DE202015009543U1 - External venetian blind and curtain slat for it - Google Patents

Abstract

Behanglamelle (1) for one on a number of elevator belts (3) aufzieh- and deductable and on a further number turning tapes (2) between an exposure position with lifted Behanglamellen (1) and a shading position with adjoining Behanglamellen (1) pivotable curtain of a Gebäudeöffnungsverschattungsvorrichtung , in particular a Venetian blind, comprising: a lamellar profile (5) extending between two parallel longitudinal sides with a predetermined contour, whose lower longitudinal side in the shading position is formed by a lower edge flange (9) projecting downwards in the exposure position, comprising a number of engaging sections (13) for a corresponding number of turning tapes (2) to pivot the Behingtlamellen (1) of the drainer drained, and with each one on at least one of the two narrow sides of the fin profile (5) outwardly projecting guide pin (8), which is coaxial on extending in a lamella longitudinal axis of rotation, and with a between an axis of rotation of the one or both guide pins (8) and the lower edge flange (9) extending in the lamella longitudinal direction recess (10) which in the exposure position upper side of the lamellar profile (5) is impressed, wherein the recess (10) receives the lower edge flange (9) of the next upper Behanglamelle (1) in the shading position, and wobe the distance of the recess (10) in the shading position upper longitudinal side of the fin profile (5) less than half as large is the distance to the lower longitudinal side in the shading position, characterized in that the distance of the rotation axis to the shading in the upper longitudinal side of the lamellar profile (5) is smaller than that in the shading position lower longitudinal side, wherein the axis of rotation in the middle between the recess ( 10) and in the shading position upper Ran flaring (9) is located.

Description

The invention relates according to the preamble of claim 1 a Behanglamelle for an external venetian blind and according to the preamble of claim 11 equipped with such Behanglamellen venetian blinds.

An external venetian blind of the generic type has a curtain which can be pulled up and drained off the building opening and which usually has perforated curtain strips which are penetrated by a number of elevator tapes, which in turn engage with a lower curtain strip in order to be able to raise or lower the curtain. Further, for the blinds of the draped Behanglamellen between an exposure position and a shading position on the longitudinal sides of the slats attacking turning tapes are provided.

In order to achieve a better shade of the building opening against incident light and a better opacity, in particular against diagonally downwardly incident views at a Venetian blind of this kind, according to the German utility model DE 296 13 220 U1 It has already been proposed to attach to the lamellar profile of the Behanglamelle as a passage for the elevator belts number perforations, and serving to guide the Behanglamelle in lateral guide rails, projecting from the slats narrow side guide pin with a smaller distance in the slat transverse direction to one of the longitudinal sides of the slat profile on the slat profile as to the other long side.

As a result, the elevator belts can be guided almost completely behind the closed lamellar front by the lamellar profiles. A complete closing of the curtain, ie a smooth resting of the Behanglamellen each other is not reachable with the local arrangement, so that rubber lips are provided on the lower edge flanges of the slats, which should seal the remaining between the Behanglamellen light gaps to avoid still some light between the Behanglamellen the closed lamellar front shines through and that the elevator belts - for burglars - are visible from the outside. But these rubber lips tend to wear out over time. In addition, according to the utility model DE 296 13 220 U1 The elevator belts with the curtain closed, although largely behind the closed lamellar front. However, they remain visible from the outside at their lower end and form at least there a point of attack for burglars despite the rubber lips. When mounting the curtain here also raises the problem of instability of the lamella stack in particular extent, because the elevator belts do not attack on the line of mass center of gravity of the lamella stack on the end bar.

The German patent application DE 25 01 147 A1 shows a similar external blind.

On this basis, the invention is therefore based on the object to provide a Venetian blind and a Behanglamelle that allow improved stability of the lamella stack when mounting and draining the curtain and a further improved darkening of shaded by the Venetian blinds building opening and at a Venetian blinds of the generic Art to avoid or at least reduce light gaps between adjacent Behanglamellen and improve the burglary protection.

This object is achieved with respect to the Behanglamelle with the features of claim 1, with respect to the outer blind with the features of claim 11.

The invention is based on a Venetian blind with Behanglamellen, each one between two parallel longitudinal sides with a predetermined contour extending fin profile and on the two narrow sides of the fin profile in each case an outwardly projecting guide pin, with which they can be performed in an associated guide rail. In this case, at least the lower longitudinal side of the lamellar profile in the shading position is formed by a lower edge flange projecting downwards in the exposure position, which edge flange has a number of engagement sections for a corresponding number of turning tapes in order to pivot the curtain strips of the draped curtain. The two guide pins of the Behanglamellen extend coaxially on a running in the longitudinal direction lamella axis of rotation.

