EP0218133B1 - Screwless electrical terminal - Google Patents

Screwless electrical terminal Download PDF

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Publication number
EP0218133B1
EP0218133B1 EP86112909A EP86112909A EP0218133B1 EP 0218133 B1 EP0218133 B1 EP 0218133B1 EP 86112909 A EP86112909 A EP 86112909A EP 86112909 A EP86112909 A EP 86112909A EP 0218133 B1 EP0218133 B1 EP 0218133B1
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EP
European Patent Office
Prior art keywords
leaf spring
spring member
opening
shaped
angled
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
EP86112909A
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German (de)
French (fr)
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EP0218133A2 (en
EP0218133A3 (en
Inventor
Hans Woertz
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Oskar Woertz Inhaber Hans Woertz
Original Assignee
Oskar Woertz Inhaber Hans Woertz
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Publication of EP0218133A2 publication Critical patent/EP0218133A2/en
Publication of EP0218133A3 publication Critical patent/EP0218133A3/en
Application granted granted Critical
Publication of EP0218133B1 publication Critical patent/EP0218133B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring

Definitions

  • the present invention relates to a screwless electrical clamp with an approximately V-shaped leaf spring piece, the V-legs of which have mutually angled, overlapping end portions, each of which is provided with a first or second opening for pushing through at least one electrical conductor to be connected, wherein in the unloaded state of the leaf spring piece which have two openings in relation to each other, but can be made to coincide with each other by elastic pushing together of the V-legs, and with an electrically conductive support and contact piece to which one of the V-legs of the leaf spring piece is attached and which has an approximately parallel to the angled end portion of the attached leg extending tab with a third opening, which is congruent with the opening of the end portion of the attached V-leg, between the tab of the support and contact tstükkes and the approximately parallel end portion of the attached V-leg there is a free space in which the angled end portion of the movable other V-leg of the leaf spring piece engages with play.
  • a screwless electrical terminal with the features defined above is known from DE-B-1 105 937. Since the end portions of the V-shaped leaf spring piece provided with openings, as well as the tab provided on the support and contact piece and provided with a third opening, consist of thin-walled sheets undesirable deformations of the conductor to be clamped during operation. In addition, the contact between the conductor and the contact piece is sometimes very poor.
  • the object of the invention is to provide a clamp of the type mentioned, which is technically simple, takes up relatively little space and still offers a relatively large contact area between the conductor and contact piece, prevents undesirable deformations, even thin conductors, and can be produced inexpensively.
  • the clamp found to solve this problem has the features defined in the characterizing part of claim 1.
  • An expedient development of the clamp according to the invention is defined in the dependent patent claim.
  • the screwless electrical terminal 10 shown in FIGS. 1 to 4 has an essentially approximately V-shaped leaf spring piece 11 with a first and a second V-leg 11a or 11b, each of which extends in a straight line and in the V-apex through a circular arc extending apex 11c are interconnected. End parts 11d and 11e of the two V-legs facing away from the apex part 11c are angled towards each other and are arranged and designed such that they overlap. The angled end parts 11d and 11e are each provided with a first or second rectangular opening 12 or 13.
  • the V-legs 11a and 11b enclose between them an angle in the range from 110 ° to 140 °, preferably from 130 °, and the two openings 12 and 13 have positions offset from one another, as clearly shown in Fig. 1 can be seen.
  • the angled end parts 11d and 11e expediently each have at least in part an approximately circular arc shape around the axis of curvature 14 of the apex part 11c.
  • the leaf spring piece 11 is made of electrically conductive material, for example stainless steel or spring bronze.
  • One (11a) of the V-legs 11a and 11b is fastened to an electrically conductive support and contact piece 16, for example by means of welding points 15 or by means of rents (not shown).
  • the latter has an angled tab 16a which runs approximately parallel to the angled end portion 11d of the V-leg 11a fastened to the support and contact piece 16.
  • the tab 16a of the support and contact piece 16 has a third opening 18, which with the opening 12 of the end part 11d of the V-leg 11a fastened to the support and contact piece 16 is congruent.
  • the opening 18 is formed by punching and angling a tongue 16b, which protrudes through the two openings 12 and 13 of the leaf spring piece 11 (see FIG. 1).
  • This tongue 16b is located at the edge of the opening 12 which is more distant from the fixed V-leg 11a and forms a contact surface for the electrical conductor 20 to be connected, as shown in FIG. 4.
  • the clamp 10 described is suitable e.g. as a connection terminal on an electrical device.
  • the leaf spring piece 11 of the clamp is expediently pretensioned in such a way that in the idle state according to FIG. 1, ie when no electrical conductor is connected, the lower edge of the opening 13 of the movable V-leg 11b is pressed against the tongue 16b with a pretensioning force.
  • This measure results in a sufficiently high contact pressure when connecting thin conductors and strands, the cross section of which is formed flat when pinched.
  • the bias of the leaf spring piece 11 also ensures that the connected The conductor 20 alone is sufficiently secured against being pulled out of the clamp 10 by means of the lower edge of the opening 13 of the movable V-leg 11b in FIG. 4.
  • a pair of terminals 10 can have a common contact piece 16.
  • the terminal 10 described has the advantage of being structurally simple and less susceptible to malfunction, of taking up relatively little space and of being able to be produced inexpensively. It is particularly suitable for connecting or connecting electrical signal and control lines.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Description

