EP0172576B1 - Optical position indicator for rotatable selector switches of household appliances, in particular of stoves - Google Patents

Optical position indicator for rotatable selector switches of household appliances, in particular of stoves Download PDF

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Publication number
EP0172576B1
EP0172576B1 EP19850110542 EP85110542A EP0172576B1 EP 0172576 B1 EP0172576 B1 EP 0172576B1 EP 19850110542 EP19850110542 EP 19850110542 EP 85110542 A EP85110542 A EP 85110542A EP 0172576 B1 EP0172576 B1 EP 0172576B1
Authority
EP
European Patent Office
Prior art keywords
light
regulating
indicator
damping element
reflecting
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
EP19850110542
Other languages
German (de)
French (fr)
Other versions
EP0172576A3 (en
EP0172576A2 (en
Inventor
Wilhelm Lienke
Hubert Stroop
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP0172576A2 publication Critical patent/EP0172576A2/en
Publication of EP0172576A3 publication Critical patent/EP0172576A3/en
Application granted granted Critical
Publication of EP0172576B1 publication Critical patent/EP0172576B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/025—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H01H2219/0622—Light conductor only an illuminated ring around keys

Definitions

  • Optical switching stage display for rotary selector switches for household appliances, especially for stoves.
  • the invention relates to an optical switching stage display for household appliances equipped with rotary selection switches according to the preamble of claim 1 and is based on GB-A-584 163.
  • a rotary selector switch with an optical switching stage display is known.
  • a light-guiding element is arranged within the rotary knob of the rotary selector switch, which ends as a luminous point on the face of the knob.
  • the lighting device with a light change element is arranged on the stationary part of the rotary selector switch.
  • the light guide element is illuminated with different light intensities.
  • a relatively small illuminated dot indicates the different switching stage settings and the different light intensity is poorly recognizable depending on the level of the switching stage setting.
  • an optical display device of the aforementioned type in which a reflector screen is resiliently mounted on the switch axis of the rotary selector switch.
  • this reflector cover is lifted from an overrun cam and brought into an inclined position, so that the light rays emanating from the illumination source can reach the display surface visible in the front of the switch cover from the inclined reflector cover. In the off position, on the other hand, the reflector cover hides this display area.
  • the disadvantage of the above-described embodiment is that the accommodation of the reflector on the switching axis of the rotary selector switch is very complex and that the users can not see the switching level display particularly well due to the relatively small field of view of the display area.
  • a node control acknowledgment switch is known from DE-A-17 90 124, in which a respective operating state is identified by different colors. To do this, a multi-colored roller is rotated over an internal opposition lamp by means of an operating button.
  • Such a structure is, however, for arrangement in a household appliance equipped with rotary selection switches, e.g. not suitable for a stove, since switching level settings should be displayed here using different light intensities.
  • the invention has for its object to provide an optical switching stage display for household appliances, in particular stoves, in which the set switching stage is easy and clear for the operator and in which this can be achieved by relatively simple construction measures in the switch area.
  • the advantage of the embodiment according to the invention lies in the fact that the user not only sees the individual identification symbols or switching stage markings, but that he can also assess the current switching stage setting from a great distance by means of the intensity of the light or color signals. In addition, this effect is realized by means of simple and compact devices in the area of the rotary selector switches.
  • Rotary selection switches 2 are arranged in the switch panel 1 in the usual manner for setting the hotplates or the baking oven (not shown).
  • a circular, transparent display field 3 is formed in the area around the rotary selector switch 2.
  • a fixed reflection shell 5 is attached behind the switch panel 1 within a switch box 4.
  • a light receiving space 6 for accommodating an electrical light 7 is formed in the upper area of this reflection shell 5.
  • a pot-shaped unit 8 is arranged within the reflection shell 5 and is coupled to the rotary selector switch 2.
  • the cup-shaped unit 8 consists essentially of the display disc 9 and the cylindrical light change or light attenuation element 10.
  • the cup-shaped unit 8 is made of a translucent material.
  • a likewise transparent color film layer 11 is printed or glued on the cylindrical outer surface of this cup-shaped unit 8.
  • the color film layer 11 rises on the circumference of the light changing element 10, i.e. an area with a low color film coverage of the light changing element 10 is continuously increased up to an area with a large color film coverage of the light changing element 10.
  • the above-described embodiment now has the effect that when the rotary selector switch 2 is rotated, the lamp 7 is switched on and under the lamp 7, the first one Area with the small color film width.
  • the display panel 3 shows only slightly light-red illumination of the display disc 9.
  • the rotary selector switch 2 is now set to higher switching levels, a larger color film area also passes under the lamp 7 and that from the reflection bowl 5 to the front Display disc 9 reflected light now gets an increasingly intense and powerful red color drawing.
  • the user can also obtain information about the switching level currently set due to the different color intensity of the lighting.
  • the different lighting intensity in the display field 3 can be achieved by graduated material clouding of the light changing element 10.
  • an increasing translucent opening can be formed in the light changing element 10.
  • the reflection shell 5 itself can be lined with a silver or colored reflection layer and sprayed as a plastic part in a reflected material.

