EP0494438B1 - Cable end fitting device - Google Patents

Cable end fitting device Download PDF

Info

Publication number
EP0494438B1
EP0494438B1 EP91122139A EP91122139A EP0494438B1 EP 0494438 B1 EP0494438 B1 EP 0494438B1 EP 91122139 A EP91122139 A EP 91122139A EP 91122139 A EP91122139 A EP 91122139A EP 0494438 B1 EP0494438 B1 EP 0494438B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
cable
cable end
terminal contact
contact
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
EP91122139A
Other languages
German (de)
French (fr)
Other versions
EP0494438A2 (en
EP0494438A3 (en
Inventor
Wolfgang B. THÖRNER
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE4100600A external-priority patent/DE4100600A1/en
Application filed by Individual filed Critical Individual
Publication of EP0494438A2 publication Critical patent/EP0494438A2/en
Publication of EP0494438A3 publication Critical patent/EP0494438A3/en
Application granted granted Critical
Publication of EP0494438B1 publication Critical patent/EP0494438B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0521—Connection to outer conductor by action of a nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5033—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using wedge or pin penetrating into the end of a wire in axial direction of the wire

Definitions

  • the invention relates to a device for connecting a cable end cut perpendicular to its longitudinal axis to a plug body, a socket body or an electrical device according to the preamble of claim 1, as is already known from DE-A-2 923 399.
  • Such a device is also known for example from DE-OS 25 10 299.
  • a complex special tool is required to establish the connection in order to press the end of the cable end against the plug body and to hold it in this position.
  • the clamping contact is produced in a subsequent operation by screwing the metal contact sharpened at the front through the plug body into the cable end, which in turn requires a separate screwing tool.
  • the sleeve is pressed over the contact point by means of a hexagonal press.
  • the known device therefore requires several special tools and several successive operations for connection to a cable end.
  • a similar device is also known from DE-GM 79 03 554.
  • a crimpable sleeve forming the strain relief is entirely missing. Instead, radial pressure forces are exerted on the outer insulation of the cable end by means of the housing halves of the plug body.
  • the bluntly cut cable end must first be pushed by hand onto the contact or contacts sharpened at the front. Then the halves of the housing must be placed around the cable end and pressed together with great force in order to generate the required radial compressive forces. Care must be taken to ensure that the clamping contacts, which are initially only loosely inserted into the cable end, do not slip out of the cable end before the required compressive stress is generated. If the procedure is not careful, the quality of the clamping contact thus produced leaves something to be desired.
  • the invention proposes, starting from the device of the type mentioned, that the sleeve, together with the cable end located therein, can be pushed axially over the electrical clamping contact by means of the screw thread of a union nut, and the cable end radially in the region of the axially penetrating clamping contact is pressed together.
  • the device according to the invention is characterized primarily by a particularly simple assembly without any special tools.
  • the sleeve is pushed onto the blunt cut cable end from the front and then pushed together with the cable end axially over the electrical clamp contacts.
  • the large force in the axial direction required for this slide-on operation is generated exclusively with the screw thread of the union nut.
  • the clamp contact which is sharpened at the front, penetrates into the stranded wire of the cable end and makes electrical contact with it.
  • the terminal contact penetrates, the insulating material of the cable is displaced radially outwards. This creates a radial compressive stress inside the sleeve.
  • a particular advantage is that the electrical contact is made within the insulation, which is under high radial compressive stress, so that the contact points are largely hermetically sealed by the insulating material.
  • the electrical contacts produced in this way are sealed particularly securely against corrosive environmental influences, so that contact errors caused by contact corrosion are reliably and permanently avoided.
  • the sleeve In order to facilitate the radial deformability of the sleeve, it can be provided with one or more longitudinal slots or consist of a correspondingly deformable material.
  • the inside of the sleeve serving as strain relief is expediently provided with a profile which increases the friction between the sleeve and the outer insulation of the cable. Such profiling is pressed into the outer insulation from the outside and in this way increases the frictional contact between the sleeve and the cable considerably, which further increases the mechanical strength of the strain relief.
  • the clamp contact which is sharpened at the front, is expediently designed as a mandrel which is provided on the outside with a sawtooth profile.
  • This sawtooth profiling improves contacting in the area of the conductor strand. This is because, at least in the area of the sawtooth tips, it produces good galvanic contacts to the wires of the conductor strand.
  • the clamping contact for the inner conductor strand is expediently designed as a mandrel and the clamping contact for the outer conductor as a knife contact concentrically surrounding the mandrel, the diameter of which corresponds to the diameter of the outer conductor.
  • the device can advantageously be used for coaxial cables in which the connection is normally particularly labor-intensive because of the large number of contacts to be produced.
  • the assembly effort for the connection to the end of a coaxial cable is in no way different from the assembly effort for a normal, single-stranded cable.
  • the pointed end of the mandrel projects beyond the sharpened end of the knife contact. This simplifies the insertion of the mandrel into the inner conductor strand and gives the cable end a guide in the longitudinal direction of the knife contact before the knife contact penetrates.
  • a threaded hole running transversely to the coaxial cable is provided in the union nut of the coaxial cable, into which a mandrel screw for contacting the outer conductor of the coaxial cable can be screwed is. If required, this mandrel screw can be used to make electrical contact between the outer outer conductor and the plug body, socket body or housing of the electrical device.
  • the cinch (RCA) connector shown in FIG. 1 is constructed conventionally on the connector side. It consists of a metallic connector body 1, the connector side is provided with an outer ring contact 2 and a contact pin 3, which are electrically separated from each other by an insulating sleeve 4.
  • the outer ring contact 2 is conical on its outside and divided into several tongues by longitudinal slots, not shown in the drawing, which can be compressed in the manner of a collet mechanism.
  • a support ring 5 is used, which bears from the outside on the conical surface of the outer ring contact 2 and is rotatably and non-rotatably mounted at the front end of a jacket sleeve surrounding the plug body 1 and is axially adjustable together with it.
  • the coaxial cable 11 has an inner conductor 12 consisting of a multiplicity of fine wires and a tubular outer conductor 13 which can consist, for example, of a fine wire mesh. Between the inner conductor 12 and the outer conductor 13 there is an insulating layer 14, which consists of a suitable plastic with dielectric properties. On its outside, the outer conductor 13 is surrounded by an outer insulation 15, which is also made of a suitable plastic.
  • An additional outer conductor 13a can optionally be embedded between the outer insulation 15 and the outer conductor 13, which serves to shield magnetic interference fields and can consist of a metal foil suitable for this purpose.
  • connection-side end of the coaxial cable 11 is cut in a section plane running perpendicular to the longitudinal axis of the cable and is surrounded by a sleeve 16 lying on the outer insulation 15, which is provided on its inside with a friction-increasing profile 17 and serves as strain relief.
  • the plug body 1 is provided in the center with a mandrel 18, the longitudinal axis of which coincides with the longitudinal axis of the coaxial cable 11 and the tip of which points in the direction of the coaxial cable 11 to be connected.
  • This mandrel has a sawtooth profile and is electrically conductively connected to the contact pin 3.
  • the mandrel 18 is surrounded at a distance by an annular knife contact 19, the sharpened side of which also faces the coaxial cable 11 to be connected and whose diameter corresponds approximately to the diameter of the outer conductor 13 of the coaxial cable 11.
  • This knife contact 19 is connected to the outer ring contact 2 in an electrically conductive manner.
  • the sleeve 16 serving as strain relief is provided at its front end with a conical surface 16a and lies with its outer surface against an outer support ring 20 which is integrally connected to the plug body 1 and at its rear end a counter-conical surface 20a to the conical surface 16a of the sleeve 16 having. Furthermore, the sleeve 16 is designed to be radially deformable, which can be done either by providing it with one or more longitudinal slots or by manufacturing it from a correspondingly deformable material. The rear end of the sleeve 16 abuts a shoulder 21 of the union nut 9. The union nut 9 is provided with an internal thread 22 which engages in an external thread 23 of the plug body 1.
  • the coaxial cable 11 is first cut smoothly perpendicular to its longitudinal axis. Then the union nut 9 is pushed onto the end of the coaxial cable so that its thread faces forward. Subsequently, the sleeve 16 is pushed over the smoothly cut end of the coaxial cable 11 and advanced together with the coaxial cable 11 so far in the direction of the mandrel / knife contact arrangement 18, 19 that the cone surface 16a of the sleeve 16 abuts the counter-cone surface 20a of the support ring 20. The union nut 9 is then screwed onto the plug body 1.
  • the sleeve 16 When the union nut is screwed onto the plug body 1, the sleeve 16 is pushed with great force over the mandrel / knife contact arrangement 18, 19 by the shoulder 21 of the union nut 9. First, the tip of the mandrel 18 penetrates into the inner conductor strand 12 of the coaxial cable 11 and produces an electrical clamping contact there. In the same way, the knife contact 19 penetrates with its sharpened end in the area of the outer conductor 13 into the end of the coaxial cable 11 and establishes an electrical clamping contact with the outer conductor 13.
  • the sleeve 16 is radially compressed by the axial displacement and the conical surfaces 16a and 20a, so that the end of the coaxial cable 1 located in the sleeve 16 is subjected to a strong compressive stress.
  • This compressive stress increases the intensity of the electrical terminal contacts and hermetically seals the contact points against external influences.
  • the exemplary embodiment according to FIG. 2 shows a banana plug which is constructed conventionally on the plug side.
  • This banana plug is provided on the outer circumference with an insulating grip sleeve 30 which surrounds an inner metallic plug body 31.
  • the plug body 31 contains a metallic contact piece 32, which is connected at its front to the metallic plug pin 33 of the banana plug.
  • This plug pin 33 is hollow and longitudinally formed and can be spread out by means of a spreading mechanism.
  • This expansion mechanism consists of a tension bolt 34 arranged in the interior of the plug pin, which has at its outer end with a conical expansion head 35 and at its plug end cross bolts 36, which bear on screw surfaces 37 of a rotatable sleeve head 38, which is rotatable at the front end of the grip sleeve 30 is stored and how it consists of insulating material.
  • the screw surfaces 37 of the sleeve head 38 are inclined towards the axial direction in such a way that when the sleeve head 38 is rotated, a tensile force is exerted on the tension bolt 34, by means of which the plug pin 33 is spread apart and fixed in its insertion opening.
  • the banana plug according to FIG. 2 is constructed largely similar to the cinch plug shown in FIG. 1.
  • the same reference numerals are therefore used below for the corresponding parts.
  • a union nut 9 is provided, which can be screwed onto the plug body 31 by means of a thread 22, 23 and has an external thread 8 on the outer circumference, onto which the grip sleeve 30 can be screwed.
  • the union nut 9 is also provided here with an opening 10 for the passage of a cable 39, which here only has an internal conductor strand 40 consisting of fine wires.
  • This conductor strand 40 of the cable 39 is surrounded by an outer insulation 41 made of plastic.
  • connection-side end of the cable 39 is cut off perpendicular to the longitudinal axis of the cable and is surrounded by a sleeve 16 lying against the outer insulation 41, which is provided on its inside with a friction-increasing profile 17 and serves as strain relief.
  • the contact piece 32 arranged in the plug body 31 is provided in the center on the cable connection side with a mandrel 18, the longitudinal axis of which coincides with the longitudinal axis of the cable 39 and the tip of which points in the direction of the cable 39 to be connected.
  • the sleeve 16 serving as a strain relief is also provided at its front end with a conical surface 16a and lies with its outer surface against an outer support ring 20 which is integral with the plug body 31 is connected and has at its rear end a conical surface 20a to the conical surface 16a of the sleeve 16. Furthermore, the sleeve 16 is also radially deformable, which can either be done by providing one or more longitudinal slots or by being made from a correspondingly deformable material. The rear end of the sleeve 16 abuts a shoulder 21 of the union nut 9.
  • the sleeve 16 is pushed together with the inner cable 39 with great force axially onto the mandrel 18 and at the same time deformed radially inward, so that a very strong compressive stress builds up between the mandrel 18 and the conductor strand 40 of the cable 39, which one establishes intensive electrical clamping contact and largely shields the contact point against external influences.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Cable Accessories (AREA)
  • Multi-Conductor Connections (AREA)
  • Processing Of Terminals (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

