BE1025101B1 - SCREEN DEVICE - Google Patents

Abstract

This invention relates to a screen device (1) comprising - a first and a second screen (4, 5) that can be rolled up and unrolled on a first and second screen roll (2, 3), with a first and second connecting strip (6, respectively), 7) on adjacent lateral sides; - a coupling piece (8), with a Y-shaped channel, delimited by an upper body (9), a lower body (10) and an intermediate piece (11), in which the connecting strips (6, 7) are movable, for coupling and uncoupling when unrolling or rolling up the screens (4, 5); - and a guide element (15) with a guide surface (16) for guiding the connecting strips (6, 7), which is arranged away from the screen rollers (2, 3) and / or this Y-shaped channel shaped channel partially defines and in the rolling direction of the screens (4, 5), during the rolling up and unrolling of the screens (4, 5), is gradually arranged further and further from each plane in which the screens (4, 5) are situated essentially extend their unrolled state.

Description

(30) Priority data:

(73) Holder (s):

RENSON SUNPROTECTION SCREENS NV

8790, WAREGEM

Belgium (72) Inventor (s):

MAERTENS Jonas Willem

9000 GHENT

Belgium

THE FRENE Joost Benjamin Renaat 8790 WAREGEM

Belgium

SOLOMANIUCK Maxim Gustave

9000 GHENT

Belgium

MAINSTER John Peter

9050 GHENT BRUGES

Belgium

VANHOUTTE Steven Rita André

8540 HONEST

Belgium

BANKRUPTCY Koen

8800 RUMBEKE

This invention relates to a screen device (1) comprising - a first and a second, on a first and a second screen roller (2, 3), respectively, an openly rollable screen (4, 5), with a first, second connecting strip (6, 7) on adjacent lateral sides, respectively; - a coupling piece (8), with a Y-shaped channel, delimited by an upper body (9), a lower body (10) and an intermediate piece (11), in which the connecting strips (6, 7) are movable, for coupling and uncoupling thereof when unrolling or rolling up the screens (4, 5); - and a guiding element (15) with a guiding surface (16) for guiding the connecting strips (6, 7), which are arranged away from the shield rollers (2, 3) adjoining the Y-shaped channel and / or this Y- shaped channel partially demarcated and in the direction of unwinding of the screens (4, 5), during the winding and unrolling of the screens (4, 5), is gradually positioned further and further from each plane in which the screens (4, 5) are extend their unrolled state mainly.

Fig. 1

BE2017 / 5229

SCREEN DIRECTION

This invention relates to a screen device comprising

- a first screen roll with a first screen that can be rolled up and down on it;

- a second screen roll with a second screen that can be rolled up and down on it;

- a first connecting strip on a lateral side of the first screen, adjacent to the second screen;

a second connecting strip on a lateral side of the second screen, adjacent to the first screen;

- and a coupling piece which is arranged at a certain distance from the screen rollers, comprising an upper body, a lower body and an intermediate piece, which delimit together a Y-shaped channel, in which the connecting strips can be arranged to be displaceable, for coupling the connecting strips when unrolling the screens and for disconnecting the connecting strips when the screens are rolled up.

The first connecting strip, the second connecting strip and the coupling piece together form a zipper. The connecting strips can be constructed in several known ways and will typically comprise a strip of fabric on which metal or plastic hook elements are provided on a lateral side. The hook elements of the connecting strips can herein hook together to couple the connecting strips and hook back apart to disconnect the connecting strips from each other. The Y-shaped channel has open ends through which the hook elements of the connecting strips can be slid. By sliding the hook elements of both connecting strips from two legs into a third leg of the Y-shape, they are hooked together, because the first two legs converge in the third leg. Conversely, crocheted hook members are slid apart from the third leg toward the first two legs by sliding the third leg into the two legs.

