EP2716856B1 - Slat shutter and its tilting band - Google Patents
Slat shutter and its tilting band Download PDFInfo
- Publication number
- EP2716856B1 EP2716856B1 EP13000252.0A EP13000252A EP2716856B1 EP 2716856 B1 EP2716856 B1 EP 2716856B1 EP 13000252 A EP13000252 A EP 13000252A EP 2716856 B1 EP2716856 B1 EP 2716856B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- lamellae
- band
- tilting
- turning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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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
- E06B9/382—Details of ladder-tapes or ladder chains, e.g. buckles for local shortening of tapes
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 band.
- common external venetian blinds have turning tapes which are fastened to the slats of the external venetian blind on both longitudinal sides.
- 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.
- 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 fins and turning tapes, wherein the turning tapes have textile loops, are looped into the U-shaped hook elements with a hinge axis portion 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 from environmental influences such. UV light and dirt protected.
- 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 visually not appealing.
- the European patent application EP 2 006 482 A2 shows a Venetian blind, in which the welded on the turning tape clips are 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 attaching 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, around the folding direction to steer inward, 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.
- Klipsbefest only embodiment are fixed to the carrier tape at regular intervals, which serve for a Klipsbefest only the carrier tape to the slats.
- the Klipsbefest only embodiment can, for example, have a defined on the one broad side of the carrier tape transversely to the carrier tape locking groove for a lamella-side clip pin. This type of connection has proven to be advantageous in terms of manufacturing technology
- the band flexor consists of a material with elastomeric shape memory or has a Beugerabites of this material and is bulged convexly in its load-free state, eg curved arcuate, angled, or has a shape with two adjoining an arcuate curvature legs.
- the belly of the convex curvature points in the built in the external blindstate state inwardly toward the slats, so in the development with the provided on the Klipsbefestists instituten locking grooves to the broad side of the carrier tape, where the locking grooves are located.
- To both ends of the Beugerabitess in each case joins a connecting portion, wherein the band flexors are connected at its two connecting portions with the carrier tape.
- the band flexor can deform elastically under bending load from its angled shape into an elongated shape or bend and deforms due to the shape memory elastic back into the angled shape, as soon as no tensile load is applied.
- Elastomers generally do not lose their elasticity over a long period, so that it is not only 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 once folded outwards has remained, for example in wind load or the like, and in this position several time, the respective turning tape then folds back inside.
- the Bandbeuger can be relatively short, because they need to initiate the inward folding of the turning belt only. Once the laying direction has been specified, further folding takes place by itself. Apart from the material savings, this offers the particular advantage that the turning belt only has the width of the carrier tape over long distances. This results in an advantageous, overall thin packing form of the turning belt in the contracted lamella stack.
- the Bandbeuger are connected only at their connecting portions with the carrier tape, but not at their Beugerabroughen. As a result, transverse forces leading to premature aging of the belt flexors can be avoided.
- the band flexors have in their Beugerabroughen each one corresponding to the carrier tape or even slightly larger width, so as to be able to act on the carrier tape with the largest possible bending moment.
- Beugerabitese could Bandbeuger each have a plurality of juxtaposed strip of material as Beugerabrough.
- two or more eccentric areas between two lamellae could each be overlapped by one or more of the band flexors.
- the band flexors can overlap the carrier tape with their Beugerabroughen both on the built in the external blindstate state inside, the fins facing side as well as on the built-in the external blindstate state outside the lamellae facing side or on both sides.
- the carrier tape In order to protect the carrier tape at its kinks in the contracted lamella stack against damage, it has proven to be favorable when the Beugerabroughe are arranged on the inner, the lamellae facing side.
- band flexors can be found any elastic material application, which is elastic and also permanently elastic enough to join in the extension of the carrier tape and the associated deformation and recovery in the long term.
- 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 proven to be favorable, because it can handle a high load capacity at low thickness, so that the stack height remains low even when laying between the slats turning tapes.
