EP1042710B1 - Locking device - Google Patents

Locking device Download PDF

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Publication number
EP1042710B1
EP1042710B1 EP98965255A EP98965255A EP1042710B1 EP 1042710 B1 EP1042710 B1 EP 1042710B1 EP 98965255 A EP98965255 A EP 98965255A EP 98965255 A EP98965255 A EP 98965255A EP 1042710 B1 EP1042710 B1 EP 1042710B1
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EP
European Patent Office
Prior art keywords
locking
switching
switching unit
blocking
locking plate
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
EP98965255A
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German (de)
French (fr)
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EP1042710A2 (en
Inventor
Walter Gilgen
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
Kloeckner Moeller GmbH
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Publication date
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Publication of EP1042710A2 publication Critical patent/EP1042710A2/en
Application granted granted Critical
Publication of EP1042710B1 publication Critical patent/EP1042710B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/26Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • H01H9/262Interlocking, locking, or latching mechanisms for interlocking two or more switches using flexible transmission elements, e.g. Bowden cable

Definitions

  • the invention relates to a locking device according to the preamble of claim 1.
  • Such locking devices serve that only one of several low-voltage switchgear, in particular Circuit breakers that can be turned on.
  • DE 44 06 236 A1 discloses a locking device for at least two with each other by a flexible link, in particular Bowden cable, connected switching devices, but also for in connection with Inserts or door interlocks standing switching devices known, wherein the locking device assigned to each switching device neutral position in which all switching devices are unlocked and one by the respective switched-on switching device brought about an active position in which other switching device is locked.
  • the switching shaft of each switching device is in operative connection with a curved locking washer a locking member connected to the respective end of the connecting member is applied.
  • the locking disk adjusts when the switching device is switched on the connecting link via the linearly displaceable locking link, that the control shaft operatively connected to the associated locking disk of the other switching device by its locking member at the other end of the Link is held against rotation by locking the locking member engages in a hole in the locking disc.
  • the invention is therefore based on the object of a securely operating locking device to be indicated with lower application forces.
  • the locking washer and the locking member, which to the one switching device belong, are crosswise via a connecting link with the locking member or the locking disc belonging to the other switching device, connected.
  • the locking device according to the invention is independent of the type of drive of the switching device, be it a rocker arm drive or a rotary drive or a motor drive. In the latter case, the lock works even in the event of a power failure. Improper opening also causes the contact system of one of the switching devices, for example as a result of welded Switch contacts that the switching on of the other switching device is effectively prevented.
  • the invention Locking device requires relatively low forces to act of the locking elements and is due to their self-positioning effect relatively independent of tolerances of the means used, in particular of those of the flexible links.
  • the coupling of the selector shaft with the associated one is advantageous Locking disc through a driver pin that runs through a side wall of the switching device engages in the switching shaft. It is advantageous if one half of the locking device in a side with the Switching device to be connected insulating material housing is arranged.
  • the insulating housing expediently consists of a shell-like part and a lid.
  • the locking member is advantageously designed as a lever with two arms with which on the one hand the associated link and on the other hand the associated Blocking curve section interacts.
  • the locking device, the associated Switching shafts of the switching devices are loaded in such a way that the dynamics the associated contact systems is adversely affected.
  • the locking members it is advantageous to the locking members in to promote beneficial senses with one spring element each. In the same Advantageous senses act, interacting with the locking disks Spring elements, the dead center behavior of the movement of the switching shafts and thus the switching dynamics of the switching devices influence positively.
  • the operative connection of the locking members with each is advantageous one or more auxiliary switches. This can be used, for example, on a remote Make a message about the status of the switching devices or the locking device and or or an additional electrical lock of motor drives for the switching devices.
  • the locking device 1 consists of two identical device halves 10a and 10b, which have two flexible Bowden cables Links 11a and 11b connected and each to a switching device 2a and 2b are attached laterally.
  • the two by interrupted Lines indicated switching devices 2a, 2b are in the drawn Representation with respect to the drawing level in front of the device halves 10a and 10b and are shown in the switched-off state.
  • Each device half 10a and 10b is enclosed by an insulating material housing 12, that of a shell-like part 13 and one with this over Screw connections 15 to be connected cover 14, which in turn via further screw connections 16 on the side of the switching device 2a or 2b is attached.
  • each device half 10a or 10b Locking disc 17a and 17b and a locking member 18a and 18b mounted.
  • the locking disk 17a or 17b is centered in an axis of rotation 19 stored and carries a driver 20, which is bent by an elongated Opening 21 of the lid 14 and through such an opening in the side wall of the switching device 2a or 2b extends and into a side Part of the rotating control shaft of the associated switching device 2a or 2b engages, thereby coupling the switching shafts with one locking disk each 17a and 17b is produced.
  • the locking member 18a or 18b is a two-armed lever, each mounted about a central pivot axis 22 a first lever arm 23a or 23b and a second lever arm 24a or 24b.
  • the first link 11a is eccentrically at one end the locking disc 17a of the one device half 10a and with the the other end on the first lever arm 23b of the locking member 18b of the other Device half 10b attached.
  • the second link 11 b with one end eccentrically on the locking disc 17b of the other device half 10b and with the other end on the first lever arm 23a of the locking member 18a of the one device half 10a attached.
  • the second lever arm 24a or 24b of the locking member 18a or 18b is located at the end in the area of action of a blocking curve section 25a or 25b of the associated locking disk 17a or 17b.
  • the Switching device 2a can be switched on.
  • the switching shaft rotates when switched on of the switching device 2a clockwise and thus through the coupling the locking disk 17a also via the driver 20.
  • This will the first connecting member 11a is acted upon in the direction of arrow F and causes the other switching device 2b to pivot Locking member 18b in a counterclockwise direction, causing its second lever arm 24b in the area of the locking curve section 25b of the associated locking disk 17b arrives.
  • the other switching device 2b also turn on, then the intended turn on motion whose shift shaft is effectively blocked because the shift shaft of the switching device 2b is coupled to the locking disk 17b, which in turn is blocking Engages with the second lever arm 24b of the locking member 18b and is prevented from further clockwise rotation.
  • the locking device 1 prevents that after switching on one of the switching devices 2a or 2b the respective other switching device 2b or 2a can also be switched on.
  • Auxiliary switches 32 are arranged in the vicinity of the blocking element 18a and 18b, which are operatively connected to the second lever arm 24a or 24b.
  • the Auxiliary switches 32 take appropriate depending on the position of the locking members 24a and 24b Switching states that are not used as signaling and / or Command signals can be processed further.
  • the locking member 18a or 18b is opposite to the direction F of its train application by the second Link 11b and 11a acted upon by a first spring element 26.
  • the first spring element designed as a helical compression spring 26 is supported between one in the shell-like part 13 of the insulating material housing 12 trained support 28 and the first lever arm 23a or 23b of the locking member 18a or 18b.
  • the effect of the first Spring element 26 is that in one device half 10a or 10b of the locking device 1 in the rest position shown Locking element 18a or 18b from the locking curve section 25a or 25b of the associated Locking disc 17a and 17b is pivoted and thus via the operative connection with the connecting member 11b or 11a of the blocking curve section 25b and 25a of the locking disc 17b and 17a in the other device half 11b or 11a safely from the second lever arm 24b or 24a of the associated locking member 18b or 18a is turned away.
  • the spring elements 26 are designed with regard to their spring force so that they in the off position of the switching device 2a or 2b, the locking member 18a or 18b clockwise so that its second lever arm 24a and 24b actuated the auxiliary switch 32, the actuating plunger with an opposing spring force are applied.
  • the lock washer 17a, 17b is acted upon by a second spring element 27. That as helical compression spring formed second spring element 27 is on a spring plunger 29 mounted between one in the shell-like part 13 trained plunger guide 30 and a peripheral pin 31 of Locking washer 17a and 17b supported.
  • the spring plunger 29 is arranged that when switching the switching device 2a or 2b on or off Pin 31 the imaginary connecting line between the axis of rotation 19 of the Locking disc 17a or 18a and the plunger guide 31 and thus passes through a point of maximum force application.
  • the lock washer 17a and 17b thus forms a dead center system with the second spring element 27, which has the purpose of the switching shaft of the associated switching device 2a or 2b when switching on negative effects of the locking device 1 to relieve.

Description

Technisches GebietTechnical field

Die Erfindung betrifft eine Verriegelungsvorrichtung nach dem Oberbegriff des Anspruches 1. Derartige Verriegelungsvorrichtungen dienen dazu, daß nur eines von mehreren Niederspannungs-Schaltgeräten, insbesondere Leistungsschaltern, eingeschaltet werden kann.The invention relates to a locking device according to the preamble of claim 1. Such locking devices serve that only one of several low-voltage switchgear, in particular Circuit breakers that can be turned on.

Stand der TechnikState of the art

Aus der DE 44 06 236 A1 ist eine Verriegelungsvorrichtung für mindestens zwei miteinander durch jeweils ein flexibles Verbindungsglied, insbesondere Bowdenzug, verbundene Schaltgeräte, aber auch für im Zusammenhang mit Einschüben oder Türverriegelungen stehende Schaltgeräte bekannt, wobei die jeweils einem Schaltgerät zugeordnete Verriegelungsvorrichtung eine neutrale Position, in der alle Schaltgeräte unverriegelt sind, und eine durch das jeweilige eingeschaltete Schaltgerät bewirkte aktive Position, in der das andere Schaltgerät verriegelt ist, hat. Die Schaltwelle jedes Schaltgerätes steht mit jeweils einer kurvigen Verriegelungsscheibe in Wirkverbindung, an der ein mit dem jeweiligen Ende des Verbindungsgliedes verbundenes Sperrglied anliegt. Beim Einschalten des Schaltgerätes verstellt die Verriegelungsscheibe das Verbindungsglied über das linear verschiebliche Sperrglied so, daß die mit der zugehörigen Verriegelungsscheibe wirkverbunde Schaltwelle des anderen Schaltgerätes durch dessen Sperrglied am anderen Ende des Verbindungsgliedes verdrehsicher gehalten wird, indem das Sperrglied sperrend in eine Bohrung der Verriegelungsscheibe eingreift. Von Nachteil sind der relativ hohe Kraftbedarf des auf Druck beanspruchten Verbindungsgliedes und die damit verbundenen Toleranzprobleme.DE 44 06 236 A1 discloses a locking device for at least two with each other by a flexible link, in particular Bowden cable, connected switching devices, but also for in connection with Inserts or door interlocks standing switching devices known, wherein the locking device assigned to each switching device neutral position in which all switching devices are unlocked and one by the respective switched-on switching device brought about an active position in which other switching device is locked. The switching shaft of each switching device is in operative connection with a curved locking washer a locking member connected to the respective end of the connecting member is applied. The locking disk adjusts when the switching device is switched on the connecting link via the linearly displaceable locking link, that the control shaft operatively connected to the associated locking disk of the other switching device by its locking member at the other end of the Link is held against rotation by locking the locking member engages in a hole in the locking disc. Are disadvantageous the relatively high power requirement of the connecting element under pressure and the associated tolerance problems.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt daher die Aufgabe zugrunde, eine sicher arbeitende Verriegelungsvorrichtung mit geringeren Beaufschlagungskräften anzugeben.The invention is therefore based on the object of a securely operating locking device to be indicated with lower application forces.

Ausgehend von einer Verriegelungsvorrichtung der eingangs genannten Art wird die Aufgabe erfindungsgemäß durch die kennzeichnenden Merkmale des unabhängigen Anspruches gelöst, während den Unteransprüchen vorteilhafte Weiterbildungen der Erfindung zu entnehmen sind.Starting from a locking device of the type mentioned the task is inventively by the characterizing features of the independent claim solved, while the subclaims advantageous Further developments of the invention can be found.

Die Verriegelungsscheibe und das Sperrglied, die zu dem einen Schaltgerät gehören, sind über jeweils ein Verbindungsglied kreuzweise mit dem Sperrglied bzw. der Verriegelungsscheibe, die zu dem anderen Schaltgerät gehören, verbunden. Durch den sperrenden Eingriff des Sperrgliedes auf die Schaltwelle des jeweiligen Schaltgerätes über die zugehörige Verriegelungsscheibe ist die erfindungsgemäße Verriegelungsvorrichtung unabhängig von der Antriebsart des Schaltgerätes, sei es ein Kipphebelantrieb, ein Drehantrieb oder ein Motorantrieb. Im letzteren Falle funktioniert die Verriegelung auch bei Stromausfall. Ebenso bewirkt eine nicht ordnungsgemäße Öffnung des Kontaktsystems eines der Schaltgeräte, beispielsweise infolge verschweißter Schaltkontakte, daß das Einschalten des anderen Schaltgerätes wirksam verhindert wird. Beim Versuch, zwei Schaltgeräte gleichzeitig einzuschalten, findet entweder über die Verriegelungsvorrichtung ein Wettlauf statt, in dessen Ergebnis ein Schaltgerät einschaltet und das andere Schaltgerät verriegelt wird, oder beide Schaltgeräte sind im Extremfäll über die Verriegelungsvorrichtung gegenseitig gegen Einschalten blockiert. Denn mit Sicherheit greift durch die versuchte Einschaltbewegung der Schaltwelle eines der Schaltgeräte sofort das Sperrglied am anderen Schaltgerät blockierend in den Sperrkurvenabschnitt der zugehörigen Verriegelungsscheibe und damit der Schaltwelle des anderen Schaltgerätes ein. Die erfindungsgemäße Verriegelungsvorrichtung erfordert relativ geringe Kräfte zur Beaufschlagung der verriegelnden Elemente und ist durch ihre selbstpositionierende Wirkung relativ unabhängig von Toleranzen der verwendeten Mittel, insbesondere von denen der flexiblen Verbindungsglieder.The locking washer and the locking member, which to the one switching device belong, are crosswise via a connecting link with the locking member or the locking disc belonging to the other switching device, connected. By the locking engagement of the locking member on the Switching shaft of the respective switching device via the associated locking disc the locking device according to the invention is independent of the type of drive of the switching device, be it a rocker arm drive or a rotary drive or a motor drive. In the latter case, the lock works even in the event of a power failure. Improper opening also causes the contact system of one of the switching devices, for example as a result of welded Switch contacts that the switching on of the other switching device is effectively prevented. When trying to switch on two switching devices at the same time, finds a race either via the locking device instead, as a result of which one switching device switches on and the other switching device is locked, or in extreme cases both switching devices are via the locking device mutually blocked against switching on. Because with Safety comes into play through the attempted switch-on movement of the selector shaft one of the switching devices immediately blocking the blocking element on the other switching device in the locking curve section of the associated locking disc and thus the switching shaft of the other switching device. The invention Locking device requires relatively low forces to act of the locking elements and is due to their self-positioning effect relatively independent of tolerances of the means used, in particular of those of the flexible links.

Vorteilhaft gestaltet sich die Kopplung der Schaltwelle mit der zugehörigen Verriegelungsscheibe durch einen Mitnehmerstift, der durch eine Seitenwand des Schaltgerätes in die Schaltwelle eingreift. Dazu ist es von Vorteil, wenn jeweils eine Hälfte der Verriegelungsvorrichtung in einem seitlich mit dem Schaltgerät zu verbindenden Isolierstoffgehäuse angeordnet ist. Das Isolierstoffgehäuse besteht zweckmäßigerweise aus einem schalenartigen Teil und einem Deckel.The coupling of the selector shaft with the associated one is advantageous Locking disc through a driver pin that runs through a side wall of the switching device engages in the switching shaft. It is advantageous if one half of the locking device in a side with the Switching device to be connected insulating material housing is arranged. The insulating housing expediently consists of a shell-like part and a lid.

Das Sperrglied ist vorteilhaft als Hebel mit zwei Armen ausgebildet, mit dem einerseits das zugehörige Verbindungsglied und anderseits der zugehörige Sperrkurvenabschnitt zusammenwirkt.The locking member is advantageously designed as a lever with two arms with which on the one hand the associated link and on the other hand the associated Blocking curve section interacts.

Im allgemeinen werden durch die Verriegelungsvorrichtung die damit verbundenen Schaltwellen der Schaltgeräte in der Weise belastet, daß die Dynamik der zugehörigen Kontaktsysteme negativ beeinflußt wird. Um diesen Einfluß zu kompensieren, insbesondere bei Betätigung von federkraftbeaufschlagten Hilfsschaltern durch die Sperrglieder, ist es vorteilhaft, die Sperrglieder im förderlichen Sinne mit je einem Federelement zu beaufschlagen. Im gleichen vorteilhaften Sinne wirken weitere, mit den Verriegelungsscheiben zusammenwirkende Federelemente, die durch ein Totpunktverhalten den Bewegungsverlauf der Schaltwellen und damit die Schaltdynamik der Schaltgeräte positiv beeinflussen. In general, the locking device, the associated Switching shafts of the switching devices are loaded in such a way that the dynamics the associated contact systems is adversely affected. About this influence to compensate, especially when actuating spring-loaded Auxiliary switches through the locking members, it is advantageous to the locking members in to promote beneficial senses with one spring element each. In the same Advantageous senses act, interacting with the locking disks Spring elements, the dead center behavior of the movement of the switching shafts and thus the switching dynamics of the switching devices influence positively.

Vorteilhaft gestaltet sich die Wirkverbindung des Sperrglieder mit jeweils einem oder mehreren Hilfsschaltern. Damit kann beispielsweise an einer entfernten Stelle eine Meldung über den Zustand der Schaltgeräte bzw. der Verriegelungsvorrichtung und bzw. oder eine zusätzliche, elektrische Verriegelung von Motorantrieben für die Schaltgeräte realisiert werden.The operative connection of the locking members with each is advantageous one or more auxiliary switches. This can be used, for example, on a remote Make a message about the status of the switching devices or the locking device and or or an additional electrical lock of motor drives for the switching devices.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Die Erfindung soll nachstehend an einem Ausführungsbeispiel, aus dem weiterer Vorteile zu ersehen sind, näher erläutert werden. Die einzige Figur 1 der zugehörigen Zeichnung zeigt eine mit zwei Niederspannungs-Schaltgeräten, vorzugsweise Leistungsschaltern, verbundene erfindungsgemäße Verriegelungsvorrichtung in gebrochen geschnittener Darstellung.The invention is based on an embodiment from further advantages can be seen, are explained in more detail. The only figure 1 the accompanying drawing shows one with two low-voltage switchgear, preferably circuit breakers, connected according to the invention Locking device in broken section.

Bester Weg zur Ausführung der ErfindungBest way to carry out the invention

Die Verriegelungsvorrichtung 1 besteht aus zwei identischen Vorrichtungshälften 10a und 10b, die über zwei als Bowdenzüge ausgebildete flexible Verbindungsglieder 11a und 11b verbunden und an jeweils einem Schaltgerät 2a bzw. 2b seitlich befestigt sind. Die beiden durch unterbrochene Linien angedeuteten Schaltgeräte 2a, 2b befinden sich in der gezeichneten Darstellung bezüglich- der Zeichenebene jeweils vor den Vorrichtungshälften 10a bzw. 10b und sind im ausgeschalteten Zustand dargestellt. Jede Vorrichtungshälfte 10a bzw. 10b ist von einem Isolierstoffgehäuse 12 eingeschlossen, das aus einem schalenartigen Teil 13 und einem mit diesem über Schraubverbindungen 15 zu verbindenden Deckel 14 besteht, der seinerseits über weitere Schraubverbindungen 16 seitlich am Schaltgerät 2a bzw. 2b befestigt ist. The locking device 1 consists of two identical device halves 10a and 10b, which have two flexible Bowden cables Links 11a and 11b connected and each to a switching device 2a and 2b are attached laterally. The two by interrupted Lines indicated switching devices 2a, 2b are in the drawn Representation with respect to the drawing level in front of the device halves 10a and 10b and are shown in the switched-off state. Each device half 10a and 10b is enclosed by an insulating material housing 12, that of a shell-like part 13 and one with this over Screw connections 15 to be connected cover 14, which in turn via further screw connections 16 on the side of the switching device 2a or 2b is attached.

In dem Isolierstoffgehäuse 12 jeder Vorrichtungshälfte 10a bzw. 10b ist eine Verriegelungsscheibe 17a bzw. 17b sowie ein Sperrglied 18a bzw. 18b gelagert. Die Verriegelungsscheibe 17a bzw. 17b ist in einer Drehachse 19 zentrisch gelagert und trägt einen Mitnehmer 20, der durch eine länglich gebogene Öffnung 21 des Deckels 14 sowie durch eine ebensolche Öffnung in der Seitenwand des Schaltgerätes 2a bzw. 2b reicht und in einen seitlichen Teilbereich der rotierenden Schaltwelle des zugehörigen Schaltgerätes 2a bzw. 2b greift, wodurch eine Kopplung der Schaltwellen mit je einer Verriegelungsscheibe 17a bzw. 17b hergestellt ist. Das Sperrglied 18a bzw. 18b ist ein um eine mittige Schwenkachse 22 gelagerter zweiarmiger Hebel mit je einem ersten Hebelarm 23a bzw. 23b und einem zweiten Hebelarm 24a bzw. 24b. Das erste Verbindungsglied 11a ist mit einem Ende exzentrisch an der Verriegelungsscheibe 17a der einen Vorrichtungshälfte 10a und mit dem anderen Ende an dem ersten Hebelarm 23b des Sperrgliedes 18b der anderen Vorrichtungshälfte 10b befestigt. Dementsprechend ist das zweite Verbindungsglied 11 b mit einem Ende exzentrisch an der Verriegelungsscheibe 17b der anderen Vorrichtungshälfte 10b und mit dem anderen Ende an dem ersten Hebelarm 23a des Sperrgliedes 18a der einen Vorrichtungshälfte 10a befestigt. Der zweite Hebelarm 24a bzw. 24b des Sperrgliedes 18a bzw. 18b befindet sich endseitig im Einwirkungsbereich eines Sperrkurvenabschnittes 25a bzw. 25b der zugehörigen Verriegelungsscheibe 17a bzw. 17b.There is one in the insulating material housing 12 of each device half 10a or 10b Locking disc 17a and 17b and a locking member 18a and 18b mounted. The locking disk 17a or 17b is centered in an axis of rotation 19 stored and carries a driver 20, which is bent by an elongated Opening 21 of the lid 14 and through such an opening in the side wall of the switching device 2a or 2b extends and into a side Part of the rotating control shaft of the associated switching device 2a or 2b engages, thereby coupling the switching shafts with one locking disk each 17a and 17b is produced. The locking member 18a or 18b is a two-armed lever, each mounted about a central pivot axis 22 a first lever arm 23a or 23b and a second lever arm 24a or 24b. The first link 11a is eccentrically at one end the locking disc 17a of the one device half 10a and with the the other end on the first lever arm 23b of the locking member 18b of the other Device half 10b attached. Accordingly, the second link 11 b with one end eccentrically on the locking disc 17b of the other device half 10b and with the other end on the first lever arm 23a of the locking member 18a of the one device half 10a attached. The second lever arm 24a or 24b of the locking member 18a or 18b is located at the end in the area of action of a blocking curve section 25a or 25b of the associated locking disk 17a or 17b.

Die Funktion der Verriegelungsvorrichtung 1 wird nachfolgend beschrieben. Von den beiden ausgeschalteten Schaltgeräten 2a, 2b soll beispielsweise das Schaltgerät 2a eingeschaltet werden. Beim Einschalten rotiert die Schaltwelle des Schaltgerätes 2a im Uhrzeigersinn und damit durch die Kopplung über den Mitnehmer 20 ebenso die Verriegelungsscheibe 17a. Dadurch wird das erste Verbindungsglied 11a in Pfeilrichtung F auf Zug beaufschlagt und bewirkt eine Schwenkung des dem anderen Schaltgerät 2b zugeordneten Sperrgliedes 18b im Gegenuhrzeigersinn, wodurch dessen zweiter Hebelarm 24b in den Bereich des Sperrkurvenabschnittes 25b der zugehörigen Verriegelungsscheibe 17b gelangt. Wird nun versucht, das andere Schaltgerät 2b ebenfalls einzuschalten, dann wird die beabsichtigte Einschaltbewegung deren Schaltwelle wirksam blockiert, da die Schaltwelle des Schaltgerätes 2b mit der Verriegelungsscheibe 17b gekoppelt ist, die ihrerseits in sperrenden Eingriff mit dem zweiten Hebelarm 24b des Sperrgliedes 18b gelangt und damit an einer weiteren Drehung im Uhrzeigersinn gehindert ist. Die Verriegelungsvorrichtung 1 verhindert demnach, daß nach dem Einschalten eines der Schaltgeräte 2a oder 2b das jeweilig andere Schaltgerät 2b bzw. 2a ebenfalls eingeschaltet werden kann.The function of the locking device 1 is described below. Of the two switched-off switching devices 2a, 2b, for example, the Switching device 2a can be switched on. The switching shaft rotates when switched on of the switching device 2a clockwise and thus through the coupling the locking disk 17a also via the driver 20. This will the first connecting member 11a is acted upon in the direction of arrow F and causes the other switching device 2b to pivot Locking member 18b in a counterclockwise direction, causing its second lever arm 24b in the area of the locking curve section 25b of the associated locking disk 17b arrives. Now try the other switching device 2b also turn on, then the intended turn on motion whose shift shaft is effectively blocked because the shift shaft of the switching device 2b is coupled to the locking disk 17b, which in turn is blocking Engages with the second lever arm 24b of the locking member 18b and is prevented from further clockwise rotation. The locking device 1 prevents that after switching on one of the switching devices 2a or 2b the respective other switching device 2b or 2a can also be switched on.

