CH687549A5

CH687549A5 - Translucent facade component used in construction

Info

Publication number: CH687549A5
Application number: CH01521/94A
Authority: CH
Inventors: Felix Knobel; Erich Stoeckli; Peter Jucker
Original assignee: Schweizer Ag E
Priority date: 1994-05-17
Filing date: 1994-05-17
Publication date: 1996-12-31

Abstract

The component comprises transparent panes (2) whose flanges (5) extend towards each other and are joined together. Between them is a filler body (3) of transparent heat-insulating material, through which passages (8) run at right angles to the main surfaces (4) of the panes. The body can be clear of the main surface of one of the panes, while bearing against that of the other. The body can be divided into several sections in the lengthwise direction of the panes, these being held apart by a transverse support fixed in connecting ribs.

Description

       

  
 



  Lichtdurchlässige Fassadenelemente als transparente Wärmedämmung sind z.B. in der Form von Fenstern bekannt. In Treppenhäusern oder dergleichen wird oft nicht eine klare Durchsicht, sondern nur die Beleuchtung durch Tageslicht verlangt. Zu diesem Zweck sind auch Glasbausteine erhältlich, welche direkt eingemauert werden. Diese Glasbausteine isolieren allerdings schlecht, sodass sie in neuerer Zeit weniger verwendet werden. 



  Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein lichtdurchlässiges Fassadenelement anzugeben, das eine diffuse Tageslichtbeleuchtung bei hohem Wärmedämmwert ermöglicht. Diese Aufgabe wird durch die Merkmalskombination des Anspruches 1 gelöst. 



  Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnungen erläutert. Darin zeigt: 
 
   Fig. 1 einen Querschnitt durch zwei Fassadenelemente, 
   Fig. 2 einen Längsschnitt durch ein Element, 
   Fig. 3 einen Vertikalschnitt durch zwei an einem Mauerwerk montierte Elemente, 
   Fig. 4 ein Fassadenelement mit Überhitzungsschutz, und 
   Fig. 5 einen Querschnitt durch eine zweite Ausführungsform. 
 



  Das Fassadenelement 1 besteht aus zwei im Querschnitt U-förmigen Glasprofilscheiben 2 und einem Füllkörper 3 aus einer transparenten Wärmedämmung. Die verglichen mit den zueinander parallelen Grossflächen 4 der Scheiben 2 kurzen, einander zugewandten und miteinander fluchtenden Schenkel 5 der Scheiben 2 sind miteinander durch Verbindungs-Hohlprofile 6 aus Kunststoff verbunden, z.B. mittels doppelseitiger Klebbänder 7. Der Füllkörper 3 hat durchgehende, senkrecht zu den Grossflächen 4 verlaufende Kanäle 8 und besteht z.B. aus aufeinandergeschichteten und miteinander verbundenen, engen, transparenten, dünnwandigen Röhrchen oder aus einer Waben- oder Rasterstruktur aus transparentem, dünnwandigem Kunststoff. Auf der Rückseite liegt der Füllkörper 3 an der Grossfläche 4 an, um die Wärmeübertragung durch Konvektion zu verhindern.

  Auf der Vorderseite kann demgegenüber ein Zwischenraum 9 zwischen Füllkörper 3 und Grossfläche 4 bestehen, um allenfalls im Element enthaltenen Wasserdampf durch diesen Zwischenraum nach aussen zu führen. 



  Der Innenraum 10 zwischen den Scheiben 2 kann oben und unten durch Deckel 15 abgeschlossen sein, die z.B. ebenfalls mit doppelseitigem Klebband 7 befestigt sein können. Vorzugsweise hat dabei der untere und/oder obere Deckel 15 mindestens eine Durchgangsöffnung 16 zur Wegleitung des Wasserdampfes. 



  Falls das Fassadenelement 1 hoch, also die Scheiben 2 lang sind, kann der Füllkörper 3 in der Höhe in mehrere Teile unterteilt sein, welche durch Tragplatten 17 voneinander getrennt sind. Die Tragplatten 17 sind beidseitig an den Verbindungsstegen 6 befestigt. 



  Die Fassadenelemente 1 können zur Wärmedämmung von Mauerwerk 20 verwendet werden (Fig. 3). Auf das Mauerwerk wird in bekannter Weise ein Raster aus horizontalen Sprossen 21 und vertikalen Kämpfern montiert. In Figur 3 ist eine der Sprossen 21 stark vereinfacht dargestellt. Sie kann z.B. aus einem thermisch isolierten Aluminium-Verbund-Hohlprofil bestehen. Die Fassadenelemente 1 werden auf die Sprossen 21 aufgestellt (mit oder ohne Deckel 15) und mit Glasfalzleisten 22 und Dichtelementen 23 abgedichtet. Nebeneinander stehende Elemente 1 können z.B. mit transparentem Silikongummi 24 abgedichtet werden. Die Oberfläche 25 des Mauerwerks 20 ist infrarotabsorbierend, z.B. mit einer dunklen Farbe eingefärbt. Die derart aufgebaute Fassade ergibt eine sehr gute Wärmedämmung und ermöglicht die Ausnützung von Sonnenlicht zur Erwärmung des Mauerwerks 20.

