EP2592213B1 - Turnover belt for a lamellar blind and lamellar blind with such a turnover belt - Google Patents

Turnover belt for a lamellar blind and lamellar blind with such a turnover belt Download PDF

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Publication number
EP2592213B1
EP2592213B1 EP12005477.0A EP12005477A EP2592213B1 EP 2592213 B1 EP2592213 B1 EP 2592213B1 EP 12005477 A EP12005477 A EP 12005477A EP 2592213 B1 EP2592213 B1 EP 2592213B1
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EP
European Patent Office
Prior art keywords
carrier strip
slats
tendons
turnover
turning
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EP12005477.0A
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German (de)
French (fr)
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EP2592213A3 (en
EP2592213A2 (en
Inventor
Winfried Maier
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ROMA KG
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ROMA KG
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/38—Other details
    • E06B9/384—Details of interconnection or interaction of tapes and lamellae
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape

Definitions

  • the invention relates to a Venetian blind with a curtain consisting of slats, wherein the slats are connected to each other by engaging on their longitudinal sides turning tapes.
  • the invention also relates to such a turning belt, which has a carrier tape to which Klipsbefest Trentieri are fixed at regular intervals, which have on one broad side of the carrier tape a transversely fixed to the carrier tape locking groove for a lamella-side clip pin.
  • connection between lamella and turning belt has two movable axes each, one axis for turning the lamellae when the curtain has moved down and one axis for looping the turning belt when the curtain is being raised.
  • the reversible belt runs along the gathered lamella stack.
  • connection between the blade and turning belt has only one serving for turning the slats axis, which is parallel to the lamella longitudinal axis.
  • the turning band then forms no loops that extend along the longitudinal edges of the slats, but loops that extend transversely to the slat axis.
  • This is shown in the US patent US 2,130,319 a Venetian blind with slats and turning tapes, wherein the turning tapes have textile loops, in the U-shaped hook elements with a Hinge axle section are run in before the U-legs are inserted into holes of the edge flange of the lamella.
  • the turning tapes accordingly have only one axis of rotation about the hinge axis section.
  • the turning tape should always fold between the slats to ensure a visually appealing pile formation and to keep the space required in slat transverse direction small.
  • the loops are then no longer visible in the gathered lamella stack or package and also protected from environmental influences such as UV light and dirt.
  • German patent DE 947 020 B1 shows, for example, a Venetian blind, in which instead of turning tapes relatively stiff individual segments are provided, which are each connected to a hinge in the middle between two lamellae, so that the convolution is ensured to the inside.
  • the material and manufacturing costs for the Wendesegemente is high and equipped with such Wendesegemente external venetian blinds are not visually appealing.
  • the European patent application EP 2 006 482 A2 shows a generic Venetian blind, in which the welded on the turning tape clips uniaxially clipped onto U-shaped brackets, which are injected with their U-legs in the edge flanges of the slats.
  • the turning band is welded obliquely to the direction of the elevator area of the clips.
  • German patent application DE 1 195 459 A1 discloses a Venetian blind in which the turning tapes inevitably fold inwards and should lay between the slats, being provided for fastening the turning tapes on the slats hinge pins around which the turning tapes are herumgeschlauft, and wherein these loops then in double position of the turning tape on the inwardly facing side of the hinge pins are held together.
  • the turning tapes should then form kinks there, which is to ensure the folding inwards.
  • the attachment of the turning tapes to the slats is technically complex and not reliable enough in terms of specification of the desired folding direction inside.
  • German patent application shows DE 1 659 463 A1 a Venetian blind with inwardly folding reversible tapes.
  • the textile turning tapes each have a pleated fold in the middle between two lamellae in order to deflect the folding direction inwards, or a seam produced by sewing or gluing.
  • a loop of the turning tape has once laid to the outside, which can always occur due to wind loads of the Venetian blind, and has remained in this position for a certain amount of time, it can no longer be ensured that it still folds inwards.
  • a turning tape according to the invention is on the carrier tape on the other broad side than the locking groove between two successive Klipsbefestist instituten each provided a flexible tendon which engages over a central portion of the carrier tape between the two consecutive Klipsbefestististn and at least in a no-load condition of the turning belt to a Broad side of the detent groove bulges out towards the belly.
  • a plurality of juxtaposed tendons could each be provided, which overlap the central portion of the carrier tape or it could be overlapped in each case two or more eccentric areas between two lamellae of one or more tendons.
  • bands, cords or strands of any flexible material can be used, which is elastic enough to join in the inward folding of the carrier tape.
  • a carrier tape is particularly suitable a textile and made of plastic carrier tape, which may preferably be formed as a flat band.
  • the Klipsbefestists institute are preferably made of plastic.
  • the Klipsbefest onlys institute may preferably be welded or sprayed onto the carrier tape.
  • a Venetian blind In a Venetian blind according to the invention enschende turning tapes are provided to connect the slats together at their longitudinal edges. About the turning tapes, the slats are not only turned, but also held in the drained state of the Venetian blind.
  • the carrier tape is therefore formed as a textile ribbon, in particular of a synthetic fiber textile.
  • a synthetic fiber textile for the flat strip has proved to be favorable, because so with small thickness, a high load capacity can be handled, so that the stack height remains low even when laying between the slats turning tapes.
  • Such synthetic fiber textile is also weldable, such as by high-frequency or laser beam welding, so that the tendons, if they are made of a thermoplastic material, can be welded to the ribbon, resulting in a reliable connection.
  • a carrier tape according to the invention may be not only a textile tape, but also another flexible traction cable or a non-textile, but band-like flexible traction means.
  • the carrier tape is made of a textile, for example a synthetic fiber textile
  • the tendons could be spliced into the textile, for example in a middle width section of the ribbon, and then surrounded on their outsides by the bulged strands of the carrier tape.
  • the tendons therefore consist of a sprayable plastic and are sprayed onto the carrier tape or ribbon.
  • plastic clip elements are fastened to the turning tapes for attachment to the lamellae, which accordingly advantageously also consist of a sprayable plastic material and can be sprayed on. Due to the fact that the turning tapes are to fold inwards, only one axis of rotation can be provided on the clip elements, namely in the form of a latching groove into which a clip pin fastened parallel to the longitudinal edge of the lamella on the lamellar longitudinal edge can be clipped.
  • the clip elements therefore have a geometrically simple and one-piece moldable form.
  • the tendons have a stretch strip portion in which they consist of an elastomer or a plastic having elastomeric properties. Preferably in the sense of a simple production, they consist overall of this elastomer or plastic with elastomeric properties.
  • To the Tendon section can then connect on both sides in each case sleeve sections at which the tendons have the carrier tape or ribbon embracing cuffs, and with which the tendons are attached to the carrier tape or ribbon.
  • the tendon or the tendons are each made of a plastic having thermoplastic properties, preferably a thermoplastic elastomer, they can be sprayed onto the carrier tape or ribbon at their sleeve sections around the carrier tape or flat tape, so that a reliable connection between the Tendons and the carrier tape or ribbon is ensured.
  • elastic tendons preferably tendons made of an elastomer
  • tendons can be introduced into the turning tapes with tensile strains tensioned by the weight of the drained external blind, which then when pulling the venetian blind, when the turning tapes are free, to a contraction of the tendons and thus Reliably leading to an inward folding of the turning tapes.
  • Elastomers do not lose their elasticity over a long time, so that not only is it ensured that the curtain presents itself over the entire service life of the turning tapes with inwardly folded turning tapes, but also when a loop of a turning tape has once folded outwards, For example, in wind load or the like, and in this position has remained for a time, the turning tape in question then folds back inside.
  • the reversible tapes can each be fastened to the slats by means of clip pins inserted into the edge flanges of the slats.
  • the clip pins can be, for example, U-shaped and be shot with their two U-legs in the edge flanges, in which case the U-base is used as a Klips forest for attached to the turning tapes Klipsbefestists institute.
  • the free ends of the Klipsroote so stuck in the edge beading.
  • the carrier strip is correspondingly thin and if the flanges on the lamella are recessed in the region of the turning belt, the strip does not increase the stack height or at least only slightly.
  • Suitable flat bands for the turning belts are available in strip thicknesses of 0.28 mm, thus per loop between the slats results in a relatively slight increase in the stack height of the contracted Raffstorebehangs of 6/10 mm.
  • the lamellae can be squeezed or pressed against at least one of their edge curls in the region of the associated turning tapes and have a corresponding diameter recess. The resulting weakening of the lamella can be accepted, since it is only present at the location of the flanging, on which the lamellae are held and no surface loads occur.
  • FIG. 1 shows a total of 1 designated turning tape for a venetian blind in sections. It can be seen in regular sections on a designated 2, textile ribbon with sprayed Klipsbefestistrs institute 3 and each in the middle region between the Klipsbefestists instituten 3 this middle section cross-chords 4.
  • the Klipsbefest onlys institute 3 are in detail the FIG. 2 refer to.
  • the Klipsbefest onlys institute 3 consist of an extruded or injectable plastic, such as polyamide, and are the flat strip 2 embracing sprayed on this.
  • the Klipsbefest onlys institute 3 have on the one Wide side of the flat belt 2 each one of two elastic legs encompassed locking groove 10 for a lamella side fastened clip pin, which in FIG. 4 can be found with reference numeral 6.
  • the tendons 4 engage over a central portion 9 of the flat band 2 between two of the clip fastening elements 3 in each case on the other broad side of the flat band 2.
  • the tendons 4 are in particular the FIG. 3 to be taken in detail.
  • the tendons 4 are made of a weather-resistant and UV-resistant elastomer, such as EPDM, and each have a stretch strip section 8, which spans the overlapped by the respective tendon 4 area 9 of the flat strip 2 and bulges at least in the unloaded or in the partial load range inward , At the expansion stiffener portion 8 close on both sides of sleeve portions 7, with which the tendon 4 around the flat band 2 splashed around, so injection molded and vulcanized.
  • the turning band can have a thickness in the range of 1 mm in the area of the sleeve sections 7.
  • Suitable flat textile tapes have thicknesses of 0.25-0.30 mm.
  • the elastomer of the tendons 4 can be formed in each case with a central fold in the stretch strip section 8, which additionally supports the inwardly folding the turning tapes high.
  • a supporting fold may also be provided on the flat strip 2 in the middle between two successive clip fastening elements 3.
  • FIGS. 4 and 5 show the completely drained Raffstorebehang in which caused by slats 5 weight load on the turning belts 1 and this fully extends. Unlike the in FIG. 1 shown, load-free state of the turning belt are located on the outside of the turning tapes 1 tendons 4 are overextended and are under a certain bias.
  • the slats 5 are in the FIGS. 4 and 5 shown in a horizontal position, from which they can be brought by train on the turning tapes 1 on one side thereof in a closed, pivoted about 90 ° position.
  • the lamellae 5 in this case have Randbördelitch 12, 13, which in the FIG. 11 can be found in detail.
  • the above-mentioned Klipslixe 6 are injected.
  • the Klips foreste 6 have a U-shaped shape and are with their two U-legs, that is shot with their free ends ahead in the respective edge beading and point with the U-bottom as a Klipslix 6 to the respective turning tape 1 out.
  • the free ends of the Klips foreste 6 stuck so in the edge beading.
  • the Klipsstatte 6 are clipped into the locking grooves 10 of the turning tape-side Klipsbefest instructs emulate 3 and thus attached via the angled on the flat strip 2 Klipsbefest instructs institute 3 on the flat strip 2.
  • the slats 5 have a curved shape with three bellies, the bellies, as shown from one side to the other side can narrow in the ratio of the golden section. Approximately in the middle between their edge crimps, the slats 5 at their longitudinal side ends in each case guide heads 11, via which they can be recorded guided in side guide rails.
  • FIGS. 8 and 9 shown situation in which the stretch strip portions 8 of the individual tendons 4 are in their relaxed ground state, which is also in the FIG. 1 to it can be seen, in each case a clear belly 9 has formed in the central region between the individual slats 5 at the areas of the flat bands 2 which are overlapped by the tendons.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)