According to the invention, a recess extending between the axis of rotation of the guide bolts and the lower edge flange in the longitudinal direction of the slats is impressed into the upper side of the slat profile in the exposure position, which receives the lower edge flange of the next upper curtain slat in the shading position. The distance between the recess to the upper longitudinal side of the slat profile in the shading position is less than half as large as the distance to the lower longitudinal side in the shading position.

According to a first aspect of the invention, moreover, the distance between the axis of rotation and the upper longitudinal side of the respective lamellar profile in the shading position is smaller than for the lower longitudinal side in the shading position. The rotation axis This is exactly or at least approximately in the middle between the depression and in the shading position upper edge beading.

As a result, the lift belts acting on the end bar and the perforations provided in the curtain slats for passing the lift belts can be located behind the closed lamella front, i. on the side of the building towards the inside of the cover of the building opening formed by the slats located in the shading position. It would even be conceivable to pass the elevator belts on the side facing the building interior on the Behanglamellen. According to a second, alternative or supplementary aspect of the invention, therefore, the lift belts acting on the end bar are guided past the curtain slats or on the curtain slats so that they are behind the closed slat front with the curtain closed, i. on the side of the building towards the inside of the cover of the building opening formed by the slats located in the shading position. As a result, the gaps occurring in the closed curtain between the Behanglamellen can be at least reduced because the elevator belts no longer need to be passed between the Behanglamellen.

Frequently, however, due to manufacturing tolerances or weathering over time, the Behanglamellen in the shading position not quite come to rest on each other, even if the elevator belts no longer need to be passed through the gaps between the closed Behanglamellen.

In particular, for such cases, the invention provides for a Venetian blind with eccentric bolted lamellae or eccentric elevator belt guide described above, a further improvement in the sealing of the gap between the shading position located in the Behanglamellen against low light and especially against diagonally from below incident views. Because even if a certain gap between two Behanglamellen remains obstructing the lower edge curl of the next upper slat the view coming from diagonally below the view into the building interior, because it is included in the recess of the next lower Behanglamelle and thus behind a formed by the edge of the recess a visible forms the gap in the area of the recess concealing parapet. This results in an improved burglary protection, because the guided behind the slat front of the closed curtain elevator belts from the outside are no longer visible and thus difficult to cut. This applies in particular if, when the curtain is closed, that is, when the blades are in the shading position, the elevator belts are completely, i. also in the area of the lower end bar behind the closed lamellar front.

Also, for the light incident directly on the column on the blind, such as a low sun or e.g. a street lamp at a arranged on a building opening in an upper floor Venetian blinds recorded in the recess edge bordering the passage, thus forming a kind of light trap, which prevents at least the collapse of direct light, and there only penetrate diffused light.

Furthermore, the recess forms a centering, which forces the next upper lamella on the desired position in the lamella stack when mounting the curtain, at least when the lamellar profiles are made as usual today from a metal strip, wherein the embossed into the top of Behanglamelle depression simultaneously to a corresponding protrusion leads to the bottom of the slat, with which the Behanglamelle centered when pulling the blind itself in the recess of the next lower slat.

Normally, the lamellae each have a guide pin on its two narrow sides. In the context of the invention, however, embodiments would also be conceivable in which the Behanglamellen have only on a narrow side a guide pin, wherein they could be performed on their other narrow side, for example via a cable guide. The lower end bar is advantageous heavier than one of the Behanglamellen.

Advantageous developments of the invention are the subject of the dependent claims.

Thus, the distance between the depression and the lower edge curl bridging part of Behanglamelle the usable for shading the building opening part of Behanglamelle, whereas the distance between the recess and the upper longitudinal side of the Behanglamelle bridging part of Behanglamelle with closed curtain behind the closed lamellar front and therefore contributes to the formation of the lamellar front nothing. In addition, the curtains may be located closer to the interior of the building, the less far the blinds project with their in the shading position, the distance between the recess and the upper longitudinal side of the Behanglamelle bridging part inside, which faces the interior of the building in the exposure position. The closer the curtain is arranged to the inside of the building, the smaller the distance to the window or the like, the more stable the windbreak will be.

Advantageously, the slat profile of the Behanglamellen therefore has two each on one side of the depression adjoining profile leg, of which the recess with the lower edge in the shading position connecting profile leg is longer than the upper recess in the shading position, preferably also by a Edge flanging formed longitudinal side connecting profile leg to which the guide pins attached, preferably riveted.

The upper profile limb in the shading position can be shorter the closer the guide bolts are fastened to the upper longitudinal side of the respective lamella profile on the upper profile limb. Advantageously, the distance between the axis of rotation of the guide pin to the upper longitudinal side of the lamellar profile in the shading position is therefore less than half as large as the distance to the lower longitudinal side in the shading position. If the distance of the axis of rotation of the guide pins to the upper longitudinal side of the lamellar profile in the shading position is, for example, less than one fifth or even less than one seventh as great as the distance to the lower longitudinal side in the shading position, then the spacing of the recess can be in the shading position the upper longitudinal side of the fin profile then be less than half the distance to the lower longitudinal side in the shading position, for example, less than one third as large. It is therefore particularly preferred if the two guide pins are fastened adjacent to or directly on the adjacent edge flange.

