EP0956577B1 - Latching mechanism of a switching device - Google Patents

Latching mechanism of a switching device Download PDF

Info

Publication number
EP0956577B1
EP0956577B1 EP98909277A EP98909277A EP0956577B1 EP 0956577 B1 EP0956577 B1 EP 0956577B1 EP 98909277 A EP98909277 A EP 98909277A EP 98909277 A EP98909277 A EP 98909277A EP 0956577 B1 EP0956577 B1 EP 0956577B1
Authority
EP
European Patent Office
Prior art keywords
lever
bell
crank
latch
intermediate lever
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
EP98909277A
Other languages
German (de)
French (fr)
Other versions
EP0956577A1 (en
Inventor
Rainer Kreutzer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0956577A1 publication Critical patent/EP0956577A1/en
Application granted granted Critical
Publication of EP0956577B1 publication Critical patent/EP0956577B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/505Latching devices between operating and release mechanism
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/505Latching devices between operating and release mechanism
    • H01H2071/508Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force

Definitions

  • the invention relates to a switch lock for opening and closing contacts of a switching device that a Angle lever for actuating a lock mechanism, a ratchet lever and has an intermediate lever on which the angle lever is latched in the ON position, in which the The intermediate lever is latched by the one provided for release Pawl lever exists.
  • a generic switch lock is known. This is an example explained with reference to FIGS 6 and 7.
  • FIG 6 shows the switch lock in the ON position, in which the long arm of the intermediate lever latched to a ratchet lever and the latching of the angle lever on the short arm of the Intermediate lever exists.
  • the intermediate lever is the angle lever in the triggered Position transferred according to FIG 7.
  • the angle lever grips the end of the short arm Intermediate lever and holds it against the one acting on it Return spring force in the position shown.
  • the intermediate lever is released and swings in turn back to its starting position.
  • DE 38 29 366 A1 there is an electrical switch with a Locking arrangement described.
  • the switch points an electronic trigger circuit and also contains a reset spring in cooperation with a shift lock spring, to manually reset the switch an automatic trigger function.
  • the Reset spring allows the locking arrangement of the Switch is reset manually at a minimum Path length of the switch operating handle.
  • the invention has for its object a switch lock of the type mentioned above with regard to its triggering and Reset from the tripped state to the ON state to improve.
  • angle lever has a protrusion that when triggered via a nose formed on the ratchet lever moved its open position. That way it can be dependent the position of the ratchet lever from the position of the bell crank to be influenced. This enables the intermediate lever during a reset to keep rotatable in the desired manner without he latched on the latch lever.
  • Switch lock 1 shows a switch lock 1 of a switching device with a Bearing plate 2, an angle lever 3, an intermediate lever 4 and a ratchet lever 5, each on the bearing plate 2 are rotatably mounted.
  • Switch lock 1 is located here in the ON position, in which the lower end of FIG Angle lever 3 latched on the short arm of the intermediate lever 4 is.
  • With 6, the coupling point of the angle lever 3 with the Lever or lock mechanism not shown here.
  • By attacking at the coupling point 6, by the Arrow 7 designated spring force is the rotation of the Angle lever 3 in the OFF position.
  • In the ON position according to 1 is the intermediate lever loaded by a return spring 8 4 via the pawl lever 5 at the latching point 17 latched.
  • Pawl lever 5 On the one shown here in the closed position Pawl lever 5 is a nose 9 formed on the trigger of the ratchet lever 5, a projection 10 of the angle lever 3 attacks and in this way the pawl lever 5 in his open position moves.
  • the latch of the angle lever 3 takes place at the end of a ramp provided on the intermediate lever 4 11.
  • FIG. 2 shows a schematic diagram of the lever mechanism with the three bearing points 12, 13 and 15 for the mentioned levers 3, 4 and 5.
  • a compression spring 14 holds the latch lever 5 in its closed position according to FIG. 2.
  • the angle lever 3 is already on the ramp 11 of the Intermediate lever 4, which is already a small Angle in relation to its starting position over the latching point 17 is turned out. At the same time, the angle lever holds 3 with its projection 10 the pawl lever 5 still in its open position.

