EP0321726A2 - Device for connecting two electrical wires to one insulating cutting terminal - Google Patents

Device for connecting two electrical wires to one insulating cutting terminal Download PDF

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Publication number
EP0321726A2
EP0321726A2 EP88119597A EP88119597A EP0321726A2 EP 0321726 A2 EP0321726 A2 EP 0321726A2 EP 88119597 A EP88119597 A EP 88119597A EP 88119597 A EP88119597 A EP 88119597A EP 0321726 A2 EP0321726 A2 EP 0321726A2
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EP
European Patent Office
Prior art keywords
clamping
tongues
tongue
clamping tongue
terminal
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.)
Granted
Application number
EP88119597A
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German (de)
French (fr)
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EP0321726B1 (en
EP0321726A3 (en
Inventor
Hans Ing.-Grad. Scholtholt
Ewald Ing.-Grad. Steiner
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT88119597T priority Critical patent/ATE94308T1/en
Publication of EP0321726A2 publication Critical patent/EP0321726A2/en
Publication of EP0321726A3 publication Critical patent/EP0321726A3/en
Application granted granted Critical
Publication of EP0321726B1 publication Critical patent/EP0321726B1/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
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base

Definitions

  • the invention relates to a device for connecting two jumper wires to an insulation displacement terminal, in particular for distributors of telephone systems.
  • Such an insulation displacement clamp is, for. B. become known from DE-OS 33 11 447.
  • an elongated insulation piercing, punched out of flat material has clamping tongues which extend in the longitudinal direction and which are separated from one another by a shear cut and interlaced with one another. Insulated jumper wires can be pressed into the resulting slot, the front edges of the clamping tongues cutting through the insulation, so that the wire core is clamped in contacting manner in the clamping area of the clamping tongues.
  • a double insulation displacement clamp is provided with three clamping tongues, of which the two outer ones are at least twisted by the material thickness compared to the middle one.
  • the invention has for its object to improve the contact reliability of the insulation displacement. This task is accomplished by the Invention according to claim 1 solved.
  • the form-fitting fixing of the middle clamping tongue in the insulating body reliably avoids evasion with one-sided assignment.
  • the insulation displacement function of the insulation displacement terminal is independent of whether one or two jumper wires are connected.
  • the middle clamping tongue can now be kept considerably narrower, which reduces the overall width of the insulation displacement clamp.
  • the insulating body must be designed so that the cutting edge on the end face and the clamping surfaces of the middle clamping tongue are exposed for the jumper wire to be connected.
  • the middle clamping tongues is fixed on its end face. It is thus effectively supported at both ends against lateral deflection.
  • the bracket must be kept so narrow that the side cut edges of the middle clamping tongue protrude from it. This enables a safe penetration of the jumper wire insulation and a perfect contact.
  • the end face of the bracket can be pointed or rounded to facilitate the transverse insertion of the jumper wire in the device.
  • the insulating body is expediently provided with projections which are arranged over the free end of the insulation displacement terminal. The distance between these protrusions and the free end of the insulation displacement terminal is approximately equal to the jumper wire diameter. This creates a receiving opening for inserting the jumper wire before the final connection. This allows z. B. all jumper wires of a terminal block are first loosely inserted and then contacted in a row or with a multi-tool in a short time.
  • the middle clamping tongue can be held over a large area in the insulating body. Since the connected jumper wire is pushed as deep as possible into the clamping slot, the contact point is in the immediate vicinity of the clamping point. As a result, the bending moment remains so low that the cantilevered portion of the central clamping tongues is not significantly bent, whereby the clamping tongue can be clamped without play by the development according to claim 5.
  • the middle clamping tongue Since the middle clamping tongue is held in the immediate vicinity of the clamping zone, it only has to have a low intrinsic stiffness. This leads to the development according to claim 9.
  • the tapering of the middle clamping tongue allows the outer clamping tongues to be widened correspondingly towards the base, which increases the clamping force accordingly, or as a result of which the overall width of the insulation displacement clamps can be further reduced.
  • Figures 1 and 2 show a cross section through an insulating body 1 with a receiving chamber 2 for a cutting Terminal 3. This is provided with two clamping slots 4 into which insulated jumper wires 5 can be pressed in from the free end face of the insulation displacement terminal 3.
  • the clamping slots 4 are formed between three mutually parallel clamping tongues 6, of which the two outer ones lie in one plane.
  • the middle clamping tongue 6 is torn out of this plane by scissors and has a crank at the common foot end of the clamping tongues 6, the height of which approximately corresponds to the material thickness.
  • the middle clamping tongue 6 is tapered at its free end and protrudes into a corresponding recess in a holding bracket 7 of the insulating material body 1, as a result of which it is held against lateral deflection.
  • the two outer clamping limbs 6 are provided on their end face with a run-in slope which supports the lateral deflection of the clamping limb when the jumper wire is pressed in.
  • FIG. 3 shows a perspective view of a section through the insulating material body 1 with a cutting clamp 3 partially inserted into the receiving chamber 2. This can be moved in the direction indicated by the arrow into the position shown in FIG. 2.
  • the middle clamping tongue 6 engages in a guide shaft 8, the width of which corresponds to the width of the clamping tongue 6.
  • the guide shaft 8 is slightly tapered at its free end and has an oversize at this point relative to the clamping tongue 6, which ensures a play-free fit.
  • FIG. 4 shows the insulating material body 1 with the insulation displacement clamp 3 according to FIG. 2 with a connected jumper wire 5
  • FIG. 5 shows a plan view of the insulating material body 1 with the insulation displacement clamp 3 according to FIG. 4.
  • the receiving chamber 2 consists of three sub-chambers, which are arranged in a staggered manner in accordance with the position of the clamping tongues 6.
  • the central clamping tongue 6 is guided laterally without play in its central partial chamber designed as a guide channel (8).
  • the outer partial chambers are wider than the clamping legs 3, so that they can move away from the middle clamping slot 6.
  • the insulation displacement terminal 3 is fixed at its other end in the insulating body 1 (FIG. 2). This ensures that the clamping forces are completely transferred from the central clamping tongue 6 into the insulating body 1.
  • the spring ratios therefore remain independent of whether one or two jumper wires are connected.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Aerials (AREA)
  • Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
  • Communication Cables (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

