US20060180141A1 - Cooking device door - Google Patents

Cooking device door Download PDF

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Publication number
US20060180141A1
US20060180141A1 US10/413,018 US41301803A US2006180141A1 US 20060180141 A1 US20060180141 A1 US 20060180141A1 US 41301803 A US41301803 A US 41301803A US 2006180141 A1 US2006180141 A1 US 2006180141A1
Authority
US
United States
Prior art keywords
cooking
viewing window
cooking device
recess
area
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.)
Abandoned
Application number
US10/413,018
Other languages
English (en)
Inventor
Wolfgang Schnell
Michael Wagner
Rainer Lebacher
Klemens Roch
Christine Thaller
Gerd Wilsdorf
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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERATE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERATE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WILSDORF, GERD, THALLER, CHRISTINE, SCHNELL, WOLFGANG, ROCH, KLEMENS, LEBACHER, RAINER, WAGNER, MICHAEL
Publication of US20060180141A1 publication Critical patent/US20060180141A1/en
Abandoned legal-status Critical Current

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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
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/04—Doors specially adapted for stoves or ranges with transparent panels

Definitions

  • the invention relates to a cooking device door according to the preamble of claim 1 .
  • Cooking devices generally have a cooking area located in a housing which can be closed using a cooking device door.
  • DE 196 38 241 A1 discloses a cooking device and specifically a baking oven with a genre-forming cooking device door having a viewing window, made of glass ceramic for example, on the side oriented in the direction of the cooking area.
  • the viewing window completely covers an opening of the cooking area and forms a contact surface with a contact flange or extends beyond a seal.
  • Such viewing windows are also called full-surface viewing windows.
  • a metal frame encompassing the viewing window can be dispensed with and dirty edges caused thereby on the inside of the viewing window facing the cooking area can be avoided. In addition, a large field of view can be achieved.
  • cooking devices In order to reduce the transverse heat conduction in the area of the contact surface, cooking devices are known wherein the housing of the cooking device is heated by additional heating elements in the area of the contact surface of the cooking device door.
  • Another disadvantage is that full surface viewing windows according to the prior art are made of high-quality special glasses, e.g. glass ceramic in order to avoid fracture of the glass as a result of high thermal stresses during pyrolytic operation.
  • the object of the invention is to further develop a generic cooking device door and specifically an advantageous thermal insulation should be achieved with a design that is both simple and space saving.
  • the invention relates to a cooking device door which has a viewing window on the side facing towards a cooking area which is located in a housing of a cooking device, said viewing window completely covering an opening of the cooking area and forming a contact surface with a contact flange.
  • the viewing window has a recess oriented in the direction of the cooking area, at least in one area.
  • Advantageous thermal insulation in the inner hot area can be achieved by means of an enlarged insulating space or window distance in an overall especially space-saving design. Loss of heat via the cooking device door can be reduced and energy can be saved.
  • the cooking device door according to the invention can also be used especially advantageously in cooking devices with a thermal self-cleaning unit.
  • the recess oriented in the direction of the cooking area can be heated more strongly and an advantageous cleaning result can be achieved.
  • a temperature gradient and associated thermal stresses can be reduced in the area of the recess.
  • a spring effect can be achieved by sloping flanks by which means stresses in the glass can be equalised.
  • economical materials such as especially borosilicate glass, soda lime glass etc.
  • glass ceramic could also be used with the loss of the cost advantage.
  • the viewing window especially advantageously has only one recess extending over a major part of the opening of the cooking area.
  • the recess advantageously has a distance of less than 4 mm at the side and at the bottom, especially in the case of a cooking device door pivoted about a lower axis, a distance of less than 6 mm from the contact flange. An extremely small external area excluded from a pyrolysis process can be achieved.
  • a labyrinth effect can be achieved and specifically with regard to dirt constituents and with regard to heat or hot gases.
  • the outer cooler area can be shielded from dirt constituents and hot gases whereby contamination of the outer area can be reduced and burning of dirt constituents in the outer area can be avoided by a high temperature but not sufficient for a pyrolysis process.
  • low temperatures can be achieved in the area of the contact flange or in the area of a seal whereby economical sealing materials can be used, such as especially silicone etc.
