EP4253712A2

EP4253712A2 - Insect impermeable roof window system, and multi-piece insect screen set

Info

Publication number: EP4253712A2
Application number: EP23166102.6A
Authority: EP
Inventors: Simone VAN VEEN; René VAN BOMMEL; Gerardus Benedictus Maria KORTEKAAS
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-01
Filing date: 2023-03-31
Publication date: 2023-10-04
Also published as: EP4253712A3; NL2031476B1

Abstract

An insect-repellent window system comprising a pivot window comprising a window and a window frame, the window being pivotably hinged with the window frame for movement between an open and closed position, so that in the open position a first part of the window is below the hinge axis is tilted outwards to form a first opening and a second part of the window above the hinge axis is tilted inwards to form a second opening, wherein the system comprises three insect screens, whereby a first insect screen is arranged with the pivot window to cover only one of the first opening and second opening, and wherein a second screen and a third screen are arranged with at the pivot window to cover the remaining opening of the first opening and second opening.

Description

The invention pertains to an insect repellent window system with a pivot window comprising a window and a window frame, the window being pivotally hinged with the window frame to move between an open and closed position, so that in the open position a first part of the window (101) below the hinge axis is tilted outwards to form a first opening and a second part of the window above the hinge axis is tilted inwards to form a second opening.
A pivot window comprises a window that is tiltable within a window frame between an open and a closed position. The window itself is furnished within a frame which hinges tiltable with said window frame. Usually the frame is provided with a handle for manual operation of the window. The hinge point is chosen so that in the open position a lower part of the window is tilted outwards and the upper part of the window is tilted inwards. A well-known example of a pivot window is the Velux^® type: GGL-CK 02-2070. Such skylights generally provide good ventilation. However, such windows are not effective in repelling insects, especially mosquitoes, in their open position. This is a particularly common problem because skylights are often installed above gutters of roofs, which are usually a source of mosquitoes. At certain times of the year, the user of a pivot window is forced to leave the window ajar, or to leave the window closed in order to effectively keep out insects. However, these are usually also the warmer months when ventilation provides welcome relief. Especially for residents of upstairs apartments, good ventilation is necessary in warm months in order to cool the house sufficiently. Existing additional screens that one would like to use for such a pivot window do not offer a satisfactory solution to the insect problem and make ventilation more difficult. When installed on the inside, that is to say room side, of the pivot window frame, a traditional fly screen prevents the operation of the pivot window, because the fly screen makes the handle inaccessible to the user. The fly screen also limits the tiltability of the pivot window because the top part of the window hits the screen when the window is opened. As a result, even if the pivot window could still be operated in a different way, one would have to be satisfied with opening on a crack and therefore limited ventilation. If one were to place a screen on the outside, that is to say roof side, of the window frame, the window will also run into the screen, this time with its bottom side. Elastic screens are also available for attachment to the inside of the window frames of a tilting window. These elastic screen cloths are able to stretch to a limited extent when the window hits the screen. However, such screen cloths experience a tension force when the window runs into it, causing them to deform frequently, loosen from their attachment points and have a very limited lifespan. As a result, insects, such as mosquitoes, often still find a way in through deformed holes in the mesh of the screen, breaks in the screen or through loose attachment points. The elastic screen cloths are also perceived as inconvenient because damage occurs, or because they are pulled loose from the attachment when the user operates the handle of the tilt window.
Accordingly, there is a demand for an easy and reliable insect-repellent window system that can be used in upstairs apartments and spaces under sloping roofs while maintaining maximum ventilation.
To this end, the present patent application provides for a first aspect of the invention, namely an insect repellent window system, characterized in that the system comprises three insect screens, namely a first insect screen, a second insect screen and a third insect screen, wherein a first insect screen is furnished to the pivot window in order to cover only one of the first opening and second opening, and wherein a second screen and a third screen are furnished to the pivot window to cover the remaining opening of the first opening and second opening.
Optionally, the second and third screens can be furnished to the pivot window to extend substantially parallel in the closed position and at an angle to each other in the open position, and wherein one of the second and third screens being stationary relative to the window and the other insect screen of the second and third insect screen is made stationary in relation to the window frame. Such an arrangement allows the skylight to remain covered at any angle between the closed and fully opened position without having to stretch or adjust the second or third screens. In a preferred embodiment, the first insect screen is furnished to the outside of the roof window to cover only the second opening, and wherein a second insect screen and a third insect screen are respectively furnished to an inner side of the window frame and an inner side of the window, and wherein the second screen and third screen abut to jointly cover the first opening. In this arrangement, the exposure of the screens when the window is closed is minimized. In this arrangement it can also be prevented that, after being sullied with impurities, such as dirt or bird droppings, the impurities will be spread when the window is opened by the relative movement of screens placed on the outside. Optionally, the screens can also be designed to be sun-resistant and water-resistant. The latter can make cleaning the screens easier. The professional will know which screen cloths are suitable to be provided with the screens to adopt sun-resistant and water-resistant qualities. This is however not a necessity.
