EP2122103B1 - Device for shading a room - Google Patents

Description

The invention relates to a device for shading a room.

In particular, the invention relates to a horizontal blind with which building penetrations, for example windows or doors, can optionally be shaded against incident sunlight.

Such a horizontal blind is for example from the DE 197 42 752 A1 known. In the known horizontal blind, it is disadvantageously only possible to shade the building opening from above continuously. As a result, it is necessary to shade the room, in particular when the sun is low. This in turn requires artificial lighting of the room with electric light.

The US 2004/0244924 A1 discloses a device for shadowing a space, comprising two guide profiles disposed opposite one another, wherein a movable carriage is accommodated in each of the guide profiles, wherein a planar shading element is fastened to the carriage, so that it can be moved by the carriages with respect to the guide profiles.

The object of the invention is to eliminate the disadvantages of the prior art. In particular, a device is to be specified with which a room can be shaded independently of the angle of incidence of the sun and, at the same time, optionally the brightness in the room can be adjusted. According to a further object of the invention, the device is intended to help save energy.

This object is solved by the features of claim 1. Advantageous embodiments of the invention will become apparent from the features of claims 2 to 11.

• zwei einander gegenüberliegende, im Wesentlichen vertikal angeordnete Führungsprofile,
• wobei in jedem der Führungsprofile ein vertikal verfahrbarer Schlitten aufgenommen ist, und
• wobei ein flächiges Abschattungselement an den in einander gegenüber liegender Anordnung befindlichen Schlitten befestigt ist, so dass es geführt durch die Schlitten vertikal bezüglich der Führungsprofile verfahrbar ist.

According to the invention there is provided a device for shading a room, comprising:

• two opposing, substantially vertically arranged guide profiles,
• wherein in each of the guide profiles, a vertically movable carriage is received, and
• wherein a flat shading element is attached to the lying in opposite arrangement slide so that it is guided by the slide vertically with respect to the guide profiles movable.

For the purposes of the present invention, a "flat shading element" is understood to mean an element which is either impermeable to sunlight or only partially permeable. To enable a vertical mobility of the shading element, this has a lower height than the guide profiles. Usually, a ratio of the height of the shading elements to the height of the guide _profiles H _{shading element} / H _{guide profile is} less than 0.5, preferably less than 0.4, particularly preferably less than 0.3. On the other hand, a width of the shading element is usually much larger than the height of the shading element. Usually, the width is more than twice the height of the shading element.

With the proposed device, it is possible, depending on the position of the sun, to move the shading element into a suitable vertical position, so that the space is selectively there is shaded where the incoming sunlight disturbs. Incidentally, the room can remain illuminated by sunlight, so that it is not necessary to connect electrical light sources. The proposed device saves space and can be readily to existing building openings, in particular windows, doors and the like. Mount. There is no or no significant interference in the building body required. The proposed device is particularly universal. It can also be used, for example, as a room divider for the selective subdivision of a room. In this case, the guide profiles extend over the entire height of the space to be divided.

According to the invention, it is further provided that the shading element is fastened to the carriage by means of at least one flexible intermediate element. Preferably, the shading element, which is usually rectangular in shape, is fastened to each slide with two flexible intermediate elements. In this case, the flexible intermediate elements are each fastened in the region of the corners of the shading element.

The flexible intermediate element is preferably a rubber element. Other materials with suitable flexible properties are suitable for the production of the flexible intermediate element. The flexible intermediate element is suitably fastened by means of a screw on the carriage. The provision of the proposed flexible intermediate element contributes to the fact that during vertical displacement of the shading element tilting can be avoided even if the shading element is displaced by attacking in the vicinity of one of the two carriages.

According to a further embodiment, it is provided that the shading element is held in a frame. This allows in particular a taut holding flexible shading elements, which are made for example of textiles. The shading element is expediently detached from the frame by means of a fastening means. The fastening means may be, for example, a strip-like hook-and-loop fastener. Of course it is also possible as a fastener different elements, such as hooks, one or more zippers, terminal strips or the like. Provide.

