ES2346970T3 - PROFILE ELEMENT FOR TRAINING BLINDS. - Google Patents

Abstract

A plastic window shutter consists of a series of interlocking profiled plastic battens forming a front wall and a back wall which are separated by a void. The void is part-filled with insulating material and linked to the front wall by an aperture (7). The insulating material is esp. part of a noise-deadening element (8) which is in-line with the aperture (7).

Description

Shaped element to form blinds roller.

The present invention relates to an element profiled according to the preamble of claim 1.

A profiled element of this type can be joined articulated with other profiled elements respectively adjacent to constitute a roller blind, and presents a front wall and a rear wall that are mutually separated and among which there is at least one cavity into which a opening made in the front wall and in which a soundproofing material.

The document DE-A-2505682 unveils a profiled element adapted to join in an articulated manner with other profile elements respectively adjacent to constitute a roller blind, and that has a wall front and a back wall that are mutually separate and between which there is at least one cavity in which a opening in a wall and in which a material is arranged heat insulating

This document describes a profile of heat-resistant roller blind, in particular for doors, windows  and the like This roller blind profile can include cover elements on its two open front faces or on the cavity a rigid foam bar is introduced. Also described that the narrow longitudinal faces of the rigid foam bar are provided with a profile that presents the union mechanism with which profiles can be joined to constitute a blind roller.

In a special embodiment a roller shutter profile with a superior joint mechanism and a lower one, which completely surrounds a rigid foam core. It is also explained that a recess could be left on a wall of this profile of roller blind roller blind, which means that this part of the wall would be missing along the entire profile of roller blind and that the rigid foam core would be visible inside the roller blind profile.

In the document US-A-4536929 describes a roller blind that has improved properties of thermal insulation and whose cavities are filled with foam. He Roller shutter profile features openings in a wall groove shape to improve the mechanical stability of the profile roller blind. It is also explained that in the cavities of the Roller blind is introduced a foamed polymeric material, for example polyurethane, it will decisively improve the properties profile roller blinds.

The document US-A-46298982 describes an item profiling adapted to join in an articulated way with others respectively adjacent profiled elements to constitute a roller blind, and presenting a front wall and a wall later that are mutually separate and among which there are Less a cavity. Inside the cavity a insulating material that has to improve the insulation properties thermal profile element or roller blind formed with this.

For example, document DE 3032946 gives Know a profiled element. In this document they are announced blinds and profiled elements for blinds roller. The profiled elements consist of hollow profiles filled with a soundproofing material. Front wall oriented towards the interior space is perforated to allow sound input Through the profiled elements and the roller blinds produced with these have to achieve a acoustic isolation. The sound has to enter the element profiled through the numerous perforations and penetrate the soundproofing material that is located behind them and that Fill the cavity of the profiled element. However, the Soundproofing properties of the profiled elements of this type may not always meet the requirements imposed on same.

Therefore, one objective is to improve a profiled element of the type indicated in the introduction, particularly with regard to its properties of soundproofing.

This objective is met according to the invention. by means of a profiled element with the characteristics indicated in claim 1

According to the invention, the element profiling is configured such that the material of Soundproofing is part of at least one element of soundproofing, the rear wall has at least one opening, and the soundproofing element is arranged oriented towards said opening, at least, in the area of the opening.

This solution is simple and has the advantage that sound can enter through the opening inside the profiled element and spread in it. Since the element of Soundproofing does not completely fill the cavity because of its configuration and that can be moved at least in the area of the opening away from it, when the sound enters the element of Soundproofing may already be separated from the front wall or be It can be separated from it by acoustic pressure. Through the separation between the soundproofing element and the front wall, the sound propagates so that it comes into contact with at least the most of the surface of the soundproofing element and is absorbed by this one. This allows to considerably improve the Soundproofing properties of the roller blind in comparison with conventional roller blinds, in which the cavity is completely filled with the material of soundproofing.

However, in another embodiment advantageously, the soundproofing element may be arranged at less in the area of the opening and oriented towards said opening next to the rear wall opposite the front wall or next to the face of the front wall opposite the back wall.

Since the soundproofing element has essentially mat form, the profiled element according to the Invention can be carried out economically.

