EP2775088B1 - A lateral retention system for roller screens, such as mosquito nets or blinds - Google Patents
A lateral retention system for roller screens, such as mosquito nets or blinds Download PDFInfo
- Publication number
- EP2775088B1 EP2775088B1 EP14158198.3A EP14158198A EP2775088B1 EP 2775088 B1 EP2775088 B1 EP 2775088B1 EP 14158198 A EP14158198 A EP 14158198A EP 2775088 B1 EP2775088 B1 EP 2775088B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- roller
- retention system
- lateral retention
- laminas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
- 230000014759 maintenance of location Effects 0.000 title claims description 10
- 241000255925 Diptera Species 0.000 title claims description 9
- 241000761557 Lamina Species 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
- E06B9/54—Roller fly screens
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
- E06B9/581—Means to prevent or induce disengagement of shutter from side rails
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
- E06B9/54—Roller fly screens
- E06B2009/543—Horizontally moving screens
Definitions
- the present invention relates to the sector of door and window frames, and in particular to the installation of screens of the roller type.
- the main purpose of a screen is notoriously to prevent light (in the case of blinds) or insects (in the case of mosquito nets) from entering the internal environments of offices or dwellings from the openings in the walls.
- the typical composition of this type of roller screens (to be used basically for openings having a quadrangular shape) hence envisages a sheet set between a first, roller-box, sectional element (which contains a roller around which the sheet is rolled up) and a second, mobile, sectional element (referred to herein as "handle") that enables unrolling/rolling of the sheet itself.
- the sheet is contained by sectional elements referred to herein as "lateral guides”.
- the lateral guides which may be of a fixed type or of a hide-away type, have the dual function of guiding sliding of the handle sectional element and of enclosing the free side edges of the sheet, guaranteeing complete closing of the opening, which is a characteristic necessary for proper operation of the screen.
- the sheet of the screen which is held firmly fastened to the box on one side and to the handle on the other, may, however, come out of the guides set on the other two sides, and thus the condition of complete closing of the opening ceases to exist.
- the sheet In the case of roller mosquito nets, the sheet is notoriously constituted by a net with meshes sufficiently small as to prevent passage of mosquitoes.
- buttons 2 Fixed along said edges of the sheet 1 - which are to be housed in the guides (not shown in the figures) - are small protrusions referred to as "buttons" 2 having dimensions such as to be able to slide conveniently within the guides and simultaneously such to prevent them from coming out of the internal space of the guide itself. In this way, the entire sheet portion 1 close to the button 2 cannot exit from the guide; with a number of buttons 2 appropriately distributed along the edges of the free sides of the sheet 1, we may be certain that the sheet 1 will not come out of the guide, for example, on account of wind.
- buttons 2 entail a problem: their presence locally increases the diameter of rolling of the sheet owing to their thickness, which involves the need for more space in the box.
- the document No. FR 2038584 describes a system of retention of the edges of a roller sheet with respect to lateral guides, obtained by applying, along the edges themselves, of a strip of material provided on which are tabs that project from the plane of the sheet.
- the material may be metal, synthetic material, or fabric and may be welded, glued, or sewn thereon.
- Said tabs can slide in the guides but cannot come out of them, thus preventing exit of the sheet from the guides. At the moment when the sheet is rolled up, said tabs are flattened and remain within the thickness of the strip applied on the sides.
- a first disadvantage of the above known solution regards the result obtained from said system with respect to the desired purpose, i.e., that of avoiding use of elements that, on account of their thickness, would increase the diameter of winding of the sheet at the edges.
- the thickness of the sheet and the thickness of the side strip specified, but it may be readily inferred that the thickness of the sheet is very contained, whereas that of the side strip is, in the best of cases, at least equal to that of the sheet itself.
- each tab is obtained by making a C-shaped cut in the strip and then curving it.
- the tabs are not curved at their origin but are curved by mechanical action.
- the tabs are again subjected to a mechanical action that tends to flatten them or in any case to reduce their curvature (in the text of FR 2038584 it is clearly said that the tabs undergo deformation and remain within the thickness of the strip) so that it is questionable whether, once the sheet is again unrolled, they can assume again the curved shape.
- the document No. US 1882982 represents a system designed to withhold a roller sheet in the lateral guides provided at the sides thereof, and the main advantage that it proposes is that of not increasing the winding diameter of the sheet.
- the side strip may be continuous, i.e., applied along the entire edge of the sheet, or else it may be discontinuous, i.e., with stretches of strip applied to the sheet that are more or less long and more or less set at a distance apart.
