EP1806537B1 - Open or closed fireplace with protective screen of glass or glass ceramic - Google Patents
Open or closed fireplace with protective screen of glass or glass ceramic Download PDFInfo
- Publication number
- EP1806537B1 EP1806537B1 EP07100126A EP07100126A EP1806537B1 EP 1806537 B1 EP1806537 B1 EP 1806537B1 EP 07100126 A EP07100126 A EP 07100126A EP 07100126 A EP07100126 A EP 07100126A EP 1806537 B1 EP1806537 B1 EP 1806537B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glass
- door frame
- open
- protective screen
- screen
- 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.)
- Active
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B13/00—Details solely applicable to stoves or ranges burning solid fuels
- F24B13/004—Doors specially adapted for stoves or ranges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/18—Stoves with open fires, e.g. fireplaces
- F24B1/191—Component parts; Accessories
- F24B1/192—Doors; Screens; Fuel guards
Definitions
- the invention relates to a fireplace or stove with a glass pane of glass-ceramic.
- the window can also consist of a glass with low thermal expansion, in particular borosilicate glass, if the temperature in the furnace is not too high.
- fireplaces or stoves which are becoming increasingly popular in the home, typically have a privacy screen coupled to the door to the combustion chamber. See for example the EP 0 930 465 A2 .
- the screen is in a known manner predominantly of a colorless glass ceramic.
- a glass ceramic material suitable for this purpose is commercially available, for example, under the brand ROBAX®. But even a borosilicate glass, which is under the brand BOROFLOAT® commercially, is suitable.
- the starting material in a glass-ceramic privacy screen is in each case a flat glass pane in various thicknesses of 2 to 10 mm, which is deformed by known processes and then ceramized.
- Decorations can be applied to the inside and outside of the screen.
- the screen may be provided with functional and designerischen coatings (one-sided or two-sided).
- functional and designerischen coatings one-sided or two-sided.
- corresponding holes are provided in the glass or glass-ceramic privacy screen.
- the Fig. 4 shows such a construction according to the prior art.
- the viewing window 1 is held in a door frame, which consists of an outer metal frame 3 and an inner metal frame 5, which are connected to each other via a screw 6. In this case, the viewing window rests against the outer metal frame 3 via an outer seal 2 and an inner seal 4 against the inner metal frame 5.
- the different temperature / time loads due to the fire in the combustion chamber affect the different materials such as steel or glass ceramic. Due to the different coefficients of expansion of the different materials it comes thereby twisting and / or to a delay of the door frame, which leads to an increased risk of breakage of the lens.
- the invention has for its object to reduce the risk of breakage of the glass-ceramic pane by reducing torsional forces of the door frame on the glass-ceramic pane in an existing door frame construction of the glass or glass-ceramic window of a fireplace or stove. It should be possible that the door frame construction can be maintained and possibly only the heat-resistant sealing material must be replaced. In the case of a frameless glass-ceramic viewing window, in particular its weight should be reduced.
- Fig. 3 shows, to a change in geometry of the lens 1 in the contact region of the door frame 3, 5 of the stove.
- the heat conduction in the edge region is reduced transversely to the lens, since the disc is thinner in this area and thus the cross section of the lens is reduced. This effect reduces the temperature of the door frame.
- the standard thicknesses for glass-ceramic privacy screens are 3, 4 and 5 mm.
- EP 0 496 243 B1 is an oven door with a protective screen for a microwave oven known, which has a plastic frame with flush inserted transparent polycarbonate disc, which is tapered towards the edge, has.
- the critical, in particular thermal edge loads, as in the case of glass or glass ceramic panes of chimney or stove doors in the case of the invention do not occur in the known oven door.
- the surface of the facet can be used in polished and polished condition. Glass ceramic plates with a circumferential facet cut are known per se. The surface of the facet can be used in polished and polished condition.
- a facet can be attached to each of the privacy screens with the geometrical embodiments mentioned at the outset and on every imaginable edge (flat and deformed).
- the invention is particularly noticeable when the facet is mounted on a flat disc.
- the Fig. 1 shows such an embodiment with a flat glass or glass ceramic disc 1, which corresponds to the Fig. 3 is enclosed in a frame 3 and has a circumferential facet 1 '.
