EP0117286B1 - Coupling device - Google Patents

Coupling device Download PDF

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Publication number
EP0117286B1
EP0117286B1 EP19830110993 EP83110993A EP0117286B1 EP 0117286 B1 EP0117286 B1 EP 0117286B1 EP 19830110993 EP19830110993 EP 19830110993 EP 83110993 A EP83110993 A EP 83110993A EP 0117286 B1 EP0117286 B1 EP 0117286B1
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EP
European Patent Office
Prior art keywords
pot
plug
coupling device
socket
disposed
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Expired
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EP19830110993
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German (de)
French (fr)
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EP0117286A1 (en
Inventor
Alfred Dipl.-Ing. Könneman
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Grote and Hartmann GmbH and Co KG
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Grote and Hartmann GmbH and Co KG
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Application filed by Grote and Hartmann GmbH and Co KG filed Critical Grote and Hartmann GmbH and Co KG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • 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
    • H01R13/622—Screw-ring or screw-casing

Definitions

  • the invention relates to a plug-in coupling for round plug contacts crimped on electrical conductors, consisting of a plug and a socket, preferably round plug-in sleeves in chambers of the plug and round plug-in pins in chambers of the plug.
  • the object of the invention is to provide a plug-in coupling with as many contacts as possible, which is easily pluggable and watertight and has chambers in which the contacts are secured against being pulled out by an additional locking device.
  • the new, round, waterproof plug-in coupling made of plastic consists of the cylindrical socket 1 with contact chambers 2 running parallel to the cylinder axis and spaced apart from one another, from the surface 5 to the mating surface 6 of the socket 1, and the cylindrical plug 3 with likewise arranged from through the surface 7 up to the plug-in surface 8 of the connector 3 through contact chambers 4.
  • the chambers 2 and 4 are arranged opposite one another in alignment.
  • Socket 1 and plug 3 preferably have the same diameter.
  • the coupling shown by way of example in FIG. 1 has twenty-five poles, i. H. twenty-five chambers each in socket and plug.
  • the plug 3 is seated in an essentially cylindrical pot 9, on the bottom 10 of which the surface 7 of the plug 3 rests.
  • On the bottom 10 inwardly projecting, radially inwardly resilient, laterally spaced locking arms 11 are arranged in groups, each group consisting of at least two arms 11, which, viewed in plan view, are arranged on a circle whose diameter is slightly smaller than the diameter of a chamber 4 in the area of the surface 7 and which each project as a group into a chamber 4, taking up about a third of the length of the chamber.
  • the pot 9 is longer than the plug 3 and partially extends beyond the socket 1 seated on the plug 3. It is expedient to provide a circumferential step 12 in the pot 9 in the area of the plug 3, so that the area 13 above the step has a larger diameter than below, the plug in the lower area being approximately form-fitting in the pot 9 and above the step centering ribs 14 are arranged on its outer wall, distributed around the circumference, which are supported against the inner wall of area 13 and are preferably seated on step 12. Above step 12, the inner wall of the pot 9 is cylindrical in shape.
  • the socket 1 is also inserted in a cylindrical pot 15, on the bottom 16 of which the surface 5 of the socket rests, preferably on the bottom 16 in the same way grouped and acting locking arms 11 grouped as on the bottom 10 of the pot 9, which are each arranged reach into a contact chamber 2.
  • the wall 17 of the pot 15 is shorter than the length of the socket 1, but protrudes into the pot 9.
