SCREEN DEVICE

Abstract

A screen device (1) comprising two fabric rollers (23 24), which, in the mounted state of the screen device (1), are arranged at an angle (a) relative to each other, and comprising, for each fabric roller (23, 24):—a screen (2, 3) which can be rolled up and unrolled on the fabric roller (23, 24);—a bottom lath (4, 5), which in the mounted state of the screen device, is fastened to the screen (2, 3) on the side of the screen (2, 3) away from the fabric roller (23, 24);—and one or more screen and/or lath guides (6, 7), for guiding a lateral side of the screen (2, 3) and/or the bottom lath (4, 5); wherein, in the mounted state of the screen device (1), the bottom laths (4, 5) are rigidly connected to each other at the said angle (α).

Claims

1. Screen device comprising two fabric rollers, each, rotatable about a respective fabric roller axis, wherein the fabric roller axes of these fabric rollers in the mounted state of the screen device, are arranged at an angle relative to each other, and wherein the screen device, for each fabric roller: comprises a screen, which can be rolled up and unrolled on the fabric roller; comprises a bottom lath, which in the mounted state of the screen device, is fastened to the screen on a side of the screen distal from the fabric roller; and comprises one or more screen and/or lath guides, for guiding a lateral side of the screen and/or the bottom lath; characterized in that, in the mounted state of the screen device, the bottom laths are mutually connected at the said angle.

2. Screen device according to claim 1, characterized in that the guides are arranged only on the lateral side of the respective screen and/or the respective bottom lath, away from the said angle.

3. Screen device according to claim 1, characterized in that, for the guidance of the corresponding lateral side of each screen, a guide profile is fixedly arranged on the angle as a screen guide, and in that, on the lateral side of each respective screen and/or each respective bottom lath, away from the said angle, a guide profile for guiding this corresponding lateral side of the screen, is resiliently mounted in an outer profile of the screen guide, for the laterally resilient tensioning of the screen.

4. Screen device according to claim 3, characterized in that the guide profiles for guiding the lateral sides of the screens on the angle form part of a same screen guide.

5. Screen device according to claim 3, characterized in that the bottom laths comprise on the angle a recess, for fitting of the corresponding guide profile guidingly herein.

6. Screen device according to claim 3, characterized in that the guide profiles, on the angle, comprise click means for clicking these guide profiles in place on a fastening profile of the screen device.

7. Screen device according to claim 1, characterized in that the lateral sides of the screens and/or of the bottom laths, which are intended to be guided, are provided with one or more hook elements to hook into the screen and/or lath guides for guidance of these lateral sides in these screen and/or lath guides.

8. Screen device according to claim 7, characterized in that the screens, on their lateral side which is intended to be guided, are provided with a flexible thickening as the said hook element.

9. Screen device according to claim 8, characterized in that, in the mounted state of the screen device, the ends of the screens are clamped in the respective bottom laths, such that the flexible thickenings at these ends extend laterally relative to the respective bottom laths in order to form the said hook elements for the bottom laths.

10. Screen device according to claim 1, characterized in that the bottom laths are of hollow construction, and comprise an access opening to their cavity on the side of the said angle, and in that the screen device comprises an angle fastening element, comprising two legs which are arranged at the said angle relative to each other and are each fittable into the cavity of a respective bottom lath via the respective access opening, for the mutual connection of these bottom laths at the said angle.

11. Screen device according to claim 10, characterized in that the bottom laths comprise in their cavity a mounting slot, for fitting of the corresponding leg guidingly into this cavity.

12. Screen device according to claim 11, characterized in that the bottom laths comprise screw channels, which delimit their mounting slot.

13. Screen device according to claim 1, characterized in that the bottom laths are mitred at the relevant end in order to mutually connect these at the said angle.

14. Screen device according to claim 1, characterized in that this screen device is provided with drive means for the synchronous driving of both fabric rollers.

15. Screen device according to claim 14, characterized in that the said drive means comprises a bevel-geared transmission, for transmission of the drive of one of the two fabric rollers for driving of the other of the two fabric rollers.