It is furthermore advantageous if the lamellar profile in each case has a concave contour overall in relation to the lower side in the exposure position. As a result, the shorter profile limb located behind the closed lamellar front can protrude further away from the depression and thus the lamellar front inwardly toward the building opening than with generally flat lamellar profiles, so that the curtain lamellae are less wide overall and thus less expensive.

A particularly pleasing appearance of the curtain in the shading position is obtained when the two profile legs each extend in a straight line or almost straight from the depression or depression to the associated longitudinal side of the slat and are at an obtuse angle to each other on the lower side in the exposure position of the respective slat profile , In particular, the longer profile leg can also be slightly curved for production reasons, but still be almost straight. Slightly curved means that the radius of curvature with respect to the slat width is large, for example 500 mm.

The longer profile legs can then be placed in the closed lamella front, i. in the shading position of the curtain have a vertical or nearly vertical course. In this case, the recess of the Behanglamellen has such a depth that come in lying in the shading position of the recess, lower edge flanging the next upper lamella of the straight, long profile legs of the Behanglamelle and the straight, long profile legs of the next upper lamella in the same vertical plane to lie , so form the long profile legs of Behanglamellen in the shading position a vertical plane. This results in the shading position thus a relatively smooth, homogeneous outer surface that extends over the entire curtain, which is often desired from an architect's point of view. However, it would also be conceivable to make the long profile legs wave-shaped, so that the appearance of a closed wavefront results from the outside, due to the depression or recess which compensates for the projection of the lower edge curling.

Further advantageous not only has the lamellar profile two V-shaped opening at an obtuse angle leg, but also the recess of two V-shaped opening legs is formed, however, open in the exposure position upwards. This results in the lower edge flanging of the next upper Behanglamelle an investment in the recess of Behanglamelle in the form of one or two lines, so that the closing of the curtain is relatively noiseless. In addition, this results in a good self-centering of the Behanglamellen when mounting the curtain on the next lower Behanglamelle and thus stabilize the slat stack against tipping.

This stabilization of the lamella stack against tipping can be further improved by the fact that the lower end strip of the curtain consists of a Behanglamelle that corresponds to the other Behanglamellen, but still hanging on a weight. The lamella stack centered then when contraction of the curtain on the lamellar profile of the lower end bar and in particular in the recess of the lamellar profile of the lower end bar. Since the weighting of the lower end bar counteracts a complete pivoting of the end bar, which can lead to an enlarged gap between the Endleistenlamellenprofil and the next upper Behanglamelle, the invention provided in the lamellar profiles depression their advantages as a visual and light protection here particularly play.

To prevent that at the upper in the shading position and in the exposure position inner longitudinal edge of the lamellar profiles Pressing turning tapes against the stack of lamellae is ensured by advantageous measures that these turning tapes with open hang, so in the exposure position without a transverse force on the slats extend in a vertical plane down. Since the turning tapes are conventionally connected to reversing cord strands of reversing gear, this can be done by reversing the turning cord connected to the turning on the upper side slats deflections are deflected via deflections in a vertical plane, in which the engaging on the upper longitudinal side slats turning tapes in the exposure position come lie. Alternatively, it can be ensured that the turning cord strings connected to the turning strips acting on the upper longitudinal side of the lamella already come out of the reversing gears in this vertical plane, for example by means of internal gear deflections or by a corresponding arrangement of the reversing gear with an offset relative to the axis of rotation of the guide bolts towards the building interior Rotary axis of the winding shaft.

The stabilization of the lamella stack against tilting can be further improved if the lower end bar is guided in at least one of the two guide rails swiveling, since then the lower end bar on which the stack builds up, can not tip over. Unschwenkbar in this context means only pivotable to a degree, which is due to manufacturing tolerances, the basic functions of securing the end bar against pivoting but guaranteed, so not necessarily absolutely absolutely swiveling.

For this purpose, the guided in this guide rail guide body of the end bar having a Führungsnutrichtung longitudinally extending guide head, which is accommodated in the guide groove and prevents pivoting of the end bar by its longitudinal extent. In this context, longitudinal extension means that the guide head is wider in the direction of the guide groove than the curtain in the normal direction, preferably more than twice as long. Alternatively, the guided in this guide rail guide body of the end bar also have two recorded in the associated guide groove, in Führungsnutrichtung widely spaced guide heads, which has the same effect. Of course, advantageously on both sides of the hanging same guide body attached to the end bar, which, as described above, are formed.

