EP0052246A1 - Appareil électro-ménager - Google Patents

Appareil électro-ménager Download PDF

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Publication number
EP0052246A1
EP0052246A1 EP81108542A EP81108542A EP0052246A1 EP 0052246 A1 EP0052246 A1 EP 0052246A1 EP 81108542 A EP81108542 A EP 81108542A EP 81108542 A EP81108542 A EP 81108542A EP 0052246 A1 EP0052246 A1 EP 0052246A1
Authority
EP
European Patent Office
Prior art keywords
display
light guide
section
control panel
electrical household
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Withdrawn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
EP81108542A
Other languages
German (de)
English (en)
Inventor
Heinrich Detterbeck
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0052246A1 publication Critical patent/EP0052246A1/fr
Withdrawn legal-status Critical Current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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4293—Arrangements for programme selection, e.g. control panels; Indication of the selected programme, programme progress or other parameters of the programme, e.g. by using display panels

Definitions

  • the innovation is based on an electrical household appliance in accordance with the preamble of protection claim 1.
  • a switch panel with several switches is provided, to which optical display elements are individually assigned.
  • a single light source is used to illuminate the display elements and is optically connected to the display elements via individual rod-shaped light guides individually assigned to the display elements.
  • the innovation is based on the object of improving an electrical household appliance according to the preamble of protection claim 1 in such a way that the cost of materials for the light guide can be considerably reduced without having to accept disadvantages in terms of appearance.
  • the tapering cross-sectional shape brings about a concentration of the amount of light input in the direction of the surface of the light guide to be illuminated in the area of the display and control panel or in the direction of the light-reflecting display symbols, which are preferably attached to the back of the light guide.
  • the tapering cross-sectional shape brings about a concentration of the amount of light input in the direction of the surface of the light guide to be illuminated in the area of the display and control panel or in the direction of the light-reflecting display symbols, which are preferably attached to the back of the light guide.
  • the display and control unit shown in Fig. 1 is the display and control panel of an electric cooker, not shown.
  • the display and control panel is generally designated 1. It is placed at the top of the stove front and has a number of display and control elements, such as rotatable switch knobs 2, of which only one is shown in the installed state, display elements 3 assigned to the individual switch knobs 2, push buttons 4 of a stove timer 5 and not described the like more.
  • the switching toggles 2 are non-rotatably connected to transparent, circular display disks 6, which have display symbols in the form of numbers 1 to 9 attached to the circumference of the disk.
  • Each control element in the form of the rotary knob 2 is, for example, individually assigned to a hotplate of a hob, also not shown, with a total of four hotplates being provided.
  • the switch toggle 2 is rotatably mounted with a shaft 7 in a pivot bearing 8 and is in functional connection with a switching and control device 9 for the hot plates, which is not explained in detail.
  • the four control elements on the left in FIG. 1 are assigned to the four hot plates of the hob, while the remaining control elements are assigned to the oven of the electric cooker.
  • the front of the display and control panel 1 is formed by a transparent cover 10, which have corresponding bushings 11 for the shafts 7 of the switching knob 2.
  • the shell-shaped indicator disks are arranged on the shafts 7 or the rotary bearings 8 of the shafts.
  • the mask 12 Immediately on the mask 12 follows the section 13 of an L-shaped light guide 14, which is parallel to the front of the hearth, for example made of plexiglass.
  • the display and switch panel 1 is closed off to the rear by a cover plate 17 which has corresponding openings for the passage of the switch shafts of the operating elements.
  • the light guide 14 is formed like a strip, ie it consists of a flat, plate-like material.
  • the mask 12 has translucent recesses, for example in the form of a square or circular segment. The remaining surface of the mask is opaque.
  • point-shaped or ring-shaped, light-reflecting, for example white, display symbols 3 are printed on the back of the light guide 14.
  • the free end of the section 15 of the light guide 14 opens into a light box 19 which is arranged in the region of the side wall 16 of the electric cooker in the direction of the back side.
  • the light box 19 has a removable box part 20, on which a lamp holder 21 for a light bulb 22 is mounted.
  • the light box 19 also has a funnel-like narrowed part 23, in the free end 24 of which the free end of the light guide 14 opens.
  • a reflection coating 25 is arranged, for example printed, which ensures that the light rays emanating from the light source reach the light guide section 13 without loss from the light guide section 15.
  • the light source 22 is switched on, the light guided in the light guide 14 being reflected on the reflection surfaces or on the light-reflecting display elements 5 or on corresponding display symbols and being thrown in the direction of the front of the cooker, through the cutouts in the mask 12.
  • the tapers Section 13 of the light guide 14 from the end facing the light source 19 continuously to the free light guide end in the cross-sectional shape perpendicular to the plane of the display and control panel 1 and thus has a conical cross-sectional shape.
  • this conical cross-sectional shape is illustrated by the cross-sectional dimension a at the free end of the light guide and by the cross-sectional dimension b at the end of section 13 facing the light source 19.
  • the substantially Cross-sectional shape running parallel to the level of the display and control panel tapers continuously towards the end of the light guide.
  • the section 15 of the light guide 14 does not have a tapering cross-section, there is also the possibility of also including the section 15 of the L-shaped light guide 14 in the tapering cross-sectional shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
EP81108542A 1980-11-17 1981-10-20 Appareil électro-ménager Withdrawn EP0052246A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8030734 1980-11-17
DE8030734U 1980-11-17

