EP2050113B1 - Rotable actuating device - Google Patents

Rotable actuating device Download PDF

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Publication number
EP2050113B1
EP2050113B1 EP07787033.5A EP07787033A EP2050113B1 EP 2050113 B1 EP2050113 B1 EP 2050113B1 EP 07787033 A EP07787033 A EP 07787033A EP 2050113 B1 EP2050113 B1 EP 2050113B1
Authority
EP
European Patent Office
Prior art keywords
control element
display area
light
lighting device
surface region
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.)
Not-in-force
Application number
EP07787033.5A
Other languages
German (de)
French (fr)
Other versions
EP2050113A1 (en
Inventor
Ralf Grobleben
Gerhard Nüssler
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2050113A1 publication Critical patent/EP2050113A1/en
Application granted granted Critical
Publication of EP2050113B1 publication Critical patent/EP2050113B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00Switches 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
    • H01H19/02Details
    • H01H19/025Light-emitting indicators
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/087Controlling members for hand actuation by rotary movement, e.g. hand wheels retractable; Flush control knobs
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10Details, e.g. of discs, knobs, wheels or handles
    • G05G1/105Details, e.g. of discs, knobs, wheels or handles comprising arrangements for illumination
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08Turn knobs
    • H01H2003/085Retractable turn knobs, e.g. flush mounted
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/036Light emitting elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/036Light emitting elements
    • H01H2219/039Selective or different modes of illumination
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/036Light emitting elements
    • H01H2219/042Light emitting elements replaceable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/054Optical elements
    • H01H2219/066Lens
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00Applications
    • H01H2231/012Household appliance
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
    • H01H9/162Means to facilitate removal or replacement of light-emitting elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H9/182Illumination of the symbols or distinguishing marks

Definitions

  • the invention relates to a rotary adjusting device, according to the preamble of claim 1, in particular a household appliance.
  • Known adjusting devices of this type are usually unlighted. In poor ambient light conditions, therefore, the setting state is often a bit difficult to recognize, which also takes time. In kitchens, for example, the light is mostly concentrated on the worktop and the user's eye is set to this brightness.
  • the built-in furniture front in which the control panels of household appliances such as stoves or ovens are arranged, is usually much less illuminated, especially under the edge of a kitchen countertop.
  • the document WO03 / 058659 A1 discloses a combination of a rotary actuator and a display panel according to the preamble of claim 1.
  • the publication EP 0 590 170 A1 describes an operating device which serves to operate functional units of a motor vehicle. It includes a control knob which is rotatably mounted on a lid. In an insertion of the control knob, a light guide is inserted. The light guide is used to display the respective instantaneous rotational position of the control knob. For this purpose, the light guide is inserted into the insertion opening from the visible side or front side of the control knob, so that a free end of the light guide is flush with the end face of the control knob. The light guide thus forms a position marker, which indicates the respective current rotational position of the control knob. For this purpose, a light source is provided, which in a closed by the lid housing is arranged. The light guide also symbol surfaces - such as sword wedges or step numbers - assigned - which are mounted on the lid.
  • a control device for motor vehicles which has a housing, an actuating shaft, an actuating button, as well as a light source.
  • function symbols mounted outside the actuating button can be illuminated, namely by a light emission window.
  • the light exit window is arranged eccentrically on the actuating button or the actuating axis, whereby the position of the light emission window changes when turning the actuating knob. The light can therefore be thrown in each switching position by one and the same window on the respective switching position corresponding function symbol.
  • the light exit window is located on a rear side of the actuating button.
  • Indicator is relative to the actuator, indicate the setting.
  • the beam serves as a large index mark.
  • the beam contains visible light and illuminates the highlighted surface area, which may be at least partially reflective.
  • characters or symbols characterizing the respective operating state are displayed on the surface areas, e.g. Numerals are printed, these characters being able to form the highlightable surface areas by e.g. printed with a color that is excited to emit light when irradiated with an otherwise invisible UV light.
  • the signs are applied with a reflective color which reflects a beam of visible light and thereby accentuates the character from the surface area highlighted by the illumination. The user can easily read a brightly highlighted character.
  • Various hybrid forms are possible with beams that combine different wavelengths and different surface designs.
  • the surface area to be emphasized may simply be a reflective or light-emitting surface area in which a character, e.g. a symbol or a figure is left out and can be seen on closer inspection.
  • a character e.g. a symbol or a figure is left out and can be seen on closer inspection.
  • the limited beam i. the more or less collimated, directed beam or billet emerges inclined onto the display surface from the control element and irradiates a limited spot or area on the display surface. It can also emerge more or less parallel to the display surface to the side of the actuator and the display surface, wherein a beam of visible light, a long light finger is achieved, which can facilitate the reading as a kind of large index mark.
  • the beam can also be bundled very narrow in the shape of a pointer and form a relatively small marking spot or narrow light pointer on the display surface, which can also lie across a symbol or as a marker next to a symbol.
  • the lighting device has a switch, by means of which it is set or switched off when activating or deactivating the device or the actuating element.
  • the radiation source is a light emitting diode, and arranged together with an accessible for the user to exchange electrical energy storage, for example, a button cell in the control element. The radiation source and the energy storage can be combined to form a compact, exchangeable unit.
  • Such a turntable can also be used in devices without electronics or non-electrical devices, such as gas appliances.
  • the control element In order to obstruct the view of the display surface as little as possible from lateral directions, the control element is tapered towards the front side.
  • the actuator has a handle bar or a toggle handle, which is preferably kept narrow in axial view.
  • the control element in addition to the lateral light exit point which already functions as an index mark, the control element has on its cover side an illuminated index mark, which is preferably also fed by the lighting device and can further facilitate orientation.
  • reading the operating state is the control element or at least a part thereof, for example, the front or front surface or its periphery dimly lit or lit, for which they as a light guide trained and can be powered by the lighting device.
  • the actuating element illuminates in the same color as the assigned, emphasizable surface areas and different actuating devices on a device preferably have different colors.
  • the Figures 1 and 2 show a section of a control panel 12 made of plastic, which forms part of the device housing of a household stove, not shown, with a rotary adjusting device 10 for adjusting the heating power of a cooking zone of a cooktop, not shown.
  • the control panel 12 has a flat, vertical front panel 14 with a circular opening 16 to the rear of a guide cylinder 18 connects.
  • This is a rotatable actuator in the form of a rotatable about a horizontal axis, flat, ie low over the control panel 12 projecting knob 20 with a cylindrical peripheral wall 22 rotatably guided and axially displaceable.
  • the known countersink mechanism is omitted for simplicity.
  • the rotary knob 20 shown in the extended position has the front side of a removable cover 24 inserted into the peripheral wall 22.
  • the extendable part of the peripheral wall 22 has an axially parallel extending slot-shaped aperture into which a light guide 26 is inserted in the form of an axially and radially extending flat disc which closes the gap and is flush with the outside of the peripheral wall 22.
  • the lid 24 also has a radially outwardly extending radial slot into which the light guide 26 engages to form an illuminated front index mark 28 from the edge.
  • the cover 24 carries on its back a voltage applied to the light guide 26 light emitting diode 30, a switch 32 and an electric battery in the form of a button cell 34, which together with the light guide 26 form a lighting device.
  • the button cell 34 is removable after removal of the lid 24 by the user.
  • the switch 32 cooperates in the retracted state of the knob 20 with a support, not shown, in the device housing to turn off the lighting device.
  • the light-emitting diode 30 emits a visible light which emerges from the rotary knob 20 via the light guide 26 as a slightly broadening light beam 38 in the radial direction and has an on the display surface in Fig.1 Illuminated by broken lines 40 indicated surface area or sector with a light finger approximately parallel to the surface. From this, the respectively irradiated digit 36 of the surrounding imprinting stands out in a reflective manner. Also, the index mark 28 formed by the light guide 26 is illuminated.
  • FIGS. 3 and 4 show a section of a control panel 312 made of plastic, which forms part of the device housing of a household stove, not shown, with a rotary adjusting device 310 for adjusting the heating power of a cooking zone Cooktop.
  • the control panel 312 has a planar vertical front panel 314 with an opening 316 through which a horizontal switch shaft 318 extends. Then an actuator in the form of a rotatable about a horizontal axis, low rotary knob 320 is attached.
  • the power supply of the light emitting diode 330 is carried by the interior of the electrical appliance via a slip ring connection and a switch, which are not shown here.
  • the end wall 346 has one, approximately in a plane defined by the axis extending slot-shaped opening into which a light guide 326 is inserted, which closes the slot and terminates flush with the outside of the end wall 346.
  • the top wall 324 has a radial slot extending peripherally from the edge toward the center into which the light guide 326 engages to form an illuminated front index mark 328.
  • a the entire front surface of the knob 320 overlapping, translucent optical fiber disk 341 is placed, which is also brought from the light guide 326 via the, visible through them index mark 328, brought to a faint glow.
  • the dim glowing optical fiber disk 341 has the purpose of allowing the user to more quickly identify the highlighted surface area of the display surface to the rotary knob 320 in poor room lighting conditions, increasing the safety and speed of reading the operating condition and thus ease of use.
  • the control panel 312 near part of the light guide 328 is formed as a lens 350, which is illuminated by the light-emitting diode 330 with visible light and the light, for the most part as a collimated light beam 338 obliquely backwards, where he on the surface forming a display surface the control panel 312 an oval, in fig3 irradiated in a dashed line light spot 340, in which a symbol in the form of a numeral 336 is printed with a reflective color.
  • numerals 336 characterizing the various settings are circular around the Rotary axis of the rotary knob 320 arranged around.
  • an ultraviolet light emitting diode may alternatively be used.
  • the numbers of the display surface and the cover-side optical disk in this case have a material that is excited by ultraviolet light to emit visible light.
  • the beam can be guided in various ways in the control element, for example in a light guide or beam guide.
  • a light guide or beam guide may be mirrored in the top wall area to the rear in order to radiate the cramped space proportions steeper on the display surface.

Description

Die Erfindung betrifft eine Drehstelleinrichtung, gemäß dem Oberbegriff des Anspruches 1, insbesondere eines Haushaltsgerätes.The invention relates to a rotary adjusting device, according to the preamble of claim 1, in particular a household appliance.

Bekannte Stelleinrichtungen dieser Art sind meist unbeleuchtet. Bei schlechten Umgebungslichtverhältnissen ist daher der Einstellzustand oft etwas mühsam zu erkennen, was auch Zeit braucht. In Küchen z.B. ist das Licht meist auf die Arbeitsplatte konzentriert und das Auge des Benutzers ist auf diese Helligkeit eingestellt. Die Einbaumöbelfrontseite, in der die Bedienblenden von Haushaltsgeräten wie Herden oder Backöfen angeordnet sind, ist meist wesentlich schwächer beleuchtet, insbesondere auch unter dem Rand einer Küchenarbeitsplatte. Das Dokument WO03/058659 A1 offenbart eine Kombination einer Drehstelleinrichtung und einer Anzeigefläche gemäß dem Oberbegriff des Anspruchs 1. Aus der Deutschen Offenlegungsschrift DE 102 56 183 A1 sind Drehsteller mit einem als Ganzes mit sichtbarem Licht durchleuchteten Symbolring aus Lichtdurchlässigem Material als Anzeigefläche bekannt und als sehr aufwendig in der Fertigung beschrieben. Zur Behebung dieses Nachteils wird dort vorgeschlagen ein Leuchtelement mindestens zum Teil im Stellelement so anzuordnen, das es die ganze Anzeigefläche um das Stellelement herum mit Auflicht beleuchtet. Dies senkt zwar den Fertigungsaufwand, beseitigt Jedoch nicht den Nachteil, daß bei allen Drehstellern dieser Art die Ablesung des Einstellzustandes dadurch etwas erschwert ist, daß der Benutzer ziemlich genau hinschauen muß, um zu erkennen auf welche Stelle der als ganzes beleuchteten Anzeigefläche eine Indexmarke des Stellelements weist.Known adjusting devices of this type are usually unlighted. In poor ambient light conditions, therefore, the setting state is often a bit difficult to recognize, which also takes time. In kitchens, for example, the light is mostly concentrated on the worktop and the user's eye is set to this brightness. The built-in furniture front, in which the control panels of household appliances such as stoves or ovens are arranged, is usually much less illuminated, especially under the edge of a kitchen countertop. The document WO03 / 058659 A1 discloses a combination of a rotary actuator and a display panel according to the preamble of claim 1. From the German Offenlegungsschrift DE 102 56 183 A1 Turntable are known with a whole illuminated with visible light symbol ring made of translucent material as a display surface and described as very expensive to manufacture. To remedy this disadvantage, it is proposed there to arrange a luminous element at least partially in the control element so that it illuminates the entire display area around the actuator with incident light. Although this lowers the production cost, but does not eliminate the disadvantage that the read-off of the setting state is somewhat more difficult in all turntables of this type, that the user must look pretty closely to recognize which point of the illuminated as a whole display area an index mark of the control element has.

Die Druckschrift EP 0 590 170 A1 beschreibt eine Bedieneinrichtung, welche zum Bedienen von Funktionseinheiten eines Kraftfahrzeugs dient. Sie beinhaltet einen Bedienknopf, welcher an einem Deckel drehbar gelagert ist. In eine Einstecköffnung des Bedienknopfs ist ein Lichtleiter eingelassen. Der Lichtleiter dient zum Anzeigen der jeweils augenblicklichen Drehstellung des Bedienknopfes. Dazu ist der Lichtleiter in die Einstecköffnung von der Sichtseite bzw. Stirnseite des Bedienknopfes her eingesteckt, so dass ein freies Ende des Lichtleiters mit der Stirnseite des Bedienknopfes bündig abschließt. Der Lichtleiter bildet somit eine Stellungsmarkierung, welche die jeweils aktuelle Drehstellung des Bedienknopfes anzeigt. Zu diesem Zwecke ist auch eine Lichtquelle bereitgestellt, welche in einem durch den Deckel verschlossenen Gehäuse angeordnet ist. Dem Lichtleiter sind außerdem Symbolflächen - etwa Schwertkeile oder Stufennummerierungen - zugeordnet, welche auf dem Deckel angebracht sind.The publication EP 0 590 170 A1 describes an operating device which serves to operate functional units of a motor vehicle. It includes a control knob which is rotatably mounted on a lid. In an insertion of the control knob, a light guide is inserted. The light guide is used to display the respective instantaneous rotational position of the control knob. For this purpose, the light guide is inserted into the insertion opening from the visible side or front side of the control knob, so that a free end of the light guide is flush with the end face of the control knob. The light guide thus forms a position marker, which indicates the respective current rotational position of the control knob. For this purpose, a light source is provided, which in a closed by the lid housing is arranged. The light guide also symbol surfaces - such as sword wedges or step numbers - assigned - which are mounted on the lid.

Aus dem Dokument DE 28 38 196 A1 ist ebenfalls eine Bedieneinrichtung für Kraftfahrzeuge bekannt, welche ein Gehäuse, eine Betätigungsachse, einen Betätigungsknopf, wie auch eine Lichtquelle aufweist. Mithilfe der Lichtquelle können außerhalb des Betätigungsknopfes angebrachte Funktionssymbole beleuchtet werden, nämlich durch ein Lichtaustrittsfenster. Das Lichtaustrittsfenster ist an dem Betätigungsknopf oder aber der Betätigungsachse exzentrisch angeordnet, wodurch sich die Lage des Lichtaustrittsfensters beim Drehen des Betätigungsknopfes verändert. Das Licht kann deshalb in jeder Schaltstellung durch ein und dasselbe Fenster auf das der jeweiligen Schaltstellung entsprechende Funktionssymbol geworfen werden. Das Lichtaustrittsfenster befindet sich dabei an einer Rückseite des Betätigungsknopfes.
Der Erfindung liegt die Aufgabe zugrunde Nachteile des bekannten Standes der Technik zu vermeiden oder zu vermindern und insbesondere die Bedienungsfreundlichkeit zu erhöhen.
From the document DE 28 38 196 A1 Also, a control device for motor vehicles is known, which has a housing, an actuating shaft, an actuating button, as well as a light source. By means of the light source, function symbols mounted outside the actuating button can be illuminated, namely by a light emission window. The light exit window is arranged eccentrically on the actuating button or the actuating axis, whereby the position of the light emission window changes when turning the actuating knob. The light can therefore be thrown in each switching position by one and the same window on the respective switching position corresponding function symbol. The light exit window is located on a rear side of the actuating button.
The invention has for its object to avoid or reduce disadvantages of the prior art and in particular to increase the ease of use.

Diese Aufgabe wird gelöst durch eine Kombination einer Drehstelleinrichtung und einer Anzeigefläche mit der Merkmalskombination des Anspruches 1. Diese hinsichtlich des Fertigungsaufwandes günstige Lösung, bei der mit nur einer Strahlenquelle verschiedene Oberflächenbereiche hervorgehoben werden können, hat den wesentlichen Vorteil dass der Einstellzustand deutlich und eindeutig angezeigt wird und besonders leicht und schnell erkennbar ist, auch auf große Entfernungen. Dem erfahrenen Benutzer kann schon die Richtung in die der Lichtschein auf derThis object is achieved by a combination of a rotary adjusting device and a display surface with the combination of features of claim 1. These favorable in terms of manufacturing effort solution in which only one radiation source different surface areas can be highlighted, has the significant advantage that the setting state is clearly and clearly displayed and is particularly easy and quick to recognize, even at long distances. The experienced user can already see the direction in which the light on the

Anzeigeeinrichtung relativ zum Stellelement liegt, die Einstellung anzeigen. Der Strahl dient als große Indexmarke.Indicator is relative to the actuator, indicate the setting. The beam serves as a large index mark.

Der Strahl enthält sichtbares Licht und beleuchtet den hervorzuhebenden Oberflächenbereich, der mindestens zum Teil reflektierend sein kann. Zweckmäßigerweise sind auf die Oberflächenbereiche den jeweiligen Betriebszustand kennzeichnende Zeichen bzw. Symbole z.B. Ziffern aufgedruckt, wobei diese Zeichen die hervorhebbaren Oberflächenbereiche bilden können, indem sie z.B. mit einer Farbe gedruckt sind, die bei Bestrahlung mit einem sonst unsichtbaren UV-Licht zur Lichtemission angeregt wird. Die Zeichen sind mit einer reflektierenden Farbe aufgebracht, die einen Strahl sichtbaren Lichts reflektiert und dadurch das Zeichen aus dem durch die Beleuchtung hervorgehobenen Oberflächenbereich noch besonders hervorhebt. Der Benutzer kann ein jeweils leuchtend hervorgehobenes Zeichen leicht ablesen. Es sind verschiedene Mischformen möglich mit Strahlen, die unterschiedliche Wellenlängen kombinieren und unterschiedlichen Oberflächengestaltungen. So kann auch der hervorzuhebende Oberflächenbereich einfach ein reflektierender oder lichtemittierender Oberflächenbereich sein, in dem ein Zeichen, z.B. ein Symbol oder eine Ziffer ausgespart und bei näherem Hinsehen erkennbar ist. Für die Schnelle Erkennbarkeit ist wichtig, dass der Strahl einen Farbwechsel zwischen dem bestrahlten und dem unbestrahlten Zustand des Oberflächenbereichs bewirkt.The beam contains visible light and illuminates the highlighted surface area, which may be at least partially reflective. Conveniently, characters or symbols characterizing the respective operating state are displayed on the surface areas, e.g. Numerals are printed, these characters being able to form the highlightable surface areas by e.g. printed with a color that is excited to emit light when irradiated with an otherwise invisible UV light. The signs are applied with a reflective color which reflects a beam of visible light and thereby accentuates the character from the surface area highlighted by the illumination. The user can easily read a brightly highlighted character. Various hybrid forms are possible with beams that combine different wavelengths and different surface designs. Thus, the surface area to be emphasized may simply be a reflective or light-emitting surface area in which a character, e.g. a symbol or a figure is left out and can be seen on closer inspection. For quick recognition, it is important that the beam causes a color change between the irradiated and unirradiated state of the surface area.

Der begrenzte Strahl, d.h. der mehr oder weniger gebündelte, gerichtete Strahl bzw. Schein tritt auf die Anzeigefläche hin geneigt aus dem Stellelement aus und bestrahlt auf der Anzeigefläche einen begrenzten Fleck bzw. Bereich. Er kann auch mehr oder weniger parallel zur Anzeigefläche zur Seite aus dem Stellelement austreten und die Anzeigefläche streifen, wobei bei einem Strahl sichtbaren Lichts ein langer Lichtfinger erzielt wird, der die Ablesung als eine Art großer Indexmarke erleichtern kann. Der Strahl kann auch sehr schmal zeigerförmig gebündelt sein und einen relativ kleinen Markierungsfleck oder schmalen Lichtzeiger auf der Anzeigefläche bilden, der auch quer über ein Zeichen bzw. Symbol liegen oder als Markierung neben einem Symbol liegen kann.The limited beam, i. the more or less collimated, directed beam or billet emerges inclined onto the display surface from the control element and irradiates a limited spot or area on the display surface. It can also emerge more or less parallel to the display surface to the side of the actuator and the display surface, wherein a beam of visible light, a long light finger is achieved, which can facilitate the reading as a kind of large index mark. The beam can also be bundled very narrow in the shape of a pointer and form a relatively small marking spot or narrow light pointer on the display surface, which can also lie across a symbol or as a marker next to a symbol.

Für eine gute Hervorhebung der Einstellung kann es auch zweckmäßig sein, die Strahlenquelle gepulst zu betreiben, was einerseits Aufmerksamkeit bewirkt und andererseits Strom spart. Die Leuchteinrichtung weist einen Schalter auf, mittels dem sie beim Aktivieren oder Deaktivieren des Gerätes oder des Stellelements in Betrieb gesetzt oder ausgeschaltet wird. Ebenfalls zur Verringerung des Fertigungsaufwandes ist die Strahlenquelle eine Leuchtdiode, und zusammen mit einem für den Benutzer zum Austausch zugänglichen elektrischen Energiespeicher z.B. einer Knopfzelle im Stellelement angeordnet. Die Strahlenquelle und der Energiespeicher können zu einer kompakten, austauschbaren Einheit zusammengefasst sein. Hierdurch wird eine, insbesondere bei versenkbaren Stellelementen aufwendige und anfällige Stromversorgung vom Gerät her z.B. über einen Schleifring oder eine Versorgung von einer im Gerät fest installierten Strahlenquelle über einen Strahlenleiter in das Stellelement vermieden. Ein solcher Drehsteller kann auch bei Geräten ohne Elektronik oder nichtelektrischen Geräten, z.B. Gasgeräten eingesetzt werden.For a good emphasis on the setting, it may also be appropriate to operate the radiation source pulsed, which on the one hand causes attention and on the other hand saves electricity. The lighting device has a switch, by means of which it is set or switched off when activating or deactivating the device or the actuating element. Also to reduce manufacturing costs, the radiation source is a light emitting diode, and arranged together with an accessible for the user to exchange electrical energy storage, for example, a button cell in the control element. The radiation source and the energy storage can be combined to form a compact, exchangeable unit. As a result, a costly and vulnerable especially in retractable actuators power supply from the device, for example, via a slip ring or a supply of a permanently installed in the device radiation source via a beam guide in the actuator can be avoided. Such a turntable can also be used in devices without electronics or non-electrical devices, such as gas appliances.

Um die Sicht auf die Anzeigefläche auch aus seitlichen Richtungen möglichst wenig zu behindern ist das Stellelement zur Frontseite hin verjüngt ausgebildet. Aus dem gleichen Grund weist das Stellelement einen Griffsteg bzw. einen Knebelgriff auf, der vorzugsweise axial gesehen schmal gehalten wird.In order to obstruct the view of the display surface as little as possible from lateral directions, the control element is tapered towards the front side. For the same reason, the actuator has a handle bar or a toggle handle, which is preferably kept narrow in axial view.

Vorteilhafterweise besitzt das Stellelement zusätzlich zu der schon als Indexmarke fungierenden seitlichen Lichtaustrittsstelle auf seiner Deckseite eine beleuchtete Indexmarke, die vorzugsweise auch von der Leuchteinrichtung gespeist wird und die Orientierung weiter erleichtern kann. Zur schnelleren Orientierung und schnelleren Ablesung des Betriebszustandes ist das Stellelement oder mindestens ein Teil desselben, Ablesung des Betriebszustandes ist das Stellelement oder mindestens ein Teil desselben, z.B dessen Frontseite bzw. Frontfläche oder deren Umfang schwach beleuchtet bzw. zum Leuchten gebracht, wozu sie als Lichtleiter ausgebildet und von der Leuchteinrichtung gespeist sein kann. Bei schlechten Raumlichtverhältnissen kann durch eine solche Hervorhebung der Kontur des Stellelementes die Zuordnung des leuchtend hervorgehobenen Oberflächenbereichs der Anzeigefläche zum Stellelement und damit der Stellwinkel leichter und schneller erfassbar sein, was die schnelle Erkennung des Betriebszustandes erleichtert. Zur weiteren Verbesserung der Orientierung leuchtet das Stellelement dabei in der gleichen Farbe wie die zugeordneten, hervorhebbaren Oberflächenbereiche und weisen verschiedene Stelleinrichtungen an einem Gerät vorzugsweise unterschiedliche Farben auf.Advantageously, in addition to the lateral light exit point which already functions as an index mark, the control element has on its cover side an illuminated index mark, which is preferably also fed by the lighting device and can further facilitate orientation. For faster orientation and faster reading of the operating state is the control element or at least a part thereof, reading the operating state is the control element or at least a part thereof, for example, the front or front surface or its periphery dimly lit or lit, for which they as a light guide trained and can be powered by the lighting device. In poor room lighting conditions can be such an emphasis on the contour of the control element, the assignment of the bright highlighted surface area of the display surface to the actuator and thus the angle can be detected more easily and faster, which facilitates the quick recognition of the operating state. In order to further improve the orientation, the actuating element illuminates in the same color as the assigned, emphasizable surface areas and different actuating devices on a device preferably have different colors.

Im folgenden wird die Erfindung anhand schematischer Zeichnungen an Ausführungsbeispielen näher erläutert.In the following the invention will be explained in more detail with reference to schematic drawings of exemplary embodiments.

Es zeigt:

Fig. 1
in einer perspektivischen Darstellung einen Ausschnitt einer Bedienblende eines Küchenherdes mit einer Drehstelleinrichtung;
Fig. 2
ausschnittsweise einen Schnitt durch die Drehstelleinrichtung gemäß Fig. 1 in einer horizontalen Ebene entlang der Drehachse;
Fig. 3
eine ausschnittsweise Frontansicht einer Bedienblende eines Küchenherdes mit einer abgewandelten Drehstelleinrichtung und
Fig. 4
einem Schnitt im Wesentlichen entlang der Linie IV-IV in Fig. 3.
It shows:
Fig. 1
in a perspective view a section of a control panel of a cooker with a rotary adjusting device;
Fig. 2
partially a section through the rotary adjusting device according to Fig. 1 in a horizontal plane along the axis of rotation;
Fig. 3
a partial front view of a control panel of a cooker with a modified rotary adjustment and
Fig. 4
a section substantially along the line IV-IV in Fig. 3 ,

Die Figuren 1 und 2 zeigen einen Ausschnitt einer Bedienblende 12 aus Kunststoff, die einen Teil des Gerätegehäuses eines nicht dargestellten Haushalts-Herdes bildet mit einer Drehstelleinrichtung 10 zur Einstellung der Heizleistung einer Kochzone eines nicht dargestellten Kochfeldes. Die Bedienblende 12 besitzt eine ebene, vertikale Frontplatte 14 mit einer kreisrunden Öffnung 16 an die nach hinten ein Führungszylinder 18 anschließt. Darin ist ein drehbares Stellelement in Form eines, um eine horizontale Achse drehbaren, flachen, d.h. niedrig über die Bedienblende 12 vorspringenden Drehknopfes 20 mit einer zylindrischen Umfangswand 22 drehbar und axial verschiebbar geführt. Der bekannte Versenkmechanismus ist zur Vereinfachung weggelassen. Der in der ausgefahrenen Stellung dargestellte Drehknopf 20 besitzt frontseitig einen in die Umfangswand 22 abnehmbar eingesetzten Deckel 24. Der ausfahrbare Teil der Umfangswand 22 besitzt eine sich achsparallel erstreckende schlitzförmige Durchbrechung, in die ein Lichtleiter 26 in Form einer sich axial und radial erstreckenden flachen Scheibe eingesetzt ist, die den Spalt verschließt und mit der Außenseite der Umfangswand 22 bündig abschließt. Der Deckel 24 besitzt ebenfalls vom Rand her einen sich ein Stück zur Mitte hin erstreckenden radialen Schlitz in den der Lichtleiter 26 eingreift, um eine beleuchtete frontseitige Indexmarke 28 zu bilden. Der Deckel 24 trägt an seiner Rückseite eine an dem Lichtleiter 26 anliegende Leuchtdiode 30, einen Schalter 32 und eine elektrische Batterie in Form einer Knopfzelle 34, die zusammen mit dem Lichtleiter 26 eine Leuchteinrichtung bilden. Die Knopfzelle 34 ist nach Abnehmen des Deckels 24 durch den Benutzer austauschbar. Der Schalter 32 wirkt im versenkten Zustand des Drehknopfes 20 mit einer nicht dargestellten Abstützung im Gerätegehäuse zusammen, um die Leuchteinrichtung auszuschalten.The Figures 1 and 2 show a section of a control panel 12 made of plastic, which forms part of the device housing of a household stove, not shown, with a rotary adjusting device 10 for adjusting the heating power of a cooking zone of a cooktop, not shown. The control panel 12 has a flat, vertical front panel 14 with a circular opening 16 to the rear of a guide cylinder 18 connects. This is a rotatable actuator in the form of a rotatable about a horizontal axis, flat, ie low over the control panel 12 projecting knob 20 with a cylindrical peripheral wall 22 rotatably guided and axially displaceable. The known countersink mechanism is omitted for simplicity. The rotary knob 20 shown in the extended position has the front side of a removable cover 24 inserted into the peripheral wall 22. The extendable part of the peripheral wall 22 has an axially parallel extending slot-shaped aperture into which a light guide 26 is inserted in the form of an axially and radially extending flat disc which closes the gap and is flush with the outside of the peripheral wall 22. The lid 24 also has a radially outwardly extending radial slot into which the light guide 26 engages to form an illuminated front index mark 28 from the edge. The cover 24 carries on its back a voltage applied to the light guide 26 light emitting diode 30, a switch 32 and an electric battery in the form of a button cell 34, which together with the light guide 26 form a lighting device. The button cell 34 is removable after removal of the lid 24 by the user. The switch 32 cooperates in the retracted state of the knob 20 with a support, not shown, in the device housing to turn off the lighting device.

In einem radialen Abstand von der Umfangswand 22 des Drehknopfes 20 sind auf die als Anzeigefläche dienende Oberfläche der Frontplatte 14 des Gerätes in einem Kreis um die Drehachse Zeichen bzw. Symbole in Form von Ziffern 36 mit reflektierender Farbe aufgedruckt. Die Leuchtdiode 30 sendet ein sichtbares Licht aus, das über den Lichtleiter 26 als in radialer Richtung sich leicht verbreiternder Lichtstrahl 38 aus dem Drehknopf 20 austritt und auf der Anzeigefläche einen in Fig.1 durch unterbrochene Linien 40 angedeuteten Oberflächenbereich bzw. Sektor mit einem zur Oberfläche etwa parallelen Lichtfinger beleuchtet. Daraus sticht die jeweils bestrahlte Ziffer 36 der Umfeldbedruckung reflektierend hervor. Auch die Indexmarke 28, die vom Lichtleiter 26 gebildet wird, ist beleuchtet.At a radial distance from the peripheral wall 22 of the rotary knob 20 are printed on the serving as a display surface surface of the front panel 14 of the device in a circle around the axis of rotation signs or symbols in the form of numerals 36 with reflective color. The light-emitting diode 30 emits a visible light which emerges from the rotary knob 20 via the light guide 26 as a slightly broadening light beam 38 in the radial direction and has an on the display surface in Fig.1 Illuminated by broken lines 40 indicated surface area or sector with a light finger approximately parallel to the surface. From this, the respectively irradiated digit 36 of the surrounding imprinting stands out in a reflective manner. Also, the index mark 28 formed by the light guide 26 is illuminated.

Die Figuren 3 und 4 zeigen einen Ausschnitt einer Bedienblende 312 aus Kunststoff, die einen Teil des Gerätegehäuses eines nicht dargestellten Haushalts-Herdes bildet mit einer Drehstelleinrichtung 310 zur Einstellung der Heizleistung einer Kochzone eines Kochfeldes. Die Bedienblende 312 besitzt eine ebene vertikale Frontplatte 314 mit einer Öffnung 316 durch die sich eine horizontale Schalterwelle 318 erstreckt. Darauf ist ein Stellelement in Form eines, um eine horizontale Achse drehbaren, niedrigen Drehknebels 320 befestigt. Dieser besitzt zur Bildung eines schmalen Griffsteges zwei, der Drehachse benachbarte, parallele Seitenwände 342 und 344, die sich trapezförmig zur Frontseite hin verjüngen und an ihren Seitenkanten durch eine halbzylindrische Stirnwand 346 und eine halbzylindrische Rückwand 348 miteinander verbunden sind. Der so gebildete schmale Innenraum, in dem eine Leuchtdiode 330 angeordnet ist, erstreckt sich nach zwei gegenüberliegenden Seiten jeweils gleich weit von der Drehachse weg und wird von einer festen, frontseitigen Deckwand 324 verschlossen. Die Stromversorgung der Leuchtdiode 330 erfolgt vom Inneren des Elektrogerätes über eine Schleifringverbindung und einen Schalter, die hier nicht dargestellt sind.The FIGS. 3 and 4 show a section of a control panel 312 made of plastic, which forms part of the device housing of a household stove, not shown, with a rotary adjusting device 310 for adjusting the heating power of a cooking zone Cooktop. The control panel 312 has a planar vertical front panel 314 with an opening 316 through which a horizontal switch shaft 318 extends. Then an actuator in the form of a rotatable about a horizontal axis, low rotary knob 320 is attached. This has to form a narrow grip bar two, the axis of rotation adjacent, parallel side walls 342 and 344, which taper in a trapezoidal shape towards the front and at their side edges by a semi-cylindrical end wall 346 and a semi-cylindrical rear wall 348 are interconnected. The thus formed narrow interior, in which a light-emitting diode 330 is arranged, extends to two opposite sides each equidistant from the axis of rotation and is closed by a solid, front-side cover wall 324. The power supply of the light emitting diode 330 is carried by the interior of the electrical appliance via a slip ring connection and a switch, which are not shown here.

Die Stirnwand 346 besitzt eine, sich etwa in einer durch die Achse gelegten Ebene erstreckende schlitzförmige Durchbrechung, in die ein Lichtleiter 326 eingesetzt ist, der den Schlitz verschließt und mit der Außenseite der Stirnwand 346 bündig abschließt. Die Deckwand 324 besitzt einen sich vom Rand her ein Stück zur Mitte hin erstreckenden radialen Schlitz in den der Lichtleiter 326 eingreift, um eine beleuchtete frontseitige Indexmarke 328 zu bilden. Auf dem Deckel 324 ist eine die ganze Frontfläche des Drehknopfes 320 überdeckende, durchscheinende Lichtleiterscheibe 341 aufgesetzt, die ebenfalls vom Lichtleiter 326 über die, durch sie hindurch sichtbare Indexmarke 328 gespeist, zu einem schwachen Leuchten gebracht wird. Die schwach leuchtende Lichtleiterscheibe 341 hat den Sinn, dem Benutzer bei schlechten Raumlichtverhältnissen schneller die Zuordnung des hervorgehobenem Oberflächenbereichs der Anzeigefläche zum Drehknebel 320 erkennen zu lassen, was die Sicherheit und Schnelligkeit der Ablesung des Betriebszustandes und damit die Bedienungsfreundlichkeit erhöht.The end wall 346 has one, approximately in a plane defined by the axis extending slot-shaped opening into which a light guide 326 is inserted, which closes the slot and terminates flush with the outside of the end wall 346. The top wall 324 has a radial slot extending peripherally from the edge toward the center into which the light guide 326 engages to form an illuminated front index mark 328. On the lid 324, a the entire front surface of the knob 320 overlapping, translucent optical fiber disk 341 is placed, which is also brought from the light guide 326 via the, visible through them index mark 328, brought to a faint glow. The dim glowing optical fiber disk 341 has the purpose of allowing the user to more quickly identify the highlighted surface area of the display surface to the rotary knob 320 in poor room lighting conditions, increasing the safety and speed of reading the operating condition and thus ease of use.

Der der Bedienblende 312 nahe Teil des Lichtleiters 328 ist als Linse 350 ausgebildet, die von der Leuchtdiode 330 mit sichtbarem Licht angestrahlt wird und das Licht, zum größten Teil als gebündelten Lichtstrahl 338 schräg nach hinten ausstrahlt, wo er auf der, eine Anzeigefläche bildenden Oberfläche der Bedienblende 312 einen ovalen, in Fig3 in unterbrochenen Linien angedeuteten Lichtfleck 340 bestrahlt, in dem ein Symbol in Form einer Ziffer 336 mit einer reflektierenden Farbe aufgedruckt ist. Mehrere, die verschiedenen Einstellungen kennzeichnende Ziffern 336 sind kreisförmig um die Drehachse des Drehknebels 320 herum angeordnet.The control panel 312 near part of the light guide 328 is formed as a lens 350, which is illuminated by the light-emitting diode 330 with visible light and the light, for the most part as a collimated light beam 338 obliquely backwards, where he on the surface forming a display surface the control panel 312 an oval, in fig3 irradiated in a dashed line light spot 340, in which a symbol in the form of a numeral 336 is printed with a reflective color. Several numerals 336 characterizing the various settings are circular around the Rotary axis of the rotary knob 320 arranged around.

An Stelle der sichtbares Licht abgebenden Leuchtdiode 330 kann alternativ auch eine Ultraviolett-Leuchtdiode verwendet werden. Die Ziffern der Anzeigefläche und die deckseitige Lichtleiterscheibe weisen in diesem Fall ein Material auf, das durch ultraviolettes Licht zur Aussendung sichtbaren Lichts angeregt wird.Instead of the visible light emitting diode 330, an ultraviolet light emitting diode may alternatively be used. The numbers of the display surface and the cover-side optical disk in this case have a material that is excited by ultraviolet light to emit visible light.

