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WO1999024759A2 - Porte de regard pour appareil a temperature interieure elevee - Google Patents

Porte de regard pour appareil a temperature interieure elevee Download PDF

Info

Publication number
WO1999024759A2
WO1999024759A2 PCT/EP1998/006871 EP9806871W WO9924759A2 WO 1999024759 A2 WO1999024759 A2 WO 1999024759A2 EP 9806871 W EP9806871 W EP 9806871W WO 9924759 A2 WO9924759 A2 WO 9924759A2
Authority
WO
WIPO (PCT)
Prior art keywords
frame
pane
door according
glazed door
panes
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.)
Ceased
Application number
PCT/EP1998/006871
Other languages
German (de)
English (en)
Other versions
WO1999024759A3 (fr
Inventor
Kurt Leutner
Sabine Melson
Roland Leroux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schott AG
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Schott Glaswerke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Zeiss AG, Schott Glaswerke AG filed Critical Carl Zeiss AG
Publication of WO1999024759A2 publication Critical patent/WO1999024759A2/fr
Publication of WO1999024759A3 publication Critical patent/WO1999024759A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/08—Parts thereof
    • F26B25/12—Walls or sides; Doors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/10—Drying cabinets or drying chambers having heating or ventilating means
    • 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 glazed door for a device with an increased interior temperature, in particular for a domestic oven or drying cabinet, with an arrangement of at least two panes of glass, glass ceramic or a corresponding transparent and temperature-resistant material held by a common frame.
  • the invention also relates to the device having the glazed door with an increased interior temperature.
  • doors of this type are common; they are usually arranged at the front openings of ovens or the like.
  • the following description is given for domestic ovens, although the invention can also be used for any other device which has a glazed door which separates a temperature-increased interior from the outside environment and which makes it possible to look into this room at a higher temperature, for example drying ovens.
  • multi-pane arrangements consisting of two or more panes are generally used. It is also known to provide one or more of these panes with a coating that either reflects infrared radiation or reduces the emission of infrared radiation.
  • the inner window and possibly additional windows and the front window are attached to the door panel. Since the door panel is in direct contact with the baking chamber and is therefore made of a highly temperature-resistant but also good heat-conducting material (metal), the viewing panels are heated, among other things, by heat conduction.
  • the attachment of an additional (third) viewing window means in the known furnace ichtturen a significant deviation from the manufacturing process of a two-pane door, since this requires a change in construction, in which additional metal parts are required to fix the further pane
  • Oven openings have a seal all around the edge, usually a strip of silicone, for example. When the door is closed, this seal closes with the door panel
  • the viewing door consists of a frame and an arrangement of at least two panes of glass, glass ceramic or a corresponding transparent and temperature-resistant material held by this common frame.
  • the individual panes can also consist of different materials
  • the disks can be coated in the usual way
  • Frame and panes are dimensioned so that the internal dimensions of the frame, which holds the arrangement of the panes, are larger than the dimensions of the opening of the device at any point. Then, when the door is closed, the entire device opening is covered by the pane that is closest to the device The frame is therefore not in direct contact with the interior of the oven.
  • the framed door closes off the appliance against the appliance opening frame, the frame, along a line that lies within the frame that holds the panes.
  • the seal is preferably applied to the appliance opening frame
  • the seal consists of a material with low thermal conductivity.
  • a ceramic seal or a seal made of silicone, for example a sealing strip is possible.
  • the seal is preferably designed as a hose or also as a profile.
  • the seal is the seal between the device opening frame and the pane of preferably glass or glass ceramic so well that further sealing aids are not necessary.