- Such an artificial fiber textile is also weldable, such as by high-frequency or Laser beam welding, so that the band flexors, if they are made of a thermoplastic material, may 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 band flexors 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, it is sufficient if only one axis of rotation is 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 slat on the slat longitudinal edge can be clipped.
- the clip elements therefore have a geometrically simple and one-piece moldable form.
- the Bandbeuger can only exist in their Beugerabchanging of the elastomer or a plastic with elastomeric properties.
- the band flexors consist overall of this elastomer or plastic with elastomeric properties.
- To the flexor can then connect on both sides in each case as the carrier tape or ribbon embracing cuffs formed connecting portions with which the band flexors are attached to the carrier tape or ribbon.
- the band flexor or the band flexors are each made of a plastic having thermoplastic properties, preferably a thermoplastic elastomer, they can be sprayed onto the carrier band or flat band on their collars around the carrier band or flat band, so that a reliable connection between the flexor elements and the carrier tape or flat band is ensured.
- 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 Klipsbefestistististsetti can be simple in shape and manufacture, since only one axis of rotation on the individual Klipsbefest only must be present, namely in the form of the respective associated Klipslix embracing locking groove.
- the carrier band may be in each of the central portions overlapped by one of the band flexors approximately midway between the two successive clip fastening members be folded.
- 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 strips for the turning tapes are available in strip thicknesses of 0.28 mm, which thus results per loop between the waves, a relatively small increase in the stack height of the contracted Raffstorebehangs of 6/10 mm.
- the lamellae can also be crimped on at least one of their edge curls in the region of the associated turning tapes. The resulting weakening of the lamella can be accepted, since they only exist at the location of the flange is where 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 that Klipsbefest onlys institute 3 sprayed in regular sections on a textile flat belt designated 2, and in each case in the middle region between the Klipsbefest onlys instituten 3 this central portion cross-band 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 in this case have on one broad side of the flat strip 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 band flexors 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 broad side of the flat band 2 with the locking grooves.
- the Bandbeuger 4 are in particular the FIG. 3 to be taken in detail.
- the Bandbeuger 4 consist of a weather- and UV-resistant elastomer, such as EPDM, and each have a diffractive portion 8, which spans the overlapped by the respective tendon 4 area 9 of the flat strip 2 and bulges in the load-free state or in the partial load range inward , At the Beugerabites 9 close on both sides of sleeve-shaped connecting portions 7, with which the band benders 4 sprayed around the flat strip 2, so injection molded and vulcanized with it.
- the turning belt 1 can have a thickness in the region of 1 mm in the region of the sleeves 9.
- Suitable flat textile tapes have thicknesses of 0.25-0.30 mm.
- the elastomer of Belt flexor 4 could in each case be formed with a middle fold in the flexor section 8, which additionally supports the inward folding of the turning tapes 1.
- 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 deflated external blind control, in which a weight load caused by lamellae 5 pulls on the turning tapes 1 and thereby fully extended. Unlike the in FIG. 1 shown, load-free state of the turning belt while the belt flexors 4 are stretched and are under a certain elastic tension.
- 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. 1 can be found in detail.
- the above-mentioned Klipslixe 6 are injected.
- the Klipsstatte 6 have a U-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 Klipsstatte 6 are clipped into the locking grooves 10 of the turning tape-side Klipsbefest instructs emulate 3 and thus attached to the molded on the flat strip 2 'Klipsbefest onlys institute 3 on the flat strip 2.
- the fins 5 have a curved shape with three bellies, wherein 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 Beugerabroughe 8 of the individual Bandbeuger 4 are in their relaxed ground state, which is also in the FIG. 1 it can be seen, wherein in the central region between the individual slats 5 in each case a clear belly 9 has formed at the overlapped by the band flexors areas of the flat strips 2.
- 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.
- 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 cuffs 7 of their width, but also of their length are small enough that they fit between the slats 5, without increasing the stack height.