According to an advantageous embodiment of the invention, a latchable first cover profile for covering the fastening means is attached to the frame. This can be achieved a visually pleasing appearance. Furthermore, this provides additional protection against unintentional release of the fastening means. By locking the cover profile, it can be removed and replaced without the use of a tool. This simplifies the accessibility to the fastener.

According to a further embodiment of the invention, the frame and / or the guide profile is made of extruded aluminum. This can be ensured in particular a contributing to the prevention of unwanted tilting stability of the frame. The guide profile may alternatively be made of a dimensionally stable plastic.

The fixation of the vertical position of the shading element can be generated by different means. For example, it is possible to fix the adjusted vertical position of the shading element frictionally, by the provision of locking elements, bars and the like. According to a particularly advantageous embodiment, the fixing of the vertical position by means of a weight of the shading element compensating counterweight. For this purpose, a deflection roller may be provided at an upper end of the guide profile, over which a cable is guided, which is fastened with its one end to the carriage and with its other end to a balance weight. The balancing weight is such that it is about half of the Weight of the shading element and the two carriages corresponds.

According to a particularly advantageous embodiment, the balance weight is guided in at least one guide rail provided on the guide rail. This can be counteracted tilting of the guide weight.

According to a further embodiment, the guide rail is provided in the guide profile in a closable with a second cover cavity. Thus, an accidental intervention in the vertical displacement of the balance weight can be avoided. Furthermore, an undesirable contamination of the guide rail is counteracted. At the same time, however, the balance weight remains easily accessible for assembly and adaptation purposes. Appropriately, in this context, the second cover profile can be locked with the guide profile. This allows attachment and detachment of the second cover profile without the use of a tool. In particular, the assembly of the device can be accelerated.

According to a further embodiment, the balance weight has a first groove, with which it is guided in a web formed as the first guide rail. The term "bridge" is to be understood here in general. It is a linear survey. It can also be provided a plurality of mutually parallel such linear elevations for guiding the guide profile.

According to a further advantageous embodiment of the invention, the balance weight on one of the first groove opposite the second groove, with which it is guided in a web designed as a second guide rail. The second guide rail is - as the first guide rail - in the provided with the second cover profile closable cavity of the guide profile. The proposed two-fold leadership of the balance weight is counteracted in particular the generation of noise when moving. For this purpose, it may further be provided that the first and possibly the second groove is / are provided in a first and possibly second sliding block held in the balance weight. The provision of a sliding block allows the use of a different material from the balance weight. It has proved to be particularly useful that the nut is made of plastic or felt. The proposed materials slide particularly easily and noiselessly along the first and / or second guide rail.

From manufacturing technical advantage, it is that the first and / or second guide rail is / are part of the extruded guide profile. This can be omitted a special assembly of the guide rails.

In a particularly demanding solution, an electric motor can also be accommodated in the balance weight. Furthermore, a coupling for selectively producing a frictional connection between the guide profile and the electric motor can be provided. This allows an optional electromotive or manual adjustment of the shading element. For electromotive adjustment of the shading element of the electric motor can be pivotally held on the counterweight and by means of an electromagnet in a coupled, a frictional connection with the guide profile effecting position to be pivoted. In this case, the electromagnet and the electric motor can be switched so that when a caused by an activation of the electromagnet pivoting of the electric motor is turned on automatically. In this case, a wheel for producing a frictional connection with the guide profile can be provided on the electric motor be. Of course, instead of the wheel, the electric motor can also be provided with a pinion which, for example, engages in a toothed strip provided on the guide profile.

For power supply can be provided on the guide profile two first busbars for supplying the electric motor connected via corresponding sliding contacts electric motor. The sliding contacts can for example be attached to the balance weight. Because of the exact guidance of the balance weight in the first and / or second guide rail, a good electrical contact is ensured at all times.

