EP1537365A1 - Baking oven having a linear pull-out element - Google Patents

Baking oven having a linear pull-out element

Info

Publication number
EP1537365A1
EP1537365A1 EP03747912A EP03747912A EP1537365A1 EP 1537365 A1 EP1537365 A1 EP 1537365A1 EP 03747912 A EP03747912 A EP 03747912A EP 03747912 A EP03747912 A EP 03747912A EP 1537365 A1 EP1537365 A1 EP 1537365A1
Authority
EP
European Patent Office
Prior art keywords
oven
muffle
slide
hook
holding
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
EP03747912A
Other languages
German (de)
French (fr)
Other versions
EP1537365B2 (en
EP1537365B1 (en
Inventor
Kerstin Feldmann
Peter Mallinger
Horst Fernsebner
Franz Götzendorfer
Thomas Maier
Dieter Mlotek
Hans Rogenhofer
Michael Schilcher
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1537365A1 publication Critical patent/EP1537365A1/en
Application granted granted Critical
Publication of EP1537365B1 publication Critical patent/EP1537365B1/en
Publication of EP1537365B2 publication Critical patent/EP1537365B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • F24C15/168—Shelves, racks or trays inside ovens; Supports therefor with telescopic rail systems
    • 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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor

Definitions

  • the present invention relates to an oven with a horizontally guided in a furnace muff bracket part for receiving and holding a food support, which is displaceable between a cooking position in the oven muffle and a removal position lying in front of this.
  • a generic oven with a holding part guided in an oven muffle and fastened to two horizontally displaceable slides is known from DE 198 25 323 A1.
  • the holding part serves to receive and hold food carriers which can be moved between a cooking position in the oven muffle and an at least partially removal position lying in front of the oven muffle.
  • the slides are each arranged in an upper area of the furnace muffle, near an upper heat.
  • An object of the invention is to further improve an oven according to the preamble of claim 1 with regard to the stability and the compactness of the horizontal guide.
  • this goal is achieved with an oven according to the preamble of patent claim 1 by two holding elements which are displaceably guided on opposite side walls of the oven muffle and are each spaced apart from an upper side and an underside of the oven muffle. Due to the arrangement of the holding element or its guides spaced from the upper and lower heating elements of the furnace muffle, the surface available for the heating elements of the top heat and the bottom heat in the furnace muffle is not impaired by guide elements arranged in the vicinity thereof. Rather, almost the entire width of the furnace muffle is available for the arrangement of the upper and lower heating elements. In addition, the approximately centrally arranged holding element is subject to a lower bending moment when a food support is suspended in an uppermost or a lowermost insertion position.
  • each holding element comprises at least one horizontally displaceable slide for the horizontal guidance of a cooking deposit surface.
  • Each of the two slides is preferably arranged in a central region on the side wall of the furnace muffle.
  • the holding element comprises a hook rail which is guided and suspended on the slide.
  • the two hook rails preferably each extend vertically, so that their longitudinal extension directions are each arranged perpendicular to the direction of extension.
  • the length of the hook rails is expediently slightly less than the height of the furnace muffle.
  • the two hook rails are coupled to one another with a rigid cross strut or cross connection, so that one of the two hook rails cannot be accidentally moved backwards when a food support is hooked in and must be manually pulled forward again.
  • a latching position of the slide can expediently be provided. In this way, the food support can be easily hooked into the hook rail and then pushed into the cooking position by light pressure to overcome the catch.
  • Such a locking position can advantageously also be provided in a cooking position.
  • Rolling bearings are particularly suitable as bearings for the slides. These bearings can either have grease lubrication or run dry. Rolling elements and / or raceways made of ceramic or with a ceramic coating are particularly suitable for this. Dry roller bearings of this type are particularly suitable for pyrolysis operation of the oven, since temperatures of up to 500 ° C. are reached, which conventional grease lubrication of roller bearings would not be able to withstand.
  • a further preferred embodiment of the invention provides electrical insulation of the slides and the hook rails from the oven and from the oven muffle, thereby it becomes microwave-safe.
  • the electrical insulation prevents sparking or high voltage flashover on electrical parts in the furnace muffle. Electrical insulation can be achieved, for example, by the rolling elements being made of electrically insulating ceramic or the like.
  • FIG. 1 shows a schematic perspective illustration of an oven muffle with a holding part located in the cooking position
  • FIG. 2 shows a perspective schematic representation of the oven muffle with the holding part located in the removal position and the food support suspended therein,
  • FIGS. 3 and 4 show a first variant of a slide guide of the holding element in two views or sectional views
  • FIGS. 5 and 6 show a second variant of the slide guide in two views or sectional views
  • FIG. 7 shows two hook rails coupled to one another by a cross strut in a perspective view
  • FIG. 8 shows a schematic illustration of a device for locking the slide in preferred positions.
  • FIG. 1 shows an oven muffle 2 of an oven in a perspective and schematic representation.
  • An oven door 5 which is in the closed position against a front frame 4 and closes the oven muffle 2 at the front is in the open, pivoted position horizontally to the bottom.
  • a holding part 1 2 according to the invention for supporting and guiding a food support comprises two holding elements 13 which, in the exemplary embodiment shown, have two hook rails 14, which are each guided horizontally displaceably on a guide rail 18 on side walls 6 of the oven muffle.
  • a carriage 16 can be placed on each of the two guide rails 18 in slide horizontally.
  • a nj edem sled 1 6 is a hook rail 1 4 rigidly attached.
  • the hook rails 14 which consist of narrow, elongated sheet metal strips, have a longitudinal direction perpendicular to the pull-out direction and parallel to the side walls 6.
  • the hook rails 14 are preferably each at a relatively small distance from an upper side 10 and from a bottom surface 8 of the oven muffle 2, so that the food supports can be arranged close to or away from the top or bottom heat as required.