Since the end strip should be secured by its guide heads in the two associated guide against pivoting, but also against a wind offset in the transverse direction to the curtain, it is advantageous if the recorded in the associated guide grooves guide heads of the two attached to the end bar guide body with relatively small Distance from the side edges of the two guide grooves are arranged. Preferably, the guide heads are even on the side edges of the associated guide grooves, of course, a small game can be provided.

The resulting friction and noise caused thereby can be effectively reduced when the guide body of the end bar each have the two recorded in the associated guide groove, spaced in Führungsnutrichtung guide heads and these guide heads are each formed as rotatably received on the guide body rollers in the Unroll assigned guide groove.

It is also advantageous in terms of a further improved stabilization of the position of the end bar, when the guide bodies of the end bar associated guide grooves each have one of the end bar facing, undercut opening, which is penetrated by the respective guide body, wherein the guide body thereby have overhanging guide heads which prevent withdrawal from the associated, undercut guide groove.

In order to thread the problem occurring during assembly or disassembly of the curtain, the guide heads of the end bar in the associated guide grooves, and to be able to remove it again, to give a mounting-friendly solution, it is also advantageous if the guide rails each have a building-fixed carrier profile and a detachable fastened thereto Führungsnutprofil having the serving for guiding the end bar guide groove. During assembly or disassembly of the blind, the guide groove profile can then simply be removed from the carrier profile in order to thread the end strip with its guide bodies into the guide grooves of the two guide groove profiles or to remove them therefrom.

Even to make the curtain not unnecessarily difficult, the Behanglamellen no such elaborately designed guide body, but only simple, attached to the transverse sides of the lamella profiles guide pin with or without an overhanging guide head. The thus-designed guide body Behanglamellen can also be performed with much more play in the two associated guide, which according to the task to guide the Behanglamellen from a suitably favorable material such as plastic, and / or could be manufactured with high manufacturing tolerances.

According to an advantageous embodiment of the invention, the guide rails therefore each have a guide groove for the end bar on the one hand and in the direction transverse to the curtain next to another guide for the guided Behanglamellen on the other hand, so that the end bar on the one hand and the guided Behanglamellen are guided on the other hand each in their own guide , The guide groove for the Behanglamellen can be formed for example by a realized as a clip insert plastic profile, wherein the clip insert into an associated opening on the guide rail profile, i. can advantageously be clipped on the carrier profile of the respective guide rail. However, it would also be conceivable to provide both guide grooves on the removable Führungsnutprofil or only one edge of the opening for the clip profile, whereas the other edge may be formed to the carrier profile.

In terms of a further improved shadowing or light-tightness of the Venetian blind, the two arranged on both sides of the blind guide rails according to the invention each have an advantageous L-shaped cross-sectional shape and stand with a on the inside of the building facing side of the Behanglamellen L-legs in lamella longitudinal direction inside over the transverse sides of the Behanglamellen or the lamellar profiles over. This results in a light trap for the light passing through the side of the curtain, which prevents the collapse of direct sunlight, and only allows a little diffused light to penetrate there. It would be within the scope of the invention, of course, other cross-sectional shapes for the guide rails conceivable, for example, the curtain facing, open U, as long as the leg on the building inside over the Behanglamellen. Likewise, it would be conceivable to stay with the L-shape of the guide rail cross-sections, but to provide the outside of the curtain over the legs of the guide rail profiles projecting beyond the ends of the curtain slat. However, if the projecting leg of the guide rail is located on the side of the curtain facing the building interior, this results in an architectically desirable, improved visual appearance of the facade of the building.

It would be conceivable to suspend the end bar in the region of their guide body on the elevator belts, so that they extend next to the Behanglamelle and must not penetrate the Behanglamellen. It would also be conceivable to pass the elevator belts on the side facing the building interior to the Behanglamellen.

However, a better stabilization of the curtain against wind loads is achieved when the Behanglamellen have perforations through which the elevator belts are passed. An even better stabilization against wind loads is achieved when the lamellar profiles are penetrated by a further number of supplementary perforations, wherein the Behanglamellen are penetrated at their Ergänzungslochungen tensioned wind protection bands, which are preferably designed as a steel cable.

It is of course advantageous if the perforations and / or supplementary perforations are located on the axis of rotation of the guide body of the Behanglamellen. That that the lamellar profiles are advantageously penetrated in each case by a number of perforations serving as a passage for the number of elevator belts, wherein the number of elevator belts passes through the Behanglamellen at their perforations and wherein the perforations each Behanglamelle on an imaginary, extending in lamella longitudinal direction through the bolt portions of the two guide body line are arranged.

Due to the fact that the two guide bolts of each Behanglamelle are attached to the lamellar profile of Behanglamelle with a shorter distance to the building interior facing longitudinal edges of the lamella, is also achieved that not only the Behanglamellen penetrating elevator belts are not visible from the outside when the curtain is closed, but also not the holes, which therefore can not come up with a fall.