According to a further embodiment of the invention it is provided that the shading element is a photovoltaic element and at least on a two slide two further sliding contacts for discharging the current generated by the photovoltaic element is provided on two provided on the associated guide profile second busbars. The photovoltaic element may be a conventional photovoltaic element. When using the proposed device, for example, for shading buildings with large windows, especially office buildings or the like., It is thus possible, for example, at the weekend to completely shade such buildings with photovoltaic elements and thus to produce electricity in an environmentally friendly manner. The produced current can also be used, in particular, to charge a rechargeable battery with which the electric motor can be operated for electrical adjustment of the shading element.

According to an alternative embodiment, the shading element is a plate-like container in which a heat storage medium is excluded. This makes it possible for the result Store the shading with the shading element and return it to the shaded area at night. This can save heating costs.

As the heat storage medium, a material having a solid / liquid phase transition region in the range of 10 to 25 ° C is preferably used. As a result of the phase transition, such a material can store heat. The heat storage medium may be one selected from the group consisting of salt: CaCl ₂ * 6 H ₂ O, Na ₂ CO ₃ * 10H ₂ O, Na ₂ HPO ₄ * 12H ₂ O, Na ₂ SO ₄ * 10 H ₂ O, Na ₂ S ₂ O ₃ .5H ₂ O.

wobei

• H_{Abschattungselement} die Höhe eines Abschattungselements,
• n die Anzahl der in gestaffelter Anordnung vorgesehenen Abschattungselemente und
• H_Abschattung die Höhe des abzuschattenden Bereichs ist.

According to a particularly advantageous embodiment, several, each held vertically movable in two guide profiles shading are arranged in staggered arrangement. This makes it possible to combine different shading elements with each other. Furthermore, it is thus possible to shade either a building breakthrough or a room completely or even largely. In this case, a height of the shading elements is selected such that the following relationship applies: $${\mathrm{H}}_{\mathrm{shading}}*\mathrm{n}\ge {\mathrm{H}}_{\mathrm{shading}}.$$

in which

• H _{shading element} the height of a shading element,
• n the number of shading elements provided in staggered arrangement and
• H _{shading is} the height of the shaded area.

Fig. 1

eine Vorderansicht einer erfindungsgemäßen Vorrichtung, wobei ein erstes und ein zweites Abdeckprofil entfernt sind,

Fig. 2

eine Rückansicht gemäß Fig. 1,

Fig. 3

eine Detailansicht auf das Ausgleichsgewicht gemäß Fig. 1,

Fig. 4

eine Schnittansicht gemäß der Schnittlinie A-A in Fig. 3,

Fig. 5

eine Schnittansicht durch ein Führungsprofil mit darin aufgenommenem Schlitten,

Fig. 6

eine Schnittansicht durch ein Schlittenprofil,

Fig. 7

eine Schnittansicht durch ein Rahmenprofil,

Fig. 8

eine Schnittansicht durch ein erstes Abdeckprofil,

Fig. 9

eine Schnittansicht des Führungsprofils,

Fig. 10

eine Schnittansicht eines zweiten Abdeckprofils,

Fig. 11

einen Horizontalschnitt durch einen oberen Abschnitt des Führungsprofils,

Fig. 12

eine Querschnittsansicht gemäß Fig. 11,

Fig. 13

eine Seitenansicht eines Abschnitts eines Gegengewichts,

Fig. 14

eine Schnittansicht gemäß der Schnittlinie A-A in Fig. 13,

Fig. 15

eine Seitenansicht eines Rahmens mit daran angebrachten Schlitten,

Fig. 16

eine Schnittansicht gemäß Fig. 15,

Fig. 17

eine Schnittansicht durch mehrere gestaffelt hintereinander vorgesehene Vorrichtungen,

Fig. 18

eine schematische Ansicht durch ein Gegengewicht mit einer darin aufgenommenen Antriebsvorrichtung im Antriebszustand und

Fig. 19

das Gegengewicht gemäß Fig. 18 mit der Antriebsvorrichtung im Ruhezustand.

