EP0498960A1 - Turning knob for operating the adjustment shaft of a controller - Google Patents

Turning knob for operating the adjustment shaft of a controller Download PDF

Info

Publication number
EP0498960A1
EP0498960A1 EP19910121807 EP91121807A EP0498960A1 EP 0498960 A1 EP0498960 A1 EP 0498960A1 EP 19910121807 EP19910121807 EP 19910121807 EP 91121807 A EP91121807 A EP 91121807A EP 0498960 A1 EP0498960 A1 EP 0498960A1
Authority
EP
European Patent Office
Prior art keywords
rotary knob
turning knob
barbs
push button
openings
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Withdrawn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
EP19910121807
Other languages
German (de)
French (fr)
Inventor
Klaus Dipl.-Ing. Strohm (Fh)
Helmut Braun
Rolf Kordon
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
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 EP0498960A1 publication Critical patent/EP0498960A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/08Refrigerator tables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00Switches with compound movement of handle or other operating part
    • H01H25/06Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • H01H25/065Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement using separate operating parts, e.g. a push button surrounded by a rotating knob
    • 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
    • H01H3/10Means for securing to shaft of driving mechanism

Definitions

  • the invention relates to a knob for actuating the setting shaft of a controller, in particular a temperature controller for refrigerators and freezers, with a coaxial guided in the setting shaft, an additional switch, such as exchange switch or the like., Control plunger, which is located in the center of the knob
  • the push button can be actuated, the rotary button being plugged onto the end of the adjusting shaft with a hub-like sleeve seated on its inside and secured there against being pulled off with a locking member.
  • Knobs for actuating the setting shaft of a controller are made of electrically insulating material for reasons of electrical safety and thus form an effective protection against contact, which prevents direct contact with the metallic setting shaft as well as those parts of the metallic controller housing adjacent to it.
  • the rotary knob can only be removed from the adjusting shaft with the aid of a tool, otherwise the controller must be grounded otherwise via an expensive assembly Ground line can not be dispensed with.
  • the rotary knob is therefore fastened to the adjusting shaft with a resilient locking member which serves as an axial securing means and which can only be unlocked by the action of the tip of a slim tool inserted through an engagement opening in the rotary knob, for example the blade of a screwdriver.
  • the adjusting shaft is provided with a switching plunger, which is guided coaxially therein, for an additional switch, such as a defrost or quick freeze switch and the like, which is equipped with an in Center of the rotary button seated push button is actuated.
  • the invention is therefore based on the object in a rotary knob of the type described in more detail to effectively secure the push button located in its center for actuating the additional switch in a simple manner and thereby to meet the relevant provisions for the protection against accidental contact of such temperature controllers.
  • the push button on its side facing the rotary knob is provided with at least two resilient lugs extending in the axial direction, which penetrate the bottom of the rotary knob provided with openings at corresponding points and with at its free ends seated barbs can be locked on the edge of the openings.
  • the push button is telescopically guided in a recess arranged in the center of the rotary button, the depth of which is greater than the maximum possible stroke of the push button limited by the length of the lugs and their barbs.
  • a regulator-lamp combination 15 with an insulated housing 16 in which, in addition to a temperature regulator 17, a light switch actuated by the door 11, not shown, and a likewise not shown Incandescent lamp are arranged in a touch-proof and water-protected manner together with corresponding connecting elements.
  • the temperature controller 17 is adjustable with a handle in the form of a rotary knob 18 provided with setting markings made of electrically insulating material, which is rotatably coupled via a coupling part described in more detail below with the setting shaft 19 of the temperature controller 17 projecting through the wall of the housing 16.
  • the rotary knob 18 is designed as a hollow cylindrical body, on the inside of which a hub-like sleeve 20 serving as a coupling member is arranged centrally.
  • This sleeve 20 is on the side provided with a radial slot 21 which extends into its bore.
  • an extension 22 on the side which, with a surface 23 milled on the adjusting shaft 19, ensures a defined seat of the rotary knob 18 on the adjusting shaft and at the same time represents an anti-rotation device.
  • a resilient rod 24 serving as a locking member, which extends across its cavity and is anchored at one end to the wall thereof, while its other end provided with a hook is close to one in the edge of the rotary knob 18 arranged engagement opening 25 protrudes.
  • the central section of the resilient rod 24 lies under spring tension in the lateral slot 21 and thus projects laterally into the bore of the sleeve 20.
  • the setting shaft 19 is provided with a switching plunger 27, which is guided coaxially therein and serves to actuate an exchange switch (not shown).
  • the rotary knob 18 has a recess 28 which is accessible from the outside and is located in its center and in which an axially displaceable push button 29 is guided telescopically in the manner of a bell button.
  • the pushbutton 29, which is likewise designed as a hollow cylinder closed on one end on its end face, has on its inside a sleeve 30 which is seated in the center thereof and which holds the free end of the switching plunger 27 is used.
  • the rotary knob 18 On its side facing the rotary knob 18, it has three resilient lugs 31 which are arranged in the corner points of an equilateral triangle and extend in the axial direction and which, when the pushbutton is inserted into the central recess 29 of the rotary knob 18, in corresponding locations in the bottom thereof provided openings 32 protrude and can be locked with barbs 33 located at their free ends at the edge thereof.
  • the depth of the recess 28 arranged in the center of the rotary knob 18 and receiving the pushbutton 29 is greater than the greatest possible stroke of the pushbutton 18 limited by the length of the lugs 31 and their barbs 33.
  • the central recess 27 is surrounded by a collar-like extension 33. This also prevents the barbs 31 from being anchored at the edge of the openings 32 by pressing in the lugs 31 when the push button is displaced outward to its end position defined by the barbs 31. In this way, the push button anchored in its operating position on the rotary knob 18 can only be released together with the rotary knob when its locking has been opened by levering out the resilient rod 24 by means of a pointed tool inserted into the rotary knob through the engagement opening 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Control Devices (AREA)