In der Nähe des Sperrgliedes 18a und 18b sind Hilfsschalter 32 angeordnet, die in Wirkverbindung mit dem zweiten Hebelarm 24a bzw. 24b stehen. Die Hilfsschalter 32 nehmen je nach Stellung der Sperrglieder 24a und 24b entsprechende Schaltzustände ein, die an anderer Stelle als Melde- und/oder Befehlssignale weiterverarbeitet werden können. Das Sperrglied 18a bzw. 18b ist entgegen der Richtung F seiner Zugbeaufschlagung durch das zweite Verbindungsglied 11b bzw. 11a durch ein erstes Federelement 26 beaufschlagt. Das als schraubenförmige Druckfeder ausgebildete erste Federelement 26 stützt sich zwischen einer im schalenartigen Teil 13 des Isolierstoffgehäuses 12 ausgebildeten Abstützung 28 und dem ersten Hebelarm 23a bzw. 23b des Sperrgliedes 18a bzw. 18b ab. Die Wirkung des ersten Federelementes 26 besteht darin, daß in der einen Vorrichtungshälfte 10a bzw. 10b der Verriegelungsvorrichtung 1 in der dargestellten Ruhelage das Sperrglied 18a bzw. 18b vom Sperrkurvenabschnitt 25a bzw. 25b der zugehörigen Verriegelungsscheibe 17a bzw. 17b abgeschwenkt ist und damit über die Wirkverbindung mit dem Verbindungsglied 11b bzw. 11a der Sperrkurvenabschnitt 25b bzw. 25a der Verriegelungsscheibe 17b bzw. 17a in der anderen Vorrichtungshälfte 11b bzw. 11a sicher vom zweiten Hebelarm 24b bzw. 24a des zugehörigen Sperrgliedes 18b bzw. 18a weggedreht ist. Die Federelemente 26 sind hinsichtlich ihrer Federkraft so ausgelegt, daß sie in der Ausschaltstellung des Schaltgerätes 2a bzw. 2b das Sperrglied 18a bzw. 18b im Uhrzeigersinn derart beaufschlagen, daß dessen zweiter Hebelarm 24a bzw. 24b die Hilfsschalter 32 betätigt, deren Betätigungsstößel mit einer entgegenwirkenden Federkraft beaufschlagt sind. Die Verriegelungsscheibe 17a, 17b ist durch ein zweites Federelement 27 beaufschlagt. Das als schraubenförmige Druckfeder ausgebildete zweite Federelement 27 ist auf einem Federstößel 29 gelagert, der sich zwischen einer im schalenartigen Teil 13 ausgebildeten Stößelführung 30 und einem peripheren Zapfen 31 der Verriegelungsscheibe 17a bzw. 17b abstützt. Der Federstößel 29 ist so angeordnet, daß beim Ein- oder Ausschalten des Schaltgerätes 2a bzw. 2b der Zapfen 31 die gedachte Verbindungslinie zwischen der Drehachse 19 der Verriegelungsscheibe 17a bzw. 18a und der Stößelführung 31 und damit einen Punkt maximaler Kraftbeaufschlagung durchläuft. Die Verriegelungsscheibe 17a bzw. 17b bildet also mit dem zweiten Federelement 27 ein Totpunktsystem, das den Zweck hat, die Schaltwelle des zugeordneten Schaltgerätes 2a bzw. 2b beim Einschalten von negativen Rückwirkungen der Verriegelungsvorrichtung 1 zu entlasten.Auxiliary switches 32 are arranged in the vicinity of the blocking element 18a and 18b, which are operatively connected to the second lever arm 24a or 24b. The Auxiliary switches 32 take appropriate depending on the position of the locking members 24a and 24b Switching states that are not used as signaling and / or Command signals can be processed further. The locking member 18a or 18b is opposite to the direction F of its train application by the second Link 11b and 11a acted upon by a first spring element 26. The first spring element designed as a helical compression spring 26 is supported between one in the shell-like part 13 of the insulating material housing 12 trained support 28 and the first lever arm 23a or 23b of the locking member 18a or 18b. The effect of the first Spring element 26 is that in one device half 10a or 10b of the locking device 1 in the rest position shown Locking element 18a or 18b from the locking curve section 25a or 25b of the associated Locking disc 17a and 17b is pivoted and thus via the operative connection with the connecting member 11b or 11a of the blocking curve section 25b and 25a of the locking disc 17b and 17a in the other device half 11b or 11a safely from the second lever arm 24b or 24a of the associated locking member 18b or 18a is turned away. The spring elements 26 are designed with regard to their spring force so that they in the off position of the switching device 2a or 2b, the locking member 18a or 18b clockwise so that its second lever arm 24a and 24b actuated the auxiliary switch 32, the actuating plunger with an opposing spring force are applied. The lock washer 17a, 17b is acted upon by a second spring element 27. That as helical compression spring formed second spring element 27 is on a spring plunger 29 mounted between one in the shell-like part 13 trained plunger guide 30 and a peripheral pin 31 of Locking washer 17a and 17b supported. The spring plunger 29 is arranged that when switching the switching device 2a or 2b on or off Pin 31 the imaginary connecting line between the axis of rotation 19 of the Locking disc 17a or 18a and the plunger guide 31 and thus passes through a point of maximum force application. The lock washer 17a and 17b thus forms a dead center system with the second spring element 27, which has the purpose of the switching shaft of the associated switching device 2a or 2b when switching on negative effects of the locking device 1 to relieve.

Claims (8)

