EP0697568A2 - Connection oven and oven frame - Google Patents

Connection oven and oven frame Download PDF

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Publication number
EP0697568A2
EP0697568A2 EP95114355A EP95114355A EP0697568A2 EP 0697568 A2 EP0697568 A2 EP 0697568A2 EP 95114355 A EP95114355 A EP 95114355A EP 95114355 A EP95114355 A EP 95114355A EP 0697568 A2 EP0697568 A2 EP 0697568A2
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EP
European Patent Office
Prior art keywords
oven
gap
seal
frame
receiving
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
EP95114355A
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German (de)
French (fr)
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EP0697568B1 (en
EP0697568A3 (en
Inventor
Gerhard Dipl.-Ing. Münzberg
Walter Schröder
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Electrolux AG
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Electrolux AG
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Application filed by Electrolux AG filed Critical Electrolux AG
Priority to DE59507596T priority Critical patent/DE59507596D1/en
Priority to EP19950114355 priority patent/EP0697568B1/en
Publication of EP0697568A2 publication Critical patent/EP0697568A2/en
Publication of EP0697568A3 publication Critical patent/EP0697568A3/xx
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/02Doors specially adapted for stoves or ranges
    • F24C15/021Doors specially adapted for stoves or ranges sealings for doors or transparent panel

Definitions

  • the present invention relates to a connection of the oven and oven support frame according to the preamble of claim 1.
  • a seal is provided around the oven opening, which seals against the closed oven door.
  • Such a seal is, according to a first technique, detached from the oven / oven support frame connection, or, according to a second fastening technique, a connection of the oven and oven support frame is used to provide the seal mentioned.
  • Fig. 1a shows schematically a plan view of the oven attached to the receiving frame, while Fig. 1b shows a cross section along line I-I of Fig. 1a.
  • the oven space 1 is defined by the oven 3, which, bent outwards, which forms an oven frame 5.
  • the outermost frame area 7, as can be seen in particular in FIG. 1b, is bent back in an S-shape.
  • the receiving space 9 with a correspondingly bent-up receiving frame 11 is bent in at the edges, as can be seen at 13.
  • a sealing profile 15 is clamped in the gap 17 defined between the bent-in oven part 13 and the S-shaped part of the oven frame 5 and engages behind the bent part 13 of the receiving frame 11.
  • the sealing profile 15 lies close to the oven door, shown in broken lines at 19 when it is closed.
  • the provision of a gap between an oven and oven support frame has the essential advantage of thermal insulation between the oven and connecting parts.
  • this gap is used at the same time for anchoring the necessary seal and thereby utilizing the thermal-insulating properties of the sealing materials usually used, such as silicone rubber.
  • the present invention is based on the above-mentioned second technique, implemented in known ovens according to the aforementioned FIGS. 1a and 1b.
  • the present invention aims to overcome these disadvantages, which is achieved in a connection of the type mentioned in its execution according to the characterizing part of claim 1.
  • the oven and oven holder are mechanically connected in the front area in that opposite tabs, each on the two frames, bridge the gap and are detachably connected.
  • connection mentioned is completed with a seal which is anchored in the gap essentially along its entire length.
  • the seal preferably has a profile with a sealing part which projects outwards from the aforementioned frames and with a receiving part in the gap, the mentioned receiving part being less elastic, i.e. to facilitate insertion of the seal into the gap. is harder than at least parts of the sealing section, namely in particular parts that come into contact with the door.
  • the sealing profile subsequent to the receiving part, has a rear grip part which engages behind the edges of the bent frame parts.
  • the rear grip portion is preferably made harder or less elastic than that mentioned receiving section, which facilitates their passage through the gap.
  • the seal is preferably made of silicone rubber, this for normal temperature furnaces up to approx. 300 o C, or of a glass fiber fabric hose for higher temperature ranges of, for example, 500 o C.
  • the last-mentioned seal preferably comprises, on the head side, a wire mesh reinforcement to form the sealing part, a stiffening insert for Formation of the receiving part and preferably a wire insert to form the rear grip part.
  • the oven frame 5 of the oven 3 is essentially bent back at a right angle, as is the mounting frame 11.
  • the oven frame side and the mounting frame side are thus formed with two substantially parallel, opposite edge parts 5a and 11a, which between them the gap 17, essentially perpendicular to the frame surfaces 5, 11.
  • the gap 17 extends around the entire oven opening, with the exception of a few, for example two anchoring sections 23.
  • the parts 5a and 11a are cut in pairs, so that the tabs 21 defined in each case between cuts the respective frame, also opposite one another, can be bent into the gap 17, where, for example by means of screws, the oven frame and the receiving frame are connected to these few narrow anchoring sections 23.
  • FIG. 3 shows, again in cross-sectional representation, the gap area of the arrangement according to the invention according to FIG. 2 with inserted seal 25.
  • the profile of the seal has a sealing section 27, designed as a hollow profile, a receiving part 29, which is received in the gap 17, and a rear grip section 31.
  • the hardness of the material of the receiving section 29 and of the rear grip section 31 is chosen to be greater than that of the material on the sealing section 27.
  • the silicone material has a hardness of 80S on the receiving section 29 and the rear grip section 31, on the other hand a hardness of only 50S on the sealing section 27 and 31 respectively.
  • 4 to 8 show further possible configurations of the sealing profile used according to the invention. 4 and 5, in which again the same reference numerals are used, do not require any further explanations, apart from the interaction of the receiving part 29a and the rear engagement part 31b in the embodiment according to FIG. 5.
  • the receiving part 29a is so narrow that it can be accommodated in the gap 17 with some play.
  • a secure anchoring of the seal 25 is ensured by the conically tapering rear grip portion 31b, on which a barbed profile 32 is molded.
  • increasing pressure increasingly broader parts of the barb-reinforced rear gripping part 31b are brought into engagement with the edges of the gap-defining pipe or muffle frame parts, so that when the seal is released, a tension in the one entered in FIG. 5 with x Direction takes place, namely on the edges mentioned on the one hand and on the frames 5 and 11 of FIG. 2 each as abutment surfaces.
  • connection according to the invention also allows flexible insertion of either silicone rubber seals of the type shown in FIGS. 3 to 5 for thermal Load ranges up to, for example, 300 o C, but also allow for high thermal loads, for example at 500 o C, to insert seals that are highly resistant to high temperatures, such as those made of glass fiber fabric hose, without further changes, FIGS. 6 to 8.
  • FIG. 6 shows a seal of the last-mentioned type which, as can be readily seen, can be inserted into the gap 17 without any problems. It is formed by a glass fiber fabric hose 34.
  • the sealing section 27 c is reinforced with a metal wire mesh 36, which fabric is stitched in the areas 37.
  • the hose 34 then forms the receiving part 39, where a reinforcing insert, such as a steel strip insert 41, is inserted.
  • the rear grip part of the seal, 43 is formed by inserting a wire 46.
  • barbs 48 are formed on the receiving part 39, acting as rear engaging parts, or, according to FIG. 8, the receiving part is formed by the one leg of individual hooks 50, which also form the respective rear engaging parts.
  • FIG. 9a shows a seal 60 made of silicone rubber which is particularly preferred today. It in turn comprises a hook-shaped rear gripping section 62, a receiving section 64 and a sealing section 66. Preferably, the receiving section 64 and rear gripping section 62 are again harder than the sealing section 66. Two side sealing tabs 68 are formed on the sealing section, which, as can be seen in FIG. 9b, with the sealing profile in place, fit snugly against the frame surfaces 5 or 11.
  • the inward bend 70 on the sealing section 66 continues a predetermined kink when creating the seal to the oven door 19 as shown in FIG. 1b.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Cookers (AREA)