  • the socket 1 is positively seated in the pot 15 and the pot 15 is positively seated in the pot 9.
  • the socket 1 is expedient Centering ribs 18a distributed on the outside of the circumference are arranged on the wall 17a and extend from the insertion surface 6 to almost the edge of the wall 17.
  • the ribs 14 and 18a preferably run parallel to the longitudinal axis of the plug-in coupling.
  • the pot 15 expediently has stops on the outside in the upper end region, in particular in the form of a circumferential annular web 18, which rests on the upper edge 19 of the pot 9 and limits the insertion.
  • the pot 9 has an external thread 20 below the upper edge 19.
  • a nut 21 with a corresponding internal thread 22 is screwed onto the external thread 20.
  • the nut 21 preferably has an inwardly projecting annular collar 23 in the upper edge region, which, owing to the screw connection, abuts the annular web 18 of the pot 15, which in turn is pressed onto the upper edge 19 of the pot 9. This causes the coupling parts to jam, which prevents them from being pulled apart.
  • Sealing is preferably carried out by an O-ring 27 which is supported in an outer ring groove 28 made in the wall 17 of the pot 15 and is pressed against the inner wall of the pot 9.
  • the plug-in coupling according to the invention preferably also has anti-rotation means. At least one longitudinal groove-shaped, marginal recess 29 is preferably provided, in which a web 30 is guided in a form-fitting manner.
  • the anti-rotation means are present in all four main parts (inner body 1 and 3, outer body 9 and 15). They are used for the assembly of two related parts, e.g. B. 3, 9 and 1, 15, to prevent rotation and the fully assembled parts 3, 9 and 1, 15 to each other.
  • a special embodiment of the invention provides that the pot 15 is locked with the socket 1 as well as the pot 9 with the plug 3.
  • the latching means for the pot-socket combination expediently consist of radially resilient latch arms 31 distributed over the circumference, which protrude downward from the pot 15 and have an inwardly directed latching lug 32.
  • the locking arms 31 are shaped such that a free space remains for the radial spring travel between the inner wall and the arms.
  • the latching lugs 32 engage behind cams 33 arranged on the outer jacket of the socket 1. Openings 35 in the base 16 and longitudinal grooves 34 in the socket 1 enable, for example, the latching arms 31 to be pressed radially outward with a tool for unlatching.
  • latching arms 31a are arranged with a radial outer free space, which engage with their latching lugs 32a behind cams 33a arranged on the circumference of the plug. Openings 35a in the base 10 and longitudinal grooves 34a in the plug 3 also enable unlatching with an appropriate tool.
  • the locking lugs 32 and 32a find pre-locking cams 36 and 36a. These act together with the locking arms 11 and 11a in such a way that the locking arms 11, 11a in the pre-locking position extend axially parallel into the chambers 2 and 4, respectively. If the parts socket-socket or socket-plug are pushed further into one another until the final catch, the locking arms 11, 11a slide on a conically inwardly directed annular surface 37 and are forced radially inwards. They engage behind a locking edge of an electrical circular plug contact (not shown) which has previously been inserted into the chambers 2, 4 and whose conductor wire is led out of the openings 38 and 38a (not shown).
  • the new plug-in coupling expediently also has a flange 39 which is placed against a sheet metal 41 via a preferably elastic ring 40, the part of the plug-in coupling arranged above the flange 39 reaching through a hole 42.
  • the outer diameter of the nut 21 is larger than the diameter of the hole 42 and the lower edge of the nut 21 is optionally on an elastic ring (not shown) on the sheet 41, so that there is a jamming of the plug coupling with the sheet.

