EP1298763B1 - Protection against acces to contacts of an electrical outlet - Google Patents

Protection against acces to contacts of an electrical outlet Download PDF

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Publication number
EP1298763B1
EP1298763B1 EP02019610A EP02019610A EP1298763B1 EP 1298763 B1 EP1298763 B1 EP 1298763B1 EP 02019610 A EP02019610 A EP 02019610A EP 02019610 A EP02019610 A EP 02019610A EP 1298763 B1 EP1298763 B1 EP 1298763B1
Authority
EP
European Patent Office
Prior art keywords
shock
hazard protection
leaf spring
protection apparatus
hazard
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 - Lifetime
Application number
EP02019610A
Other languages
German (de)
French (fr)
Other versions
EP1298763A3 (en
EP1298763A2 (en
Inventor
Maic Dipl.-Ing. Hensel
Wolfgang Dipl.-Ing Neumann
Andreas Dipl-Ing. Scheib
Werner Dipl.-Ing. Lisson
Günter Dipl.-Ing. Schulte-Lippern
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1298763A2 publication Critical patent/EP1298763A2/en
Publication of EP1298763A3 publication Critical patent/EP1298763A3/en
Application granted granted Critical
Publication of EP1298763B1 publication Critical patent/EP1298763B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4532—Rotating shutter
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4534—Laterally sliding shutter

Definitions

  • the invention relates to a contact protection device for a protective contact socket according to the preamble of claim 1.
  • the invention may, for example be used with flush-mounted sockets.
  • Such a contact protection device for a protective contact socket is off DE 914 991 C, which is considered to be the closest prior art, is known.
  • the known socket with locking device against unipolar insertion of a plug are two superposed slide provided, which are interconnected by a common axis, wherein the axis in longitudinal grooves under counter-pressure of a double-armed leaf spring displaceable is stored. As a result, a manipulation of the socket is prevented.
  • the return spring is designed as a spiral spring, block spring or torsion spring.
  • the return spring In fully automated installation of sockets tend such springs to twist each other, which required a separation of the springs (singulation) makes and thus a fully automatic assembly very difficult.
  • the invention has for its object to provide a contact protection device for a Specify grounded power outlet of the type mentioned, which fully automatically can be mounted.
  • Fig. 1 is a schematic representation of the components of the contact protection device shown according to a first embodiment. It is the back of one Socket insert 1 (C-disc) to recognize a protective contact socket, wherein formed on this back a contact protection lower part 2 - preferably integrally formed - is.
  • a contact protection lower part 2 - preferably integrally formed - is.
  • special components are a rotary valve 3 - in general, a safety slide - as well as a leaf spring 4 formed as a return spring introduced in the contact protection lower part 2.
  • the leaf spring 4 is movable between Inner wall of the contact protection lower part 2 and the rotary valve 3 is arranged.
  • An attachable to the contact protection base 2 and snap-on touch protection cover 5 serves to seal the contact protection device.
  • the contact protection device according to FIG. 1 in the closed position - d. H. without inserted plug pins of a plug - shown.
  • the rotary valve 3 is rotatable on a central in the contact protection lower part 2 located pin 6 is placed.
  • One arranged at the end of this pin 6 Latching 7 is used for locking the patch contact protection cover 5.
  • the leaf spring 4 is at one end by within the contact protection base 2 arranged ribs 8 fixed. The free end of the leaf spring 4 presses resiliently so against the rotary valve 3, that thereby the in the socket insert. 1 introduced plug openings for the introduction of plug pins of a plug by means of the rotary valve 3 are closed.
  • FIG. 3 the contact protection device according to FIG. 1 is shown in the open position. In this position, due to the simultaneous engagement of the connector pins of a Plug in the plug openings 11 of the rotatable rotary valve 3 against the spring force of the leaf spring 4 pivoted about the pin 6, that thereby the Stekkerömaschineen 11 are free. During the rotational movement of the rotary valve 3 slides an end rounding 10 of the leaf spring 4 along a stepped edge 9 of the Rotary slide 3. This will inevitably during the rotation adjusting friction between the leaf spring 4 and rotary valve 3 is reduced.
  • the Leaf spring 4 is not attached to the contact protection lower part 2, but on the rotary valve 3 (inserted) is - for example, via suitable ribs - and with their free End resiliently against the wall (or against a stepped edge of this wall) of the contact protection lower part 2 presses.
  • Fig. 4 is a view of the back of the socket insert 1 with contact protection device first embodiment shown. It is the special design the contact protection lower part 2 with central pin 6, locking connection 7, ribs 8 and plug openings 11 can be seen. Between the side wall of the contact protection base 2 and the ribs 8 is a recess 12 for receiving a Bending the leaf spring 4 is provided.
  • Fig. 5 is designed as a leaf spring 4 return spring of the contact protection device first embodiment shown.
  • the Leaf spring 4 at one end a rounding 10 and at its opposite End of the fixing serving a bend 14, which in the inserted state prevents displacement in the longitudinal direction.
  • a taper 13 serves for equalization the stress distribution occurring during the bending within the leaf spring 4.
  • Fig. 6 is a contact protection cover 5 of the contact protection device first Embodiment shown.
  • plug openings 15 for carrying out the Plug pins of a plug and a central bore 16 for locking with the Detent locking connection 7 of the pin 6 of the contact protection lower part 2.
  • the Outer contour of the contact protection cover 5 is the outer contour of the contact protection lower part 2 adapted and engages latching on this outer contour.
  • Fig. 7 is a view of the top of a rotary valve 3 is shown.
  • There are one for engagement of the pin 6 of the contact protection base 2 suitable central bore 17 and the friction reduction serving offset edge 9 can be seen.
  • Fig. 8 is a view of the underside of a rotary valve 3 is shown.
  • engagement recesses 19 for the connector pins to recognize a plug.
  • These engagement recesses 19 are each referred to as "inclined planes" designed to the rotational movement of the rotary valve 3 with engaging connector pins to initiate and carry out.
  • the edge of the engagement recesses 19 are each with provided offset edges 20.
  • the contact protection lower part 2 As can be seen from Figures 1 to 8 described above, the contact protection lower part 2, the rotary valve 3 and the contact protection cover. 4 Symmetrically designed - see, for example, the double provided ribs 8 or the two-fold remote edges 9, which has the great advantage that at fully automatic installation of the contact protection device or the installation device does not have to pay attention to the special orientation of these parts.
  • Fig. 9 is a contact protection device according to a second embodiment shown. It is the back of a socket insert 21 (C-disk) one Earthing contact socket to recognize, with at this back a contact protection lower part 22 formed - preferably integrally formed - is.
  • a linear slide 23 - generally a safety slide - as well a formed as a V-shaped leaf spring 24 return spring in the contact protection lower part 22 introduced.
  • the leaf spring 24 is movable between the inner wall the contact protection lower part 22 and the linear slide 23 are arranged.
  • a on the contact protection lower part 22 attachable and snap-on touch protection cover (not shown) serves to seal the contact protection device.
  • the linear slide 23 is longitudinally movable on a centrally in the Contact protection lower part 22 located pin 25 mounted, said pin 25 engages in a central opening 28 of the linear slider 23.
  • side walls 29 of the linear slide are longitudinal Side walls of the contact protection lower part 22 out.
  • One at the end of this Pin 25 arranged latching connection 26 is used for locking the patch contact protection cover.
  • the leaf spring 24 is in its central portion by centered within the contact protection lower part 2 arranged ribs 27. The two Ends of the leaf spring 24 press resiliently against the linear slide 3, that As a result, introduced in the socket insert 21 plug openings for introduction are closed by connector pins of a plug by means of the linear slide 23.
  • cams 36, 37 In addition to the central opening 28 a total of three cams 36, 37 are provided, wherein two cams 37 are symmetrical opposite. These cams 36, 37 provide one defined minimum distance between linear slide 23 and contact protection cover for sure. As a result, a rocking or tilting of the linear slide 23rd transverse to its longitudinal direction (direction of longitudinal movement) in one-sided loaded Linear slide 23 allows.
  • Fig. 10 is formed as a leaf spring return spring of the contact protection device shown according to the second embodiment.
  • the symmetrically designed leaf spring 24 has at its two ends rounded portions 30, which is a low-friction Allow sliding along the end face of the linear slide 23. Rejuvenations 31 Both sides of the central contact surface 32 of the leaf spring are used for equalization the stress distribution occurring during bending within the leaf spring 24.
  • the symmetrical design of the leaf spring 24 facilitates assembly, since on the proper alignment does not have to be respected.
  • FIG. 11 is a view of the underside of a linear slide 23 of the contact protection device shown according to the second embodiment.
  • engagement recesses 33 for the plug pins of a plug to recognize.
  • These engagement recesses 33 are each designed as "inclined planes", to the linear movement of the linear slide 3 with engaging connector pins to initiate and carry out.
  • the engagement recesses 33 are each offset Provided edges 34.
  • a rotational movement of the linear slide 23 is guided by the side walls 29 within the contact protection base 22 prevented.
  • In the same way and Way serve formed on the underside of the linear slide 23 and in corresponding Troughs of the contact protection base 22 guided cam 35 of the precise Guiding the linear slide 23 during a longitudinal movement and the ligation of rotational movements of the linear slide.
  • leaf springs 4, 24 separate, einaryde (preferably spring steel existing) components are.
  • this Leaf springs 4 and 24 as (made of spring steel) insert parts directly to the rotary valve 3 or to the contact protection lower part 2 or directly to the linear slide 23 or to the contact protection lower part 22 with inject.
  • This has the big one Advantage that during assembly to handle only one component instead of two components is what is particularly important in a fully automatic assembly of importance.
  • the leaf springs 4, 24 made of the same plastic material form, from which also the rotary valve 3 and the linear slide 23 and the Contact protection lower parts 2, 22 exist, d. H. the leaf spring is in one piece on Protective slide or lower part formed. Furthermore, also 2-component technology (Two-component injection molding) usable, d. H. the leaf spring 4, 24 is indeed also integrally formed on the safety slide or lower part, but it is made another optimized with regard to the desired resilient properties Plastic material.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Cable Accessories (AREA)
  • Connecting Device With Holders (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The device has a lower contact protection part (2) formed on the rear of the socket insert (1) in which a spring-loaded sliding protective element (3) is inserted that closes plug pin insertion openings and only frees the openings for simultaneous engagement of both plug pins. A flat spring (4) acts as a restoring spring for the sliding element and is arranged movably between the inner wall of the lower protection part and the sliding element.