In an advantageous improvement of the invention, the soundproofing material may consist of a fibrous material With materials of this type can be achieved easily good sound absorption properties so economical

In this context it may be advantageous that the Soundproofing material is a fleece material. The materials fleece are characterized by excellent properties of Sound absorption and good processing properties.

In an alternative embodiment, the Soundproofing element may be formed by a membrane, preferably plastic. With such a membrane you can selectively absorb the desired sound frequencies depending of the material thereof.

In an advantageous improvement of the invention can be provided a single opening in the wall front, cross-sectional view. In particular, the configuration according to the invention of the soundproofing element with a single cross-sectional opening also reduces the number of openings in the profiled element in the direction longitudinal of the same and simplify its production.

It may be advantageous that, seen in section transverse, the width of the opening corresponds to less than one third and more than a tenth, preferably less than a quarter and more of an eighth, of the width of the front wall. It has been proven that with these specifications you can achieve good effects of Soundproofing economically.

It may also be advantageous if they are provided a plurality of mutually separate openings in the longitudinal direction of the profiled element. This also allows Improve the soundproofing effects.

In this context it can also result favorable that the openings are mutually separated at intervals regular. In this way the effect of soundproofing.

In this context it can also result favorable that the distance between openings is less than or equal to extension of the opening in the longitudinal direction of the element profiled

It may also be advantageous if the extension of the opening in the longitudinal direction of the profiled element is less than or equal to twice the extension of the opening seen in the cross-section of the profiled element
side.

According to the invention another one is provided opening in the back wall. This other opening, which leads to the cavity or an additional cavity of the profiled element, allows further improve the soundproofing properties of the roller blind.

In this context it may be favorable that the openings of the front wall and the back wall have essentially the same configuration.

In an advantageous improvement of the invention, between the front wall and the back wall may be provided at least one intermediate wall. This also allows to improve additionally the acoustic technical properties.

In this context it may be advantageous to arrange the intermediate wall such that between the front wall and the intermediate wall, a first cavity is formed and between the rear wall and the intermediate wall a second cavity is formed. This arrangement of successive cavities allows the soundproofing properties to be further improved.
tion.

You can also improve the properties of Soundproofing if the front wall and wall openings posterior are aligned with each other.

It can also be advantageous that the wall intermediate, present at least one opening that communicates the two cavities with each other. In this context it may be advantageous that the intermediate wall opening is aligned with the opening of the front wall or back wall. In this way, the sound can cross the roller shutter completely, being absorbed into mostly during its tour of the element of soundproofing.

It may also be favorable that the element Soundproofing extends throughout the entire element profiled This allows to simplify the production.

In an advantageous improvement of the invention, the hollow profile may have fixing devices to fix the soundproofing element. This way you can avoid an unintended displacement of the element of soundproofing.

Fixing devices may present flange housings and the soundproofing element can present a flange with which it can be fixed in the housings of flange. In this way a positive union between the profiled element and the soundproofing element.

The profiled element can be configured at less in two pieces, with a first profiled section, which includes the front wall, and a second profiled section, which includes the back wall This allows to simplify the assembly of the element of soundproofing. Thus, the first section being removed profiled, the soundproofing element can be placed in the second profiled section and then the first profiled section to enclose the element of soundproofing.

It can also be advantageous that the wall intermediate is arranged in the second profiled section.

It may also be advantageous for the fixing device is arranged in the second section profiled This allows to simplify the fixing of the element of soundproofing.

To facilitate the assembly of the first and the second profiled section, the first profiled section can be join with the second section profiled by means of a device hitch.

In this context it may be favorable that the first profiled section can be fixed as a cover on the second profiled section.

It can also be advantageous that the wall intermediate is formed by a profiled insert inserted between the front wall and the back wall.

If the profiled part inserted presents support sections with which it rests between the front wall and the rear wall, a secure part support can be guaranteed profiled inserted.

In an advantageous improvement of the invention, the membrane can be fixedly connected with the piece profiled inserted.

The following describes in more detail the effect and operation of the invention by means of several Examples of realization

In the drawings:

- Figure 1 shows a sectional view of a first embodiment of a profiled element according to the invention;

- Figure 2 shows a sectional view of a second embodiment of a profiled element according to the invention;

- Figure 3 shows a sectional view of a third embodiment of a profiled element according to the invention;

- Figure 4 shows a sectional view of a fourth embodiment of a profiled element according to the invention;

- Figure 5 shows a sectional view of a fifth embodiment of a profiled element according to the invention;

- Figure 6 shows a view of the wall front of several profiled elements according to the invention according with figure 1.