- the screen can also be deformed.
- Various processes can be used for forming, such as bending or gravity sinking.
- Curved lenses can be easily, ie once 90 ° or more times, for example, be bent by 90 ° twice, ie they have flat surfaces that are angled over a small radius, for example, about 5 mm.
- Fig. 2 is such on both sides by 90 ° angled screen, which is also faceted in the angled surfaces 1 a, 1 b, shown.
- Circular shaped lenses may also be provided in different radii with edge faceting, as well as multi-dimensionally deformed discs (e.g., a spherical cap portion) and discs that are circularly and angularly deformed in combination.
- the faceting is preferably carried out already in the precursor glass, also called green glass.
- the pane is then reshaped and then ceramized.
- the ceramization can be carried out by appropriate temperature / time programs until the formation of high quartz mixed crystals or until the formation of Keatitmischkristallen which give the screen a translucent (milky) appearance.
- the lens can be decorated or undecorated in the area of the facet. Further facets in the lens are conceivable as a design element at every point.
- the multiple refraction of the light by means of the facet edge enhances the brilliance of the flames in the combustion chamber and is pronounced of the light effects of a diamond in the light.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Glass Compositions (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Surface Treatment Of Glass (AREA)
- Laminated Bodies (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Special Wing (AREA)
- Wing Frames And Configurations (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Kamin oder Kaminofen mit einer Sichtschutzscheibe aus Glaskeramik . Prinzipiell kann die Sichtschutzscheibe auch aus einem Glas mit niedriger Wärmedehnung, insbesondere aus Borosilikatglas, bestehen, sofern die Temperatur im Feuerraum nicht zu hoch ist.The invention relates to a fireplace or stove with a glass pane of glass-ceramic. In principle, the window can also consist of a glass with low thermal expansion, in particular borosilicate glass, if the temperature in the furnace is not too high.
Kamine oder Kaminöfen, die sich gerade im häuslichen Bereich immer größerer Beliebtheit erfreuen, weisen typischerweise eine Sichtschutzscheibe auf, die mit der Tür zum Brennraum gekoppelt ist. Siehe hierzu zum Beispiel die
Dabei besteht die Möglichkeit, entweder die Sichtschutzscheibe in einem Türrahmen, z.B. in einen metallischen Türrahmen einzubauen, oder die Sichtschutzscheibe ohne Rahmen direkt als Tür zum Verschließen des Brennraumes zu nutzen.There is the possibility of either the screen in a door frame, e.g. to install in a metallic door frame, or to use the window without frame directly as a door to close the combustion chamber.
Sichtschutzscheiben aus Glas bzw. Glaskeramik, die in der Regel einteilig ausgeführt sind, können eine unterschiedliche Konfiguration haben. Folgende geometrische einteilige Ausführungsformen von Glas bzw. Glaskeramik-Kaminsichtscheiben sind bekannt:
- Flach
- Rund
- Winklig
- Mehrfach winklig
- Mehrfach winklig und rund
- Mehrdimensional verformt.
- Flat
- round
- angularly
- Multiple angled
- Multiple angled and round
- Multidimensional deformed.
Das Ausgangsmaterial bei einer Glaskeramik-Sichtschutzscheibe ist jeweils eine ebene Glasscheibe in verschiedenen Dicken von 2 bis 10 mm, die mit bekannten Prozessen verformt und dann keramisiert wird.The starting material in a glass-ceramic privacy screen is in each case a flat glass pane in various thicknesses of 2 to 10 mm, which is deformed by known processes and then ceramized.
Dekore können auf der Innen- und Außenseite der Sichtschutzscheibe aufgebracht sein. Weiterhin kann die Sichtschutzscheibe mit funktionellen und designerischen Beschichtungen (einseitig oder beidseitig) versehen sein. Für die Montage der Scheibe in rahmenloser Form und für Schrauben- oder Wellendurchführungen (z.B. Türgriff, ...), sind entsprechende Bohrungen in der Glas- bzw. Glaskeramik-Sichtschutzscheibe vorgesehen.Decorations can be applied to the inside and outside of the screen. Furthermore, the screen may be provided with functional and designerischen coatings (one-sided or two-sided). For the mounting of the disc in frameless form and for screw or shaft passages (e.g., door handle, ...), corresponding holes are provided in the glass or glass-ceramic privacy screen.
