EP0962705B1 - Gas cooker with support frame - Google Patents

Gas cooker with support frame Download PDF

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Publication number
EP0962705B1
EP0962705B1 EP99110367A EP99110367A EP0962705B1 EP 0962705 B1 EP0962705 B1 EP 0962705B1 EP 99110367 A EP99110367 A EP 99110367A EP 99110367 A EP99110367 A EP 99110367A EP 0962705 B1 EP0962705 B1 EP 0962705B1
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EP
European Patent Office
Prior art keywords
display
gas cooker
support frame
cooker according
gas
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EP99110367A
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German (de)
French (fr)
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EP0962705A3 (en
EP0962705A2 (en
Inventor
Wilfried Hüttemann
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Miele und Cie KG
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Miele und Cie KG
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Publication of EP0962705A2 publication Critical patent/EP0962705A2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges

Definitions

  • the invention relates to a gas hob with at least one gas burner, a trough base plate and a support frame for cookware.
  • pan supports so that pots, Pans or similar do not rest directly on the gas burner.
  • the pan supports are often used as a glass ceramic plate or removable support frame.
  • the supporting frame usually exists made of enamelled steel.
  • Such support frames heat up both during cooking by the radiant heat of the gas flame as well as by the heat conduction within the Frame strong.
  • the support frame must, however, especially for cleaning the underlying Trough base plate, frequently removed.
  • DE 25 45 239 A1 discloses a residual heat indicator in which one that is already present in the stove Display activated when the predetermined temperature of a cooking zone is exceeded is that there is a warning of residual heat on the display.
  • DE 91 01 823 U1 discloses a device made of plastic for displaying the residual heat, in which a lamp bulb is arranged in specially designed receiving sleeves. But here too the device for displaying residual heat is located underneath a glass ceramic plate, so that the electrical supply is easy to implement there, but not for the Use in or on a support frame is suitable.
  • the display device includes a temperature sensitive Control or switching element and an electrically actuated light trained electrically actuated display means.
  • the trained as a switch Temperature-sensitive control or switching element is attached to the Support frame releasably attached and is in heat transfer connection with the Gas burner.
  • the electrically actuatable display means is attached to a by means of a holder Drip tray arranged underneath the trough base plate. Furthermore, these are temperature-sensitive control or switching element and the electrically operated Display means arranged in an electrical circuit. If the temperature sensitive Control or switching element exceeded a predetermined temperature the temperature-sensitive control or switching element closes the electrical one Circuit and the electrically operated display means designed as light switched on, so that the user is visually shown that the gas burner for one Touch is still too hot.
  • gas hobs have no residual or post-heat indicator or gas hobs existing residual or residual heat indicators are always from an electrical one Power supply dependent. For gas hobs, this means that in addition to Gas connection there must always be an electrical connection. At least with simple ones and inexpensive gas hobs, that doesn't make sense. In addition, the supply lines would be to lay on the support frame only with great effort, since this can also be removed Support frame must be guaranteed for cleaning. Residual heat indicators of the known type are only limited and with additional and complex measures on gas hobs transferable.
  • the invention thus poses the problem of gas cooktops with support frames for Design cookware in such a way that a warning of excessive temperatures on the support frame done with little effort.
  • the advantages achievable with the invention are achieved by integrating at least one warning Display device for residual heat reached in a support frame.
  • the display device for residual heat gives the user a long time after the gas burner is switched off optimal security, because it is a direct thermal coupling with the support frame Risk of burns signaled.
  • a particular advantage is immediate and reliable warning of too high temperatures of the support frame, without use an electric light or electronic temperature sensors.
  • the display device to avoid misinformation at a location of the Support frame arranged, which is not exposed to the direct radiant heat of the gas burner is.
  • the display device for residual or residual heat works mechanically and is without an electrical power supply is functional.
  • the bi- or memory metal strip is made of spring steel, for example, to keep the movement of the display segments depending on the temperature.
  • the Display area should be in an open area (visible to the operator) and a hidden area (invisible) area. It is particularly advantageous if the alarming Display segment only visible at temperatures> 60 ° C and when it drops below this temperature value is invisible again. The user receives when this display segment appears the quick information that the support frame is too hot to touch without protection is.
  • FIG. 1 shows a single hotplate with a gas burner (2), one the gas burner (2) surrounded bowl base plate (8) and a support frame (1) for putting on cookware above the gas burner (2).
  • Such trough base plates (8) usually have one Surface that is enamelled or made of stainless steel.
  • a display device (3) for night or residual heat is integrated directly into the support frame (1).
  • the display device (3) is a Contain means (5) which has a direct thermal connection to the support frame (1).
  • the display device (3) works reliably mechanically without electrical Power supply.
  • the support frame (1) consists of an outer frame area (1.1) and several, with this connected and radiating to the gas burner (2) facing support webs (1.2).
  • the display element (3) In order to provide a meaningful signaling of the temperature for the largest possible To be able to make area of the support frame (1) is the display element (3) for Depending on the temperature resistance, residual heat is arranged in an area which is not the is directly exposed to radiant heat from the gas burner (2). This is the optimal arrangement Display element (3) is therefore arranged in the outer frame area (1.1), at the intersection with a footbridge (1.2). For this purpose, the outer frame area (1.1) has a recess (4) Recording the display element (3). With large support frames, which have several gas burners (2) are arranged, it is quite possible to have several display elements (3) different places. This increases the accuracy of the warning for individual sections of the support frame (1). For example, if only one gas burner (2) in Is or was in operation, the support frame (1) can possibly be touched at another end, without having to take any special precautions.
  • FIG. 2 shows a section through a simple structure of a display element (3).
  • the Display element (3) consists of several individual parts. In particular, are a metal strip (5), a movable display surface (6) connected to this and one the display surface (6) covering transparent cover plate (7) necessary components. These components (5, 6, 7) are individually inserted in a recess (4) of the support frame (1) and then connected to the support frame (1) in a watertight manner. It is even more advantageous if the display element (3) represents a complete assembly with all its components (5, 6, 7), which is arranged in its own housing (9). Such a component (3) becomes detachable or permanently inserted into the recess (4) of the support frame (1).
  • the metal strip (5) is preferably made from a bi- or memory metal spring. Thereby becomes the temperature-dependent movement of display segments (10.1 -10.n) of the display area (6) performed exactly. Due to the increasing temperature on the support frame (1) the metal strip (5) extends and moves the display segments (10.1 -1 0.n) of the display surface (6). These can either move in a circular or a linear path. The correct information quickly gets to the user of the hob without a connection to the electrical power grid must be available.
  • the display segments (10.1 -10.n) should be characterized by different color and / or pattern areas, each Each segment (10.1, 10.2, - 10.n) is assigned a temperature or a temperature range is.
  • the display segment (10.1) which belongs to temperatures> 60 ° C, should be special be conspicuous because a direct contact with the support frame (1) from these temperatures direct risk of burns.
  • the cover plate (7) which is transparent in at least one partial area, serves the purpose Protection of the display element (3) against external mechanical and chemical stresses. It is connected to the display element (3) such that it is in the upper Area of the support frame (1) or its own housing is watertight. This prevents soiling that leads to malfunctions in the display can get into the interior of the display element (3). To the warning of the too high Clearly recognizable temperatures of the support frame (1) is a design of the cover plate (7) useful as a lens. This makes an optical magnification of the otherwise relative small warning display area (6) created.
  • the support frame (1) is often dirty during cooking in addition to the trough base plate (8), it is advantageous if the latter, together with the display element (3), is dishwasher-safe Unity forms. This means that it can be removed without much effort after removal be cleaned thoroughly. However, it must then be ensured that nowhere Water can penetrate into the display element (3). But it is also possible to use the display element (3) to be designed as a separate component and to be arranged in a watertight housing (9). The housing (9) is watertightly connected to the transparent cover plate (7). In In such an embodiment, it can be removed from the supporting frame (1). Support frame (1) and display element (3) must then be cleaned separately if necessary.
  • a display surface (6) is shown in plan view. It has a visible segment in which the display segment (10.1) appears when the temperature is too high. This visible segment takes up about a quarter of the total display area (6) in this example. The rest of the area is invisible from above. Of course, there are other subdivisions realizable. Due to the moving display segments (10.1 -10.n) appears always a different display segment in the visible segment. Only at temperatures> 60 ° C the display segment (10.1) appears and signals an immediate danger when touched the support frame (1). It is therefore important for the user that the display area (6) Temperatures> 60 ° C contain a particularly striking warning.
  • the display area (6) is in no way on the proposed shape tied to the segments. It is any other form For example, a reversible liquid crystal display can also be used.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Electric Stoves And Ranges (AREA)

