EP0549870B1 - Rotatable selector switch with cam shaft or cam wheel positionable by an indexing means - Google Patents

Rotatable selector switch with cam shaft or cam wheel positionable by an indexing means Download PDF

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Publication number
EP0549870B1
EP0549870B1 EP92118849A EP92118849A EP0549870B1 EP 0549870 B1 EP0549870 B1 EP 0549870B1 EP 92118849 A EP92118849 A EP 92118849A EP 92118849 A EP92118849 A EP 92118849A EP 0549870 B1 EP0549870 B1 EP 0549870B1
Authority
EP
European Patent Office
Prior art keywords
indexing
plunger
spring
camshaft
star
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92118849A
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German (de)
French (fr)
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EP0549870A1 (en
Inventor
Wolfgang Bauer
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.)
Haschkamp geb Dreefs Ernestine
Haschkamp Wolfgang Dipl-Kfm
Original Assignee
Haschkamp geb Dreefs Ernestine
Haschkamp Joachim Dipl-Ing
Haschkamp Wolfgang Dipl-Kfm
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 Haschkamp geb Dreefs Ernestine, Haschkamp Joachim Dipl-Ing, Haschkamp Wolfgang Dipl-Kfm filed Critical Haschkamp geb Dreefs Ernestine
Publication of EP0549870A1 publication Critical patent/EP0549870A1/en
Application granted granted Critical
Publication of EP0549870B1 publication Critical patent/EP0549870B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means

Definitions

  • the invention relates to a rotary cam switch according to the preamble of claim 1.
  • Such rotary cam switches are mainly used in household appliances, the numerous, recently required switching options requiring more and more switching contacts that have to be switched simultaneously or selectively.
  • Today, a modern electric cooker is required to have top heat, bottom heat, large grill, small grill, hot air and a microwave, which must also be combined with conventional heating methods.
  • a rotary selector switch Due to the numerous switch contacts that such a rotary selector switch must have, exact locking with simple means is becoming increasingly difficult.
  • the high number of switching contacts favors intermediate positions, ie the camshaft can be consciously or unconsciously kept in an unstable intermediate position.
  • a rotary selector switch has a detent, consisting of a detent star, a compression spring and a detent roller or a detent plunger, as is shown schematically in Fig. 1 of the drawing.
  • the many switching contacts that are actuated by a camshaft or by a cam disk require a very strong compression spring in the detent.
  • the latching can be somewhat improved by such a reinforced compression spring, but unstable intermediate positions, in particular in the area in which the tip of the latching star moves over the latching roller or the latching plunger, cannot be prevented.
  • a strong compression spring also means a high actuation force, which is undesirable especially in modern electrical devices.
  • the invention is therefore based on the object of designing a generic rotary selector switch in such a way that the detent is reliably ensured without increasing the spring force axially loading the latching plunger even with a large number of switching contacts without intermediate positions.
  • the switching plunger is resiliently supported within its lateral movement space, which improves the described effect.
  • the spring support can be carried out in a simple manner in that a U-shaped leaf spring is used within a latching chamber, the legs of which rest laterally on the latching plunger, and which are deflected and pretensioned during the switching movement and support the switching movement when the pretension is released.
  • the cam switch itself consists of a camshaft or cam disk, which controls different contacts in different angular positions, which are arranged one behind the other in the bed of the switch.
  • the catch has a catch chamber 12, which is arranged in the base housing 10 and has a square cross section, the axis 14 of which intersects the axis 16 of the camshaft perpendicularly.
  • the locking plunger consisting of pin 18 and cap 20 is axially displaceably mounted in the locking chamber, the cap 20 being guided in the bore forming the locking chamber 12.
  • a compression coil spring 22 is mounted, which is supported on the bottom of the bore and on the cap 20 from below and biases the locking plunger against the locking star 24.
  • the cap which can also be designed as a ball, engages in a corresponding recess in the six-pointed locking star.
  • the locking plunger 18, 20 is pressed down over the correspondingly rounded tooth of the locking star until an unstable equilibrium position is reached after an angular rotation of 30 °, in which the plunger axis 14 is the tip of the corresponding locking tooth 26 meets.
  • the cam switch shaft or cam disk can be kept consciously or unconsciously, which is disadvantageous in particular with the large number of contacts to be switched and can lead to incorrect switching and / or arcing.
  • a U-shaped leaf spring 28 is inserted into the locking chamber 12, which is dimensioned in the lower section so that it sits tightly on the leaf spring.
  • the locking chamber is provided with an extension 30 in which the leaf spring 28 and the locking plunger 18 enclosed by it can dodge laterally, ie transversely to the axis 16 of the camshaft. 2, in turn, axis 14 of the locking plunger intersects axis 16 of the camshaft essentially at right angles.
  • the respective locking tooth 26 pushes the locking cap (or locking roller, or locking ball) into the position shown in FIG. 3.
  • the left leg of the leaf spring is deflected via the locking plunger or its cap and abuts the left wall of the extension.
  • the plunger is also moved downward by the tooth 26 against the action of the helical spring 22.
  • the tip of the locking tooth 26 lies in the vicinity of the tip of the locking plunger, and when it rotates further, the locking plunger jumps to the right by relaxing the left leg of the leaf spring, and the locking plunger is thus pressed onto the other flank of the locking star (FIG. 4). 4
  • the compression spring 22 can move the plunger into the locking position shown in FIG. 2, the right leg of the U-shaped leaf spring, which is biased to the right in FIG. 4, supporting the switch shaft movement in this end section.
  • leaf spring 28 instead of the leaf spring 28, other spring arrangements could also be provided, which center the latching plunger in the latching position, but allow lateral evasion during the switching process in order to be able to surpass the unstable switching point more safely.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Description