The invention relates to a device for connecting a cable end which has been cut off at right angles to its longitudinal axis to a plug body, a socket body or an electrical apparatus, having at least one terminal contact (18) which penetrates from the end into the conductor braid (40) of the cable end and is sharpened at the front, and having tension relief which consists of a sleeve (16) which can be pushed over the cable end and can be pressed against the external insulation (41) of the cable end, by radial deformation. In order to be able to assemble such a device on a cable end, with secure retention and a terminal contact which cannot become loose, without special tools, the invention proposes that the sleeve (16) together with the cable end located in it is able to be pushed over the electrical terminal contact (18) axially, by means of the screw thread (22, 23) of a screw cap (9), and in this case be supported by means of its external surface on an external supporting ring (20), the support of the sleeve (16) on the supporting ring (20) being constructed in such a manner that the sleeve (16) is radially compressed during its axial displacement. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung für den Anschluß eines senkrecht zu seiner Längsachse abgeschnittenen Kabelendes an einen Steckerkörper, einen Buchsenkörper oder ein elektrisches Gerät nach dem Oberbegriff des Anspruchs 1, wie diese bereits aus DE-A-2 923 399 bekannt ist.The invention relates to a device for connecting a cable end cut perpendicular to its longitudinal axis to a plug body, a socket body or an electrical device according to the preamble of claim 1, as is already known from DE-A-2 923 399.

Eine derartige Vorrichtung ist beispielsweise auch aus der DE-OS 25 10 299 bekannt. Bei dieser bekannten Vorrichtung wird bei der Herstellung der Verbindung ein aufwendiges Spezialwerkzeug benötigt, um das Kabelende mit seiner Stirnseite gegen den Steckerkörper anzupressen und in dieser Position festzuhalten. Der Klemmkontakt wird in einem sich anschließenden Arbeitsgang dadurch hergestellt, daß der vorne zugeschärfte metallische Kontakt durch den Steckerkörper hindurch in das Kabelende eingeschraubt wird, wozu wiederum ein gesondertes Schraubwerkzeug notwendig ist. Schließlich wird in einem abschließenden Arbeitsgang die Hülse mittels einer Sechskantpresse über der Kontaktstelle angedrückt. Die bekannte Vorrichtung erfordert also für den Anschluß an ein Kabelende mehrere Spezialwerkzeuge und mehrere aufeinander folgende Arbeitsgänge.Such a device is also known for example from DE-OS 25 10 299. In this known device, a complex special tool is required to establish the connection in order to press the end of the cable end against the plug body and to hold it in this position. The clamping contact is produced in a subsequent operation by screwing the metal contact sharpened at the front through the plug body into the cable end, which in turn requires a separate screwing tool. Finally, in a final work step, the sleeve is pressed over the contact point by means of a hexagonal press. The known device therefore requires several special tools and several successive operations for connection to a cable end.

