EP0093236B1 - Plug for an apparatus - Google Patents

Plug for an apparatus Download PDF

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Publication number
EP0093236B1
EP0093236B1 EP83101494A EP83101494A EP0093236B1 EP 0093236 B1 EP0093236 B1 EP 0093236B1 EP 83101494 A EP83101494 A EP 83101494A EP 83101494 A EP83101494 A EP 83101494A EP 0093236 B1 EP0093236 B1 EP 0093236B1
Authority
EP
European Patent Office
Prior art keywords
plug
locking piece
casing
carrier component
edge
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
EP83101494A
Other languages
German (de)
French (fr)
Other versions
EP0093236A2 (en
EP0093236A3 (en
Inventor
Werner Dipl.-Ing. Kewitz
Horst-Dieter Muhl
Sieghard Lepperhoff
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.)
Albert Ackermann GmbH and Co KG
Original Assignee
Albert Ackermann GmbH and Co KG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6162583&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0093236(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Albert Ackermann GmbH and Co KG filed Critical Albert Ackermann GmbH and Co KG
Priority to AT83101494T priority Critical patent/ATE32398T1/en
Publication of EP0093236A2 publication Critical patent/EP0093236A2/en
Publication of EP0093236A3 publication Critical patent/EP0093236A3/en
Application granted granted Critical
Publication of EP0093236B1 publication Critical patent/EP0093236B1/en
Expired 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
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74—Means for mounting coupling parts in openings of a panel
    • H01R13/741—Means for mounting coupling parts in openings of a panel using snap fastening means
    • H01R13/743—Means for mounting coupling parts in openings of a panel using snap fastening means integral with the housing
    • 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
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74—Means for mounting coupling parts in openings of a panel
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening

Definitions

  • the invention relates to a device plug for the electrical connection of a telecommunication cord to a communications device with a housing and a plug carrier element on which an outwardly projecting, resilient locking tab is formed, which enables a latching lock with the device.
  • locking tabs projecting from a side surface, in which the locking tab springs behind a locking edge, for example the housing wall of the device, with a projection.
  • the locking tabs can be designed (DE-B-24 32 122) that this locking is released by manual operation of the locking tab or so (DE-U-80 01 874) that the locking lock only with the help of a tool, for example a screwdriver , can be solved again.
  • a disadvantage of these known device plugs is that the security with which the device plugs are held in their locked position in the devices is relatively low, since the locking tabs which protrude freely on one side and which are usually made of the same plastic material as the device plug and are made in one piece therewith, can be moved from their locked position with relatively low forces. The consequence of this is that the locking of the device connector easily loosens or releases when shaken.
  • the invention has for its object to design a device connector so that a relatively large holding security is achieved in the locking position with simple means.
  • the invention is that the locking tab is designed as a spring tongue fixedly connected to the plug carrier element, which runs at a distance from the outer surface of the plug carrier element, is supported with its free end on a counter bearing and engages under an edge that at one on the Plug carrier element mounted part is provided opposite the counter bearing.
  • the locking tab is held at both ends and cannot be moved by hand when the plug is inserted, as is the case with known locking tabs.
  • the plug is then clamped and reliably held over the locking tab in the device into which it is inserted, so that there is a plug connection which does not unintentionally come loose.
  • the free end of the locking tab is held under prestress on the edge designed as a stop edge.
  • the free end lies in the direction of the outer surface on the counter bearing, so that the unlocking is determined by the force that is required to bend the locking tab.
  • the free end of the locking tab cannot swing freely. The unlocking force also increases.
  • the part placed on the plug carrier element consists of a two-shell plug housing provided with the stop edge, from which the plug carrier element projects forward with a contact area.
  • the locking tab initially protrudes from the plug carrier element and is pressed and pretensioned by the fastening in a housing of housing parts at the free end in the direction of the outer surface from which it projects.
  • a recess for the locking tab is formed in the plug housing, from which the locking tab protrudes with a surface that rises away from the contact area and forms a latching bump that ends approximately half the length of the locking tab.
  • the rising surface makes it easier to insert it, the locking tab then being bent when the device plug is inserted and springing back into its pretensioned starting position after insertion. A vibration-free hold is thereby achieved in particular because of the relatively large bending stress.
  • the plug housing has a step-like extension at least on the side assigned to the locking tab while leaving a distance from the latching hump corresponding to a wall thickness in the region of the insertion opening of the communications technology device, by means of which the insertion depth of the device plug is limited.
  • the distance between the locking hump and the extended area of the housing is selected so that it corresponds to a wall thickness of the device in the area of an insertion opening, the device connector locks in such a way that it does not yield under pressure or under tension and is firmly seated in the insertion opening .
  • the cutout for the locking tab extends into the extended housing area and if the locking tab runs in the direction of the cord-side end of the device plug and beyond the end edge of the cutout forming the stop edge and is prestressed by it.
  • an opening is created in the area outside the device in the inserted position of the device plug, through which the locking tab, for example, with a Screwdriver or the like is accessible so that the locking lock can be released again.
  • the free end can be easily determined in the sense that it is not flexible with respect to the outer surface plane of the plug carrier element, but instead is firmly clamped in the connector housing.
  • the device plug is rectangular in cross section and has the locking tab on one end face and if the connector housing is provided on the other end face with a corresponding extension as on the locking tab side.
  • a two-sided stop is formed when the device plug is inserted, and moreover the larger areas of the plug carrier element for receiving contact tracks or the like remain. free.
  • a plug carrier element is generally designated 1, which is part of a connector 4, as will be explained in FIGS. 2 to 5.
  • the plug carrier element 1 is made of plastic material and, as can also be seen from the other figures, has a rectangular cross section, contact strips 10 being arranged on both sides on the larger side surfaces, which enable contacts in a telecommunications device when the plug carrier element 1 is connected its contact area 9 is inserted into a corresponding socket, which is not shown in detail, of such a device.
  • a locking tab 2 which is made in one piece with the plug carrier element 1, protrudes from an end-side outer surface 20 at an acute angle a to the outer surface plane A-A, which has a latching protrusion 8 which enables the latching or locking in a manner described below.
  • the plug carrier element 1 is accommodated in a housing 3, which is formed from the two half-shells 3a and 3b.
  • the contact area 9 protrudes forward from this housing 3.
  • a telecommunications cord 5 is received in the housing at the cord-side end via a cord grommet 6 in a manner known per se.
  • the housing 3 for the locking tab 2 has a recess 13 on one end face, over which the locking tab 2 protrudes with a surface 7 rising towards the cord-side end, the surface below Formation of the cusp 8 ends about half the length of the locking tab.
  • the housing walls 3c lying to the side of the locking tab 2 end approximately at the level of the line K shown in dashed lines in FIG. 2 and merge into an expanded housing area to form a step-like extension 11.
  • the recess 13 is also continued in the expanded area of the housing with a section 13a (cf. FIG. 3) and is delimited by the stop edge 12.
  • the length of the locking tab 2 is dimensioned such that it extends with its free end 2a, on which it has a block-like shoulder 15, towards the cord-side end of the housing under this stop edge 12.
  • the locking tab 2 is pressed by this stop edge 12 towards the outer surface 20 and held in a position in which it runs approximately parallel and at a distance a from this outer surface 20.
  • the block-like shoulder 15 is seated on a counter bearing 16 formed on the housing, so that the free end is firmly clamped over the shoulder 15.
  • the two half-shells of the housing are connected to one another via hollow rivets 14.
  • the locking tab 2 When the device plug 4 is inserted into a housing opening (cf. FIG. 4), the locking tab 2 is gradually bent through the wall 18 in which the plug-in opening for the device plug is formed.
  • the distance between the step-like extension 11a and the locking surface 8 delimiting the rising surface 7 is dimensioned such that it corresponds to a wall thickness b, so that the locking tab 2 then springs out and returns to its original position when the stop 1 la and also at push the stop 11b on the opposite side against the outside of the housing to limit the insertion depth. This ensures a vibration-free hold, with locking forces being large, so that a reliable hold of the plug is ensured.
  • the area 13a of the recess 13 which extends into the enlarged housing part lies in the locked position of the device plug outside the housing wall 15, so that there is the possibility of using a tool, for example a screwdriver 17, through this section 13a onto the tab 2 by pressure act so that it bends and the connector can be unlocked, as shown in Fig. 5. It can also be seen from FIG. 5 that the rear edge 12 the recess runs chamfered, so that the insertion of a tool is easily possible and the unlocking can be brought about easily.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Processing Of Terminals (AREA)

Abstract

1. Plug for an apparatus for the electrical connection of a communications cord to a communications apparatus with a casing (3) and a plug carrier component (1), on which a sprung locking piece (2) is constructed which runs towards the outside and which permits snap-in locking with the apparatus, characterised in that the locking piece (2) is constructed as a flexible tongue which is connected rigidly on one side to the plug carrier component (1), which runs in the distance (a) to the external surface (20) of the plug carrier component (1), which is supported with its free end (2a) at a supporting point (16) and which engages under an edge (12), which is provided at a part (3) placed on the plug carrier component (1) in relation to the supporting point (16).