Abstract

The oven is used for cooking. The gap (17) is formed between the parallel plane edge parts (5a,11a) on the interior tube (3,5) and on the tube receiver frame (9,11). The edge parts are bent in a rectangular manner w.r.t. the frame. The gap is bridged at two circumferential points (23) by oppositely placed flanges (21) which are releasably joined to each other. A seal (25) is anchored along its entire length inside the gap.

Description

Die vorliegende Erfindung betrifft eine Verbindung von Backrohr und Backrohr-Aufnahmerahmen nach dem Oberbegriff von Anspruch 1.The present invention relates to a connection of the oven and oven support frame according to the preamble of claim 1.

Es ist bekannt, dass eine um die Backrohröffnung umlaufende Dichtung vorzusehen ist, die sich dichtend an die geschlossene Backofentür legt. Eine solche Dichtung wird, gemäss einer ersten Technik, losgelöst von der Backrohr/Backrohr-Aufnahmerahmen-Verbindung befestigt, oder es wird, gemäss einer zweiten Befestigungstechnik, eine Verbindung von Backrohr und Backrohr-Aufnahmerahmen für das Vorsehen der erwähnten Dichtung ausgenützt.It is known that a seal is provided around the oven opening, which seals against the closed oven door. Such a seal is, according to a first technique, detached from the oven / oven support frame connection, or, according to a second fastening technique, a connection of the oven and oven support frame is used to provide the seal mentioned.

So ist es aus dem DE-GM-295 02 175.6, gemäss der ersterwähnten Technik, bekannt, die Dichtung in einer umlaufenden Sicke am mit dem Rahmen einteiligen Backrohr anzuordnen, dabei die Dichtung, vornehmlich in den Eckbereichen, am Rahmen zu verankern. Aufgrund der thermischen und mechanischen Belastung einer solchen Dichtung ist ihre Verankerung lediglich an Eckpartien problematisch, weil die dazwischenliegenden Dichtungsschenkel im wesentlichen lose hängen.It is known from DE-GM-295 02 175.6, according to the first-mentioned technique, to arrange the seal in a circumferential bead on the oven part integral with the frame, thereby anchoring the seal to the frame, primarily in the corner areas. Due to the thermal and mechanical stress of such a seal, its anchoring is problematic only at corner parts, because the sealing legs in between hang essentially loose.

Von der Konstruktion des Backofentyps KB 83 derselben Anmelderin wie das vorliegende Gesuch ist eine Verbindung gemäss zweiterwähnter Technik bekannt, welche anhand von Fig. 1a und 1b erläutert werden soll.From the construction of the oven type KB 83 by the same applicant as the present application, a connection according to the second-mentioned technique is known, which is to be explained with reference to FIGS. 1a and 1b.