The elevator belts are conventionally up or unwound on or from a reel of a reversing gear by the winding shaft mounted in the reversing gear is rotated. Is the axis of rotation of the winding shaft, which simultaneously defines a vertical plane in which the elevator belts leave the reversing gear, not congruent in the desired vertical plane in which the elevator belts are to be passed by the Behanglamellen or past them, so are at the Reversibly recorded elevator belts deflected advantageous over deflections in this vertical plane. Another possibility would be to provide the reversing gearbox with corresponding deflections or to fix it on the building side with the winding shaft axis lying in the desired vertical plane.

Advantageous for the rigidity of the Behanglamellen is when the lamellar profiles have edge flanging on both its longitudinal sides. Because at the edge curls the turning tapes can be fixed in a relatively simple manner, about about in the edge beading shot turning tape holder or brackets, to each of which a Klippselement is attached to which the associated turning tape can be clipped with attached to the turning tape Gegenklippselementen. The clip elements protrude in the exposure position approximately horizontally outward. Advantageously, the recess of each Behanglamelle therefore has a width such that when in the shading position of the recess resting, lower edge flanging the next upper lamella attached to the lower edge flanging the next upper lamella Klipselemente not touch the respective lamellar profile.

In the following an advantageous embodiment of the invention is explained in more detail, which is illustrated in the accompanying drawings.

• 1 in perspektivischer Teilansicht eine Führungsschiene mit einem abgelassenen Behang mit aufjalousierten Lamellen eines Raffstores gemäß einer vorteilhaften Ausführungsform der Erfindung;
• 2 Einzelheit II in 1;
• 3 eine horizontale Teilschnittansicht durch eine Führungsschiene des in 1 gezeigten Raffstores mit Blickrichtung nach unten;
• 3a eine der 3 entsprechende Ansicht einer weiteren Ausführungsform eines erfindungsgemäßen Raffstores;
• 4 eine perspektivische Teilansicht einer Endleiste des in 1 gezeigten Raffstores;
• 5 eine Seitenansicht eines Ausschnitts des Behangs des in 1 gezeigten Raffstores in Verschattungsstellung;
• 6 eine der 5 entsprechende Ansicht bei in Belichtungsstellung befindlichem Behang;
• 7 eine perspektivische Teilansicht einer Führungsschiene mit teilweise abgelassenem Behang des in 1 gezeigten Raffstores;
• 8 und 9 den 5 und 6 entsprechende Ansichten eines Behangs gemäß einer alternativen Ausführungsform der Erfindung, bei dem als Windsicherung zusätzliche Stahlseile gespannt sind;
• 10 eine schematische Vertikalschnittansicht durch den Behang und die Aufhängung desselben an der Wickelwelle Entlang Linie X in 1, welche durch ein Aufzugsband des Raffstores verläuft;
• 11 eine vertikale Schnittansicht entlang Linie XI in 1, welche durch ein Wendeband verläuft; und
• 12 eine der 11 entsprechende Schnittansicht bei geschlossenem Behang.

Show it:

• 1 in a perspective partial view of a guide rail with a draped curtain with floated slats of a Venetian blind according to an advantageous embodiment of the invention;
• 2 Detail II in 1 ;
• 3 a horizontal partial sectional view through a guide rail of in 1 Venetian blinds facing downward;
• 3a one of the 3 corresponding view of another embodiment of a Venetian blind according to the invention;
• 4 a partial perspective view of an end bar of the 1 external blinds shown;
• 5 a side view of a section of the blind of the in 1 external blinds in shading position;
• 6 one of the 5 corresponding view in Behichtstellung in exposure position;
• 7 a partial perspective view of a guide rail with partially draped curtain of in 1 external blinds shown;
• 8th and 9 the 5 and 6 corresponding views of a curtain according to an alternative embodiment of the invention, in which are stretched as wind protection additional steel cables;
• 10 a schematic vertical sectional view through the curtain and the suspension of the same on the winding shaft along line X in 1 which passes through an elevator band of the Venetian blind;
• 11 a vertical sectional view taken along line XI in 1 which passes through a turning band; and
• 12 one of the 11 corresponding sectional view with closed curtain.

First, reference is made to the 1 which shows a Venetian blind curtain made of curtain leaves 1 and a bottom end bar 4 exists and on its two sides each in a guide rail 6 is led, whereby the 1 only one of these two guide rails 6 can be seen. How the particular 2 It should be noted that detail II 1 in an enlarged view shows are elevator belts 3 with the bottom end bar 4 connected via the end bar 4 can be raised and lowered, which thereby the Behanglamellen 1 takes along, as well as from the 7 showing the hangings in partially freaky position, being on the end bar 5 Behanglamellen 1 rest, and the top two Behanglamellen 1 are in shading position.

