EP0332034A2 - Bridging means for safety plug with hollow cylindrical pins for the current and earth leads - Google Patents

Bridging means for safety plug with hollow cylindrical pins for the current and earth leads Download PDF

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Publication number
EP0332034A2
EP0332034A2 EP89103548A EP89103548A EP0332034A2 EP 0332034 A2 EP0332034 A2 EP 0332034A2 EP 89103548 A EP89103548 A EP 89103548A EP 89103548 A EP89103548 A EP 89103548A EP 0332034 A2 EP0332034 A2 EP 0332034A2
Authority
EP
European Patent Office
Prior art keywords
molded part
pins
bridge
safety plug
conductor
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.)
Granted
Application number
EP89103548A
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German (de)
French (fr)
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EP0332034A3 (en
EP0332034B2 (en
EP0332034B1 (en
Inventor
Michael Taller
Thomas Waible
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Taller GmbH
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Taller GmbH
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Priority claimed from DE3807716A external-priority patent/DE3807716C3/en
Application filed by Taller GmbH filed Critical Taller GmbH
Publication of EP0332034A2 publication Critical patent/EP0332034A2/en
Publication of EP0332034A3 publication Critical patent/EP0332034A3/en
Application granted granted Critical
Publication of EP0332034B1 publication Critical patent/EP0332034B1/en
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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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a safety plug according to the preamble of patent claim 1.
  • 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. H. 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 person who puts the plug in 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 placed in a test form that corresponds 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. H. Associated testing costs.
  • Protective contact plugs with two current conductors and a protective conductor are designed so-called protective caps, which are placed on the plug bridge before the protective contact plug is overmolded, in order to secure the space around the connection points of the current conductors and the protective conductor to the outside.
  • This protective cap is designed according to the contour of the plug bridge; it is plugged over the connector bridge and stands flush against the inner floor surface. The protective cap is non-positively latched onto the connector bridge before it is overmolded with plastic using two locking lugs that project laterally over the connector bridge.
  • This protective cap is a relatively complicated molded part, ie the injection mold is expensive.
  • care is taken only afterwards to ensure that conductor ends that are not correctly inserted do not cause any damage.
  • a very important advantage of the concept according to the invention is that the assembly times, ie the production cycles for plug bridges of the type mentioned, could be considerably reduced due to the funnel-shaped insertion aid for the conductor ends.
  • the economic success of the present invention should therefore already be particularly emphasized.
  • the U-shaped molded part 10 made of hard-elastic plastic.
  • the two legs 11, 12 of the U delimit a free space 13 and are connected to one another via a connecting web 14 (transverse web of the U).
  • the connecting web 14 protrudes laterally on both sides of the U and has an approximately trapezoidal outer contour, the shorter diagonal of which is dimensioned in accordance with the standardized spacing of the contact pins or contact sockets of the mains socket.
  • the plug bridge 1 described so far with regard to the basic mechanical form is electrically equipped as follows: on the outside of the connecting web 14, at the aforementioned standardized distance from one another and with a standardized length, contact pins 15 project outwards (with which the plug is ultimately inserted into a mains socket).
  • the contact pins 15 are firmly seated in corresponding bores of the connecting web 14 and they are (at the second end) extended to the rear so far that they protrude into the interior of the U-shaped molded part 10 in the form of hollow cylindrical connecting pins 16. With these pins 16 are ultimately the conductor ends of a consumer line (see FIGS. 2-17) mechanically connected, in particular crimped or crimped.
  • the electrical system is completed by a protective conductor which is connected as part of the consumer line 17 to a third pin 19 on the inside of the connecting web 14.
  • the connection pins 16 of the current conductor and the connection pin 19 of the protective conductor are arranged approximately in a triangle to one another.
  • the pin 19 of the protective conductor is connected to arranged on the outer sides of the legs 11, 12 of the U-shaped molded part 10 contact springs 20 which, when the protective contact plug is plugged into a mains socket, connects the latter to a coupling located in the device to be connected, so that the protective conductor is connected Consumer line 17 and thus the device itself have a ground fault.
  • 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 now occur. H. If the individual wires of the current conductor and the protective conductor protrude to the side, it can happen that they extend outwards through the molded plug head.
  • the plug bridge 1 is designed and / or developed as explained and described below.
  • a molded part 21 directed toward this connecting pin 19 is injection-molded as an integral part of the injection mold for the U-shaped 10.
  • This molded part 21 extends beyond the connecting pin 19 and is via a support leg 22 on the connecting web 14 (transverse web of the U or floor of the free space) supported.
  • the connecting pin 19 for the protective conductor is thus completely bridged, the part of the molded part 21 protruding from the leg 11 needing to be supported on the free front edge, ie the free end face, if appropriate only on one or both sides.
  • An essential partial feature of the molded part 21 is a conical through hole 23, namely coaxially with the associated pin 19.
  • the smaller diameter of this through hole 23 lies opposite the end face of the pin 19, so that it has a funnel-shaped extension towards the free side of the molded part 21.
  • the stripped cable end of the protective conductor can be inserted easily and safely via this funnel-shaped extension, and without a single wire of the protective conductor being bent.
  • the material thickness of the molded part 21 is selected at least around the through hole 23 such that - depending on the length of the stripping - this single wire is securely behind the upper edge of the through hole 23 disappears.
  • the protective conductor can thus be securely inserted and fixed with the aid of the molded part 21 or the conical through hole 23, for example by squeezing (crimping).
  • an analog molded part 30 is provided as an insertion aid for the current conductors.
  • This further molded part 30 has an approximately bone-shaped basic shape and such a length that it extends over both connecting pins 16 for the current conductors.
  • These two connecting pins 16 are thus connected to one another in a bridge-like manner parallel to the connecting web 14 of the U, this bridge at the end rests on the connecting pins 16, preferably via undercuts 31 which are complementary to the diameter of the connecting pins 16.
  • a conical through hole 32 is provided in each case.
  • the line ends of the current conductors can also be inserted safely and without problems, as with the protective conductor.
  • the thickness of the molded part 30 is selected at least in the area of the through holes 32 such that bent and thus protruding individual wires safely disappear behind the upper edge of the respective through hole 32.
  • a bracket 33 can optionally be molded onto the connecting web 14 of the U-shaped molded part 10, which is designed such that it carries this molded part 30 placed on the connecting pins 16 from below.
  • the molded part 21 for the protective conductor is formed at the transition between the part projecting beyond the connecting pin 19 and the supporting foot 22, that a locking lug 40 is formed, on which the bridge-like molded part 30 can snap into place.
  • This concept can be further optimized in such a way that the support leg 22, the bracket 33, and the central part of the bridge-like molded part 30 over shoulders and one or the detent 40 on the support leg 22 such Complementary to each other can be formed that the bridge-like molded part 30 is clamped positively and non-positively in the central region.
  • the molded part 21 for the connecting pin 16 of the protective conductor is only supported laterally via support feet 22 - this corresponds to the drawing - the bridge-like molded part 30 is on the side facing the leg 12 in the center of the console 33 and on the other side via a spaced apart Stand on pair of support lugs 22.
  • the bridge-like molded part 30 engages under the other molded part 21, which is molded onto the plug bridge.
  • a corresponding bevel 34 is provided on the bracket 33 (see section A - B).
  • the plug bridge 1 with the molded part 21 for the connecting pin 16 of the protective conductor and with the molded part 30 for the connecting pins 16 of the current conductor forms a form-fitting and non-positively joined assembly unit. This is - after the stripped conductor ends of the current conductor and the protective conductor are inserted into the hollow cylindrical connecting pins - overmoulded with soft elastic plastic, so that a finished protective contact plug can ultimately be removed from the injection mold. This consists - as shown in Fig. 2 - of a plug head, behind which the elements mentioned are hidden and which can be plugged into a mains socket via the contact pins 15. The device connected to the consumer line 17 is thus connected to the general power network.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Electric Cable Installation (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

