ES2562108T3 - Display device - Google Patents

Abstract

Screen device (1) comprising: - a screen roller (2); - a screen (3) that can be wound on and unrolled from the screen roller (2); - a screen guide profile (4) on each side of the screen (3) in which the corresponding side part of the screen (3) can be adjusted in order to guide said side part during the winding / unwinding movement ; and - a fixing rail (5) on each side of the screen (3), comprising: - a lower part (6); - two vertical sides (7a, 7b) defining a groove (8), in which the corresponding screen guide profile (4) is adjusted in the mounting position; and - an anchor (9a, 9b) on both sides of the groove (8); wherein the screen guide profile (4) comprises two tabs (14a, 14b), each of which, in the mounting position, extends at least partially behind a corresponding anchor (9a, 9b) of the rail (5) fixing; whereby the display device (1) comprises intermediate elements (16a, 16b) that, in the mounting position, extend at least partially between the anchors (9a, 9b) of at least one fixing rail (5) and the corresponding tabs (14a, 14b) of at least one screen guide profile (4), characterized in that the intermediate elements (16a, 16b) are configured such that their size, in the mounting position, measured in The direction from the anchors (9a, 9b) to the tabs (14a, 14b), is smaller closer to the screen roller (2) than farther from the screen roller (2), and varies in such a way that this size increases in the direction of unwinding of the screen (3).

Description

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DESCRIPTION

Display device

The present invention relates to a screen device comprising: a screen roller;

- a screen that can be rolled up and unrolled from the screen roller;

- a screen guide profile on each side of the screen on which the corresponding side part of the screen can be adjusted in order to guide said side part during the winding / unwinding movement;

- and a fixing rail on each side of the screen, comprising:

- a lower part;

- two vertical sides delimiting a groove, in which the corresponding screen guide profile is adjusted in the mounting position;

- and an anchor on both sides of the groove;

wherein the screen guide profile comprises two tabs, each of which, in the mounting position, extends at least partially behind a corresponding anchor of the fixing rail.

Such a screen is normally used to screen a door or window opening or to cover a terrace. With such screen devices, it is found that the screen guide profiles wear more rapidly closer to the screen roller than farther from the screen roller, as the screen moves up and down more often in the section closer to the screen roller than the section further from the screen roller. In any case, the screen will pass near the screen roller more often than farther from it, since the screen does not come down completely each time. If, in addition, the screen is tensioned laterally, this problem is further aggravated. The possibility of tensioning the screen to a lesser extent may be considered in order to limit this type of wear, but this will lead to the inconveniences associated with a non-tensioned screen. The screen will flutter with the wind and be combined.

Document DE 10 2006 020573 A1 describes a display device according to the preamble of the

claim 1.

A solution could be sought in the form of a screen device as described in JP 2004-308170 A. In this case, the screen guide profiles are composed of two parts, after having made an incision, and are connected on the back The tabs at the top of the screen guide profiles narrow in a tapered tapered manner. Therefore, the screen guide profiles are provided in the fixing lane with more play on its upper side in order to ensure that a rolled screen will slide less easily out of these screen guide profiles. However, due to this game, the tension acting on the screen is also slightly reduced in a localized way, closer to the screen roller.

However, the tabs at the top of the screen guide profiles become narrower so that they run the risk of breaking. Tabs that break or come loose completely in the location of the upper part of the screen guide profiles lead to a risk of breakage in the location of the back, in particular, with the change of temperatures and loads.

The additional set created in this way is also very limited in view of the limited thickness of the eyelashes.

The upper part of the screen guide profiles, above the back, is only a few centimeters in length, so that a notch or a bend is required to make this part bend. However, in such display devices, a screen is normally provided with flexible thickening in its lateral parts, such as, for example, a half zip, in order to improve the guidance thereof in the guide profile of screen. However, these flexible thickenings make the screen more easily engage in the screen guide profile at the location of this fold. An additional drawback is the fact that the fold makes it more difficult to adjust the screen guide profile in a fixing rail (side guide). In addition, the screen guide profile will also wear more quickly at the location of the fold.