An exemplary embodiment of the invention will be explained in more detail with reference to the drawings. Show it:

Fig. 1

a front view of a device according to the invention, wherein a first and a second cover profile are removed,

Fig. 2

a rear view according to Fig. 1 .

Fig. 3

a detailed view of the balance weight according to Fig. 1 .

Fig. 4

a sectional view along the section line AA in Fig. 3 .

Fig. 5

a sectional view through a guide profile with carriage received therein,

Fig. 6

a sectional view through a carriage profile,

Fig. 7

a sectional view through a frame profile,

Fig. 8

a sectional view through a first cover profile,

Fig. 9

a sectional view of the guide profile,

Fig. 10

a sectional view of a second cover profile,

Fig. 11

a horizontal section through an upper portion of the guide profile,

Fig. 12

a cross-sectional view according to Fig. 11 .

Fig. 13

a side view of a portion of a counterweight,

Fig. 14

a sectional view along the section line AA in Fig. 13 .

Fig. 15

a side view of a frame with attached carriage,

Fig. 16

a sectional view according to Fig. 15 .

Fig. 17

a sectional view through a plurality of staggered successively provided devices,

Fig. 18

a schematic view through a counterweight with a drive device received therein in the drive state and

Fig. 19

the counterweight according to Fig. 18 with the drive device at rest.

In the Fig. 1 and 2 a frame 1 is vertically movably connected between two vertical guide profiles 2 via carriages generally designated by the reference numeral 3. How the particular Fig. 1 can be seen, the guide profile 2 has two opposite guide rails 4, which extend from an inner wall of the guide profile 2 in the manner of a web. In the guide rail 4, a counterweight 5 is guided vertically movable, which is connected via a guided over a pulley 6 cable 7 with the carriage 3.

The 3 and 4 There are detailed views of the counterweight 5. It has two first recesses 8 in opposing arrangement, in which sliding blocks 9 are inserted positively. The sliding blocks 9 may for example be made of plastic, preferably made of Teflon or felt. In, preferably made of an extruded aluminum profile, frame 1 a planar shading means 10 is held. The shading means 10 may be on the frame 1 releasably secured. For this purpose, for example, a hook and loop fastener or the like. Be provided. A designated by the reference numeral 11 mounting area is covered by a latched with the frame 1 first cover 12.

As in particular from Fig. 4 it can be seen, the guide rails 4 are formed by two each provided in opposing arrangement webs. By means of a latched with the guide profile 2 second cover 13, a cavity is created in which the counterweight 5 is guided vertically movable in the guide rails 4 by means of the sliding blocks 9.

Next is out Fig. 4 It can be seen that the carriage 3 is connected to the frame 1 via a flexible intermediate element 14, for example a rubber element. A on one leg of, preferably also made of an extruded aluminum profile, mounted carriage 3 pin 15 protrudes through a slot in another cavity in the guide profile 2. The pin 15 is used to attach the rope 7 or a belt.

Fig. 5 shows a sectional view through the guide profile 2 in the region of the guide roller 6. The guide roller 6 is rotatably mounted about a journal 16. Reference numeral 17 designates a bearing plate which forms an upper stop for the carriage 3 guided in the guide profile 2 by means of rollers 18. How out Fig. 5 it can be seen, the rollers 18 are mounted in pairs in opposing arrangement on the carriage 3 and positively guided in the guide profile 2. The rollers 18 may for example be made of a flexible plastic or. Hard rubber be made.

The Fig. 6 to 10 show again in detail each preferably made of extruded aluminum or plastic profiles slide 3, frame 1, first cover 12, guide profile 2 and second cover 13. With 19 two opposite grooves in the guide profile 2 are designated, in which the wheels 18 positively are guided.

The FIGS. 11 and 12 show detail views of an upper portion of the guide profiles 2. From this particular again the shape and the arrangement of the bearing plate 17 can be seen.