Eine ähnliche Vorrichtung ist auch aus dem DE-GM 79 03 554 bekannt. Dort fehlt indessen eine die Zugentlastung bildende, aufquetschbare Hülse ganz. Stattdessen werden hier mittels der Gehäusehälften des Steckerkörpers radiale Druckkräfte auf die Außenisolierung des Kabelendes ausgeübt. Bei dieser Vorrichtung muß zunächst das stumpf abgeschnittene Kabelende von Hand auf den oder die vorn zugeschärften Kontakte aufgeschoben werden. Anschließend müssen die Gehäusehälften um das Kabelende gelegt werden und mit großer Kraft zusammengepreßt werden, um die erforderlichen radialen Druckkräfte zu erzeugen. Dabei muß sorgfältig darauf geachtet werden, daß die zunächst nur lose in das Kabelende eingeschobenen Klemmkontakte vor der Erzeugung der erforderlichen Druckspannung nicht aus dem Kabelende herausrutschen. Bei diesbetreffend nicht sorgfältiger Arbeitsweise läßt die Qualität des so hergestellten Klemmkontaktes zu wünschen übrig.A similar device is also known from DE-GM 79 03 554. There, however, a crimpable sleeve forming the strain relief is entirely missing. Instead, radial pressure forces are exerted on the outer insulation of the cable end by means of the housing halves of the plug body. In this device, the bluntly cut cable end must first be pushed by hand onto the contact or contacts sharpened at the front. Then the halves of the housing must be placed around the cable end and pressed together with great force in order to generate the required radial compressive forces. Care must be taken to ensure that the clamping contacts, which are initially only loosely inserted into the cable end, do not slip out of the cable end before the required compressive stress is generated. If the procedure is not careful, the quality of the clamping contact thus produced leaves something to be desired.

Es ist Aufgabe der Erfindung, die Vorrichtung der eingangs genannten Art dahingehend weiterzubilden, daß sie ohne Spezialwerkzeuge in einem wesentlich vereinfachten Arbeitsgang montierbar ist, dem Kabelende einen besseren Halt verschafft und einen absolut lockerungsfreien, korrosionsgeschützten Klemmkontakt mit der oder den Leiterlitzen des Kabelendes herstellt.It is an object of the invention to develop the device of the type mentioned in such a way that it can be assembled without special tools in a substantially simplified operation, gives the cable end a better grip and produces an absolutely looseness-free, corrosion-protected clamp contact with the stranded wire or strands of the cable end.

Zur Lösung dieser Aufgabe schlägt die Erfindung ausgehend von der Vorrichtung der eingangs genannten Art vor, daß die Hülse zusammen mit dem in ihr befindlichen Kabelende mittels des Schraubgewindes einer Überwurfmutter axial über den elektrischen Klemmkontakt schiebbar ist und dabei das Kabelende im Bereich des axial eindringenden Klemmkontaktes radial zusammengepreßt wird.To achieve this object, the invention proposes, starting from the device of the type mentioned, that the sleeve, together with the cable end located therein, can be pushed axially over the electrical clamping contact by means of the screw thread of a union nut, and the cable end radially in the region of the axially penetrating clamping contact is pressed together.

Die Vorrichtung gemäß der Erfindung zeichnet sich in erster Linie durch eine besonders einfache Montage ohne jedes Spezialwerkzeug aus. Für die Montage wird die Hülse von der Stirnseite her auf das stumpf abgeschnittene Kabelende aufgesteckt und anschließend zusammen mit dem Kabelende axial über die elektrischen Klemmkontakte geschoben. Die für diesen Aufschiebevorgang erforderliche große Kraft in axialer Richtung wird ausschließlich mit Hilfe des Schraubgewindes der Überwurfmutter erzeugt. Bei dem Aufschiebevorgang dringt der vorne zugeschärfte Klemmkontakt in die Leiterlitze des Kabelendes ein und stellt einen elektrischen Kontakt mit dieser her. Beim Eindringen des Klemmkontaktes wird das Isoliermaterial des Kabels radial nach außen verdrängt. Hierdurch baut sicht innerhalb der Hülse eine radiale Druckspannung auf. Aufgrund dieser Druckspannung legt sich die Außenisolierung des Kabels an die Innenwand der Hülse an, so daß eine innige Verbindung zwischen der Hülse und der Außenisolierung entsteht. Zugleich mit ihrer axialen Verschiebung wird die Hülse in ein und demselben Arbeitsgang von dem sie umgebenden Stützring radial zusammengepreßt. Die hierdurch noch weiter erhöhten Druckspannungen innerhalb der Hülse erzeugen starke Klemmkräfte zwischen dem Klemmkontakt und der Leiterlitze der lockerungsfrei bleibt, weil die Hülse ständig an dem sie umgebenden Stützring abgestützt bleibt und sich dementsprechend nicht zurückverformen kann.The device according to the invention is characterized primarily by a particularly simple assembly without any special tools. For assembly, the sleeve is pushed onto the blunt cut cable end from the front and then pushed together with the cable end axially over the electrical clamp contacts. The large force in the axial direction required for this slide-on operation is generated exclusively with the screw thread of the union nut. During the slide-open process, the clamp contact, which is sharpened at the front, penetrates into the stranded wire of the cable end and makes electrical contact with it. When the terminal contact penetrates, the insulating material of the cable is displaced radially outwards. This creates a radial compressive stress inside the sleeve. Because of this compressive stress, the outer insulation of the cable lies against the inner wall of the sleeve, so that an intimate connection is created between the sleeve and the outer insulation. At the same time as its axial displacement, the sleeve is radially compressed in one and the same operation by the support ring surrounding it. The thereby further increased compressive stresses within the sleeve generate strong clamping forces between the clamping contact and the stranded wire which remains loose because the sleeve is constantly supported on the surrounding support ring and accordingly cannot deform back.

Ein besonderer Vorteil besteht noch darin, daß der elektrische Kontakt innerhalb der unter hoher radialer Druckspannung stehenden Isolierung hergestellt wird, so daß die Kontaktstellen weitestgehend hermetisch dicht von dem Isoliermaterial umhüllt sind. Infolgedessen sind die derart hergestellten elektrischen Kontakte besonders sicher gegen korrodierende Umgebungseinflüsse abgedichtet, so daß auch Kontaktfehler durch Kontaktkorrosion sicher und dauerhaft vermieden werden.A particular advantage is that the electrical contact is made within the insulation, which is under high radial compressive stress, so that the contact points are largely hermetically sealed by the insulating material. As a result, the electrical contacts produced in this way are sealed particularly securely against corrosive environmental influences, so that contact errors caused by contact corrosion are reliably and permanently avoided.

Um die radiale Verformbarkeit der Hülse zu erleichtern, kann diese mit einem oder mehreren Längsschlitzen versehen sein oder aus einem entsprechend verformbaren Material bestehen.In order to facilitate the radial deformability of the sleeve, it can be provided with one or more longitudinal slots or consist of a correspondingly deformable material.

Zweckmäßig ist die als Zugentlastung dienende Hülse an ihrer Innenseite mit einer die Reibung zwischen der Hülse und der Außenisolierung des Kabels erhöhenden Profilierung versehen. Eine solche Profilierung drückt sich von außen in die Außenisolierung ein und erhöht auf diese Weise den Reibungskontakt zwischen der Hülse und dem Kabel beträchtlich, wodurch die mechanische Festigkeit der Zugentlastung noch weiter gesteigert wird.The inside of the sleeve serving as strain relief is expediently provided with a profile which increases the friction between the sleeve and the outer insulation of the cable. Such profiling is pressed into the outer insulation from the outside and in this way increases the frictional contact between the sleeve and the cable considerably, which further increases the mechanical strength of the strain relief.

Der vorne zugeschärfte Klemmkontakt ist zweckmäßig als Dorn ausgebildet, der an seiner Außenseite mit einer Sägezahnprofilierung versehen ist. Diese Sägezahnprofilierung verbessert die Kontaktierung im Bereich der Leiterlitze. Sie stellt nämlich zumindest im Bereich der Sägezahnspitzen gute galvanische Kontakte zu den Drähten der Leiterlitze her.The clamp contact, which is sharpened at the front, is expediently designed as a mandrel which is provided on the outside with a sawtooth profile. This sawtooth profiling improves contacting in the area of the conductor strand. This is because, at least in the area of the sawtooth tips, it produces good galvanic contacts to the wires of the conductor strand.

