EP0335093A2 - Screwless electrical terminal - Google Patents

Screwless electrical terminal Download PDF

Info

Publication number
EP0335093A2
EP0335093A2 EP89102641A EP89102641A EP0335093A2 EP 0335093 A2 EP0335093 A2 EP 0335093A2 EP 89102641 A EP89102641 A EP 89102641A EP 89102641 A EP89102641 A EP 89102641A EP 0335093 A2 EP0335093 A2 EP 0335093A2
Authority
EP
European Patent Office
Prior art keywords
electrical conductor
leaf spring
housing
actuating member
receiving space
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
EP89102641A
Other languages
German (de)
French (fr)
Other versions
EP0335093A3 (en
EP0335093B1 (en
Inventor
Paul Lüthy
Wilfried A. Christen
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.)
Feller AG
Original Assignee
Feller 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 Feller AG filed Critical Feller AG
Publication of EP0335093A2 publication Critical patent/EP0335093A2/en
Publication of EP0335093A3 publication Critical patent/EP0335093A3/en
Application granted granted Critical
Publication of EP0335093B1 publication Critical patent/EP0335093B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—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
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/483—Pivoting arrangements, e.g. lever pushing on the spring

Definitions

  • the invention relates to a screwless electrical connection terminal with a receiving space in a housing for inserting an electrical conductor to be connected, an electrically conductive contact piece forming a fixed boundary of the receiving space, a leaf spring for pressing the electrical conductor against the contact piece within the receiving space and an actuating member for pushing back the Leaf spring from the pressing position, which actuator can be moved manually transversely to the direction of insertion of the conductor and has two legs extending in its direction of movement, which are intended for cooperation with the leaf spring.
  • the electrical connecting terminal according to the invention has the advantage that the electrical conductor is correctly connected from the position of the actuation organ is recognizable.
  • the electrical conductor is guided laterally securely through the legs which are moved along with the actuating member and which extend far beyond the electrical conductor.
  • there is a lower loosening force to be exerted against the inclined leaf spring leg which, particularly when using the electrical clamp in an installation apparatus, must not be too great.
  • a receiving space 3 is formed for an electrical conductor 4 to be connected, which is only shown in FIG. 2 and which extends through a bore formed in the housing part 1 5 is inserted into the receiving space 3.
  • This receiving space 3 is delimited on one side by an electrically conductive contact piece 6, which is fixedly arranged in the housing 1, 2.
  • a leaf spring 7 which extends into the receiving space 3 for the electrical conductor 4 is supported.
  • This V-shaped, isosceles steel spring 7 is intended to press with the clamping edge 8 on one leg of the electrical conductor 4 inserted into the receiving space 3 under the influence of the elasticity of the steel spring against the electrically conductive contact piece 6.
  • the clamping edge 8 secures the electrical conductor 4 against being pulled out of the terminal. If the electrical conductor 4 is solid or stable enough, it only needs to be inserted against the action of the leaf spring 7. If the electrical conductor 4 is a strand of fine wire, the actuating member 10 arranged above the electrical contact piece 6 in a recess 9 in the housing 1, 2 must be pressed down.
  • This actuator 10 shown in FIGS. 3 and 4 as a single part is solid in the upper part and then has two mutually parallel legs 11 and 12, which are of identical shape.
  • the two legs 11 and 12 extend on both sides of the electrical contact piece 6 located between them into the receiving space 3 of the electrical conductor 4 to be inserted.
  • the two legs 11 and 12, which are of identical design with respect to the outer shape, are stepped on one side so that an internal step shoulder 13 is present at this step, against which the leaf spring 7 with the clamping edge 8 abuts when no electrical conductor 4 is inserted.
  • Each leg is at a short distance from this stepped shoulder 13 11, 12 formed somewhat projecting towards the leaf spring at 16, which causes the actuating member 10 to be in driving engagement with the leaf spring 7 via the two legs 11 and 12 when the leaf spring end having the clamping edge 8 has a pivoting movement when the electrical conductor 4 is inserted executes, wherein the two legs 11 and 12 carry out the same downward movement and at the same time in the insertion direction of the electrical conductor, as a result of which the actuating member 10 assumes an inclined position at the end, as can be seen from FIG. 2. This position of the actuator 10 with respect to the housing 1, 2 visually recognizes the correct connection of the electrical conductor.
  • this inclination of the actuating member 10 which extends through the channel-shaped recess 9 in the housing 1, 2 into the receiving space 3 for the electrical conductor 4 to be inserted, it has one on the side opposite the step of insertion of the electrical conductor and opposite the stepped shoulder 13 Indentation 14, which extends over a large part of this side of the actuating member, which in other words is tapered in a wedge shape with a gradual reduction in cross-section to the narrowest point, while a widening is again present in the lowest leg section.
  • the housing part 2 has at the end of the channel-shaped recess 9 a projection 15, over which the actuating member can be pushed over during assembly, but which then prevents the actuating member from falling out.
  • the actuator 10 is depressed. In any case, the electrical conductor is laterally well guided through the legs 11 and 12 of the actuating member 10 which extend far into the receiving space 3 for the conductor. Due to the inclined position of the actuating member when the electrical conductor is inserted, the point of application for the release force to be taken out to remove the electrical conductor is also more favorable than is the case with known connecting terminals, which in turn has the consequence that, despite the higher clamping force achieved, as for the Contact parts used here without galvanic coating is required, the release force does not have to be increased in comparison with other known terminals of this type. This is an important point, especially when using the connection terminal for installation equipment, because the loosening force here must not be too high.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Cable Accessories (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Discharge Heating (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Insulated Conductors (AREA)

