TENSIONING SYSTEM FOR CURTAINS

Description

[0001] The present invention relates to a tensioning system for curtains.

[0002] In particular, the present invention relates to a tensioning system for curtains, of the type comprising a cloth able to slide in a pair of uprights of a frame of an opening, for example a curtain to obscure, or, alternatively, a shielding net for mosquito, both horizontally and vertically scrolling, or, alternatively, any type of shield of an opening.

[0003] As it is known, a curtain comprises a cloth configured to obscure an opening, for example a cloth made of plastic material or of fabric, operated by a cord, or by a motor or by a rod to be retracted during the opening allowing the passage of light, or to be lying down, during the blackout. The opening and the closing of the curtain is, for example, in vertical fall, in which case the cloth is slidable in a pair of guiding uprights of a frame. Generally the guiding uprights are perpendicular to the floor and the cloth can slide vertically; the uprights can also be vertical and the cloth can slide horizontally. More particularly, known buttons, preferably made of plastic, slidable within the guiding uprights buttons, are inserted in the opposite sides of the cloth. The guiding uprights, since have a size larger than the geometric opening of the uprights, allow the cloth to remain inside the guides without escaping during the operation.

[0004] Another possible known solution is represented by a zip strip which is appropriately welded in the opposite sides of the cloth. This zip slides within known section members, preferably made of plastic, that guide the cloth in the upright, preventing the escape of the zipper section member, and hence of the cloth. The section member has substantially the same length as the upright and is retained in a thickness of the upright within a predetermined tolerance, which damps the horizontal displacement of the cloth, during the action of the wind. The known systems for curtains are rather noisy, especially when they are lying, due to the fact that the cloth can be invested by air currents which tend to abruptly move it between the uprights. The section member is fixed to the upright of the frame of a window and comprises a seat S for an edge or side of the cloth; during assembly, the edge of the cloth is slidingly inserted in a specific location through an opening of the section member, leaving the rest of the cloth comes out this (and from the upright) through a slot. The slot has an amplitude lower than the edge of the cloth, to retain the edge within the seat in the upright. The opposite edge of the cloth is similarly associated with a section member of the other upright of the frame. When the air acts on the surface of the cloth, the cloth moves the section member which, as said, is coupled to the upright with a predetermined tolerance, making bumping the cloth against it. On the other hand, rigidly tensioning the cloth between the uprights, for example by fixing the section member rigidly to the uprights, without leaving any margin of displacement, is not an effective solution, since in the long run the wind damages the cloth or however it loosens its coupling with the section member, and ruins the blinding apparatus.

[0005] A solution to this problem is to incorporate, within a pocket created by a tape of plastic material, or mixed plastic or fabric, or tissue, welded to the lateral edges of the cloth, or created by folding each edge on the same fabric of the cloth, a rod that acts an extending element of the cloth edges and allows the cloth to be arranged in extended configuration.

[0006] Shock-absorbing systems are also known, these systems comprising a tab or a plurality of tabs glued along the section member, to cushion the impact of the section member on the upright. However, even in these shielding systems it is necessary to leave the room for movement to the upright section member, which would prevent optimal tension of the cloth, even in the absence of wind. Moreover, the tabs are subject to damage, which causes the detachment from section member or loss of efficacy in absorbing the shot against the upright. In addition, their application is rather laborious, especially if carried out manually.

[0007] Some examples of know solutions are described in the following.

[0008] A first solution is described in the patent EP1905329 in which a window hanging has a hanging unit with an arresting unit and an etch primer, where the etch primer is mounted/mountable on and/or in an environment of a window. The etch primer and the arresting unit interact with each other in a magnetically attractive manner such that the hanging unit is mountable in the etch primer in a position variable and removable manner. The primer is designed as a magnetizable / magnetic metal band or magnetizable / magnetic metal strips. The primer is mountable on or in an area of the window parallel to a window edge of a window frame.

[0009] A second solution is described in the patent application TW201245565, in which a pull-to-stop sunshade comprises two spaced rails, a reel capable of self-rewinding, a curtain fabric capable of being wound on the reel and having a movable edge, two sliding seats respectively connected to two opposite ends of the movable edge and disposed slidably on the two rails, two metal strips respectively provided in the two rails and extending along its length, and two magnetic members respectively mounted on the two sliding seats and attractable to the metal strips. The core of this solution is the mechanism in which the magnetic attraction force between the magnetic members and the metal strips is always not less than the rewinding tension of the reel to generate the pull-to-stop function and provide the efficacies of simple structure and convenient operation.