  • the guide rails 18 expediently extend over approximately the same length, which corresponds to a depth of the furnace muffle 2. In this way, the slides 16 with the hook rails 14 attached to them can be moved approximately over the entire depth of the furnace muffle 2.
  • the guide rails 18 are each arranged in a central region of the side walls 6, so that the guide rail 18 and the slide 1 6 and the hook rail 1 4 fastened thereon do not adversely affect heating elements of an upper or lower heat.
  • the maximum bending moment on the hook rails 14 when hanging a food support in a lower insertion position is significantly reduced.
  • the holder part 12 can be significantly more compact with the same stability.
  • each hook rail 14 has five grooves 22 spaced apart from one another, each of which defines an insertion height for a food support.
  • they can each have an indentation along their longitudinal direction, which can increase their bending stiffness and can thus prevent contact with the side walls 6, even if several food supports with correspondingly high loads are attached.
  • FIG. 2 shows the hook rails 14 in a front removal position, in which both carriages 16 with the hook rails 14 attached to them are each on a front stand near the front frame 4.
  • a food support 24 is hooked into the corresponding grooves 22 from below in a second position.
  • a further development of the holder part 12 according to the invention can lie in a combination with telescopic pull-outs. In this way, a so-called full extension can be realized, in which the food support 24 can be pulled out into a position in front of the front frame 4.
  • the exemplary embodiment shown with the rail pull-out allows only a partial pull-out in which a rear edge of the food support 24 in the removal position is still inside the oven muffle 2.
  • FIG. 3 shows a first variant of guiding the carriage 16 on the guide rail 18.
  • two rolling elements 20 are rotatably mounted.
  • a rolling element 20 slides on an upper side or on an upper edge of the guide rail 18.
  • the other rolling element 20 slides on an underside or on a lower edge of the guide rail 18.
  • the arrangement shown in FIG. 3 is also due to the weight exerted by the food support
  • One rolling element 20 above and one below the guide rail 18 is sufficient.
  • the rolling elements 20 are arranged offset with respect to one another in the slide 16, so that by tilting the slide 16 the slide 16 can optionally be detached from the guide rail 18 and removed.
  • the weight moment exerted by a food support, which stabilizes the slide 16, is indicated by an arrow.
  • two rolling elements can be provided at the bottom and / or at the bottom, as shown in FIG. 5.
  • FIG. 4 shows a sectional illustration of a holding element 13 of the holding part 12 in a viewing direction parallel to the pull-out direction of the slide 16.
  • the guide rail 18 is firmly anchored in the side wall 6 and has a vertical guide section with rounded upper and lower edges, which simultaneously act on the running surfaces form for the rolling elements 20.
  • the rolling elements 20 are shown in the embodiment shown.
  • the hook rail 14 is rigidly fastened.
  • FIGS. 5 and 6 show in two views or partial sections an alternative embodiment of the holding element 12 according to the invention, in which four roller bodies 20 are rotatably mounted in each slide 16.
  • two spaced-apart rolling elements 20 slide on the upper and on the lower edge of the guide rail 18.
  • This has a front stop 34 and a rear stop 36, against which the slide 16 can abut.
  • the stops 34, 36 define the maximum path that the carriage 16 can travel on the guide rail 18.
  • the guide rail 18 is anchored to the side wall via a plurality of fastening points 38.
  • Figure 5 illustrates an offset assembly of the hook rail 14 on the carriage 16 so that it is moved closer to the front frame of the furnace muffle in the removal position. This may make it easier to hang up and remove the food support.
  • the slide 16 has a bowl-shaped contour with the rolling elements 20 suspended on one side.
  • the hook rail 14 is fastened to the closed side of the slide 16, while the open side faces the side wall 6 of the furnace muffle.
  • the carriage 16 largely engages around the guide rail 18, so that overall a very compact and space-saving unit is formed.
  • the rolling elements in the second variant are designed as symmetrical double cones, each with blunt end faces, the central edge of which slides in a correspondingly trench-shaped track of the guide rail.
  • This alternative design of the slide and the guide rail is characterized by particular compactness.
  • the holding part 12 with the two holding elements 13 can be made particularly narrow and space-saving in this way, so that the overall width of the furnace muffle is hardly enlarged compared to a furnace muffle provided with conventional inserts. Possibly.
  • the guide rail placed on the side walls 6 of the furnace muffle 2 can also be countersunk in a corresponding recess, so that essentially only the hook rail is at a short distance from the side wall 6 the oven muffle protrudes from the side outline. In this way, a further reduction in the overall width of the furnace muffle can be achieved.
  • FIG. 6 shows a food support 24 suspended in grooves 22, which is located in a middle insertion position approximately at the level of the guide rail 18.
  • FIG. 7 shows a perspective view of a preferred embodiment of the holding part 12, in which the two hook rails 14 are connected to one another by a connecting strut 26. In this way, it can be avoided that one of the hook rails 14 is accidentally pushed backwards when the food support is hooked in.
  • FIG. 8 shows a possible embodiment of a locking device 27, which consists of a spring-loaded ball 30, which can snap into a recess 32 in the guide rail 18.
  • the ball 30 is preferably held in the carriage and can engage in a recess 32 located in the front region of the guide rail 18 and thus defining a detent in the removal position.
  • a further recess can be provided in a rear region of the guide rail 18, which defines a further latching position in the cooking position of the food support.
  • the locking positions preferably correspond to the corresponding stops of the slide (see FIG. 6), so that in practice the maximum displacement of the holding element is used.
  • roller bearing of the slide shown cannot have conventional grease lubrication.
  • roller pairs made of ceramic or with a ceramic coating are particularly suitable.
  • Such a pair of rollers also has the further advantage that the holding part 12 can be electrically insulated from the furnace muffle. This enables the oven to be used in a microwave oven, since there is no risk of spark and high voltage flashovers due to the insulation of the holding element.
  • the material for the guide rails, the slides and the hook rails comes in question, for example, aluminum, stainless steel or brass, which may have a ceramic coating on the guide rail.

