EP0335177B1 - Arrangement for darkening windows - Google Patents

Arrangement for darkening windows Download PDF

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Publication number
EP0335177B1
EP0335177B1 EP89104616A EP89104616A EP0335177B1 EP 0335177 B1 EP0335177 B1 EP 0335177B1 EP 89104616 A EP89104616 A EP 89104616A EP 89104616 A EP89104616 A EP 89104616A EP 0335177 B1 EP0335177 B1 EP 0335177B1
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EP
European Patent Office
Prior art keywords
roller
rollers
fabric
another
window
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EP89104616A
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German (de)
French (fr)
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EP0335177A2 (en
EP0335177A3 (en
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Philipp Tussinger
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40Roller blinds

Definitions

  • the invention relates to a device for darkening a window, having a plurality of rotatable rollers which are connected to one another in a gearbox manner, a darkening web covering only a part of the window being able to be wound onto each roller.
  • roller blinds in particular snap roller blinds, in which a fabric web can be wound around a rotatable roller. It can be pulled on the fabric, the fabric being unwound from the roller, so that a window can be partially or completely darkened as a result.
  • a snap roller blind has a mechanism for engaging and disengaging or for locking the extended fabric web in a desired position against the tension of a spring device in the roller, preferably an elastic band.
  • the covering material of the roll is tangled, that is, it can wind up laterally on the roller. A light-tight closure is also not possible.
  • blinds are known, or the like in various ways, for example by pulling cords. can be driven. Between-glass blinds, which are arranged between two glass panes, are also known. Cumbersome operations are required here. With ball chain roller blinds, chains can jump out or get tangled. The chain always hangs open and can interfere with the window opening. Even such a blind does not close light-tight. The same applies to a cord deflecting blind. This is a very bulky system that requires complicated installation and complex operation. The cord can jam, slip, run wrong, so that the blind does not close light-tight. The latter also applies to vertical blinds, which require complicated, expensive mechanics and complicated operation. Such slats are also difficult to clean. Furthermore, roller shutters that can be attached to the outside of a window, which are not to be taken into account here, are known, so-called roller blinds, which enable complicated retrofitting, are difficult, are noisy during operation, even if they also allow adequate darkening.
  • GB-A-12 35 087 describes a room divider which is formed from a plurality of fabric webs which are arranged next to one another and extendable parallel to one another and which can be wound on rollers which are connected to one another by gears and have the same axis extension.
  • the rollers are arranged offset to one another to ensure an overlap of the fabric web on otherwise created edges.
  • the individual strips of fabric hang freely and are only held taut by a weight in the area of their lower edge.
  • the use of this device in windows is not recommended, since the offset of adjacent rollers would either exceed the usual thickness of windows or would limit the available space for a given outer frame.
  • the object of the invention is to create a device of the generic type which, with a simple design, enables good, continuously variable darkening while ensuring simple operation and great functional reliability.
  • the stated object is achieved with a device of the type mentioned at the outset, which has the characterizing part of claim 1.
  • diametrically opposed rollers can be rotated in opposite directions to one another and in particular adjacent rollers are perpendicular to one another.
  • the transmission ratio between mutually perpendicular adjacent rollers can be 1: 1, it is preferably provided that the number of teeth on rollers arranged on gears behave to one another essentially as the length ratios of the corresponding rollers.
  • the partial covering of the window by the fabric parts which can be rolled up on a roller and which only give a complete covering of the window in their entirety takes place in an advantageous manner in that a drive is connected to at least one roller, wherein furthermore, the webs of fabric that can be wound on a roller essentially have the shape of right-angled triangles.
  • the fabric sheets in a square window have the shape of isosceles triangles and that the fabric sheets have a long side edge perpendicular to their fastening edge with the roller, a short side edge parallel to this and a free, oblique edge connecting them.
  • the invention provides a darkening device which is easy to install and operate, and which also functions permanently and without errors, even if the device is subjected to relatively frequent use.
  • the gear mechanism can be realized maintenance-free, for example by self-lubricating bevel gears, in particular made of plastic.
  • the drive can take place manually via a crank, a cord pull or also automatically by means of an electric motor, the drive devices also acting on the bevel gears of the device via bevel gears in the special embodiment.
  • the fabric sheets can in particular be connected to the rollers in such a way that they can be removed so that they can be easily cleaned.
  • the sheet material can be fabric or plastic. It can be either transparent, semi-transparent or opaque.
  • the frame holding and covering the device according to the invention is preferably made of light metal and accommodates the transmission devices.
  • the device according to the invention can be retrofitted to a window frame on the inside of the same or can be provided for window construction. It can be used as an intermediate glass device by being placed between two panes of a window.
  • a further preferred embodiment provides that a light sensor is provided, by means of which an electric drive motor is controlled. Due to the design according to the invention, the blinds can be opened or closed quickly or slowly, without fear of mutual damage or impairment. Darkening can be done in the smallest steps.
  • the device 1 has four rollers 2 arranged at right angles to one another, which are rotatably mounted in the region of their end faces 3 via a stationary bearing 4. Rollers 2 adjoining one another with end faces are via bevel gearwheels 6 geared together.
  • the arrangement of the bevel gears 6 is such that they are directed outwards with their conical, toothed surfaces. This ensures that two diametrically opposed rollers are rotated in opposite directions when rotating, as can be seen in Figure 3. 3, the left roller is rotated clockwise, the right roller of this figure is rotated counterclockwise.
  • roller and gear mechanism as shown in FIG. 1, is enclosed by a frame-shaped housing 7 with a U-shaped cross section of the individual frame parts that is open towards the inside.
  • rollers 8 are formed in front of the bevel gears, which are limited on the one hand by the large end face 9 of the bevel gear and on the other hand by a disk 11 arranged at a distance from this.
  • the free end of a pull cord 12 is fixed to each roller 8 and can be wound onto the roller 8 in a coil-like manner.
  • Fabric rolls 13 are wound on the rollers 2, which essentially have the shape of a right-angled triangle, which is isosceles in the case of a square window.
  • the fabric webs 13 are connected to the corresponding roller by an inclined edge 14, which extends obliquely to the boundary sides of a window and also the rollers 2, running along the rollers Fastening edge 16 (FIG.
  • a long side edge 17 and a short side edge 18 (FIGS. 4, 5) running parallel to this and also running perpendicular to the fastening edge 16 (FIGS. 4, 5).
  • the pull cord 12 already mentioned runs along the long side edge 17 and is preferably connected to it. To compensate for the winding thicknesses of the fabric web 13 and the cord 12, the latter is preferably elastic and is under tension. At the same time, a cord part could also run along the edge 14 and be connected to it, in order to improve the tightening of this edge when the darkening device is closed.
  • a roller 10 is preferably attached to this, which engages behind a stationary guide rail 15.
  • the roller 10 preferably has a circumferential groove with which it rests on the rail 15 so that it is guided through it in this way (FIG. 3). Instead of the roller 10, a guide slider seated on the guide rail 15 could also be used.
  • the short longitudinal edge 18 of the web 13, which is caused by the design of the gear and spool, is also slightly reinforced, for example by sewing in a cord part 19. Furthermore, in the area in which the short longitudinal edge 18 extends when the web 13 is fully extended, a guide 21 in the form of a guide rail or groove is provided, into which the area of the web 13, which lies immediately behind the thickening 19, is drawn in when the web 13 is extended. As a result, the web 13 is guided stabilized in this area.
  • FIG. 6 shows a crank mechanism 22
  • FIG. 7 shows a cord pull 23
  • FIG. 8 shows a drive with an electric motor 24.
  • the drive 22, 23, 24 is connected to an additional stationary but rotatably mounted bevel gear 26 on one of the bevel gears 6, the drive movement then being transmitted through this and via the rollers 2 to the other rollers. It can continue, although not absolutely necessary, additional locking mechanisms in the form of pawls or the like. be provided for locking the gear device.
  • one of the bevel gears 6 is rotated via one of the drive mechanisms mentioned and the bevel gear 26 connected to it, and, as said, drives the further rollers 2 via the gear mechanism formed by the bevel gears 6.
  • the darkening therefore takes place in the manner shown in FIGS. 1 and 2 from the corners in which the bevel gears are arranged.
  • the darkening web 13 is pulled diagonally in the manner described above from the front of one roller to the rear of the opposite roller (FIG. 3). This ensures that the webs 13 do not interfere with each other, but rather the free tip 31 (FIG. 2) is guided behind the web unwound from the adjacent roller 2 (FIG. 1) until the entire window is then darkened like a screen, as can be seen in FIG. 4, the webs being double-layered at each point in the darkening area.
  • the guide device 31 of FIGS. 9 and 10 has an outwardly directed U-rail 32, in which a hook 33 is screwed in, on the outer leg 34 of which the pull cord 12 engages and which is connected to the free tip of the web 13. In this way, an alternative to the guidance of Figure 3 is created, by which the web 13 is kept taut.