Description

Die Erfindung betrifft einen Gerätestecker zum elektrischen Anschluß einer Fernmeldeschnur an ein nachrichtentechnisches Gerät mit einem Gehäuse und einem Steckerträgerelement, an dem eine nach außen abragende, federnde Arretierlasche ausgebildet ist, die eine Rastverriegelung mit dem Gerät ermöglicht.The invention relates to a device plug for the electrical connection of a telecommunication cord to a communications device with a housing and a plug carrier element on which an outwardly projecting, resilient locking tab is formed, which enables a latching lock with the device.

Es ist bekannt, Gerätestecker über von einer Seitenfläche abstehende Arretierlaschen an einem nachrichtentechnischen Gerät zu arretieren, in dem die Arretierlasche hinter einer Rastkante, beispielsweise der Gehäusewandung des Gerätes, mit einem Vorsprung einfedert. Die Arretierlaschen können so ausgebildet sein (DE-B-24 32 122), daß diese Verriegelung durch Handbetätigung der Arretierlasche sich löst oder aber so (DE-U-80 01 874), daß die Rastverriegelung nur mit Hilfe eines Werkzeugs, beispielsweise eines Schraubendrehers, wieder gelöst werden kann. Nachteilig bei diesen bekannten Gerätesteckern ist, daß die Sicherheit mit der die Gerätestecker in ihrer arretierten Stellung in den Geräten gehalten werden, relativ gering sind, da die einseitig frei abstehenden Arretierlaschen, die üblicherweise aus demselben Kunststoffmaterial wie die Gerätestecker und einstückig mit diesen hergestellt sind, mit relativ geringen Kräften aus ihrer Verriegelungslage bewegt werden können. Die Folge davon ist, daß sich die Verriegelung des Gerätesteckers bei Erschütterungen leicht lockert oder löst.It is known to lock device plugs on a telecommunications device via locking tabs projecting from a side surface, in which the locking tab springs behind a locking edge, for example the housing wall of the device, with a projection. The locking tabs can be designed (DE-B-24 32 122) that this locking is released by manual operation of the locking tab or so (DE-U-80 01 874) that the locking lock only with the help of a tool, for example a screwdriver , can be solved again. A disadvantage of these known device plugs is that the security with which the device plugs are held in their locked position in the devices is relatively low, since the locking tabs which protrude freely on one side and which are usually made of the same plastic material as the device plug and are made in one piece therewith, can be moved from their locked position with relatively low forces. The consequence of this is that the locking of the device connector easily loosens or releases when shaken.

Der Erfindung liegt die Aufgabe zugrunde, einen Gerätestecker so auszubilden, daß mit einfachen Mitteln eine relativ große Haltesicherheit in der Rastposition erreicht wird.The invention has for its object to design a device connector so that a relatively large holding security is achieved in the locking position with simple means.

Die Erfindung besteht darin, daß die Arretierlasche als eine einseitig fest mit dem Steckerträgerelement verbundene Federzunge ausgebildet ist, die im Abstand zu der Außenfläche des Steckerträgerelements verläuft, mit ihrem freien Ende an einem Gegenlager abgestützt ist und unter eine Kante greift, die an einem auf das Steckerträgerelement aufgesetzten Teil gegenüber dem Gegenlager vorgesehen ist.The invention is that the locking tab is designed as a spring tongue fixedly connected to the plug carrier element, which runs at a distance from the outer surface of the plug carrier element, is supported with its free end on a counter bearing and engages under an edge that at one on the Plug carrier element mounted part is provided opposite the counter bearing.

Durch diese Ausgestaltung ist die Arretierlasche an beiden Enden gehalten und kann im gesteckten Zustand des Steckers durch Handbetätigung nicht bewegt werden, wie es bei bekannten Arretierlaschen der Fall ist. Dadurch entsteht eine zuverlässig wirkende, gegen unbeabsichtiges Lösen geschützte Rastverbindung. Der Stecker wird dann über die Arretierlasche in dem Gerät, in das er eingesteckt wird, verspannt und zuverlässig gehalten, so daß sich eine Steckverbindung ergibt, die sich nicht ungewollt löst.With this configuration, the locking tab is held at both ends and cannot be moved by hand when the plug is inserted, as is the case with known locking tabs. This creates a reliable-acting locking connection that is protected against unintentional loosening. The plug is then clamped and reliably held over the locking tab in the device into which it is inserted, so that there is a plug connection which does not unintentionally come loose.

