EP2063443B1 - Emergency stop switching device - Google Patents

Emergency stop switching device Download PDF

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Publication number
EP2063443B1
EP2063443B1 EP08019160.4A EP08019160A EP2063443B1 EP 2063443 B1 EP2063443 B1 EP 2063443B1 EP 08019160 A EP08019160 A EP 08019160A EP 2063443 B1 EP2063443 B1 EP 2063443B1
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EP
European Patent Office
Prior art keywords
switching device
emergency stop
contact
switch
contact bridge
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EP08019160.4A
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German (de)
French (fr)
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EP2063443A2 (en
EP2063443A3 (en
Inventor
Franz Gessler
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Rafi GmbH and Co KG
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Rafi GmbH and Co KG
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Publication of EP2063443A2 publication Critical patent/EP2063443A2/en
Publication of EP2063443A3 publication Critical patent/EP2063443A3/en
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Publication of EP2063443B1 publication Critical patent/EP2063443B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts

Definitions

  • the invention relates to a switching device with a plurality of series-connected emergency stop switching devices according to the preamble of claim 1.
  • Such a switching device can the DE 103 14 539 B4 be removed.
  • Such a switching device essentially serves to immediately switch off the electrically operated machine in an emergency situation. Usually, by depressing the actuating cap, the contact switch is decoupled from the electrical circuit, so that the power supply for the machine is interrupted.
  • These switching devices are used in a variety of electrical appliances, machines, control devices or the like.
  • a disadvantage of this prior art is that the emergency stop switching device is installed exclusively in an electrically operated machine. Therefore, if a plurality of such machines are combined in a circuit, it can not be determined by pressing one of the emergency stop switch, which of the emergency stop buttons was actually operated.
  • the emergency stop switching device according to the US 4,013,856 A no electrical control signal can be generated in order to determine which of the emergency stop switching devices is activated in order to deactivate this as soon as possible and thus to enable the switching position for the re-function recording of the electrically operated machine.
  • control signal generating the control switch in the center of the switching device namely in a cavity of a driving sleeve
  • the control signal generating the control switch in the center of the switching device is arranged, because usually LED lights are housed in the known switching devices in the center of the cavity to recognize the switching device in the dark room or in visual restrictions, such as smoke or other environmental pollution easily and thus to operate.
  • the switching device according to the invention can therefore be incorporated into existing emergency stop switching devices, because they can be equipped with the features of the invention, in particular with the control bridge in the center of the switching device to generate the control signal in the operating state of the emergency stop switching device.
  • the illumination of the actuating cap of the emergency stop switching device can be made directly in this, so that still the localization of the actuator cap is ensured in an emergency situation.
  • the resulting cavity of a commercial Notaus- switching device can therefore be provided with the contact bridge according to the invention, so that even in machinery and equipment retrofitting with the inventive feature is readily feasible.
  • an emergency stop switching device 1 can be removed by which an electrically operated machine 2 can be disconnected from a power circuit 3 in an emergency situation, so that the operation of the machine 2 is stopped immediately.
  • Such machines 2 form a synchronized machine system in a work or production cycle. Consequently, if one of the machines 2 integrated in the work cycle is stopped, the entire machine system must stand still. When the emergency situation has been clarified and finished, the machine should be able to resume operation immediately. For this purpose, it is necessary to recognize which of the switching devices 1 has actually been actuated in order to connect the machine 2 in turn to the circuit 3 and thus to put the entire machine system into operation.
  • the switching device 1 comprises a fixedly connected to the machine 2 housing 4 to which an externally accessible actuating cap 5 is held axially displaceable in the illustrated direction of movement 9.
  • a driving sleeve 7 is arranged, which is fixedly connected to the actuating cap 5 and thus displaced in the axial direction of movement of the actuating cap 9.
  • the driving sleeve 7 is supported and guided on the inner surface 6 of the housing 4 and the actuating cap 5 on the outer surface 6 'of the housing 4.
  • the actuating cap 5 and the driving sleeve 7 are circular in cross-section.
  • a guide sleeve 25 is inserted, which is fixedly connected to the actuating cap 5, and which is supported on the inner surface 6 of the housing 4, whereby consequently the actuating cap 5 is additionally held axially guided on the housing 4.
  • the actuating cap 5 is thus brought into abutment against a plurality of bearing and guide surfaces on the inner surface 6 and the outer surface 6 'of the housing 4, whereby a tilting of the actuating cap 5 is avoided during the movement process. It is thus achieved that in an emergency situation, the actuating cap 5 can be moved reliably and without delay in the direction of movement 9 in order to separate the machine 2 from the circuit 3.
  • the two L-shaped conductors 13 are electrically coupled together by a switching sleeve 12.
  • the switching sleeve 12 thus serves as a switching element to close the contact switch 11 and to open in the operating state of the switching device 1.
  • the switching sleeve 12 is designed for this purpose such that it faces the contact switch 11 opposite free end in the direction of the actuating cap 5 and the driving sleeve 7.
  • the shift sleeve 12 is pressed by the force of a spring 14 in the direction of the actuating cap 5 and the driving sleeve 7.
  • the force of the spring 14 is supported by the two conductors 13, which assign each other with their horizontally extending legs.
  • the other free end of the spring 14 is fixed to two pins 26 which are integrally formed on the housing 4.
  • the longitudinal axis 8 of the housing 4 forms the axis of symmetry for the actuating cap 5, the driving sleeve 7 and
  • the end face 10 of the driving sleeve 7 is brought to bear against the switching sleeve 12 and lifted against the force of the spring 14 by the two opposing conductors 13.
  • the contact switch 11 is opened and the machine 2 is disconnected from the circuit 3, whose power supply is thereby interrupted.
  • a contact bridge 21 is used, which is formed in cross-section U-shaped.
  • a control switch 22 is provided in the region of the contact switch 11, which is formed by two contact pins 24, which are arranged at a distance from each other.
  • the contact bridge 21 and the control switch 22 thus form a control circuit 23 which is electrically isolated from the contact switch 11 and thus forms a separate circuit.
  • a retaining sleeve 18 is inserted in a cavity 16 which is incorporated into the driving sleeve 7, which in the direction of the contact bridge 21 U-shaped is designed.
  • a spring 17 is inserted, through which the contact bridge 21 in the direction of the control switch 22, ie on the free end of the two contact pins 24, is pressed.
  • the switching device 1 By operating the switching device 1 is thus opened by the actuating cap 4 and the driving sleeve 7 fixedly connected to the contact switch 11 and the machine 2 separated from this supplying them with power circuit 3.
  • the control circuit 23 is closed by the contact bridge 21 makes an electrical connection between the two contact pins 24 of the control switch 22.
  • This electrical connection generates a control signal that is recognizable in an external control unit and indicates exactly to the operating personnel which of the switching devices 1 present in a machine installation has actually been activated. Therefore, as soon as the emergency situation could be clarified and adjusted, it is possible for the operating personnel without delay to detect and deactivate the actuated switching device 1 in order to be able to put the machine system back into operation as a whole.

Description

Die Erfindung bezieht sich auf eine Schaltvorrichtung mit einer Vielzahl von in Reihe zueinander geschalteten Notaus-Schaltvorrichtungen nach dem Oberbegriff des Patentanspruches 1.The invention relates to a switching device with a plurality of series-connected emergency stop switching devices according to the preamble of claim 1.

Eine solche Schaltvorrichtung kann der DE 103 14 539 B4 entnommen werden. Eine derartige Schaltvorrichtung dient im wesentlichen dazu, die elektrisch betriebene Maschine in einer Notfallsituation unverzüglich abzustellen. Üblicherweise wird durch Herunterdrücken der Betätigungskappe der Kontaktschalter von dem elektrischen Schaltkreis entkoppelt, so dass die Energieversorgung für die Maschine unterbrochen ist. Diese Schaltvorrichtungen werden in einer Vielzahl von elektrischen Geräten, Maschinen, Steuereinrichtungen oder dgl. eingesetzt.Such a switching device can the DE 103 14 539 B4 be removed. Such a switching device essentially serves to immediately switch off the electrically operated machine in an emergency situation. Usually, by depressing the actuating cap, the contact switch is decoupled from the electrical circuit, so that the power supply for the machine is interrupted. These switching devices are used in a variety of electrical appliances, machines, control devices or the like.

Als nachteilig bei der Verwendung solcher Notaus-Schaltvorrichtungen hat sich herausgestellt, dass es oftmals schwierig ist, herauszufinden, welche der vielen Schaltvorrichtungen tatsächlich betätigt wurde. Wenn nämlich eine Vielzahl von elektrischen Geräten, die in einer Werkzeughalle stehen und einen gemeinsamen Herstellungsprozess bilden, zu unterbrechen sind, kann die betätigte Schaltvorrichtung nicht unmittelbar bestimmt werden, so dass eine zeitliche Verzögerung entsteht, um den Gerätekreislauf wiederum in Betrieb zu setzen. Durch das Betätigen der Schaltvorrichtung wird nämlich die gesamte miteinander verbundene und synchronisierte Anlage abgestellt. Das Überwachungs- und Bedienpersonal hat daher im Falle der Betätigung einer der Notaus-Schaitvorrichtungen jede der Schaltvorrichtungen, die in der Anlage installiert sind, zu überprüfen. Erst wenn die betätigte Notaus-Schaltvorrichtung deaktiviert ist, wenn also die Notfallsituation beendet werden konnte, soll die Maschine bzw. die Anlage unverzüglich den Betrieb wiederum aufnehmen, um unnötige Stillstandszeiten zu vermeiden.As a disadvantage in the use of such emergency stop switching devices has been found that it is often difficult to find out which of the many switching devices has actually been operated. Namely, if a plurality of electrical appliances that are in a tool shop and form a common manufacturing process, are interrupted, the actuated switching device can not be determined directly, so that a time delay arises to turn the equipment cycle in turn. By operating the switching device namely the entire interconnected and synchronized system is turned off. The monitoring and operating staff therefore has in case of operation of one of the emergency stop devices, check each of the switching devices installed in the system. Only when the actuated emergency stop switching device is deactivated, ie when the emergency situation could be terminated, should the machine or the system immediately resume operation in order to avoid unnecessary downtimes.

Aus der US 4,013,856 A ist eine Not-Aus-Schaltvorrichtung zu entnehmen, die geeignet ist, als Not-Aus-Schaltvorrichtung verwendet zu werden, um eine elektrisch betriebene Maschine von einem Schaltkreis zu trennen.From the US 4,013,856 A reference is made to an emergency stop switching device which is suitable for use as an emergency stop switching device for disconnecting an electrically operated machine from a circuit.

Als nachteilig bei diesem Stand der Technik ist, dass die Not-Aus-Schaltvorrichtung ausschließlich in einer elektrisch betriebenen Maschine eingebaut ist. Wenn daher eine Vielzahl solcher Maschinen in einem Schaltkreis zusammengeschlossen sind, kann durch Betätigen eines der Not-Aus-Schalter nicht festgestellt werden, welcher der Not-Aus-Tasten tatsächlich betätigt wurde. Zudem kann durch die Not-Aus-Schaltvorrichtung nach der US 4,013,856 A kein elektrisches Kontrollsignal generiert werden, um feststellen zu können, welcher der Not-Aus-Schaltvorrichtungen aktiviert ist, um dieses möglichst zeitnah zu deaktivieren und somit die Schaltstellung für die erneute Funktionsaufnahme der elektrisch betriebenen Maschine zu ermöglichen.A disadvantage of this prior art is that the emergency stop switching device is installed exclusively in an electrically operated machine. Therefore, if a plurality of such machines are combined in a circuit, it can not be determined by pressing one of the emergency stop switch, which of the emergency stop buttons was actually operated. In addition, by the emergency stop switching device according to the US 4,013,856 A no electrical control signal can be generated in order to determine which of the emergency stop switching devices is activated in order to deactivate this as soon as possible and thus to enable the switching position for the re-function recording of the electrically operated machine.

Es ist daher Aufgabe der Erfindung, eine Notaus-Schaltvorrichtung der eingangs genannten Gattung zur Verfügung zu stellen, mittels der zum einen eine zuverlässige Deaktivierung und Abschaltung einer elektrisch betriebenen Maschine von einem Schaltkreis in einer Notfallsituation möglich ist und zum anderen soll durch die erfindungsgemäße Notaus-Schaltvorrichtung ein elektrisches Kontrollsignal generiert werden, durch das ohne zeitliche Verzögerung erkennbar ist, welche der in einer Maschine oder Anlage eingesetzten Notaus-Schaltvorrichtung betätigt worden ist.It is therefore an object of the invention to provide an emergency stop switching device of the type mentioned, by means of a reliable deactivation and shutdown of an electrically operated machine from a circuit in an emergency situation is possible and on the other hand by the emergency Switching device, an electrical control signal can be generated by which it can be seen without delay, which has been operated in an engine or system emergency stop switching device.

Diese Aufgaben werden mit den Merkmalen des kennzeichnenden Teils von Patenanspruch 1 gelöst.These objects are achieved with the features of the characterizing part of patent claim 1.

Weitere vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous developments of the invention will become apparent from the dependent claims.

Dadurch, dass in der Mitnahmehülse eine Kontaktbrücke vorgesehen ist, die im betätigten Zustand der Schaltvorrichtung einen Kontrollschalter aktiviert, so dass durch diesen ein auswertbares elektrisches Signal entsteht, kann beispielsweise an einer externen Kontrolleinheit festgestellt werden, welche in der Maschinenanlage vorhandene Notaus-Schaltvorrichtung betätigt wurde. Somit ist eine unverzüglich Deaktivierung der Notaus-Schaltvorrichtung möglich, wodurch die Stillstandszeiten der Anlage auf eine Minimum reduziert wird, denn eine zeitaufwendige Nachforschung, welcher der vorhandenen Notaus-Schaltvorrichtungen die Anlage stillgesetzt hat, entfällt.The fact that in the driving sleeve a contact bridge is provided which activates a control switch in the actuated state of the switching device, so that an evaluable electrical signal is generated by this, can be determined, for example, to an external control unit, which was operated in the machinery existing emergency stop switching device , Thus, an immediate deactivation of the emergency stop switching device is possible, whereby the downtime of the system is reduced to a minimum, because a time-consuming investigation, which has shut down the existing emergency stop switching equipment, eliminated.

Es ist besonders vorteilhaft, wenn der das Kontrollsignal generierende Kontrollschalter im Zentrum der Schaltvorrichtung, nämlich in einem Hohlraum einer Mitnahmehülse, angeordnet ist, denn üblicherweise sind in den bekannten Schaltvorrichtungen im Zentrum des Hohlraumes LED-Leuchten untergebracht, um die Schaltvorrichtung auch im abgedunkelten Raum oder bei Sichteinschränkungen, beispielsweise durch Rauch oder sonstige Umweltverschmutzungen ohne weiteres erkennen und damit bedienen zu können. Die erfindungsgemäße Schaltvorrichtung kann daher in bestehende Notaus-Schaltvorrichtungen eingebracht werden, denn diese können mit den erfindungsgemäßen Merkmalen, insbesondere mit der Kontrollbrücke im Zentrum der Schaltvorrichtung ausgerüstet werden, um im Betätigungszustand der Notaus-Schaltvorrichtung das Kontrollsignal zu erzeugen.It is particularly advantageous if the control signal generating the control switch in the center of the switching device, namely in a cavity of a driving sleeve, is arranged, because usually LED lights are housed in the known switching devices in the center of the cavity to recognize the switching device in the dark room or in visual restrictions, such as smoke or other environmental pollution easily and thus to operate. The switching device according to the invention can therefore be incorporated into existing emergency stop switching devices, because they can be equipped with the features of the invention, in particular with the control bridge in the center of the switching device to generate the control signal in the operating state of the emergency stop switching device.

Die Ausleuchtung der Betätigungskappe der Notaus- Schaltvorrichtung kann unmittelbar in dieser vorgenommen werden, so dass nach wie vor die Lokalisation der Betätigungskappe in einer Notfallsituation gewährleistet ist. Der entstehende Hohlraum einer handelsüblichen Notaus- Schaltvorrichtung kann daher mit der erfindungsgemäßen Kontaktbrücke versehen werden, so dass auch bereits in Maschinen- Anlagen und Geräten eine Nachrüstung mit den erfindungsgemäßen Merkmal ohne weiteres durchführbar ist.The illumination of the actuating cap of the emergency stop switching device can be made directly in this, so that still the localization of the actuator cap is ensured in an emergency situation. The resulting cavity of a commercial Notaus- switching device can therefore be provided with the contact bridge according to the invention, so that even in machinery and equipment retrofitting with the inventive feature is readily feasible.

In der Zeichnung ist ein erfindungsgemäßes Ausführungsbeispiel im Schnitt dargestellt, das nachfolgend näher erläutert wird.In the drawing, an inventive embodiment is shown in section, which will be explained in more detail below.

Im einzelnen zeigt:

Figur 1a
eine Notaus-Schaltvorrichtung, bestehend aus einem Gehäuse an dem axial verschieblich eine Betätigungskappe gehalten ist, und aus einer im Inneren des Gehäuses angeordnete Mitnahmehülse, die in Richtung auf einen Kontaktschalter bewegbar ist, im unbetätigten Zustand,
Figur 1b
die Notaus-Schaltvorrichtung gemäß Figur 1a um 90° gedreht,
Figur 2a
die Notaus-Schaltvorrichtung gemäß Figur 1a im betätigten Zustand und
Figur 2b
die Notaus-Schaltvorrichtung gemäß Figur 1 b in betätigtem Zustand.
In detail shows:
FIG. 1a
an emergency stop switching device, consisting of a housing on which an actuating cap is axially displaceably held, and of a driving sleeve arranged in the interior of the housing, which is movable in the direction of a contact switch, in the unactuated state,
FIG. 1b
the emergency stop switching device according to FIG. 1a turned by 90 degrees,
FIG. 2a
the emergency stop switching device according to FIG. 1a in the actuated state and
FIG. 2b
the emergency stop switching device according to Figure 1 b in activated state.

Aus den Figuren 1 a, 1 b, 2a und 2b kann eine Notaus-Schaltvorrichtung 1 entnommen werden, durch die eine elektrisch betriebene Maschine 2 von einem Strom-Schaltkreis 3 in einer Notfallsituation getrennt werden kann, so dass der Betrieb der Maschine 2 unverzüglich gestoppt ist. Derartige Maschinen 2 bilden in einem Arbeits- oder Herstellungszyklus eine miteinander synchronisierte Maschinen-Anlage. Wenn eine der in dem Arbeitszyklus integrierten Maschine 2 angehalten wird, muss folglich die gesamte Maschinen-Anlage stillstehen. Wenn die Notfallsituation geklärt und beendet ist, soll die Maschinen-Anlage unverzüglich ihren Betrieb wieder aufnehmen können. Hierzu ist es erforderlich zu erkennen, welche der Schaltvorrichtungen 1 tatsächlich betätigt wurde, um die Maschine 2 wiederum mit dem Schaltkreis 3 zu verbinden und damit die gesamte Maschinen-Anlage in Betrieb zu setzen.From the Figures 1 a, 1 b, 2 a and 2 b For example, an emergency stop switching device 1 can be removed by which an electrically operated machine 2 can be disconnected from a power circuit 3 in an emergency situation, so that the operation of the machine 2 is stopped immediately. Such machines 2 form a synchronized machine system in a work or production cycle. Consequently, if one of the machines 2 integrated in the work cycle is stopped, the entire machine system must stand still. When the emergency situation has been clarified and finished, the machine should be able to resume operation immediately. For this purpose, it is necessary to recognize which of the switching devices 1 has actually been actuated in order to connect the machine 2 in turn to the circuit 3 and thus to put the entire machine system into operation.

Die Schaltvorrichtung 1 umfasst ein fest mit der Maschine 2 verbundenes Gehäuse 4, an dem eine von außen zugängliche Betätigungskappe 5 axial verschieblich in der dargestellten Bewegungsrichtung 9 gehalten ist. Im Inneren des Gehäuses 4 ist eine Mitnahmehülse 7 angeordnet, die fest mit der Betätigungskappe 5 verbunden ist und somit beim axialen Verschieben der Betätigungskappe 5 in deren Bewegungsrichtung 9 verschoben wird. Die Mitnahmehülse 7 wird an der Innenfläche 6 des Gehäuses 4 und die Betätigungskappe 5 an der Außenfläche 6' des Gehäuses 4 abgestützt und geführt gehalten. Die Betätigungskappe 5 und die Mitnahmehülse 7 sind in ihrem Querschnitt kreisförmig ausgebildet. Des Weiteren ist im Inneren des Gehäuses 4 eine Führungshülse 25 eingesetzt, die fest mit der Betätigungskappe 5 verbunden ist, und die sich an der Innenfläche 6 des Gehäuses 4 abstützt, wodurch folglich die Betätigungskappe 5 zusätzlich am Gehäuse 4 axial geführt gehalten wird. Die Betätigungskappe 5 wird demnach an mehreren Auflagen- und Führungsflächen an der Innenfläche 6 und der Außenfläche 6' des Gehäuses 4 zur Anlage gebracht, wodurch ein Verkanten der Betätigungskappe 5 während des Bewegungsvorganges vermieden wird. Es ist damit erreicht, dass in einer Notfallsituation die Betätigungskappe 5 zuverlässig und ohne zeitliche Verzögerung in Bewegungsrichtung 9 verfahren werden kann, um die Maschine 2 von dem Schaltkreis 3 zu trennen.The switching device 1 comprises a fixedly connected to the machine 2 housing 4 to which an externally accessible actuating cap 5 is held axially displaceable in the illustrated direction of movement 9. In the interior of the housing 4, a driving sleeve 7 is arranged, which is fixedly connected to the actuating cap 5 and thus displaced in the axial direction of movement of the actuating cap 9. The driving sleeve 7 is supported and guided on the inner surface 6 of the housing 4 and the actuating cap 5 on the outer surface 6 'of the housing 4. The actuating cap 5 and the driving sleeve 7 are circular in cross-section. Furthermore, inside the housing 4, a guide sleeve 25 is inserted, which is fixedly connected to the actuating cap 5, and which is supported on the inner surface 6 of the housing 4, whereby consequently the actuating cap 5 is additionally held axially guided on the housing 4. The actuating cap 5 is thus brought into abutment against a plurality of bearing and guide surfaces on the inner surface 6 and the outer surface 6 'of the housing 4, whereby a tilting of the actuating cap 5 is avoided during the movement process. It is thus achieved that in an emergency situation, the actuating cap 5 can be moved reliably and without delay in the direction of movement 9 in order to separate the machine 2 from the circuit 3.

Im Bereich des Gehäuses 4, der der Maschine 2 zugewandt ist, verläuft der Schaltkreis 3, der in zwei Leiter 13 mündet, die gemeinsam einen Kontaktschalter 11 bilden. Der Kontaktschalter 11 ist in den Figuren 1 a und 1 b geschlossen. Hierbei handelt es sich um den unbetätigten Zustand der Schaltvorrichtung 1; die Betätigungskappe 5 befindet sich in ihrer Ausgangsposition.In the region of the housing 4, which faces the machine 2, runs the circuit 3, which opens into two conductors 13, which together form a contact switch 11. The contact switch 11 is in the FIGS. 1 a and 1 b closed. This is the unactuated state of the switching device 1; the actuating cap 5 is in its initial position.

Die beiden L-förmig ausgestalteten Leiter 13 werden von einer Schalthülse 12 elektrisch miteinander gekoppelt. Die Schalthülse 12 dient demnach als Schaltelement, um den Kontaktschalter 11 zu schließen bzw. im Betätigungszustand der Schaltvorrichtung 1 zu öffnen. Die Schalthülse 12 ist zu diesem Zweck derart ausgebildet, dass diese mit ihrer dem Kontaktschalter 11 gegenüberliegenden freien Ende in Richtung der Betätigungskappe 5 und der Mitnahmehülse 7 zugewandt ist. Dabei wird die Schalthülse 12 durch die Kraft einer Feder 14 in Richtung der Betätigungskappe 5 und der Mitnahmehülse 7 gedrückt. Die Kraft der Feder 14 wird durch die beiden Leiter 13, die mit ihren horizontal verlaufenden Schenkeln aufeinander zuweisen, abgestützt. Das andere freie Ende der Feder 14 wird an zwei Zapfen 26, die an dem Gehäuse 4 angeformt sind, fixiert.The two L-shaped conductors 13 are electrically coupled together by a switching sleeve 12. The switching sleeve 12 thus serves as a switching element to close the contact switch 11 and to open in the operating state of the switching device 1. The switching sleeve 12 is designed for this purpose such that it faces the contact switch 11 opposite free end in the direction of the actuating cap 5 and the driving sleeve 7. In this case, the shift sleeve 12 is pressed by the force of a spring 14 in the direction of the actuating cap 5 and the driving sleeve 7. The force of the spring 14 is supported by the two conductors 13, which assign each other with their horizontally extending legs. The other free end of the spring 14 is fixed to two pins 26 which are integrally formed on the housing 4.

Aus den Figuren 2a und 2b kann nunmehr der Schalt -oder Betätigungszustand der Schaltvorrichtung 1 entnommen werden. Die Betätigungskappe 5 und die Mitnahmehülse 7 sind in Bewegungsrichtung 9, also in Richtung des Kontaktschalters 11, verschoben. Die Stirnseite 10 der Mitnahmehülse 7, die von der Betätigungskappe 5 abgewandt und die dem Kontaktschalter 11 zugewandt ist, verläuft fluchtend zu dem freien Ende der Schalthülse 12. Die Längsachse 8 des Gehäuses 4 bildet dabei die Symmetrieachse für die Betätigungskappe 5, die Mitnahmehülse 7 sowie für die Schalthülse 12. Beim Betätigen und Herunterdrücken der Betätigungskappe 5 und somit auch der Mitnahmehülse 7 wird die Stirnseite 10 der Mitnahmehülse 7 auf die Schalthülse 12 zur Anlage gebracht und diese gegen die Kraft der Feder 14 von den beiden gegenüberliegenden Leitern 13 abgehoben. Somit wird der Kontaktschalter 11 geöffnet und die Maschine 2 wird von dem Schaltkreis 3 getrennt, deren Energieversorgung wird hierdurch unterbrochen.From the FIGS. 2a and 2 B now the switching or operating state of the switching device 1 can be removed. The actuating cap 5 and the driving sleeve 7 are in the direction of movement 9, ie in the direction of the contact switch 11, moved. The end face 10 of the driving sleeve 7, which faces away from the actuating cap 5 and faces the contact switch 11, is aligned with the free end of the switching sleeve 12. The longitudinal axis 8 of the housing 4 forms the axis of symmetry for the actuating cap 5, the driving sleeve 7 and When the actuating cap 5 and thus also the driving sleeve 7 are actuated and pressed down, the end face 10 of the driving sleeve 7 is brought to bear against the switching sleeve 12 and lifted against the force of the spring 14 by the two opposing conductors 13. Thus, the contact switch 11 is opened and the machine 2 is disconnected from the circuit 3, whose power supply is thereby interrupted.

Im Inneren der Mitnahmehülse 7 ist eine Kontaktbrücke 21 eingesetzt, die im Querschnitt U-förmig ausgebildet ist. Fluchtend zu der Kontaktbrücke 21 ist im Bereich des Kontaktschalters 11 ein Kontrollschalter 22 vorgesehen, der durch zwei Kontaktstifte 24, die zueinander beabstandet angeordnet sind, gebildet wird. Die Kontaktbrücke 21 und der Kontrollschalter 22 bilden folglich einen Kontrollschaltkreis 23, der von dem Kontaktschalter 11 elektrisch getrennt ist und somit einen separaten Schaltkreis bildet.Inside the driving sleeve 7, a contact bridge 21 is used, which is formed in cross-section U-shaped. In alignment with the contact bridge 21, a control switch 22 is provided in the region of the contact switch 11, which is formed by two contact pins 24, which are arranged at a distance from each other. The contact bridge 21 and the control switch 22 thus form a control circuit 23 which is electrically isolated from the contact switch 11 and thus forms a separate circuit.

Um eine zuverlässige und mit Kraft beaufschlagte Anpressung der Kontaktbrücke 21 auf die beiden Kontaktstifte 24 des Kontrollschalters 22 zu erzeugen, ist in einem Hohlraum 16, der in die Mitnahmehülse 7 eingearbeitet ist, eine Haltebuchse 18 eingesetzt, die in Richtung der Kontaktbrücke 21 U-förmig ausgestaltet ist. Zwischen der Haltebuchse 18 und der Kontaktbrücke 21 ist eine Feder 17 eingesetzt, durch die die Kontaktbrücke 21 in Richtung des Kontrollschalters 22, also auf das freie Ende der beiden Kontaktstifte 24, angedrückt wird.In order to produce a reliable and pressurized contact pressure of the contact bridge 21 on the two contact pins 24 of the control switch 22, a retaining sleeve 18 is inserted in a cavity 16 which is incorporated into the driving sleeve 7, which in the direction of the contact bridge 21 U-shaped is designed. Between the retaining sleeve 18 and the contact bridge 21, a spring 17 is inserted, through which the contact bridge 21 in the direction of the control switch 22, ie on the free end of the two contact pins 24, is pressed.

Durch das Betätigen der Schaltvorrichtung 1 wird demnach durch die Betätigungskappe 4 und die mit dieser fest verbundenen Mitnahmehülse 7 der Kontaktschalter 11 geöffnet und die Maschine 2 von dem diese mit Energie versorgenden Schaltkreis 3 getrennt. Zusätzlich dazu wird der Kontrollschaltkreis 23 geschlossen, indem die Kontaktbrücke 21 eine elektrische Verbindung zwischen den beiden Kontaktstiften 24 des Kontrollschalters 22 herstellt. Diese elektrische Verbindung erzeugt ein Kontrollsignal, das in einer externen Steuereinheit erkennbar ist und dem Bedienpersonal exakt angiebt, welche der Schaltvorrichtungen 1, die in einer Maschinen-Anlage vorhanden sind, tatsächlich aktiviert wurde. Sobald daher die Notfallsituation geklärt und bereinigt werden konnte, ist es für das Bedienpersonal ohne zeitliche Verzögerung mögliche, die betätigte Schaltvorrichtung 1 zu ermitteln und zu deaktivieren, um die Maschinen-Anlage insgesamt wieder in Betrieb setzen zu können.By operating the switching device 1 is thus opened by the actuating cap 4 and the driving sleeve 7 fixedly connected to the contact switch 11 and the machine 2 separated from this supplying them with power circuit 3. In addition, the control circuit 23 is closed by the contact bridge 21 makes an electrical connection between the two contact pins 24 of the control switch 22. This electrical connection generates a control signal that is recognizable in an external control unit and indicates exactly to the operating personnel which of the switching devices 1 present in a machine installation has actually been activated. Therefore, as soon as the emergency situation could be clarified and adjusted, it is possible for the operating personnel without delay to detect and deactivate the actuated switching device 1 in order to be able to put the machine system back into operation as a whole.

Claims (5)

  1. A switching device with a plurality of emergency stop switching devices (1) connected in series, in which case each emergency stop switching device (1) is provided with a housing (4) firmly attached to the machine (2), against which an externally accessible actuator cap (5) is held in an axially movable arrangement, with a contact switch (11) accommodated in the housing (4) which is closed when the switching device (1) is in the non-actuated condition, with a driver sleeve (7) that is supported against the inside surface (6) of the housing (4) and is firmly connected to the actuator cap (5), with the free end (10) of the driver sleeve (7) opposite to the actuator cap (5) facing the contact switch (11) and disconnecting it from the circuit (3) in the actuated condition, with a contact bridge (21) locked within a cavity (16) in the driver sleeve (7), with a check switch (22) supported against the housing in the movement direction (9) of the contact bridge (21) and flush with it, with the check switch (22) being located at a distance from the contact bridge (21) when the switching device (1) is non-actuated, and that the check switch (22) is closed by the contact bridge (21) when the switching device (1) is in actuated condition,
    characterised in that,
    the machine (2) is electrically operated in a circuit (3), that the machine (2) can be disconnected from the circuit (3) by the switching device (1) and that each of the emergency stop switching devices (1) is electrically connected to one another via the check switch (22).
  2. A switching device in accordance with Claim 1,
    characterised in that,
    the check switch (22) consists of two contact pins (24) at a distance from one another, and that the two contact pins (24) are connected together electrically by the contact bridge (21) when the emergency stop switching device (1) is in the actuated condition.
  3. The switching device in accordance with Claim 1 or 2,
    characterised in that,
    the contact bridge (21) is supported in the cavity (16) against the force of a spring (17), and that the free end of the spring (17) opposite to the contact bridge (21) is inserted into a retaining bush (18) that is firmly connected to the actuator cap (5).
  4. The switching device in accordance with one or more of the aforementioned claims,
    characterised in that,
    closing the check switch (22) allows an electrical signal to be generated, by means of which the actuation of the emergency stop switching device (1) can be detected in an external control unit.
  5. The switching device in accordance with one or more of the aforementioned claims,
    characterised in that,
    the check switch (22) and the contact switch (11) are electrically separated from one another.
EP08019160.4A 2007-11-21 2008-11-03 Emergency stop switching device Active EP2063443B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007056191A DE102007056191A1 (en) 2007-11-21 2007-11-21 Emergency stop switch device

Publications (3)

Publication Number Publication Date
EP2063443A2 EP2063443A2 (en) 2009-05-27
EP2063443A3 EP2063443A3 (en) 2010-09-22
EP2063443B1 true EP2063443B1 (en) 2016-05-11

Family

ID=40342424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08019160.4A Active EP2063443B1 (en) 2007-11-21 2008-11-03 Emergency stop switching device

Country Status (4)

Country Link
US (1) US8003909B2 (en)
EP (1) EP2063443B1 (en)
CN (1) CN101441953B (en)
DE (1) DE102007056191A1 (en)

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CN106098423B (en) * 2016-08-05 2018-01-02 新乡市光明电器有限公司 High current urgent power-off switch
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FR3077418B1 (en) * 2018-01-26 2020-02-07 Apem EMERGENCY STOP DEVICE
FR3088135B1 (en) * 2018-11-07 2020-10-09 Schneider Electric Ind Sas SWITCHING KIT WITH SECURE HANGING SOLUTION FOR EMERGENCY STOP DEVICE
CN110676082B (en) * 2019-10-23 2021-06-25 广东海洋大学 Electric automation equipment trouble emergency power-off device
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Also Published As

Publication number Publication date
CN101441953B (en) 2013-02-13
US8003909B2 (en) 2011-08-23
EP2063443A2 (en) 2009-05-27
CN101441953A (en) 2009-05-27
DE102007056191A1 (en) 2009-05-28
EP2063443A3 (en) 2010-09-22
US20090218206A1 (en) 2009-09-03

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