Abstract

In a housing (1, 2), for example of an electrical installation apparatus, there is a retaining space (3) for the insertion of an electrical conductor (4) which is to be connected and which is inserted through a hole (5) in the housing. A boundary of the retaining space (3) is formed by an electrical contact piece (6) against which the electrical conductor (4) is pressed by means of a V-shaped leaf spring (7) having identical limbs. An operating device (10) is used for forcing back the leaf spring (7), which operating device extends on both sides of the contact piece (6) into the retaining space (3) for the electrical conductor (4) with two parallel limbs (11, 12) which are constructed on one end. The two limbs (11, 12) are constructed offset in the form of a step on the end, so that in the case of both limbs there is an inwardly turning stepped shoulder (13) against which the clamping edge (8) of the leaf spring (7) rests. On insertion of the electrical conductor (4), the leaf spring end executes a curved pivoting movement, the limbs (11, 12) of the operating device (10), which are in driven engagement with the clamping edge (8) of the leaf spring (7), executing the same movement in the insertion direction of the electrical conductor and inwards, so that the operating device (10) then assumes an oblique position in order in this way to indicate in a visually identifiable manner the correctly completed connection of the electrical conductor (4). <IMAGE>

Description

Die Erfindung betrifft eine schraubenlose elektrische Anschlussklemme mit einem Aufnahmeraum in einem Gehäuse zum Einführen eines anzuschliessenden elektrischen Leiters, einem eine feste Begrenzung des Aufnahmeraumes bildenden elektrisch leitenden Kontaktstück, einer Blattfeder zum Andrücken des elek­trischen Leiters gegen das Kontaktstück innerhalb des Aufnahmeraumes und einem Betätigungsorgan zum Zurückdrängen der Blattfeder aus der Andrückstellung, welches Betätigungsorgan quer zur Einführrichtung des Leiters manuell bewegbar ist und zwei in seiner Bewegungsrichtung verlaufende Schenkel aufweist, die zum Zusammenarbeiten mit der Blattfeder bestimmt sind.The invention relates to a screwless electrical connection terminal with a receiving space in a housing for inserting an electrical conductor to be connected, an electrically conductive contact piece forming a fixed boundary of the receiving space, a leaf spring for pressing the electrical conductor against the contact piece within the receiving space and an actuating member for pushing back the Leaf spring from the pressing position, which actuator can be moved manually transversely to the direction of insertion of the conductor and has two legs extending in its direction of movement, which are intended for cooperation with the leaf spring.

Das Problem bei bekannten elektrischen Anschluss­klemmen dieser Art besteht darin, dass beim Anschliessen eines flexiblen elektrischen Leiters, der als Litze aus verdrillten dünnen Einzeldrähten gebildet ist, dieser Leiter zwischen dem Kontaktstück und der Blatt­feder flachgedrückt wird und darum eine seitliche Führung für die Litze vorhanden sein muss, wobei zusätz­lich zu berücksichtigen ist, dass die Klemmstelle je nach dem vorhandenen Durchmesser des elektrischen Leiters an einer anderen Stelle liegt, eine Führung des Leiters aber in jedem dieser möglichen Fälle gewähr­leistet sein soll.The problem with known electrical connection terminals of this type is that when connecting a flexible electrical conductor, which is formed as a strand from twisted thin individual wires, this conductor is flattened between the contact piece and the leaf spring and therefore a lateral guide for the strand must be available , with additional consideration being given to the fact that the clamping point is at a different location depending on the diameter of the electrical conductor, but that the conductor should be guided in each of these possible cases.

