EP2128529B1 - Moufle de four - Google Patents

Moufle de four Download PDF

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Publication number
EP2128529B1
EP2128529B1 EP09005032.9A EP09005032A EP2128529B1 EP 2128529 B1 EP2128529 B1 EP 2128529B1 EP 09005032 A EP09005032 A EP 09005032A EP 2128529 B1 EP2128529 B1 EP 2128529B1
Authority
EP
European Patent Office
Prior art keywords
oven muffle
wall
molded
wall elements
oven
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.)
Not-in-force
Application number
EP09005032.9A
Other languages
German (de)
English (en)
Other versions
EP2128529A3 (fr
EP2128529A2 (fr
Inventor
Thomas Dr. Zenker
Wolfgang Dr. Schmidbauer
Helga Götz
Martin Taplan
Sascha Backes
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.)
Schott AG
Original Assignee
Schott AG
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 Schott AG filed Critical Schott AG
Publication of EP2128529A2 publication Critical patent/EP2128529A2/fr
Publication of EP2128529A3 publication Critical patent/EP2128529A3/fr
Application granted granted Critical
Publication of EP2128529B1 publication Critical patent/EP2128529B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24C15/00—Details
    • F24C15/08—Foundations or supports plates; Legs or pillars; Casings; Wheels

Definitions

  • the invention relates to a furnace muffle, in particular baking oven muffle with at least two adjoining wall elements, which delimit at least partially an interior serving in particular as a cooking space, wherein the wall elements made of glass or glass ceramic, and wherein the adjacent wall elements are at an angle to each other and wherein the wall elements (11 , 12, 50) are integrally connected to one another and form a shaped part (10),
  • the oven consists essentially of an enamelled oven muffle, which is heated at the top and bottom with tubular heaters. On the front, the oven muffle is closed with a framed glass door.
  • the upper heating is arranged in the interior of the baking oven muffle and is supported in high-quality ovens by a second radiator, which allows a grill function of the oven.
  • the lower radiator is applied to the outside of the muffle floor.
  • a circulating air blower used which may also have a separate heating ring, not only to circulate air, but also to produce hot air itself.
  • oven walls made of glass or glass ceramic.
  • the use of glass ceramic in ovens is already in the CA 2,183,498 described.
  • the oven is proposed for better cleanability of glass ceramic.
  • an oven muffle glass ceramic is described, which is detachably joined together and is heated by mounted externally radiant heater.
  • the discs are inserted into a supporting or holding frame, by the resulting edges and joints, especially in the lower corners of the oven muffle this is very bad to clean.
  • the design effort is high.
  • the bill is in the DE 35 27 958 C2 proposed an enameled sheet steel muffle, wherein in the side walls window openings are provided, are used in the glass or glass ceramic panes. In this case, there is the same problem with the joints and joints which are difficult to clean and, in addition, a large part of the muffle space is still formed from enamelled sheet steel.
  • the wall elements of the oven muffle are integrally connected to each other and form a molded part. According to the invention the wall elements are angled against each other. This results in the transition region of the two wall elements facing the interior a closed contour that is easy to clean.
  • the one-piece connection of the wall elements of glass or glass ceramic creates a mechanical bond that is statically sufficiently stable. It can be dispensed with in favor of a simple construction so that on a support frame.
  • the oven muffle according to the invention is such that in the region of the joint of two juxtaposed molded parts or in the region of the joint of a molded part with a plate-like wall element, a support member is held. As a result, the functionality can be increased with little effort.
  • the support member can then serve either inside or outside to connect attachments. It is conceivable that in the interior of a support frame is attached (for example, for baking trays, roasters, etc.). On the outside, the support member may for example have brackets for suspending the oven muffle in the stove.
  • the molded part has three wall elements, and that the wall elements are arranged such that the molded part is substantially V- or U-shaped. If the design of the oven muffel provides that from the wall element formed as a bottom or top wall on opposite wall elements, the two wall elements formed as side walls are bent, then all edge regions of the oven muffle, in which dirt accumulates increasingly, are easily cleaned.
  • a conceivable alternative of the invention provides that the boundary edges of the mutually bent wall elements which face the oven muffle front and / or rear side merge into one another to form a planar sealing surface. At the Ofenmuffel front then manages the stop and the sealing of the oven door in a simple way. On the back, a further wall element can be applied sealed on the molding, which limits the back of the interior.
  • At least one of the wall elements on its side facing away from the other, molded-on wall element forms a flat sealing surface. Then can be attached to the side of the wall elements in addition wall elements or other molded parts sealed in a simple manner.
  • the functionality of the molded part can be additionally improved if it is provided that at least one of the wall elements at least one integrally molded functional element (projection, receptacle, recess), which is formed in the inner surface facing the interior of the wall element or in the interior of the inner surface protrudes.
  • at least one of the wall elements at least one integrally molded functional element (projection, receptacle, recess), which is formed in the inner surface facing the interior of the wall element or in the interior of the inner surface protrudes.
  • a furnace muffle be, for example, such that the functional element in the region of the front and / or back of the furnace muffle to the furnace muffle bottom and / or on the furnace muffle side walls forming wall elements or is formed.
  • the functional element can then be used as a barrier or leakage protection for grease.
  • the functional elements in the form of shots in at least one of the furnace muffle side walls forming wall elements or molded are. Then the functional elements can assume a supporting function here.
  • a preferred embodiment of the oven muffle is characterized in that at the two, the furnace muffle side walls forming wall elements receptacles are arranged, which form in the direction of the oven muffle depth guides for baking trays. Again, the idea of simple cleanability is consistently taken into account.
  • the functional element can also be molded in the form of a grease trap as a recess in the oven muffle bottom.
  • the interior of at least two mold parts is limited.
  • the moldings can then be assembled to limit the interior at least partially.
  • the shaped parts form the oven-muffle bottom, the two oven muffle side walls and the oven muffle lid in the manner of a frame. This results in a stable construction.
  • At least one plate-like wall element is held on the molding, which limits the Innraum and that the molding and the at least one plate-like wall element frame-like the Ofenmuffelboden, the two Ofenmuffel discharge subject and the Ofenmuffeldeckel.
  • a stable fixation of the dressing succeeds in a simple manner in that the shaped parts or the shaped part and the plate-like wall element are braced against one another by means of strapping elements.
  • the strapping element is at least partially resilient or has a spring element.
  • the strapping element has holding elements. Then, for example, heating elements can be attached to the strapping element.
  • the holding elements can also be used to suspend the oven muffle in the stove.
  • the support member may also have a luminous element for illuminating the interior.
  • a temperature-resistant luminous element can be used in particular also optical fibers, which couple their light in the edge of the wall element in the region of the joint.
  • the Fig. 1 shows a sheet-like rectangular blank 10.1 made of glass or glass ceramic, which is suspended from a glass / glass ceramic tape. On the top of the blank 10.1 a continuous projection 17 is profiled, which is formed during rolling, the glass ribbon from the melt.
  • dashed lines of bends 18.1 are indicated, which extend in the width direction of the blank 10.1.
  • At these bending lines 18.1 of the blank 10.1 to the in Fig. 2 formed molding 10 formed.
  • two vertical lateral wall elements 11 are bent in a U-shape by a horizontal wall element 12 on the bending lines 18.1 to form rounded bending edges 18. It is also conceivable that the wall elements 11 are employed at an angle greater than 90 ° to the wall element 12 V-shaped.
  • the projection 17 forms in the region of the front of the oven muffle an overflow barrier on the oven (wall element 12), which prevents leakage of, for example, fat.
  • the inner surfaces 13 of the wall elements 11 and 12 are rounded in favor of a good cleanability in the coupling areas into each other.
  • the front and back edges of the wall elements 11 and 12 are flush with each other, so that there are flat sealing surfaces 19.1 and 19.3.
  • an oven door (not shown) and at the back another wall element (not shown) can be struck sealed.
  • the free ends of the wall elements 11 form horizontal sealing surfaces 19.2.
  • Fig. 2 and 3 is a blank 10.1 or a molding 10 for a furnace muffle described in their design of the blank 10.1 and the molding 10 according to Fig. 1 and 2 correspond.
  • the only difference is the formation of a second projection 17. This is arranged in the back Ofenmuffel Symposium. Between the two bottom projections 17 and the respective wall elements 11 thus a spatially limited collection is formed.
  • FIGS. 5 and 6 Embodiments of the invention are shown which the Fig. 1 and 2 essentially correspond.
  • Fig. 5 is recessed into the inner surface 13 of the lateral wall elements 11 forming blank areas a wave-shaped profiling.
  • rail-shaped receptacles 15 are shown, which extend in the direction of the oven muffle depth (corresponds to the width of the blank 10.1).
  • the receptacles 15 are limited by the projections 16 of the wave-shaped profilings. The profiling is pronounced during the rolling of the glass ribbon from the melt.
