EP0011133B1 - Switch with contacts convertible from normally open to normally closed and vice versa - Google Patents

Switch with contacts convertible from normally open to normally closed and vice versa Download PDF

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Publication number
EP0011133B1
EP0011133B1 EP79103868A EP79103868A EP0011133B1 EP 0011133 B1 EP0011133 B1 EP 0011133B1 EP 79103868 A EP79103868 A EP 79103868A EP 79103868 A EP79103868 A EP 79103868A EP 0011133 B1 EP0011133 B1 EP 0011133B1
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EP
European Patent Office
Prior art keywords
function
contact
housing
normally
insulating member
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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
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EP79103868A
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German (de)
French (fr)
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EP0011133A1 (en
Inventor
Siegfried Alter
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.)
Metzenauer and Jung GmbH
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Metzenauer and Jung GmbH
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Priority to AT79103868T priority Critical patent/ATE443T1/en
Publication of EP0011133A1 publication Critical patent/EP0011133A1/en
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Publication of EP0011133B1 publication Critical patent/EP0011133B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0012—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for converting normally open to normally closed switches and vice versa

Definitions

  • the invention relates to a switch arrangement with switches fully equipped for both the normally closed and for the normally open function, in which a function type is blocked by an insulating part which can optionally be brought in between the contacts which act as a normally closed contact or as a normally open contact, the insulating part being in both positions has stops located outside the contact points, which ensure an air gap between the contact pieces blocked on a contact.
  • a switch arrangement according to the first part of claim 1 is known (DE-B2-2 622 100), in which the insulating part is designed as a roller which can be rotated in the housing and which has lugs which can be pivoted between the contact pieces which interact either as openers or closers are.
  • the rotation of the roller can be carried out from the outside with a screwdriver when the device is fully assembled. This adjustment is therefore very convenient, but not secured against unauthorized and erroneous handling. Exchanging the opening / closing function can, depending on the application, lead to unmistakable destruction in production systems etc. and also to the endangerment of people.
  • DE-C-1 490 042 discloses a switch arrangement with switches that can be changed either as openers or closers, in which isolating parts are plugged directly onto contact bridges or fixed contact parts to change the function. Since these switches have to be largely taken apart, they are largely secured against unauthorized and erroneous changes, but each change of function is associated with a considerable amount of work. The same difficulties also exist with the switch known from US-A-3781 501, in which a switching cross member assembly and a cover assembly have to be removed for a change of function, rotated around different axes in each case and then reinstalled in the switch housing.
  • the invention has for its object to provide a switch assembly according to the first part of claim 1, in which the change in the type of function of the switch on the one hand can be carried out conveniently and quickly, but on the other hand an unwanted, erroneous or unauthorized changeover is largely excluded.
  • the insulating part is formed by a plate which can be attached to a side wall of the housing and which is provided with the pin-shaped stops projecting through openings in the housing side wall into the path of movement of a switching bridge to be blocked, and in two by 180 ° implementable different positions can be applied to the side wall of the housing.
  • the advantage of the invention is that the switches no longer have to be taken apart for a change in function, but that only an attached insulating part has to be removed from the housing and re-attached to the housing in a position turned through 180 °.
  • a change of function can be carried out very quickly and easily, without endangering the functional reliability of the switching arrangement.
  • the plate attached to the housing does not induce modification work and precludes an unwanted change in the function of the switches.
  • the housings of the normally closed and normally open are generally arranged closely next to each other on a rail or on a contactor, so that the plates to be implemented for a change of function cover each other and only after the switch has been removed from its holder Allow change of function.
  • the function type can be conveniently changed over by manipulations to be carried out outside the housing, but at the same time extensive protection against unintentional or unauthorized changeover is achieved.
  • the implementable plate-shaped insulating part bears on its upper and on its lower end face connection designations for opener or closer function, of which, depending on the installation position, only the relevant designations are on the visible side of the switch arrangement.
  • the insulating part can also be designed in such a way that it covers fixed connection designations for the two types of functions in such a way that only the function number of the set switch function can be read in each case.
  • FIG. 1 to 4 show the housing 1 of a mechanically operated two-pole switch with the four terminals 2, the fixed contact pairs 3 and with the two switching chambers 4, which are formed on the one hand by side walls 5 of the housing 1 and on the other hand by the central wall of the movable switching crossbar 6 , which is pressed into its end position by a spring 7.
  • each switching chamber there are two movable switching bridges 8, 8 ', 8 ", 8"' which, depending on the position of the switching crossbar 6, both come into contact with the fixed contact pairs 3 and make contact.
  • the movable switching bridges 8 to 8 "' are supported by springs 9 in the switching crossmember 6.
  • a plurality of openings 10 are provided according to the invention for receiving or passing pin-shaped stops 11, which are attached to an insulating part 12, 12 'which can be plugged onto the side walls 5 laterally and there by means of the resilient latching arms 13 is fixed.
  • the movable switching bridge 8 comes to rest on the stops 11 on the left and thus no longer has any functional significance, while in the right switching chamber the movable switching bridge 8 "acts as a closer on the fixed contact pair 3 Contact there.
  • Terminal designations are printed on the end faces of the convertible insulating parts 12, 12 ', each of which is covered in the housing at the bottom and can be read from above.
  • the insulating part 12 of the left switching chamber inserted for the “opener” function shows the connection designations “21”, “22”, while the insulating part 12 ′ shows the connection designations “13”, “14” for the normally open function.
  • the insulating parts 12, 12 ' are identical, with the exception of the orientation of their imprint.
  • the four-pole actuator is slid onto the side of the auxiliary contactor 16 and fixed there.
  • the driver device 17 couples with the driver 18 of the movable switching crossbeam 19 and thus connects the auxiliary contactor and the attachment to form a functional unit.
  • variable contacts on the right and left are assigned variable connection designations, which can be done in the manner explained with reference to FIG. 3.
  • Fig. 8 shows a switch arrangement in which each contact piece of a movable switching bridge 23 between a pair of electrical interconnected fixed contact pieces 24/25, 26/27.
  • the housing 28 has openings 29, 30 aligned with the two end positions of the switching bridge 23, through which the stops 31 provided on insulating parts, such as the plates according to the first exemplary embodiments, can be inserted from the outside in such a way that the switching bridge 23 in each case only on one side can make contact with the fixed contact pieces 24 to 27.
  • the switch is set up as a break contact.
  • the insulating part is pulled off and - with the switching crossbar depressed - inserted in a position rotated by 180 ° with its locking pins into the upper openings 29, after which the switching bridge assumes the dash-dotted position 32.