- the slats 5 can rest somewhat on the sleeves, so that there is a noise attenuation during contraction of the slat stack.
- the sleeves 7 can also be kept so thin or short that the slats rest only on the flat bands 2 in the region of their edge flanges.
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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.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 band.
Bei früheren Raffstoren wurden Leiterbänder eingesetzt, auf deren Sprossen die Lamellen des Raffstorebehangs im abgelassenen Zustand aufliegen. Ein Beispiel für einen solchen Raffstore ist der deutschen Patentanmeldung
Heute gängige Raffstoren weisen dagegen Wendebänder auf, die auf beiden Längsseiten an den Lamellen des Raffstorebehangs befestigt sind. Bei solchen gängigen Raffstoren, siehe z.B. die österreichische Patentschrift
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 then no longer for the width of the slats the hanging is available. 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
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.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 from environmental influences such. UV light and dirt protected.
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
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
Die europäische Patentanmeldung
Ähnlich ist in der deutschen Patentanmeldung
Ferner zeigt die deutsche Patentanmeldung
Weiterhin ist in der
Ferner offenbart die
In der
Es ist daher Aufgabe der vorliegenden Erfindung, eine alternative Lösung für nach innen faltende Wendebänder für heutige Raffstoren zu schaffen, sowie Raffstoren mit solchen Wendebändern, 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 therefore an object of the present invention to provide an alternative solution for inwardly folding turning tapes for today's external venetian blinds, and external venetian blinds with such turning tapes, with low production costs, the stack height of the contracted external venetian blind is affected as little as possible and still in the continuous load range, a defined folding the turning tapes is ensured inside with high reliability.
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 achieved with respect to the turning belt by the features of
Bei einem Wendeband für einen Raffstore oder eine Jalousie, welches ein Trägerband aufweist, sind erfindungsgemäß in regelmäßigen Abständen Klipsbefestigungelemente an dem Trägerband befestigt, die zu einer Klipsbefestigung des Trägerbands an den Lamellen dienen. Die Klipsbefestigungelemente können dabei beispielsweise eine auf der einen Breitseite des Trägerbands quer zum Trägerband festgelegte Rastnut für einen lamellenseitigen Klipsstift aufweisen. Diese Verbindungsart hat sich in fertigungstechnischer Hinsicht als vorteilhaft erwiesenIn a turning tape for a Venetian blind or a blind, which has a carrier tape, according to the invention Klipsbefestigungelemente are fixed to the carrier tape at regular intervals, which serve for a Klipsbefestigung the carrier tape to the slats. The Klipsbefestigungelemente can, for example, have a defined on the one broad side of the carrier tape transversely to the carrier tape locking groove for a lamella-side clip pin. This type of connection has proven to be advantageous in terms of manufacturing technology
Dabei ist zwischen zwei aufeinander folgenden Klipsbefestigungelementen jeweils ein lediglich den mittleren Abschnitt des Trägerbands zwischen den beiden aufeinander folgenden Klipsbefestigungelementen übergreifender Bandbeuger vorgesehen. Der Bandbeuger besteht aus einem Material mit elastomerem Formengedächtnis oder weist einen Beugerabschnitt aus diesem Material auf und ist in seinem lastfreien Zustand konvex ausgewölbt, also z.B. bogenförmig gekrümmt, abgewinkelt, oder hat eine Form mit zwei sich an eine bogenförmige Krümmung anschließenden Schenkeln. Der Bauch der konvexen Krümmung weist dabei im in den Raffstorebehang eingebauten Zustand nach innen zu den Lamellen hin, also in der Weiterbildung mit den an den Klipsbefestigungselementen vorgesehenen Rastnuten zu der Breitseite des Trägerbands hin, an der sich die Rastnuten befinden. Zu beiden Enden des Beugerabschnitts schließt sich dabei jeweils ein Verbindungsabschnitt an, wobei die Bandbeuger an ihren beiden Verbindungsabschnitten mit dem Trägerband verbunden sind.In this case, between each two successive Klipsbefestigungelementen each one only the central portion of the carrier tape between the two consecutive Klipsbefestigungelementen cross band bending is provided. The band flexor consists of a material with elastomeric shape memory or has a Beugerabschnitt of this material and is bulged convexly in its load-free state, eg curved arcuate, angled, or has a shape with two adjoining an arcuate curvature legs. The belly of the convex curvature points in the built in the external blindstate state inwardly toward the slats, so in the development with the provided on the Klipsbefestigungselementen locking grooves to the broad side of the carrier tape, where the locking grooves are located. To both ends of the Beugerabschnitts in each case joins a connecting portion, wherein the band flexors are connected at its two connecting portions with the carrier tape.