Description

Die Erfindung betrifft eine Steckkupplung für an elektrische Leiter gecrimpte Rundsteckkontakte, bestehend aus einem Stekker und einer Buchse, wobei vorzugsweise in Kammern der Buchse Rundsteckhülsen und in Kammern des Steckers Rundsteckstifte sitzen.The invention relates to a plug-in coupling for round plug contacts crimped on electrical conductors, consisting of a plug and a socket, preferably round plug-in sleeves in chambers of the plug and round plug-in pins in chambers of the plug.

Aufgabe der Erfindung ist, eine Steckkupplung mit möglichst vielen Kontakten zu schaffen, die leicht steckbar und wasserdicht ist und Kammern aufweist, in denen die Kontakte durch eine Zusatzverriegelung gegen Herausziehen gesichert sind.The object of the invention is to provide a plug-in coupling with as many contacts as possible, which is easily pluggable and watertight and has chambers in which the contacts are secured against being pulled out by an additional locking device.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Anhand der Zeichnung wird die beispielhaft abgebildete Erfindung im folgenden näher erläutert.Based on the drawing, the invention shown by way of example is explained in more detail below.

Es zeigen :

  • Figur 1 eine Draufsicht auf die Steckkupplung,
  • Figur 2 einen Schnitt durch die Steckkupplung im Bereich A-B mit Blick in Richtung der Pfeile,
  • Figur 3 einen Schnitt durch die Steckkupplung im Bereich C-D mit Blick in Richtung der Pfeile.
Show it :
  • FIG. 1 shows a top view of the plug-in coupling,
  • FIG. 2 shows a section through the plug-in coupling in the area AB with a view in the direction of the arrows,
  • Figure 3 shows a section through the plug coupling in the CD area with a view in the direction of the arrows.

Die neue, runde, wasserdichte Steckkupplung aus Kunststoff besteht aus der zylinderförmigen Buchse 1 mit zur Zylinderachse parallel verlaufenden und voneinander auf Abstand angeordneten, von der Oberfläche 5 bis zur Steckfläche 6 der Buchse 1 durchgehenden Kontaktkammern 2 und dem zylinderförmigen Stecker 3 mit ebenso angeordneten, von der Oberfläche 7 bis zur Steckfläche 8 des Stekers 3 durchgehenden Kontaktkammern 4. Im gesteckten Zustand der Kupplung sind die Kammern 2 und 4 fluchtend sich gegenüberliegend angeordnet. Buchse 1 und Stecker 3 haben vorzugsweise die gleichen Durchmesser. Die in Fig. 1 beispielhaft abgebildete Kupplung weist fünfundzwanzig Pole, d. h. jeweils fünfundzwanzig Kammern in Buchse und Stecker auf.The new, round, waterproof plug-in coupling made of plastic consists of the cylindrical socket 1 with contact chambers 2 running parallel to the cylinder axis and spaced apart from one another, from the surface 5 to the mating surface 6 of the socket 1, and the cylindrical plug 3 with likewise arranged from through the surface 7 up to the plug-in surface 8 of the connector 3 through contact chambers 4. When the coupling is in the inserted state, the chambers 2 and 4 are arranged opposite one another in alignment. Socket 1 and plug 3 preferably have the same diameter. The coupling shown by way of example in FIG. 1 has twenty-five poles, i. H. twenty-five chambers each in socket and plug.

Der Stecker 3 sitzt in einem im wesentlichen zylinderförmigen Topf 9, auf dessen Boden 10 die Oberfläche 7 des Stekkers 3 anliegt. Auf dem Boden 10 sind nach innen ragende, radial nach innen federnde, seitlich auf Abstand befindliche Verriegelungsarme 11 gruppiert angeordnet, wobei jede Gruppe aus mindestens zwei Armen 11 besteht, die in der Draufsicht betrachtet auf einem Kreis angeordnet sind, dessen Durchmesser etwas kleiner ist als der Durchmesser einer Kammer 4 im Bereich der Oberfläche 7 und die als Gruppe jeweils in eine Kammer 4 ragen, wobei sie etwa ein Drittel der Länge der Kammer einnehmen.The plug 3 is seated in an essentially cylindrical pot 9, on the bottom 10 of which the surface 7 of the plug 3 rests. On the bottom 10 inwardly projecting, radially inwardly resilient, laterally spaced locking arms 11 are arranged in groups, each group consisting of at least two arms 11, which, viewed in plan view, are arranged on a circle whose diameter is slightly smaller than the diameter of a chamber 4 in the area of the surface 7 and which each project as a group into a chamber 4, taking up about a third of the length of the chamber.

Der Topf 9 ist länger ausgeführt als der Stecker 3 und überragt die auf dem Stecker 3 sitzende Buchse 1 teilweise. Zweckmäßig ist, im Topf 9 noch im Bereich des Steckers 3 innen eine umlaufende Stufe 12 vorzusehen, so daß der Bereich 13 oberhalb der Stufe einen größeren Durchmesser aufweist als unterhalb, wobei der Stecker im unteren Bereich etwa formschlüssig im Topf 9 sitzt und oberhalb der Stufe an seiner Außenwandung, am Umfang verteilt Zentrierrippen 14 angeordnet sind, die sich gegen die Innenwandung des Bereichs 13 abstützen und vorzugsweise auf der Stufe 12 aufsitzen. Oberhalb der Stufe 12 ist die Innenwandung des Topfes 9 zylindrisch glatt ausgebildet.The pot 9 is longer than the plug 3 and partially extends beyond the socket 1 seated on the plug 3. It is expedient to provide a circumferential step 12 in the pot 9 in the area of the plug 3, so that the area 13 above the step has a larger diameter than below, the plug in the lower area being approximately form-fitting in the pot 9 and above the step centering ribs 14 are arranged on its outer wall, distributed around the circumference, which are supported against the inner wall of area 13 and are preferably seated on step 12. Above step 12, the inner wall of the pot 9 is cylindrical in shape.