- the strip will tend to remain attached to the sheet, or in any case its initial curvature will decrease until it no longer enters the part of guide designed to receive it but enters the opening provided for the sheet, thus nullifying the effectiveness in terms of retention of the sheet within the guide.
- This consideration arises from experience and from the knowledge of the materials used in the field of screens and of environmental conditions to which devices of this sort are subject. It should be noted that this problem does not arise if the strip is attached along the entire edge of the net, given that there will always be a first stretch of strip in the right seat that will appropriately guide the strip throughout the remaining length. But in this case the strip will increase considerably the winding diameter, nullifying the advantage that is intended to achieve.
- the strip is applied only on some stretches, the problem of the winding diameter is reduced - even though not completely eliminated - but, if the various stretches of strip remain deformed and attached to the sheet, the condition in which the strip is guided throughout its length in the right seat within the guide ceases. Rather, there may be readily expected an anomalous operation at the moment when the stretches of strip come to impact against the element of the guide that defines the seat for the strip at the moment when the stretch itself enters the guide.
- the main purpose of the present invention is hence to overcome the aforesaid disadvantages and drawbacks that characterize currently known solutions by providing an innovative solution to the problem of exit of the sheet 1 from the guides 4, said solution advantageously not involving difficulties in rolling up the sheet 1 caused by the presence of the buttons 2.
- each lamina 3 - thanks to its limited thickness, which is comparable to that of the sheet - sets itself between two adjacent layers of sheet, generating an increase in thickness that is advantageously barely perceptible.
- a further peculiar characteristic of the invention is constituted by the fact that the curvature of each of the lamina 3, in addition to being such as to project from the plane of lie of the sheet 1 in the configuration where the sheet is drawn, must have the concavity facing the roller or tube T for rolling up the sheet itself in such way that, when the lamina 3 is in a position corresponding to the roller T during rolling-up of the sheet 1, its concavity will facilitate this operation.
- this lamina or appendage 3 When the sheet 1 is unrolled and slides in the perimetral guide 4, this lamina or appendage 3, given that it is curved and projects from the plane of lie of the sheet itself, constitutes, in effect, a sort of hook that cannot exit from the guide 4, offering a lateral encumbrance determined by its geometrical shape and not by its thickness ( Figures 5 , 7, and 9 ).
- the aforesaid lamina 3 is made of plastic or metal material or some other material, and is fixed to the net 1, by means of glue, thermal welding, ultrasound gluing, or some other suitable system, in a point of its own surface of contact with the sheet 1 that is located, preferably but not exclusively, at one end of the lamina itself.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Tents Or Canopies (AREA)
- Catching Or Destruction (AREA)
Description
- The present invention relates to the sector of door and window frames, and in particular to the installation of screens of the roller type.
- The main purpose of a screen is notoriously to prevent light (in the case of blinds) or insects (in the case of mosquito nets) from entering the internal environments of offices or dwellings from the openings in the walls.
- Technical solutions are known where, for convenience, such screens may be temporarily removed from the corresponding opening by being rolled up in a purposely provided containing roller box.
- The typical composition of this type of roller screens (to be used basically for openings having a quadrangular shape) hence envisages a sheet set between a first, roller-box, sectional element (which contains a roller around which the sheet is rolled up) and a second, mobile, sectional element (referred to herein as "handle") that enables unrolling/rolling of the sheet itself.
- As regards the other two free sides, the sheet is contained by sectional elements referred to herein as "lateral guides".
- The lateral guides, which may be of a fixed type or of a hide-away type, have the dual function of guiding sliding of the handle sectional element and of enclosing the free side edges of the sheet, guaranteeing complete closing of the opening, which is a characteristic necessary for proper operation of the screen.
- In the case of wind, the sheet of the screen, which is held firmly fastened to the box on one side and to the handle on the other, may, however, come out of the guides set on the other two sides, and thus the condition of complete closing of the opening ceases to exist. In the case of roller mosquito nets, the sheet is notoriously constituted by a net with meshes sufficiently small as to prevent passage of mosquitoes.
- In what follows, reference will be made to the figures described below, which illustrate some technical solutions currently known and a preferred embodiment of the invention.