Description

Die Erfindung bezieht sich auf eine Berührungsschutzvorrichtung für eine Schutzkontakt-Steckdose gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung kann beispielsweise bei Unterputz-Steckdosen verwendet werden.The invention relates to a contact protection device for a protective contact socket according to the preamble of claim 1. The invention may, for example be used with flush-mounted sockets.

Eine derartige Berührungsschutzvorrichtung für eine Schutzkontakt-Steckdose ist aus der DE 914 991 C die als nächst liegender Stand der Technik angesehen wird, bekannt. Bei der bekannten Steckdose mit Verriegelungseinrichtung gegen einpoliges Einführen eines Steckers sind zwei übereinander angeordnete Schieber vorgesehen, die durch eine gemeinsame Achse miteinander verbunden sind, wobei die Achse in Längsnuten unter Gegendruck einer doppelarmigen Blattfeder verschiebbar gelagert ist. Hierdurch wird eine Manipulation an der Steckdose unterbunden.Such a contact protection device for a protective contact socket is off DE 914 991 C, which is considered to be the closest prior art, is known. In the known socket with locking device against unipolar insertion of a plug are two superposed slide provided, which are interconnected by a common axis, wherein the axis in longitudinal grooves under counter-pressure of a double-armed leaf spring displaceable is stored. As a result, a manipulation of the socket is prevented.

