EP1473521A1 - Cooking oven with spraying nozzles for cleaning of the oven cavity - Google Patents

Cooking oven with spraying nozzles for cleaning of the oven cavity Download PDF

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Publication number
EP1473521A1
EP1473521A1 EP04008540A EP04008540A EP1473521A1 EP 1473521 A1 EP1473521 A1 EP 1473521A1 EP 04008540 A EP04008540 A EP 04008540A EP 04008540 A EP04008540 A EP 04008540A EP 1473521 A1 EP1473521 A1 EP 1473521A1
Authority
EP
European Patent Office
Prior art keywords
feed line
spraying
water connection
water
spray head
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.)
Granted
Application number
EP04008540A
Other languages
German (de)
French (fr)
Other versions
EP1473521B1 (en
Inventor
Lutz Riefenstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welbilt Deutschland GmbH
Original Assignee
Convotherm Elektrogeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Convotherm Elektrogeraete GmbH filed Critical Convotherm Elektrogeraete GmbH
Publication of EP1473521A1 publication Critical patent/EP1473521A1/en
Application granted granted Critical
Publication of EP1473521B1 publication Critical patent/EP1473521B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • F24C14/005—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning using a cleaning liquid

Definitions

  • the invention relates to a device for heat treatment of food with a cooking space in one formed by a door lockable housing is, and a spraying or spraying device for spraying and cleaning the cooking space, the spray or Sprayer a spray head and a flexible feed line includes that to a water connection of the housing connected.
  • a device of this type is known from DE-37 22 282 C2.
  • the disadvantage of this known device is that that the water connection of the housing is just below of the housing base, so that the spray head due the relatively long supply line also on the Floor or the footprint of the device or in adjacent, Areas containing or leading waste water can be filed.
  • the Drinking water pipe could be the one in the drinking water pipe resulting negative pressure thus dirty water into the drinking water network suck.
  • hand shower connections either with complex safety devices to protect against backflow or this situation through other constructive measures to avoid in principle. Both measures require one relatively high effort.
  • the object of the invention is a particularly simple embodiment for protection against backflow of dirty water to create in the drinking water network.
  • This task is based on a device of the beginning explained type solved according to the invention in that the water connection for the flexible supply line in the Located near the top of the housing and the feed line has a length that is shorter than the distance the water connection to ground-level dirty water areas is.
  • This can be done in the area of the device or the soil in the vicinity of which there is wastewater-carrying water or containing areas or containers can.
  • raising the water supply achieves that even a drooping spray head not in one in the area Immerse the dirty water area of the device can, so the risk of sucking back dirty water in the drinking water network is eliminated.
  • a safety device between the water connection and the supply line is used against backflow.
  • the security device against backflow be a tube aerator that is simple and therefore represents inexpensive ventilation fitting.
  • a return system be provided in the manner of a gallows shower.
  • a further advantageous embodiment of the invention provides before that a hanger for the spray head below the safety device against backflow is. Due to the lower hanging device for the Spray head is reached in the case of the leaky safety device against backflow in the supply line Any water is leaking to the outside.
  • the Design according to the invention now consists in that the Water connection 2 arranged in the uppermost area of the cooking appliance and the feed line 3 has such a length that even with the spray head hanging down, groundwater areas can reach.
  • suspension device 5 provided near the water connection 2
  • suspension device for the spray head at the lower end of the cooking device is provided so that the feed line is stretched to is aligned below.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The heat treatment device (1) has a water connection (2) for a flexible supply line (3) with a spray head (4) on the end. The water connection is fitted in the top region of the oven housing, and the length of the supply line is short enough to ensure that the spray head is kept clear of the region adjacent to the floor, where dirty water may have collected.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Wärmebehandlung von Nahrungsmitteln mit einem Garraum, der in einem mittels einer Tür verschließbaren Gehäuse ausgebildet ist, sowie einer Spritz- oder Sprühvorrichtung zum Aussprühen und Reinigen des Garraumes, wobei die Spritz- oder Sprühvorrichtung einen Sprühkopf und eine flexible Zuführungsleitung umfasst, die an einen Wasseranschluss des Gehäuses angeschlossen ist.The invention relates to a device for heat treatment of food with a cooking space in one formed by a door lockable housing is, and a spraying or spraying device for spraying and cleaning the cooking space, the spray or Sprayer a spray head and a flexible feed line includes that to a water connection of the housing connected.

