EP0111756B1 - Multiple socket with contact giving, mountable cover plate for plugs with a protective contact and bipolar plugs - Google Patents

Multiple socket with contact giving, mountable cover plate for plugs with a protective contact and bipolar plugs Download PDF

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Publication number
EP0111756B1
EP0111756B1 EP83111419A EP83111419A EP0111756B1 EP 0111756 B1 EP0111756 B1 EP 0111756B1 EP 83111419 A EP83111419 A EP 83111419A EP 83111419 A EP83111419 A EP 83111419A EP 0111756 B1 EP0111756 B1 EP 0111756B1
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EP
European Patent Office
Prior art keywords
plug
earth
contact
cover plate
socket contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83111419A
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German (de)
French (fr)
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EP0111756A3 (en
EP0111756A2 (en
Inventor
Günther Otte
Willi Eickhoff
Leo Mittler
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.)
ASEA BROWN BOVERI AKTIENGESELLSCHAFT
Original Assignee
ASEA BROWN BOVERI AG
Asea Brown Boveri AG Germany
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Application filed by ASEA BROWN BOVERI AG, Asea Brown Boveri AG Germany filed Critical ASEA BROWN BOVERI AG
Priority to AT83111419T priority Critical patent/ATE42871T1/en
Publication of EP0111756A2 publication Critical patent/EP0111756A2/en
Publication of EP0111756A3 publication Critical patent/EP0111756A3/en
Application granted granted Critical
Publication of EP0111756B1 publication Critical patent/EP0111756B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • H01R27/02—Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more dissimilar counterparts

Definitions

  • the invention relates to a multiple socket of the type mentioned in the preamble of claim 1.
  • Plug devices of this type are known in Germany under the name Euro plug device. An associated two-pin plug fits into a protective contact socket, but a protective contact plug must not fit into a two-pin socket, since the protective contact is missing here. Two-pin sockets are therefore generally provided with smaller plug openings for receiving the plug pins, through which the thicker plug pins of an earthed plug do not fit.
  • DE-U-7 700 238 discloses a multiple protective contact socket, in particular double protective contact socket.
  • a non-protective contact socket in particular a Euro socket, integrated on a common base next to a protective contact socket is not known from this.
  • CH-A-460 901 discloses a multiple plug contact with a power supply and two power outputs.
  • the plug-in contact which can be plugged into an international standard socket with protective contact, has two connector pins and one grounding pin on the input side. On the output side, there are earthing pins in each of the two earthing contact plug pots, which are connected to earthing contact sockets via a metallic conductor.
  • this plug-in device it is possible to plug a plurality of plug contacts one above the other on the respective protective contact plug pots, as a result of which a large number of protective contact plug pots can be implemented.
  • a non-protective contact plug pot in particular a non-protective contact plug pot provided for the connection of insulated euro plugs, is also not known from this prior art.
  • FIG. 1 An embodiment of a multiple socket shown in FIG. 1 and otherwise not claimed is constructed in such a way that a commercially available mono socket 4a is used for earthed plugs.
  • the cover plate 1 is constructed in such a way that sockets can be arranged in cutouts 15, 16 which are formed below the plug-in pots 2a, 3a.
  • Homopolar sockets are connected to each other and with plug elements 5a, which engage centrally in the sockets of a preassembled mono plug base 4a. Since all the sockets required both for the protective contact plug and for the two-pin plug are fastened to the cover plate, cutouts 15, 16 of the same size and thus also stop planes 12a, 13a lying in one plane result.
  • FIG. 2 shows an embodiment of the multiple socket according to the invention.
  • a commercially available double socket 4b is used for two protective contact plugs, the sockets and protective contact elements of one of the two plug receptacles of the socket 4b being arranged such that they are aligned with the plug openings 6 of the protective contact socket 2b.
  • all contacts of the protective contact socket are in the socket 4b and not in the cover plate 1b.
  • the required sockets 7, 8 are accommodated in a recess 15 and mechanically connected to the cover plate 1 b only below the two-pin plug socket 3b.
  • Plug elements 5b are also integrally formed on the preferably one-piece homopolar sockets 7, 8. The shape of the one-piece sockets 7, 8 can be seen in FIG.