Abstract

The oven has a horizontal holder part (12) in the oven wall (2) to take and hold a cooking shelf (24) which can move from the pushed-in position for cooking to a removal position in front of the oven. The holding part consists of two movable holding elements (13), which are on opposite side walls (6) and spaced out from the top (10) and bottom (8).

Description

Backofen mit Linearauszug Linear pull-out oven
Die vorliegende Erfindung betrifft einen Backofen mit einem in einer Ofenmuffel horizontal geführten Halterungsteil zur Aufnahme und Halterung einer Gargutauflage, das zwischen einer Garposition in der Ofenmuffel und einer vor dieser liegenden Entnahmeposition verschiebbar ist.The present invention relates to an oven with a horizontally guided in a furnace muff bracket part for receiving and holding a food support, which is displaceable between a cooking position in the oven muffle and a removal position lying in front of this.
Ein gattungsgemäßer Backofen mit einem in einer Backofenmuffel geführten Halterungsteil, das an zwei horizontal verschiebbaren Schlitten befestigt ist, ist aus der DE 198 25 323 A1 bekannt. Das Halterungsteil dient zur Aufnahme und Halterung von Gargutträgern, die zwischen einer Garposition in der Ofenmuffel und einer zumindest teilweise vor der Ofenmuffel liegenden Entnahmeposition verschoben werden können. Die Schlitten sind jeweils in einem oberen Bereich der Ofenmuffel, nahe einer Oberhitze angeordnet.A generic oven with a holding part guided in an oven muffle and fastened to two horizontally displaceable slides is known from DE 198 25 323 A1. The holding part serves to receive and hold food carriers which can be moved between a cooking position in the oven muffle and an at least partially removal position lying in front of the oven muffle. The slides are each arranged in an upper area of the furnace muffle, near an upper heat.
Ein Ziel der Erfindung besteht darin, einen Backofen nach dem Oberbegriff des Patentanspruchs 1 hinsichtlich der Stabilität sowie der Kompaktheit der horizontalen Führung weiter zu verbessern.An object of the invention is to further improve an oven according to the preamble of claim 1 with regard to the stability and the compactness of the horizontal guide.
Erfindungsgemäß wird dieses Ziel mit einem Backofen nach dem Oberbegriff des Patent- anspruchs 1 durch zwei an gegenüber liegenden Seitenwänden der Ofenmuffel verschiebbar geführte Halteelemente erreicht, die jeweils beabstandet zu einer Oberseite sowie zu einer Unterseite der Ofenmuffel angeordnet sind. Durch die jeweils von oberen und unteren Heizelementen der Ofenmuffel beabstandete Anordnung des Halteelements bzw. dessen Führungen wird die zur Verfügung stehende Fläche für die Heizelemente der Oberhitze sowie der Unterhitze in der Ofenmuffel nicht durch in deren Nähe angeordnete Führungselemente beeinträchtigt. Vielmehr steht annähernd die gesamte Baubreite der Ofenmuffel zur Anordnung der oberen und unteren Heizelemente zur Verfügung. Zudem unterliegt das ungefähr mittig angeordnete Halteelement einem geringeren Biegemoment, wenn eine Gargutauflage in einer obersten oder einer untersten Einschubposition eingehängt ist.According to the invention, this goal is achieved with an oven according to the preamble of patent claim 1 by two holding elements which are displaceably guided on opposite side walls of the oven muffle and are each spaced apart from an upper side and an underside of the oven muffle. Due to the arrangement of the holding element or its guides spaced from the upper and lower heating elements of the furnace muffle, the surface available for the heating elements of the top heat and the bottom heat in the furnace muffle is not impaired by guide elements arranged in the vicinity thereof. Rather, almost the entire width of the furnace muffle is available for the arrangement of the upper and lower heating elements. In addition, the approximately centrally arranged holding element is subject to a lower bending moment when a food support is suspended in an uppermost or a lowermost insertion position.
Jedes Halteelement umfasst in einer bevorzugten Ausführungsform der Erfindung wenigstens einen horizontal verschiebbaren Schlitten zur horizontalen Führung einer Gar- gutauflage. Vorzugsweise ist jeder der beiden Schlitten in einem mittleren Bereich an der Seitenwand der Ofenmuffel angeordnet. Mit der erfindungsgemäßen Anordnung kann auf einfache Weise eine sehr platzsparende Führung der ausziehbaren Gargutauflage erreicht werden. Die Führungselemente weisen weiterhin eine sehr geringe Masse und gleichzeitig eine hohe Stabilität auf.In a preferred embodiment of the invention, each holding element comprises at least one horizontally displaceable slide for the horizontal guidance of a cooking deposit surface. Each of the two slides is preferably arranged in a central region on the side wall of the furnace muffle. With the arrangement according to the invention, a very space-saving guidance of the extendable food support can be achieved in a simple manner. The guide elements also have a very low mass and at the same time a high stability.
Eine Ausführungsform der Erfindung sieht vor, dass das Halteelement eine Hakenschiene umfasst, die an dem Schlitten verschiebbar geführt und aufgehängt ist. Vorzugsweise erstrecken sich die beiden Hakenschienen jeweils vertikal, so dass ihre Längserstre- ckungsrichtungen jeweils senkrecht zur Auszugsrichtung angeordnet sind. Die Länge der Hakenschienen beträgt zweckmäßigerweise etwas weniger als die Höhe der Ofenmuffel. Im ausgezogenen Zustand der Führungsschienen können in verschiedenen Positionen der Hakenschienen eine oder mehrere Gargutauflagen eingehängt werden.An embodiment of the invention provides that the holding element comprises a hook rail which is guided and suspended on the slide. The two hook rails preferably each extend vertically, so that their longitudinal extension directions are each arranged perpendicular to the direction of extension. The length of the hook rails is expediently slightly less than the height of the furnace muffle. When the guide rails are extended, one or more food supports can be hung in different positions of the hook rails.