Für die Verwendung an einem Koaxialkabel ist der Klemmkontakt für die Innenleiterlitze zweckmäßig als Dorn und der Klemmkontakt für den Außenleiter als den Dorn konzentrisch umgebender Messerkontakt ausgebildet, dessen Durchmesser dem Durchmesser des Außenleiters entspricht. Auf diese Weise ist die Vorrichtung mit Vorteil für Koaxialkabel verwendbar, bei denen der Anschluß normalerweise wegen der Vielzahl der herzustellenden Kontakte besonders arbeitsaufwendig ist. Der Montageaufwand für den Anschluß an das Ende eines Koaxialkabels unterscheidet sich in keiner Weise von dem Montageaufwand für ein normales, einlitziges Kabel.For use on a coaxial cable, the clamping contact for the inner conductor strand is expediently designed as a mandrel and the clamping contact for the outer conductor as a knife contact concentrically surrounding the mandrel, the diameter of which corresponds to the diameter of the outer conductor. In this way, the device can advantageously be used for coaxial cables in which the connection is normally particularly labor-intensive because of the large number of contacts to be produced. The assembly effort for the connection to the end of a coaxial cable is in no way different from the assembly effort for a normal, single-stranded cable.

Bei einer Verwendung der Kombination Dorn-/Messerkontakt überragt der Dorn mit seinem spitzen Ende das angeschärfte Ende des Messerkontaktes. Hierdurch vereinfacht sich die Einführung des Dornes in die Innenleiterlitze und erteilt dem Kabelende bereits vor dem Eindringen des Messerkontaktes eine Führung in Längsrichtung des Messerkontaktes.When using the combination mandrel / knife contact, the pointed end of the mandrel projects beyond the sharpened end of the knife contact. This simplifies the insertion of the mandrel into the inner conductor strand and gives the cable end a guide in the longitudinal direction of the knife contact before the knife contact penetrates.

Bei Verwendung des Steckers in Verbindung mit einem Koaxialkabel, welches einen zusätzlichen äußeren Außenleiter, beispielsweise zur Abschirmung von magnetischen Störfeldern aufweist, ist in der Überwurfmutter des Koaxialsteckers eine quer zum Koaxialkabel verlaufende Gewindebohrung vorgesehen, in welche eine Dornschraube zur Kontaktierung des äußeren Außenleiters des Koaxialkabels einschraubbar ist. Mit dieser Dornschraube kann im Bedarfsfall ein elektrischer Kontakt zwischen dem äußeren Außenleiter und dem Steckerkörper, Buchsenkörper oder Gehäuse des elektrischen Gerätes hergestellt werden.When using the connector in connection with a coaxial cable, which has an additional outer conductor, for example for shielding against magnetic interference fields, a threaded hole running transversely to the coaxial cable is provided in the union nut of the coaxial cable, into which a mandrel screw for contacting the outer conductor of the coaxial cable can be screwed is. If required, this mandrel screw can be used to make electrical contact between the outer outer conductor and the plug body, socket body or housing of the electrical device.

Zwei Ausführungsbeispiele der Erfindung werden im folgenden anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
einen Längsschnitt durch eine Vorrichtung gemäß der Erfindung an einem Cinch (RCA)-Stecker;
Fig. 2
einen Längsschnitt durch eine Vorrichtung gemäß der Erfindung an einem Bananenstecker.
Two embodiments of the invention are explained in more detail below with reference to the drawing. Show it:
Fig. 1
a longitudinal section through a device according to the invention on a cinch (RCA) connector;
Fig. 2
a longitudinal section through a device according to the invention on a banana plug.

Der in Figur 1 dargestellte Cinch (RCA)-Stecker ist steckerseitig herkömmmlich aufgebaut. Er besteht aus einem metallischen Steckerkörper 1, der steckerseitig mit einem Außenringkontakt 2 und einem Kontaktstift 3 versehen ist, die durch eine Isolierhülse 4 elektrisch voneinander getrennt sind. Der Außenringkontakt 2 ist an seiner Außenseite konisch ausgebildet und durch in der Zeichnung nicht näher dargestellte Längsschlitze in mehrere Zungen unterteilt, die nach Art eines Spannzangenmechanismus zusammenpreßbar sind. Beim Zusammenpressen dient ein Stützring 5, der von außen an der Konusfläche des Außenringkontaktes 2 anliegt und am vorderen Ende einer den Steckerkörper 1 umgebenden Mantelhülse zug- und druckfest jedoch drehbar gelagert ist und zusammen mit diesem axial verstellbar ist. Diese axiale Verstellung, die der Betätigung des Spannzangenmechanismus dient, erfolgt mittels eines Innengewindes 7 der Mantelhülse 6, welche in ein Außengewinde 8 am Außenumfang einer auf den Steckerkörper 1 aufgeschraubten Überwurfmutter 9 eingreift, deren Funktion weiter unte erläutert wird.The cinch (RCA) connector shown in FIG. 1 is constructed conventionally on the connector side. It consists of a metallic connector body 1, the connector side is provided with an outer ring contact 2 and a contact pin 3, which are electrically separated from each other by an insulating sleeve 4. The outer ring contact 2 is conical on its outside and divided into several tongues by longitudinal slots, not shown in the drawing, which can be compressed in the manner of a collet mechanism. When pressed together, a support ring 5 is used, which bears from the outside on the conical surface of the outer ring contact 2 and is rotatably and non-rotatably mounted at the front end of a jacket sleeve surrounding the plug body 1 and is axially adjustable together with it. This axial adjustment, which serves to actuate the collet mechanism, takes place by means of an internal thread 7 of the jacket sleeve 6, which engages in an external thread 8 on the outer circumference of a union nut 9 screwed onto the plug body 1, the function of which will be explained further below.

Kabelanschlußseitig ist die Überwurfmutter 9 mit einer Öffnung 10 für den Durchtritt eines Koaxialkabels 11 versehen. Das Koaxialkabel 11 weist einen aus einer Vielzahl von feinen Drähten bestehenden Innenleiter 12 und einen schlauchförmigen Außenleiter 13 auf, der beispielsweise aus einem feinen Drahtgewebe bestehen kann. Zwischen dem Innenleiter 12 und dem Außenleiter 13 befindet sich eine Isolierschicht 14, die aus einem geeigneten Kunststoff mit dielektrischen Eigenschaften besteht. An seiner Außenseite ist der Außenleiter 13 von einer Außenisolierung 15 umgeben, die ebenfalls aus einem geeigneten Kunststoff besteht.On the cable connection side, the union nut 9 is provided with an opening 10 for the passage of a coaxial cable 11. The coaxial cable 11 has an inner conductor 12 consisting of a multiplicity of fine wires and a tubular outer conductor 13 which can consist, for example, of a fine wire mesh. Between the inner conductor 12 and the outer conductor 13 there is an insulating layer 14, which consists of a suitable plastic with dielectric properties. On its outside, the outer conductor 13 is surrounded by an outer insulation 15, which is also made of a suitable plastic.

Zwischen der Außenisolierung 15 und dem Außenleiter 13 kann gegebenenfalls ein zusätzlicher äußerer Außenleiter 13a eingebettet sein, der der Abschirmung von magnetischen Störfeldern dient und aus einer hierfür geeigneten Metallfolie bestehen kann.An additional outer conductor 13a can optionally be embedded between the outer insulation 15 and the outer conductor 13, which serves to shield magnetic interference fields and can consist of a metal foil suitable for this purpose.

