EP0005486B1 - Table de cuisson avec une plaque de cuisson en vitrocéramique formant la surface de cuisson - Google Patents

Table de cuisson avec une plaque de cuisson en vitrocéramique formant la surface de cuisson Download PDF

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Publication number
EP0005486B1
EP0005486B1 EP79101364A EP79101364A EP0005486B1 EP 0005486 B1 EP0005486 B1 EP 0005486B1 EP 79101364 A EP79101364 A EP 79101364A EP 79101364 A EP79101364 A EP 79101364A EP 0005486 B1 EP0005486 B1 EP 0005486B1
Authority
EP
European Patent Office
Prior art keywords
cover plate
heating units
hob according
glass ceramic
leaf springs
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.)
Expired
Application number
EP79101364A
Other languages
German (de)
English (en)
Other versions
EP0005486A1 (fr
Inventor
Gerhard Dipl.-Ing. Gössler
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer 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 EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT79101364T priority Critical patent/ATE126T1/de
Publication of EP0005486A1 publication Critical patent/EP0005486A1/fr
Application granted granted Critical
Publication of EP0005486B1 publication Critical patent/EP0005486B1/fr
Expired 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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/108—Mounting of hot plate on worktop
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits

Definitions

  • the invention relates to a hob according to the preamble of claim 1.
  • a built-in hob with a glass ceramic hotplate has already become known, in which a lower cover plate forms the support both for the glass ceramic plate and for the heating units .
  • the heating units are pressed against the glass ceramic plate by compression springs, which are guided on pins which are attached to the bottom of the cover plate.
  • the compression springs press against rags protruding laterally from the cover plate.
  • the glass ceramic plate is enclosed in a circumferential frame and can be removed independently of the cover plate.
  • the object of the invention is to provide a hob of the type mentioned, which manages with a minimum of manufacturing and assembly work and allows safe and uncomplicated guidance and centering of the cooking units with easy repair options.
  • the cover plate also represents the support for the heating units.
  • the formations simultaneously form a centering for the heating units against lateral movement and stiffen the cover plate, which can be provided with a raised edge and can rest on the worktop with a flange.
  • the leaf spring elements can easily be attached to the cover plate from the outside and protrude through the recesses, so that the heating units can be inserted into the recesses from above. They do not need to be "threaded” laboriously, but a rotation of the heating units automatically locks the leaf springs into the guide recesses, so that the leaf springs also have a guiding and centering function in addition to their spring function.
  • the heating unit also maintains a relatively constant distance in the circumferential direction from the protrusions of the cover plate in addition to a lower distance, so that an insulation distance is established.
  • the advantageously short and essentially straight leaf spring elements can be screwed flat onto the part of the cover plate lying between the formations.
  • the heating units project essentially into the formations by the depth of the guide recesses.
  • the heating units preferably have multiple guide recesses as the leaf spring element, there is a relatively large possibility of adaptation in the arrangement of the heating elements in the circumferential direction.
  • the leaf spring elements can preferably have a projection, e.g. in the form of a riveted pin or the like, which engages in a hole on the heating unit for additional centering.
  • the heating units can preferably contain radiant heaters.
  • the design and arrangement of the hob according to the invention is particularly suitable for radiant heaters which are appropriately fixed and insulated with a certain distance in the interior of the flat circular sheet metal shells forming the jacket of the heating units.
  • the invention is also particularly suitable for cooktops which are built into a worktop, because it makes it possible to produce a stable and transportable unit with a plurality of hotplates which, with good thermal insulation, manages to the side and downwards with a minimum installation height.