Der Bandbeuger kann sich unter Zuglast aus seiner abgewinkelten Form in eine längserstreckte Form elastisch verformen bzw. verbiegen und verformt sich aufgrund des Formengedächtnisses elastisch in die abgewinkelten Form zurück, sobald keine Zuglast mehr anliegt. Elastomere verlieren ihre Elastizität im allgemeinen 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.The band flexor can deform elastically under bending load from its angled shape into an elongated shape or bend and deforms due to the shape memory elastic back into the angled shape, as soon as no tensile load is applied. Elastomers generally do not lose their elasticity over a long period, so that it is not only 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 once folded outwards has remained, for example in wind load or the like, and in this position several time, the respective turning tape then folds back inside.
Die Bandbeuger können dabei relativ kurz sein, denn sie müssen die Nach-Innen-Faltung des Wendebands lediglich einleiten. Ist die Legerichtung erst einmal vorgegeben, erfolgt die weitere Faltung von selbst. Abgesehen von der Materialersparnis bietet das besonders den Vorteil, dass das Wendeband über weite Strecken lediglich die Breite des Trägerbands aufweist. Dadurch ergibt sich eine vorteilhafte, insgesamt dünn packende Form des Wendebands im zusammengezogenen Lamellenstapel.The Bandbeuger can be relatively short, because they need to initiate the inward folding of the turning belt only. Once the laying direction has been specified, further folding takes place by itself. Apart from the material savings, this offers the particular advantage that the turning belt only has the width of the carrier tape over long distances. This results in an advantageous, overall thin packing form of the turning belt in the contracted lamella stack.
Vorteilhaft sind die Bandbeuger dabei lediglich an ihren Verbindungsabschnitten mit dem Trägerband verbunden, nicht aber an ihren Beugerabschnitten. Dadurch können auf zu einer vorzeitige Alterung der Bandbeuger führende Querkräfte vermieden werden.Advantageously, the Bandbeuger are connected only at their connecting portions with the carrier tape, but not at their Beugerabschnitten. As a result, transverse forces leading to premature aging of the belt flexors can be avoided.
Vorteilhaft haben die Bandbeuger in ihren Beugerabschnitten jeweils eine dem Trägerband entsprechende oder sogar etwas größere Breite, um so das Trägerband mit einem möglichst großes Biegemoment beaufschlagen zu können. Alternativ zu einer einstückigen Form der Beugerabschnitte könnten die Bandbeuger jeweils auch mehrere, nebeneinander angeordnete Materialstreifen als Beugerabschnitt aufweisen. Ferner könnten auch jeweils zwei oder mehrere außermittige Bereiche zwischen zwei Lamellen von jeweils einem oder mehreren der Bandbeuger übergriffen werden.Advantageously, the band flexors have in their Beugerabschnitten each one corresponding to the carrier tape or even slightly larger width, so as to be able to act on the carrier tape with the largest possible bending moment. As an alternative to a one-piece form of Beugerabschnitte could Bandbeuger each have a plurality of juxtaposed strip of material as Beugerabschnitt. Furthermore, in each case two or more eccentric areas between two lamellae could each be overlapped by one or more of the band flexors.