Description

Die Erfindung betrifft einen Raffstore mit einem aus Lamellen bestehenden Behang, wobei die Lamellen über an ihren Längsseiten angreifende Wendebänder miteinander verbunden sind. Die Erfindung betrifft auch ein solches Wendeband, welches ein Trägerband aufweist, an dem in regelmäßigen Abständen Klipsbefestigungelemente befestigt sind, die auf der einen Breitseite des Trägerbands eine quer zum Trägerband festgelegte Rastnut für einen lamellenseitigen Klipsstift aufweisen.The invention relates to a Venetian blind with a curtain consisting of slats, wherein the slats are connected to each other by engaging on their longitudinal sides turning tapes. The invention also relates to such a turning belt, which has a carrier tape to which Klipsbefestigungelemente are fixed at regular intervals, which have on one broad side of the carrier tape a transversely fixed to the carrier tape locking groove for a lamella-side clip pin.

Bei gängigen Raffstoren, siehe z.B. die österreichische Patentschrift AT 505 405 B1 hat die Verbindung zwischen Lamelle und Wendeband jeweils zwei bewegliche Achsen, eine Achse zum Wenden der Lamellen wenn der Behang abgefahren ist und eine Achse zur Schlaufenbildung des Wendebands wenn der Behang hoch gefahren wird. Das Wendeband schlauft dabei neben dem zusammengezogenen Lamellenstapel.For common external blinds, see for example the Austrian patent AT 505 405 B1 The connection between lamella and turning belt has two movable axes each, one axis for turning the lamellae when the curtain has moved down and one axis for looping the turning belt when the curtain is being raised. The reversible belt runs along the gathered lamella stack.

Nachteilig ist es dabei in optischer Hinsicht, dass die Schlaufen immer sichtbar sind. Ferner können sich etwa bei entsprechender Windbelastung einzelne Schlaufen zwischen die Lamellen legen, und damit den Lamellenstapel negativ beeinflussen, so dass dieser ungleichmäßig und schief wird. Die Verbindung zwischen Lamelle und Wendeband mit zwei Achsen benötigt ferner entsprechenden Bauraum, welcher dann nicht mehr für die Breite der Lamellen des Behangs zur Verfügung steht. Schließlich sind zwei Achsen anfälliger als eine.It is disadvantageous in optical terms that the loops are always visible. Furthermore, individual loops can lay between the slats, for example, with appropriate wind load, and thus adversely affect the slat stack, so that it is uneven and crooked. The connection between the blade and turning belt with two axes also requires appropriate space, which is then no longer available for the width of the slats of the blind. After all, two axes are more vulnerable than one.