Die Buchse 1 steckt ebenfalls in einem zylindrischen Topf 15, an dessen Boden 16 die Oberfläche 5 der Buchse anliegt, wobei vorzugsweise auf dem Boden 16 in gleicher Weise gleichgeformte und gleichwirkende Verriegelungsarme 11 gruppiert wie auf dem Boden 10 des Topfes 9 angeordnet sind, die jeweils in eine Kontaktkammer 2 greifen.The socket 1 is also inserted in a cylindrical pot 15, on the bottom 16 of which the surface 5 of the socket rests, preferably on the bottom 16 in the same way grouped and acting locking arms 11 grouped as on the bottom 10 of the pot 9, which are each arranged reach into a contact chamber 2.

Die Wandung 17 des Topfs 15 ist kürzer als die Länge der Buchse 1, ragt jedoch in den Topf 9. Dabei sitzt die Buchse 1 formschlüssig im Topf 15 und der Topf 15 formschlüssig im Topf 9. Zweckmäßigerweise sind im Bereich der Steckfläche 6 der Buchse 1 außen am Umfang verteilt Zentrierrippen 18a auf der Wandung 17a angeordnet, die sich von der Steckfläche 6 bis fast zum Rand der Wandung 17 erstrecken. Vorzugsweise verlaufen die Rippen 14 und 18a parallel zur Längsachse der Steckkupplung.The wall 17 of the pot 15 is shorter than the length of the socket 1, but protrudes into the pot 9. The socket 1 is positively seated in the pot 15 and the pot 15 is positively seated in the pot 9. In the area of the plug-in surface 6, the socket 1 is expedient Centering ribs 18a distributed on the outside of the circumference are arranged on the wall 17a and extend from the insertion surface 6 to almost the edge of the wall 17. The ribs 14 and 18a preferably run parallel to the longitudinal axis of the plug-in coupling.

Zweckmäßigerweise besitzt der Topf 15 im oberen Endbereich außen Anschläge, insbesondere in Form eines umlaufenden Ringstegs 18, der auf der Oberkante 19 des Topfs 9 aufsitzt und das Stecken begrenzt.The pot 15 expediently has stops on the outside in the upper end region, in particular in the form of a circumferential annular web 18, which rests on the upper edge 19 of the pot 9 and limits the insertion.

Zur Festsetzung der Steckkupplungsteile 1, 3, 9 und 15 miteinander weist der Topf 9 unterhalb der Oberkante 19 ein Außengewinde 20 auf. Auf das Außengewinde 20 ist eine Mutter 21 mit entsprechendem Innengewinde 22 geschraubt. Die Mutter 21 besitzt vorzugsweise im oberen Randbereich innen einen nach innen ragenden Ringbund 23, der aufgrund der Verschraubung gegen den Ringsteg 18 des Topfs 15 stößt, der wiederum auf die Oberkante 19 des Topfes 9 gedrückt wird. Dadurch wird eine Verklemmung der Kupplungsteile bewirkt, die ein Auseinanderziehen verhindert.To fix the plug-in coupling parts 1, 3, 9 and 15 together, the pot 9 has an external thread 20 below the upper edge 19. A nut 21 with a corresponding internal thread 22 is screwed onto the external thread 20. The nut 21 preferably has an inwardly projecting annular collar 23 in the upper edge region, which, owing to the screw connection, abuts the annular web 18 of the pot 15, which in turn is pressed onto the upper edge 19 of the pot 9. This causes the coupling parts to jam, which prevents them from being pulled apart.

Zweckmäßig ist die Verschraubung gegen selbsttätiges Lösen z. B. infolge von Vibration oder dgl. meachanischen Beanspruchungen zu sichern. Dies geschieht beispielsweise mit einem Seegerring 25. der in einer Außenringnut 24 des Topfs 15 lagert und gegen den die Oberkante 26 der Mutter 21 anliegt.The screw connection against automatic loosening z. B. as a result of vibration or the like. Mechanical stresses. This is done, for example, with a circlip 25, which is supported in an outer ring groove 24 of the pot 15 and against which the upper edge 26 of the nut 21 bears.

