EP0896348B1 - Interlocking device for switching devices - Google Patents

Interlocking device for switching devices Download PDF

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Publication number
EP0896348B1
EP0896348B1 EP98113728A EP98113728A EP0896348B1 EP 0896348 B1 EP0896348 B1 EP 0896348B1 EP 98113728 A EP98113728 A EP 98113728A EP 98113728 A EP98113728 A EP 98113728A EP 0896348 B1 EP0896348 B1 EP 0896348B1
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EP
European Patent Office
Prior art keywords
interlocking
plates
interlocking device
locking
spring
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
EP98113728A
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German (de)
French (fr)
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EP0896348A3 (en
EP0896348A2 (en
Inventor
Wolfgang Kutsche
Guido Dedenbach
Volker Heins
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Eaton Industries GmbH
Original Assignee
Moeller GmbH
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Publication date
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Publication of EP0896348A2 publication Critical patent/EP0896348A2/en
Publication of EP0896348A3 publication Critical patent/EP0896348A3/en
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Publication of EP0896348B1 publication Critical patent/EP0896348B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/001Means for preventing or breaking contact-welding
    • 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.
  • the locking devices mentioned normally ensure that only one can be switched on by two switching devices.
  • the switching devices to be locked can have a tipping point that either can start relatively early or late.
  • control knob can from the Ausin the on position can be moved without the switching device being switched on.
  • the object of the invention is therefore a locking device for switching devices according to the preamble of claim 1 to meet these requirements Takes into account.
  • the locking device 1a shown in the figures is for locking two switching devices 2 and 3 or circuit breakers and consists of a sliding element 4.
  • the sliding element 4 is slidably arranged on a carrier plate 5 by guides 6. At the ends of the sliding element 4, pairs of disks 7, 8 are arranged for locking the switching devices 2, 3.
  • the upper disc 9 is fixed to the operating lever, which is not shown in the figures, while the lower disc 10 is fixed to the switching shaft of the switching device.
  • the switching shaft of a switching device is interrupted to the operating lever, so that a relative movement between the switching axis of the switching device and the handle is possible.
  • both locking disks rotate against one another without a bearing being present in the axis of rotation, ie the switching axis is not continuous.
  • the storage and rotational movement of the two locking disks 9, 10 is determined by four Guide slots 11, 17, 18, 19 and four guide pins 12, 13, 14, 16 reached.
  • the guide slots 11, 17, 18, 19 are shaped like a radius and on the upper one Locking disc 9 available.
  • the guide pins 12, 13, 14, 16 face up a cross-sectional expansion so that both disks are held together. They are by a thread or the like on the lower locking disk 9 attached.
  • a guide pin 12 and a fixed to the upper locking washer 9th connected pins 15 are additionally with a second cross-sectional expansion 20 Mistake. These serve as support points for a spring 21 arranged in the axis of rotation with two spring arms 22, 23. A shortening or increasing the spring travel results from the attachment of the pins 12 and 15 to different Locking disks 9,10, whereby the locking disks 9,10 under Spring tension.
  • Both locking disks 9, 10 are provided with incisions 24 (FIG. 2) Have operating bevels 25. They cause a shift in the Sliding element 4, which has bevels 26 for this purpose.
  • Fig. 2 shows the case that beibe switching devices 2 and 3 are turned off. All cuts 24 of both pairs of disks 7, 8 are arranged at the same height as the sliding element 4. One of two tips 27 of the sliding element 4 at least partially protrudes into one of the incisions 24.
  • both switching devices 2, 3 are shown in the off position.
  • the Sliding element 4 is arranged in the center and is not immersed in any of the incisions, see above that both switching devices 2, 3 are unlocked.
  • Figures 8 and 9 show the switch-off process, the contacts of the first Switchgear 2 are welded.
  • FIGS. 10 to 16 show a third embodiment of the locking device 1c.
  • This consists of a Bowden cable 30 and two locking units 31, 32 each connected to the ends of the Bowden cable 30.
  • Each locking unit 31, 32 consists of two locking disks 9c, 10c as disk pairs 7c, 8c with guide slots 11, 17, 18, 19, guide pins 12, 13, 14, 16, a spring 21, which are no further are identified by reference numerals in FIGS. 10 to 16.
  • the locking disks 9c and 10c are provided with a locking cam 33, which consists of a cam track 34 and a locking incision 35 directed perpendicular to the cam track 34 and to the axis of rotation, in which a locking pin 36 can be inserted.
  • the locking pin 36 is connected to a lever mechanism 37, which consists of two spaced-apart and one-sided lever plates 38, a pivot 39, spacers 40, 41 and a Bowden cable receptacle 42.
  • the lever mechanism 37 is pivotally attached to a base plate 43 on one side.
  • the Bowden cable receptacle 42 is arranged at the end opposite the pivot point 44, between the two lever plates 38.
  • the Bowden cable receptacle 42 is provided on its lower side with a pin 45, which projects downward into the base plate 43 through a bore 46 in the lower lever plates 38.
  • a compression spring 47 is embedded in the base plate 43, the spring force of which is directed in the opening direction of the lever mechanism and presses on the pin 45.
  • both switching devices are shown in the off position. Both Locking pins 36 are slightly immersed in the locking notches 35. In in this area are the locking incisions 35 with the incision opening expanding guide bevel 48 provided when switching on a Switching device completely the locking pin from the locking incision 35th presses and opens the lever mechanism of the same switching device while under the effect of the Bowden cable 30 of the locking pin 36 of the off Switching device dips deeper into the locking recess or this Lever mechanism is closed and this switching device is locked, as the Fig. 12 shows.
  • FIG. 13 shows the start of a switch-on process of the second switching device 3, the locking pin of the switching device to be switched on being guided along the cam track.
  • the upper locking disc is relatively displaced relative to the lower locking disc, so that the locking incision is covered.
  • 15 shows the second switching device 3 in the tripped position
  • 16 shows the tensioning of the second switching device 3.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanical Control Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The locking device uses 2 disc pairs (7,8) for respective switches, each with counter-rotating locking discs (9,10), the upper disc attached to a switch operating shaft, while the lower disc is attached to the switch shaft. The locking discs allow a relative movement between the operating shaft and the switch shaft before insertion of a locking element (4) extending between the switches.