Bei anderen Lösungen hat die Verbindung zwischen Lamelle und Wendeband nur eine zum Wenden der Lamellen dienende Achse, die parallel zur Lamellenlängsachse ist. Das Wendeband bildet dann keine Schlaufen, die sich entlang den Längskanten der Lamellen erstrecken, sondern Schlaufen, die sich quer zur Lamellenachse erstrecken. Dazu zeigt die US-Patentschrift US 2,130,319 einen Raffstore mit Lamellen und Wendebändern, wobei die Wendebänder Textilschlaufen haben, in die U-förmige Hakenelemente mit einem Scharnierachsenabschnitt eingeschlauft werden, bevor die U-Schenkel in Löchern der Randbördelung der Lamelle gesteckt werden. Die Wendebänder haben dementsprechend lediglich eine Drehachse um den Scharnierachsenabschnitt. Das Wendeband soll sich dabei möglichst immer zwischen die Lamellen falten, um eine optisch ansprechende Stapelbildung zu gewährleisten und den Platzbedarf in Lamellenquerrichtung klein zu halten. Die Schlaufen sind dann im zusammengezogenen Lamellenstapel bzw. -paket nicht mehr sichtbar und auch von Umwelteinflüssen wie z.B. UV-Licht und Schmutz geschützt.In other solutions, the connection between the blade and turning belt has only one serving for turning the slats axis, which is parallel to the lamella longitudinal axis. The turning band then forms no loops that extend along the longitudinal edges of the slats, but loops that extend transversely to the slat axis. This is shown in the US patent US 2,130,319 a Venetian blind with slats and turning tapes, wherein the turning tapes have textile loops, in the U-shaped hook elements with a Hinge axle section are run in before the U-legs are inserted into holes of the edge flange of the lamella. The turning tapes accordingly have only one axis of rotation about the hinge axis section. The turning tape should always fold between the slats to ensure a visually appealing pile formation and to keep the space required in slat transverse direction small. The loops are then no longer visible in the gathered lamella stack or package and also protected from environmental influences such as UV light and dirt.

Um sicherzustellen, dass die Wendebänder nach innen falten, also zwischen den Lamellen im aufgezogenen Lamellenstapel zu liegen kommen sind schon verschiedene Vorschläge gemacht worden. Die deutsche Patentschrift DE 947 020 B1 zeigt z.B. einen Raffstore, bei dem anstatt Wendebänder relativ steife Einzelsegmente vorgesehen sind, die jeweils mit einem Scharnier in der Mitte zwischen zwei Lamellen verbunden sind, so dass die Faltung nach innen gewährleistet ist. Der Material- und Fertigungsaufwand für die Wendesegemente ist jedoch hoch und die mit solchen Wendesegemente ausgerüsteteten Raffstoren sind optisch nicht ansprechend.To ensure that the turning tapes fold inwards, so come to lie between the slats in the mounted lamella stack have been various proposals have been made. The German patent DE 947 020 B1 shows, for example, a Venetian blind, in which instead of turning tapes relatively stiff individual segments are provided, which are each connected to a hinge in the middle between two lamellae, so that the convolution is ensured to the inside. However, the material and manufacturing costs for the Wendesegemente is high and equipped with such Wendesegemente external venetian blinds are not visually appealing.

Um die steifen Wendesegemente zu vermeiden und trotzdem eine definierte Richtung der Faltung, dort allerdings nicht nach innen, sondern entlang der Lamellenlängskanten, zu gewährleisten, wird in der US-Patentschrift US 4,155,395 vorgeschlagen, ein Metallband mit einer gewissen Steifigkeit als Wendeband zu verwenden, welches in der Mitte zwischen zwei Lamellen mit einer U-Schlaufe in eine Klemmhülse eingeklemmt ist, wodurch die Faltungsrichtung vorgegeben ist. Die Klemmhülsen würden bei nach innen faltenden Wendebändern die Stapelhöhe des aufgezogenen Raffstorebehangs jedoch unerwünscht vergrößern.In order to avoid the stiff Wendesegemente and still a defined direction of the fold, but there not to the inside, but along the lamellar longitudinal edges, to ensure, is in the US Patent US 4,155,395 proposed to use a metal strip with a certain stiffness as turning tape, which is clamped in the middle between two lamellae with a U-loop in a collet, whereby the folding direction is predetermined. However, the collets would undesirably increase the stacking height of the mounted external venetian blind when turning tapes are folded inwards.

Die europäische Patentanmeldung EP 2 006 482 A2 zeigt einen gattungsgemäßen Raffstore, bei dem die am Wendeband angeschweißten Klipse einachsig auf U-förmige Klammern aufgeklipst sind, welche mit ihren U-Schenkeln in die Randbördelungen der Lamellen eingeschossen sind. Das Wendeband ist Bereich der Klipse schräg zur Aufzugsrichtung eingeschweißt. Dadurch soll eine gewisse Vorspannung in die gewünschte Richtung der Faltung erzielt werden. Abgesehen davon, dass diese Lösung die Faltungsrichtung nicht zuverlässig genug vorgibt, soll dort bei einem in Querrichtung der Lamellen faltenden Wendeband gerade verhindert werden, dass sich das Wendeband nach innen faltet, sich also zwischen die Lamellen legt.The European patent application EP 2 006 482 A2 shows a generic Venetian blind, in which the welded on the turning tape clips uniaxially clipped onto U-shaped brackets, which are injected with their U-legs in the edge flanges of the slats. The turning band is welded obliquely to the direction of the elevator area of the clips. As a result, a certain bias in the desired direction of the folding should be achieved. Apart from the fact that this solution does not specify the folding direction reliable enough, it should just be prevented at a folding in the transverse direction of the slats turning tape that the turning tape folds inwards, so it lays between the slats.

Ähnlich ist in der deutschen Patentanmeldung DE 1 195 459 A1 ein Raffstore offenbart, bei dem sich die Wendebänder zwangsläufig nach innen falten und zwischen die Lamellen legen sollen, wobei zur Befestigung der Wendebänder an den Lamellen Gelenkstifte vorgesehen sind, um die die Wendebänder herumgeschlauft sind, und wobei diese Schlaufen dann in doppelter Lage des Wendeband auf der nach innen gewandten Seite der Gelenkstifte zusammengehalten werden. Die Wendebänder sollen dann dort Knicke bilden, die die Faltung nach innen gewährleisten soll. Die Befestigung der Wendebänder an den Lamellen ist jedoch fertigungstechnisch aufwändig und hinsichtlich der Vorgabe der gewünschten Faltungsrichtung nach innen auch nicht zuverlässig genug.Similarly, in the German patent application DE 1 195 459 A1 discloses a Venetian blind in which the turning tapes inevitably fold inwards and should lay between the slats, being provided for fastening the turning tapes on the slats hinge pins around which the turning tapes are herumgeschlauft, and wherein these loops then in double position of the turning tape on the inwardly facing side of the hinge pins are held together. The turning tapes should then form kinks there, which is to ensure the folding inwards. The attachment of the turning tapes to the slats, however, is technically complex and not reliable enough in terms of specification of the desired folding direction inside.

Ferner zeigt die deutsche Patentanmeldung DE 1 659 463 A1 einen Raffstore mit nach innen faltenden Wendebändern. Die textilen Wendebänder weisen jeweils in der Mitte zwischen zwei Lamellen einen Plisseefalz auf, um die Faltungsrichtung nach innen zu lenken, oder einen durch Nähen oder Kleben erzeugten Falz. Auch hier besteht bei der Zuverlässigkeit der Nach-Innen-Faltung noch Verbesserungspotential. Denn wenn sich eine Schlaufe des Wendebands einmal nach außen gelegt hat, was aufgrund von Windbelastungen des Raffstores immer vorkommen kann, und in dieser Stellung eine gewisse Zeit verblieben ist, kann nicht mehr sichergestellt werden, dass sie sich noch nach innen faltet.Furthermore, the German patent application shows DE 1 659 463 A1 a Venetian blind with inwardly folding reversible tapes. The textile turning tapes each have a pleated fold in the middle between two lamellae in order to deflect the folding direction inwards, or a seam produced by sewing or gluing. Again, there is still room for improvement in the reliability of the inward convolution. For if a loop of the turning tape has once laid to the outside, which can always occur due to wind loads of the Venetian blind, and has remained in this position for a certain amount of time, it can no longer be ensured that it still folds inwards.

