EP2329199B2 - An oven with cooking chamber - Google Patents

An oven with cooking chamber Download PDF

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Publication number
EP2329199B2
EP2329199B2 EP09782786.9A EP09782786A EP2329199B2 EP 2329199 B2 EP2329199 B2 EP 2329199B2 EP 09782786 A EP09782786 A EP 09782786A EP 2329199 B2 EP2329199 B2 EP 2329199B2
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EP
European Patent Office
Prior art keywords
walls
casing
cooking chamber
rear wall
curve
Prior art date
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Active
Application number
EP09782786.9A
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German (de)
French (fr)
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EP2329199B1 (en
EP2329199A1 (en
Inventor
Cemalettin Kalayci
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.)
Arcelik AS
Original Assignee
Arcelik AS
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Publication date
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Application filed by Arcelik AS filed Critical Arcelik AS
Priority to PL09782786T priority Critical patent/PL2329199T3/en
Publication of EP2329199A1 publication Critical patent/EP2329199A1/en
Publication of EP2329199B1 publication Critical patent/EP2329199B1/en
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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 oven realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a cooking chamber which is formed by cutting and joining the sheets from metal material and which has bottom, top, side and rear walls, an opening at the front side, which enables the foods that will be cooked to be disposed into the cooking chamber, and a door which provides the cooking chamber inner volume to be isolated from the outer environment by closing the opening.
  • the oven (1) comprises a U-shaped curve (101) which is oblique such that its orifice portion will face the opposite of the opening (7) and which is formed by bending the front edges of the walls (2, 3 and 4) towards themselves.
  • the curve (101) comprises a base (102) and a support means (103) which is formed by the portions that are bent towards the walls (2, 3 and 4) ( Figures 4 and 6 ).
  • the oven (1) of the present invention is produced according to the following steps:

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Electric Ovens (AREA)