Abstract

1. Multiple socket with a flush-mounted wall installation box (10), a support ring (9) which is fixed in the latter, a cover plate (1b), which exhibits an earth-contact plug cup (2b) provided for the connection of a first three-pin plug with earth contact and at least one non-earth-contact plug cup (3b) provided for the connection of at least one second two-pin all-insulated plug, and an earth-contact double plug socket (4b) which is recessed in the flush-mounted wall installation box (10) and which carries two first pin base socket contacts associated with a first pole and two second pin base socket contacts associated with a second pole, pin base socket contacts of the same polarity being electrically conductively connected to one another, characterized in that in a recess (15) immediately below plug lead-throughs (14) on the non-earth-contact plug cup (3b) and within the cover plate (1b) first cover plate socket contacts (7) associated with a first pole and second cover plate socket contacts (8) associated with a second pole are arranged, the cover plate socket contacts (7, 8) which are in each case the same polarity, being connected to one another in one piece and are electrically conductively connected via plug elements (5b) moulded on in each case to the electrically associated pin base socket contacts, that plug lead-throughs (6) present in the earth-contact plug cup (2b) are flush with the pin base socket contacts in each case electrically associated with them, that a second stop level (12b) used as stop for the all-insulated second plugs is farther distant from the surface of the wall (11) than a first stop level (13b) used as stop for the first plug with earth contact, in which arrangement the stop levels (12b, 13b) are parallel both with respect to one another and to the wall (11) and that the circular plug lead-throughs (14) of the non-earth-contact plug cup (3b) exhibit a smaller diameter than the circular plug lead-throughs (6) of the earth-contact plug cup (2b).

Description

Die Erfindung betrifft eine Mehrfachsteckdose der im Oberbegriff des Anspruchs 1 genannten Art.The invention relates to a multiple socket of the type mentioned in the preamble of claim 1.

Zum Anschließen von elektrischen Geräten an das Netz sind nur solche Steckvorrichtungen zugelassen, die die jeweiligen Sicherheitsvorschriften erfüllen. Die wohl häufigste Art den Bedienenden vor gefährlichen Berührungsspannungen zu schützen, ist die Verwendung einer dreipoligen Steckvorrichtung. Der als Schutzkontakt wirkende dritte Pol sorgt dafür, daß bei Isolationsmängeln auftretende Fehlerströme gegen die Erde abgeleitet werden. Der Aufbau einer derartigen Schutzkontakt-Steckvorrichtung ist in den verschiedenen Ländern zum Teil recht unterschiedlich. In Deutschland ist die sogenannte Schuko-Steckvorrichtung genormt.Only connectors that meet the relevant safety regulations are permitted to connect electrical devices to the mains. The most common way to protect the operator from dangerous touch voltages is to use a three-pin connector. The third pole, which acts as a protective contact, ensures that fault currents occurring in the event of poor insulation are discharged against the earth. The structure of such a protective contact plug device is sometimes quite different in the different countries. In Germany, the so-called Schuko plug device is standardized.

Eine weitere, in der Häufigkeit ihrer Anwendung ständig zunehmende Schutzmöglichkeit ist die Schutzisolierung. Durch die Isolierung wird von vornherein das Entstehen gefährlicher Fehlerströme oder Fehlerspannungen im Berührungsbereich des Bedienenden verhindert. Bei diesen Steckvorrichtungen kann dementsprechend, der als Schutzkontakt dienende dritte Pol entfallen, so daß eine wesentlich kleinere und handlichere Zweipol-Steckvorrichtung verwendet werden kann. Steckvorrichtungen dieser Art sind in Deutschland unter dem Namen Euro-Steckvorrichtung bekannt. Ein hierzu gehöriger Zweipol-Stecker paßt zwar in eine Schutzkontakt-Steckdose, ein Schutzkontakt-Stecker darf jedoch nicht in eine Zweipol-Steckdose passen, da hier der Schutzkontakt fehlt. Zweipol-Steckdosen sind deshalb im allgemeinen mit kleineren Stecköffnungen zur Aufnahme der Steckerstifte versehen, durch die die dickeren Steckerstifte eines Schutzkontakt-Steckers nicht hindurchpassen.Another type of protection that is constantly increasing in frequency of use is protective insulation. The insulation prevents the occurrence of dangerous fault currents or fault voltages in the contact area of the operator from the outset. With these plug-in devices, the third pole serving as a protective contact can accordingly be omitted, so that a much smaller and handier two-pole plug-in device can be used. Plug devices of this type are known in Germany under the name Euro plug device. An associated two-pin plug fits into a protective contact socket, but a protective contact plug must not fit into a two-pin socket, since the protective contact is missing here. Two-pin sockets are therefore generally provided with smaller plug openings for receiving the plug pins, through which the thicker plug pins of an earthed plug do not fit.

Der steigende Anteil der schutzisolierten Geräte hat dazu geführt, daß auch der Bedarf an Zweipol-Steckdosen gestiegen ist. Diese sind im Vergleich zu Schutzkontakt-Steckdosen nicht nur in ihrem Aufbau einfacher und damit billiger sondern vor allem kleiner, so daß auf der gleichen Fläche etwa die doppelte Anzahl montiert werden kann. Es werden deshalb bereits Steckdosen-Anordnungen gebaut, insbesondere beweglicher Art, wie z. B. Tischsteckdosen, bei denen neben Schutzkontakt-Steckdosen auch spezielle Zweipol-Steckdosen angeordnet sind. Um nun zu verhindern, daß an einigen Stellen eines installierten Hauses nur Zweipol-Steckdosen zur Verfügung stehen, sieht ein deutscher Normentwurf vor, daß bei der Montage von maximal zwei Zweipol-Steckdosen mindestens eine Schutzkontakt-Steckdose anzubringen ist.The increasing proportion of insulated devices has led to an increase in the need for two-pin sockets. Compared to earthed sockets, these are not only simpler in their construction and therefore cheaper, but above all smaller, so that approximately twice the number can be installed on the same surface. There are therefore already built socket arrangements, in particular movable type, such as. B. table sockets, in which in addition to protective contact sockets also special two-pin sockets are arranged. In order to prevent that only two-pole sockets are available in some places in an installed house, a German draft standard stipulates that at least one protective contact socket must be fitted when installing a maximum of two two-pole sockets.

Auch wenn der Normentwurf zunächst nur für einen territorial begrenzten Bereich gilt, so besitzt doch die ihm zugrundeliegende Forderung Allgemeingültigkeit. Die Erfindung geht nun von der Überlegung aus, daß der Installateur am sichersten dadurch zur Einhaltung bestimmter Vorschriften oder sachgerechter Empfehlungen zu bewegen ist, wenn das zur Verfügung stehende Installationsmaterial in optimaler Weise so vorbereitet ist, daß die unerwünschten Kombinationen gar nicht realisierbar sind.Even if the draft standard initially only applies to a territorially limited area, the underlying requirement is still generally applicable. The invention is now based on the consideration that the installer can be moved most safely to comply with certain regulations or appropriate recommendations if the available installation material is optimally prepared in such a way that the undesired combinations cannot be implemented at all.

Es ist weiterhin zu berücksichtigen, daß sich die Zahl der Geräte mit Zweipol-Stecker insbesondere in den letzten Jahren stark erhöht hat, so daß bereits erstellte Installationen diesem Umstand kaum Rechnung tragen. Es wird deshalb relativ oft erforderlich sein, bereits vorhandene Einrichtungen den neuen Gegebenheiten anzupassen, also z.B. bereits installierte Unterputzdosen mit einer Mehrfachsteckdose zu versehen.It should also be borne in mind that the number of devices with a two-pin connector has increased significantly in recent years, so that installations that have already been made hardly take this into account. It will therefore be relatively often necessary to adapt existing facilities to the new conditions, e.g. to provide already installed flush-mounted sockets with a multiple socket.

Die DE-U-7 700 238 offenbart eine Mehrfach-Schutzkontaktsteckdose, insbesondere Doppel-Schutzkontaktsteckdose. Eine auf einem gemeinsamen Sockel neben einer Schutzkontakt-Steckdose integrierte Nichtschutzkontakt-Steckdose, insbesondere Euro-Steckdose ist hieraus jedoch nicht bekannt.DE-U-7 700 238 discloses a multiple protective contact socket, in particular double protective contact socket. However, a non-protective contact socket, in particular a Euro socket, integrated on a common base next to a protective contact socket is not known from this.

Die CH-A-460 901 offenbart einen Mehrfach-Steckkontakt mit einer Stromzuführung und zwei Stromausgängen. Der nach Art eines Adapters an Schutzkontakt-Steckdosen ausländischer Norm einsteckbare Steckkontakt weist eingangsseitig zwei Steckerstifte und einen Erdungsstift auf. Ausgangsseitig sind in jedem der beiden Schutzkontakt-Steckertöpfe Erdungsstifte vorhanden, welche über einen metallischen Leiter mit Schutzkontakt-Steckbuchsen verbunden sind. Mit dieser Steckvorrichtung ist es möglich, auf den jeweils vorhandenen Schutzkontakt-Steckertöpfen mehrere Steckerkontakte übereinander zu stecken, wodurch sich eine Vielzahl von Schutzkontakt-Steckertöpfen verwirklichen läßt. Ein Nichtschutzkontakt-Steckertopf, insbesondere ein für den Anschluß von schutzisolierten Eurosteckern vorgesehener Nichtschutzkontakt-Steckertopf ist aus diesem Stand der Technik ebenfalls nicht bekannt.CH-A-460 901 discloses a multiple plug contact with a power supply and two power outputs. The plug-in contact, which can be plugged into an international standard socket with protective contact, has two connector pins and one grounding pin on the input side. On the output side, there are earthing pins in each of the two earthing contact plug pots, which are connected to earthing contact sockets via a metallic conductor. With this plug-in device, it is possible to plug a plurality of plug contacts one above the other on the respective protective contact plug pots, as a result of which a large number of protective contact plug pots can be implemented. A non-protective contact plug pot, in particular a non-protective contact plug pot provided for the connection of insulated euro plugs, is also not known from this prior art.

Die DE-A-2 344412 beschreibt eine für den Unterputz-Einbau vorgesehene Doppelsteckdose, deren Sockel Doppelkontaktfedern aufweist. Sie ermöglicht nebeneinander die Anordnung von entweder zwei Schuko- oder zwei Zweipol-Stekkern; nicht jedoch deren Kombination.DE-A-2 344412 describes a double socket provided for flush mounting, the base of which has double contact springs. It enables the arrangement of either two Schuko or two two-pin plugs next to each other; but not their combination.

Ausgehend von dem in der DE-A-2 344 412 offenbarten Stand der Technik ist es Aufgabe der Erfindung, eine, einen Schutzkontakt-Steckertopf und mindestens einen Nichtschutzkontakt-Stekkertopf aufweisende Mehrfach-Steckdose zu schaffen, die unter Verwendung bereits installierter Unterputz-Schutzkontakt-Doppelstecksockel leicht umrüstbar ist und bei welcher die Höhe des Wandaufbaus weitgehend verringert ist.Starting from the prior art disclosed in DE-A-2 344 412, it is the object of the invention to create a multiple socket having a protective contact plug socket and at least one non-protective contact plug socket, which can be installed using already installed flush-mounted protective contact Double socket is easily convertible and in which the height of the wall structure is largely reduced.

Diese Aufgabe wird durch die im Anspruch 1 genannten Merkmale gelöst. Weitere Ausbildungen und Fortgestaltungen des Erfindungsgegenstandes sind in den Unteransprüchen gekennzeichnet.This object is achieved by the features mentioned in claim 1. Further training and further developments of the subject matter of the invention are characterized in the subclaims.

Durch die untrennbare Vereinigung eines Schutzkontakt-Stecktopfes und eines Zweipol-Stecktopfes in einer Abdeckplatte ist sichergestellt, daß bei der Montage von Zweipol-Steckdosen gleichzeitig auch eine Schutzkontakt-Steckdose zur Verfügung steht. Da durch die Anordnung mehrerer Steckdosen nebeneinander die Abdeckplatte eine nicht reduzierbare Breite erreicht, überschreitet diese erheblich die Breite einer Unterputzdose und damit des in ihr befestigten Stecksockels. Die sich aus diesen räumlichen Verhältnissen ergebenden Kontaktierungsschwierigkeiten werden dadurch vermieden, daß an mindestens einem der Stecktöpfe Steckbuchsen befestigt sind. Außerdem stehen die gleichpoligen Steckbuchsen an den Stecktöpfen sowohl untereinander als auch mit den Steckbuchsen eines vormontierten Schutzkontakt-Stecksockels über elektrisch leitende Verbindungselemente in Verbindung.The inseparable combination of a protective contact socket and a two-pin socket in a cover plate ensures that a protective contact socket is also available when two-pin sockets are installed. Because of the arrangement several sockets side by side the cover plate reaches a non-reducible width, this considerably exceeds the width of a flush-mounted box and thus the plug-in base fastened in it. The contacting difficulties resulting from these spatial conditions are avoided by attaching sockets to at least one of the plug-in pots. In addition, the same-pole sockets on the sockets are connected both to each other and to the sockets of a preassembled protective contact socket via electrically conductive connecting elements.

Die Erfindung strebt an, außer bei der Abdeckplatte möglichst nur handelsübliche Bauteile zu verwenden. Es kann jedoch zweckmäßig sein, den Schutzkontakt-Stecksockel derart an die Abdeckplatte anzupassen, daß bei einem Doppel-Stecksockel unterhalb des Zweipol-Stecktopfes die Schutzkontaktelemente fehlen. In diesem Fall ist es vorteilhaft am Schutzkontakt-Stecksockel und der Abdeckplatte korrespondierende Kodierstücke zu befestigen, die ein verdrehtes Montieren der Abdeckplatte verhindern.The invention aims to use only commercially available components as far as possible except for the cover plate. However, it may be expedient to adapt the protective contact plug base to the cover plate in such a way that the protective contact elements are missing in a double plug base below the two-pin plug socket. In this case, it is advantageous to attach corresponding coding pieces to the protective contact plug-in base and the cover plate, which prevent twisted mounting of the cover plate.

Vor allem dann, wenn um einen zentral angeordneten Schutzkontakt-Stecktopf mehrere Zweipol-Stecktöpfe angeordnet sind, ist es angebracht, nach Mitteln zu suchen, die eine gegenseitige Behinderung mehrerer Stecker beim Einstecken und Ausziehen weitgehend vermeiden. Ein solches Mittel wird dadurch geschafften, daß die Auflagefläche der Stecker bei den Zweipol-Stecktöpfen gegenüber der Auflagefläche der Stecker bei den Schutzkontakt-Stecktöpfen nach außen gekippt ist. Die eingesteckten Zweipol-Stecker sollen dabei mit der Oberfläche der Wand einen Winkel größer 90° bilden.Especially when several two-pole plug-in receptacles are arranged around a centrally arranged protective contact plug-in receptacle, it is appropriate to look for means that largely avoid the mutual hindrance of several plugs when inserting and removing. Such a means is achieved in that the contact surface of the plugs in the two-pin plug-in receptacles is tilted outwards relative to the contact surface of the plugs in the protective contact plug-in receptacles. The inserted two-pin plug should form an angle greater than 90 ° with the surface of the wall.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden nachfolgend näher beschrieben.Embodiments of the invention are shown in the drawings and are described in more detail below.

Es zeigen:

  • Figur 1: Eine Mehrfachsteckdose mit aufsteckbarer Abdeckplatte, bei der die Kontaktierung mit einem handelsüblichen Mono-Stecksockel erfolgt.
  • Figur 2: Eine Mehrfachsteckdose, bei der die Kontaktierung in einem Doppel-Stecksockel erfolgt.
  • Figur 3: Eine Draufsicht auf die in Figur 2 im Schnitt dargestellte Mehrfachsteckdose.
Show it:
  • Figure 1: A multiple socket with attachable cover plate, in which the contact is made with a commercially available mono plug-in base.
  • Figure 2: A multiple socket in which the contact is made in a double socket.
  • Figure 3: A plan view of the multiple socket shown in Figure 2 in section.

Die Mehrfachsteckdose besteht aus einer Abdeckplatte 1, einer Unterputzdose 10, einem Stecksockel 4 und einem Tragring 9. In der Abdeckplatte 1 sind ein Schutzkontakt-Stecktopf 2 für einen Schutzkontakt-Stecker und ein Zweipol-Stecktopf 3 für zwei Zweipol-Stecker ausgebildet. Zumindest unterhalb des Zweipol-Stecktopfes 3 sind in einer Aussparung 15 Steckbuchsen unmittelbar an der Abdeckplatte 1 angebracht. Diese, sowie die meisten anderen Kontaktelemente sind in den Zeichnungen nicht dargestellt, da es sich um bekannte Ausführungen handelt und deren Anpassung an die jeweiligen Verhältnisse handwerkliche Maßnahmen sind.The multiple socket consists of a cover plate 1, a flush-mounted socket 10, a plug-in base 4 and a support ring 9. In the cover plate 1, a protective contact socket 2 for a protective contact plug and a two-pin socket 3 for two two-pin connectors are formed. At least below the two-pin socket 3, 15 sockets are attached directly to the cover plate 1 in a recess. These, as well as most other contact elements, are not shown in the drawings, since they are known designs and their adaptation to the respective conditions are manual measures.

Eine in Figur 1 dargestellte und im übrigen nicht beanspruchte Ausführungsform einer Mehrfach- steckdose ist so aufgebaut, daß ein handelsüblicher Mono-Stecksockel 4a für Schutzkontakt-Stekker Verwendung findet. Hierzu ist die Abdeckplatte 1 so aufgebaut, daß in Aussparungen 15, 16, die unterhalb der Stecktöpfe 2a, 3a ausgebildet sind, Steckbuchsen angeordnet werden können. Gleichpolige Steckbuchsen sind untereinander und mit Steckerelementen 5a verbunden, die zentral in die Steckbuchsen eines vormontierten Mono-Stecksockels 4a eingreifen. Da alle sowohl für den Schutzkontakt-Stecker wie auch für die Zweipol-Stecker benötigten Steckbuchsen an der Abdeckplatte befestigt sind, ergeben sich gleich große Aussparungen 15, 16 und damit auch in einer Ebene liegende Anschlagebenen 12a, 13a.An embodiment of a multiple socket shown in FIG. 1 and otherwise not claimed is constructed in such a way that a commercially available mono socket 4a is used for earthed plugs. For this purpose, the cover plate 1 is constructed in such a way that sockets can be arranged in cutouts 15, 16 which are formed below the plug-in pots 2a, 3a. Homopolar sockets are connected to each other and with plug elements 5a, which engage centrally in the sockets of a preassembled mono plug base 4a. Since all the sockets required both for the protective contact plug and for the two-pin plug are fastened to the cover plate, cutouts 15, 16 of the same size and thus also stop planes 12a, 13a lying in one plane result.

Figur 2 zeigt ein Ausführungsbeispiel der Mehrfachsteckdose nach der Erfindung.Figure 2 shows an embodiment of the multiple socket according to the invention.

Hierbei wird ein handelsüblicher Doppel-Stecksockel 4b für zwei Schutzkontakt-Stecker verwendet, wobei die Steckbuchsen und SchutzkontaktElemente einer der beiden Steckaufnahmen des Stecksockels 4b so angeordnet sind, daß sie mit den Stecköffnungen 6 des Schutzkontakt-Stecktopfes 2b fluchten. Bei dieser Ausführung liegen also alle Kontakte der Schutzkontakt-Steckdose im Stecksockel 4b und nicht in der Abdeckplatte 1b. Lediglich unterhalb des Zweipol-Stecktopfes 3b sind in einer Aussparung 15 die benötigten Steckbuchsen 7, 8 untergebracht und mit der Abdeckplatte 1 b mechanisch verbunden. An den vorzugsweise einstückig ausgebildeten gleichpoligen Steckbuchsen 7, 8 sind gleichzeitig auch Steckerelemente 5b angeformt. Die Form der einstückig ausgebildeten Steckbuchsen 7, 8 läßt Figur 3 erkennen.Here, a commercially available double socket 4b is used for two protective contact plugs, the sockets and protective contact elements of one of the two plug receptacles of the socket 4b being arranged such that they are aligned with the plug openings 6 of the protective contact socket 2b. In this version, all contacts of the protective contact socket are in the socket 4b and not in the cover plate 1b. The required sockets 7, 8 are accommodated in a recess 15 and mechanically connected to the cover plate 1 b only below the two-pin plug socket 3b. Plug elements 5b are also integrally formed on the preferably one-piece homopolar sockets 7, 8. The shape of the one-piece sockets 7, 8 can be seen in FIG.

Da nur unterhalb des zweipoligen Stecktopfes 3b eine Aussparung 15 mit Steckbuchsen 7, 8 ausgebildet ist, liegen die Anschlagebenen 12b, 13b der Stecker nicht mehr in einer Ebene. Außerdem ist der Zweipol-Stecktopf in seiner Tiefe wesentlich reduziert. Um dennoch das Einstecken eines Schutzkontakt-Steckers in die Zweipol-Steckdurchführungen 14 unmöglich zu machen, sind deren Durchmesser so klein ausgeführt, daß zwar die Steckerstifte von Zweipol-Steckern nicht aber diejenigen von Schutzkontakt-Steckern durchpassen.Since a recess 15 with sockets 7, 8 is formed only below the two-pole plug socket 3b, the stop planes 12b, 13b of the plug no longer lie in one plane. In addition, the depth of the two-pin socket is significantly reduced. In order to make it impossible to insert a protective contact plug into the two-pole plug-in bushings 14, their diameters are so small that the connector pins of two-pole plugs do not fit through those of protective contact plugs.

Claims (6)

1. Multiple socket with a flush-mounted wall installation box (10), a support ring (9) which is fixed in the latter, a cover plate (1b), which exhibits an earth-contact plug cup (2b) provided for the connection of a first three-pin plug with earth contact and at least one non-earth-contact plug cup (3b) provided for the connection of at least one second two-pin all-insulated plug, and an earth-contact double plug socket (4b) which is recessed in the flush-mounted wall installation box (10) and which carries two first pin base socket contacts associated with a first pole and two second pin base socket contacts associated with a second pole, pin base socket contacts of the same polarity being electrically conductively connected to one another, characterized in that in a recess (15) immediately below plug lead-throughs (14) on the non-earth-contact plug cup (3b) and within the cover plate (1b) first cover plate socket contacts (7) associated with a first pole and second cover plate socket contacts (8) associated with a second pole are arranged, the cover plate socket contacts (7, 8) which are in each case of the same polarity, being connected to one another in one piece and are electrically conductively connected via plug elements (5b) moulded on in each case to the electrically associated pin base socket contacts, that plug lead-throughs (6) present in the earth-contact plug cup (2b) are flush with the pin base socket contacts in each case electrically associated with them, that a second stop level (12b) used as stop for the all-insulated second plugs is farther distant from the surface of the wall (11) than a first stop level (13b) used as stop for the first plug with earth contact, in which arrangement the stop levels (12b, 13b) are parallel both with respect to one another and to the wall (11) and that the circular plug lead-throughs (14) of the non-earth-contact plug cup (3b) exhibit a smaller diameter than the circular plug lead-throughs (6) of the earth-contact plug cup (2b).
2. Multiple socket according to Claim 1, characterized in that the non-earth plug cup (3b) exhibits four plug lead-throughs (14) provided for leading through two two-pin all-insulated second plugs.
3. Multiple socket according to Claim 1 or 2, characterized in that in addition to or instead of the usual mounting means, which hold the cover plate (1) against the double pin base (4b), mounting elements are provided which engage the support ring (9) or the flush-mounted wall installation box (10) or directly engage the wall (11).
4. Multiple socket according to one of the preceding claims, characterized in that the cover plate socket contacts (7, 8) are fixed in a self-holding manner in the recesses (15) by anchoring or clamping.
5. Multiple socket according to one of the preceding claims, characterized in that the earth-contact elements are missing at the double pin base (4b) below the non-earth-contact plug cup (3b) and corresponding coding pieces, which prevent the cover plate (1) from being mounted in a twisted manner, are attached to the cover plate (1).
6. Multiple socket according to one of the preceding claims, characterized in that the second stop level (12b), provided for second two-pin all-insulated plugs, of a non-earth-contact plug cup (3b) is inclined away towards the outside compared with the first stop level (13b) used as stop for the first plug with earth contact, in such a manner that the inserted second plugs form an angle greater than 90° with the surface of the wall (11).
EP83111419A 1982-12-15 1983-11-15 Multiple socket with contact giving, mountable cover plate for plugs with a protective contact and bipolar plugs Expired EP0111756B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111419T ATE42871T1 (en) 1982-12-15 1983-11-15 MULTIPLE SOCKETS WITH CONTACTING, ATTACHABLE COVER PLATE FOR PROTECTIVE CONTACT PLUG AND TWO-POLE PLUG.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3246423 1982-12-15
DE19823246423 DE3246423A1 (en) 1982-12-15 1982-12-15 MULTIPLE SOCKET WITH CONTACT GIVING, CLIP-ON COVER PLATE FOR PROTECTIVE CONTACT PLUG AND BIPOLAR CONNECTOR

