costs.

Description

FRAME FOR BUILDINGS

The present invention refers , in general , to a frame for buildings , which can usually be used for doors , windows and faςades , of the thermal cutting type , i . e . having high heat and sound insulation properties . Moreover, the invention allows a normal frame to be transformed into a heat insulated frame in a simple and quick manner and operating with the frame already in use , in such a way reducing the intervention times and costs .

The main characteristics of doors and windows must include , in particular, good resistance to the action of atmospheric agents , such as air, wind and water . Moreover, doors and windows must be able to allow the rooms of buildings to be sound insulated from noises coming from the outside , which can disturb the normal recreational and/or work activities of individuals . One can generalise by saying that , in practice , doors and windows act as filtering elements against atmospheric agents and, more generally, from the external atmosphere .

These prerogatives must in any case be married with further prerogatives of flexibility of the frame , which comprises fixed parts and mobile parts , in order to ensure suitable change of ambient air,- therefore , it is clear that such parts must possess suitable characteristics of lightness , in order to be able to be moved by the user without particular problems , and of perfect hermetic sealing, with the frame closed, so as to be able to ensure the foreseen insulation .

Frames made from wood are well -known to be simple to build and display excellent heat insulation properties , thanks to the good insulating characteristics of wood . However, due to the increased requirements in relation to the size of frames and to the properties of the glass panels to be mounted inside (which are increasingly thick and heavy, to help with insulation and to fight against possible vandalism) , the frame is increasingly made from wood and/or metal materials , such as aluminium and/or steel , as well as from wood and/or plastic materials , like PVC .

It is known that metal section bars have good resistance to atmospheric agents , also in the case in which they are used to make a large frame ,- on the other hand, it is also known that such materials do not have the necessary heat insulation characteristics , above all in the case in which it is necessary to keep a certain room temperature in the presence of a relatively low outside temperature . Regarding this , metal frames , of the so-called thermal cutting type , are still known, in which a material with low heat conduction, which limits the passage of heat from the inside to the outside , is arranged between the outside and the inside of the metal profile . Such types of frames prevent the formation of thermal bridges , usually along the perimeter of doors and windows ; on the other hand, however, the determine the occurrence , in certain outside temperature conditions , of cold areas on the outside wall of the frame ; these areas are responsible for the transmission and, consequently, the loss of heat energy, which passes from the inside to the outside .

Moreover, such conditions determine the occurrence of condensation that tends to accumulate along the inner perimeter of the door or window, with consequent formation and proliferation of mildew and other bacterial colonies .

As already stated, the conventional thermal cutting profiles can be carried out with analogous or different materials ; for example , doors and windows can include an outer profile made from metal (such as steel ) and an inner profile made from wood, which can be replaced, alternatively, with a profile made from plastic material (such as PVC) . Moreover, in some cases , the different materials are coupled longitudinally thanks to the special configuration of their sections , which respectively comprise recesses and proj ections , just as it can be foreseen to use resins , which are inj ected during the assembly of the frame in order to increase the cohesion between the coupled sections forming a barrier suitable for preventing the transmission of heat between the different temperature gradients inside the room and outside .

As already stated previously, however, the conventional thermal cutting profiles have the serious drawback of being subj ect to the bimetal effect ; in practice, the outside and the inside of the frame , being at different temperatures , undergo different thermal dilations , with relative deformation of the frame (an effect that is even greater in the case of aluminium frames) and consequent problems in closing it , of infiltration of atmospheric agents , as well as of heat dissipation and of noise .

Moreover, in conventional thermal cutting profiles , the insulating material is arranged at the centre of two tubular members and also assumes a structural function; this necessarily means a reduction in the mechanical strength characteristics of the frame .

Finally, conventional thermal cutting profiles have difficulties in the glazing step, since the frame cannot be pressed excessively, otherwise the insulator gives way . The purpose of the present invention is , therefore , that of avoiding the aforementioned drawbacks and, in particular, that of making a frame for buildings with high heat and sound insulation in a particularly easy, quick and cost -effective manner .