Abstract

Turning knob for operating a temperature controller for refrigerating and freezing appliances, with a switch pin guided coaxially in its adjustment shaft and controlling an additional switch, e.g. a deicing switch or the like, and operable by a press button seated in the centre of the turning knob, the turning knob being pushed, with a hub-like bushing seated on its inside, onto the end of the adjustment shaft and secured there with a locking member against being pulled off. Here the press button (29) is provided on its side facing the turning knob (18) with at least two axially extending resilient projections (31) which pass through the floor, provided at appropriate points with perforations (32), of the turning knob (18) and can be latched on the edge of the perforations (32) by means of barbs (33) seated on their free ends. <IMAGE>

Description

Die Erfindung betrifft einen Drehknopf zum Betätigen der Einstellwelle eines Reglers, insbesondere eines Temperaturreglers für Kühl- und Gefriergeräte, mit einem koaxial in dessen Einstellwelle geführten, einen zusätzlichen Schalter, wie Abtauschalter oder dgl., steuernden Schaltstößel, der mit einem im Zentrum des Drehknopfes sitzenden Druckknopf betätigbar ist, wobei der Drehknopf mit einer auf seiner Innenseite sitzenden, nabenartigen Muffe auf das Ende der Einstellwelle aufgesteckt und dort mit einen Sperrglied gegen Abziehen gesichert ist.The invention relates to a knob for actuating the setting shaft of a controller, in particular a temperature controller for refrigerators and freezers, with a coaxial guided in the setting shaft, an additional switch, such as exchange switch or the like., Control plunger, which is located in the center of the knob The push button can be actuated, the rotary button being plugged onto the end of the adjusting shaft with a hub-like sleeve seated on its inside and secured there against being pulled off with a locking member.

Drehknöpfe zum Betätigen der Einstellwelle eines Reglers werden aus Gründen der elektrischen Sicherheit aus elektrisch isolierendem Werkstoff hergestellt und bilden somit einen wirksamen Berührungsschutz, der die direkte Berührung der metallischen Einstellwelle ebenso wie der dieser benachbarten Teile des metallischen Reglergehäuses verhindert. In vielen Anwendungsfällen - so auch insbesondere bei Temperaturreglern für Kühl- und Gefriergeräte - ist durch bestehende Sicherheitsvorschriften festgelegt, daß sich der Drehknopf nur unter Zuhilfenahme eines Werkzeuges von der Einstellwelle abnehmen läßt, da anderenfalls auf eine sonst unbedingt erforderliche Erdung des Reglers über eine aufwendig zu montierende Masseleitung nicht verzichtet werden kann.Knobs for actuating the setting shaft of a controller are made of electrically insulating material for reasons of electrical safety and thus form an effective protection against contact, which prevents direct contact with the metallic setting shaft as well as those parts of the metallic controller housing adjacent to it. In Many applications - especially in the case of temperature controllers for refrigerators and freezers - are based on existing safety regulations that the rotary knob can only be removed from the adjusting shaft with the aid of a tool, otherwise the controller must be grounded otherwise via an expensive assembly Ground line can not be dispensed with.