The FIGS. 13 and 14 show detailed views of the counterweight 5. As in particular from Fig. 14 it can be seen, the counterweight is composed of a plurality of plates 19a to 19d, which have a different width, so that there is a wide groove in the stacked state.

The FIGS. 15 and 16 The carriage 2 has approximately the same height as the frame 1. In the region of each end of the carriage 2, two wheels 18 are rotatably mounted in mutually opposite arrangement. How out Fig. 15 can be seen, the frame 1 is composed of several sections, which are connected to each other in the corner by means of a steel angle 20. The steel angle 20 is fixedly connected to the frame sections, for example by means of clamping screws.

Fig. 17 shows a sectional view through a plurality of staggered successively arranged devices. In the staggered arrangement shown, it is possible to adjust the covering means 1 vertically so that a building opening, for example a window opening, is completely shaded. In the in Fig. 17 shown embodiment the guide profiles 2 by means of screws 21 attached to a wall of a building.

Fig. 18 shows an embodiment of the invention, in which the counterweight 5, a housing 22 of a drive device is received. Housed in the housing 22 are a gear motor 23 with a friction wheel 24 and a tension spring 25, an electromagnet 26 with an anchor plate 27 and at one of its lateral boundaries an upper support roller 28 and a lower support roller 29, which roll on an inner wall of the guide profile 2. Reference numeral 30 denotes a bearing journal about which the geared motor 23 with the friction wheel 24 provided thereon can be pivoted.

• Fig. 19 zeigt die Antriebsvorrichtung im Ruhezustand, wobei das Reibrad 24 durch die Wirkung der Zugfeder 25 sich in einem von der Innenwand des Führungsprofils 2 entfernten Zustand befindet. Sobald die Antriebsvorrichtung unter Strom gesetzt wird, wird durch die Wirkung des Elektromagneten 26 der Getriebemotor 23 mit dem daran vorgesehenen Reibrad 24 verschwenkt, so dass das Reibrad 24 in einem reibschlüssigen Kontakt mit der Innenwand des Führungsprofils 2 gebracht wird. Dabei wird der Getriebemotor 23, beispielsweise durch einen durch die Schwenkbewegung betätigbaren Schalter (hier nicht gezeigt), in Betrieb gesetzt.
• Fig. 18 zeigt den Betriebszustand. Infolge des reibschlüssigen Kontakts des Reibrads 24 mit dem Führungsprofil 2 wird nunmehr das Gegengewicht 5 im Führungsprofil 2 aufwärts oder abwärts bewegt, wodurch eine Vertikalbewegung des Rahmens 1 mit dem daran angebrachten Abschattungsmittel 11 bewirkt wird.

The function of the device is the following:

• Fig. 19 shows the drive device in the rest state, wherein the friction wheel 24 is located by the action of the tension spring 25 in a remote from the inner wall of the guide profile 2 state. As soon as the drive device is energized, the geared motor 23 with the friction wheel 24 provided thereon is pivoted by the action of the electromagnet 26, so that the friction wheel 24 is brought into frictional contact with the inner wall of the guide profile 2. In this case, the gear motor 23, for example, by an actuatable by the pivoting switch (not shown here), put into operation.
• Fig. 18 shows the operating state. As a result of the frictional contact of the friction wheel 24 with the guide profile 2, the counterweight 5 is now moved upward or downward in the guide profile 2, whereby a vertical movement of the frame 1 is effected with the shading means 11 attached thereto.

The circuit can be interrupted in predetermined end positions by means of a switching element provided there, which can be designed mechanically or inductively.

If the system is de-energized, the gear motor 23 together with the friction wheel 24 is retracted by means of the tension spring 25 in the starting position. In this in Fig. 19 In the state shown, the shading element formed from the frame 1 and the shading means 11 can be moved manually.

The power supply of the geared motor 23 and the electromagnet 26 is advantageously carried out via (not shown here) on the guide profile 2 mounted busbars, which are connected via sliding contacts with the geared motor 23 and the electromagnet 26.