The insulation-penetrating terminal (3) is inserted in a plastic body (1) and has three mutually parallel terminal tabs (6) between which there are constructed two terminal slots (4) for the two connecting wires (5). The centre terminal tab is bent out of the plane of the two outer terminal tabs and is held in a corresponding depression in a positively locking manner, without play with respect to lateral deflection. In consequence, a constant terminal force is achieved irrespective of whether connecting wires (5) are fitted to one or both terminal slots (4). <IMAGE>

Description

Die Erfindung bezieht sich auf eine Einrichtung zum Anschließen zweier Schaltdrähte an eine Schneidklemme, insbesondere für Verteiler von Fernsprechanlagen.The invention relates to a device for connecting two jumper wires to an insulation displacement terminal, in particular for distributors of telephone systems.

Eine derartige Schneidklemme ist z. B. durch die DE-OS 33 11 447 bekannt geworden. Danach weist eine längliche, aus flachem Ma­terial gestanzte Schneidklemme sich in der Längsrichtung erstrek­kende Klemmzungen auf, die durch einen Scherschnitt voneinander getrennt und gegeneinander verschränkt sind. In den dadurch ent­stehenden Schlitz können isolierte Schaltdrähte eingedrückt wer­den, wobei die Stirnkanten der Klemmzungen die Isolation durch­schneiden, so daß der Drahtkern im Klemmbereich der Klemmzungen zwischen diesen kontaktgebend eingeklemmt wird. Eine Doppel­schneidklemme ist mit drei Klemmzungen versehen, von denen die beiden äußeren gegenüber der mittleren zumindest um die Material­dicke verschränkt sind. Es ist üblich, derartige Schneidklemmen in Isolierstoffkörper so einzusetzen, daß die äußeren Klemmzun­gen in der Materialebene von der mittleren weg auslenkbar sind. Dabei besteht die Gefahr, daß beim Anschließen nur eines Schalt­drahtes die mittlere Klemmzunge ebenfalls ausweicht, wodurch sich die Klemmkraft verringert. Auf jeden Fall ergeben sich bei einseitiger und bei doppelseitiger Belegung mit Schaltdrähten unterschiedliche Klemmverhältnisse, die zu unterschiedlichen Klemmkräften führen können. Diese Unterschiede können dadurch verringert werden, daß die mittlere Klemmzunge gegenüber den äußeren breiter ausgebildet wird, was jedoch zu einer größeren Gesamtbreite der Schneidklemme führt.Such an insulation displacement clamp is, for. B. become known from DE-OS 33 11 447. According to this, an elongated insulation piercing, punched out of flat material, has clamping tongues which extend in the longitudinal direction and which are separated from one another by a shear cut and interlaced with one another. Insulated jumper wires can be pressed into the resulting slot, the front edges of the clamping tongues cutting through the insulation, so that the wire core is clamped in contacting manner in the clamping area of the clamping tongues. A double insulation displacement clamp is provided with three clamping tongues, of which the two outer ones are at least twisted by the material thickness compared to the middle one. It is customary to use such insulation displacement clamps in insulating material bodies in such a way that the outer clamping tongues in the material plane can be deflected away from the middle. There is a risk that when connecting only one jumper wire, the middle clamping tongue also dodges, which reduces the clamping force. In any case, with one-sided and double-sided assignment with jumper wires, different clamping conditions result, which can lead to different clamping forces. These differences can be reduced by making the middle clamping tongue wider than the outer one, but this leads to a larger overall width of the insulation displacement clamp.

Der Erfindung liegt die Aufgabe zugrunde, die Kontaktsicherheit der Schneidklemme zu verbessern. Diese Aufgabe wird durch die Erfindung gemäß Anspruch 1 gelöst. Durch die formschlüssige Festlegung der mittleren Klemmzunge im Isolierstoffkörper wird ein Ausweichen bei einseitiger Belegung sicher vermieden. Die Schneid- und Klemmfunktion der Schneidklemme ist unabhängig da­von, ob ein oder zwei Schaltdrähte angeschlossen werden. Die mittlere Klemmzunge kann nun erheblich schmaler gehalten werden, wodurch sich die Gesamtbreite der Schneidklemme verringert. Der Isolierstoffkörper muß jedoch so gestaltet sein, daß die stirnseitige Schneidkante und die Klemmflächen der mittleren Klemmzunge für den anzuschließenden Schaltdraht freiliegen.The invention has for its object to improve the contact reliability of the insulation displacement. This task is accomplished by the Invention according to claim 1 solved. The form-fitting fixing of the middle clamping tongue in the insulating body reliably avoids evasion with one-sided assignment. The insulation displacement function of the insulation displacement terminal is independent of whether one or two jumper wires are connected. The middle clamping tongue can now be kept considerably narrower, which reduces the overall width of the insulation displacement clamp. However, the insulating body must be designed so that the cutting edge on the end face and the clamping surfaces of the middle clamping tongue are exposed for the jumper wire to be connected.

Vorteilhafte Weiterbildungen der Erfindung sind in den Ansprü­chen 2 bis 9 gekennzeichnet:Advantageous developments of the invention are characterized in claims 2 to 9:

Durch die Weiterbildung nach den Ansprüchen 2 und 3 wird die mittlere Klemmzungen an ihrer Stirnseite festgelegt. Sie ist damit an beiden Enden gegen seitliche Auslenkung wirksam abge­stützt. Der Haltebügel ist so schmal zu halten, daß die seit­lichen Schnittkanten der mittleren Klemmzunge aus ihm heraus­ragen. Dies ermöglicht eine sichere Durchdringung der Schalt­drahtisolation und eine einwandfreie Kontaktgabe. Die Stirn­seite des Haltebügels kann zugespitzt oder abgerundet ausgebil­det sein, um daß transversale Einlegen des Schaltdrahtes in die Einrichtung zu erleichtern. Der Isolierstoffkörper ist zweck­mäßigerweise mit Vorsprüngen versehen, die über dem freien Ende der Schneidklemme angeordnet sind. Der Abstand zwischen diesen Vorsprüngen und dem freien Ende der Schneidklemme ist annähernd gleich dem Schaltdrahtdurchmesser. Dadurch entsteht eine Aufnah­meöffnung zum Einlegen des Schaltdrahtes vor dem endgültigen Anschließen. Dadurch können z. B. sämtliche Schaltdrähte einer Anschlußleiste zunächst lose eingelegt und dann in einer Folge oder mit einem Vielfachwerkzeug in kurzer Zeit kontaktiert wer­den.Through the development according to claims 2 and 3, the middle clamping tongues is fixed on its end face. It is thus effectively supported at both ends against lateral deflection. The bracket must be kept so narrow that the side cut edges of the middle clamping tongue protrude from it. This enables a safe penetration of the jumper wire insulation and a perfect contact. The end face of the bracket can be pointed or rounded to facilitate the transverse insertion of the jumper wire in the device. The insulating body is expediently provided with projections which are arranged over the free end of the insulation displacement terminal. The distance between these protrusions and the free end of the insulation displacement terminal is approximately equal to the jumper wire diameter. This creates a receiving opening for inserting the jumper wire before the final connection. This allows z. B. all jumper wires of a terminal block are first loosely inserted and then contacted in a row or with a multi-tool in a short time.

Durch die Weiterbildung nach Anspruch 4 kann die mittlere Klemm­zunge großflächig im Isolierstoffkörper gehalten werden. Da der angeschlossen Schaltdraht so tief wie möglich in den Klemm­schlitz eingedrückt wird, liegt die Kontaktstelle in unmittel­barer Nachbarschaft der Einspannstelle. Dadurch bleibt das Bie­gemoment so gering, daß der freiragende Abschnitt der mittleren Klemmzungen nicht nennenswert verbogen wird, wobei durch die Weiterbildung nach Anspruch 5 eine spielfreie Einspannung der Klemmzunge möglich ist.Through the development according to claim 4, the middle clamping tongue can be held over a large area in the insulating body. Since the connected jumper wire is pushed as deep as possible into the clamping slot, the contact point is in the immediate vicinity of the clamping point. As a result, the bending moment remains so low that the cantilevered portion of the central clamping tongues is not significantly bent, whereby the clamping tongue can be clamped without play by the development according to claim 5.

Ein Höchstmaß an Stabilität kann durch die Zusammenfassung der Merkmale nach den Ansprüchen 2 bis 5 erreicht werden.A maximum of stability can be achieved by combining the features according to claims 2 to 5.

Die Weiterbildungen nach den Ansprüchen 6 und 7 ermöglichen ein Ausweichen der äußeren Klemmzungen in der Materialebene, d. h. über der Schnittkante. Durch die Führung im Kunststoffkörper wird dabei gewährleistet, daß die äußeren Klemmzungen nicht tordieren oder senkrecht zur Materialebene ausweichen können, so daß eine hohe Klemmkraft gewährleistet ist.The developments according to claims 6 and 7 enable the outer clamping tongues to evade in the material plane, ie. H. over the cut edge. The guidance in the plastic body ensures that the outer clamping tongues cannot twist or dodge perpendicular to the material plane, so that a high clamping force is ensured.

Die Weiterbildung nach Anspruch 8 ermöglicht eine vollkommene Trennung der Klemmzungen mittels eines einfachen Scherschnittes bis in die unmittelbare Nähe ihres gemeinsamen Basisabschnittes. Dies macht zusätzliche Trennschlitze zum Freistanzen der Zungen wie nach der DE-OS 33 11 447 überflüssig.The development according to claim 8 enables a complete separation of the clamping tongues by means of a simple shear cut into the immediate vicinity of their common base section. This makes additional separating slots for punching out the tongues as in DE-OS 33 11 447 superfluous.

Da die mittlere Klemmzunge in unmittelbarer Nähe der Klemmzone gehalten ist, muß sie nur eine geringe Eigensteifigkeit aufwei­sen. Dies führt zur Weiterbildung nach Anspruch 9. Durch die Verjüngung der mittleren Klemmzunge können die äußeren Klemm­zungen zur Basis hin entsprechend verbreitert werden, wodurch sich die Klemmkraft entsprechend erhöht, oder wodurch die Gesamtbreite der Schneidklemmen weiter verringert werden kann.Since the middle clamping tongue is held in the immediate vicinity of the clamping zone, it only has to have a low intrinsic stiffness. This leads to the development according to claim 9. The tapering of the middle clamping tongue allows the outer clamping tongues to be widened correspondingly towards the base, which increases the clamping force accordingly, or as a result of which the overall width of the insulation displacement clamps can be further reduced.

Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert.
Die Figuren 1 und 2 zeigen einen Querschnitt durch einen Iso­lierstoffkörper 1 mit einer Aufnahmekammer 2 für eine Schneid­ klemme 3. Diese ist mit zwei Klemmschlitzen 4 versehen, in die isolierte Schaltdrähte 5 von der freien Stirnseite der Schneid­klemme 3 her eingedrückt werden können. Die Klemmschlitze 4 werden zwischen drei zueinander im wesentlichen parallelen Klemmzungen 6 gebildet, von denen die beiden äußeren in einer Ebene liegen. Die mittlere Klemmzunge 6 ist durch Scheren aus dieser Ebene herausgerissen und weist an dem gemeinsamen Fuß­ende der Klemmzungen 6 eine Kröpfung auf, deren Höhe annähernd der Materialdicke entspricht. Die mittlere Klemmzunge 6 ver­läuft an ihrem freien Ende zugespitzt und ragt in eine ent­sprechende Vertiefung eines Haltebügels 7 des Isolierstoffkör­pers 1 hinein, wodurch sie gegen seitliche Auslenkung gehalten ist. Die beiden äußeren Klemmschenkel 6 sind an ihrer Stirnsei­te mit einer Einlaufschräge versehen, die die seitliche Aus­lenkung des Klemmschenkels beim Eindrücken des Schaltdrahtes unterstützt.The invention is explained in more detail below on the basis of an exemplary embodiment shown in the drawing.
Figures 1 and 2 show a cross section through an insulating body 1 with a receiving chamber 2 for a cutting Terminal 3. This is provided with two clamping slots 4 into which insulated jumper wires 5 can be pressed in from the free end face of the insulation displacement terminal 3. The clamping slots 4 are formed between three mutually parallel clamping tongues 6, of which the two outer ones lie in one plane. The middle clamping tongue 6 is torn out of this plane by scissors and has a crank at the common foot end of the clamping tongues 6, the height of which approximately corresponds to the material thickness. The middle clamping tongue 6 is tapered at its free end and protrudes into a corresponding recess in a holding bracket 7 of the insulating material body 1, as a result of which it is held against lateral deflection. The two outer clamping limbs 6 are provided on their end face with a run-in slope which supports the lateral deflection of the clamping limb when the jumper wire is pressed in.

Figur 3 zeigt perspektivisch einen Schnitt durch den Isolier­stoffkörper 1 mit einer teilweise in die Aufnahmekammer 2 einge­schobenen Schneidklemme 3. Diese kann entsprechend der ange­gebenen Pfeilrichtung bis in die in Figur 2 angegebene Position verschoben werden. Dabei greift die mittlere Klemmzunge 6 in einen Führungsschacht 8 ein, dessen Weite der Breite der Klemmzunge 6 entspricht. Der Führungsschacht 8 ist an seinen freien Ende geringfügig verjüngt und weist an dieser Stelle ge­genüber der Klemmzunge 6 ein Übermaß auf, das einen spielfrei­en Sitz sichert.FIG. 3 shows a perspective view of a section through the insulating material body 1 with a cutting clamp 3 partially inserted into the receiving chamber 2. This can be moved in the direction indicated by the arrow into the position shown in FIG. 2. The middle clamping tongue 6 engages in a guide shaft 8, the width of which corresponds to the width of the clamping tongue 6. The guide shaft 8 is slightly tapered at its free end and has an oversize at this point relative to the clamping tongue 6, which ensures a play-free fit.

Figur 4 zeigt den Isolierstoffkörper 1 mit der Schneidklemme 3 nach Figur 2 mit einem angeschlossenen Schaltdraht 5, Figur 5 eine Draufsicht auf den Isolierstoffkörper 1 mit der Schneidklemme 3 nach Figur 4.FIG. 4 shows the insulating material body 1 with the insulation displacement clamp 3 according to FIG. 2 with a connected jumper wire 5, FIG. 5 shows a plan view of the insulating material body 1 with the insulation displacement clamp 3 according to FIG. 4.

Beim Eindrücken des Schaltdrahtes 5 wurde dessen Isolation durch die stirnseitigen Schneidkanten der Klemmschenkel 6 kon­taktgebend durchdrungen. Der Klemmschlitz ist entsprechend auf­geweitet und der zugehörige äußere Klemmschenkel 6 abgespreizt.When the jumper wire 5 was pressed in, its insulation was penetrated in a contact-making manner by the cutting edges of the clamping legs 6 on the end face. The clamping slot is widened accordingly and the associated outer clamping leg 6 spread apart.

Die Aufnahmekammer 2 besteht aus drei Teilkammern, die ent­sprechend der Lage der Klemmzungen 6 stufenförmig versetzt an­geordnet sind. Die mittlere Klemmzunge 6 ist in ihrer als Füh­rungskanal (8) ausgebildeten mittleren Teilkammer seitlich spielfrei geführt. Die äußeren Teilkammern sind breiter als die Klemmschenkel 3, so daß diese vom mittleren Klemmschlitz 6 weg ausweichen können. Die Schneidklemme 3 ist an ihrem anderen En­de im Isolierstoffkörper 1 festgelegt (Figur 2). Dadurch ist sichergestellt, daß die Klemmkräfte von der mittleren Klemmzun­ge 6 vollständig in den Isolierstoffkörper 1 übergeleitet wer­den. Die Federverhältnisse bleiben daher unabhängig davon, ob ein oder zwei Schaltdrähte angeschlossen werden.The receiving chamber 2 consists of three sub-chambers, which are arranged in a staggered manner in accordance with the position of the clamping tongues 6. The central clamping tongue 6 is guided laterally without play in its central partial chamber designed as a guide channel (8). The outer partial chambers are wider than the clamping legs 3, so that they can move away from the middle clamping slot 6. The insulation displacement terminal 3 is fixed at its other end in the insulating body 1 (FIG. 2). This ensures that the clamping forces are completely transferred from the central clamping tongue 6 into the insulating body 1. The spring ratios therefore remain independent of whether one or two jumper wires are connected.

Claims (9)

1. Einrichtung zum Anschließen zweier Schaltdrähte (5) an eine Schneidklemme (3), insbesondere für Verteiler von Fernsprechan­lagen, wobei die Schneidklemme (3) mit zwei Klemmschlitzen (4) versehen ist, in die die Schaltdrähte (5) kontaktgebend ein­drückbar sind, wobei die Schneidklemme (3) im wesentlichen pa­rallele freiragende Klemmzungen (6) aufweist, zwischen denen die Klemmschlitze (4) ausgebildet sind, wobei die Schneidklemme (3) zumindest bis in die Nähe des Klemmbereichs in eine Aufnah­mekammer (2) eines Isolierstoffkörpers (1) eingesetzt ist und wobei die äußeren Klemmzungen (6) von der mittleren weg auslenk­bar sind,
dadurch gekennzeichnet,
daß die mittlere Klemmzunge (6) in unmittelbarer Nähe des Schneid- und Klemmbereichs gegen seitliche Auslenkung in der Materialebene im Isolierstoffkörper (1) formschlüssig gehalten ist.1. Device for connecting two jumper wires (5) to an insulation displacement terminal (3), in particular for distributors of telephone systems, the insulation displacement terminal (3) being provided with two clamping slots (4) into which the jumper wires (5) can be pressed in a contact-making manner the cutting clamp (3) has essentially parallel cantilevered clamping tongues (6) between which the clamping slots (4) are formed, the cutting clamp (3) being inserted into a receiving chamber (2) of an insulating material body (1) at least up to the vicinity of the clamping region and the outer clamping tongues (6) can be deflected away from the middle,
characterized,
that the middle clamping tongue (6) in the immediate vicinity of the cutting and clamping area against lateral deflection in the material plane in the insulating body (1) is held positively. 2. Einrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die mittlere Klemmzunge (6) in ihrem Endbereich von einem schmalen Haltebügel (7) umgriffen ist und
daß sich die Stirnseite der mittleren Klemmzunge (6) und der Haltebügel (7) wechselseitig formschlüssig umgreifen.2. Device according to claim 1,
characterized,
that the middle clamping tongue (6) is encompassed in its end region by a narrow retaining bracket (7) and
that the end of the middle clamping tongue (6) and the retaining bracket (7) alternately engage in a form-fitting manner. 3. Einrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß die Stirnseite der mittleren Klemmzunge (6) mit einem schma­len und/oder sich verjüngenden Vorsprung versehen ist der in eine entsprechende Vertiefung des Haltebügels (7) spielarm ein­greift.3. Device according to claim 2,
characterized,
that the end face of the middle clamping tongue (6) is provided with a narrow and / or tapering projection which engages in a corresponding recess of the holding bracket (7) with little play. 4. Einrichtung nach Anspruche 1, 2 oder 3,
dadurch gekennzeichnet,
daß die mittlere Klemmzunge (6) aus der Materialebene der äuße­ren Klemmzungen (6) zumindest um Materialdicke versetzt ist und auf der der freien Stirnseite abgewandten Seite des Klemmbe­reichs unmittelbar an diesen angrenzend in einem schlitzartigen mittleren Führungskanal (8) der Aufnahmekammer (2) an den Schnittkanten spielarm gehalten ist.4. Device according to claims 1, 2 or 3,
characterized,