Description

[0047] In this detailed description, reference is made by means of reference numerals to the hereto appended drawings, wherein in

[0048] FIG. 1 a screen device according to this invention is represented in perspective view;

[0049] FIG. 2 the bottom laths of the screen device from FIG. 1 are represented singly in greater detail in perspective view at the level of their angle joint, with one of the bottom laths in the disassembled state;

[0050] FIG. 3 the bottom laths of the screen device from FIG. 1 are represented singly in greater detail in cross section at the level of their angle joint, sectioned through one of the bottom laths according to its longitudinal direction and transversely through the other bottom lath,

[0051] FIG. 4 a second embodiment of a screen device according to this invention is represented in bottom view, with cut-away screen boxes, so that a view is given of the content of these screen boxes;

[0052] FIG. 5 a part of the screen device from FIG. 4 is represented in greater detail in bottom view at the level of the fixedly arranged screen guide thereof;

[0053] FIG. 6 the screen device from FIG. 4 is represented in elevation, with cut-away screen boxes, so that a view is given of the content of these screen boxes;

[0054] FIG. 7 the screen device from FIG. 4 is represented in perspective view from below, with cut-away screen boxes, so that a view is given of the content of these screen boxes.

[0055] The screen devices (1) depicted in the figures comprise two fabric rollers (23, 24), which are each accommodated in a respective screen box (8, 9) and only in the second depicted embodiment are visible in FIGS. 4-7. The fabric rollers (23, 24) are each rotatable about a respective fabric roller axis, wherein these fabric roller axes are arranged at an angle relative to each other. Given that these fabric roller axes extend according to the longitudinal direction of the screen boxes (8, 9), these screen boxes (8, 9) are hence also arranged at this said angle (α) relative to each other. To each of the fabric rollers (23, 24), a screen (2, 3) is fastened at one of its ends. Given that the fabric rollers (23, 24) are arranged rotatably about their fabric roller axis, the hereto fastened screens (2, 3) can be rolled up and unrolled on the respective fabric roller (23, 24).

[0056] To that end of the screens (2, 3) opposite to the end by which they are fastened to the respective fabric roller (23, 24) is respectively fastened a bottom lath (4, 5), so that the screens (2, 3) can sag under the weight of these bottom laths (4, 5). In this regard, the bottom laths (4, 5) comprise a mounting slot (13), as can be seen in FIGS. 2 and 3, in which a thickened margin of the respective screen (2, 3) can be fitted in order to fasten this screen (2, 3) to the bottom lath (4, 5).

[0057] On the lateral sides of the screens (2, 3) away from the angle (α), screen and lath guides (6, 7) are arranged. These screen and lath guides (6, 7) each comprise a fixedly arranged outer profile and a guide profile (12) fitted in this outer profile.

[0058] The screens (2, 3) are on this lateral side provided with a flexible thickening, which can be realized, for example, as a half zip fastener (19), as is depicted in the second embodiment. With this flexible thickening, the screens (2, 3) are hooked guidingly in place into a corresponding cavity (20) in the respective guide profile (12). These cavities (20) extend over the full length of these guide profiles (12).

[0059] The half zip fasteners (19) are preferably made of polyester or nylon in order to ensure a good guidance. There are also a number of alternatives for this type of half zip fastener (19) known as a flexible thickening (19), such as for example a cord which is fitted in the lateral side margin of the screen (2, 3), etc.

[0060] The guide profiles (12) are fitted with play in the outer profiles, wherein play is provided in a direction perpendicular to the longitudinal direction of these profiles. The guide profiles (12) are spring-cushioned with the aid of resilient material in the outer profile, so that the screens (2, 3) are spring-loaded. In this way, the screens (2, 3), in the event of possible overloading by, for example, a person knocking against the screen (2, 3), or under a wind load, can deflect somewhat, without damage to the screen (2, 3) or the screen device (1).

[0061] The respective ends of the bottom laths (4, 5) are on this lateral side away from the angle (a) fitted guidingly in the outer profile.

[0062] In the angle (α), the bottom laths (4, 5) are mutually connected.