Description

Die Erfindung betrifft eine Vorrichtung zum Abdunkeln eines Fensters, mit mehreren getrieblich miteinander verbundenen drehbaren Walzen, wobei auf jede Walze jeweils eine nur einen Teil des Fensters abdeckende Verdunklungsbahn aufwickelbar ist.The invention relates to a device for darkening a window, having a plurality of rotatable rollers which are connected to one another in a gearbox manner, a darkening web covering only a part of the window being able to be wound onto each roller.

Derartige Vorrichtungen sind in verschiedenartiger Form bekannt. Die Erfindung geht aus von sogenannten Rollos, insbesondere Schnapprollos, bei denen eine Stoffbahn um eine drehbare Walze aufwickelbar ist. Es kann an der Stoffbahn gezogen werden, wobei die Stoffbahn von der Walze abgewickelt wird, so daß hierdurch ein Fenster teilweise oder vollständig zu verdunkeln ist. Ein derartiges Schnapprollo weist eine Mechanik zum Ein- und Ausrasten bzw. zur Arretierung der ausgezogenen Stoffbahn in einer gewünschten Stellung entgegen dem Zug einer Federvorrichtung in der Walze, vorzugsweise einen Gummizug auf. Nachteilig ist hierbei, daß der Bespannstoff der Rolle sich verwikkeln, d.h. seitlich auf der Walze aufwickeln kann. Auch ist ein lichtdichtes Schließen nicht möglich.Devices of this type are known in various forms. The invention is based on so-called roller blinds, in particular snap roller blinds, in which a fabric web can be wound around a rotatable roller. It can be pulled on the fabric, the fabric being unwound from the roller, so that a window can be partially or completely darkened as a result. Such a snap roller blind has a mechanism for engaging and disengaging or for locking the extended fabric web in a desired position against the tension of a spring device in the roller, preferably an elastic band. Disadvantageous is that the covering material of the roll is tangled, that is, it can wind up laterally on the roller. A light-tight closure is also not possible.