  • the glass-ceramic plate provided with a frame can be removably attached in the cover plate, which is fastened separately in a work table cutout, and in which the outer edge is screwed onto threaded nuts fastened to the outside of the cover plate.
  • These can preferably be welded to the underside of a flange of the cover plate resting on the work table. This particularly simple arrangement makes it possible to lift off the glass ceramic plate together with the frame surrounding it, so that the heating units are exposed for assembly and repair.
  • a hob 11 which has a cover plate 12, which has the shape of a square flat, upwardly open bowl with a bottom 13 and an upwardly facing edge 14 with an outwardly directed flange 15 on the upper edge.
  • the cover plate is made from a deformed piece of sheet metal and has four cooking points for the cooking hob shown in the drawing with four cooking areas 16 directed downwards relative to the base 13.
  • each formation 16 Regularly distributed over the circumference of each formation 16, three openings 17 are provided in the region of the lower bottom edge of the formation, into which leaf spring elements 18 project.
  • the leaf spring elements 18 are short, essentially straight strips of spring material, which in the area of their inwardly facing free end have upward angled portions 20, so that they are U-shaped in this area, and in the area of their outer end by means of self-tapping screws 19 'are screwed to the bottom 13 of the cover plate from the outside.
  • a bend 20 at its end engages in a slot in the cover plate and thus ensures its essentially radial alignment with respect to the formations.
  • the hotplates are formed by heating units 22. These are preferably radiant heating units which are not shown in detail here and which can be designed, for example, according to DE-A-2551 137. They can have an insulation inserted into an outer shell in the form of a circular flat bowl and radiation heaters fixed thereon in the form of spirals or the like. The insulation 23 projects somewhat beyond the upper edge of the sheet metal bowl and lies against the underside of a glass ceramic plate 24, which forms the cooking surface of the hob with its upper side.
  • the heating unit i.e. their outer jacket formed as a sheet metal shell, guide recesses 25, which are designed as partial indentations of the edge.
  • guide recesses 25 are provided on each heating unit at regular intervals.
  • the leaf spring elements 18 engage with their free end in three of these guide recesses and press the heating unit 22 upward against the glass ceramic plate.
  • the heating unit 22 extends into the formations 16.
  • the guide recesses 25 are so long in the radial direction that they can cooperate with the free ends of the leaf spring elements for centering the heating elements in the middle of the formations. This and a corresponding choice of the depth of the formations creates a lateral and lower insulation gap around each heating unit, into which insulating material can also be inserted if necessary.
  • the glass ceramic plate 24 is fastened by means of a cement 26 in a frame 27 made of thin stainless steel, which has a circumferential, outwardly facing edge which lies approximately at the height of the glass ceramic plate and which rests on the peripheral flange 15, while a downward-pointing part of the frame 27 is fixed leads within the edge 14 of the cover plate.
  • An inwardly facing circumferential leg 28 of the frame carries the glass ceramic plate.
  • the frame 27 is attached to the cover plate 12 by screws 29 (screwed out for clarity), which extend through four holes in the four corners of the frame and the flange 15 and are screwed there into threaded nuts 30 which are welded to the flange 15 from below are.
  • the hob 11 is arranged in a cutout 31 of a worktop 32 of kitchen furniture, lies in the example shown with the flange 15 on the top of the worktop 32 and is fixed by a clamping device 33 which can be pressed onto the underside of the worktop with a gripping claw.
  • the threaded nuts 30 lie in the area of blind holes in the worktop in the four corners.
  • Fig. 3 a variant is shown in which the leaf spring element 18 'is formed flat and without bends in the rest of the same embodiment. It is guided in upwardly pronounced recesses 36 in the cover plate and has at its inner free end a projection 35 designed as a riveted pin, which can engage in a hole in the region of the guide recesses 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)
  • Baking, Grill, Roasting (AREA)

