EP0306754B1 - Device for the mounting of a branching of a single core of a multiconductor cable - Google Patents

Device for the mounting of a branching of a single core of a multiconductor cable Download PDF

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Publication number
EP0306754B1
EP0306754B1 EP88113552A EP88113552A EP0306754B1 EP 0306754 B1 EP0306754 B1 EP 0306754B1 EP 88113552 A EP88113552 A EP 88113552A EP 88113552 A EP88113552 A EP 88113552A EP 0306754 B1 EP0306754 B1 EP 0306754B1
Authority
EP
European Patent Office
Prior art keywords
clamping
clamping element
cupped
gripping points
recess
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
EP88113552A
Other languages
German (de)
French (fr)
Other versions
EP0306754A3 (en
EP0306754A2 (en
Inventor
Adolf Roth
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Fischer AG filed Critical Georg Fischer AG
Priority to AT88113552T priority Critical patent/ATE83338T1/en
Publication of EP0306754A2 publication Critical patent/EP0306754A2/en
Publication of EP0306754A3 publication Critical patent/EP0306754A3/en
Application granted granted Critical
Publication of EP0306754B1 publication Critical patent/EP0306754B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw

Definitions

  • the present invention relates to a device for producing a branch from a single insulated wire of a multi-conductor cable, a first and a second clamping element being able to be brought into clamping contact with one another by means of a screw arrangement.
  • branch terminal which consists of detachably connectable segments, spacers being provided between the individual segments.
  • a device for producing a branch from a single insulated wire of a multi-conductor cable according to the preamble of claim 1 is known from document DE-A-2 903 960.
  • the present invention has for its object to provide a device for branching a single insulated wire of a multi-conductor cable, which can be assembled in a very simple manner with a minimum number of individual parts without much time.
  • the features according to the invention result in a simple clamping contact of the main wire by means of a screw with simple assembly.
  • the distance between the tilting support and the recesses for the main wire ensures high clamping forces.
  • a device shown in FIGS. 1 and 2 for branching a single insulated wire of a multi-conductor cable has a first 1 and a second 2 clamping element. These two clamping elements can be pressed against one another by means of a screw arrangement 3, so that a clamping contact arises between the individual elements 1 and 2.
  • the first clamping element 1 has a projection 5 through which a bore 4 runs. This hole is intended to accommodate a branch conductor.
  • a recess 7 is provided in the first clamping element 1. This recess is designed to span the main vein.
  • the second clamping element 2 each has a recess 15 and 9, the part-circular recess 15 forming the support part 8 for the clamping element 1.
  • the radius of the recess 15 corresponds approximately to the radius of the projection 5, so that when the clamping contact is produced, the projection 5 is spanned by the recess 15 along a wide area of its circumference.
  • the projection 5 can be rotated about the drilling axis 6 in the recess 15, the recess 15 forming a tilting support 16. In the case of a clamp contact to be produced, this arrangement also guarantees the necessary anti-rotation protection.
  • the clamping elements are provided with an insulating surface coating.
  • the recessed clamping screws 3a make the proposed clamp very space-saving.
  • the assembly is also correspondingly simple:
  • a prepared branch conductor is guided through the bore 4 and clamped by means of a screw 13.
  • the clamping element with its recesses 7 and 9 is then pushed onto the main wire.
  • the screw 3a is tightened so that the clamping elements 1 and 2 are brought into clamping contact.
  • the annular cutting edges 11 penetrate into the insulating material of the main wire and displace it into the cavities 12. As soon as the annular cutting edges 11 have penetrated the insulating material, the clamping contact is produced.
  • the projection 5 of the clamping element 1 is nose-shaped.
  • the support part 8 of the clamping element 2 has a flat support surface 10, whereby the rounded nose creates a linear support of the clamping element 1 on the clamping part 2, about which the clamping element 2 can be pivoted about the tilting support 16 when tightened by means of the screw arrangement 3.
  • the clamping element 1 has an eye 14 for the screw 13 for clamping the branch conductor in the bore 4.
  • a contact surface 10 is arranged on each side of the eye 14.
  • the arrangement of the projections 5 on both sides of the eye 14 prevents the two clamping elements 1, 2 from rotating relative to one another when the screw 3a is tightened.
  • the recesses 9 and 7 with the annular cutting edges 11 correspond to the embodiment variant shown in FIGS. 1 and 2, wherein the cavities 12 between the annular cutting edges 11 can also be semicircular in cross section in order to reduce notch stresses, as shown in FIG. 2a.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Multi-Conductor Connections (AREA)
  • Cable Accessories (AREA)
  • Communication Cables (AREA)