Description

Die Erfindung betrifft eine Gaskochstelle mit mindestens einem Gasbrenner, einer Muldengrundplatte und einem Tragrahmen für Kochgeschirr.The invention relates to a gas hob with at least one gas burner, a trough base plate and a support frame for cookware.

Es ist allgemein bekannt, daß Gaskochstellen mit Topfträgern ausgestattet sind, damit Töpfe, Pfannen o.ä. nicht direkt auf dem Gasbrenner aufliegen. Die Topfträger sind häufig als Glaskeramikplatte oder entnehmbarer Tragrahmen ausgebildet. Der Tragrahmen besteht meistens aus emailliertem Stahl. Derartige Tragrahmen erwärmen sich während des Garens sowohl durch die Strahlungswärme der Gasflamme als auch durch die Wärmeleitung innerhalb des Rahmens stark. Der Tragrahmen muß jedoch, insbesondere zur Reinigung der darunter befindlichen Muldengrundplatte, häufig entnommen werden. Dabei besteht erhöhte Verbrennungsgefahr, wenn eine Berührung bzw. Entnahme unmittelbar bei dem oder nach dem Garen erfolgt. Der Benutzer kann den Tragrahmen auch nach dem Erlöschen der Flamme noch nicht sofort berühren. Er muß sich nur auf seine Erfahrung und sein Gefühl verlassen, ab wann der Tragrahmen gefahrlos entnommen werden kann, ohne zusätzliche Sicherheitsvorkehrungen (Traggriff, Topflappen o.ä.) treffen zu müssen.It is generally known that gas cookers are equipped with pan supports so that pots, Pans or similar do not rest directly on the gas burner. The pan supports are often used as a glass ceramic plate or removable support frame. The supporting frame usually exists made of enamelled steel. Such support frames heat up both during cooking by the radiant heat of the gas flame as well as by the heat conduction within the Frame strong. The support frame must, however, especially for cleaning the underlying Trough base plate, frequently removed. There is an increased risk of burns, if touching or removing takes place immediately during or after cooking. The user can not use the support frame even after the flame has gone out touch immediately. He just has to rely on his experience and his feeling, from when the Support frame can be removed safely, without additional safety precautions (Carrying handle, pot holder or similar).