Handelsübliche Steckdosen mit erhöhtem Berührungsschutz entsprechen der E DIN VDE 0624-1, wobei der erhöhte Berührungsschutz durch Verwendung eines Schutzschieber verwirklicht wird. Dieser Schutzschieber schirmt automatisch die spannungsführenden Kontakte der Steckdose ab, sobald der Stecker aus der Steckdose herausgezogen wird. Der Berührungsschutz ist so beschaffen, dass er nicht in einfacher Art und Weise durch Einführen von anderen Gegenständen als Steckern in die Steckdose umgangen werden kann. Beim Einführen eines geeigneten Steckers wird der Berührungsschutz über eine "schiefe Ebene" geöffnet und die Steckerstifte kommen ordnungsgemäß mit den spannungsführenden Kontakten der Steckdose in Berührung. Beim Herausziehen des Steckers drückt eine Rückstellfeder den Berührungsschutz zurück in seine die Steckeröffnungen verschließende, schützende Position.Commercially available sockets with increased contact protection correspond to E DIN VDE 0624-1, whereby the increased contact protection by using a protective slide is realized. This safety gate automatically shields the live ones Disconnect the contacts from the socket as soon as the plug is pulled out of the socket becomes. The contact protection is such that it is not in a simple way and way by inserting items other than plugs into the socket can be bypassed. When inserting a suitable plug, the contact protection opened over a "sloping plane" and the pins come properly with the live contacts of the socket in touch. When pulling out the plug, a return spring pushes the contact protection back into its protective openings closing the plug openings.

Vielfach ist die Rückstellfeder dabei als Spiralfeder, Blockfeder oder Drehfeder ausgeführt. Bei vollautomatisierter Montage von Steckdosen neigen derartige Federn jedoch dazu, sich ineinander zu verdrehen, was ein Separieren der Federn (Vereinzelung) erforderlich macht und somit eine vollautomatische Montage sehr erschwert. Des weiteren ist es vielfach notwendig, die Rückstellfedern mit einer gewissen Vorspannung in die Berührungsschutzvorrichtung einzusetzen, was gerade bei Spiralfedern zu Schwierigkeiten hinsichtlich der Handhabung führt.In many cases, the return spring is designed as a spiral spring, block spring or torsion spring. In fully automated installation of sockets tend such springs to twist each other, which required a separation of the springs (singulation) makes and thus a fully automatic assembly very difficult. Furthermore It is often necessary to use the return springs with a certain bias in to use the contact protection device, which is difficult for coil springs in terms of handling leads.

Beispiele für die vorstehend erwähnten bekannten Kinderschutzeinrichtungen bzw. Berührungsschutzvorrichtung sind in der DE 198 49 883 A1 und der EP 0 512 208 B1 zu finden.Examples of the aforementioned known child protection devices or contact protection device are in DE 198 49 883 A1 and EP 0 512 208 B1 to Find.

Der Erfindung liegt die Aufgabe zugrunde, eine Berührungsschutzvorrichtung für eine Schutzkontakt-Steckdose der eingangs genannten Art anzugeben, welche vollautomatisch montierbar ist.The invention has for its object to provide a contact protection device for a Specify grounded power outlet of the type mentioned, which fully automatically can be mounted.

Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffes erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved in conjunction with the features of the preamble according to the invention solved by the features specified in the characterizing part of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß bei der vorgeschlagenen Berührungsschutzvorrichtung die Anzahl der verwendeten Teile sowie die Teile- und die Montagekosten sehr gering gehalten werden. Die als Blattfeder ausgebildete Rückstellfeder ist sehr einfach mit gewünschter Vorspannung in die Berührungsschutzvorrichtung einlegbar. Die während der vollautomatischen Montage zugeführten Blattfedern neigen nicht zur Verdrehung bzw. Verhakung ineinander.The achievable with the present invention consist in particular that in the proposed contact protection device, the number of parts used as well the parts and assembly costs are kept very low. The trained as a leaf spring Return spring is very easy with desired bias in the contact protection device inserted. The supplied during the fully automatic assembly Leaf springs do not tend to twist or hook into each other.

Weitere Vorteile sind aus der nachstehenden Beschreibung ersichtlich.Further advantages will be apparent from the following description.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are characterized in the subclaims.

Die Erfindung wird nachstehend anhand der in der Zeichnung dargestellten Ausführungsbeispiele erläutert. Es zeigen:

Fig.1
eine prinzipielle Darstellung der Komponenten der Berührungsschutzvorrichtung gemäß einer ersten Ausführungsform,
Fig. 2
die Berührungsschutzvorrichtung gemäß Fig. 1 in geschlossener Position,
Fig. 3
die Berührungsschutzvorrichtung gemäß Fig. 1 in geöffneter Position,
Fig. 4
eine Sicht auf die Rückseite eines Steckdoseneinsatzes mit Berührungsschutzvorrichtung erster Ausführungsform,
Fig. 5
eine Blattfeder der Berührungsschutzvorrichtung erster Ausführungsform,
Fig. 6
eine Berührungsschutz-Abdeckung der Berührungsschutzvorrichtung erster Ausführungsform,
Fig. 7
eine Sicht auf die Oberseite eines Drehschiebers,
Fig. 8
eine Sicht auf die Unterseite eines Drehschiebers,
Fig. 9
eine Berührungsschutzvorrichtung gemäß einer zweiten Ausführungsform,
Fig. 10
eine Blattfeder der Berührungsschutzvorrichtung gemäß zweiter Ausführungsform,
Fig. 11
eine Sicht auf die Unterseite eines Linearschiebers der Berührungsschutzvorrichtung gemäß zweiter Ausführungsform.
The invention will be explained below with reference to the embodiments illustrated in the drawings. Show it:
Fig.1
a schematic representation of the components of the contact protection device according to a first embodiment,
Fig. 2
the contact protection device according to FIG. 1 in the closed position,
Fig. 3
the contact protection device according to FIG. 1 in the open position,
Fig. 4
a view of the back of a socket insert with contact protection device of the first embodiment,
Fig. 5
a leaf spring of the contact protection device of the first embodiment,
Fig. 6
a contact protection cover of the contact protection device of the first embodiment,
Fig. 7
a view of the top of a rotary valve,
Fig. 8
a view of the underside of a rotary valve,
Fig. 9
a contact protection device according to a second embodiment,
Fig. 10
a leaf spring of the contact protection device according to the second embodiment,
Fig. 11
a view of the underside of a linear slide of the contact protection device according to the second embodiment.

In Fig. 1 ist eine prinzipielle Darstellung der Komponenten der Berührungsschutzvorrichtung gemäß einer ersten Ausführungsform dargestellt. Es ist die Rückseite eines Steckdoseneinsatzes 1 (C-Scheibe) einer Schutzkontakt-Steckdose zu erkennen, wobei an dieser Rückseite ein Berührungsschutz-Unterteil 2 ausgebildet - vorzugsweise einstückig angeformt - ist. Als spezielle Baukomponenten sind ein Drehschieber 3 - allgemein ein Schutzschieber - sowie eine als Blattfeder 4 ausgebildete Rückstellfeder im Berührungsschutz-Unterteil 2 eingebracht. Die Blattfeder 4 ist beweglich zwischen Innenwandung des Berührungsschutz-Unterteils 2 und dem Drehschieber 3 angeordnet. Eine auf das Berührungsschutz-Unterteil 2 aufsetzbare und aufrastbare Berührungschutz-Abdeckung 5 dient zum Verschluß der Berührungsschutzvorrichtung.In Fig. 1 is a schematic representation of the components of the contact protection device shown according to a first embodiment. It is the back of one Socket insert 1 (C-disc) to recognize a protective contact socket, wherein formed on this back a contact protection lower part 2 - preferably integrally formed - is. As special components are a rotary valve 3 - in general, a safety slide - as well as a leaf spring 4 formed as a return spring introduced in the contact protection lower part 2. The leaf spring 4 is movable between Inner wall of the contact protection lower part 2 and the rotary valve 3 is arranged. An attachable to the contact protection base 2 and snap-on touch protection cover 5 serves to seal the contact protection device.

In Fig. 2 ist die Berührungsschutzvorrichtung gemäß Fig. 1 in geschlossener Position - d. h. ohne eingeführte Steckerstifte eines Steckers - dargestellt. Wie zu erkennen ist, ist der Drehschieber 3 drehbeweglich auf einem zentral im Berührungsschutz-Unterteil 2 befindlichen Zapfen 6 aufgesetzt. Eine am Ende dieses Zapfens 6 angeordnete Rastverbindung 7 dient zum Verrasten der aufgesetzten Berührungschutz-Abdeckung 5. Die Blattfeder 4 wird an ihrem einen Ende durch innerhalb des Berührungsschutz-Unterteils 2 angeordnete Rippen 8 fixiert. Das freie Ende der Blattfeder 4 drückt federnd derart gegen den Drehschieber 3, daß hierdurch die im Steckdoseneinsatz 1 eingebrachten Steckeröffnungen zur Einführung von Steckerstiften eines Steckers mittels des Drehschiebers 3 verschlossen sind.2, the contact protection device according to FIG. 1 in the closed position - d. H. without inserted plug pins of a plug - shown. As you can see, the rotary valve 3 is rotatable on a central in the contact protection lower part 2 located pin 6 is placed. One arranged at the end of this pin 6 Latching 7 is used for locking the patch contact protection cover 5. The leaf spring 4 is at one end by within the contact protection base 2 arranged ribs 8 fixed. The free end of the leaf spring 4 presses resiliently so against the rotary valve 3, that thereby the in the socket insert. 1 introduced plug openings for the introduction of plug pins of a plug by means of the rotary valve 3 are closed.

In Fig. 3 ist die Berührungsschutzvorrichtung gemäß Fig. 1 in geöffneter Position dargestellt. In dieser Stellung ist infolge des gleichzeitigen Eingriffes der Steckerstifte eines Steckers in die Steckeröffnungen 11 der drehbewegliche Drehschieber 3 derart gegen die Federkraft der Blattfeder 4 um den Zapfen 6 geschwenkt, daß hierdurch die Stekkeröffnungen 11 frei liegen. Während der Drehbewegung des Drehschiebers 3 gleitet eine endseitige Abrundung 10 der Blattfeder 4 längs einer abgesetzten Kante 9 des Drehschiebers 3. Hierdurch wird die sich während der Drehbewegung zwangsläufig einstellende Reibung zwischen Blattfeder 4 und Drehschieber 3 vermindert.In Fig. 3, the contact protection device according to FIG. 1 is shown in the open position. In this position, due to the simultaneous engagement of the connector pins of a Plug in the plug openings 11 of the rotatable rotary valve 3 against the spring force of the leaf spring 4 pivoted about the pin 6, that thereby the Stekkeröffnungen 11 are free. During the rotational movement of the rotary valve 3 slides an end rounding 10 of the leaf spring 4 along a stepped edge 9 of the Rotary slide 3. This will inevitably during the rotation adjusting friction between the leaf spring 4 and rotary valve 3 is reduced.

Abweichend von den vorstehenden Ausführungsformen ist es auch möglich, daß die Blattfeder 4 nicht am Berührungsschutz-Unterteil 2, sondern am Drehschieber 3 befestigt (eingelegt) wird - beispielsweise über geeignete Rippen - und mit ihrem freien Ende federnd gegen die Wandung (bzw. gegen eine abgesetzte Kante dieser Wandung) des Berührungsschutz-Unterteils 2 drückt.Notwithstanding the above embodiments, it is also possible that the Leaf spring 4 is not attached to the contact protection lower part 2, but on the rotary valve 3 (inserted) is - for example, via suitable ribs - and with their free End resiliently against the wall (or against a stepped edge of this wall) of the contact protection lower part 2 presses.

In Fig. 4 ist eine Sicht auf die Rückseite des Steckdoseneinsatzes 1 mit Berührungsschutzvorrichtung erster Ausführungsform dargestellt. Es ist die spezielle Gestaltung des Berührungsschutz-Unterteiles 2 mit zentralem Zapfen 6, Rastverbindung 7, Rippen 8 und Steckeröffnungen 11 zu erkennen. Zwischen der Seitenwandung des Berührungsschutz-Unterteils 2 und den Rippen 8 ist eine Aussparung 12 zur Aufnahme einer Abwinkelung der Blattfeder 4 vorgesehen.In Fig. 4 is a view of the back of the socket insert 1 with contact protection device first embodiment shown. It is the special design the contact protection lower part 2 with central pin 6, locking connection 7, ribs 8 and plug openings 11 can be seen. Between the side wall of the contact protection base 2 and the ribs 8 is a recess 12 for receiving a Bending the leaf spring 4 is provided.

In Fig. 5 ist eine als Blattfeder 4 ausgebildete Rückstellfeder der Berührungsschutzvorrichtung erster Ausführungsform dargestellt. Wie vorstehend bereits erwähnt, weist die Blattfeder 4 an ihrem einen Ende eine Abrundung 10 und an ihrem entgegengesetzten Ende eine der Fixierung dienende Abwinkelung 14 auf, welche im eingelegten Zustand ein Verschieben in Längsrichtung verhindert. Eine Verjüngung 13 dient zur Vergleichmäßigung der während der Biegung innerhalb der Blattfeder 4 auftretenden Spannungsverteilung.In Fig. 5 is designed as a leaf spring 4 return spring of the contact protection device first embodiment shown. As already mentioned above, the Leaf spring 4 at one end a rounding 10 and at its opposite End of the fixing serving a bend 14, which in the inserted state prevents displacement in the longitudinal direction. A taper 13 serves for equalization the stress distribution occurring during the bending within the leaf spring 4.

In Fig. 6 ist eine Berührungsschutz-Abdeckung 5 der Berührungsschutzvorrichtung erster Ausführungsform dargestellt. Es sind Steckeröffnungen 15 zur Durchführung der Steckerstifte eines Steckers sowie eine zentrale Bohrung 16 zur Verrastung mit der Rastverbindung 7 des Zapfens 6 des Berührungsschutz-Unterteils 2 zu erkennen. Die Außenkontur der Berührungsschutz-Abdeckung 5 ist der Außenkontur des Berührungsschutz-Unterteils 2 angepaßt und greift rastend über diese Außenkontur.In Fig. 6 is a contact protection cover 5 of the contact protection device first Embodiment shown. There are plug openings 15 for carrying out the Plug pins of a plug and a central bore 16 for locking with the Detent locking connection 7 of the pin 6 of the contact protection lower part 2. The Outer contour of the contact protection cover 5 is the outer contour of the contact protection lower part 2 adapted and engages latching on this outer contour.

In Fig. 7 ist eine Sicht auf die Oberseite eines Drehschiebers 3 dargestellt. Es sind eine zum Eingriff des Zapfens 6 des Berührungsschutz-Unterteils 2 geeignete Zentralbohrung 17 sowie die der Reibungs-Verminderung dienende abgesetzte Kante 9 zu erkennen. Neben der Zentralbohrung 17 und senkrecht zur Längsachse des Drehschiebers 3 sind zwei sich gegenüberliegende Nocken 18 vorgesehen. Diese Nocken 18 stellen einen definierten Mindestabstand zwischen Drehschieber 3 und Berührungsschutz-Abdeckung 5 sicher. Hierdurch wird ein Wippen des Drehschiebers in seiner Längsrichtung bei einseitig belastetem Drehschieber 3 ermöglicht.In Fig. 7 is a view of the top of a rotary valve 3 is shown. There are one for engagement of the pin 6 of the contact protection base 2 suitable central bore 17 and the friction reduction serving offset edge 9 can be seen. In addition to the central bore 17 and perpendicular to the longitudinal axis of the rotary valve. 3 two opposing cams 18 are provided. These cams 18 ask a defined minimum distance between rotary valve 3 and contact protection cover 5 for sure. This causes a rocking of the rotary valve in its longitudinal direction allows for one-sided loaded rotary valve 3.

In Fig. 8 ist eine Sicht auf die Unterseite eines Drehschiebers 3 dargestellt. Es sind beidseitig der Zentralbohrung 17 angeordnete Eingriffmulden 19 für die Steckerstifte eines Steckers zu erkennen. Diese Eingriffmulden 19 sind jeweils als "schiefe Ebenen" ausgebildet, um die Drehbewegung des Drehschiebers 3 bei eingreifenden Steckerstiften einzuleiten und durchzuführen. Randseitig sind die Eingriffmulden 19 jeweils mit abgesetzten Kanten 20 versehen. Bei einseitig belastetem Drehschieber 3 - d. h. nur gegen eine der beiden Eingriffmulden 19 drückt ein durch eine der Steckeröffnungen 11 eingeführter Stift - wippt bzw. kippt der Drehschieber 3 über die vorstehend erwähnten Nocken 18, so daß eine der abgesetzten Kanten 20 in die freie Steckeröffnung 11 eingreift und dort verrastet. Eine Drehbewegung des Drehschiebers 3 wird somit wirksam unterbunden und die Steckeröffnungen bleiben verschlossen.In Fig. 8 is a view of the underside of a rotary valve 3 is shown. There are On both sides of the central bore 17 arranged engagement recesses 19 for the connector pins to recognize a plug. These engagement recesses 19 are each referred to as "inclined planes" designed to the rotational movement of the rotary valve 3 with engaging connector pins to initiate and carry out. The edge of the engagement recesses 19 are each with provided offset edges 20. For one-sided loaded rotary valve 3 - d. H. just against one of the two engagement recesses 19 presses through one of the plug openings Inserted pin 11 - tilts or tilts the rotary valve 3 on the above-mentioned Cams 18, so that one of the offset edges 20 in the free plug opening 11 engages and locked there. A rotational movement of the rotary valve 3 is thus effectively prevented and the plug openings remain closed.

Wie aus den vorstehend beschriebenen Figuren 1 bis 8 zu erkennen ist, sind das Berührungsschutz-Unterteil 2, der Drehschieber 3 und die Berührungschutz-Abdeckung 4 symmetrisch gestaltet - siehe beispielsweise die zweifach vorgesehenen Rippen 8 oder die zweifach vorhanden abgesetzten Kanten 9, was den großen Vorteil hat, daß bei vollautomatischer Montage der Berührungsschutzvorrichtung bzw. des Installationsgerätes nicht auf die spezielle Ausrichtung dieser Teile geachtet werden muß.As can be seen from Figures 1 to 8 described above, the contact protection lower part 2, the rotary valve 3 and the contact protection cover. 4 Symmetrically designed - see, for example, the double provided ribs 8 or the two-fold remote edges 9, which has the great advantage that at fully automatic installation of the contact protection device or the installation device does not have to pay attention to the special orientation of these parts.

In Fig. 9 ist eine Berührungsschutzvorrichtung gemäß einer zweiten Ausführungsform dargestellt. Es ist die Rückseite eines Steckdoseneinsatzes 21 (C-Scheibe) einer Schutzkontakt-Steckdose zu erkennen, wobei an dieser Rückseite ein Berührungsschutz-Unterteil 22 ausgebildet - vorzugsweise einstückig angeformt - ist. Als spezielle Baukomponenten sind ein Linearschieber 23 - allgemein ein Schutzschieber - sowie eine als V-förmig gebogene Blattfeder 24 ausgebildete Rückstellfeder im Berührungsschutz-Unterteil 22 eingebracht. Die Blattfeder 24 ist beweglich zwischen Innenwandung des Berührungsschutz-Unterteils 22 und dem Linearschieber 23 angeordnet. Eine auf das Berührungsschutz-Unterteil 22 aufsetzbare und aufrastbare Berührungschutz-Abdeckung (nicht dargestellt) dient zum Verschluß der Berührungsschutzvorrichtung.In Fig. 9 is a contact protection device according to a second embodiment shown. It is the back of a socket insert 21 (C-disk) one Earthing contact socket to recognize, with at this back a contact protection lower part 22 formed - preferably integrally formed - is. As special Building components are a linear slide 23 - generally a safety slide - as well a formed as a V-shaped leaf spring 24 return spring in the contact protection lower part 22 introduced. The leaf spring 24 is movable between the inner wall the contact protection lower part 22 and the linear slide 23 are arranged. A on the contact protection lower part 22 attachable and snap-on touch protection cover (not shown) serves to seal the contact protection device.

Wie gut zu erkennen, ist der Linearschieber 23 längsbeweglich auf einem zentral im Berührungsschutz-Unterteil 22 befindlichen Zapfen 25 aufgesetzt, wobei dieser Zapfen 25 in eine zentrale Öffnung 28 des Linearschiebers 23 eingreift. Bei der Längsbewegung des Linearschiebers 23 werden Seitenwandungen 29 des Linearschiebers längs Seitenwandungen des Berührungsschutz-Unterteils 22 geführt. Eine am Ende dieses Zapfens 25 angeordnete Rastverbindung 26 dient zum Verrasten der aufgesetzten Berührungschutz-Abdeckung. Die Blattfeder 24 wird in ihrem mittleren Abschnitt durch innerhalb des Berührungsschutz-Unterteils 2 angeordnete Rippen 27 zentriert. Die beiden Enden der Blattfeder 24 drücken federnd derart gegen den Linearschieber 3, daß hierdurch die im Steckdoseneinsatz 21 eingebrachten Steckeröffnungen zur Einführung von Steckerstiften eines Steckers mittels des Linearschiebers 23 verschlossen sind.As can be clearly seen, the linear slide 23 is longitudinally movable on a centrally in the Contact protection lower part 22 located pin 25 mounted, said pin 25 engages in a central opening 28 of the linear slider 23. In the longitudinal movement of the linear slide 23, side walls 29 of the linear slide are longitudinal Side walls of the contact protection lower part 22 out. One at the end of this Pin 25 arranged latching connection 26 is used for locking the patch contact protection cover. The leaf spring 24 is in its central portion by centered within the contact protection lower part 2 arranged ribs 27. The two Ends of the leaf spring 24 press resiliently against the linear slide 3, that As a result, introduced in the socket insert 21 plug openings for introduction are closed by connector pins of a plug by means of the linear slide 23.

Neben der zentralen Öffnung 28 sind insgesamt drei Nocken 36, 37 vorgesehen, wobei sich zwei Nocken 37 symmetrisch gegenüberliegen. Diese Nocken 36, 37 stellen einen definierten Mindestabstand zwischen Linearschieber 23 und Berührungsschutz-Abdeckung sicher. Hierdurch wird ein Wippen bzw. Kippen des Linearschiebers 23 quer zu seiner Längsrichtung (Richtung der Längsbewegung) bei einseitig belastetem Linearschieber 23 ermöglicht.In addition to the central opening 28 a total of three cams 36, 37 are provided, wherein two cams 37 are symmetrical opposite. These cams 36, 37 provide one defined minimum distance between linear slide 23 and contact protection cover for sure. As a result, a rocking or tilting of the linear slide 23rd transverse to its longitudinal direction (direction of longitudinal movement) in one-sided loaded Linear slide 23 allows.

In Fig. 10 ist eine als Blattfeder ausgebildete Rückstellfeder der Berührungsschutzvorrichtung gemäß zweiter Ausführungsform dargestellt. Die symmetrisch gestaltete Blattfeder 24 weist an ihren beiden Enden Abrundungen 30 auf, welche ein reibungsarmes Gleiten längs der Stirnfläche des Linearschiebers 23 ermöglichen. Verjüngungen 31 beidseitig der zentralen Anlagefläche 32 der Blattfeder dienen zur Vergleichmäßigung der während der Biegung innerhalb der Blattfeder 24 auftretenden Spannungsverteilung. Die symmetrische Ausbildung der Blattfeder 24 erleichtert die Montage, da auf die richtige Ausrichtung nicht geachtet werden muß.In Fig. 10 is formed as a leaf spring return spring of the contact protection device shown according to the second embodiment. The symmetrically designed leaf spring 24 has at its two ends rounded portions 30, which is a low-friction Allow sliding along the end face of the linear slide 23. Rejuvenations 31 Both sides of the central contact surface 32 of the leaf spring are used for equalization the stress distribution occurring during bending within the leaf spring 24. The symmetrical design of the leaf spring 24 facilitates assembly, since on the proper alignment does not have to be respected.

Abweichend von der in Fig. 9 gezeigten Ausführungsform ist es auch möglich, die Blattfeder 24 um 180° gedreht in die Berührungsschutzvorrichtung einzulegen, d. h. die zentrale Anlagefläche 32 drückt dann gegen die Stirnfläche des Linearschiebers 23 und die endseitigen Abrundungen 30 drücken gegen die Wandung des Berührungsschutz-Unterteils 22. Diese Variante ist insbesondere dann sinnvoll, wenn die Blattfeder direkt an den Linearschieber 23 angespritzt werden soll, wie weiter unten ausgeführt ist.Unlike the embodiment shown in FIG. 9, it is also possible to use the Leaf spring 24 rotated by 180 ° in the contact protection device insert, d. H. the central contact surface 32 then presses against the end face of the linear slide 23 and the end-side rounded portions 30 press against the wall of the contact protection lower part 22. This variant is particularly useful if the leaf spring directly is to be molded onto the linear slide 23, as explained below.