Weiterhin ist in der DE 1 659 463 A1 vorgeschlagen worden, zwei sich gegenüberstehende Wendebänder in der Mitte zwischen zwei benachbarten Lamellen jeweils über ein elastisches Zugelement zu verbinden. Diese Lösung erscheint zwar zuverlässig, ist jedoch fertigungstechnisch aufwändig und teuer. Auch der Platzbedarf der Zugelemente ist im Hinblick auf die Stapelhöhe des zusammengezogenen Behangs kritisch.Furthermore, in the DE 1 659 463 A1 been proposed, two themselves opposite turning bands in the middle between two adjacent slats in each case to connect via an elastic tension element. Although this solution appears reliable, it is complex and expensive to manufacture. The space requirement of the tension elements is critical with regard to the stack height of the contracted curtain.

Ferner offenbart die DE 1 659 463 A1 Führungselemente zwischen zwei sich gegenüberstehenden Wendebändern in der Mitte zwischen zwei benachbarten Lamellen, die an ihren Außenseiten jeweils einen das zugeordnete Wendeband außenseitig umfassenden Steg aufweisen und so ein Ausbauchen des Wendebands nach außen verhindern. Auch diese Lösung erscheint fertigungstechnisch aufwändig und teuer. Auch hier ist der Platzbedarf der Führungselemente im Hinblick auf die Stapelhöhe des zusammengezogenen Behangs kritisch.Further, the DE 1 659 463 A1 Guide elements between two mutually opposite turning bands in the middle between two adjacent lamellae, which each have on their outer sides the associated turning band on the outside comprehensive web and thus prevent bulging of the turning belt to the outside. Also, this solution appears technically complex and expensive. Again, the space requirement of the guide elements with respect to the stack height of the contracted curtain is critical.

In der DE 1 659 463 A1 sind ferner zweilagige Wendebänder angedacht worden, wobei die äußere Schicht aus einem elastischen Material besteht, welches bei gestreckten Wendebändern unter leichter Vorspannung steht und die gewünschte Faltung nach innen bewirkt. An solchen Wendebändern wären aber heute gängige Kunststoffklips für die Befestigung an den Raffstorelamellen nicht zuverlässig genug anzuspritzen. Außerdem wären solche Wendebänder auch im gefalteten Zustand einer steten Belastung durch die Vorspannung der Außenschicht ausgesetzt und in ihrer Herstellung relativ teuer.In the DE 1 659 463 A1 Furthermore, two-layer turning tapes have been considered, wherein the outer layer consists of an elastic material which is slightly biased in stretched turning tapes and causes the desired folding to the inside. On such turning tapes would be today but common plastic clips for attachment to the Venetian blinds not reliable enough to inject. In addition, such turning tapes would be exposed in the folded state of a constant load by the bias of the outer layer and relatively expensive to manufacture.

Es ist Aufgabe der vorliegenden Erfindung, einen gattungsgemäßen Raffstore mit nach innen faltenden Wendebändern auszustatten und ein dafür geeignetes Wendeband bereitzustellen, wobei bei günstigen Fertigungskosten die Stapelhöhe des zusammengezogenen Raffstorebehangs möglichst wenig beeinträchtigt wird und trotzdem auch im Dauerlastbereich noch eine definierte Faltung der Wendebänder nach innen mit hoher Zuverlässigkeit gewährleistet ist.It is an object of the present invention to provide a generic blindstore with inwardly folding turning tapes and provide a suitable turning tape, with low production costs, the stack height of the gathered Raffstorebehangs is affected as little as possible and still in the continuous load range, a defined folding of the turning tapes inside high reliability is guaranteed.

Diese Aufgabe wird hinsichtlich des Wendebands durch die Merkmale des Anspruchs 1 gelöst, hinsichtlich des Raffstores durch die Merkmale des Anspruchs 7.This object is with respect to the turning belt by the features of Claim 1, with respect to the outer blind by the features of claim 7.

Bei einem erfindungsgemäßen Wendeband ist an dem Trägerband auf der anderen Breitseite als die Rastnut zwischen zwei aufeinander folgenden Klipsbefestigungelementen jeweils eine flexible Sehne vorgesehen, die einen mittleren Abschnitt des Trägerbands zwischen den beiden aufeinander folgenden Klipsbefestigungelementen übergreift und zumindest in einem lastfreien Zustand des Wendebands zu einem zur Breitseite der Rastnut hin gerichteten Bauch auswölbt. Alternativ könnten jeweils auch mehrere nebeneinander angeordnete Sehnen vorgesehen sein, die den mittleren Abschnitt des Trägerbands übergreifen oder es könnten jeweils zwei oder mehrere außermittige Bereiche zwischen zwei Lamellen von jeweils einer oder mehreren Sehnen übergriffen werden. Als Sehnen im Sinne der Erfindung können Bänder, Schnüre oder Stränge aus jedwedem flexiblen Material Anwendung finden, welches elastisch genug ist, um die Nach-Innen-Faltung des Trägerbands mitzumachen. Als Trägerband eignet sich insbesondere ein textiles und aus Kunststoff bestehendes Trägerband, welches vorzugsweise als Flachband ausgebildet sein kann. Die Klipsbefestigungselemente bestehen vorzugsweise aus Kunststoff. Die Klipsbefestigungselemente können an dem Trägerband vorzugsweise aufgeschweißt oder aufgespritzt sein.In a turning tape according to the invention is on the carrier tape on the other broad side than the locking groove between two successive Klipsbefestigungelementen each provided a flexible tendon which engages over a central portion of the carrier tape between the two consecutive Klipsbefestigungelementen and at least in a no-load condition of the turning belt to a Broad side of the detent groove bulges out towards the belly. Alternatively, a plurality of juxtaposed tendons could each be provided, which overlap the central portion of the carrier tape or it could be overlapped in each case two or more eccentric areas between two lamellae of one or more tendons. As tendons in the sense of the invention, bands, cords or strands of any flexible material can be used, which is elastic enough to join in the inward folding of the carrier tape. As a carrier tape is particularly suitable a textile and made of plastic carrier tape, which may preferably be formed as a flat band. The Klipsbefestigungselemente are preferably made of plastic. The Klipsbefestigungselemente may preferably be welded or sprayed onto the carrier tape.

Bei einem erfindungsgemäßen Raffstore sind ensprechende Wendebänder vorgesehen, um die Lamellen an ihren Längskanten miteinander zu verbinden. Über die Wendebänder werden die Lamellen dabei nicht nur gewendet, sondern im abgelassenen Zustand des Raffstores auch gehalten.In a Venetian blind according to the invention ensprechende turning tapes are provided to connect the slats together at their longitudinal edges. About the turning tapes, the slats are not only turned, but also held in the drained state of the Venetian blind.

Je dünner das Trägerband, umso weniger wird es die Stapelhöhe des aufgezogenen Behangs, bei dem es zwischen den Lamellen liegt, negativ beeinflussen. Bevorzugt ist das Trägerband daher als textiles Flachband ausgebildet, insbesondere aus einem Kunstfasertextil. Die Verwendung eines Kunstfasertextils für das Flachband hat sich als günstig erwiesen, weil damit bei geringer Dicke eine hohe Traglast bewältigt werden kann, so dass die Stapelhöhe auch bei sich zwischen die Lamellen legenden Wendebändern gering bleibt. Ein solches Kunstfasertextil ist zudem schweißbar, etwa per Hochfrequenz- oder Laserstrahlschweißen, so dass die Sehnen, falls sie aus einem thermoplastischen Kunststoff bestehen, an das Flachband angeschweißt sein können, was eine zuverlässige Verbindung ergibt. Ein Trägerband im Sinne der Erfindung kann jedoch nicht nur ein textiles Band sein, sondern auch ein anderes flexibles Zugseil oder ein nichttextiles, aber bandartig flexibles Zugmittel.The thinner the carrier tape, the less it will adversely affect the stack height of the mounted curtain, where it lies between the slats. Preferably, the carrier tape is therefore formed as a textile ribbon, in particular of a synthetic fiber textile. The use of a synthetic fiber textile for the flat strip has proved to be favorable, because so with small thickness, a high load capacity can be handled, so that the stack height remains low even when laying between the slats turning tapes. Such synthetic fiber textile is also weldable, such as by high-frequency or laser beam welding, so that the tendons, if they are made of a thermoplastic material, can be welded to the ribbon, resulting in a reliable connection. However, a carrier tape according to the invention may be not only a textile tape, but also another flexible traction cable or a non-textile, but band-like flexible traction means.