- In the drawings:
-
Figures 1 to 3 show an example of a roller mosquito net equipped with so-called "buttons" having the function of preventing the edges of the net from coming from the guides; -
Figure 4 is a 3D view that represents schematically the main components of a roller mosquito net that can slide vertically, obtained according to the present invention, while it is in the partially open configuration, where also the lateral guides are represented with a dashed-and-dotted line; -
Figure 5 shows a detail of the perimetral edge of the roller screen illustrated inFigure 4 , which slides in a lateral guide, where an arched tab is shown within the latter; -
Figure 6 , which is similar toFigure 4 , shows the present invention applied to a roller mosquito net that can slide laterally, with hide-away bottom guide; -
Figure 7 is a horizontal cross section that shows a detail of the bottom perimetral edge of the roller screen ofFigure 6 , which slides in the hide-away guide with a tab within the latter; -
Figure 8 is a 3D view of a detail of the bottom perimetral edge of the roller screen ofFigure 6 ; and -
Figure 9 is a vertical cross section of the roller screen ofFigure 6 , where both the hide-away bottom guide and the fixed top guide are shown. - With reference to
Figures 1 to 3 , there exist technical solutions that limit the possibility of the free sides of thesheet 1 coming out of the guides. Fixed along said edges of the sheet 1 - which are to be housed in the guides (not shown in the figures) - are small protrusions referred to as "buttons" 2 having dimensions such as to be able to slide conveniently within the guides and simultaneously such to prevent them from coming out of the internal space of the guide itself. In this way, theentire sheet portion 1 close to thebutton 2 cannot exit from the guide; with a number ofbuttons 2 appropriately distributed along the edges of the free sides of thesheet 1, we may be certain that thesheet 1 will not come out of the guide, for example, on account of wind. - Albeit accomplishing the function of keeping the
sheet 1 within the guides, thebuttons 2, however, entail a problem: their presence locally increases the diameter of rolling of the sheet owing to their thickness, which involves the need for more space in the box. - In some known solutions (
Figures 1-3 ), recourse is had to a local reduction of the diameter of the tube T on which the sheet of the screen is wound, at the ends E of the latter. This means that at the ends there is left more space for rolling up of thesheet 1 but at the cost of a more complex manufacturing process with a larger number of components. - The document No.
EP 1154119 describes a particular solution that can be applied to all roller-screen systems that envisage lateral guides at the sides of the screen. In this document, a system is described that envisages flexible elements, which, as is clearly illustrated in the figures and specified in the text of the patent, are welded on both ends. The flexible element must be welded or glued on the sheet when this is rolled up and the element itself is in a condition where it adheres properly to the screen, as described in the document itself. The reason for this is that the flexible element, with respect to the underlying layer of sheet, lies on an overlying layer, i.e., on a greater diameter (when the sheet is rolled up). The width of the screen glued to the flexible element is smaller than the width of the flexible element itself. When the sheet is unwound and assumes a plane condition said difference brings the flexible element, which is longer than the portion of sheet between the two attachment points, necessarily to project, thus creating a relief with respect to the sheet, i.e., an obstable that hinders exit of the sheet from the guide. - In this connection, a problem should be noted: what is exploited, in the final analysis, is the difference in the winding diameter between one layer and the next of the sheet. Notoriously, screens have a contained thickness to enable winding of the sheet in a small space, and, as declared in
EP 1154119 , the flexible element has a thickness that is close to that of the sheet. - Evidently, also the difference in the winding diameter between one layer and the next can only be contained, and hence the projection of the flexible element with respect to the sheet - when this is splayed out - can in turn only be contained; i.e., it must be in the region of the thickness of the sheet itself.
- To overcome said problem, it could be assumed that the flexible element of
EP 1154119 is attached so as to form a projection sufficient to guarantee effectiveness thereof for the purposes of retention in the guide, but by so doing this projection would be preserved also in the condition where the sheet is rolled up, thus forming a 'local' encumbrance that would considerably increase the winding diameter, thus nullifying the result that it would be desired to obtain. - The
document No. FR 2038584 - Said tabs can slide in the guides but cannot come out of them, thus preventing exit of the sheet from the guides. At the moment when the sheet is rolled up, said tabs are flattened and remain within the thickness of the strip applied on the sides.
- A first disadvantage of the above known solution regards the result obtained from said system with respect to the desired purpose, i.e., that of avoiding use of elements that, on account of their thickness, would increase the diameter of winding of the sheet at the edges. In no point of
FR 2038584 - This means that the winding diameter at the ends of the sheet becomes at least twice that due to the sheet alone. This result is in the direction opposite to that of not increasing the winding diameter of the sheet, as is instead obtained with the present invention.