Dabei können die Bandbeuger das Trägerband mit ihren Beugerabschnitten sowohl auf der im in den Raffstorebehang eingebauten Zustand innenliegenden, den Lamellen zugewandten Seite übergreifen als auch auf der im in den Raffstorebehang eingebauten Zustand außenliegenden, den Lamellen abgewandten Seite oder auch auf beiden Seiten. Um das Trägerband an seinen Knickstellen im zusammengezogenen Lamellenstapel gegen Beschädigungen zu schützen hat es sich aber als günstig erwiesen, wenn die Beugerabschnitte auf der innenliegenden, den Lamellen zugewandten Seite angeordnet sind.In this case, the band flexors can overlap the carrier tape with their Beugerabschnitten both on the built in the external blindstate state inside, the fins facing side as well as on the built-in the external blindstate state outside the lamellae facing side or on both sides. In order to protect the carrier tape at its kinks in the contracted lamella stack against damage, it has proven to be favorable when the Beugerabschnitte are arranged on the inner, the lamellae facing side.
Als Material für die Bandbeuger kann dabei jedwedes elastische Material Anwendung finden, welches elastisch und auch dauerelastisch genug ist, um die Streckung des Trägerbands und die damit einhergehenden Verformung und Rückverformung auf Dauer mitzumachen.As material for the band flexors can be found any elastic material application, which is elastic and also permanently elastic enough to join in the extension of the carrier tape and the associated deformation and recovery in the long term.
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 Bandbeuger, 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 proven to be favorable, because it can handle a high load capacity at low thickness, so that the stack height remains low even when laying between the slats turning tapes. Such an artificial fiber textile is also weldable, such as by high-frequency or Laser beam welding, so that the band flexors, if they are made of a thermoplastic material, may 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.
Auch eine Verklebung der Bandbeuger mit dem Trägerband bzw. Flachband wäre denkbar, wenn auch verfahrensmäßig schwer zu handhaben. Gemäß einer vorteilhaften Ausführungsform bestehen die Bandbeuger 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, reicht es dabei aus, wenn an den Klipselementen lediglich eine Drehachse vorgesehen ist, 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.A bonding of the belt flexor with the carrier tape or flat tape would be conceivable, although difficult to handle procedurally. According to an advantageous embodiment, the band flexors 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, it is sufficient if only one axis of rotation is 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 slat on the slat longitudinal edge can be clipped. The clip elements therefore have a geometrically simple and one-piece moldable form.
Die Bandbeuger können dabei lediglich in ihren Beugerabschnitt aus dem Elastomer bzw. einem Kunststoff mit elastomerischen Eigenschaften bestehen. Bevorzugt im Sinne einer einfachen Fertigung bestehen die Bandbeuger aber insgesamt aus diesem Elastomer bzw. Kunststoff mit elastomerischen Eigenschaften. An den Beugerabschnitt können dann auf beiden Seiten jeweils als das Trägerband bzw. Flachband umgreifende Manschetten ausgebildete Verbindungsabschnitte anschließen, mit denen die Bandbeuger an dem Trägerband bzw. Flachband befestigt sind. Ist der Bandbeuger bzw. sind die Bandbeuger jeweils aus einem Kunststoff mit thermoplastischen Eigenschaften, bevorzugt einem thermoplastischen Elastomer, so können sie an ihren Manschetten um das Trägerband bzw. Flachband herum auf das Trägerband bzw. Flachband aufgspritzt werden, so dass eine zuverlässige Verbindung zwischen den Beugerelementen und dem Trägerband bzw. Flachband sichergestellt ist.The Bandbeuger can only exist in their Beugerabschnitt of the elastomer or a plastic with elastomeric properties. Preferably in the sense of a simple production, however, the band flexors consist overall of this elastomer or plastic with elastomeric properties. To the flexor can then connect on both sides in each case as the carrier tape or ribbon embracing cuffs formed connecting portions with which the band flexors are attached to the carrier tape or ribbon. If the band flexor or the band flexors are each made of a plastic having thermoplastic properties, preferably a thermoplastic elastomer, they can be sprayed onto the carrier band or flat band on their collars around the carrier band or flat band, so that a reliable connection between the flexor elements and the carrier tape or flat band is ensured.