Wenn das Trägerband aus einem Textil ist, beispielsweise einem Kunstfasertextil, könnten die Sehnen in das Textil beispielsweise in einem mittleren Breitenabschnitt des Trägerbands bzw. Flachbands eingespleißt sein und dann an ihren Außenseiten von den ausgebauchten Strängen des Trägerbands bzw. Flachbands umgeben sein.If the carrier tape is made of a textile, for example a synthetic fiber textile, the tendons could be spliced into the textile, for example in a middle width section of the ribbon, and then surrounded on their outsides by the bulged strands of the carrier tape.

Auch eine Verklebung der Sehnen mit dem Trägerband bzw. Flachband wäre denkbar, wenn auch verfahrensmäßig schwer zu handhaben. Gemäß einer vorteilhaften Ausführungsform bestehen die Sehnen daher aus einem spritzbaren Kunststoff und sind auf das Trägerband bzw. Flachband aufgespritzt. Wie heute schon üblich sind an den Wendebändern zur Befestigung an den Lamellen Kunststoffklipselemente befestigt, welche dementsprechend vorteilhaft auch aus einem spritzbaren Kunststoff bestehen und aufgespritzt sein können. Dadurch, dass die Wendebänder nach innen falten sollen, kann dabei an den Klipselementen lediglich eine Drehachse vorgesehen sein, nämlich in Form einer Rastnut, in die ein parallel zur Lamellenlängskante an der Lamellenlängskante befestigter Klipsstift eingeklipst werden kann. Die Klipselemente haben daher eine geometrisch einfache und einstückig spritzbare Form.Also, a bonding of the tendons with the carrier tape or ribbon would be conceivable, although difficult to handle procedurally. According to an advantageous embodiment, the tendons therefore consist of a sprayable plastic and are sprayed onto the carrier tape or ribbon. As is already customary today, plastic clip elements are fastened to the turning tapes for attachment to the lamellae, which accordingly advantageously also consist of a sprayable plastic material and can be sprayed on. Due to the fact that the turning tapes are to fold inwards, only one axis of rotation can be provided on the clip elements, namely in the form of a latching groove into which a clip pin fastened parallel to the longitudinal edge of the lamella on the lamellar longitudinal edge can be clipped. The clip elements therefore have a geometrically simple and one-piece moldable form.

Vorteilhaft weisen die Sehnen einen Dehnungsstreifenabschnitt auf, in dem sie aus einem Elastomer bzw. einem Kunststoff mit elastomerischen Eigenschaften bestehen. Bevorzugt im Sinne einer einfachen Fertigung bestehen sie insgesamt aus diesem Elastomer bzw. Kunststoff mit elastomerischen Eigenschaften. An den Sehnenabschnitt können dann auf beiden Seiten jeweils Manschettenabschnitte anschließen, an denen die Sehnen das Trägerband bzw. Flachband umgreifende Manschetten aufweisen, und mit denen die Sehnen an dem Trägerband bzw. Flachband befestigt sind. Ist die Sehne bzw. sind die Sehnen jeweils aus einem Kunststoff mit thermoplastischen Eigenschaften, bevorzugt einem thermoplastischen Elastomer, so können sie an ihren Manschettenabschnitten um das Trägerband bzw. Flachband herum auf das Trägerband bzw. Flachband aufgspritzt werden, so dass eine zuverlässige Verbindung zwischen den Sehnen und dem Trägerband bzw. Flachband sichergestellt ist.Advantageously, the tendons have a stretch strip portion in which they consist of an elastomer or a plastic having elastomeric properties. Preferably in the sense of a simple production, they consist overall of this elastomer or plastic with elastomeric properties. To the Tendon section can then connect on both sides in each case sleeve sections at which the tendons have the carrier tape or ribbon embracing cuffs, and with which the tendons are attached to the carrier tape or ribbon. If the tendon or the tendons are each made of a plastic having thermoplastic properties, preferably a thermoplastic elastomer, they can be sprayed onto the carrier tape or ribbon at their sleeve sections around the carrier tape or flat tape, so that a reliable connection between the Tendons and the carrier tape or ribbon is ensured.

Über elastische Sehnen, bevorzugt Sehnen aus einem Elastomer, kann bei durch das Eigengewicht des abgelassenen Raffstorebehangs zugbelasteten Wendebändern eine gewisse Vorspannung in die Wendebänder eingebracht werden, welche dann dann beim Aufziehen des Raffstores, wenn die Wendebänder lastfrei werden, zu einem Zusammenziehen der Sehnen und damit zuverlässig zu einem nach innen Falten der Wendebänder führt. Elastomere verlieren ihre Elastizität auch über lange Zeit nicht, so dass nicht nur sichergestellt ist, dass sich der Behang über die gesamte Lebensdauer der Wendebänder mit nach innen gefalteten Wendebändern präsentiert, sondern auch dann, wenn sich eine Schlaufe eines Wendebands einmal nach außen gefaltet hat, beispielsweise bei Windbelastung oder dergleichen, und in dieser Stellung mehrere Zeit verblieben ist, sich das betreffende Wendeband danach wieder nach innen faltet.About elastic tendons, preferably tendons made of an elastomer, can be introduced into the turning tapes with tensile strains tensioned by the weight of the drained external blind, which then when pulling the venetian blind, when the turning tapes are free, to a contraction of the tendons and thus Reliably leading to an inward folding of the turning tapes. Elastomers do not lose their elasticity over a long time, so that not only is it ensured that the curtain presents itself over the entire service life of the turning tapes with inwardly folded turning tapes, but also when a loop of a turning tape has once folded outwards, For example, in wind load or the like, and in this position has remained for a time, the turning tape in question then folds back inside.

Sind die Lamellen des Raffstorebehangs aus Metall und weisen an ihren Längskanten jeweils Randbördelungen auf, so können die Wendebänder jeweils über in die Randbördelungen der Lamellen eingeschossene Klipsstifte an den Lamellen befestigt werden. Die Klipsstifte können dabei beispielsweise U-förmig sein und mit ihren beiden U-Schenkel in die Randbördelungen eingeschossen werden, wobei dann der U-Grund als Klipsstift für die an den Wendebändern befestigten Klipsbefestigungselemente dient. Die freien Enden der Klipsstifte stecken also in der Randbördelung fest. Die Klipsbefestigungselemente können dabei in Form und Fertigung einfach sein, da lediglich eine Drehachse an den einzelnen Klipsbefestigungselementen vorhanden sein muss, nämlich in Form der den jeweils zugeordneten Klipsstift umgreifenden Rastnut.If the slats of the external venetian blind are made of metal and each have edge flanges on their longitudinal edges, then the reversible tapes can each be fastened to the slats by means of clip pins inserted into the edge flanges of the slats. The clip pins can be, for example, U-shaped and be shot with their two U-legs in the edge flanges, in which case the U-base is used as a Klipsstift for attached to the turning tapes Klipsbefestigungselemente. The free ends of the Klipsstifte so stuck in the edge beading. The Klipsbefestigungselemente can be simple in shape and manufacture, since only one axis of rotation of the individual Klipsbefestigungselementen must be present, namely in the form of the respective associated Klipsstift embracing locking groove.