BE2017 / 5229

There is an increasing trend to provide buildings with increasingly large glass areas to allow the largest possible unobstructed view of the outside environment. If it is desired to provide a screen device with a retractable and retractable screen for such glass areas, it is often not possible to provide a single screen roll for this purpose. More and more often, multiple screen roles have to be arranged adjacent to each other. Increasingly, the screen rollers are hereby driven synchronously and roll-up and roll-up screens are coupled thereto in their unrolled state with the aid of such a zipper, so that these screens can form a continuous whole when unrolled. In this way, for example, sunlight can no longer penetrate between the two screens or the screens together form an insect-repellent whole, etc. The screens can here be in line with each other, in the unrolled state they extend mainly in the same plane, or they can extend in unrolled state, each extending mainly in a different plane, these planes being arranged at an angle to each other.

The zippers with which these screens are mutually linked, however, are very sensitive to wear. When using the most common connectors for such zippers, parts of the upper body and / or lower body and / or intermediate piece of the connector, adjacent to the Y-shaped channel, become worn and the upper body and the lower body pulled apart. When one replaces this coupling piece with a stronger and more expensive example made of, for example, stainless steel, one notices that the commonly used connecting strips on the later sides of the screens wear faster or the screens start to tear at the location of these connecting strips. However, it is not a solution to use firmer connection strips and / or firmer screens. Sturdier connecting strips are also more rigid and less flexible with the screens that can be rolled up and unwound on the screen rollers, so that more wrinkling occurs when the screens are rolled up and / or the lateral sides thereof move up when rolled up, so that they no longer mutually

BE2017 / 5229 can be linked. Sturdier screens can also be rolled up and down less smoothly, resulting in more folds when rolled up.

The object of this invention is to provide such a screen device in which the zipper is less susceptible to wear.

This object of the invention is achieved by providing a screen device comprising:

- a first screen roll with a first screen that can be rolled up and down on it;

- a second screen roll with a second screen that can be rolled up and down on it;

- a first connecting strip on a lateral side of the first screen, adjacent to the second screen;

a second connecting strip on a lateral side of the second screen, adjacent to the first screen;

- a coupling piece which is arranged at a certain distance from the screen rollers, comprising an upper body, a lower body and an intermediate piece, which delimit together a Y-shaped channel, in which the connecting strips can be fitted in a movable manner, for coupling the connecting strips when unrolling the screens and for disconnecting the connecting strips when the screens are rolled up;

- and a guiding element with a guiding surface for guiding the connecting strips, which is arranged away from the screen rollers adjoining the Y-shaped channel and / or partially delimits this Y-shaped channel and seen in the rolling direction of the screens, at least during the winding and unrolling the screens, is progressively positioned further and further from any plane in which the screens extend mainly in their unrolled state.

Such a guiding element forms a gradual transition towards the coupling piece. Thanks to the guide element, the stresses on the screen at the height of the coupling piece are greatly reduced because they are supported with the aid of the guide element

BE2017 / 5229 must be at least partially collected in a gradual manner before they would be received by the coupling piece. These stresses are applied to the screens, partly due to the formation of pockets of these screens and because the said connecting strips on the lateral sides of the screens can never be attached 100% correspondingly to each other on the corresponding lateral sides on both screens. When installing the screens, one tries to minimize the differences between the two connecting strips by adjusting the angular rotation of the screens relative to each other. However, these differences cannot be fully compensated in this way.

Such a guiding element can be realized in many ways.

In a first specific embodiment, the guide element can be made rigid. The design of this is then adjusted as well as possible in function of the stresses to be absorbed. Such a rigid guiding element can be constructed in a durable manner and be fixedly arranged in the screen device afterwards on the coupling piece or forming part of an adapted coupling piece.

In a second specific embodiment, the guiding element can be at least partially deformable, for example of a flexible plastic. This guide element or a part thereof is then preferably designed in such a flexible manner that its shape automatically adapts to the stresses to be absorbed. In the rest position, its guiding surface can for instance extend parallel to the plane or surfaces in which the screens mainly extend. When the screen is rolled up and down, the said stresses will increase and this guiding element will automatically position itself in such a way that its guiding surface is gradually positioned further and further away from each plane in which the screens mainly extend in their unrolled state.