Description

Die Erfindung betrifft eine Verriegelungsvorrichtung nach dem Oberbegriff des Anspruches 1.The invention relates to a locking device according to the Preamble of claim 1.

Aus der DE 91 10 741 U1 ist eine Verriegelungsvorrichtung bekannt, die aus an den Schaltwellen eingesetzten Scheiben bestehen und einem Riegel besteht.From DE 91 10 741 U1 a locking device is known, which from the Switching shafts used exist and there is a bolt.

Die DE 44 06 236 A1 zeigt eine Verriegelungsvorrichtung die aus Bowdenzügen besteht.DE 44 06 236 A1 shows a locking device made of Bowden cables consists.

Die genannten Verriegelungsvorrichtungen stellen im Normalfall sicher, daß nur eines von zwei Schaltgeräten eingeschaltet werden kann.The locking devices mentioned normally ensure that only one can be switched on by two switching devices.

Die zu verriegelnden Schaltgeräte können einem Kippunkt aufweisen, der entweder relativ früh oder spät einsetzen kann.The switching devices to be locked can have a tipping point that either can start relatively early or late.

Bei diesen Anordnungen kann es bei Verwendung eines Bedienteiles mit Rückstellmoment vorkommen, daß die Kontaktarmträger des Schaltgerätes blockiert sind, was ein Einschalten verhindert. Der Bedienungsknebel kann aber von der Ausin die Ein-Stellung bewegt werden, ohne daß das Schaltgerät eingeschaltet wird.With these arrangements, it can be used with a control panel Reset torque occur that the contact arm carrier of the switching device blocks are what prevents switching on. The control knob can from the Ausin the on position can be moved without the switching device being switched on.

Eine andere unerwünschte Situation tritt bei der Verschweißung der Schaltkontakte ein, bei der die Schaltwelle in die Aus-Position gelangen kann, obwohl noch die Kontakte durch die Verschweißung geschlossen sind. Die Verriegelung gibt das andere Schaltgerät dann unzulässigerweise frei.Another undesirable situation occurs when the switch contacts are welded together where the selector shaft can move to the off position, although the Contacts are closed by the weld. The lock gives that other switching devices then unlawfully free.

Bei Schaltgeräten mit frühem Kippunkt sind derartige Verriegelungen aufgrund der kurzen Wegstrecke zum Teil nicht einsetzbar. In switching devices with an early tipping point, such interlocks are due to short distance sometimes not usable.

Aufgabe der Erfindung ist es deshalb, eine Verriegelungsvorrichtung für Schaltgeräte nach dem Oberbegriff des Anspruches 1 zu schaffen, die diesen Anforderungen Rechnung trägt.The object of the invention is therefore a locking device for switching devices according to the preamble of claim 1 to meet these requirements Takes into account.

Die Aufgabe der Erfindung wird durch die kennzeichnenden Merkmale des Anspruches 1 gelöst, während in den Unteransprüchen besonders vorteilhafte Weiterbildungen der Erfindung gekennzeichnet sind.The object of the invention is characterized by the Features of claim 1 solved, while in the subclaims in particular advantageous developments of the invention are characterized.

Anhand der Zeichnung, in der ein Ausführungsbeispiel dargestellt ist, sollen die Erfindung, weitere Ausgestaltungen und Verbesserungen der Erfindung und weitere Vorteile näher beschrieben und erläutert werden.Based on the drawing, in which an embodiment is shown, the Invention, further refinements and improvements of the invention and others Advantages are described and explained in more detail.

Es zeigt:

Fig. 1
eine perspektivische Darstellung einer ersten Ausführungsform der Verriegelungsvorrichtung,
Fig. 2
eine zweidimensionale Darstellung der ersten Ausführungsform mit beiden Schaltgeräten ausgeschaltet,
Fig. 3
eine zweidimensionale Darstellung der ersten Ausführungsform mit dem zweiten Schaltgerät eingeschaltet,
Fig. 4
eine zweidimensionale Darstellung der ersten Ausführungsform mit beginnendem Ausschaltvorgang des zweiten Schaltgerätes,
Fig. 5
eine zweidimensionale Darstellung der ersten Ausführungsform, in der das zweite Schaltgerätes die Aus-Position bei veschweißten Kontakten erreicht hat,
Fig. 6
eine zweidimensionale Darstellung einer zweiten Ausführungsform der Verriegelungsvorrichtung mit beiden Schaltgeräten ausgeschaltet,
Fig. 7
eine zweidimensionale Darstellung der zweiten Ausführungsform mit dem ersten Schaltgerät eingeschaltet,
Fig. 8
eine zweidimensionale Darstellung der zweiten Ausführungsform mit beginnendem Ausschaltvorgang des ersten Schaltgerätes,
Fig. 9
eine zweidimensionale Darstellung der zweiten Ausführungsform, in der das erste Schaltgerät die Aus-Position bei veschweißten Kontakten erreicht hat,
Fig. 10
eine perspektivische Darstellung einer dritten Ausführungsform der Verriegelungsvorrichtung,
Fig. 11
eine zweidimensionale Darstellung der dritten Ausführungsform mit beiden Schaltgeräten ausgeschaltet,
Fig. 12
eine zweidimensionale Darstellung der dritten Ausführungsform mit dem zweiten Schaltgerät eingeschaltet,
Fig. 13
eine zweidimensionale Darstellung der dritten Ausführungsform mit beginnendem Ausschaltvorgang des zweiten Schaltgerätes,
Fig. 14
eine zweidimensionale Darstellung der dritten Ausführungsform, in der das zweite Schaltgerät die Aus-Position bei veschweißten Kontakten erreicht hat,
Fig. 15
eine zweidimensionale Darstellung der dritten Ausführungsform, in der das zweite Schaltgerät die Ausgelöst-Position erreicht hat,
Fig. 16
eine zweidimensionale Darstellung der dritten Ausführungsform beim Spannen des zweite Schaltgerätes.
It shows:
Fig. 1
2 shows a perspective illustration of a first embodiment of the locking device,
Fig. 2
a two-dimensional representation of the first embodiment with both switching devices switched off,
Fig. 3
a two-dimensional representation of the first embodiment switched on with the second switching device,
Fig. 4
FIG. 2 shows a two-dimensional representation of the first embodiment when the second switching device starts to switch off,
Fig. 5
2 shows a two-dimensional representation of the first embodiment, in which the second switching device has reached the off position with welded contacts,
Fig. 6
a two-dimensional representation of a second embodiment of the locking device with both switching devices switched off,
Fig. 7
a two-dimensional representation of the second embodiment switched on with the first switching device,
Fig. 8
2 shows a two-dimensional representation of the second embodiment with the first switching device starting to switch off,
Fig. 9
2 shows a two-dimensional representation of the second embodiment, in which the first switching device has reached the off position with welded contacts,
Fig. 10
2 shows a perspective illustration of a third embodiment of the locking device,
Fig. 11
a two-dimensional representation of the third embodiment with both switching devices switched off,
Fig. 12
a two-dimensional representation of the third embodiment switched on with the second switching device,
Fig. 13
FIG. 2 shows a two-dimensional representation of the third embodiment with the second switching device starting to switch off, FIG.
Fig. 14
2 shows a two-dimensional representation of the third embodiment, in which the second switching device has reached the off position with welded contacts,
Fig. 15
2 shows a two-dimensional representation of the third embodiment in which the second switching device has reached the tripped position,
Fig. 16
a two-dimensional representation of the third embodiment when clamping the second switching device.

Die in den Figuren gezeigte Verriegelungsvorrichtung 1a ist zur Verriegelung von zwei Schaltgeräten 2 und 3 bzw. Leistungsschalter und besteht aus einem Schiebeelement 4.
Das Schiebeelement 4 ist auf einer Trägerplatte 5 durch Führungen 6 verschiebbar angeordnet.
An den Enden des Schiebeelementes 4 sind Scheibenpaare 7, 8 zur Verriegelung der Schaltgeräte 2, 3 angeordnet.
The locking device 1a shown in the figures is for locking two switching devices 2 and 3 or circuit breakers and consists of a sliding element 4.
The sliding element 4 is slidably arranged on a carrier plate 5 by guides 6.
At the ends of the sliding element 4, pairs of disks 7, 8 are arranged for locking the switching devices 2, 3.

Die Scheibenpaare 7, 8, wovon das Scheibenpaar 8 auseinandergezogen dargestellt ist, bestehen aus zwei aufliegenden und gegeneinander drehbaren Verriegelungsscheiben 9 und 10.
Die obere Scheibe 9 ist fest mit dem Bedienungshebel, der in den Figuren nicht dargestellt ist, verbunden, während die untere Scheibe 10 fest mit der Schaltwelle des Schaltgerätes verbunden ist.
Im Gegensatz zu bekannten Verriegelungen ist jeweils die Schaltwelle eines Schaltgerätes zu dem Bedienungshebel unterbrochen, so daß eine Relativbewegung zwischen der Schaltachse des Schaltgerätes und der Handhabe möglich ist. Im Falle einer Relativbewegung drehen sich beide Verriegelungsscheiben gegeneinander, ohne daß in der Drehachse eine Lagerung vorhanden ist, d.h. die Schaltachse ist nicht durchgehend.
The disk pairs 7, 8, of which the disk pair 8 is shown pulled apart, consist of two locking disks 9 and 10 lying on and rotatable relative to one another.
The upper disc 9 is fixed to the operating lever, which is not shown in the figures, while the lower disc 10 is fixed to the switching shaft of the switching device.
In contrast to known interlocks, the switching shaft of a switching device is interrupted to the operating lever, so that a relative movement between the switching axis of the switching device and the handle is possible. In the event of a relative movement, both locking disks rotate against one another without a bearing being present in the axis of rotation, ie the switching axis is not continuous.