Abstract

Switch arrangement with switches completely equipped both for normally closed and for normally open operation, in which, by means of an insulating part which can be selectively placed operatively with respect to the contact pieces which cooperate as breaker or the contact pieces which cooperate as maker, one type of operation in each case is blocked. For this the insulating part has abutment stops, which in both inserted positions in each case lie outside the contact places and which assure an air spacing between the contact pieces which thereby are blocked from making contact.

Description

Die Erfindung betrifft eine Schalteranordnung mit sowohl für die Öffner- als auch für die Schließerfunktion vollständig ausgerüsteten Schaltern, bei denen durch ein wahlweise zwischen die als Öffner oder die als Schließer zusammenwirkenden Kontaktstücke bringbares Isolierteil jeweils eine Funktionsart blockiert ist, wobei das Isolierteil in beiden Lagen jeweils außerhalb der Kontaktstellen liegende Anschläge aufweist, welche zwischen den an einer Kontaktgabe blockierten Kontaktstücken einen Luftabstand sicherstellen.The invention relates to a switch arrangement with switches fully equipped for both the normally closed and for the normally open function, in which a function type is blocked by an insulating part which can optionally be brought in between the contacts which act as a normally closed contact or as a normally open contact, the insulating part being in both positions has stops located outside the contact points, which ensure an air gap between the contact pieces blocked on a contact.