Fig. 1a zeigt dabei schematisch eine Aufsicht auf das am Aufnahmerahmen befestigte Backrohr, während Fig. 1b einen Querschnitt gemäss Linie I-I von Fig. 1a zeigt.Fig. 1a shows schematically a plan view of the oven attached to the receiving frame, while Fig. 1b shows a cross section along line I-I of Fig. 1a.

Der Backrohrraum 1 ist durch das Backrohr 3 definiert, welches, nach aussen umgebogen, den einen Backrohrrahmen 5 bildet. Der äusserste Rahmenbereich 7 ist, wie insbesondere in Fig. 1b ersichtlich, S-förmig zurückgebogen. Der Aufnahmeraum 9 mit einem entsprechend aufgebogenen Aufnahmerahmen 11 ist randständig, wie bei 13 ersichtlich, eingebogen. In dem zwischen der eingebogenen Backrohr-Aufnahmerahmenpartie 13 und der S-förmigen Partie des Backrohrrahmens 5 definierten Spalt 17 ist ein Dichtungsprofil 15 eingeklemmt und hintergreift die eingebogene Partie 13 des Aufnahmerahmens 11. Das Dichtungsprofil 15 legt sich dicht an die Backrohrtür, gestrichelt bei 19 eingetragen, wenn diese geschlossen wird.The oven space 1 is defined by the oven 3, which, bent outwards, which forms an oven frame 5. The outermost frame area 7, as can be seen in particular in FIG. 1b, is bent back in an S-shape. The receiving space 9 with a correspondingly bent-up receiving frame 11 is bent in at the edges, as can be seen at 13. A sealing profile 15 is clamped in the gap 17 defined between the bent-in oven part 13 and the S-shaped part of the oven frame 5 and engages behind the bent part 13 of the receiving frame 11. The sealing profile 15 lies close to the oven door, shown in broken lines at 19 when it is closed.

Grundsätzlich hat das Vorsehen eines Spaltes zwischen einem Backrohr und Backrohr-Aufnahmerahmen den wesentlichen Vorteil der thermischen Isolation zwischen Backrohr und Anschlussteile. Zudem wird dieser Spalt gleichzeitig zur Verankerung der notwendigen Dichtung ausgenützt und dabei die thermisch-isolierenden Eigenschaften der üblicherweise eingesetzten Dichtungsmaterialien, wie von Silicongummi, ausgenützt.Basically, the provision of a gap between an oven and oven support frame has the essential advantage of thermal insulation between the oven and connecting parts. In addition, this gap is used at the same time for anchoring the necessary seal and thereby utilizing the thermal-insulating properties of the sealing materials usually used, such as silicone rubber.

Die vorliegende Erfindung geht aus von der obgenannten zweiten Technik, realisiert bei bekannten Backofen gemäss den erwähnten Fig. 1a und 1b.The present invention is based on the above-mentioned second technique, implemented in known ovens according to the aforementioned FIGS. 1a and 1b.

Daran ist nachteilig:

  • a) die relativ komplizierte Formung, insbesondere der Backrohr- und Aufnahmerahmen-Randbereiche bei 7,
  • b) dass die Dichtung 15 nicht appliziert werden kann, wenn Backrohr und Backrohraufnahme bereits zusammenmontiert sind, und dass demzufolge ein Ersetzen schadhafter Dichtungen 15 einen relativ grossen Zerlegungsaufwand erfordert.
This is disadvantageous:
  • a) the relatively complicated shaping, in particular of the oven and receiving frame edge regions at 7,
  • b) that the seal 15 cannot be applied when the oven and oven holder have already been assembled, and that consequently replacing damaged seals 15 requires a relatively large amount of disassembly.

Die vorliegende Erfindung bezweckt, diese Nachteile zu beheben, was an einer Verbindung der genannten Art bei ihrer Ausführung nach dem kennzeichnenden Teil von Anspruch 1 erreicht wird.The present invention aims to overcome these disadvantages, which is achieved in a connection of the type mentioned in its execution according to the characterizing part of claim 1.

Dadurch, dass nämlich der Spalt zwischen im wesentlichen rechtwinklig eingebogenen Randpartien von Backrohrrahmen und Backrohr-Aufnahmerahmen gebildet ist, die sich im wesentlichen plan gegenüberliegen, werden einerseits die thermische Isolation beibehalten, anderseits die Dichtungsmontage und die Formung der beiden Rahmen wesentlich vereinfacht.The fact that the gap between the essentially rectangularly bent-in edge parts of the oven frame and the oven support frame, which lie essentially flat opposite one another, on the one hand maintains the thermal insulation, and on the other hand considerably simplifies the sealing assembly and the shaping of the two frames.

In einer bevorzugten Ausführungsform werden Backrohr und Backrohraufnahme im Frontbereich dadurch mechanisch verbunden, dass sich gegenüberliegende Laschen, je an den beiden Rahmen, den Spalt überbrücken und lösbar verbunden sind.In a preferred embodiment, the oven and oven holder are mechanically connected in the front area in that opposite tabs, each on the two frames, bridge the gap and are detachably connected.