Bei einer bekannten in der DE-PS 28 26 978 beschriebenen elektrischen Anschlussklemme dieser Art ist dies insbesondere bei einem elektrischen Leiter mit grossem Durchmesser nicht ausreichend der Fall. Wenn ein flexibler elektrischer Leiter seitlich auswei­chen kann, führt dies zu einer unzulässig grossen Reduktion der Kontaktkraft und ausserdem wird auch die zum Herausziehen des Leiters aus der Klemme aufzuwen­de Auszugskraft unzulässig niedrig.In a known electrical connection terminal of this type described in DE-PS 28 26 978, this is particularly the case with an electrical conductor with a large diameter is not sufficient. If a flexible electrical conductor can move sideways, this leads to an impermissibly large reduction in the contact force and, moreover, the pull-out force to be pulled out of the terminal also becomes impermissibly low.

In der praktischen Anwendung solcher elektrischer Klemmen hat sich gezeigt, dass es von besonderem Vorteil ist, wenn sich bei einer Vielzahl von in einem Instal­lationsapparat vorhandenen elektrischen Klemmen dieser Art das Festsitzen der Leiter leicht kontrollieren lässt, wobei eine visuelle Kontrolle am günstigsten ist, d.h. dass man an der Anschlussklemme selbst visuell erkennen kann, ob der elektrische Leiter richtig festge­klemmt ist.The practical application of such electrical terminals has shown that it is particularly advantageous if the tightness of the conductors can be easily checked in the case of a large number of electrical terminals of this type present in an installation apparatus, visual inspection being the most favorable, i.e. that you can visually see on the connection terminal itself whether the electrical conductor is properly clamped.

Es ist daher die Aufgabe der Erfindung, eine schraubenlose elektrische Anschlussklemme der eingangs genannten Art so auszubilden, dass für elektrische Leiter mit unterschiedlich grossem Durchmesser beim Einführen und Klemmen eine sichere Führung gewährleistet ist und dass man das Festsitzen des Leiters an der Stellung des Betätigungsorgans für die Blattfeder erkennen kann.It is therefore the object of the invention to design a screwless electrical connection terminal of the type mentioned in such a way that reliable guidance is ensured for electrical conductors with different diameters during insertion and clamping and that the conductor is stuck at the position of the actuating member for the Leaf spring can recognize.

Die Aufgabe wird bei der elektrischen Anschluss­klemme der gattungsgemässen Art mit den im kennzeichnen­den Teil des Anspruchs 1 angegebenen Merkmalen gelöst. Eine zweckmässige Ausführungsform ergibt sich aus den abhängigen Ansprüchen.The object is achieved in the electrical connection terminal of the generic type with the features specified in the characterizing part of claim 1. An expedient embodiment results from the dependent claims.

Die erfindungsgemässe elektrische Anschlussklemme besitzt den Vorteil, dass der korrekt erfolgte Anschluss des elektrischen Leiters aus der Stellung des Betätigungs­ organs erkennbar ist. Der elektrische Leiter wird seitlich sicher durch die mit dem Betätigungsorgan mitbewegten und den elektrischen Leiter weit übergreifen­de Schenkel geführt. Bei der nach dem Einführen des elektrischen Leiters von dem Betätigungsorgan eingenomme­nen Schräglage ergibt sich eine gegen den schräg stehen­den Blattfederschenkel auszuübende geringere Lösekraft, die insbesondere bei Anwendung der elektrischen Klemme in einem Installationsapparat nicht zu gross sein darf.The electrical connecting terminal according to the invention has the advantage that the electrical conductor is correctly connected from the position of the actuation organ is recognizable. The electrical conductor is guided laterally securely through the legs which are moved along with the actuating member and which extend far beyond the electrical conductor. In the case of the inclined position taken up by the actuating member after the electrical conductor has been inserted, there is a lower loosening force to be exerted against the inclined leaf spring leg, which, particularly when using the electrical clamp in an installation apparatus, must not be too great.

Ein Ausführungsbeispiel des Erfindungsgegenstan­des wird nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 die elektrische Anschlussklemme in einem abgebrochen und im Schnitt dargestellten Gehäuse, ohne elektrischen Leiter;
  • Fig. 2 eine zu Fig. 1 analoge Darstellung mit durch die Anschlussklemme festgehaltenem elektrischen Leiter;
  • Fig. 3 und 4 das Betätigungsorgan im Schnitt und in Seitenansicht.
An embodiment of the subject matter of the invention is explained in more detail below with reference to the drawings. Show it:
  • Figure 1 shows the electrical terminal in a broken and sectioned housing, without an electrical conductor.
  • FIG. 2 shows an illustration analogous to FIG. 1 with the electrical conductor held by the connecting terminal;
  • 3 and 4, the actuator in section and in side view.