Zweckmäßig ist ferner die Steckkupplung gegen von außen eindringende Feuchtigkeit, beispielsweise Wasser, abzudichten. Die Abdichtung erfolgt vorzugsweise durch einen O-Ring 27, der in einer in der Wandung 17 des Topfs 15 eingebrachten Außenringnut 28 lagert und gegen die Innenwandung des Topfs 9 gedrückt wird.It is also expedient to seal the plug-in coupling against moisture penetrating from outside, for example water. Sealing is preferably carried out by an O-ring 27 which is supported in an outer ring groove 28 made in the wall 17 of the pot 15 and is pressed against the inner wall of the pot 9.

Die erfindungsgemäße Steckkupplung verfügt vorzugsweise auch über Verdrehschutzmittel. Vorgesehen ist vorzugsweise wenigstens eine in Längsrichtung verlaufende, nutförmige, randliche Ausnehmung 29, in der ein Steg 30 formschlüssig geführt wird. Die Verdrehschutzmittel sind in allen vier Hauptteilen vorhanden (Innenkörper 1 und 3, Außenkörper 9 und 15). Sie dienen bei der Montage der je zwei zueinandergehörigen Teile, z. B. 3, 9 und 1, 15, zum Verdrehschutz und der komplett montierten Teile 3, 9 und 1, 15 zueinander.The plug-in coupling according to the invention preferably also has anti-rotation means. At least one longitudinal groove-shaped, marginal recess 29 is preferably provided, in which a web 30 is guided in a form-fitting manner. The anti-rotation means are present in all four main parts (inner body 1 and 3, outer body 9 and 15). They are used for the assembly of two related parts, e.g. B. 3, 9 and 1, 15, to prevent rotation and the fully assembled parts 3, 9 and 1, 15 to each other.

Eine besondere Ausführungsform der Erfindung sieht vor, daß der Topf 15 mit der Buchse 1 ebenso wie der Topf 9 mit dem Stecker 3 verrastet ist. Zweckmäßigerweise bestehen die Rastmittel für die Topf-Buchsen-Kombination aus radialfedernden, am Umfang verteilten Rastarmen 31, die den Topf 15 nach unten überragen und eine einwärtsgerichtete Rastnase 32 besitzen. Die Rastarme 31 sind derart geformt, daß für den radialen Federweg zwischen der Innenwandung und den Armen ein Freiraum verbleibt. Die Rastnasen 32 hintergreifen jeweils am Außenmantel der Buchse 1 angeordnete Nocken 33. Öffnungen 35 im Boden 16 und Längsnuten 34 in der Buchse 1 ermöglichen beispielsweise, die Rastarme 31 mit einem Werkzeug zum Entrasten radial nach außen zu drücken.A special embodiment of the invention provides that the pot 15 is locked with the socket 1 as well as the pot 9 with the plug 3. The latching means for the pot-socket combination expediently consist of radially resilient latch arms 31 distributed over the circumference, which protrude downward from the pot 15 and have an inwardly directed latching lug 32. The locking arms 31 are shaped such that a free space remains for the radial spring travel between the inner wall and the arms. The latching lugs 32 engage behind cams 33 arranged on the outer jacket of the socket 1. Openings 35 in the base 16 and longitudinal grooves 34 in the socket 1 enable, for example, the latching arms 31 to be pressed radially outward with a tool for unlatching.

Eine gleiche Verrastung ist für die Topf-Stecker-Kombination vorgesehen. In Verlängerung der Wandung 9a des Topfes 9 nach oben sind Rastarme 31a mit einem radialen äußeren Freiraum angeordnet, die mit ihren Rastnasen 32a am Umfang des Steckers angeordnete Nocken 33a hintergreifen. Öffnungen 35a im Boden 10 sowie Längsnuten 34a im Stecker 3 ermöglichen auch eine Entrastung mit einem entsprechenden Werkzeug.The same locking mechanism is provided for the pot-plug combination. In the extension of the wall 9a of the pot 9 upwards, latching arms 31a are arranged with a radial outer free space, which engage with their latching lugs 32a behind cams 33a arranged on the circumference of the plug. Openings 35a in the base 10 and longitudinal grooves 34a in the plug 3 also enable unlatching with an appropriate tool.