Im weiteren ist die erwähnte Verbindung mit einer Dichtung komplettiert, welche im wesentlichen entlang ihrer ganzen Länge im Spalt verankert ist.Furthermore, the connection mentioned is completed with a seal which is anchored in the gap essentially along its entire length.

Die Dichtung weist dabei bevorzugterweise ein Profil auf mit einer Dichtpartie, die von den erwähnten Rahmen gegen aussen vorragt, und mit einer Aufnahmepartie im Spalt, wobei, zur Erleichterung des Einführens der Dichtung in den Spalt, die erwähnte Aufnahmepartie weniger elastisch, d.h. härter ausgebildet ist als mindestens Teile der Dichtpartie, nämlich insbesondere Teile, die mit der Tür in Kontakt treten.The seal preferably has a profile with a sealing part which projects outwards from the aforementioned frames and with a receiving part in the gap, the mentioned receiving part being less elastic, i.e. to facilitate insertion of the seal into the gap. is harder than at least parts of the sealing section, namely in particular parts that come into contact with the door.

In einer weiteren bevorzugten Ausführungsform weist das Dichtungsprofil, anschliessend an die Aufnahmepartie, eine Hintergreifpartie auf, welche die Kanten der eingebogenen Rahmenpartien hintergreift. Die Hintergreifpartie ist dabei vorzugsweise härter bzw. weniger elastisch ausgebildet als die erwähnte Aufnahmepartie, womit ihr Durchführen durch den Spalt erleichtert wird. Die Dichtung besteht vorzugsweise aus Silicongummi, dies für Normaltemperaturofen bis ca. 300oC, oder aus einem Glasfaser-Gewebeschlauch für höhere Temperaturbereiche von beispielsweise 500oC. Die letzterwähnte Dichtung umfasst bevorzugterweise, kopfseitig, zur Bildung der Dichtungspartie eine Drahtgewebeverstärkung, eine Versteifungseinlage zur Bildung der Aufnahmepartie und bevorzugterweise eine Drahteinlage zur Bildung der Hintergreifpartie.In a further preferred embodiment, the sealing profile, subsequent to the receiving part, has a rear grip part which engages behind the edges of the bent frame parts. The rear grip portion is preferably made harder or less elastic than that mentioned receiving section, which facilitates their passage through the gap. The seal is preferably made of silicone rubber, this for normal temperature furnaces up to approx. 300 o C, or of a glass fiber fabric hose for higher temperature ranges of, for example, 500 o C. The last-mentioned seal preferably comprises, on the head side, a wire mesh reinforcement to form the sealing part, a stiffening insert for Formation of the receiving part and preferably a wire insert to form the rear grip part.

Die Erfindung wird anschliessend beispielsweise anhand von Figuren erläutert.The invention is subsequently explained, for example, using figures.

Es zeigen:

Fig. 1a
schematisch eine Aufsicht auf eine Backrohrrahmen/Aufnahmerahmen-Verbindung mit umlaufender Dichtung;
Fig. 1b
eine bekannte Backrohrrahmen/Aufnahmerahmen-Verbindung mit einem Isolationsspalt, welcher zur Verankerung der Dichtung ausgenützt ist, gemäss einer Schnittdarstellung nach I-I von Fig. 1a;
Fig. 2
eine erfindungsgemässe Backrohrrahmen-/Aufnahmerahmen-Verbindung in schematischer Darstellung, analog zu derjenigen von Fig. 1b, ohne eingelegte Dichtung;
Fig. 3
einen Ausschnitt der Anordnung nach Fig. 2 mit Dichtprofil;
Fig. 4,5,6,7,8
bevorzugte, an der erfindungsgemässen Verbindung eingesetzte Dichtungsprofile;
Fig. 9a
wiederum perspektivisch, eine besonders bevorzugte, erfindungsgemäss eingesetzte Dichtung und
Fig. 9b
die Dichtung gemäss Fig. 9a, in die erfindungsgemässe Verbindung eingesetzt.
Show it:
Fig. 1a
schematically a top view of an oven frame / mounting frame connection with circumferential seal;
Fig. 1b
a known oven frame / mounting frame connection with an insulation gap, which is used for anchoring the seal, according to a sectional view according to II of Fig. 1a;
Fig. 2
an inventive oven tube / mounting frame connection in a schematic representation, analogous to that of Fig. 1b, without an inserted seal;
Fig. 3
a section of the arrangement of Figure 2 with sealing profile.
Fig. 4,5,6,7,8
preferred sealing profiles used on the connection according to the invention;
Fig. 9a
again in perspective, a particularly preferred seal used according to the invention and
Fig. 9b
9a, inserted into the connection according to the invention.

In Fig. 2 sind für die gleichen Teile dieselben Bezugszeichen wie in Fig. 1 verwendet.In Fig. 2, the same reference numerals are used as in Fig. 1 for the same parts.