In einem aus Isoliermaterial bestehenden, abgebrochen dargestellten Gehäuse 1,2, das beispielsweise einen Schalter oder eine Steckdose bilden kann, ist ein Aufnahmeraum 3 für einen nur in Fig. 2 dargestellten anzuschliessenden elektrischen Leiter 4 ausgebildet, der durch eine in dem Gehäuseteil 1 ausgebildete Bohrung 5 in den Aufnahmeraum 3 eingeführt wird. Dieser Aufnahme­raum 3 ist an einer Seite durch ein elektrisch leitendes Kontaktstück 6 begrenzt, das im Gehäuse 1,2 fest angeord­net ist. Auf der dem Kontaktstück gegenüberliegenden Seite ist eine in den Aufnahmeraum 3 für den elektrischen Leiter 4 sich hinein erstreckende Blattfeder 7 abgestützt gehalten. Diese V-förmige, gleichschenklige Stahlfeder 7 ist dazu bestimmt, mit der Klemmkante 8 an ihrem einen Schenkel den in den Aufnahmeraum 3 eingeführten elektrischen Leiter 4 unter dem Einfluss der Elastizität der Stahlfeder gegen das elektrisch leitende Kontaktstück 6 anzudrücken. Die Klemmkante 8 bewirkt eine Sicherung des elektrischen Leiters 4 gegen eine Herausziehen aus der Klemme. Wenn der elektrische Leiter 4 massiv oder stabil genug ist, braucht er nur gegen die Wirkung der Blattfeder 7 eingeführt zu werden. Handelt es sich bei dem elektrischen Leiter 4 um eine Litze aus feinem Drähten, ist das oberhalb des elektrischen Kontaktstückes 6 in einer Ausnehmung 9 im Gehäuse 1,2 angeordnete Betätigungsorgan 10 nieder zu drücken. Dieses in Fig. 3 und 4 als Einzelteil dargestellte Betätigungsorgan 10 ist im oberen Teil massiv und besitzt daran anschliessend zwei zueiander parallele Schenkel 11 und 12, die formidentisch ausgebildet sind. Die beiden Schenkel 11 und 12 erstrecken sich zu beiden Seiten des zwischen ihnen befindlichen elektri­schen Kontaktstücks 6 in den Aufnahmeraum 3 des einzufüh­renden elektrischen Leiter 4 hinein. Die beiden bezüglich der Aussenform identisch ausgebildeten Schenkel 11 und 12 sind an einer Seite stufenförmig abgesetzt ausgebildet, so dass bei dieser Stufe eine inwendige Stufenschulter 13 vorhanden ist, gegen welche die Blattfeder 7 mit der Klemmkante 8 ansteht, wenn kein elektrischer Leiter 4 eingeführt ist. Im geringen Abstand von dieser Stufenschulter 13 ist jeder Schenkel 11,12 bei 16 zur Blattfeder hin etwas vorspringend ausgebildet, wodurch bewirkt wird, dass das Betätigungs­organ 10 über die beiden Schenkel 11 und 12 mit der Blattfeder 7 in Mitnahmeeingriff steht, wenn das die Klemmkante 8 aufweisende Blattfederende beim Einführen des elektrischen Leiters 4 eine Schwenkbewegung ausführt, wobei die beiden Schenkel 11 und 12 die gleiche Bewegung nach unten und gleichzeitig in der Einführrichtung des elektrischen Leiters mitausführen, wodurch das Betätigungsorgan 10 am Ende eine Schräglage einnimmt, wie aus Fig. 2 hervorgeht. Diese Stellung des Betätigungs­organs 10 bezüglich des Gehäuses 1,2 zeigt den korrekt erfolgten Anschluss des elektrischen Leiters visuell erkennbar an.In a housing 1, 2 shown broken off, which can form, for example, a switch or a socket, a receiving space 3 is formed for an electrical conductor 4 to be connected, which is only shown in FIG. 2 and which extends through a bore formed in the housing part 1 5 is inserted into the receiving space 3. This receiving space 3 is delimited on one side by an electrically conductive contact piece 6, which is fixedly arranged in the housing 1, 2. On the opposite of the contact piece On the side, a leaf spring 7 which extends into the receiving space 3 for the electrical conductor 4 is supported. This V-shaped, isosceles steel spring 7 is intended to press with the clamping edge 8 on one leg of the electrical conductor 4 inserted into the receiving space 3 under the influence of the elasticity of the steel spring against the electrically conductive contact piece 6. The clamping edge 8 secures the electrical conductor 4 against being pulled out of the terminal. If the electrical conductor 4 is solid or stable enough, it only needs to be inserted against the action of the leaf spring 7. If the electrical conductor 4 is a strand of fine wire, the actuating member 10 arranged above the electrical contact piece 6 in a recess 9 in the housing 1, 2 must be pressed down. This actuator 10 shown in FIGS. 3 and 4 as a single part is solid in the upper part and then has two mutually parallel legs 11 and 12, which are of identical shape. The two legs 11 and 12 extend on both sides of the electrical contact piece 6 located between them into the receiving space 3 of the electrical conductor 4 to be inserted. The two legs 11 and 12, which are of identical design with respect to the outer shape, are stepped on one side so that an internal step shoulder 13 is present at this step, against which the leaf spring 7 with the clamping edge 8 abuts when no electrical conductor 4 is inserted. Each leg is at a short distance from this stepped shoulder 13 11, 12 formed somewhat projecting towards the leaf spring at 16, which causes the actuating member 10 to be in driving engagement with the leaf spring 7 via the two legs 11 and 12 when the leaf spring end having the clamping edge 8 has a pivoting movement when the electrical conductor 4 is inserted executes, wherein the two legs 11 and 12 carry out the same downward movement and at the same time in the insertion direction of the electrical conductor, as a result of which the actuating member 10 assumes an inclined position at the end, as can be seen from FIG. 2. This position of the actuator 10 with respect to the housing 1, 2 visually recognizes the correct connection of the electrical conductor.

Damit diese Schrägstellung des durch die kanalför­mige Ausnehmung 9 im Gehäuse 1,2 sich bis in den Aufnahme­raum 3 für den einzuführenden elektrischen Leiter 4 hineinerstreckenden Betätigungsorgans 10 möglich ist, weist dieses auf der bezüglich der Einführrichtung des elektrischen Leiters rückwärtigen und der Stufenschul­ter 13 gegenüberliegenden Seite eine Einbuchtung 14 auf, die sich über einen grossen Teil dieser Seite des Betätigungsorgans erstreckt, welches mit anderen Worten mit einer allmählichen Querschnittsreduktion bis zur engsten Stelle keilförmig verjüngt ausgebildet ist, während im untersten Schenkelabschnitt wieder eine Verbreiterung vorhanden ist. Ferner besitzt der Gehäuseteil 2 am Ende der kanalförmigen Ausnehmung 9 einen Vorsprung 15, über den sich das Betätigungsorgan bei der Montage mit Druck herüberschieben lässt, der aber dann verhindert, dass das Betätigungsorgan heraus­fallen kann.So that this inclination of the actuating member 10, which extends through the channel-shaped recess 9 in the housing 1, 2 into the receiving space 3 for the electrical conductor 4 to be inserted, it has one on the side opposite the step of insertion of the electrical conductor and opposite the stepped shoulder 13 Indentation 14, which extends over a large part of this side of the actuating member, which in other words is tapered in a wedge shape with a gradual reduction in cross-section to the narrowest point, while a widening is again present in the lowest leg section. Furthermore, the housing part 2 has at the end of the channel-shaped recess 9 a projection 15, over which the actuating member can be pushed over during assembly, but which then prevents the actuating member from falling out.

Wenn der elektrische Leiter aus einer feinadrigen Litze besteht, wird das Betätigungsorgan 10 nieder­gedrückt. Auf jeden Fall ist der elektrische Leiter durch die weit in den Aufnahmeraum 3 für den Leiter hineinreichenden Schenkel 11 und 12 des Betätigungsorgans 10 seitlich gut geführt. Durch die Schräglage des Betätigungsorgans bei eingeführtem elektrischen Leiter wird auch der Angriffspunkt für die zum Herausnehmen des elektrischen Leiters aufzuwendende Lösekraft günsti­ger, als dies bei bekannten Anschlussklemmen der Fall ist, was wiederum zur Folge hat, dass trotz der erreich­ten höheren Klemmkraft, wie sie für die hier verwendeten Kontaktteile ohne galvanischen Ueberzug benötigt wird, die Lösekraft im Vergleich mit anderen bekannten Klemmen dieser Art nicht erhöht werden muss. Dies ist besonders bei Verwendung der Anschlussklemme für Installationsappa­rate ein wichtiger Punkt, weil die Lösekraft hier nicht zu hoch sein darf.If the electrical conductor consists of a fine-stranded strand, the actuator 10 is depressed. In any case, the electrical conductor is laterally well guided through the legs 11 and 12 of the actuating member 10 which extend far into the receiving space 3 for the conductor. Due to the inclined position of the actuating member when the electrical conductor is inserted, the point of application for the release force to be taken out to remove the electrical conductor is also more favorable than is the case with known connecting terminals, which in turn has the consequence that, despite the higher clamping force achieved, as for the Contact parts used here without galvanic coating is required, the release force does not have to be increased in comparison with other known terminals of this type. This is an important point, especially when using the connection terminal for installation equipment, because the loosening force here must not be too high.