Zur weiteren Steigerung der Verriegelungs-Sicherheit ist es sehr vorteilhaft, wenn das freie Ende der Arretierlasche unter Vorspannung an der als Anschlagkante ausgebildeten Kante gehalten ist. Das freie Ende liegt dabei in Richtung auf die Außenfläche auf dem Gegenlager auf, so daß die Entriegelung von der Kraft bestimmt wird, die benötigt wird, um die Arretierlasche durchzubiegen. Auch im nicht gesteckten Zustand kann das freie Ende der Arretierlasche jedoch nicht frei schwingen. Auch die Entriegelungskraft wird größer.To further increase the locking security, it is very advantageous if the free end of the locking tab is held under prestress on the edge designed as a stop edge. The free end lies in the direction of the outer surface on the counter bearing, so that the unlocking is determined by the force that is required to bend the locking tab. However, even when not plugged in, the free end of the locking tab cannot swing freely. The unlocking force also increases.

In vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, daß das auf das Steckerträgerelement aufgesetzte Teil aus einem zweischaligen, mit der Anschlagkante versehene Steckergehäuse besteht, aus dem das Steckerträgerelement mit einem Kontaktbereich nach vorn herausragt.In an advantageous embodiment of the invention, it is provided that the part placed on the plug carrier element consists of a two-shell plug housing provided with the stop edge, from which the plug carrier element projects forward with a contact area.

Gemäß dieser Ausgestaltung steht die Arretierlasche zunächst vom Steckerträgerelement ab und wird durch die Befestigung in einem Gehäuse von Gehäuseteilen am freien Ende in Richtung auf die Außenfläche, von der es absteht, gedrückt und vorgespannt. Damit läßt sich der angestrebte Erfolg mit relativ einfachen baulichen Maßnahmen erreichen.According to this embodiment, the locking tab initially protrudes from the plug carrier element and is pressed and pretensioned by the fastening in a housing of housing parts at the free end in the direction of the outer surface from which it projects. The desired success can thus be achieved with relatively simple structural measures.

Es ist zweckmäßig, wenn in dem Steckergehäuse eine Aussparung für die Arretierlasche ausgebildet ist, aus der die Arretierlasche mit einer vom Kontaktbereich weg ansteigenden Fläche herausragt, die einen Rasthöcker bildet, der etwa auf halber Länge der Arretierlasche endet. Die ansteigende Fläche stellt eine Einschiebeerleichterung dar, wobei dann beim Einstecken des Gerätesteckers die Arretierlasche durchgebogen wird und nach dem Einstecken wieder in ihre vorgespannte Ausgangslage zurückfedert. Dadurch wird insbesondere ein erschütterungsfreier Halt wegen der relativ großen Durchbiegespannung erreicht.It is expedient if a recess for the locking tab is formed in the plug housing, from which the locking tab protrudes with a surface that rises away from the contact area and forms a latching bump that ends approximately half the length of the locking tab. The rising surface makes it easier to insert it, the locking tab then being bent when the device plug is inserted and springing back into its pretensioned starting position after insertion. A vibration-free hold is thereby achieved in particular because of the relatively large bending stress.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß das Steckergehäuse mindestens auf der der Arretierlasche zugeordneten Seite unter Belassung eines einer Wandstärke im Bereich der Einschuböffnung des nachrichtentechnischen Gerätes entsprechenden Abstandes zum Rasthöcker eine stufenartige Erweiterung besitzt, durch die die Einstecktiefe des Gerätesteckers begrenzt ist. Dadurch, daß der Abstand zwischen dem Rasthöcker und dem erweiterten Bereich des Gehäuses so gewählt ist, daß er einer Wandstärke des Gerätes im Bereich einer Einschuböffnung entspricht, verrastet der Gerätestecker so, daß er weder unter Druck noch unter Zug nachgibt und fest in der Einschuböffnung sitzt.In a further embodiment of the invention, it is provided that the plug housing has a step-like extension at least on the side assigned to the locking tab while leaving a distance from the latching hump corresponding to a wall thickness in the region of the insertion opening of the communications technology device, by means of which the insertion depth of the device plug is limited. Characterized in that the distance between the locking hump and the extended area of the housing is selected so that it corresponds to a wall thickness of the device in the area of an insertion opening, the device connector locks in such a way that it does not yield under pressure or under tension and is firmly seated in the insertion opening .