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Description

Optische Schaltstufenanzeige für Drehwahlschalter von Haushaltgeräten, insbesondere von Herden.Optical switching stage display for rotary selector switches for household appliances, especially for stoves.

Die Erfindung bezieht sich auf eine optische Schaltstufenanzeige für mit Drehwahlschaltern ausgestattete Haushaltsgeräte nach dem Oberbegrift des Anspruchs 1 und geht aus von der GB-A-584 163.The invention relates to an optical switching stage display for household appliances equipped with rotary selection switches according to the preamble of claim 1 and is based on GB-A-584 163.

Aus der GE-A-584 163 ist ein Drehwahlschalter mit einer optischen Schaltstufenanzeige bekannt. Innerhalb des Drehknebels des Drehwahlschalters ist ein Lichtleitelement angeordnet, welches als Leuchtpunkt an der Knebelstirnfläche endet. Am stationären Teil des Drehwahlschalters ist die Beleuchtungseinrichtung mit einem Lichtänderungselement angeordnet.From GE-A-584 163 a rotary selector switch with an optical switching stage display is known. A light-guiding element is arranged within the rotary knob of the rotary selector switch, which ends as a luminous point on the face of the knob. The lighting device with a light change element is arranged on the stationary part of the rotary selector switch.

Je nach Schaltstufeneinstellung des Drehwahlschalters wird das Lichtleitelement mit unterschiedlicher Lichtintensität beleuchtet.Depending on the switching level setting of the rotary selector switch, the light guide element is illuminated with different light intensities.

Bei dieser bekannten Ausführung zeigt ein relativ kleiner Leuchtpunkt die unterschiedlichen Schaltstufeneinstellungen an und die unterschiedliche Lichtintensität ist in Abhängigkeit von der Höhe der Schaltstufeneinstellung schlecht erkennbar.In this known embodiment, a relatively small illuminated dot indicates the different switching stage settings and the different light intensity is poorly recognizable depending on the level of the switching stage setting.

Weiterhin ist aus der DE-C-26 05 442 eine optische Anzeigevorrichtung der vorgenannten Art bekannt, bei der eine Reflektorblende federnd auf der Schalterachse des Drehwahlschalters gelagert ist. Bei Betätigung des Drehwahlschalters wird diese Reflektorblende von einem Auflaufnocken abgehoben und in eine Schrägstellung gebracht, so daß die von der Beleuchtungsquelle ausgehenden Lichtstrahlen von der schrägstehenden Reflektorblende auf die vorne in der Schaltterblende sichtbare Anzeigefläche gelangen können. In der Aus-Stellung verdeckt dagegen die Reflektorblende diese Anzeigefläche. Der Nachteil der vorbeschriebenen Ausführungsform besteht darin, daß die Unterbringung der Reflektorblende auf der Schaltachse des Drehwahlschalters sehr aufwendig ist und daß die Benutzer durch den relativ geringen Sichtbereich der Anzeigefläche die Schaltstufenanzeige nicht besonders gut erkennen können.Furthermore, from DE-C-26 05 442 an optical display device of the aforementioned type is known, in which a reflector screen is resiliently mounted on the switch axis of the rotary selector switch. When the rotary selector switch is actuated, this reflector cover is lifted from an overrun cam and brought into an inclined position, so that the light rays emanating from the illumination source can reach the display surface visible in the front of the switch cover from the inclined reflector cover. In the off position, on the other hand, the reflector cover hides this display area. The disadvantage of the above-described embodiment is that the accommodation of the reflector on the switching axis of the rotary selector switch is very complex and that the users can not see the switching level display particularly well due to the relatively small field of view of the display area.

Aus der DE-A-17 90 124 ist ein Knotenpunkt-Steuerquittierschalter bekannt, bei dem ein jeweiliger Betriebszustand durch unterschiedliche Farben kenntlich gemacht wird. Mittels eines Betätigungsknopfes wird dazu eine mehrfarbige Walze über einer innenliegenden Oppositionslampe verdreht.A node control acknowledgment switch is known from DE-A-17 90 124, in which a respective operating state is identified by different colors. To do this, a multi-colored roller is rotated over an internal opposition lamp by means of an operating button.

Ein derartiger Aufbau ist jedoch für die Anordnung in einem mit Drehwahlschaltern ausgestatteten Haushaltgerät wie z.B. einem Herd nicht geeignet, da hier durch unterschiedliche Lichtintensitäten Schaltstufeneinstellungen angezeigt werden sollen.Such a structure is, however, for arrangement in a household appliance equipped with rotary selection switches, e.g. not suitable for a stove, since switching level settings should be displayed here using different light intensities.

Der Erfindung liegt die Aufgabe zugrunde, eine optische Schaltstufenanzeige für Haushaltsgeräte, insbesondere Herde, zu schaffen, bei der für den Bedienenden die eingestellte Schaltstufe leicht und deutlich zu erkennen ist und bei der dies durch relativ einfache Baumaßnahmen im Schalterbereich realisiert werden kann.The invention has for its object to provide an optical switching stage display for household appliances, in particular stoves, in which the set switching stage is easy and clear for the operator and in which this can be achieved by relatively simple construction measures in the switch area.

Die Losung dieser Aufgabe wird durch die im Anspruch 1 gekennzeichneten Merkmale erzielt.The solution to this problem is achieved by the features characterized in claim 1.

Weitere Merkmale von Ausgestaltungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.Further features of embodiments of the invention result from the following subclaims.

Der Vorteil der erfindungsgemäßen Ausführung liegt darin, daß der Benutzer nicht nur die einzelnen Kennungssymbole oder Schaltstufenmarkierungen sieht, sondern daß er zusätzlich über die Intensität des Leucht- oder Farbsignale auch auf große Entfernung hin die augenblickliche Schaltstufeneinstellung einschätzen kann. Zudem wird dieser Effekt durch vorrichtungstechnisch einfache und kompakte Mittel im Bereich der Drehwahlschalter realisiert.The advantage of the embodiment according to the invention lies in the fact that the user not only sees the individual identification symbols or switching stage markings, but that he can also assess the current switching stage setting from a great distance by means of the intensity of the light or color signals. In addition, this effect is realized by means of simple and compact devices in the area of the rotary selector switches.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen schematisch dargestellt. Es zeigen:

  • Fig. 1 ausschnittsweise die Schalterblende eines Haushaltsherdes in perspektivischer teils weggebrochener Ansicht,
  • Fig. 2 in einem Ausschnitt die Schalterblende in Vorderansicht,
  • Fig. 3 die Schalterblende nach Fig. 2 in Schnittdarstellung von der Seite gesehen,
  • Fig. 4 eine Schnittdarstellung durch das Schalter- und Beleuchtungselement gemäß Schnittlinie aus Figur 3.
An embodiment of the invention is shown schematically in the drawings. Show it:
  • 1 a section of the switch panel of a domestic cooker in a perspective view, partly broken away,
  • 2 in a detail the switch panel in front view,
  • 3 seen the switch panel of FIG. 2 in a sectional view from the side,
  • 4 shows a sectional view through the switch and lighting element according to the section line from FIG. 3.

In der Schalterblende 1 sind in der üblichen Weise Drehwahlschalter 2 zur Einstellung der nicht näher bezeigten Kochstellen bzw. des Bakkofens angeordnet. In der ansonsten undurchsichtigen Schalterblende 1 ist im Bereich um den Drehwahlschalter 2 ein kreisförmiges, durchsichtiges Anzeigefeld 3 gebildet.Rotary selection switches 2 are arranged in the switch panel 1 in the usual manner for setting the hotplates or the baking oven (not shown). In the otherwise opaque switch panel 1, a circular, transparent display field 3 is formed in the area around the rotary selector switch 2.