Eine Vorrichtung dieser Art ist aus der DE-37 22 282 C2 bekannt. Bei dieser bekannten Vorrichtung besteht der Nachteil, dass der Wasseranschluss des Gehäuses sich knapp unterhalb des Gehäusebodens befindet, so dass der Sprühkopf aufgrund der verhältnismäßig langen Zuführungsleitung auch auf dem Boden bzw. der Aufstellfläche des Gerätes oder in angrenzenden, Schmutzwasser enthaltenden oder führendenden Bereichen abgelegt werden kann. Im Falle eines Rohrbruches der Trinkwasserleitung könnte der in der Trinkwasserrohrleitung entstehende Unterdruck somit Schmutzwasser in das Trinkwassernetz saugen. Um solche Situationen sicher zu verhindern, wird seitens der technischen Normen vorgeschrieben, derartige Handbrauseanschlüsse entweder mit aufwendigen Sicherheitseinrichtungen gegen ein Rückfließen abzusichern oder diese Situation durch andere konstruktive Maßnahmen grundsätzlich zu vermeiden. Beide Maßnahmen erfordern einen verhältnismäßig hohen Aufwand. A device of this type is known from DE-37 22 282 C2. The disadvantage of this known device is that that the water connection of the housing is just below of the housing base, so that the spray head due the relatively long supply line also on the Floor or the footprint of the device or in adjacent, Areas containing or leading waste water can be filed. In the event of a pipe break the Drinking water pipe could be the one in the drinking water pipe resulting negative pressure thus dirty water into the drinking water network suck. To safely prevent such situations, is prescribed by the technical standards, such hand shower connections either with complex safety devices to protect against backflow or this situation through other constructive measures to avoid in principle. Both measures require one relatively high effort.

Aufgabe der Erfindung ist es, eine besonders einfache Ausgestaltung für die Sicherung gegen ein Rückfließen von Schmutzwasser in das Trinkwassernetz zu schaffen.The object of the invention is a particularly simple embodiment for protection against backflow of dirty water to create in the drinking water network.

Diese Aufgabe wird ausgehend von einer Vorrichtung der eingangs erläuterten Art erfindungsgemäß dadurch gelöst, dass der Wasseranschluss für die flexible Zuführungsleitung in der Nähe der Oberkante des Gehäuses angeordnet ist und die Zuführungsleitung eine Länge aufweist, die kürzer als der Abstand des Wasseranschlusses zu bodennahen Schmutzwasserbereichen ist. Dies kann im Bereich der Aufstellfläche des Gerätes bzw. des Bodens sein, in dessen Umfeld sich schmutzwasserführende oder enthaltenden Bereiche oder Behälter befinden können. Hier wird durch eine einfache Maßnahme, nämlich das Höherlegen des Wasseranschlusses erreicht, dass auch ein herabhängender Sprühkopf nicht in einen im Umfeld des Gerätes befindlichen Schmutzwasserbereich eintauchen kann, so dass die Gefahr eines Rücksaugens von Schmutzwasser in das Trinkwassernetz beseitigt ist.This task is based on a device of the beginning explained type solved according to the invention in that the water connection for the flexible supply line in the Located near the top of the housing and the feed line has a length that is shorter than the distance the water connection to ground-level dirty water areas is. This can be done in the area of the device or the soil in the vicinity of which there is wastewater-carrying water or containing areas or containers can. Here, through a simple measure, namely raising the water supply achieves that even a drooping spray head not in one in the area Immerse the dirty water area of the device can, so the risk of sucking back dirty water in the drinking water network is eliminated.

