EP0358469A1 - Ceramic cooker hobs - Google Patents

Ceramic cooker hobs Download PDF

Info

Publication number
EP0358469A1
EP0358469A1 EP89309004A EP89309004A EP0358469A1 EP 0358469 A1 EP0358469 A1 EP 0358469A1 EP 89309004 A EP89309004 A EP 89309004A EP 89309004 A EP89309004 A EP 89309004A EP 0358469 A1 EP0358469 A1 EP 0358469A1
Authority
EP
European Patent Office
Prior art keywords
hob
ceramic
cooker
ceramic glass
cutouts
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.)
Withdrawn
Application number
EP89309004A
Other languages
German (de)
French (fr)
Inventor
Peter William Crossley
Peter Worrall
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.)
Electrolux Household Appliances Ltd
Original Assignee
Emaco Ltd
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 Emaco Ltd filed Critical Emaco Ltd
Publication of EP0358469A1 publication Critical patent/EP0358469A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • 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
    • H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater

Definitions

  • the invention relates to ceramic cooker hobs.
  • hobs normally consist of a hob top comprising a plate of ceramic glass held in a metal mounting, usually comprising a frame fabricated from aluminium extrusions or rolled steel sections.
  • the ceramic glass sheet may be secured in the frame by a gap-filling adhesive, thereby avoiding the formation of a dirt trap at the edge of the sheet.
  • An object of the present invention is to provide an alternative construction for a ceramic cooker hob which is simple and inexpensive to manufacture, which is particularly adapted for use with halogen-type heater elements in that it reduces the escape of stray light, and which, in some cases, permits a thinner ceramic plate to be used.
  • the cooker hob shown in the drawing comprises a ceramic glass sheet 1 forming the hob top mounted in a panel 2 pressed from sheet steel.
  • the upper surface of the panel has a shallow recess large enough to accommodate the ceramic sheet, and having a flat bottom 3, so forming a shallow tray.
  • cutouts 4 and 5 are formed below which, when the cooker hob is fully assembled will be placed the heating elements which may comprise spiral resistive heaters, or preferably, radiant heaters of the halogen type.
  • the ceramic glass sheet 1 rests on spacers 6 which are provided at intervals under the edges of the ceramic glass sheet, and preferably also in the central region between the heater apertures 4, 5.
  • the groove round the edge of the ceramic glass plate is filled with a gap-filling adhesive, as shown at 7.
  • the sheet steel pressing 2 is relatively inexpensive to produce, does not require time to be spent on assembly, and does not have corner joints which could act as dirt traps.
  • the tray-like bottom of the recess obstructs stray light from the heaters, particularly if halogen type heaters are used, so that light from them is not visible outside the area of the hob ring itself.
  • the additional support provided by this construction means that in some cases a thinner plate of ceramic glass may be used, for example 3 millimetres thick instead of the 4 millimetre thickness commonly now employed.

Abstract

A ceramic cooker hob in which a ceramic glass hob top 1 is mounted in a panel 2 of pressed sheet metal for example steel having a shallow flat bottomed recess to receive the ceramic glass. The bottom of the recess has cutout portions for the heaters to be positioned below the hob. The hob top may be fixed into the mounting panel with a gap filling adhesive.

Description

  • The invention relates to ceramic cooker hobs. Such hobs normally consist of a hob top comprising a plate of ceramic glass held in a metal mounting, usually comprising a frame fabricated from aluminium extrusions or rolled steel sections. The ceramic glass sheet may be secured in the frame by a gap-filling adhesive, thereby avoiding the formation of a dirt trap at the edge of the sheet.
  • An object of the present invention, which is defined in the appended claims, is to provide an alternative construction for a ceramic cooker hob which is simple and inexpensive to manufacture, which is particularly adapted for use with halogen-type heater elements in that it reduces the escape of stray light, and which, in some cases, permits a thinner ceramic plate to be used.
  • The invention will be further described with reference to the single figure of the accompanying drawing, which is a vertical section through a ceramic cooker hob according to the invention showing apertures for heater elements.
  • The cooker hob shown in the drawing comprises a ceramic glass sheet 1 forming the hob top mounted in a panel 2 pressed from sheet steel. The upper surface of the panel has a shallow recess large enough to accommodate the ceramic sheet, and having a flat bottom 3, so forming a shallow tray. In the bottom of this tray cutouts 4 and 5 are formed below which, when the cooker hob is fully assembled will be placed the heating elements which may comprise spiral resistive heaters, or preferably, radiant heaters of the halogen type.
  • The ceramic glass sheet 1 rests on spacers 6 which are provided at intervals under the edges of the ceramic glass sheet, and preferably also in the central region between the heater apertures 4, 5. The groove round the edge of the ceramic glass plate is filled with a gap-filling adhesive, as shown at 7.
  • The sheet steel pressing 2 is relatively inexpensive to produce, does not require time to be spent on assembly, and does not have corner joints which could act as dirt traps. The tray-like bottom of the recess obstructs stray light from the heaters, particularly if halogen type heaters are used, so that light from them is not visible outside the area of the hob ring itself. Furthermore, the additional support provided by this construction means that in some cases a thinner plate of ceramic glass may be used, for example 3 millimetres thick instead of the 4 millimetre thickness commonly now employed.