Description

  • The present invention relates to an oven comprising a cooking chamber.
  • Ovens have a cooking chamber wherein the cooking process is performed. The walls of the cooking chamber are generally manufactured by shaping sheet metals. Then, these walls are joined with each other from their edges by the methods of riveting or welding. The joint points of the walls, being sharp and protruding, cause stain accumulation therein.
  • While cleaning the accumulated stain, the user feels uncomfortable with the joint edges that are rough.
  • In the oven mentioned in the state of the art Great Britain Patent Document No GB2329467 , it is described that by means of the side walls and the base, formed by bending a single piece sheet metal in U-shape, the material required for joining these components is saved.
  • In the oven mentioned in the state of the art Great Britain Patent Document No GB2355070 , the center portion of a single piece sheet metal is cut out and used as the rear wall, and the bezel, remaining after the center portion is cut out, is used as the front wall.
  • Another state of the art embodiment is explained in the German Patent Document No DE19705656 .
  • Document GB2107160 describes an oven comprising a cooking chamber having a top wall, a bottom wall, side walls, and a casing. The front edges of the walls and the front edges of the casing comprise corresponding bent portions that fit to each other in an interlocking manner to form a seam inside the cooking chamber.
  • Documents EP254500 and EP1655544 describe cooking ovens in which the walls are provided with flanges that are joined to each other.
  • Postpublished document EP2098787 discloses an oven in which the front edges of a cooking chamber are bent in a U-shape, wherein a frame is attached to the outside of said bent edges.
  • Document JP59119118A discloses the provision of a front plate of an oven with a first bent section and a second bent section that form a first curling margin. Second curling margins are formed on a body plate and top board. The joining of the front plate with the body section is performed by curling processing.
  • Document US4848311 discloses an oven in which flanges of a frame are immediately attached to the outer wall of a cooking chamber.
  • The aim of the present invention is the realization of an oven, the cooking chamber of which can be easily cleaned.
  • The oven realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a cooking chamber which is formed by cutting and joining the sheets from metal material and which has bottom, top, side and rear walls, an opening at the front side, which enables the foods that will be cooked to be disposed into the cooking chamber, and a door which provides the cooking chamber inner volume to be isolated from the outer environment by closing the opening.
  • The oven, furthermore, comprises a curve which is formed by bending the front edges of the bottom, top and side walls, joined such that an opening will remain in the middle of them, towards the outside of the walls, and a casing which enables the walls to be fixed by being disposed onto the curve.
  • Meanwhile, the walls are also fixed to the rear wall from their rear edges. The casing and the walls are joined at the outside of the cooking chamber inner volume, on the curves. Thus, the oil and vapor of the cooked foods do not smear the joint points during cooking.
  • By cutting and bending a single piece sheet, the rear wall is formed from its center portion and the casing is formed from the portion remaining around the rear wall. Thus, almost no waste material is generated and the whole sheet is made use of.
  • By means of the cooking chamber of the present invention, the cost of the oven decreases and the walls of the oven can be fixed to each other without the need of additional material.
  • The oven realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
    • Figure 1 - is the perspective view of an oven.
    • Figure 2 - is the front view of the cooking chamber of an embodiment of the present invention.
    • Figure 3 - is the exploded view of a cooking chamber.
    • Figure 4 - is the sideways view of a cooking chamber.
    • Figure 5 - is the view of detail A in Figure 4.
    • Figure 6 - is the view of detail B in Figure 4.
    • Figure 7 - is the view of the rear wall and casing, formed by shaping a bent sheet, before being cut, in an embodiment of the present invention.
    • Figure 8 - is the view of a cut sheet in an embodiment of the present invention.
    • Figure 9 - is the schematic view of the rear wall and casing, formed by shaping a sheet, before being cut.
    • Figure 10 - is the schematic view of the rear wall and casing, formed by shaping a sheet, before being cut.
    • Figure 11 - is the schematic view of the casing, by folding the edges of which a chamber support is formed.
    • Figure 12 - is the schematic view of the rear wall, the bottom wall and the casing.
    • Figure 13 - is the schematic view of the rear wall, the bottom wall and the casing with a gasket mounted thereon.
  • The elements illustrated in the figures are numbered as follows:
    • 1. Oven
    • 2. Bottom wall
    • 3. Top wall
    • 4. Side wall
    • 5. Rear wall
    • 6. Cooking chamber
    • 7. Opening
    • 8. Door
    • 9. Casing
    • 10. Step
    • 11. Chamber support
    • 12. Carrying means
    • 13. Gasket
    • 101. Curve
    • 102. Base
    • 103. Support means
  • An oven (1) comprises a cooking chamber (6) which has a bottom wall (2), a top wall (3), two side walls (4) and a rear wall (5) that are formed by cutting and bending the sheets (L) preferably from metal material, and which is formed by joining the walls (2, 3 and 4) and wherein foods to be cooked are disposed; an opening (7) through which the access to the cooking chamber (6) through between the front edges of the walls (2, 3 and 4) is provided, and a door (8) which provides the opening (7) to be closed and which is opened preferably by bending towards the front (Figures 1, 2 and 3).
  • The oven (1), furthermore, comprises
    • a curve (101) which is formed by bending the front edge of the walls (2, 3 and 4) towards the outside of the cooking chamber (6), and
    • a casing (9) which is mounted onto the curves (101) such that it will
    encircle the front edges of the walls (2, 3 and 4), and the line (H), wherein it joins with the curves (101), will remain outside the cooking chamber (6) (Figures 4 and 6).