How to continue from the synopsis of 1 and 2 recognizes are on the side edges of the Behanglamellen 1 turning bands 2 attached to the hangers 1 between the in 1 shown exposure position of the blind and the in 7 to pivot shown shading position. It goes out in particular from 2 apparent that the turning tapes 2 not on the bottom end bar 4 are attached, but only on the Behanglamellen 1 ,

Because in the embodiment shown, the lower end bar is jalousing 4 not, but should also remain when closing the curtain in its horizontal position. For this purpose, the lower end strip on each of its two narrow sides in each case a particularly clear the 4 to be taken leadership body 7 on. The guide body 7 It has an L-shaped body, one leg with a rectangular cross section in a corresponding, rectangular chamber of the end bar 4 is inserted and the other leg extends in Führungsnutrichtung, ie in the example shown in the vertical direction and two trained as rollers guide heads 17 wearing. The two leaders 17 are spaced apart in Führungsnutrichtung in this way.

As 3 shows are the two leaders 17 with a relatively small game in one of the lower end bar 4 associated guide groove 15 the side guide rail 6 guided and can due to their rotatable mounting on the main body of the guide body 7 on the two flanks of the guide groove 15 roll. This will at the same time be an undesirable offset of the end bar 4 in Transverse to the curtain, such as wind loads or the like, and also an undesirable pivoting of the end bar 4 effectively prevented. This is particularly advantageous because the elevator belts 3 not at the weighted centerline of the bottom end bar 4 and the entire contracted disk pack at the bottom end rail 4 attack, but offset to the inside of the building. Through the more pivotable guidance of the end bar 4 in the guide rail 6 Nevertheless, a tilting of the lamella stack during the raising (lifting) / discharging is effectively prevented.

Again 3 can also be seen, are the at the end bar 4 fixed guide body 7 and on the curtain slats 1 fixed guide body 8th in separate guide grooves 15 . 16 led, whereby the the guide bodies 8th the blinds 1 associated guide groove 16 laterally on the inside facing the building next to the one on the end bar 4 fixed guide body 7 associated guide groove 15 is arranged.

The guide rail 6 is in this case of a cross-sectionally approximately L-shaped carrier body 18 and a bolted thereto, the guide groove associated with the Endleistenführungskörpern 15 forming Führungsnutprofil 20 educated. The guide groove profile 20 Can be used for threading the roller-shaped guide heads 17 in the guide groove 15 be removed. The guide rail 6 further comprises a curtain facing the blind, into which a guide groove 16 for the Behanglamellenführungskörper 8th forming plastic inlet 9 is clipped.

On the inside of the building facing side of the guide rail 6 sticking out a thigh 14 of the L-shaped carrier profile 18 towards the other guide rail 6 towards, ie in lamella longitudinal direction inwards to allow a better darkening at the side edges of the curtain by allowing a direct light incidence through gap between the guide rail 6 and the guide rail 6 facing side of the curtain is prevented. Because the pivot axis of the Behanglamellen 1 when shuttering as below with reference to the 5 and 6 explained, to the protruding leg 14 has been laid, is also the remaining passage gap for diffused light between the inside of the building facing side of the curtain and the leg 14 the guide rail 6 narrows so that the incident on the sides of the closed curtain amount of light is further reduced.

In the 3 are the turning and elevator belts omitted. However, one recognizes a perforation or passage opening 11 for one of the elevator belts 3 , which are close to the inner longitudinal edge of Behanglamelle 1 on the pivot axis of the Behanglamelle 1 attached guide body 8th located. At the longitudinal edges of the Behanglamellen 1 that like that 5 and 6 show as edge curls 9 are executed, there are clip elements 13 in the edge curls 9 Shot in which Gegenklippselemente 12 are clipped, in turn, on the turning tapes 2 are attached.

The 5 and 6 show the Behanglamellen 1 the blind in shading position on the one hand and in exposure position on the other. The curtain slats each have a slat profile 5 with a short thigh 5b and a long leg or longer leg relative to the short leg 5a on which are at an obtuse angle to each other and a depression or trough 10 from both sides. This opens the depression 10 in the exposure position ( 6 ) upwards, whereas the lamellar profile 5 is concave downwards in the exposure position. The short thigh 5b is located on the inside of the building facing side of the curtain and on the one hand carries the perforations 11 and on the other hand, the guide body 8th , in a directly to the local edge beading 9 adjoining area.