Das anschlußseitige Ende des Koaxialkabels 11 ist in einer senkrecht zur Längsachse des Kabels verlaufenden Schnittebene abgeschnitten und wird von einer an der Außenisolierung 15 einliegenden Hülse 16 umgeben, die an ihrer Innenseite mit einer die Reibung erhöhenden Profilierung 17 versehen ist und als Zugentlastung dient. Der Steckerkörper 1 ist mittig mit einem Dorn 18 versehen, dessen Längsachse mit der Längsachse des Koaxialkabels 11 zusammenfällt und dessen Spitze in Richtung auf das anzuschließende Koaxialkabel 11 weist. Dieser Dorn weist ein Sägezahnprofil auf und ist mit dem Kontaktstift 3 elektrisch leitend verbunden. Der Dorn 18 wird mit Abstand von einem ringförmigen Messerkontakt 19 umgeben, dessen zugeschärfte Seite ebenfalls dem anzuschließenden Koaxialkabel 11 zugewandt ist und dessen Durchmesser ungefähr dem Durchmesser des Außenleiters 13 des Koaxialkabels 11 entspricht. Dieser Messerkontakt 19 steht elektrisch leitend mit dem Außenringkontakt 2 in Verbindung.The connection-side end of the coaxial cable 11 is cut in a section plane running perpendicular to the longitudinal axis of the cable and is surrounded by a sleeve 16 lying on the outer insulation 15, which is provided on its inside with a friction-increasing profile 17 and serves as strain relief. The plug body 1 is provided in the center with a mandrel 18, the longitudinal axis of which coincides with the longitudinal axis of the coaxial cable 11 and the tip of which points in the direction of the coaxial cable 11 to be connected. This mandrel has a sawtooth profile and is electrically conductively connected to the contact pin 3. The mandrel 18 is surrounded at a distance by an annular knife contact 19, the sharpened side of which also faces the coaxial cable 11 to be connected and whose diameter corresponds approximately to the diameter of the outer conductor 13 of the coaxial cable 11. This knife contact 19 is connected to the outer ring contact 2 in an electrically conductive manner.

Die als Zugentlastung dienende Hülse 16 ist an ihrem vorderen Ende mit einer Konusfläche 16a versehen und liegt mit ihrer Außenfläche an einem äußeren Stützring 20 an, der einstückig mit dem Steckerkörper 1 verbunden ist und an seinem rückwärtigen Ende eine Gegenkonusfläche 20a zur Konusfläche 16a der Hülse 16 aufweist. Weiterhin ist die Hülse 16 radial verformbar ausgebildet, was entweder dadurch geschehen kann, daß sie mit einem oder mehreren Längsschlitzen versehen ist oder daß sie aus einem entsprechend verformbaren Material gefertigt ist. Die Hülse 16 liegt mit ihrem rückwärtigen Ende an einer Schulter 21 der Überwurfmutter 9 an. Die Überwurfmutter 9 ist mit einem Innengewinde 22 versehen, welches in ein Außengewinde 23 des Steckerkörpers 1 eingreift.The sleeve 16 serving as strain relief is provided at its front end with a conical surface 16a and lies with its outer surface against an outer support ring 20 which is integrally connected to the plug body 1 and at its rear end a counter-conical surface 20a to the conical surface 16a of the sleeve 16 having. Furthermore, the sleeve 16 is designed to be radially deformable, which can be done either by providing it with one or more longitudinal slots or by manufacturing it from a correspondingly deformable material. The rear end of the sleeve 16 abuts a shoulder 21 of the union nut 9. The union nut 9 is provided with an internal thread 22 which engages in an external thread 23 of the plug body 1.

Für die Montage wird zunächst das Koaxialkabel 11 senkrecht zu seiner Längsachse glatt abgeschnitten. Dann wird die Überwurfmutter 9 so auf das Ende des Koaxialkabels aufgeschoben, daß deren Gewinde nach vorn zeigt. Anschließend wird die Hülse 16 über das glatt abgeschnittene Ende des Koaxialkabels 11 geschoben und zusammen mit dem Koaxialkabel 11 soweit in Richtung auf die Dorn/Messerkontaktanordnung 18, 19 vorgeschoben, daß die Konusfläche 16a der Hülse 16 an der Gegenkonusfläche 20a des Stützringes 20 anliegt. Anschließend wird die Überwurfmutter 9 auf den Steckerkörper 1 aufgeschraubt. Beim Aufschrauben der Überwurfmutter auf den Steckerkörper 1 wird die Hülse 16 von der Schulter 21 der Überwurfmutter 9 mit großer Kraft über die Dorn/Messerkontaktanordnung 18, 19 geschoben. Dabei dringt zunächst der Dorn 18 mit seiner Spitze in die Innenleiterlitze 12 des Koaxialkabels 11 ein und stellt dort einen elektrischen Klemmkontakt her. In gleicher Weise dringt der Messerkontakt 19 mit seinem zugeschärften Ende im Bereich des Außenleiters 13 in das Ende des Koaxialkabels 11 ein und stellt einen elektrischen Klemmkontakt mit dem Außenleiter 13 her. Gleichzeitig wird durch die axiale Verschiebung und die Konusflächen 16a und 20a die Hülse 16 radial komprimiert, so daß das in der Hülse 16 befindliche Ende des Koaxialkabels 1 einer starken Druckspannung ausgesetzt wird. Diese Druckspannung erhöht die Intensität der elektrischen Klemmkontakte und schließt die Kontaktstellen hermetisch gegen Einflüsse von außen ab.For assembly, the coaxial cable 11 is first cut smoothly perpendicular to its longitudinal axis. Then the union nut 9 is pushed onto the end of the coaxial cable so that its thread faces forward. Subsequently, the sleeve 16 is pushed over the smoothly cut end of the coaxial cable 11 and advanced together with the coaxial cable 11 so far in the direction of the mandrel / knife contact arrangement 18, 19 that the cone surface 16a of the sleeve 16 abuts the counter-cone surface 20a of the support ring 20. The union nut 9 is then screwed onto the plug body 1. When the union nut is screwed onto the plug body 1, the sleeve 16 is pushed with great force over the mandrel / knife contact arrangement 18, 19 by the shoulder 21 of the union nut 9. First, the tip of the mandrel 18 penetrates into the inner conductor strand 12 of the coaxial cable 11 and produces an electrical clamping contact there. In the same way, the knife contact 19 penetrates with its sharpened end in the area of the outer conductor 13 into the end of the coaxial cable 11 and establishes an electrical clamping contact with the outer conductor 13. At the same time, the sleeve 16 is radially compressed by the axial displacement and the conical surfaces 16a and 20a, so that the end of the coaxial cable 1 located in the sleeve 16 is subjected to a strong compressive stress. This compressive stress increases the intensity of the electrical terminal contacts and hermetically seals the contact points against external influences.

Falls ein Koaxialkabel 11 mit dem äußeren zusätzlichen Außenleiter 13a verwendet wird und der äußere Außenleiter 13a kontaktiert werden soll, ist in der Überwurfmutter 9 im Durchtrittsbereich des Koaxialkabels 11 eine quer zum Koaxialkabel 11 verlaufende Gewindebohrung 24 vorgesehen, in welche eine Dornschraube 25 einschraubbar ist. Diese Dornschraube 25 durchdringt mit ihrem Dorn die Außenisolierung 15 des Koaxialkabels 11 und stellt somit im Bedarfsfall einen elektrischen Kontakt zwischen der Überwurfmutter 9 und dem zusätzlichen Außenleiter 13a her. Die Überwurfmutter 9 steht selbstverständlich über das Gewinde 23 elektrisch leitend mit dem Steckerkörper 1 in Verbindung.If a coaxial cable 11 is used with the outer additional outer conductor 13a and the outer outer conductor 13a is to be contacted, there is one in the union nut 9 in the passage area of the coaxial cable 11 Provided transverse to the coaxial cable 11 threaded bore 24 into which a mandrel screw 25 can be screwed. This mandrel screw 25 penetrates with its mandrel the outer insulation 15 of the coaxial cable 11 and thus makes an electrical contact between the union nut 9 and the additional outer conductor 13a if necessary. The union nut 9 is of course electrically connected to the connector body 1 via the thread 23.

Das Ausführungsbeispiel gemäß Figur 2 zeigt einen Bananenstecker, der steckerseitig herkömmlich aufgebaut ist. Dieser Bananenstecker ist am Außenumfang mit einer isolierenden Griffhülse 30 versehen, die einen innen liegenden metallischen Steckerkörper 31 umgibt. Der Steckerkörper 31 enthält ein metallisches Kontaktstück 32, welches an seiner Vorderseite mit den metallischen Steckerstift 33 des Bananensteckers verbunden ist. Dieser Steckerstift 33 ist hohl und längsgeteilt ausgebildet und kann mittels eines Spreizmechanismus aufgespreizt werden. Dieser Spreizmechanismus besteht aus einem im Inneren des Steckerstiftes angeordneten Zugbolzen 34, der an seinem äußeren Ende mit einem konischen Spreizkopf 35 und an seinem steckerseitigen Ende Querbolzen 36 aufweist, die an Schraubenflächen 37 eines drehbaren Hülsenkopfes 38 anliegen, der verdrehbar am vorderen Ende der Griffhülse 30 gelagert ist und wie diese aus Isolierstoff besteht. Die Schraubenflächen 37 des Hülsenkopfes 38 verlaufen derart gegen die axiale Richtung geneigt, daß bei Verdrehung des Hülsenkopfes 38 eine Zugkraft auf den Zugbolzen 34 ausgeübt wird, durch welche der Steckerstift 33 aufgespreizt wird und in seiner Einstecköffnung fixiert wird.The exemplary embodiment according to FIG. 2 shows a banana plug which is constructed conventionally on the plug side. This banana plug is provided on the outer circumference with an insulating grip sleeve 30 which surrounds an inner metallic plug body 31. The plug body 31 contains a metallic contact piece 32, which is connected at its front to the metallic plug pin 33 of the banana plug. This plug pin 33 is hollow and longitudinally formed and can be spread out by means of a spreading mechanism. This expansion mechanism consists of a tension bolt 34 arranged in the interior of the plug pin, which has at its outer end with a conical expansion head 35 and at its plug end cross bolts 36, which bear on screw surfaces 37 of a rotatable sleeve head 38, which is rotatable at the front end of the grip sleeve 30 is stored and how it consists of insulating material. The screw surfaces 37 of the sleeve head 38 are inclined towards the axial direction in such a way that when the sleeve head 38 is rotated, a tensile force is exerted on the tension bolt 34, by means of which the plug pin 33 is spread apart and fixed in its insertion opening.

Kabelanschlußseitig ist der Bananenstecker gemäß Figur 2 weitestgehend ähnlich aufgebaut, wie der in Figur 1 dargestellte Cinch-Stecker. Für die einander entsprechenden Teile werden deshalb im folgenden die gleichen Bezugszeichen verwendet.On the cable connection side, the banana plug according to FIG. 2 is constructed largely similar to the cinch plug shown in FIG. 1. The same reference numerals are therefore used below for the corresponding parts.

Auch bei dem Bananenstecker ist eine Überwurfmutter 9 vorgesehen, die mittels eines Gewindes 22, 23 auf den Steckerkörper 31 aufschraubbar ist und am Außenumfang ein Außengewinde 8 aufweist, auf welches die Griffhülse 30 aufschraubbar ist.Also in the banana plug, a union nut 9 is provided, which can be screwed onto the plug body 31 by means of a thread 22, 23 and has an external thread 8 on the outer circumference, onto which the grip sleeve 30 can be screwed.

Kabelanschlußseitig ist die Überwurfmutter 9 auch hier mit einer Öffnung 10 für den Durchtritt eines Kabels 39 versehen, welches hier lediglich eine innen liegende, aus feinen Drähten bestehende Leiterlitze 40 aufweist. Diese Leiterlitze 40 des Kabels 39 ist von einer aus Kunststoff bestehenden Außenisolierung 41 umgeben.On the cable connection side, the union nut 9 is also provided here with an opening 10 for the passage of a cable 39, which here only has an internal conductor strand 40 consisting of fine wires. This conductor strand 40 of the cable 39 is surrounded by an outer insulation 41 made of plastic.

Das anschlußseitige Ende des Kabels 39 ist senkrecht zur Längsachse des Kabels abgeschnitten und wird von einer an der Außenisolierung 41 anliegenden Hülse 16 umgeben, die an ihrer Innenseite mit einer die Reibung erhöhenden Profilierung 17 versehen ist und als Zugentlastung dient. Das in dem Steckerkörper 31 angeordnete Kontaktstück 32 ist kabelanschlußseitig mittig mit einem Dorn 18 versehen, dessen Längsachse mit der Längsachse des Kabels 39 zusammenfällt und dessen Spitze in Richtung auf das anzuschließende Kabel 39 weist.The connection-side end of the cable 39 is cut off perpendicular to the longitudinal axis of the cable and is surrounded by a sleeve 16 lying against the outer insulation 41, which is provided on its inside with a friction-increasing profile 17 and serves as strain relief. The contact piece 32 arranged in the plug body 31 is provided in the center on the cable connection side with a mandrel 18, the longitudinal axis of which coincides with the longitudinal axis of the cable 39 and the tip of which points in the direction of the cable 39 to be connected.

Die als Zugentlastung dienende Hülse 16 ist auch hier an ihrem vorderen Ende mit einer Konusfläche 16a versehen und liegt mit ihrer Außenfläche an einem äußeren Stützring 20 an, der einstückig mit dem Steckerkörper 31 verbunden ist und an seinem rückwärtigen Ende eine Gegenkonusfläche 20a zur Konusfläche 16a der Hülse 16 aufweist. Weiterhin ist die Hülse 16 auch hier radial verformbar ausgebildet, was entweder dadurch geschehen kann, daß sie mit einem oder mehreren Längsschlitzen versehen ist oder daß sie aus einem entsprechend verformbaren Material gefertigt ist. Die Hülse 16 liegt mit ihrem rückwärtigen Ende an einer Schulter 21 der Überwurfmutter 9 an.The sleeve 16 serving as a strain relief is also provided at its front end with a conical surface 16a and lies with its outer surface against an outer support ring 20 which is integral with the plug body 31 is connected and has at its rear end a conical surface 20a to the conical surface 16a of the sleeve 16. Furthermore, the sleeve 16 is also radially deformable, which can either be done by providing one or more longitudinal slots or by being made from a correspondingly deformable material. The rear end of the sleeve 16 abuts a shoulder 21 of the union nut 9.

Für die Montage des Kabels 39 wird dieses zunächst senkrecht zu seiner Längsachse glatt abgeschnitten. Dann wird die Überwurfmutter 9 so auf das Ende des Kabels 39 geschoben, daß deren Gewinde nach vorn zeigt. Anschließend wird die Hülse 16 über das glatt abgeschnittene Ende des Kabels 39 geschoben und zusammen mit dem Kabel 39 soweit in Richtung auf den Dorn 18 vorgeschoben, daß die Konusfläche 16a der Hülse 16 an der Gegenkonusfläche 20a des Stützringes 20 anliegt. Anschließend wird die Überwurfmutter 9 auf den Steckerkörper 31 aufgeschraubt. Hierdurch wird die Hülse 16 zusammen mit dem innen liegenden Kabel 39 mit großer Kraft axial auf den Dorn 18 geschoben und zugleich radial nach innen verformt, so daß sich zwischen dem Dorn 18 und der Leiterlitze 40 des Kabels 39 eine sehr starke Druckspannung aufbaut, die einen intensiven elektrischen Klemmkontakt herstellt und die Kontaktstelle weitestgehend gegen Einflüsse von außen abschirmt.For the assembly of the cable 39, this is first cut smoothly perpendicular to its longitudinal axis. Then the union nut 9 is pushed onto the end of the cable 39 so that its thread faces forward. Subsequently, the sleeve 16 is pushed over the smoothly cut end of the cable 39 and advanced together with the cable 39 so far in the direction of the mandrel 18 that the conical surface 16a of the sleeve 16 abuts the counter-conical surface 20a of the support ring 20. The union nut 9 is then screwed onto the plug body 31. As a result, the sleeve 16 is pushed together with the inner cable 39 with great force axially onto the mandrel 18 and at the same time deformed radially inward, so that a very strong compressive stress builds up between the mandrel 18 and the conductor strand 40 of the cable 39, which one establishes intensive electrical clamping contact and largely shields the contact point against external influences.