Als weitere Verdunklungsvorrichtungen sind Jalousien bekannt, die in verschiedener Weise, beispielsweise durch Schnurzüge od.dgl. angetrieben werden können. Auch Zwischenglas-Jalousien, die zwischen zwei Glasscheiben angeordnet werden, sind bekannt. Hier sind umständliche Bedienungsvorgänge erforderlich. Bei Kugelketten-Rolljalousien können Ketten herausspringen oder sich verheddern. Die Kette hängt immer offen herum und kann beim Fensteröffnen stören. Auch eine solche Jalousie schließt nicht lichtdicht. Ähnliches gilt für eine Schnurumlenk-Jalousie. Dies ist eine sehr sperrige Anlage, die eine umständliche Installation und eine aufwendige Bedienung erfordert. Die Schnur kann verklemmen, verrutschen, kann schief laufen, so daß die Jalousie nicht lichtdicht schließt. Letzteres gilt auch für eine Vertikal-Jalousie, die eine komplizierte teuere Mechanik und eine umständliche Bedienung erfordert. Auch sind derartige Lamellen nur schwer zu reinigen. Weiterhin sind neben außen auf einem Fenster anbringbare Rolläden, die hier nicht weiter zu berücksichtigen sind, sogenannte Rolladen-Jalousien bekannt, die eine komplizierte Nachrüstung ermöglichen, schwer sind, im Betrieb laut sind, wenn sie auch eine hinreichende Abdunklung ermöglichen.As further darkening devices, blinds are known, or the like in various ways, for example by pulling cords. can be driven. Between-glass blinds, which are arranged between two glass panes, are also known. Cumbersome operations are required here. With ball chain roller blinds, chains can jump out or get tangled. The chain always hangs open and can interfere with the window opening. Even such a blind does not close light-tight. The same applies to a cord deflecting blind. This is a very bulky system that requires complicated installation and complex operation. The cord can jam, slip, run wrong, so that the blind does not close light-tight. The latter also applies to vertical blinds, which require complicated, expensive mechanics and complicated operation. Such slats are also difficult to clean. Furthermore, roller shutters that can be attached to the outside of a window, which are not to be taken into account here, are known, so-called roller blinds, which enable complicated retrofitting, are difficult, are noisy during operation, even if they also allow adequate darkening.

Die GB-A-12 35 087 beschreibt einen Raumteiler, der aus mehreren nebeneinander angeordneten und parallel zueinander ausziehbaren Stoffbahnen gebildet ist, welche auf getrieblich miteinander verbundenen Walzen mit gleicher Achsenerstreckung aufwickelbar sind. Die Walzen sind versetzt zueinander angeordnet, um eine Überlappung der Stoffbahn an ansonsten entstehenden Stoßkanten zu gewährleisten. Die einzelnen Stoffbahnen hängen frei herunter und werden lediglich durch ein Gewicht im Bereich ihrer unteren Kante straff gehalten. Ein Einsatz dieser Vorrichtung bei Fenstern empfiehlt sich nicht, da durch den Versatz jeweils benachbarter Walzen entweder die übliche Stärke von Fenstern überschritten oder aber bei vorgegebenen Außenrahmen die zur Verfügung stehende freie Fläche begrenzt würde.GB-A-12 35 087 describes a room divider which is formed from a plurality of fabric webs which are arranged next to one another and extendable parallel to one another and which can be wound on rollers which are connected to one another by gears and have the same axis extension. The rollers are arranged offset to one another to ensure an overlap of the fabric web on otherwise created edges. The individual strips of fabric hang freely and are only held taut by a weight in the area of their lower edge. The use of this device in windows is not recommended, since the offset of adjacent rollers would either exceed the usual thickness of windows or would limit the available space for a given outer frame.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der gattungsgemäßen Art zu schaffen, die bei einfacher Ausgestaltung eine gute, stufenlos veränderbare Verdunklung unter Gewährleistung einfacher Bedienung und großer Funktionssicherheit ermöglicht.The object of the invention is to create a device of the generic type which, with a simple design, enables good, continuously variable darkening while ensuring simple operation and great functional reliability.

Erfindungsgemäß wird die genannte Aufgabe mit einer Vorrichtung der eingangs genannten Art gelöst, welche das Kennzeichen des Anspruchs 1 aufweist.According to the invention, the stated object is achieved with a device of the type mentioned at the outset, which has the characterizing part of claim 1.

In Weiterbildung ist vorgesehen, daß diametral gegenüberliegende Walzen gegensinnig zueinander verdrehbar sind und insbesondere benachbarte Walzen zueinander senkrecht stehen.In a further development it is provided that diametrically opposed rollers can be rotated in opposite directions to one another and in particular adjacent rollers are perpendicular to one another.