Claims (3)

1. Schraubenlose elektrische Anschlussklemme mit einem Aufnahmeraum in einem Gehäuse zum Einführen eines anzuschliessenden elektrischen Leiters, einem eine feste Begrenzung des Aufnahmeraumes bildenden elektrisch leitenden Kontaktstück, einer Blattfeder zum Andrücken des eingeführten Leiters gegen das Kontakt­stück innerhalb des Aufnahmeraums und einem Betätigungs­organ zum Zurückdrängen der Blattfeder aus der Andrück­stellung, welches Betätigungsorgan quer zur Einführrich­tung des Leiters manuell bewegbar ist und zwei in seiner Bewegungsrichtung verlaufende Schenkel aufweist, die zum Zusammenwirken mit der Blattfeder bestimmt sind, dadurch gekennzeichnet, dass eine V-förmig ausgebil­dete gleichschenklige Blattfeder (7) mit ihrer Klemmkante (8) bei beiden am Ende stufenförmig abgesetzt ausgebil­deten Schenkeln (11,12) des Betätigungsorgans (10) gegen die inwendige Stufenschulter (13) ansteht und mit den Schenkelenden für die durch das Einführen des elektrischen Leiters (4) bewirkte Schwenkbewegung des die Klemmkante (8) aufweisenden Blattfederschenkels (7) in Mitnahmeeingriff steht, um durch die aufgrund der Bewegung der Schenkelenden in Einführrichtung und einwärts veränderte Stellung des Betätigungsorgans (10) bezüglich des Gehäuses (1,2) den korrekt erfolgten Anschluss des elektrischen Leiters (4) visuell erkennbar anzuzeigen.1. Screwless electrical connection terminal with a receiving space in a housing for inserting an electrical conductor to be connected, an electrically conductive contact piece forming a fixed boundary of the receiving space, a leaf spring for pressing the inserted conductor against the contact piece within the receiving space and an actuating member for pushing back the leaf spring the pressing position, which actuating member is manually movable transversely to the direction of insertion of the conductor and has two legs running in its direction of movement, which are intended to interact with the leaf spring, characterized in that a V-shaped isosceles leaf spring (7) with its clamping edge (8 ) at both legs (11, 12) of the actuating member (10), which are stepped at the end, bears against the internal step shoulder (13) and with the leg ends for the swiveling caused by the insertion of the electrical conductor (4) Movement of the clamping edge (8) having leaf spring leg (7) is in entrainment engagement by the correct connection of the electrical conductor due to the movement of the leg ends in the insertion direction and inwardly changed position of the actuating member (10) with respect to the housing (1,2) (4) visually recognizable. 2. Anschlussklemme nach Anspruch 1, dadurch gekennzeichnet, dass das durch eine kanalförmige Aus­nehmung (9) im Gehäuse (1,2) in den Aufnahmeraum (3) sich hineinerstreckende Betätigungsorgan (10) zwecks Schrägstellung in der Gehäuseausnehmung (9) bei eingesetz­tem elektrischen Leiter (4) auf der bezüglich der Einführrichtung rückwärtigen und der Stufenschulter (13) gegenüber liegenden Seite eine über einen Teil der Länge des Betätigungsorgans (10) sich erstreckende und durch allmähliche Querschnittsreduktion gebildete Einbuchtung (14) aufweist und die das Betätigungsorgan (10) aufnehmende Ausnehmung (9) im Gehäuse (1,2) am Uebergang zum an die Ausnehmung anschliessenden Aufnahme­raum (3) zum Einführen eines elektrischen Leiters (4) einen der Einbuchtung (14) gegenüberstehenden Vorsprung (15) aufweist, der das Herausfallen des Betätigungsorgans (10) aus dem Gehäuse (1,2) verhindert.2. Terminal according to claim 1, characterized in that through a channel-shaped recess (9) in the housing (1, 2) into the receiving space (3) extending actuator (10) for inclination in the housing recess (9) when the electrical conductor is inserted (4) on the rear side with respect to the insertion direction and opposite the step shoulder (13) has an indentation (14) which extends over part of the length of the actuating member (10) and is formed by a gradual reduction in cross-section, and the recess accommodating the actuating member (10) (9) in the housing (1, 2) at the transition to the receiving space (3) adjoining the recess for introducing an electrical conductor (4) has a projection (15) opposite the indentation (14) which prevents the actuating member (10) from falling out prevented from the housing (1,2). 3. Anschlussklemme nach Anspruch 1, dadurch gekennzeichnet, dass alle Kontaktteile (6,7) ungalvani­siert sind.3. Terminal according to claim 1, characterized in that all contact parts (6,7) are non-galvanized.
EP89102641A 1988-03-28 1989-02-16 Screwless electrical terminal Expired - Lifetime EP0335093B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1160/88 1988-03-28
CH1160/88A CH674282A5 (en) 1988-03-28 1988-03-28

Publications (3)

Publication Number Publication Date
EP0335093A2 true EP0335093A2 (en) 1989-10-04
EP0335093A3 EP0335093A3 (en) 1990-07-25
EP0335093B1 EP0335093B1 (en) 1996-04-03

Family

ID=4203881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102641A Expired - Lifetime EP0335093B1 (en) 1988-03-28 1989-02-16 Screwless electrical terminal

Country Status (5)

Country Link
EP (1) EP0335093B1 (en)
AT (1) ATE136404T1 (en)
CH (1) CH674282A5 (en)
DE (1) DE58909639D1 (en)
ES (1) ES2086306T3 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4344132A1 (en) * 1993-12-23 1995-07-06 Broekelmann Jaeger & Busse PCB terminal
DE19504092A1 (en) * 1994-02-25 1995-08-31 Wieland Elektrische Industrie Spring clamp for electric lead
AT403635B (en) * 1991-03-22 1998-04-27 Legrand Oesterreich Gmbh ELECTRICAL INSTALLATION DEVICE
AT404773B (en) * 1990-09-06 1999-02-25 Bauscher Metalluk PLUG-IN CONTACT TERMINAL FOR A CIRCUIT BOARD
US5915991A (en) * 1996-07-25 1999-06-29 Claber S.P.A. Lever terminal for electrical connectors
US6146187A (en) * 1998-11-25 2000-11-14 Supplie & Co. Import/Export, Inc. Screwless terminal block
US6338646B1 (en) * 2001-06-15 2002-01-15 Hon Hai Precision Ind. Co., Ltd. ZIF socket assembly having a visual indicator
US6921276B2 (en) 2002-04-01 2005-07-26 Tyco Electronics Corporation Position indicator for electrical connector
DE102004062850B3 (en) * 2004-12-27 2006-06-14 Siemens Ag Terminal device especially protective circuit-breaker, has tilt-lever carried by bearing points along longitudinal axis
EP1914839A2 (en) 2006-10-21 2008-04-23 ABB PATENT GmbH Installation switching device
US8535084B2 (en) 2008-08-27 2013-09-17 Wago Verwaltungsgesellschaft Mbh Terminal component

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2159247B1 (en) * 1999-08-13 2002-04-01 Tecnica De Conexiones S A TERMINAL WITH INTEGRATED LAND CONTACT FOR LUMINAIRES.
CN101533976B (en) * 2008-03-14 2011-03-02 晋煜企业股份有限公司 Circuit connector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1975278U (en) * 1967-07-15 1967-12-21 Berker Geb CONNECTING TERMINAL FOR ELECTRIC CONDUCTORS FACED IN THE BASE OF AN INSTALLATION DEVICE.
DE2826978A1 (en) * 1977-08-10 1979-02-22 Feller Ag SCREWLESS ELECTRICAL TERMINAL
GB1593321A (en) * 1978-01-14 1981-07-15 Crabtree Electrical Ind Ltd Electrical fittings
DE8132616U1 (en) * 1981-11-07 1982-08-05 WAGO Verwaltungsgesellschaft mbH, 4950 Minden Screwless connection and / or connecting clamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1975278U (en) * 1967-07-15 1967-12-21 Berker Geb CONNECTING TERMINAL FOR ELECTRIC CONDUCTORS FACED IN THE BASE OF AN INSTALLATION DEVICE.
DE2826978A1 (en) * 1977-08-10 1979-02-22 Feller Ag SCREWLESS ELECTRICAL TERMINAL
GB1593321A (en) * 1978-01-14 1981-07-15 Crabtree Electrical Ind Ltd Electrical fittings
DE8132616U1 (en) * 1981-11-07 1982-08-05 WAGO Verwaltungsgesellschaft mbH, 4950 Minden Screwless connection and / or connecting clamp