  • A door (8), which is preferably of glass and which separates the cooking chamber (6) from the outer environment by being closed onto the casing (9), is located at the portion that is visible to the user from the front side of the oven (1). In the embodiment of the present invention, the door (8) is closed onto the curve (101) of the walls (2, 3 and 4) which are curved by extending to the outside of both the casing (9) and the cooking chamber (6). The casing (9) is seated onto the curve (101) of the walls (2, 3 and 4). Thus, the joint points of the casing (9) and the walls (2, 3 and 4) remain outside the cooking chamber (6) as much as the width of the curve (101) and stain does not reach there during cooking.
  • In the present invention, the oven (1) comprises a U-shaped curve (101) which is oblique such that its orifice portion will face the opposite of the opening (7) and which is formed by bending the front edges of the walls (2, 3 and 4) towards themselves. The curve (101) comprises a base (102) and a support means (103) which is formed by the portions that are bent towards the walls (2, 3 and 4) (Figures 4 and 6).
  • In the present invention, the oven (1) comprises an oblique U-shaped curve (101) which is bent such that its orifice portion will face the opposite direction of the opening (7).
  • By the walls (2, 3 and 4) being curved towards the outside of the cooking chamber (6) and joining with the casing (9) on their curve (101), the surfaces reached by the user are smooth. Thus, the user is not strained while cleaning the inside of the cooking chamber (6).
  • According to the present invention, the oven (1) comprises a step (10), the length of which is equal to the difference between the distance, which is between the opposite walls (2, 3 and 4) and the distance, which is between the opposite walls of the casing (9). The step (10) is closed by the curve (101).
  • In the present invention, the oven (1) comprises a chamber support (11) which is formed by bending the casing (9) inner edges towards the cooking chamber (6) such that they will form a horizontal surface and which is fixed by being seated onto the support means (103). The chamber support (11) and the support means (103) enables the casing (9) and the walls (2, 3 and 4), which are sheet-shaped and the frontals of the edges of which face each other vertically, to be joined with each other in the horizontal position, whereto they are brought by being bent. Furthermore, since the edges of the chamber support (11) and of the support means (103) extend towards the opposite direction of the opening (7), they enable the edges not to be visible from the outside of the cooking chamber (6) (Figure 7).
  • In an embodiment of the present invention, the oven (1) comprises a carrying means (12) which is formed by bending the rear wall (5) outer edges towards the cooking chamber (6) such that they will form a horizontal surface and whereon the rear edges of the walls (2, 3 and 4) are fixed when the walls (2, 3 and 4) and the rear wall (5) are joined. The edges of the rear wall (5), which is vertical to the walls (2, 3 and 4), are enabled to be joined with the carrying means (12) on the same horizontal plane they are brought to with the carrying means (12) by methods such as spot welding and riveting (Figures 4 and 5).
  • In an embodiment of the present invention, the oven (1) comprises a joint line (H) which forms the border whereat the chamber support (11) and the support means (103) are joined facing each other, and which remains outside the cooking chamber (6). The chamber support (11) and the support means (103) are fixed to each other along the joint line (H) by spot welding. Thus, the wall (2, 3 and 4) and the casing (9) join firmly (Figure 6).
  • According to the present invention, the chamber support (11) and the support means (103) are fixed to each other by spot welding. The chamber support (11) and the support means (103) are fixed to each other by being welded from the points which are determined by the producer and located on the chamber support (11) at intervals. Thus, the thermal bridges between the walls (2, 3 and 4) and the casing (9) are decreased.
  • In this embodiment, the oven (1), furthermore, comprises at least one gasket (13) which is seated between the curve (101) and the casing (9) such that it will prevent the joint line (H) from being visible from the outside. After the gasket (13) is mounted, the gasket (13), the walls (2, 3 and 4) and the casing (9) appear as a flat surface when viewed from the outside. The user cleans the oven (1) easily since there is no recess or protrusion at the joint points. Since the joint line (H), whereto the gasket (13) is mounted, remains outside the cooking chamber (6), the joint line (H) is not affected by the temperature increased during cooking (Figure 13).
  • By shaping a single sheet (L) by the deep drawing method and cutting the sheet (L) along a closed rectangular line, the rear wall (5) is formed from the portion remaining inside the line and the casing (9) is formed from the portion remaining outside the rear wall (5) (Figures 7 and 8). Thus, in order to form a rear wall (5) and a casing (9), a single sheet (L) is used instead of two different sheets (L) and thus, a large amount of waste material is prevented from being generated (Figures 9, 10, 11, 12 and 13).
  • The oven (1) of the present invention is produced according to the following steps:
    • shaping of the bottom wall (2), top wall (3) and side walls (4) in a mould,
    • curving of the front edges of the walls (2, 3 and 4) to form curves (101),
    • shaping of the rear wall (5) and the casing (9) from a single sheet (L) by the deep drawing method,
    • cutting of the sheet (L) along a closed rectangular line such that the portion remaining inside will form the rear wall (5) and the portion remaining outside will form the casing (9),
    • bending of the edges of the casing (9) such that a step (10) will remain between the casing (9) and the rear wall (5),
    • joining of the walls (2, 3 and 4) with the rear wall (5) and the casing (9).
  • By means of the oven (1) of the present invention, at the cooking chamber (6) front portions, whereto the user can reach, no joint protrusion is present. By means of the curves (101) and the casing (9) being joined outside the cooking chamber (6) such that their edges will face the inside of the body (G), the edges are not visible to the user. In the embodiment wherein gasket (13) is used, also the joint points are not visible at all, and dust and stain do not accumulate there.

