EP2936000A2 - Oven comprising a muffle on which panels are mounted some panels - Google Patents

Oven comprising a muffle on which panels are mounted some panels

Info

Publication number
EP2936000A2
EP2936000A2 EP13843053.3A EP13843053A EP2936000A2 EP 2936000 A2 EP2936000 A2 EP 2936000A2 EP 13843053 A EP13843053 A EP 13843053A EP 2936000 A2 EP2936000 A2 EP 2936000A2
Authority
EP
European Patent Office
Prior art keywords
muffle
pair
side panels
oven
panels
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.)
Withdrawn
Application number
EP13843053.3A
Other languages
German (de)
French (fr)
Inventor
Fabio Gambardella
Matteo Scoponi
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.)
Whirlpool EMEA SpA
Original Assignee
Indesit Co SpA
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 Indesit Co SpA filed Critical Indesit Co SpA
Publication of EP2936000A2 publication Critical patent/EP2936000A2/en
Withdrawn legal-status Critical Current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
    • F24C15/08—Foundations or supports plates; Legs or pillars; Casings; Wheels

Definitions

  • the present invention refers to a cooking oven with a muffle.
  • a muffle (M) oven for cooking food comprises a substantially cubic or otherwise parallelepiped shaped body or alike, wherein is defined the cavity for cooking food frontally closed by a door, this last being usually hinged to the muffle with vertical or horizontal axis depending on the various solutions.
  • the muffle M Around the muffle M is then applied the insulating material to isolate it thermally and all other components that complete the oven, namely the conduits of the gas and / or electrical wirings, the ventilation fan (when provided), commands, various circuits and so on.
  • the oven's structure is then externally closed with external panels on side, on top, on bottom and on rear; fixing of these panels have not to interfere with the insulating material and with the other above mentioned components of the oven: therefore, it is currently known to utilize a bracket support S, which is then coupled to the side panels.
  • bracket support S which is then coupled to the side panels.
  • the support bracket S is typically fixed to the rear wall of the muffle M through fixing screws.
  • This kind of fixing has the drawback to concentrate in the area around the holes of the muffle M the weight of the muffle and the stresses that come from this (for example when the oven is moved). Therefore, the muffle M must be sufficiently robust so that will not be damaged.
  • a way to avoid this drawback consists in the implementation of a muffle M using a material of greater strength and /or a metal sheet of greater thickness than the one utilized in an oven solely composed of a muffle. In this way, however, the weight and/or the cost of the muffle M are increased.
  • the basic idea of the present invention is to provide an oven in which the side panels of the structure are fixed directly to the muffle, in order to make unnecessary the bracket or other similar objects.
  • fig. 1 illustrates a perspective view of an oven muffle according to the prior art
  • fig. 2 illustrates a front view of a muffle according to the invention
  • fig. 3 illustrates a top view of the muffle of Fig. 2;
  • fig. 4 illustrates a rear perspective view of the muffle shown in Figures 2 and 3;
  • fig. 5 illustrates a view of detail A of Fig. 4;
  • fig. 6 illustrates a view of detail B of Fig. 4.
  • an oven comprises a muffle 1 in which a cavity, or cooking chamber, is delimited by a pair of side walls 2,3, a rear wall 4, a bottom wall 5 and a top wall 6.
  • the walls can be realized according to any known way in the art, for example a piece molded, bended or other worked metal sheet.
  • the side walls 2, 3 and the rear 4 are in one piece, whereas the bottom 5 and the top wall 6 are fastened with the walls 2,3,4 by constraint means (i.e.: welds, rivets, etc.).
  • the oven also includes a pair of padding panels 7,8 which are positioned at the sides of the muffle 1, in order to advantageously allow the application of the insulating material around the muffle 1.
  • the side panels 7 and 8 are fixed to the muffle 1 through fastening means, better below described.
  • the upper wall 6 comprises a peripheral flange 41 which extends along its rear edge, and preferably also along the side ones; the flange 41 protrudes with respect to the rear wall 4 and, in correspondence of the rear corners, presents some folds 42 folded like an "L" .
  • Each one of the external panels 7, 8 has an inward folded rear edge, 71 and 81, so to advantageously facilitate the coupling between said panels 7, 8 and folds 42 of the top wall 6. Furthermore, the folded rear edge 71, 81 of the panels 7, 8 presents some deep-drawings that increase advantageously the rigidity.
  • each folded edge 71, 81 of the panels 7, 8 comprises holes 73, 83 that allow the coupling of the respective lateral panel 7,8 with the muffle 1.
  • the flange 41 comprises at least two folds 42, positioned in the near of the ends of the rear wall 4.
  • Each fold 42 has folded form preferably as a "L" and includes at least one hole 43 which is aligned with the hole 73, 83 when the side panel 7,8 is coupled with the muffle 1 , in order to allow the use of the fixing means , such as screws, bolts, rivets or other, to fasten stably the coupling between the panel 7,8 and the muffle 1.
  • the fixing means such as screws, bolts, rivets or other
  • a first variation (not illustrated in the attached figures) comprises some folded folds positioned on the side walls 2 and 3 of the muffle 1 , wherein said folds are coupled on the side panels 7,8.
  • a second variation (not illustrated in the attached figures) comprises some side panels, in which each of them comprises a further folded edge, positioned in the front part of said panel, which is coupled with a reinforcement rib positioned in the front part of the muffle 1, in order to increase its stability.
  • a third variation comprises a reinforcing ilangc that runs along the edge of the lower walk so as in (he upper wall, so that the side panels may advantageously be coupled with the reinforcement wall preferably along their entire depth, in order to belter even up (he load on the panel,