Während bei rein quadratischen Fenstern das Übersetzungsverhältnis zwischen aufeinander senkrecht stehenden, benachbarten Walzen 1:1 betragen kann, ist in bevorzugter Weise vorgesehen, daß die Zahnzahlen an Walzen angeordneter Zahnräder sich zueinander im wesentlichen wie die Längenverhältnisse der entsprechenden Walzen verhalten.While in purely square windows the transmission ratio between mutually perpendicular adjacent rollers can be 1: 1, it is preferably provided that the number of teeth on rollers arranged on gears behave to one another essentially as the length ratios of the corresponding rollers.

Die teilweise Überdeckung des Fensters durch jeweils die auf einer Walze aufrollbaren Stoffteile, die erst in ihrer Gesamtheit eine vollständige Überdeckung des Fensters ergeben, erfolgt in vorteilhafter Weise dadurch, daß mit mindestens einer Walze ein Antrieb verbunden ist, wobei weiterhin die auf einer Walze aufwickelbaren Stoffbahnen im wesentlichen die Form von rechtwinkligen Dreiecken aufweisen.The partial covering of the window by the fabric parts which can be rolled up on a roller and which only give a complete covering of the window in their entirety takes place in an advantageous manner in that a drive is connected to at least one roller, wherein furthermore, the webs of fabric that can be wound on a roller essentially have the shape of right-angled triangles.

In Weiterbildung ist vorgesehen, daß bei einem quadratischen Fenster die Stoffbahnen die Form von gleichschenkligen Dreiecken aufweisen und daß die Stoffbahnen eine zu ihrer Befestigungskante mit der Walze senkrechte lange Seitenkante, eine zu dieser parallele kurze Seitenkante und eine diese verbindende freie, schräg verlaufende Kante aufweisen.In a further development it is provided that in a square window the fabric sheets have the shape of isosceles triangles and that the fabric sheets have a long side edge perpendicular to their fastening edge with the roller, a short side edge parallel to this and a free, oblique edge connecting them.

Weitere Fortbildungen sehen vor, daß das freie Ende der an einer Walze festgelegten dreieckigen Stoffbahn mit einer Zugschnur verbunden ist, die auf einer zu der genannten Walze diametral gegenüberliegenden Walze aufwickelbar ist und daß die kurze Seitenkante der Stoffbahn nach Abwickeln von der zugehörigen Walze in einer Führung führbar ist.Further developments provide that the free end of the triangular web of material fixed to a roller is connected to a pull cord which can be wound on a roller diametrically opposite to said roller and that the short side edge of the web of material after unwinding from the associated roller in a guide is feasible.

Die Erfindung gewährleistet eine Abdunklungsvorrichtung, die bequem zu installieren und zu bedienen ist, darüberhinaus dauerhaft und fehlerfrei funktioniert, selbst wenn die Vorrichtung einer relativ häufigen Benutzung ausgesetzt ist. Der Getriebemechanismus läßt sich wartungsfrei, beispielsweise durch selbstschmierende Kegelräder, insbesondere aus Kunststoff, verwirklichen. Der Antrieb kann manuell über eine Kurbel, einen Schnurzug oder auch automatisch mittels eines Elektromotors erfolgen, wobei die Antriebseinrichtungen ebenfalls über Kegelräder in der speziellen Ausgestaltung auf die Kegelräder der Vorrichtung wirken. Die Stoffbahnen können insbesondere mit den Walzen derart verbunden sein, daß sie abnehmbar sind, so daß sie leicht gereinigt werden können.The invention provides a darkening device which is easy to install and operate, and which also functions permanently and without errors, even if the device is subjected to relatively frequent use. The gear mechanism can be realized maintenance-free, for example by self-lubricating bevel gears, in particular made of plastic. The drive can take place manually via a crank, a cord pull or also automatically by means of an electric motor, the drive devices also acting on the bevel gears of the device via bevel gears in the special embodiment. The fabric sheets can in particular be connected to the rollers in such a way that they can be removed so that they can be easily cleaned.