Another purpose of the present invention is that of transforming a normal frame for buildings into a heat insulated frame for buildings quickly and operating with the frame already mounted, thus reducing the operating time and costs .

A further purpose of the invention is that of making an frame for buildings with high sound and heat properties , which furthermore maintains excellent mechanical properties , consequently maintaining the characteristics of safety, operability and ease of movement (open and closed) by the end user . The last but not least purpose of the invention is that of making a frame for buildings with high sound and heat properties , which also allows the risk of formation of condensation to be reduced, avoiding the occurrence of mildew and the proliferation of bacteria . These purposes , according to the present invention, are accomplished by making a frame for buildings with high sound and heat properties , according to the attached claim 1.

The characteristics and advantages of a frame for buildings with high sound and heat properties , according to the present invention shall become clear from the following description, given as a non-limiting example , referring to the attached schematic drawings , in which :

- Figure 1 is a partial perspective view of a frame for buildings with high sound and heat properties , according to the invention .

- Figure 2 is a partial cross section view of the frame according to figure 1.

With reference to the aforementioned figures , the profile of the frame , generally made from metal , is generically indicated with 10 , a layer of glue suitable for fixing a plurality of shaped portions 21 in position is indicated with 20 , the double-sided tape is indicated with 40 , whereas a shaped section bar, which constitutes a finishing coating of the frame , is indicated with 30. The invention, whilst having its origin in the field of sound and heat insulation of frames , to carry out which it is necessary to make the shaped portions 21 from insulating material , it also has useful applications in other fields and, therefore , the use of different materials to make the portions 21 allows fire-retardant frames (with fire-resistant materials) , anti -proj ectile frames (with ballistic materials) , and anti -infraction frames (with anti -vandalism and burglary-resistant materials) , respectively, to be obtained . According to the invention, the portions 21 can also be installed both inside (part 13 ) the frame (in other words towards the portion of frame visible from inside the building) and outside (part 12 ) the aforementioned frame ( in other words towards the portion of frame visible from outside the building) ; in any case , such portions 21 are not positioned in the middle of said frame .

In particular, by placing the insulator outside the frame , as illustrated in figure 1 , the inside of the frame remains at a higher temperature , with respect to that which can be obtained with a conventional frame , consequently reducing the thermal bridges , the problems of closing the frame , of infiltration of atmospheric agents and of noise and the risk of formation of condensation (improvement of the frost point ) . The insulation of the metal profile 10 , which per se has high heat conductance , is thus obtained by placing a series of shaped portions 21 of insulating material at the outside 12 or the inside 13 of the profile 10 , said shaped portions 21 firstly being placed and kept in position by means of strips of double-sided tape 40 and then fixed definitively with a layer of polyurethane glue 20. In reality, such an attachment method is not the only one to be carried out , since the portions 21 can also be fixed mechanically, for example through the help of screws . In particular, it is foreseen to shape the portions 21 in the form of rods and/or tiles , as shown in detail in figure 1 , and to position the rods and/or tiles in a row one behind the other fitting the front proj ections of each rod/tile in the respective rear recesses . Alternatively, the rods and/or tiles can also be piled up to make different thicknesses , maintaining the modularity of the structure .

In preferred example embodiments of the invention, the portions 21 of insulating material can be made from cork; the selection of such a type of material is extremely advantageous , since cork has a whole series of advantageous characteristics , such as the possibility of being varnished, resistance to fire , to humidity and to mildew, as well as the possibility of being totally recycled .

The construction of the frame , both of the thermal cutting type and of the flame-retardant , anti - proj ectile or burglary-resistant type , with the methods described above , is particularly easy, quick and cost - effective .

Indeed, firstly, it is possible to transform a normal frame into a heat insulated frame quickly and operating with the frame already mounted, by simply positioning and fixing the portions 21 of insulating material on the outside 12 of the profile 10. This also results in a reduction of the time and cost for carrying out the frame .

Furthermore , the solution obj ect of the invention allows the glazing operations to be carried out with ease ; indeed, the side not coated by the portions 21 of insulating material can be glazed with great ease and simplicity .