Therefore, an object of the present invention is to provide a better solution to the wear problem mentioned above without finding the drawbacks of the partial solution offered by the screen device of JP 2004-308170 A.

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This object is achieved by providing a screen device, comprising: a screen roller;

- a screen that can be rolled up and unrolled from the screen roller;

- a screen guide profile on each side of the screen on which the corresponding side part of the screen can be adjusted in order to guide said side part during the winding / unwinding movement; Y

- a fixing rail on each side of the screen, comprising:

a lower part;

- two vertical sides delimiting a groove, in which the corresponding screen guide profile is adjusted in the mounting position;

- and an anchor on both sides of the groove;

wherein the screen guide profile comprises two tabs, each of which, in the mounting position, extends at least partially behind a corresponding anchor of the fixing rail and in which the screen device comprises elements intermediates which, in the mounting position, extend at least partially between the anchors of at least one fixing rail and the corresponding tabs of at least one screen guide profile that are configured such that their size, in the position Mounting, measured in the direction from the anchors to the tabs, is smaller closer to the screen roller than farther from the screen roller and varies in such a way that this size increases in the direction of unrolling the screen.

Due to the fact that the Intermediate elements ensure that the screen guide profile closer to the screen roller is closer to the anchors, the screen guide profiles on each side of the screen can also be approached together in a localized manner to the same, without said screen guide profiles having to be provided with a fold for this purpose. As a result, the tension on the screen is less closer to the screen roller than further from the screen roller. If the side parts of the screen are provided with flexible thickeners that adapt to the screen guide profiles in a guided manner, the compression effort between said flexible greases and the screen guide profile is less on the roller side of screen.

According to the Invention, the tension in the screen is thus reduced in a localized manner where the wear is greatest, without the known drawbacks of the screen device of JP 2004-308170 A. There is no risk of the eyelashes breaking, since that these don't have to narrow. Similarly, there is no risk of breakage in the location of a back, since no incision has to be made in a screen guide profile. The distance over which the screen guide profile can be folded may be much greater than the top of the screen guide profile of the screen device of JP 2004-308170 A. The inward bend of the screen guide profile Screen can also be much larger than the thickness of your eyelashes. The largest size of the intermediate elements mentioned above can be selected to be a multiple of the thickness of the eyelashes. Optionally, the groove depth in the fixing rail will have to be modified for this purpose.

If the screen is provided with flexible greases on its side, they cannot get caught in the screen guide profile since a bend or notch in the screen guide profile is not required.

In a more specific first embodiment, at least a part of said intermediate elements is connected to the corresponding anchors of the fixing rail. In this case, these could be fixedly connected to the anchors of the fixing rail, for example, if this fixing rail is produced by means of extrusion, providing intermediate elements such as vertical edges in the fixing rail that have the largest size mentioned above along the entire lateral part and then partially burnish them. It is also possible, for example, to provide separate intermediate elements that can be attached to the fixing rail. In this case, a finishing treatment of the fixing rail (such as burnishing) is not required, but the intermediate elements will have to join the fixing rail during installation.

In particular, the at least one fixing rail of a display device according to the invention can comprise a collar at the ends of its vertical sides, away from the bottom, a collar that partially delimits the groove, where the corresponding intermediate element forms part of a vertical edge that extends towards the bottom along said collar.

In a second more specific embodiment, at least a portion of said intermediate elements is connected to the tabs of the corresponding screen guide profile. In this case, these intermediate elements can also, for example, be fixedly connected to the tabs of the screen guide profile, if the guide profile of

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The screen is produced by means of extrusion, firstly providing intermediate elements such as vertical borders on the tabs, which have the largest size mentioned above along the entire lateral part and then partially burnishing them . The tabs themselves do not burnish, as with the screen device of JP 2004-308170 A. It is also possible, for example, to provide separate intermediate elements in the screen guide profile in a removable manner. In this case, an additional finishing treatment of the screen guide profile (such as burnishing thereof) is not required, but the intermediate elements will have to join the screen guide profile during installation. Preferably, the screen guide profile is always produced as a single piece, in which case it remains uninterrupted throughout its entire length. The tabs of said screen guide profile are also preferably produced as a single and uninterrupted piece along the entire length of the screen guide profile. Preferably, a single screen guide profile is also provided for each side of the screen.