Gegebenenfalls sind die beiden Hakenschienen mit einer starren Querverstrebung bzw. Querverbindung miteinander gekoppelt, so dass nicht versehentlich eine der beiden Hakenschienen beim Einhängen einer Gargutauflage nach hinten verschoben werden kann und manuell wieder nach vorne gezogen werden muss. Zumindest in der Entnahmeposition kann zweckmäßigerweise eine Rastposition der Schlitten vorgesehen sein. Auf diese Weise kann die Gargutauflage problemlos in die Hakenschiene eingehängt werden und dann durch leichten Druck zur Überwindung der Rastung in die Garposition geschoben werden. Eine derartige Rastposition kann vorteilhafterweise auch zusätzlich in einer Garposition vorgesehen sein.If necessary, the two hook rails are coupled to one another with a rigid cross strut or cross connection, so that one of the two hook rails cannot be accidentally moved backwards when a food support is hooked in and must be manually pulled forward again. At least in the removal position, a latching position of the slide can expediently be provided. In this way, the food support can be easily hooked into the hook rail and then pushed into the cooking position by light pressure to overcome the catch. Such a locking position can advantageously also be provided in a cooking position.
Als Lagerung für die Schlitten eignen sich insbesondere Wälzlager. Diese Wälzlager können entweder eine Fettschmierung aufweisen oder wahlweise trocken laufen. Hierfür eignen sich insbesondere Wälzkörper und/oder Laufbahnen aus Keramik bzw. mit einer keramischen Beschichtung. Derartige trockene Wälzlagerungen eignen sich insbesondere für einen Pyrolysebetrieb des Backofens, da hierbei Temperaturen von bis zu 500 °C er- reicht werden, denen eine herkömmliche Fettschmierung von Wälzlagern nicht standhalten würde.Rolling bearings are particularly suitable as bearings for the slides. These bearings can either have grease lubrication or run dry. Rolling elements and / or raceways made of ceramic or with a ceramic coating are particularly suitable for this. Dry roller bearings of this type are particularly suitable for pyrolysis operation of the oven, since temperatures of up to 500 ° C. are reached, which conventional grease lubrication of roller bearings would not be able to withstand.
Eine weitere bevorzugte Ausführungsform der Erfindung sieht eine elektrische Isolierung der Schlitten und der Hakenschienen vom Backofen und von der Ofenmuffel vor, wodurch dieser mikrowellentauglich wird. Durch die elektrische Isolierung kann ein Funken- bzw. Hochspannungsüberschlag auf elektrische Teile in der Ofenmuffel vermieden werden. Eine elektrische Isolierung kann bspw. dadurch erreicht werden, dass die Wälzkörper aus elektrisch isolierendem Keramik oder dgl. bestehen.A further preferred embodiment of the invention provides electrical insulation of the slides and the hook rails from the oven and from the oven muffle, thereby it becomes microwave-safe. The electrical insulation prevents sparking or high voltage flashover on electrical parts in the furnace muffle. Electrical insulation can be achieved, for example, by the rolling elements being made of electrically insulating ceramic or the like.
Die Erfindung wird nachfolgen anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen näher erläutert. Es zeigen:The invention will be explained in more detail using exemplary embodiments with reference to the drawings. Show it:
Figur 1 eine schematische Perspektivdarstellung einer Ofenmuffel mit in Garposition befindlichem Halterungsteil,FIG. 1 shows a schematic perspective illustration of an oven muffle with a holding part located in the cooking position,
Figur 2 eine perspektivische Schemadarstellung der Ofenmuffel mit in Entnahmeposition befindlichem Halterungsteil und darin eingehängter Gargutauflage,FIG. 2 shows a perspective schematic representation of the oven muffle with the holding part located in the removal position and the food support suspended therein,
Figuren 3 und 4 eine erste Variante einer Schlittenführung des Halteelements in zwei Ansichten bzw. Schnittdarstellungen,FIGS. 3 and 4 show a first variant of a slide guide of the holding element in two views or sectional views,
Figuren 5 und 6 eine zweite Variante der Schlittenführung in zwei Ansichten bzw. Schnittdarstellungen,FIGS. 5 and 6 show a second variant of the slide guide in two views or sectional views,
Figur 7 zwei durch eine Querstrebe miteinander gekoppelte Hakenschienen in perspektivischer Darstellung und7 shows two hook rails coupled to one another by a cross strut in a perspective view and
Figur 8 eine schematische Darstellung einer Vorrichtung zur Verrastung d es S chlit- tens in bevorzugten Positionen.FIG. 8 shows a schematic illustration of a device for locking the slide in preferred positions.
Figur 1 zeigt eine Ofenmuffel 2 eines Backofens in perspektivischer und schematischer Darstellung. Eine in geschlossener Position an einem Frontrahmen 4 anliegende und die Ofenmuffel 2 frontseitig verschließende Backofentür 5 befindet sich in geöffneter, waag- recht n ach u nten g eschwenkter Position. E in e rfindungsgemäßes H alterungsteil 1 2 zur Auflage und Führung einer Gargutauflage umfasst zwei Halteelemente 13, die im gezeigten Ausführungsbeispiel zwei Hakenschienen 14 aufweisen, die jeweils an Seitenwänden 6 der Ofenmuffel an einer Führungsschiene 18 horizontal verschiebbar geführt sind. Zu diesem Zweck kann jeweils ein Schlitten 16 auf jeder der beiden Führungsschienen 18 in horizontaler Richtung entlang gleiten. A n j edem S chlitten 1 6 i st e ine H akenschiene 1 4 starr befestigt. Die aus schmalen länglichen Blechstreifen bestehenden Hakenschienen 14 weisen eine Längserstreckungsrichtung senkrecht zur Auszug richtung und parallel zu den Seitenwänden 6 auf. Vorzugsweise weisen die Hakenschienen 14 jeweils einen rela- tiv geringen Abstand zu einer Oberseite 10 sowie zu einer Bodenfläche 8 der Ofenmuffel 2 auf, so dass die Gargutauflagen je nach Bedarf nahe an bzw. entfernt von der Oberbzw, der Unterhitze angeordnet werden können.Figure 1 shows an oven muffle 2 of an oven in a perspective and schematic representation. An oven door 5 which is in the closed position against a front frame 4 and closes the oven muffle 2 at the front is in the open, pivoted position horizontally to the bottom. A holding part 1 2 according to the invention for supporting and guiding a food support comprises two holding elements 13 which, in the exemplary embodiment shown, have two hook rails 14, which are each guided horizontally displaceably on a guide rail 18 on side walls 6 of the oven muffle. For this purpose, a carriage 16 can be placed on each of the two guide rails 18 in slide horizontally. A nj edem sled 1 6 is a hook rail 1 4 rigidly attached. The hook rails 14, which consist of narrow, elongated sheet metal strips, have a longitudinal direction perpendicular to the pull-out direction and parallel to the side walls 6. The hook rails 14 are preferably each at a relatively small distance from an upper side 10 and from a bottom surface 8 of the oven muffle 2, so that the food supports can be arranged close to or away from the top or bottom heat as required.