In such a screen device in which the guide element is at least partially deformable, the lower body of the coupling piece is included

BE2017 / 5229 is preferably designed to be deformable at least in part and is part of the guide element. At least a part of this lower body can also be designed as the said guiding element.

In a preferred embodiment of a screen device according to this invention, the guiding surface is curved at least during the winding and unwinding of the screens.

In a third specific embodiment of a screen device according to this invention, the coupling piece is arranged tiltably in the screen device and the lower body forms part of the guide element. When the screens are rolled up and down, the coupling piece can then tilt under the influence of the increased stresses, so that the guiding surface thereof is gradually positioned further and further away from each plane in which the screens mainly extend in their unrolled state.

A special embodiment of a screen device according to this invention comprises a holding element with a lower holding body and an upper holding body, between which the coupling piece is arranged, wherein the lower holding body forms part of the guide element. With such a holding element, a guiding element according to the invention can be connected in a simple manner to a, for example, commercially available coupling piece which is arranged between the holding bodies of this holding element.

In such a shielding device with holding element, the Y-shaped channel comprising a first leg facing the first screen roller, comprising a second leg facing the second screen roller and comprising a third leg away from the screen rollers, the holding member preferably includes a first channel connecting to the first leg, a second channel connecting to the second leg and a third channel connecting to the third leg of the Y-shaped channel.

BE2017 / 5229

Using the channels in the holding element, the connecting strips are guided over a greater distance than with the known coupling pieces themselves.

The third channel away from the coupling piece preferably opens into a diverging piece, so that a gradual transition towards the screen rollers is realized.

Also, the first channel and the second channel preferably open into a diverging piece away from the coupling piece, so that tensions can be gradually absorbed.

A guiding element according to this invention is particularly advantageous in a screen device according to this invention in which the screen rollers are rotatable about a respective axis of rotation and wherein these axes of rotation of the screen device are mounted at an angle to one another in the mounted state.

The present invention will now be explained in more detail with reference to the following detailed description of some preferred shielding devices according to this invention. The purpose of this description is only to provide illustrative examples and to indicate further advantages and details of these shielding devices, and can therefore in no way be interpreted as limiting the scope of the invention or the patent rights claimed in the claims.

In this detailed description, reference numerals are used to refer to the accompanying drawings, in which

Figure 1 shows a screen device according to the invention in perspective from below;

Figure 2 shows a part of the screen device of figure 1 in more detail in perspective at the connection of the screens thereof;

BE2017 / 5229

Figure 3 shows the screen device of figure 1 in section, cut across the first screen roller;

Figure 4 shows the screen device of figure 1 in section, cut across the holding element and the coupling piece;

Figure 5 shows the holding element and the coupling piece from the screen device of figure 1 separately in cut-away perspective;

Figure 6 shows the holding element and the coupling piece from the screen device of figure separately in side view;

Figure 7 shows the holding element and the coupling piece from the screen device of figure separately in front view;

Figure 8 shows the holding element and the coupling piece from the screen device of figure in section, cut according to plane A of figure 7;

Figure 9 shows an alternative embodiment of a holding element and a coupling piece for a screen device according to the invention in side view;

Figure 10 shows the holding element and the coupling piece from figure 9 in section, cut according to plane A of figure 9;

Figure 11 shows the holding element and the coupling piece of figure 9 in front view;

Figure 12 shows the holding element and the coupling piece of figure 9 in section, cut according to plane B of figure 11;

Figure 13 shows a further alternative embodiment of a holding element and a coupling piece according to the invention in front view;

- Figure 14 shows the holding element and the coupling piece from figure 13 in section, cut according to plane A of figure 13.