  • the solution according to the invention can also be used for sliding oven doors with trays attached, wherein the recess should be located in the transverse direction within contact surfaces of hook rails.
  • the recess advantageously has a depth between 10 and 35 mm wherein good insulation can be achieved in this area with an acceptable space requirement.
  • especially advantageous insulation can be achieved with a depth of 35 mm and the insulation shows merely an insignificant improvement from a depth of 35 mm.
  • the recess advantageously possesses flanks with an angle between 90° and 55°. An especially effective labyrinth effect and spring effect can be achieved with a steep angle.
  • the viewing window is pre-stressed and especially by means of a thermal or chemical process advantageously with a compressive stress at its surface whereby the strength of the viewing window can be increased.
  • the pre-stress and an associated high strength can always be maintained especially with regard to the heat by means of the attainable labyrinth effect.
  • the recess can be completely arched or it can advantageously have at least one flat area whereby this can be produced especially simply and economically without the view through the viewing window being affected thereby.
  • the second viewing window can advantageously be designed with a recess oriented in the direction away from the cooking area.
  • the solution according to the invention can be used in numerous cooking devices which appear logical to the person skilled in the art, but especially in cooking devices with a thermal self-cleaning unit, such as especially domestic baking ovens.
  • FIG. 1 is a schematic front view of a domestic baking oven
  • FIG. 2 is a view of a baking oven door of a domestic baking oven from inside
  • FIG. 3 is a schematic view of a section along the line III-III in FIG. 1 and
  • Figure is a schematic view of a section along the line TV-TV in FIG. 1 .
  • FIG. 1 shows a domestic baking oven which has a cooking area 11 in a housing 10 .
  • the cooking area 11 is bounded by a muffle 28 and has an opening 13 which is closed with a baking oven door ( FIGS. 3 and 4 ).
  • the baking oven door On its side facing towards the cooking area 11 the baking oven door has a viewing window 12 which completely covers the opening 13 of the cooking area 11 and forms a contact surface 27 with a contact flange 16 of the muffle 28 and specifically with a silicone seal 29 affixed to the contact flange 16 .
  • the contact surface 27 is shown by a dashed line in FIGS. 1 and 2 .
  • the viewing window 12 can be cleaned by means of an inherently known thermal self-cleaning unit or pyrolytic unit located in the housing 10 of the domestic baking oven.
  • the viewing window 12 is constructed as bowl-shaped and has a recess 14 oriented in the direction of the cooking area 11 , which extends over a major part of the opening 13 of the cooking area 11 and has a distance 15 of 2 mm at the side, a distance 17 of 2 mm at the bottom and a distance 18 of 4 mm at the top from the contact flange 16 .
  • the recess 14 has a depth 19 of 30 mm and lateral flanks 21 having an angle 23 of 70° and flanks 20 at its top and bottom having an angle 22 of 80°.
  • the recess 14 After its flanks 20 , 21 the recess 14 has a flat area 24 which forms a major part of the recess 14 .
  • the viewing window 12 can additionally have a heat-reflecting coating and/or suitable printing which specifically impedes the transparency of the window.
  • the recess 14 is moulded onto the viewing window 12 .
  • the viewing window 12 is placed on a plate having an indentation corresponding to the recess and is heated in its flank area by means of heat sources until a flowable state is established.
  • the area forming the recess 14 is then sucked into the indentation of the plate by means of vacuum.
  • the viewing window 12 is made of borosilicate glass and is thermally pre-stressed at its surface by means of compressive stresses.
  • the baking oven door has two further viewing windows 25 , 30 and specifically a central viewing window 25 and an outer viewing window 30 facing away from the cooking area 11 .
  • the viewing windows 12 , 25 , 30 are held together by means of a support not shown in detail and are interconnected in an almost airtight fashion by means of plastic seals 31 , 32 .
  • the central viewing window 25 has a recess 26 oriented in the direction away from the cooking area 11 , having approximately the same height and width as the recess 14 .
  • an advantageous insulating space 33 is formed between the viewing disks 12 , 25 .
  • the central viewing disk can alternatively also be constructed as completely flat or it can be omitted if the temperature requirements are reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Cookers (AREA)
  • Vending Machines For Individual Products (AREA)
  • Special Wing (AREA)
  • Baking, Grill, Roasting (AREA)
US10/413,018 2000-10-12 2003-04-14 Cooking device door Abandoned US20060180141A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10050609.7 2000-10-12
DE10050609A DE10050609A1 (de) 2000-10-12 2000-10-12 Gargerätetür