Abstract

The invention relates to a latching mechanism (1), characterized in that the intermediary lever (4) after release, springs back to its initial position, and in the released condition there is neither a working connection to the angle lever (13), nor to the ratchet lever (5). Depending on the position, the angle lever (3) holds the ratchet lever (5) in a more or less open position. On resetting, the angle lever (3) slides along a ramp (11), thus occasioning a controlled latching.

Description

Die Erfindung bezieht sich auf ein Schaltschloß zum Öffnen und Schließen von Kontakten eines Schaltgeräts, das einen Winkelhebel zur Betätigung einer Schloßmechanik, einen Klinkenhebel und einen Zwischenhebel aufweist, an dem der Winkelhebel in der EIN-Stellung verklinkt ist, in der zugleich die Verklinkung des Zwischenhebels durch den zur Auslösung vorgesehenen Klinkenhebel besteht.The invention relates to a switch lock for opening and closing contacts of a switching device that a Angle lever for actuating a lock mechanism, a ratchet lever and has an intermediate lever on which the angle lever is latched in the ON position, in which the The intermediate lever is latched by the one provided for release Pawl lever exists.

Ein gattungsgemäßes Schaltschloß ist bekannt. Dies wird beispielhaft anhand der FIG 6 und 7 erläutert.A generic switch lock is known. This is an example explained with reference to FIGS 6 and 7.

FIG 6 zeigt das Schaltschloß in der EIN-Stellung, in der der lange Arm des Zwischenhebels an einem Klinkenhebel verklinkt ist und die Verklinkung des Winkelhebels am kurzen Arm des Zwischenhebels besteht. Nach Freigabe des Winkelhebels durch den Zwischenhebel wird der Winkelhebel in die ausgelöste Stellung gemäß FIG 7 überführt. In dieser ausgelösten Stellung greift der Winkelhebel noch am Ende des kurzen Arms vom Zwischenhebel an und hält diesen entgegen der an ihm wirkenden Rückstellfederkraft in der dargestellten Position. Erst wenn der Winkelhebel bei Reset wieder seine Ausgangslage einnimmt, wird der Zwischenhebel freigegeben und schwenkt seinerseits in seine Ausgangsposition zurück.6 shows the switch lock in the ON position, in which the long arm of the intermediate lever latched to a ratchet lever and the latching of the angle lever on the short arm of the Intermediate lever exists. After releasing the angle lever the intermediate lever is the angle lever in the triggered Position transferred according to FIG 7. In this triggered position the angle lever grips the end of the short arm Intermediate lever and holds it against the one acting on it Return spring force in the position shown. First when the angle lever returns to its original position during a reset, the intermediate lever is released and swings in turn back to its starting position.

Bei dieser Lösung schleift der Winkelhebel beim Auslösevorgang während seines gesamten Bewegungsablaufs an dem kürzeren Arm des Zwischenhebels entlang. Der Winkelhebel und damit die gesamte Schloßmechanik werden hierdurch gebremst. Dies führt zu einer Erhöhung der Reaktionszeit des Schalters, die im Hinblick auf Kurzschlußabschaltungen unerwünscht ist. With this solution, the angle lever grinds during the triggering process during the entire course of movement on the shorter one Arm along the intermediate lever. The angle lever and thus the this locks the entire lock mechanism. this leads to to an increase in the response time of the switch, which in With regard to short-circuit shutdowns is undesirable.

In der DE 195 26 591 A1 ist ein elektrischer Schalter mit einer Hauptkontaktstelle und einer Nebenkontaktstelle offenbart, die beide über einen Schalthebel und einen mit diesem verbundenen Schaltschloß betätigbar sind. Das Schaltgerät umfaßt weiterhin eine durch einen Auslösehebel und einen Klinkenhebel gebildete Verklinkungsstelle. Über einen gelenkig mit einem Zwischenhebel verbundenen Steuerhebel des Schaltschlosses läßt sich die Hauptkontaktstelle schalten.DE 195 26 591 A1 describes an electrical switch with a Main contact point and a secondary contact point disclosed, both with a gear lever and one with this connected switch lock can be actuated. The switching device includes further one by a release lever and a ratchet lever formed latching point. About an articulated control lever of the switch lock connected with an intermediate lever the main contact point can be switched.