  • the receptacles 15 of the two wall elements 11 are arranged opposite one another such that baking trays or guide rails can be inserted there.
  • the wave-shaped profiling can be provided both in the inner and in the outer surface 13 and 14 of the wall elements 11, so that overall a wavy image of the lateral muffle wall (wall element 11) results.
  • the function of the internally resulting receptacles 15 and projections 16 corresponds to the according to Fig. 6 , However, the projections 16 according to FIGS. 7 and 8 be more intense.
  • a molding for a furnace muffle is shown, in which the bottom-side wall element 12 for receiving overflow a recess 20th having.
  • a depression in the ground area is shown in the forming process or as a downstream separate deformation process, a depression in the ground area lowered. This trough-shaped depression can usually be generated when reheated solely by the gravity of the glass-ceramic disc.
  • the Fig. 12 to 14 also show the formation of a floor pan for receiving overflow volume.
  • the bottom pan has been produced by forced deformation of the precursor glass by pressing or vacuum-sinking.
  • the advantage here is that larger and sharper pronounced shapes (bending edges 20.1 and 20.2) are possible, as in the production as in 10 and 11 shown.
  • a component for a furnace muffle is shown, which is composed of two U-shaped moldings 10, which except for the projection 17 accordingly Fig. 2 are manufactured and designed.
  • the two mold parts 10 are identical, which is why only one production tool is required.
  • the two molded parts 10 are placed with the interposition of a Teflon or graphite tape as a sealing element 19.4 in the region of the sealing surfaces 19.2 against each other. This results in a peripheral frame, in which the lateral wall elements 11 of the two mold parts 10 each form the oven muffle side walls and the wall elements 12 each form the Ofenmuffelisdietarymoi bottom wall.
  • the frame-like component is held in shape with two strapping elements 30, which are designed as tightening straps.
  • the strapping element (30) is designed as a metal band which is provided at its band ends with outwardly directed bends 31. From the bends 31 tabs 31.1 are punched and bent. The tabs 31.1 each have an opening 31.2.
  • the strapping elements 30 are looped around the front and back of the frame and the band ends aligned. Between the strapping element (30) and the molded parts 10, a Teflon or graphite tape can be inserted as scratch protection.
  • the band ends of the strapping element 30 are connected to a spring element 32.
  • the spring ends are mounted biased in the openings 31.2 of the angled portions 31. This takes into account the different thermal expansion behavior.
  • the spring element 32 may also be other than the in Fig. 16 be shown. It is also conceivable that the two mold parts 10 are materially connected to each other, for example, soldered or welded.
  • FIGS. 17 and 18 shown arrangement corresponds to Fig. 14 and 15 ,
  • support members 40 are used in the form of profile sections.
  • the support members 40 have a web 40 which carries a thickened projection 42 in the region of the outside.
  • a holding section 44 is integrally formed on the web 40, which carries two legs 45.
  • the legs 45 are spaced parallel to each other. From the leg ends 45 go right end sections 46, so that there is an undercut, extending in the depth direction recording 43.
  • fasteners racks, baking trays, rollers, guide rails, etc.
  • the projection 42 and the holding portion 44 prevent the support member 40 can be pulled out of the joint. Between the web 41 and the sealing surfaces 19.2 each sealing elements 19.4 are inserted.
  • the design variant according to FIGS. 19 and 20 is different from the after FIGS. 17 and 18 in that the web 41 of the support member 40 is formed as a hollow profile and receives lighting elements 47 in the form of a light-emitting diode chain for illuminating the cooking chamber. It is also conceivable, of course, a support member 40 which does not form a receptacle 43 and receives only the lighting elements 47.
  • the lateral wall elements 11 of the U-profile to design higher and set up as a muffle cover a substantially straight wall element 50 in the form of a glass-ceramic disc.
  • the connection and attachment is analogous to those in 15 to 20 described possibilities.
  • the strapping element 30 For holding the oven muffle in the entire oven is proposed to provide the strapping element 30 with a pronounced tab 33, as in Fig. 23 shown.
  • the pronounced tabs 23 can be flexibly connected by crimping, screwing, riveting or welding to a hearth frame 60.
  • a sealing element 34 can be snapped in the form of a circumferential fabric tube. This is a well-known technique that is already used today in pyrolysis ovens. This type of connection takes account of the different dimensions of glass ceramic and metal and ensures that thermal breakage does not cause breakage of the oven muffle.
  • the sealing element 34 is held by a clamp 35.
  • the bracket 35 is disposed between the strapping member 30 and the hearth frame 60 as this Fig. 24 illustrated.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Baking, Grill, Roasting (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)