that the middle clamping tongue (6) from the material plane of the outer clamping tongues (6) is at least offset by material thickness and on the side of the clamping area facing away from the free end face, directly adjacent to it, in a slot-like central guide channel (8) of the receiving chamber (2) is held with little play at the cutting edges. 5. Einrichtung nach Anspruch 4,
dadurch gekennzeichnet,
daß der Führungskanal (8) des aus Kunststoff bestehenden Isolier­stoffkörpers (1) in der Nähe des Klemmbereichs eine Verengung aufweist, deren lichte Weite vor dem Einsetzen der Schneid­klemme (3) etwas geringer ist als die Breite der mittleren Klemm­zunge (6).5. Device according to claim 4,
characterized by
that the guide channel (8) of the plastic insulating body (1) in the vicinity of the clamping area has a constriction, the clear width before insertion of the insulation piercing (3) is slightly less than the width of the central clamping tongue (6). 6. Einrichtung nach Anspruch 4 oder 5,
dadurch gekennzeichnet,
daß die äußeren Klemmzungen (6) in schlitzartigen äußeren Teil­kammern der Aufnahmekammern (2) geführt sind und
daß die äußeren Teilkammern breiter sind als die zugehörigen Klemmzungen (6).6. Device according to claim 4 or 5,
characterized by
that the outer clamping tongues (6) are guided in slot-like outer partial chambers of the receiving chambers (2) and
that the outer partial chambers are wider than the associated clamping tongues (6). 7. Einrichtung nach Anspruch
dadurch gekennzeichnet,
daß die verschiedenen Aufnahmen für die Klemmzungen (6) deren Materialdicke angepaßt sind und entsprechend der Lage der Klemm­zungen (6) gegeneinander stufenartig versetzt angeordnet sind.7. Device according to claim
characterized,
that the different receptacles for the clamping tongues (6) are adapted to their material thickness and are arranged in a step-like manner offset from one another in accordance with the position of the clamping tongues (6). 8. Einrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die mittlere Klemmzunge (6) an ihrem unfreien Fußende eine kurze Kröpfung aufweist,
daß die Höhe der Kröpfung mindestens gleich der halben Material­dicke ist und
daß die mittlere Klemmzunge zwischen der Kröpfung und dem freien Ende annähernd parallel zu den äußeren Klemmzungen (6) verläuft.8. Device according to one of the preceding claims,
characterized,
that the middle clamping tongue (6) has a short offset at its unfree foot end,
that the height of the offset is at least equal to half the material thickness and
that the middle clamping tongue between the crank and the free end runs approximately parallel to the outer clamping tongues (6). 9. Einrichtung nach Anspruch 8,
dadurch gekennzeichnet,
daß sich die mittlere Klemmzunge (6) in ihrer Breite zu ihrer Basis hin verjüngt.9. Device according to claim 8,
characterized,
that the middle clamping tongue (6) tapers in width towards its base.
EP88119597A 1987-12-23 1988-11-24 Device for connecting two electrical wires to one insulating cutting terminal Expired - Lifetime EP0321726B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88119597T ATE94308T1 (en) 1987-12-23 1988-11-24 DEVICE FOR CONNECTING TWO JUMP WIRE TO AN IDC TERMINAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8716920U 1987-12-23
DE8716920U DE8716920U1 (en) 1987-12-23 1987-12-23 Device for connecting two jumper wires to an insulation displacement terminal