Abstract

A device for producing a junction of a single insulated core of a multiconductor cable is proposed which is characterised by a first (1) and a second (2) clamping element. With the aid of a screw arrangement (3), the clamping elements (1, 2) can be clamped against one another, the annular cutters (11) penetrating the insulating material of the core to be joined and hence producing the clamping contact. The proposed device is compact and simple to handle and is thus easy to fit. <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Einrichtung zur Herstellung einer Abzweigung von einer einzelnen isolierten Ader eines Mehrleiterkabels, wobei je ein erstes und ein zweites Klemmelement mittels einer Schraubenanordnung gegeneinander in Klemmkontakt bringbar sind.The present invention relates to a device for producing a branch from a single insulated wire of a multi-conductor cable, a first and a second clamping element being able to be brought into clamping contact with one another by means of a screw arrangement.

Es sind verschiedene Arten von Einrichtungen zur Abzweigung einer Ader eines Mehrleiterkabels bekannt, wobei die meisten Ausführungen in der Art eines Klemmringes Verwendung finden.Various types of devices for branching a wire of a multi-conductor cable are known, most of the designs being used in the manner of a clamping ring.

Aus der DE-OS 2143219 ist eine Abzweigklemme bekannt, welche aus lösbar miteinander verbindbaren Segmenten besteht, wobei zwischen den einzelnen Segmenten Distanzstücke vorgesehen sind.From DE-OS 2143219 a branch terminal is known, which consists of detachably connectable segments, spacers being provided between the individual segments.

Eine solche bekannte Ausführung bedingt eine Vielzahl von Einzelteilen wie Segmente, Abstandhalter etc., was die Montage erschwert und auch Ursache von Fehlerquellen sein kann.Such a known design requires a large number of individual parts such as segments, spacers, etc., which complicates the assembly and can also be the cause of sources of error.

Eine Einrichtung zur Herstellung einer Abzweigung von einer einzelnen isolierten Ader eines Mehrleiterkabels gemäß dem Oberbegriff des Anspruchs 1 ist vom Dokument DE-A-2 903 960 bekannt.A device for producing a branch from a single insulated wire of a multi-conductor cable according to the preamble of claim 1 is known from document DE-A-2 903 960.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, eine Einrichtung zur Abzweigung einer einzelnen isolierten Ader eines Mehrleiterkabels zu schaffen, die in einfachster Weise mit einer Mindestzahl von Einzelteilen ohne grossen Zeitaufwand montierbar ist.The present invention has for its object to provide a device for branching a single insulated wire of a multi-conductor cable, which can be assembled in a very simple manner with a minimum number of individual parts without much time.

Diese Aufgabe wird durch die kennzeichnenden Merkmale von Anspruch 1 gelöst.This object is achieved by the characterizing features of claim 1.

Durch die erfindungsgemässen Merkmale wird ein einfacher Klemmkontakt der Hauptader mittels einer Schraube bei einfacher Montage erreicht. Der Abstand zwischen der Kippauflage und den Ausnehmungen für die Hauptader gewährleistet hohe Klemmkräfte.The features according to the invention result in a simple clamping contact of the main wire by means of a screw with simple assembly. The distance between the tilting support and the recesses for the main wire ensures high clamping forces.

Besonders vorteilhafte Ausgestaltungen gehen aus den abhängigen Ansprüchen hervor.Particularly advantageous configurations emerge from the dependent claims.

Anhand der beiliegenden Figuren werden Ausführungsbeispiele der Einrichtung näher beschrieben.Exemplary embodiments of the device are described in more detail with the aid of the attached figures.