Claims (4)

1. A ceramic cooker hob comprising a ceramic glass hob top mounted in a single panel of pressed sheet metal formed with a flat-bottomed recess to accommodate the ceramic glass hob top, the recessed portion having cutouts at the positions of the heating elements.
2. A ceramic cooker hob according to claim 1 in which the sheet metal panel is of steel.
3. A ceramic cooker hob according to claim 1 or claim 2 in which the gap between the edges of the ceramic glass hob top and the mounting panel are filled with a gap-filling adhesive.
4. A ceramic cooker hob according to any preceding claim in combination with halogen heaters positioned below the cutouts, the cutouts being so shaped and dimensioned that radiation from the heaters reaches the hob top but is not visible at regions substantially removed from the cooker ring areas.
EP89309004A 1988-09-06 1989-09-06 Ceramic cooker hobs Withdrawn EP0358469A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8820884 1988-09-06
GB8820884A GB2222453B (en) 1988-09-06 1988-09-06 Ceramic cooker hobs

Publications (1)

Publication Number Publication Date
EP0358469A1 true EP0358469A1 (en) 1990-03-14

Family

ID=10643136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89309004A Withdrawn EP0358469A1 (en) 1988-09-06 1989-09-06 Ceramic cooker hobs

Country Status (2)

Country Link
EP (1) EP0358469A1 (en)
GB (1) GB2222453B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578601A2 (en) * 1992-06-26 1994-01-12 Balay, S.A. Improvements in the support plate of the cooking ceramic glass

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407285A (en) * 1965-10-23 1968-10-22 Gen Motors Corp Domestic range with variable area cooking regions
US3674983A (en) * 1971-04-08 1972-07-04 Gen Electric Smooth surface electric cooktop
GB2021909A (en) * 1978-05-18 1979-12-05 Thielmann Geb Ag Cooking panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407285A (en) * 1965-10-23 1968-10-22 Gen Motors Corp Domestic range with variable area cooking regions
US3674983A (en) * 1971-04-08 1972-07-04 Gen Electric Smooth surface electric cooktop
GB2021909A (en) * 1978-05-18 1979-12-05 Thielmann Geb Ag Cooking panel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 322 (M-440)(2045) 18 December 1985, & JP-A-60 155829 (MATSUSHITA DENKI SANGYO K.K.) 15 August 1985, *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578601A2 (en) * 1992-06-26 1994-01-12 Balay, S.A. Improvements in the support plate of the cooking ceramic glass
EP0578601A3 (en) * 1992-06-26 1995-02-15 Balay Sa Improvements in the support plate of the cooking ceramic glass.
ES2066656A2 (en) * 1992-06-26 1995-03-01 Balay Sa Improvements in the support plate of the cooking ceramic glass.

Also Published As

Publication number Publication date
GB2222453A (en) 1990-03-07
GB8820884D0 (en) 1988-10-05
GB2222453B (en) 1992-09-09

Similar Documents

Publication Publication Date Title
US3686477A (en) Mounting system for solid plate surface heating units
US4960978A (en) Cooking appliance
US3739149A (en) Cooking appliances
US5571434A (en) Cooktop stamping having means for attaching heating elements and an integral trim ring
US3346720A (en) Infrared surface heating unit with corrugated ribbon-shaped filament
US3885128A (en) Glass-ceramic plate heating unit cast-in heat spreader
US5121738A (en) Heat radiating briquette for cooking grill
EP0200100B1 (en) Heat cooking apparatus
US3674983A (en) Smooth surface electric cooktop
US4393299A (en) Electric radiant heater unit for a glass ceramic top cooker
EP0358469A1 (en) Ceramic cooker hobs
US4717810A (en) Electric hotplate
GB2331688A (en) Fabric cover for element of a radiant electic heater
GB2230852A (en) Cooking hob
CA1262930A (en) Cooking vessel
EP0874535A2 (en) Electric heater
DE2960523D1 (en) Cooking appliance with a vitreous-ceramics cooking plate
US5994674A (en) Hob
EP0943274B1 (en) Cooking appliance
DE2351249A1 (en) Flat-topped electric cooker panel - made of high-grade steel clad underneath with boiler-ring-sized metal plates
EP0985887B1 (en) Protective device for stove tops
GB2324693A (en) Vapour barrier in a radiant electric heater
JPH0336811Y2 (en)
JPS6335291Y2 (en)
EP0694149A1 (en) A HOB and a method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GR IT NL

17P Request for examination filed

Effective date: 19900810

17Q First examination report despatched

Effective date: 19910307

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19910330

R18W Application withdrawn (corrected)

Effective date: 19910330