Landscapes

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

Abstract

The invention relates to an oven comprising a muffle (1) with an external structure, in which the side panels (7,8) are fastened to a flange (41) protruding from the muffle (1). Advantageously, the flange is located on the upper (6) or the bottom wall (5) of the muffle and, at the corners, presents the folds (42) which facilitate the fixing of the folded edges to the side panels. In this way the panels are fastened directly to the muffle, avoiding fixing parts such as brackets and the like.

Description

OVEN COMPRISING A MUFFLE ON WHICH PANELS ARE MOUNTED SOME PANELS
DESCRIPTION
The present invention refers to a cooking oven with a muffle.
As known, the structure of a muffle (M) oven for cooking food comprises a substantially cubic or otherwise parallelepiped shaped body or alike, wherein is defined the cavity for cooking food frontally closed by a door, this last being usually hinged to the muffle with vertical or horizontal axis depending on the various solutions.
Around the muffle M is then applied the insulating material to isolate it thermally and all other components that complete the oven, namely the conduits of the gas and / or electrical wirings, the ventilation fan (when provided), commands, various circuits and so on.
The oven's structure is then externally closed with external panels on side, on top, on bottom and on rear; fixing of these panels have not to interfere with the insulating material and with the other above mentioned components of the oven: therefore, it is currently known to utilize a bracket support S, which is then coupled to the side panels. These side panels perform in addition of the said closure function also the structural function to keep the muffle raised between them.
The support bracket S is typically fixed to the rear wall of the muffle M through fixing screws. This kind of fixing has the drawback to concentrate in the area around the holes of the muffle M the weight of the muffle and the stresses that come from this (for example when the oven is moved). Therefore, the muffle M must be sufficiently robust so that will not be damaged. A way to avoid this drawback consists in the implementation of a muffle M using a material of greater strength and /or a metal sheet of greater thickness than the one utilized in an oven solely composed of a muffle. In this way, however, the weight and/or the cost of the muffle M are increased.
It 'is an object of the present invention to solve these drawbacks; in other words, it provides an oven with operating and structural characteristics such as to allow to fix the external panels without use of brackets or other similar elements, which make inevitably more heavy the oven structure and make more problematic the assembly operations.
The basic idea of the present invention is to provide an oven in which the side panels of the structure are fixed directly to the muffle, in order to make unnecessary the bracket or other similar objects.
The present invention's characteristics are specific object of the attached claims. These features and further advantages of the present invention will become more clear from the description of an embodiment shown in the appended drawings, provided for purely exemplary and not limiting purpose, in which:
fig. 1 illustrates a perspective view of an oven muffle according to the prior art;
fig. 2 illustrates a front view of a muffle according to the invention;
fig. 3 illustrates a top view of the muffle of Fig. 2;
fig. 4 illustrates a rear perspective view of the muffle shown in Figures 2 and 3;
fig. 5 illustrates a view of detail A of Fig. 4;
fig. 6 illustrates a view of detail B of Fig. 4.
With reference to Figs. 2, 3 and 4, an oven, according to the invention, comprises a muffle 1 in which a cavity, or cooking chamber, is delimited by a pair of side walls 2,3, a rear wall 4, a bottom wall 5 and a top wall 6.
The walls can be realized according to any known way in the art, for example a piece molded, bended or other worked metal sheet.
However, according with a preferred embodiment, the side walls 2, 3 and the rear 4 are in one piece, whereas the bottom 5 and the top wall 6 are fastened with the walls 2,3,4 by constraint means (i.e.: welds, rivets, etc.).
The oven also includes a pair of padding panels 7,8 which are positioned at the sides of the muffle 1, in order to advantageously allow the application of the insulating material around the muffle 1.
The side panels 7 and 8 are fixed to the muffle 1 through fastening means, better below described.
The upper wall 6 comprises a peripheral flange 41 which extends along its rear edge, and preferably also along the side ones; the flange 41 protrudes with respect to the rear wall 4 and, in correspondence of the rear corners, presents some folds 42 folded like an "L" . Each one of the external panels 7, 8 has an inward folded rear edge, 71 and 81, so to advantageously facilitate the coupling between said panels 7, 8 and folds 42 of the top wall 6. Furthermore, the folded rear edge 71, 81 of the panels 7, 8 presents some deep-drawings that increase advantageously the rigidity.
As better seen in Figures 5 and 6, each folded edge 71, 81 of the panels 7, 8 comprises holes 73, 83 that allow the coupling of the respective lateral panel 7,8 with the muffle 1.
Consequently, in order to make efficient the coupling between the side panels 7,8 and the muffle 1, the flange 41 comprises at least two folds 42, positioned in the near of the ends of the rear wall 4.
Each fold 42 has folded form preferably as a "L" and includes at least one hole 43 which is aligned with the hole 73, 83 when the side panel 7,8 is coupled with the muffle 1 , in order to allow the use of the fixing means , such as screws, bolts, rivets or other, to fasten stably the coupling between the panel 7,8 and the muffle 1.
Of course It is possible for the skilled person , to choose the fastening means best suited to satisfy the requirements of the application.
Several variations are obviously possible to the example until now described.
In the first instance it should be noted, that what exposed above, in relation to the upper wall 6, can also be extended to the lower wall 5; it follows, therefore, that it may be possible to have ovens in which the folds 42 are present on respective peripheral flanges 41 associated with both walls: top 6 and bottom 5, or ovens in which only the lower wall 5 is equipped with such features.
Other possible variations, hereinafter, for sake of brevity, will be highlighted only the parts different from this and subsequent variations with respect to the main embodiment above described .
A first variation (not illustrated in the attached figures) comprises some folded folds positioned on the side walls 2 and 3 of the muffle 1 , wherein said folds are coupled on the side panels 7,8.
A second variation (not illustrated in the attached figures) comprises some side panels, in which each of them comprises a further folded edge, positioned in the front part of said panel, which is coupled with a reinforcement rib positioned in the front part of the muffle 1, in order to increase its stability. W
4
In the end, a third variation comprises a reinforcing ilangc that runs along the edge of the lower walk so as in (he upper wall, so that the side panels may advantageously be coupled with the reinforcement wall preferably along their entire depth, in order to belter even up (he load on the panel,
there are, obviously, further possible additional variations 10 the so far described example . that fall, however, within the scope of the following claims.