  • the seal can also be attached to the pane closest to the interior of the device instead of at the edge of the device opening.
  • the frame of the glazed door is flush on the outside with the device opening frame, which preferably also corresponds to the flush closing with the device front.
  • the panes can be attached to the frame in various ways.
  • the frame preferably has cutouts for receiving at least one pane. In this at least the disk closest to the device is fixed.
  • the front window of the door can also be fixed in recesses.
  • the front window is attached to the outside of the frame of the viewing door. This is possible, for example, using an adhesive or using a mounting bracket.
  • the format of the front screen is preferably chosen so large that it is flush with the outer frame edge, particularly on the sides.
  • the end face of the edge of the windshield is edge processed, preferably provided with a so-called C-cut.
  • the frame can have further recesses in which the pane (s) is or are fixed.
  • the frame advantageously has these cutouts regardless of whether the glazed door has a third or further pane or not. Then, using one and the same frame type, both double and triple or multi-pane oven doors can be manufactured. Except for the insertion of the additional pane (s), i.e. the repetition of the step "fixing a pane", the production process remains the same.
  • the cutouts are designed as small recesses in the frame, into which the pane is embedded due to its edge shape or with attached clips. Such recesses should be at least two opposite sides of the frame be attached.
  • a continuous groove is advantageously cut out on at least one of the four inner edge sides of the frame.
  • one or more grooves running around the entire inner edge of the frame serve to receive the one or more panes, ie the cutouts for each pane are designed as a circumferential groove.
  • a disk can be simply inserted with a precise fit or can also be embedded by means of a heat-resistant or heat-insulating material.
  • the frame consists of a poorly heat-conducting material.
  • the outer panes are practically not heated by heat conduction over the frame. They are, so to speak, "decoupled” from the pane that is in direct contact with the temperature-increased interior. This reduces the outside temperature of the glazed door.
  • PTFE polytetrafluoroethylene
  • ⁇ specific thermal conductivity
  • Poorly heat-conducting ie having low thermal conductivity
  • the frame will be made of suitable materials with specific thermal conductivities well below 50 ⁇ m "1 s ' 1 K " 1 .
  • the frame consists of a thermosetting or thermoplastic plastic or plastic composite material, for example melamine resins, polyester resins, polyurethanes.
  • a thermosetting or thermoplastic plastic or plastic composite material for example melamine resins, polyester resins, polyurethanes.
  • the specific temperature resistance of the frame material varies depending on the size of the sight frame and the furnace opening. The further the inner edge of the door frame is from the opening of the furnace, the lower the requirements for the temperature resistance of the frame material Reducing the opening of the device or increasing the internal dimensions of the frame means that plastics with temperature resistance below 200 ° C can also be used
  • the frame with its grooves is preferably composed of at least two frame parts, for example a u-shaped part and an upper bar. With an otherwise constant production process, the required number of panes can easily be inserted into the one frame part before the frame, for example through Screwing the parts together.
  • Such a modular structure of the frame not only simplifies the manufacture of the glazed door, but also makes cleaning easier for its user.
  • the frame can also have a further modular structure, for example it can consist of the possibly multi-part spacer frame, which receives the panes in its grooves and serves as a spacer, and a supporting main frame.
  • both the principle of the "open oven door” and that of the "closed” can be realized with the glazed door according to the invention, as preferred according to cooking habits.
  • the "open” oven door which differs from the “closed” only by additional openings, the outside temperature of the windscreen is reduced by the air circulation (chimney effect).
  • the "closed” door prevents dirt particles from depositing on the inside of the panes.