Ist das Trägerband entsprechend dünn und sind die Bördelungen an der Lamelle im Bereich des Wendebands ausgespart, vergrößert das Band die Pakethöhe nicht oder zumindest nur unwesentlich.If the carrier strip is correspondingly thin and if the flanges on the lamella are recessed in the region of the turning belt, the strip does not increase the stack height or at least only slightly.

Geeignete Flachbänder für die Wendebänder sind dabei in Banddicken von 0,28mm erhältlich, was somit pro Schlaufe zwischen den Lamellen eine relativ geringfügige Erhöhung der Stapelhöhe des zusammengezogenen Raffstorebehangs von 6/10 mm ergibt. Um diese zusätzliche Stapelhöhe auch noch zu vermeiden oder zumindest zu verringern können die Lamellen an zumindest einer ihrer Randbördelungen im Bereich der zugeordneten Wendebänder gequetscht bzw. eingedrückt sein und eine entsprechende Durchmesserrücknehmung aufweisen. Die dadurch hervorgerufene Schwächung der Lamelle kann in Kauf genommen werden, da sie lediglich an der Stelle der Bördelung vorhanden ist, an der die Lamellen gehalten werden und keine Flächenlasten auftreten.Suitable flat bands for the turning belts are available in strip thicknesses of 0.28 mm, thus per loop between the slats results in a relatively slight increase in the stack height of the contracted Raffstorebehangs of 6/10 mm. In order to avoid or at least reduce this additional stacking height, the lamellae can be squeezed or pressed against at least one of their edge curls in the region of the associated turning tapes and have a corresponding diameter recess. The resulting weakening of the lamella can be accepted, since it is only present at the location of the flanging, on which the lamellae are held and no surface loads occur.

Vorteilhafte Ausführungsformen der Erfindung werden anhand der beiliegenden Zeichnung näher erläutert. Es zeigen:

Figur 1
eine Schnittansicht durch einen Abschnitt eines Wendebands gemäß einer Ausführungsform der Erfindung;
Figur 2
Einzelheit B in Figur 1;
Figur 3
Einzelheit C in Figur 1;
Figur 4
eine Seitenansicht eines Raffstores mit Wendebändern, die dem in den Figuren 1 - 3 gezeigten Wendeband entsprechen;
Figur 5
eine perspektivische Teilansicht des in Figur 4 gezeigten Raffstores bei abgelassenem Behang und aufgeklappten Behanglamellen;
Figur 6
eine der Figur 4 entsprechende Ansicht am Anfang der Aufziehbewegung des in den Figuren 4 und 5 gezeigten Behangs;
Figur 7
eine perspektivische Teilansicht des in den Figuren 4 - 6 gezeigten Behangs in der in Figur 6 gezeigten Stellung;
Figur 8
eine Seitenansicht des in den Figuren 4 - 7 gezeigten Raffstorebehangs in einer weiter aufgezogenen Stellung;
Figur 9
den in den Figuren 4 - 8 gezeigten Raffstorebehang in der in Figur 8 gezeigten Stellung in perspektivischer Teilansicht;
Figur 10
eine perspektivische Teilansicht des in den Figuren 4 - 9 gezeigten Raffstorebehangs bei aufgezogenen Lamellen; und
Figur 11
eine Seitenansicht des in den Figuren 4 - 10 gezeigten Behangs mit aufgezogenen Lamellen.
Advantageous embodiments of the invention will be explained in more detail with reference to the accompanying drawings. Show it:
FIG. 1
a sectional view through a portion of a turning belt according to an embodiment of the invention;
FIG. 2
Detail B in FIG. 1 ;
FIG. 3
Detail C in FIG. 1 ;
FIG. 4
a side view of a Venetian blind with turning tapes, which in the Figures 1 - 3 Corresponding turning tape correspond;
FIG. 5
a partial perspective view of the in FIG. 4 Venetian blinds with drapery and unfolded blinds;
FIG. 6
one of the FIG. 4 corresponding view at the beginning of the Aufziehbewegung in the FIGS. 4 and 5 shown hangings;
FIG. 7
a partial perspective view of the in the FIGS. 4 to 6 shown hangings in the in FIG. 6 shown position;
FIG. 8
a side view of the in the FIGS. 4 to 7 shown Raffstorebehangs in a further raised position;
FIG. 9
in the FIGS. 4 to 8 shown external blind in the in FIG. 8 shown position in perspective partial view;
FIG. 10
a partial perspective view of the in the FIGS. 4 to 9 Raffstorebehangs shown with mounted lamellae; and
FIG. 11
a side view of the in the FIGS. 4 to 10 shown hangings with mounted lamellae.

Zunächst wird Bezug genommen auf die Figur 1, welche eine insgesamt mit 1 bezeichnetes Wendeband für einen Raffstore ausschnittsweise zeigt. Man erkennt die in regelmäßigen Abschnitten auf ein mit 2 bezeichnetes, textiles Flachband mit aufgespritzen Klipsbefestigungselemente 3 und jeweils im mittleren Bereich zwischen den Klipsbefestigungselementen 3 diesen mittleren Abschnitt übergreifende Sehnen 4. Die Klipsbefestigungselemente 3 sind im einzelnen der Figur 2 zu entnehmen. Die Klipsbefestigungselemente 3 bestehen aus einem extrudier- oder spritzbaren Kunststoff, wie z.B. Polyamid, und sind das Flachband 2 umgreifend auf dieses aufgespritzt. Die Klipsbefestigungselemente 3 weisen dabei auf der einen Breitseite des Flachbands 2 jeweils eine von zwei elastischen Schenkeln umfasste Rastnut 10 für einen lamellenseitig befestigten Klipsstift auf, welcher in Figur 4 mit Bezugszeichen 6 zu entnehmen ist.First, reference is made to the FIG. 1 , which shows a total of 1 designated turning tape for a venetian blind in sections. It can be seen in regular sections on a designated 2, textile ribbon with sprayed Klipsbefestigungselemente 3 and each in the middle region between the Klipsbefestigungselementen 3 this middle section cross-chords 4. The Klipsbefestigungselemente 3 are in detail the FIG. 2 refer to. The Klipsbefestigungselemente 3 consist of an extruded or injectable plastic, such as polyamide, and are the flat strip 2 embracing sprayed on this. The Klipsbefestigungselemente 3 have on the one Wide side of the flat belt 2 each one of two elastic legs encompassed locking groove 10 for a lamella side fastened clip pin, which in FIG. 4 can be found with reference numeral 6.