Die Führungsschienen 18 erstrecken sich zweckmäßigerweise über annähernd eine glei- ehe Länge, die einer Tiefe der Ofenmuffel 2 entspricht. Auf diese Weise können die Schlitten 16 mit den daran befestigten Hakenschienen 14 annähernd über die gesamte Tiefe der Ofenmuffel 2 verschoben werden. Die Führungsschienen 18 sind jeweils in einem mittleren Bereich der Seitenwände 6 angeordnet, so dass durch die Führungsschiene 18 und den Schlitten 1 6 s owie d ie d aran befestigte H akenschiene 1 4 keine Beein- trächtigung von Heizungselementen einer Ober- oder Unterhitze gegeben ist. Zudem wird deutlich, dass gegenüber einer Führung nahe der Oberseite 10 der Ofenmuffel 2 das maximale Biegemoment auf die Hakenschienen 14 beim Einhängen einer Gargutauflage in e iner unteren Einschubposition deutlich reduziert ist. Das Halterungsteil 12 kann bei gleicher Stabilität deutlich kompakter ausfallen.The guide rails 18 expediently extend over approximately the same length, which corresponds to a depth of the furnace muffle 2. In this way, the slides 16 with the hook rails 14 attached to them can be moved approximately over the entire depth of the furnace muffle 2. The guide rails 18 are each arranged in a central region of the side walls 6, so that the guide rail 18 and the slide 1 6 and the hook rail 1 4 fastened thereon do not adversely affect heating elements of an upper or lower heat. In addition, it is clear that, compared to a guide near the top 10 of the oven muffle 2, the maximum bending moment on the hook rails 14 when hanging a food support in a lower insertion position is significantly reduced. The holder part 12 can be significantly more compact with the same stability.
Die Schlitten 16 mit den daran befestigten Hakenschienen 14 befinden sich in der Darstellung d er F igur 1 i n e iner G arposition in hinterster Stellung, vorzugsweise an einem hinteren Anschlag der Schlitten 16. Eine Gargutauflage kann in zwei auf gleicher Höhe befindliche Nuten 22 jeder Hakenschiene 14 eingehängt werden, so dass sie sich in einer stabilen waagrechten Lage befindet. Im gezeigten Ausführungsbeispiel weist jede Hakenschiene 14 jeweils fünf voneinander beabstandete Nuten 22 auf, die jeweils eine Einlegehöhe für eine Gargutauflage definieren. Zur Erhöhung der Stabilität der Hakenschienen können diese ggf. jeweils eine Einprägung entlang ihrer Längserstreckungsrichtung aufweisen, die für eine Erhöhung ihrer Biegesteifigkeit sorgen kann und a uf d iese W eise eine Berührung mit den Seitenwänden 6 verhindern kann, selbst wenn mehrere Gargutauflagen mit entsprechend hohen Lasten eingehängt sind.The slide 16 with the hook rails 14 attached to it are in the rearmost position in the illustration of the figure 1, preferably at a rear stop of the slide 16. A food support can be placed in two grooves 22 of each hook rail 14 located at the same height be attached so that it is in a stable horizontal position. In the exemplary embodiment shown, each hook rail 14 has five grooves 22 spaced apart from one another, each of which defines an insertion height for a food support. To increase the stability of the hook rails, they can each have an indentation along their longitudinal direction, which can increase their bending stiffness and can thus prevent contact with the side walls 6, even if several food supports with correspondingly high loads are attached.
Figur 2 zeigt die Hakenschienen 14 in einer vorderen Entnahmeposition, bei der beide Schlitten 16 mit den daran befestigten Hakenschienen 14 jeweils an einem vorderen An- schlag in Nähe des Frontrahmens 4 stehen. In der gezeigten Darstellung ist eine Gargutauflage 24 in eine zweite Position von unten in die entsprechenden Nuten 22 eingehängt.FIG. 2 shows the hook rails 14 in a front removal position, in which both carriages 16 with the hook rails 14 attached to them are each on a front stand near the front frame 4. In the illustration shown, a food support 24 is hooked into the corresponding grooves 22 from below in a second position.
Eine Weiterentwicklung des erfindungsgemäßen Halterungsteils 12 kann in einer Kombination mit Teleskopauszügen liegen. Auf diese Weise kann ein sog. Vollauszug realisiert werden, bei dem die Gargutauflage 24 in eine Position vor den Frontrahmen 4 ausgezogen werden kann. Das gezeigte Ausführungsbeispiel mit dem Schienenauszug ermöglicht dagegen nur einen Teilauszug, bei dem sich eine hintere Kante der Gargutauflage 24 in Entnahmeposition noch innerhalb der Ofenmuffel 2 befindet.A further development of the holder part 12 according to the invention can lie in a combination with telescopic pull-outs. In this way, a so-called full extension can be realized, in which the food support 24 can be pulled out into a position in front of the front frame 4. The exemplary embodiment shown with the rail pull-out, on the other hand, allows only a partial pull-out in which a rear edge of the food support 24 in the removal position is still inside the oven muffle 2.
Weiterhin kann es von Vorteil sein, die Führungsschienen 18 sowie die darauf gleitenden Schlitten 16 in eine entsprechende ausgewölbte Vertiefung der Seitenwand 6 zu montieren, wodurch der Platzbedarf des Halteelements 12 minimiert wird. Ggf. kann für die Aufnahme unverändert breiter Gargutauflagen eine geringfügig schmalere Ofenmuffel genü- gen.Furthermore, it can be advantageous to mount the guide rails 18 and the slides 16 sliding thereon in a correspondingly curved recess in the side wall 6, as a result of which the space requirement of the holding element 12 is minimized. Possibly. a slightly narrower oven muffle can suffice to accommodate food items that are still wide.
