EP0104330B1 - Spring pressure terminal for electrical conductors - Google Patents

Spring pressure terminal for electrical conductors Download PDF

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Publication number
EP0104330B1
EP0104330B1 EP83106380A EP83106380A EP0104330B1 EP 0104330 B1 EP0104330 B1 EP 0104330B1 EP 83106380 A EP83106380 A EP 83106380A EP 83106380 A EP83106380 A EP 83106380A EP 0104330 B1 EP0104330 B1 EP 0104330B1
Authority
EP
European Patent Office
Prior art keywords
spring
clamp body
clamping
terminal according
control
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
Application number
EP83106380A
Other languages
German (de)
French (fr)
Other versions
EP0104330A1 (en
Inventor
Hans Wilhelm Wider
Manfred Wilmes
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.)
Ca Weidmueller & Co GmbH
Weidmueller Interface GmbH and Co KG
Original Assignee
Ca Weidmueller & Co GmbH
Weidmueller Interface GmbH and Co KG
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 Ca Weidmueller & Co GmbH, Weidmueller Interface GmbH and Co KG filed Critical Ca Weidmueller & Co GmbH
Publication of EP0104330A1 publication Critical patent/EP0104330A1/en
Application granted granted Critical
Publication of EP0104330B1 publication Critical patent/EP0104330B1/en
Expired 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
    • H01R4/28—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
    • 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
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool

Definitions

  • the invention relates to a spring pressure connection for electrical conductors, with a clamp body made of electrically conductive material and a movable, actuatable spring defining the conductor on the clamp body.
  • a spring pressure clamp has also become known (DE-A-25 03 091), in which the spring is arranged such that it can rotate relative to the clamping cage in order to be able to insert a conductor without contact pressure. After inserting the conductor, the spring is only rotated in its contact position and held in this position.
  • the assembly of such a spring and the actuation of such a spring involve a particularly large space requirement.
  • a connector in which a basket-like spring cage with numerous struts is provided in the socket part to which an electrical conductor is connected in the usual way in the receiving space for the plug pin.
  • the plug pin When the plug pin is inserted, it hits the bottom of the spring cage and takes it into the receiving space, whereby the spring struts of the cage are pressed together in the direction of the plug pin by a control curve section on the socket part and in the end insertion position this provides an additional hold against falling out the connector.
  • This is the principle of the so-called "zero force plug”.
  • the end insertion position of the pin and thus the compressed position of the spring cage must also be locked.
  • the present invention has for its object to provide a spring-pressure connection of the generic type, which has a particularly small space requirement both in terms of its accommodation as well as its operation in terms of releasing the connection.
  • a clamp body 1 in Form of a clamp housing is provided, in which a spring 2 designed as an angle piece is guided parallel to itself displaceably.
  • a counter bearing surface 3 is provided for the spring 2, on which the spring 2 can be supported in the clamping position.
  • two control pieces 5 in the form of lateral projections are provided on the spring 2, while recesses 6 are provided in the lateral walls of the housing-like clamping body 1, into which the lateral projections 3 protrude.
  • the recesses 6 are designed in their shape once for a simple assembly of the spring 2 and have on the other control cams 7, which are so in the path of the projections 5 when the spring 2 is moved parallel to itself in the conductor pull-out direction, that with this displacement the control curves 7 the clamping end of the spring 2 is pushed away from the clamping surface 3 of the clamping body 1 and the clamping can thereby be released.
  • the release process takes place in the illustrated embodiment by moving the spring 2 a little out of the clamping body 1.
  • a separate latching is provided for the safe maintenance of the clamping points.
  • notches 8 which are open at the bottom are provided in the initial region of the lateral walls of the gill body 1 which is kept open at the bottom, while lateral latching projections 9 are provided on the spring 2 in this region and engage in the notches 8 in the clamping position of the spring 2, as from Figure 1 can be seen.
  • the spring 2 Before loosening the connection, the spring 2 must be pressed down so far at its front end that the lateral latching projections 9 come out of the notches 8.
  • the spring 2 When the spring 2 is subsequently pulled out in the sense of the connection solution, the spring 2 fits with the surfaces of the lateral projections 9 on the lower free edges of the side walls of the housing-like clamping cage 1 and with its lateral control projections 5 on the oblique control curves 7.
  • a recess 6a is provided in the clamping body la in a side wall, which has an inclined control curve 7a, which with a control piece in the form of a cooperates laterally on the spring 2a projecting control tab 5a, with its rounded end.
  • the clamping end of the spring 2a interacts again with the clamping surface 3a.
  • the spring is supported in the clamping position on the counter pressure surface 4a of the clamping body la.
  • the spring 2a is designed as a bracket piece which is traced back to itself via an angle elbow lying on the outside.
  • connection is loosened in that it is again acted on from the open front side, namely according to the arrow pressed onto the winding arc of the spring 2a and this is pushed a little in the conductor insertion direction into the clamping body la, as a result of which the rounded end of the control tab 5a on the sloping control surface 7a runs downward and pushes the clamping end of the spring 2a away from the clamping surface 3a.
  • the winding arc 2a can additionally be guided to the surrounding insulating material housing 10 which receives the clamping body la.
  • the control cam is formed in the clamping body Ib in that a tab 7b is stamped into at least one side wall of the clamping body Ib and pressed inward, which has a predetermined inclined position, while on the respective side to the again as curved bracket piece formed spring 2b at a corresponding point, a recess 5b is incorporated into which the obliquely located tab 7b engages, so that when the connector 2 is pushed into the clamping body 1b by releasing the spring, the affected recess wall of the recess 5b on the runs along inclined tab 7b and thereby the clamping end of the spring 2b is pressed off the clamping surface 3b again.
  • the spring 2b is again supported on the counter bearing surface 4b of the clamping body 1b.
  • a clamping body 1c is provided, which is left open on its one lateral boundary wall in the lower region adjacent to the counter bearing surface 4c.
  • an obliquely running guide surface 7c is provided in the front area of the open lower edge of this side surface wall of the clamping body 1c.
  • the spring 2c is again designed as a curved piece of bracket and is wider than the clamping body Ic in the area of its leg interacting with the counter bearing surface 4c and in the area of its winding arc.
  • a narrower area which forms the clamping end of the spring, extends into the clamping body 1c up to its clamping surface 3c.
  • the release of the spring pressure connection is again done in that the spring 2 is pushed a little bit in the direction of insertion into the clamping body 1 c by acting on the winding arc on the front, whereby the stepped leading edge 5c as a control piece on the control surface 7c slides down and again Clamping end of the spring is pushed away from the clamping surface 3c of the clamping body 1c c.
  • the displacement of the spring in the empty position of the connection can become problematic, in particular if the connection is designed for a relatively large clamping force, that is to say the clamping end of the spring also presses relatively strongly onto the clamping surface of the clamping body even when the connection is empty , so that there can be a hooking that could block the displacement of the spring in the empty position.
  • a very small recess 11 is machined into the clamping surface 3c at the clamping point, which only needs to be large enough to prevent the adjacent edge of the clamping end of the spring 2c from getting caught.
  • the spring is formed in two parts. it consists of a first section 2d with a turn bend lying on the front, the other end of this section 2d interacting as a rounded clamping end with the clamping surface 3d of the clamping body 1d.
  • a control tab 5d which projects laterally and is rounded off in the region which cooperates with the control surface 7d in the recess 6d of the clamping body 1d.
  • the further section 2d 'of the spring is supported with its one end in the winding arc of section 2d and with its other end on the counter bearing surface 4d of the clamping body Id, and with the acute region of the angle below the clamping end of section 2d.
  • the section 2d ' can be designed to generate a large clamping force which, on the other hand, enables the section 2d to be designed with a favorable surface especially in the area of the clamping ends, that is to say in the area of the introduction of contact force.
  • the exemplary embodiments described above are based on a concept according to which the clamping body is at least essentially cage-shaped or housing-shaped and accommodates at least the essential part of the spring.
  • a spring pressure connection with the principle of spring displacement parallel to itself and with simultaneous controlled movement of the clamping end of the spring from the clamping surface of the clamping body in the sense of the solution of the connection can also be constructed according to a completely different construction principle.
  • the clamping body 1 e is designed as an essentially rod-shaped fitting, which partially penetrates the spring 2e and on which the spring 2e is again guided in parallel with itself in the direction of insertion or removal.
  • Such a clamping body 1e can, for example, be firmly clamped at one end in a receptacle, and thus there is a particular freedom of movement with regard to the requirements on the housing side for fixing the clamping body 1e.
  • the clamping body need not be a clamping cage provided on a current conducting part of a clamping connector.
  • the spring 2e is a molded part designed with a flat winding arc which has in its central region a slot-shaped recess 12 which extends from the lower leg over almost the entire winding arc and through which the spring is connected 2e interacting areas of the clamping body 1e can occur.
  • the clamping body 1e has in its front area an approximately U-shaped cross section with flag pieces 13 located at the front end and running obliquely upwards from front to back.
  • the clamping tab 14 is left in an inward extension of the angled end of the winding arc, which points to the bottom of the U-shaped end of the clamping body 1e.
  • This tab is the clamping end of the spring and the base of the U-shaped section is the clamping surface 3e of the clamping body 1e.
  • the slot-shaped recess 12 of the spring 2e has on both sides of the tab 14 laterally offset extensions 15 through which the two tabs 13 of the clamping body 1e can pass.
  • the end edges 5e of these lateral extensions 15 lie against the front oblique control surfaces 7e of the flags 13 of the clamping body 1. If the upper angled end of the spring 2e is now acted on from the front (see arrow in FIG. 7), it moves parallel to itself on the clamping body 1e, the clamping end of the tab 14 lying below being lifted off the clamping surface 3e, since the end edges 5e of the lateral enlarged recesses 15 are led up on the front edges of the flags 13 as control surfaces 7e.
  • a special protection against unintentional removal of the conductor is also implemented in a simple manner.
  • the arrangement is such that the rear offset edges 16 of the side enlarged recesses 15 lie on the rear oblique edges 17 of the two flags 13. Therefore, if a pull is exerted on the conductor in the pull-off direction, there is a tendency for the edges 16 to move downward at the bevels 17 and thus to press the spring with the clamping tab 14 even more firmly onto the inserted conductor.
  • the electrical conductor to be connected is a solid or finely stranded lead wire and the clamping body consists of electrically conductive material.
  • the clamping end of the spring is expediently designed such that good contact is achieved less by a high spring force than by a geometrically good contact with the conductor Ensure that the clamp end of the spring on the conductor does not obstruct or even block the displacement movement.
  • Figure 10 three different design options for the clamping ends of the springs concerned are shown schematically.
  • the rigid end region of the springs is dissolved by longitudinal and / or transverse slots 21, 22, 23. In all cases, this resolution ensures that the clamping end of the spring can better nestle against the conductor.
  • the clamping end of the spring can even be rounded, as indicated, for example, in the exemplary embodiment according to FIG. 6.
  • Another advantage of this embodiment is that the spring thus slotted touches the conductor at several points, so that there are also several points which can oppose unintentional pulling out. It is also advantageous in this embodiment that movements of the conductor cannot have a direct effect on the sharp end edge of the spring.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Die Erfindung betrifft einen Federdruckanschluß für elektrische Leiter, mit einem Klemmkörper aus elektrisch leitendem Material und einer dazu beweglichen, betätigbaren den Leiter am Klemmenkörper festlegenden Feder.The invention relates to a spring pressure connection for electrical conductors, with a clamp body made of electrically conductive material and a movable, actuatable spring defining the conductor on the clamp body.