Be the Behanglamellen 1 from the in 6 shown exposure points in the in 5 shown shading position by pressing the turning tapes 2 pivoted so can the entire length of the long leg 5a plus those of the hollow 10 used to shadow the building opening, whereas the short profile leg 5b the passages 11 for the lift belts 3 and the guide bodies 8th carries and together with the elevator belts 3 is covered by the closed curtain when it is closed from the outside. It is through the depression 10 and in it in the shading position ( 5 ) recorded, lower edge beading 9 the next upper curtain 1 even then prevents the passage of direct light and created a privacy especially against diagonally below views when the Behanglamellen 1 not completely close, so even in the shading position a small gap between individual Behanglamellen 1 remains. Because of the obliquely below seen behind the visible edge at the transition from the long profile leg to the depression located, lower edge flange 9 the next upper curtain 1 stands thereby an incidence of light or view from diagonally down in the way.

Thus, when looking from the outside on the closed external blind not only the picture of a visually appealing, smooth front, but it is also achieved that the perforations 11 through which Light could fall into the building interior, are covered, so that already results in an improved shading. This effect is further enhanced by the fact that the slats 1 can lie directly against each other without the elevator belts would have to be passed between the slats, which automatically leads to a - albeit small - gap.

Again 10 can be seen, the curtain can by means of common reversing gear 30 on the winding shaft 29 be hung up. The reversing gears 30 are in a cross-section in approximately U-shaped header 31 used and each have a reel 35 on top of which the respective elevator band 3 is wound up and unwound, and with which the respective reverse gear 29 on the here executed with square cross-section winding shaft 29 is deferred. On the header is an adapter 32 clipped, which is a deflection in the form of two pulleys 33 carries to the elevator band 3 in the plane of the perforations 11 to steer.

How to do that 11 and 12 removes, carries the adapter 32 also two pulleys 34 around the turning band on the side facing the building 2 to steer in the desired vertical plane. The two turning tapes 2 of the reversing gear shown 30 are each about a Wendekordelstrang 2a . 2 B on a turning body 36 Tailored, via a slip clutch with the reel 35 can be uncoupled or decoupled from it, to the Behanglamellen 1 to pivot after reaching the deflated position of the blind.

Advantageous modifications and modifications of the embodiments shown are possible without departing from the scope of the invention.

So could now, like the 8th and 9 show, additional relatively thick, but wind-stable steel cables are stretched as a windbreaker, since the necessary passages are with closed curtain behind the closed lamellar front and therefore no light pass.

However, it would also be conceivable to guide the elevator belts next to the curtain, that is not through the Behanglamelle through, which then would not have to be correspondingly perforated, unless for the Stahlseilwindsicherung.

QUOTES INCLUDE IN THE DESCRIPTION

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Cited patent literature

• DE 29613220 U1 [0003, 0004]
• DE 2501147 A1 [0005]

Claims (15)