[0010] A third solution is described in the patent EP2835490 in which a door assembly for covering an opening includes a curtain supported at a first end of the opening. The curtain includes a first lateral edge supporting at least one first curtain magnetic device. The door assembly includes a first track portion extending along a first opening side of the opening between the first end and an opposing second end. The first track portion includes at least one first magnetic assembly. The first curtain magnetic device magnetically couples with the first magnetic assembly of the first track portion such that the curtain is magnetically supported at the first lateral edge of the curtain.

[0011] A fourth solution is described in the patent DE3232820 in which a roller curtain, which comprises a winding tree, which is acted upon in a rotary manner and rotationally mounted, and a laterally guided curtain delimited at its free end by a crosspiece, is lockable against winding up of the curtain by permanent magnets which are arranged at the lateral ends of the crosspiece and interact with a magnetisable material, in particular a steel band insert, on or in lateral guide rails of the curtain.

[0012] A fifth solution is described in the patent EP2826943 that refers to a cordless pleating blind for covering an opening, which is delimited by a frame, in particular for covering a window or door opening. The pleated fabric web of the pleated curtain is guided in a plane parallel to the pane and can be displaced steplessly at different heights before the opening, wherein the fabric web is connected to only two fabric holding strips. The two fabric holding strips are held and guided on holding elements on the end side. The fabric web has a row of holes at its two edges, and wires, ropes or rods are provided on both sides of the opening, which pass through the holes of the fabric hole row.

[0013] However, the problem of these known systems used to maintain the cloth extended is that the cloth or the fabric of the curtain or of a mosquito net is not always in a perfect tensioning configuration, especially when they are invested by air currents which tend to move sharply causing it crash into the uprights of the compartment to be shielded. For this reason, for example, the known curtain systems are quite noisy, especially when they are extended.

[0014] The purpose of the present invention is to provide a tensioning system for curtains which economically allows to perfectly tend the curtain's cloth, avoiding damage of the cloth itself and ensuring that the cloth remains extended even under the action of the wind, thus having characteristics that overcome the limits that influence the tensioning systems previously described.

[0015] According to the present invention, a tensioning system for curtains is provided, as defined in claim 1.

[0016] For a better understanding of the present invention it is now described a preferred embodiment, purely by way of non-limiting example, with reference to the accompanying drawings, in which:

• Figure 1 shows a three-dimensional view of a tensioning system for curtains, according to the invention;
• Figures 2A-2B show schematic section views of assembling steps of the tensioning system for curtains, according to the invention;
• Figure 3 shows a three-dimensional view of a curtain comprising the tensioning system, according to the invention.

[0017] Referring to these figures and, in particular to the figure 1, a tensioning system 1 for curtains is shown, according to the invention. In detail, the tensioning system 1 is applied, by way of example, to a curtain 10 configured to obscure an opening and comprising a cloth 11 sliding vertically in seats S of section members of a pair of guide uprights 12a and 12b perpendicular to the floor, of which only the upright 12b is shown in the figure 1.

[0018] The tensioning system 1 comprises first magnetic means 2a, 2b coupled to the side edges 11a and 11b, the edge 11b only being shown in Figure 1, of the shielding apparatus, or curtain, 10 and second magnetic means 3a, 3b coupled to the vertical uprights 12a and 12b.

[0019] More precisely, the first magnetic means 2a, 2b are coupled to the side edges 11a and 11b as they are positioned inside pockets 13a and 13b respectively formed by the side edges 11a and 11b folded back on themselves inside the seat S of each upright 11a and 11b, or, alternatively, formed by means of tapes, made of plastic or of mixed plastic fabric, applied so as to join the side edges 11a and 11 b.

[0020] The second magnetic means 3a, 3b are coupled to the section members of the vertical uprights 12a and 12b as are placed inside a further seat S' adjacent to the seat S.

[0021] According to an aspect of the invention, as best shown in Figure 2, the first magnetic means 2a, 2b are elements, for example tubular, comprising ferromagnetic material.

[0022] According to another aspect of the invention, the first magnetic means 2a, 2b are made of metallic material.