  Durch diese Wärme werden die hinter dem Mauerwerk liegenden Räume beheizt; die Fassade ist also ein Sonnenkollektor. Wegen der U-Profilscheiben 2 sind die Fassadenelemente 1 eigenstabil und benöti gen keinen Rahmen. Dadurch sind sie preiswert herstellbar und ästhetisch ansprechend zu einer Fassade zusammenbaubar. 



  Um im Sommer die Erwärmung des Mauerwerks 20 durch Sonnenlicht und dadurch eine Überhitzung der dahinterliegenden Räume zu verhindern, kann im Zwischenraum 9 ein Abblendmittel, z.B. eine Lamellenstore 28 (Fig. 4) oder eine Rollstore eingebaut sein, die z.B. über eine in die Sprosse 21 eingebaute, drehbare Achse 29 mit Hebelarmen 30 betätigbar ist, sodass die Lamellen 31 aus der dargestellten horizontalen Stellung in eine vertikale Stellung verschwenkt werden können. 



   Die Fassadenelemente 1 eignen sich jedoch auch vorzüglich als diffus lichtdurchlässige Fenster zur Tageslichtbeleuchtung von Räumen. In dieser Anwendung haben sie eine wesentlich bessere Wärmedämmwirkung als herkömmliche Fenster oder Glasbausteine. Natürlich können die beiden beschriebenen Anwendungen in der gleichen Fassade auch kombiniert werden. 



  Bei der Ausführungsform nach Fig. 5 besteht die äussere der beiden U-Profilscheiben 2 aus Glas, die innere 2 min  dagegen aus Acryl-Glas oder einem andern transparenten Kunststoff. Die Schenkel 5 der beiden Scheiben 2, 2 min  sind ineinander geschoben und direkt miteinander verbunden, z.B. verleimt. Benachbarte Elemente 1 sind mit einem Elastomerprofil 36 gegeneinander abgedichtet. In    Fig. 5 ist die Anwendung der Elemente 1 zur Tageslichtbeleuchtung von Räumen gezeigt, in dem das Mauerwerk 20 aus Glasbausteinen 35 aufgebaut ist. 



  
 



  Translucent facade elements as transparent thermal insulation are e.g. known in the form of windows. In stairwells or the like, a clear view is often not required, but only daylight illumination. For this purpose, glass blocks are also available, which can be walled in directly. However, these glass blocks are poorly insulated, so that they are used less recently.



  The present invention has for its object to provide a translucent facade element that allows diffuse daylight lighting with a high thermal insulation value. This object is achieved by the combination of features of claim 1.



  An exemplary embodiment of the invention is explained below with reference to the drawings. It shows:
 
   1 shows a cross section through two facade elements,
   2 shows a longitudinal section through an element,
   3 shows a vertical section through two elements mounted on a masonry,
   Fig. 4 is a facade element with overheating protection, and
   Fig. 5 shows a cross section through a second embodiment.
 



  The facade element 1 consists of two glass profile panes 2 with a U-shaped cross section and a filler 3 made of transparent thermal insulation. The legs 5 of the disks 2, which are short, facing each other and in alignment with one another, are short compared to the large surfaces 4 of the disks 2, which are connected to one another by connecting hollow profiles 6 made of plastic, e.g. by means of double-sided adhesive tapes 7. The filling body 3 has continuous channels 8 running perpendicular to the large areas 4 and consists e.g. from stacked and interconnected, narrow, transparent, thin-walled tubes or from a honeycomb or grid structure made of transparent, thin-walled plastic. On the back, the filler 3 lies against the large area 4 in order to prevent heat transfer by convection.

  On the other hand, there can be an intermediate space 9 between the filler 3 and the large surface 4, in order to lead any water vapor contained in the element to the outside through this intermediate space.



  The interior 10 between the panes 2 can be closed at the top and bottom by covers 15, which e.g. can also be attached with double-sided adhesive tape 7. The lower and / or upper cover 15 preferably has at least one through opening 16 for guiding away the water vapor.



  If the facade element 1 is high, that is to say the panes 2 are long, the filler 3 can be divided in height into several parts which are separated from one another by support plates 17. The support plates 17 are attached to the connecting webs 6 on both sides.



  The facade elements 1 can be used for thermal insulation of masonry 20 (Fig. 3). A grid of horizontal rungs 21 and vertical fighters is mounted on the masonry in a known manner. In Figure 3, one of the rungs 21 is shown in a highly simplified manner. It can e.g. consist of a thermally insulated aluminum composite hollow profile. The facade elements 1 are placed on the rungs 21 (with or without cover 15) and sealed with glazing beads 22 and sealing elements 23. Adjacent elements 1 can e.g. be sealed with transparent silicone rubber 24. The surface 25 of the masonry 20 is infrared absorbing, e.g. colored with a dark color. The facade constructed in this way provides very good thermal insulation and enables the use of sunlight to heat the masonry 20.