Weiterhin ist es vorteilhaft, wenn die Aussparung für die Arretierungslasche bis in den erweiterten Gehäusebereich fortgesetzt ist und wenn die Arretierungslasche in Richtung zum schnurseitigen Ende des Gerätesteckers hin bis hinter die die Anschlagkante bildende Endkante der Aussparung verläuft und durch diese vorgespannt ist. Durch diese Ausgestaltung wird in dem außerhalb des Gerätes in eingeschobener Stellung des Gerätesteckers liegenden Bereich eine Öffnung geschaffen, über die die Arretierungslasche beispielsweise mit einem Schraubenzieher o.dgl. zugänglich ist, so daß die Rastverriegelung wieder gelöst werden kann.Furthermore, it is advantageous if the cutout for the locking tab extends into the extended housing area and if the locking tab runs in the direction of the cord-side end of the device plug and beyond the end edge of the cutout forming the stop edge and is prestressed by it. With this configuration, an opening is created in the area outside the device in the inserted position of the device plug, through which the locking tab, for example, with a Screwdriver or the like is accessible so that the locking lock can be released again.

Wenn am freien Ende der Arretierlasche ein klotzartiger Absatz ausgebildet ist, der auf einem das Gegenlager bildenden Anschlag im Steckergehäuse aufsitzt, läßt sich in einfacher Weise die Festlegung des freien Endes in dem Sinn erreichen, daß dieses nicht gegenüber der Außenflächenebene des Steckerträgerelements nachgiebig ist, sondern fest im Steckergehäuse eingespannt ist.If a block-like shoulder is formed at the free end of the locking tab, which sits on a stop forming the counterbearing in the plug housing, the free end can be easily determined in the sense that it is not flexible with respect to the outer surface plane of the plug carrier element, but instead is firmly clamped in the connector housing.

Schließlich ist es zweckmäßig, wenn der Gerätestecker im Querschnitt rechteckig ausgebildet ist und an einer Stirnseite die Arretierungslasche besitzt und wenn das Steckergehäuse an der anderen Stirnseite mit einer entsprechenden Erweiterung wie auf der Arretierlaschenseite versehen ist. Dadurch wird beim Einstecken des Gerätesteckers ein zweiseitiger Anschlag gebildet und außerdem bleiben dadurch die größeren Flächen des Steckerträgerelements zur Aufnahme von Kontaktbahnen o.dgl. frei.Finally, it is expedient if the device plug is rectangular in cross section and has the locking tab on one end face and if the connector housing is provided on the other end face with a corresponding extension as on the locking tab side. As a result, a two-sided stop is formed when the device plug is inserted, and moreover the larger areas of the plug carrier element for receiving contact tracks or the like remain. free.

Die Erfindung ist anhand eines Ausführungsbeispiels in der Zeichnung dargestellt und wird im folgenden weiter erläutert.The invention is illustrated in the drawing using an exemplary embodiment and is further explained below.

Es zeigen

  • Fig. 1 ein erfindungsgemäßes Steckerträgerelement in Seitenansicht,
  • Fig. 2 einen erfindungsgemäßen Gerätestecker mit aufgenommenem Steckerträgerelement im Querschnitt durch das Steckergehäuse,
  • Fig. 3 die Draufsicht auf eine Stirnseite des Gerätesteckers,
  • Fig. 4 den Gerätestecker in verrasteter Stellung und
  • Fig. 5 den Gerätestecker beim Entriegelungsvorgang.
Show it
  • 1 is a side view of a connector carrier element according to the invention,
  • 2 shows a device plug according to the invention with a received plug carrier element in cross section through the plug housing,
  • 3 is a top view of an end face of the connector,
  • Fig. 4 shows the connector in the locked position and
  • Fig. 5 shows the connector during the unlocking process.

In Fig. 1 ist ein Steckerträgerelement im ganzen mit 1 bezeichnet, das Teil eines Gerätesteckers 4 ist, wie er in den Fig. 2 bis 5 weiter erläutert wird. Das Steckerträgerelement 1 ist aus Kunststoffmaterial hergestellt und besitzt, wie ebenfalls aus den weiteren Figuren zu erkennen ist, eine im Querschnitt rechteckige Form, wobei auf den größeren Seitenflächen beidseitig Kontaktbahnen 10 angeordnet sind, die Kontakte in einem nachrichtentechnischen Gerät ermöglichen, wenn das Steckerträgerelement 1 mit seinem Kontaktbereich 9 in eine entsprechende Buchse, die nicht näher gezeigt ist, eines solchen Gerätes eingesteckt wird.In Fig. 1, a plug carrier element is generally designated 1, which is part of a connector 4, as will be explained in FIGS. 2 to 5. The plug carrier element 1 is made of plastic material and, as can also be seen from the other figures, has a rectangular cross section, contact strips 10 being arranged on both sides on the larger side surfaces, which enable contacts in a telecommunications device when the plug carrier element 1 is connected its contact area 9 is inserted into a corresponding socket, which is not shown in detail, of such a device.