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Figure 1 shows a sectional view of the profiled element 1 according to the invention. The profiled element 1 it is formed by a first profiled section 2, which has a front wall 3, and a second profiled section 4, which has a back wall 5. The first and second profiled section they enclose a cavity 6.

The first and second profiled sections can be made for example of plastic and can be produced in a way known by the extrusion process. The first and the second profiled section can be made of materials different or of the same material. The first and the second section Profiling can also be made for example from aluminum.

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The front wall 3 has an opening 7 that flows into cavity 6. In cavity 6 a Soundproofing element 8 consisting of a fibrous material. In In this case, the soundproofing element 8 consists of a material fleece.

On the rear wall 5 another one is provided opening 9 that is aligned with opening 7. Also, in the second profiled section 4 two other cavities are configured 10 and 11. Cross-sectional views, cavities 10 and 11 are closed.

The second profiled section also has a connecting element 12, located on the right in the representation of Figure 1, which has a fixing flange 13 which is linked in an articulated manner with the second profiled section to through a hinge of film 14. On the left side of the second profiled section shown in figure 1 is a fixing housing 15 whose internal dimensions correspond  essentially to the outer dimensions of the fixing element 13. Thus, the fixing element 13 of an element adjacent profiling can be hooked in a known way in the fixing housing 15. Lining up several elements Profiles form a roller blind.

In the representation shown in Figure 1, the left part of the first profiled section is set essentially hook-shaped with a hook-shaped section 16 that grabs a retention section 17 of the second section profiled 4. The right part of the first profiled section 2 shown in figure 1 has a retention peak 18 which is grabs in a retention housing 19 of the second section profiled 4. The first profiled section 2 is made of a elastic material and can be mounted on the second section profiled 4 by first introducing the retention peak 18 in the retention housing 19 and engaging it after elastic shape on retaining section 17. The dimensioning is choose in such a way that the first profiled section 2 is attached on the second profiled section 4 under slight tension previous.

The two openings 7 and 9 are essentially circular and have essentially the same dimensions. At represented example, the width or diameter corresponds to about a quarter of the total width of the wall frontal.

Instead of circular openings it is also they can use elongated openings, the length corresponding in the longitudinal direction of the bar, that is, perpendicularly to the representation of figure 1, at most twice the opening width In longitudinal direction, they are provided a plurality of mutually spaced openings at intervals regular, the distance between adjacent openings being smaller or same as the width of an opening in the representation of the Figure 1. This arrangement of openings is represented by example in figure 6.

The dimensions of the soundproofing element 8 they have been chosen in such a way that their height H_ {g} is less than the height H_ of the cavity 6 in the representation of figure 1. The height of the soundproofing element is approximately 15% less than the height of the cavity, to ensure in this way a mobility of the soundproofing element 8 in the axial direction of the opening, at least in the area of the opening 7. Since at use the roller blind this is usually rolled over a roller or the front wall is located in a vertical plane, it may happen that the soundproofing element 8 leans against the inner face of the front wall 3. However, the pressure acoustics can move it away from the front wall again.

Seen through the opening 7 of the wall front 3, the soundproofing element completely covers said opening 7.

In a transverse direction at height, it is say, in the horizontal direction in the representation of figure 1, the width of the soundproofing element can be sized such that it is slightly narrower than the width inside the cavity 6. In the representation of figure 1, the width of the soundproofing element 8 is at least 10% more narrow than the interior width of the areas of the cavity 6, or of the second profiled section, adjacent to the element of soundproofing 8.

The following explains in more detail the effect and operation of the invention.