In der DE 38 29 366 A1 ist ein elektrischer Schalter mit einer Verriegelungsanordnung beschrieben. Der Schalter weist eine elektronische Auslöseschaltung auf und enthält außerdem eine Rücksetzfeder in Zusammenwirkung mit einer Schaltverriegelungsfeder, um ein manuelles Rücksetzen des Schalters nach einer automatischen Auslösefunktion sicherzustellen. Die Rücksetzfeder gestattet, daß die Verriegelungsanordnung des Schalters manuell zurückgesetzt wird bei einer minimalen Weglänge des Schalterbetätigungsgriffes.In DE 38 29 366 A1 there is an electrical switch with a Locking arrangement described. The switch points an electronic trigger circuit and also contains a reset spring in cooperation with a shift lock spring, to manually reset the switch an automatic trigger function. The Reset spring allows the locking arrangement of the Switch is reset manually at a minimum Path length of the switch operating handle.

Der DE 92 06 137 U1 ist ein Leistungsschalter mit einem Schaltschloß zu entnehmen, das einen Kipphebel, einen U-Bügel, eine Klinke sowie einen Klinkenhebel und einen Verbindungshebel zur Verbindung mit einer Schaltwelle enthält. Die Drehbewegung der Welle wird hier über Einzelhebel auf drei translatorisch bewegliche, über Stößel ansteuerbare Kontaktbrücken übertragen. Eine Ausschaltfeder stützt sich einerseits am Gehäuse des Leistungsschalters und andererseits an der Schaltwelle ab. Abhängig von der Schaltstellung wird die Länge des Hebelarms, an dem die Ausschaltfeder angreift, verändert. Bei EIN-Stellung wirkt ein kleiner Hebelarm auf die Schaltwelle, so daß hierbei die Schaltschloßbelastung minimiert wird. In der AUS-Stellung ist die Kraft der entspannten Ausschaltfeder möglichst groß, um die Kontaktlastfedern ganz aufdrücken zu können. Im vorliegenden Hebelmechanismus sind die aufeinander wirkenden Hebel zwar gelenkig, aber nicht lösbar miteinander verbunden.DE 92 06 137 U1 is a circuit breaker with a The switch lock can be found, which has a rocker arm, a U-bracket, a pawl and a ratchet lever and a connecting lever for connection to a selector shaft. The Rotational movement of the shaft is here on three levers Contact bridges that can be moved in a translatory manner and can be controlled by a plunger transfer. An opening spring is supported on the one hand on the housing of the circuit breaker and on the other the shift shaft. Depending on the switch position, the Length of the lever arm on which the opening spring acts is changed. In the ON position, a small lever arm acts on the Switch shaft, so that the switch load is minimized becomes. In the OFF position, the power is relaxed Switch-off spring as large as possible to the contact load springs completely to be able to press on. In the present lever mechanism are the interacting levers are articulated, but not releasably connected.

Bei den oben beschriebenen Lösungen wird bei Auslösung der Schalter infolge von Kurzschlüssen die gesamte Schloßmechanik mitbewegt, wodurch sich erhebliche Reaktionszeiten ergeben.In the solutions described above, the Switch due to short circuits the entire lock mechanism moves, which results in considerable response times.

Der Erfindung liegt die Aufgabe zugrunde, ein Schaltschloß der obengenannten Art hinsichtlich seiner Auslösung und der Rückstellung aus dem ausgelösten Zustand in den EIN-Zustand zu verbessern.The invention has for its object a switch lock of the type mentioned above with regard to its triggering and Reset from the tripped state to the ON state to improve.

Erfindungsgemäß wird die Aufgabe durch folgende Merkmale gelöst:

  • a) der Winkelhebel bewegt nach Auslösung des Klinkenhebels diesen in seine offene Position und behält diese während des ausgelösten Zustands bei,
  • b) im ausgelösten Zustand besteht keine Wirkverbindung zwischen dem Zwischenhebel und dem Winkelhebel.
  • According to the invention, the object is achieved by the following features:
  • a) after the ratchet lever has been released, the angle lever moves it into its open position and maintains it during the released state,
  • b) in the triggered state there is no operative connection between the intermediate lever and the angle lever.
  • Hierdurch ist es möglich, den Zwischenhebel derart zu gestalten, daß er nur auf einem relativ kurzen Weg bei der Auslösung durch den Zwischenhebel gebremst wird, wodurch sich schnellere Reaktionszeiten für die Abschaltung erreichen lassen.This makes it possible to design the intermediate lever in such a way that it is only on a relatively short path when triggered is braked by the intermediate lever, whereby achieve faster response times for the shutdown to let.