Der Strahl kann auf verschiedene Arten im Stellelement z.B. in einem Lichtleiter bzw. Strahlenleiter geführt sein. Z.B. kann er im Deckwandbereich nach hinten gespiegelt sein um trotzt der beengten Raumverhältnisse steiler auf die Anzeigefläche zu strahlen.The beam can be guided in various ways in the control element, for example in a light guide or beam guide. For example, it may be mirrored in the top wall area to the rear in order to radiate the cramped space proportions steeper on the display surface.

Bezugszeichen:Reference numerals:

1010
DrehstelleinrichtungRotary actuator
1212
Bedienblendecontrol panel
1414
Frontplattefront panel
1616
Öffnungopening
1818
FührugszylinderFührugszylinder
2020
Drehknopfknob
2222
Umfangswandperipheral wall
2424
Deckelcover
2626
Lichtleiteroptical fiber
2828
Indexmarkebrand Index
3030
Leuchtdiodeled
3232
Schalterswitch
3434
Knopfzellebutton cell
3636
Ziffer, Zeichen, SymbolNumeral, sign, symbol
3838
Lichtstrahlbeam of light
4040
Lichtfingerlight finger
310310
DrehstelleinrichtungRotary actuator
312312
Bedienblendecontrol panel
314314
Frontplattefront panel
316316
Öffnungopening
318318
Schalterwelleswitch shaft
320320
Drehknebelrotary knob
324324
Deckwandtop wall
326326
Lichtleiteroptical fiber
328328
Indexmarkebrand Index
330330
Leuchtdiodeled
336336
Ziffer, Zeichen, SymbolNumeral, sign, symbol
338338
Lichtstrahlbeam of light
340340
Lichtflecklight spot
341341
LichtleiterscheibeLight guide plate
342342
SeitenwandSide wall
344344
SeitenwandSide wall
346346
Stirnwandbulkhead
348348
Rückwandrear wall
350350
Linselens

Claims (5)

  1. Combination of a rotary actuating device (10; 310) and a display area (12; 312), in particular of a domestic appliance, the rotary actuating device (10; 310) having a control element (20; 320) that can rotate about an axis and that projects above an assigned display area (12; 312) serving to indicate the operating state selected and has at least part of a lighting device (28, 30, 32, 34; 326, 330) which illuminates the display area, wherein the lighting device emits a limited beam (38;338) through a circumferential wall (22) or a front wall (346) to one side of the control element (20; 320) which in each case highlights a limited surface region (36, 40; 336, 340) of the display area (12; 312) indicating in particular the operating state selected, wherein the control element (20; 320) supports a light guide (26, 326) and a light-emitting diode (30, 330), wherein the circumferential wall (22) or the front wall (346) possesses a slot-shaped through-hole extending in an axially parallel manner, into which is inserted the light guide (26, 326) which closes the slot and is flush with the outer side of the circumferential wall (22) or the front wall (346), wherein:
    - the beam (38; 338) contains visible light and illuminates the surface region (36, 40; 336, 340) to be highlighted,
    - the control element (320), to emphasize its position, is implemented in at least a partially lit manner (341), wherein it is preferably lit more dimly than the highlightable surface regions (336, 340) of the display area (12; 312) or an index mark (328) of the control element (320), and whereby the control element (330) lights essentially in the same colour as the assigned highlightable surface regions of the display area (12; 312), and different control devices on an appliance have different colours,
    - the beam, in particular a coloured light beam, causes the surface region to change colour,
    - the lighting device has a switch (32), by means of which it is put into operation or switched off to activate or deactivate the appliance or the control element (20) when the control element (20) is drawn out or retracted,
    - the control element (320) tapers towards the front,
    - the control element has a finger grip (320), characterised in that
    - an indicative character (36; 336) arranged at a radial distance from the circumferential wall (22) or the front wall (346) with respect to the display area (12; 312) stands out in a reflective manner when illuminated;
    - the highlightable surface regions have or represent characters (36; 336) indicating the operating state,
    - the lighting device is disposed wholly in the control element (20) and is readily accessible for replacement, wherein the lighting device (20) is formed by a light-emitting diode (30), a switch (32) and an electrical energy store (34) for powering it; and
    - the control element (20; 320) has on its surface an illuminated index mark (28; 328) which is preferably fed from the lighting device (26, 30, 32, 34; 326, 330).
  2. Combination according to claim 1, characterised in that at least part of the surface region (36; 336) is reflective.
  3. Combination according to one of the preceding claims, characterised in that the beam has a radiation, e.g. UV light, which excites at least one correspondingly implemented part of the surface region to emit visible light.
  4. Combination according to one of the preceding claims, characterised in that the beam (338) exits the control element (320) in an inclined manner with respect to the display area (312) and is essentially incident on a limited spot (340) on the display area.
  5. Combination according to one of claims 1 to 3, characterised in that the beam (38) exits the control element (20) approximately parallel to the display area (12) to one side and grazes the display area.
EP07787033.5A 2006-07-26 2007-07-04 Rotable actuating device Not-in-force EP2050113B1 (en)

Applications Claiming Priority (2)

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DE102006034598A DE102006034598A1 (en) 2006-07-26 2006-07-26 Rotary actuator
PCT/EP2007/056713 WO2008012178A1 (en) 2006-07-26 2007-07-04 Rotable actuating device

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EP2050113A1 EP2050113A1 (en) 2009-04-22
EP2050113B1 true EP2050113B1 (en) 2017-09-06

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KR (1) KR20090035010A (en)
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WO (1) WO2008012178A1 (en)

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KR20090035010A (en) 2009-04-08
WO2008012178A1 (en) 2008-01-31
DE102006034598A1 (en) 2008-01-31
EP2050113A1 (en) 2009-04-22

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