Nach einer weiteren Ausführungsform der Erfindung finden die Rastnasen 32 bzw. 32a Vorrastnocken 36 bzw. 36a vor. Diese wirken mit den Verriegelungsarmen 11 bzw. 11a zusammen dergestalt, daß die Verriegelungsarme 11, 11a in der Vorraststellung sich achsparallel erstreckend in die Kammer 2 bzw. 4 ragen. Bei weiterem Ineinanderdrücken der Teile Topf-Buchse bzw. Topf-Stecker bis zur Endrastung gleiten die Verriegelungsarme 11, 11a auf einer konisch einwärtsgerichteten Ringläche 37 ab und werden radial einwärts gezwungen. Sie hintergreifen dabei eine Verriegelungskante eines elektrischen Rundsteckkontakts (nicht dargestellt), der vorher in die Kammer 2, 4 eingesetzt worden ist und dessen Leiterdraht aus den Öffnungen 38 bzw. 38a herausgeführt wird (nicht dargestellt).According to a further embodiment of the invention, the locking lugs 32 and 32a find pre-locking cams 36 and 36a. These act together with the locking arms 11 and 11a in such a way that the locking arms 11, 11a in the pre-locking position extend axially parallel into the chambers 2 and 4, respectively. If the parts socket-socket or socket-plug are pushed further into one another until the final catch, the locking arms 11, 11a slide on a conically inwardly directed annular surface 37 and are forced radially inwards. They engage behind a locking edge of an electrical circular plug contact (not shown) which has previously been inserted into the chambers 2, 4 and whose conductor wire is led out of the openings 38 and 38a (not shown).

Die neue Steckkupplung weist zweckmäßigerweise noch einen Flanschrand 39 auf, der über einen vorzugsweise elastischen Ring 40 gegen ein Blech 41 gesetzt ist, wobei der über dem Flanschrand 39 angeordnete Teil der Steckkupplung ein Loch 42 durchgreift. Zweckmäßigerweise ist der Außendurchmesser der Mutter 21 größer als der Durchmesser des Lochs 42 und liegt der untere Rand der Mutter 21 gegebenenfalls über einem elastischen Ring (nicht dargestellt) am Blech 41 an, so daß sich eine Verklemmung der Steckkupplung mit dem Blech ergibt.The new plug-in coupling expediently also has a flange 39 which is placed against a sheet metal 41 via a preferably elastic ring 40, the part of the plug-in coupling arranged above the flange 39 reaching through a hole 42. Advantageously, the outer diameter of the nut 21 is larger than the diameter of the hole 42 and the lower edge of the nut 21 is optionally on an elastic ring (not shown) on the sheet 41, so that there is a jamming of the plug coupling with the sheet.

Claims (25)

1. A coupling device for circular plug contacts crimped to electric conductors and comprising a plug (3) and a socket (1), circular pin bushings being preferably disposed in chambers (2) of the socket (1) and circular pins in chambers (4) of the plug (3), characterised by contact chambers (4) extending from the surface (7) of the plug (3) to a plug-in surface (8) of the plug (3), and contact chambers (2) extending from the surface (5) of the socket (1) to a plug-in surface (6) of the socket (1), the contact chambers (2, 4) being in line and facing on another when the coupling is plugged in, the plug (3) being disposed in a pot (9), the bottom (10) of which is adjacent the plug surface (7) and the pot (9) being made longer than the plug (3) and extending partly over the socket (1) on the plug (3), the socket (1) being disposed in a second pot (15) the bottom of which (16) is adjacent the socket surface (5), inwardly projecting, radially inwardly spring-mounted, laterally spaced locking arms (11) being arranged in groups on the bottom (10) of the first pot (9), each group projecting into a contact chamber (4), and similarly shaped, similarly acting second locking arms (11a) being arranged in groups in similar manner on the bottom (16) of the second pot (15) in the same way as on the bottom (10) of the first pot (9), each group extending into a contact chamber (2), an 0-ring (27) being mounted in an outer peripheral groove (28) formed in a wall (17) of the second pot (15) and being pressed against the inner wall of the first pot (9).
2. A coupling device according to claim 1, characterised in that it is made round and comprises a cylindrical socket (1) with spaced-apart contact chambers (2) extending parallel to the cylinder axis and a cylindrical plug (3) having similarly disposed contact chambers (4).
3. A coupling device according to claim 1 and/or 2, characterised in that the socket (1) and plug (3) have the same diameter.
4. A coupling device according to any of claims 1 to 3, characterised in that the plug (3) is disposed in a substantially cylindrical first pot (9).
5. A coupling device according to claim 1, characterised in that each group comprises at least two locking arms (11) which, as seen in plan view, are disposed on a circle having a diameter somewhat smaller than the diameter of a contact chamber (4) of plug (3) near surface (7), and a group preferably occupies about a third of the length of the contact chamber (4).
6. A coupling device according to any of claims 1 to 5, characterised in that a peripheral step (12) is formed on the inside of the first pot (9) near the plug (3) so that the region (13) above the step (12) has a greater diameter than below, the plug (3) resting approximately positively in the lower region in the first pot (9).
7. A coupling device according to any of claims 1 to 6, characterised in that the second pot (15) is substantially cylindrical.
8. A coupling device according to any of claims 1 to 7, characterised in that peripherally distributed centering ribs (14) are disposed on the outer wall of plug (3) above step (12) in the first pot (9) and bear against the inner wall of the region (13) above the step (12), on which they preferably rest.
9. A coupling device according to any of claims 1 to 8, characterised in that the inner wall of the first pot (9) is made cylindrical and flat above the step (12).
10. A coupling device according to any of claims 1 to 9, characterised in that the wall (17) of the second pot (15) is shorter than the length of the socket (1) and extends into the first pot (9). and the socket (1) rests positively in the second pot (15) and the second pot (15) rests positively in the first pot (9).
11. A coupling device according to any of claims 1 to 10, characterised in that external peripherally distributed centering rings (18a) are disposed on the walls (17a) of socket (1) near socket (6) and extend from surface (6) almost as far as the edge of wall (17) of the second pot (15).
12. A coupling device according to any of claims 1 to 11, characterised in that the centering ribs (14) and (18a) extend parallel to the longitudinal axis of the coupling.
13. A coupling device according to any of claims 1 to 12, characterised in that the top end region of the second pot (15) has an external abutment, more particularly in the form of a peripheral annular web (18), which rests on the top edge (19) of the first pot (9).
14. A coupling device according to any of claims 1 to 13, characterised in that the first pot (9) has an outer thread (20) below the top edge (19) for screwing a correspondingly internally threaded (22) nut (21) having an inwardly projecting annular collar (23) in the top edge region which, when screwed, abuts the annular web (18) of the second pot (15) which in turn is pressed against the top edge (19) of the first pot (9).
15. A coupling device according to any of claims 1 to 14, characterised by a Seeger ring (25) mounted in an outer annular groove (24) of the second pot (15) and bearing against the upper edge (26) of the nut (21).
16. A coupling device according to any of claims 1 to 15, characterised by an anti-twisting means, preferably comprising at least one groove-like edge recess (29) extending in the longitudinal direction of the plug-in coupling and one web (30) guided positively in the recess (29).
17. A coupling device according to any of claims 1 to 16, characterised in that the second pot (15) is locked to the socket (1) in the same manner as the first pot (9) is locked to the plug (3).
18. A coupling device according to claim 17, characterised in that the locking means for the pot-socket combination comprise radially spring-mounted, peripherally distributed locking arms (31) which project downwards beyond the second pot (15) and have an inwardly extending locking lug (32), each lug (32) extending locking lug (32), each lug (32) extending behind cams (33) disposed at the outer surface of the socket.
19. A coupling device according to claim 18, characterised by openings (35) in the bottom (16) of the second pot (15) and longitudinal grooves (34) in line therewith in the socket (1).
20. A coupling device according to claim 17, characterised in that the locking means for the pot-plug combination have upwardly extending locking arms (31 a) forming a continuation of the wall (9a) of the first pot (9) and having locking lugs (32a) which engage behind cams (33a) disposed on the periphery of the plug (3).
21. A coupling device according to claim 20, characterised by openings (35a) in the bottom (10) of the first pot (9), in the line with longitudinal grooves (34a) in the plug (3).
22. A coupling device according to any of claims 17 to 21, characterised in that pre-locking cams (36) and (36a) are disposed in front of cams (33), (33a) respectively of socket (1) and plug (3) respectively.
23. A coupling device according to any of claims 1 to 22, characterised in that when the coupling is plugged in, the locking arms (11, 11a) of the two pots (9, 15) each slide on a conically inward annular surface in chambers (2.4) and are forced radially inwards.
24. A coupling device according to any of claims 1 to 23, characterised by a flanged edge (29) of the first pot (9), which is mounted against a metal plate (41), preferably with interposition of a resilient ring (40), the part of the plug-in coupling disposed above the flanged edge (39) extending through a hole (42) in the metal plate (41).
25. A coupling device according to claims 14 and 24, characterised in that the outer diameter of the nut (21) is greater than the diameter of the hole (42) and the lower edge of the nut (21) abuts the plate (41), if required with interposition of a resilient ring.
EP19830110993 1983-01-28 1983-11-03 Coupling device Expired EP0117286B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3302924 1983-01-28
DE19833302924 DE3302924C3 (en) 1983-01-28 1983-01-28 Electrical connector

Publications (2)

Publication Number Publication Date
EP0117286A1 EP0117286A1 (en) 1984-09-05
EP0117286B1 true EP0117286B1 (en) 1986-12-30

Family

ID=6189491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830110993 Expired EP0117286B1 (en) 1983-01-28 1983-11-03 Coupling device

Country Status (3)

Country Link
EP (1) EP0117286B1 (en)
DE (1) DE3302924C3 (en)
ES (1) ES285335Y (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510895A1 (en) * 1985-03-26 1986-10-09 Grote & Hartmann ROUND SOCKET
DE3839014A1 (en) * 1988-11-18 1990-06-13 Kostal Leopold Gmbh & Co Kg Electrical plug connecting part
DE4102100A1 (en) * 1991-01-25 1992-08-06 Reinshagen Kabelwerk Gmbh ELECTRICAL CONNECTOR WITH A LOCKING PART FOR THE CONTACT ELEMENTS
DE4423961A1 (en) * 1994-07-07 1996-01-11 Grote & Hartmann Connectors
DE4423962A1 (en) * 1994-07-07 1996-01-11 Grote & Hartmann Connectors

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961996C (en) * 1952-10-10 1957-04-18 Plessey Co Ltd Electrical plug connection
DE1026390B (en) * 1956-03-01 1958-03-20 Sihn Kg Wilhelm Jun Connector
DE1790043A1 (en) * 1968-08-30 1971-12-02 Siemens Ag Multipole electrical connector
FR1600369A (en) * 1968-12-31 1970-07-20
US3573720A (en) * 1969-01-07 1971-04-06 Amp Inc Electrical connector
US3876275A (en) * 1970-10-26 1975-04-08 Deutsch Co Elec Comp Arrangement for retaining electrical connector insert
AT321396B (en) * 1972-10-11 1975-03-25 A K G Akustische U Kino Geraet Plug assembled without screws
DE7739743U1 (en) * 1977-12-27 1979-07-26 Kabelwerke Reinshagen Gmbh, 5600 Wuppertal Housing for electrical plug connection
JPS5498987A (en) * 1978-01-20 1979-08-04 Nissan Motor Waterproof connector
US4355855A (en) * 1979-02-07 1982-10-26 Dimitri Rebikoff Deep water connector
EP0052540A3 (en) * 1980-11-14 1982-06-09 The Bendix Corporation Molded plastic connector
US4361376A (en) * 1980-11-14 1982-11-30 The Bendix Corporation Electrical connector
DE8235702U1 (en) * 1982-12-18 1984-10-25 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Locking device for an electrical contact element plugged into a housing chamber

Also Published As

Publication number Publication date
EP0117286A1 (en) 1984-09-05
DE3302924C2 (en) 1989-01-12
DE3302924A1 (en) 1984-08-02
ES285335Y (en) 1986-08-01
DE3302924C3 (en) 1995-09-21
ES285335U (en) 1986-01-01

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