Sichtscheiben, die in einem vorzugsweise aus Stahl bestehenden Türrahmen eingebaut sind, werden durch hitzebeständiges Dichtungsmaterial vom Kontakt mit dem Stahl abgehalten. Die
Die unterschiedlichen Temperatur/Zeitbelastungen durch das Feuer im Brennraum wirken auf die verschiedenen Materialien wie Stahl oder Glaskeramik ein. Durch den unterschiedlichen Ausdehnungskoeffizienten der verschiedenen Materialien kommt es dabei zu Verwindungen und/oder zu einem Verzug des Türrahmens, was zu einem erhöhten Bruchrisiko der Sichtscheibe führt.The different temperature / time loads due to the fire in the combustion chamber affect the different materials such as steel or glass ceramic. Due to the different coefficients of expansion of the different materials it comes thereby twisting and / or to a delay of the door frame, which leads to an increased risk of breakage of the lens.
Der Erfindung liegt die Aufgabe zugrunde, bei einer bestehenden Türrahmenkonstruktion der Glas- oder Glaskeramik-Sichtscheibe eines Kamins oder Kaminofens das Bruchrisiko der Glaskeramik-Scheibe durch Reduzierung von Verwindungskräften des Türrahmens auf die Glaskeramik-Scheibe zu reduzieren. Es soll möglich sein, dass die Türrahmenkonstruktion beibehalten werden kann und ggf. nur das hitzebeständige Dichtungsmaterial ausgetauscht werden muss. Bei einer rahmenlosen Glaskeramik-Sichtscheibe soll insbesondere deren Gewicht reduziert werden.The invention has for its object to reduce the risk of breakage of the glass-ceramic pane by reducing torsional forces of the door frame on the glass-ceramic pane in an existing door frame construction of the glass or glass-ceramic window of a fireplace or stove. It should be possible that the door frame construction can be maintained and possibly only the heat-resistant sealing material must be replaced. In the case of a frameless glass-ceramic viewing window, in particular its weight should be reduced.
Die Lösung dieser Aufgabe gelingt gemäß der Erfindung durch die Verwendung einer Sichtschutzscheibe aus Glas mit niedriger Wärmedehnung oder Glaskeramik die einen sich über den gesamten Rand umlaufenden facettenartig in der Dicke verjüngenden Randbereich aufweist, dessen Dicke kleiner als die Scheibendicke im Innenbereich ist.The solution of this object is achieved according to the invention by the use of a sight glass of low thermal expansion or glass ceramic which has a circumferential over the entire edge faceted in the thickness tapered edge region whose thickness is smaller than the thickness of the pane in the interior.
Bei einer bestehenden Türrahmenkonstruktion, z. B. derjenigen nach
Weiterhin wird durch die Verringerung der Randdicke der Sichtscheibe die Wärmeleitung im Randbereich quer zur Sichtscheibe reduziert, da die Scheibe in diesem Bereich dünner ist und somit der Querschnitt der Sichtscheibe reduziert wird. Durch diesen Effekt wird die Temperatur des Türrahmens verringert.Furthermore, by reducing the edge thickness of the lens, the heat conduction in the edge region is reduced transversely to the lens, since the disc is thinner in this area and thus the cross section of the lens is reduced. This effect reduces the temperature of the door frame.
Um diesen Effekt zu erzielen, ist für den Facettenschliff eine gewisse Facettenbreite WF und Restkantendicke tF notwendig. Diese Werte liegen in folgenden Bereichen:
Die Standarddicken bei Glaskeramik-Sichtschutzscheiben sind dabei 3, 4 und 5 mm.The standard thicknesses for glass-ceramic privacy screens are 3, 4 and 5 mm.
Glaskeramikplatten mit einem umlaufenden Facettenschliff sind an sich bekannt (
Durch die
Durch die Verringerung der Dicke der Sichtscheibe im Randbereich ist es mit Vorteil auch möglich, die Türrahmenkonstruktion wesentlich filigraner/dünner auszuführen. Dies kann zur Gewichtsreduzierung beitragen.