In a safety plug for electrical apparatuses which can be connected to a mains socket, having an essentially U-shaped bridging means for holding and fixing hollow-cylindrical connecting pins for the current and earth leads of a load cable in the open region of the U, and for holding the contact pins, which are connected electrically to the current lead connecting pin, on the base of the U, a moulded part (21, 30) having a conical perforating hole (23, 32) is placed in front of at least one of the connecting pins (16, 19), the smaller hole diameter resting on the end face of the connecting pins (16, 19) and the material thickness of the moulded part (21, 30) being selected, at least in the region of the perforating holes (23, 32), such that on insertion of the stripped lead ends, small individual wires which are somewhat bent over come to rest inside the corresponding perforating hole (23, 32). In consequence, the production of the plugs can be simplified and the electrical safety can be improved at the same time. <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf einen Schutz­kontaktstecker nach dem Oberbegriff des Patentanspruchs 1.The present invention relates to a safety plug according to the preamble of patent claim 1.

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 Geräts beim Einstecken des Anschlußsteckers in die Netz­steckdose nicht zu einer Gefahr dahingehend werden zu lassen, daß etwa auf Grund 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. H. 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 der Steckerbrücke verbunden sind und 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 Einführen in die Bohrungen der hohl­zylindrischen Anschlußstifte verbiegen und verkanten, so daß sie von der fertigen Steckerbrücke nach außen ab­stehen. Wird dies nicht bemerkt, so kann es vorkommen, daß beim abschließenden Umspritzen der Steckerbrücke die abstehenden Einzeldrähte durch die Oberfläche des Schutz­kontaktsteckers hindurchragen 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 the fact that the conductor connections, i.e. the current conductors and the protective conductors, which are connected to the connector bridge and establish the electrical connection between the power plant on the one hand and the device on the other hand, have a sufficient safety distance from the outside of the safety plug. Finally, there is the risk that individual wires of the conductors bend and tilt during manufacture when they are inserted into the bores of the hollow cylindrical connecting pins, so that they protrude outwards from the finished connector bridge. If this is not noticed, it can happen that when the connector bridge is overmolded, the protruding individual wires protrude through the surface of the safety 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 puts the plug in 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 Stek­ker wird dazu in eine seiner Form entsprechende Prüfform eingelegt und von außen elektrisch beaufschlagt. Auf die­se Weise können Stecker mit nach außen durchstehenden bzw. 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 placed in a test form that corresponds 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. H. Associated testing costs.

