EP0452760A1 - Protective contact plug with a bridge shaped moulding - Google Patents

Protective contact plug with a bridge shaped moulding Download PDF

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Publication number
EP0452760A1
EP0452760A1 EP91105481A EP91105481A EP0452760A1 EP 0452760 A1 EP0452760 A1 EP 0452760A1 EP 91105481 A EP91105481 A EP 91105481A EP 91105481 A EP91105481 A EP 91105481A EP 0452760 A1 EP0452760 A1 EP 0452760A1
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EP
European Patent Office
Prior art keywords
bridge
connecting pins
plug
molded part
pins
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.)
Withdrawn
Application number
EP91105481A
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German (de)
French (fr)
Inventor
Michael Taller
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.)
Taller GmbH
Original Assignee
Taller GmbH
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Filing date
Publication date
Application filed by Taller GmbH filed Critical Taller GmbH
Publication of EP0452760A1 publication Critical patent/EP0452760A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H01R24/30—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/655—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth brace
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members

Definitions

  • the present invention relates to a safety plug according to the preamble of claims 1 and 2.
  • Plugs of this type are known and on the whole have also proven themselves. Basically, such protective contact plugs have the task of handling an electrical device, i.e. the connection of this device when plugging the connector into the power outlet does not become a risk that people may be at risk due to a so-called earth fault.
  • the manufacture and design of the safety plug are subject to strict requirements and regulations. In modern, especially automated mass production, special attention should be paid to ensuring that the conductor connections, i.e. the current conductors and the protective conductors, which are connected to the plug and which establish the electrical connection between the power plant on the one hand and the device on the other hand, provide an adequate safety distance Outside of the safety plug. Finally, there is a risk that individual wires of the conductor or during manufacture during insertion into the holes in the hollow cylindrical connecting pins Bend and tilt the connection sockets so that they protrude outwards from the finished plug. If this is not noticed, it can happen that the possibly protruding individual wires protrude through the surface of the molded injection plug or are so close to the outside that an earth fault occurs during handling.
  • the person who plugs the plug into the socket can suffer health damage that can even lead to death.
  • the finished earthing contact plugs are individually checked for their electrical safety using so-called contour testing devices.
  • the plug is inserted into a test form corresponding to its shape and electrically charged from the outside.
  • connectors with individual wires that protrude outwards or are too close apart can be eliminated.
  • this is associated with significant production costs, i.e. Testing costs.
  • the plug bridge 1 consists of a substantially flat, approximately diamond-shaped (see top view) base plate 20 made of hard-elastic plastic, and a grounding spring 30 which is positively and non-positively clamped on two diametrically opposite connection sides of the diametrically opposed diamond sides of the base plate 20 (see reference number 31 ) and runs across the underside 21 of the base plate 20 (see reference numeral 32).
  • the earthing spring 30 protrudes on both sides over the upper side 22 of the base plate 20, specifically in such a way - compare basic view - that vertically projecting legs 33, 34 result, between which a free space 11 is defined on the upper side 22 of the base plate 20.
  • One leg 33 of the earthing spring 30 forms a flat side web for said free space 11; the second leg 34 of the grounding spring 30 is formed and deformed so that a connection socket 35 is formed for the protective conductor connection.
  • the transverse clasp 32 of the earthing spring 30 has a tab 36 which, when the earthing spring 30 is mounted, engages and is bent through a corresponding slot in the base plate 20 (see supervision).
  • the plug bridge 1 described so far is equipped electrically as follows: On the underside 21 of the base plate 20 protrude at a standardized distance from one another and with a standardized length contact pins 40, 41 with which the plug is ultimately inserted into a mains socket.
  • the contact pins 40, 41 are seated in corresponding holes in the base plate 20 and they are (at the second end) extended to the rear so far that they protrude in the form of hollow cylindrical connecting pins 42, 43 into the interior of the space 11 between the legs 33, 34 of the grounding spring 30 .
  • the current conductors of a consumer line are mechanically connected, in particular clamped or crimped, with these connecting pins 42, 43.
  • the electrical system is ultimately formed by the protective conductor connected to the connecting socket 35 of the earthing spring 30 and the current conductor connected to the connecting pins 42, 43 of the contact pins 40, 41.
  • the pins 42, 43 of the current conductor and the connection socket 35 for the protective conductor are arranged approximately in a triangle to one another, the connecting line of the connection pins 42, 43 being directed perpendicular to the axis of the crossbar 32 of the grounding spring 30.
  • the plug bridge 1 described so far is state of the art.
  • the problems mentioned at the outset can occur, i.e. in the case of individual wires protruding from the side, it can happen that these extend outwards to, possibly even through the sprayed plug head.
  • the plug bridge 1 is designed and / or developed as explained and described below.
  • a separate molded part 50 is provided as an insertion aid, which has an approximately bone-shaped basic shape and a length such that it extends over both connecting pins 42, 43 for the current conductor.
  • These two connecting pins 42, 43 are thus connected to one another in a bridge-like manner, this bridge resting on the end on the connecting pins 42, 43, preferably via undercuts which are complementary to the diameter of the connecting pins 42, 43.
  • a conical through hole 52 is provided coaxially with these undercuts and thus coaxially with the connection pins 42, 43 (and the contact pins 40, 41).
  • the line ends of the current conductor can be inserted and captured safely and without problems.
  • the thickness of the molded part 50 is at least in the region of FIG conical through holes 52 selected so that bent and thus protruding individual wires safely disappear behind the upper edge of the respective through hole 52 or the molded part 50.
  • One solution - shown in the drawing - consists in that a projecting web 60 with an opening 61 is integrally formed between the connecting pins 42, 43 on the upper side 22 of the base plate 20, in particular is molded on during the manufacture of the base plate.
  • the bridge-like molded part 50 has on its underside a pair of opposing locking lugs 51, via which the molded part 50 can be pushed onto the web 60. If the dimensions and assignments between the web 60 with its opening 61 on the one hand and the molded part 50 or its latching lugs 51 on the other hand are appropriately selected or coordinated with one another, when the molded part 50 is plugged on, it rests on the web 60 and the latching lugs 51 clip into the opening on both sides 61 a.
  • the alternative solution - according to claim 2 - is practically a kind of mirror image variant.
  • the molded part has a projecting tab which can be inserted into a fork-shaped receptacle formed on the base plate 20.
  • the tab and the fork-shaped receptacle have complementary locking means so that a non-positive connection between the molded part on the one hand and the actual plug bridge on the other hand is also possible here.