Bei einer Gaskochstelle mit Glaskeramikplatte tritt ein solches Problem nicht auf. Es ist bekannt, daß die Glaskeramikträgerplatte zum Reinigen nicht entnommen werden kann. Sie besitzt eine glatte Oberfläche, welche problemlos zu säubern ist. Für solche Kochfelder sind unterschiedliche Ausbildungen von Restwärmeanzeigen zum Warnen vor (noch) heißen Kochzonen bekannt, jedoch sind alle diese Restwärmeanzeigen mit einer elektrischen Spannungsquelle verbunden. Die Erfassung der Temperatur der Trägerplatte erfolgt dabei über Temperatursensoren. Die Meßwerte werden über Leitungen an eine elektrische Leuchte weitergegeben (DE 38 00 860 A1). Neben den Leitungen sind auch die Leuchten, welche unterschiedlichen Kochzonen zugeordnet sind, unterhalb der Glaskeramikträgerplatte angeordnet. Eine derartige Anordnung ist nicht einfach auf entnehmbare Tragrahmen übertragbar, weil ein zusätzlicher elektrischer Stromanschluß zum Garen auf einer Gaskochstelle meist nicht notwendig ist und viele Gaskochfelder daher keine Verbindung zur Netzspannung besitzen. Außerdem würde sich auch die wärmeisolierte Verlegung der elektrischen Leitungen unterhalb bzw. innerhalb des Rahmens als recht aufwendig erweisen und das Gerät unnötig verteuern.Such a problem does not occur with a gas hob with a glass ceramic plate. It is known, that the glass ceramic carrier plate cannot be removed for cleaning. she owns a smooth surface that is easy to clean. For such hobs are Different designs of residual heat indicators to warn against (still) hot cooking zones known, however, all of these residual heat indicators are with an electrical voltage source connected. The temperature of the carrier plate is recorded via temperature sensors. The measured values are passed on to an electric light via cables (DE 38 00 860 A1). In addition to the cables, the lights are also different Cooking zones are assigned, arranged below the glass ceramic carrier plate. A such an arrangement is not easily transferable to removable support frames because of an additional one Electrical power connection for cooking on a gas hob is usually not necessary is and many gas hobs therefore have no connection to the mains voltage. Moreover would also be the heat-insulated laying of the electrical lines below or within of the frame prove to be quite complex and make the device unnecessarily expensive.

Die DE 25 45 239 A1 offenbart eine Restwärmeanzeige, bei der eine bereits im Herd vorhandene Anzeige beim Übersteigen der vorbestimmten Temperatur einer Kochzone so angesteuert wird, daß auf der Anzeige eine Warnung vor vorhandener Restwärme erfolgt. In der DE 91 01 823 U1 wird eine Vorrichtung aus Kunststoff zur Anzeige der Restwärme offenbart, bei welcher ein Lampenkolben in besonders ausgebildeten Aufnahmehülsen angeordnet sind. Aber auch hier befindet sich die Vorrichtung zur Restwärmeanzeige unterhalb einer Glaskeramikplatte, so daß die elektrische Zuleitung dort einfach zu realisieren, aber nicht für den Einsatz in oder an einem Tragrahmen geeignet ist.DE 25 45 239 A1 discloses a residual heat indicator in which one that is already present in the stove Display activated when the predetermined temperature of a cooking zone is exceeded is that there is a warning of residual heat on the display. In the DE 91 01 823 U1 discloses a device made of plastic for displaying the residual heat, in which a lamp bulb is arranged in specially designed receiving sleeves. But here too the device for displaying residual heat is located underneath a glass ceramic plate, so that the electrical supply is easy to implement there, but not for the Use in or on a support frame is suitable.