  1. Locking arrangement comprising at least two low-voltage switching units (2a; 2b) which are connected via a flexible connecting element (11a), in particular a Bowden cable, which are to be locked to prevent them being switched on at the same time, and the switching shafts of which are each coupled to a locking plate (17a; 17b) it being possible for the locking plates (17a; 17b) to be brought into operative connection with in each case one blocking element (18a; 18b), characterized
    in that the locking plate (17a) on one switching unit (2a) is connected to the blocking element (18b), which is mounted pivotably on the other switching unit (2b), via the connecting element (11a), and the blocking element (18a), which is mounted pivotably on one switching unit (2a), is connected to the locking plate (17b) on the other switching unit (2b) via a second flexible connecting element (11b), and
    in that when one of the switching units (2a; 2b) is switched on, the rotary movement of the associated locking plate (17a; 17b), via the tensile loading of the corresponding connecting element (11a; 11b), causes the blocking element (18b; 18a) on the respectively other switching unit (2b; 2a) to pivot with locking action against a blocking-cam section (25b; 25a) of the associated locking plate (17b; 17a).
  2. Locking arrangement according to Claim 1, characterized in that the locking plate (17a; 17b) has a carry-along element (20) engaging through a side wall of the switching unit (2a; 2b) into a lateral sub-region of the switching shaft.
  3. Locking arrangement according to Claim 2, characterized in that in each case one locking plate (17a; 17b) and one blocking element (18a; 18b) are mounted in an insulating-material housing (12), the carry-along element (20) extending out of one side of the latter, and the insulating-material housing (12) can be fitted laterally on the switching unit (2a; 2b).
  4. Locking arrangement according to Claim 3, characterized in that the insulating-material housing (12) comprises a shell-like part (13) and a cover (14) which closes the same.
  5. Locking arrangement according to one of the preceding claims, characterized in that the blocking element (18a; 18b) is a two-armed lever, on the first lever arm (23a; 23b) of which the connecting element (11b; 11a) acts, and the second lever arm (24a; 24b) of which can be brought into connection, at the end, with the blocking-cam section (25a; 25b).
  6. Locking arrangment according to one of the preceding claims, characterized in that the blocking element (18a; 18b) is forced by a spring element (26)) counter to the direction (F) of the tensile loading by the associated connecting element (11b; 11a).
  7. Locking arrangement according to Claim 6, characterized in that at least one auxiliary switch (32) is operatively connected to the blocking element (18a; 18b).
  8. Locking arrangement according to one of the preceding claims, characterized in that a further spring element (27) of a dead-centre system forces the locking plate (17a; 17b) into the on or off position of the switching unit (2a; 2b).
EP98965255A 1997-12-22 1998-12-14 Locking device Expired - Lifetime EP1042710B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19757178 1997-12-22
DE1997157178 DE19757178C1 (en) 1997-12-22 1997-12-22 Locking arrangement for two low voltage switching devices connected via a flexible element, esp. a Bowden cable and to be locked to prevent simultaneous switching
PCT/EP1998/008172 WO1999032954A2 (en) 1997-12-22 1998-12-14 Locking device

Publications (2)

Publication Number Publication Date
EP1042710A2 EP1042710A2 (en) 2000-10-11
EP1042710B1 true EP1042710B1 (en) 2002-07-24

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EP98965255A Expired - Lifetime EP1042710B1 (en) 1997-12-22 1998-12-14 Locking device

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EP (1) EP1042710B1 (en)
DE (1) DE19757178C1 (en)
WO (1) WO1999032954A2 (en)

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DE19732324A1 (en) 1997-07-28 1999-02-04 Kloeckner Moeller Gmbh Circuit arrangement and method for memory space management and for processing user programs in small control systems
DE10061783C1 (en) * 2000-12-12 2002-06-06 Moeller Gmbh Interlocking device for electrical switching devices incorporates safety function preventing incorrect operation upon contact welding
EP1402152B1 (en) * 2001-07-03 2007-01-17 ABB Turbo Systems AG Securing system for the rotor blades of axial flow turbo engines
DE10227851B4 (en) * 2002-06-21 2007-03-29 Schaltbau Gmbh Mechanical locking device
DE102012201853A1 (en) * 2012-02-08 2013-08-08 Siemens Aktiengesellschaft Drive structure e.g. motor drive for turning ON/OFF e.g. compact circuit breaker, has Bowden cable locking module that is located in active connection with drive structure, and provided for mutually locking electrical switching device

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DE4406236A1 (en) * 1994-02-25 1995-08-31 Kloeckner Moeller Gmbh Mechanical interlock for at least two coupled units

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DE4002936A1 (en) * 1990-02-01 1991-08-22 Kloeckner Moeller Gmbh Simultaneous switch operation blocking device - uses tension element between identical locking devices for respective switches
US5227952A (en) * 1991-03-08 1993-07-13 Westinghouse Electric Corp. Interlock device for circuit breakers
DE9203532U1 (en) * 1992-03-17 1993-07-15 Kloeckner-Moeller Gmbh, 5300 Bonn, De
FR2703183B1 (en) * 1993-03-25 1995-05-19 Gec Alsthom Equip Basse Tens Safety device for mechanically locking circuit breakers between them.
DE4406296A1 (en) * 1994-02-26 1995-08-31 Seiler Ed Pianofortefab Gmbh Mechanics for a piano
DE4439745C1 (en) * 1994-10-31 1996-03-28 Siemens Ag Arrangement for interlocking the actuation of at least two circuit breakers

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DE4406236A1 (en) * 1994-02-25 1995-08-31 Kloeckner Moeller Gmbh Mechanical interlock for at least two coupled units

Also Published As

Publication number Publication date
WO1999032954A2 (en) 1999-07-01
WO1999032954A3 (en) 1999-08-26
DE19757178C1 (en) 1999-06-10
EP1042710A2 (en) 2000-10-11

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