As an alternative, but less preferred, the intermediate elements can also be provided as separate elements that are not attached to the fixing rail or the screen guide profile. Next, each of said separate intermediate elements preferably extends along the entire length of the fixing rail and / or the screen guide profile, so that said size thereof is always the desired size at each location. With the intermediate elements separated, which must be adjusted in an intermediate space with respect to each other between these profiles through the height of the fixing rail and the screen guide profile in order to achieve the desired size at each height, these they are preferably attached to the fixing rail and / or to the screen guide profile in order to avoid that, during use, said size of the intermediate elements begins to deviate from the desired size at a certain height.

With a specific embodiment of a display device according to the present invention, at least a part of the intermediate elements is designed to be resilient. In this way, these intermediate elements can also serve, simultaneously, to suspend the screen guide profile with respect to the fixing rail and / or to dampen, so that the non-separated elements have to be provided for this purpose. For example, intermediate elements suspended in the screen guide profile and / or in the fixing rail can also be provided in an easily mountable (removable) manner. For this purpose, the screen guide profile and / or the fixing rail can be provided, for example, with fastening slots in which these intermediate elements can be fixed, due to their suspension properties.

Preferably, the at least one screen guide profile of a screen device according to the present invention is designed to be flexible, so that the shape of this screen guide profile can be automatically adapted to the shape of the corresponding intermediate elements. Therefore, this screen guide profile can be linked everywhere with these intermediate elements, without it showing a fold. Therefore, any effort that occurs can be transferred optimally between these components of the display device. In the locations where the intermediate elements show a fold, the movement of the lateral part of the screen in the screen guide profile continues smoothly, because the corresponding screen guide profile is designed to be flexible, avoiding this so it gets stuck. The wear of the screen guide profile is also more limited than if the screen guide profile itself were provided bent completely. Preferably, the flexibility of the screen guide profile is selected as a compromise between sufficient flexibility, which allows it to adapt quickly in order to lean against the intermediate elements, and sufficient stiffness in cross-section, preventing the lateral part of the screen is released from it.

The size of the intermediate elements of a screen device according to the invention preferably varies such that, when the screen is unwound, the at least one screen guide profile extends substantially along a continuous and curved line. In this way, the screen guide has a continuous and gradual transition. Tension on the screen will also build up gradually, so that the screen will not be subject to sudden changes in voltage, provided there are no external loads during normal use.

In order to keep the screen under optimum tension, the size of the intermediate elements in the mounting position, seen in the direction of the anchors towards the flanges, remains, preferably, substantially the same along the minus half the length of the corresponding fixing rail, adjacent to the end that is disposed away from the screen roller in the mounting position.

An especially preferred embodiment of a screen device according to the present invention comprises a lower slat that fits on the side of the screen opposite the side where the screen is wound and unwound, comprises one or more slat guide elements that are joined to the ends of the lower slat and comprises a slat guide profile on each side of the screen on which one or more corresponding slat guide elements can be adjusted in order to guide the lower slat during the winding movement / unrolled from the screen, the screen guide profile and the slat guide profile disposed one behind the other on the same side of the screen, viewed in a direction at right angles to the plane of the unwound screen.

The object of the present invention is also further achieved by providing a terrace cover comprising a screen device according to the present invention.

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Next, the present invention will be explained in more detail with reference to the following detailed description of a preferred embodiment of a display device according to the present invention. This description is only intended to provide illustrative examples and indicate other advantages and features of this display device and, therefore, should not be construed in any way as a limitation of the area of application of the Invention or of the patent rights defined in the claims. .

