EP0690662B1 - Kochfeld für elektrische Kochgeräte mit strahlenden Platten - Google Patents

Kochfeld für elektrische Kochgeräte mit strahlenden Platten Download PDF

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Publication number
EP0690662B1
EP0690662B1 EP19950201500 EP95201500A EP0690662B1 EP 0690662 B1 EP0690662 B1 EP 0690662B1 EP 19950201500 EP19950201500 EP 19950201500 EP 95201500 A EP95201500 A EP 95201500A EP 0690662 B1 EP0690662 B1 EP 0690662B1
Authority
EP
European Patent Office
Prior art keywords
radiating
cooking hob
electric
cup
plate
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 - Lifetime
Application number
EP19950201500
Other languages
English (en)
French (fr)
Other versions
EP0690662A1 (de
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy 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 Candy SpA filed Critical Candy SpA
Publication of EP0690662A1 publication Critical patent/EP0690662A1/de
Application granted granted Critical
Publication of EP0690662B1 publication Critical patent/EP0690662B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H05B3/72—Plates of sheet metal

Definitions

  • the present invention relates to a cooking hob for cookers with radiating electric plates.
  • Known cooking hobs for cookers with radiating electric plates consist of metal sheets, and provide housings for the radiating plates consisting of circular holes with a diameter substantially corresponding to that of the plates which have to be housed therein. The edges of these holes are drawn and have substantially vertical walls.
  • the radiating plate provided with a flange with a slightly larger diameter compared to the body of the plate, rests on said walls of the hole.
  • the plate is attached by means of a cup-shaped counterflange provided with a central hole for the passage of a bolt screwed to the radiating plate.
  • the counterflange is mounted on the lower surface of the cooking hob, and is attached to the plate by means of a tightening nut.
  • the counterflange also consists of a metal sheet, but with greater thickness compared to the cooking hob, to prevent it from deforming when the fastening nut is tightened onto the bolt of the radiating plate.
  • a second disadvantage lies in the complexity of the manufacturing process, which has to include moulding of the metal sheet to form the holes, trimming of the edges of said holes and drawing of the sheet to give it the required shape.
  • the metal sheet forming the counterflange being of greater thickness, has to be drawn separately. It should also be taken into account that the part of the sheet which is removed to form the holes cannot be reused, thus leading to a waste of material.
  • a further problem consists of the laborious efforts involved in mounting the radiating plates on the cooking hob: before screwing the fastening nut of the counterflange, both the radiating plate and the respective counterflange must in fact be centered in the housing hole.
  • the wiring layout is designed in order to adapt to the variable position of the electric terminals of the plates.
  • AT-B-123 135 discloses a portable electric cooking plate as defined in the preamble of claim 1.
  • the object of the present invention is to provide a cooking hob for cookers with radiating electric dates which is unaffected by the aforementioned problems.
  • this object is achieved thanks to a cooking hob as defined in claim 1.
  • the present invention it is possible to provide a stronger cooking hob, whose production only requires operations of drawing and not moulding nor trimming of holes, as is however the case for known cooking hobs.
  • the cooking hob is thus less subject to torsions during the machining phase, and has properties of greater rigidity which reduce heat deformations. It is no Longer necessary to provide separate parts which, being of different thicknesses, have to be moulded and drawn separately, and complicate the operations of assembly: the latter are instead simplified, since positioning of the radiating plate in the respective housing is immediate, and it is not necessary to pay attention to centering.
  • a cooking hob according to the present invention consists of a metal sheet 20, appropriately shaped by means of drawing operations. Said cooking hob may house only radiating electric plates or radiating electric plates in combination with gas burners.
  • FIGs 1 and 2 show a part of a cooking hob according to the invention wherein a housing 1 is formed for a radiating electric plate 2 (which can be seen in section in Figure 3).
  • the housing 1 is obtained by drawing of the metal sheet 20, and comprises a cup 3, for example circular, whose base 6 is lowered in relation to the surface 4 of the cooking hob.
  • the edges 5 of the cup 3 are instead raised in relation to the surface 4 of the cooking hob to form a support crown 21.
  • a circular projection part 8 is formed on the base 6 of the cup 3 and again obtained by drawing of the sheet 20, which projection surrounds a lowered circular area 9 in the centre whereof a central through hole 7 is provided.
  • An opening 10 (in the shape of a circular crown segment) is also provided on the base 6 of the cup 3 for the passage of electric contacts 11 of the radiating plate 2 (Fig. 3).
  • the base 6 of the cup 3 is therefore substantially closed, with only the minimum necessary number of openings for electric connection and attachment of the radiating plate 2 being formed therein.
  • the position of the electric terminals 11 is predefined and depends on the position of the opening 10.
  • the radiating plate 2 comprises, in a manner in itself known, a base 22, an intermediate circular flange 16 and an upper radiating disk 23. At the bottom of the base 22 the electric terminals 11 are connected, with a threaded tie rod 15.
  • the circular flange 16 has a diameter which is slightly Larger than the base 22.
  • the radiating plate 2 is placed in the cup 3 and oriented so that the pins 13 are inserted in the respective holes 12 provided on the base of the cup 3 itself. In this position, the electric terminals 11 project below the sheet 20.
  • the circular flange 16 rests on the support crown 21.
  • the radiating plate 2 is attached by screwing a nut 14 on the threaded tie rod 15, which projects from the hole 7.