Die Sehnen 4 übergreifen einen mittigen Abschnitt 9 des Flachbands 2 zwischen zwei der Klipsbefestigungselemente 3 dabei jeweils auf der anderen Breitseite des Flachbands 2. Die Sehnen 4 sind dabei insbesondere der Figur 3 im Einzelnen zu entnehmen. Die Sehnen 4 bestehen aus einem witterungs- und UV-beständigen Elastomer, wie beispielsweise EPDM, und weisen jeweils einen Dehnungsstreifenabschnitt 8 auf, der den von der jeweiligen Sehne 4 übergriffenen Bereich 9 des Flachbands 2 überspannt und zumindest im entlasteten oder im Teillastbereich nach innen ausbaucht. An den Dehnungssteifenabschnitt 8 schließen zu beiden Seiten Manschettenabschnitte 7 auf, mit denen die Sehne 4 um das Flachband 2 herumgespritzt, also spritzgegossen und damit vulkanisiert ist. Insgesamt kann das Wendeband dabei im Bereich der Manschettenabschnitte 7 eine Dicke im Bereich von 1 mm aufweisen. Geeignete Flachtextilbänder haben Dicken von 0,25 - 0,30mm. Wie der Figur 3 zu entnehmen ist, kann das Elastomer der Sehnen 4 dabei jeweils mit einem mittleren Falz im Dehnungsstreifenabschnitt 8 ausgeformt werden, welcher das nach innen Falten der Wendebänder hoch zusätzlich unterstützt. Zusätzlich kann auch noch ein unterstützender Falz an dem Flachband 2 in der Mitte zwischen zwei aufeinander folgenden Klipsbefestigungselementen 3 vorgesehen sein.The tendons 4 engage over a central portion 9 of the flat band 2 between two of the clip fastening elements 3 in each case on the other broad side of the flat band 2. The tendons 4 are in particular the FIG. 3 to be taken in detail. The tendons 4 are made of a weather-resistant and UV-resistant elastomer, such as EPDM, and each have a stretch strip section 8, which spans the overlapped by the respective tendon 4 area 9 of the flat strip 2 and bulges at least in the unloaded or in the partial load range inward , At the expansion stiffener portion 8 close on both sides of sleeve portions 7, with which the tendon 4 around the flat band 2 splashed around, so injection molded and vulcanized. Overall, the turning band can have a thickness in the range of 1 mm in the area of the sleeve sections 7. Suitable flat textile tapes have thicknesses of 0.25-0.30 mm. Again FIG. 3 it can be seen, the elastomer of the tendons 4 can be formed in each case with a central fold in the stretch strip section 8, which additionally supports the inwardly folding the turning tapes high. In addition, a supporting fold may also be provided on the flat strip 2 in the middle between two successive clip fastening elements 3.

Die Figuren 4 und 5 zeigen den vollständig abgelassenen Raffstorebehang, bei dem eine durch Lamellen 5 verursachte Gewichtsbelastung auf den Wendebändern 1 lastet und diese dadurch völlig durchstreckt. Im Gegensatz zu dem in Figur 1 gezeigten, lastfreien Zustand des Wendebands sind die auf der Außenseite der Wendebänder 1 befindlichen Sehnen 4 dabei überstreckt und stehen unter einer gewissen Vorspannung. Die Lamellen 5 sind dabei in den Figuren 4 und 5 in einer horizontalen Stellung gezeigt, aus der sie über Zug auf die Wendebänder 1 auf einer ihrer Seiten in eine geschlossene, um ca. 90° verschwenkte Stellung gebracht werden können.The FIGS. 4 and 5 show the completely drained Raffstorebehang in which caused by slats 5 weight load on the turning belts 1 and this fully extends. Unlike the in FIG. 1 shown, load-free state of the turning belt are located on the outside of the turning tapes 1 tendons 4 are overextended and are under a certain bias. The slats 5 are in the FIGS. 4 and 5 shown in a horizontal position, from which they can be brought by train on the turning tapes 1 on one side thereof in a closed, pivoted about 90 ° position.

Die Lamellen 5 weisen dabei Randbördelungen 12, 13 auf , die in der Figur 11 im Einzelnen zu entnehmen sind. In die Randbördelungen sind die vorstehend angesprochenen Klipsstifte 6 eingeschossen. Die Klipsstifte 6 haben dazu eine U-förmige Form und sind mit ihren beiden U-Schenkeln, das heißt mit ihren freien Enden voraus in die jeweilige Randbördelung eingeschossen und weisen mit dem U-Grund als Klipsstift 6 zum jeweiligen Wendeband 1 hin. Die freien Enden der Klipsstifte 6 stecken also in der Randbördelung fest. Die Klipsstifte 6 sind dabei in den Rastnuten 10 der wendebandseitigen Klipsbefestigungselemente 3 eingeklipst und somit über die an dem Flachband 2 angesspritzen Klipsbefestigungselemente 3 an dem Flachband 2 befestigt.The lamellae 5 in this case have Randbördelungen 12, 13, which in the FIG. 11 can be found in detail. In the Randbördelungen the above-mentioned Klipsstifte 6 are injected. The Klipsstifte 6 have a U-shaped shape and are with their two U-legs, that is shot with their free ends ahead in the respective edge beading and point with the U-bottom as a Klipsstift 6 to the respective turning tape 1 out. The free ends of the Klipsstifte 6 stuck so in the edge beading. The Klipsstifte 6 are clipped into the locking grooves 10 of the turning tape-side Klipsbefestigungselemente 3 and thus attached via the angled on the flat strip 2 Klipsbefestigungselemente 3 on the flat strip 2.

Die Lamellen 5 haben dabei eine geschwungene Form mit drei Bäuchen, wobei die Bäuche, wie gezeigt von ihrer einen Seite zur anderen Seite sich im Verhältnis des goldenen Schnitts verengen können. In etwa in der Mitte zwischen ihren Randbördelungen weisen die Lamellen 5 an ihrer Längsseitenenden jeweils Führungsköpfe 11 auf, über die sie in Seitenführungsschienen geführt aufgenommen sein können.The slats 5 have a curved shape with three bellies, the bellies, as shown from one side to the other side can narrow in the ratio of the golden section. Approximately in the middle between their edge crimps, the slats 5 at their longitudinal side ends in each case guide heads 11, via which they can be recorded guided in side guide rails.

Wird der Raffstorebehang nun aus der in den Figuren 4 und 5 gezeigten, vollständig abgelassenen Stellung angehoben, in dem die nicht dargestellten, die Lamellen 5 durchgreifenden Aufzugsbänder, welche an der untersten Lamelle bzw. der Endleiste des Behangs angreifen nach oben gezogen werden, so entsteht die in den Figuren 6 und 7 gezeigte Situation, in der die Wendebänder 1 beginnen, sich nach innen durchzubiegen, weil die im mittleren Bereich 9 zwischen zwei aufeinander folgenden Lamellen 5 an den Flachbändern 2 der jeweiligen angreifenden Sehnen 4 sich zusammenziehen und das Flachband 2 nach innen ausbauchen.The Raffstorebehang is now from the in the FIGS. 4 and 5 raised, fully deflated position, in which the not shown, the slats 5 by cross-winding elevator belts, which attack on the lowermost slat or the end bar of the curtain are pulled up, so arises in the FIGS. 6 and 7 shown situation in which the turning tapes 1 begin to deflect inward, because in the central region 9 between two successive lamellae 5 on the flat bands 2 of the respective attacking tendons 4 contract and bulge the ribbon 2 inward.

Wird der Behang noch weiter aufgezogen, so entsteht die in den Figuren 8 und 9 gezeigte Situation, in der die Dehnungsstreifenabschnitte 8 der einzelnen Sehnen 4 sich in ihrem entspannten Grundzustand befinden, der auch in der Figur 1 zu sehen ist, wobei sich im mittleren Bereich zwischen den einzelnen Lamellen 5 jeweils ein deutlicher Bauch 9 an den von den Sehnen übergriffenen Bereichen der Flachbänder 2 gebildet hat.If the curtain is raised even further, the result in the FIGS. 8 and 9 shown situation in which the stretch strip portions 8 of the individual tendons 4 are in their relaxed ground state, which is also in the FIG. 1 to it can be seen, in each case a clear belly 9 has formed in the central region between the individual slats 5 at the areas of the flat bands 2 which are overlapped by the tendons.