Die Lagerung und Drehbewegung beider Verriegelungsscheiben 9,10 wird durch vier Führungslanglöcher 11,17,18,19 und vier Führungszapfen 12,13,14,16 erreicht. The storage and rotational movement of the two locking disks 9, 10 is determined by four Guide slots 11, 17, 18, 19 and four guide pins 12, 13, 14, 16 reached.

Die Führungslanglöcher 11,17,18,19 sind radiusartig geformt und an der oberen Verriegelungsscheibe 9 vorhanden. Die Führungszapfen 12,13,14,16 weisen oben eine Querschnittserweiterung auf, damit beide Scheiben zusammengehalten werden. Sie sind durch ein Gewinde oder dergleichen an der unteren Verriegelungsscheibe 9 befestigt.The guide slots 11, 17, 18, 19 are shaped like a radius and on the upper one Locking disc 9 available. The guide pins 12, 13, 14, 16 face up a cross-sectional expansion so that both disks are held together. They are by a thread or the like on the lower locking disk 9 attached.

Ein Führungszapfen 12 sowie ein fest mit der oberen Verriegelungsscheibe 9 verbundener Zapfen 15 sind zusätzlich mit einer zweiten Querschnittserweiterung 20 versehen. Diese dienen als Stützpunkte einer in Drehachse angeordneten Feder 21 mit zwei Federarmen 22, 23. Eine Verkürzung oder Vergrößerung des Federweges ergibt sich durch die Befestigung der Zapfen 12 und 15 an unterschiedlichen Verriegelungsscheiben 9,10, wodurch die Verriegelungsscheiben 9,10 unter Federspannung stehen.A guide pin 12 and a fixed to the upper locking washer 9th connected pins 15 are additionally with a second cross-sectional expansion 20 Mistake. These serve as support points for a spring 21 arranged in the axis of rotation with two spring arms 22, 23. A shortening or increasing the spring travel results from the attachment of the pins 12 and 15 to different Locking disks 9,10, whereby the locking disks 9,10 under Spring tension.

Beide Verriegelungsscheiben 9,10 sind mit Einschnitten 24 versehen (Fig. 2), die Betätigungsschrägen 25 aufweisen. Sie bewirken eine Verschiebung des Schiebeelementes 4, der hierfür Schrägen 26 aufweist.Both locking disks 9, 10 are provided with incisions 24 (FIG. 2) Have operating bevels 25. They cause a shift in the Sliding element 4, which has bevels 26 for this purpose.

Die Fig. 2 zeigt den Fall, daß beibe Schaltgeräte 2 und 3 ausgeschaltet sind. Alle Einschnitte 24 beider Scheibenpaare 7, 8 sind auf gleicher Höhe wie das Schiebeelement 4 angeordnet.
Eine von zwei Spitzen 27 des Schiebeelement 4 ragt zumindet teilweise in eines der Einschnitte 24.
Fig. 2 shows the case that beibe switching devices 2 and 3 are turned off. All cuts 24 of both pairs of disks 7, 8 are arranged at the same height as the sliding element 4.
One of two tips 27 of the sliding element 4 at least partially protrudes into one of the incisions 24.

In der Fig. 3 ist das Schaltgerät 3 eingeschaltet worden, wobei der Schieber 4 in den Einschnitt 24 des Scheibenpaares 24 des zweiten Schaltgerätes 3 eintaucht und dieses verriegelt.In Fig. 3, the switching device 3 has been switched on, the slide 4 in the Incision 24 of the pair of disks 24 of the second switching device 3 dips and this locks.

Die Fig. 3 zeigt einen Einschaltvorgang ohne Relativbewegung beider Verriegelungsscheiben. Dies entspricht dem Einschaltvorgang bei bekannten Verriegelungen. 3 shows a switch-on process without relative movement of both Locking discs. This corresponds to the switch-on process in known Interlocks.

Beim Einschalten des zweiten Schaltgerätes 3 wird das Schiebeelement nach links geschoben, so daß es in dem Einschnitt 24 der Verriegelungsscheibe des ersten Schaltgerätes 2 eintaucht und somit dieses blockiert. Ein Einschalten des ersten Schaltgerätes 2 ist -solange das zweite Schaltgerät 3 eingeschaltet ist- nicht möglich.When the second switching device 3 is switched on, the sliding element moves to the left pushed so that it is in the recess 24 of the locking disc of the first Switching device 2 is immersed and thus blocked. Turning on the first Switching device 2 is not possible as long as the second switching device 3 is switched on.

Die Fig. 4 zeigt wie sich beim Ausschalten des zweiten Schaltgerätes 3 die Verriegelungsscheiben relativ zueinander bewegen. Zuerst wird nur die obere Verriegelungsscheibe bis zum Anschlag, der durch die Führungslanglöcher 11,17,18,19 definiert ist, gedreht. Die untere Scheibe wird nicht gedreht, so daß der Einschnitt nicht für ein Eintauchen des Schiebeelementes freigegeben ist. Beim weiteren Drehen des Bedienteils in die Ausposition, wie Fig. 5 zeigt, bleiben, wenn z.B. die Kontakte des auszuschaltenden Schaltgerätes 3 verschweißt sind, die Einschnitte unzugänglich für das Schiebeelement 4. Dieses kann nicht nach rechts geschoben werden und das erste Schaltgerät 2 bleibt in der Aus-Position blockiert.4 shows how the second switching device 3 turns off Move the locking washers relative to each other. First only the top one Lock washer as far as it will go, through the guide slots 11,17,18,19 is defined, rotated. The lower disc is not rotated, so that the Incision is not released for immersion of the sliding element. At the further turning the control panel into the out position, as shown in FIG. 5, remain if e.g. the contacts of the switching device 3 to be switched off are welded, the Incisions inaccessible to the sliding element 4. This cannot move to the right be pushed and the first switching device 2 remains blocked in the off position.