Hinter der Schalterblende 1 innerhalb eines Schaltkastens 4 ist eine feststehende Reflexionsschale 5 angebracht. Im oberen Bereich dieser Reflexionsschale 5 ist ein Leuchtenaufnahmeraum 6 zur Unterbringung einer elektrischen Leuchte 7 gebildet.A fixed reflection shell 5 is attached behind the switch panel 1 within a switch box 4. In the upper area of this reflection shell 5, a light receiving space 6 for accommodating an electrical light 7 is formed.

Innerhalb der Reflexionsschale 5 ist eine topfförmige Einheit 8 angeordnet, die mit dem Drehwahlschalter 2 gekoppelt ist. Die topfförmige Einheit 8 besteht dabei im wesentlichen aus der Anzeigescheibe 9 und dem zylindrischen Lichtänderungs- bzw. Lichtdämpfungselement 10.A pot-shaped unit 8 is arranged within the reflection shell 5 and is coupled to the rotary selector switch 2. The cup-shaped unit 8 consists essentially of the display disc 9 and the cylindrical light change or light attenuation element 10.

In der gezeigten Ausführungsform besteht die topfförmige Einheit 8 aus einem lichtdurchscheinenden Material. Auf der zylindrischen Mantelfläche dieser topfförmigen Einheit 8 ist eine ebenfalls lichtdurchlässige Farbfolienschicht 11 aufgedruckt bzw. aufgeklebt. Die Farbfolienschicht 11 verläuft auf dem Umfang des Lichtänderungselementes 10 ansteigend, d.h., es wird ein Bereich mit geringer Farbfolienabdeckung kontinuierlich ansteigend bis zu einem Bereich mit großer Farbfolienabdeckung des Lichtänderungselementes 10 erhalten.In the embodiment shown, the cup-shaped unit 8 is made of a translucent material. A likewise transparent color film layer 11 is printed or glued on the cylindrical outer surface of this cup-shaped unit 8. The color film layer 11 rises on the circumference of the light changing element 10, i.e. an area with a low color film coverage of the light changing element 10 is continuously increased up to an area with a large color film coverage of the light changing element 10.

In der Funktion wirkt sich nun die vorbeschriebene Ausführung so aus, daß bei Drehung des Drehwahlschalters 2 die Leuchte 7 eingeschaltet wird und sich unter der Leuchte 7 zunächst der Bereich mit der geringen Farbfolienbreite befindet. Bei einer roten Folie z.B. zeigt sich im Anzeigefeld 3 eine nur leicht hellrot gefärbte Beleuchtung der Anzeigescheibe 9. Wird nun der Drehwahlschalter 2 auf höhere Schaltstufen gestellt, so gelangt auch ein größerer Farbfolienbereich unter die Leuchte 7 und das von der Reflexionsschale 5 nach vorne auf die Anzeigescheibe 9 reflektierte Licht bekommt nun eine immer intensivere und kräftigere rote Farbzeichnung. Dadurch kann der Benutzer neben den üblichen Schaltstellenmarkierungen auch durch die unterschiedliche Farbintensität der Beleuchtung Aufschluß über die augenblicklich eingestellte Schaltstufe erhalten.In the function, the above-described embodiment now has the effect that when the rotary selector switch 2 is rotated, the lamp 7 is switched on and under the lamp 7, the first one Area with the small color film width. In the case of a red film, for example, the display panel 3 shows only slightly light-red illumination of the display disc 9. If the rotary selector switch 2 is now set to higher switching levels, a larger color film area also passes under the lamp 7 and that from the reflection bowl 5 to the front Display disc 9 reflected light now gets an increasingly intense and powerful red color drawing. As a result, in addition to the usual switching point markings, the user can also obtain information about the switching level currently set due to the different color intensity of the lighting.

Neben der voranstehend beschriebenen Ausführungsvariante sind natürlich noch weitere Ausgestaltungsmöglichkeiten denkbar. So kann z.B. die unterschiedliche Beleuchtungsintensität im Anzeigefeld 3 durch abgestufte Materialtrübung des Lichtänderungselementes 10 erreicht werden. Weiterhin kann in dem Lichtänderungselement 10 eine ansteigend durchscheinende Öffnung gebildet sein.In addition to the embodiment variant described above, further design options are of course also conceivable. For example, the different lighting intensity in the display field 3 can be achieved by graduated material clouding of the light changing element 10. Furthermore, an increasing translucent opening can be formed in the light changing element 10.