Bei einem bekannten Regler der genannten Art ist der Drehknopf daher auf der Einstellwelle mit einem als axiale Sicherung diendenden, federnden Sperrglied befestigt, welches nur durch Einwirkung der Spitze eines durch eine Eingriffsöffnung im Drehknopf eingeführten schlanken Werkzeugs - beispielsweise dem Blatt eines Schraubendrehers - entriegelbar ist.In a known controller of the type mentioned, the rotary knob is therefore fastened to the adjusting shaft with a resilient locking member which serves as an axial securing means and which can only be unlocked by the action of the tip of a slim tool inserted through an engagement opening in the rotary knob, for example the blade of a screwdriver.

Besondere Probleme treten jedoch auf, wenn - wie bei einem Temperaturregler für Kühl- und Gefriergeräte häufig der Fall - die Einstellwelle mit einem koaxial darin geführten Schaltstößel für einen zusätzlichen Schalter, wie einen Abtau- oder Schnellgefrierschalter und dgl. ausgestattet ist, der über ein im Zentrum des Drehknopfes sitzenden Druckknopf betätigbar ist.However, special problems arise when - as is often the case with a temperature controller for refrigerators and freezers - the adjusting shaft is provided with a switching plunger, which is guided coaxially therein, for an additional switch, such as a defrost or quick freeze switch and the like, which is equipped with an in Center of the rotary button seated push button is actuated.

Der Erfindung liegt daher die Aufgabe zugrunde, bei einem Drehknopf der eingangs näher bezeichneten Art den in seinem Zentrum sitzenden Druckknopf zum Betätigen des zusätzlichen Schalters auf einfache Weise wirksam zu sichern und dadurch den einschlägigen Bestimmungen für den Berührungsschutz derartiger Temperaturregler gerecht zu werden.The invention is therefore based on the object in a rotary knob of the type described in more detail to effectively secure the push button located in its center for actuating the additional switch in a simple manner and thereby to meet the relevant provisions for the protection against accidental contact of such temperature controllers.

Diese Aufgabe wird nach der vorliegenden Erfindung dadurch gelöst, daß der Druckknopf auf seiner dem Drehknopf zugekehrten Seite mit wenigstens zwei sich in axialer Richtung erstreckenden federnden Ansätzen versehen ist, welche den an entsprechenden Stellen mit Durchbrüchen versehenen Boden des Drehknopfes durchdringen und mit an ihren freien Enden sitzenden Widerhaken am Rande der Durchbrüche verrastbar sind.This object is achieved according to the present invention in that the push button on its side facing the rotary knob is provided with at least two resilient lugs extending in the axial direction, which penetrate the bottom of the rotary knob provided with openings at corresponding points and with at its free ends seated barbs can be locked on the edge of the openings.

Hierdurch wird auf einfache Weise eine sichere Verbindung des Drehknopfes mit den in seinem Zentrum sitzenden Druckknopf bewirkt, und so den für diese Fälle geltenden Sicherheitsvorschriften wirksam Rechnung getragen.In this way, a secure connection of the rotary knob with the push button located in its center is effected in a simple manner, and the safety regulations applicable to these cases are effectively taken into account.

Nach einer vorteilhaften Ausgestaltung des Gegenstandes der Erfindung ist vorgesehen, daß der Druckknopf nach Art eines Klingelknopfes teleskopartig in einer im Zentrum des Drehknopfes angeordneten Vertiefung geführt ist, deren Tiefenmaß größer ist als der von der Länge der Ansätze und deren Widerhaken begrenzte größtmögliche Hub des Druckknopfes.According to an advantageous embodiment of the object of the invention it is provided that the push button is telescopically guided in a recess arranged in the center of the rotary button, the depth of which is greater than the maximum possible stroke of the push button limited by the length of the lugs and their barbs.

Hierdurch wird erreicht, daß der einmal im Zentrum des Drehknopfes eingerastete Druckknopf von der Außenseite her nicht mehr aus seiner Einbaulage gelöst werden kann.This ensures that the push button once locked in the center of the rotary knob can no longer be released from its installed position from the outside.

Eine zusätzliche Sicherung der Verbindung der beiden Teile ergibt sich, wenn nach einer weiteren vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgesehen ist, daß die zentrale Vertiefung von einem kragenartigen Ansatz umgeben ist.An additional securing of the connection of the two parts results if, according to a further advantageous embodiment of the object of the invention, it is provided that the central depression is surrounded by a collar-like extension.

Fernerhin hat sich als besonders günstig eine Konstruktion erwiesen, nach der die Durchbrüche im Boden des Drehknopfes außerhalb der nabenartigen Muffe zur Aufnahme des Endes der Einstellwelle angeordnet sind.Furthermore, a construction has proven to be particularly favorable according to which the openings in the bottom of the rotary knob are arranged outside the hub-like sleeve for receiving the end of the adjusting shaft.