Claims (8)

1. Bac de cuisson dont la surface chauffante consiste en une plaque (24) de vitrocéramique, contre laquelle sont appliqués élastiquement des éléments chauffants en forme de cuvette disposés dans une tôle de couverture (12) façonnée par formage, ladite plaque de vitrocéramique obturant la face supérieure de ladite tôle de couverture, bac caractérisé par le fait que ladite tôle de couverture (12) comporte, pour chaque élément chauffant individuel (22), un bombement complémentaire (16) qui, au moins en trois endroits de sa région marginale, présente des échancrures (17) par lesquelles les lames de ressort (18) montées à l'extérieur de ladite tôle de couverture (12) pénètrent dans l'espace interne desdits bombements (16), en étant engagées dans des renfoncements de guidage (25) correspondants au voisinage du bord inférieur desdits éléments chauffants (22), qu'elles poussent vers le haut en les centrant.
2. Bac de cuisson selon la revendication 1, caractérisé par le fait que les lames de ressort (18) sont guidées par leurs extrémités libres contre les délimitations internes des renfoncements de guidage (25).
3. Bac de cuisson selon l'une des revendications 1 et 2, caractérisé par le fait que les lames de ressort (18) sont vissées à plat contre la partie de la tôle de couverture (12) séparant les bombements (16).
4. Bac de cuisson selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que les éléments chauffants (22) comportent des renfoncements de guidage (25), le nombre desquels est un multiple du nombre des lames de ressort (18) prévues.
5. Bac de cuisson selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que les lames de ressort comportent, à proximité de leur extrémité interne, une saillie (35) qui s'engage dans un trou percé dans l'élément chauffant (22).
6. Bac de cuisson selon l'une quelconque des revendications 1 à 5, caractérisé par le fait que les éléments chauffants (22) comportent des organes de chauffage par diffusion.
7. Bac de cuisson selon l'une quelconque des revendications 1 à 6, caractérisé par le fait que la plaque (24) en vitrocéramique dotée d'un cadre (27) est montée de manière amovible dans la tôle de couverture (12) fixée individuellement dans une ouverture (31) d'un plan de travail, le bord externe étant assujetti au moyen de vis (29) introduites dans des écrous (30) fixés à l'extérieur de ladite tôle de couverture (12).
8. Bac de cuisson selon la revendication 7, caractérisé par le fait que les écrous (30) sont soudés à la face inférieure d'une bride (15) de la tôle de couverture (12), appliquée sur le plan de travail (30).
EP79101364A 1978-05-11 1979-05-04 Table de cuisson avec une plaque de cuisson en vitrocéramique formant la surface de cuisson Expired EP0005486B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79101364T ATE126T1 (de) 1978-05-11 1979-05-04 Kochmulde mit einer die kochflaeche bildenden glaskeramikplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7814217U 1978-05-11
DE19787814217U DE7814217U1 (de) 1978-05-11 1978-05-11 Kochmulde mit einer die kochflaeche bildenden glaskeramikplatte

Publications (2)

Publication Number Publication Date
EP0005486A1 EP0005486A1 (fr) 1979-11-28
EP0005486B1 true EP0005486B1 (fr) 1981-07-29

Family

ID=6691372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79101364A Expired EP0005486B1 (fr) 1978-05-11 1979-05-04 Table de cuisson avec une plaque de cuisson en vitrocéramique formant la surface de cuisson

Country Status (3)

Country Link
EP (1) EP0005486B1 (fr)
AT (1) ATE126T1 (fr)
DE (2) DE7814217U1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915529C3 (de) * 1979-04-18 1981-10-29 Gebrüder Thielmann AG KG, 6342 Haiger Einbau-Kochfeld mit einer Kochplatte aus glaskeramischem Material
DE3037965C2 (de) * 1980-10-08 1982-10-28 Blanc Gmbh & Co, 7519 Oberderdingen Kochmulde mit einer die Kochfläche bildenden Glaskeramikplatte
DE3204760A1 (de) * 1982-02-11 1983-08-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kochfeld aus glaskeramischem material mit einem strahlungsheizkoerper
GB8621876D0 (en) * 1986-09-11 1986-10-15 Thorn Emi Appliances Cooking hob
GB2214767A (en) * 1988-01-28 1989-09-06 Electrolux Ab Ceramic hot-plates
FR2664458A1 (fr) * 1990-07-06 1992-01-10 Philips Electronique Lab Table chauffante.
IT221701Z2 (it) * 1991-02-28 1994-09-15 Smeg Spa Contenitore dei dispositivi di comando per piani di cottura da incasso
ES2070740B1 (es) * 1993-02-17 1997-06-01 Balay Sa Sistema conector para aparatos de coccion.
DE19527823A1 (de) * 1995-07-29 1997-01-30 Ego Elektro Blanc & Fischer Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2205132C3 (de) * 1972-02-03 1980-09-04 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen Elektrokochgerät
DE2331270C2 (de) * 1973-06-19 1983-03-10 Jenn-Air Corp., 46226 Indianapolis, Ind. Herd mit austauschbaren Kocheinheiten
DE2340818C3 (de) * 1973-08-11 1980-02-14 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen Tragrahmen für eine Elektrokochplatte
DE7718108U1 (de) * 1977-06-08 1977-09-22 Imperial-Werke Gmbh, 4980 Buende Einbau-kochmulde mit einer glaskeramik- kochplatte

Also Published As

Publication number Publication date
DE7814217U1 (de) 1978-08-24
EP0005486A1 (fr) 1979-11-28
DE2960523D1 (en) 1981-10-29
ATE126T1 (de) 1981-08-15

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