- A disadvantage of
FR 2038584 FR 2038584 FR 2038584 - It is to be emphasized that associated to the mechanical action that tends to flatten the tabs when the sheet is rolled up is also the effect of the high temperature that normally is set up in screen devices during the warm periods of the year so that, even if the tabs manage to preserve the curvature after some cycle of closing/opening, it seems unlikely that this will occur after a period of time sufficiently long as to include the warm period of the year.
- The document No.
US 1882982 represents a system designed to withhold a roller sheet in the lateral guides provided at the sides thereof, and the main advantage that it proposes is that of not increasing the winding diameter of the sheet. - In this case, however, the idea is that of setting along the side edges of the sheet strips welded to the sheet. These are welded not over their entire surface but rather only along the outermost edge, whereas the rest of the strip should remain curved with respect to the sheet so that the convex part faces the sheet. The guides according to
US 1882982 have a particular design with a wall that is made to penetrate between the sheet and the strip in such a way as to prevent the sheet from coming out. - Different solutions for the side strip are presented: it may be continuous, i.e., applied along the entire edge of the sheet, or else it may be discontinuous, i.e., with stretches of strip applied to the sheet that are more or less long and more or less set at a distance apart.
-
US 1882982 explains that the strip is curved when the sheet is unrolled and that, when the sheet is rolled up, the strip is flattened on the sheet so as to not increase the winding diameter. This means that, evidently, the strip changes shape and from flat, when it is wound, returns to its curved condition. It is unlikely for a strip that is so thin and welded to the sheet along an edge to preserve over time the initial characteristics of elasticity: rather than continuing to change shape between one condition and the other, it ends up remaining in one of the two configurations. The strip will tend to remain attached to the sheet, or in any case its initial curvature will decrease until it no longer enters the part of guide designed to receive it but enters the opening provided for the sheet, thus nullifying the effectiveness in terms of retention of the sheet within the guide. This consideration arises from experience and from the knowledge of the materials used in the field of screens and of environmental conditions to which devices of this sort are subject. It should be noted that this problem does not arise if the strip is attached along the entire edge of the net, given that there will always be a first stretch of strip in the right seat that will appropriately guide the strip throughout the remaining length. But in this case the strip will increase considerably the winding diameter, nullifying the advantage that is intended to achieve. - If, instead, the strip is applied only on some stretches, the problem of the winding diameter is reduced - even though not completely eliminated - but, if the various stretches of strip remain deformed and attached to the sheet, the condition in which the strip is guided throughout its length in the right seat within the guide ceases. Rather, there may be readily expected an anomalous operation at the moment when the stretches of strip come to impact against the element of the guide that defines the seat for the strip at the moment when the stretch itself enters the guide.
- The main purpose of the present invention, is hence to overcome the aforesaid disadvantages and drawbacks that characterize currently known solutions by providing an innovative solution to the problem of exit of the
sheet 1 from theguides 4, said solution advantageously not involving difficulties in rolling up thesheet 1 caused by the presence of thebuttons 2. - This has been achieved, according to the invention illustrated schematically in
Figures 4 to 9 , with a roller screen provided, along the free edges of thesheet 1, with a plurality of rigid or semi-rigid laminas orleaves 3 characterized by being curved so as to project from the plane of lie of thesheet 1, each of which is glued or appropriately fixed along the edge of thesheet 1 in a similar way of theknown buttons 2 and instead of them. - With this peculiar arrangement, when the mosquito net (or more in general the sheet) 1 is rolled up, each lamina 3 - thanks to its limited thickness, which is comparable to that of the sheet - sets itself between two adjacent layers of sheet, generating an increase in thickness that is advantageously barely perceptible.
- In this connection, it should be noted that a further peculiar characteristic of the invention is constituted by the fact that the curvature of each of the
lamina 3, in addition to being such as to project from the plane of lie of thesheet 1 in the configuration where the sheet is drawn, must have the concavity facing the roller or tube T for rolling up the sheet itself in such way that, when thelamina 3 is in a position corresponding to the roller T during rolling-up of thesheet 1, its concavity will facilitate this operation. - When the
sheet 1 is unrolled and slides in theperimetral guide 4, this lamina orappendage 3, given that it is curved and projects from the plane of lie of the sheet itself, constitutes, in effect, a sort of hook that cannot exit from theguide 4, offering a lateral encumbrance determined by its geometrical shape and not by its thickness (Figures 5 ,7, and 9 ). - According to the invention, the
aforesaid lamina 3 is made of plastic or metal material or some other material, and is fixed to the net 1, by means of glue, thermal welding, ultrasound gluing, or some other suitable system, in a point of its own surface of contact with thesheet 1 that is located, preferably but not exclusively, at one end of the lamina itself.