    Eine vorteilhafte Weiterbildung der Erfindung erhält man, wenn der Winkelhebel einen Vorsprung aufweist, der bei Auslösung über eine am Klinkenhebel angeformte Nase diesen in seine offene Position bewegt. Auf diese Weise kann abhängig von der Stellung des Winkelhebels die Position des Klinkenhebels beeinflußt werden. Dies ermöglicht beim Reset den Zwischenhebel in gewünschter Weise drehbar zu halten, ohne daß er an dem Klinkenhebel verklinkt.An advantageous development of the invention is obtained if the angle lever has a protrusion that when triggered via a nose formed on the ratchet lever moved its open position. That way it can be dependent the position of the ratchet lever from the position of the bell crank to be influenced. This enables the intermediate lever during a reset to keep rotatable in the desired manner without he latched on the latch lever.

    Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand einer Zeichnung näher erläutert. Es zeigen:

    FIG 1
    eine perspektivische Ansicht eines erfindungsgemäßen Schaltschlosses im EIN-Zustand,
    FIG 2
    eine Prinzipdarstellung des Schaltschlosses gemäß FIG 1 im EIN-Zustand,
    FIG 3
    eine Prinzipdarstellung des Schaltschlosses gemäß FIG 1 im ausgelösten Zustand,
    FIG 4
    eine Ansicht des Schaltschlosses in einer ersten Zwischenstellung beim Reset,
    FIG 5
    eine Ansicht des Schaltschlosses in einer zweiten Zwischenstellung beim Reset,
    FIG 6, FIG 7
    ein bereits bekanntes Schaltschloß in der EIN-Stellung und im ausgelösten Zustand.
    An embodiment of the invention is explained below with reference to a drawing. Show it:
    FIG. 1
    2 shows a perspective view of a switch lock according to the invention in the ON state,
    FIG 2
    2 shows a basic illustration of the switch lock according to FIG. 1 in the ON state,
    FIG 3
    2 shows a schematic diagram of the switch lock according to FIG. 1 in the released state,
    FIG 4
    a view of the key switch in a first intermediate position during a reset,
    FIG 5
    a view of the key switch in a second intermediate position during the reset,
    FIG 6, FIG 7
    an already known switch lock in the ON position and in the released state.

    FIG 1 zeigt ein Schaltschloß 1 eines Schaltgeräts mit einer Lagerplatine 2, einem Winkelhebel 3, einem Zwischenhebel 4 und einem Klinkenhebel 5, die jeweils auf der Lagerplatine 2 drehbar gelagert sind. Das Schaltschloß 1 befindet sich hier in der EIN-Stellung, in der das in der FIG 1 untere Ende des Winkelhebels 3 am kurzen Arm des Zwischenhebels 4 verklinkt ist. Mit 6 ist der Kopplungspunkt des Winkelhebels 3 mit der hier nicht dargestellten Hebel- bzw. Schloßmechanik bezeichnet. Durch die am Kopplungspunkt 6 angreifende, durch den Pfeil 7 bezeichnete Federkraft erfolgt die Drehung des Winkelhebels 3 in die AUS-Stellung. In der EIN-Stellung gemäß FIG 1 ist der durch eine Rückstellfeder 8 belastete Zwischenhebel 4 über den Klinkenhebel 5 an der Verklinkungsstelle 17 verklinkt. An dem hier in geschlossener Position dargestellten Klinkenhebel 5 ist eine Nase 9 angeformt, an der bei Auslösung des Klinkenhebels 5 ein Versprung 10 des Winkelhebels 3 angreift und auf diese Weise den Klinkenhebel 5 in seine offene Position bewegt. Die Verklinkung des Winkelhebels 3 erfolgt am Ende einer am Zwischenhebel 4 vorgesehenen Rampe 11.1 shows a switch lock 1 of a switching device with a Bearing plate 2, an angle lever 3, an intermediate lever 4 and a ratchet lever 5, each on the bearing plate 2 are rotatably mounted. Switch lock 1 is located here in the ON position, in which the lower end of FIG Angle lever 3 latched on the short arm of the intermediate lever 4 is. With 6, the coupling point of the angle lever 3 with the Lever or lock mechanism not shown here. By attacking at the coupling point 6, by the Arrow 7 designated spring force is the rotation of the Angle lever 3 in the OFF position. In the ON position according to 1 is the intermediate lever loaded by a return spring 8 4 via the pawl lever 5 at the latching point 17 latched. On the one shown here in the closed position Pawl lever 5 is a nose 9 formed on the trigger of the ratchet lever 5, a projection 10 of the angle lever 3 attacks and in this way the pawl lever 5 in his open position moves. The latch of the angle lever 3 takes place at the end of a ramp provided on the intermediate lever 4 11.