Die Oberfläche der Facette ist in geschliffenem und poliertem Zustand einsetzbar.
Glaskeramikplatten mit einem umlaufenden Facettenschliff sind an sich bekannt. Die Oberfläche der Facette ist in geschliffenem und poliertem Zustand einsetzbar.By reducing the thickness of the window in the edge region, it is also possible with advantage to make the door frame construction much filigree / thin. This can contribute to weight reduction.
The surface of the facet can be used in polished and polished condition.
Glass ceramic plates with a circumferential facet cut are known per se. The surface of the facet can be used in polished and polished condition.
Eine Facette kann grundsätzlich an jeder der Sichtschutzscheiben mit den eingangs genannten geometrischen Ausführungsformen und an jeder denkbaren Kante angebracht werden (flach und verformt). Die Erfindung macht sich mit besonderem Vorteil bemerkbar, wenn die Facette an einer ebenen Scheibe angebracht ist. Die
Die Sichtschutzscheibe kann aber auch verformt sein. Für die Umformung können verschiedene Prozesse angewendet werden, wie z.B. Biegen oder Schwerkraftsenken. Gebogene Sichtscheiben können einfach, d.h. einmal um 90° oder mehrfach, beispielsweise um zweimal 90° abgewinkelt sein, d.h. sie weisen ebene Flächen auf, die über einen kleinen Radius, z.B. ca. 5 mm, abgewinkelt sind.
In
In
Auch mehrere Biegungen mit verschiedenen Biegewinkeln sind verstellbar.Also several bends with different bending angles are adjustable.
Auch in verschiedenen Radien rundverformte Sichtscheiben (z.B. Zylinder- oder Kegelausschnitt) können mit einer Randfacettierung versehen werden, ebenso mehrdimensional verformte Scheiben (z.B. Ausschnitt aus einer Kugelkalotte) sowie Scheiben, die in Kombination rund und winklig verformt sind.Circular shaped lenses (e.g., cylindrical or conical cutouts) may also be provided in different radii with edge faceting, as well as multi-dimensionally deformed discs (e.g., a spherical cap portion) and discs that are circularly and angularly deformed in combination.
Die Facettierung erfolgt vorzugsweise bereits im Vorläuferglas, auch Grünglas genannt. Bei verformten Sichtschutzscheiben wird danach die Scheibe umgeformt und anschließend keramisiert. Das Keramisieren kann durch entsprechende Temperatur/Zeitprogramme bis zum Entstehen von Hochquarz-Mischkristallen oder bis zum Entstehen von Keatitmischkristallen, welche der Sichtschutzscheibe eine transluzente (milchige) Anmutung verleihen, erfolgen.The faceting is preferably carried out already in the precursor glass, also called green glass. In the case of deformed window panes, the pane is then reshaped and then ceramized. The ceramization can be carried out by appropriate temperature / time programs until the formation of high quartz mixed crystals or until the formation of Keatitmischkristallen which give the screen a translucent (milky) appearance.
Die Sichtscheibe kann im Bereich der Facette dekoriert oder undekoriert hergestellt werden. Weitere Facetten in der Sichtscheibe sind an jeder Stelle als Designelement denkbar.The lens can be decorated or undecorated in the area of the facet. Further facets in the lens are conceivable as a design element at every point.
Durch die Mehrfachbrechung des Lichtes mittels der Facettenkante erhöht sich die Brillanz der Flammen im Brennraum und erinnert an die Lichtspiele eines Diamanten im Licht.The multiple refraction of the light by means of the facet edge enhances the brilliance of the flames in the combustion chamber and is reminiscent of the light effects of a diamond in the light.
Es zeigen:
- Fig. 1
- eine facettierte, in einem Rahmen gehalterte ebene Sichtschutzscheibe,
- Fig. 2
- eine Sichtschutzscheibe nach
Fig. 1 , die beidseitig um 90° abgewinkelt ist, - Fig. 3
- in einer querschnittlichen Ansicht die abgedichtete Halterung der Sichtschutzscheibe im Rahmen und,
- Fig. 4
- in einer Darstellung entsprechend
Fig. 3 die Halterung einer bekannten, nicht facettierten Sichtschutzscheibe in dem Rahmen.