Publications (3)

Publication Number Publication Date
EP0111756A2 EP0111756A2 (en) 1984-06-27
EP0111756A3 EP0111756A3 (en) 1987-06-03
EP0111756B1 true EP0111756B1 (en) 1989-05-03

Family

ID=6180741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111419A Expired EP0111756B1 (en) 1982-12-15 1983-11-15 Multiple socket with contact giving, mountable cover plate for plugs with a protective contact and bipolar plugs

Country Status (5)

Country Link
EP (1) EP0111756B1 (en)
AT (1) ATE42871T1 (en)
DE (2) DE3246423A1 (en)
FI (1) FI83915C (en)
NO (1) NO834612L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8426748D0 (en) * 1984-10-23 1984-11-28 Ranton & Co Ltd Electrical accessory connections
GB2296825B (en) * 1995-01-06 1999-01-13 John Wilson Electrical socket adaptor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE438012C (en) * 1926-12-03 Elektrotechn Bedarfsartikel El Lid to be placed on normal sockets
DE699986C (en) * 1935-12-19 1940-12-11 Vedder Gmbh Geb Socket for concealed installation
DE713027C (en) * 1936-09-26 1941-10-30 Vedder Gmbh Geb Socket for concealed installation
CH460901A (en) * 1967-10-27 1968-08-15 Baillod Frederic Multiple electrical outlet
DE2344412C3 (en) * 1973-09-03 1978-05-11 Paul Hochkoepper & Co, 5880 Luedenscheid Double socket
DE2612490C3 (en) * 1976-03-24 1979-02-22 Gebrueder Merten Gmbh & Co Kg, 5270 Gummersbach Electrical multiple socket
DE7630318U1 (en) * 1976-09-28 1977-12-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen
DE7700238U1 (en) * 1977-01-07 1977-04-21 Insta Elektro Gmbh & Co Kg, 5880 Luedenscheid Multiple protective contact socket
DE2909586A1 (en) * 1979-03-12 1980-09-25 Jung Albrecht Fa European plugs adaptor cover for socket - has double socket with recesses for plugs and contact flaps connecting to plug contact sockets when adaptor cover fitted
ATE36782T1 (en) * 1982-11-29 1988-09-15 Kopp Gmbh & Co Kg Heinrich ELECTRICAL PROTECTIVE SOCKET.
DE3246405A1 (en) * 1982-12-15 1984-06-20 Brown, Boveri & Cie Ag, 6800 Mannheim Multiple plug socket with a coded covering frame

Also Published As

Publication number Publication date
ATE42871T1 (en) 1989-05-15
DE3246423A1 (en) 1984-06-20
NO834612L (en) 1984-06-18
FI834537A0 (en) 1983-12-12
FI83915B (en) 1991-05-31
EP0111756A3 (en) 1987-06-03
EP0111756A2 (en) 1984-06-27
FI834537A (en) 1984-06-16
FI83915C (en) 1991-09-10
DE3379821D1 (en) 1989-06-08

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