Claims (16)

  1. Moufle de four, plus particulièrement moufle de four de cuisson, avec au moins deux éléments de parois adjacents (11, 12, 50), qui délimitent au moins partiellement un espace interne servant plus particulièrement de chambre de cuisson, les éléments de parois (11, 12, 50) étant constitués de verre ou de céramique vitreuse,
    les éléments de parois adjacents (11, 12, 50) formant un angle entre eux,
    les éléments de parois (11, 12, 50) étant reliés entre eux d'une seule pièce et constituant une pièce de forme (10),
    l'espace interne étant délimité par au moins deux pièces de forme (10) ou par une pièce de forme (10) et un élément de paroi en forme de plaque (50),
    caractérisé en ce que au niveau de la jointure entre deux pièces de formes adjacentes (10) ou au niveau de la jointure entre une pièce de forme (10) et un élément de paroi en forme de plaque (50), est maintenue une pièce de support (40).
  2. Moufle de four selon la revendication 1,
    caractérisé en ce que
    la pièce de forme (10) comprend trois éléments de parois (11, 12) et en ce que les éléments de parois (11, 12) sont disposés de façon à ce que la pièce de forme est conçue globalement en forme de V ou de U.
  3. Moufle de four selon la revendication 2,
    caractérisé en ce que
    à partir de l'élément de paroi (13), conçu comme une paroi de fond ou de recouvrement, sur des éléments de parois opposés, les deux éléments de parois (11) conçus comme des parois latérales sont pliés (arête pliée 18).
  4. Moufle de four selon l'une des revendications 1 à 3,
    caractérisé en ce que
    les bords de limitation, orientés vers le côté avant et/ou le côté arrière du moufle de four, des éléments de parois (11, 12) pliés les uns contre les autres effectuent une transition les uns vers les autres pour la formation d'une surface d'étanchéité plane (19.1 et/ou 19.3) et/ou
    au moins un des éléments de parois (11, 12) forme, au niveau de son côté opposé à l'autre élément de paroi (11, 12) formé, une surface d'étanchéité plane (19.2).
  5. Moufle de four selon l'une des revendications 1 à 4,
    caractérisé en ce que
    au moins un des éléments de parois (11, 12) comprend au moins un élément fonctionnel formé d'une seule pièce, plus particulièrement une saillie (16, 17), un logement (15) ou un creux (20), qui est formé dans la surface interne (13), orientée vers l'espace interne, de l'élément de paroi (11, 12) ou dépasse dans l'espace interne en saillie par rapport à la surface interne (13).
  6. Moufle de four selon la revendication 5,
    caractérisé en ce que
    l'élément fonctionnel est une saillie (17) qui est formée, au niveau du côté avant et/ou du côté arrière du moufle de four, au niveau des éléments de parois (11, 12) constituant le fond du moufle de four et/ou les parois latérales du moufle de four.
  7. Moufle de four selon la revendication 5 ou 6,
    caractérisé en ce que
    les éléments fonctionnels sont formés sous la forme de logements (15) dans au moins un des éléments de parois (11, 12) constituant les parois latérales du moufle de four.
  8. Moufle de four selon la revendication 7,
    caractérisé en ce que