    FIG 2 zeigt eine Prinzipdarstellung des Hebelmechanismus mit den drei Lagerpunkten 12, 13 und 15 für die genannten Hebel 3, 4 und 5. Eine Druckfeder 14 hält den Klinkenhebel 5 in seiner geschlossenen Position gemäß FIG 2.2 shows a schematic diagram of the lever mechanism with the three bearing points 12, 13 and 15 for the mentioned levers 3, 4 and 5. A compression spring 14 holds the latch lever 5 in its closed position according to FIG. 2.

    Bei Auslösung des Klinkenhebels 5 wird der Winkelhebel aufgrund der in Pfeilrichtung 7 wirkenden Federkraft in den ausgelösten Zustand gedreht, in dem die Kontakte des betreffenden Schaltgeräts geöffnet sind.When the ratchet lever 5 is triggered, the angle lever is due the spring force acting in the direction of arrow 7 in the triggered State rotated in which the contacts of the concerned Switchgear are open.

    FIG 3 zeigt den ausgelösten Zustand, in dem der Vorsprung 10 des Winkelhebels 3 den Klinkenhebel 5 über seine Nase 9 in der offenen Position hält. Der Zwischenhebel 4 ist im ausgelösten Zustand in seiner Ausgangsstellung am Anschlag 16, in der lediglich die Rückstellfeder 8 angreift. Im übrigen ist der Zwischenhebel 4 um seinen Lagerpunkt 12 frei beweglich.3 shows the triggered state in which the projection 10 of the angle lever 3, the pawl lever 5 via its nose 9 in holds the open position. The intermediate lever 4 is triggered Condition in its starting position at the stop 16, in which only attacks the return spring 8. For the rest is the intermediate lever 4 freely movable about its bearing point 12.

    FIG 4 zeigt das Schaltschloß 1 in einer ersten Zwischenstellung bei Reset, d.h. den Übergang von dem ausgelösten Zustand in den EIN-Zustand, wobei die durch den Pfeil 18 angedeutete Drehung des Winkelhebels 3 um den Lagerpunkt 13 erfolgt.4 shows the switch lock 1 in a first intermediate position on reset, i.e. the transition from the triggered state in the ON state, the one indicated by the arrow 18 Rotation of the angle lever 3 about the bearing point 13 takes place.

    Der Winkelhebel 3 liegt hier bereits auf der Rampe 11 des Zwischenhebels 4 auf, der hierdurch bereits um einen kleinen Winkel gegenüber seiner Ausgangsposition über die Verklinkungsstelle 17 hinaus gedreht ist. Zugleich hält der Winkelhebel 3 mit seinem Vorsprung 10 den Klinkenhebel 5 noch in dessen offener Position. The angle lever 3 is already on the ramp 11 of the Intermediate lever 4, which is already a small Angle in relation to its starting position over the latching point 17 is turned out. At the same time, the angle lever holds 3 with its projection 10 the pawl lever 5 still in its open position.

    FIG 5 zeigt eine zweite Zwischenstellung beim Reset, in der die Rückstellung des Klinkenhebels 4 in seine geschlossene Position durch den Winkelhebel 3 freigegeben ist. Dabei befindet sich der Winkelhebel 3 kurz vor dem Ende der Rampe 11, d.h. er ist noch nicht an dem Zwischenhebel 4 verklinkt. Erst bei Erreichen des Endes der Rampe 11 gibt der Winkelhebel 4 den Zwischenhebel 3 frei und der Zwischenhebel 4 wird durch die Rückstellfeder 8 in Richtung Anschlag 16 zurückbewegt. Dabei erfolgt die Verklinkung des Winkelhebels am Zwischenhebel 3 und die Verklinkung des Zwischenhebels 3 am Klinkenhebel 5 wie in FIG 1 und 2 dargestellt.5 shows a second intermediate position during the reset, in which the return of the pawl lever 4 in its closed Position is released by the angle lever 3. Is located the angle lever 3 shortly before the end of the ramp 11, i.e. it is not yet latched to the intermediate lever 4. First when the end of the ramp 11 is reached, the angle lever 4 the intermediate lever 3 free and the intermediate lever 4 is by the return spring 8 is moved back in the direction of the stop 16. The angle lever is latched to the intermediate lever 3 and the latching of the intermediate lever 3 on the latch lever 5 as shown in FIG 1 and 2.