  • the handle for opening and closing the door can be attached to the windshield in a conventional manner.
  • it can be glued directly to the pane or screwed to the frame through holes in the pane.
  • It can also be part of the modular framework. This is particularly preferred if the front pane of the door is fixed in a groove in the frame, or if the frame is constructed in a modular manner in such a way that it consists of a smaller spacer frame with an inserted / recessed pane (s) and an attached front pane and a larger main frame, to which the handle is attached.
  • the hinges for opening and closing the door are attached to the frame in a known manner.
  • the customary spring hinge for fastening the door can be inserted directly into the frame during manufacture of the frame. This eliminates the otherwise necessary screw connections.
  • the glazed door according to the invention thus represents a ready-to-install unit for locking the interior of a device with an increased interior temperature.
  • the viewing door according to the invention is extremely suitable for realizing pane arrangements with an acute angle between at least two panes, as are known from DE 42 09 622 C2.
  • the recesses or grooves are accordingly designed obliquely.
  • the front pane and the pane closest to the temperature-increased interior space run essentially parallel to one another and form the plane of the viewing door, while the at least one further pane between them is inclined in the vertical direction.
  • the front pane and the next inner pane converge upwards, the common frame having openings at least in the area between these two panes on its lower and upper sides through which the outside air can circulate.
  • FIG. 1 is an exploded view of a glazed door with an arrangement of three panes on a frame consisting of a main frame and a spacer frame,
  • FIG. 2 shows a schematic, not to scale, section through an oven with a viewing door, consisting of a frame and two panes, which illustrates the arrangement of the frame of the viewing door and the device opening frame which is essential to the invention.
  • the glazed door according to FIG. 1 has a three-pane arrangement, which consists of a front pane 1, a central pane 2 and an inner pane 3, which points to the temperature-increased space inside the oven housing (not shown).
  • the windscreen 1 is fastened by means of the mounting bracket 4 on the outside to the three-part spacer frame 5, which is made of a melamine resin.
  • the handle 7 which has two cover caps 8 at its ends, is screwed onto the frame at two holes with the screws 6.
  • the spacer frame 5 contains the disks 2 and 3 in its circumferential grooves. The frame and grooves are shaped such that a larger disk than the middle disk 2 could be inserted as the inner disk 3. This is advantageous for optical reasons.
  • the 'hinges 9 are screwed, with which the glazed door is connected to the oven housing and via which it can be opened and closed.
  • the spacer frame 5 is inserted into the U-shaped main frame 10. This also consists of the melamine resin.
  • a strip 11 made of the same material is screwed to the frame 10 and thus completes the modular frame construction.
  • Fig. 2 shows the schematic section through an oven with a closed viewing door in the supervision.
  • the glazed door consists of the front pane 1 and the inner pane 3 held by the frame 12.
  • the pane 3 is embedded in the groove 14 of the frame 12 which is closest to the interior 13.
  • the further groove 15 of the frame 12, which could accommodate a further pane (see pane 2 in FIG. 1), is free.
  • the front screen 1 is attached to the outside of the frame. Its edge is flush with the outer frame edge.
  • the handle 7 is attached to the windshield 1. When the door is closed, the interior is sealed by the circumferential silicone seal 16 which is attached to the furnace opening frame 17 and which is in contact with the inner pane 3.
  • the frame 12 is neither in contact with the seal nor with the furnace opening frame 17, nor is it opposite the device opening.
  • the distance between the frame 12 and the seal of at least 0.5 cm is sufficient to be able to use materials with a lower temperature resistance than those of the conventional door panels as the frame material, for example the above-mentioned plastic groups melamine resin, polyester resin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Ovens (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