Erst wenn sowohl das Bedienteil bzw. der Schalthebel in der Aus-Position gelangt und die Kontakte vollständig geöffnet sind, sind die Einschnitte 24 der oberen und unteren Verriegelgelungsscheibe 9 und 10 deckungsgleich, so daß das Schiebeelement 4 in die Einschnitte 24 eintauchen kann.Only when both the control unit and the shift lever reach the off position and the contacts are fully open, the cuts 24 are the top and bottom Locking washer 9 and 10 congruent, so that the sliding element 4 in the cuts 24 can dip.

Die Figuren 6 bis 9 zeigen eine zweite Ausführungsform einer Verriegelungsvorrichtung.
Sie unterscheidet sich im Vergleich zu der eingangs beschriebenen Verriegelungsvorrichtung durch

  • ein federnd gelagertes Schiebeelement 4b, das durch zwei Federn 49 mittig zentriert wird,
  • durch rechteckförmige Einschitte 24b,
  • einen segmentartig nach außen erweiterten Schiebebereich 28 an der oberen Verriegelungsscheibe, der direkt neben dem Einschnitt 24b eine Betätigungsschräge 29 zur Betätigung des Schiebeelementes 4b angeordnet ist,
  • ein Schließsegment 30 an der unteren Verriegelungsscheibe, das in Fig. 8 zu sehen ist.
Figures 6 to 9 show a second embodiment of a locking device.
It differs from the locking device described above by
  • a spring-mounted sliding element 4b, which is centered in the middle by two springs 49,
  • through rectangular incisions 24b,
  • a sliding area 28 on the upper locking disk which is widened in segments, which is arranged directly next to the notch 24b, an actuating slope 29 for actuating the sliding element 4b,
  • a locking segment 30 on the lower locking disc, which can be seen in Fig. 8.

In der Fig. 6 sind beide Schaltgeräte 2,3 in der Aus-Position dargestellt. Das Schiebeelement 4 ist mittig angeordnet und in keines der Einschnitte eingetaucht, so daß beide Schaltgeräte 2,3 unverriegelt sind.6, both switching devices 2, 3 are shown in the off position. The Sliding element 4 is arranged in the center and is not immersed in any of the incisions, see above that both switching devices 2, 3 are unlocked.

Beim Einschalten des ersten Schaltgerätes 2 wird das Schiebeelement 4b durch den Schiebebereich 28 in den Einschnitt 24b der Verriegelungsscheibe des zweiten Schaltgerätes 3 gedrückt, wie die Fig. 7 zeigt.When the first switching device 2 is switched on, the sliding element 4b is replaced by the Sliding area 28 in the recess 24b of the locking disc of the second Switching device 3 pressed, as shown in FIG. 7.

Die Figuren 8 und 9 zeigen den Auschaltvorgang, wobei die Kontakte des ersten Schaltgerätes 2 verschweißt sind.Figures 8 and 9 show the switch-off process, the contacts of the first Switchgear 2 are welded.

Auch hier erfolgt wie in der ersten Ausführungsform eine Relativbewegung zwischen der oberen und der unteren Verriegelungsscheibe, wobei auch hier sowohl an der oberen wie auch an der unteren Verriegelungsscheibe ein rechteckförmiger Einschnitt vorhanden ist und sich beide Einschnitte soweit voneinander verschieben, daß das Schiebeelement in diese nicht eintauchen kann.Here too, as in the first embodiment, there is a relative movement between the upper and the lower locking washer, here also on both A rectangular cut in both the upper and lower locking washers is present and both cuts move so far from each other that the Sliding element cannot dip into this.

Die Figuren 10 bis 16 zeigen ein dritte Ausführungsform der Verriegelungsvorrichtung 1c.
Diese besteht aus einem Bowdenzug 30 und zwei jeweils an den Enden des Bowdenzuges 30 angeschlossenen Verriegelungseinheiten 31, 32.
Jede Verriegelungseinheit 31, 32 besteht, wie in den vorangegangenen Beispielen, aus zwei Verriegelungsscheiben 9c,10c als Scheibenpaare 7c, 8c mit Führungslanglöchem 11,17,18,19, Führungszapfen 12,13,14,16, einer Feder 21, die nicht weiter mit Bezugszeichen in den Figuren 10 bis 16 gekennzeichnet sind. Zur Verriegelung sind die Verriegelungsscheiben 9c und 10c mit einer Verriegelkurve 33 versehen, die aus einer Kurvenbahn 34 und einem senkrecht zur Kurvenbahn 34 und zur Drehachse gerichtetem Verriegelungseinschnitt 35, in dem ein Verriegelungsstift 36 eintauchen kann.
FIGS. 10 to 16 show a third embodiment of the locking device 1c.
This consists of a Bowden cable 30 and two locking units 31, 32 each connected to the ends of the Bowden cable 30.
Each locking unit 31, 32, as in the previous examples, consists of two locking disks 9c, 10c as disk pairs 7c, 8c with guide slots 11, 17, 18, 19, guide pins 12, 13, 14, 16, a spring 21, which are no further are identified by reference numerals in FIGS. 10 to 16. For locking purposes, the locking disks 9c and 10c are provided with a locking cam 33, which consists of a cam track 34 and a locking incision 35 directed perpendicular to the cam track 34 and to the axis of rotation, in which a locking pin 36 can be inserted.

Der Verriegelungsstift 36 ist mit einem Hebelmechanismus 37 verbunden, das aus zwei im Abstand voneinander angeordneten und einseitig gelagerten Hebelplatten 38, einen Drehzapfen 39, Abstandselementen 40, 41 und einer Bowdenzugaufnahme 42 besteht.
Der Hebelmechanismus 37 ist an einer Grundplatte 43 einseitig schwenkbar befestigt. An dem von dem Drehpunkt 44 gegenüberliegenden Ende, zwischen den beiden Hebelplatten 38 ist die Bowdenzugaufnahme 42 angeordnet. Die Bowdenzugaufnahme 42 ist an ihrer unteren Seite mit einem Zapfen 45 versehen, wobei dieser durch eine an der unteren Hebelplatten 38 vorhandenen Bohrung 46 nach unten in die Grundplatte 43 ragt. In der Grundplatte 43 ist eine Druckfeder 47 eingebettet, deren Federkraft in Öffnungsrichtung des Hebelmechanismus gerichtet ist und auf den Zapfen 45 drückt.
The locking pin 36 is connected to a lever mechanism 37, which consists of two spaced-apart and one-sided lever plates 38, a pivot 39, spacers 40, 41 and a Bowden cable receptacle 42.
The lever mechanism 37 is pivotally attached to a base plate 43 on one side. The Bowden cable receptacle 42 is arranged at the end opposite the pivot point 44, between the two lever plates 38. The Bowden cable receptacle 42 is provided on its lower side with a pin 45, which projects downward into the base plate 43 through a bore 46 in the lower lever plates 38. A compression spring 47 is embedded in the base plate 43, the spring force of which is directed in the opening direction of the lever mechanism and presses on the pin 45.

In der Fig. 11 sind beide Schaltgeräte in der Aus-Position gezeigt. Beide Verriegelungsstifte 36 sind leicht in die Verriegelungseinschnitte 35 eingetaucht. In diesem Bereich sind die Verriegelungseinschnitte 35 mit die Einschnittsöffnung erweiternden Führungsschräge 48 versehen, die beim Einschalten eines Schaltgerätes den Verriegelungsstift vollständig aus dem Verriegelungseinschnitt 35 drückt und den Hebelmechanismus des gleichen Schaltgerätes öffnet, während unter der Wirkung des Bowdenzuges 30 der Verriegelungsstift 36 des ausgeschalteten Schaltgerätes tiefer in den Verriegelungseinschnitt eintaucht bzw. dieser Hebelmechanismus geschlossen ist und dieses Schaltgerät verriegelt ist, wie die Fig. 12 zeigt. In Fig. 11, both switching devices are shown in the off position. Both Locking pins 36 are slightly immersed in the locking notches 35. In in this area are the locking incisions 35 with the incision opening expanding guide bevel 48 provided when switching on a Switching device completely the locking pin from the locking incision 35th presses and opens the lever mechanism of the same switching device while under the effect of the Bowden cable 30 of the locking pin 36 of the off Switching device dips deeper into the locking recess or this Lever mechanism is closed and this switching device is locked, as the Fig. 12 shows.

Die Fig. 13 zeigt den Beginn eines Einschaltvorganges des zweiten Schaltgerätes 3, wobei der Verriegelungsstift des einzuschaltenden Schaltgerätes entlang der Kurvenbahn geführt wird.
Die obere Verriegelungsscheibe ist gegenüber der unteren Verriegelungsscheibe relativ verschoben, so daß der Verriegelungseinschnitt verdeckt wird.
FIG. 13 shows the start of a switch-on process of the second switching device 3, the locking pin of the switching device to be switched on being guided along the cam track.
The upper locking disc is relatively displaced relative to the lower locking disc, so that the locking incision is covered.

In der Fig. 14 ist der Fall dargestellt, daß der Bedienhebel des zweiten Schaltgerätes 3 in die Ausposition bewegt worden ist, obwohl die Kontakte verschweißt sind und daher das zweite Schaltgerät 3 noch eingeschaltet ist. Der Verriegelungsstift 36 ist zwar direkt über den Verriegelungseinschnitt 35 angeordnet. Er kann aber wegen der Relativverschiebung der Verriegelungsscheiben nicht eintauchen, so daß unter der Wirkung des Bowdenzuges die Verriegelungsscheiben des ersten Schaltgerätes blockiert sind.14 shows the case in which the operating lever of the second switching device 3 has been moved into the position, although the contacts are welded and therefore the second switching device 3 is still switched on. The locking pin 36 is indeed arranged directly above the locking incision 35. But he can because of Do not immerse the relative displacement of the locking washers, so that under the Effect of the Bowden cable the locking disks of the first switching device are blocked.

Weiterhin zeigt die Fig. 15 das zweite Schaltgerät 3 in der Ausgelöst-Stellung, während die Fig. 16 das Spannen des zweiten Schaltgerätes 3 zeigt. 15 shows the second switching device 3 in the tripped position, 16 shows the tensioning of the second switching device 3.

Liste der BezugszeichenList of reference numbers

  • Verriegelungsvorrichtung 1 a, 1b, 1cLocking device 1 a, 1b, 1c
  • Schaltgeräte 2,3Switchgear 2.3
  • Schiebeelement 4Sliding element 4
  • Trägerplatte 5Carrier plate 5
  • Führungen 6Guided tours 6
  • Scheibenpaare 7, 8Disc pairs 7, 8
  • Verriegelgelungsscheiben 9 und 10Locking washers 9 and 10
  • Führungslanglöcher 11,17,18,19Guide slots 11, 17, 18, 19
  • Führungszapfen 12,13,14,16Guide pin 12, 13, 14, 16
  • Zapfen 15Pin 15
  • Querschnittserweiterung 20Cross-sectional expansion 20
  • Feder 21Spring 21
  • Federarme 22, 23Spring arms 22, 23
  • Einschnitte 24Incisions 24
  • Betätigungsschrägen 25Operating slopes 25
  • Schrägen 26Sloping 26th
  • Spitzen 27Tips 27
  • Schiebebereich 28Sliding area 28
  • Betätigungsschräge 29Operating slope 29
  • Bowdenzug 30Bowden cable 30
  • Verriegelungseinheiten 31, 32Locking units 31, 32
  • Verriegelkurve 33Lock curve 33
  • Kurvenbahn 34Cam track 34
  • Verriegelungseinschnitt 35 Locking incision 35
  • Verriegelungsstift 36Lock pin 36
  • Hebelmechanismus 37Lever mechanism 37
  • Drehzapfen 39Pivot 39
  • Abstandselemente 40, 41Spacers 40, 41
  • Bowdenzugaufnahme 42Bowden cable mount 42
  • Grundplatte 43Base plate 43
  • Drehpunkt 44Pivot point 44
  • Zapfen 45Pin 45
  • Bohrung 46Hole 46
  • Druckfeder 47Compression spring 47
  • Führungsschräge 48Guide slope 48
  • Federn 49Springs 49
  • Claims (18)

    1. Interlocking device (1a, 1b, 1c) for two switching devices (2, 3) with actuating shafts, on each of which an operating lever can be arranged, with an interlocking element (4, 4b, 4c) and with interlocking plates (9, 10) and incisions contained therein, in which the interlocking element can enter to block an actuating shaft, the interlocking device being intended to prevent the two switching devices from being switched on simultaneously, characterized in that the interlocking device (1a, 1b, 1c) comprises two pairs of plates (7, 8) with two interlocking plates (9 and 10) lying one on top of the other and respectively able to rotate under spring tension with respect to each other, in that in each case the upper interlocking plate (9) is firmly connected to the respective operating lever, while in each case the lower interlocking plate (10) can be firmly connected by transmission elements to the respective actuating shaft of the one switching device, whereby a relative movement, starting from a stop position, between the actuating shaft of the one switching device and the operating lever is possible, and in that the interlocking element (4, 4b, 4c) cannot enter the interlocking plates (9, 10) of the one switching device, and consequently blocks the other switching device in the off position, if the relative movement between the upper and lower interlocking plates (9, 10) has occurred.
    2. Interlocking device according to Claim 1, characterized in that the interlocking plates (9, 10) have incisions in which it is only possible for the interlocking element to enter if no relative movement between the upper and lower interlocking plates has taken place.
    3. Interlocking device according to Claim 1 or 2, characterized in that the mounting and rotational movement of the two interlocking plates (9, 10) is achieved by guiding slots (11, 17, 18, 19) and guiding studs (12, 13, 14, 16).
    4. Interlocking device according to one of the preceding claims, characterized in that the mounting and rotational movement of the two interlocking plates (9, 10) is achieved by four guiding slots (11, 17, 18, 19) and four guiding studs (12, 13, 14, 16).
    5. Interlocking device according to Claim 4, characterized in that the guiding slots (11, 17, 18, 19) are formed in a radius-like manner and are arranged on the upper interlocking plate (9), in that the guiding studs (12, 13, 14, 16) have a cross-sectional enlargement at the top, in order that the two plates are held together, and in that the guiding studs (12, 13, 14, 16) are fastened to the lower interlocking plate (9) by a thread.
    6. Interlocking device according to one of the preceding claims, characterized in that a guiding stud (12) and a stud (15) firmly connected to the upper interlocking plate (9) are additionally provided with a second cross-sectional enlargement (20), in that the guiding stud (12) and the stud (15) serve as supporting points of a spring (21) which is arranged in the axis of rotation and has two spring arms (22, 23), having the effect that the spring excursion is shortened or lengthened and, because the studs (12, 15) are fastened to different locking plates (9, 10), that the locking plates 9, 10 are under spring loading.
    7. Interlocking device according to one of the preceding claims, characterized in that the two interlocking plates (9, 10) are provided with incisions (24) which have actuating bevels (25) and permit a displacement of a sliding element (4), which for this purpose has points (27) and bevels (26).
    8. Interlocking device according to one of the preceding claims, characterized in that there is a spring-mounted sliding element (4b) which is centred in the middle by two springs (49).
    9. Interlocking device according to one of the preceding claims, characterized in that the interlocking plates are provided with at least one rectangular incision (24b) and a sliding region (28) which widens outwards in the manner of a segment on the upper interlocking plate and has directly alongside the incision (24b) an actuating bevel (29) for the actuation of a sliding element (4b).
    10. Interlocking device according to one of the preceding claims, characterized in that there is a closing segment (30) on the lower interlocking plate.
    11. Interlocking device according to one of the preceding claims, characterized in that the interlocking device comprises a Bowden cable (30) and two interlocking units (31, 32) respectively connected to the ends of the Bowden cable (30).
    12. Interlocking device according to Claim 11, characterized in that each interlocking unit (31, 32) comprises two interlocking plates (9c, 10c) as pairs of plates (7c, 8c) with guiding slots (11, 17, 18, 19), guiding studs (12, 13, 14, 16) and at least one spring (21).
    13. Interlocking device according to Claim 12, characterized in that, for the interlocking, the interlocking plates (9c, 10c) are provided with at least one interlocking cam (33), which comprises a camway (34) and an interlocking incision (35), which is directed perpendicularly in relation to the camway (34) and in relation to the axis of rotation and in which an interlocking pin (36) can enter.
    14. Interlocking device according to Claim 13, characterized in that the interlocking pin (36) is connected to a lever mechanism (37), which comprises two lever plates (38), which are arranged at a distance from each other and are mounted on one side, a pivoting stud (39), spacing elements (40, 41) and a Bowden cable receptacle (42).
    15. Interlocking device according to Claim 13 or 14, characterized in that the lever mechanism (37) is fastened to a base plate (43) in such a way that it can pivot on one side.
    16. Interlocking device according to one of the preceding Claims 13 to 15, characterized in that the Bowden cable receptacle (42) is arranged at the end opposite from the pivot point (44), between the two lever plates (38).
    17. Interlocking device according to Claim 16, characterized in that the Bowden cable receptacle (42) is provided with a stud (42) on its lower side, this stud protruding through a bore (46), which is present on the lower lever plate (38), downwards into the base plate (43).
    18. Interlocking device according to one of the preceding Claims 13 to 17, characterized in that embedded in the base plate (43) is a compression spring (47), the spring force of which is directed in the opening direction of the lever mechanism (37) and presses on the stud (45).
    EP98113728A 1997-08-04 1998-07-23 Interlocking device for switching devices Expired - Lifetime EP0896348B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19733720A DE19733720A1 (en) 1997-08-04 1997-08-04 Locking device for switchgear
    DE19733720 1997-08-04

    Publications (3)

    Publication Number Publication Date
    EP0896348A2 EP0896348A2 (en) 1999-02-10
    EP0896348A3 EP0896348A3 (en) 1999-09-08
    EP0896348B1 true EP0896348B1 (en) 2004-03-03

    Family

    ID=7837974

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98113728A Expired - Lifetime EP0896348B1 (en) 1997-08-04 1998-07-23 Interlocking device for switching devices

    Country Status (4)

    Country Link
    EP (1) EP0896348B1 (en)
    AT (1) ATE261185T1 (en)
    DE (2) DE19733720A1 (en)
    ES (1) ES2217464T3 (en)

    Families Citing this family (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    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
    DE10227851B4 (en) * 2002-06-21 2007-03-29 Schaltbau Gmbh Mechanical locking device
    DE102006041374B3 (en) * 2006-08-29 2008-02-28 Siemens Ag Drive lock for two alternative side opened and closed switch of control panel, particularly circuit breaker with attached earthing switch, comprises deviating locking plate that is positively guided by rotation of switch disks
    DE102009020141B4 (en) * 2009-05-04 2016-03-03 Siemens Aktiengesellschaft Device for mutual locking of two switches, in particular circuit breaker
    US8552318B2 (en) * 2010-11-12 2013-10-08 Schneider Electric USA, Inc. Rotary interlock mechanism for electrical switches
    DE102011003648A1 (en) * 2011-02-04 2012-08-09 Siemens Aktiengesellschaft Locking device for locking handles of electrical switches
    DE102013204936A1 (en) 2013-03-20 2014-09-25 Siemens Aktiengesellschaft support plate
    EP3067910B1 (en) 2015-03-13 2018-04-04 Eaton Intelligent Power Limited Electrical switching device with a mechanical locking device for the switching of switches
    CN107578964B (en) * 2017-10-25 2018-11-23 谢志坚 A kind of mechanical interlocks for air-break circuit-breaker

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE549069C (en) * 1930-03-28 1932-04-22 Siemens Schuckertwerke Akt Ges Device for the mutual locking of electrical switchgear
    US2647964A (en) * 1950-12-22 1953-08-04 Us Navy Switching apparatus
    AT321154B (en) * 1973-06-22 1975-03-25 Wertheim Werke Ag Barring courts
    DE9110741U1 (en) * 1991-08-30 1991-11-07 Buckel, Antonie, 91217 Hersbruck Mechanical switch locking
    US5272291A (en) * 1991-12-30 1993-12-21 Boltswitch, Inc. Dual switch actuator mechanism with Geneva drive plate and follower plates detent assembly
    DE4406236A1 (en) * 1994-02-25 1995-08-31 Kloeckner Moeller Gmbh Mechanical interlock for at least two coupled units
    DE4439746C1 (en) * 1994-10-31 1996-04-04 Siemens Ag Evaluation device for a system for interlocking circuit breakers

    Also Published As

    Publication number Publication date
    ES2217464T3 (en) 2004-11-01
    DE19733720A1 (en) 1999-02-11
    ATE261185T1 (en) 2004-03-15
    EP0896348A3 (en) 1999-09-08
    EP0896348A2 (en) 1999-02-10
    DE59810881D1 (en) 2004-04-08

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