Weitere, in den Ansprüchen gekennzeichnete vorteilhafte Merkmale der Erfindung sind in der nachfolgenden Beschreibung anhand eines in der Zeichnung vereinfacht dargestellten Ausführungsbeispieles eines Drehknopfes zum Betätigen der Einstellwelle eines Temperaturreglers für Kühl- und Gefriergeräte erläutert. Es zeigen:

Fig. 1
einen Kühlschrank, hinter dessen geöffnet dargestellter Tür eine innen an der Seitenwand seines Gehäuses sitzende Temperaturregler-Leuchtenkombination sichtbar ist, in raumbildlicher Darstellung,
Fig. 2
den vorderen Abschnitt der in einem Gehäuse angeordneten Regler-Leuchtenkombination, von oben gesehen, etwa in natürlichem Maßstab, wobei Teile des Gehäuses abgebrochen sind um den darin sitzenden Temperaturregler mit dem auf seiner Einstellwelle sitzenden Drehknopf und dem in dessen Zentrum angeordneten Druckknopf zum Betätigen eines Abtauschalters sichtbar zu machen und
Fig. 3
die Einstellwelle des Temperaturreglers mit dem koaxial darin geführten Schaltstößel, dem Drehknopf zum Betätigen der Einstellwelle und den in seinem Zentrum sitzenden Druckknopf zum Betätigen des Schaltstößels in vergrößerter und in axialer Richtung auseinandergezogener Darstellung, im Schnitt.
Further advantageous features of the invention characterized in the claims are explained in the following description with reference to an embodiment of a rotary knob for actuating the setting shaft of a temperature controller for refrigerators and freezers, which is shown in simplified form in the drawing. Show it:
Fig. 1
a refrigerator, behind the open door of which a temperature control / lamp combination inside the side wall of its housing is visible, in a spatial representation,
Fig. 2
the front section of the regulator-lamp combination arranged in a housing, viewed from above, on a natural scale, parts of the housing being broken off around the temperature regulator located therein with the rotary knob seated on its adjusting shaft and the push-button arranged in the center thereof for actuating an exchange switch make visible and
Fig. 3
the setting shaft of the temperature controller with the switching plunger guided coaxially therein, the rotary knob for actuating the setting shaft and the push button located in its center for actuating of the switching plunger in an enlarged and axially exploded view, in section.

Ein in der Fig. 1 mit 10 bezeichneter Kühlschrank, der in der üblichen Weise mit in seinem Nutzraum übereinander angeordneten, nicht näher bezeichneten Ablagen zur Aufnahme des einzulagernden Kühlgutes ausgestattet ist, weist ein mit einer Tür 11 verschließbares, wärmeisoliertes Gehäuse 12 auf, in dessen oberem Abschnitt ein mit einer ebenfalls wärmeisolierten Tür 13 separat verschließbares Gefrierfach 14 angeordnet ist.A in Fig. 1, designated 10 refrigerator, which is equipped in the usual manner with superimposed in its usable storage space, unspecified shelves for receiving the refrigerated goods to be stored, has a heat-insulated housing 12 which can be closed with a door 11 and in which Upper section a freezer compartment 14 is arranged separately with a likewise heat-insulated door 13.

An der Anschlagseite der Tür 11 sitzt innen an der Seitenwand des Gehäuses 12 eine Regler-Leuchtenkombination 15 mit einem isolierten Gehäuse 16, in welchem außer einem Temperaturregler 17 in der üblichen Weise ein von der Tür 11 betätigter, nicht dargestellter Lichtschalter sowie eine ebenfalls nicht dargestellte Glühlampe zusammen mit entsprechenden Verbindungselementen berührungssicher und wassergeschützt angeordnet sind. Der Temperaturregler 17 ist mit einer Handhabe in Form eines mit Einstellmarkierungen versehenen Drehknopfes 18 aus elektrisch isolierendem Werkstoff einstellbar, welcher über ein weiter unten näher beschriebenes Kupplungsteil mit der durch die Wand des Gehäuses 16 hindurchragenden Einstellwelle 19 des Temperaturreglers 17 drehfest gekuppelt ist.On the stop side of the door 11 sits on the inside of the side wall of the housing 12, a regulator-lamp combination 15 with an insulated housing 16, in which, in addition to a temperature regulator 17, a light switch actuated by the door 11, not shown, and a likewise not shown Incandescent lamp are arranged in a touch-proof and water-protected manner together with corresponding connecting elements. The temperature controller 17 is adjustable with a handle in the form of a rotary knob 18 provided with setting markings made of electrically insulating material, which is rotatably coupled via a coupling part described in more detail below with the setting shaft 19 of the temperature controller 17 projecting through the wall of the housing 16.