Claims (7)

  1. Apparatus for connecting a cable end (11) which has been cut off perpendicularly to its longitudinal axis to a plug body (6), a socket body or an item of electrical equipment, comprising at least one terminal contact (18, 19) which is pointed at its front and which penetrates from the end into the stranded conductor wire (12) of the cable end (11), and a pull force-relief means comprising a sleeve (16) which can be pushed over the cable end (11) and which is axially displaceable by means of the screwthread (7, 8) of a cap nut (9) and which in such displacement is supported with its outside surface against an outer support ring (20), wherein the support of the sleeve (16) on the support ring (20) is such that upon axial displacement thereof the sleeve (16) is radially compressed against the outside insulation (15) of the cable end (11), characterised in that the sleeve (16) together with the cable end (11) disposed therein can be axially pushed over the electrical terminal contact (18, 19) by means of the screwthread (22, 23) of the cap nut (9) and in so doing radially compresses the cable end (11) in the region of the axially penetrating electrical terminal contact (18, 19).
  2. Apparatus according to claim 1 characterised in that the sleeve (16) is provided with one or more longitudinal slots and/or comprises deformable material.
  3. Apparatus according to claim 1 characterised in that the sleeve (16) which serves as the pull force-relief means is provided at its inside with a profiling (17) which increases the friction between the sleeve (16) and the outside insulation (15, 41) of the cable (11, 39).
  4. Apparatus according to claim 1 characterised in that the terminal contact which is pointed at the front is in the form of a peg (18) which at its outside has a sawtooth profiling.
  5. Apparatus according to one of claims 1 to 4 for use on a coaxial cable characterised in that the terminal contact for the central conductor wire (12) is in the form of a peg (18) and the terminal contact for the outer conductor (13) is in the form of a blade contact (19) which is sharpened at the front and which concentrically surrounds the peg and whose diameter corresponds to the diameter of the outer conductor (13).
  6. Apparatus according to claim 5 characterised in that the peg (18) projects with its pointed end beyond the sharpened end of the blade contact (19).
  7. Apparatus according to claim 5 or claim 6 for use on a coaxial cable which has an additional outside outer conductor, characterised in that provided in the cap nut (9) is a screwthreaded bore (24) which extends transversely with respect to the coaxial cable and into which can be screwed a peg screw (25) for contacting the outside outer conductor (13a) of the coaxial cable (11).
EP91122139A 1991-01-11 1991-12-23 Cable end fitting device Expired - Lifetime EP0494438B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4100600A DE4100600A1 (en) 1991-01-11 1991-01-11 Coaxial cable termination pin - has concentric contacts for inner and outer conductors and outer sleeve providing tension restraint
DE4100600 1991-01-11
DE4140227 1991-12-06
DE4140227A DE4140227A1 (en) 1991-01-11 1991-12-06 DEVICE FOR CONNECTING A CABLE END

Publications (3)

Publication Number Publication Date
EP0494438A2 EP0494438A2 (en) 1992-07-15
EP0494438A3 EP0494438A3 (en) 1993-02-03
EP0494438B1 true EP0494438B1 (en) 1996-03-06

Family

ID=25900175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91122139A Expired - Lifetime EP0494438B1 (en) 1991-01-11 1991-12-23 Cable end fitting device

Country Status (8)

Country Link
US (1) US5318458A (en)
EP (1) EP0494438B1 (en)
JP (1) JP2503339B2 (en)
KR (1) KR950012465B1 (en)
AT (1) ATE135143T1 (en)
DE (3) DE9116154U1 (en)
DK (1) DK0494438T3 (en)
ES (1) ES2086472T3 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2126223C (en) * 1992-02-14 1998-01-06 Ian James Stafford Gray Electrical connectors
US5501616A (en) * 1994-03-21 1996-03-26 Holliday; Randall A. End connector for coaxial cable
EP0705489B1 (en) * 1994-03-31 2000-05-17 Prüftechnik Dieter Busch Ag Device for connecting a coaxial cable to contacts which can be connected to extension lead arrangements
DE4418259C1 (en) * 1994-05-25 1995-08-24 Hirschmann Richard Gmbh Co Multipole electrical connector for stranded cables
US5683265A (en) * 1995-10-06 1997-11-04 Lucent Technologies Inc. Barrel plug having insulation displacement terminals
US5775934A (en) * 1996-05-15 1998-07-07 Centerpin Technology, Inc. Coaxial cable connector
AU742223B2 (en) * 1996-05-15 2001-12-20 Centerpin Technology, Inc. Coaxial cable connector
US6123567A (en) * 1996-05-15 2000-09-26 Centerpin Technology, Inc. Coaxial cable connector
JP3176862B2 (en) * 1996-06-21 2001-06-18 三菱電線工業株式会社 Coaxial cable connector
US5851124A (en) * 1996-09-11 1998-12-22 Young; Bruce Lynn Locking wire connector
EP0875081B1 (en) * 1996-10-23 2005-12-28 Thomas &amp; Betts International, Inc. Coaxial cable connector
AU2959297A (en) * 1997-05-21 1998-12-11 See Sprl Method for connecting coaxial cables and connector therefor
US5879191A (en) * 1997-12-01 1999-03-09 Gilbert Engineering Co, Inc. Zip-grip coaxial cable F-connector
US5888091A (en) * 1997-12-03 1999-03-30 The Whitaker Corporation Termination of an insulated electrical conductor
US6422759B1 (en) 1998-05-29 2002-07-23 Tyco Electronics Corporation Fiber optic connector
US6244893B1 (en) 1998-10-30 2001-06-12 Charles Dudley Stranded wire electrical connector
US6705884B1 (en) 1999-08-16 2004-03-16 Centerpin Technology, Inc. Electrical connector apparatus and method
US6796829B1 (en) * 2000-03-03 2004-09-28 Centerpin Technology, Inc. Electrical connector apparatus and method
US6648683B2 (en) * 2001-05-03 2003-11-18 Timothy L. Youtsey Quick connector for a coaxial cable
US6561846B2 (en) 2001-07-10 2003-05-13 J. D'addario & Co., Inc. Coupler for banana plug connectors and coupled banana plug connectors
WO2003009424A1 (en) 2001-07-17 2003-01-30 Centerpin Technology, Inc. Electrical connector
US7121872B1 (en) 2005-05-31 2006-10-17 Centerpin Technology Inc. Electrical connector with interference collar
US7077683B1 (en) * 2005-06-15 2006-07-18 Nicky Charles Ross Ratcheting electrical plug and receptacle
US7500868B2 (en) * 2006-05-02 2009-03-10 Michael Holland Compression connector for stranded wire
CN100384026C (en) * 2006-05-25 2008-04-23 宁波市吉品信息互连工业有限公司 Cable plug connector
US7837494B2 (en) * 2007-02-26 2010-11-23 Continental Automotive Systems Us, Inc. Connection of wire to a lead frame
US7476119B2 (en) * 2007-04-23 2009-01-13 D'addario & Company, Inc. Plug connector
US8016615B2 (en) * 2009-09-09 2011-09-13 John Mezzalingua Associates, Inc. Phone plug connector device
US7997929B2 (en) 2009-08-13 2011-08-16 John Mezzalingua Associates, Inc. Phone plug connector device
US8303339B2 (en) 2009-09-09 2012-11-06 John Mezzalingua Associates, Inc. Audio jack connector device
US8419469B2 (en) * 2009-08-13 2013-04-16 Ppc Broadband, Inc. Audio jack connector device and method of use thereof
US8246392B2 (en) * 2009-09-09 2012-08-21 John Mezzalingua Associates, Inc. Securable connector
CN201708260U (en) * 2010-04-07 2011-01-12 富士康(昆山)电脑接插件有限公司 Cable connector component
CN201708261U (en) * 2010-04-07 2011-01-12 富士康(昆山)电脑接插件有限公司 Cable connector assembly
CN201773964U (en) * 2010-05-12 2011-03-23 富士康(昆山)电脑接插件有限公司 Cable connector assembly
WO2011146911A1 (en) 2010-05-21 2011-11-24 Pct International, Inc. Connector with locking mechanism and associated systems and methods
US8439707B2 (en) 2010-06-09 2013-05-14 Ppc Broadband, Inc. Compression connector for multi-conductor cable
US8465321B2 (en) 2010-06-09 2013-06-18 Ppc Broadband, Inc. Protruding contact receiver for multi-conductor compression cable connector
US8579658B2 (en) 2010-08-20 2013-11-12 Timothy L. Youtsey Coaxial cable connectors with washers for preventing separation of mated connectors
US8702444B2 (en) 2010-10-18 2014-04-22 Panduit Corp. Communication plug with improved cable manager
US8449311B2 (en) 2010-10-19 2013-05-28 Ppc Broadband, Inc. Locking audio plug
US8348692B2 (en) 2010-11-30 2013-01-08 John Mezzalingua Associates, Inc. Securable multi-conductor cable connection pair having threaded insert
DE202010016711U1 (en) * 2010-12-17 2012-03-19 Weidmüller Interface GmbH & Co. KG Connecting device with Ferring for contact force generation
US20120295464A1 (en) 2011-05-19 2012-11-22 Pct International, Inc. Coaxial connector
US8911254B2 (en) 2011-06-03 2014-12-16 Ppc Broadband, Inc. Multi-conductor cable connector having more than one coaxial cable and method thereof
KR101290687B1 (en) * 2011-11-10 2013-07-29 화신산업 주식회사 Cable connector
US9028276B2 (en) 2011-12-06 2015-05-12 Pct International, Inc. Coaxial cable continuity device
DE102012019233A1 (en) 2012-09-29 2014-04-03 Volkswagen Aktiengesellschaft Electrically conductive contacting system for motor car, has individual wires providing radial pressing force against pin such that radial pressing force is generated by rotation or pulling of individual wires relative to pin
JP6233574B2 (en) * 2013-11-20 2017-11-22 第一精工株式会社 Coaxial electrical connector
US9761993B2 (en) * 2015-01-08 2017-09-12 Westek Electronics, Inc. Banana plug
US10439302B2 (en) 2017-06-08 2019-10-08 Pct International, Inc. Connecting device for connecting and grounding coaxial cable connectors
JP6587242B1 (en) * 2018-10-19 2019-10-09 日幸カールコード株式会社 Connection devices, plugs and sockets
CN111711037B (en) * 2020-06-28 2021-07-02 广东汇杰电力集团有限公司 Quick butt-joint device of cable