The depicted screen device (1) comprises two screen rolls (2, 3) and two screens (4, 5) which are attached at one end to a respective screen roll (2, 3) and are provided to be rolled up and unrolled thereon. For this purpose the screen rollers (2,

3) rotatable about a respective axis of rotation (R, S). In the illustrated embodiment, these rotation axes (R, S) are at an angle (α) to

BE2017 / 5229 prepared together. In the unrolled state, the screens (4, 5) then mainly extend in planes that extend at the same angle (α) relative to each other. However, this invention also applies to screen devices (1) in which the screen rollers (2, 3) are arranged in line, so that the screens (4, 5) extend substantially in the same plane when unrolled.

Such screen devices (1) can typically be arranged in front of a window lot (35), as can be seen in Figures 1 and 2 to shield them at least partially from sunlight. When this window section (35) can be opened, such screens (4, 5) are typically also used as insect screens. Such screen devices (1) can also be set up freely or be included in, for example, a patio roof, in order to provide an outdoor space with protection against sunlight or wind, etc.

The screen rollers (2, 3) of the depicted screen device (1) are each contained in a screen box (30, 31). At the other end of the screens (4, 5), then the end where they are attached to the screen rollers (2, 3), a bottom bar (28, 29) is attached. These runners (28, 29) are mutually coupled to form a functional whole. These are provided to allow the screens (4, 5) to sag under the weight of these runners (28, 29).

Side guides (26, 27) are arranged on the outer lateral sides of the depicted screen device (1), in which the corresponding lateral sides of the screens (4, 5) and the corresponding ends of the bottom battens (28, 29) are conductively mounted. Alternative embodiments without such side guides (26, 27), or in which these side guides (26, 27) only guide the screens (4, 5) or only the bottom battens (28, 29), are of course also conceivable.

In order to enclose the screens (4, 5) in the side guides (26, 27), they can for instance be provided on the relevant side with the same connecting strip as on their side adjacent to the other screen (5, 4). The screens (5, 4) would do this

BE2017 / 5229 on these lateral sides can alternatively also be provided with other known guiding elements for conductively mounting screens (5, 4) in side guides (26, 27).

On the lateral sides of the screens (2, 3) than the said lateral sides contained in the side guides (26, 27), a zipper (6, 7, 8) is provided to interconnect the screens (4, 5) coupling in unrolled state.

As can be seen more clearly in Figure 2, the screens (4, 5) are provided for this purpose on their corresponding lateral side with a connecting strip (6, 7). The illustrated connecting strips (6, 7) are constructed in a known manner from a strip of textile on which metal hook elements are provided. However, these could also be built up in several other known ways. The hook elements of the connecting strips (6, 7) can hook together to couple the connecting strips (6, 7) and hook back apart to disconnect the connecting strips (6, 7).

To this end, a coupling piece (8) is arranged at the bottom of the screen boxes (30, 31) for coupling or uncoupling these connecting strips (6, 7). This coupling piece (8) in each case comprises an upper body (9), a lower body (10) and an intermediate piece (11), which together define a Y-shaped channel, in which the connecting strips (6, 7) are movably arranged for coupling them in unrolling the screens (4, 5) or disconnecting them when winding up the screens (4, 5).

In the illustrated embodiments, the coupling piece (8) is in each case contained in a holding element (17), which comprises a lower holding body (18) and an upper holding body (19), between which the coupling piece (8) is arranged. The coupling piece (8) is herein mounted in a recess (32) in the holding element (17). The holding element (17) in each case comprises a first channel (20), which connects to a first leg (12) of the Y-shaped channel, a second channel (21), which connects to a second leg (13) of the Y-shaped channel and a third channel (22) connecting to the third leg (14) of the Y-shaped channel. The channels (20, 21, 22) in the holding element (17) each end in a divergent piece (23, 24, 25) away from the coupling piece (8).

BE2017 / 5229

The first two depicted holding elements (17) each comprise a rigid lower holding body (18) and a rigid upper holding body (19) which are fixedly arranged in the screen device (1). The lower holding body (18) is designed as a guiding element (15) and for this purpose is always connected to the third leg (14) of the Y-shaped channel with a curved surface (16), which is gradually positioned further and further away from the planes in which the screens (4, 5) mainly extend in their unrolled state.