[0023] According to another aspect of the invention, the first magnetic means 2a, 2b comprise a plurality of metal cylinders 2aa, 2ba alternated to plastic cylinders 2ab, 2bb, as shown, by way of example, in Figure 2A.

[0024] According to another aspect of the invention, the first magnetic means 2a, 2b are cylindrical metallic rods shaped so as to be suitable to be inserted vertically within the pockets 13a and 13b.

[0025] Advantageously according to the invention, the particular shape of the uprights comprising the seat S' allows to fit perfectly second magnetic means 3a, 3b.

[0026] Figure 2 shows, in particular, the steps of assembling the tensioning system to the curtain 10, consisting in the insertion of the first magnetic means 2a, 2b inside the pockets 13a, 13b formed at the edges 11a, 11b of the cloth 11 vertically sliding inside the vertical uprights 12a, 12b and of the second magnetic means 3a, 3b within the seats S' .

[0027] Figure 3 shows the curtain 10, comprising a horizontal handle bar 14, the two vertical uprights 12a and 12b, one for each side of the compartment to be shielded, and the cloth 11 having the side edges 11a and 11b sliding inside the vertical uprights 12a and 12b, and the tensioning system 1 that serves to couple magnetically the edges 11a and 11b with the section members of the vertical uprights 12a and 12b.

[0028] In use, the magnetic attraction exerted between the first and the second magnetic means, namely between the metallic tubular elements and the magnetic bars, makes sure that the curtain is kept perfectly extended, even under the wind action. In particular, both for curtain and for the mosquito shielding, this attraction remains effective or during the sliding of the net either when the cloth is completely unfolded, in closing position, even under the action of the wind.

[0029] Also under the strong wind action, if the metal tubular elements were detached from magnetic bars, when the action of the wind ceases the same metal tubular elements would return to its original position while maintaining the cloth in tension between the uprights.

[0030] Advantageously according to the invention, the curtain comprising the tensioning system according to the invention is a shading apparatus.

[0031] Still advantageously according to the invention, the curtain comprising the tensioning system according to the invention is a mosquito shielding.

[0032] Still advantageously according to the invention, the curtain comprising the tensioning system according to the invention is any shielding.

[0033] Therefore, the tensioning system for curtains according to the invention ensures that the cloth remains always perfectly extended also under the action of the wind.

[0034] Another advantage of the tensioning system for curtains according to the invention is the simplicity of construction.

[0035] A further advantage of the tensioning system for curtains according to the invention consists in being economic.

[0036] Finally, the tensioning system for curtains according to the invention is versatile, since it is easy to install both to the already installed curtains and to the new shading apparatus to be assembled.

[0037] Finally it is clear that the tensioning system for curtains described and illustrated here can be modified and varied without departing from the protective scope of the present invention, as defined in the appended claims.

Claims

1. Tensioning system (1) for curtains (10) comprising a length of cloth (11) slidably attached to the rails of uprights (12a, 12b) of a frame and first magnetic means (2a, 2b) coupled to side edges (11a, 11b) of the length of cloth (11) and second magnetic means (3a, 3b) coupled to the rails of uprights (12a, 12b), characterized in that the first magnetic means (2a, 2b) comprise a plurality of metal cylinders (2aa, 2ba) alternated to plastic cylinders (2ab, 2bb) .

2. Tensioning system (1) for curtains (10) according to claim 1, characterized in that said first magnetic means (2a, 2b) are positioned within pockets (13a, 13b) present at said side edges (11a, 11b) inside a seat S of the rails of the uprights (12a, 12b).

3. Tensioning system (1) for curtains (10) according to claim 2, characterized in that the second magnetic means (3a, 3b) are positioned inside a seat S' adjacent to the seat S.

4. Tensioning system (1) for curtains (10) according to claim 1, characterized in that the first magnetic means (2a, 2b) are ferromagnetic tubular elements.

5. Tensioning system (1) for curtains (10) according to claim 1, characterized in that the second magnetic means (3a, 3b) are magnetic bars shaped so that they can be vertically insertable inside the seat S'.