Es ist von Federdruckklemmen für elektrische Leiter her bekannt, die elektrische Leiter klemmenden Federn im wesentlichen ortsfest an einem Klemmkörper in Form eines an das Stromführungsteil angeformten Klemmkäfigs anzuordnen. Zum Lösen der getätigten Klemmverbindung sind dabei entweder gesonderte Betätigungselemente im Klemmengehäuse gelagert (DE-A- 27 30 680), oder aber es sind im Klemmengehäuse bis zur Klemmstelle weisende Aussparungen für die Einführung eines Betätigungswerkzeuges, beispielsweise eines Schraubendrehers vorgesehen (DE-A-27 24 354). In beiden Fällen wird für die Betätigungselemente ein Raum beansprucht, der in diesen Anwendungsfällen derartiger Federdruckanschlüsse nicht zur Verfügung steht, wenn beispielsweise an mehrpolige, mehrreihige Anschlußleisten und dergleichen gedacht wird.It is known from spring-loaded terminals for electrical conductors to arrange the electrical conductor-clamping springs essentially stationary on a clamping body in the form of a clamping cage molded onto the current-carrying part. To release the clamp connection, either separate actuation elements are stored in the terminal housing (DE-A-27 30 680), or there are recesses in the terminal housing that point up to the terminal point for the introduction of an actuating tool, for example a screwdriver (DE-A-27 24 354). In both cases, a space is required for the actuating elements, which is not available in these applications of such spring pressure connections, for example if multi-pole, multi-row terminal strips and the like are considered.

Es ist auch eine Federdruckklemme bekannt geworden (DE-A- 25 03 091), bei der die Feder gegenüber dem Klemmkäfig drehbeweglich angeordnet ist, um einen Leiter kontaktdruckfrei einbringen zu können. Die Feder wird dabei nach Einbringen des Leiters erst in ihrer Kontaktlage gedreht und in dieser verrastet gehalten. Die Montage einer derartigen Feder und die Betätigung einer derartigen Feder bringen dabei einen besonders großen Raumbedarf mit sich.A spring pressure clamp has also become known (DE-A-25 03 091), in which the spring is arranged such that it can rotate relative to the clamping cage in order to be able to insert a conductor without contact pressure. After inserting the conductor, the spring is only rotated in its contact position and held in this position. The assembly of such a spring and the actuation of such a spring involve a particularly large space requirement.

Aus der US-A-33 50 681 ist ein Steckverbinder bekannt, bei dem in dem Buchsenteil, an das ein elektrischer Leiter in üblicher Weise angeschlossen ist, im Aufnahmeraum für den Steckstift ein korbartiger Federkäfig mit zahlreichen Federbeinen vorgesehen ist. Beim Einstecken des Steckstiftes trifft dieser auf den Boden des Federkäfigs und nimmt diesen mit in den Aufnahmeraum hinein, wobei hierbei durch einen Steuerkurvenabschnitt am Buchsenteil die Federbeine des Käfigs in Richtung zum Steckstift hin zusammengedrückt werden und diesem in der Endeinsteckstellung einen zusätzlichen Halt gegen ein Herausfallen aus der Steckverbindung geben. Es handelt sich hierbei um das Prinzip des sogenannten "Nullkraftsteckers". Die Endeinstecklage des Steckstiftes und damit die zusammengedrückte Lage des Federkäfigs muß zusätzlich verriegelt werden.From US-A-33 50 681 a connector is known in which a basket-like spring cage with numerous struts is provided in the socket part to which an electrical conductor is connected in the usual way in the receiving space for the plug pin. When the plug pin is inserted, it hits the bottom of the spring cage and takes it into the receiving space, whereby the spring struts of the cage are pressed together in the direction of the plug pin by a control curve section on the socket part and in the end insertion position this provides an additional hold against falling out the connector. This is the principle of the so-called "zero force plug". The end insertion position of the pin and thus the compressed position of the spring cage must also be locked.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Feder-druckanschluß der gattungsgemäßen Art zu schaffen, der einen besonders geringen Raumbedarf sowohl bezüglich seiner Unterbringung wie bezüglich seiner Betätigung im Sinne eines Lösens des Anschlusses hat.The present invention has for its object to provide a spring-pressure connection of the generic type, which has a particularly small space requirement both in terms of its accommodation as well as its operation in terms of releasing the connection.

Die erfindungsgemäße Lösung ergibt sich aus dem kennzeichnenden Teil des PatentanspruchesThe solution according to the invention results from the characterizing part of the claim

Durch die Verschiebbarkeit der Feder parallel zu sich selbst in Leitereinsteck- oder auszugrichtung ergibt sich, bei ja immer vorhandener Frontbetätigungsmöglichkeit, d. h. einer Betätigung von der Leitereinsteckseite her, ein sehr geringer Raumbedarf für die Feder selbst und insbesondere nur ein minimaler Raumbedarf für ein Betätigungswerkzeug, zur Überführung der Feder in die Offenstellung, der normalerweise nur sehr geringfügig über den Raumbedarf hinausgeht, der sowieso für die Einsteckung des Leiters erforderlich ist. Im Hinblick auf die aufzubringenden Öffnungskräfte können das Steuerstück und die Steuerkurve klein gehalten werden, so daß sich von daher der Raumbedarf des Anschlusses nur unwesentlich erhöht.The fact that the spring can be moved parallel to itself in the direction of insertion or alignment results in the fact that the front actuation option is always available. H. an actuation from the conductor insertion side, a very small space requirement for the spring itself and in particular only a minimal space requirement for an actuating tool, for moving the spring into the open position, which normally only extends very slightly beyond the space requirement, which is anyway for the insertion of the conductor is required. With regard to the opening forces to be applied, the control piece and the control cam can be kept small, so that the space requirement of the connection therefore increases only insignificantly.