L'invention concerne une porte de regard destinée à un appareil à température intérieure élevée, notamment pour un four domestique ou une étuve, comportant un agencement d'au moins deux vitres en verre, vitrocéramique ou en un matériau équivalent transparent et résistant aux températures élevées, positionnées à distance l'une de l'autre, cet agencement étant maintenu par un cadre commun. Ce cadre est constitué d'un matériau faiblement thermoconducteur et ses dimensions intérieures sont en tout point supérieures aux dimensions de l'ouverture de l'appareil. Grâce à une garniture d'étanchéité, la porte de regard encadrée isole l'appareil, par rapport au cadre de l'ouverture de celui-ci, le long d'une ligne se situant à l'intérieur du cadre maintenant les vitres.
PCT/EP1998/006871 1997-10-31 1998-10-29 Porte de regard pour appareil a temperature interieure elevee Ceased WO1999024759A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19748196.5 1997-10-31
DE19748196A DE19748196C2 (de) 1997-10-31 1997-10-31 Sichttür für ein Gerät mit erhöhter Innenraumtemperatur

Publications (2)

Publication Number Publication Date
WO1999024759A2 true WO1999024759A2 (fr) 1999-05-20
WO1999024759A3 WO1999024759A3 (fr) 1999-07-22

Family

ID=7847250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/006871 Ceased WO1999024759A2 (fr) 1997-10-31 1998-10-29 Porte de regard pour appareil a temperature interieure elevee

Country Status (2)

Country Link
DE (1) DE19748196C2 (fr)
WO (1) WO1999024759A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100192935A1 (en) * 2007-07-02 2010-08-05 Electrolux Home Products Corporation N.V. Cooking oven door with a door frame and a door panel
JP2015007505A (ja) * 2013-06-25 2015-01-15 日立アプライアンス株式会社 加熱調理器
DE102014205115A1 (de) * 2014-03-19 2015-09-24 BSH Hausgeräte GmbH Tür für ein Haushaltsgerät mit einem zentralen Trägerrahmen sowie Haushaltsgerät mit einer derartigen Tür
EP2370736B1 (fr) 2008-12-30 2018-04-11 Arçelik Anonim Sirketi Four comprenant une porte

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20010307U1 (it) * 2001-06-04 2002-12-04 Whirlpool Co Porta per forno di rapido montaggio
DE10360386A1 (de) * 2003-12-22 2005-07-14 Electrolux Home Products Corporation N.V. Tür zum Verschließen der Beschickungsöffnung eines Garraums eines Garofens, insbesondere eines Haushaltsgarofens
DE10360384A1 (de) * 2003-12-22 2005-07-28 Electrolux Home Products Corporation N.V. Vorrichtung zum Verschließen der Zugangsöffnung eines Innenraums eines Haushaltsgeräts
DE102005033225B4 (de) * 2005-07-15 2021-09-30 BSH Hausgeräte GmbH Hausgerätetürelement und Backofentür mit einem solchen Hausgerätetürelement
DE102009003106A1 (de) 2009-05-14 2010-11-18 BSH Bosch und Siemens Hausgeräte GmbH Trägerelement für eine Tür eines Hausgeräts sowie Tür mit einem derartigen Trägerelement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8515777D0 (en) * 1985-06-21 1985-07-24 Moffat E M Cooking apparatus
JPH03105191A (ja) * 1989-09-20 1991-05-01 Nippon Scient Kk 真空乾燥装置
FR2670563B1 (fr) * 1990-12-14 1996-04-05 Europ Equip Menager Porte pour four de cuisson a usage domestique.
DE4209622A1 (de) * 1992-03-25 1993-09-30 Schott Glaswerke Sichtfenster für ein Gerät mit erhöhter Innenraumtemperatur
IT1269276B (it) * 1994-12-02 1997-03-26 Grandi Angelo Cucine Spa Guarnizione di tenuta tra battente e cornice di porte, in particolare di forni a vapore
DE19521690A1 (de) * 1995-06-14 1996-12-19 Bosch Siemens Hausgeraete Glaskeramikmulde
DE19638241A1 (de) * 1996-09-19 1998-03-26 Miele & Cie Backofen mit einer Einrichtung zur pyrolytischen Selbstreinigung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100192935A1 (en) * 2007-07-02 2010-08-05 Electrolux Home Products Corporation N.V. Cooking oven door with a door frame and a door panel
US8413649B2 (en) * 2007-07-02 2013-04-09 Electrolux Home Products Corporation N.V. Cooking oven door with a door frame and a door panel
EP2370736B1 (fr) 2008-12-30 2018-04-11 Arçelik Anonim Sirketi Four comprenant une porte
JP2015007505A (ja) * 2013-06-25 2015-01-15 日立アプライアンス株式会社 加熱調理器
DE102014205115A1 (de) * 2014-03-19 2015-09-24 BSH Hausgeräte GmbH Tür für ein Haushaltsgerät mit einem zentralen Trägerrahmen sowie Haushaltsgerät mit einer derartigen Tür

Also Published As

Publication number Publication date
DE19748196A1 (de) 1999-05-06
WO1999024759A3 (fr) 1999-07-22
DE19748196C2 (de) 2001-04-05

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