Von einer stirnseitigen Außenfläche 20 steht eine einstückig mit dem Steckerträgerelement 1 hergestellte Arretierlasche 2 in einem spitzen Winkel a zur Außenflächenebene A-A ab, die einen Rasthöcker 8 aufweist, der die Verrastung bzw. Verriegelung in noch weiter unten beschriebener Weise ermöglicht.A locking tab 2, which is made in one piece with the plug carrier element 1, protrudes from an end-side outer surface 20 at an acute angle a to the outer surface plane A-A, which has a latching protrusion 8 which enables the latching or locking in a manner described below.

Wie aus Fig. 2 u. 3 zu erkennen ist, ist das Steckerträgerelement 1 in einem Gehäuse 3 aufgenommen, das aus den beiden Halbschalen 3a und 3b gebildet ist. Aus diesem Gehäuse 3 ragt der Kontaktbereich 9 nach vorne heraus. Im Gehäuse wird am schnurseitigen Ende eine Fernmeldeschnur 5 über eine Schnurtülle 6 in an sich bekannter Weise aufgenommen.As from Fig. 2 u. 3 can be seen, the plug carrier element 1 is accommodated in a housing 3, which is formed from the two half-shells 3a and 3b. The contact area 9 protrudes forward from this housing 3. A telecommunications cord 5 is received in the housing at the cord-side end via a cord grommet 6 in a manner known per se.

In Zusammenschau der Fig. 2 und 3 ist zu erkennen, daß das Gehäuse 3 für die Arretierlasche 2 an einer Stirnseite eine Aussparung 13 besitzt, über die die Arretierlasche 2 mit einer in Richtung zum schnurseitigen Ende hin ansteigenden Fläche 7 herausragt, wobei die Fläche unter Bildung des Höckers 8 etwa auf der Hälfte der Länge der Arretierlasche endet. Die seitlich der Arretierungslasche 2 liegenden Gehäusewandungen 3c enden etwa auf der Höhe der gestrichelt in Fig. 2 dargestellten Linie K und gehen unter Bildung einer stufenartigen Erweiterung 11 in einen erweiterten Gehäusebereich über. Die Aussparung 13 ist auch in dem erweiterten Bereich des Gehäuses mit einem Abschnitt 13a (vgl. Fig. 3) fortgesetzt und wird durch die Anschlagkante 12 begrenzt. Die Länge der Arretierlasche 2 ist so bemessen, daß diese mit ihrem freien Ende 2a, an dem sie einen klotzartigen Absatz 15 aufweist, in Richtung zum schnurseitigen Ende des Gehäuses unter diese Anschlagkante 12 sich erstreckt. Dadurch wird die Arretierlasche 2 beim Zusammenbau des Gehäuses durch diese Anschlagkante 12 in Richtung zur Außenfläche 20 hin gedrückt und in einer Position gehalten, in der sie etwa parallel und in einem Abstand a zu dieser Außenfläche 20 verläuft. Der klotzartige Absatz 15 sitzt auf einem am Gehäuse ausgebildeten Gegenlager 16 auf, so daß das freie Ende über den Absatz 15 fest eingespannt ist. Die beiden Halbschalen des Gehäuses werden über Hohlnieten 14 miteinander verbunden.2 and 3 it can be seen that the housing 3 for the locking tab 2 has a recess 13 on one end face, over which the locking tab 2 protrudes with a surface 7 rising towards the cord-side end, the surface below Formation of the cusp 8 ends about half the length of the locking tab. The housing walls 3c lying to the side of the locking tab 2 end approximately at the level of the line K shown in dashed lines in FIG. 2 and merge into an expanded housing area to form a step-like extension 11. The recess 13 is also continued in the expanded area of the housing with a section 13a (cf. FIG. 3) and is delimited by the stop edge 12. The length of the locking tab 2 is dimensioned such that it extends with its free end 2a, on which it has a block-like shoulder 15, towards the cord-side end of the housing under this stop edge 12. As a result, when the housing is assembled, the locking tab 2 is pressed by this stop edge 12 towards the outer surface 20 and held in a position in which it runs approximately parallel and at a distance a from this outer surface 20. The block-like shoulder 15 is seated on a counter bearing 16 formed on the housing, so that the free end is firmly clamped over the shoulder 15. The two half-shells of the housing are connected to one another via hollow rivets 14.