Um die genannten Gefahren von vornherein zu reduzieren, wurden in Verbindung mit der Herstellung normaler Schutz­kontaktstecker, d. h. Schutzkontaktstecker mit zwei Strom­leitern und einem Schutzleiter sogenannte Schutzkappen konzipiert, die vor dem Umspritzen des Schutzkontaktstek­kers auf die Steckerbrücke gesteckt werden, um den Raum um die Verbindungsstellen der Stromleiter und des Schutz­leiters nach außen abzusichern. Diese Schutzkappe ist der Kontur der Steckerbrücke entsprechend ausgebildet; sie wird über die Steckerbrücke gesteckt und steht bündig an der inneren Bodenfläche auf. Über zwei seitlich über die Steckerbrücke überkragende Rastnasen wird die Schutzkappe vor dem Umspritzen mit Kunststoff kraftschlüssig an der Steckerbrücke eingeklinkt.In order to reduce the dangers mentioned from the outset, in connection with the manufacture of normal earthing contact plugs, i. H. Protective contact plugs with two current conductors and a protective conductor are designed so-called protective caps, which are placed on the plug bridge before the protective contact plug is overmolded, in order to secure the space around the connection points of the current conductors and the protective conductor to the outside. This protective cap is designed according to the contour of the plug bridge; it is plugged over the connector bridge and stands flush against the inner floor surface. The protective cap is non-positively latched onto the connector bridge before it is overmolded with plastic using two locking lugs that project laterally over the connector bridge.

Bei dieser Schutzkappe handelt es sich um ein relativ komp­liziertes Formteil, d. h. die Spritzform ist teuer. Hinzu kommt, daß mit den bekannten Schutzkappen quasi nur nach­träglich Sorge dafür getragen ist, daß nicht einwandfrei eingeführte Leiterenden keinen Schaden verursachen.This protective cap is a relatively complicated molded part, ie the injection mold is expensive. In addition comes that with the known protective caps, care is taken only afterwards to ensure that conductor ends that are not correctly inserted do not cause any damage.

Die der vorliegenden Erfindung zugrunde liegende Problem­stellung ist zwar ebenfalls 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 abknik­ken können. Sollte wider Erwarten tatsächlich einmal ein Einzeldrähtchen abstehen, so muß selbstverständlich Sorge dafür getragen sein, daß dieses sicher gefaßt ist.The problem on which the present invention is based is also to be seen in the fact that individual wires of a conductor which protrude to the side are reliably "caught". In the foreground, however, is the task of a protective contact plug of the generic type from the outset, i. H. in anticipation of the introduction of the stripped conductor ends into the hollow cylindrical connecting pins, so that these conductor ends can be inserted from the outset so securely that no individual wires can break off. Should, contrary to expectations, a single wire actually stick out, care must of course be taken to ensure that it is securely held.

Diese Aufgabe wird durch das im kennzeichnenden Teil des Patentanspruchs 1 spezifizierte Formteil gelöst, wobei er­gänzend darauf hingewiesen wird, daß auf Grund des allge­meinen Handling eines Steckers der gattungsgemäßen Art es wegen der notwendigen Arbeitsschritte bei der Verbindung zwischen den Anschlußstiften und den Leiterenden nicht mög­lich ist, gleichzeitig für beide Stromleiter und den Schutz­leiter eine gemeinsame Einführhilfe zu konzipieren. Und es soll auch angemerkt werden, daß vorhandene Einrichtungen, Maschinen und Werkzeuge durch Modifikationen der erfindungs­gemäßen Art nur so wenig wie irgend möglich beeinflußt wer­den sollen.This object is achieved by the molded part specified in the characterizing part of patent claim 1, it being additionally pointed out that, because of the general handling of a plug of the generic type, it is not possible because of the necessary work steps in the connection between the connecting pins and the conductor ends, to design a common insertion aid for both current conductors and the protective conductor at the same time. And it should also be noted that existing facilities, machines and tools should be influenced as little as possible by modifications of the type according to the invention.

Ein ganz wesentlicher Vorteil der erfindungsgemäßen Konzep­tion ist darin zu sehen, daß auf Grund der trichterförmigen Einführhilfe für die Leiterenden die Montagezeiten, d. h. die Produktionszyklen für Steckerbrücken der genannten Art erheblich reduziert werden konnten. Der wirtschaftliche Erfolg der vorliegenden Erfindung soll somit bereits jetzt ganz besonders hervorgehoben werden.A very important advantage of the concept according to the invention is that the assembly times, ie the production cycles for plug bridges of the type mentioned, could be considerably reduced due to the funnel-shaped insertion aid for the conductor ends. The economic success of the present invention should therefore already be particularly emphasized.

Weiterbildungen des Formteils im Hinblick auf seine Reali­sierung für die Anschlußstifte der Stromleiter einerseits, und des Schutzleiters andererseits, sowie für eine kombi­natorische Lösung für sämtliche Leiter sind Gegenstand der Unteransprüche.Developments of the molded part with regard to its implementation for the pins of the current conductor on the one hand, and the protective conductor on the other hand, and for a combinatorial solution for all conductors are the subject of the dependent claims.

Die Erfindung wird im Folgenden anhand der Zeichnung näher erläutert. Diese zeigt in

  • Fig. 1 im Rahmen einer Konstruktionszeichnung in drei, zum Teilgeschnittenen Ansichten die Einzelheiten einer kompletten Steckerbrücke;
  • Fig. 2 einen kompletten, fertig gespritzten Schutzkontakt­stecker.
The invention is explained in more detail below with reference to the drawing. This shows in
  • Figure 1 in the context of a construction drawing in three, partially sectional views, the details of a complete connector bridge.
  • Fig. 2 shows a complete, molded injection plug.

Die Steckerbrücke 1 nach Fig. 1 besteht im wesentlichen aus einem U-förmigen Formteil 10 aus hartelastischem Kunststoff. Die beiden Schenkel 11, 12 des U begrenzen einen Frei­raum 13 und sind über einen Verbindungssteg 14 (Quersteg des U ) miteinander verbunden.1 essentially consists of a U-shaped molded part 10 made of hard-elastic plastic. The two legs 11, 12 of the U delimit a free space 13 and are connected to one another via a connecting web 14 (transverse web of the U).

Der Verbindungssteg 14 kragt zu beiden Seiten des U seit­lich aus und hat eine etwa trapezförmige Außenkontur, deren kürzere Diagonale dem genormten Abstand der Kontaktstifte bzw. Kontaktbuchsen der Netzsteckdose entsprechend dimensio­niert ist.The connecting web 14 protrudes laterally on both sides of the U and has an approximately trapezoidal outer contour, the shorter diagonal of which is dimensioned in accordance with the standardized spacing of the contact pins or contact sockets of the mains socket.

Die soweit bezüglich der mechanischen Grundform beschrie­bene Steckerbrücke 1 ist elektrisch wie folgt bestückt: An der Außenseite des Verbindungsstegs 14 ragen im er­wähnten genormten Abstand zueinander und mit genormter Länge Kontaktstifte 15 nach außen (mit denen der Stecker letztlich in eine Netzsteckdose eingeführt wird). Die Kon­taktstifte 15 sitzen fest in entsprechenden Bohrungen des Verbindungsstegs 14 und sie sind (am zweiten Ende) rück­seitig so weit verlängert, daß sie in Form von hohlzylindri­schen Anschlußstiften 16 ins Innere des U-förmigen Form­teils 10 ragen. Mit diesen Anschlußstiften 16 werden letztlich die Leiterenden einer Verbraucherleitung (vlg. Fig. 2 - 17) mechanisch verbunden, insbesondere ange­crimpt oder angequetscht.The plug bridge 1 described so far with regard to the basic mechanical form is electrically equipped as follows: on the outside of the connecting web 14, at the aforementioned standardized distance from one another and with a standardized length, contact pins 15 project outwards (with which the plug is ultimately inserted into a mains socket). The contact pins 15 are firmly seated in corresponding bores of the connecting web 14 and they are (at the second end) extended to the rear so far that they protrude into the interior of the U-shaped molded part 10 in the form of hollow cylindrical connecting pins 16. With these pins 16 are ultimately the conductor ends of a consumer line (see FIGS. 2-17) mechanically connected, in particular crimped or crimped.

Das elektrische System wird durch einen Schutzleiter ver­vollständigt, der als Teil der Verbraucherleitung 17 mit einem dritten Anschlußstift 19 an der Innenseite des Verbindungsstegs 14 verbunden ist. Die Anschlußstifte 16 der Stromleiter und der Anschlußstift 19 des Schutz­leiters sind etwa im Dreieck zueinander angeordnet. Der Anschlußstift 19 des Schutzleiters ist mit an den Außen­seiten der Schenkel 11, 12 des U-förmigen Formteils 10 angeordneten Kontaktfedern 20 verbunden, die beim Ein­stecken des Schutzkontaktsteckers in eine Netzsteckdose diese mit einer sich im anzuschließenden Gerät befindli­chen Kupplung verbindet, so daß der Schutzleiter der Ver­braucherleitung 17 und damit das Gerät selbst Erdschluß haben.The electrical system is completed by a protective conductor which is connected as part of the consumer line 17 to a third pin 19 on the inside of the connecting web 14. The connection pins 16 of the current conductor and the connection pin 19 of the protective conductor are arranged approximately in a triangle to one another. The pin 19 of the protective conductor is connected to arranged on the outer sides of the legs 11, 12 of the U-shaped molded part 10 contact springs 20 which, when the protective contact plug is plugged into a mains socket, connects the latter to a coupling located in the device to be connected, so that the protective conductor is connected Consumer line 17 and thus the device itself have a ground fault.

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 Stromleiter und des Schutz­leiters kann es vorkommen, daß diese bis nach außen 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 now occur. H. If the individual wires of the current conductor and the protective conductor protrude to the side, it can happen that they extend outwards through the molded plug head.

Um dieses Risiko gänzlich auszuschalten wird 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.

An dem dem Anschlußstift 19 für den Schutzleiter benach­barten Schenkel 11 des U ist - als integrierter Bestand­teil der Spritzform für das U-förmige 10 - ein zu diesem Anschlußstift 19 hin gerichtetes Formteil 21 angespritzt. Dieses Formteil 21 reicht über den Anschluß­stift 19 hinaus und ist über einen Stützfuß 22 am Ver­bindungssteg 14 (Quersteg des U bzw. Boden des Freiraums) abgestützt. Der Anschlußstift 19 für den Schutzleiter ist somit vollständig überbrückt, wobei der vom Schenkel 11 abstehende Teil des Formteils 21 an der freien Vor­derkante, d. h. der freien Stirnseite, ggf. auch nur an einer oder an beiden Seiten abgestützt zu sein braucht.On the leg 11 of the U adjacent to the connecting pin 19 for the protective conductor, a molded part 21 directed toward this connecting pin 19 is injection-molded as an integral part of the injection mold for the U-shaped 10. This molded part 21 extends beyond the connecting pin 19 and is via a support leg 22 on the connecting web 14 (transverse web of the U or floor of the free space) supported. The connecting pin 19 for the protective conductor is thus completely bridged, the part of the molded part 21 protruding from the leg 11 needing to be supported on the free front edge, ie the free end face, if appropriate only on one or both sides.

Ein wesentliches Teilmerkmal des Formteils 21 ist ein konisches Durchgangsloch 23 und zwar koaxial zum zuge­hörigen Anschlußstift 19. Der kleinere Durchmesser die­ses Durchgangslochs 23 liegt der Stirnseite des An­schlußstiftes 19 gegenüber, so daß dieser zur freien Seite des Formteils 21 hin eine trichterförmige Erwei­terung aufweist. Über diese trichterförmige Erweiterung läßt sich das abisolierte Leitungsende des Schutzleiters leicht und sicher, und ohne daß ein Einzeldrähtchen des Schutzleiters umgeknickt wird, einführen.An essential partial feature of the molded part 21 is a conical through hole 23, namely coaxially with the associated pin 19. The smaller diameter of this through hole 23 lies opposite the end face of the pin 19, so that it has a funnel-shaped extension towards the free side of the molded part 21. The stripped cable end of the protective conductor can be inserted easily and safely via this funnel-shaped extension, and without a single wire of the protective conductor being bent.

Für den Fall, daß wider Erwarten doch einmal ein Einzel­drähtchen des Schutzleiters abknicken und abstehen soll­te, ist die Materialstärke des Formteils 21 mindestens um Das Durchgangsloch 23 herum so gewählt, daß - der Länge der Abisolierung entsprechend - dieses Einzeldräht­chen sicher hinter der Oberkante des Durchgangslochs 23 verschwindet.In the event that, contrary to expectations, a single wire of the protective conductor should bend and protrude, the material thickness of the molded part 21 is selected at least around the through hole 23 such that - depending on the length of the stripping - this single wire is securely behind the upper edge of the through hole 23 disappears.

Der Schutzleiter läßt sich somit sicher mit Hilfe des Formteils 21 bzw. des konischen Durchgangslochs 23 einführen und fixieren, beispielsweise durch Quetschen (Crimpen).The protective conductor can thus be securely inserted and fixed with the aid of the molded part 21 or the conical through hole 23, for example by squeezing (crimping).

Für die Stromleiter ist in Weiterbildung ein analoges Formteil 30 als Einführhilfe vorgesehen. Dieses weitere Formteil 30 hat eine etwa knochenförmige Grundform und eine solche Länge, daß es über beide Anschlußstifte 16 für die Stromleiter reicht. Diese beiden Anschlußstifte 16 sind somit parallel zum Verbindungssteg 14 des U brückenartig miteinander verbunden, wobei diese Brücke endseitig auf den Anschlußstiften 16 ruht, und zwar vorzugsweise über zum Durchmesser der Anschlußstifte 16 komplementäre Hinterschneidungen 31. Koaxial zu diesen Hinterschneidungen 31 und damit koaxial zu den Anschlußststiften 16 (und den Kontaktstiften 15) ist wiederum jeweils ein konisches Durchgangsloch 32 vor­gesehen. Ist das brückenartige Formteil 30 letztlich auf die Anschlußstifte 16 der Stromleiter aufgesetzt, so können - wie beim Schutzleiter - auch die Leitungs­enden der Stromleiter sicher und problemlos eingeführt werden. Die Dicke des Formteils 30 ist hierbei zu­mindest im Bereich der Durchgangslöcher 32 so gewählt, daß etwa doch umgebogene und damit abstehende Einzel­drähtchen sicher hinter der Oberkante des jeweiligen Durchgangslochs 32 verschwinden.In a further development, an analog molded part 30 is provided as an insertion aid for the current conductors. This further molded part 30 has an approximately bone-shaped basic shape and such a length that it extends over both connecting pins 16 for the current conductors. These two connecting pins 16 are thus connected to one another in a bridge-like manner parallel to the connecting web 14 of the U, this bridge at the end rests on the connecting pins 16, preferably via undercuts 31 which are complementary to the diameter of the connecting pins 16. Coaxial to these undercuts 31 and thus coaxial to the connecting pins 16 (and the contact pins 15), in turn, a conical through hole 32 is provided in each case. If the bridge-like molded part 30 is ultimately placed on the connecting pins 16 of the current conductors, the line ends of the current conductors can also be inserted safely and without problems, as with the protective conductor. The thickness of the molded part 30 is selected at least in the area of the through holes 32 such that bent and thus protruding individual wires safely disappear behind the upper edge of the respective through hole 32.

Zur Stabilisierung des Formteils 30 für die Anschluß­stifte 16 der Stromleiter kann ggf. am Verbindungssteg 14 des U-förmigen Formteils 10 eine Konsole 33 ange­spritzt sein, die so ausgebildet ist, daß sie dieses auf die Anschlußstifte 16 aufgesetzte Formteil 30 von un­ten her trägt.To stabilize the molded part 30 for the connecting pins 16 of the current conductors, a bracket 33 can optionally be molded onto the connecting web 14 of the U-shaped molded part 10, which is designed such that it carries this molded part 30 placed on the connecting pins 16 from below.

In besonderer und bevorzugter Weiterbildung und Ausge­staltung der vorbeschriebenen beiden Typen von Formtei­len 21 bzw. 30 für die Anschlußstifte der Stromlei­ter und des Schutzleiters ist vorgesehen, das Formteil 21 für den Schutzleiter am Übergang zwischen dem den Anschlußstift 19 überkragenden Teil und dem Stützfuß 22 so auszubilden, daß eine Rastnase 40 entsteht, an der das brückenartige Formteil 30 einrasten kann.In a special and preferred development and configuration of the two types of molded parts 21 and 30 for the connecting pins of the current conductors and the protective conductor described above, it is provided that the molded part 21 for the protective conductor is formed at the transition between the part projecting beyond the connecting pin 19 and the supporting foot 22, that a locking lug 40 is formed, on which the bridge-like molded part 30 can snap into place.

Diese Konzeption läßt sich weiter dahingehend optimie­ren, daß der Stützfuß 22, die Konsole 33, und der Mit­telteil des brückenartigen Formteil 30 über Schultern und eine bzw. die Rastnase 40 am Stützfuß 22 derart komplementär zueinander ausgebildet werden können, daß das brückenartige Formteil 30 im Mittenbereich form- und kraftschlüssig eingespannt ist. (Hierzu wird expli­zit auf die zeichnerische Darstellung im Schnitt A - B verwiesen). Ist das Formteil 21 für den Anschlußstift 16 des Schutzleiters nur seitlich über Stützfüße 22 abgestützt - dies entspricht der zeichnerischen Darstel­lung - so ist das brückenartige Formteil 30 auf der dem Schenkel 12 zugewandten Seite mittig von der Kon­sole 33 und auf der anderen Seite über ein voneinander beabstandetes Paar von Stütznasen 22 aufgeständert. Innerhalb dieses Breitenbereichs rastet das brückenarti­ge Formteil 30 unter dem anderen - an die Steckerbrük­ke angespritzten Formteil 21 ein. Zum besseren Einfü­gen bzw. Einführen des brückenartigen Formteils 30 ist an der Konsole 33 eine entsprechende Schräge 34 vor­gesehen (vgl. Schnitt A - B).This concept can be further optimized in such a way that the support leg 22, the bracket 33, and the central part of the bridge-like molded part 30 over shoulders and one or the detent 40 on the support leg 22 such Complementary to each other can be formed that the bridge-like molded part 30 is clamped positively and non-positively in the central region. (Please refer explicitly to the graphic representation in section A - B). If the molded part 21 for the connecting pin 16 of the protective conductor is only supported laterally via support feet 22 - this corresponds to the drawing - the bridge-like molded part 30 is on the side facing the leg 12 in the center of the console 33 and on the other side via a spaced apart Stand on pair of support lugs 22. Within this width range, the bridge-like molded part 30 engages under the other molded part 21, which is molded onto the plug bridge. For a better insertion or insertion of the bridge-like molded part 30, a corresponding bevel 34 is provided on the bracket 33 (see section A - B).

Anhand von Fig. 2 soll das Endprodukt "Schutzkontakt­stecker" gezeigt werden. (Bezugszeichen 3).2, the end product "protective contact plug" is to be shown. (Reference number 3).

Die Steckerbrücke 1 mit dem Formteil 21 für den An­schlußstift 16 des Schutzleiters und mit dem Formteil 30 für die Anschlußstifte 16 der Stromleiter bildet eine form- und kraftschlüssig zusammen gefügte Montage­einheit. Diese wird - nachdem die abisolierten Leiter­enden der Stromleiter und des Schutzleiters in die hohl­zylindrischen Anschlußstifte eingeführt sind - mit weich­elastischem Kunststoff umspritzt, so daß letztendlich ein fertiger Schutzkontaktstecker der Spritzform entnom­men werden kann. Dieser besteht - wie in Fig. 2 darge­stellt - aus einem Steckerkopf, hinter dem sich die ge­nannten Elemente verbergen und der über die Kontakt­stifte 15 in eine Netzsteckdose gesteckt werden kann. Damit ist das mit der Verbraucherleitung 17 verbundene Gerät mit dem allgemeinen Stromnetz verbunden.The plug bridge 1 with the molded part 21 for the connecting pin 16 of the protective conductor and with the molded part 30 for the connecting pins 16 of the current conductor forms a form-fitting and non-positively joined assembly unit. This is - after the stripped conductor ends of the current conductor and the protective conductor are inserted into the hollow cylindrical connecting pins - overmoulded with soft elastic plastic, so that a finished protective contact plug can ultimately be removed from the injection mold. This consists - as shown in Fig. 2 - of a plug head, behind which the elements mentioned are hidden and which can be plugged into a mains socket via the contact pins 15. The device connected to the consumer line 17 is thus connected to the general power network.

Claims (6)