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 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 Klipsbefestigungselemente can be simple in shape and manufacture, since only one axis of rotation on the individual Klipsbefestigungselementen must be present, namely in the form of the respective associated Klipsstift embracing locking groove.
Um die durch die elastische Vorspannung der Bandbeuger angestoßene Nach-Innen-Faltung des Trägerbands in den mittleren Bereichen zwischen den Klipsbefestigung zu unterstützen kann das Trägerband zusätzlich in jedem der von einem der Bandbeuger übergriffenen mittleren Abschnitte in etwa in der Mitte zwischen den beiden aufeinander folgenden Klipsbefestigungelementen gefalzt sein.In addition, to assist in the inward folding of the carrier tape in the middle regions between the clip attachment initiated by the elastic bias of the band flexors, the carrier band may be in each of the central portions overlapped by one of the band flexors approximately midway between the two successive clip fastening members be folded.
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 Wellen 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 sein. 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 strips for the turning tapes are available in strip thicknesses of 0.28 mm, which thus results per loop between the waves, a relatively small 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 also be crimped on at least one of their edge curls in the region of the associated turning tapes. The resulting weakening of the lamella can be accepted, since they only exist at the location of the flange is where 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
gezeigten Raffstores bei abgelassenem Behang und aufgeklappten Behanglamellen;Figur 4 Figur 6- eine der
Figur 4 entsprechende Ansicht am Anfang der Aufziehbewegung des inden Figuren 4 und 5 gezeigten Behangs; Figur 7- eine perspektivische Teilansicht des in den
Figuren 4 - 6 gezeigten Behangs in der in gezeigten Stellung;Figur 6 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 gezeigten Stellung in perspektivischer Teilansicht;Figur 8 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.
- 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 theFIGS. 4 and 5 shown hangings; - FIG. 7
- a partial perspective view of the in the
FIGS. 4 to 6 shown hangings in the inFIG. 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 inFIG. 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
Die Klipsbefestigungselemente 3 sind im einzelnen der
Die Bandbeuger 4 übergreifen einen mittigen Abschnitt 9 des Flachbands 2 zwischen zwei der Klipsbefestigungselemente 3 dabei jeweils auf der Breitseite des Flachbands 2 mit den Rastnuten. Die Bandbeuger 4 sind dabei insbesondere der
Die
Die Lamellen 5 weisen dabei Randbördelungen 12, 13 auf, die in der
Die Lamellen 5 haben 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
Wird der Raffstorebehang nun aus der in den
Wird der Behang noch weiter aufgezogen, so entsteht die in den
Wird der Behang nun vollständig aufgezogen, so legen sich die in den
Wie der
Abwandlungen und Modifikationen der gezeigten Ausführungsform sind möglich, ohne den Rahmen der Erfindung zu verlassen.Modifications and modifications of the illustrated embodiment are possible without departing from the scope of the invention.
Claims (10)
- A tilting band (1) for a slat shutter or a blind with a carrier strip (2), in particular a textile carrier strip (2) consisting of plastic material and preferably configured as a flat strip (2), wherein
on the carrier strip (2) at regular intervals clip fastener elements (3), preferably consisting of plastic material, are fastened, preferably welded on or injection-molded for an attachment of the carrier strip (2) to the lamellae (5) of the slat shutter, and wherein
between each two successive clip fastener elements (3) in a central part of the carrier strip (2) between the clip fastener elements (3), a strip deflector (4) is located, respectively,
characterized in that
each strip deflector (4) comprises a deflector section (8) overlapping the central part and connecting parts (7) provided on both ends of the deflector section (8) connecting the strip deflector (4) with the carrier strip, wherein
at least the deflector section (8) or the entire strip deflector (4) consists of a material with an elastomer shape memory, and wherein
the deflector section (8) in a state free from tensile load comprises a bulged shape, which, in a state of the tilting band (1) built into a slat shutter curtain, is convex inwardly to the lamellae (5), and under tensile load deforms from the shape bulged in a convex manner into a longitudinally extended shape. - The tilting band (1) according to claim 1, characterized in that the deflector section (8) of the strip deflectors (4) in the state free from tensile load is each angled approximately in an L-shaped or V-shaped manner.