Claims (6)
- A lateral retention system for roller screens (1), constituted, for example, by mosquito nets or curtains or blinds, that can be rolled up on a purposely provided roller or tube (T), said system being equipped with fixed or hide-away perimetral guides (4) and comprises, in combination, a roller screen (1) that is provided, along its own free edges, with a plurality of rigid or semi-rigid laminas or leaves (3), which are curved so as to project from the plane of lie of the sheet (1) that constitutes said screen, each of which is glued or appropriately fixed along the edge of the sheet (1); wherein each rigid or semi-rigid lamina (3) has a curvature such as to project from the plane of lie of the sheet (1) in the drawn-out configuration, and has a thickness comparable to that of the sheet (1); characterized in that said curved laminas (3) have an elongated body with longitudinal development and are fixed to the sheet (1) in a single area of its own body.
- The lateral retention system for roller screens (1) according to Claim 1, characterized in that said area of fixing of each curved lamina (3) to the sheet (1) is an end area, whereas the remaining area is free.
- The lateral retention system for roller screens (1) according to Claim 1 or Claim 2, characterized in that the curvature of each of the laminas (3), in addition to being such as to project from the plane of lie of the sheet (1) in the drawn-out configuration, has a concavity facing the roller or tube (T) for rolling up the sheet itself; thus obtaining that, when the lamina or leaf (3) is in a position corresponding to the roller (T) during rolling-up of the sheet (1), its concavity will facilitate this operation.
- The lateral retention system for roller screens (1) according to Claim 3, characterized in that, when the sheet (1) is unrolled sliding in the perimetral guide (4), since said appendage or lamina (3) is curved and projects from the plane of lie of the sheet itself, it constitutes, in effect, a sort of hook that cannot exit from the guide (4), offering a lateral encumbrance determined by its geometrical shape and not by its thickness.
- The lateral retention system for roller screens (1) according to any one of the preceding claims, characterized in that said laminas (3) are made of plastic or metal material or some other material.
- The lateral retention system for roller screens (1) according to any one of the preceding claims, characterized in that each of said laminas (3) is fixed to the screen or sheet (1) by means of glue, thermal welding, ultrasound gluing, or some other suitable system, in one or more points of its own surface of contact with the sheet (1).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000136A ITRM20130136A1 (en) | 2013-03-06 | 2013-03-06 | "LATERAL SEALING SYSTEM FOR SHUTTER SHUTTERS AS AN EXAMPLE MOSQUITO NETS AND DARKENING CURTAINS" |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2775088A1 EP2775088A1 (en) | 2014-09-10 |
EP2775088B1 true EP2775088B1 (en) | 2016-01-13 |
Family
ID=48050152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14158198.3A Not-in-force EP2775088B1 (en) | 2013-03-06 | 2014-03-06 | A lateral retention system for roller screens, such as mosquito nets or blinds |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2775088B1 (en) |
IT (1) | ITRM20130136A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUB20151071A1 (en) * | 2015-05-27 | 2016-11-27 | Langellotti Angelo | PERFECTED SIDE SEALING SYSTEM FOR ROLL-UP SHIELDS SUCH AS MOSQUITO NETS AND NET BLINDS |
US9932769B2 (en) | 2015-07-16 | 2018-04-03 | Donald R Woolery | Hidden insect screen system for double hung, tilt-to-clean windows |
ITUA20163337A1 (en) * | 2016-05-11 | 2017-11-11 | Mv Line S P A | Concealed guiding and tensioning device for sliding screens |
CN108979509B (en) * | 2018-08-02 | 2019-10-15 | 六安荣耀创新智能科技有限公司 | Screen window discharges system automatically |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1882982A (en) * | 1930-11-25 | 1932-10-18 | August J Schmiedeskamp | Rolling screen retaining means |
FR2038584A5 (en) * | 1969-03-24 | 1971-01-08 | Marche Roche Ets | |
DE10022452A1 (en) * | 2000-05-09 | 2001-11-15 | Bautex Adolf Stoever Soehne Gm | Blind for a roller blind with side guide |
-
2013
- 2013-03-06 IT IT000136A patent/ITRM20130136A1/en unknown
-
2014
- 2014-03-06 EP EP14158198.3A patent/EP2775088B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2775088A1 (en) | 2014-09-10 |
ITRM20130136A1 (en) | 2014-09-07 |
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