6. Curtain (10) comprising the tensioning system (1) according to any one of the preceding claims.

7. Curtain (10) according to claim 6, characterized in that it is a shading apparatus.

8. Curtain (10) according to claim 6, characterized in that it is a mosquito net.

9. Curtain (10) according to claim 6, characterized in that it is any shielding.

Ansprüche

1. Spannsystem (1) für Vorhänge (10), umfassend eine Länge von Stoff (11), der verschiebbar an den Schienen von senkrechten Trägern (12a, 12b) eines Rahmens befestigt ist, und erste magnetische Mittel (2a, 2b), die an Seitenrändern (11a, 11b) der Länge von Stoff (11) gekoppelt sind, und zweite magnetische Mittel (3a, 3b), die an die Schienen von senkrechten Trägern (12a, 12b) gekoppelt sind, dadurch gekennzeichnet, dass die ersten magnetischen Mittel (2a, 2b) eine Vielzahl von abwechselnd angeordneten Metallzylindern (2aa, 2ba) und Kunststoffzylindern (2ab, 2bb) umfassen.

2. Spannsystem (1) für Vorhänge (10) nach Anspruch 1, dadurch gekennzeichnet, dass die ersten magnetischen Mittel (2a, 2b) in Taschen (13a, 13b) angeordnet sind, die an den Seitenrändern (11a, 11b) in einem Sitz S der Schienen der senkrechten Träger (12a, 12b) vorhanden sind.

3. Spannsystem (1) für Vorhänge (10) nach Anspruch 2, dadurch gekennzeichnet, dass die zweiten magnetischen Mittel (3a, 3b) in einem Sitz S' angrenzend an den Sitz S angeordnet sind.

4. Spannsystem (1) für Vorhänge (10) nach Anspruch 1, dadurch gekennzeichnet, dass die ersten magnetischen Mittel (2a, 2b) ferromagnetische röhrenförmige Elemente sind.

5. Spannsystem (1) für Vorhänge (10) nach Anspruch 1, dadurch gekennzeichnet, dass die zweiten magnetischen Mittel (3a, 3b) magnetische Stangen sind, die derart geformt sind, dass sie vertikal in den Sitz S' einführbar sind.

6. Vorhang (10), umfassend das Spannsystem (1) nach einem der vorhergehenden Ansprüche.

7. Vorhang (10) nach Anspruch 6, dadurch gekennzeichnet, dass er eine Beschattungsvorrichtung ist.

8. Vorhang (10) nach Anspruch 6, dadurch gekennzeichnet, dass er ein Moskitonetz ist.

9. Vorhang (10) nach Anspruch 6, dadurch gekennzeichnet, dass er eine beliebige Abschirmung ist.

Revendications

1. Un système de tension (1) pour rideau (10) comprenant une longueur de tissu (11) attachée de manière à coulisser sur des rails de montants (12a, 12b) d'un cadre, et des premiers dispositifs magnétiques (2a, 2b) accouplés aux bords latéraux (11a, 11b) de la longueur de tissu (11) et des seconds dispositifs magnétiques (3a, 3b) accouplés aux rails des montants (12a, 12b), caractérisé en ce que les premiers dispositifs magnétiques (2a, 2b) comprennent plusieurs cylindres métalliques (2aa, 2ba) alternés avec des cylindres en plastique (2ab, 2bb).

2. Un système de tension (1) pour rideau (10) selon la revendication 1, caractérisé en ce que lesdits premiers dispositifs magnétiques (2a, 2b) sont positionnés dans des poches (13a, 13b) situées sur lesdits bords latéraux (11a, 11b) à l'intérieur d'un logement S sur les rails des montants (12a, 12b).

3. Un système de tension (1) pour rideau (10) selon la revendication 2, caractérisé en ce que les seconds dispositifs magnétiques (3a, 3b) sont positionnés à l'intérieur d'un logement S' adjacent au logement S.

4. Un système de tension (1) pour rideau (10) selon la revendication 1, caractérisé en ce que les premiers dispositifs magnétiques (2a, 2b) sont des éléments tubulaires ferromagnétiques.

5. Un système de tension (1) pour rideau (10) selon la revendication 1, caractérisé en ce que les seconds dispositifs magnétiques (3a, 3b) sont des barres magnétiques formées de manière à pouvoir être insérées verticalement à l'intérieur du logement S'.

6. Un rideau (10) comprenant un système de tension (1) selon une ou plusieurs des revendications précédentes.

7. Un rideau (10) selon la revendication 6, caractérisé en ce qu'il est un équipement pour ombrer.

8. Un rideau (10) selon la revendication 6, caractérisé en ce qu'il est une moustiquaire.

9. Un rideau (10) selon la revendication 6, caractérisé en ce qu'il protège de manière polyvalente.

Drawing