Das Bahnenmaterial kann Gewebestoff oder auch Kunststoff sein. Es kann wahlweise transparent, halbtransparent oder lichtundurchlässig sein. Der die erfindungsgemäße Vorrichtung haltende und abdeckende Rahmen besteht vorzugsweise aus Leichtmetall und nimmt die Getriebeeinrichtungen auf. Die erfindungsgemäße Vorrichtung kann auf einen Fensterrahmen auf der Innenseite desselben nachträglich aufgebracht oder gleich beim Fensterbau vorgesehen werden. Sie kann als Zwischenglaseinrichtung eingesetzt werden, indem sie zwischen zwei Scheiben eines Fensters angeordnet wird. Eine weitere bevorzugte Ausgestaltung sieht vor, daß ein Lichtsensor vorgesehen ist, mittels dessen ein elektrischer Antriebsmotor gesteuert wird. Aufgrund der erfindungsgemäßen Ausgestaltung können die Rollobahnen schnell oder auch langsam geöffnet und geschlossen werden, ohne daß eine gegenseitige Beschädigung oder Beeinträchtigung zu befürchten ist. Eine Abdunklung kann in kleinsten Schritten erfolgen. Ein interessanter, zusätzlicher Effekt ergibt sich bei weitgehendem, aber nicht vollständigem Schließen der erfindungsgemäßen Vorrichtung durch den Lochblendeneffekt, wodurch durch eine verbleibende kleine Öffnung auf eine Innenwand des durch eine erfindungsgemäße Vorrichtung weitgehend abgedunkelten Raumes ein Bild der Umgebung projiziert wird.The sheet material can be fabric or plastic. It can be either transparent, semi-transparent or opaque. The frame holding and covering the device according to the invention is preferably made of light metal and accommodates the transmission devices. The device according to the invention can be retrofitted to a window frame on the inside of the same or can be provided for window construction. It can be used as an intermediate glass device by being placed between two panes of a window. A further preferred embodiment provides that a light sensor is provided, by means of which an electric drive motor is controlled. Due to the design according to the invention, the blinds can be opened or closed quickly or slowly, without fear of mutual damage or impairment. Darkening can be done in the smallest steps. An interesting, additional effect arises when the device according to the invention is largely but not completely closed by the pinhole effect, as a result of which a picture of the surroundings is projected through a remaining small opening onto an inner wall of the room largely darkened by a device according to the invention.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen und aus der nachfolgenden Beschreibung, in der Ausführungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnung im einzelnen erläutert sind. Dabei zeigt:

Figur 1
Eine erste Ausführungsform der erfindungsgemäßen Vorrichtung mit teilweise weggeschnittenem Rahmen;
Figur 2
eine Darstellung des Getriebemechanismus der erfindungsgemäßen Vorrichtung der Figur 1;
Figur 3
eine Darstellung der Führung der Verdunklungsbahn und der Zugschnur über die Walzen;
Figur 4
eine weitere Darstellung der erfindungsgemäßen Vorrichtung im völlig abgedunkelten Zustand;
Figur 5
eine perspektivische Darstellung der Führung der kurzen Kante;
Figur 6
eine schematische Darstellung eines Antriebs mittels Kurbel;
Figur 7
eine schematische Darstellung eines Antriebs mittels eines Schnurzugs;
Figur 8
eine schematische Darstellung eines Elektroantriebs;
Figur 9
eine weitere Teildarstellung einer zur Führung der Fig.3 alternativen Führung; und
Figur 10
einen Schnitt entsprechend X-X der Fig.9.
Further advantages and features of the invention result from the claims and from the following description in which exemplary embodiments of the invention are explained in detail with reference to the drawing. It shows:
Figure 1
A first embodiment of the device according to the invention with the frame partially cut away;
Figure 2
a representation of the gear mechanism of the inventive device of Figure 1;
Figure 3
a representation of the leadership of the blackout and the pull cord over the rollers;
Figure 4
a further representation of the device according to the invention in the completely darkened state;
Figure 5
a perspective view of the leadership of the short edge;
Figure 6
a schematic representation of a drive by means of a crank;
Figure 7
a schematic representation of a drive by means of a cord;
Figure 8
a schematic representation of an electric drive;
Figure 9
a further partial representation of an alternative to the guidance of Figure 3 guidance; and
Figure 10
a section corresponding to XX of Fig.9.

Die erfindungsgemäße Vorrichtung 1 weist im dargestellten Ausführungsbeispiel vier rechtwinklig zueinander angeordnete Walzen 2 auf, die im Bereich ihrer Stirnseiten 3 über ein stationäres Lager 4 drehbar gelagert sind. Mit Stirnseiten aneinander angrenzende Walzen 2 sind über Kegelzahnräder 6 getrieblich miteinander verbunden. Im bevorzugten dargestellten Ausführungsbeispiel ist die Anordnung der Kegelräder 6 derart getroffen, daß sie mit ihren kegligen, gezähnten Flächen nach außen gerichtet sind. Hierdurch wird erreicht, daß zwei einander diametral gegenüberliegende Walzen bei Drehung gegensinnig gegeneinander verdreht werden, wie dies der Figur 3 entnehmbar ist. Während bei der Darstellung der Figur 3 die linke Walze im Uhrzeigersinn verdreht wird, wird die rechte Walze dieser Figur entgegen dem Uhrzeigersinn gedreht. Dies bedingt, daß die Bewegungsrichtung der Bahn nicht parallel durch die durch die Achsen der Walzen 2 bestimmte Ebene erfolgt, sondern diese Ebene schneidet - eine Bahn, die eine Walze "vorne" verläßt, wird zur "Rückseite" der diametral gegenüberliegenden Walze geführt - wie dies den Figuren 1 bis 3 entnehmbar ist.In the exemplary embodiment shown, the device 1 according to the invention has four rollers 2 arranged at right angles to one another, which are rotatably mounted in the region of their end faces 3 via a stationary bearing 4. Rollers 2 adjoining one another with end faces are via bevel gearwheels 6 geared together. In the preferred exemplary embodiment shown, the arrangement of the bevel gears 6 is such that they are directed outwards with their conical, toothed surfaces. This ensures that two diametrically opposed rollers are rotated in opposite directions when rotating, as can be seen in Figure 3. 3, the left roller is rotated clockwise, the right roller of this figure is rotated counterclockwise. This means that the direction of movement of the web is not parallel through the plane determined by the axes of the rollers 2, but intersects this plane - a web that leaves a roller "in front" is guided to the "back" of the diametrically opposite roller - as this can be seen in Figures 1 to 3.