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404773B (en) * 1990-09-06 1999-02-25 Bauscher Metalluk PLUG-IN CONTACT TERMINAL FOR A CIRCUIT BOARD
AT403635B (en) * 1991-03-22 1998-04-27 Legrand Oesterreich Gmbh ELECTRICAL INSTALLATION DEVICE
DE4344132A1 (en) * 1993-12-23 1995-07-06 Broekelmann Jaeger & Busse PCB terminal
DE19504092B4 (en) * 1994-02-25 2006-04-06 Wieland Electric Gmbh Spring clip for an electrical conductor
DE19504092A1 (en) * 1994-02-25 1995-08-31 Wieland Elektrische Industrie Spring clamp for electric lead
US5915991A (en) * 1996-07-25 1999-06-29 Claber S.P.A. Lever terminal for electrical connectors
US6146187A (en) * 1998-11-25 2000-11-14 Supplie & Co. Import/Export, Inc. Screwless terminal block
US6250950B1 (en) * 1998-11-25 2001-06-26 Supplie & Co. Import/Export, Inc. Screwless terminal block
US6338646B1 (en) * 2001-06-15 2002-01-15 Hon Hai Precision Ind. Co., Ltd. ZIF socket assembly having a visual indicator
US6921276B2 (en) 2002-04-01 2005-07-26 Tyco Electronics Corporation Position indicator for electrical connector
DE102004062850B3 (en) * 2004-12-27 2006-06-14 Siemens Ag Terminal device especially protective circuit-breaker, has tilt-lever carried by bearing points along longitudinal axis
EP1914839A2 (en) 2006-10-21 2008-04-23 ABB PATENT GmbH Installation switching device
EP1914839A3 (en) * 2006-10-21 2008-07-16 ABB PATENT GmbH Installation switching device
US8535084B2 (en) 2008-08-27 2013-09-17 Wago Verwaltungsgesellschaft Mbh Terminal component

Also Published As

Publication number Publication date
DE58909639D1 (en) 1996-05-09
ES2086306T3 (en) 1996-07-01
EP0335093A3 (en) 1990-07-25
ATE136404T1 (en) 1996-04-15
EP0335093B1 (en) 1996-04-03
CH674282A5 (en) 1990-05-15

Similar Documents

Publication Publication Date Title
DE2553558C3 (en) Electrical plug connection
DE1917503C3 (en) Screwless connector or connector
DE2826978A1 (en) SCREWLESS ELECTRICAL TERMINAL
EP0335093B1 (en) Screwless electrical terminal
EP0954887A1 (en) Connecting device for at least one non-bared conductor
DE4231244A1 (en) Series electrical clamp terminal - has separator between clamp arm and counter bearing arm of spring steel clamp element
DE69434005T2 (en) Apparatus for improving connectors and method for improving the same
DE202016100798U1 (en) Spring terminal
DE102004045026B3 (en) Electrical connecting clamp for mobile and fixed functions, with clamping spring and metal part in insulating housing with inserting aperture for conductor to be inserted
EP1217692A2 (en) Connecting terminal for electrical conductors
DE1765470A1 (en) Electrical connector
DE102008008651B4 (en) Electrical terminal
DE2349614C2 (en) Screwless terminal or connector for electrical conductors
EP0104330B1 (en) Spring pressure terminal for electrical conductors
DE3911459A1 (en) Screwless connecting terminal and/or connection terminal
DE3030523A1 (en) Connector with single cable entry and multiple outlets - with incoming connection made through spring clamp including extension which bears against flange
CH667163A5 (en) Spring clamp testing device - has outer rigid test pins and intermediate spring contact pins cooperating with respective clamp contacts
DE2760179C2 (en) Screwless connection and / or connecting clamp
DE102021109581A1 (en) Contact spring arrangement with release element
DE102020000349A1 (en) Connecting clamp
DE1590086B2 (en) SPRING CLAMP FOR FASTENING TWO WIRED WIRES IN ELECTRICAL INSTALLATION DEVICES
DE2759848C1 (en) Screwless connection terminal
DE2730680C2 (en) Screwless clamp for electrical conductors
EP0141086B1 (en) Clamping connection member for low-voltage systems, especially for interrupters
DE2622323B2 (en) Contact device for connecting an electrical line end

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE ES FR IT

17P Request for examination filed

Effective date: 19900702

17Q First examination report despatched

Effective date: 19920903

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR IT

REF Corresponds to:

Ref document number: 136404

Country of ref document: AT

Date of ref document: 19960415

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: ING. A. GIAMBROCONO & C. S.R.L.

REF Corresponds to:

Ref document number: 58909639

Country of ref document: DE

Date of ref document: 19960509

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2086306

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20020208

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20020225

Year of fee payment: 14

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

Ref country code: AT

Payment date: 20020227

Year of fee payment: 14

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

Ref country code: DE

Payment date: 20020424

Year of fee payment: 14

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

Ref country code: AT

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

Effective date: 20030216

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

Ref country code: ES

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

Effective date: 20030217

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

Ref country code: DE

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

Effective date: 20030902

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

Ref country code: FR

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

Effective date: 20031031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030217

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

Ref country code: IT

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

Effective date: 20050216