Beim Einschieben des Gerätesteckers 4 in eine Gehäuseöffnung (vgl. Fig. 4) wird die Arretierlasche 2 durch die Wand 18, in der die Einstecköffnung für den Gerätestecker ausgebildet ist, allmählich durchgebogen. Der Abstand zwischen der stufenartigen Erweiterung 11a und dem die ansteigende Fläche 7 begrenzenden Rasthöcker 8 ist so bemessen, daß er einer Wandstärke b entspricht, so daß die Arretierlasche 2 dann ausfedert und in ihre ursprüngliche Lage zurückkehrt, wenn der Anschlag 1 la und auch der an der gegenüberliegenden Seite angebrachte Anschlag 11b außen gegen das Gehäuse zur Begrenzung der Einstecktiefe stoßen. Es wird dadurch ein erschütterungsfreier Halt gewährleistet, wobei Rastkräfte groß sind, so daß ein zuverlässiger Halt des Steckers gewährleistet ist.When the device plug 4 is inserted into a housing opening (cf. FIG. 4), the locking tab 2 is gradually bent through the wall 18 in which the plug-in opening for the device plug is formed. The distance between the step-like extension 11a and the locking surface 8 delimiting the rising surface 7 is dimensioned such that it corresponds to a wall thickness b, so that the locking tab 2 then springs out and returns to its original position when the stop 1 la and also at push the stop 11b on the opposite side against the outside of the housing to limit the insertion depth. This ensures a vibration-free hold, with locking forces being large, so that a reliable hold of the plug is ensured.

Der in den erweiterten Gehäuseteil sich erstreckende Bereich 13a der Aussparung 13 liegt in verriegelter Stellung des Gerätesteckers außerhalb der Gehäusewandung 15, so daß die Möglichkeit gegeben ist, mit einem Werkzeug, beispielsweise einem Schraubendreher 17, durch diesen Abschnitt 13a hindurch auf die Lasche 2 durch Druck einzuwirken, so daß diese sich durchbiegt und der Gerätestecker entriegelt werden kann, wie das in Fig. 5 gezeigt ist. Ebenso ist aus Fig. 5 zu erkennen, daß die Hinterkante 12 der Aussparung abgeschrägt verläuft, so daß das Einschieben eines Werkzeugs einfach möglich ist und die Entriegelung einfach herbeigeführt werden kann.The area 13a of the recess 13 which extends into the enlarged housing part lies in the locked position of the device plug outside the housing wall 15, so that there is the possibility of using a tool, for example a screwdriver 17, through this section 13a onto the tab 2 by pressure act so that it bends and the connector can be unlocked, as shown in Fig. 5. It can also be seen from FIG. 5 that the rear edge 12 the recess runs chamfered, so that the insertion of a tool is easily possible and the unlocking can be brought about easily.

Es ist nicht notwendig, das freie Ende der Arretierlasche 2 vorzuspannen, obwohl dies vorteilhaft ist. Wichtig ist nur, daß das freie Ende auf einem Gegenlager 16 abgestützt ist, weil dadurch die Entriegelungskraft trotz einfacher Ausgestaltung und Herstellungsmöglichkeit aus Kunststoff sehr groß werden kann. Vorteilhaft ist auch, daß das freie Ende der Arretierlasche unter die Kante 12 greift, weil es dadurch einer Handbetätigung entzogen wird.It is not necessary to pretension the free end of the locking tab 2, although this is advantageous. It is only important that the free end is supported on a counter bearing 16, because the unlocking force can thereby be very large, despite the simple design and the possibility of production from plastic. It is also advantageous that the free end of the locking tab engages under the edge 12 because it is thereby removed from manual operation.

Claims (8)

1. Plug for an apparatus for the electrical connection of a communications cord to a communications apparatus with a casing (3) and a plug carrier component (1), on which a sprung locking piece (2) is constructed which runs towards the outside and which permits snap-in locking with the apparatus, characterised in that the locking piece (2) is constructed as a flexible tongue which is connected rigidly on one side to the plug carrier component (1), which runs in the distance (a) to the external surface (20) of the plug carrier component (1), which is supported with its free end (2a) at a supporting point (16) end which engages under an edge (12), which is provided at a part (3) placed on the plug carrier component (1) in relation to the supporting point (16).
2. Plug for an apparatus according to claim 1, characterised in that the edge is constructed as a stop edge (12), under which the free end (2a) of the flexible tongue is held by pretensioning.
3. Plug for an apparatus according to claim 1 or 2, characterised in that the part placed on the plug carrier component (1) consists of a two-shell plug casing (3,3a, 3b) provided with the stop edge (12), from which the plug carrier component protrudes forwards with a contact area (9).
4. Plug for an apparatus according to one of claims 1 to 3, characterised in that a recess (13) for the locking piece (2) is formed in the plug casing (3), from which the locking piece (2) protrudes with a surface (7) rising away from the contact area (9), which forms a stop protuberance (8) which ends at approximately half the length of the locking piece (2).
5. Plug for an apparatus according to one of claims 1 to 4, characterised in that the plug casing (3) is provided with a step-like casing extension (11a) at least on the side facing the locking piece (2) whilst leaving a clearance (b) to the stop protuberance (8) corresponding to a wall thickness in the area of the plug-in opening of the communications apparatus, whereby the insertion depth of the plug (4) for the apparatus is limited by this casing extension.
6. Plug for an apparatus according to one of claims 1 to 5, characterised in that the recess (13) for the locking piece (2) is extended into the extended casing area (13a) and in that the locking piece (2) runs in the direction of the cord side end of the plug (4) to behind the end edge of the recess (13) forming the stop edge (12) and is pretensioned by this.
7. Plug for an apparatus according to one of claims 1 to 6, characterised in that a block-type part (15) is formed at the free end (2a) of the locking piece (2), which is seated on a stop (16) in the plug casing (3) which forms the supporting point.
8. Plug for an apparatus according to one of claims 1 to 7, characterised in that the plug (4) is of rectangular construction in cross section and is provided with the locking piece (2) on one face and in that on the other face the plug casing (3) is provided with a corresponding extension (11b) as on the locking piece side.
EP83101494A 1982-05-03 1983-02-17 Plug for an apparatus Expired EP0093236B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101494T ATE32398T1 (en) 1982-05-03 1983-02-17 DEVICE PLUG.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3216494 1982-05-03
DE19823216494 DE3216494A1 (en) 1982-05-03 1982-05-03 DEVICE PLUG

Publications (3)

Publication Number Publication Date
EP0093236A2 EP0093236A2 (en) 1983-11-09
EP0093236A3 EP0093236A3 (en) 1986-08-13
EP0093236B1 true EP0093236B1 (en) 1988-02-03

Family

ID=6162583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101494A Expired EP0093236B1 (en) 1982-05-03 1983-02-17 Plug for an apparatus

Country Status (3)

Country Link
EP (1) EP0093236B1 (en)
AT (1) ATE32398T1 (en)
DE (2) DE3216494A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES282139Y (en) * 1984-10-19 1985-12-16 I.T.W. Espana, S.A. CABLE RETAINER CONNECTOR
US5057030A (en) * 1990-07-02 1991-10-15 Itt Corporation Grommet/seal member for a connector assembly
DE4202234C1 (en) * 1992-01-28 1992-11-05 Paul 4284 Heiden De Ossege Plug for telecommunications appts. - has V=shaped flexible latching element on top side of tip section allowing secure engagement of plug in socket

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889125A (en) * 1955-01-31 1959-06-02 Hart Mfg Co Fastener for retaining casings in panels
US3358262A (en) * 1965-10-14 1967-12-12 Amp Inc Co-ax patch panel and insulative housing members therefor
DE1640411A1 (en) * 1967-10-31 1970-05-27 Harting Elektro W Connector for fastening in mounting wall cutouts
US3639950A (en) * 1968-09-13 1972-02-08 Itt Latching device
US3860316A (en) * 1973-07-06 1975-01-14 Western Electric Co Electrical connecting devices for terminating cords and methods of assembling the devices to cords
DE8001874U1 (en) * 1980-01-25 1981-04-30 Albert Ackermann GmbH & Co, 5270 Gummersbach Plug for electrical cables

Also Published As

Publication number Publication date
EP0093236A2 (en) 1983-11-09
DE3375625D1 (en) 1988-03-10
EP0093236A3 (en) 1986-08-13
ATE32398T1 (en) 1988-02-15
DE3216494A1 (en) 1983-11-03

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