Aus der US 3,186,472 ist eine Gaskochstelle mit mindestens einem Gasbrenner, einer Muldengrundplatte, einem Tragrahmen für Kochgeschirr und mindestens einer Anzeigeeinrichtung für Restwärme bekannt. Die Anzeigeeinrichtung umfasst ein temperaturempfindliches Kontroll- bzw. Schaltelement und ein als elektrisch betätigbares Licht ausgebildetes elektrisch betätigbares Anzeigemittel. Das als Einschalter ausgebildete temperaturempfindliche Kontroll- bzw. Schaltelement ist mittels Federbeinen an dem Tragrahmen lösbar befestigt und befindet sich in Wärmeübertragungsverbindung mit dem Gasbrenner. Das elektrisch betätigbare Anzeigemittel ist mittels eines Halters an einer unterhalb der Muldengrundplatte angeordneten Tropfschale befestigt. Ferner sind das temperaturempfindliche Kontroll- bzw. Schaltelement und das elektrisch betätigbare Anzeigemittel in einem elektrischen Stromkreis angeordnet. Sofern an dem temperaturempfindlichen Kontroll- bzw. Schaltelement eine vorher festgelegte Temperatur überschritten wird, schließt das temperaturempfindliche Kontroll- bzw. Schaltelement den elektrischen Stromkreis und das als Licht ausgebildete elektrisch betätigbare Anzeigemittel wird eingeschaltet, so dass dem Benutzer optisch angezeigt wird, dass der Gasbrenner für eine Berührung noch zu heiß ist. From US 3,186,472 is a gas hob with at least one gas burner, one Trough base plate, a support frame for cookware and at least one display device known for residual heat. The display device includes a temperature sensitive Control or switching element and an electrically actuated light trained electrically actuated display means. The trained as a switch Temperature-sensitive control or switching element is attached to the Support frame releasably attached and is in heat transfer connection with the Gas burner. The electrically actuatable display means is attached to a by means of a holder Drip tray arranged underneath the trough base plate. Furthermore, these are temperature-sensitive control or switching element and the electrically operated Display means arranged in an electrical circuit. If the temperature sensitive Control or switching element exceeded a predetermined temperature the temperature-sensitive control or switching element closes the electrical one Circuit and the electrically operated display means designed as light switched on, so that the user is visually shown that the gas burner for one Touch is still too hot.

Gaskochstellen verfügen zum einen über keine Rest- bzw. Nachwärmeanzeige oder bei Gaskochstellen sind vorhandene Rest- bzw. Nachwärmeanzeigen immer von einer elektrischen Stromversorgung abhängig. Das bedeutet für Gaskochstellen, daß zusätzlich zum Gasanschluß immer ein elektrischer Anschluß vorhanden sein muß. Zumindest bei einfachen und preiswerten Gaskochfeldern ist das aber nicht sinnvoll. Außerdem wären die Zuleitungen an den Tragrahmen nur sehr aufwendig zu verlegen, da auch eine Entnahme dieser Tragrahmen zum Reinigen gewährleistet sein muß. Restwärmeanzeigen der bekannten Art sind nur bedingt und mit zusätzlichen und aufwendigen Maßnahmen auf Gaskochfelder übertragbar.On the one hand, gas hobs have no residual or post-heat indicator or gas hobs existing residual or residual heat indicators are always from an electrical one Power supply dependent. For gas hobs, this means that in addition to Gas connection there must always be an electrical connection. At least with simple ones and inexpensive gas hobs, that doesn't make sense. In addition, the supply lines would be to lay on the support frame only with great effort, since this can also be removed Support frame must be guaranteed for cleaning. Residual heat indicators of the known type are only limited and with additional and complex measures on gas hobs transferable.

Der Erfindung stellt sich somit das Problem, Gaskochstellen mit auflegbaren Tragrahmen für Kochgeschirr derart auszubilden, daß eine Warnung vor zu hohen Temperaturen am Tragrahmen mit geringem Aufwand erfolgt.The invention thus poses the problem of gas cooktops with support frames for Design cookware in such a way that a warning of excessive temperatures on the support frame done with little effort.

Erfindungsgemäß wird dieses Problem durch eine Gaskochstelle mit den im Patentanspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a gas hob with the one in claim 1 specified features solved. Advantageous refinements and developments of the invention result from the following subclaims.

Die mit der Erfindung erreichbaren Vorteile werden durch Integrieren mindestens einer warnenden Anzeigeeinrichtung für Restwärme in einen Tragrahmen erreicht. Die Anzeigeeinrichtung für Restwärme gibt dem Benutzer auch lange nach dem Ausschalten des Gasbrenners eine optimale Sicherheit, weil sie durch ihre direkte thermische Kopplung mit dem Tragrahmen eine Verbrennungsgefahr signalisiert. Ein besonderer Vorteil besteht insbesondere in der sofortigen und zuverlässigen Warnung vor zu hohen Temperaturen des Tragrahmens, ohne Verwendung einer elektrischen Leuchte oder elektronischer Temperatursensoren. In einer vorteilhaften Ausgestaltung ist die Anzeigeeinrichtung zur Vermeidung von Fehlinformationen an einem Ort des Tragrahmens angeordnet, weicher nicht der direkten Strahlungswärme des Gasbrenners ausgesetzt ist. Die Anzeigeeinrichtung für Nach- bzw. Restwärme arbeitet mechanisch und ist ohne eine elektrische Stromversorgung funktionsfähig. Sie sieht in einer besonderen Ausgestaltung eine Kombination eines Bi- oder Memorymetallstreifens mit einer Anzeigefläche vor und ist mit einer temperaturbeständigen, durchsichtigen Abdeckplatte oberhalb der Anzeigefläche ausgestattet. Eine Weiterentwicklung zeigt eine als Linse ausgebildete Abdeckplatte. Durch eine vergrößerte Anzeige ist eine Warnung noch besser erkennbar. Vorteilhaft ist es außerdem, wenn die Anzeigefläche sich aus mehreren Anzeigesegmenten zusammensetzt, welche jeweils unterschiedlichen Temperaturen zugeordnet sind. Je höher die zugeordneten Temperaturen sind, desto auffälliger ist das Anzeigesegment in Farbe und/oder Muster ausgestaltet, damit es sofort eine Warnung beim. Benutzer assoziiert.The advantages achievable with the invention are achieved by integrating at least one warning Display device for residual heat reached in a support frame. The display device for residual heat gives the user a long time after the gas burner is switched off optimal security, because it is a direct thermal coupling with the support frame Risk of burns signaled. A particular advantage is immediate and reliable warning of too high temperatures of the support frame, without use an electric light or electronic temperature sensors. In an advantageous embodiment is the display device to avoid misinformation at a location of the Support frame arranged, which is not exposed to the direct radiant heat of the gas burner is. The display device for residual or residual heat works mechanically and is without an electrical power supply is functional. She sees in a special configuration a combination of a bi or memory metal strip with a display surface in front and is with equipped with a temperature-resistant, transparent cover plate above the display surface. A further development shows a cover plate designed as a lens. By a A larger display makes a warning even more recognizable. It is also advantageous if the display area is composed of several display segments, each of which are assigned to different temperatures. The higher the assigned temperatures are, the more striking the display segment is in color and / or pattern, so that it immediately a warning when. User associated.