To prevent cracks from forming, through which insects can enter Still, the first insect screen can be provided with a brush edge that abuts the window above the hinge axis of the window, the length of the brush edge being substantially equal to the width of the window. In a preferred embodiment, the first insect screen comprises a double brush edge, wherein a first brush abuts the window and a second brush to the transition between window and the frame in which the window is fixed. The first brush projects farther from the first screen than the second brush. Optionally, the first brush is designed as a draft strip, wherein the brush is accommodated in the draft strip. This is experienced as pleasant during installation and in rare cases prevents entrapment, such as with fingers between the window and screen. Possibly to the first insect screen on a lower edge there be arranged a draft strip into which the brush is incorporated. The first insect screen can also be equipped with Velcro strips along parallel edges. This allows the user to easily fix the insect screen to an outside of the window frame in a detachable way. A Velcro strip then consists of a part that is already attached to the first insect screen, and a second part that is removable from the first part and has an adhesive edge for attachment to the pivot window.
Optionally, the second insect screen has a flexible edge, wherein the flexible edge abuts the third insect screen under the hinge axis of the window. In the vicinity of the hinge axis, the window hardly deviates outwards or inwards when tilted. Having the screens abut under the hinge axis of the window can prevent a crack opening between abutting screens. Optionally, this insect screen also has a draft strip that is designed as a brush edge. This is then the flexible edge. The brush can bridge the sole crack opening between the connecting screens and compensate for slight variations and slight deviations due to careless installation. Optionally, the flexible edge also comprises draft strips without a brush edge on either side of the brush edge. Draft strips can possibly be made of rubber, a flexible polymer or foamed plastics.
If one opens the window beyond a certain tilt position, such as below a tilt angle at which the window of the pivot window remains maximally open in a stable manner, the second and third insect screens may become detached from each other. Optionally, the third screen can therefore be provided with a first flexible edge on an upper edge of the third screen, wherein this flexible edge abuts to the second screen. Optionally, the two edges can be arranged to touch each other, also beyond a maximum tilt angle of the pivot window, so that together they can close a larger gap. Insects could also find an entrance through the window. It is therefore possible to provide a third insect screen with a second flexible edge that abuts the window, such as the glass of the window or the frame of the window. Glass here refers to silicates SiO2, but also to transparent plastics, such as plexiglass. These first and second edges are then on opposite edges. Several pivot windows have a metal window frame. A steel window frame is mostly chosen. In such cases, the window often comprises a frame of the same material. It is therefore possible to design the second and third insect screens with magnetic fastening means. Optionally, this can also be done for the first insect screen instead of Velcro attachment. Optionally, one can additionally choose to use screw fasteners. The latter case is useful for casement windows with wooden frames and window frames. This way, an insect screen cannot just fall out of the window.
In an alternative embodiment, the second and third insect screens can be attached to each other with a hinge. The second and third insect screens are each in a frame, the hinge may be a stretchable hinge. For a system with such a hinge, the crack opening between the second and third insect screens can also be shielded by means of a flexible edge. This can then be provided on at least one of the two screens. In yet another embodiment, the screen cloths of the second and third screens are integral. This is an example that is reflected in claim 13.
According to a second aspect of the invention, a three-piece insect screen set is provided, the insect screens being the first, second and third insect screen according to the system according to the first aspect of the invention and any option associated therewith. The dimensions, width and length of each of the screens are matched for use with the same window. The dimensions of the first insect screen then correspond to the length of the second opening, the width then corresponds to the width of the window frame. The second insect screen then corresponds to the length of the window from the bottom edge to the hinge axis, and the width then corresponds to the width of the window. The window also comprises the frame into which the glass is arranged. The third insect screen corresponds to the length of the glass of the window from the frame edge to the hinge axis, and the width corresponds to the width of the glass of the window.
Insect screen systems for the Velux^® type: GGL-CK 02-2070 optionally have the following dimensions:

First insect screen 28,7x46cm;
Second insect screen 32,5x47cm;
Third insect screen 31,5x39,7cm.

The invention is further described in reference to the following figures:

Fig. 1: outside of the system according to the invention;
Fig. 2: inner side of the system according to the invention;
Fig. 3: the pivot window of the system according to the invention;
Fig. 4: the first screen;
Fig. 5A: the first side of the second insect screen;
Fig. 5B: the second side of the second insect screen;
Fig. 6A: the first side of the third screen;
Fig. 6B: the second side of the third insect screen.

Figure 1 shows an outside of an insect-resistant window system 1 according to the invention. This system consists of a pivot window 100, in this example Velux^® type: GGL-CK 02-2070, but this could also have been another pivot window. This window includes a window 101 and a window frame 102. The window 101 is pivotally hinged with the window frame to move between an open and a closed position. Figure 1 shows the window in the closed position. The window 101 is provided with a frame 101.0 which fits into the window frame. The two side edges of this frame are each equipped with a hinge point with which the window can be tilted in the window frame. These hinge points are chosen such that in the open position a first part of the window 101.1 below the hinge axis 104 is tilted outwards to form a first opening O1 and a second part of the window 101.2 above the hinge axis is tilted inwards to form a second opening 02. This is best seen in Figure 3, where the window is shown in an open position. The system is equipped with three screens, namely a first, second and third screen A, B and C. Screen A is shown in Figure 1, while screens B and C are shown in Figure 2. Figure 1 shows that insect screen A is provided on the outside, i.e. the side facing outwards when installed on a roof, of the pivot window to cover opening O2. The insect screen can be made so thin, 0,1-0,5 mm, that it can be partially inserted under the top cap 100.0 of the window. The insect screen then lies further over the outer edges, read upright outer edges, of the window frame 102 and is attached, for example with Velcro 105 shown in Figure 3. Screen A further has a brush edge A1, shown in Figure 4, which connects to the window above the hinge axis 104 or at least near the hinge axis, such as within 5 centimeters of the hinge axis. The length of the brush edge is essentially equal to the width W of the window. The double brush edge A1 has a first brush A1.1 that abuts the window, in this case the glass of the window, and a second brush A1.2 at the transition between window and frame 101.0 of the window. The first brush projects farther from the first screen than the second brush. The first brush A1.1 is designed as a draft strip, the brush being incorporated into the draft strip. Optionally, the brush edge A1 is also designed with a profile A1.3 that covers the second brush A1.2 over the length of the first brush A1.1.