In dem dargestellten Ausführungsbeispiel ist der Drehknopf 18 als ein hohlzylindrischer Körper ausgebildet, auf dessen Innenseite eine als Kupplungsglied dienende nabenartige Muffe 20 zentrisch angeordnet ist. Diese Muffe 20 ist seitlich mit einem radialen Schlitz 21 versehen, der sich bis in deren Bohrung erstreckt. In der Bohrung der Muffe 20 befindet sich seitlich ein Ansatz 22, welcher mit einer an der Einstellwelle 19 angefrästen Fläche 23 einen definierten Sitz des Drehknopfes 18 auf der Einstellwelle gewährleistet und gleichzeitig eine Verdrehsicherung darstellt.In the illustrated embodiment, the rotary knob 18 is designed as a hollow cylindrical body, on the inside of which a hub-like sleeve 20 serving as a coupling member is arranged centrally. This sleeve 20 is on the side provided with a radial slot 21 which extends into its bore. In the bore of the sleeve 20 there is an extension 22 on the side which, with a surface 23 milled on the adjusting shaft 19, ensures a defined seat of the rotary knob 18 on the adjusting shaft and at the same time represents an anti-rotation device.

Auf der Innenseite des Drehknopfes 18 befindet sich ein als Sperrglied dienender, federnder Stab 24, welcher sich quer durch dessen Höhlung erstreckt und mit seinem einen Ende an deren Wand verankert ist, während sein anderes, mit einem Haken versehenes Ende bis nahe an eine im Rand des Drehknopfes 18 angeordnete Eingriffsöffnung 25 ragt. Der Mittelabschnitt des federnden Stabes 24 liegt unter Federspannung in dem seitlichen Schlitz 21 und ragt somit seitlich in die Bohrung der Muffe 20 hinein. Bei aufgestecktem Drehknopf 18 schnappt dieser in eine radiale Vertiefung 26 in der Einstellwelle 19 ein und bildet somit eine axiale Sicherung des Drehknopfes 18 auf der Einstellwelle 19 des Temperaturreglers 17.On the inside of the rotary knob 18 there is a resilient rod 24 serving as a locking member, which extends across its cavity and is anchored at one end to the wall thereof, while its other end provided with a hook is close to one in the edge of the rotary knob 18 arranged engagement opening 25 protrudes. The central section of the resilient rod 24 lies under spring tension in the lateral slot 21 and thus projects laterally into the bore of the sleeve 20. When the rotary knob 18 is plugged on, it snaps into a radial recess 26 in the setting shaft 19 and thus forms an axial securing of the rotary knob 18 on the setting shaft 19 of the temperature controller 17.

Die Einstellwelle 19 ist, wie insbesondere in Fig. 3 erkennbar, mit einem koaxial darin geführten Schaltstößel 27 versehen, der zum Betätigen eines nicht dargestellten Abtauschalters dient. Zu diesem Zweck weist der Drehknopf 18 eine von außen zugängliche, in seinem Zentrum sitzende Vertiefung 28 auf, in welcher ein axial verschiebbarer Druckknopf 29 nach Art eines Klingelknopfes teleskopartig geführt ist. Der ebenfalls als ein an seiner Stirnseite einseitig geschlossene Hohlzylinder ausgebildete Druckknopf 29 weist auf seiner Innenseite eine in dessen Zentrum sitzende Muffe 30 auf, welche zur Aufnahme des freien Endes des Schaltstößels 27 dient. Auf seiner den Drehknopf 18 zugekehrten Seite weist er drei, sich in den Eckpunkten eines gleichseitigen Dreiecks angeordnete und sich in axialer Richtung erstreckende federnde Ansätze 31 auf, welche beim Einsetzen des Druckknopfes in die zentrale Vertiefung 29 des Drehknopfes 18 in an entsprechende Stellen in dessen Boden vorgesehene Durchbrüche 32 hineinragen und mit an ihren freien Enden sitzenden Widerhaken 33 an deren Rand verrastbar sind.As can be seen in particular in FIG. 3, the setting shaft 19 is provided with a switching plunger 27, which is guided coaxially therein and serves to actuate an exchange switch (not shown). For this purpose, the rotary knob 18 has a recess 28 which is accessible from the outside and is located in its center and in which an axially displaceable push button 29 is guided telescopically in the manner of a bell button. The pushbutton 29, which is likewise designed as a hollow cylinder closed on one end on its end face, has on its inside a sleeve 30 which is seated in the center thereof and which holds the free end of the switching plunger 27 is used. On its side facing the rotary knob 18, it has three resilient lugs 31 which are arranged in the corner points of an equilateral triangle and extend in the axial direction and which, when the pushbutton is inserted into the central recess 29 of the rotary knob 18, in corresponding locations in the bottom thereof provided openings 32 protrude and can be locked with barbs 33 located at their free ends at the edge thereof.