Es zeigen:

Fig. 1
einen Schnitt durch eine Einrichtung zur Herstellung einer Abzweigung von einer einzelnen isolierten Ader eines Mehrleiterkabels
Fig. 2
einen Schnitt entlang der Linie B-B aus der Fig. 1 in vergrösserter Darstellung
Fig. 2a
eine Ausführungsvariante von der in Fig. 2 gezeigten Schnittpartie
Fig. 3
eine Ausführungsvariante von der in Fig. 1 gezeigten Einrichtung gemäß der Erfindung.
Show it:
Fig. 1
a section through a device for producing a branch from a single insulated wire of a multi-conductor cable
Fig. 2
a section along the line BB of FIG. 1 in an enlarged view
Fig. 2a
an embodiment of the section shown in Fig. 2
Fig. 3
an embodiment of the device shown in Fig. 1 according to the invention.

Eine in den Fig. 1 und 2 gezeigte Einrichtung zur Abzweigung einer einzelnen isolierten Ader eines Mehrleiterkabels weist ein erstes 1 und ein zweites 2 Klemmelement auf. Diese zwei Klemmelemente sind mittels einer Schraubenanordnung 3 gegeneinander drückbar, so dass zwischen den einzelnen Elementen 1 und 2 ein Klemmkontakt entsteht. Das erste Klemmelement 1 weist einen Vorsprung 5 auf, durch den eine Bohrung 4 verläuft. Diese Bohrung ist zur Aufnahme eines Abzweigleiters bestimmt. Von der Bohrung 4 beabstandet ist eine Ausnehmung 7 im ersten Klemmelement 1 vorgesehen. Diese Ausnehmung ist dazu bestimmt, die Hauptader zu umspannen.A device shown in FIGS. 1 and 2 for branching a single insulated wire of a multi-conductor cable has a first 1 and a second 2 clamping element. These two clamping elements can be pressed against one another by means of a screw arrangement 3, so that a clamping contact arises between the individual elements 1 and 2. The first clamping element 1 has a projection 5 through which a bore 4 runs. This hole is intended to accommodate a branch conductor. At a distance from the bore 4, a recess 7 is provided in the first clamping element 1. This recess is designed to span the main vein.

Das zweite Klemmelement 2 weist je eine Ausnehmung 15 und 9 auf, wobei die teilkreisförmige Ausnehmung 15 den Auflageteil 8 für das Klemmelement 1 bildet. Der Radius der Ausnehmung 15 entspricht in etwa dem Radius des Vorsprunges 5, so dass bei hergestelltem Klemmkontakt der Vorsprung 5 von der Ausnehmung 15 entlang eines weiten Bereiches seines Umfanges umspannt wird. Der Vosprung 5 ist um die Bohrachse 6 in der Ausnehmung 15 drehbar, wobei die Ausnehmung 15 eine Kippauflage 16 bildet. Diese Anordnung bietet bei herzustellendem Klemmkontakt auch Gewähr für die notwendige Verdrehsicherung.The second clamping element 2 each has a recess 15 and 9, the part-circular recess 15 forming the support part 8 for the clamping element 1. The radius of the recess 15 corresponds approximately to the radius of the projection 5, so that when the clamping contact is produced, the projection 5 is spanned by the recess 15 along a wide area of its circumference. The projection 5 can be rotated about the drilling axis 6 in the recess 15, the recess 15 forming a tilting support 16. In the case of a clamp contact to be produced, this arrangement also guarantees the necessary anti-rotation protection.

Die Ausnehmungen 9 und 7, die dem Umfang der Hauptader angepasst sind, weisen Ringschneiden 11 auf. Diese Ringschneiden sind dazu bestimmt, das Isolationsmaterial zu durchdringen und so nach erfolgter Montage den Stromfluss herzustellen. Zwischen den einzelnen Ringschneiden sind Hohlräume 12 vorgesehen, die das durch die Ringschneiden 11 verdrängte Isolationsmaterial aufnehmen können. Dadurch wird ein einwandfreier Kontakt gewährleistet.The recesses 9 and 7, which are adapted to the circumference of the main core, have ring edges 11. These ring cutters are intended to penetrate the insulation material and thus produce the current flow after installation. Cavities 12 are provided between the individual ring cutting edges and can accommodate the insulation material displaced by the ring cutting edges 11. This ensures perfect contact.