An electrical adjustment of the counterweight 5 can be done by a manually operated switch, by a radio remote control or by means of a programmable logic controller, which control the electric motor 23 and the electromagnet 26 via a control line or by radio. In this case, a displacement width and / or a position of the counterweight 5 relative to the guide profile 2 can be detected by conventional digital displacement sensors and / or position detection means, so that the counterweights 5 or the associated shading elements can be positioned exactly according to a predetermined program.

The proposed arrangement of the drive device within the counterweight 5 is particularly advantageous because it can already be achieved with a low power of the geared motor 23 an adjusting movement. The proposed drive device expediently forms a mounting unit, which is only to be inserted into a counterweight 5 provided appropriate excavation. Of course it is possible to supply the proposed drive device not only via busbars, but also for example via spiral cable with power. The support rollers 28 and 29 allow in the operating state, a two-sided rolling support the drive device and thus a power-saving low-noise adjustment of the counterweight 5. Within the housing 22 of the drive device inductively switchable switching elements can be provided, which provided upon reaching one in the upper and lower regions of the guide profile 2 Magnet 26 automatically sets the drive device de-energized. Of course, mechanical switches can be provided for this purpose.

LIST OF REFERENCE NUMBERS

1

frame

2

guide profile

3

carriage

4

guide rail

5

counterweight

6

idler pulley

7

rope

8th

recess

9

sliding block

10

shading

11

fastening area

12

first cover profile

13

second cover profile

14

flexible intermediate piece

15

spigot

16

journal

17

bearing plate

18

role

19

fillet

19a - 19d

plate

20

steel angle

21

screw

22

casing

23

gearmotor

24

friction wheel

25

mainspring

26

electromagnet

27

anchor plate

28

upper support roller

29

lower support roller

30

pivot

Claims (11)

1. A device for shading a room, comprising:

   two guiding profiles (2) arranged opposite one another in a substantially vertical manner,

   wherein a vertically displaceable carriage (3) is accommodated in each of the guiding profiles (2), and

   wherein a flat shading element (10) is fastened to the carriages (3) that are arranged opposite one another so that, guided by the carriages (3), said flat shading element can be vertically displaced with regard to the guiding profiles (2), and wherein the shading element (10) is fastened in each case to the carriage (3) by means of at least one flexible intermediate element (14) so that during the vertical displacement of the shading element (10), tilting can be avoided even if the shading element (10) is displaced by gripping it near one of the two carriages (3).
2. The device according to claim 1, wherein the flexible intermediate element (14) is made from a rubber element.
3. The device according to any one of the preceding claims, wherein the flexible intermediate element (14) is fastened to the carriage (3) by means of a screw connection.
4. The device according to any one of the preceding claims, wherein the shading element (10) is held in a frame (1).
5. The device according to any one of the preceding claims, wherein the shading element (10) is detachably fitted to the frame (1) by means of a fastening means.
6. The device according to any one of the preceding claims, wherein a latchable first cover profile (12) for covering the fastening means is attached to the frame (1).
7. The device according to any one of the preceding claims, wherein the frame (1) and/or the guiding profile (2) is made from extruded aluminum profiles.
8. The device according to any one of the preceding claims, wherein the shading element (10) is a plate-like container in which a heat accumulator medium is accommodated.
9. The device according to any one of the preceding claims, wherein the heat accumulator medium has a solid-to-liquid phase transition range in the range of from 10 to 25°C.
10. The device according to any one of the preceding claims, wherein as a heat accumulator medium, a salt is selected from the following group: CaCl₂ * 6 H₂O, Na₂CO₃ * 10 H₂O, Na₂HPO₄ * 12 H₂O, Na₂SO₄ * 10 H₂O, Na₂S₂O₃ * 5 H₂O.
11. The device according to any one of the preceding claims, wherein a plurality of shading elements (10) arranged in a staggered arrangement are in each case held vertically movable in two guiding profiles (2).

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