- Fig. 1
- a faceted, frame-mounted flat screen,
- Fig. 2
- a screen after
Fig. 1 , which is angled at 90 ° on both sides, - Fig. 3
- in a cross-sectional view, the sealed support of the window in the frame and,
- Fig. 4
- in a representation accordingly
Fig. 3 the holder of a known, non-faceted screen in the frame.
Claims (6)
- Open or closed fireplace with a protective screen (1) of glass of low thermal expansion or glass ceramic, characterized in that the protective screen (1) has an edge region (1') which runs around the entire edge, decreases in thickness in a faceted manner and the thickness of which is less than the thickness of the screen in the inner region, and in that the protective screen (1) is fitted in a door frame (3).
- Open or closed fireplace according to Claim 1, characterized in that the door frame (3) is formed as a metal door frame.
- Open or closed fireplace according to either of Claims 1 and 2, characterized in that the width of the door frame (3) is adapted to the width of the facet (1').
- Open or closed fireplace according to one of Claims 1 to 3, characterized in that the protective screen (1) is of a flat form.
- Open or closed fireplace according to Claim 4, characterized in that the protective screen (1) is angled away on at least one side.
- Open or closed fireplace according to one of Claims 1 to 3, characterized in that the protective screen (1) is of a roundly shaped or multidimensionally shaped form.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006001038A DE102006001038B4 (en) | 2006-01-07 | 2006-01-07 | Screen made of glass or glass ceramic for fireplaces or stoves |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1806537A2 EP1806537A2 (en) | 2007-07-11 |
EP1806537A3 EP1806537A3 (en) | 2008-06-11 |
EP1806537B1 true EP1806537B1 (en) | 2009-09-09 |
Family
ID=37943737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07100126A Active EP1806537B1 (en) | 2006-01-07 | 2007-01-04 | Open or closed fireplace with protective screen of glass or glass ceramic |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1806537B1 (en) |
AT (1) | ATE442553T1 (en) |
DE (2) | DE102006001038B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008039492B4 (en) * | 2008-08-23 | 2014-01-16 | Schott Ag | Stove window |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2672080B1 (en) * | 1991-01-25 | 1993-12-03 | Moulinex | HOUSEHOLD APPLIANCE DOOR AND ITS BUILT-IN METHOD. |
DE4325399C2 (en) * | 1993-07-29 | 1996-05-09 | Schott Glaswerke | Use of temperature-insulating, plate-shaped system elements made of multi-pane glazing with evacuated pane spaces to build up cold rooms and heating chambers |
DE19649767A1 (en) * | 1996-11-30 | 1998-06-04 | Schott Glaswerke | Arrangement for attaching glass ceramic cooktops with an edge area tapered to a thin edge on a worktop |
DE19801079C2 (en) * | 1998-01-14 | 2000-11-30 | Schott Glas | Fireplace or stove for the home |
DE10149085B4 (en) * | 2001-10-05 | 2005-09-22 | Schott Ag | oven door |
DE10344439B3 (en) * | 2003-09-25 | 2005-02-10 | Schott Ag | Glass or glass/ceramic plate, for a cooking hob, is molded from molten glass with a raised edge, to be shaped into wide facings to take the operating controls and displays for the cooking zones |
PL1678091T3 (en) * | 2003-10-28 | 2012-02-29 | Schott Ag | Method for the production of a molded glass part comprising at least one bent portion |
WO2006059303A2 (en) * | 2004-12-01 | 2006-06-08 | Arcelik Anonim Sirketi | A cooking appliance |
-
2006
- 2006-01-07 DE DE102006001038A patent/DE102006001038B4/en active Active
-
2007
- 2007-01-04 AT AT07100126T patent/ATE442553T1/en active
- 2007-01-04 EP EP07100126A patent/EP1806537B1/en active Active
- 2007-01-04 DE DE502007001459T patent/DE502007001459D1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE502007001459D1 (en) | 2009-10-22 |
ATE442553T1 (en) | 2009-09-15 |
DE102006001038B4 (en) | 2008-01-03 |
DE102006001038A1 (en) | 2007-07-12 |
EP1806537A2 (en) | 2007-07-11 |
EP1806537A3 (en) | 2008-06-11 |
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