Die Erfindung bezieht sich auf einen Nockendrehschalter gemäß dem Oberbegriff des Anspruchs 1. Derartige Nockendrehschalter finden hauptsächlich in Haushaltgeräten Anwendung, wobei die zahlreichen, neuerdings geforderten Schaltmöglichkeiten immer mehr Schaltkontakte erfordern, die gleichzeitig oder selektiv geschaltet werden müssen. So wird von einem modernen Elektroherd heute gefordert, daß er Oberhitze, Unterhitze, großen Grill, kleinen Grill, Heißluft und eine Mikrowelle aufweist, die auch wieder mit den konventionellen Beheizungsarten kombiniert werden muß.The invention relates to a rotary cam switch according to the preamble of claim 1. Such rotary cam switches are mainly used in household appliances, the numerous, recently required switching options requiring more and more switching contacts that have to be switched simultaneously or selectively. Today, a modern electric cooker is required to have top heat, bottom heat, large grill, small grill, hot air and a microwave, which must also be combined with conventional heating methods.

Bedingt durch die zahlreichen Schaltkontakte, die ein solcher Drehwahlschalter haben muß, wird eine exakte Rastung mit einfachen Mitteln immer schwieriger. Die hohe Zahl von Schaltkontakten begünstigt Zwischenstellungen, d.h. die Nockenwelle kann bewußt oder unbewußt in einer labilen Zwischenstellung gehalten werden. Normalerweise hat ein Drehwahlschalter eine Rastung, bestehend aus einem Raststern, einer Druckfeder und einer Rastrolle bzw. einem Raststößel, wie dies in Fig. 1 der Zeichnung schematisch dargestellt ist. Die vielen Schaltkontakte, die durch eine Nockenwelle oder durch eine Nockenscheibe betätigt werden, erfordern eine sehr starke Druckfeder in der Rastung. Durch eine solche verstärkte Druckfeder kann zwar die Rastung etwas verbessert werden, jedoch können labile Zwischenstellungen, insbesondere in dem Bereich, in dem sich die Spitze des Raststerns über der Rastrolle bzw. dem Raststößel bewegt, nicht verhindert werden. Eine starke Druckfeder bedeutet aber auch eine hohe Betätigungskraft, die gerade bei modernen Elektrogeräten unerwünscht ist.Due to the numerous switch contacts that such a rotary selector switch must have, exact locking with simple means is becoming increasingly difficult. The high number of switching contacts favors intermediate positions, ie the camshaft can be consciously or unconsciously kept in an unstable intermediate position. Normally, a rotary selector switch has a detent, consisting of a detent star, a compression spring and a detent roller or a detent plunger, as is shown schematically in Fig. 1 of the drawing. The many switching contacts that are actuated by a camshaft or by a cam disk require a very strong compression spring in the detent. The latching can be somewhat improved by such a reinforced compression spring, but unstable intermediate positions, in particular in the area in which the tip of the latching star moves over the latching roller or the latching plunger, cannot be prevented. A strong compression spring also means a high actuation force, which is undesirable especially in modern electrical devices.

Der Erfindung liegt daher die Aufgabe zugrunde, einen gattungsgemäßen Drehwahlschalter derart auszubilden, daß die Rastung ohne Erhöhung der den Raststößel axial belastenden Federkraft zuverlässig auch bei einer Vielzahl von Schaltkontakten ohne Zwischenstellungen gewährleistet wird.The invention is therefore based on the object of designing a generic rotary selector switch in such a way that the detent is reliably ensured without increasing the spring force axially loading the latching plunger even with a large number of switching contacts without intermediate positions.

Gelöst wird die gestellte Aufgabe durch die im Anspruch 1 angegebenen Merkmale.The problem is solved by the features specified in claim 1.

Dadurch, daß sich das Verriegelungsglied zusammen mit dem Raststößel quer bewegen kann ergibt sich ein zusätzliches Drehmoment, welches zunächst der Drehbewegung der Nockenwelle entgegenwirkt und die Drehung dann unterstützt, wobei die Zwischenstellungen dazwischen schnell und zuverlässig überwunden werden können. Durch die üblicherweise den Raststößel umschließende Druckschraubenfeder wird bei seitlicher Auslenkung des Raststößels bereits eine gewisse Zentrierkraft ausgeübt, die die beschriebene Schaltbetätigung begünstigt.The fact that the locking member can move transversely together with the locking plunger results in an additional torque which initially counteracts the rotary movement of the camshaft and then supports the rotation, the intermediate positions between which can be overcome quickly and reliably. Due to the compression coil spring that usually surrounds the locking plunger, a certain centering force is already exerted when the locking plunger is deflected laterally, which favors the switching operation described.

Gemäß der Erfindung ist jedoch vorgesehen, den Schaltstößel innerhalb seines seitlichen Bewegungsraumes federnd abzustützen, wodurch die beschriebene Wirkung verbessert wird. Auf einfache Weise kann die Federabstützung dadurch vorgenommen werden, daß innerhalb einer Rastkammer eine U-förmige Blattfeder eingesetzt wird, deren Schenkel dem Raststößel seitlich anliegen, und die bei der Schaltbewegung ausgelenkt und vorgespannt werden und beim Nachlassen der Vorspannung die Schaltbewegung unterstützen.According to the invention, however, it is provided that the switching plunger is resiliently supported within its lateral movement space, which improves the described effect. The spring support can be carried out in a simple manner in that a U-shaped leaf spring is used within a latching chamber, the legs of which rest laterally on the latching plunger, and which are deflected and pretensioned during the switching movement and support the switching movement when the pretension is released.

Durch diese einfache Konstruktion wird ein exaktes Rasten eines Wahlschalters mit geringem Betätigungsdrehmoment und ohne Zwischenstellungen gewährleistet.This simple construction ensures that a selector switch snaps exactly with a low actuation torque and without intermediate positions.

Nachstehend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung beschrieben. In der Zeichnung zeigen:

  • Fig. 1 eine Teilschnittansicht eines den Stand der Technik repräsentierenden Drehwahlschalters in eingerasteter Stellung;
  • Fig. 2 eine der Fig. 1 entsprechende Teilschnittansicht eines erfindungsgemäß ausgebildeten Drehwahlschalters in Raststellung;
  • Fig. 3 eine der Fig. 2 entsprechende Teilschnittansicht kurz vor Erreichen der Schnappstellung;
  • Fig. 4 eine entsprechende Teilschnittansicht nach Überschreiten der Schnappstellung.
An embodiment of the invention is described below with reference to the drawing. The drawing shows:
  • Figure 1 is a partial sectional view of a rotary selector representing the prior art in the engaged position.
  • FIG. 2 shows a partial sectional view corresponding to FIG. 1 of a rotary selector switch designed in accordance with the invention in the latched position;
  • 3 shows a partial sectional view corresponding to FIG. 2 shortly before reaching the snap position;
  • Fig. 4 is a corresponding partial sectional view after exceeding the snap position.

In der Zeichnung sind nur die für die Rastung erforderlichen Teile des Nockenschalters ersichtlich. Der Nockenschalter selbst besteht aus einer Nockenwelle bzw. Nockenscheibe, die in unterschiedlichen Winkelstellungen unterschiedliche Kontakte steuert, die hintereinander im Bett des Schalters angeordnet sind.In the drawing, only the parts of the cam switch required for the detent can be seen. The cam switch itself consists of a camshaft or cam disk, which controls different contacts in different angular positions, which are arranged one behind the other in the bed of the switch.

Beim Stande der Technik und bei dem Erfindungsgegenstand weist die Rastung eine im Sockelgehäuse 10 angeordnete Rastkammer 12 quadratischen Querschnitts auf, deren Achse 14 die Achse 16 der Nockenwelle senkrecht schneidet. In der Rastkammer ist der aus Zapfen 18 und Kappe 20 bestehende Raststößel axial verschiebbar gelagert, wobei die Kappe 20 in der die Rastkammer 12 bildenden Bohrung geführt ist. Auf dem Zapfen 18 ist eine Druckschraubenfeder 22 aufgezogen, die sich am Grund der Bohrung und an der Kappe 20 von unten her abstützt und den Raststößel gegen den Raststern 24 vorspannt. In der aus Fig. 1 ersichtlichen Stellung greift die Kappe, die auch als Kugel ausgebildet sein kann, in eine entsprechende Vertiefung des sechszackigen Raststerns ein. Bei einer Verdrehung der Nockenwelle im Uhrzeigersinn oder im Gegenuhrzeigersinn wird der Raststößel 18, 20 über den entsprechend abgerundeten Zahn des Raststernes nach unten gedrückt, bis nach einer Winkeldrehung von 30° eine labile Gleichgewichtsstellung erreicht wird, in der die Stößelachse 14 die Spitze des entsprechenden Rastzahnes 26 trifft. In dieser labilen Schaltstellung kann die Nockenschalterwelle bzw. Nockenscheibe bewußt oder unbewußt gehalten werden, was insbesondere bei der Vielzahl der zu schaltenden Kontakte nachteilig ist und zu Fehlschaltungen und/oder Lichtbogenbildungen führen kann.In the prior art and in the subject matter of the invention, the catch has a catch chamber 12, which is arranged in the base housing 10 and has a square cross section, the axis 14 of which intersects the axis 16 of the camshaft perpendicularly. The locking plunger consisting of pin 18 and cap 20 is axially displaceably mounted in the locking chamber, the cap 20 being guided in the bore forming the locking chamber 12. On the pin 18, a compression coil spring 22 is mounted, which is supported on the bottom of the bore and on the cap 20 from below and biases the locking plunger against the locking star 24. In the position shown in FIG. 1, the cap, which can also be designed as a ball, engages in a corresponding recess in the six-pointed locking star. When the camshaft is turned clockwise or counterclockwise, the locking plunger 18, 20 is pressed down over the correspondingly rounded tooth of the locking star until an unstable equilibrium position is reached after an angular rotation of 30 °, in which the plunger axis 14 is the tip of the corresponding locking tooth 26 meets. In this unstable switching position, the cam switch shaft or cam disk can be kept consciously or unconsciously, which is disadvantageous in particular with the large number of contacts to be switched and can lead to incorrect switching and / or arcing.

Man hat versucht, durch Verstärkung der Feder und entsprechende Gestaltung des Raststerns das Auftreten solcher Zwischenstellungen zu vermeiden. Das Auftreten dieser Zwischenstellungen wird, wie aus den Figuren 2 bis 4 ersichtlich, durch die Erfindung vermieden. Zu diesem Zweck ist eine U-förmige Blattfeder 28 in die Rastkammer 12 eingesetzt, die im unteren Abschnitt so bemessen ist, daß sie der Blattfeder straff ansitzt. Im oberen Abschnitt ist die Rastkammer mit einer Erweiterung 30 versehen, in der die Blattfeder 28 und der von ihr umschlossene Raststößel 18 seitlich, d.h. quer zur Achse 16 der Nockenwelle ausweichen kann. In der Raststellung gemäß Fig. 2 schneidet wiederum die Achse 14 des Raststößels die Achse 16 der Nockenwelle im wesentlichen rechtwinklig. Wenn aus dieser Stellung heraus die Nockenwelle im Uhrzeigersinn bewegt wird, dann schiebt der betreffende Rastzahn 26 die Rastkappe (oder Rastrolle, oder Rastkugel) in die aus Fig. 3 ersichtliche Stellung. Dabei ist über den Raststößel bzw. dessen Kappe der linke Schenkel der Blattfeder ausgelenkt und stößt an der linken Wand der Erweiterung an. In üblicher Weise ist durch den Zahn 26 auch der Stößel gegen die Wirkung der Schraubenfeder 22 nach unten verschoben. In dieser Stellung gemäß Fig. 3 liegt die Spitze des Rastzahnes 26 in der Nähe der Koppe des Raststößels und bei Weiterdrehung springt der Raststößel durch Entspannung des linken Schenkels der Blattfeder nach rechts und damit wird der Raststößel auf die andere Flanke des Raststerns gedrückt (Fig. 4). Aus dieser Stellung gemäß Fig. 4 kann die Druckfeder 22 den Stößel in die aus Fig. 2 ersichtliche Raststellung überführen, wobei der gemäß Fig. 4 durch Ausbiegung nach rechts vorgespannte rechte Schenkel der U-förmigen Blattfeder die Schalterwellenbewegung in diesem Endabschnitt unterstützt.Attempts have been made to avoid the occurrence of such intermediate positions by reinforcing the spring and designing the locking star accordingly. The occurrence of these intermediate positions is avoided by the invention, as can be seen from FIGS. 2 to 4. For this purpose, a U-shaped leaf spring 28 is inserted into the locking chamber 12, which is dimensioned in the lower section so that it sits tightly on the leaf spring. In the upper section, the locking chamber is provided with an extension 30 in which the leaf spring 28 and the locking plunger 18 enclosed by it can dodge laterally, ie transversely to the axis 16 of the camshaft. 2, in turn, axis 14 of the locking plunger intersects axis 16 of the camshaft essentially at right angles. If the camshaft is moved clockwise from this position, then the respective locking tooth 26 pushes the locking cap (or locking roller, or locking ball) into the position shown in FIG. 3. The left leg of the leaf spring is deflected via the locking plunger or its cap and abuts the left wall of the extension. In the usual way, the plunger is also moved downward by the tooth 26 against the action of the helical spring 22. In this position according to FIG. 3, the tip of the locking tooth 26 lies in the vicinity of the tip of the locking plunger, and when it rotates further, the locking plunger jumps to the right by relaxing the left leg of the leaf spring, and the locking plunger is thus pressed onto the other flank of the locking star (FIG. 4). 4, the compression spring 22 can move the plunger into the locking position shown in FIG. 2, the right leg of the U-shaped leaf spring, which is biased to the right in FIG. 4, supporting the switch shaft movement in this end section.

Anstelle der Blattfeder 28 könnten auch andere Federanordnungen vorgesehen werden, die den Raststößel in der Verrastungsstellung zentrieren, während des Schaltvorganges jedoch ein seitliches Ausweichen ermöglichen, um den labilen Schaltpunkt sicherer überwinden zu können.Instead of the leaf spring 28, other spring arrangements could also be provided, which center the latching plunger in the latching position, but allow lateral evasion during the switching process in order to be able to surpass the unstable switching point more safely.

Claims (2)

  1. Cam-operated rotary switch comprising the following features:
    - an indexing camshaft carries a plurality of cams and spaced axially therefrom an indexing star (24);
    - the cams actuate electrical switch contacts;
    - the indexing star (24) cooperates with an interlocking element (20) in order to fix the camshaft in a respective predetermined angular position;
    - an indexing plunger (18) is displaceably mounted radially to the indexing camshaft axis (16) and prestressed by a spring (22) which pushes the interlocking element (20) of the indexing plunger (18) into an indexing recess in the indexing star (24);
    characterised in that
    - the interlocking element (20) together with the indexing plunger is mounted so as to be laterally movable to a limited degree, i.e. in the circumferential direction of the indexing star;
    - an extra spring (28) operates on the indexing plunger at right angles to the camshaft axis (16) and prestresses the said plunger into a midway centring position;
    - under the action of the additional centring spring (28), the indexing plunger (18) rotates the indexing star along with the camshaft into the respective predetermined angular position.
  2. Cam-operated rotary switch according to claim 1, characterised in that the extra spring is a leafspring (28) of U-shaped construction, that the leaf spring is anchored in the lower portion of an indexing compartment (12) and clasps the indexing plunger (18) and the pusher-type spring (22) surrounding the latter and that in its upper part the indexing compartment features a broadened portion (30) into which the side-pieces of the leaf spring can be displaced along with the interlocking element therebetween.
EP92118849A 1991-12-13 1992-11-04 Rotatable selector switch with cam shaft or cam wheel positionable by an indexing means Expired - Lifetime EP0549870B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4141110A DE4141110A1 (en) 1991-12-13 1991-12-13 ROTATIONAL SWITCH WITH A SWITCHING CAMSHAFT OR SWITCHING CAMS DISC WHICH CAN BE DETERMINED BY A LATCHING
DE4141110 1991-12-13

Publications (2)

Publication Number Publication Date
EP0549870A1 EP0549870A1 (en) 1993-07-07
EP0549870B1 true EP0549870B1 (en) 1996-03-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118849A Expired - Lifetime EP0549870B1 (en) 1991-12-13 1992-11-04 Rotatable selector switch with cam shaft or cam wheel positionable by an indexing means

Country Status (2)

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EP (1) EP0549870B1 (en)
DE (2) DE4141110A1 (en)

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WO2005122203A1 (en) * 2004-06-09 2005-12-22 Robertshaw Controls Company Appliance function switch

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FR2742914B1 (en) * 1995-12-22 1998-02-13 Valeo Climatisation ROTARY ELECTRIC SWITCH FOR A CONTROL PANEL, IN PARTICULAR FOR A HEATING, VENTILATION AND / OR AIR CONDITIONING DEVICE OF A MOTOR VEHICLE
DE19646226A1 (en) * 1996-03-19 1998-05-14 Bayerische Motoren Werke Ag Operating device for menu-controlled functions of a vehicle
DE19617133C1 (en) * 1996-04-29 1997-11-13 Siemens Ag Switches, in particular operating mode switches, or methods for assembling such a switch
DE29612394U1 (en) * 1996-07-17 1997-11-13 Gira Giersiepen Gmbh & Co Kg, 42477 Radevormwald Compression spring element, in particular for actuating electrical switch contacts
DE19802381C2 (en) * 1998-01-22 2000-10-12 Cherry Mikroschalter Gmbh Rotational position sensor
GB9808313D0 (en) * 1998-04-20 1998-06-17 Arcolectric Switches Plc Switch assembly
DE10041935A1 (en) * 2000-08-25 2002-03-07 Kostal Leopold Gmbh & Co Kg turntable
DE102007038547A1 (en) * 2007-08-16 2009-02-19 Leopold Kostal Gmbh & Co. Kg Rotary switch has manually operated rotary head and two catching devices, and both catching devices are cooperating with control track subjected to spring pressure
CN101937781B (en) * 2009-06-29 2013-06-19 西门子公司 Isolating switch
JP5182529B2 (en) * 2009-11-24 2013-04-17 住友電装株式会社 Dial switch
IT1402154B1 (en) * 2010-10-08 2013-08-28 Gabriele Maria Cirulli DYNAMIC JUNCTION APPARATUS FOR MULTICOPPIA TELEPHONE CABLES
CN103594275B (en) * 2012-08-15 2015-11-25 西门子公司 A kind of isolating switch
WO2014134683A1 (en) * 2013-03-08 2014-09-12 Rotacaster Wheel Limited Cam mechanism
DE102013216088A1 (en) * 2013-08-14 2015-02-19 BSH Bosch und Siemens Hausgeräte GmbH Rotary switch for electrical appliances with improved latching device
JP2023015660A (en) * 2021-07-20 2023-02-01 日本プラスト株式会社 Moderation adding device

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DE3327675C3 (en) * 1983-07-30 1993-09-30 Kloeckner Moeller Gmbh Switching chamber for cam switches

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005122203A1 (en) * 2004-06-09 2005-12-22 Robertshaw Controls Company Appliance function switch

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Publication number Publication date
DE59205854D1 (en) 1996-05-02
EP0549870A1 (en) 1993-07-07
DE4141110A1 (en) 1993-06-17

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