Figur 3 zeigt eine erste Variante einer Führung des Schlittens 16 auf der Führungsschiene 18. In jedem Schlitten 16 sind jeweils zwei Wälzkörper 20 drehbar gelagert. Ein Wälzkörper 20 gleitet auf einer Oberseite bzw. auf einer oberen Kante der Führungsschiene 18. Der andere Wälzkörper 20 gleitet auf einer Unterseite bzw. auf einer unteren Kante der Führungsschiene 18. Durch das von der Gargutauflage ausgeübte Gewicht ist die in Figur 3 gezeigte Anordnung mit jeweils einem Wälzkörper 20 o ber- u nd u nterhalb d er Führungsschiene 18 ausreichend. Die Wälzkörper 20 sind gegeneinander versetzt im Schlitten 16 angeordnet, so dass durch ein Verkippen des Schlittens 16 dieser ggf. aus der Führungsschiene 18 ausgehängt und entnommen werden kann. Das durch eine Gargutauflage ausgeübte Gewichtsmoment, das für eine Stabilisierung des Schlittens 16 sorgt, ist durch einen Pfeil angedeutet. Alternativ können jeweils unten und/oder unten zwei Wälzkörper vorgesehen sein, wie dies in Figur 5 dargestellt ist.FIG. 3 shows a first variant of guiding the carriage 16 on the guide rail 18. In each carriage 16, two rolling elements 20 are rotatably mounted. A rolling element 20 slides on an upper side or on an upper edge of the guide rail 18. The other rolling element 20 slides on an underside or on a lower edge of the guide rail 18. The arrangement shown in FIG. 3 is also due to the weight exerted by the food support One rolling element 20 above and one below the guide rail 18 is sufficient. The rolling elements 20 are arranged offset with respect to one another in the slide 16, so that by tilting the slide 16 the slide 16 can optionally be detached from the guide rail 18 and removed. The weight moment exerted by a food support, which stabilizes the slide 16, is indicated by an arrow. Alternatively, two rolling elements can be provided at the bottom and / or at the bottom, as shown in FIG. 5.
Figur 4 zeigt eine Schnittdarstellung eines Halteelements 13 des Halterungsteils 12 in einer Blickrichtung parallel zur Auszugsrichtung des Schlittens 16. Die Führungsschiene 18 ist fest in der Seitenwand 6 verankert und weist einen senkrecht stehenden Führungsabschnitt mit jeweils abgerundeten oberen und unteren Kanten auf, die gleichzeitig die Laufflächen für die Wälzkörper 20 bilden. Die Wälzkörper 20 sind im gezeigten Ausfüh- rungsbeispiel jeweils als einschalige Rotationshyperboloide ausgebildet, deren Laufflächen die Laufflächen der Führungsschiene 18 beidseitig umgreifen. An der der Seitenwand 6 abgewandten Seite des Schlittens 16 ist die Hakenschiene 14 starr befestigt.FIG. 4 shows a sectional illustration of a holding element 13 of the holding part 12 in a viewing direction parallel to the pull-out direction of the slide 16. The guide rail 18 is firmly anchored in the side wall 6 and has a vertical guide section with rounded upper and lower edges, which simultaneously act on the running surfaces form for the rolling elements 20. The rolling elements 20 are shown in the embodiment shown. Example, each formed as a single-shell rotational hyperboloids, the treads encompass the treads of the guide rail 18 on both sides. On the side of the carriage 16 facing away from the side wall 6, the hook rail 14 is rigidly fastened.
Die Figuren 5 und 6 zeigen in zwei Ansichten bzw. Teilschnitten eine alternative Ausführungsform des erfindungsgemäßen Halteelements 12, bei dem in jedem Schlitten 16 jeweils vier Wälzkörper 20 drehbar gelagert sind. Jeweils zwei voneinander beabstandete Wälzkörper 20 gleiten auf der oberen sowie auf der unteren Kante der Führungsschiene 18. Diese weist einen vorderen Anschlag 34 sowie einen hinteren Anschlag 36 auf, an denen jeweils der Schlitten 16 anstoßen kann. Die Anschläge 34, 36 definieren den maximalen Weg, den der Schlitten 16 auf der Führungsschiene 18 zurück legen kann. Die Führungsschiene 18 ist über mehrere Befestigungspunkte 38 an der Seitenwand verankert. Figur 5 verdeutlicht eine versetzte Montage der Hakenschiene 14 am Schlitten 16, so dass sie in der Entnahmeposition näher an den Frontrahmen der Ofenmuffel gerückt ist. Das Einhängen und Entnehmen der Gargutauflage kann dadurch ggf. erleichtert werden.FIGS. 5 and 6 show in two views or partial sections an alternative embodiment of the holding element 12 according to the invention, in which four roller bodies 20 are rotatably mounted in each slide 16. In each case two spaced-apart rolling elements 20 slide on the upper and on the lower edge of the guide rail 18. This has a front stop 34 and a rear stop 36, against which the slide 16 can abut. The stops 34, 36 define the maximum path that the carriage 16 can travel on the guide rail 18. The guide rail 18 is anchored to the side wall via a plurality of fastening points 38. Figure 5 illustrates an offset assembly of the hook rail 14 on the carriage 16 so that it is moved closer to the front frame of the furnace muffle in the removal position. This may make it easier to hang up and remove the food support.
Wie Figur 6 deutlich macht, weist der Schlitten 16 eine schalenförmige Kontur mit einseitiger Aufhängung der Wälzkörper 20 auf. An der geschlossenen Seite des Schlittens 16 ist die Hakenschiene 14 befestigt, während die offene Seite zur Seitenwand 6 der Ofenmuffel weist. Der Schlitten 16 umgreift die Führungsschiene 18 weitgehend, so dass insgesamt eine sehr kompakte und Platz sparende Einheit gebildet ist. Im Gegensatz zur ersten Variante gemäß den Figuren 3 und 4 sind die Wälzkörper in der zweiten Variante als symmetrische Doppelkegel mit jeweils stumpfen Stirnseiten ausgebildet, deren Mittel- kante in einer entsprechend grabenförmig ausgebildeten Laufbahn der Führungsschiene gleitet.As FIG. 6 makes clear, the slide 16 has a bowl-shaped contour with the rolling elements 20 suspended on one side. The hook rail 14 is fastened to the closed side of the slide 16, while the open side faces the side wall 6 of the furnace muffle. The carriage 16 largely engages around the guide rail 18, so that overall a very compact and space-saving unit is formed. In contrast to the first variant according to FIGS. 3 and 4, the rolling elements in the second variant are designed as symmetrical double cones, each with blunt end faces, the central edge of which slides in a correspondingly trench-shaped track of the guide rail.