Publications (1)

Publication Number Publication Date
EP0052246A1 true EP0052246A1 (fr) 1982-05-26

Family

ID=6720694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108542A Withdrawn EP0052246A1 (fr) 1980-11-17 1981-10-20 Appareil électro-ménager

Country Status (1)

Country Link
EP (1) EP0052246A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013893A (en) * 1988-09-14 1991-05-07 E.G.O. Elektro-Gerate Blanc U. Fischer Heating device
DE19737357A1 (de) * 1997-08-27 1999-03-18 Bosch Siemens Hausgeraete Gargerät mit Bildschirm
EP1403842A2 (fr) * 2002-09-27 2004-03-31 Electrolux Home Products Corporation N.V. Signalisateur optique imprimé en matière plastique transparente pour l'écran d'un appareil électroménager

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252782B (de) * 1967-10-26 Siemens-Electrogerate Gesellschaft mit beschrankter Haftung Berlin und München, München Optische Schaltstellungsanzeige fur Elektroherd
GB1212541A (en) * 1967-02-21 1970-11-18 Simplex Electric Co Ltd Improvements relating to indicator devices for cooking stoves
DE2013090A1 (de) * 1970-03-19 1971-09-30 Wolf Gmbh Richard Lichtprojektor,insbesondere fuer die endoskopie
DE2150894A1 (de) * 1971-10-13 1973-04-19 Licentia Gmbh Keilfoermiger lichtleiter aus glasklarem kunststoff oder aus glas zur gleichmaessigen beleuchtung einer langgestreckten skala

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252782B (de) * 1967-10-26 Siemens-Electrogerate Gesellschaft mit beschrankter Haftung Berlin und München, München Optische Schaltstellungsanzeige fur Elektroherd
GB1212541A (en) * 1967-02-21 1970-11-18 Simplex Electric Co Ltd Improvements relating to indicator devices for cooking stoves
DE2013090A1 (de) * 1970-03-19 1971-09-30 Wolf Gmbh Richard Lichtprojektor,insbesondere fuer die endoskopie
DE2150894A1 (de) * 1971-10-13 1973-04-19 Licentia Gmbh Keilfoermiger lichtleiter aus glasklarem kunststoff oder aus glas zur gleichmaessigen beleuchtung einer langgestreckten skala

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013893A (en) * 1988-09-14 1991-05-07 E.G.O. Elektro-Gerate Blanc U. Fischer Heating device
DE19737357A1 (de) * 1997-08-27 1999-03-18 Bosch Siemens Hausgeraete Gargerät mit Bildschirm
DE19737357C2 (de) * 1997-08-27 2001-07-12 Bsh Bosch Siemens Hausgeraete Gargerät mit als Bildschirmplatte ausgebildetem Bildschirm
EP1403842A2 (fr) * 2002-09-27 2004-03-31 Electrolux Home Products Corporation N.V. Signalisateur optique imprimé en matière plastique transparente pour l'écran d'un appareil électroménager
EP1403842A3 (fr) * 2002-09-27 2005-02-09 Electrolux Home Products Corporation N.V. Signalisateur optique imprimé en matière plastique transparente pour l'écran d'un appareil électroménager

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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

Designated state(s): AT CH DE FR GB SE

17P Request for examination filed

Effective date: 19820909

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: 19831213

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DETTERBECK, HEINRICH