Figure 2 shows the inner side, also called the room side, of the pivot window. Insect screens B and C are fitted here to cover the pivot window to cover the first opening O1. For this purpose, insect screen B is attached to the window frame 102. This can be done, for example, with a magnetic attachment 106. Magnets can, for example, also separately from this example, be screwed or attached to the inside of the window frame 102, and insect screen B can then, for example, be fitted with a ferromagnetic part to connect to the magnets. Alternatively, insect screen B can simply be screwed to the frame, but then the insect screen can no longer be removed freely from the window frame. Figure 2 also shows insect screen C. This insect screen is designed on the inner side, read room side, of the window, in particular on the frame 101.0 of the window. Both insect screen B extends from the bottom edge of the window frame to below axis 104 and insect screen C extends from frame 101.0 where the glass of the window and frame meet to below axis 104. Screen C may also be provided with a magnetic connection 106.1, shown in Figure 3, but can alternatively be screwed to the frame of the window. Figure 2 shows that the top edge of screen B abuts screen C. To close any gaps between screens B and C, screen C is equipped with a brush edge C1 that projects away from the screen, on the room side of the screen, Figure 6A, to abut insect screen B when in use. Insect screen B is in this example designed with a flexible edge B1 which is arranged at the side facing the window Figure 5B. Other flexible edges can be seen in Figures 5A, 5B, 6A and 6B, but are not explicitly mentioned herein.
Figure 7 shows an alternative system 1' to the system of Figures 1-6. Only differences with system 1 from the previous figures will be discussed below. In this example there is a first insect screen A, second insect screen B and third insect screen C. Insect screens A, B and C are each provided as insect screen cloths in a frame. The frames of screens B and C are either fastened to each other or integral so that the screen cloth of screen B projects substantially perpendicular, or 85-95 degrees, from the frame of screen B towards the window 101.
The screens are each equipped with a water-resistant foam edge that is compressible. These edges project from the screens to adjacent parts of the pivot window 100. This allows edges to accommodate variations in distance from moving pivot window components, such as the window.
In a preferred embodiment, the third screen C abuts, such as by means of such a foam edge, the inside of the window 101, and the first screen A abuts the outside of the window 101. The screens A and C abut the window with a mutual distance between 0,5 and 10 cm, preferably 2-5 cm. Screen A abuts above the hinge axis 104, and screen C below the hinge axis. By having insect screens A and C abut the window 101 close to the hinge axis and close to each other insects can be prevented from getting past these edges.
It can be posited, also apart from the aforementioned, that the system is designed in such a way that the screen cloths themselves do not absorb any variation in the distance between the screen and moving parts of the tilt window, for example by changing shape. As a result, no additional parts are required to compensate for the bending and displacement of the bending of the insect screens. As a result, a better result can be achieved with fewer parts, namely that insects remain resistant beyond a maximum tilt position and the lifespan of the screens is increased. Also, this insect screen cannot be broken by moving it beyond a defined tilt position.