Gemäß einer Weiterbildung der Erfindung ist vorgesehen, dass zwischen Wasseranschluss und Zuführungsleitung eine Sicherungseinrichtung gegen Rückfließen eingesetzt ist. In weiterer vorteilhafter Ausgestaltung kann die Sicherungseinrichtung gegen Rückfließen ein Rohrbelüfter sein, der eine einfache und daher preiswerte Belüftungsarmatur darstellt.According to a development of the invention, it is provided that A safety device between the water connection and the supply line is used against backflow. In another In an advantageous embodiment, the security device against backflow be a tube aerator that is simple and therefore represents inexpensive ventilation fitting.

Um das Eintauchen des Sprühkopfes in einen Schmutzwasserbereich wirkungsvoll zu verhindern, kann in weiterer Ausgestaltung der Erfindung für die Zuführungsleitung ein Rückholsystem nach Art einer Galgenbrause vorgesehen sein.To immerse the spray head in a dirty water area Preventing effectively can be done in a further embodiment of the invention for the supply line a return system be provided in the manner of a gallows shower.

Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, dass eine Aufhängevorrichtung für den Sprühkopf unterhalb der Sicherungseinrichtung gegen Rückfließen angeordnet ist. Durch die tiefergelegene Aufhängevorrichtung für den Sprühkopf wird erreicht, dass bei der undichten Sicherungseinrichtung gegen Rückfließen das in der Zuführungsleitung befindliche Wasser nach außen austritt.A further advantageous embodiment of the invention provides before that a hanger for the spray head below the safety device against backflow is. Due to the lower hanging device for the Spray head is reached in the case of the leaky safety device against backflow in the supply line Any water is leaking to the outside.

Die Erfindung ist nachfolgend anhand von Ausführungsbeispielen näher erläutert. In der Zeichnung zeigen:

Fig. 1
eine Vorrichtung nach dem Stande der Technik;
Fig. 2
eine erste Ausführungsform der erfindungsgemäßen Vorrichtung; und
Fig. 3
eine zweite Ausführungsform einer solchen Vorrichtung.
The invention is explained in more detail below on the basis of exemplary embodiments. The drawing shows:
Fig. 1
a device according to the prior art;
Fig. 2
a first embodiment of the device according to the invention; and
Fig. 3
a second embodiment of such a device.

Bei der bekannten Vorrichtung gemäß Figur 1, weist ein mit 1 bezeichnetes Gargerät einen Wasseranschluss 2 auf, der sich im unteren Bereich des Gargerätes befindet. Von diesem Wasseranschluss geht eine flexible Zuführungsleitung 3 aus, die zu einem Sprühkopf 4 führt, der in einer Aufhängevorrichtung 5 am oberen Teil des Gargerätes aufgehängt ist. Wenn hier der Sprühkopf 4 nicht in die Halterung 5 eingehängt wird, sondern lose abgelegt ist, so kann er in nahegelegene Schmutzwasserbereiche gelangen, wodurch bei Bruch einer Trinkwasserleitung Schmutzwasser in diese Leitung gelangen kann bzw. eine aufwendige Sicherheitseinrichtung zu dessen Verhinderung eingesetzt werden muss.In the known device according to FIG. 1, one with 1 designated cooking appliance on a water connection 2, the located in the lower area of the cooking appliance. From this water connection goes out a flexible feed line 3, the leads to a spray head 4, which in a suspension device 5 is suspended from the upper part of the cooking appliance. If here Spray head 4 is not hooked into the holder 5, but is stored loosely, so it can be in nearby dirty water areas reach, whereby if a drinking water pipe breaks Dirty water can get into this line or a elaborate safety device to prevent it must be used.

Bei den Ausführungsbeispielen nach den Figuren 2 und 3 sind für gleiche Teile gleiche Bezugszeichen verwendet worden. Die erfindungsgemäße Ausgestaltung besteht nun darin, dass der Wasseranschluss 2 im obersten Bereich des Gargerätes angeordnet ist und die Zuführungsleitung 3 eine solche Länge aufweist, dass selbst bei abhängendem Sprühkopf dieser nicht in bodennahe Schmutzwasserbereiche gelangen kann.In the exemplary embodiments according to FIGS. 2 and 3 the same reference numerals have been used for the same parts. The Design according to the invention now consists in that the Water connection 2 arranged in the uppermost area of the cooking appliance and the feed line 3 has such a length that even with the spray head hanging down, groundwater areas can reach.