    Obwohl die vorliegende Erfindung unter Bezugnahme auf die in der beigefügten Zeichnung dargestellte Ausführungsform erläutert ist, sollte berücksichtigt werden, daß damit nicht beabsichtigt ist, die Erfindung nur auf die dargestellte Ausführungsform zu beschränken, sondern alle möglichen Änderungen, Modifizierungen und äquivalente Anordnungen, soweit sie vom Inhalt der Patentansprüche gedeckt sind, einzuschließen.Although the present invention with reference to the in of the accompanying drawing illustrated embodiment is, it should be borne in mind that this is not intended is, the invention only to the illustrated embodiment to limit, but all possible changes, Modifications and equivalent arrangements insofar as they are from Contents of the claims are covered.

    Claims (4)

    1. Switch lock (1) for opening and closing contacts of a switching device, which has a bell-crank lever (3) for actuating a lock mechanism, a latch lever (5) and an intermediate lever (4), at which the bell-crank lever (3) latches in the ON position, in which the latching of the intermediate lever (4) by the latch lever (5) provided for as a release device simultaneously takes place, characterised in that the bell-crank lever (3), the latch lever (5) and the intermediate lever (4) are arranged such that
      a) the bell-crank lever (3) after release of the latch lever (5) moves this to its open position and retains this during the released state,
      b) in the released state there is no functional connection between the intermediate lever (4) and the bell-crank lever (3).
    2. Switch lock in accordance with claim 1, characterised in that the intermediate lever (4) is held by spring pressure against a stop (16) in the released state and on reset the intermediate lever (4) is first moved by the bell-crank lever (3) from the stop (16) past the latching point (17) before the latch lever (5), having been released by the bell-crank lever (3), lies against the intermediate lever (4) which then after release by the bell-crank lever (3) is moved back to the stop (16) and thus latches with the latch lever (5).
    3. Switch lock in accordance with claims 1 or 2, characterised in that the bell-crank lever (3) has a projection (10) which when released by a nose (9) formed on a latch lever (5) moves this to its open position.
    4. Switch lock in accordance with one of the preceding claims, characterised in that the intermediate lever (4) has a ramp (11) along which the bell-crank lever (3) slides on reset until latching on the intermediate lever (4).
    EP98909277A 1997-02-03 1998-01-22 Latching mechanism of a switching device Expired - Lifetime EP0956577B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE1997103972 DE19703972C1 (en) 1997-02-03 1997-02-03 Latching/breaker mechanism e.g. for circuit-breaker
    DE19703972 1997-02-03
    PCT/DE1998/000200 WO1998034257A1 (en) 1997-02-03 1998-01-22 Latching mechanism of a switching device

    Publications (2)

    Publication Number Publication Date
    EP0956577A1 EP0956577A1 (en) 1999-11-17
    EP0956577B1 true EP0956577B1 (en) 2001-07-25

    Family

    ID=7819150

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98909277A Expired - Lifetime EP0956577B1 (en) 1997-02-03 1998-01-22 Latching mechanism of a switching device

    Country Status (4)

    Country Link
    EP (1) EP0956577B1 (en)
    CN (1) CN1163931C (en)
    DE (1) DE19703972C1 (en)
    WO (1) WO1998034257A1 (en)