Weitere bevorzugte Ausgestaltungen eines derartigen Federdruckanschlusses sind in den Unteransprüchen gekennzeichnet. Hervorzuheben sind dabei Ausgestaltungen, die es ermöglichen, daß sich bei Auftreten eines Leiterzuges zur Sicherung gegen einen unbeabsichtigten Leiterabzug die Klemmwirkung noch erhöht, oder die eine zusätzlich zu betätigende Verrastung ermöglichen; die Möglichkeit einer speziellen mehrteiligen Federausgestaltung zur Verbesserung der Krafteinleitung in den Leiter, sowie Maß-nahmen, die ein einwandfreies Verschieben der Feder in ihrer Ruhestellung bei Einführen eines feindrähtigen Leiters gewährleisten. Die Unteransprüche betreffen ferner die verschiedenen Ausgestaltungsmöglichkeiten bezüglich der Klemmkörper.Further preferred configurations of such a spring pressure connection are characterized in the subclaims. Emphasis should be given to configurations which make it possible that the clamping effect increases further when a conductor run occurs to secure against an unintentional conductor pull-off, or which make it possible to additionally lock it; the possibility of a special multi-part spring design to improve the introduction of force into the conductor, as well as measures that ensure that the spring moves correctly in its rest position when a fine-stranded conductor is inserted. The subclaims also relate to the various design options with regard to the clamping bodies.

Bevorzugte Ausführungsbeispiele derartiger Federdruckanschlüsse werden nachstehend unter Bezugnahme auf die beigefügte Zeichnung näher beschrieben.Preferred embodiments of such spring pressure connections are described below with reference to the accompanying drawings.

Es zeigen

  • Figur 1 einen Federdruckanschluß gemäß der Erfindung in vereinfachter Seitenansicht,
  • Figur 2 den Anschluß nach Figur 1 in vereinfachter Rückansicht,
  • Figur 3 einen weiteren derartigen Federdruckanschluß in vereinfachter seitenansicht,
  • Figur 4 einen weiteren derartigen Anschluß in vereinfachter Seitenansicht,
  • Figur 5 ein weiteres Ausführungsbeispiel eines derartigen Anschlusses in vereinfachter Seitenansicht,
  • Figur 6 ein weiteres Ausführungsbeispiel eines derartigen Anschlusses in vereinfachter Seitenansicht,
  • Figur 7 einen weiteren Federdruckanschluß gemäß der Erfindung in Seitenansicht,
  • Figur 8 den Anschluß nach Figur 7 in Draufsicht,
  • Figur 9 Teildraufsichten auf verschiedene Ausgestaltungen der Klemmenden von Federn für derartige Federdruckanschlüsse.
Show it
  • FIG. 1 shows a spring pressure connection according to the invention in a simplified side view,
  • FIG. 2 shows the connection according to FIG. 1 in a simplified rear view,
  • FIG. 3 shows another such spring pressure connection in a simplified side view,
  • FIG. 4 shows another such connection in a simplified side view,
  • FIG. 5 shows a further exemplary embodiment of such a connection in a simplified side view,
  • FIG. 6 shows a further exemplary embodiment of such a connection in a simplified side view,
  • 7 shows a further spring pressure connection according to the invention in side view,
  • FIG. 8 shows the connection according to FIG. 7 in plan view,
  • Figure 9 partial top views of different configurations of the clamping ends of springs for such spring pressure connections.

Bei dem in Figur 1 dargestellten Ausführungsbeispiel ist ein Klemmkörper 1 in Form eines Klemmgehäuses vorgesehen, in dem eine als Winkelstück ausgebildete Feder 2 parallel zu sich selbst verschieblich geführt ist. Gegenüberliegend der Klemmfläche 3 des gehäuseartigen Klemmkörpers 4 ist eine Gegenlagerfläche 3 für die Feder 2 vorgesehen, an der sich die Feder 2 in der Klemmstellung abstützen kann.In the embodiment shown in Figure 1, a clamp body 1 in Form of a clamp housing is provided, in which a spring 2 designed as an angle piece is guided parallel to itself displaceably. Opposite the clamping surface 3 of the housing-like clamping body 4, a counter bearing surface 3 is provided for the spring 2, on which the spring 2 can be supported in the clamping position.