In this detailed description, reference numbers are used to refer to the attached drawings, in which:

- Figure 1 schematically shows a front view of the upper left corner of a screen device according to the present invention with an open screen housing and a cross-sectional side guide;

- Figure 2 shows a first embodiment of the right side guide of the screen device of Figure 1 in perspective, in longitudinal section, to illustrate the screen guide profile that fits therein and is not shown in cross section ;

- Figure 3 shows a front view of the first embodiment of the right side guide of the screen device of Figure 1, in longitudinal section, to illustrate the screen guide profile that fits therein and is not shown in cross section;

- Figure 4 shows a front view of the first embodiment of the right side guide of the screen device of Figure 1, in longitudinal section as shown in Figure 3, without the screen guide profile;

- Figure 5 shows a separate front view of the right screen guide profile of the screen device of Figure 1, in the position in which it adapts to the side guide of Figure 3,

- Figure 6 shows a right part of the screen device of Figure 1, in cross-section through the first embodiment of the right side guide along the axis AA ’, as indicated in Figure 3;

- Figure 7 shows a right part of the device of the screen of Figure 1, in cross-section through the first embodiment of the right side guide along the axis BB ’, as indicated in Figure 3;

Figure 8 shows a front view of a second embodiment of the right side guide of the screen device of Figure 1, in longitudinal section, with intermediate elements arranged therein and without screen guide profile;

Figure 9 shows the second embodiment of the right side guide of the screen guide of Figure 1, in cross-section along the axis CC ', as indicated in Figure 8, with the screen guide profile and the screen arranged in the screen guide profile;

Figure 10 shows the second embodiment of the right side guide of the screen guide of Figure 1, in cross-section along the axis DD ', as indicated in Figure 8, with the screen guide profile and the screen arranged in the screen guide profile;

- Figure 11 shows the second embodiment of the right side guide of the screen guide of Figure 1, in cross-section along the axis EE ', as indicated in Figure 8, with the screen guide profile and the screen arranged in the screen guide profile;

- Figure 12 shows the second embodiment of the right side guide of the screen guide of figure 1, in cross section along the axis FF ', as indicated in figure 8, with the screen guide profile and the screen arranged in the screen guide profile.

The screen device (1) illustrated in Figure 1 comprises a screen (3) that can be wound in and unrolled from the screen roller (2). On one side, the screen (3) is attached to the screen roller (2) for this purpose. The screen (3) is provided in its two lateral parts with a half rack (11) that forms a flexible thickening (11) of said lateral parts. Numerous alternatives for said half rack (11) are also known as flexible thickening, such as, for example, a chain provided on the side edge of the screen, etc.

During the winding / unwinding movement of the screen (3), the flexible thickening (11) of each side part is guided in a cavity (12) (see Figure 2) in a screen guide profile (4), such as It can be seen in Figures 6, 7 and 9-12. In this case, the screen (3) extends through an access opening (13) in said cavity (12) (see Figure 2).

The screen guide profiles (4) of the screen device (1) are in turn adapted to the corresponding grooves (8) in the lateral guides (5) that also serve as fixing rails (5), as can see figures 1-3, 6-7, 9-12. These fixing rails (5) extend practically at right angles to the screen roller (2), on both sides of the screen (3). Each lateral guide (5) comprises a lower part (6) and

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two vertical sides (7a, 7b), which delimit said slot (8). At the ends of the vertical sides (7a, 7b), away from the lower part (6), each lateral guide (5) further comprises a collar (10a, 10b) that partially delimits the groove (8).

Said collar (10a, 10b) is provided with vertical edges (9a, 9b, 16a, 16b) that extend substantially parallel to the vertical sides (7a, 7b) towards the lower part (6). Said vertical edges (9a, 9b, 16a, 16b) comprise anchors (9a, 9b) behind which the tabs (14a, 14b) of the screen guide profile (4) extend partially.

In the first embodiment of the lateral guide (5), as illustrated in Figures 2-3 and 6-7, the vertical edges (9a, 9b, 16a, 16b) adjacent to the anchors (9a, 9b) comprise elements (16a, 16b) Intermediates. Alternatively, it would also be possible, for example, to provide vertical edges parallel to the collar (10a, 10b) and substantially at right angles to the vertical sides (7a, 7b) as anchors and / or intermediate elements. It is also possible, for example, to provide the ends of the vertical sides (7a, 7b) with thickeners that simultaneously serve as collars and as anchors.