Der Walzen- und Getriebemechanismus ist, wie dies in Figur 1 dargestellt ist, durch ein rahmenförmiges Gehäuse 7 mit nach innen hin geöffnetem U-förmigen Querschnitt der einzelnen Rahmenteile eingeschlossen.The roller and gear mechanism, as shown in FIG. 1, is enclosed by a frame-shaped housing 7 with a U-shaped cross section of the individual frame parts that is open towards the inside.

Im Bereich der Enden der Walzen 2 sind vor den Kegelrädern 6 Rollen 8 gebildet, die einerseits durch die große Stirnfläche 9 des Kegelrads und andererseits durch eine mit Abstand zu dieser angeordnete Scheibe 11 begrenzt sind. An jeder Rolle 8 ist das freie Ende einer Zugschnur 12 festgelegt, die auf die Rolle 8 spulenartig aufwickelbar ist. Auf den Walzen 2 sind Stoffbahnen 13 aufgewickelt, die im wesentlichen die Form eines rechtwinkligen Dreiecks, das im Falle eines quadratischen Fensters gleichschenklig ist, aufweisen. Die Stoffbahnen 13 werden durch eine Schrägkante 14, die schräg zu den Begrenzungsseiten eines Fensters und auch den Walzen 2 verläuft, eine entlang der Walzen verlaufende und mit der entsprechenden Walze verbundene Befestigungskante 16 (Fig.4), eine lange Seitenkante 17 und eine parallel zu dieser und ebenfalls wie diese senkrecht zur Befestigungskante 16 verlaufende kurze Seitenkante 18 (Figuren 4,5) begrenzt. Die schon erwähnte Zugschnur 12 verläuft entlang der langen Seitenkante 17 und ist vorzugsweise mit dieser verbunden. Zum Ausgleich der Wickelstärken von Stoffbahn 13 und Schnur 12 ist letztere vorzugsweise elastisch und steht unter Spannung. Gleichzeitig könnte ein Schnurteil auch entlang der Kante 14 verlaufen und mit dieser verbunden sein, um die Straffung dieser Kante beim Schließen der Verdunklungseinrichtung zu verbessern. Zur Führung, insbesondere der Seitenkante 17 der Bahn 13 ist an dieser vorzugsweise eine Rolle 10 angebracht, die eine stationäre Führungsschiene 15 hintergreift. Die Rolle 10 weist vorzugsweise eine Umfangsnut auf, mit der sie auf der Schiene 15 aufsitzt, so daß sie derart durch diese geführt wird (Fig. 3). Statt der Rolle 10 könnte auch ein auf der Führungsschiene 15 aufsitzender Führungsgleiter verwendet werden.In the area of the ends of the rollers 2 6 rollers 8 are formed in front of the bevel gears, which are limited on the one hand by the large end face 9 of the bevel gear and on the other hand by a disk 11 arranged at a distance from this. The free end of a pull cord 12 is fixed to each roller 8 and can be wound onto the roller 8 in a coil-like manner. Fabric rolls 13 are wound on the rollers 2, which essentially have the shape of a right-angled triangle, which is isosceles in the case of a square window. The fabric webs 13 are connected to the corresponding roller by an inclined edge 14, which extends obliquely to the boundary sides of a window and also the rollers 2, running along the rollers Fastening edge 16 (FIG. 4), a long side edge 17 and a short side edge 18 (FIGS. 4, 5) running parallel to this and also running perpendicular to the fastening edge 16 (FIGS. 4, 5). The pull cord 12 already mentioned runs along the long side edge 17 and is preferably connected to it. To compensate for the winding thicknesses of the fabric web 13 and the cord 12, the latter is preferably elastic and is under tension. At the same time, a cord part could also run along the edge 14 and be connected to it, in order to improve the tightening of this edge when the darkening device is closed. For guidance, in particular the side edge 17 of the web 13, a roller 10 is preferably attached to this, which engages behind a stationary guide rail 15. The roller 10 preferably has a circumferential groove with which it rests on the rail 15 so that it is guided through it in this way (FIG. 3). Instead of the roller 10, a guide slider seated on the guide rail 15 could also be used.

Zur Straffung der vollständig vollzogenen Verdunklung ist weiterhin die kurze Längskante 18 der Bahn 13, die durch die Getriebe- und Spulenausbildung bedingt ist, leicht verstärkt ausgebildet, beispielsweise durch Einnähen eines Schnurteils 19. Weiterhin ist in dem Bereich, in dem sich die kurze Längskante 18 erstreckt, wenn die Bahn 13 vollständig ausgezogen ist, eine Führung 21 in Form einer Führungsschiene oder -nut vorgesehen, in welche der Bereich der Bahn 13, der unmittelbar hinter der Verdickung 19 liegt, beim Ausfahren der Bahn 13 hineingezogen wird. Hierdurch wird die Bahn 13 auch in diesem Bereich stabilisiert geführt.In order to tighten the completely completed darkening, the short longitudinal edge 18 of the web 13, which is caused by the design of the gear and spool, is also slightly reinforced, for example by sewing in a cord part 19. Furthermore, in the area in which the short longitudinal edge 18 extends when the web 13 is fully extended, a guide 21 in the form of a guide rail or groove is provided, into which the area of the web 13, which lies immediately behind the thickening 19, is drawn in when the web 13 is extended. As a result, the web 13 is guided stabilized in this area.