- The tilting band (1) according to claim 1 or 2, characterized in that the strip deflectors (4) consist of a synthetic elastomer material.
- The tilting band (1) according to claim 1, 2 or 3, characterized in that the connecting parts (7) of the strip deflectors (4) adjacent to both ends of the deflector section (8) are each formed as a collar (7) surrounding the carrier strip (2).
- The tilting band (1) according to any one of the preceding claims, characterized in that the strip deflectors (4) at least in the area of their connecting parts (7) consist of an injection-moldable plastic material and are injection-molded onto the carrier strip (2).
- The tilting band according to any one of the preceding claims, characterized in that the strip deflectors at least in the area of their connecting parts consist of a plastic material with thermoplastic properties and are welded onto the carrier strip.
- A slat shutter with a curtain comprising lamellae (5), which are passed through by lift tapes applied to a lower curtain end strip, and on both of their longitudinal edges (12, 13) are connected with tilting bands (1), characterized in that the tilting bands (1) are formed according to any one of the preceding claims.
- The slat shutter according to claim 7, characterized in that the lamellae (5) are made of metal and the two longitudinal lamellae edges (12, 13) are each formed by a beading (12, 13), and U-shaped clip pins (6) made from metal with both of their U-shaped legs are each inserted into the attributed beading (12, 13), wherein the clip fastener elements (3) of the tilting bands (1) on one broadside of the carrier strip (2) each comprise a locking groove (10) extending transversely to the carrier strip (2) for a clip pin (6) on the lamellae side with which they are clipped onto the clip pins (6).
- The slat shutter according to claim 7 or 8, characterized in that the lamellae (5) on at least one of their beadings (12, 13) are squeezed in the area of the attributed tilting bands.
- The slat shutter according to claim 8 or 9, characterized in that the lamellae (5) comprise a curved cross-sectional shape with two or three bulges, wherein the connecting parts (7) of the strip deflectors (4) formed as collars (7) in their width but also in their height are small enough so that they fit into the space defined by the beadings (12, 13) between two lamellae (5) arranged on top of each other in the contracted slat shutter curtain without the stack height increasing as a result.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012001715A DE102012001715A1 (en) | 2012-01-31 | 2012-01-31 | External blind and turning tape for it |
Publications (4)
Publication Number | Publication Date |
---|---|
EP2716856A2 EP2716856A2 (en) | 2014-04-09 |
EP2716856A8 EP2716856A8 (en) | 2014-05-28 |
EP2716856A3 EP2716856A3 (en) | 2016-09-28 |
EP2716856B1 true EP2716856B1 (en) | 2017-08-30 |
Family
ID=47681588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13000252.0A Active EP2716856B1 (en) | 2012-01-31 | 2013-01-18 | Slat shutter and its tilting band |
Country Status (2)
Country | Link |
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EP (1) | EP2716856B1 (en) |
DE (1) | DE102012001715A1 (en) |
Families Citing this family (2)
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 |
Family Cites Families (9)
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 |
SE345493B (en) * | 1970-05-21 | 1972-05-29 | Perma Syst Ab | |
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 |
-
2012
- 2012-01-31 DE DE102012001715A patent/DE102012001715A1/en not_active Withdrawn
-
2013
- 2013-01-18 EP EP13000252.0A patent/EP2716856B1/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP2716856A2 (en) | 2014-04-09 |
DE102012001715A1 (en) | 2013-08-01 |
EP2716856A3 (en) | 2016-09-28 |
EP2716856A8 (en) | 2014-05-28 |
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