    au niveau des deux éléments de parois (11), constituant les parois latérales du moufle de four, se trouvent des logements (15) qui forment des guidages pour des tôles de cuisson s'étendant en direction de la profondeur du moufle de four.
  9. Moufle de four selon l'une des revendications 5 à 8,
    caractérisé en ce que
    l'élément de paroi (12) constituant le fond du moufle de four comprend une indentation (20) réalisée dans la surface interne (13).
  10. Moufle de four selon l'une des revendications 1 à 9,
    caractérisé en ce que
    les pièces de forme (10) constituent, à la manière d'un cadre, les deux parois latérales du moufle de four et le couvercle du moufle de four.
  11. Moufle de four selon l'une des revendications 1 à 9,
    caractérisé en ce que
    au niveau de la pièce de forme (10), est maintenu au moins un élément de paroi en forme de plaque (50) qui délimite l'espace interne.
  12. Moufle de four selon la revendication 11,
    caractérisé en ce que
    la pièce de forme (10) et l'au moins un élément de paroi en forme de plaque (50) constituent, à la manière d'un cadre, le fond du moufle de four, les deux parois latérales du moufle de four et le couvercle du moufle de four.
  13. Moufle de four selon l'une des revendications 1 à 12,
    caractérisé en ce que
    les pièces de forme ou la pièce de forme (10) et l'élément de paroi en forme de plaque (50) sont serrées les unes contre les autres au moyen d'éléments de cerclage (30).
  14. Moufle de four selon la revendication 13,
    caractérisé en ce que
    l'élément de cerclage (30) est conçu au moins partiellement de manière élastique ou comprend un élément de ressort (32).
  15. Moufle de four selon l'une des revendications 1 à 14,
    caractérisé en ce que
    la pièce de support (40) comprend au moins un logement de fixation (43) orienté vers l'espace interne.
  16. Moufle de four selon l'une des revendications précédentes,
    caractérisé en ce que
    l'élément de cerclage (30) comprend des éléments de maintien (33) et/ou la pièce de support comprend au moins un élément d'éclairage (47) et/ou l'élément de cerclage (30) supporte un élément d'étanchéité (34).
EP09005032.9A 2008-05-29 2009-04-04 Moufle de four Not-in-force EP2128529B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810025907 DE102008025907B4 (de) 2008-05-29 2008-05-29 Ofenmuffel

Publications (3)

Publication Number Publication Date
EP2128529A2 EP2128529A2 (fr) 2009-12-02
EP2128529A3 EP2128529A3 (fr) 2009-12-30
EP2128529B1 true EP2128529B1 (fr) 2016-09-14

Family

ID=40887168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09005032.9A Not-in-force EP2128529B1 (fr) 2008-05-29 2009-04-04 Moufle de four

Country Status (5)

Country Link
US (1) US8794226B2 (fr)
EP (1) EP2128529B1 (fr)
JP (1) JP5582724B2 (fr)
CN (1) CN101592347B (fr)
DE (1) DE102008025907B4 (fr)

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Publication number Publication date
US20090301460A1 (en) 2009-12-10
EP2128529A3 (fr) 2009-12-30
JP5582724B2 (ja) 2014-09-03
CN101592347B (zh) 2013-07-10
US8794226B2 (en) 2014-08-05
JP2009287916A (ja) 2009-12-10
CN101592347A (zh) 2009-12-02
DE102008025907A1 (de) 2009-12-03
EP2128529A2 (fr) 2009-12-02
DE102008025907B4 (de) 2015-04-30

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