Claims (2)

  1. An oven (1) comprising a cooking chamber (6) which has a bottom wall (2), a top wall (3), two side walls (4) and a rear wall (5) that are formed by cutting and bending the sheets (L) preferably from metal material, and which is formed by joining the walls (2, 3 and 4) with the rear wall (5) and wherein foods to be cooked are disposed; an opening (7) through which the access to the cooking chamber (6) through between the front edges of the walls (2, 3 and 4) is provided, and a door (8) which provides the opening (7) to be closed and which is opened preferably by bending towards the front, further comprising
    - a U-shaped curve (101) which is formed by bending the front edge of the walls (2, 3 and 4) towards the outside of the cooking chamber (6),
    - a casing (9) which is mounted onto the curve (101) such that it will encircle the front edge of the walls (2, 3 and 4), and the line (H), wherein it joins with the curve (101), will remain outside the cooking chamber (6),
    - the U-shaped curve (101) is oblique such that its orifice portion will face the opposite direction of the opening (7)
    - the U-shaped curve (101) is formed by bending the front edges of the walls (2, 3 and 4) towards themselves,
    - the U-shaped curve (101) comprises a base (102) and a support means (103) that is formed by the wall (2, 3 and 4) portions bent towards themselves,
    - a chamber support (11) is formed by bending the casing (9) inner edges towards the cooking chamber (6) such that they will form a horizontal surface and which is fixed by being seated onto the support means (103),
    - the joint line (H) which forms the border whereat the chamber support (11) and the support means (103) are joined facing each other, and which remains outside the cooking chamber (6),
    - at least one gasket (13) is disposed between the casing (9) and the curve (101),
    - a step (10), the length of which is equal to the difference between the distance, which is between the opposite walls (2, 3 and 4) and the distance, which is between the opposite walls of the casing (9), wherein the step (10) is closed by the curve (101),
    wherein the chamber support (11) and the support means (13) are fixed to each other by spot welding by being welded from the points located on the chamber support (11) at intervals.
  2. A production method which comprises the following steps in order to form the cooking chamber (6) of an oven (1) in Claim 1:
    - shaping of the bottom wall (2), top wall (3) and side walls (4) in a mould,
    - curving of the front edges of the walls (2, 3 and 4) to form curves (101),
    - shaping of the rear wall (5) and the casing (9) from a single sheet (L) by the deep drawing method,
    - cutting of the sheet (L) along a closed rectangular line such that the portion remaining inside will form the rear wall (5) and the portion remaining outside will form the casing (9),
    - bending of the edges of the casing (9) such that a step (10) will remain between the casing (9) and the rear wall (5),
    - joining of the walls (2, 3 and 4) with the rear wall (5) and casing (9).
EP09782786.9A 2008-09-12 2009-09-08 An oven with cooking chamber Active EP2329199B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09782786T PL2329199T3 (en) 2008-09-12 2009-09-08 An oven with cooking chamber

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200806941 2008-09-12
PCT/EP2009/061653 WO2010029088A1 (en) 2008-09-12 2009-09-08 An oven casing assembly

Publications (3)

Publication Number Publication Date
EP2329199A1 EP2329199A1 (en) 2011-06-08
EP2329199B1 EP2329199B1 (en) 2016-12-14
EP2329199B2 true EP2329199B2 (en) 2019-12-25

Family

ID=41528677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09782786.9A Active EP2329199B2 (en) 2008-09-12 2009-09-08 An oven with cooking chamber

Country Status (4)

Country Link
EP (1) EP2329199B2 (en)
ES (1) ES2617867T3 (en)
PL (1) PL2329199T3 (en)
WO (1) WO2010029088A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102379244B1 (en) * 2020-10-30 2022-03-28 린나이코리아 주식회사 Steam oven cabinet assembly
WO2022119510A1 (en) * 2020-12-02 2022-06-09 Femas Metal San. Ve Tic. A.S. Oven with side panel connection