The intermediate elements (16a, 16b) of this first embodiment can be formed integrally with the lateral guide (5) producing, for example, said lateral guide (5) by means of extrusion, in which case the edges (9a, 9b, 16a, 16b) verticals are designed to be of maximum height and, for example, burnished in order to form the desired elements (16a, 16b).

As can be clearly seen in Figure 4, the intermediate elements (16a, 16b) in this embodiment have a length that is equal to the length of the lateral guide (5) and said intermediate elements (16a, 16b), for more than half of its length, adjacent to the end that is disposed away from the screen roller (2) in the mounting position, extend substantially parallel to the lower part (6) and said intermediate elements (16a, 16b), towards the roller ( 2) screen, gradually extend further and further away from the bottom (6).

The intermediate elements (16a, 16b) of the second embodiment, as illustrated in Figures 8-12, do not form an integral part of the lateral guide (5), but fit into a fastening groove of said guide (5). ) lateral as separate elements (16a, 16b). In this case, the intermediate elements (16a, 16b) are much shorter than the length of the lateral guide (5), several intermediate elements (16a, 16b) being arranged in each case at an intermediate distance, distributed along the length of the lateral guide (5). Closer to the screen roller (2), its size, measured in the mounting position in the direction from the anchors (9a, 9b) to the tabs (14a, 14b), is smaller than farther from the roller (2) of screen and varies in such a way that said size increases in the direction of unwinding of the screen (3). With the three upper intermediate elements (16a, 16b), this size varies with these same intermediate elements (16a, 16b). With the four Lower Intermediate elements (16a, 16b), that size remains the same.

When said size of the intermediate elements (16a, 16b) changes more significantly, the intermediate elements (16a, 16b) are arranged at a shorter distance from each other in order to be able to support the screen guide profile (4) as efficiently as possible, so that this profile (4) follows a curved line that, with an unwound screen (3), is as continuous as possible. When the size of the intermediate elements (16a, 16b) varies less, or remains the same, the intermediate elements (16a, 16b) may be arranged more separately. In this case, the four lower intermediate elements (16a, 16b) that are of equal size extend together along more than half the length of the lateral guide (5).

The screen guide profiles (4) are designed, in turn, to be flexible, so that in both embodiments these can be attached as firmly as possible to the shape of the intermediate elements (16a, 16b) of the guides ( 5) lateral, extending substantially along a continuous and curved line when the screen (3) is unwound, as can be seen in the figures.

In this way, the ends of the screen guide profiles (4) are closer to each other closer to the screen roller (2), so that the screen (3) is subjected to a lower tension closer to the roller (2) screen and undergoes less wear. Due to the fact that the screen guide profiles (4) extend parallel to each other over more than half of their length, the screen (3) can be kept under sufficient tension to prevent it from waving or combating, etc.

In the second embodiment, the intermediate elements (16a, 16b) are of a flexible design, so that they can serve to dampen the movements of the screen guide profile (4) as damping elements (15a, 15b) at the same time. To this end, said intermediate elements (16a, 16b) are elastic enough so that they can perform a damping action, but rigid enough to support the screen guide profile (4) in a satisfactory manner.

In the first embodiment, the separate damping elements (15a, 15b) are fitted in a fastening groove of the lateral guide (5) and extend between the collar (10a, 10b) of the fixing rail (5) and the flanges (14a, 14b) of the screen guide profile (4).

On the side of the screen (3) opposite the side where the screen (3) is rolled in and unwound from the roller (2) of

screen, a lower slat (17) is adjusted, which has been shown in figures 6 and 7. At the ends of the lower slat (17), guide wheels (18) are attached which fit in a guide profile slat (19) in a guiding manner in order to guide the lower slat (17) during the winding / unwinding movement of the screen (3). The screen guide profile (4) and the slat guide profile (19) on the same side of the screen (3) are arranged one behind the other, viewed in a direction at right angles to the plane of the unrolled screen (3). The slat guide profile (19) is of rigid design and extends substantially along a straight line in its longitudinal direction. As a result, the path traveled by the guide wheels (18) of the lower blade (17) is substantially rectilinear, while the flexible lateral greasing (11) of the screen (3) is guided along a line smooth curve in the screen guide profile (4). If a tensioning system is installed in such a screen device 10, in which the screen is kept under tension in the unwinding direction by means of a tensioning belt or tensioning chain or tensioning cable that is attached to one end of the lower blade at one of its ends, then this tensioning belt or tensioning chain or tensioning cable can continue to move straight.