Es ist eine Schalteranordnung gemäß dem ersten Teil des Patentanspruches 1 bekannt (DE-B2-2 622 100), bei der das Isolierteil als eine im Gehäuse drehbare Walze ausgebildet ist, welche Ansätze aufweist, die zwischen die entweder als Öffner oder Schließer zusammenwirkenden Kontaktstücke schwenkbar sind. Die Verdrehung der Walze kann dort bei fertigmontierten Gerät von außen her mittels eines Schraubendrehers vorgenommen werden. Diese Verstellmöglichkeit ist somit zwar sehr bequem, jedoch nicht gegen unbefugte und irrtümliche Handhabung gesichert. Eine Vertauschung der Öffner/Schließfunktion kann jedoch je nach Einsatzfall zu unübersehbaren Zerstörungen in Fertigungsanlagen usw. und auch zur Gefährdung von Personen führen.A switch arrangement according to the first part of claim 1 is known (DE-B2-2 622 100), in which the insulating part is designed as a roller which can be rotated in the housing and which has lugs which can be pivoted between the contact pieces which interact either as openers or closers are. The rotation of the roller can be carried out from the outside with a screwdriver when the device is fully assembled. This adjustment is therefore very convenient, but not secured against unauthorized and erroneous handling. Exchanging the opening / closing function can, depending on the application, lead to unmistakable destruction in production systems etc. and also to the endangerment of people.

Durch die DE-C-1 490 042 ist eine Schalteranordnung mit wahlweise als Öffner oder Schließer veränderbaren Schaltern bekannt, bei denen zur Funktionsänderung Isolierteile unmittelbar auf Kontaktbrücken oder feststehende Kontaktteile aufgesteckt werden. Da diese Schalter dazu weitgehend auseinander genommen werden müssen, sind sie zwar gegen unbefugtes und irrtümliches Umstellen weitestgehend gesichert, aber jeder Funktionswechsel ist mit erheblichem Arbeitsaufwand verbunden. Die gleichen Schwierigkeiten liegen auch bei dem durch die US-A-3781 501 bekannten Schalter vor, bei welchem für einen Funktionswechsel eine Schalttraversenbaugruppe und eine Deckelbaugruppe ausgebaut, um jeweils unterschiedliche Achsen gedreht und dann erneut in das Schaltergehäuse eingebaut werden müssen.DE-C-1 490 042 discloses a switch arrangement with switches that can be changed either as openers or closers, in which isolating parts are plugged directly onto contact bridges or fixed contact parts to change the function. Since these switches have to be largely taken apart, they are largely secured against unauthorized and erroneous changes, but each change of function is associated with a considerable amount of work. The same difficulties also exist with the switch known from US-A-3781 501, in which a switching cross member assembly and a cover assembly have to be removed for a change of function, rotated around different axes in each case and then reinstalled in the switch housing.

Der Erfindung liegt die Aufgabe zugrunde, eine Schalteranordnung nach dem ersten Teil des Patentanspruchs 1 zu schaffen, bei der die Umstellung der Funktionsart der Schalter einerseits zwar bequem und rasch durchführbar ist, andererseits aber eine ungewollte, irrtümliche oder unbefugte Umstellung weitestgehend ausgeschlossen ist.The invention has for its object to provide a switch assembly according to the first part of claim 1, in which the change in the type of function of the switch on the one hand can be carried out conveniently and quickly, but on the other hand an unwanted, erroneous or unauthorized changeover is largely excluded.

Die Lösung dieser Aufgabe ist erfindungsgemäß dadurch erreicht, daß das Isolierteil von einer an eine Seitenwand des Gehäuses ansetzbaren Platte gebildet ist, welche mit den durch Öffnungen der Gehäuseseitenwand hindurch in die Bewegungsbahn einer jeweils zu blockierenden Schaltbrücke hineinragenden stiftförmigen Anschlägen versehen und in zwei um 180° umsetzbaren unterschiedlichen Stellungen an die Seitenwand des Gehäuses ansetzbar ist.This object is achieved according to the invention in that the insulating part is formed by a plate which can be attached to a side wall of the housing and which is provided with the pin-shaped stops projecting through openings in the housing side wall into the path of movement of a switching bridge to be blocked, and in two by 180 ° implementable different positions can be applied to the side wall of the housing.