In Fig. 11 ist eine Sicht auf die Unterseite eines Linearschiebers 23 der Berührungsschutzvorrichtung gemäß zweiter Ausführungsform dargestellt. Es sind beidseitig der zentralen Öffnung 28 angeordnete Eingriffmulden 33 für die Steckerstifte eines Stekkers zu erkennen. Diese Eingriffmulden 33 sind jeweils als "schiefe Ebenen" ausgebildet, um die Linearbewegung des Linearschiebers 3 bei eingreifenden Steckerstiften einzuleiten und durchzuführen. Randseitig sind die Eingriffmulden 33 jeweils mit abgesetzten Kanten 34 versehen. Bei einseitig belastetem Linearschieber 23 - d. h. nur gegen eine der beiden Eingriffmulden 33 drückt ein durch eine der Steckeröffnungen eingeführter Stift - wippt bzw. kippt der Linearschieber 23 über die vorstehend erwähnten Nocken 36, 37, so daß eine der abgesetzten Kanten 34 in die freie Steckeröffnung eingreift und dort verrastet. Eine Linearbewegung des Linearschiebers 23 wird somit wirksam unterbunden und die Steckeröffnungen bleiben verschlossen.In Fig. 11 is a view of the underside of a linear slide 23 of the contact protection device shown according to the second embodiment. There are two sides of the central opening 28 arranged engagement recesses 33 for the plug pins of a plug to recognize. These engagement recesses 33 are each designed as "inclined planes", to the linear movement of the linear slide 3 with engaging connector pins to initiate and carry out. On the edge side, the engagement recesses 33 are each offset Provided edges 34. With one-sided loaded linear slide 23 - d. H. only for one of the two engagement recesses 33 pushes an inserted through one of the plug openings Pin - tilts or tilts the linear slider 23 on the above-mentioned Cams 36, 37, so that one of the offset edges 34 engages in the free plug opening and locked there. A linear movement of the linear slide 23 is thus effective prevented and the plug openings remain closed.

Eine Drehbewegung des Linearschiebers 23 wird durch die Führung der Seitenwandungen 29 innerhalb des Berührungsschutz-Unterteils 22 verhindert. In gleicher Art und Weise dienen an der Unterseite des Linearschiebers 23 ausgebildete und in entsprechenden Mulden des Berührungsschutz-Unterteils 22 geführte Nocken 35 der präzisen Führung des Linearschiebers 23 während einer Längsbewegung und der Unterbindung von Drehbewegungen des Linearschiebers.A rotational movement of the linear slide 23 is guided by the side walls 29 within the contact protection base 22 prevented. In the same way and Way serve formed on the underside of the linear slide 23 and in corresponding Troughs of the contact protection base 22 guided cam 35 of the precise Guiding the linear slide 23 during a longitudinal movement and the ligation of rotational movements of the linear slide.

Bei den vorstehend beschriebenen Ausführungsformen wird beispielhaft davon ausgegangen, daß die Blattfedern 4, 24 separate, einzulegende (vorzugsweise aus Federstahl bestehende) Bauteile sind. In Abweichung hiervon ist es auch möglich, diese Blattfedern 4 bzw. 24 als (aus Federstahl bestehende) Insert-Teile direkt an den Drehschieber 3 oder an das Berührungsschutz-Unterteil 2 bzw. direkt an den Linearschieber 23 oder an das Berührungsschutz-Unterteil 22 mit einzuspritzen. Dies hat den großen Vorteil, daß bei der Montage nur ein Bauteil an Stelle von zwei Bauteilen zu handhaben ist, was insbesondere bei einer vollautomatischen Montage von Wichtigkeit ist.In the embodiments described above, it is assumed by way of example that the leaf springs 4, 24 separate, einzulegende (preferably spring steel existing) components are. In deviation from this, it is also possible to do this Leaf springs 4 and 24 as (made of spring steel) insert parts directly to the rotary valve 3 or to the contact protection lower part 2 or directly to the linear slide 23 or to the contact protection lower part 22 with inject. This has the big one Advantage that during assembly to handle only one component instead of two components is what is particularly important in a fully automatic assembly of importance.

Desgleichen ist es möglich die Blattfedern 4, 24 aus dem gleichen Kunststoffmaterial auszubilden, aus dem auch der Drehschieber 3 bzw. der Linearschieber 23 bzw. die Berührungsschutz-Unterteile 2, 22 bestehen, d. h. die Blattfeder ist einstückig am Schutzschieber bzw. Unterteil angeformt. Des weiteren ist auch 2-Komponenten-Technik (Zweikomponentenspritzguß) verwendbar, d. h. die Blattfeder 4, 24 ist zwar ebenfalls einstückig am Schutzschieber bzw. Unterteil angeformt, besteht jedoch aus einem anderen, hinsichtlich der gewünschten federnden Eigenschaften optimiertem Kunststoffmaterial.Likewise, it is possible the leaf springs 4, 24 made of the same plastic material form, from which also the rotary valve 3 and the linear slide 23 and the Contact protection lower parts 2, 22 exist, d. H. the leaf spring is in one piece on Protective slide or lower part formed. Furthermore, also 2-component technology (Two-component injection molding) usable, d. H. the leaf spring 4, 24 is indeed also integrally formed on the safety slide or lower part, but it is made another optimized with regard to the desired resilient properties Plastic material.

Claims (13)

  1. A shock-hazard protection apparatus for a socket insert of a grounding-type receptacle, with a lower part (2, 22) for shock-hazard protection being formed on the rear side of the socket insert (1, 21), in which a spring-loaded protective slide is introduced which closes off the socket openings (11) as provided in the socket insert for introducing plug pins of a plug and only opens said socket openings in the case of simultaneous engagement of both plug pins, with a leaf spring (4, 24) being used as a resetting spring of the protective slide (3, 23) and being movable between the inner wall of the lower part (2, 22) of the shock-hazard protection and the protective slide (3, 23), characterized in that a latch-down shock-hazard protection cover (5) is used for closing off the shock-hazard protection apparatus, with
    said shock-hazard protection cover (5) comprising socket openings (15) for the plug pins;
    a pin (6, 25) with a latching connection (7, 26) arranged at the end being situated centrally in the lower part (2, 22) of the shock-hazard protection;
    the shock-hazard protection cover (5) comprising a central bore (16) for latching with the latching connection (7, 26) of the pin (6, 25) of the lower part (2, 22) of the shock-hazard protection, and
    the outside shape of the shock-hazard protection cover (5) being adapted to the outside shape of the lower part (2, 22) of the shock-hazard protection and engaging in a latching manner through said outside shape.
  2. A shock-hazard protection apparatus according to claim 1, characterized in that the leaf spring (4, 24) is configured as a component which can be inserted separately and preferably consists of spring steel.
  3. A shock-hazard protection apparatus according to claim 1, characterized in that the leaf spring (4, 24) is configured as an injected insert part of the lower part (2, 22) of the shock-hazard protection or the protective slide (3, 23), which insert part preferably consists of spring steel.
  4. A shock-hazard protection apparatus according to claim 1, characterized in that the leaf spring (4, 24) is formed integrally on the lower part (2, 22) of the shock-hazard protection or on the protective slide (3, 23).
  5. A shock-hazard protection apparatus according to claim 4, characterized in that the leaf spring (4, 24) consists of the plastic material of the lower part (2, 22) of the shock-hazard protection or the protective slide (3, 23).
  6. A shock-hazard protection apparatus according to claim 4, characterized in that the leaf spring (4, 24) consists of a plastic material which is different from the plastic material of the lower part (2, 22) of the shock-hazard protection or the protective slide (3, 23).
  7. A shock-hazard protection apparatus according to one of the preceding claims, characterized in that the leaf spring (4, 24) comprises a tapering (13, 31 ) for evening the distribution of tension within the component.
  8. A shock-hazard protection apparatus according to one of the preceding claims, characterized in that the protective slide is arranged as a rotary slide (3) which placed via its central bore (17) in a rotatably movable manner on a pin (6) which is situated centrally in the lower part (2) of the shock-hazard protection.
  9. A shock-hazard protection apparatus according to at least one of the claims 1 to 7, characterized in that the protective slide is arranged as a linear slide (23).
  10. A shock-hazard protection apparatus according to one of the preceding claims, characterized in that one section of the leaf spring (4, 24), especially a bend-off (14), is fixed by ribs (8, 27) which form a recess (12) for receiving said section of the leaf spring.
  11. A shock-hazard protection apparatus according to one of the preceding claims, characterized in that at least one rounded section (10, 30) of the leaf spring (4, 24) slides along an offset edge (9) which reduces friction.
  12. A shock-hazard protection apparatus according to one of the preceding claims, characterized in that the protective slide (3, 23) comprises engagement hollows (19, 33) arranged as inclined planes for the engagement of the plug pins.
  13. A shock-hazard protection apparatus according to claim 12, characterized in that the protective slide (3, 23) comprises at least one cam (18, 36, 37) through which it tilts when loaded on one side of merely one socket opening in such a way that an offset edge (20, 34) arranged at the edge side of the engagement hollows (19, 33) engages in the socket opening not engaged by the plug pin and latches there.
EP02019610A 2001-09-29 2002-09-03 Protection against acces to contacts of an electrical outlet Expired - Lifetime EP1298763B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10148287A DE10148287A1 (en) 2001-09-29 2001-09-29 Protection against accidental contact for an earthed socket
DE10148287 2001-09-29

Publications (3)

Publication Number Publication Date
EP1298763A2 EP1298763A2 (en) 2003-04-02
EP1298763A3 EP1298763A3 (en) 2004-07-07
EP1298763B1 true EP1298763B1 (en) 2005-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02019610A Expired - Lifetime EP1298763B1 (en) 2001-09-29 2002-09-03 Protection against acces to contacts of an electrical outlet

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EP (1) EP1298763B1 (en)
AT (1) ATE297061T1 (en)
DE (2) DE10148287A1 (en)
NO (1) NO20024652L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021969A1 (en) * 2004-05-04 2005-12-01 Abb Patent Gmbh Safety blocking mechanism for an electrical socket requires both plug pins to move spring loaded element
DE102004021970B3 (en) * 2004-05-04 2005-09-15 Abb Patent Gmbh Plug socket outlet for protecting against touching has a rotary slide component, a spring-loaded rotary slide to seal plug holes and a covering cap
DE102004021971B3 (en) * 2004-05-04 2005-09-15 Abb Patent Gmbh Socket for electrical plug has socket cup containing baseplate with apertures for plug pins and fastening screw and has inclined surfaces pushed aside by pins to allow them to make contact
DE102005011435B4 (en) * 2005-03-12 2006-11-23 Abb Patent Gmbh Socket insert of a socket with increased contact protection
US9614316B2 (en) * 2014-06-20 2017-04-04 Hubbell Incorporated Tamper resistant receptacle with propeller shutter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914991C (en) * 1939-07-29 1954-07-12 Leopold Kostal Elektrotechn Sp Socket with locking device
DE836369C (en) * 1951-03-02 1952-04-10 Max Kirmis Contact protection device for sockets
FR2547119A1 (en) * 1983-05-30 1984-12-07 Poinsignon Raphael Semi-automatic socket screen
IT1275269B (en) * 1995-05-29 1997-08-05 Bticino Spa CURRENT SOCKET DEVICE SHUTTER DEVICE
US6217353B1 (en) * 1999-12-01 2001-04-17 Aurise Inc. Structure of a safety receptacle

Also Published As

Publication number Publication date
DE10148287A1 (en) 2003-04-17
NO20024652L (en) 2003-03-31
DE50203250D1 (en) 2005-07-07
ATE297061T1 (en) 2005-06-15
NO20024652D0 (en) 2002-09-27
EP1298763A3 (en) 2004-07-07
EP1298763A2 (en) 2003-04-02

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