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214571A (en) † 1978-01-16 1980-07-29 Chambers Corporation Removable oven panel and door sealing gasket
GB2201201A (en) † 1987-02-18 1988-08-24 Belling & Co Ltd Gasketed structure
DE3840344A1 (en) † 1988-11-30 1990-05-31 Bauknecht Hausgeraete Baking oven housing
EP0697568A2 (en) † 1995-09-13 1996-02-21 Electrolux AG Connection oven and oven frame
DE19705697A1 (en) † 1996-11-29 1998-06-04 Juno Kuechentech Electrolux Glass door for domestic oven
FR2759770A1 (en) † 1997-02-14 1998-08-21 Electrolux Juno Kuchentechnik HOUSEHOLD OVEN WITH SEALING FOR THE FRONT OPENING OF THE SUPPLY
DE10254899A1 (en) † 2002-11-25 2004-06-03 BSH Bosch und Siemens Hausgeräte GmbH A method for fixing a baking plate in an oven has partly U- section triangular brackets at the front sides attached by screws
WO2004113796A1 (en) † 2003-06-26 2004-12-29 BSH Bosch und Siemens Hausgeräte GmbH Heating device, in particular oven
DE102004039432A1 (en) † 2004-08-13 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Door seal for sealing gap between door and flange of cooking appliance has sealing cord fastened to flange on cooking appliance by fastening strip which comprises flat band with two parallel flat outer faces

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1184458A (en) * 1981-06-16 1985-03-26 Noboru Igarashi Construction of heating compartment for cooking apparatus
JPS59119118A (en) * 1982-12-27 1984-07-10 Enami Seiki:Kk Inner chamber of cooker
DE8702096U1 (en) * 1986-02-17 1987-03-26 Ulgor, S. Coop., Mondragon, Guipuzcoa Structural design for household ovens
GB8617773D0 (en) * 1986-07-21 1986-08-28 Thorn Emi Appliances Cooking apparatus
KR930004536B1 (en) * 1987-07-31 1993-05-27 마쯔시다덴기산교 가부시기가이샤 Heating box for a microwave oven
US4848311A (en) * 1988-03-11 1989-07-18 General Electric Company Method and apparatus for reducing side panel hot spots in a kitchen range
JP4263002B2 (en) * 2003-03-13 2009-05-13 パナソニック株式会社 Inner box for heating cooker and its assembly method
ITPD20040270A1 (en) * 2004-11-03 2005-02-03 Unox Spa PERFECT STRUCTURE OF MUFFLE
ES2340646B1 (en) * 2008-03-07 2011-04-12 Bsh Electrodomesticos España, S.A. COOKING APPARATUS

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214571A (en) † 1978-01-16 1980-07-29 Chambers Corporation Removable oven panel and door sealing gasket
GB2201201A (en) † 1987-02-18 1988-08-24 Belling & Co Ltd Gasketed structure
DE3840344A1 (en) † 1988-11-30 1990-05-31 Bauknecht Hausgeraete Baking oven housing
EP0697568A2 (en) † 1995-09-13 1996-02-21 Electrolux AG Connection oven and oven frame
DE19705697A1 (en) † 1996-11-29 1998-06-04 Juno Kuechentech Electrolux Glass door for domestic oven
FR2759770A1 (en) † 1997-02-14 1998-08-21 Electrolux Juno Kuchentechnik HOUSEHOLD OVEN WITH SEALING FOR THE FRONT OPENING OF THE SUPPLY
DE10254899A1 (en) † 2002-11-25 2004-06-03 BSH Bosch und Siemens Hausgeräte GmbH A method for fixing a baking plate in an oven has partly U- section triangular brackets at the front sides attached by screws
WO2004113796A1 (en) † 2003-06-26 2004-12-29 BSH Bosch und Siemens Hausgeräte GmbH Heating device, in particular oven
DE102004039432A1 (en) † 2004-08-13 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Door seal for sealing gap between door and flange of cooking appliance has sealing cord fastened to flange on cooking appliance by fastening strip which comprises flat band with two parallel flat outer faces

Also Published As

Publication number Publication date
EP2329199B1 (en) 2016-12-14
WO2010029088A1 (en) 2010-03-18
EP2329199A1 (en) 2011-06-08
ES2617867T3 (en) 2017-06-20
PL2329199T3 (en) 2017-06-30

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