Der Backrohrrahmen 5 des Backrohres 3 ist im wesentlichen rechtwinklig rückgebogen, ebenso der Aufnahmerahmen 11. Backrohrrahmenseitig und aufnahmerahmenseitig werden damit zwei sich im wesentlichen parallel erstreckende, gegenüberliegende Randpartien 5a und 11a gebildet, welche zwischen sich den Spalt 17, im wesentlichen senkrecht verlaufend zu den Rahmenflächen 5, 11, definieren. Der Spalt 17 erstreckt sich mit Blick auf Fig. 1a um die gesamte Backrohröffnung herum, bis auf einige wenige, beispielsweise zwei Verankerungsabschnitte 23. Dort sind die Partien 5a und 11a, sich gegenüberliegend, paarweise eingeschnitten, so dass die zwischen Einschnitten jeweils definierten Laschen 21 der jeweiligen Rahmen, auch sich gegenüberliegend, in den Spalt 17 eingebogen werden können, wo, beispielsweise über Schrauben, Backrohrrahmen und Aufnahmerahmen an diesen wenigen schmalen Verankerungsabschnitten 23 verbunden werden.The oven frame 5 of the oven 3 is essentially bent back at a right angle, as is the mounting frame 11. The oven frame side and the mounting frame side are thus formed with two substantially parallel, opposite edge parts 5a and 11a, which between them the gap 17, essentially perpendicular to the frame surfaces 5, 11. With a view of FIG. 1a, the gap 17 extends around the entire oven opening, with the exception of a few, for example two anchoring sections 23. There, the parts 5a and 11a, in opposite directions, are cut in pairs, so that the tabs 21 defined in each case between cuts the respective frame, also opposite one another, can be bent into the gap 17, where, for example by means of screws, the oven frame and the receiving frame are connected to these few narrow anchoring sections 23.

Fig. 3 zeigt, wiederum in Querschnittsdarstellung, den Spaltbereich der erfindungsgemässen Anordnung nach Fig. 2 mit eingelegter Dichtung 25. Das Profil der Dichtung weist einen Dichtungsabschnitt 27 auf, ausgebildet als Hohlprofil, eine Aufnahmepartie 29, welche im Spalt 17 aufgenommen ist, sowie eine Hintergreifpartie 31. Um die Dichtung 25 mühelos in den erstellten Spalt 17 einführen zu können, wird dabei die Härte des Materials der Aufnahmepartie 29 und der Hintergreifpartie 31 grösser gewählt als diejenige des Materials am Dichtungsabschnitt 27. So weist beispielsweise das Siliconmaterial eine Härte von 80S an der Aufnahmepartie 29 und der Hintergreifpartie 31 auf, hingegen eine Härte von lediglich 50S an der Dichtungspartie 27 bzw. 31.FIG. 3 shows, again in cross-sectional representation, the gap area of the arrangement according to the invention according to FIG. 2 with inserted seal 25. The profile of the seal has a sealing section 27, designed as a hollow profile, a receiving part 29, which is received in the gap 17, and a rear grip section 31. In order to be able to insert the seal 25 effortlessly into the created gap 17, the hardness of the material of the receiving section 29 and of the rear grip section 31 is chosen to be greater than that of the material on the sealing section 27. For example, the silicone material has a hardness of 80S on the receiving section 29 and the rear grip section 31, on the other hand a hardness of only 50S on the sealing section 27 and 31 respectively.

In den Fig. 4 bis 8 sind weitere mögliche Ausformungen des erfindungsgemäss eingesetzten Dichtungsprofils dargestellt. Die Darstellungen gemäss diesen Fig. 4 und 5, worin wiederum dieselben Bezugszeichen verwendet sind, benötigen keine weiteren Erläuterungen, bis auf die Zusammenwirkung von Aufnahmepartie 29a und der Hintergreifpartie 31b bei der Ausführung gemäss Fig. 5.4 to 8 show further possible configurations of the sealing profile used according to the invention. 4 and 5, in which again the same reference numerals are used, do not require any further explanations, apart from the interaction of the receiving part 29a and the rear engagement part 31b in the embodiment according to FIG. 5.

Hier ist die Aufnahmepartie 29a derart schmal ausgebildet, dass sie mit einigem Spiel im Spalt 17 aufgenommen werden kann. Eine sichere Verankerung der Dichtung 25 wird durch die sich konisch verjüngende Hintergreifpartie 31b sichergestellt, woran eine widerhakenförmige Profilierung 32 angeformt ist. Durch Eindrücken dieses Profils in den Spalt 17 werden mit zunehmendem Druck zunehmend breitere Partien der widerhakenbewehrten Hintergreifpartie 31b mit den Kanten der spaltdefinierenden Rohr- bzw. Muffelrahmenpartien in Eingriff gebracht, so dass bei Freigeben der Dichtung eine Verspannung in der in Fig. 5 mit x eingetragenen Richtung erfolgt, nämlich an den erwähnten Kanten einerseits und an den Rahmen 5 bzw. 11 von Fig. 2 je als Widerlagerflächen.Here, the receiving part 29a is so narrow that it can be accommodated in the gap 17 with some play. A secure anchoring of the seal 25 is ensured by the conically tapering rear grip portion 31b, on which a barbed profile 32 is molded. By pushing this profile into the gap 17, with increasing pressure, increasingly broader parts of the barb-reinforced rear gripping part 31b are brought into engagement with the edges of the gap-defining pipe or muffle frame parts, so that when the seal is released, a tension in the one entered in FIG. 5 with x Direction takes place, namely on the edges mentioned on the one hand and on the frames 5 and 11 of FIG. 2 each as abutment surfaces.