Die vorliegende Erfindung betrifft eine schraubenlose elektrische Klemme mit einem etwa V-förmig gebogenen Blattfederstück, dessen V-Schenkel gegeneinander abgewinkelte, einander überlappende Endpartien aufweisen, von denen jede mit einer ersten bzw. zweiten Durchbrechung zum Hindurchstecken mindestens eines anzuschliessenden elektrischen Leiters versehen ist, wobei in unbelastetem Zustand des Blattfederstückes die zwei Durchbrechungen in bezug aufeinander versetzte Lagen haben, aber miteinander zur Deckung bringbar sind durch elastisches Gegeneinanderdrängen der V-Schenkel, und mit einem elektrisch leitenden Trag- und Kontaktstück, an welchem einer der V-Schenkel des Blattfederstückes befestigt ist und das einen zur abgewinkelten Endpartie des befestigten Schenkels annähernd parallel verlaufenden Lappen mit einer dritten Durchbrechung aufweist, die mit der Durchbrechung der Endpartie des befestigten V-Schenkels deckungsgleich ist, wobei zwischen dem Lappen des Trag- und Kontaktstükkes und der dazu annähernd parallelen Endpartie des befestigten V-Schenkels ein freier Zwischenraum vorhanden ist, in welchen die abgewinkelte Endpartie des beweglichen andern V-Schenkels des Blattfederstückes mit Spiel eingreift.The present invention relates to a screwless electrical clamp with an approximately V-shaped leaf spring piece, the V-legs of which have mutually angled, overlapping end portions, each of which is provided with a first or second opening for pushing through at least one electrical conductor to be connected, wherein in the unloaded state of the leaf spring piece which have two openings in relation to each other, but can be made to coincide with each other by elastic pushing together of the V-legs, and with an electrically conductive support and contact piece to which one of the V-legs of the leaf spring piece is attached and which has an approximately parallel to the angled end portion of the attached leg extending tab with a third opening, which is congruent with the opening of the end portion of the attached V-leg, between the tab of the support and contact tstükkes and the approximately parallel end portion of the attached V-leg there is a free space in which the angled end portion of the movable other V-leg of the leaf spring piece engages with play.

Eine schraubenlose elektrische Klemme mit den vorstehend definierten Merkmalen ist aus der DE-B-1 105 937 bekannt. Da die mit Durchbrechungen versehenen Endpartien des V-förmigen Blattfederstückes, wie auch der am Trag- und Kontaktstück angebrachte, mit einer dritten Durchbrechung versehene Lappen aus dünnwandigen Blechen bestehen, entstehen im Betrieb unerwünschte Deformationen des einzuklemmenden Leiters. Zudem ist der Kontakt zwischen Leiter und Kontaktstück teilweise recht dürftig.A screwless electrical terminal with the features defined above is known from DE-B-1 105 937. Since the end portions of the V-shaped leaf spring piece provided with openings, as well as the tab provided on the support and contact piece and provided with a third opening, consist of thin-walled sheets undesirable deformations of the conductor to be clamped during operation. In addition, the contact between the conductor and the contact piece is sometimes very poor.

Aufgabe der Erfindung ist es, eine Klemme der genannten Art zu schaffen, die technisch einfach ist, verhältnismässig geringen Raum beansprucht und trotzdem eine relativ grosse Kontaktfläche zwischen Leiter und Kontaktstück bietet, unerwünschte Deformationen auch dünner Leiter verhindert und preisgünstig hergestellt werden kann.The object of the invention is to provide a clamp of the type mentioned, which is technically simple, takes up relatively little space and still offers a relatively large contact area between the conductor and contact piece, prevents undesirable deformations, even thin conductors, and can be produced inexpensively.

Die zur Lösung dieser Aufgabe gefundene Klemme weist die im Kennzeichen von Patentanspruch 1 definierten Merkmale auf. Im abhängigen Patentanspruch ist eine zweckmässige Weiterbildung der erfindungsgemässen Klemme definiert.The clamp found to solve this problem has the features defined in the characterizing part of claim 1. An expedient development of the clamp according to the invention is defined in the dependent patent claim.

Die Erfindung und die mit ihr erzielten Vorteile sind nachstehend rein beispielsweise unter Bezugnahme auf die beigefügte Zeichnung näher erläutert. Es zeigen:

  • Fig. 1 ein Ausführungsbeispiel der erfindungsgemässen Klemme im Schnitt nach der Linie I-I in Fig. 3;
  • Fig. 2 einen Querschnitt nach der Linie II-II in Fig. 1;
  • Fig. 3 eine Draufsicht zu Fig. 1;
  • Fig. 4 eine der Fig. 1 analoge Darstellung der gleichen Klemme mit einem angeschlossenen elektrischen Leiter.
The invention and the advantages achieved with it are explained in more detail below purely by way of example with reference to the accompanying drawing. Show it:
  • Figure 1 shows an embodiment of the clamp according to the invention in section along the line II in Fig. 3.
  • 2 shows a cross section along the line II-II in Fig. 1.
  • Fig. 3 is a plan view of Fig. 1;
  • Fig. 4 is a Fig. 1 analog representation of the same terminal with a connected electrical conductor.

Die in den Fig. 1 bis 4 dargestellte schraubenlose elektrische Klemme 10 weist ein im wesentlichen etwa V-förmig gebogenes Blattfederstück 11 mit einem ersten und einem zweiten V-Schenkel 11a bzw. 11b auf, die je geradlinig verlaufen und im V-Scheitel durch eine kreisbogenförmig verlaufende Scheitelpartie 11c miteinander verbunden sind. Von der Scheitelpartie 11c abgewandte Endpartien 11d und 11e der beiden V-Schenkel sind gegeneinander abgewinkelt und derat angeordnet und ausgebildet, dass sie sich überlappen. Die abgewinkelten Endpartien 11d und 11e sind je mit einer ersten bzw. zweiten rechteckförmigen Druchbrechung 12 bzw. 13 versehen. In entspanntem Zustand des Blattferderstückes 11 schliessen die V-Schenkel 11a und 11b zwischen sich einen Winkel im Bereich von 110° bis 140° ein, vorzugsweise von 130°, und die beiden Durchbrechungen 12 und 13 haben in bezug aufeinander versetzte Lagen, wie deutlich in Fig. 1 zu sehen ist. Durch Gegeneinanderdrängen der V-Schenkel 11a und 11b entgegen dem Einfluss der Biegeelastizität des Blattfederstückes 11 sind die Durchbrechungen 12 und 13 miteinander zur Deckung bringbar. Zweckmässig haben die abgewinkelten Endpartien 11d und 11e je mindestens zum Teil einen annähernd kreisbogenförmigen Verlauf um die Krümmungsachse 14 der Scheitelpartie 11c. Das Blattfederstück 11 besteht aus elektrisch leitendem Material, z.B. nichtrostendem Stahl oder Federbronze.The screwless electrical terminal 10 shown in FIGS. 1 to 4 has an essentially approximately V-shaped leaf spring piece 11 with a first and a second V-leg 11a or 11b, each of which extends in a straight line and in the V-apex through a circular arc extending apex 11c are interconnected. End parts 11d and 11e of the two V-legs facing away from the apex part 11c are angled towards each other and are arranged and designed such that they overlap. The angled end parts 11d and 11e are each provided with a first or second rectangular opening 12 or 13. In the relaxed state of the leaf end piece 11, the V-legs 11a and 11b enclose between them an angle in the range from 110 ° to 140 °, preferably from 130 °, and the two openings 12 and 13 have positions offset from one another, as clearly shown in Fig. 1 can be seen. By pushing the V-legs 11a and 11b against each other against the influence of the bending elasticity of the leaf spring piece 11, the openings 12 and 13 can be brought into register with one another. The angled end parts 11d and 11e expediently each have at least in part an approximately circular arc shape around the axis of curvature 14 of the apex part 11c. The leaf spring piece 11 is made of electrically conductive material, for example stainless steel or spring bronze.

Einer (11a) der V-Schenkel 11a und 11b ist z.B. mittels Schweisspunkten 15 oder durch (nicht dargestellte) Mieten an einem elektrisch leitenden Trag- und Kontaktstück 16 befestigt. Letzteres weist einen abgewinkelten Lappen 16a auf, der etwa parallel zur abgewinkelten Endpartie 11d des am Trag- und Kontaktstück 16 befestigten V-Schenkels 11a verläuft. Zwischen der genannten Endpartie 11d und dem Lappen 16a ist ein freier Zwischenraum 17 vorhanden, in welchen die abgewinkelte Endpartie 11e des andern V-Schenkels 11b eingreift. Der Lappen 16a des Trag- und Kontaktstückes 16 weist eine dritte Durchbrechung 18 auf, die mit der Durchbrechung 12 der Endpartie 11d des am Trag- und Kontaktstück 16 befestigten V-Schenkels 11a deckungsgleich ist. Die Durchbrechung 18 ist durch Ausstanzen und Abwinkeln einer Zunge 16b gebildet, welche durch die beiden Durchbrechungen 12 und 13 des Blattfederstückes 11 hindurchragt (siehe Fig. 1). Diese Zunge 16b befindet sich bei der vom befestigten V-Schenkel 11a entfernteren Randkante der Durchbrechung 12 und bildet eine Anlagefläche für den anzuschliessenden elektrischen Leiter 20, wie Fig. 4 zeigt.One (11a) of the V-legs 11a and 11b is fastened to an electrically conductive support and contact piece 16, for example by means of welding points 15 or by means of rents (not shown). The latter has an angled tab 16a which runs approximately parallel to the angled end portion 11d of the V-leg 11a fastened to the support and contact piece 16. There is a free space 17 between the end portion 11d and the tab 16a, in which the angled end portion 11e of the other V-leg 11b engages. The tab 16a of the support and contact piece 16 has a third opening 18, which with the opening 12 of the end part 11d of the V-leg 11a fastened to the support and contact piece 16 is congruent. The opening 18 is formed by punching and angling a tongue 16b, which protrudes through the two openings 12 and 13 of the leaf spring piece 11 (see FIG. 1). This tongue 16b is located at the edge of the opening 12 which is more distant from the fixed V-leg 11a and forms a contact surface for the electrical conductor 20 to be connected, as shown in FIG. 4.

Die Gebrauchs- und Wirkungsweise der beschriebenen Klemme ist wie folgt:
Um einen oder mehrere elektrische Leiter mit dem Trag-  und Kontaktstück 16 zu verbinden, wird zuerst auf das Blattfederstück 11 eine Kraft in Richtung des Pfeiles P in Fig. 1 ausgeübt, wodurch der V-Schenkel 11b gegen den am Trag- und Kontaktstück 16 befestigten und damit stationären V-Schenkel 11a gedrängt wird, bis die Durchbrechung 13 der abgewinkelten Endpartie 11e des beweglichen anderen V-Schenkels 11b eine mit den Durchbrechungen 12 und 18 der anderen abgewinkelten Endpartie 11d bzw. des Lappens 16a übereinstimmende Lage erreicht. Dann wird der anzuschliessende Leiter 20 (Fig. 4) in alle drei Durchbrechungen 18, 13 und 12 eingeführt, wonach man die gemäss dem Pfeil P (Fig. 1 ) ausgeübte Kraft wegnimmt. Unter dem Einfluss seiner eigenen Biegeelastizität versucht dann das Blattfederstück 11 in seinen entspannten Zustand zurückzukehren, wobei, wie Fig. 4 zeigt, der angeschlossene elektrische Leiter 20 unter dem Einfluss der Elastizität des unbelasteten Blattfederstückes 11 mittels der unteren Kante der Durchbrechung 13 des beweglichen V-Schenkels 11b an die Zunge 16b des Trag- und Kontaktstückes 16 angedrückt und damit festgeklemmt wird. Hierbei resultiert eine relativ grosse Kontaktfläche zwischen dem Leiter 20 und dem Trag- und Kontaktstück 16, was die Verwendung dieser Klemme 10 auch für höhere Stromstärken erlaubt. Man erkennt, dass nun der Leiter 20 festgehalten wird und gegen Herausziehen aus der Klemme gesichert ist. Der im Vergleich zu den abgewinkelten Endpartien 11d und 11e des Blattfederstückes 11 mehrfach stärkere Lappen 16a des Trag- und Kontaktstückes 16 verhindert wirksam eine allfällige Deformation der Endpartien 11d und 11e, wenn auf den Leiter 20 Kräfte im Sinne des Herausziehens aus der Klemme ausgeübt werden sollten.The use and mode of operation of the clamp described is as follows:
In order to connect one or more electrical conductors to the support and contact piece 16, a force is first exerted on the leaf spring piece 11 in the direction of the arrow P in FIG. 1, as a result of which the V-leg 11b is fastened against the one attached to the support and contact piece 16 and thus stationary V-leg 11a is pushed until the opening 13 of the angled end part 11e of the movable other V-leg 11b reaches a position which corresponds to the openings 12 and 18 of the other angled end part 11d or of the flap 16a. Then the conductor 20 to be connected (FIG. 4) is inserted into all three openings 18, 13 and 12, after which the force exerted according to the arrow P (FIG. 1) is removed. Under the influence of its own bending elasticity, the leaf spring piece 11 then tries to return to its relaxed state, whereby, as shown in FIG. 4, the connected electrical conductor 20 under the influence of the elasticity of the unloaded leaf spring piece 11 by means of the lower edge of the opening 13 of the movable V Leg 11b pressed against the tongue 16b of the support and contact piece 16 and thus clamped. This results in a relatively large contact area between the conductor 20 and the support and contact piece 16, which the Use of this terminal 10 also allowed for higher currents. It can be seen that the conductor 20 is now held in place and is secured against being pulled out of the terminal. The flap 16a of the support and contact piece 16, which is several times stronger than the angled end parts 11d and 11e of the leaf spring piece 11, effectively prevents any deformation of the end parts 11d and 11e if forces should be exerted on the conductor 20 in the sense of being pulled out of the clamp .

Auf die beschriebene Weise lassen sich auch mehrere elektrische Leiter kleineren Durchmessers mit der Klemme verbinden und mit dem Trag- und Kontaktstück 16 elektrisch kontaktieren.In the manner described, several electrical conductors of smaller diameter can also be connected to the terminal and electrically contacted with the support and contact piece 16.

Zum Lösen des Leiters 20 (oder mehrerer angeschlossener Leiter) braucht man lediglich wieder eine Kraft gemäss dem Pfeil P in Fig. 1 auf das Blattfederstück 11 auszuüben, wobei der Klemmdruck auf den oder die Leiter nachlässt und dann dem Herausziehen des Leiters 20 oder der Leiter nichts mehr im Wege steht.To release the conductor 20 (or several connected conductors), one only needs to exert a force again on the leaf spring piece 11 according to the arrow P in FIG. 1, the clamping pressure on the conductor or conductors releasing and then pulling out the conductor 20 or the conductor nothing stands in the way.

Die beschriebene Klemme 10 eignet sich z.B. als Anschlussklemme an einem elektrischen Gerät.The clamp 10 described is suitable e.g. as a connection terminal on an electrical device.

Zweckmässig ist das Blattfederstück 11 der Klemme derart vorgespannt, dass im Ruhezustand gemäss Fig. 1, d.h. wenn noch kein elektrischer Leiter angeschlossen ist, die untere Randkante der Durchbrechung 13 des beweglichen V-Schenkels 11b mit einer Vorspannkraft an die Zunge 16b angedrückt wird. Durch diese Massnahme ergibt sich ein ausreichend hoher Kontaktdruck beim Anschliessen dünner Leiter und von Litzen, deren Querschnitt beim Einklemmen flach geformt wird. Durch die Vorspannung des Blattfederstückes 11 wird auch erreicht, dass der angeschlossene Leiter 20 allein mittels der in Fig. 4 unteren Randkante der Durchbrechung 13 des beweglichen V-Schenkels 11b gegen Herausziehen aus der Klemme 10 genügend gesichert ist.The leaf spring piece 11 of the clamp is expediently pretensioned in such a way that in the idle state according to FIG. 1, ie when no electrical conductor is connected, the lower edge of the opening 13 of the movable V-leg 11b is pressed against the tongue 16b with a pretensioning force. This measure results in a sufficiently high contact pressure when connecting thin conductors and strands, the cross section of which is formed flat when pinched. The bias of the leaf spring piece 11 also ensures that the connected The conductor 20 alone is sufficiently secured against being pulled out of the clamp 10 by means of the lower edge of the opening 13 of the movable V-leg 11b in FIG. 4.

Selbstverständlich kann ein Paar Klemmen 10 ein gemeinsames Kontaktstück 16 aufweisen.Of course, a pair of terminals 10 can have a common contact piece 16.

Die beschriebene Klemme 10 hat neben den genannten Eigenschaften den Vorteil, konstruktiv einfach und wenig störungsanfällig zu sein, verhältnismässig wenig Raum zu beanspruchen und preisgünstig hergestellt werden zu können. Sie eignet sich besonders zum Anschliessen oder Verbinden von elektrischen Signal- und Steuerleitungen.In addition to the properties mentioned, the terminal 10 described has the advantage of being structurally simple and less susceptible to malfunction, of taking up relatively little space and of being able to be produced inexpensively. It is particularly suitable for connecting or connecting electrical signal and control lines.

Claims (2)

  1. Screwless electrical terminal, with an approximately V-shaped bent leaf spring member (11), the V-shaped limb (11a, 11b) of which have mutually overlapping end parts (11d, 11e) angled towards each other, each of which has a first and a second opening (12, 13) respectively provided for inserting through them at least one electrical conductor (20) to be connected to the terminal, wherein in the unloaded condition of the leaf spring member (11) the two openings (12, 13) have a mutually offset position relative to each other but may be brought into alignment by resiliently pressing the V-shaped limbs (11a, 11b) towards each other, and with an electrically conducting carrier and contact member (16) to which one of the V-shaped limbs (11a, 11b) of the leaf spring member (11) is secured and which has a flange (16a) extending approximately parallel with the angled end portion (11d) of the secured V-shaped limb (11a) and being provided with a third opening (18) which is registrable with the opening (12) of the end part (11d) of the secured V-shaped limb (11a), wherein there is a free intermediate space (17a) between the flange (16a) of the carrier and contact member (16) and the end part (11d) of the fixed V-shaped limb (11a) approximately parallel thereto, the angled end part (11e) of the displaceable other V-shaped limb (11b) of the leaf spring member (11) projecting with a clearance into the intermediate space, characterised in that the flange (16a) of the carrier and contact member (16) with a third opening (18) is provided with an angled tongue (16b) which projects through the first and second openings (12, 13) of the two angled end parts (11d, 11e) of the leaf spring member (11) and forms a bearing surface for the electrical conductor (20) to be connected, and in that the leaf spring member (11) is resiliently pre-stressed in such a manner that under the influence of its resilience one edge of the second opening (13) in the end part of (11e) of the displaceable V-shaped limb (11b) of the leaf spring member (11) is pressed against the said bearing surface of the tongue (16b) and is consequently in a position to press the electrical conductor (20) projecting through the three openings (12, 13, 18) at the bearing surface of the tongue (16b).
  2. A terminal according to claim 1 in which a second, similarly constructed leaf spring member is secured with one of its V-shaped limbs to the carrier and contact member, characterised in that the contact member has a second flange with an opening and an angled tongue which projects through the two openings in the angled end parts of the second leaf spring member and has a bearing surface for an electrical conductor to be coupled to it, and in that the second leaf spring member is so resiliently pre-stressed that under the influence of its resilience an edge of the opening in the angled end part of the displaceable V-shaped limb of the second leaf spring member is pressed against the said bearing surface of the tongue and is thereby in a position to press the electrical conductor projecting through the opening of the second flange and the two openings of the second leaf spring member at the bearing surface of the tongue.
EP86112909A 1985-10-09 1986-09-18 Screwless electrical terminal Expired - Lifetime EP0218133B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4348/85A CH667553A5 (en) 1985-10-09 1985-10-09 SCREWLESS ELECTRICAL TERMINAL.
CH4348/85 1985-10-09

Publications (3)

Publication Number Publication Date
EP0218133A2 EP0218133A2 (en) 1987-04-15
EP0218133A3 EP0218133A3 (en) 1988-09-21
EP0218133B1 true EP0218133B1 (en) 1992-04-22

Family

ID=4274423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112909A Expired - Lifetime EP0218133B1 (en) 1985-10-09 1986-09-18 Screwless electrical terminal

Country Status (5)

Country Link
US (1) US4708417A (en)
EP (1) EP0218133B1 (en)
JP (1) JPS62115677A (en)
CH (1) CH667553A5 (en)
DE (1) DE3684980D1 (en)

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GB2228838B (en) * 1989-02-22 1993-11-17 Mk Electric Ltd Lampholders
NL8901467A (en) * 1989-06-08 1991-01-02 Du Pont Nederland CONNECTOR.
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Also Published As

Publication number Publication date
JPH0449227B2 (en) 1992-08-10
EP0218133A2 (en) 1987-04-15
DE3684980D1 (en) 1992-05-27
CH667553A5 (en) 1988-10-14
US4708417A (en) 1987-11-24
JPS62115677A (en) 1987-05-27
EP0218133A3 (en) 1988-09-21

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