Publications (3)

Publication Number Publication Date
EP0321726A2 true EP0321726A2 (en) 1989-06-28
EP0321726A3 EP0321726A3 (en) 1990-05-02
EP0321726B1 EP0321726B1 (en) 1993-09-08

Family

ID=6815436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119597A Expired - Lifetime EP0321726B1 (en) 1987-12-23 1988-11-24 Device for connecting two electrical wires to one insulating cutting terminal

Country Status (7)

Country Link
EP (1) EP0321726B1 (en)
AT (1) ATE94308T1 (en)
AU (1) AU612749B2 (en)
DE (2) DE8716920U1 (en)
FI (1) FI95422C (en)
NO (1) NO172919C (en)
PT (2) PT89322A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2103209A1 (en) * 1971-01-23 1972-08-03 Reliable Electric Co Clamp connector as a connector for two electrical lines
EP0020241A1 (en) * 1979-05-25 1980-12-10 MARS-ALCATEL Société anonyme dite: Connecting device for insulated electrical conductors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311447A1 (en) * 1983-03-29 1984-10-04 Siemens AG, 1000 Berlin und 8000 München CONNECTING TERMINAL FOR THE STRIP-FREE CONNECTION OF ELECTRICAL LADDERS IN DISTRIBUTORS OF TELECOMMUNICATION SYSTEMS, ESPECIALLY TELEPHONE SYSTEMS
US4624521A (en) * 1985-02-26 1986-11-25 Adc Telecommunications Electrical connector and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2103209A1 (en) * 1971-01-23 1972-08-03 Reliable Electric Co Clamp connector as a connector for two electrical lines
EP0020241A1 (en) * 1979-05-25 1980-12-10 MARS-ALCATEL Société anonyme dite: Connecting device for insulated electrical conductors

Also Published As

Publication number Publication date
FI885949A (en) 1989-06-24
NO172919B (en) 1993-06-14
FI95422B (en) 1995-10-13
PT89322A (en) 1989-09-14
EP0321726B1 (en) 1993-09-08
FI95422C (en) 1996-01-25
ATE94308T1 (en) 1993-09-15
NO885737D0 (en) 1988-12-23
EP0321726A3 (en) 1990-05-02
PT8871U (en) 1996-02-29
DE3883941D1 (en) 1993-10-14
DE8716920U1 (en) 1988-02-18
AU612749B2 (en) 1991-07-18
PT8871T (en) 1994-05-31
AU2752288A (en) 1989-06-29
NO172919C (en) 1993-09-22
NO885737L (en) 1989-06-26

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