Das Tiefenmaß der im Zentrum des Drehknopfes 18 angeordneten, den Druckknopf 29 aufnehmenden Vertiefung 28 ist größer als der von der Länge der Ansätze 31 und deren Widerhaken 33 begrenzte größtmögliche Hub des Druckknopfes 18. Um bei dessen verhältnismäßig dünnen Boden einen ausreichenden Hub zu gewährleisten, ist die zentrale Vertiefung 27 von einem kragenartigen Ansatz 33 umgeben. Dieser verhindert auch, daß sich die Widerhaken 31 aus ihrer Verankerung am Rande der Durchbrüche 32 durch Eindrücken der Ansätze 31 lösen lassen, wenn der Druckknopf bis zu seinem durch die Widerehaken 31 definierten Endlage nach außen verschoben ist. Auf dieser Weise läßt sich der einmal in seiner Betrieblsage am Drehknopf 18 verankerte Druckknopf nur noch zusammen mit dem Drehknopf lösen, wenn dessen Verriegelung durch Aushebeln des federnden Stabes 24 mittels eines durch die Eingriffsöffnung 25 in den Drehknopf eingeführten spitzen Werkzeuges geöffnet worden ist.The depth of the recess 28 arranged in the center of the rotary knob 18 and receiving the pushbutton 29 is greater than the greatest possible stroke of the pushbutton 18 limited by the length of the lugs 31 and their barbs 33. In order to ensure a sufficient stroke in the relatively thin bottom thereof the central recess 27 is surrounded by a collar-like extension 33. This also prevents the barbs 31 from being anchored at the edge of the openings 32 by pressing in the lugs 31 when the push button is displaced outward to its end position defined by the barbs 31. In this way, the push button anchored in its operating position on the rotary knob 18 can only be released together with the rotary knob when its locking has been opened by levering out the resilient rod 24 by means of a pointed tool inserted into the rotary knob through the engagement opening 25.

Claims (5)

Drehknopf zum Betätigen der Einstellwelle eines Reglers, insbesondere eines Temperaturreglers für Kühl- und Gefriergeräte, mit einem koaxial in dessen Einstellwelle geführten, einen zusätzlichen Schalter, wie Abtauschalter oder dgl., steuernden Schaltstößel, der mit einem im Zentrum des Drehknopfes sitzenden Druckknopf betätigbar ist, wobei der Drehknopf mit einen auf seiner Innenseite sitzenden, nabenartigen Muffe auf das Ende der Einstellwelle aufgesteckt und dort mit einem Sperrglied gegen Abziehen gesichert ist, dadurch gekennzeichnet, daß der Druckknopf (29) auf seiner dem Drehknopf (18) zugekehrten Seite mit wenigstens zwei sich in axialer Richtung erstreckenden federnden Ansätzen (31) versehen ist, welche den an entsprechenden Stellen mit Durchbrüchen (32) versehenen Boden des Drehknopfes (18) durchdringen und mit an ihren freien Enden sitzenden Widerhaken (33) am Rande der Durchbrüche (32) verrastbar sind.Rotary knob for actuating the setting shaft of a regulator, in particular a temperature regulator for refrigerators and freezers, with a switching plunger which controls an additional switch, such as exchange switch or the like, which is guided coaxially in its setting shaft and which can be actuated with a push button located in the center of the rotary knob, wherein the rotary knob with a hub-like sleeve located on its inside is attached to the end of the adjusting shaft and secured there against being pulled off with a locking member, characterized in that the push button (29) on its side facing the rotary knob (18) has at least two self-locking resilient lugs (31) extending in the axial direction are provided, which penetrate the bottom of the rotary knob (18) provided with openings (32) at corresponding points and can be locked at the edge of the openings (32) with barbs (33) located at their free ends . Drehknopf nach Anspruch 1, dadurch gekennzeichnet, daß der Druckknopf (29) nach Art eines Klingelknopfes teleskopartig in einer im Zentrum des Drehknopfes (18) angeordneten Vertiefung (28) geführt ist, deren Tiefenmaß größer ist als der von der Länge der Ansätze (31) und deren Widerhaken (33) begrenzte größtmögliche Hub des Drehknopfes (29).Rotary knob according to claim 1, characterized in that the push button (29) is guided telescopically in the manner of a bell button in a recess (28) arranged in the center of the rotary knob (18), the depth of which is greater than that of the length of the lugs (31) and their barbs (33) limited the greatest possible stroke of the rotary knob (29). Drehknopf nach Anspruch 2, dadurch gekennzeichnet, daß die zentrale Vertiefung (28) von einen kragenartigen Ansatz (34) umgeben ist.Rotary knob according to claim 2, characterized in that the central recess (28) is surrounded by a collar-like extension (34). Drehknopf nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Durchbrüche (32) im Boden des Drehknopfes (18) außerhalb der nabenartigen Muffe (20) zur Aufnahme des Endes der Einstellwelle (19) angeordnet sind.Rotary knob according to claim 1, 2 or 3, characterized in that the openings (32) are arranged in the bottom of the rotary knob (18) outside the hub-like sleeve (20) for receiving the end of the adjusting shaft (19). Drehknopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Drehknopf (18) mit drei in den Eckpunkten eines regelmäßigen Dreiecks angeordneten Ansätzen (31) versehen ist, deren Widerhaken (33) nach außen gekehrt sind.Rotary knob according to one of the preceding claims, characterized in that the rotary knob (18) is provided with three lugs (31) arranged in the corner points of a regular triangle, the barbs (33) of which are turned outwards.
EP19910121807 1991-02-13 1991-12-19 Turning knob for operating the adjustment shaft of a controller Withdrawn EP0498960A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9101652U 1991-02-13
DE9101652U DE9101652U1 (en) 1991-02-13 1991-02-13 Rotary knob for operating the adjustment shaft of a controller