Der Bi- oder Memorymetallstreifen ist beispielsweise aus Federstahl gefertigt, um die Bewegung der Anzeigesegmente temperaturabhängig vorzunehmen. Dabei ist mindestens ein Anzeigesegment den Temperaturen > 60°C zugeordnet. Bei diesen Temperaturen beginnt eine unmittelbare Verbrennungsgefahr bei direktem Kontakt der Haut mit dem Tragrahmen. Die Anzeigefläche sollte in einen offenen (von Bediener sichtbaren) Bereich und einen verdeckten (unsichtbaren) Bereich unterteilt sein. Von besonderem Vorteil ist es, wenn das alarmierende Anzeigesegment erst bei Temperaturen > 60°C sichtbar und beim Absinken unter diesen Temperaturwert wieder unsichtbar ist. Der Benutzer erhält beim Erscheinen dieses Anzeigesegmentes die schnelle Information, daß der Tragrahmen zu heiß zum Anfassen ohne Schutzmittel ist.The bi- or memory metal strip is made of spring steel, for example, to keep the movement of the display segments depending on the temperature. There is at least one Display segment assigned to temperatures> 60 ° C. One begins at these temperatures Immediate risk of burns if the skin comes into direct contact with the support frame. The Display area should be in an open area (visible to the operator) and a hidden area (invisible) area. It is particularly advantageous if the alarming Display segment only visible at temperatures> 60 ° C and when it drops below this temperature value is invisible again. The user receives when this display segment appears the quick information that the support frame is too hot to touch without protection is.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:

Figur 1
Tragrahmen für eine Einzelkochstelle mit einem Gasbrenner und einem Anzeigeelement für Nachwärme
Figur 2
Ausgestaltung eines Anzeigeelementes im Schnitt
Figur 3
Anzeigeelement in Draufsicht
An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. Show it:
Figure 1
Support frame for a single hotplate with a gas burner and a display element for post-heating
Figure 2
Design of a display element on average
Figure 3
Display element in top view

Die Figur 1 zeigt eine Einzelkochstelle mit einem Gasbrenner (2), einer den Gasbrenner (2) umgebenen Muldengrundplatte (8) und einem Tragrahmen (1) zum Aufsetzen von Kochgeschirr oberhalb des Gasbrenners (2). Derartige Muldengrundplatten (8) besitzen zumeist eine Oberfläche, die emailliert oder aus Edelstahl gefertigt ist. Eine Anzeigeeinrichtung (3) für Nach- bzw. Restwärme ist direkt in den Tragrahmen (1) integriert. In der Anzeigeeinrichtung (3) ist ein Mittel (5) enthalten, welches eine direkte thermische Verbindung zum Tragrahmen (1) aufweist. Die Anzeigeeinrichtung (3) arbeitet zuverlässig auf mechanischem Weg ohne elektrische Spannungsversorgung.FIG. 1 shows a single hotplate with a gas burner (2), one the gas burner (2) surrounded bowl base plate (8) and a support frame (1) for putting on cookware above the gas burner (2). Such trough base plates (8) usually have one Surface that is enamelled or made of stainless steel. A display device (3) for night or residual heat is integrated directly into the support frame (1). In the display device (3) is a Contain means (5) which has a direct thermal connection to the support frame (1). The display device (3) works reliably mechanically without electrical Power supply.

Der Tragrahmen (1) besteht aus einem äußeren Rahmenbereich (1.1) und mehreren, mit diesem verbundenen und strahlenförmig zum Gasbrenner (2) weisenden Auflagestegen (1.2). The support frame (1) consists of an outer frame area (1.1) and several, with this connected and radiating to the gas burner (2) facing support webs (1.2).