Als Antrieb der erfindungsgemäßen Vorrichtung können verschiedene Antriebsmechanismen vorgesehen sein. So ist in der Figur 6 ein Kurbelmechanismus 22 dargestellt, während die Figur 7 einen Schnurzug 23 und die Figur 8 einen Antrieb mit einem Elektromotor 24 zeigt. In allen drei Fällen wird der Antrieb 22,23,24 über ein zusätzliches stationär, aber drehbar gelagertes Kegelrad 26 auf eines der Kegelräder 6, wobei die Antriebsbewegung dann durch diese und über die Walzen 2 jeweils auf die anderen Walzen übertragen wird. Es können weiterhin, obwohl nicht unbedingt notwendig, zusätzliche Rastmechanismen in Form von Klinken od.dgl. zur Arretierung der Getriebeeinrichtung vorgesehen sein.Various drive mechanisms can be provided to drive the device according to the invention. A crank mechanism 22 is shown in FIG. 6, while FIG. 7 shows a cord pull 23 and FIG. 8 shows a drive with an electric motor 24. In all three cases, the drive 22, 23, 24 is connected to an additional stationary but rotatably mounted bevel gear 26 on one of the bevel gears 6, the drive movement then being transmitted through this and via the rollers 2 to the other rollers. It can continue, although not absolutely necessary, additional locking mechanisms in the form of pawls or the like. be provided for locking the gear device.

Zur Bedienung der erfindungsgemäßen Vorrichtung 1 wird über einen der genannten Antriebsmechanismen und dem mit diesem verbundenen Kegelrad 26 eines der Kegelräder 6 in Drehung versetzt und dieses treibt, wie gesagt, über den durch die Kegelräder 6 gebildeten Getriebemechanismus die weiteren Walzen 2 an. Diese ziehen einerseits die Zugschnur 12 einer Verdunklungsbahn 13 von der jeweils diagonal gegenüberliegenden Walze ab, während diese Walze die Verdunklungsbahn 13 freigibt. Die Verdunklung erfolgt daher in der aus den Figuren 1 und 2 ersichtlichen Weise von den Ecken her, in denen die Kegelräder angeordnet sind. Der Zug der Verdunklungsbahn 13 geschieht in der oben näher beschriebenen Weise diagonal von der Vorderseite einer Walze zur Rückseite der gegenüberliegenden Walze (Figur 3). Hierdurch wird erreicht, daß die Bahnen 13 sich nicht gegenseitig stören, sondern vielmehr die freie Spitze 31 (Fig.2) hinter die von der benachbarten Walze 2 abgewickelte Bahn geführt wird (Fig.1), bis dann das gesamte Fenster blendenartig abgedunkelt ist, wie dies der Figur 4 entnehmbar ist, wobei an jeder Stelle des Abdunklungsbereichs die Bahnen doppellagig liegen.To operate the device 1 according to the invention, one of the bevel gears 6 is rotated via one of the drive mechanisms mentioned and the bevel gear 26 connected to it, and, as said, drives the further rollers 2 via the gear mechanism formed by the bevel gears 6. On the one hand, these pull the pull cord 12 of a darkening web 13 from the diagonally opposite roller, while this roller releases the darkening web 13. The darkening therefore takes place in the manner shown in FIGS. 1 and 2 from the corners in which the bevel gears are arranged. The darkening web 13 is pulled diagonally in the manner described above from the front of one roller to the rear of the opposite roller (FIG. 3). This ensures that the webs 13 do not interfere with each other, but rather the free tip 31 (FIG. 2) is guided behind the web unwound from the adjacent roller 2 (FIG. 1) until the entire window is then darkened like a screen, as can be seen in FIG. 4, the webs being double-layered at each point in the darkening area.

Die Führungseinrichtung 31 der Figuren 9 und 10 weist eine nach außen gerichtete U-Schiene 32 auf, in der ein Haken 33 eingedreht ist, an dessen äußerem Schenkel 34 die Zugschnur 12 angreift und der mit der freien Spitze der Bahn 13 verbunden ist. Derart wird eine zur Führung der Fig.3 alternative Führung geschaffen, durch welche die Bahn 13 straff gehalten wird.The guide device 31 of FIGS. 9 and 10 has an outwardly directed U-rail 32, in which a hook 33 is screwed in, on the outer leg 34 of which the pull cord 12 engages and which is connected to the free tip of the web 13. In this way, an alternative to the guidance of Figure 3 is created, by which the web 13 is kept taut.