Abstract

A protective contact plug for electrical appliances which can be connected to a mains socket, having a plug bridge for holding and fixing connecting pins for the current conductors of a load line, the conductor ends of the load line being plugged into the connecting pins having been stripped at the ends and being connected to said connecting pins, is characterised in that the plug bridge has a projecting web between the connecting pin with a perforation. A bridge-shaped moulding has a pair of mutually opposite latching tabs centrally, and, in the assembled state, rests on the web such that it can be locked to the latching tabs in the perforation. In this way it is achieved that the individual small wires of the current conductor are held in securely when the current conductor ends are inserted during production. <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf einen Schutzkontaktstecker nach dem Oberbegriff der Patentansprüche 1 und 2.The present invention relates to a safety plug according to the preamble of claims 1 and 2.

Stecker dieser Art sind bekannt und sie haben sich im großen und ganzen auch bewährt. Grundsätzlich haben derartige Schutzkontaktstecker die Aufgabe, die Handhabung eines elektrischen Gerätes, d.h. das Anschließen dieses Gerätes beim Einstecken des Anschlußsteckers in die Netzsteckdose nicht zu einer Gefahr dahingehend werden zu lassen, daß etwa aufgrund eines sogenannten Erdschlußes Personen gefährdet werden.Plugs of this type are known and on the whole have also proven themselves. Basically, such protective contact plugs have the task of handling an electrical device, i.e. the connection of this device when plugging the connector into the power outlet does not become a risk that people may be at risk due to a so-called earth fault.

Die Herstellung und Konzeption der Schutzkontaktstecker unterliegen strengen Auflagen und Vorschriften. Bei der modernen, insbesondere automatisierten Massenherstellung ist besonderes Augenmerk darauf zu richten, daß die Leiteranschlüsse, d.h. die Stromleiter und der Schutzleiter, die mit dem Stecker verbunden sind und die die elektrische Verbindung zwischen dem Elektrizitätswerk einerseits und dem Gerät andererseits herstellen, einen hinreichenden Sicherheitsabstand zur Außenseite des Schutzkontaktsteckers haben. Schließlich besteht die Gefahr, daß sich einzelne Drähte der Leiter während der Herstellung beim Einführung in die Bohrungen der hohlzylindrischen Anschlußstifte beziehungsweise Anschlußbuchsen verbiegen und verkanten, so daß sie vom fertigen Stecker nach außen abstehen. Wird dies nicht bemerkt, so kann es vorkommen, daß die gegebenenfalls abstehenden Einzeldrähte durch die Oberfläche des fertig gespritzten Schutzkontaktsteckers hindurch ragen oder so nahe zur Außenseite hin liegen, daß bei der Handhabung ein Erdschluß entsteht.The manufacture and design of the safety plug are subject to strict requirements and regulations. In modern, especially automated mass production, special attention should be paid to ensuring that the conductor connections, i.e. the current conductors and the protective conductors, which are connected to the plug and which establish the electrical connection between the power plant on the one hand and the device on the other hand, provide an adequate safety distance Outside of the safety plug. Finally, there is a risk that individual wires of the conductor or during manufacture during insertion into the holes in the hollow cylindrical connecting pins Bend and tilt the connection sockets so that they protrude outwards from the finished plug. If this is not noticed, it can happen that the possibly protruding individual wires protrude through the surface of the molded injection plug or are so close to the outside that an earth fault occurs during handling.

Die Person die den Stecker in die Steckdose steckt, kann dadurch einen gesundheitlichen Schaden erleiden, der sogar zum Tod führen kann.The person who plugs the plug into the socket can suffer health damage that can even lead to death.

Aus diesem Grunde werden die fertigen Schutzkontaktstecker jeweils einzeln mittels sogenannter Konturenprüfeinrichtungen auf ihre elektrische Sicherheit geprüft. Der Stecker wird dazu in eine seiner Form entsprechende Prüfform eingelegt und von außen elektrisch beaufschlagt. Auf diese Weise können Stecker mit nach außen durchstehenden beziehungsweise einen zu geringen Abstand aufweisenden Einzeldrähten eliminiert werden. Dies ist jedoch mit erheblichen Produktionskosten, d.h. Prüfkosten, verbunden.For this reason, the finished earthing contact plugs are individually checked for their electrical safety using so-called contour testing devices. For this purpose, the plug is inserted into a test form corresponding to its shape and electrically charged from the outside. In this way, connectors with individual wires that protrude outwards or are too close apart can be eliminated. However, this is associated with significant production costs, i.e. Testing costs.

Die der vorliegenden Erfindung zugrunde liegende Problemstellung ist darin zu sehen, daß etwa seitlich abstehende Einzeldrähtchen eines Leiters sicher "eingefangen" werden. Im Vordergrund steht jedoch die Aufgabe, einen Schutzkontaktstecker der gattungsgemäßen Art von vornherein, d.h. im Vorgriff auf die Einführung der abisolierten Leiterenden in die hohlzylindrischen Anschlußstifte, so auszubilden, daß diese Leiterenden von vornherein so sicher eingeführt werden können, daß keine Einzeldrähtchen abknicken können. Sollte wider Erwarten tatsächlich einmal ein Einzeldrähtchen abstehen, so muß Sorge dafür getragen sein, daß dieses sicher gefaßt wird.The problem underlying the present invention can be seen in the fact that individual wires of a conductor that protrude laterally protrude "safely". In the foreground, however, the task is to design a protective contact plug of the generic type from the outset, ie in anticipation of the introduction of the stripped conductor ends into the hollow cylindrical connecting pins, in such a way that these conductor ends can be inserted from the outset so securely that no individual wires can bend. Should, contrary to expectations, a single wire actually stick out, care must be taken to ensure that it is gripped securely.

Diese Aufgabe wird durch die im kennzeichnenden Teil der Ansprüche 1bzw. 2 spezifizierte Konfiguration gelöst.This object is achieved by the in the characterizing part of claims 1 and. 2 specified configuration solved.

Der wesentliche Vorteil der erfindungsgemäßen Konzeption ist darin zu sehen, daß aufgrund der trichterförmigen Einführhilfe für das Ende des Schutzleiters die Montagezeiten, d.h. die Produktionszyklen für Stecker der gattungsgemäßen Art erheblich reduziert werden. Der wirtschaftliche Erfolg der vorliegenden Erfindung soll somit bereits jetzt ganz besonders hervorgehoben werden.The main advantage of the concept according to the invention can be seen in the fact that due to the funnel-shaped insertion aid for the end of the protective conductor, the assembly times, i.e. the production cycles for connectors of the generic type are significantly reduced. The economic success of the present invention should therefore already be particularly emphasized.

Die Erfindung wird im folgenden anhand der Zeichnung näher erläutert. Diese zeigt
   im Rahmen einer unbemaßten Konstruktionszeichnung in vier Ansichten die Einzelheiten einer kompletten aus Grundplatte und Erdungsfeder bestehenden Steckerbrücke.The invention is explained in more detail below with reference to the drawing. This shows
the details of a complete connector bridge consisting of a base plate and a grounding spring in four views as part of an undimensioned construction drawing.

Die Steckerbrücke 1 besteht aus einer im wesentlichen ebenen, etwa rautenförmigen (vergleiche Aufsicht) Grundplatte 20 aus hartelastischem Kunststoff, und einer Erdungsfeder 30, die form- und kraftschlüssig an zwei sich diametral gegenüberliegenden Verbindungsseiten aneinander anstoßenden Rautenseiten der Grundplatte 20 eingeklemmt ist (vergleiche Bezugszeichen 31) und quer über die Unterseite 21 der Grundplatte 20 verläuft (vergleiche Bezugszeichen 32). Von den genannten Klemmungen 31 ausgehend ragt die Erdungsfeder 30 beidseitig über die Oberseite 22 der Grundplatte 20 vor, und zwar so - vergleiche Grundansicht -, daß sich senkrecht abstehende Schenkel 33, 34 ergeben, zwischen denen ein Freiraum 11 an der Oberseite 22 der Grundplatte 20 definiert ist. Der eine Schenkel 33 der Erdungsfeder 30 bildet einen ebenen Seitensteg für den genannten Freiraum 11; der zweite Schenkel 34 der Erdungsfeder 30 ist so ausgebildet und verformt, daß eine Anschlußbuchse 35 für den Schutzleiteranschluß gebildet ist. Der Vollständigkeit halber sei noch erwähnt, daß die Querspange 32 der Erdungsfeder 30 eine Lasche 36 aufweist, die bei der Montage der Erdungsfeder 30 durch einen korrespondierenden Schlitz in die Grundplatte 20 greift und umgebogen wird (vergleiche Aufsicht).The plug bridge 1 consists of a substantially flat, approximately diamond-shaped (see top view) base plate 20 made of hard-elastic plastic, and a grounding spring 30 which is positively and non-positively clamped on two diametrically opposite connection sides of the diametrically opposed diamond sides of the base plate 20 (see reference number 31 ) and runs across the underside 21 of the base plate 20 (see reference numeral 32). Starting from the mentioned clamps 31, the earthing spring 30 protrudes on both sides over the upper side 22 of the base plate 20, specifically in such a way - compare basic view - that vertically projecting legs 33, 34 result, between which a free space 11 is defined on the upper side 22 of the base plate 20. One leg 33 of the earthing spring 30 forms a flat side web for said free space 11; the second leg 34 of the grounding spring 30 is formed and deformed so that a connection socket 35 is formed for the protective conductor connection. For the sake of completeness, it should also be mentioned that the transverse clasp 32 of the earthing spring 30 has a tab 36 which, when the earthing spring 30 is mounted, engages and is bent through a corresponding slot in the base plate 20 (see supervision).

Die soweit beschriebene Steckerbrücke 1 ist elektrisch wie folgt bestückt:
An der Unterseite 21 der Grundplatte 20 ragen im genormten Abstand zueinander und mit genormter Länge Kontaktstifte 40, 41 nach außen mit denen der Stecker letztlich in eine Netzsteckdose eingeführt wird. Die Kontaktstifte 40, 41 sitzen fest in entsprechenden Bohrungen der Grundplatte 20 und sie sind (am zweiten Ende) rückseitig soweit verlängert, daß sie in Form von hohlzylindrischen Anschlußstiften 42, 43 ins Innere des Freiraums 11 zwischen den Schenkeln 33, 34 der Erdungsfeder 30 ragen. Mit diesen Anschlußstiften 42, 43 werden letztlich die Stromleiter einer Verbraucherleitung mechanisch verbunden, insbesondere angeklemmt beziehungsweise angequetscht.The plug bridge 1 described so far is equipped electrically as follows:
On the underside 21 of the base plate 20 protrude at a standardized distance from one another and with a standardized length contact pins 40, 41 with which the plug is ultimately inserted into a mains socket. The contact pins 40, 41 are seated in corresponding holes in the base plate 20 and they are (at the second end) extended to the rear so far that they protrude in the form of hollow cylindrical connecting pins 42, 43 into the interior of the space 11 between the legs 33, 34 of the grounding spring 30 . Ultimately, the current conductors of a consumer line are mechanically connected, in particular clamped or crimped, with these connecting pins 42, 43.

Das elektrische System wird letztlich durch den mit der Anschlußbuchse 35 der Erdungsfeder 30 verbundenen Schutzleiter und die mit den Anschlußstiften 42, 43 der Kontaktstifte 40, 41 verbundenen Stromleiter gebildet. Die Anschlußstifte 42, 43 der Stromleiter und die Anschlußbuchse 35 für den Schutzleiter sind etwa im Dreieck zueinander angeordnet, wobei die Verbindungslinie der Anschlußstifte 42, 43 senkrecht zur Achse des Querstegs 32 der Erdungsfeder 30 gerichtet ist.The electrical system is ultimately formed by the protective conductor connected to the connecting socket 35 of the earthing spring 30 and the current conductor connected to the connecting pins 42, 43 of the contact pins 40, 41. The pins 42, 43 of the current conductor and the connection socket 35 for the protective conductor are arranged approximately in a triangle to one another, the connecting line of the connection pins 42, 43 being directed perpendicular to the axis of the crossbar 32 of the grounding spring 30.

Die soweit beschriebene Steckerbrücke 1 ist Stand der Technik. Beim Umspritzen dieser Steckerbrücke zwecks Endfertigung des Schutzkontaktsteckers können nun die eingangs genannten Probleme auftreten, d.h. bei seitlich abstehenden Einzeldrähtchen der Leiter kann es vorkommen, daß diese bis nach außen zum, ja gegebenenfalls durch den gespritzten Steckerkopf reichen.The plug bridge 1 described so far is state of the art. When encapsulating this plug bridge for the purpose of finishing the protective contact plug, the problems mentioned at the outset can occur, i.e. in the case of individual wires protruding from the side, it can happen that these extend outwards to, possibly even through the sprayed plug head.

Um dieses Risiko gänzlich auszuschalten, ist die Steckerbrücke 1 wie nachstehend erläutert und beschrieben aus- und/oder weitergebildet.In order to completely eliminate this risk, the plug bridge 1 is designed and / or developed as explained and described below.

Für die Stromleiter ist ein gesondertes Formteil 50 als Einführhilfe vorgesehen, das eine etwa knochenförmige Grundform und eine solche Länge hat, daß es über beide Anschlußstifte 42, 43 für die Stromleiter reicht. Diese beiden Anschlußstifte 42, 43 sind somit brückenartig miteinander verbunden, wobei diese Brücke endseitig auf den Anschlußstiften 42, 43 ruht, und zwar vorzugsweise über zum Durchmesser der Anschlußstifte 42, 43 komplementäre Hinterschneidungen. Koaxial zu diesen Hinterschneidungen und damit koaxial zu den Anschlußstiften 42, 43 (und den Kontakstiften 40, 41) ist jeweils ein konisches Durchgangsloch 52 vorgesehen. Ist das brückenartige formteil 50 letztlich auf die Anschlußstifte 42, 43 der Stromleiter aufgesetzt, so können die Leitungsenden der Stromleiter sicher und problemlos eingeführt und eingefangen werden. Die Dicke des Formteils 50 ist hierbei zumindest im Bereich der konischen Durchgangslöcher 52 so gewählt, daß etwa doch umgebogene und damit abstehende Einzeldrähtchen sicher hinter der Oberkante des jeweiligen Durchgangslochs 52 beziehungsweise des Formteils 50 verschwinden.For the current conductor, a separate molded part 50 is provided as an insertion aid, which has an approximately bone-shaped basic shape and a length such that it extends over both connecting pins 42, 43 for the current conductor. These two connecting pins 42, 43 are thus connected to one another in a bridge-like manner, this bridge resting on the end on the connecting pins 42, 43, preferably via undercuts which are complementary to the diameter of the connecting pins 42, 43. A conical through hole 52 is provided coaxially with these undercuts and thus coaxially with the connection pins 42, 43 (and the contact pins 40, 41). If the bridge-like molded part 50 is ultimately placed on the connecting pins 42, 43 of the current conductor, the line ends of the current conductor can be inserted and captured safely and without problems. The thickness of the molded part 50 is at least in the region of FIG conical through holes 52 selected so that bent and thus protruding individual wires safely disappear behind the upper edge of the respective through hole 52 or the molded part 50.

Zur Fixierung des Formteils 50 für die Anschlußstifte 42, 43 der Stromleiter während der Fertigung werden zwei Alternativlösungen vorgeschlagen.Two alternative solutions are proposed for fixing the molded part 50 for the connection pins 42, 43 of the current conductor during manufacture.

Die eine - in der Zeichnung dargestellte - Lösung besteht darin, daß zwischen den Anschlußstiften 42, 43 an der Oberseite 22 der Grundplatte 20 ein vorstehender Steg 60 mit einem Durchbruch 61 angeformt, insbesondere bei der Fertigung der Grundplatte mit angespritzt ist. Das brückenartige Formteil 50 weist an seiner Unterseite ein Paar sich gegenüberliegender Rastnasen 51 auf, über die das Formteil 50 auf den Steg 60 aufgeschoben werden kann. Werden die Abmessungen und Zuordnungen zwischen dem Steg 60 mit seinem Durchbruch 61 einerseits und dem Formteil 50 beziehungsweise dessen Rastnasen 51 andererseits entsprechend gewählt beziehungsweise aufeinander abgestimmt, so liegt beim Aufstecken des Formteils 50 dieses am Steg 60 auf und die Rastnasen 51 clipsen beidseitig in den Durchbruch 61 ein.One solution - shown in the drawing - consists in that a projecting web 60 with an opening 61 is integrally formed between the connecting pins 42, 43 on the upper side 22 of the base plate 20, in particular is molded on during the manufacture of the base plate. The bridge-like molded part 50 has on its underside a pair of opposing locking lugs 51, via which the molded part 50 can be pushed onto the web 60. If the dimensions and assignments between the web 60 with its opening 61 on the one hand and the molded part 50 or its latching lugs 51 on the other hand are appropriately selected or coordinated with one another, when the molded part 50 is plugged on, it rests on the web 60 and the latching lugs 51 clip into the opening on both sides 61 a.

Die Alternativlösung - gemäß dem Anspruch 2 - ist praktisch eine Art spiegelbildliche Variante. In diesem Falle weist das Formteil eine vorstehende Lasche auf, die in eine an der Grundplatte 20 angeformte gabelförmige Aufnahme eingeführt werden kann. Vorzugsweise weisen die Lasche und die gabelförmige Aufnahme zueinander komplementäre Rastmittel auf, so daß auch hierbei eine kraftschlüssige Verbindung zwischen dem Formteil einerseits und der eigentlichen Steckerbrücke andererseits möglich sind.The alternative solution - according to claim 2 - is practically a kind of mirror image variant. In this case, the molded part has a projecting tab which can be inserted into a fork-shaped receptacle formed on the base plate 20. Preferably, the tab and the fork-shaped receptacle have complementary locking means so that a non-positive connection between the molded part on the one hand and the actual plug bridge on the other hand is also possible here.

Claims (3)

Schutzkontaktstecker für an eine Netzsteckdose anschließbare elektrische Geräte,
mit einer Steckerbrücke zur Aufnahme und Fixierung von Anschlußstiften für die Stromleiter einer Verbraucherleitung und zur bodenseitigen Aufnahme der mit den Anschlußstiften der Stromleiter verbundenen Kontaktstifte,
wobei die Leiterenden der Verbraucherleitung endseitig abisoliert in die Anschlußstifte gesteckt und mit diesen verbunden insbesondere, verquetscht sind,
wobei die Steckerbrücke gemeinsam mit einem Endstück der Verbraucherleitung in einer Spritzform mit Kunststoff umspritzt ist, und
wobei den Anschlußstiften (der Stromleiter) ein gemeinsames brückenartiges Formteil mit je einem Einführtrichter mit einem konischen Durchgangsloch zugeordnet ist,
dadurch gekennzeichnet,
daß die Steckerbrücke zwischen den Anschlußstiften einen vorstehenden Steg mit einem Durchbruch aufweist,
daß das brückenartige Formteil mittig ein Paar sich gegenüberliegender Rastnasen aufweist, und daß der Steg einschließlich Durchbruch und das Formteil einschließlich Rastnasen in Abstimmung mit den Anschlußstiften dimensionsmäßig so aufeinander abgestimmt sind, daß das Formteil am Steg aufliegt und mit den Rastnasen im Durchbruch verriegelbar ist.Earthing contact plug for electrical devices that can be connected to a mains socket,
with a plug bridge for receiving and fixing connecting pins for the current conductors of a consumer line and for receiving the contact pins connected to the connecting pins of the current conductors on the bottom,
the conductor ends of the consumer cable being inserted into the connecting pins, stripped at the ends, and, in particular, being crimped together,
wherein the connector bridge is overmolded together with an end piece of the consumer line in an injection mold with plastic, and
the connecting pins (the current conductor) being assigned a common bridge-like molded part, each with an insertion funnel with a conical through hole,
characterized,
that the plug bridge between the connection pins has a projecting web with a breakthrough,
that the bridge-like molded part has a pair of opposing locking lugs in the center, and that the web including the opening and the molded part including locking lugs are dimensionally coordinated with one another in coordination with the connecting pins so that the molded part rests on the web and can be locked in the opening with the locking lugs. Schutzkontaktstecker für an ein Netzsteckdose anschließbare Geräte,
mit einer Steckerbrücke zur Aufnahme und Fixierung von Anschlußstiften für die Stromleiter einer Verbraucherleitung und zur bodenseitigen Aufnahme der mit den Anschlußstiften der Stromleiter verbundenen Kontaktstifte,
wobei die Leiterenden der Verbraucherleitung endseitig abisoliert in die Anschlußstifte gesteckt und mit diesen verbunden, insbesondere verquetscht sind,
wobei die Steckerbrücke gemeinsam mit einem Endstück der Verbraucherleitung in einer Spritzform mit Kunststoff umspritzt ist, und
wobei den Anschlußstiften (der Stromleiter) ein gemeinsames brückenartiges Formteil mit je einem Einführtrichter mit einem konischen Durchgangsloch zugeordnet ist,
dadurch gekennzeichnet,
daß die Steckerbrücke zwischen den Anschlußstiften einen vorstehenden Steg mit einer gabelförmigen Aufnahme aufweist,
daß das brückenartige Formteil mittig eine vorstehende Lasche aufweist, und
daß der Steg einschließlich der gabelförmigen Aufnahme und das Formteil einschließlich der vorstehenden Lasche in Abstimmung mit den Anschlußstiften dimensionsmäßig so aufeinander agestimmt sind, daß das Formteil am der gabelförmigen Aufnahme des Stegs aufliegt.Earthing contact plug for devices that can be connected to a mains socket,
with a plug bridge for receiving and fixing connecting pins for the current conductors of a consumer line and for receiving the contact pins connected to the connecting pins of the current conductors on the bottom,
the conductor ends of the consumer line being stripped and plugged into the connecting pins and connected to them, in particular crimped,
wherein the connector bridge is overmolded together with an end piece of the consumer line in an injection mold with plastic, and
the connecting pins (the current conductor) being assigned a common bridge-like molded part, each with an insertion funnel with a conical through hole,
characterized,
that the plug bridge between the connection pins has a projecting web with a fork-shaped receptacle,
that the bridge-like molding has a projecting tab in the middle, and
that the web including the fork-shaped receptacle and the molded part including the projecting tab are dimensionally matched to one another in coordination with the connecting pins so that the molded part rests on the fork-shaped receptacle of the web. Schutzkontaktstecker nach Anspruch 2,
dadurch gekennzeichnet,
daß die gabelförmige Aufnahme und die Lasche zueinander komplementäre Rastmittel aufweisen.Earthing contact plug according to claim 2,
characterized,
that the fork-shaped receptacle and the tab have complementary locking means.
EP91105481A 1990-04-20 1991-04-06 Protective contact plug with a bridge shaped moulding Withdrawn EP0452760A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904012581 DE4012581C2 (en) 1990-04-20 1990-04-20 Earthing contact plug with a bridge-like molded part
DE4012581 1990-04-20