Durch die Erfindung wird der Vorteil erreicht, daß die Schalter für eine Funktionsänderung nicht mehr auseinandergenommen werden müssen, sondern daß lediglich ein angesetztes Isolierteil vom Gehäuse abgenommen und in einer um 180° gewendeten Lage wieder an das Gehäuse angesetzt werden muß. Hierdurch kann ein Funktionswechsel mit einfachsten Handgriffen sehr rasch und ohne Gefährdung der Funktionssicherung der Schaltanordnung durchgeführt werden. Andrerseits verleitet aber die an das Gehäuse angesetzte Platte nicht zu Umbaumanipulationen und schließt eine ungewollte Umstellung der Funktionsart der Schalter aus. Hinzu kommt, daß in der Praxis die Gehäuse der Öffner und Schließer im allgemeinen auf einer Schiene oder auf einem Schütz zu mehreren eng nebeneinander angeordnet sind, so daß die für einen Funktionswechsel umzusetzenden Platten sich gegenseitig abdecken und erst nach Abnahme des Schalters von seiner Halterung eine Funktionsänderung gestatten. Durch die Erfindung werden also gleichzeitig einerseits eine bequeme Umstellbarkeit der Funktionsart durch außerhalb des Gehäuses vorzunehmende Manipulationen, gleichzeitig aber auch ein weitgehender Schutz gegen ungewolltes oder unbefugtes Umstellen erzielt.The advantage of the invention is that the switches no longer have to be taken apart for a change in function, but that only an attached insulating part has to be removed from the housing and re-attached to the housing in a position turned through 180 °. As a result, a change of function can be carried out very quickly and easily, without endangering the functional reliability of the switching arrangement. On the other hand, however, the plate attached to the housing does not induce modification work and precludes an unwanted change in the function of the switches. In addition, in practice the housings of the normally closed and normally open are generally arranged closely next to each other on a rail or on a contactor, so that the plates to be implemented for a change of function cover each other and only after the switch has been removed from its holder Allow change of function. By means of the invention, at the same time, the function type can be conveniently changed over by manipulations to be carried out outside the housing, but at the same time extensive protection against unintentional or unauthorized changeover is achieved.

In Weiterbildung der Erfindung kann ferner vorgesehen werden, daß das umsetzbare plattenförmige Isolierteil an seiner oberen und an seiner unteren Stirnseite Anschlußbezeichnungen jeweils für Öffner- oder Schließerfunktion trägt, von denen je nach Einbaulage jeweils nur die zutreffenden Bezeichnungen an der Sichtseite der Schalteranordnung liegen. Das Isolierteil kann dabei auch derart ausgebildet werden, daß es gehäusefeste Anschlußbezeichnungen für die beiden Funktionsarten derart abdeckt, daß jeweils nur die Funktionsziffer der eingestellten Schalterfunktion lesbar ist. Durch diese Maßnahmen ist sichergestellt, daß gleichzeitig mit dem Wechsel der Funktionsart auch die an den Anschlußklemmen vorliegenden Anschlußbezeichnungen zwangsläufig korrekt geändert werden.In a further development of the invention, it can further be provided that the implementable plate-shaped insulating part bears on its upper and on its lower end face connection designations for opener or closer function, of which, depending on the installation position, only the relevant designations are on the visible side of the switch arrangement. The insulating part can also be designed in such a way that it covers fixed connection designations for the two types of functions in such a way that only the function number of the set switch function can be read in each case. These measures ensure that at the same time that the function type is changed, the connection designations present at the connection terminals are also necessarily correct.

Weitere, in den Unteransprüchen angegebene Merkmale kennzeichnen sehr zweckdienliche konstruktive Verwirklichungen des Erfindungsgegenstandes.Further features specified in the subclaims characterize very useful constructive realizations of the subject matter of the invention.

Die Erfindung wird im folgenden an Hand mehrerer in der Zeichnung dargestellter Ausführungsbeispiele näher beschrieben, wobei zeigt

  • Fig. 1 einen Schnitt durch die Schaltkammer einer handbetätigten Schalteranordnung nach der Erfindung,
  • Fig. 2 einen Schnitt gemäß der Linie 11-11 in Fig.1,
  • Fig. 3 eine Draufsicht auf den Schalter nach Fig.1,
  • Fig. 4 zeigt den Schalter in einer Darstellung analog Fig. 2, jedoch in betätigter Stellung,
  • Fig. 5 einen Schnitt durch den Schaltervorsatz eines vierpoligen Schalteranbauteils für ein vierpoliges Hilfsschütz,
  • Fig. 6 einen Schnitt gemäß der Linie VI-VI in Fig. 5,
  • Fig. 7 eine Draufsicht auf den Schaltervorsatz mit Darstellung der wechselbaren Anschlußbezeichnungen,
  • Fig. eine weitere Ausführungsform für eine handbetätigte Schalteranordnung nach der Erfindung.
The invention is described below with reference to several exemplary embodiments shown in the drawing, wherein shows
  • 1 shows a section through the switching chamber of a manually operated switch arrangement according to the invention,
  • 2 shows a section along the line 11-11 in Figure 1,
  • Fig. 3 is a plan view of the switch Fig.1,
  • 4 shows the switch in a representation analogous to FIG. 2, but in the actuated position,
  • 5 shows a section through the switch attachment of a four-pole switch attachment for a four-pole auxiliary contactor,
  • 6 shows a section along the line VI-VI in FIG. 5,
  • 7 is a plan view of the switch attachment showing the interchangeable terminal designations,
  • Fig. A further embodiment for a manually operated switch assembly according to the invention.