The external finishing of the frame can also be easily changed, by simply replacing the finishing coating 30 ; as a result of this , also in this case , there is a simplification of the maintenance operations .

Moreover, according to the present invention, it is possible to select the level of heat insulation by varying the thickness and/or type and/or morphology of the portions 21 and also the level of sound insulation can be improved by increasing the thickness of the insulation or by changing the type of insulating material adopted .

The adoption of an additional gasket 22 , shown in detail in figure 2 and positioned between the shaped portions 21 , also allows the heat and sound insulation of the entire structure to be increased . From the description that has been made the characteristics of the frame for buildings with high sound and heat properties , obj ect of the present invention, are clear, j ust as its advantages are also clear .

In particular, amongst the most important advantages we note : the insulation can be installed both inside and outside the frame ,- - the construction of the frame is particularly easy, quick and cost-effective ;

- it is possible to transform a normal frame into a heat insulated frame quickly and operating with the frame already mounted, thus reducing the operating time and costs ,-

- the mechanical capabilities remain equal to those of the cold profiles ;

- it is possible to carry out a glazing operation of the frame with extreme ease and simplicity, at the possible side of the frame not covered by the insulator ;

- there are no deformations of the frame due to the temperature difference between inside and outside , nor the consequent problems of closing the frame , infiltration of atmospheric agents , noise , etc . ;

- the risk of formation of condensation is reduced, with respect to the' prior art and there is an improvement of the frost point ; the external finish of the frame can easily be changed, with consequent simplification of the maintenance operations ;

- it is possible to select the level of heat insulation and improve the level of sound insulation by simply operating on the insulating material adopted;

- it is possible to further increase the heat and sound insulation thanks to the simple adoption of an additional gasket .

Finally, it is clear that numerous variants can be brought to the frame for buildings with high sound and heat properties , obj ect of the present invention, without for this reason departing from the novelty principles inherent to the inventive idea , j ust as it is clear that , in the practical embodiment of the invention, the materials , the shapes and the sizes of the illustrated details can be whatever according to the requirements and they can be replaced with others that are technically equivalent or that improve them.

Claims

1. Frame for buildings , which can be used in particular for doors , windows and faςades , of the type comprising at least one shaped profile (10 ) , characterised in that a plurality of shaped portions (21) are fixed onto said profile ( 10 ) , at least one section bar (30 ) for covering and finishing the frame being positioned over said shaped portions (21 ) .

2. Frame for buildings according to claim 1 , characterised in that said shaped portions (21 ) are made from insulating material .

3. Frame for buildings according to claim 1 , characterised in that said shaped portions (21) are made from anti -proj ectile ballistic material , with high noise-proof , fire retardant and/or burglary-resistant characteristics .

4. Frame for buildings according to claim 1 , characterised in that said shaped portions (21) are fixed at the outside ( 12 ) and/or inside ( 13 ) of said metal profile ( 10 ) , said outside ( 12 ) being the part of the frame directly visible from the outside of the building, whereas said inside ( 13 ) is the part of the frame directly visible from the inside of the building .

5. Frame for buildings according to claim 1 , characterised in that said shaped portions (21) are placed and kept in position by means of double-sided tape (40 ) and then fixed with glue (20 ) .

6. Frame for buildings according to claim 1 , characterised in that said shaped portions (21) are placed and kept in position through mechanical fastening .

7. Frame for buildings according to claim 1 , characterised m that said shaped portions (21) are made in the form of rods and/or tiles , with proj ections and recesses , and are positioned in a row by fitting the proj ections of each rod/tile into the respective recesses .

8. Frame for buildings according to claim 7 , characterised in that said rods and/or tiles are piled up to obtain different thicknesses , achieving a modularity of the structure .

9. Frame for buildings according to claim 2 , characterised m that said shaped portions (21) of insulating material are made from cork .

10. Frame for buildings according to claim 1 , characterised in that said shaped portions (21) have variable thickness and/or type and/or morphology .

11. Frame for buildings according to claim 1 , characterised in that said shaped portions (21) are predisposed for housing at least one sealing gasket (22 ) , suitable for increasing the heat and sound insulation of the frame .