[0063] The screen device (1) comprises in the first embodiment an angle fastening element (10) in order to be able to mutually connect the bottom laths (4, 5). To this end, the bottom laths (4, 5) are of hollow construction. If these are constructed substantially from a profile produced by extrusion, as is the case with the depicted bottom laths (4, 5), then this cavity (14, 15) will extend over the length of the relevant bottom lath (4, 5). The angle fastening element (10) is of virtually L-shaped construction and comprises two legs (16, 17), which are arranged at the relevant angle (α) relative to each other. Each of these legs (16, 17) is fittable into the cavity (14, 15) of a respective bottom lath (4, 5) via an access opening, as can be seen in FIGS. 2 and 3. In the cavity (14, 15) are respectively provided different screw channels (18), between which extend mounting slots which have dimensions corresponding to the leg (16, 17), so that the relevant leg (16, 17) of the angle fastening element (10) can be guidingly fitted herebetween. These screw channels (18) have in this case a dual function. On the one hand, they hold the leg (16, 17) in the desired place, whilst, on the other hand, screws can be fitted herein in order to be able, at the other end of the bottom lath (4, 5), to screw an end piece of the bottom lath (4, 5) onto this profile of the bottom lath (4, 5).

[0064] In place of or in addition to these screw channels (18), the cavity (14, 15) can alternatively itself also be accorded a shape corresponding to the respective leg (16, 17), or the cavity (14, 15) can be provided with internal vertical ribs or with a partition, etc. in order to be able to position the respective leg (16, 17) in this cavity (14, 15).

[0065] At the relevant end, the bottom laths (4, 5) are mitred (45° or more or less). The angle fastening element (10) can in this case be fitted fully into the bottom laths (4, 5), in which case the bottom laths (4, 5) butt one against the other and the angle fastening element (10) is hidden from view. Since the bottom laths (4, 5) have virtually the same cross section, a continuous whole is in this case formed at the angle (α).

[0066] In the second embodiment, the bottom laths (4, 5) can be mutually connected in an analogous manner.

[0067] In the first embodiment depicted in FIGS. 1-3, no screen and lath guides are arranged on the angle (α), so that, in the rolled-up state of the screens (2, 3), this angle below the screens (2, 3) and the hereto fastened bottom laths (4, 5) can be cleared, as can be seen in FIG. 1.

[0068] In the second embodiment, a guide profile (11) for guiding the lateral side of each screen (2, 3) is fixedly arranged on this angle (α) as the screen guide (11). This screen guide (11) is arranged between two screens (2, 3) and is provided with two cavities (20) for fitting of the flexible thickening (19) on the corresponding lateral side of these screens (2, 3) guidingly herein. This fixed screen guide (11) is here clicked in place on a fastening profile (26), wherein this screen guide (11) and this fastening profile (26) are provided with corresponding click means (25, 26) for the realization of this click joint. This screen guide (11) could however also be fastened to its environment without such click joint, by, for example, gluing, screwing, etc.

[0069] In the second screen device (1), in the bottom laths (4, 5), at the level of the fixedly arranged screen guide (11), there is made a recess (28), in which the fixedly arranged screen guide (11) can be guidingly fitted, so that both bottom laths (4, 5), during the roll-up and unrolling movement of the screens (2, 3), are also guided by this fixedly arranged screen guide (11).

[0070] Since the bottom laths (4, 5) in both depicted embodiments are mutually connected, the screens (2, 3) are preferably always rolled up and unrolled synchronously on the respective fabric rollers (23, 24). To this end, the screen device (1) can comprise drive means for the synchronous driving of these fabric rollers. Specifically, these drive means can for this comprise, for example, a bevel-geared transmission, for transmission of the drive of one of the two fabric rollers (23, 24) for driving of the other of the two fabric rollers (23, 24).

[0071] Such screen devices (1) can typically be arranged for a frame section (29), as depicted in FIGS. 4 to 7 for the second embodiment, in order to shield this frame section (29) at least partially from sunlight. If this frame section (29) can open, such screen devices (1) can typically also be used as a shield against insects. Such screen devices (1) can also be set up in free-standing arrangement or be accommodated in, for example, a terrace roof, in order to offer screening against sunlight or wind, etc. for an outside space.