An der Feder 2 sind bei diesem Ausführungsbeispiel zwei Steuerstücke 5 in Form seitlicher Vorsprünge vorgesehen, während in den seitlichen Wandungen des gehäuseartigen Klemmkörpers 1 Aussparungen 6 vorgesehen sind, in die die seitlichen Vorsprünge 3 vorstehen. Die Aussparungen 6 sind in ihrer Formgebung einmal auf eine einfache Montage der Feder 2 ausgelegt und haben zum anderen Steuerkurven 7, die so in der Wegbahn der Vorsprünge 5 bei einer Verschiebung der Feder 2 parallel zu sich selbst in Leiterauszugrichtung liegen, daß bei dieser Verschiebung über die Steuerkurven 7 das Klemmende der Feder 2 von der Klemmfläche 3 des Klemmkörpers 1 fortgedrückt wird und dadurch die Klemmung gelöst werden kann. Der Lösevorgang erfolgt im dargestellten Ausführungsbeispiel durch ein Verschieben der Feder 2 ein wenig aus dem Klemmkörper 1 heraus. Im dargestellten Ausführungsbeispiel ist eine gesonderte Verrastung zur sicheren Aufrechterhaltung der Klemmstellen vorgesehen. Hierzu sind in dem nach unten offengehaltenen Anfangsbereich der seitlichen Wandungen des Kiemmkörpers 1 nach unten offene Ausklinkungen 8 vorgesehen, während an der Feder 2 in diesem Bereich seitliche Rastvorsprünge 9 vorgesehen sind, die in der Klemmstellung der Feder 2 in die Ausklinkungen 8 eingreifen, wie aus Figur 1 ersichtlich. Vor dem Lösen des Anschlusses muß die Feder 2 an ihrem frontseitigen Ende so weit nach unten gedrückt werden, daß die seitlichen Rastvorsprünge 9 aus den Ausklinkungen 8 freikommen. Bei dem nachfolgenden Herausziehen der Feder 2 im Sinne der Anschlußlösung fügt sich die Feder 2 mit den Oberflächen der seitlichen Vorsprünge 9 an den unteren freien Kanten der seitlichen Wände des gehäuseartigen Klemmkäfigs 1 und mit ihren seitlichen Steuervorsprüngen 5 an den schrägen Steuerkurven 7.In this embodiment, two control pieces 5 in the form of lateral projections are provided on the spring 2, while recesses 6 are provided in the lateral walls of the housing-like clamping body 1, into which the lateral projections 3 protrude. The recesses 6 are designed in their shape once for a simple assembly of the spring 2 and have on the other control cams 7, which are so in the path of the projections 5 when the spring 2 is moved parallel to itself in the conductor pull-out direction, that with this displacement the control curves 7 the clamping end of the spring 2 is pushed away from the clamping surface 3 of the clamping body 1 and the clamping can thereby be released. The release process takes place in the illustrated embodiment by moving the spring 2 a little out of the clamping body 1. In the illustrated embodiment, a separate latching is provided for the safe maintenance of the clamping points. For this purpose, notches 8 which are open at the bottom are provided in the initial region of the lateral walls of the gill body 1 which is kept open at the bottom, while lateral latching projections 9 are provided on the spring 2 in this region and engage in the notches 8 in the clamping position of the spring 2, as from Figure 1 can be seen. Before loosening the connection, the spring 2 must be pressed down so far at its front end that the lateral latching projections 9 come out of the notches 8. When the spring 2 is subsequently pulled out in the sense of the connection solution, the spring 2 fits with the surfaces of the lateral projections 9 on the lower free edges of the side walls of the housing-like clamping cage 1 and with its lateral control projections 5 on the oblique control curves 7.

Bei dem in Figur 3 dargestellten Ausführungsbeispield, das einen grundsätzlich ähnlichen Aufbau wie das Ausführungsbeispiel nach Figur 1 hat, ist in dem Klemmkörper la in einer seitlichen Wandung eine Aussparung 6a vorgesehen, die eine schräg liegende Steuerkurve 7a aufweist, die mit einem Steuerstück in Form einer seitlich an der Feder 2a vorstehenden Steuerlasche 5a zusammenwirkt, und zwar mit derem abgerundeten Ende. Das Klemmende der Feder 2a wirkt wieder mit der Klemmfläche 3a zusammen. Die Feder stützt sich in der Klemmstellung an der Gegendruckfläche 4a des Klemmkörpers la ab. Die Feder 2a ist in diesem Ausführungsbeispiel als auf sich selbst über einen außenseitig liegenden Winkelbogen rückgeführtes Bügelstück ausgebildet. Das Lösen des Anschlusses geschieht dadurch, daß wiederum von der offenen Frontseite her eingewirkt wird, und zwar gemäß Pfeil auf den Windungsbogen der Feder 2a gedrückt und diese ein wenig in Leitereinsteckrichtung in den Klemmkörper la hineingeschoben wird, wodurch das gerundete Ende der Steuerlasche 5a an der schrägen Steuerfläche 7a nach unten läuft und das Klemmende der Feder 2a von der Klemmfläche 3a fortdrückt. Bei dieser Verschiebebewegung kann der Windungsbogen 2a zusätzlich an den den Klemmkörper la aufnehmenden umgebenden lsolierstoffgehäuse 10 geführt sein.In the embodiment shown in Figure 3, which has a fundamentally similar structure to the embodiment of Figure 1, a recess 6a is provided in the clamping body la in a side wall, which has an inclined control curve 7a, which with a control piece in the form of a cooperates laterally on the spring 2a projecting control tab 5a, with its rounded end. The clamping end of the spring 2a interacts again with the clamping surface 3a. The spring is supported in the clamping position on the counter pressure surface 4a of the clamping body la. In this exemplary embodiment, the spring 2a is designed as a bracket piece which is traced back to itself via an angle elbow lying on the outside. The connection is loosened in that it is again acted on from the open front side, namely according to the arrow pressed onto the winding arc of the spring 2a and this is pushed a little in the conductor insertion direction into the clamping body la, as a result of which the rounded end of the control tab 5a on the sloping control surface 7a runs downward and pushes the clamping end of the spring 2a away from the clamping surface 3a. With this displacement movement, the winding arc 2a can additionally be guided to the surrounding insulating material housing 10 which receives the clamping body la.

Bei dem in Figur 4 dargestellten Ausführungsbeispiel ist in dem Klemmkörper Ib die Steuerkurve dadurch gebildet, daß in mindestens einer seitenwand des Klemmkörpers Ib eine Lasche 7b eingestanzt und nach innen gedrückt ist, die eine vorbestimmte schräglage hat, während an der jeweiligen Seite an die wieder als gebogenes Bügelstück ausgebildete Feder 2b an entsprechender Stelle eine Aussparung 5b eingearbeitet ist, in die die schräg liegende Lasche 7b eingreift, so daß beim durch Hineindrücken der Feder 2b in Leitereinsteckrichtung in den Klemmkörper Ib erfolgenden Lösen des Anschlusses die eine betroffene Aussparungswand der Aussparung 5b an der schrägen Lasche 7b entlangläuft und dadurch wieder das Klemmende der Feder 2b von der Klemmfläche 3b abgedrückt wird. Die Feder 2b stützt sich wieder an der Gegenlagerfläche 4b des Klemmkörpers 1 b ab.In the embodiment shown in Figure 4, the control cam is formed in the clamping body Ib in that a tab 7b is stamped into at least one side wall of the clamping body Ib and pressed inward, which has a predetermined inclined position, while on the respective side to the again as curved bracket piece formed spring 2b at a corresponding point, a recess 5b is incorporated into which the obliquely located tab 7b engages, so that when the connector 2 is pushed into the clamping body 1b by releasing the spring, the affected recess wall of the recess 5b on the runs along inclined tab 7b and thereby the clamping end of the spring 2b is pressed off the clamping surface 3b again. The spring 2b is again supported on the counter bearing surface 4b of the clamping body 1b.

Bei dem Ausführungsbeispiel nach Figur 5 ist ein Klemmkörper 1c vorgesehen, der an seiner einen seitlichen Begrenzungswand im unteren, an die Gegenlagerfläche 4c angrenzenden Bereich offengelassen ist. Im vorderen Bereich der offenen Unterkante dieser seitenflächenwand des Klemmkörpers 1c ist eine schräg verlaufende Führungsfläche 7c vorgesehen. Die Feder 2c ist wieder als gebogenes Bügelstück ausgebildet und ist im Bereich ihres mit der Gegenlagerfläche 4c zusammenwirkenden Schenkels sowie im Bereich ihres Windungsbogens breiter ausgebildet als der Klemmkörper Ic. Seitlich neben einer Führungs-Absetzungskante 5c erstreckt sich dann ein schmalerer Bereich, der das Klemmende der Feder bildet, in den Klemmkörper 1 c bis zu dessen Klemmfläche 3c hinein. Das Lösen des Federdruckanschlusses geschieht wiederum dadurch, daß durch Beaufschlagung des Windungsbogens an der Frontseite die Feder 2 ein klein wenig in Leitereinsteckrichtung in den Klemmkörper 1 c hineingeschoben wird, wodurch die abgesetzte Führungskante 5c als Steuerstück an der Steuerfläche 7c entlang nach unten gleitet und wiederum das Klemmende der Feder von der Klemmfläche 3c des Klemmkörpers 1c c fortgedrückt wird.In the exemplary embodiment according to FIG. 5, a clamping body 1c is provided, which is left open on its one lateral boundary wall in the lower region adjacent to the counter bearing surface 4c. In the front area of the open lower edge of this side surface wall of the clamping body 1c, an obliquely running guide surface 7c is provided. The spring 2c is again designed as a curved piece of bracket and is wider than the clamping body Ic in the area of its leg interacting with the counter bearing surface 4c and in the area of its winding arc. Laterally next to a guide offset edge 5c, a narrower area, which forms the clamping end of the spring, extends into the clamping body 1c up to its clamping surface 3c. The release of the spring pressure connection is again done in that the spring 2 is pushed a little bit in the direction of insertion into the clamping body 1 c by acting on the winding arc on the front, whereby the stepped leading edge 5c as a control piece on the control surface 7c slides down and again Clamping end of the spring is pushed away from the clamping surface 3c of the clamping body 1c c.

Das Einstecken des anzuschließenden elektrischen Leiters in einen derartigen Federdruckanschluß ist dann problemlos, wenn es sich um einen Leiter mit massiver Metallseele handelt, mit der das Klemmende der Feder ohne weiteres wegzudrücken ist. sollen aber mit einem derartigen Federanschluß feindrähtige Leiter festgelegt werden, kann dies jetzt in sehr einfacher Weise dadurch geschehen, daß man die Feder mit einem Betätigungswerkzeug ein klein wenig im sinne der Lösungsbewegung verschiebt, das Klemmende der Feder dadurch von der Klemmfläche des Klemmkörpers fortbringt und den feindrähtigen Leiter problemlos einsteckt und die Feder dann in die Klemmstellung zurückfedern läßt. Unter Umständen kann jedoch das Verschieben der Feder in der Leerstellung des Anschlusses problematisch werden, insbesondere dann, wenn der Anschluß auf eine relativ große Klemmkraft ausgelegt ist, das Klemmende der Feder also auch in der Leerstellung des Anschlusses schon relativ stark auf die Klemmfläche des Klemmkörpers drückt, so daß es hier zu einer Verhakung kommen kann, die die Verschiebung der Feder in der Leerstellung blockieren könnte. Um dem entgegenzuwirken, ist in dem in Figur 5 dargestellten Ausführungsbeispiel in der Klemmfläche 3c an der Klemmstelle eine sehr kleine Aussparung 11 eingearbeitet, die nur so groß zu sein braucht, daß sie ein verhakendes Hängenbleiben der angrenzenden Kante des Klemmendes der Feder 2c verhindert.The plugging of the electrical conductor to be connected into such Spring pressure connection is no problem if it is a conductor with a solid metal core, with which the clamping end of the spring can be easily pushed away. but if such a spring connection should be used to fix fine-stranded conductors, this can now be done in a very simple manner by moving the spring a little bit in the direction of the release movement using an actuating tool, thereby moving the clamping end of the spring away from the clamping surface of the clamping body and the The fine-stranded conductor is inserted without any problems and the spring can then spring back into the clamping position. Under certain circumstances, however, the displacement of the spring in the empty position of the connection can become problematic, in particular if the connection is designed for a relatively large clamping force, that is to say the clamping end of the spring also presses relatively strongly onto the clamping surface of the clamping body even when the connection is empty , so that there can be a hooking that could block the displacement of the spring in the empty position. In order to counteract this, in the exemplary embodiment shown in FIG. 5, a very small recess 11 is machined into the clamping surface 3c at the clamping point, which only needs to be large enough to prevent the adjacent edge of the clamping end of the spring 2c from getting caught.

Bei dem in Figur 6 dargestellten Ausführungsbeispiel besteht die Besonderheit darin, daß die Feder zweiteilig ausgebildet ist. sie besteht aus einem ersten Teilstück 2d mit einem wiederum frontseitig liegenden Windungsbogen, wobei das andere Ende dieses Teilstückes 2d als gerundetes Klemmende mit der Klemmfläche 3d des Klemmkörpers 1 d zusammenwirkt. An das Teilstück 2d ist eine seitlich vorstehende, am mit der Steuerfläche 7d in der Aussparung 6d des Klemmkörpers 1d zusammenwirkenden Bereich abgerundete steuerlasche 5d vorgesehen. Das weitere Teilstück 2d' der Feder stützt sich mit seinem einen Ende im Windungsbogen des Teilstückes 2d und mit seinem anderen Ende auf der Gegenlagerfläche 4d des Klemmkörpers Id ab, sowie mit dem spitzen Bereich des Winkels unter dem Klemmende des Teilstückes 2d. Das Teilstück 2d' kann dabei auf die Erzeugung einer großen Klemmkraft ausgelegt werden, die es andererseits ermöglicht, das Teilstück 2d gerade im Klemmendenbereich, also im Bereich der Kontaktkrafteinleitung, oberflächengünstig zu gestalten.The special feature of the exemplary embodiment shown in FIG. 6 is that the spring is formed in two parts. it consists of a first section 2d with a turn bend lying on the front, the other end of this section 2d interacting as a rounded clamping end with the clamping surface 3d of the clamping body 1d. Provided on the section 2d is a control tab 5d which projects laterally and is rounded off in the region which cooperates with the control surface 7d in the recess 6d of the clamping body 1d. The further section 2d 'of the spring is supported with its one end in the winding arc of section 2d and with its other end on the counter bearing surface 4d of the clamping body Id, and with the acute region of the angle below the clamping end of section 2d. The section 2d 'can be designed to generate a large clamping force which, on the other hand, enables the section 2d to be designed with a favorable surface especially in the area of the clamping ends, that is to say in the area of the introduction of contact force.

Die vorstehend beschriebenen Ausführungsbeispiele basieren auf einem Konzept, nach dem der Klemmkörper zumindest im wesentlichen käfigoder gehäuseförmig ausgebildet ist und zumindest den wesentlichen Teil der Feder in sich aufnimmt. Ein Federdruckanschluß mit dem Prinzip der Federverschiebung parallel zu sich selbst und bei gleichzeitiger gesteuerter Fortbewegung des Klemmendes der Feder von der Klemmfläche des Klemmkörpers im Sinne der Lösung des Anschlusses kann jedoch auch nach einem ganz anderen Konstruktionsprinzip aufgebaut sein. So ist beispielsweise bei dem in den Figuren 7 und 8 dargestellten Federdruckanschluß der Klemmkörper 1 e als im wesentlichen stabförmiges Formstück ausgebildet, das die Feder 2e teilweise durchdringt und an dem die Feder 2e wieder parallel zu sich selbst in Leitereinsteck- oder auszugrichtung verschieblich geführt ist. Ein derartiger Klemmkörper 1e kann an seinem einen Ende beispielsweise fest in einer Aufnahme eingespannt sein und es bietet sich somit bezüglich der gehäuseseitigen Voraussetzungen zur Festlegung des Klemmkörpers 1e eine besondere Freizügigkeit. Insbesondere braucht in einem solchen Fall der Klemmkörper nicht etwa ein an einem Stromleitteil eines Klemmverbinders vorgesehener Klemmkäfig zu sein.The exemplary embodiments described above are based on a concept according to which the clamping body is at least essentially cage-shaped or housing-shaped and accommodates at least the essential part of the spring. A spring pressure connection with the principle of spring displacement parallel to itself and with simultaneous controlled movement of the clamping end of the spring from the clamping surface of the clamping body in the sense of the solution of the connection can also be constructed according to a completely different construction principle. For example, in the spring pressure connection shown in FIGS. 7 and 8, the clamping body 1 e is designed as an essentially rod-shaped fitting, which partially penetrates the spring 2e and on which the spring 2e is again guided in parallel with itself in the direction of insertion or removal. Such a clamping body 1e can, for example, be firmly clamped at one end in a receptacle, and thus there is a particular freedom of movement with regard to the requirements on the housing side for fixing the clamping body 1e. In particular, in such a case the clamping body need not be a clamping cage provided on a current conducting part of a clamping connector.

Im in den Figuren 7 und 8 dargestellten Ausführungsbeispiel ist die Feder 2e ein mit einem flach auslaufenden Windungsbogen gestaltetes Formteil, das in seinem mittleren Bereich eine sich vom unteren schenkel über fast den ganzen Windungsbogen erstrekkende schlitzförmige Aussparung 12 aufweist, durch den hindurch die mit der Feder 2e zusammenwirkenden Bereiche des Klemmkörpers 1e treten können. Der Klemmkörper 1e hat dabei in seinem vorderen Bereich einen etwa U-förmigen Querschnitt mit am vorderen Ende befindlichen und von vorne nach hinten schräg nach oben yerlaufenden Fahnenstücken 13.In the exemplary embodiment shown in FIGS. 7 and 8, the spring 2e is a molded part designed with a flat winding arc which has in its central region a slot-shaped recess 12 which extends from the lower leg over almost the entire winding arc and through which the spring is connected 2e interacting areas of the clamping body 1e can occur. The clamping body 1e has in its front area an approximately U-shaped cross section with flag pieces 13 located at the front end and running obliquely upwards from front to back.

Am Ende der schlitzförmigen Aussparung 12 im Auslaufsbereichsende des Windungsbogens der Feder 2e ist in nach innen gerichteter Verlängerung des abgewinkelten Endes des Windungsbogens der Klemmlasche 14 belassen, die bis zum Grund des U-förmigen Endes des Klemmkörpers 1e weist. Diese Lasche ist das Klemmende der Feder und der Grund des U-förmigen Abschnittes ist die Klemmfläche 3e des Klemmkörpers 1e.At the end of the slot-shaped recess 12 in the outlet region end of the winding arc of the spring 2e, the clamping tab 14 is left in an inward extension of the angled end of the winding arc, which points to the bottom of the U-shaped end of the clamping body 1e. This tab is the clamping end of the spring and the base of the U-shaped section is the clamping surface 3e of the clamping body 1e.