Die erfindungsgemässe Ausbildung der Verbindung erlaubt es im weiteren, flexibel entweder Dichtungen aus Silicongummi der in den Fig. 3 bis 5 dargestellten Art einzuführen für thermische Belastungsbereiche bis beispielsweise 300oC, erlaubt es aber auch, für höhere thermische Belastungen, beispielsweise bei 500oC, thermisch hochbelastbare Dichtungen, wie beispielsweise aus Glasfaser-Gewebeschlauch, ohne weitere Veränderungen, einzuführen, Fig. 6 bis 8.The design of the connection according to the invention also allows flexible insertion of either silicone rubber seals of the type shown in FIGS. 3 to 5 for thermal Load ranges up to, for example, 300 o C, but also allow for high thermal loads, for example at 500 o C, to insert seals that are highly resistant to high temperatures, such as those made of glass fiber fabric hose, without further changes, FIGS. 6 to 8.

In Fig. 6 ist eine Dichtung letzterwähnter Art dargestellt, welche sich, wie ohne weiteres ersichtlich, problemlos in den Spalt 17 einführen lässt. Sie ist gebildet durch einen Glasfaser-Gewebeschlauch 34. Die Dichtungspartie 27c ist mit einem Metalldrahtgewebe 36 verstärkt, welches Gewebe im Bereiche 37 abgesteppt ist. Anschliessend bildet der Schlauch 34 die Aufnahmepartie 39, wo eine Verstärkungseinlage, wie eine Stahlbandeinlage 41, eingelegt ist. Die Hintergreifpartie der Dichtung, 43, ist gebildet durch Einlage eines Drahtes 46.6 shows a seal of the last-mentioned type which, as can be readily seen, can be inserted into the gap 17 without any problems. It is formed by a glass fiber fabric hose 34. The sealing section 27 c is reinforced with a metal wire mesh 36, which fabric is stitched in the areas 37. The hose 34 then forms the receiving part 39, where a reinforcing insert, such as a steel strip insert 41, is inserted. The rear grip part of the seal, 43, is formed by inserting a wire 46.

Gemäss Fig. 7 sind an der Aufnahmepartie 39, als Hintergreifpartien wirkend, Widerhaken 48 angeformt, oder es ist, gemäss Fig. 8, die Aufnahmepartie durch die einen Schenkel von einzelnen Haken 50 gebildet, welche auch die jeweiligen Hintergreifpartien bilden.According to FIG. 7, barbs 48 are formed on the receiving part 39, acting as rear engaging parts, or, according to FIG. 8, the receiving part is formed by the one leg of individual hooks 50, which also form the respective rear engaging parts.

In Fig. 9a ist, in Anlehnung an die Ausbildung der Dichtung gemäss Fig. 4, eine heute besonders bevorzugte Dichtung 60 aus Silicongummi dargestellt. Sie umfasst wiederum eine hakenförmige Hintergreifpartie 62, eine Aufnahmepartie 64 sowie eine Dichtungspartie 66. Bevorzugterweise sind wiederum Aufnahmepartie 64 und Hintergreifpartie 62 härter als die Dichtungspartie 66. An der Dichtungspartie sind zwei seitliche Dichtungslaschen 68 angeformt, welche sich, wie aus Fig. 9b ersichtlich, bei eingelegtem Dichtungsprofil satt an die Rahmenflächen 5 bzw. 11 anlegen.9a, based on the design of the seal according to FIG. 4, shows a seal 60 made of silicone rubber which is particularly preferred today. It in turn comprises a hook-shaped rear gripping section 62, a receiving section 64 and a sealing section 66. Preferably, the receiving section 64 and rear gripping section 62 are again harder than the sealing section 66. Two side sealing tabs 68 are formed on the sealing section, which, as can be seen in FIG. 9b, with the sealing profile in place, fit snugly against the frame surfaces 5 or 11.

Der Einwärtsknick 70 an der Dichtungspartie 66 ergibt weiter eine vorgegebene Knickstelle bei Erstellen der Dichtung zur Backofentür 19 gemäss Fig. 1b.The inward bend 70 on the sealing section 66 continues a predetermined kink when creating the seal to the oven door 19 as shown in FIG. 1b.

Aufgrund der dargestellten erfindungsgemässen Verbindung ist es möglich, unter Beibehalt der thermischen Isolation zwischen Backrohr und Muffel, die notwendigen Türendichtungen nach dem Backrohr/Muffelzusammenbau und damit auch für den Dichtungsersatz ohne weitere Montagehilfen manuell einzuführen bzw. herauszureissen. Dabei können, entsprechend unterschiedlichen thermischen Anforderungen, in weiten Grenzen variable Dichtungen vorgesehen werden.Because of the connection according to the invention shown, it is possible to manually insert or tear out the necessary door seals after the oven / muffle assembly, and thus also for the replacement of seals, while maintaining the thermal insulation between the oven and the muffle, without additional assembly aids. Depending on different thermal requirements, variable seals can be provided within wide limits.