Publications (1)

Publication Number Publication Date
US20060180141A1 true US20060180141A1 (en) 2006-08-17

Family

ID=7659562

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/413,018 Abandoned US20060180141A1 (en) 2000-10-12 2003-04-14 Cooking device door

Country Status (7)

Country Link
US (1) US20060180141A1 (de)
EP (1) EP1328762B1 (de)
AT (1) ATE363632T1 (de)
AU (1) AU2002221652A1 (de)
DE (2) DE10050609A1 (de)
ES (1) ES2286155T3 (de)
WO (1) WO2002031410A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060115654A1 (en) * 2004-11-29 2006-06-01 Guardian Industries Corp Coated article with color suppression coating including flame pyrolysis deposited layer(s)
WO2011068888A1 (en) * 2009-12-01 2011-06-09 Schlumberger Technology Corp. Pre-stressed gamma densitometer window and method of fabrication
US20150047624A1 (en) * 2012-05-03 2015-02-19 Electrolux Home Products Corporation N.V. Arrangement of glass panels for a heat insulated oven door for a cooking oven
US20170016626A1 (en) * 2014-04-03 2017-01-19 Indesit Company S.P.A. Cooking appliance comprising thermochromic elements for providing an indication about the temperature

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10149085B4 (de) * 2001-10-05 2005-09-22 Schott Ag Backofentür
DE10239180A1 (de) 2002-08-21 2004-03-04 BSH Bosch und Siemens Hausgeräte GmbH Garraumtür eines Garofens mit Pyrolysefunktion
DE10304281B4 (de) * 2003-02-03 2019-05-09 BSH Hausgeräte GmbH Backofentür
DE102005040260A1 (de) * 2005-08-24 2007-03-01 Miele & Cie. Kg Backofentür mit einer in einem Rahmen eingefassten bombierten Glasscheibe

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US99339A (en) * 1870-02-01 Benjamin nott
US248808A (en) * 1881-10-25 Island
US1009814A (en) * 1911-01-21 1911-11-28 Oswald Wegner Stove door or window.
US1393235A (en) * 1919-05-10 1921-10-11 Mitrovich Adolph Glass
US1519057A (en) * 1923-06-29 1924-12-09 Roberts & Mander Stove Company Oven door
US1669604A (en) * 1926-07-17 1928-05-15 Moore Brothers Co Hinged closure
US1700177A (en) * 1927-12-05 1929-01-29 Standard Electric Stove Compan Oven front
US2172469A (en) * 1939-04-28 1939-09-12 Grigas Anthony Transparent stove lid
US2325773A (en) * 1940-07-18 1943-08-03 Roper Corp Geo D Oven observation window construction
US2341806A (en) * 1941-05-05 1944-02-15 Coleman Lamp & Stove Co Door for floor furnaces and like heating appliances
US2394176A (en) * 1944-06-14 1946-02-05 Florence Stove Co Oven door construction
US2604886A (en) * 1949-04-12 1952-07-29 Philco Corp Insulated door
US3191240A (en) * 1961-04-20 1965-06-29 Slaman Albert Multi-pane window panels
US4163444A (en) * 1977-01-06 1979-08-07 Les Industries Bfg Limitee Door for pyrolytic range
US4253286A (en) * 1978-10-26 1981-03-03 Katona Joseph W Clip-aire oven door window
US4629084A (en) * 1981-12-15 1986-12-16 Franzjosef Hackelsberger Closure for canning glass container with glass cover
US4638788A (en) * 1983-01-17 1987-01-27 Eurofours Device for mounting a glass pane on an oven door
US20040232133A1 (en) * 2001-09-07 2004-11-25 Bsh Bosch Und Siemens Hausgerate Gmbh Cooking appliances, cooking appliance door and method for producing a door pane for the cooking appliance door

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH633413A5 (en) * 1978-11-08 1982-12-15 Prometheus Ag Fabrik Elektrisc Oven door with inspection window
FR2670563B1 (fr) * 1990-12-14 1996-04-05 Europ Equip Menager Porte pour four de cuisson a usage domestique.
DE19638241A1 (de) 1996-09-19 1998-03-26 Miele & Cie Backofen mit einer Einrichtung zur pyrolytischen Selbstreinigung
DE19705120A1 (de) * 1997-02-11 1998-08-13 Gaggenau Hausgeraete Gmbh Backofentür
DE19906901A1 (de) * 1999-02-19 2000-08-24 Kueppersbusch Hausgeraete Ag Backofentür mit einer Glasscheibe