As already mentioned in the introduction, by fitting fasteners 13 into housings of fixing 15 of respectively adjacent profiled elements is It forms a roller blind. This can be guided in a known way by side guide rails and roll using a curved rail or a roller

This is known in the current state of the technique. When the blind is unwound, that is, for example  to close the opening of a piece of furniture in a room, the wall Front 3 is oriented towards the interior space. The sound of interior space flows into cavity 6 through the opening 7, where it can be absorbed by the soundproofing material of the Soundproofing element 8. Due to the configuration of the soundproofing element 8, between the front wall and the element Soundproofing 8 subtracts a free space that allows the sound spread through cavity 6 to take advantage of all the surface of the soundproofing element for absorption of sound. Since the soundproofing element can be moved to less in the area of the opening in the axial direction of the latter, achieves a good acoustic technical decoupling between the element of 8 soundproofing and profiled element. If because of the winding and unrolled the blind the soundproofing element is supported against the front wall 3, the acoustic pressure of the incoming sound can roll back the soundproofing element to deploy Thus the effect of sound absorption. In comparison with the conventional solutions, in which the cavity is completely filled with a soundproofing material, in the case of the solution according to the invention the sound can be better propagated by the cavity to achieve greater use of absorption properties of sound of the soundproofing element 8. In addition, in this way It can reduce the amount of openings in the front wall. To the at the same time the assembly of the profiled element according to the invention. Especially in the embodiments that are not configured in two or more pieces, but the profiled element it is made in one piece, the soundproofing element 8 is you can enter the profiled element for example laterally. Since it is housed in the cavity, it can be introduced without problems in the profiled element.

The second opening 9 allows to improve additionally the soundproofing properties. Due to the Soundproofing element configuration 8, it is also arranged mobile with respect to said opening. This configuration allows more sound reflections to occur in Soundproofing element and sound can leave the cavity 6 through the opening 9 very attenuated and cushioned.

In another embodiment, which does not apply to the invention and which is not represented in this document, the soundproofing element 8 is arranged at least in the area of the opening 9 oriented towards said opening next to the face of the rear wall 5 opposite cavity 6, 22. This allows to improve additionally the soundproofing.

A more detailed explanation is given below. second embodiment of the invention. To avoid repetitions, only the differences with respect to the first embodiment, and the same components are provided with the same reference symbols.

Unlike the first embodiment, the second embodiment has an intermediate wall 20 which is configured in one piece with the second section profiled. The intermediate wall 20 also has an opening 21 which is aligned with openings 7 and 9 and has the same dimensions what are you. The intermediate wall 20 forms another cavity 22 in the profiled element. It has been proven that through the wall additional intermediate 20 and opening 21 reflections occur additional within the additional cavity 22 that improve the soundproofing.

A more detailed explanation is given below. third embodiment of the invention, described in new only the differences with respect to the first form of realization to avoid unnecessary repetitions. The components The same are provided with the same reference symbols.

In the third embodiment, as Soundproofing element is used a plastic membrane, preferably polypropylene, instead of a fleece material. The soundproofing element 8 of the third embodiment It has 23 lateral flanges that are housed in accommodation of flange 24 of the second profiled section 4. In this way produces a positive bond between the soundproofing element 8 and the second section profiled 4. Due to the configuration of the soundproofing element 8 of the third embodiment, the soundproofing element 8 is subjected to a pre-tension and It constitutes a membrane. Between the soundproofing element 8 and the intermediate wall 20 there is another cavity. The configuration of the third embodiment allows to improve the behavior of vibrations of the soundproofing element 8. In addition, its position inside cavity 6 it is exactly defined.

A fourth form of embodiment of the invention, again explaining only the differences with respect to the previous embodiments. The equal components are provided with the same symbols of reference.

Like the third embodiment, the fourth embodiment has a soundproofing element  8 configured in membrane form. In the fourth form of embodiment, the soundproofing element 8 is also made of plastic and is arranged in a profiled insert 25 that It constitutes a membrane support. The profiled part inserted it has support sections 26 with which it rests within the profiled element 1 configured in one piece. The sections support 26 are subject to a slight pre-tension to ensure a secure hold of the profiled insert within the profiled element 1. The membrane can be produced by example by co-extrusion with the profiled part inserted

Figure 5 shows a fifth form of embodiment of the invention. To avoid repetitions, in this case also only the differences with respect to the first embodiment, and the same components are provided with the same reference symbols.

In the fifth embodiment, three profiled elements 1 are mutually joined by hinges  of film 14. The profiled elements themselves are configured in one piece. The rear wall has a configuration concave and constitutes a support section 27 on which it is supported the soundproofing element 8. The opening 9 is located in the support section 27. The distance between the support section 27 and the rear wall 5 and the front wall 3 is sized approximately the same as in the first embodiment. From this mode ensures the mobility of the soundproofing element 8 in the axial direction of openings 7 and 9.

The three profiled elements shown in the Figure 5 representation have essentially the same shape. The left profiled element is provided with the housing of fixing 15 and in the right profiled element is arranged articulated way a fixing element 13.

The roller blind can be shaped known joining the fixing housings 15 and the elements of fixing 13 of adjacent profiled elements.

The profiled elements and the blinds Rollers according to the invention allow to clearly improve the soundproofing properties compared to elements Profiles and the usual roller blinds. In addition, it also Simplify assembly.

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References cited in the description

The list of references cited by the applicant is only for the utility of the reader, not forming part of the European patent documents. Even when the references have been carefully collected, cannot be excluded errors or omissions and the EPO rejects all responsibility to this respect.

Patent documents cited in the description

DE 2505682 A [0003]

US 46298982 A [0005]

US 4536929 A [0004]

DE 3032946 [0006]

Claims (21)

1. Profile element adapted to articulate with other contiguous elements respectively adjacent to constitute a roller blind to close a piece of furniture, and having a mutually separate front wall (3) and a rear wall (5) between which there are less a cavity (6) in which a soundproofing material is arranged, characterized in that the soundproofing material is part of at least one soundproofing element (8), because the soundproofing element (8) is essentially mat-shaped , because an opening (7) made in the front wall flows into the cavity while in the rear wall (5) another opening (9) is provided, and because the soundproofing element (8) is arranged oriented towards said opening, to the less, in the area of the opening (7, 9). 2. A profiled element according to claim 1, characterized in that the height of the soundproofing element (8) is approximately 15% less than the height of the cavity (6). 3. A profiled element according to claim 1 or 2, characterized in that the soundproofing element (8) is placed in the cavity (6, 22) or slides into the cavity. 4. A profiled element according to one of the preceding claims, characterized in that the soundproofing element (8) is arranged on the face of the rear wall (5) opposite the front wall (3). A profiled element according to one of the preceding claims, characterized in that the soundproofing element (8) is arranged on the face of the front wall (3) opposite the rear wall (5). 6. A profiled element according to one of the preceding claims, characterized in that the soundproofing material consists of a fibrous material and / or a fleece material and / or a membrane. 7. A profiled element according to one of the preceding claims, characterized in that the soundproofing material consists of a plastic membrane. 8. Profile element according to one of the preceding claims, characterized in that the front wall is only provided an opening cross - sectional view. A profiled element according to one of the preceding claims, characterized in that, seen in cross section, the width of the opening corresponds to less than one third of the width of the front wall and more than one tenth of the width of the front wall, preferably less than a quarter and more than an eighth. 10. Profile element according to one of the preceding claims, characterized in that a plurality of mutually separate openings are provided in the longitudinal direction of the profile element (1). 11. Profile element according to one of the preceding claims, characterized in that the openings are mutually separated at regular intervals. 12. Profile element according to one of the preceding claims, characterized in that the distance between openings is less than or equal to its extension in the longitudinal direction of the profiled elements. 13. Profile element according to one of the preceding claims, characterized in that the extension of the opening in the longitudinal direction of the profile element is less than or equal to twice the extension of the opening seen in the cross section of the profile element. 14. A profiled element according to one of the preceding claims, characterized in that the openings of the front wall and the rear wall have essentially the same configuration. 15. A profiled element according to one of the preceding claims, characterized in that the openings of the front wall and the rear wall are aligned with each other. 16. Profile element according to one of the preceding claims, characterized in that the soundproofing element extends along the profiled element. 17. Profile element according to one of the preceding claims, characterized in that the hollow profile has fixing devices for fixing the soundproofing element. 18. Profile element according to one of the preceding claims, characterized in that the profile element is configured in at least two pieces, with a first profiled section (2), which includes the front wall (3), and a second profiled section (4) , which includes the back wall (5). 19. Profile element according to one of the preceding claims, characterized in that the fixing devices are arranged in the second profile section. 20. A profiled element according to one of the preceding claims, characterized in that the first profiled section can be joined with the second profiled section by means of a snap-in device. 21. A profiled element according to one of the preceding claims, characterized in that the first profiled section is adapted to snap in a lid on the second profiled section.