Claims (7)

Frontseitige Verbindung eines Backrohres (3) mit einem Backrohr-Aufnahmerahmen (5), die entlang mindestens weitgehend der ganzen Backrohröffnung, durch einen Luftspalt (17) für die Aufnahme einer Dichtung (15) für die Backrohrtür (19) getrennt sind, dadurch gekennzeichnet, dass der Spalt (17) zwischen im wesentlichen parallel eingebogenen, planen Randpartien (5a, 11a) an Backrohr(3, 5)- und am Aufnahmerahmen (9, 11) gebildet ist.Front connection of an oven (3) with an oven support frame (5), which are separated along at least largely the entire oven opening by an air gap (17) for receiving a seal (15) for the oven door (19), characterized in that that the gap (17) is formed between essentially parallel, planar edge parts (5a, 11a) on the oven (3, 5) - and on the receiving frame (9, 11). Verbindung nach Anspruch 1, dadurch gekennzeichnet, dass die Randpartien (5a, 11a) bezüglich des Rahmens (11), mindestens genähert, rechtwinklig eingebogen sind.Connection according to claim 1, characterized in that the edge parts (5a, 11a) with respect to the frame (11), at least approximated, are bent at right angles. Verbindung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass, an mindestens zwei Umfangsstellen (23) bezüglich der Rohröffnung, der Spalt (17) durch sich gegenüberliegende Laschen (21) je an Backrohr und am Aufnahmerahmen (11) überbrückt ist, welche miteinander lösbar verbunden sind.Connection according to claim 1 or 2, characterized in that, at at least two circumferential points (23) with respect to the tube opening, the gap (17) is bridged by opposing tabs (21) each on the oven and on the receiving frame (11), which can be detached from one another are connected. Verbindung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Dichtung (25) im wesentlichen entlang ihrer ganzen Länge im Spalt (17) verankert ist.Connection according to one of Claims 1 to 3, characterized in that a seal (25) is anchored in the gap (17) essentially along its entire length. Verbindung nach Anspruch 4, dadurch gekennzeichnet, dass die Dichtung ein Profil aufweist mit - einer Dichtpartie (27, 27c), die aus dem Spalt vorragt, - einer Aufnahmepartie (29, 29a, 39) im Spalt (17), wobei die Aufnahmepartie an der Dichtung weniger elastisch ist als mindestens Teile der Dichtpartie.Connection according to claim 4, characterized in that the seal has a profile with - a sealing section (27, 27 c ) protruding from the gap, - a receiving section (29, 29a, 39) in the gap (17), wherein the receiving part on the seal is less elastic than at least parts of the sealing part. Verbindung nach Anspruch 5, dadurch gekennzeichnet, dass das Profil anschliessend an die Aufnahmepartie (29, 29a, 39) eine Hintergreifpartie (31, 31a, 31b, 43) aufweist, die die Kanten der eingebogenen Randpartien (5a, 11a) hintergreift.Connection according to claim 5, characterized in that the profile adjoining the receiving part (29, 29a, 39) has a rear engagement part (31, 31a, 31b, 43) which engages behind the edges of the bent edge parts (5a, 11a). Verbindung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Dichtung aus Silicongummi besteht oder aus einem Glasfaser-Gewebeschlauch (34), vorzugsweise mit drahtgewebe-aussen-verstärkter Dichtpartie (27c), weiter vorzugsweise mit einer Versteifungseinlage (41) an der Aufnahmepartie (39) und weiter vorzugsweise mit eine Hintergreifpartie (43) bildenden Drahteinlage (46).Connection according to claim 5 or 6, characterized in that the seal consists of silicone rubber or of a glass fiber fabric hose (34), preferably with a wire mesh reinforced reinforcement part (27 c ), further preferably with a stiffening insert (41) on the receiving part (39) and further preferably with a wire insert (46) forming a rear engagement part (43).
EP19950114355 1995-09-13 1995-09-13 Connection oven and oven frame Revoked EP0697568B1 (en)

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DE59507596T DE59507596D1 (en) 1995-09-13 1995-09-13 Connection of the oven and oven holder frame
EP19950114355 EP0697568B1 (en) 1995-09-13 1995-09-13 Connection oven and oven frame

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EP19950114355 EP0697568B1 (en) 1995-09-13 1995-09-13 Connection oven and oven frame