Publications (1)

Publication Number Publication Date
EP0498960A1 true EP0498960A1 (en) 1992-08-19

Family

ID=6864235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910121807 Withdrawn EP0498960A1 (en) 1991-02-13 1991-12-19 Turning knob for operating the adjustment shaft of a controller

Country Status (2)

Country Link
EP (1) EP0498960A1 (en)
DE (1) DE9101652U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450653A (en) * 1994-01-05 1995-09-19 The Grigoleit Company Composite knob with an insertable position indicator
ES2116151A1 (en) * 1994-05-05 1998-07-01 Fagor S Coop Retractable control for a refrigerator.
USRE37687E1 (en) 1996-01-05 2002-05-07 The Grigoleit Company Method for manufacturing an indicator knob and a knob
US7036188B1 (en) 2004-03-24 2006-05-02 The Grigoleit Company Composite knob with light pipe leakage barrier
CN105135513A (en) * 2015-09-29 2015-12-09 广东美的环境电器制造有限公司 Gear switch-adjustable temperature controller connection structure and fan heater comprising same
CN105276915A (en) * 2015-11-06 2016-01-27 合肥华凌股份有限公司 Rotary knob, temperature control panel comprising same and freezer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9113578U1 (en) 1991-10-31 1993-03-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vacuum cleaner with a rotary knob
DE19944463A1 (en) * 1999-09-16 2001-03-29 Siemens Ag Operating member e.g. for rotating infrequently adjusted potentiometer
DE202011108755U1 (en) 2011-11-30 2012-02-01 Peter Moser Knob for a controller with one-button operation for a ventilation system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248074B (en) * 1965-07-21 1967-08-24 Bosch Hausgeraete Gmbh Housing to be fastened to the cold room wall of a refrigerator to accommodate and cover electrical equipment
US3367206A (en) * 1965-06-10 1968-02-06 Westinghouse Electric Corp Pushbutton actuator
GB1113558A (en) * 1965-11-01 1968-05-15 Mallory Timers Ltd Manual shaft driving means
GB2157800A (en) * 1984-04-17 1985-10-30 Hoover Plc Rotary control
DE8803427U1 (en) * 1988-03-14 1988-05-11 Bosch-Siemens Hausgeräte GmbH, 8000 München Controller-light combination for refrigerators or similar.
EP0358570A1 (en) * 1988-09-08 1990-03-14 Jaeger Actuating lever handle, particularly for a motor vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7338618U (en) * 1974-02-21 Hoffmann K Cladding profile for wall, ceiling, facade cladding or the like, in particular for balcony cladding
DE1264727B (en) * 1962-01-13 1968-03-28 Vepa Vorrichtungsbau Emil Pfis Balcony slab
AT348229B (en) * 1975-04-21 1979-02-12 Xinto Handelsges M B H BAR FOR A SLIDING GRATE
DE3702128C2 (en) * 1987-01-24 1996-10-17 Sks Stakusit Kunststoff Gmbh Bracket for alignable fastening of the posts of a balcony railing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367206A (en) * 1965-06-10 1968-02-06 Westinghouse Electric Corp Pushbutton actuator
DE1248074B (en) * 1965-07-21 1967-08-24 Bosch Hausgeraete Gmbh Housing to be fastened to the cold room wall of a refrigerator to accommodate and cover electrical equipment
GB1113558A (en) * 1965-11-01 1968-05-15 Mallory Timers Ltd Manual shaft driving means
GB2157800A (en) * 1984-04-17 1985-10-30 Hoover Plc Rotary control
DE8803427U1 (en) * 1988-03-14 1988-05-11 Bosch-Siemens Hausgeräte GmbH, 8000 München Controller-light combination for refrigerators or similar.
EP0358570A1 (en) * 1988-09-08 1990-03-14 Jaeger Actuating lever handle, particularly for a motor vehicle