    Families Citing this family (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10209262C1 (en) * 2002-03-01 2003-12-24 Moeller Gmbh Latching mechanism for low voltage switches
    KR100516943B1 (en) * 2003-12-26 2005-09-23 엘에스산전 주식회사 Structure of breaking apparatus for trip error protection of motor protected breaker and method of operating thereof
    DE102006044119B4 (en) * 2006-09-20 2018-03-08 Eaton Industries Gmbh Electrical switching device
    CN102568922B (en) * 2010-12-30 2015-02-11 中国船舶重工集团公司第七一三研究所 Load signal generating mechanism
    DE102012201260A1 (en) * 2012-01-30 2013-08-01 Siemens Aktiengesellschaft Switching unit for an electrical switching device and electrical switching device

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2851817C3 (en) * 1978-04-19 1984-10-18 Siemens AG, 1000 Berlin und 8000 München Low-voltage circuit breaker with a main pawl, an intermediate pawl and a locking element
    US4301346A (en) * 1980-06-23 1981-11-17 General Electric Company Circuit breaker trip latch assembly
    US4344054A (en) * 1981-03-04 1982-08-10 General Electric Company Latch assembly for static trip circuit breakers
    US4594491A (en) * 1984-09-28 1986-06-10 Westinghouse Electric Corp. Molded case circuit breaker with a trip mechanism having an intermediate latch lever
    US4789848A (en) * 1987-09-03 1988-12-06 General Electric Company Molded case circuit breaker latch and operating mechanism assembly
    DE9206137U1 (en) * 1992-05-07 1993-09-09 Siemens Ag Circuit breaker with a switch lock
    DE19526591B4 (en) * 1995-07-21 2005-04-21 Abb Patent Gmbh Electric switch

    Also Published As

    Publication number Publication date
    CN1163931C (en) 2004-08-25
    EP0956577A1 (en) 1999-11-17
    WO1998034257A1 (en) 1998-08-06
    CN1241290A (en) 2000-01-12
    DE19703972C1 (en) 1998-05-14

    Similar Documents

    Publication Publication Date Title
    EP0454963B1 (en) Switching mechanism for low tension switchgear
    EP2634787B1 (en) Switching lock of a circuit breaker
    DE2938858A1 (en) SWITCHING MECHANISM FOR CIRCUIT BREAKER
    DE4304771C1 (en) Switching device for multi-phase motor protection switch - cooperates with release lever of external auxiliary switch upon overcurrent release
    DE3505674C2 (en)
    EP0956577B1 (en) Latching mechanism of a switching device
    EP0956576B1 (en) Switching device with tripped position of the latching mechanism
    EP0956579B1 (en) Switching device with under-voltage auxiliary release
    EP0828277B1 (en) Circuit breaker and linked auxiliary switch
    EP0956578B1 (en) Fast connection switching device
    EP0091040B1 (en) Protective excess current circuit-breaking switch
    DE2914743C2 (en) Residual current circuit breaker
    DE3119165A1 (en) Automatic circuit breaker as a structural unit consisting of a line protection circuit breaker as well as auxiliary and signal switches
    EP1005060B1 (en) Undervoltage release device
    DE3903414C3 (en) Switch combination consisting of main and auxiliary switches
    DE2904211C2 (en) Residual current circuit breaker that is coupled to a line circuit breaker
    WO2000067275A1 (en) Circuit breaker for multipolar release
    DE4106939C2 (en)
    DE3009682A1 (en) MULTIPOLE CIRCUIT BREAKER
    DE703630C (en) Overcurrent circuit breaker with toggle handle
    DE2841821A1 (en) DRIVE DEVICE FOR ELECTRIC CIRCUIT BREAKERS WITH SHORT BREAK
    DE4023655C2 (en) Auxiliary switch arrangement for a manually operated motor protection switch
    DE102023104113A1 (en) Differential lock for an electrical differential protection device
    AT281963B (en) Circuit breaker
    DE2518093C2 (en) Toggle shadow gear for automatic switch

    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

    17P Request for examination filed

    Effective date: 19990720

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): FR IT

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    17Q First examination report despatched

    Effective date: 20000919

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): FR IT

    EN Fr: translation not filed
    EN Fr: translation not filed

    Free format text: BO 01/51 PAGES: 265, IL Y A LIEU DE SUPPRIMER: LA MENTION DE LA NON REMISE. LA REMISE EST PUBLIEE DANS LE PRESENT BOPI.

    ET Fr: translation filed
    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

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

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed
    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

    Effective date: 20050122

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: FR

    Payment date: 20070123

    Year of fee payment: 10

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20081029

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20080131