Publications (1)

Publication Number Publication Date
EP0452760A1 true EP0452760A1 (en) 1991-10-23

Family

ID=6404715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105481A Withdrawn EP0452760A1 (en) 1990-04-20 1991-04-06 Protective contact plug with a bridge shaped moulding

Country Status (2)

Country Link
EP (1) EP0452760A1 (en)
DE (1) DE4012581C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773606A2 (en) * 1995-11-10 1997-05-14 Taller GmbH Protective contact plug with insertion aid at the connection socket for the earth conductor
CN101515687B (en) * 2008-02-19 2010-12-29 建通精密工业股份有限公司 Three-electrode power plug inner frame with grounding elastic sheet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222651C2 (en) * 1992-07-10 1994-11-17 Taller Gmbh Jumper for an electrical contact plug
DE19929539A1 (en) * 1999-06-28 2001-01-18 Kazmierczak Gmbh Electrical shockproof plug bridge for safe handling has phase sleeves for phase conductors, an earthing sleeve with an earthing spring for an earthing conductor and leading-in sockets for phase and earthing conductors.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332034A2 (en) * 1988-03-09 1989-09-13 Taller GmbH Bridging means for safety plug with hollow cylindrical pins for the current and earth leads
DE3839011A1 (en) * 1988-11-18 1990-05-23 Taller Gmbh Plug link for an electrical equipment plug having at least one phase-conductor pin (live-conductor pin) and one neutral-conductor pin

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807716C3 (en) * 1988-03-09 1997-01-16 Taller Gmbh Plug bridge for a protective contact plug with hollow cylindrical connection pins for the current conductor and the protective conductor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332034A2 (en) * 1988-03-09 1989-09-13 Taller GmbH Bridging means for safety plug with hollow cylindrical pins for the current and earth leads
DE3839011A1 (en) * 1988-11-18 1990-05-23 Taller Gmbh Plug link for an electrical equipment plug having at least one phase-conductor pin (live-conductor pin) and one neutral-conductor pin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773606A2 (en) * 1995-11-10 1997-05-14 Taller GmbH Protective contact plug with insertion aid at the connection socket for the earth conductor
EP0773606A3 (en) * 1995-11-10 1998-05-27 Taller GmbH Protective contact plug with insertion aid at the connection socket for the earth conductor
CN101515687B (en) * 2008-02-19 2010-12-29 建通精密工业股份有限公司 Three-electrode power plug inner frame with grounding elastic sheet

Also Published As

Publication number Publication date
DE4012581C2 (en) 1994-08-25
DE4012581A1 (en) 1991-10-24

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