  This heat heats the rooms behind the masonry; the facade is therefore a solar collector. Because of the U-profile panes 2, the facade elements 1 are inherently stable and do not require a frame. This makes them inexpensive to manufacture and aesthetically appealing to assemble into a facade.



  In order to prevent the masonry 20 from being heated by sunlight in summer and thereby overheating of the rooms behind it, a shielding agent, e.g. a slat blind 28 (Fig. 4) or a roller blind can be installed, e.g. Can be actuated by lever arms 30 via a rotatable shaft 29 built into the rung 21, so that the slats 31 can be pivoted from the illustrated horizontal position into a vertical position.



   However, the facade elements 1 are also particularly suitable as diffusely translucent windows for daylighting rooms. In this application, they have a much better thermal insulation effect than conventional windows or glass blocks. Of course, the two applications described can also be combined in the same facade.



  In the embodiment according to FIG. 5, the outer of the two U-profile disks 2 is made of glass, the inner 2 minutes, on the other hand, is made of acrylic glass or another transparent plastic. The legs 5 of the two disks 2, 2 min are pushed into one another and directly connected to one another, e.g. glued. Adjacent elements 1 are sealed against one another with an elastomer profile 36. 5 shows the use of elements 1 for daylight lighting of rooms in which the masonry 20 is built up from glass blocks 35.

Claims

1. Facade element, comprising two U-shaped, transparent profiled panes (2), the legs (5) of which are turned towards one another and connected to one another, and a filler (3) made of transparent thermal insulation, which has continuous channels (8) transverse to the large areas (4) of the washers (2).

2. Facade element according to claim 1, wherein the channels (8) are arranged perpendicular to the large areas (4).

3. Facade element according to claim 1 or 2, wherein the filler (3) distance from the large area (4) of one of the panes (2) and abuts the large area (4) of the other pane (2).

4th

Facade element according to one of claims 1-3, wherein the filling body (3) is divided in the longitudinal direction of the panes (2) into a plurality of partial bodies, which are separated from one another by a supporting element (17) running transversely to this longitudinal direction, which in connecting webs (6) is attached.

5. Facade element according to one of claims 1-4, wherein the interior (10) between the panes (2) at both ends is closed with lids (15), at least one of which has a ventilation opening (16).

6. Facade element according to one of claims 1-5, wherein in an intermediate space (9) between the filler (3) and the large area (4) of one of the panes (2) a light reflection means (28) is used, which is preferably switchable in two positions is.

7.

Facade element according to one of claims 1-6, wherein both letters (2) consist of glass and their legs (5) are aligned with one another and are connected to one another by connecting webs (6) made of plastic.

8. Facade element according to one of claims 1-6, wherein one pane (2) made of glass and the other made of plastic, in particular acrylic glass, and wherein the legs (5) of the two panes pushed into one another and preferably glued together are.

9. Use of the facade elements according to one of claims 1-8 for thermal insulation of masonry (20), wherein the surface (25) of the masonry (20) is designed to absorb light.

10. Use of the facade elements according to one of claims 1-8 for daylight lighting of rooms.

11.

Use according to claim 9 or 10, wherein the facade elements (1) are held in a grid-like structure (21) and adjacent elements (1) are sealed off from one another. 1. Facade element, comprising two U-shaped, transparent profiled panes (2), the legs (5) of which are turned towards one another and connected to one another, and a filler (3) made of transparent thermal insulation, which has continuous channels (8) transverse to the large areas (4) of the washers (2). 2. Facade element according to claim 1, wherein the channels (8) are arranged perpendicular to the large areas (4). 3. Facade element according to claim 1 or 2, wherein the filler (3) distance from the large area (4) of one of the panes (2) and abuts the large area (4) of the other pane (2). 4th

Facade element according to one of claims 1-3, wherein the filling body (3) is divided in the longitudinal direction of the panes (2) into a plurality of partial bodies, which are separated from one another by a supporting element (17) running transversely to this longitudinal direction, which in connecting webs (6) is attached. 5. Facade element according to one of claims 1-4, wherein the interior (10) between the panes (2) at both ends is closed with lids (15), at least one of which has a ventilation opening (16). 6. Facade element according to one of claims 1-5, wherein in an intermediate space (9) between the filler (3) and the large area (4) of one of the panes (2) a light reflection means (28) is used, which is preferably switchable in two positions is. 7.

Facade element according to one of claims 1-6, wherein both letters (2) consist of glass and their legs (5) are aligned with one another and are connected to one another by connecting webs (6) made of plastic. 8. Facade element according to one of claims 1-6, wherein one pane (2) made of glass and the other made of plastic, in particular acrylic glass, and wherein the legs (5) of the two panes pushed into one another and preferably glued together are. 9. Use of the facade elements according to one of claims 1-8 for thermal insulation of masonry (20), wherein the surface (25) of the masonry (20) is designed to absorb light. 10. Use of the facade elements according to one of claims 1-8 for daylight lighting of rooms. 11.

Use according to claim 9 or 10, wherein the facade elements (1) are held in a grid-like structure (21) and adjacent elements (1) are sealed off from one another.