1. Schutzkontaktstecker für an eine Netzsteckdose anschließ­bare elektrische Geräte,
mit einer im wesentlichen U-förmigen Steckerbrücke zur Aufnahme und Fixierung von hohlzylindrischen Anschluß­stiften für die Stromleiter und den Schutzleiter einer Verbraucherleitung im offenen Bereich des U, und zur Aufnahme der galvanisch mit dem Anschlußstift der Strom­leiter verbundenen Kontaktstifte am Boden des U, wobei die Leiterenden der Verbraucherleitung endseitig abisoliert in die Anschlußstifte gesteckt und mit die­sen, insbesondere über eine Crimpverbindung, verbunden sind, und wobei die Steckerbrücke gemeinsam mit einem Endstück der Verbraucherleitung in einer Spritzform mit insbesondere weichelastischem Kunststoff umspritzt ist, dadurch gekennzeichnet,
daß mindestens einem der Anschlußststifte (16, 19) ein Formteil (21, 30) mit einem konischen Durchgangsloch (23, 32) vorgesetzt ist, wobei der kleinere Lochdurch­messer auf der Stirnseite der Anschlußstifte (16, 19) aufliegt, und wobei die Materialstärke des Formteil (21, 30) zumindest im Bereich der Durchgangslöcher (23, 32) so gewählt ist, daß beim Einführen der abiso­lierten Leiterenden etwa umgebogene Einzeldrähtchen innerhalb des entsprechenden Durchgangslochs (23, 32) zu liegen kommen.1. safety plug for electrical devices that can be connected to a mains socket,
with an essentially U-shaped plug bridge for receiving and fixing hollow cylindrical connection pins for the current conductors and the protective conductor of a consumer line in the open area of the U, and for receiving the contact pins galvanically connected to the connection pin of the current conductors at the bottom of the U, the conductor ends of the The end of the consumer cable is stripped and inserted into the connecting pins and connected to the latter, in particular via a crimp connection, and the connector bridge is overmolded together with an end piece of the consumer line in an injection mold with, in particular, flexible plastic, characterized in that
that at least one of the connecting pins (16, 19) is a molded part (21, 30) with a conical through hole (23, 32) in front, the smaller hole diameter resting on the end face of the connecting pins (16, 19), and wherein the material thickness of the The shaped part (21, 30), at least in the area of the through holes (23, 32), is selected so that when the stripped conductor ends are inserted, approximately bent individual wires come to lie within the corresponding through hole (23, 32). 2. Schutzkontaktstecker nach Anspruch 1,
dadurch gekennzeichnet,
daß das Formteil (21) für den Anschlußstift (19) des Schutzleiters integrierter Bestandteil der Stecker­brücke (1) ist.2. safety plug according to claim 1,
characterized,
that the molded part (21) for the connecting pin (19) of the protective conductor is an integral part of the plug bridge (1). 3. Schutzkontaktstecker nach Anspruch 2,
dadurch gekennzeichnet,
daß das Formteil (21) für den Anschlußstift (19) des Schutzleiters an dem diesem Anschlußstift (19) benach­barten Schenkel (11) des U anschließt, koaxial zum An­schlußstift (19) das Durchgangsloch (23) aufweist, und an der freien den Anschlußstift (19) überkragenden Sei­te einen am Verbindungssteg (14) des U aufstehenden Stützfuß (22) aufweist.3. safety plug according to claim 2,
characterized,
that the molded part (21) for the connecting pin (19) of the protective conductor connects to the leg (11) of the U adjacent to this connecting pin (19), has the through hole (23) coaxially with the connecting pin (19), and the connecting pin () 19) projecting side has a support leg (22) standing up on the connecting web (14) of the U. 4. Schutzkontaktstecker nach Anspruch 1,
dadurch gekennzeichnet,
daß das Formteil (30) für die Anschlußstifte (16) der Stromleiter als beide Anschlußstifte (16) überkragende Brücke ausgebildet ist, die je ein koaxial zu den An­schlußstiften (16) liegendes Durchgangsloch (32) auf­weist.4. safety plug according to claim 1,
characterized,
that the molded part (30) for the connection pins (16) of the current conductors is designed as a bridge projecting over both connection pins (16), each of which has a through hole (32) lying coaxially to the connection pins (16). 5. Schutzkontaktstecker nach Anspruch 2, 3 oder 4,
dadurch gekennzeichnet,
daß das Formteil (21) für den Anschlußstift (19) des Schutzleiters im Bereich des Stützfußes (22) und das brückenartige Formteil (30) für die Anschlußstifte (16) der Stromleiter derart komplementär zueinander ausgebildet sind, daß das brückenartige Formteil (30) am Formteil (21) für den Anschlußstift (19) des Schutzleiters rastend gehalten ist.5. safety plug according to claim 2, 3 or 4,
characterized,
that the molded part (21) for the connecting pin (19) of the protective conductor in the region of the support foot (22) and the bridge-like molded part (30) for the connecting pins (16) of the current conductors are designed to be complementary to one another such that the bridge-like molded part (30) on Shaped part (21) for the connecting pin (19) of the protective conductor is held in place. 6. Schutzkontaktstecker nach Anspruch 5,
dadurch gekennzeichnet,
daß am Verbindungssteg (14) des U zwischen den An­ schlußstiften (16) für die Stromleiter neben dem Stützfuß (22) eine Konsole (33) vorgesehen ist, und daß Stützfuß (22), Konsole (33) und brücken­artiges Formteil (30) so aufeinander abgestimmt und komplementär zueinander ausgebildet sind, daß das Formteil (30) form- und kraftschlüssig einrastbar ist.6. safety plug according to claim 5,
characterized,
that on the connecting web (14) of the U between the An closing pins (16) for the current conductor next to the support leg (22) a bracket (33) is provided, and that the support leg (22), bracket (33) and bridge-like molded part (30) are matched to one another and complementary to one another that the molded part (30) can be locked in a positive and non-positive manner.
EP19890103548 1988-03-09 1989-03-01 Bridging means for safety plug with hollow cylindrical pins for the current and earth leads Expired - Lifetime EP0332034B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3807716A DE3807716C3 (en) 1988-03-09 1988-03-09 Plug bridge for a protective contact plug with hollow cylindrical connection pins for the current conductor and the protective conductor
DE3807716 1988-03-09

Publications (4)

Publication Number Publication Date
EP0332034A2 true EP0332034A2 (en) 1989-09-13
EP0332034A3 EP0332034A3 (en) 1991-08-21
EP0332034B1 EP0332034B1 (en) 1993-06-02
EP0332034B2 EP0332034B2 (en) 1998-09-09

Family

ID=6349243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890103548 Expired - Lifetime EP0332034B2 (en) 1988-03-09 1989-03-01 Bridging means for safety plug with hollow cylindrical pins for the current and earth leads

Country Status (3)

Country Link
EP (1) EP0332034B2 (en)
DE (4) DE8817241U1 (en)
ES (1) ES2041356T5 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391298A2 (en) * 1989-04-07 1990-10-10 Taller GmbH Connector with protective contact and with a lead-in help coordinated to the connection socket of the protective contact
EP0452760A1 (en) * 1990-04-20 1991-10-23 Taller GmbH Protective contact plug with a bridge shaped moulding
EP0452761A1 (en) * 1990-04-20 1991-10-23 Taller GmbH Protective contact plug with base plate and earth spring contact
EP0468315A1 (en) * 1990-07-27 1992-01-29 Taller GmbH Bridging member for doubly earthed safety plug
BE1006306A3 (en) * 1991-08-23 1994-07-19 Gem Machinery Ind Co Ltd Sheet with a specially designed pins structure.
EP0773606A2 (en) * 1995-11-10 1997-05-14 Taller GmbH Protective contact plug with insertion aid at the connection socket for the earth conductor
CN102270786A (en) * 2010-09-17 2011-12-07 苏州建通光电端子有限公司 Three-pole power plug

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012582C2 (en) * 1990-04-20 1994-09-15 Taller Gmbh Earthing contact plug with an integrated T-shaped molding
DE19628725C1 (en) * 1996-07-17 1997-10-23 Taller Gmbh Plug-in contact bridge for protection contact plug of mains socket outlet
DE10036472C1 (en) * 2000-07-19 2002-02-21 Taller Gmbh insertion aid
DE10051348C2 (en) * 2000-07-25 2002-06-13 Taller Gmbh Plug bridge with insertion aid arrangement
DE10062738B4 (en) * 2000-12-15 2010-09-09 Taller Gmbh Hinged lid plugs
ES2272871T3 (en) * 2003-10-07 2007-05-01 Gem Terminal Ind.Co., Ltd. GROUND PLATE FOR A PLUG.
EP1575129A1 (en) * 2004-03-09 2005-09-14 AKE-ATALAY Kalip Elektrik Sanayi ve Ticaret Ltd. Protective earthing conductor safety means for electrical appliance plug
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1108767B (en) * 1957-05-02 1961-06-15 Busch Jaeger Duerener Metall Electrical plug
DE3202747A1 (en) * 1982-01-28 1983-08-04 Robert Krups Stiftung & Co KG, 5650 Solingen Mains plug
FR2538625A1 (en) * 1982-12-23 1984-06-29 Cemrep Plug with pins for an electrical power connection
DE8716567U1 (en) * 1987-12-16 1988-02-11 Schaar, Ingrid, 7517 Waldbronn Connector pin
DE8802047U1 (en) * 1988-02-17 1988-03-31 Schaar, Ingrid, 7517 Waldbronn Electrical plug contact

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8318328U1 (en) * 1983-06-24 1983-11-17 Taller GmbH Metall- und Kunststofftechnik, 7517 Waldbronn Contact carrier for a safety plug
DE8707304U1 (en) * 1986-05-30 1987-07-23 Leonische Drahtwerke AG, 8500 Nürnberg Plug
DE3640914C2 (en) * 1986-11-29 1994-11-03 Taller Gmbh Earthing contact plug with jumper and protective cap
DE3809772C1 (en) * 1988-02-17 1989-03-16 Schaar, Ingrid, 7517 Waldbronn, De Electrical plug connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1108767B (en) * 1957-05-02 1961-06-15 Busch Jaeger Duerener Metall Electrical plug
DE3202747A1 (en) * 1982-01-28 1983-08-04 Robert Krups Stiftung & Co KG, 5650 Solingen Mains plug
FR2538625A1 (en) * 1982-12-23 1984-06-29 Cemrep Plug with pins for an electrical power connection
DE8716567U1 (en) * 1987-12-16 1988-02-11 Schaar, Ingrid, 7517 Waldbronn Connector pin
DE8802047U1 (en) * 1988-02-17 1988-03-31 Schaar, Ingrid, 7517 Waldbronn Electrical plug contact

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391298A2 (en) * 1989-04-07 1990-10-10 Taller GmbH Connector with protective contact and with a lead-in help coordinated to the connection socket of the protective contact
EP0391298A3 (en) * 1989-04-07 1991-03-27 Taller GmbH Connector with protective contact and with a lead-in help coordinated to the connection socket of the protective contact
EP0452760A1 (en) * 1990-04-20 1991-10-23 Taller GmbH Protective contact plug with a bridge shaped moulding
EP0452761A1 (en) * 1990-04-20 1991-10-23 Taller GmbH Protective contact plug with base plate and earth spring contact
EP0468315A1 (en) * 1990-07-27 1992-01-29 Taller GmbH Bridging member for doubly earthed safety plug
BE1006306A3 (en) * 1991-08-23 1994-07-19 Gem Machinery Ind Co Ltd Sheet with a specially designed pins structure.
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
EP0918375A1 (en) * 1995-11-10 1999-05-26 Taller GmbH Plug insert for a connector with earthing contact and with an introduction cone associated with the connection socket of the protective contact
CN102270786A (en) * 2010-09-17 2011-12-07 苏州建通光电端子有限公司 Three-pole power plug
CN102270786B (en) * 2010-09-17 2013-07-31 苏州建通光电端子有限公司 Three-pole power plug

Also Published As

Publication number Publication date
DE3915852C2 (en) 1996-09-19
ES2041356T5 (en) 1999-01-16
DE3911315A1 (en) 1990-10-11
DE3911316C2 (en) 2003-05-28
DE3911315C2 (en) 1996-02-29
DE3915852A1 (en) 1990-11-22
DE8817241U1 (en) 1995-05-11
EP0332034A3 (en) 1991-08-21
EP0332034B2 (en) 1998-09-09
EP0332034B1 (en) 1993-06-02
ES2041356T3 (en) 1993-11-16
DE3911316A1 (en) 1990-10-11

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