Behanglamelle (1) for one on a number of elevator belts (3) aufzieh- and deductable and on a further number turning tapes (2) between an exposure position with lifted Behanglamellen (1) and a shading position with adjoining Behanglamellen (1) pivotable curtain of a Gebäudeöffnungsverschattungsvorrichtung , in particular a Venetian blind, comprising: a lamellar profile (5) extending between two parallel longitudinal sides with a predetermined contour, the lower side of which in the shading position is formed by a lower edge flange (9) projecting downwards in the exposure position, comprising a number of engaging sections (13) for a corresponding number of turning tapes (2) to pivot the Behanglamellen (1) of the drapes drained, and with one on at least one of the two narrow sides of the slat profile (5) outwardly projecting guide pin (8), which coaxial a extends in an extending in the lamella longitudinal axis of rotation, and with an extending between an axis of rotation of the one or both guide pins (8) and the lower edge flange (9) in the longitudinal direction lamella depression (10) in the exposure position in the upper side of the lamella profile ( 5) is impressed, wherein the recess (10) receives the lower edge flange (9) of the next upper Behanglamelle (1) in the shading position, and wherein the distance of the recess (10) in the shading position upper longitudinal side of the fin profile (5) less than is half as large as the distance to the lower in the shading position longitudinal side, characterized in that the distance of the axis of rotation to the upper in the shading position longitudinal side of the fin profile (5) is smaller than the lower in the shading position longitudinal side, wherein the axis of rotation in the middle between the recess (10) and in the shading position obe ren edge flange (9) is located. Behanglamelle (1) after Claim 1 , characterized in that the lamellar profile (5) has two on each side of the recess (10) adjoining profile leg (5a, 5b), of which the recess (10) with the lower side in the shading position edge flange (9) connecting profile legs (5a) is longer than the recess (10) with the upper in the shading position, preferably also by a marginal flange (9) longitudinal side connecting profile leg (5b) on which the guide pins (8) on the slat profile (5) are attached , Behanglamelle (1) after Claim 2 , characterized in that the lamellar profile (5) has a total concave contour towards the lower side in the exposure position. Behanglamelle (1) after one of Claims 1 to 3 , characterized in that the two profile limbs (5a, 5b) extend in a straight line or nearly straight from the depression (10) to the associated lamellar longitudinal side and are at an obtuse angle to one another on the lower side of the lamellar profile (5) in the exposure position. Behanglamelle (1) according to any one of the preceding claims, characterized in that the recess (10) of two V-shaped at an obtuse angle in the exposure position upwardly opening legs is formed. Behanglamelle (1) according to any one of the preceding claims, characterized in that the lamellar profile (5) on the axis of rotation of the guide pin (8) is penetrated by a passage for the number of elevator belts (3) serving number of perforations (6). Behanglamelle (1) according to any one of the preceding claims, characterized in that the distance of the axis of rotation to the upper longitudinal side of the lamellar profile (5) in the shading position is less than half the distance to the lower longitudinal side in the shading position, for example less than one fifth as large or even less than a seventh, and particularly preferably adjacent to the adjacent edge flange (9) is arranged. Behanglamelle (1) according to any one of the preceding claims, characterized in that the distance of the recess (10) in the shading position upper longitudinal side of the slat profile (5) is less than one third as large as the distance to the lower in the shading position longitudinal side. Behanglamelle (1) according to any one of the preceding claims, characterized in that the recess (10) has a depth such that when in the shading position of the recess (10) resting, lower edge flange (9) of the next upper fin (1) of the rectilinear or nearly straight, long profile limbs (5a) of the Behanglamelle (1) and the straight or nearly straight, long profile limb (5a) of the next upper lamella (1) come to lie in the same vertical plane. Behanglamelle (1) after Claim 9 , characterized in that at least the engagement portions (13) on the lower edge flanging (9) each have a clip element (13), which is preferably fastened to the lamellar profile (5) with a clip inserted in the edge flanging (9), which clip element (Fig. 13) attached to one of the turning tapes (2) counter-clip element (12) is assigned, wherein the recess (10) has a width such that in the shading position on the recess (10) resting, the lower edge flange (9) of the next upper fin (1) at the lower edge flanging (9) of Next lamella (1) mounted in the exposure position in approximately horizontally outwardly projecting Klipselemente (13) the lamellar profile (5) do not touch. Venetian blind with a hanging on a number of elevator tapes (3) and draperable curtain of Behanglamellen (1) and a lower end strip (4) to which the number elevator belts (3) attacks, with a further number at least one of the two longitudinal sides of the Behanglamellen (1) attacking turning tapes (2), via which the Behanglamellen (1) at least when drained curtain between an exposure position with lifted Behanglamellen (1) and a shading position with adjoining Behanglamellen (1) are pivotable, and with a guide rail (6) on one or on each of the two sides of the curtain, in which the Behanglamellen (1) and preferably the end bar (4) are guided, wherein the Behanglamellen each extending between two parallel longitudinal sides with a predetermined contour lamellar profile (5) and at least one or both narrow sides of the lamellar profile (5) each have an outwardly projecting guide bolt and at least the lower longitudinal sides of the lamellar profiles (5) in the shading position are each formed by a lower edge flange (9) projecting downwards in the exposure position, which has a number of engagement sections (13) for a corresponding number of turning tapes (2), and wherein the Behanglamellen (1) each have a between the axis of rotation of the guide pin (8) and the lower edge flange (9) extending in lamella longitudinal direction recess (10) in the exposure position in the upper side of their lamella ( 5) is impressed, which receives the lower edge flange (9) of the next upper Behanglamelle (1) in the shading position, characterized in that the at the end bar (4) attacking elevator belts (3) so by the Behanglamellen (1) or on the Behanglamellen that they are completely behind the closed lamellar front when the curtain is closed , wherein the Behanglamellen (1) are each formed according to one of the preceding claims. External blinds after Claim 11 , characterized in that in the shading position upper longitudinal sides of the lamellar profiles (5) are each located on the inside of the building facing side of the building and the turning tapes (2) are connected to reversing cord strands of reversing gears (30), either with the on upper reversing tapes (2) connected reversing cord strands over deflections (34) in a vertical plane of the turning on the upper side slats turning bands (2) are deflected in the exposure position, or associated with the acting on the upper side slats turning bands already in this vertical Level come from the reversing gear. External blinds after Claim 11 or 12 , characterized in that the lamellar profiles (5) are each penetrated by a number of perforations (11) serving as a passage for the number of elevator belts (3), the number of elevator belts (3) passing through the curtain lamellas (1) at their perforations (11) , External venetian blind after one of the Claims 11 to 13 , characterized in that the lamellar profiles are penetrated by a further number supplemental perforations, wherein the Behanglamellen are penetrated at their Ergänzungslochungen of tensioned wind protection bands, which are preferably designed as a steel cable. External venetian blind after one of the Claims 11 to 14 , characterized in that on reels of reversing gears (30) recorded elevator belts (3) either deflected by deflections (33) are deflected in a vertical plane in which the perforations are in the exposure position and in the shading position, or already in this vertical Level come from the reversing gear.

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