Während die dargestellte Ausführungsform zum Aufsetzen auf der Innenseite eines Fensters mit dem Rahmen 7 ausgebildet ist, kann auch eine Ausgestaltung zur Anordnung zwischen zwei Scheiben eines Fensters vorgesehen sein.While the embodiment shown is designed to be placed on the inside of a window with the frame 7, a configuration for arrangement between two panes of a window can also be provided.

Claims (14)

  1. Apparatus for darkening a window with several drivewise interconnected, rotary rollers (2) and onto each roller (2) can be wound only a part of the window-covering darkening fabric (13), characterized in that adjacent rollers (2) are arranged at an angle to one another and that the rollers (2) adjacent to one another by their end faces are drivewise interconnected by bevel gears (6).
  2. Apparatus according to claim 1, characterized in that diametrically facing rollers are rotatable in an opposite direction to one another.
  3. Apparatus according to claims 1 or 2, characterized in that adjacent rollers (2) are perpendicular to one another.
  4. Apparatus according to one of the claims 1 to 3, characterized in that the number of teeth of gears located on the rollers (2) behave with respect to one another in substantially the same way as the aspect ratios of the corresponding rollers.
  5. Apparatus according to one of the preceding claims, characterized in that a drive (22,23,24) is connected to at least one roller (2).
  6. Apparatus according to one of the preceding claims, characterized in that the fabric webs (13) which can be wound onto a roller (2) substantially have the shape of right angled triangles.
  7. Apparatus according to claim 6, characterized in that in the case of a square window the fabric webs are shaped like isosceles triangles.
  8. Apparatus according to one of the preceding claims, characterized in that the fabric webs (13) have a long lateral edge (17) perpendicular to the fastening edge thereof to the roller (2), a short lateral edge (18) parallel thereto and a linking, free, sloping edge (14).
  9. Apparatus according to one of the claims 1 to 8, characterized in that the free end of a triangular fabric web fixed to a roller is connected to a pull cord (12), which can be wound onto a pulley (8) diametrically facing said roller.
  10. Apparatus according to claim 8, characterized in that the cord (12) is elastic.
  11. Apparatus according to one of the preceding claims, characterized by pulleys (10) running on guide rails (15) and connected to the lateral edge (17) of the fabric webs (13) which can be unwound from the roller (2).
  12. Apparatus according to one of the claims 1 to 10, characterized by slides (33) sliding on guide rails (32) and connected to the lateral edge (17) of the fabric webs (13) which can be unwound from the roller (2).
  13. Apparatus according to one of the claims 1 to 12, characterized in that the short lateral side (18) of the fabric web (13) can be guided in a guide (21) after unwinding from the associated roller (2).
  14. Apparatus according to one of the claims 1 to 13, characterized by a U-rail (32), in which engages a hook (33), which is connected to the fabric web (13) and a pull cord (12).
EP89104616A 1988-03-26 1989-03-15 Arrangement for darkening windows Expired - Lifetime EP0335177B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104616T ATE86354T1 (en) 1988-03-26 1989-03-15 DEVICE FOR DARKING WINDOWS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3810352 1988-03-26
DE3810352 1988-03-26
DE3836595A DE3836595A1 (en) 1988-03-26 1988-10-27 DEVICE FOR DARKING OUT WINDOWS
DE3836595 1988-10-27

Publications (3)

Publication Number Publication Date
EP0335177A2 EP0335177A2 (en) 1989-10-04
EP0335177A3 EP0335177A3 (en) 1990-10-31
EP0335177B1 true EP0335177B1 (en) 1993-03-03

Family

ID=25866435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104616A Expired - Lifetime EP0335177B1 (en) 1988-03-26 1989-03-15 Arrangement for darkening windows

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EP (1) EP0335177B1 (en)
DE (2) DE3836595A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10041540A1 (en) * 2000-01-20 2001-07-26 Michael Mayr Insulating glass pane with an integrated roller blind device in the hermetically sealed intermediate space between two individual glass panes comprises a winding body fixed to the roller blind and arranged on a rotating axis
DE10232536B4 (en) 2002-07-18 2004-09-30 Philipp Tussinger net device
US7624784B2 (en) 2006-04-28 2009-12-01 Hunter Douglas Inc. Segmented roll up covering for architectural openings
KR100659654B1 (en) * 2006-05-25 2006-12-21 (주)상지엔지니어링건축사사무소 Structure of improved window for building
CN104632064B (en) * 2015-01-30 2016-06-01 福建固美金属有限公司 A kind of roller shutter type window
CN105715188B (en) * 2015-01-30 2017-08-15 福建固美金属有限公司 A kind of method of switching of tow-way shutter window

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870831A (en) * 1955-06-15 1959-01-27 Peselnick Herman Multipanel windows
CH348256A (en) * 1957-03-22 1960-08-15 Francisca Sagaro Giron Jose Sa Device for varying the amount of light passing through a bay
GB1235087A (en) * 1969-10-24 1971-06-09 Kuss & Co R L Space divider
CA1105753A (en) * 1978-01-25 1981-07-28 James G. Pierson Light transmission control device

Also Published As

Publication number Publication date
EP0335177A2 (en) 1989-10-04
DE3836595A1 (en) 1989-10-12
DE58903625D1 (en) 1993-04-08
EP0335177A3 (en) 1990-10-31

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