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450653A (en) * 1994-01-05 1995-09-19 The Grigoleit Company Composite knob with an insertable position indicator
US5669104A (en) * 1994-01-05 1997-09-23 The Grigoleit Company Composite knob with an insertable position indicator
ES2116151A1 (en) * 1994-05-05 1998-07-01 Fagor S Coop Retractable control for a refrigerator.
USRE37687E1 (en) 1996-01-05 2002-05-07 The Grigoleit Company Method for manufacturing an indicator knob and a knob
US6391243B1 (en) 1996-01-05 2002-05-21 The Grigoleit Company Method for manufacturing an indicator knob
US6568036B1 (en) 1996-01-05 2003-05-27 The Grigoleit Company Composite indicator knob and a method for manufacturing a knob
US7036188B1 (en) 2004-03-24 2006-05-02 The Grigoleit Company Composite knob with light pipe leakage barrier
US7203998B2 (en) 2004-03-24 2007-04-17 The Grigoleit Company Composite knob with light pipe leakage barrier
CN105135513A (en) * 2015-09-29 2015-12-09 广东美的环境电器制造有限公司 Gear switch-adjustable temperature controller connection structure and fan heater comprising same
CN105276915A (en) * 2015-11-06 2016-01-27 合肥华凌股份有限公司 Rotary knob, temperature control panel comprising same and freezer

Also Published As

Publication number Publication date
DE9101652U1 (en) 1991-05-02

Similar Documents

Publication Publication Date Title
DE19855903A1 (en) Electric on-off switch operating method
EP0498960A1 (en) Turning knob for operating the adjustment shaft of a controller
DE2045832A1 (en) Adjustable switch device
DE2624453C2 (en) Mounting plate for furniture hinges
EP0891524B1 (en) Refrigerator
DE3207725A1 (en) Push-button switch key
DE3130703A1 (en) Handle-fastening device, in particular for household appliances and garden implements
DE4324964C2 (en) Device for locking cabinet doors
EP0287799B1 (en) Fittings for doors equipped with cylinder locks or the like
DE3532574A1 (en) Electrical switch with actuation slide
DE3417726C2 (en)
DE8803427U1 (en) Controller-light combination for refrigerators or similar.
DE3341180C2 (en) Household cutting machine, in particular with an electric motor drive
DE102019105567A1 (en) Torque tool
EP1022102B1 (en) Switching means and means for adjusting the position of the gauge plate of a cutting machine
EP0029489B1 (en) Key switch
DE3722759A1 (en) LOCK ARRANGEMENT FOR MICROWAVE DOOR
DE29825027U1 (en) Locking mechanism for furniture e.g. desks - has housing and slider with two insert openings for locking pin at 90 deg. to each other with registration element monitoring device at intersection of axes of openings
EP0066826B1 (en) Key switch
DE3519368A1 (en) Rotary switch
DE1144810B (en) Electric switch socket operated by a device door
DE649290C (en) Electric timer with manual activation
CH655815A5 (en) RESET DEVICE.
DE3516783C2 (en) Gear lever knob
DE2831514A1 (en) Polygonal changeover door lock pin - has stop end piece on spindle preventing pin withdrawal when turned

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): CH DE DK ES FR GB IT LI

17P Request for examination filed

Effective date: 19930210

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BOSCH-SIEMENS HAUSGERAETE GMBH

17Q First examination report despatched

Effective date: 19940331

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19950411