Die Fig. 1 bis 4 zeigen das Gehäuse 1 eines mechanisch betätigten zweipoligen Schalters mit den vier Anschlußklemmen 2, den Festkontaktpaaren 3 und mit den zwei Schaltkammern 4, die einerseits durch Seitenwände 5 des Gehäuses 1 gebildet werden und andrerseits durch die Mittelwand der beweglichen Schalttraverse 6, die durch eine Feder 7 in ihre Endstellung gedrückt wird.1 to 4 show the housing 1 of a mechanically operated two-pole switch with the four terminals 2, the fixed contact pairs 3 and with the two switching chambers 4, which are formed on the one hand by side walls 5 of the housing 1 and on the other hand by the central wall of the movable switching crossbar 6 , which is pressed into its end position by a spring 7.

In jeder Schaltkammer befinden sich zwei bewegliche Schaltbrücken 8, 8', 8", 8"', die je nach Stellung der Schalttraverse 6 beide an den Festkontaktpaaren 3 zur Anlage kommen und Kontakt geben. Die beweglichen Schaltbrücken 8 bis 8"' sind über Federn 9 in der Schalttraverse 6 abgestützt.In each switching chamber there are two movable switching bridges 8, 8 ', 8 ", 8"' which, depending on the position of the switching crossbar 6, both come into contact with the fixed contact pairs 3 and make contact. The movable switching bridges 8 to 8 "'are supported by springs 9 in the switching crossmember 6.

In den Seitenwänden 5 des Gehäuses 1 sind erfindungsgemäß mehrere Öffnungen 10 zur Aufnahme bzw. zum Durchlaß von stiftförmigen Anschlägen 11 angebracht, die an einem Isolierteil 12, 12' angebracht sind, welches sich seitlich auf die Seitenwände 5 aufstecken läßt und dort mittels der federnden Rastarme 13 fixiert wird.In the side walls 5 of the housing 1, a plurality of openings 10 are provided according to the invention for receiving or passing pin-shaped stops 11, which are attached to an insulating part 12, 12 'which can be plugged onto the side walls 5 laterally and there by means of the resilient latching arms 13 is fixed.

Die beiden stiftförmigen Anschläge 11 jedes Isolierteiles 12, 12' ragen dabei in den Bewegungsbereich der rückwärtigen Abbiegungen 14 der C-förmig ausgebildeten Schaltbrücken 8 und 8"' hinein und verhindern durch Einschränkungen des Weges die Kontaktgabe dieser beweglichen Schaltbrücken an den feststehenden Kontaktpaaren 3. Die Anschläge 11 liegen in einem beträchtlichen Abstand von den Kontaktstellen. Je nachdem, ob das Isolierteil 12 in der einen oder um 180° gedreht in der anderen Stellung eingesetzt wird, wird auf diese Weise jeweils die Öffner- oder Schließerbrücke an der Kontaktgabe gehindert. In Fig. und 4 ist die dargestellte linke Schaltkammer als Öffner und die rechte Schaltkammer als Schließer gezeichnet. Demzufolge macht die bewegliche Schaltbrücke 8' der linken Kammer an dem Festkontaktpaar 3 Kontakt, während in der rechten Schaltkammer die Schaltbrücke 8'" durch die Anschläge 11 an der Kontaktgabe gehindert ist, wobei ein großer, eine einwandfreie Isolierung sicherstellender Luftabstand zwischen den Festkontaktpaaren 3 und den Kontaktstücken der blockierten Schaltbrücke 8'" vorgesehen ist. Bei Betätigung der Schalttraverse 6 kommt nun, wie in Fig.4 gezeigt ist, links die bewegliche Schaltbrücke 8 zur Anlage an den Anschlägen 11 und hat somit keine Funktionsbedeutung mehr, während in der rechten Schaltkammer die bewegliche Schaltbrücke 8" als Schließer an dem Festkontaktpaar 3 Kontakt gibt.The two pin-shaped stops 11 of each insulating part 12, 12 'protrude into the range of movement of the rear bends 14 of the C-shaped switching bridges 8 and 8 "' and prevent the contacting of these movable switching bridges on the fixed contact pairs 3 by restricting the path Stops 11 are located at a considerable distance from the contact points, depending on whether the insulating part 12 is used in one position or rotated through 180 ° in the other position, in this way the normally closed or normally open bridge is prevented from making contact and the illustrated left switching chamber is shown as an opener and the right switching chamber as a closer, so that the movable switching bridge 8 'of the left chamber makes contact with the fixed contact pair 3, while in the right switching chamber the switching bridge 8' "through the stops 11 on the Contact is prevented, with a large, perfect insulation ensure the air gap between the fixed contact pairs 3 and the contact pieces of the blocked switching bridge 8 '"is provided. When the crossbar 6 is actuated, as shown in FIG. 4, the movable switching bridge 8 comes to rest on the stops 11 on the left and thus no longer has any functional significance, while in the right switching chamber the movable switching bridge 8 "acts as a closer on the fixed contact pair 3 Contact there.

An den Stirnseiten der umsetzbaren Isolierteile 12, 12' sind Anschlußbezeichnungen aufgedruckt, die jeweils unten abgedeckt im Gehäuse liegen und von oben lesbar sind. Wie aus Fig. 3 ersichtlich ist, zeigt das für die Funktionsart »Öffner« eingesteckte Isolierteil 12 der linken Schaltkammer die Anschlußbezeichnungen »21«, »22«, während das Isolierteil 12' die Anschlußbezeichnungen »13«, »14« für Schließerfunktion zeigt. Bei dem Ausführungsbeispiel nach den Fig. 1 bis 4 sind die Isolierteile 12, 12' mit Ausnahme der Orientierung ihres Aufdruckes identisch ausgebildet.Terminal designations are printed on the end faces of the convertible insulating parts 12, 12 ', each of which is covered in the housing at the bottom and can be read from above. As can be seen from FIG. 3, the insulating part 12 of the left switching chamber inserted for the “opener” function shows the connection designations “21”, “22”, while the insulating part 12 ′ shows the connection designations “13”, “14” for the normally open function. In the embodiment according to FIGS. 1 to 4, the insulating parts 12, 12 'are identical, with the exception of the orientation of their imprint.

Bei dem in den Fig. 5, 6 und 7 erläuterten Hilfsschaltervorsatz für ein Hilfsschütz sind die veränderbaren Kontakte in die äußeren Kammern gelegt und damit wiederum dem Einfluß der umsetzbaren Isolierteile 15, 15' zugänglich. Da der Funktionswechsel auf diese Weise einfach und problemlos ist, reduziert man die Vorratshaltung von vorher drei unterschiedlichen Hilfsschaltervorsätzen auf nur eine Ausführung.In the auxiliary switch attachment for an auxiliary contactor explained in FIGS. 5, 6 and 7, the changeable contacts are placed in the outer chambers and thus in turn are accessible to the influence of the implementable insulating parts 15, 15 '. Since the function change is simple and easy in this way, the stock of three different auxiliary switch attachments is reduced to just one version.

Der vierpolige Vorsatz wird auf das Hilfsschütz 16 seitlich aufgeschoben und dort fixiert. Dabei koppelt sich die Mitnehmereinrichtung 17 mit dem Mitnehmer 18 der beweglichen Schalttraverse 19 und verbindet somit Hilfsschütz und Vorsatz zu einer Funktionseinheit.The four-pole actuator is slid onto the side of the auxiliary contactor 16 and fixed there. The driver device 17 couples with the driver 18 of the movable switching crossbeam 19 and thus connects the auxiliary contactor and the attachment to form a functional unit.

Da die mittleren Kontakte 20, 21 unverändert bleiben, wird auch deren Anschlußbezeichnung, in diesem Fall »61«, »62« und »71«, »72« unverändert aufgedruckt. Den rechts und links liegenden veränderlichen Kontakten sind veränderliche Anschlußbezeichnungen zugeordnet, was in der an Hand Fig. 3 erläuterten Weise erfolgen kann.Since the middle contacts 20, 21 remain unchanged, their connection designation, in this case "61", "62" and "71", "72" is also printed unchanged. The variable contacts on the right and left are assigned variable connection designations, which can be done in the manner explained with reference to FIG. 3.

Um die Isolierteile 15, 15', welche für den Funktionswechsel verantwortlich sind, jedoch einheitlich bedrucken zu können, ist es auch möglich, diese Teile lediglich mit den Funktionsziffern »1-2«, »3-4« zu bedrucken und diese mit den auf den Bezeichnungsfeldern 22 des Vorsatzgehäuses angebrachten Platzziffern z. B. »5« und »8« zu den zweistelligen Normbezeichnungen wie »51«, »52«, »83« und »84« zusammentreten zu lassen. Auf diese Weise würde ein Verwechseln der Isolierteile 15, 15' ohne Bedeutung sein, da der Aufdruck sowohl für die linke wie auch für die rechte Seite gleich ist. Falls diese Unverwechselbarkeit auch bei einer Bedruckung gemäß Fig. 3 erreicht werden soll, müßten die Isolierteile 12, 12' etwas unterschiedlich gestaltet werden, z. B. durch Hinzufügung eines Paßnockens derart, daß das Isolierteil 12 ausschließlich auf der linken Seite und das Isolierteil 12' ausschließlich auf der rechten Seite des Schaltergehäuses ansetzbar ist.In order to be able to print the insulating parts 15, 15 ', which are responsible for the change of function, uniformly, it is also possible to print these parts only with the function numbers "1-2", "3-4" and these with the the designation fields 22 of the front housing attached digits z. B. »5« and »8« to meet the two-digit standard names such as »51«, »52«, »83« and »84«. In this way, confusing the insulating parts 15, 15 'would be of no importance, since the print is the same for both the left and the right side. If this distinctive character is also to be achieved with printing according to FIG. 3, the insulating parts 12, 12 'would have to be designed somewhat differently, e.g. B. by adding a fitting cam such that the insulating part 12 can only be applied on the left side and the insulating part 12 'only on the right side of the switch housing.

Fig. 8 zeigt eine Schalteranordnung, bei welcher jedes Kontaktstück einer beweglichen Schaltbrücke 23 zwischen einem Paar elektrisch miteinander verbundener fester Kontaktstücke 24/25, 26/27 liegt. Das Gehäuse 28 besitzt auf die beiden Endstellungen der Schaltbrücke 23 ausgerichtete Öffnungen 29, 30, durch welche die an lsolierteilen wie den Platten nach den ersten Ausführungsbeispielen vorgesehenen Anschläge 31 von außen her derart eingesteckt werden können, daß die Schaltbrücke 23 jeweils nur nach einer Seite hin mit den festen Kontaktstücken 24 bis 27 Kontakt geben kann. In der gezeigten Stellung ist der Schalter als Öffner eingerichtet. Zum Umwandeln in einen Schließer wird das Isolierteil abgezogen und - bei niedergedrückter Schalttraverse - in einer um 180° gewendeten Lage mit seinen Sperrstiften in die oberen Öffnungen 29 eingesteckt, wonach die Schaltbrücke die strichpunktierte Lage 32 einnimmt.Fig. 8 shows a switch arrangement in which each contact piece of a movable switching bridge 23 between a pair of electrical interconnected fixed contact pieces 24/25, 26/27. The housing 28 has openings 29, 30 aligned with the two end positions of the switching bridge 23, through which the stops 31 provided on insulating parts, such as the plates according to the first exemplary embodiments, can be inserted from the outside in such a way that the switching bridge 23 in each case only on one side can make contact with the fixed contact pieces 24 to 27. In the position shown, the switch is set up as a break contact. To convert it into a closer, the insulating part is pulled off and - with the switching crossbar depressed - inserted in a position rotated by 180 ° with its locking pins into the upper openings 29, after which the switching bridge assumes the dash-dotted position 32.

Claims (7)

1. A switch device having switches completely equipped both for the normally-closed auxiliary contakt function and for the normally-open auxiliary contact function, wherein one kind of function at a time is blocked by an insulating member (12, 12'; 15, 15') which can be brought selectively between the contact studs cooperating as normally-closed auxiliary contacts or those cooperating as normally open auxiliary contacts, the insulating member (12, 12'; 15, 15') comprising stops (11; 31) which lie outside the contact positions in each of its two positions and which ensure an air space between the contact studs (8', 3, 8"', 3', 23, 25, 27) blocked from making contact, characterised in that the insulating member (12, 12'; 15, 15') is formed from a plate which can be applied against one side wall (5) of the housing (1; 28) and which is provided with the pin-shaped stops (11, 31) projecting through openings (11; 29, 30) in the side wall of the housing into the path of movement of the particular connecting bridges (8 or 8'; 8" or 8"', 23) to be blocked and can be applied against the side wall of the housing (1; 28) in two different positions which can be transposed by 180°.
2. A switch device as claimed in Claim 1 having a pair of fixed contacts (3) and two movable connecting bridges (8, 8'; 8", 8"') enclosing the pair of fixed contacts (3) between them, characterised in that the side wall (5) of the housing (1) comprises openings (10) aligned with the path of movement of the two connecting bridges (8, 8'; 8", 8"') at each side of the pair of fixed contacts (3).
3. A switch device as claimed in Claim 1, wherein each contact stud of a connecting bridge (23) lies between a pair of fixed contact studs (24, 25) which are electrically connected to one another, characterised in that the housing (28) is provided with openings (29, 30) to receive the pin-shaped stops (31) at each side of the centre line of the fixed studs (24, 25). (Figure 8).
4. A switch device as claimed in Claim 1, characterised in that the plate-shaped insulating member (12, 12'; 15, 15') carries connection marks (21, 22; 13, 14) for the normally-closed auxiliary contact function or the normally-open auxiliary contact function at the ends.
5. A switch device as claimed in Claim 4, characterised in that the plate-shaped insulating member (15, 15') covers connection marks fixed to the housing for both kinds of function in such a manner that only the function figure of the set switch function can be read.
6. A switch device as claimed in Claim 2, characterised in that the connecting bridges (8, 8', 8", 8"') are C-section members with their bottom arm adjacent to thefixed pair of contacts (3), and that the stops (11) of the insulating member (12) engage in the path of movement of the two bent portions (14) of the C-section members.
7. A switch device as claimed in one of the Claims 1 to 6, characterised in that the plate-shaped insulating member (12) is provided with detent arms (13) engaging behind the corners of the housing, at ist ends.
EP79103868A 1978-11-06 1979-10-09 Switch with contacts convertible from normally open to normally closed and vice versa Expired EP0011133B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103868T ATE443T1 (en) 1978-11-06 1979-10-09 SWITCH ARRANGEMENT WITH SWITCH CONTACTS OPTIONALLY CHANGEABLE AS OPEN OR NO CONTACTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782848105 DE2848105A1 (en) 1978-11-06 1978-11-06 SWITCH ARRANGEMENT WITH CHANGEABLE SWITCH CONTACTS TO OPEN OR OPEN
DE2848105 1978-11-06

Publications (2)

Publication Number Publication Date
EP0011133A1 EP0011133A1 (en) 1980-05-28
EP0011133B1 true EP0011133B1 (en) 1981-11-25

Family

ID=6053995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103868A Expired EP0011133B1 (en) 1978-11-06 1979-10-09 Switch with contacts convertible from normally open to normally closed and vice versa

Country Status (4)

Country Link
US (1) US4276458A (en)
EP (1) EP0011133B1 (en)
AT (1) ATE443T1 (en)
DE (1) DE2848105A1 (en)

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US5145057A (en) * 1989-04-20 1992-09-08 Fuji Electric Corporation, Ltd. Auxiliary contact unit for an electromagnetic switch
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US5532441A (en) * 1994-10-13 1996-07-02 Square D Company Contact block having convertible normally open or normally closed electrical contact
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Also Published As

Publication number Publication date
ATE443T1 (en) 1981-12-15
EP0011133A1 (en) 1980-05-28
DE2848105A1 (en) 1980-05-14
US4276458A (en) 1981-06-30

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