Um ein aussagefähiges Signalisieren der Temperatur für einen möglichst umfangreichen Bereich des Tragrahmens (1) vornehmen zu können, ist das Anzeigeelement (3) für Nachwärme je nach Temperaturresistenz in einem Bereich angeordnet, welcher nicht der direkten Strahlungswärme des Gasbrenners (2) ausgesetzt ist. Als optimale Anordnung ist das Anzeigeelement (3) daher im äußeren Rahmenbereich (1.1) angeordnet, im Schnittpunkt mit einem Auflagesteg (1.2). Der äußere Rahmenbereich (1.1) weist dazu eine Aussparung (4) zur Aufnahme des Anzeigeelementes (3) auf. Bei großen Tragrahmen, welche um mehrere Gasbrenner (2) angeordnet sind, ist es durchaus möglich auch mehrere Anzeigeelemente (3) an unterschiedlichen Orten einzusetzen. Dadurch erhöht sich die Genauigkeit der Warnung für einzelne Teilbereiche des Tragrahmens (1 ). Wenn beispielsweise nur ein Gasbrenner (2) in Betrieb ist bzw. war, kann der Tragrahmen (1) eventuell an einem anderen Ende berührt werden, ohne vorher besondere Sicherheitsvorkehrungen treffen zu müssen.In order to provide a meaningful signaling of the temperature for the largest possible To be able to make area of the support frame (1) is the display element (3) for Depending on the temperature resistance, residual heat is arranged in an area which is not the is directly exposed to radiant heat from the gas burner (2). This is the optimal arrangement Display element (3) is therefore arranged in the outer frame area (1.1), at the intersection with a footbridge (1.2). For this purpose, the outer frame area (1.1) has a recess (4) Recording the display element (3). With large support frames, which have several gas burners (2) are arranged, it is quite possible to have several display elements (3) different places. This increases the accuracy of the warning for individual sections of the support frame (1). For example, if only one gas burner (2) in Is or was in operation, the support frame (1) can possibly be touched at another end, without having to take any special precautions.

Die Figur 2 zeigt einen Schnitt durch einen einfachen Aufbau eines Anzeigeelementes (3). Das Anzeigeelement (3) besteht aus mehreren Einzelteilen. Insbesondere sind ein Metallstreifen (5), eine mit diesem verbundene, bewegliche Anzeigefläche (6) und eine die Anzeigefläche (6) abdeckende durchsichtige Abdeckplatte (7) notwendige Bestandteile. Diese Bestandteile (5, 6, 7) sind einzeln in eine Aussparung (4) des Tragrahmens (1) eingesetzt und dann mit dem Tragrahmen (1) wasserdicht verbunden. Noch vorteilhafter ist es, wenn das Anzeigeelement (3) eine vollständige Baugruppe mit all seinen Bestandteilen (5, 6, 7) darstellt, welche in einem eigenen Gehäuse (9) angeordnet ist. Ein solches Bauteil (3) wird lösbar oder unlösbar in die Aussparung (4) des Tragrahmens (1) eingesetzt.Figure 2 shows a section through a simple structure of a display element (3). The Display element (3) consists of several individual parts. In particular, are a metal strip (5), a movable display surface (6) connected to this and one the display surface (6) covering transparent cover plate (7) necessary components. These components (5, 6, 7) are individually inserted in a recess (4) of the support frame (1) and then connected to the support frame (1) in a watertight manner. It is even more advantageous if the display element (3) represents a complete assembly with all its components (5, 6, 7), which is arranged in its own housing (9). Such a component (3) becomes detachable or permanently inserted into the recess (4) of the support frame (1).

Der Metallstreifen (5) ist vorzugsweise aus einer Bi- oder Memorymetallfeder gefertigt. Dadurch wird die temperaturabhängige Bewegung von Anzeigesegmenten (10.1 -10.n) der Anzeigefläche (6) exakt durchgeführt. Durch die am Tragrahmen (1) steigende Temperatur dehnt sich der Metallstreifen (5) aus und bewegt die Anzeigesegmente (10.1 -1 0.n) der Anzeigefläche (6). Diese können sich entweder in einer Kreis- oder in einer linearen Bahn bewegen. Die richtige Information gelangt schnell an den Benutzer des Kochfeldes, ohne daß eine Verbindung zum elektrischen Stromnetz vorhanden sein muß. Die Anzeigesegmente (10.1 -10.n) sollten durch unterschiedliche Farb- und/oder Musterflächen gekennzeichnet sein, wobei jedem Segment (10.1, 10.2, - 10.n) jeweils eine Temperatur bzw. ein Temperaturbereich zugeordnet ist. Das Anzeigesegment (10.1), welches zu den Temperaturen > 60°C gehört, sollte besonders auffällig sein, weil ein direkter Kontakt mit dem Tragrahmen (1) ab diesen Temperaturen eine unmittelbare Verbrennungsgefahr zur Folge hat. Es sind unterschiedliche Ausbildungen des wamenden Anzeigesegmentes (10.1 ) einsetzbar. Beispielsweise können seine Farben mit steigenden Temperaturen dunkler werden oder besonders auffällige Muster besitzen. Besonders eindeutig ist es, wenn die Anzeigefläche (6) in einen sichtbaren und einen unsichtbaren Bereich unterteilt ist. Das Anzeigesegment (10.1) ist dann erst bei den bedrohlichen Temperaturen sichtbar und beim Absinken unter diese Temperaturen verschwindet es wieder in den von außen unsichtbaren Bereich. Wenn dann noch eine besonders auffällige Warnfarbe für das Anzeigesegment (10.1) gewählt wird, bekommt der Benutzer auf einen Blick die schnelle und genaue Information, daß der Tragrahmen zu heiß zum Anfassen ohne Schutzmittel ist.The metal strip (5) is preferably made from a bi- or memory metal spring. Thereby becomes the temperature-dependent movement of display segments (10.1 -10.n) of the display area (6) performed exactly. Due to the increasing temperature on the support frame (1) the metal strip (5) extends and moves the display segments (10.1 -1 0.n) of the display surface (6). These can either move in a circular or a linear path. The correct information quickly gets to the user of the hob without a connection to the electrical power grid must be available. The display segments (10.1 -10.n) should be characterized by different color and / or pattern areas, each Each segment (10.1, 10.2, - 10.n) is assigned a temperature or a temperature range is. The display segment (10.1), which belongs to temperatures> 60 ° C, should be special be conspicuous because a direct contact with the support frame (1) from these temperatures direct risk of burns. There are different trainings of the warning display segment (10.1) can be used. For example, its colors can include rising temperatures become darker or have particularly striking patterns. It is particularly clear when the display surface (6) is in a visible and an invisible Area is divided. The display segment (10.1) is then only for the threatening ones Temperatures visible and when it drops below these temperatures it disappears again the area invisible from the outside. Then if a particularly striking warning color for the display segment (10.1) is selected, the user gets the quick at a glance and precise information that the support frame is too hot to touch without protective agents.