Wird der Behang nun vollständig aufgezogen, so legen sich die in den Figuren 8 und 9 gezeigten Situation schon ansatzweise vorhandenen Schlaufen der Wendebänder 1 vollständig zwischen die Lamellen 5, wie in den Figuren 10 und 11 gezeigt ist. Die Schlaufen sind somit von außen nicht mehr zu sehen, sondern lediglich noch die an den Klipsstiften 6 angreifenden Klipsbefestigungselemente 3. Wie der Figur 11 im Einzelnen zu entnehmen ist, liegen die Lamellen 5 dabei mit ihren Randbördelungen 12, bzw. 13 auf den Schlaufen des Flachbands 2 auf, so dass sich die Stapelhöhe des aufgezogenen Behangs geringfügig erhöht. Um dies zu vermeiden können die Randbördelungen im Bereich der Wendebänder 1 geschwächt sein, wie dies an der Randbördelung 13 beispielhaft gezeigt ist. Dadurch, dass die Lamellen auf den textilen Flachbändern 2 aufliegen, wird jedoch eine erwünschte Geräuschdämpfung beim Zusammenziehen des Raffstorebehangs erreicht. Man erkennt in Figur 11 ferner, dass die Manschettenabschnitte 7 von ihrer Breite, aber auch von ihrer Länge her klein genug sind, dass die Lamellen 5 nicht auf die Manschettenabschnitte 7 aufliegen, sondern lediglich auf die Flachbänder 2 im Bereich ihrer Randbördelungen.If the curtain is now completely raised, then put in the FIGS. 8 and 9 shown situation already loosely existing loops of the turning tapes 1 completely between the slats 5, as in the FIGS. 10 and 11 is shown. The loops are thus no longer visible from the outside, but only the Klipsbefestigungselemente acting on the Klipsstiften 6 3. Like the FIG. 11 can be seen in detail, lie the slats 5 with their edge flanges 12, and 13 on the loops of the flat belt 2, so that the stack height of the mounted blind increased slightly. In order to avoid this, the edge curls in the region of the turning tapes 1 may be weakened, as shown by way of example on the edge flanging 13. The fact that the slats rest on the textile flat belts 2, however, a desired noise attenuation is achieved when contracting the external blind control. One recognizes in FIG. 11 Furthermore, that the sleeve sections 7 are small enough from their width, but also by their length that the slats 5 do not rest on the sleeve portions 7, but only on the flat strips 2 in the region of their edge flanges.

Claims (10)

  1. Turnover belt (1) for a lamellar blind or a shutter with a carrier strip (2), with clip attachment means (3) being fixed in regular intervals on the carrier strip (2) which comprise on the one broad side of the carrier strip (2) a latching groove (10) defined transversely to the carrier strip (2) for a clip pin (6) on the slat side, characterized in that on the other broad side of the carrier strip (2) between two consecutive clip attachment means (3) one flexible tendon (4) each is provided overlapping a middle section of the carrier strip (2) between the two consecutive clip attachment means (3), and at least in a load-free condition of the turnover belt (1) bulges into a bulge (9) directed towards the broad side of the latching groove (10).
  2. Turnover belt (1) according to claim 1, characterized in that the carrier strip (2) is folded in each of the middle sections overlapped by one of the tendons (4) approximately in the center between the two consecutive clip attachment means (3).
  3. Turnover belt (1) according to claim 1 or 2, characterized in that the tendons (4) are comprised of an elastomeric plastic material, bulge the carrier strip (2) in a load-free condition, and stretch in a tensile stressed condition, and also permit stretching of the carrier strip (2) to its original length.
  4. Turnover belt (1) according to claim 1, 2 or 3, characterized in that the tendons (4) each comprise an extension strip section (8) adjacent on both section ends to a collar section (7) enclosing the carrier strip (2), and the tendons (4) being fixed on both sides of the overlapped area on the carrier strip (2) with the collar sections (7).
  5. Turnover belt (1) according to any one of the preceding claims, characterized in that the tendons (4) at least in the area of their collars are comprised of an injectable plastic material and are injected onto the carrier strip (2).
  6. Turnover belt (1) according to claims 1 to 4, characterized in that the tendons (4) at least in the area of their collars are comprised of a plastic material with thermoplastic properties and are welded onto the carrier strip.
  7. Lamellar blind with a curtain comprised of slats (5), which are passed through by lift tapes affixed on a lower curtain end strip, and are connected with turnover belts (1) on their two longitudinal edges (12, 13), characterized in that the turnover belts (1) are formed according to any one of the preceding claims.
  8. Lamellar blind according to claim 7, characterized in that the slats (5) are comprised of metal and the two longitudinal edges (12, 13) of the slats are each formed by an edge border (12, 13), the clip pins (6) on the slat side being comprised of metal, being U-shaped and shot fixed with their two free ends ahead and tacked in the attributed edge border (12, 13), with the turnover belts (1) each being clipped with the latching grooves (10) of their clip attachment means (3) onto the clip pins (6).
  9. Lamellar blind according to claim 7 or 8, characterized in that the slats (5) on at least one of their edge borders (12,13) in the area of the attributed turnover belts each comprise a pinch adapted to avoid or at least reduce an increase of a stack height of the contracted lamellar blind curtain due to the turnover belts located between the slats (5) in loops.
  10. Lamellar blind according to claim 8 or 9, characterized in that the slats (5) comprise a curved cross-sectional shape with two or three bulges, with the collar sections (8) of the tendons (4) comprising outer dimensions by means of which they fit into the space defined by the edge borders (12, 13) between two slats placed on top of each other in the contracted lamellar blind curtain.
EP12005477.0A 2011-11-08 2012-07-27 Turnover belt for a lamellar blind and lamellar blind with such a turnover belt Active EP2592213B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110117843 DE102011117843B4 (en) 2011-11-08 2011-11-08 External blind and turning tape for it

Publications (3)

Publication Number Publication Date
EP2592213A2 EP2592213A2 (en) 2013-05-15
EP2592213A3 EP2592213A3 (en) 2014-08-27
EP2592213B1 true EP2592213B1 (en) 2015-11-18

Family

ID=46642321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12005477.0A Active EP2592213B1 (en) 2011-11-08 2012-07-27 Turnover belt for a lamellar blind and lamellar blind with such a turnover belt

Country Status (2)

Country Link
EP (1) EP2592213B1 (en)
DE (1) DE102011117843B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2015012468A (en) 2013-03-15 2016-06-29 Hunter Douglas Roll-up coverings for architectural openings and related methods, systems and devices.
EP3269918B1 (en) 2014-09-10 2019-12-25 Hunter Douglas Inc. Roll-up covering for architectural openings
CH718561A1 (en) * 2021-04-23 2022-10-31 Seilfabrik Ullmann Turning belt arrangement, method for producing irreversible folds in turning belts and device for creating folds in turning belts.
WO2024113082A1 (en) * 2022-11-28 2024-06-06 李享贡 Louver and support assembly thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2130319A (en) * 1934-05-18 1938-09-13 United Metal Box Co Inc Venetian blind slat
US2547632A (en) * 1947-06-07 1951-04-03 Ewing Dev Company Sun screen with plastic warp
DE947020C (en) * 1950-03-03 1956-08-09 Bierlich J H louvre
DE1195459B (en) * 1961-03-24 1965-06-24 Andreas Kruell Supporting tape with pivot pins for slat blinds and slat blinds with such support straps
CH415003A (en) * 1964-07-10 1966-06-15 W Baumann Fa Venetian blinds
AT369130B (en) * 1976-08-23 1982-12-10 Griesser Ag REEL SLAT STORE
AT505292B1 (en) * 2007-06-21 2008-12-15 Kraler Franz Venetian blind
AT505405B1 (en) * 2007-06-21 2009-01-15 Kraler Franz Venetian blind

Also Published As

Publication number Publication date
EP2592213A3 (en) 2014-08-27
DE102011117843B4 (en) 2014-08-28
DE102011117843A1 (en) 2013-05-08
EP2592213A2 (en) 2013-05-15

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