Bei der Ausführungsform nach Figur 2 ist die Aufhängevorrichtung 5 in der Nähe des Wasseranschlusses 2 vorgesehen, während bei der Ausgestaltung nach Figur 3 die Aufhängevorrichtung für den Sprühkopf am unteren Ende des Gargerätes vorgesehen ist, so dass die Zuführungsleitung gestreckt nach unten ausgerichtet ist.In the embodiment of Figure 2 is the suspension device 5 provided near the water connection 2, while in the embodiment of Figure 3, the suspension device for the spray head at the lower end of the cooking device is provided so that the feed line is stretched to is aligned below.

Bei beiden Ausführungsformen ist eine schematisch angedeutete Sicherungseinrichtung gegen Rückfließen 6 zwischen Wasseranschluss 2 und Zuführungsleitung 3 oberhalb der Aufhängevorrichtung 5 des Sprühkopfes 4 vorgesehen. Es handelt sich hier um die verhältnismäßig billige Ausführungsform eines Rohrbelüfters, um die seitens der technischen Normen geforderte Sicherheit gegen Rückfließen zusätzlich zu erhöhen.In both embodiments, one is indicated schematically Protection against backflow 6 between the water connection 2 and feed line 3 above the suspension device 5 of the spray head 4 is provided. It deals is the relatively cheap embodiment of a Pipe aerator to meet the requirements of the technical standards Additional security against backflow increases.

Claims (5)

Vorrichtung zur Wärmebehandlung von Nahrungsmitteln mit einem Garraum, der in einem mittels einer Tür verschließbaren Gehäuse ausgebildet ist, sowie einer Spritz- oder Sprühvorrichtung zum Aussprühen und Reinigen des Garraumes, wobei die Spritz- oder Sprühvorrichtung einen Sprühkopf und eine flexible Zuführungsleitung umfasst, die an einen Wasseranschluss des Gehäuses angeschlossen ist, dadurch gekennzeichnet, dass der Wasseranschluss (2) für die flexible Zuführungsleitung (3) in der Nähe der Oberkante des Gehäuses (1) angeordnet ist und die Zuführungsleitung (3) eine Länge aufweist, die kürzer als der Abstand des Wasseranschlusses (2) zu bodennahen Schmutzwasserbereichen ist.Device for the heat treatment of foodstuffs with a cooking space which is formed in a housing which can be closed by means of a door, and a spraying or spraying device for spraying and cleaning the cooking space, the spraying or spraying device comprising a spray head and a flexible feed line which connects to a Water connection of the housing is connected, characterized in that the water connection (2) for the flexible feed line (3) is arranged near the upper edge of the housing (1) and the feed line (3) has a length that is shorter than the distance of the Water connection (2) to ground-level dirty water areas. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwischen Wasseranschluss (2) und Zuführungsleitung (3) eine Sicherungseinrichtung gegen Rückfließen (6) eingesetzt ist.Device according to claim 1, characterized in that a safety device against backflow (6) is inserted between the water connection (2) and the feed line (3). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Sicherungseinrichtung gegen Rückfließen ein Rohrbelüfter ist.Apparatus according to claim 2, characterized in that the safety device against backflow is a tube aerator. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass für die Zuführungsleitung (3) ein Rückholsystem nach Art einer Galgenbrause vorgesehen ist.Device according to one of claims 1 to 3, characterized in that a return system in the manner of a gallows shower is provided for the feed line (3). Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass eine Aufhängevorrichtung (5) unterhalb der Sicherungseinrichtung gegen Rückfließen (6) angeordnet ist.Device according to one of claims 1 to 4, characterized in that a suspension device (5) is arranged below the safety device against backflow (6).
EP04008540A 2003-04-30 2004-04-08 Cooking oven with spraying nozzles for cleaning of the oven cavity Expired - Lifetime EP1473521B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10319587 2003-04-30
DE10319587A DE10319587B3 (en) 2003-04-30 2003-04-30 Heat treatment device for foodstuffs has water connection for flexible supply line in top region of housing, this line being shorter than distance from connection to floor