Die Klemmelemente sind wie üblich mit einer isolierenden Oberflächenbeschichtung versehen.As usual, the clamping elements are provided with an insulating surface coating.

Durch die versenkten Klemmschrauben 3a ist die vorgeschlagene Klemme sehr platzsparend. Auch die Montage gestaltet sich entsprechend einfach:The recessed clamping screws 3a make the proposed clamp very space-saving. The assembly is also correspondingly simple:

Zunächst wird durch die Bohrung 4 ein vorbereiteter Abzweigleiter geführt und mittels einer Schraube 13 festgeklemmt. Das Klemmelement mit seinen Ausnehmungen 7 und 9 wird sodann auf die Hauptader geschoben. Die Schraube 3a wird angezogen, so dass die Klemmelemente 1 und 2 in Klemmkontakt gebracht werden. Während der Herstellung dieses Klemmkontaktes durch Anziehen der Schraubenanordnung 3 dringen die Ringschneiden 11 in das Isoliermaterial der Hauptader ein und verdrängen dieses in die Hohlräume 12. Sobald die Ringschneiden 11 das Isoliermaterial durchdrungen haben, ist der Klemmkontakt hergestellt.First, a prepared branch conductor is guided through the bore 4 and clamped by means of a screw 13. The clamping element with its recesses 7 and 9 is then pushed onto the main wire. The screw 3a is tightened so that the clamping elements 1 and 2 are brought into clamping contact. During the production of this clamping contact by tightening the screw arrangement 3, the annular cutting edges 11 penetrate into the insulating material of the main wire and displace it into the cavities 12. As soon as the annular cutting edges 11 have penetrated the insulating material, the clamping contact is produced.

Die Fig. 3 zeigt eine Ausführungsvariante der Einrichtung gemäß der Erfindung. Hierbei ist der Vorsprung 5 des Klemmelementes 1 nasenförmig ausgebildet.3 shows an embodiment variant of the device according to the invention. Here, the projection 5 of the clamping element 1 is nose-shaped.

Das Auflageteil 8 des Klemmelementes 2 weist eine ebene Auflagefläche 10 auf, wobei durch die abgerundete Nase eine linienförmige Auflage des Klemmelementes 1 auf dem Klemmteil 2 entsteht, um welche beim Zusammenspannen mittels der Schraubenanordnung 3 das Klemmelement 2 um die Kippauflage 16 schwenkbar ist.The support part 8 of the clamping element 2 has a flat support surface 10, whereby the rounded nose creates a linear support of the clamping element 1 on the clamping part 2, about which the clamping element 2 can be pivoted about the tilting support 16 when tightened by means of the screw arrangement 3.

Für die Schraube 13 zur Klemmung des Abzweigleiters in der Bohrung 4 weist das Klemmelement 1 ein Auge 14 auf. Beidseits des Auges 14 ist je eine Auflagefläche 10 angeordnet.The clamping element 1 has an eye 14 for the screw 13 for clamping the branch conductor in the bore 4. A contact surface 10 is arranged on each side of the eye 14.

Durch die Anordnung der Vorsprünge 5 beidseits des Auges 14 wird ein gegenseitiges Verdrehen der beiden Klemmelemente 1, 2 beim Anziehen der Schraube 3a verhindert.The arrangement of the projections 5 on both sides of the eye 14 prevents the two clamping elements 1, 2 from rotating relative to one another when the screw 3a is tightened.

Die Ausnehmungen 9 und 7 mit den Ringschneiden 11 entsprechen der in der Fig. 1 und 2 gezeigten Ausführungsvariante, wobei die Hohlräume 12 zwischen den Ringschneiden 11 zur Verringerung von Kerbspannungen im Querschnitt auch halbkreisförmig ausgebildet sein können, wie dies in Fig. 2a dargestellt ist.The recesses 9 and 7 with the annular cutting edges 11 correspond to the embodiment variant shown in FIGS. 1 and 2, wherein the cavities 12 between the annular cutting edges 11 can also be semicircular in cross section in order to reduce notch stresses, as shown in FIG. 2a.