Diese alternative Ausgestaltung des Schlittens und der Führungsschiene zeichnet sich durch besondere Kompaktheit aus. Das Halterungsteil 12 mit den zwei Halteelementen 13 kann auf diese Weise besonders schmal und platzsparend ausgeführt sein, so dass die Baubreite der Ofenmuffel gegenüber einer mit herkömmlichen Einschüben versehenen Ofenmuffel kaum vergrößert ist. Ggf. kann die auf die Seitenwände 6 der Ofenmuffel 2 aufgesetzte Führungsschiene auch in einer entsprechenden Vertiefung versenkt sein, so dass im Wesentlichen nur die Hakenschiene in geringem Abstand zur Seitenwand 6 der Ofenmuffel aus deren seitlichem Umriss herausragt. Auf diese Weise kann eine weitere Reduzierung der Baubreite der Ofenmuffel erreicht werden.This alternative design of the slide and the guide rail is characterized by particular compactness. The holding part 12 with the two holding elements 13 can be made particularly narrow and space-saving in this way, so that the overall width of the furnace muffle is hardly enlarged compared to a furnace muffle provided with conventional inserts. Possibly. The guide rail placed on the side walls 6 of the furnace muffle 2 can also be countersunk in a corresponding recess, so that essentially only the hook rail is at a short distance from the side wall 6 the oven muffle protrudes from the side outline. In this way, a further reduction in the overall width of the furnace muffle can be achieved.
Anhand der Figur 6 ist eine in Nuten 22 eingehängte Gargutauflage 24 verdeutlicht, die sich in einer mittleren Einlegeposition ungefähr auf Höhe der Führungsschiene 18 befindet.6 shows a food support 24 suspended in grooves 22, which is located in a middle insertion position approximately at the level of the guide rail 18.
Figur 7 zeigt in perspektivischer Ansicht eine bevorzugte Ausgestaltung des Halterungsteils 12, bei dem die beiden Hakenschienen 14 durch eine Verbindungsstrebe 26 mitein- ander verbunden sind. Auf diese Weise kann vermieden werden, dass eine der Hakenschienen 14 beim Einhängen der Gargutauflage versehentlich nach hinten geschoben wird.FIG. 7 shows a perspective view of a preferred embodiment of the holding part 12, in which the two hook rails 14 are connected to one another by a connecting strut 26. In this way, it can be avoided that one of the hook rails 14 is accidentally pushed backwards when the food support is hooked in.
Figur 8 zeigt eine mögliche Ausgestaltung einer Rastvorrichtung 27, die aus einer feder- belasteten Kugel 30 besteht, die in eine Vertiefung 32 der Führungsschiene 18 einrasten kann. Die Kugel 30 ist vorzugsweise im Schlitten gehaltert und kann in eine im vorderen Bereich der Führungsschiene 18 befindliche und damit eine Rastung in Entnahmeposition definierende Vertiefung 32 eingreifen. Ggf. kann zusätzlich eine weitere Vertiefung in einem hinteren Bereich der Führungsschiene 18 vorgesehen sein, die eine weitere Rastpo- sition in Garposition der Gargutauflage definiert. Die Rastpositionen korrespondieren vorzugsweise mit den entsprechenden Anschlägen des Schlittens (vgl. Figur 6), so dass in der Praxis der maximale Verschiebeweg des Halteelements ausgenutzt wird.FIG. 8 shows a possible embodiment of a locking device 27, which consists of a spring-loaded ball 30, which can snap into a recess 32 in the guide rail 18. The ball 30 is preferably held in the carriage and can engage in a recess 32 located in the front region of the guide rail 18 and thus defining a detent in the removal position. Possibly. For example, a further recess can be provided in a rear region of the guide rail 18, which defines a further latching position in the cooking position of the food support. The locking positions preferably correspond to the corresponding stops of the slide (see FIG. 6), so that in practice the maximum displacement of the holding element is used.
Soll der Backofen in einem Pyrolysemodus betrieben werden, kann die gezeigte Wälzla- gerung des Schlittens keine herkömmliche Fettschmierung aufweisen. Um den hohen Temperaturen von ca. 500 °C standhalten zu können, eignen sich insbesondere Wälzpaarungen aus Keramik bzw. mit einer Keramikbeschichtung. Eine solche Wälzpaarung bietet darüber hinaus den weiteren Vorteil, dass das Halterungsteil 12 von der Ofenmuffel elektrisch isoliert werden kann. Dies ermöglicht eine Mikrowellen-Tauglichkeit des Back- ofens, da durch die Isolierung des H alteelements keine F unken- u nd H ochspannungsüberschläge zu befürchten sind. Als Material für die Führungsschienen, die Schlitten sowie die Hakenschienen kommt bspw. Aluminium, Edelstahl oder Messing in F rage, d as a uf d er F ührungsschiene g gf. eine Keramikbeschichtung aufweisen kann. If the oven is to be operated in a pyrolysis mode, the roller bearing of the slide shown cannot have conventional grease lubrication. In order to withstand the high temperatures of approx. 500 ° C, roller pairs made of ceramic or with a ceramic coating are particularly suitable. Such a pair of rollers also has the further advantage that the holding part 12 can be electrically insulated from the furnace muffle. This enables the oven to be used in a microwave oven, since there is no risk of spark and high voltage flashovers due to the insulation of the holding element. The material for the guide rails, the slides and the hook rails comes in question, for example, aluminum, stainless steel or brass, which may have a ceramic coating on the guide rail.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
2 Ofenmuffel2 oven muffle
4 Frontrahmen4 front frames
5 Backofentür5 oven door
6 Seitenwand6 side wall
8 Bodenfläche8 floor space
10 Oberseite10 top
12 Halterungsteil12 bracket part
13 Halteelement13 holding element
14 Hakenschiene14 hook rail
16 Schlitten16 sledges
18 Führungsschiene18 guide rail
20 Wälzkörper20 rolling elements
22 Nut22 groove
24 Gargutauflage24 food support
26 Querstrebe26 cross strut
27 Rastvorrichtung27 locking device
28 Feder28 spring
30 Kugel30 bullet
32 Vertiefung32 deepening
34 vorderer Anschlag34 front stop
36 hinterer Anschlag36 rear stop
38 Befestigungspunkt 38 attachment point