Claims

An insect repellent window system (1) comprising a pivot window (100) comprising a window (101) and a window frame (102), the window (101) being pivotally hinged with the window frame to move between an open and closed position, so that in the open position a first part of the window (101) below the hinge axis (104) is tilted outwards to form a first opening (O1) and a second part of the window above the hinge axis inwards is tilted to form a second opening (O2),
characterized in that the system comprises at least two screens (A, B, C), a first screen (A) being arranged on the pivot window to cover only one of the first opening and second opening (O1, O2), and wherein a second insect screen (B) is provided on the pivot window to cover the remaining opening of the first opening and cover the second opening (O1, O2), the dimensions of the insect screens being adapted to the pivot window so that they remains completely covered, even beyond a maximum tilt position.
The system according to claim 1, wherein the at least two screens include a third screen (C) fitted to the pivot window or to the second screen (B), and optionally wherein the third screen and the first screen are within 0.5-10cm from each other, preferably 2-5 cm apart, connected to opposite sides of the window.
The system of claim 2, wherein the third screen (C) extends from the second screen (B), such as toward the window, substantially perpendicularly, such as 80-100 degrees, and wherein the second and third screens are substantially rigid assembled with each other so that changing the tilt position does not affect the shape of the screen cloth.
The system according to any one of claims 1-3, wherein each of the at least two insect screens is provided with deformable edge members to accommodate variations in distance from contact surfaces with the pivot window during changing of the tilt position of the window, so that the first and second opening (O1, O2) remain closed while changing the tilt position.
The system according to claim 2 or 3, characterized in that the second screen and the third screen are arranged on the pivot window so that they extend substantially parallel in the closed position, and are at an angle to each other in the open position, and wherein one of the second and third screens is stationary with respect to the window (101), and the other screen of the second and third screens is stationary with respect to the window frame.
The system according to claim 2, 3, 4 or 5, characterized in that the first screen (A) on the outside of the roof window is arranged to cover only the second opening (O2), and wherein a second screen (B) and a third insect screen (C) are respectively arranged on an inner side of the window frame and an inner side of the window, and wherein the second insect screen and third insect screen abut to jointly cover the first opening (O1).
The system according to any one of claims 1-6, characterized in that the first insect screen (A) comprises a brush edge (A1) that abuts the window above the pivot axis of the window, and wherein the length of the brush edge is substantially equal to the width of the window and/or
characterized in that the second insect screen (B) comprises a flexible edge (B1), wherein the flexible edge abuts the third insect screen (C) below the hinge axis of the window and

wherein the flexible edge (B1) optionally comprises a brush edge, and wherein further optionally the flexible edge further comprises two draft strips on either side of the brush edge, wherein the brush edge is arranged.
The system according to any one of claims 1-7, characterized in that the third screen (C) comprises a first flexible edge (C1), such as a draft strip, the first flexible edge abuts the second screen (B) below the hinge axis of the window.
The system according to the combination of any one of claims 5-7 and claim 8, characterized in that the flexible edge (B1) of the second insect screen and the first flexible edge (C1) of the third insect screen (C) engage each other when the window is in the open position.
The system according to claim 8 or 9, characterized in that the third insect screen (C) comprises a second flexible edge (C2), such as a draft strip, wherein the first and second flexible edge being formed on opposite edges and extending from opposite surfaces of the screen, and wherein the second flexible edge abuts the window (101).
The system according to any one of claims 1-10, wherein the first insect screen is provided with a Velcro fastener for fastening to two parallel outer edges of the window frame.
The system according to any one of claims 1-11, wherein the window is provided with a ferromagnetic frame and the window frame is also made of a ferromagnetic material, the second and third insect screens being provided with magnetic fasteners.
An insect repellent window system (1) comprising a pivot window (100) comprising a window (101) and a window frame (102), the window (101) being pivotally hinged with the window frame to move between an open and closed position, so that in the open position a first part of the window (101) below the hinge axis (104) is tilted outwards to form a first opening (O1) and a second part of the window above the hinge axis inwards is tilted to form a second opening (O2),
characterized in that the system comprises two insect screens (A, B), a first insect screen (A) being arranged on the pivot window to cover only the second opening (O2), and in which at least a second insect screen (B, C) is arranged on pivot window to cover the first opening (O1), and the first insect screen (A) is attached to an outer side of the pivot window, for example to the window frame (102), and wherein the at least second insect screen (B, C) is attached to an inner side of the pivot window, for example to the window frame (102) or to a frame (101.1) of the window (101).
A three-part insect screen set, comprising the first, second and third insect screens of the system of claims 1-12, and wherein at least the first and second insect screens are each provided with one of a flexible edge extending substantially perpendicular to a plane in which a cloth of the corresponding insect screen extends.
The insect screen set according to claim 14, wherein the dimensions of the first, second and third insect screens are tailored for use in a system with said same pivot window, and in which the first insect screen (A) has a length of 25-30 cm and a width of 40-48 cm, wherein the second screen (B) has a length of 30-35cm and a width of 45-49 cm, and where the third screen (C) has a length of 30-33 cm and a width of 37 -42 cm.