The illustrated display device (1) may, for example, be part of a terrace cover used to cover a terrace.

Claims (10)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 1. Display device (1) comprising: - a screen roller (2); - a screen (3) that can be wound in and unrolled from the screen roller (2); - a screen guide profile (4) on each side of the screen (3) in which the corresponding side part of the screen (3) can be adjusted in order to guide said side part during the winding / unwinding movement ; Y - a fixing rail (5) on each side of the screen (3), comprising: - a lower part (6); - two vertical sides (7a, 7b) defining a groove (8), in which the corresponding screen guide profile (4) is adjusted in the mounting position; Y - an anchor (9a, 9b) on both sides of the groove (8); wherein the screen guide profile (4) comprises two tabs (14a, 14b), each of which, in the mounting position, extends at least partially behind a corresponding anchor (9a, 9b) of the rail (5) fixing; whereby the display device (1) comprises intermediate elements (16a, 16b) that, in the mounting position, extend at least partially between the anchors (9a, 9b) of at least one fixing rail (5) and the corresponding tabs (14a, 14b) of at least one screen guide profile (4), characterized in that the intermediate elements (16a, 16b) are configured such that their size, in the mounting position, measured in the direction from the anchors (9a, 9b) to the flanges (14a, 14b), is smaller more near the screen roller (2) that is further from the screen roller (2), and varies in such a way that this size increases in the direction of unwinding of the screen (3). 2. Screen device (1) according to claim 1, characterized in that at least a part of the intermediate elements (16a, 16b) is connected to the anchors (9a, 9b). 3. Screen device (1) according to one of the preceding claims, characterized in that the at least one fixing rail (5) comprises a collar (10a, 10b) at the ends of the vertical sides (7a, 7b), far away of the lower part (6), a collar that partially delimits the groove (8), and because the corresponding intermediate element (16a, 16b) forms part of a vertical edge (9a, 9b, 16a, 16b) that extends towards the lower part (6) along said collar (10a, 10b). 4. Screen device (1) according to one of the preceding claims, characterized in that at least a part of the intermediate elements (16a, 16b) is connected to the tabs (14a, 14b). 5. Display device (1) according to one of the preceding claims, characterized in that at least a part of the intermediate elements (16a, 16b) is designed to be resilient. 6. Screen device (1) according to one of the preceding claims, characterized in that the at least one screen guide profile (4) is designed to be flexible. 7. Screen device (1) according to one of the preceding claims, characterized in that said size of the intermediate elements (16a, 16b) varies in such a way that, when the screen (3) is unwound, the at least one profile ( 4) Screen guide extends substantially along a continuous and curved line. 8. Screen device (1) according to one of the preceding claims, characterized in that said size of the intermediate elements (16a, 16b) in the mounting position, seen in the direction of the anchors (9a, 9b) towards the flanges (14a, 14b), remains substantially the same along at least half the length of the corresponding fixing rail (5), adjacent to the end that is disposed away from the screen roller (2) in the mounting position . 9. Screen device (1) according to one of the preceding claims, characterized in that the screen device (1) comprises a lower slat (17) that fits on the side of the screen (3) opposite the side where it is wound and the screen (3) is unwound, it comprises one or more slat guide elements (18) that are attached to the ends of the bottom slat (17) and comprises a slat guide profile (19) on each side part of the screen (3) in which one or more corresponding slat guide elements (18) can be adjusted in order to guide the lower slat (17) during the winding / unwinding movement of the screen (3), the profile being (4) screen guide and slat guide profile (19) arranged one behind the other on the same side of the screen (3), seen in a direction at right angles to the plane of the unwound screen (3). 10. Terrace cover, comprising a display device (1) according to one of the preceding claims.