Die mindestens in einem Teilbereich durchsichtig ausgebildete Abdeckplatte (7) dient dem Schutz des Anzeigeelementes (3) vor äußeren mechanischen und chemischen Beanspruchungen. Sie wird derart mit dem Anzeigeelement (3) verbunden, daß dieses im oberen Bereich des Tragrahmens (1) oder seines eigenen Gehäuses wasserdicht abgeschlossen ist. Damit wird verhindert, daß Verschmutzungen, welche zu Störungen bei der Anzeige führen können, in das Innere des Anzeigeelementes (3) gelangen. Um die Warnung vor den zu hohen Temperaturen des Tragrahmens (1) deutlich zu erkennen, ist eine Ausbildung der Abdeckplatte (7) als Linse sinnvoll. Dadurch wird eine optische Vergrößerung der ansonsten relativ kleinen warnenden Anzeigefläche (6) geschaffen.The cover plate (7), which is transparent in at least one partial area, serves the purpose Protection of the display element (3) against external mechanical and chemical stresses. It is connected to the display element (3) such that it is in the upper Area of the support frame (1) or its own housing is watertight. This prevents soiling that leads to malfunctions in the display can get into the interior of the display element (3). To the warning of the too high Clearly recognizable temperatures of the support frame (1) is a design of the cover plate (7) useful as a lens. This makes an optical magnification of the otherwise relative small warning display area (6) created.

Da beim Garen neben der Muldengrundplatte (8) auch der Tragrahmen (1) häufig verschmutzt, ist es von Vorteil, wenn letzterer gemeinsam mit dem Anzeigeelement (3) eine spülmaschinenfeste Einheit bildet. Dadurch kann er nach dem Entnehmen ohne großen Arbeitsaufwand gründlich gereinigt werden. Allerdings muß dann gewährleistet sein, daß an keiner Stelle Wasser in das Anzeigeelement (3) eindringen kann. Es ist aber ebenso möglich, das Anzeigeelement (3) als separates Bauteil auszubilden und in einem wasserdichten Gehäuse (9) anzuordnen. Das Gehäuse (9) ist wasserdicht mit der durchsichtigen Abdeckplatte (7) verbunden. In einer solchen Ausführungsform ist es aus dem Tragrahmen (1) entnehmbar. Tragrahmen (1) und Anzeigeelement (3) sind dann bei Bedarf separat zu reinigen.Since the support frame (1) is often dirty during cooking in addition to the trough base plate (8), it is advantageous if the latter, together with the display element (3), is dishwasher-safe Unity forms. This means that it can be removed without much effort after removal be cleaned thoroughly. However, it must then be ensured that nowhere Water can penetrate into the display element (3). But it is also possible to use the display element (3) to be designed as a separate component and to be arranged in a watertight housing (9). The housing (9) is watertightly connected to the transparent cover plate (7). In In such an embodiment, it can be removed from the supporting frame (1). Support frame (1) and display element (3) must then be cleaned separately if necessary.