Es ist auch nicht unbedingt nötig, für jede Schaltstelle eine separate Leuchte 7 zu verwenden, wenn man über ein Lichtleitsystem von einer zentralen Beleuchtungsquelle das Licht in die Reflexionsschale 5 einführt. Die Reflexionsschale 5 selbst kann mit einer silbernen oder auch farbigen Reflexionsschicht ausgebkleidet sowie als Kunststoffteil in einem reflektierten Material abgespritzt sein.It is also not absolutely necessary to use a separate light 7 for each switching point if the light is introduced into the reflection shell 5 from a central illumination source via a light guide system. The reflection shell 5 itself can be lined with a silver or colored reflection layer and sprayed as a plastic part in a reflected material.

Claims (4)

1. An optical graduated indicator device for domestic appliances, in particular cookers and ovens, in which a light-regulating or light-damping element (10) can be rotated in a rigid light- reflecting housing (5) by turning the selector switch (2), the rotary selector switch (2) is coupled with an illuminated indicator disk (9) situated behind the fascia panel (1), whereby the indicator disk (9) is visible through a transparent section (3) of the fascia panel (1), and a ring-shaped light-regulating or light-damping element (10) partially obstructs the passage of light between the light source (7) and the visible indicator disk (9) such that at a higher setting the intensity of the light or colour at the surface of the indicator disk (9) increases, characterised in that the light-regulating or light-damping element (10) and the indicator disk (9) form a cylindrical unit (8) which is coupled to the shaft (2') of the rotary selector switch (2).
2. An optical switch indicator device as in Claim 1, characterised in that the light-regulating or light-damping element (10) is coated with a layer of paint or other translucent substance, the light-regulating properties of which increase gradually around the perimeter of the indicator.
3. An optical switch indicator device as in Claims 1 and 2, characterised in that the light-regulating or light-damping element (10) is coated with paint or lined with foil (11) or other material along either its inner or outer surface with which the passage of light can be regulated.
4. An optical switch indicator device as in Claims 1-3, characterised in that the light-reflecting cylinder (5) is lined with reflecting foil or a coat of reflecting paint or similar, or is fabricated using reflecting material.
EP19850110542 1984-08-23 1985-08-22 Optical position indicator for rotatable selector switches of household appliances, in particular of stoves Expired - Lifetime EP0172576B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430993 DE3430993A1 (en) 1984-08-23 1984-08-23 OPTICAL LEVEL INDICATOR FOR DIAL SWITCHES OF HOUSEHOLD APPLIANCES, ESPECIALLY HERDS
DE3430993 1984-08-23

Publications (3)

Publication Number Publication Date
EP0172576A2 EP0172576A2 (en) 1986-02-26
EP0172576A3 EP0172576A3 (en) 1988-08-03
EP0172576B1 true EP0172576B1 (en) 1990-07-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850110542 Expired - Lifetime EP0172576B1 (en) 1984-08-23 1985-08-22 Optical position indicator for rotatable selector switches of household appliances, in particular of stoves

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EP (1) EP0172576B1 (en)
DE (1) DE3430993A1 (en)

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DE4414825A1 (en) * 1994-04-28 1995-11-02 Vorwerk Co Interholding Food processor with a mixing vessel and a drive for an agitator in the mixing vessel
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BRPI0702019A2 (en) * 2007-05-10 2008-12-23 Whirlpool Sa signaling device for food preparation equipment
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US8813676B2 (en) 2010-05-07 2014-08-26 Whirlpool Corporation User interface for a controller
CN103931066B (en) * 2011-06-27 2019-12-17 雷比诺有限责任公司 monolithic module with light emitting panel display
DE102014201430A1 (en) 2014-01-27 2015-07-30 BSH Hausgeräte GmbH Rotary dialing device for a household appliance with illuminated rotary knob
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Also Published As

Publication number Publication date
DE3430993A1 (en) 1986-03-06
EP0172576A3 (en) 1988-08-03
DE3430993C2 (en) 1993-04-08
EP0172576A2 (en) 1986-02-26

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