Claims (6)

  1. Device for the production of a branch of a single insulated wire of a multi-conductor cable having a first clamping element (1) which has at least one projection (5) and a recess (7) spaced apart from this which is provided for receiving a main wire, and a second clamping element (2) which has a support portion (8) co-operating with the projection (5) as a rocking support (16), and a second recess (9), the two recesses (7, 9) at least partially surrounding the main wire by production of a clamping contact when the two clamping elements (1, 2) are braced by means of a screw arrangement (3), and in that in the support portion (8) a bore (4) is arranged to receive a branch conductor, characterised in that the support portion (8) has a flat support surface (10) and in that two nose-shaped projections (5) of the first clamping element (1) are arranged to lie on the support surfaces (10) on both sides of an eye (14) for a clamping screw (13) of the second clamping element (2) and form a securement against rotation.
  2. Device according to claim 1, characterised in that the recesses (7, 9) have cupped gripping points (11).
  3. Device according to claim 1, characterised in that the screw arrangement (3) is arranged to be sunk in the clamping element (1).
  4. Device according to claim 2, characterised in that between the cupped gripping points (11) hollow spaces (12) are provided which receive insulation material displaced by the cupped gripping points (11) when the clamping contact is produced.
  5. Device according to claim 4, characterised in that the hollow spaces (12) between the cupped gripping points (11) are of semi-circular shape to reduce notch stresses in the cross-section.
  6. Device according to one of claims 1 to 5, characterised in that the clamping elements (1, 2) have insulated upper surfaces.
EP88113552A 1987-09-07 1988-08-20 Device for the mounting of a branching of a single core of a multiconductor cable Expired - Lifetime EP0306754B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88113552T ATE83338T1 (en) 1987-09-07 1988-08-20 DEVICE FOR CREATING A BREAK FROM A SINGLE WIRE OF A MULTI-CONDUCTOR CABLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3440/87A CH673910A5 (en) 1987-09-07 1987-09-07
CH3440/87 1987-09-07

Publications (3)

Publication Number Publication Date
EP0306754A2 EP0306754A2 (en) 1989-03-15
EP0306754A3 EP0306754A3 (en) 1990-06-13
EP0306754B1 true EP0306754B1 (en) 1992-12-09

Family

ID=4256002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88113552A Expired - Lifetime EP0306754B1 (en) 1987-09-07 1988-08-20 Device for the mounting of a branching of a single core of a multiconductor cable

Country Status (5)

Country Link
EP (1) EP0306754B1 (en)
AT (1) ATE83338T1 (en)
CH (1) CH673910A5 (en)
DE (1) DE3876548D1 (en)
DK (1) DK167787B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102646954A (en) * 2012-05-17 2012-08-22 天津玖辰机械设备制造有限公司 Mechanical branch connector for low-voltage power cables

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117685C2 (en) * 1958-09-08 1962-06-07 Alois Schiffmann Dipl Kfm Two-jaw power clamp
DE1198435B (en) * 1961-04-17 1965-08-12 Alois Schiffmann Dipl Kfm Connection and branch terminal for insulated lines
FR2294556A1 (en) * 1974-12-12 1976-07-09 Verlant Et Beaurain Clamp connector for bared supply lines - double ended clamping bridge with one end acting as pivot
DE2903960C3 (en) * 1979-02-02 1984-01-19 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Fully insulated branch terminal

Also Published As

Publication number Publication date
EP0306754A3 (en) 1990-06-13
DK495088A (en) 1989-03-08
DE3876548D1 (en) 1993-01-21
ATE83338T1 (en) 1992-12-15
EP0306754A2 (en) 1989-03-15
DK167787B1 (en) 1993-12-13
DK495088D0 (en) 1988-09-06
CH673910A5 (en) 1990-04-12

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