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EP0697568A3 EP0697568A3 (en) 1996-03-20
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726423A2 (en) * 1995-02-10 1996-08-14 REHAU AG + Co Gasket for baking oven
DE19705697A1 (en) * 1996-11-29 1998-06-04 Juno Kuechentech Electrolux Glass door for domestic oven
FR2759770A1 (en) * 1997-02-14 1998-08-21 Electrolux Juno Kuchentechnik HOUSEHOLD OVEN WITH SEALING FOR THE FRONT OPENING OF THE SUPPLY
KR19990002531A (en) * 1997-06-20 1999-01-15 구자홍 Sealing packing of gas oven range
DE10059167A1 (en) * 2000-11-29 2002-06-06 Bsh Bosch Siemens Hausgeraete oven
FR2853955A1 (en) 2003-03-31 2004-10-22 Bsh Bosch Siemens Hausgeraete DEVICE FOR SUPPORTING A COOKING OVEN MOLD
DE102004039432A1 (en) * 2004-08-13 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Door seal for sealing gap between door and flange of cooking appliance has sealing cord fastened to flange on cooking appliance by fastening strip which comprises flat band with two parallel flat outer faces
EP1927799A1 (en) * 2006-11-30 2008-06-04 BSH Bosch und Siemens Hausgeräte GmbH Household appliance sealing unit
FR2931919A1 (en) * 2008-06-02 2009-12-04 Fed Mogul Systems Prot Group SEAL JOINT, OVEN COMPARTMENT EQUIPPED WITH SUCH A SEAL AND OVEN COMPRISING SUCH A SEAL
EP2177836A1 (en) * 2008-10-16 2010-04-21 Electrolux Home Products Corporation N.V. Cooking oven comprising two-part gasket assembly
ITTO20121109A1 (en) * 2012-12-19 2014-06-20 Indesit Co Spa OVEN AND METHOD FOR FIXING A RELATIVE GASKET
WO2014097180A3 (en) * 2012-12-19 2014-12-31 Indesit Company S.P.A. Oven and method for attaching a seal thereof
DE102015102981A1 (en) * 2015-03-02 2016-09-08 Rational Aktiengesellschaft Front plate for a cooking appliance, assembly with a front plate and a cooking appliance inner box and method for producing the assembly
EP2329199B2 (en) 2008-09-12 2019-12-25 Arçelik Anonim Sirketi An oven with cooking chamber

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10156778A1 (en) * 2001-11-19 2003-06-05 Bsh Bosch Siemens Hausgeraete Door sealing strip and cooking appliance
DE102013225400A1 (en) 2013-12-10 2015-06-25 BSH Hausgeräte GmbH Cooking appliance

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DE29502175U1 (en) 1995-02-10 1995-03-30 Rehau Ag + Co, 95111 Rehau Oven seal

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GB2201201B (en) * 1987-02-18 1990-10-17 Belling & Co Ltd Gasketed structure
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DE29502175U1 (en) 1995-02-10 1995-03-30 Rehau Ag + Co, 95111 Rehau Oven seal

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726423A2 (en) * 1995-02-10 1996-08-14 REHAU AG + Co Gasket for baking oven
EP0726423A3 (en) * 1995-02-10 1998-01-07 REHAU AG + Co Gasket for baking oven
DE19705697A1 (en) * 1996-11-29 1998-06-04 Juno Kuechentech Electrolux Glass door for domestic oven
FR2756617A1 (en) * 1996-11-29 1998-06-05 Electrolux Juno Kuchentechnik HOUSEHOLD FURNACE INCLUDING A SEAL TRIM BETWEEN THE MOUPLLE AND THE INSIDE GLASS OF THE DOOR
DE19705697C2 (en) * 1996-11-29 1999-04-08 Juno Kuechentech Electrolux Household stove with a muffle sealed on glass
FR2759770A1 (en) * 1997-02-14 1998-08-21 Electrolux Juno Kuchentechnik HOUSEHOLD OVEN WITH SEALING FOR THE FRONT OPENING OF THE SUPPLY
KR19990002531A (en) * 1997-06-20 1999-01-15 구자홍 Sealing packing of gas oven range
DE10059167A1 (en) * 2000-11-29 2002-06-06 Bsh Bosch Siemens Hausgeraete oven
FR2853955A1 (en) 2003-03-31 2004-10-22 Bsh Bosch Siemens Hausgeraete DEVICE FOR SUPPORTING A COOKING OVEN MOLD
DE10314589B4 (en) * 2003-03-31 2021-06-24 BSH Hausgeräte GmbH Cooking appliance
DE102004039432A1 (en) * 2004-08-13 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Door seal for sealing gap between door and flange of cooking appliance has sealing cord fastened to flange on cooking appliance by fastening strip which comprises flat band with two parallel flat outer faces
EP1927799A1 (en) * 2006-11-30 2008-06-04 BSH Bosch und Siemens Hausgeräte GmbH Household appliance sealing unit
FR2931919A1 (en) * 2008-06-02 2009-12-04 Fed Mogul Systems Prot Group SEAL JOINT, OVEN COMPARTMENT EQUIPPED WITH SUCH A SEAL AND OVEN COMPRISING SUCH A SEAL
WO2009156613A1 (en) * 2008-06-02 2009-12-30 Federal Mogul Systems Protection Seal, furnace part provided with such a seal, and furnace including such a seal
EP2329199B2 (en) 2008-09-12 2019-12-25 Arçelik Anonim Sirketi An oven with cooking chamber
EP2177836A1 (en) * 2008-10-16 2010-04-21 Electrolux Home Products Corporation N.V. Cooking oven comprising two-part gasket assembly
ITTO20121109A1 (en) * 2012-12-19 2014-06-20 Indesit Co Spa OVEN AND METHOD FOR FIXING A RELATIVE GASKET
WO2014097180A3 (en) * 2012-12-19 2014-12-31 Indesit Company S.P.A. Oven and method for attaching a seal thereof
DE102015102981A1 (en) * 2015-03-02 2016-09-08 Rational Aktiengesellschaft Front plate for a cooking appliance, assembly with a front plate and a cooking appliance inner box and method for producing the assembly

Also Published As

Publication number Publication date
EP0697568B1 (en) 2000-01-12
DE59507596D1 (en) 2000-02-17
EP0697568A3 (en) 1996-03-20

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