EP0829115B1 - Cutting terminal for connecting insulated electric wiring - Google Patents

Cutting terminal for connecting insulated electric wiring Download PDF

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Publication number
EP0829115B1
EP0829115B1 EP96914088A EP96914088A EP0829115B1 EP 0829115 B1 EP0829115 B1 EP 0829115B1 EP 96914088 A EP96914088 A EP 96914088A EP 96914088 A EP96914088 A EP 96914088A EP 0829115 B1 EP0829115 B1 EP 0829115B1
Authority
EP
European Patent Office
Prior art keywords
clamping
bends
clamping limbs
connecting device
insulation piercing
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
EP96914088A
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German (de)
French (fr)
Other versions
EP0829115A1 (en
Inventor
Richard Parstorfer
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0829115A1 publication Critical patent/EP0829115A1/en
Application granted granted Critical
Publication of EP0829115B1 publication Critical patent/EP0829115B1/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

Definitions

  • the invention relates to an insulation displacement terminal for connection of insulated electrical jumper wires with at least one between at least two parallel to each other Clamping legs and clamping slits, which are formed on the two clamping legs.
  • Such an insulation displacement connector is described, for example, by DE 88 04 388 U1 became known. Then limit the facing each other Inner edges of the clamping leg the clamping slot.
  • the Clamp legs are angled along the clamp slot provided, whereby the inner edges from the plane of the clamping leg be bent out. By twisting the inner edges this creates a sharp-edged contact with the jumper wire, which makes it easier to cut the insulation. Indeed the core of the jumper wire can also be scored so strongly that the risk of breakage increases.
  • the invention has for its object a cutting clamp to create where the increasingly harder jumper wire insulation securely cut and notching the Jumper wire is prevented and slipping out the wires are difficult.
  • the insulation piercing is now in one Cutting area and a contact area divided, wherein in Cutting area, the inner edges are at an angle to each other and have a sharp edge on the jumper wire.
  • the inner edges of the clamping legs are parallel to each other and lie flat on the core of the jumper wire.
  • the harmful notching is avoided and the risk of breakage decreased.
  • Due to the shear cut the bends form against the Clamping zone has a sharp-edged projection that goes into the movement path of the insulated jumper wire protrudes and the one accidental emergence of the pressed wire the clamping zone considerably more difficult.
  • the bends are directly opposite each other, creating isolation is cut evenly.
  • the training according to claim 3 the isolation incised places of the jumper wire.
  • the clamping edges of the clamping legs are between the two bends, which makes the incisions better on Center the clamping edges.
  • an insulation displacement connector 1 has two mutually parallel clamping leg 2, between which a Clamping slot 3 is formed.
  • the two clamping legs 2 are integral with each other at a foot end, not shown connected and can e.g. by an indented one Jumper wire are spread apart so far that they are resilient are braced against each other.
  • bevels 4 that are V-shaped to each other are inclined.
  • the inlet slopes 4 are along a Bending axis 5, which is parallel to the bevel 4 extends from the material level of the insulation piercing 1 into the bent out the same direction and thus form 2 sharp edges opposite cutting edges 6, on which the insulation of an indented jumper wire cut without difficulty can be.
  • the insulation displacement connector 1 is thereby in an inlet area and divides a clamping area, which directly adjusts to Connects inlet area with the separating slot 3, wherein the bends 7 of the inlet slopes 4 are separated from a clamping zone of the clamping legs 2 by a shear cut 8.
  • the Cutting edges 6 cut the when pressing the jumper wire Isolation like a knife. When pushing the Jumper wire press the inner edges of the clamping slot 3 in the incision, which creates the isolation is pushed further apart and the clamping leg be securely contacted with the core of the jumper wire.
  • the two bends are 4 in opposite directions from the material plane bent out.
  • the clamping edges of the clamping legs are now there 2 offset in the middle between the two Cutting edges 6 so that they are better on the resulting Center the incision of the insulation.
  • Figure 5 are the two clamping legs 2 by about half the material thickness offset from each other. Dislocations and angling are directed in opposite directions. Thereby the distance between the two cutting edges 6 is considerable reduced so that the incision and contact is relieved accordingly.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Processing Of Terminals (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

In its entry region along the entry slopes the cutting terminal has projections (7) separated from the clamping section by a shear edge (8). The bevels permit knife-like cutters against which the insulation of a wire pressed thereinto is reliably cut. In the clamping region the clamping arms are mutually parallel, thus preventing the wire core from being notched.

Description

Die Erfindung bezieht sich auf eine Schneidklemme zum Anschließen von isolierten elektrischen Schaltdrähten mit zumindest einem zwischen zumindest zwei zueinander parallelen Klemmschenkeln ausgebildeten Klemmschlitz und Einlaufschrägen, die an den beiden Klemmschenkeln ausgebildet sind.The invention relates to an insulation displacement terminal for connection of insulated electrical jumper wires with at least one between at least two parallel to each other Clamping legs and clamping slits, which are formed on the two clamping legs.

Eine derartige Schneidklemme ist zum Beispiel durch die DE 88 04 388 U1 bekannt geworden. Danach begrenzen die einander zugewandten Innenkanten der Klemmschenkel den Klemmschlitz. Die Klemmschenkel sind entlang dem Klemmschlitz mit Abwinkelungen versehen, wodurch die Innenkanten aus der Ebene der Klemmschenkel herausgebogen werden. Durch die Verdrehung der Innenkanten entsteht so ein scharfkantiger Kontakt zum Schaltdraht, der das Einschneiden der Isolation erleichtert. Allerdings kann auch der Kern des Schaltdrahts so stark eingekerbt werden, daß sich die Bruchgefahr erhöht. Such an insulation displacement connector is described, for example, by DE 88 04 388 U1 became known. Then limit the facing each other Inner edges of the clamping leg the clamping slot. The Clamp legs are angled along the clamp slot provided, whereby the inner edges from the plane of the clamping leg be bent out. By twisting the inner edges this creates a sharp-edged contact with the jumper wire, which makes it easier to cut the insulation. Indeed the core of the jumper wire can also be scored so strongly that the risk of breakage increases.

Durch die Research Disclosure, New York, US, Nr. 303, Juli 1989, Seite 514 ist eine Schneidklemme bekannt geworden, bei der die Kanten ihres Einlaufbereichs durch Prägen messerartig zugespitzt sind. Dadurch wird die Isolation leichter eingeschitten und durchtrennt. Der kurze Klemmschlitz zur Aufnahme des Schaltdrahts ist freigeschitten. Die Klemmkanten bleiben aufgrund der stabilen Klemmschenkel nach dem Eindrücken des Schaltdrahts parallel, so daß der entsprechend verformte Draht durch die hohe Reibungskraft gegen Herausrutschen gehalten ist.By Research Disclosure, New York, US, No. 303, July 1989, page 514, an insulation displacement connector has become known at the edges of their inlet area by knife-like embossing are sharpened. This makes it easier to cut the insulation and severed. The short clamping slot for admission the jumper wire is cut free. The clamping edges remain due to the stable clamping leg after pressing in Jumper wire in parallel so that the correspondingly deformed The high friction force keeps the wire from slipping out is.

Der Erfindung liegt die Aufgabe zugrunde, eine Schneidklemme zu schaffen, bei der die zunehmend härter werdende Schaltdrahtisolation sicher eingeschnitten und das Einkerben der Schaltdrahtader verhindert wird und bei der das Herausrutschen der Drähte erschwert wird.The invention has for its object a cutting clamp to create where the increasingly harder jumper wire insulation securely cut and notching the Jumper wire is prevented and slipping out the wires are difficult.

Diese Aufgabe wird durch die Erfindung gemäß Anspruch 1 gelöst. Durch die Erfindung wird nun die Schneidklemme in einen Schneidbereich und einen Kontaktbereich unterteilt, wobei im Schneidbereich die Innenkanten zueinander schräg stehen und scharfkantig auf den Schaltdraht einwirken. In der Klemmzone stehen die Innenkanten der Klemmschenkel zueinander parallel und liegen somit flach am Kern des Schaltdrahts an. Dabei wird das schädliche Einkerben vermieden und die Bruchgefahr verringert. Durch den Scherschnitt bilden die Abwinkelungen gegenüber der Klemmzone einen scharfkantigen Vorsprung, der in die Bewegungsbahn des isolierten Schaltdrahts hineinragt und der ein ungewolltes Heraustreten des eingedrückten Schaltdrahts aus der Klemmzone erheblich erschwert. This object is achieved by the invention according to claim 1. By the invention, the insulation piercing is now in one Cutting area and a contact area divided, wherein in Cutting area, the inner edges are at an angle to each other and have a sharp edge on the jumper wire. In the pinch zone the inner edges of the clamping legs are parallel to each other and lie flat on the core of the jumper wire. Here the harmful notching is avoided and the risk of breakage decreased. Due to the shear cut, the bends form against the Clamping zone has a sharp-edged projection that goes into the movement path of the insulated jumper wire protrudes and the one accidental emergence of the pressed wire the clamping zone considerably more difficult.

Vorteilhafte Weiterbildungen der Erfindung sind in den Ansprüchen 2 bis 6 gekennzeichnet:Advantageous developments of the invention are in the claims Marked 2 to 6:

Durch die Weiterbildung nach Anspruch 2 stehen sich die Abwinkelungen unmittelbar einander gegenüber, wodurch die Isolation gleichmäßig eingeschnitten wird.Through the training according to claim 2, the bends are directly opposite each other, creating isolation is cut evenly.

Durch die Weiterbildung nach Anspruch 3 wird die Isolation an zueinander versetzten Stellen des Schaltdrahts eingeschnitten. Die Klemmkanten der Klemmschenkel liegen zwischen den beiden Abwinklungen, wodurch sich die Einschnitte besser auf die Klemmkanten zentrieren.The training according to claim 3, the isolation incised places of the jumper wire. The clamping edges of the clamping legs are between the two bends, which makes the incisions better on Center the clamping edges.

Durch die Weiterbildung nach Anspruch 4 wird der Schaltdrahtkern symmetrisch zwischen den beiden Klemmschenkeln eingeklemmt, wobei ein auf den Schaltdraht einwirkendes Biegemoment vermieden wird.Through the development according to claim 4, the jumper wire core clamped symmetrically between the two clamping legs, where a bending moment acting on the jumper wire is avoided.

Die Weiterbildungen nach den Ansprüchen 5 und 6 ermöglichen es, die Klemmkanten der Klemmzone und die Schneidkanten der Einlaufschräge einander anzunähern und eine sichere Kontaktgabe zu erreichen.The further developments according to claims 5 and 6 enable it, the clamping edges of the clamping zone and the cutting edges of the Inlet bevels approach each other and secure contact to reach.

Im folgenden wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert.In the following the invention based on in the drawing illustrated embodiments explained in more detail.

Es zeigen:

Figur 1
eine Seitenansicht einer Schneidklemme mit zwei Klemmschenkeln und einer Einlaufschräge,
Figur 2
eine andere Seitenansicht der Schneidklemme nach Figur 1,
Figur 3
eine Draufsicht auf die Schneidklemme nach Figur 1,
Figur 4
eine Draufsicht auf eine andere Schneidklemme mit entgegengesetzt ausgebogenen Abwinklungen im Einlaufbereich und zueinander fluchtenden Klemmschenkeln,
Figur 5
eine Draufsicht auf eine andere Schneidklemme ähnlich Figur 4, jedoch mit zueinander versetzt angeordneten Klemmschenkeln.
Show it:
Figure 1
a side view of a cutting clamp with two clamping legs and an inlet slope,
Figure 2
another side view of the insulation piercing clamp according to FIG. 1,
Figure 3
2 shows a top view of the insulation piercing clamp according to FIG. 1,
Figure 4
1 shows a plan view of another insulation displacement clamp with oppositely bent-out bends in the inlet area and mutually aligned clamping legs,
Figure 5
a plan view of another insulation piercing similar to Figure 4, but with mutually offset clamping legs.

Nach den Figuren 1, 2 und 3 weist eine Schneidklemme 1 zwei zueinander parallele Klemmschenkel 2 auf, zwischen denen ein Klemmschlitz 3 ausgebildet ist. Die beiden Klemmschenkel 2 sind an einem nicht dargestellten Fußende miteinander einstückig verbunden und können z.B. durch einen eingedrückten Schaltdraht soweit auseinandergespreizt werden, daß sie federnd gegeneinander verspannt sind. Die Klemmschenkel 2 bilden an ihrem freien Ende Einlaufschrägen 4, die V-förmig zueinander geneigt sind. Die Einlaufschrägen 4 sind entlang einer Biegeachse 5, die sich parallel zu den Einlaufschrägen 4 erstreckt, aus der Materialebene der Schneidklemme 1 in die gleiche Richtung herausgebogen und bilden damit 2 scharfkantig gegenüberliegende Schneidkanten 6, an denen die Isolation eines eingedrückten Schaltdrahts ohne Schwierigkeiten eingeschnitten werden kann.According to FIGS. 1, 2 and 3, an insulation displacement connector 1 has two mutually parallel clamping leg 2, between which a Clamping slot 3 is formed. The two clamping legs 2 are integral with each other at a foot end, not shown connected and can e.g. by an indented one Jumper wire are spread apart so far that they are resilient are braced against each other. Form the clamping legs 2 at its free end, bevels 4 that are V-shaped to each other are inclined. The inlet slopes 4 are along a Bending axis 5, which is parallel to the bevel 4 extends from the material level of the insulation piercing 1 into the bent out the same direction and thus form 2 sharp edges opposite cutting edges 6, on which the insulation of an indented jumper wire cut without difficulty can be.

Die Schneidklemme 1 ist dadurch in einen Einlaufbereich und einen Klemmbereich unterteilt, der sich unmittelbar an den Einlaufbereich mit dem Trennschlitz 3 anschließt, wobei die Abwinkelungen 7 der Einlaufschrägen 4 von einer Klemmzone der Klemmschenkel 2 durch einen Scherschnitt 8 getrennt sind. Die Schneidkanten 6 schneiden beim Andrücken des Schaltdrahts die Isolation messerartig ein. Beim weiteren Hineinschieben des Schaltdrahts drücken sich die Innenkanten des Klemmschlitzes 3 in den entstandenen Einschnitt ein, wodurch die Isolation noch weiter auseinandergedrückt wird und die Klemmschenkel sicher mit dem Kern des Schaltdrahts kontaktiert werden.The insulation displacement connector 1 is thereby in an inlet area and divides a clamping area, which directly adjusts to Connects inlet area with the separating slot 3, wherein the bends 7 of the inlet slopes 4 are separated from a clamping zone of the clamping legs 2 by a shear cut 8. The Cutting edges 6 cut the when pressing the jumper wire Isolation like a knife. When pushing the Jumper wire press the inner edges of the clamping slot 3 in the incision, which creates the isolation is pushed further apart and the clamping leg be securely contacted with the core of the jumper wire.

Die parallel zueinander fluchtenden Klemmschenkel 2 klemmen sodann den Schaltdrahtkern an in einer Ebene diametral gegenüberliegenden Stellen ein, ohne daß es dabei zu einer schädlichen Einkerbung des Schaltdrahnkerns kommt. Die aus der Ebene der Klemmschenkel 2 scharfkantig vorstehenden Abwinklungen 4 verhindern zudem, daß der Schaltdraht ohne größere Krafteinwirkung aus dem Klemmschlitz 3 herausgezogen werden kann.Clamp the parallel clamping legs 2 then the jumper wire at diametrically opposite in one plane Adjust without being harmful Notch of the switch core comes. The one from the Level of the clamping leg 2 sharp angled protrusions 4 also prevent the jumper wire without major Force pulled out of the clamping slot 3 can be.

Nach den Figuren 4 und 5 sind die beiden Abwinkelungen 4 in einander entgegengesetzter Richtungen aus der Materialebene herausgebogen. Dabei liegen nun die Klemmkanten der Klemmschenkel 2 in der Mitte zwischen den beiden zueinander versetzten Schneidkanten 6, so daß sie sich besser auf den entstandenen Einschnitt der Isolation zentrieren können. Nach Figur 5 sind die beiden Klemmschenkel 2 um etwa die halbe Materialdicke zueinander versetzt. Die Versetzungen und die Abwinklungen sind einander entgegengesetzt gerichtet. Dadurch wird der Abstand zwischen den beiden Schneidkanten 6 erheblich verringert, so daß das Einschneiden und Kontaktieren entsprechend erleichtert wird.According to FIGS. 4 and 5, the two bends are 4 in opposite directions from the material plane bent out. The clamping edges of the clamping legs are now there 2 offset in the middle between the two Cutting edges 6 so that they are better on the resulting Center the incision of the insulation. After Figure 5 are the two clamping legs 2 by about half the material thickness offset from each other. Dislocations and angling are directed in opposite directions. Thereby the distance between the two cutting edges 6 is considerable reduced so that the incision and contact is relieved accordingly.

Claims (6)

  1. Insulation piercing connecting device for connecting insulated electric connecting wires, having at least one clamping slot (3) which is formed between at least two clamping limbs (2) which are parallel to one another, as well as having run-in slopes (4) which are formed at the free end of the clamping limbs (2) and are formed at the frontal free end of the clamping limbs (2), characterized in that the two clamping limbs (2) have bends (7) along the inner edges, which are turned to one another, of the run-in slopes (4), which bends (7) enable the inner edges (for example 6) to protrude from the plane of the clamping limbs (2), in that the bends (7) of the run-in slopes (4) are separated from a clamping zone of the clamping limbs (2) by means of a shearing cut (8), and in that the bends (7) form a projection with respect to the clamping zone.
  2. Insulation piercing connecting device according to Claim 1, characterized in that the bends (7) are bent out in the same direction.
  3. Insulation piercing connecting device according to Claim 1, characterized in that the bends (7) are bent out in opposite directions.
  4. Insulation piercing connecting device according to Claim 1, 2 or 3, characterized in that the clamping limbs (2) are formed so as to be aligned with one another.
  5. Insulation piercing connecting device according to Claim 1, 2 or 3, characterized in that the clamping limbs (2) are arranged offset with respect to one another.
  6. Insulation piercing connecting device according to Claim 5, characterized in that the offset and the bends (7) are directed opposite to one another.
EP96914088A 1995-05-24 1996-05-17 Cutting terminal for connecting insulated electric wiring Expired - Lifetime EP0829115B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19519091 1995-05-24
DE19519091A DE19519091C1 (en) 1995-05-24 1995-05-24 Insulation displacement clamp for connecting insulated electrical jumper wires
PCT/DE1996/000873 WO1996037923A1 (en) 1995-05-24 1996-05-17 Cutting terminal for connecting insulated electric wiring

Publications (2)

Publication Number Publication Date
EP0829115A1 EP0829115A1 (en) 1998-03-18
EP0829115B1 true EP0829115B1 (en) 1999-02-03

Family

ID=7762780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96914088A Expired - Lifetime EP0829115B1 (en) 1995-05-24 1996-05-17 Cutting terminal for connecting insulated electric wiring

Country Status (7)

Country Link
EP (1) EP0829115B1 (en)
AT (1) ATE176554T1 (en)
AU (1) AU5759496A (en)
DE (1) DE19519091C1 (en)
GR (1) GR3029690T3 (en)
WO (1) WO1996037923A1 (en)
ZA (1) ZA963807B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50000619D1 (en) * 2000-02-04 2002-11-14 Siemens Ag Insulation displacement contact and connection clamp
DE20219021U1 (en) * 2002-12-06 2004-04-22 Stocko Contact Gmbh & Co. Kg contact element
DE20304414U1 (en) * 2003-03-19 2004-07-29 Weidmüller Interface Gmbh & Co. Switching device, e.g. relay, with connections for electrical conductor, has adapter for attaching connection terminals with insulating housing for insulation penetrating blade/terminal contacts
DE102008033905A1 (en) * 2008-07-18 2010-01-21 Wago Verwaltungsgesellschaft Mbh Conductor connection element for attaching electrical conductor, has sharp-edged insulation cuts that are aligned at angle which is less than angle at which contact-cuts are aligned with respect to longitudinal extension axis of slot

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2344974A1 (en) * 1976-03-15 1977-10-14 Morel Atel Electromec Connection tab for single wires - enables contact to be made by chisel edges of keyhole shaped slot
DE8804388U1 (en) * 1988-03-31 1988-08-11 Siemens AG, 1000 Berlin und 8000 München Insulation clamp, for connecting an electrical jumper wire
DE4018164C2 (en) * 1990-06-01 1994-02-10 Krone Ag Insulation displacement contact
DE4126068C1 (en) * 1991-08-02 1992-12-03 Krone Ag, 1000 Berlin, De

Also Published As

Publication number Publication date
ATE176554T1 (en) 1999-02-15
GR3029690T3 (en) 1999-06-30
AU5759496A (en) 1996-12-11
EP0829115A1 (en) 1998-03-18
DE19519091C1 (en) 1996-06-05
WO1996037923A1 (en) 1996-11-28
ZA963807B (en) 1996-11-25

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