Claims

Patentansprüche claims
1. Backofen mit einem in einer Ofenmuffel (2) horizontal geführten Halterungsteil1. Oven with a bracket part horizontally guided in an oven muffle (2)
(12) zur Aufnahme und Halterung einer Gargutauflage (24), das zwischen einer Garposition i n der Ofenmuffel (2) und einer zumindest teilweise vor dieser liegenden Entnahmeposition verschiebbar ist, d a d u rc h g e k e n n ze i c h n et , dass das Halterungsteil (12) zwei Halteelemente (13) aufweist, die an gegenüber liegenden Seitenwänden (6) und beabstandet zu einer Oberseite (10) bzw. einer Unterseite (8) der Ofenmuffel (2) angeordnet sind.(12) for receiving and holding a food support (24) which can be displaced between a cooking position in the oven muffle (2) and an at least partially located removal position, so that the holding part (12) has two holding elements ( 13) which are arranged on opposite side walls (6) and spaced apart from an upper side (10) or a lower side (8) of the furnace muffle (2).
2. Backofen nach Anspruch 1 , dadurch gekennzeichnet, dass das Halteelement2. Oven according to claim 1, characterized in that the holding element
(13) durch einen Schlitten (16) geführt ist.(13) is guided by a carriage (16).
3. Backofen nach Anspruch 2, dadurch gekennzeichnet, dass der verschiebbare Schlitten (16) an einer Seitenwand (6) der Ofenmuffel (2) jeweils in einem mittleren Höhenbereich angeordnet ist.3. Oven according to claim 2, characterized in that the displaceable slide (16) on a side wall (6) of the oven muffle (2) is arranged in each case in a central height range.
4. Backofen nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das Halteelement (13) eine Hakenschiene (14) umfasst, die am Schlitten (16) fixiert ist.4. Oven according to claim 2 or 3, characterized in that the holding element (13) comprises a hook rail (14) which is fixed to the carriage (16).
5. Backofen nach Anspruch 4, dadurch gekennzeichnet, dass die Hakenschienen (14) mittels einer Querverstrebung (26) miteinander gekoppelt sind.5. Oven according to claim 4, characterized in that the hook rails (14) are coupled to one another by means of a cross strut (26).
6. Backofen nach einem der Ansprüche 2 bis 5, gekennzeichnet durch eine Rast- position der Schlitten (16) zumindest in der Entnahmeposition.6. Baking oven according to one of claims 2 to 5, characterized by a latching position of the slide (16) at least in the removal position.
7. Backofen nach einem der Ansprüche 2 bis 6, gekennzeichnet durch einen wälzgelagerten Schlitten (16). 7. Oven according to one of claims 2 to 6, characterized by a roller-mounted carriage (16).
EP03747912.8A 2002-08-30 2003-08-19 Baking oven having a linear pull-out element Expired - Lifetime EP1537365B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10240146A DE10240146A1 (en) 2002-08-30 2002-08-30 Oven for baking with linear pull-out has holder part with two holding elements on opposite side walls
DE10240146 2002-08-30
PCT/EP2003/009188 WO2004025187A1 (en) 2002-08-30 2003-08-19 Baking oven having a linear pull-out element

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EP1537365A1 true EP1537365A1 (en) 2005-06-08
EP1537365B1 EP1537365B1 (en) 2012-03-07
EP1537365B2 EP1537365B2 (en) 2016-02-24

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EP (1) EP1537365B2 (en)
AT (1) ATE548610T1 (en)
AU (1) AU2003266997A1 (en)
BR (1) BR0313948A (en)
DE (1) DE10240146A1 (en)
ES (1) ES2381035T5 (en)
WO (1) WO2004025187A1 (en)

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Also Published As

Publication number Publication date
EP1537365B2 (en) 2016-02-24
DE10240146A1 (en) 2004-03-11
EP1537365B1 (en) 2012-03-07
US20050241495A1 (en) 2005-11-03
ES2381035T5 (en) 2016-05-06
BR0313948A (en) 2005-07-12
AU2003266997A1 (en) 2004-04-30
ES2381035T3 (en) 2012-05-22
ATE548610T1 (en) 2012-03-15
WO2004025187A1 (en) 2004-03-25

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