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE119029C (en) *
CH239880A (en) * 1943-10-02 1945-11-15 Bbc Brown Boveri & Cie Detachable and solderless cable lug attached to one end of the conductor.
GB612213A (en) * 1946-05-18 1948-11-10 Lucas Ltd Joseph Improvements relating to electric cable couplings
FR1285750A (en) * 1961-04-06 1962-02-23 L & K Mfg Co Improvements to electrical connectors
FR1312525A (en) * 1961-11-07 1962-12-21 Coaxial cable socket
US3184706A (en) * 1962-09-27 1965-05-18 Itt Coaxial cable connector with internal crimping structure
US3292136A (en) * 1964-10-01 1966-12-13 Gremar Mfg Co Inc Coaxial connector
US3354420A (en) * 1966-09-02 1967-11-21 Ashal J Calder Coaxial cable connector
US3526871A (en) * 1968-02-09 1970-09-01 Gremar Connectors Canada Ltd Electrical connector
GB1282715A (en) * 1968-08-09 1972-07-26 Communications Patents Ltd Improved electric wave communication cable and connector
GB1527900A (en) * 1974-12-12 1978-10-11 Bunker Ramo Hermaphroditic electrical connector assembly
JPS54162194A (en) * 1978-06-13 1979-12-22 Hitoshi Komada Method of connecting coaxial cord and wiring method
US4339166A (en) * 1980-06-19 1982-07-13 Dayton John P Connector
JPS60104043A (en) * 1983-11-07 1985-06-08 テキサコ・デベロツプメント・コーポレーシヨン Manufacture of nitriles and primary amines from primary alcohols
JPH0763026B2 (en) * 1985-10-28 1995-07-05 株式会社木村電気工業 High frequency coaxial cable connector-plug
US4761146A (en) * 1987-04-22 1988-08-02 Spm Instrument Inc. Coaxial cable connector assembly and method for making

Also Published As

Publication number Publication date
EP0494438A2 (en) 1992-07-15
EP0494438A3 (en) 1993-02-03
DE9116154U1 (en) 1992-03-19
DE59107516D1 (en) 1996-04-11
JPH04319268A (en) 1992-11-10
DK0494438T3 (en) 1996-07-08
ATE135143T1 (en) 1996-03-15
KR950012465B1 (en) 1995-10-18
DE4140227A1 (en) 1992-07-23
US5318458A (en) 1994-06-07
KR920015660A (en) 1992-08-27
ES2086472T3 (en) 1996-07-01
JP2503339B2 (en) 1996-06-05

Similar Documents

Publication Publication Date Title
EP0494438B1 (en) Cable end fitting device
DE2425070C3 (en) Electrical connector for coaxial cables
EP1560294B1 (en) Connector for coaxial cable with a corrugated outer conductor
EP1028498B1 (en) Connector for a coaxial cable with a smooth outer conductor
DE1515398B1 (en) Clamping device on coaxial connectors for fastening a coaxial cable
DE3708242A1 (en) CONNECTOR FOR A COAXIAL PIPE WITH A CORRUGATED OUTER CORD OR A CORRUGATED PIPE SEMICONDUCTOR
DE2343030B2 (en) Connection device for coaxial cables
EP2652840A1 (en) Cable gland
DE102010012525A1 (en) Coaxial connector with terminal connection of the inner conductor
DE2647043C2 (en) Strain relief device for a cable entry into a housing of an electrical device
EP1870961A1 (en) Cable connection
EP0460145B1 (en) Clamping device for making an electrical connection
EP0655805A1 (en) Cable plug
DE102017126185B4 (en) Electrical contact element
EP0017953B1 (en) Fitting for the end of a middle voltage or high voltage cable
DE3935360C2 (en)
DE3834172C2 (en)
DE3528587A1 (en) Electrical contact device
DE2410625A1 (en) HV cable entry gland for sealed equipment - has hollow insulated cylinder with coil spring exerting force against bush on cable plug
DE102020133781A1 (en) Strain relief for a connector arranged on a shielded cable
DE4210491A1 (en) Device for producing a detachable connection between a signal line and a connection socket on a component of a medium-voltage or high-voltage power supply system
DE2601429C3 (en) Coaxial cable connector
DE4100600A1 (en) Coaxial cable termination pin - has concentric contacts for inner and outer conductors and outer sleeve providing tension restraint
DE8433788U1 (en) Electrical connector
DE19964299B4 (en) Plug connector for radiating coaxial cable, has radially sprung segments of contact sleeve that are wider in peripheral direction than free width of cable&#39;s outer conductor openings

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19930225

17Q First examination report despatched

Effective date: 19940713

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 135143

Country of ref document: AT

Date of ref document: 19960315

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

REF Corresponds to:

Ref document number: 59107516

Country of ref document: DE

Date of ref document: 19960411

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960329

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWALTSBUREAU BOSSHARD UND LUCHS

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2086472

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20021230

Year of fee payment: 12

Ref country code: ES

Payment date: 20021230

Year of fee payment: 12

Ref country code: DK

Payment date: 20021230

Year of fee payment: 12

Ref country code: AT

Payment date: 20021230

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20030107

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20030527

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031223

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031224

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20031224

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20031229

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20031231

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040102

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040102

Year of fee payment: 13

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031224

BERE Be: lapsed

Owner name: *THORNER WOLFGANG B.

Effective date: 20041231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20041223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050831

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051223

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070702

Year of fee payment: 16

BERE Be: lapsed

Owner name: *THORNER WOLFGANG B.

Effective date: 20041231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080701