The last illustrated holding member (17) is tiltably mounted to a mounting body (34) pivotable about a pivot axis (33).

When the screens (4, 5) are rolled up and down, their adjacent lateral sides become more bent, as shown in an enlarged view in figure 4. The stresses that are built up towards the coupling piece (8) are now gradually absorbed through the guide surface (16). In the first two holding elements (17) shown, the shape of the guide surface (16) is adapted for this purpose. In the last illustrated embodiment, the holding element (17) will tilt under the influence of these stresses, such that its guiding surface (16) is gradually positioned further and further from the surfaces in which the screens (4, 5) mainly extend in their unrolled state .

Claims (10)

CONCLUSIONS BE2017 / 5229 Screen device (1) comprising - a first screen roller (2) with a first screen that can be rolled up and unrolled thereon; - a second screen roller (3) with a second screen (5) that can be rolled up and unrolled thereon; - a first connecting strip (6) on a lateral side of the first screen (4), adjacent to the second screen (5); - a second connecting strip (7) on a lateral side of the second screen (5), adjacent to the first screen (4); - a coupling piece (8) arranged at a certain distance from the screen rollers (2, 3), comprising an upper body (9), a lower body (10) and an intermediate piece (11), which together define a Y-shaped channel, in which the connecting strips (6, 7) are movably arranged, for coupling the connecting strips (6, 7) when unrolling the screens (4, 5) and for uncoupling the connection strips (6, 7) when unrolling the screens (4, 5); characterized in that the shielding device (1) comprises a guiding element (15) with a guiding surface (16) for guiding the connecting strips (6, 7), away from the shielding rollers (2, 3) connecting to the Y-shaped channel and / or partially demarcates this Y-shaped channel and seen in the rolling direction of the screens (4, 5), at least during the winding and unrolling of the screens (4, 5), is gradually positioned further and further from each plane wherein the screens (4, 5) mainly extend in their unrolled state. Screen device (1) according to claim 1, characterized in that the guide element (15) is rigid. BE2017 / 5229 Shading device (1) according to claim 1, characterized in that the guide element (15) is at least partially deformable. Screen device (1) according to claim 3, characterized in that the lower body (10) is at least partially deformable and forms part of the guide element (15). Screen device (1) according to one of the preceding claims, characterized in that the guiding surface (16) is curved at least during the winding and unwinding of the screens (4, 5). Screen device (1) according to claim 1 or 2, characterized in that the coupling piece (8) is arranged tiltably in the screen device (1) and that the lower body (10) forms part of the guide element (15). Screen device (1) according to one of the preceding claims, characterized in that the screen device (1) comprises a holding element (17) with a lower holding body (18) and an upper holding body (19), between which the coupling piece (8) is the lower holding body (18) being part of the guide element (15). Screen device (1) according to claim 7, characterized in that the Y-shaped channel comprises a first leg (12), which is directed towards the first screen roller (2), comprises a second leg (13), which second shield roller (3) is facing and includes a third leg (14) that faces away from the shield rollers (2, 3) and that the holding member (17) includes a first channel (20) connecting to the first leg (12), a second channel (21) connecting to the second leg (13) and a third channel (22) connecting to the third leg (14) of the Y-shaped channel. BE2017 / 5229 Screen device (1) according to claim 8, characterized in that the third channel (22) opens into a divergent piece (25) away from the coupling piece (8). 10. Screen device (1) according to claim 8 or 9, characterized in that the first channel (20) and the second channel (21) each lead away from the coupling piece (8) into a respective diverging piece (23, 24). Screening device (1) according to one of the preceding claims, comprising the Characterized in that the screen rollers (2, 3)) are rotatable about a respective axis of rotation (R, S), these axes of rotation (R, S) in the mounted state of the screen device (1) at an angle (α) to each other are prepared. BE2017 / 5229 Fisk! BE2017 / 5229