Landscapes

  • Baking, Grill, Roasting (AREA)
  • Inorganic Insulating Materials (AREA)
  • Cookers (AREA)
  • Table Devices Or Equipment (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)

Claims (2)

  1. Kochfeld für Kochgeräte mit wärmeabstrahlenden Elektroplatten, welches ein Metallblech (20) aufweist, in welchem wenigstens ein Gehäuse (1) für eine zugeordnete wärmeabstrahlende Elektroplatte (2) ausgebildet ist, wobei das Gehäuse einen Napf (3) aufweist, welcher eine Form und Abmessungen hat, welche im wesentlichen jenen der wärmeabstrahlenden Elektroplatte (2) entsprechen, und eine Basis (6) hat, welche mit einer Öffnung (10) zum Durchgang von elektrischen Leitungen (11) der wärmeabstrahlenden Elektroplatte (2) versehen ist, dadurch gekennzeichnet, daß der Napf (3) von einem Bereich des Metallblechs (20) gebildet wird, welcher zur Bildung eines Napfes (3) tiefgezogen ist, die Basis (6) eine im wesentlichen geschlossene Metallplattenebene aufweist, welche mit einer zentralen Durchgangsöffnung (7) zum Durchgang einer mit Gewinde versehenen Verbindungsstange (15) versehen ist, welche integral mit der wärmeabstrahlenden Elektroplatte (2) verbunden ist, und zur Abstützung sowie Fixierung der wärmeabstrahlenden Elektroplatte (2) an der Basis des Napfes (3) vorgesehen ist, und eine Öffnung (10) für den Durchgang von elektrischen Leitungen (11) hat, welche zwischen der zentralen Durchgangsöffnung (7) und dem Umfang der Basis angeordnet ist.
  2. Kochfeld nach Anspruch 1, dadurch gekennzeichnet, daß der zur Bildung eines Napfes (3) tiefgezogene Bereich von einem ringförmigen tiefgezogenen Bereich (21) des Metallblechs (20) umgeben ist, welcher im Verhältnis zu einer oberen Fläche (5) des Kochfelds vorsteht, um eine Abstützung für einen Flansch (16) der wärmeabstrahlenden Elektroplatte (2) zu bilden.
EP19950201500 1994-06-15 1995-06-07 Kochfeld für elektrische Kochgeräte mit strahlenden Platten Expired - Lifetime EP0690662B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI940429U 1994-06-15
ITMI940429 IT233498Y1 (it) 1994-06-15 1994-06-15 Piano di cottura per cucina con piastre radianti elettriche

Publications (2)

Publication Number Publication Date
EP0690662A1 EP0690662A1 (de) 1996-01-03
EP0690662B1 true EP0690662B1 (de) 2002-05-02

Family

ID=11368127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950201500 Expired - Lifetime EP0690662B1 (de) 1994-06-15 1995-06-07 Kochfeld für elektrische Kochgeräte mit strahlenden Platten

Country Status (4)

Country Link
EP (1) EP0690662B1 (de)
DE (1) DE69526541T2 (de)
ES (1) ES2176278T3 (de)
IT (1) IT233498Y1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH72258A (de) * 1915-08-30 1916-09-16 Siemens Schuckertwerke Gmbh Elektrischer Mehrlochkochherd
AT123135B (de) * 1929-11-21 1931-06-10 Karl Ing Loysch Geschlossene elektrische Kochplatte.
GB958490A (en) * 1960-02-12 1964-05-21 Belling & Company Ltd Improvements in or relating to electric and other forms of domestic cookers
US3345498A (en) * 1965-02-01 1967-10-03 Gen Motors Corp Infrared surface heating unit

Also Published As

Publication number Publication date
ITMI940429U1 (it) 1995-12-15
DE69526541D1 (de) 2002-06-06
DE69526541T2 (de) 2002-12-05
ES2176278T3 (es) 2002-12-01
EP0690662A1 (de) 1996-01-03
ITMI940429V0 (it) 1994-06-15
IT233498Y1 (it) 2000-01-28

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