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US99339A (en) * 1870-02-01 Benjamin nott
US248808A (en) * 1881-10-25 Island
US1009814A (en) * 1911-01-21 1911-11-28 Oswald Wegner Stove door or window.
US1393235A (en) * 1919-05-10 1921-10-11 Mitrovich Adolph Glass
US1519057A (en) * 1923-06-29 1924-12-09 Roberts & Mander Stove Company Oven door
US1669604A (en) * 1926-07-17 1928-05-15 Moore Brothers Co Hinged closure
US1700177A (en) * 1927-12-05 1929-01-29 Standard Electric Stove Compan Oven front
US2172469A (en) * 1939-04-28 1939-09-12 Grigas Anthony Transparent stove lid
US2325773A (en) * 1940-07-18 1943-08-03 Roper Corp Geo D Oven observation window construction
US2341806A (en) * 1941-05-05 1944-02-15 Coleman Lamp & Stove Co Door for floor furnaces and like heating appliances
US2394176A (en) * 1944-06-14 1946-02-05 Florence Stove Co Oven door construction
US2604886A (en) * 1949-04-12 1952-07-29 Philco Corp Insulated door
US3191240A (en) * 1961-04-20 1965-06-29 Slaman Albert Multi-pane window panels
US4163444A (en) * 1977-01-06 1979-08-07 Les Industries Bfg Limitee Door for pyrolytic range
US4253286A (en) * 1978-10-26 1981-03-03 Katona Joseph W Clip-aire oven door window
US4629084A (en) * 1981-12-15 1986-12-16 Franzjosef Hackelsberger Closure for canning glass container with glass cover
US4638788A (en) * 1983-01-17 1987-01-27 Eurofours Device for mounting a glass pane on an oven door
US20040232133A1 (en) * 2001-09-07 2004-11-25 Bsh Bosch Und Siemens Hausgerate Gmbh Cooking appliances, cooking appliance door and method for producing a door pane for the cooking appliance door

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060115654A1 (en) * 2004-11-29 2006-06-01 Guardian Industries Corp Coated article with color suppression coating including flame pyrolysis deposited layer(s)
US7597938B2 (en) * 2004-11-29 2009-10-06 Guardian Industries Corp. Method of making coated article with color suppression coating including flame pyrolysis deposited layer(s)
WO2011068888A1 (en) * 2009-12-01 2011-06-09 Schlumberger Technology Corp. Pre-stressed gamma densitometer window and method of fabrication
US9455483B2 (en) 2009-12-01 2016-09-27 Schlumberger Technology Corporation Pre-stressed gamma densitometer window and method of fabrication
US9791389B2 (en) 2009-12-01 2017-10-17 Schlumberger Technology Corporation Pre-stressed gamma densitometer window and method of fabrication
US20150047624A1 (en) * 2012-05-03 2015-02-19 Electrolux Home Products Corporation N.V. Arrangement of glass panels for a heat insulated oven door for a cooking oven
US10274203B2 (en) * 2012-05-03 2019-04-30 Electrolux Home Products Corporation N.V. Arrangement of glass panels for a heat insulated oven door for a cooking oven
US20170016626A1 (en) * 2014-04-03 2017-01-19 Indesit Company S.P.A. Cooking appliance comprising thermochromic elements for providing an indication about the temperature

Also Published As

Publication number Publication date
AU2002221652A1 (en) 2002-04-22
DE50112573D1 (de) 2007-07-12
EP1328762A1 (de) 2003-07-23
DE10050609A1 (de) 2002-04-18
WO2002031410A1 (de) 2002-04-18
ATE363632T1 (de) 2007-06-15
EP1328762B1 (de) 2007-05-30
ES2286155T3 (es) 2007-12-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BSH BOSCH UND SIEMENS HAUSGERATE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHNELL, WOLFGANG;WAGNER, MICHAEL;LEBACHER, RAINER;AND OTHERS;REEL/FRAME:014648/0855;SIGNING DATES FROM 20030630 TO 20031009

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION