EP0746005B1 - Electrical switchgear - Google Patents

Electrical switchgear Download PDF

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Publication number
EP0746005B1
EP0746005B1 EP96108421A EP96108421A EP0746005B1 EP 0746005 B1 EP0746005 B1 EP 0746005B1 EP 96108421 A EP96108421 A EP 96108421A EP 96108421 A EP96108421 A EP 96108421A EP 0746005 B1 EP0746005 B1 EP 0746005B1
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EP
European Patent Office
Prior art keywords
pendulum
slide
switching device
switching
actuation
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
EP96108421A
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German (de)
French (fr)
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EP0746005A2 (en
EP0746005A3 (en
Inventor
Frank M. Claus
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ABB Patent GmbH
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ABB Patent GmbH
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Publication of EP0746005A2 publication Critical patent/EP0746005A2/en
Publication of EP0746005A3 publication Critical patent/EP0746005A3/en
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Publication of EP0746005B1 publication Critical patent/EP0746005B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02Details
    • H01H21/18Movable parts; Contacts mounted thereon
    • H01H21/22Operating parts, e.g. handle
    • H01H21/24Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/245Operating parts, e.g. handle biased to return to normal position upon removal of operating force the contact returning to its original state upon the next application of operating force
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force

Definitions

  • the invention relates to an electrical switching device, in particular Key switch, with an actuator, z. B. rocker switch, that returns to its original position after actuation, with a slide acted upon by at least a pendulum hinged to it and with one Switching element that works with the slide and with the pendulum and for actuating at least one contact arrangement serves.
  • Electrical switching devices are known whose actuating elements, for example, seesaws, always after switching return to their starting position. The keep switching components acted upon by the actuating element in the relevant switching device the respective switching position up to next actuation unchanged at.
  • the advantage of such Design of an electrical switching device is in that the overall aesthetic impression of the switching device is not is affected by different inclinations of the actuating element, because this is always the same position in the rest position occupies.
  • a swivel part is rotatably mounted, the both journals each have a flat, on which Spring bars resemble leaf springs and the swivel part in a center position. Furthermore, the swivel part with two pressure pieces arranged symmetrically to each other provided that work with the rocker switch by this in each case from a corner of the Swinging part molded bearing surface is applied.
  • the constructive inclination of the rocker switch opposite the pivoting part leads to the fact that only one of the two contact surfaces each pressure piece engages with the rocker switch comes, so that with each shift actuation the rocker switch the swivel part is loaded into the other position becomes.
  • a similar switching device in which also the movement of the actuator from a slide with a beveled Printing area and at least one pendulum arranged thereon executes a transverse movement and thereby also a swiveling movement Switching element is on the market as a button known.
  • the at least one pivotable pendulum arranged on the slide is in the form of an isosceles triangle, the designed as a swivel axis near the corner point
  • the pendulum's axis of symmetry intersects and in lateral bearing points is guided in the slide.
  • the switching element takes an inclined position in relation to the pendulum, so that depending on the respective switching position, the pendulum at Actuation with one of the two other corner points against the Slider bumps, experiences a certain deflection and the Brings slider into its other position.
  • One on Compression-supporting compression spring ensures that the pendulum in Always a middle position between the two deflection positions occupies.
  • the pendulum is integrally connected to the slide, that the articulated connection of the pendulum with the Slider is web-like and has a connection cross section has, which is dimensioned so that taking advantage of the elasticity of the material used to reset the pendulum required restoring force results when the pendulum is deflected.
  • this can easily by changing the cross section of the pendulum to the Slider can be varied between strong and weak resetting.
  • Pendulum and the slide are made of plastic. This makes possible an inexpensive series production with simultaneous Exploitation of weight advantages over manufacturing made of metal.
  • a special embodiment is characterized in that as a hinged connection of the pendulum with the slide a film hinge is provided.
  • two pendulums can be provided be symmetrical to the longitudinal axis of the slide at a distance are arranged to each other.
  • the pendulum is expediently designed as a flat part that of the end facing away from the articulated connection or formations are provided, which with the switching element work together to apply it.
  • Fig. 1 is a partial longitudinal section through an inventive Switching device 10 with a base upper part 12, in which a switching element 14 is pivotally mounted and with a slide 16 cooperates, which is in operative connection with an actuating element 18 via a nose 19 molded thereon with a molded on the slider 16 switch 17 in operative connection stands.
  • Pendulum 20 On the slider 16 is also a triangular, generally as Pendulum 20 designated pivot part, which is the movement the slide 16 transferred to the switching element 14, which in turn a contact assembly 22 actuates a fixed contact piece 24 and a movable contact piece 26 which is pivotally supported on a contact carrier 28 and by the 1 in the closed position shown in Fig. 2 Open position is pivotable.
  • the switching element 14, its known pivot bearing here is not shown in detail and which is the movable contact piece 26 loaded with a spring sleeve against the contact carrier 28, has one at its end facing away from the contact arrangement 22 arranged transversely to its longitudinal axis, penetrating the switching element Recess 15, which penetrated by the slider 16 which in turn is acted upon by a return spring 30, occupies the rest position shown in Fig. 1.
  • the pendulum 20 which is similar to an isosceles triangle is integral with the via a small connecting web 21 Slider 16 connected.
  • This web-like connection serves 21 of the pendulum 20 with the slider 16 simultaneously as a swivel joint for the pendulum, the pivot path of the pendulum 20 on the one hand and the restoring force resulting from its deflection on the other hand both from the elasticity of the used Material as well as from the design cross section of the connecting web 21 are determined.
  • Pendulum 20 engages with its upper half of symmetry 32 a molded on the switching element 14 switching web 34, which is the upper Limitation of the recess 15 forms, engages and transmits so the displacement of the slide 16 on the switching element 14, the thereupon around itself with the central axis of the slide 16 intersecting axis of rotation pivots counterclockwise.
  • the switching element 14 After reaching the end position of the slide shown in Fig. 2 16, the switching element 14 assumes the switching position according to FIG. 2, in which, on the basis of the exposure thus caused, the Contact arrangement 22 is open.
  • the main advantage of the present invention results from the fact that on the one hand the production of the invention Switchgear is significantly simplified because fewer parts too are mounted and secondly what is more meaningful Interference due to excessive friction due to Contamination by dust the pendulum's pivoting mobility 20 do not affect, since the pendulum in one piece on the Slider 16 is molded.
  • the Connection cross section in the form of a web 21 it is also possible adjust the restoring force of the pendulum 20.
  • connection cross-section is either above or below the end section designed here as a flat web of the web 16, to which the pendulum 20 then connects at an angle or the spring action results from torsion of the face of the section of the end section shown here of the pendulum 16 connecting connecting web.
  • the angle between the direction of movement of the slider 16 and the middle position of the switching element 14 is in the shown Example 90 °.
  • angles are between 0 ° and ⁇ 90 °, which means that the to be actuated contact point 22 between the slider 16 and the Actuator 18 is arranged so that the switching element is directed almost upwards, that is to the actuation side out.

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  • Push-Button Switches (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Tumbler Switches (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Lock And Its Accessories (AREA)
  • Valve Device For Special Equipments (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Slide Switches (AREA)

Abstract

The switch has a contact pad on a fixed carrier Ä24Ü that is selectively engaged by a contact on a movable carrier Ä26Ü that pivots about a point. The motion is produced by a manually operated rocker Ä18Ü that is supported on a central spindle ÄS1Ü. One end of the rocker engages an angled surface Ä17Ü on an element Ä20Ü that can pivot a small amount and is located against a spring loaded slide element Ä16Ü. This moves and causes a spring loaded element Ä14Ü to displace the movable contact carrier to open the contacts.

Description

Die Erfindung betrifft ein elektrisches Schaltgerät, insbesondere Tastschalter, mit einem Betätigungselement, z. B. Schalterwippe, das nach Betätigung in seine Ausgangsstellung zurückkehrt, mit einem hiervon beaufschlagten Schieber mit wenigstens einem hieran ausschwenkbar angelenkten Pendel und mit einem Schaltglied, das mit dem Schieber und mit dem Pendel zusammenarbeitet und zur Betätigung wenigstens einer Kontaktanordnung dient.The invention relates to an electrical switching device, in particular Key switch, with an actuator, z. B. rocker switch, that returns to its original position after actuation, with a slide acted upon by at least a pendulum hinged to it and with one Switching element that works with the slide and with the pendulum and for actuating at least one contact arrangement serves.

Es sind elektrische Schaltgeräte bekannt, deren Betätigungselemente, zum Beispiel Wippen, nach einer Schaltbetätigung stets wieder in ihre Ausgangsstellung zurückkehren. Dabei behalten die von dem Betätigungselement beaufschlagten Schaltbauteile in dem betreffenden Schaltgerät die jeweilige Schaltposition bis zur nächsten Betätigung unverändert bei. Der Vorteil einer derartigen Ausgestaltung eines elektrischen Schaltgerätes liegt darin, daß der ästhetische Gesamteindruck des Schaltgeräts nicht beeinträchtigt wird durch unterschiedliche Neigung des Betätigungselements, weil dieses in Ruhestellung stets die gleiche Position einnimmt.Electrical switching devices are known whose actuating elements, for example, seesaws, always after switching return to their starting position. The keep switching components acted upon by the actuating element in the relevant switching device the respective switching position up to next actuation unchanged at. The advantage of such Design of an electrical switching device is in that the overall aesthetic impression of the switching device is not is affected by different inclinations of the actuating element, because this is always the same position in the rest position occupies.

Aus der DE 39 12 798 C2 ist ein elektrisches Schaltgerät mit einer Schaltmechanik gemäss dem Oberbegriff des Anspruchs 1 bekannt, die ein als Wippe ausgebildeten Betätigungselement, ein Schieberteil und eine schwenkbar gelagerte Schaltwippe zur Beaufschlagung einer in einem Gehäusesockel angeordneten Kontaktanordnung aufweist. Das Betätigungselement beaufschlagt hierbei das Schieberteil mit einer Nase, die an einer am Schieberteil angeformten Schräge anliegt, wodurch eine Kraftumlenkung erreicht wird und das Schieberteil gegen die Kraft einer Rückstellfeder quer zur Betätigungsrichtung der Wippe verschoben wird.From DE 39 12 798 C2 is an electrical switching device with a Switching mechanism known according to the preamble of claim 1, which is an actuator designed as a rocker, a slide part and a pivoted Switch rocker for loading a arranged in a housing base Has contact arrangement. Actuated on the actuating element here the slide part with a nose that on a is formed on the slide part formed slope, whereby a force redirection is reached and the slide part against the force of one Return spring moved transversely to the direction of actuation of the rocker becomes.

Im Schieberteil ist ein Schwenkteil drehbeweglich gelagert, dessen beide Lagerzapfen jeweils eine Abflachung aufweisen, an welchen blattfederähnliche Federstege anliegen und das Schwenkteil in eine Mittenstellung beaufschlagen. Ferner ist das Schwenkteil mit zwei symmetrisch zueinander angeordneten Druckstücken versehen, die mit der Schaltwippe zusammenarbeiten, indem diese jeweils von einer an jeder der Schwenkachse abgewandten Ecke des Schwenkteils angeformten Anlagefläche beaufschlagt wird. Die konstruktiv vorgesehene Schrägstellung der Schaltwippe gegenüber dem Schwenkteil führt dazu, daß jeweils nur eine der beiden Anlageflächen jedes Druckstückes mit der Schaltwippe in Eingriff kommt, so daß bei jeder Schaltbetätigung die Schaltwippe über das Schwenkteil in die jeweils andere Position beaufschlagt wird.In the slide part, a swivel part is rotatably mounted, the both journals each have a flat, on which Spring bars resemble leaf springs and the swivel part in a center position. Furthermore, the swivel part with two pressure pieces arranged symmetrically to each other provided that work with the rocker switch by this in each case from a corner of the Swinging part molded bearing surface is applied. The constructive inclination of the rocker switch opposite the pivoting part leads to the fact that only one of the two contact surfaces each pressure piece engages with the rocker switch comes, so that with each shift actuation the rocker switch the swivel part is loaded into the other position becomes.

Ein ähnliches Schaltgerät, bei welchem ebenfalls die Bewegung des Betätigungselements von einem Schieber mit einer angeschrägten Druckfläche und wenigstens einem daran angeordneten Pendel eine Querbewegung ausführt und hierdurch ebenfalls ein schwenkbewegliches Schaltglied beaufschlagt, ist als Taster am Markt bekannt.A similar switching device, in which also the movement of the actuator from a slide with a beveled Printing area and at least one pendulum arranged thereon executes a transverse movement and thereby also a swiveling movement Switching element is on the market as a button known.

Das am Schieber angeordnete wenigstens eine schwenkbare Pendel ist in Form eines gleichschenkligen Dreiecks ausgebildet, dessen als Steckachse ausgebildete Schwenkachse nahe dem Eckpunkt die Symmetrieachse des Pendels schneidet und in seitlichen Lagerstellen im Schieber geführt ist. Bei Betätigung des Schiebers durch die Wippe gelangt das Pendel hierbei mit dem ebenfalls schwenkbar gelagerten Schaltglied in Eingriff. Das Schaltglied nimmt jeweils gegenüber dem Pendel eine Schrägstellung ein, so daß abhängig von der jeweiligen Schaltposition das Pendel bei Betätigung mit einem der beiden übrigen Eckpunkte gegen den Schieber stößt, hierbei eine gewisse Auslenkung erfährt und den Schieber in seine jeweils andere Position bringt. Eine sich am Schieber abstützende Druckfeder sorgt dafür, daß das Pendel in Ruhe stets eine Mittenlage zwischen den beiden Auslenkpositionen einnimmt.The at least one pivotable pendulum arranged on the slide is in the form of an isosceles triangle, the designed as a swivel axis near the corner point The pendulum's axis of symmetry intersects and in lateral bearing points is guided in the slide. When the slide is actuated the pendulum also passes through the rocker pivotally mounted switching element in engagement. The switching element takes an inclined position in relation to the pendulum, so that depending on the respective switching position, the pendulum at Actuation with one of the two other corner points against the Slider bumps, experiences a certain deflection and the Brings slider into its other position. One on Compression-supporting compression spring ensures that the pendulum in Always a middle position between the two deflection positions occupies.

Als ungünstig bei dieser Gestaltung hat sich eine gewisse Anfälligkeit gegen Verunreinigungen, zum Beispiel durch Staub, und eine hierdurch verursachte Schwergängigkeit dieses Schaltsystems gezeigt. Das Eindringen von Staub läßt sich nie völlig ausschließen, der sich an den Lagerstellen absetzt und so mitunter infolge unzureichender Schwenkwege des Pendels aufgrund zu hoher Lagerreibung zu Fehlbetätigungen führen kann. Darüberhinaus ist die Montage des bekannten Schaltgerätes hinsichtlich der Lagerung und Justierung des Pendels zeitlich und teilebezogen aufwendig.A certain vulnerability has proven to be unfavorable with this design against contamination, for example through dust, and a resulting stiffness of this switching system shown. The ingress of dust can never be completely ruled out, that settles at the bearings and so sometimes due to insufficient swinging of the pendulum due to too high Bearing friction can lead to incorrect actuation. Beyond that the assembly of the known switching device with regard to storage and adjustment of the pendulum time-consuming and part-related.

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, ein Schaltgerät der eingangs genannten Art zu schaffen, das unanfällig gegen Verunreinigungen ist und eine hiervon nicht beeinträchtigte Funktionssicherheit aufweist und möglichst einfach gestaltet ist.Starting from this prior art, it is the object of the invention to create a switching device of the type mentioned in the introduction, that is insensitive to contamination and one of them is not has impaired functional reliability and as simple as possible is designed.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst. Demgemäß ist vorgesehen, daß das Pendel einstückig mit dem Schieber gelenkig verbunden ist, daß die gelenkige Verbindung des Pendels mit dem Schieber stegartig ausgebildet ist und einen Anschlußquerschnitt aufweist, der so bemessen ist, daß unter Ausnutzung der Elastizität des verwendeten Materials die zur Rückstellung des Pendels erforderliche Rückstellkraft bei Auslenkung des Pendels resultiert. Mit anderen Worten, abhängig von der als erforderlich ermittelten oder bestimmten Rückstellkraft, kann diese einfach durch Veränderung des Anschlußquerschnitts des Pendels an den Schieber zwischen stark und schwach rückstellend variiert werden.This object is achieved by the features of the characterizing Part of claim 1 solved. Accordingly, it is provided that the pendulum is integrally connected to the slide, that the articulated connection of the pendulum with the Slider is web-like and has a connection cross section has, which is dimensioned so that taking advantage of the elasticity of the material used to reset the pendulum required restoring force results when the pendulum is deflected. In other words, depending on the one determined to be necessary or certain restoring force, this can easily by changing the cross section of the pendulum to the Slider can be varied between strong and weak resetting.

Eine bevorzugte Weiterbildung der Erfindung sieht vor, daß das Pendel und der Schieber aus Kunststoff gefertigt sind. Dies ermöglicht eine kostengünstige Serienfertigung unter gleichzeitiger Ausnutzung von Gewichtsvorteilen gegenüber einer Herstellung aus Metall. A preferred development of the invention provides that Pendulum and the slide are made of plastic. this makes possible an inexpensive series production with simultaneous Exploitation of weight advantages over manufacturing made of metal.

Eine besondere Ausführungsform ist dadurch gekennzeichnet, daß als gelenkige Verbindung des Pendels mit dem Schieber ein Filmscharnier vorgesehen ist.A special embodiment is characterized in that as a hinged connection of the pendulum with the slide a film hinge is provided.

In Weiterbildung der Erfindung können zwei Pendel vorgesehen sein, welche symmetrisch zur Längsachse des Schiebers im Abstand zueinander angeordnet sind.In a further development of the invention, two pendulums can be provided be symmetrical to the longitudinal axis of the slide at a distance are arranged to each other.

Zweckmäßigerweise ist das Pendel als Flachteil ausgebildet, an dessen der gelenkigen Verbindung abgewandtem Ende Einformungen oder Anformungen vorgesehen sind, die mit dem Schaltglied zu dessen Beaufschlagung zusammenarbeiten.The pendulum is expediently designed as a flat part that of the end facing away from the articulated connection or formations are provided, which with the switching element work together to apply it.

Diese und weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.These and other advantageous embodiments of the invention are the subject of the subclaims.

Anhand eines in der schematischen Zeichnung dargestellten Ausführungsbeispiels sollen die Erfindung, vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung sowie besondere Vorteile, die mit der Erfindung verbunden sind, näher erläutert und beschrieben werden.Using an exemplary embodiment shown in the schematic drawing are the invention, advantageous developments and embodiments of the invention and special advantages, which are associated with the invention, explained in more detail and to be discribed.

Es zeigen:

Fig. 1
einen ausschnittweisen Längsschnitt durch ein Schaltgerät gemäß der Erfindung in Ruhestellung;
Fig. 2
einen ausschnittweisen Längsschnitt durch das Schaltgerät gemäß Fig. 1 in einer ersten Schaltstellung;
Fig. 3
einen ausschnittweisen Längsschnitt durch das Schaltgerät gemäß Fig. 1 in Ruhestellung nach dem Umschalten und
Fig. 4
einen ausschnittweisen Längsschnitt durch das Schaltgerät gemäß Fig. 1 in einer zweiten Schaltstellung.
Show it:
Fig. 1
a fragmentary longitudinal section through a switching device according to the invention in the rest position;
Fig. 2
a partial longitudinal section through the switching device according to Figure 1 in a first switching position.
Fig. 3
a fragmentary longitudinal section through the switching device according to FIG. 1 in the rest position after switching and
Fig. 4
a partial longitudinal section through the switching device according to FIG. 1 in a second switching position.

In Fig. 1 ist ein ausschnittweiser Längsschnitt durch ein erfindungsgemäßes Schaltgerät 10 mit einem Sockeloberteil 12, in welchem ein Schaltglied 14 schwenkbeweglich gelagert ist und mit einem Schieber 16 zusammenarbeitet, der in Wirkverbindung mit einem Betätigungselement 18 über eine hieran angeformte Nase 19 mit einer am Schieber 16 angeformten Schaltschräge 17 in Wirkverbindung steht.In Fig. 1 is a partial longitudinal section through an inventive Switching device 10 with a base upper part 12, in which a switching element 14 is pivotally mounted and with a slide 16 cooperates, which is in operative connection with an actuating element 18 via a nose 19 molded thereon with a molded on the slider 16 switch 17 in operative connection stands.

Am Schieber 16 ist ferner ein dreieckförmiges, allgemein als Pendel 20 bezeichnetes Schwenkteil angeordnet, welches die Bewegung des Schiebers 16 auf das Schaltglied 14 übertragt, das seinerseits eine Kontaktanordnung 22 betätigt, die ein festes Kontaktstück 24 sowie ein bewegliches Kontaktstück 26 aufweist, das auf einem Kontaktträger 28 schwenkbar abgestützt ist und von der in Fig. 1 gezeigten Schließstellung in die in Fig. 2 gezeigte Offenstellung verschwenkbar ist.On the slider 16 is also a triangular, generally as Pendulum 20 designated pivot part, which is the movement the slide 16 transferred to the switching element 14, which in turn a contact assembly 22 actuates a fixed contact piece 24 and a movable contact piece 26 which is pivotally supported on a contact carrier 28 and by the 1 in the closed position shown in Fig. 2 Open position is pivotable.

Das Schaltglied 14, dessen an sich bekannte Schwenklager hier nicht näher gezeigt ist und welches das bewegliche Kontaktstück 26 mit einer Federhülse gegen den Kontaktträger 28 beaufschlagt, weist an seinem der Kontaktanordnung 22 abgewandten Ende eine quer zu seiner Längsachse angeordnete, das Schaltglied durchdringende Ausnehmung 15 auf, welche vom Schieber 16 durchgriffen ist, der seinerseits von einer Rückstellfeder 30 beaufschlagt, die in Fig. 1 gezeigte Ruhestellung einnimmt.The switching element 14, its known pivot bearing here is not shown in detail and which is the movable contact piece 26 loaded with a spring sleeve against the contact carrier 28, has one at its end facing away from the contact arrangement 22 arranged transversely to its longitudinal axis, penetrating the switching element Recess 15, which penetrated by the slider 16 which in turn is acted upon by a return spring 30, occupies the rest position shown in Fig. 1.

Das einem gleichschenkligen Dreieck ähnlich gestaltete Pendel 20 ist über einen kleinen Verbindungssteg 21 einstückig mit dem Schieber 16 verbunden. Dabei dient diese stegartige Verbindung 21 des Pendels 20 mit dem Schieber 16 gleichzeitig als Schwenkgelenk für das Pendel, wobei der Schwenkweg des Pendels 20 einerseits und die bei seiner Auslenkung resultierende Rückstellkraft andererseits sowohl von der Elastizität des verwendeten Materials als auch von dem konstruktiv vorgesehenen Querschnitts des Verbindungssteges 21 bestimmt sind.The pendulum 20, which is similar to an isosceles triangle is integral with the via a small connecting web 21 Slider 16 connected. This web-like connection serves 21 of the pendulum 20 with the slider 16 simultaneously as a swivel joint for the pendulum, the pivot path of the pendulum 20 on the one hand and the restoring force resulting from its deflection on the other hand both from the elasticity of the used Material as well as from the design cross section of the connecting web 21 are determined.

Bei Betätigung des Betätigungselements 18 führt dieses eine Schwenkbewegung um eine etwas oberhalb des Schaltgliedes 14 angeordnete Schwenkachse "S1" im Uhrzeigersinn aus und drückt hierbei mit seiner Nase 19 gegen die Schaltschräge 17 des Schiebers 16, so daß der Schieber 16 gegen die Rückstellkraft der Rückstellfeder 30 verschoben wird und schließlich eine Endstellung entsprechend Fig. 2 einnimmt.When actuating the actuating element 18, this performs a pivoting movement about a pivot axis "S 1 " arranged somewhat above the switching element 14 in a clockwise direction and presses with its nose 19 against the inclined face 17 of the slide 16, so that the slide 16 against the restoring force of the return spring 30 is shifted and finally assumes an end position according to FIG. 2.

Während dieser Betätigung gelangt das horizontal ausgerichtete Pendel 20 mit seiner oberen Symmetriehälfte 32 in Eingriff mit einem am Schaltglied 14 angeformten Schaltsteg 34, der die obere Begrenzung der Ausnehmung 15 bildet, in Eingriff und überträgt so die Verschiebung des Schiebers 16 auf das Schaltglied 14, das daraufhin um seine mit der Mittelachse des Schiebers 16 sich schneidenden Drehachse im Gegenuhrzeigersinn schwenkt.During this actuation, the horizontally aligned comes Pendulum 20 engages with its upper half of symmetry 32 a molded on the switching element 14 switching web 34, which is the upper Limitation of the recess 15 forms, engages and transmits so the displacement of the slide 16 on the switching element 14, the thereupon around itself with the central axis of the slide 16 intersecting axis of rotation pivots counterclockwise.

Nach Erreichen der in Fig. 2 gezeigten Endstellung des Schiebers 16 nimmt das Schaltglied 14 die Schaltposition gemäß Fig. 2 ein, bei welcher aufgrund der hierdurch erfolgten Beaufschlagung die Kontaktanordnung 22 geöffnet ist.After reaching the end position of the slide shown in Fig. 2 16, the switching element 14 assumes the switching position according to FIG. 2, in which, on the basis of the exposure thus caused, the Contact arrangement 22 is open.

Nach Loslassen des Betätigungselements 18 wird dieses über die Schaltschräge 17 des Schiebers 16 aufgrund der Rückstellkraft der Rückstellfeder 30 in seine Ausgangsstellung entsprechend Fig. 1 zurückgestellt, während das Schaltglied 14, wie aus Fig. 3 ersichtlich ist, die neue Schaltposition beibehält.After releasing the actuating element 18, this is via the Control slope 17 of the slider 16 due to the restoring force the return spring 30 in its starting position accordingly 1, while the switching element 14, as shown in FIG. 3 can be seen, maintains the new switching position.

Bei einer erneuten Betätigung des Betätigungselements 18, wird wiederum der Schieber durch die auf der Schaltschräge 17 des Schiebers 16 wirkende Nase 19 nach links bewegt. Dabei gelangt die untere Symmetriehälfte 33 des Pendels 32, wie aus Fig. 3 gut erkennbar ist, zunächst in Eingriff mit der unteren Begrenzung der Ausnehmung 15 im Schaltglied 14, die sich unterhalb dessen Drehachse "S2" befindet, und bewegt das Schaltglied 14 auf seinem weiteren Verschiebeweg in die in Fig. 4 gezeigte Schaltposition, wobei gleichzeitig die Rückstellfeder 30 gespannt wird. Nach Loslassen des Betätigungselements 18 erfolgt in gleicher Weise, wie zu Fig. 2 beschrieben, die Rückstellung des Schiebers 16 und damit einhergehend die Rückstellung des Betätigungselements 18, wobei das Schaltglied 14 seine Schaltposition gemäß Fig. 4 beibehält.When the actuating element 18 is actuated again, again the slider by the on the bevel 17 of the Slider 16 acting nose 19 moved to the left. Here comes the lower half of symmetry 33 of the pendulum 32, as shown in FIG. 3 is recognizable, initially in engagement with the lower limit the recess 15 in the switching element 14, which is below it Axis of rotation "S2", and moves the switching element 14 on his another displacement into the switching position shown in Fig. 4, the return spring 30 being tensioned at the same time. After releasing the actuating element 18, the same takes place Way, as described in Fig. 2, the reset of the slide 16 and the associated resetting of the actuating element 18, wherein the switching element 14 according to its switching position Fig. 4 maintains.

Der wesentliche Vorteil der vorliegenden Erfindung resultiert daraus, daß zum einen die Herstellung des erfindungsgemäßen Schaltgeräts wesentlich vereinfacht ist, da weniger Teile zu montieren sind und daß zweitens, was noch bedeutungsvoller ist, Störeinflüsse infolge übermäßiger Reibung aufgrund von Verunreinigungen durch Staub die Schwenkbeweglichkeit des Pendels 20 nicht beeinträchtigen, da das Pendel einstückig an den Schieber 16 angespritzt ist. Durch entsprechende Gestaltung des Anschlußquerschnittes in Form eines Steges 21 ist es ferner möglich die Rückstellkraft des Pendels 20 einzustellen.The main advantage of the present invention results from the fact that on the one hand the production of the invention Switchgear is significantly simplified because fewer parts too are mounted and secondly what is more meaningful Interference due to excessive friction due to Contamination by dust the pendulum's pivoting mobility 20 do not affect, since the pendulum in one piece on the Slider 16 is molded. By designing the Connection cross section in the form of a web 21, it is also possible adjust the restoring force of the pendulum 20.

Abweichend von der in den Figuren 1 bis 4 dargestellten Verbindung des Pendels 20 mit dem Schieber 16 ist auch eine parallele oder winklige Anlenkung des Pendels 20 am Schieber 16 möglich. Dabei befindet sich der Anschlußquerschnitt entweder oberhalb bzw. unterhalb des hier als Flachsteg ausgebildeten Endabschnittes des Steges 16, an welchem das Pendel 20 dann winkelig anschließt oder aber die Federwirkung resultiert aus einer Torsion des stirnseitig an die hier gezeigte Schnittfläche des Endabschnitts des Pendels 16 anschließenden Verbindungssteges.Deviating from the connection shown in Figures 1 to 4 of the pendulum 20 with the slider 16 is also a parallel one or angular articulation of the pendulum 20 on the slider 16 possible. The connection cross-section is either above or below the end section designed here as a flat web of the web 16, to which the pendulum 20 then connects at an angle or the spring action results from torsion of the face of the section of the end section shown here of the pendulum 16 connecting connecting web.

Der Winkel zwischen der Bewegungsrichtung des Schiebers 16 und der Mittelstellung des Schaltgliedes 14 beträgt beim gezeigten Beispiel 90°. Durch entsprechende andere Gestaltung kann dieser Winkel jedoch zwischen 0° und ± 90° betragen, das heißt, daß die zu betätigende Kontaktstelle 22 zwischen dem Schieber 16 und dem Betätigungselement 18 angeordnet ist, so daß das Schaltglied quasi nach oben gerichtet ist, das heißt zur Betätigungsseite hin.The angle between the direction of movement of the slider 16 and the middle position of the switching element 14 is in the shown Example 90 °. By appropriate other design this can However, angles are between 0 ° and ± 90 °, which means that the to be actuated contact point 22 between the slider 16 and the Actuator 18 is arranged so that the switching element is directed almost upwards, that is to the actuation side out.

Claims (5)

  1. A switching device (10), especially a momentary-contact switch with an actuating element (18) such as a switch rocker which returns to its initial position after the actuation, with a slide (16) activated thereby with at least one pendulum (20) swivellably articulated thereon and with a switching member (14) which co-operates with the slide (16) and the pendulum (20) and is used for actuating at least one contact arrangement (22), with the pendulum (20) automatically returning to an idle position after each actuation and the idle position being a middle position between two mutually opposite deflections, characterized in that the pendulum (20) is integrally connected with the slide (16) in a hinged manner and the hinged connection (21) of the pendulum (20) with the slide (16) is provided with a bridge-like arrangement and comprises a conductor size which is dimensioned such that by using the elasticity of the employed material the restoring force required for returning the pendulum (20) is obtained on deflecting the pendulum (20).
  2. A switching device as claimed in claim 1, characterized in that the pendulum (20) and the slide (16) are made of plastic.
  3. A switching device as claimed in claim 1 and/or 2, characterized in that a film hinge is provided as the hinged connection (21) of the pendulum (20) with the slide.
  4. A switching device as claimed in one of the preceding claims, characterized in that two pendulums (20, 32) are provided which are disposed at a distance from one another symmetrically to the longitudinal axis of the slide (16).
  5. A switching device as claimed in one of the preceding claims, characterized in that the pendulum (20, 32) is arranged as a flat part at whose end which is averted from the hinged connection there are provided moulded or attached parts which co-operate with the switching member for its actuation.
EP96108421A 1995-06-02 1996-05-28 Electrical switchgear Expired - Lifetime EP0746005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520239A DE19520239A1 (en) 1995-06-02 1995-06-02 Electrical switching device
DE19520239 1995-06-02

Publications (3)

Publication Number Publication Date
EP0746005A2 EP0746005A2 (en) 1996-12-04
EP0746005A3 EP0746005A3 (en) 1998-05-06
EP0746005B1 true EP0746005B1 (en) 2002-03-06

Family

ID=7763493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108421A Expired - Lifetime EP0746005B1 (en) 1995-06-02 1996-05-28 Electrical switchgear

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EP (1) EP0746005B1 (en)
AT (1) ATE214197T1 (en)
DE (2) DE19520239A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817097B4 (en) * 1998-04-17 2005-06-02 Abb Patent Gmbh Monostable electrical service switching device
DE102009012937B4 (en) * 2009-03-12 2012-01-19 Abb Ag Switch insert of an electrical installation device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2548674C3 (en) * 1975-10-30 1982-11-11 Paul Hochköpper & Co, 5880 Lüdenscheid Electrical push button switch
US5047598A (en) * 1987-10-28 1991-09-10 Mcgill Manufacturing Company, Inc. Safety rocker with improved actuator mounting
DE3912798A1 (en) * 1989-04-19 1990-10-25 Jung Gmbh Albrecht Rocker operated switch - has contact operated by spring loaded, insert moved through dead centre by action of rocker coupled slide
DE4042219C1 (en) * 1990-12-29 1992-04-23 Abb Patent Gmbh, 6800 Mannheim, De
DE4124594A1 (en) * 1991-07-25 1993-01-28 Kostal Leopold Gmbh & Co Kg Electrical switch for operating vehicle lights, indicator, windscreen wiper etc. - has contact element on spring-loaded input actuator located with small clearance relative to switching arm

Also Published As

Publication number Publication date
EP0746005A2 (en) 1996-12-04
DE59608820D1 (en) 2002-04-11
DE19520239A1 (en) 1996-12-05
ATE214197T1 (en) 2002-03-15
EP0746005A3 (en) 1998-05-06

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