In der Figur 3 ist eine Anzeigefläche (6) in Draufsicht dargestellt. Sie weist ein sichtbares Segment auf, in dem das Anzeigesegment (10.1 ) bei zu hohen Temperaturen erscheint. Dieses sichtbare Segment nimmt in diesem Beispiel ca. ein Viertel der gesamten Anzeigefläche (6) ein. Der übrige Bereich ist von oben unsichtbar. Natürlich sind auch andere Unterteilungen realisierbar. Durch die in Bewegung befindlichen Anzeigesegmente (10.1 -10.n) erscheint immer ein anderes Anzeigesegment im sichtbaren Segment. Erst bei Temperaturen > 60°C erscheint das Anzeigesegment (10.1) und signalisiert eine unmittelbare Gefahr bei Berührung des Tragrahmens (1). Für den Benutzer ist es deshalb wichtig, daß die Anzeigefläche (6) bei Temperaturen > 60°C eine besonders auffällige Warnung beinhaltet. Besonders einfach ist es zuzuordnen, wenn das sichtbare Segment der Anzeigefläche (6) bei einer Abkühlung des Tragrahmens (1) unter diese kritische Temperatur wieder bedeutend unscheinbarere Farben zeigt und nicht mehr als Warnung verstanden wird. Die Anzeigefläche (6) ist in keiner Weise an die vorgeschlagene Form mit den Segmenten gebunden. Es ist jede andere Ausgestaltung, beispielsweise auch eine reversible Flüssigkristallanzeige einsetzbar.In Figure 3, a display surface (6) is shown in plan view. It has a visible segment in which the display segment (10.1) appears when the temperature is too high. This visible segment takes up about a quarter of the total display area (6) in this example. The rest of the area is invisible from above. Of course, there are other subdivisions realizable. Due to the moving display segments (10.1 -10.n) appears always a different display segment in the visible segment. Only at temperatures> 60 ° C the display segment (10.1) appears and signals an immediate danger when touched the support frame (1). It is therefore important for the user that the display area (6) Temperatures> 60 ° C contain a particularly striking warning. It is particularly easy assign if the visible segment of the display surface (6) when the Support frame (1) below this critical temperature again significantly less nondescript colors shows and is no longer understood as a warning. The display area (6) is in no way on the proposed shape tied to the segments. It is any other form For example, a reversible liquid crystal display can also be used.

Claims (9)

  1. Gas cooker, having at least one gas burner, a recessed base, a supporting frame for cooking utensils and at least one indicator for indicating residual heat, characterised in that the indicator (3) is incorporated in the supporting frame (1) and has at least one means, which is thermally coupled to the supporting frame, and no connection to an electric power supply.
  2. Gas cooker according to claim 1, characterised in that the means (5) is in the form of a bimetallic or memory strip and is connected to a display area (6).
  3. Gas cooker according to claim 1 or 2, characterised in that the indicator (3) is disposed at a location of the supporting frame (1) which is not exposed to direct radiation heat of the gas burner (2).
  4. Gas cooker according to at least one of claims 1 to 3, characterised in that a temperature-resistant, transparent cover plate (7) is disposed above the display area (6).
  5. Gas cooker according to claim 4, characterised in that the cover plate (7) is in the form of a magnifying lens.
  6. Gas cooker according to at least one of claims 2 to 5, characterised in that the metal strip (5) is in the form of a spring which is connected to display segments (10.1 - 10.n), each display segment (10.1 - 10.n) being associated with different temperatures on the display area (6).
  7. Gas cooker according to claims 1 to 6, characterised in that at least one display segment (10.1) is associated with the temperatures > 60° C and indicates a hot supporting frame on the display area (6).
  8. Gas cooker according to at least one of claims 1 to 7, characterised in that the display segment (10.1) is displaceable and is only visible on the display area (6) at temperatures > 60° C.
  9. Gas cooker according to at least one of claims 1 to 8, characterised in that the display segments (10.1 - 10.n) have different colours for different temperatures.
EP99110367A 1998-06-05 1999-05-28 Gas cooker with support frame Expired - Lifetime EP0962705B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19825140A DE19825140A1 (en) 1998-06-05 1998-06-05 Gas hob with support frame
DE19825140 1998-06-05

Publications (3)

Publication Number Publication Date
EP0962705A2 EP0962705A2 (en) 1999-12-08
EP0962705A3 EP0962705A3 (en) 2000-06-07
EP0962705B1 true EP0962705B1 (en) 2003-11-19

Family

ID=7870007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110367A Expired - Lifetime EP0962705B1 (en) 1998-06-05 1999-05-28 Gas cooker with support frame

Country Status (4)

Country Link
EP (1) EP0962705B1 (en)
DE (2) DE19825140A1 (en)
ES (1) ES2210896T3 (en)
PT (1) PT962705E (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024236A1 (en) * 2009-05-28 2010-12-02 E.G.O. Elektro-Gerätebau GmbH Gas hob with a hob plate and at least one hob

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186472A (en) * 1962-10-22 1965-06-01 Frank S Caravella Signal system
DE2545239A1 (en) 1975-10-09 1977-04-21 Bbc Brown Boveri & Cie Temp. regulator for oven heating elements - sets temp. by switching resistors identified by LEDs into bridge with temp. sensitive resistor
DE3800860A1 (en) 1987-02-13 1988-08-25 Pistor & Boss Gmbh Residual heat indicator device
DE9101823U1 (en) * 1991-02-17 1991-05-29 Pistor + Boss GmbH, 5880 Lüdenscheid Plastic device for displaying the residual heat of hotplates
DE29619581U1 (en) * 1996-11-13 1997-03-13 Schott Glaswerke, 55122 Mainz Glass ceramic cooktop with sensor-controlled display devices for open, atmospheric gas burners as cooking zones that include fireplaces
IT1296492B1 (en) * 1997-11-21 1999-06-25 Whirlpool Co SYSTEM TO INDICATE THE RESIDUAL HEAT OF THE GRIDS OF DOMESTIC GAS COOKING APPLIANCES

Also Published As

Publication number Publication date
EP0962705A3 (en) 2000-06-07
DE59907767D1 (en) 2003-12-24
EP0962705A2 (en) 1999-12-08
DE19825140A1 (en) 1999-12-09
ES2210896T3 (en) 2004-07-01
PT962705E (en) 2004-04-30

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