Claims

1, Oven for cooking food, comprising:
a muffle (l)u herein (h r is provided a cooking chamber suiroimdod by a plurality of wails (2-6) ((.).
a pair of side panels (7.8) applied outside the mu fle ( I ).
characterized in t at
the muflle (!) comprises at least one pair of lO.kb(4'2) projecting oulsidc thereof, to vvhich the side panels (7.<S) are fastened,
2, Oven according to claim 1. wherein ihc muffle has a substantially parallelepiped shape and said at least one pair of folds (42) extends from one of ihc wails, in conned ion with the corners of the muffle.
3, Oven according to claims 1 or 2„ wherein said at least one pair of folds extends from a flange( 1 ) projecting along the edge of a wall (6)ol:'the muffle.
4, Oven according to claim 3. wherein said side panels (7, )comprise each a folded edge<7l.Sl )with vvhich a respective part of said projectin pair of folds (42) engage for fastening the panel to the muffle.
5, Oven according to claim 4, wherein said respective pari of said pair of fo!ds(42) comprises at least one first hole (4!). and wherein said side panels (7.8) comprise respective second holes (73.83). and where the fastening of said side panels (7.S) to the muffle (I ) occurs by fastening means that engage respective firsl(43) and second holes they are aligned with each other.
6'. Oven according to any of the preceding claims, wherein said pair of folds (42) is arranged on an upper wall ( ) andorlower wall (5) of the mu fle ( 1 ).
7, Oven according to claim 6. wherein the upper wall (6) of the muffle has a folded edge connected to the rear wall (4) at which the flangc(4 I ) extends.
EP13843053.3A 2012-12-21 2013-12-20 Oven comprising a muffle on which panels are mounted some panels Withdrawn EP2936000A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001136A ITTO20121136A1 (en) 2012-12-21 2012-12-21 OVEN INCLUDING A MUFFLE ON WHICH PANELS ARE FIXED
PCT/IB2013/061203 WO2014097253A2 (en) 2012-12-21 2013-12-20 Oven comprising a muffle on which panels are mounted some panels

Publications (1)

Publication Number Publication Date
EP2936000A2 true EP2936000A2 (en) 2015-10-28

Family

ID=47722433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13843053.3A Withdrawn EP2936000A2 (en) 2012-12-21 2013-12-20 Oven comprising a muffle on which panels are mounted some panels

Country Status (3)

Country Link
EP (1) EP2936000A2 (en)
IT (1) ITTO20121136A1 (en)
WO (1) WO2014097253A2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109726A (en) * 1982-12-14 1984-06-25 Matsushita Electric Ind Co Ltd heating cooking device
ES2215425B1 (en) * 2001-02-15 2005-09-16 Lackey, S.A. PERFECTED OVEN BODY.
DE10314589B4 (en) * 2003-03-31 2021-06-24 BSH Hausgeräte GmbH Cooking appliance
DE202004013917U1 (en) * 2004-09-07 2004-10-28 BSH Bosch und Siemens Hausgeräte GmbH cooking appliance muffle
DE102005036815C5 (en) * 2005-08-04 2024-03-14 BSH Hausgeräte GmbH oven

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014097253A2 *

Also Published As

Publication number Publication date
WO2014097253A2 (en) 2014-06-26
WO2014097253A3 (en) 2014-08-21
ITTO20121136A1 (en) 2014-06-22

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