Publications (2)

Publication Number Publication Date
EP1473521A1 true EP1473521A1 (en) 2004-11-03
EP1473521B1 EP1473521B1 (en) 2011-06-15

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EP04008540A Expired - Lifetime EP1473521B1 (en) 2003-04-30 2004-04-08 Cooking oven with spraying nozzles for cleaning of the oven cavity

Country Status (4)

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EP (1) EP1473521B1 (en)
JP (1) JP3927195B2 (en)
AT (1) ATE513167T1 (en)
DE (1) DE10319587B3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013012459U1 (en) 2012-02-02 2017-01-09 Convotherm-Elektrogeräte Gmbh Flexible sequence control for an automatic cleaning system for a cooking device
DE102016206483A1 (en) 2016-04-18 2017-10-19 Convotherm Elektrogeräte GmbH A method of determining a cleaning need and quality management monitoring system of a commercial cooking appliance, and a commercial cooking appliance
DE102016108724A1 (en) * 2016-05-11 2017-11-16 Rational Aktiengesellschaft Cooking appliance and method for controlling a cooking appliance
DE102022114269A1 (en) 2022-06-07 2023-12-07 Rational Aktiengesellschaft Cooking device with a self-cleaning system and a method for changing cleaning parameters for the cooking device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003562A1 (en) 2008-01-09 2009-07-16 Convotherm Elektrogeräte GmbH Cooking item carrier for multiple skewers tipped with finger food, has carrier plate and supports, made of carrier plates, provided for skewers and finger food, where two support strips are arranged in pair wise

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722282A1 (en) * 1986-11-24 1988-06-01 Convotherm Elektrogeraete DEVICE FOR HEAT TREATMENT OF FOOD
DE8902508U1 (en) * 1989-03-02 1989-05-18 Lechmetall Landsberg GmbH, 8910 Landsberg Device for cleaning the cooking chamber of a cooking appliance
DE9203722U1 (en) * 1992-03-19 1992-06-04 Fuhst, Wolfgang, 7730 Villingen-Schwenningen Deck oven with oil, gas or electric heating

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722282A1 (en) * 1986-11-24 1988-06-01 Convotherm Elektrogeraete DEVICE FOR HEAT TREATMENT OF FOOD
DE8902508U1 (en) * 1989-03-02 1989-05-18 Lechmetall Landsberg GmbH, 8910 Landsberg Device for cleaning the cooking chamber of a cooking appliance
DE9203722U1 (en) * 1992-03-19 1992-06-04 Fuhst, Wolfgang, 7730 Villingen-Schwenningen Deck oven with oil, gas or electric heating

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013012459U1 (en) 2012-02-02 2017-01-09 Convotherm-Elektrogeräte Gmbh Flexible sequence control for an automatic cleaning system for a cooking device
US9677769B2 (en) 2012-02-02 2017-06-13 Convotherm Elektrogeraete Gmbh Flexible sequence control and method for automated cleaning system of a cooking device
DE102016206483A1 (en) 2016-04-18 2017-10-19 Convotherm Elektrogeräte GmbH A method of determining a cleaning need and quality management monitoring system of a commercial cooking appliance, and a commercial cooking appliance
WO2017182214A1 (en) 2016-04-18 2017-10-26 Convotherm-Elektrogeräte Gmbh Method for determining a needed cleaning, quality management/monitoring system of a commercial cooking device, and commercial cooking device
DE102016108724A1 (en) * 2016-05-11 2017-11-16 Rational Aktiengesellschaft Cooking appliance and method for controlling a cooking appliance
DE102022114269A1 (en) 2022-06-07 2023-12-07 Rational Aktiengesellschaft Cooking device with a self-cleaning system and a method for changing cleaning parameters for the cooking device

Also Published As

Publication number Publication date
EP1473521B1 (en) 2011-06-15
ATE513167T1 (en) 2011-07-15
JP3927195B2 (en) 2007-06-06
JP2004333118A (en) 2004-11-25
DE10319587B3 (en) 2004-05-27

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