Die schlitzförmige Aussparung 12 der Feder 2e weist zu beiden seiten der Lasche 14 seitlich abgesetzte Erweiterungen 15 auf, durch die hindurch die beiden Fahnen 13 des Klemmkörpers 1e treten können. Die Endkanten 5e dieser seitlichen Erweiterungen 15 liegen dabei an den vorderen schrägen steuerflächen 7e der Fahnen 13 des Klemmkörpers 1 an. Wird nun von der Frontseite her (siehe Pfeil in Figur 7) auf das obere abgewinkelte Ende der Feder 2e eingewirkt, verschiebt sich diese parallel zu sich selbst auf dem Klemmkörper 1e, wobei das unten liegende Klemmende der Lasche 14 von der Klemmfläche 3e abgehoben wird, da die Endkanten 5e der seitlichen erweiterten Aussparungen 15 auf den Vorderkanten der Fahnen 13 als Steuerflächen 7e hochgeführt werden.The slot-shaped recess 12 of the spring 2e has on both sides of the tab 14 laterally offset extensions 15 through which the two tabs 13 of the clamping body 1e can pass. The end edges 5e of these lateral extensions 15 lie against the front oblique control surfaces 7e of the flags 13 of the clamping body 1. If the upper angled end of the spring 2e is now acted on from the front (see arrow in FIG. 7), it moves parallel to itself on the clamping body 1e, the clamping end of the tab 14 lying below being lifted off the clamping surface 3e, since the end edges 5e of the lateral enlarged recesses 15 are led up on the front edges of the flags 13 as control surfaces 7e.

Bei diesem Ausführungsbeispiel ist zugleich in einfacher Weise eine besondere Sicherung gegen einen unbeabsichtigten Leiterabzug verwirklicht. Die Anordnung ist nämlich so getroffen, daß die hinteren abgesetzten Kanten 16 der seitlich erweiterten Aussparungen 15 an den hinteren schrägen Kanten 17 der beiden Fahnen 13 liegen. Wird daher auf den Leiter ein Zug in Abzugsrichtung ausgeübt, besteht für die Kanten 16 die Tendenz, an den Schrägen 17 nach unten zu wandern und damit die Feder mit der Klemmlasche 14 noch fester auf den eingesteckten Leiter zu drücken.In this embodiment, a special protection against unintentional removal of the conductor is also implemented in a simple manner. The arrangement is such that the rear offset edges 16 of the side enlarged recesses 15 lie on the rear oblique edges 17 of the two flags 13. Therefore, if a pull is exerted on the conductor in the pull-off direction, there is a tendency for the edges 16 to move downward at the bevels 17 and thus to press the spring with the clamping tab 14 even more firmly onto the inserted conductor.

Bei allen vorstehend beschriebenen Ausführungsbeispielen ist der anzuschließende elektrische Leiter ein massiver oder feindrähtiger Leitungsdraht und der Klemmkörper besteht aus elektrisch leitendem Material.In all of the exemplary embodiments described above, the electrical conductor to be connected is a solid or finely stranded lead wire and the clamping body consists of electrically conductive material.

Im Hinblick darauf, daß zum Lösen des Anschlusses eine Verschiebung der Feder parallel zu sich selbst erfolgt, wird zweckmäßig das Klemmende der Feder so ausgestaltet, daß eine gute Kontaktnahme weniger durch eine hohe Federkraft als vielmehr durch ein geometrisch gutes Anschmiegen an den Leiter entsteht, um sicherzustellen, daß nicht ein zu starkes Verhaken des Klemmendes der Feder am Leiter die Verschiebebewegung behindert oder gar blockiert. In Figur 10 sind schematisch drei verschiedene Ausgestaltungsmöglichkeiten für die Klemmenden betroffener Federn dargestellt. Der starre Endbereich der Federn ist dabei durch längs- und/oder querverlaufende Schlitzungen 21, 22, 23 aufgelöst. In allen Fällen gewährleistet diese Auflösung, daß sich das Klemmende der Feder besser an den Leiter anschmiegen kann. In Anwendungsfällen, bei denen man sogar auf die an sich übliche Sperrhakenwirkung der Feder auf den angeschlossenen Leiter verzichten kann, kann das Klemmende der Feder sogar gerundet ausgebildet sein, wie beispielsweise im Ausführungsbeispiel nach Figur 6 angedeutet. Ein weiterer Vorteil dieser Ausgestaltung besteht darin, daß die so geschlitzte Feder den Leiter an mehreren Stellen berührt, so daß es auch mehrere Punkte gibt, die sich einem unbeabsichtigten Ausziehen entgegenstellen können. Vorteilhaft ist bei dieser Ausgestaltung auch, daß'sich Bewegungen des Leiters nicht direkt an der scharfen Endkante der Feder auswirken können.In view of the fact that the spring is displaced parallel to itself in order to release the connection, the clamping end of the spring is expediently designed such that good contact is achieved less by a high spring force than by a geometrically good contact with the conductor Ensure that the clamp end of the spring on the conductor does not obstruct or even block the displacement movement. In Figure 10, three different design options for the clamping ends of the springs concerned are shown schematically. The rigid end region of the springs is dissolved by longitudinal and / or transverse slots 21, 22, 23. In all cases, this resolution ensures that the clamping end of the spring can better nestle against the conductor. In applications in which it is even possible to dispense with the locking hook effect of the spring on the connected conductor, the clamping end of the spring can even be rounded, as indicated, for example, in the exemplary embodiment according to FIG. 6. Another advantage of this embodiment is that the spring thus slotted touches the conductor at several points, so that there are also several points which can oppose unintentional pulling out. It is also advantageous in this embodiment that movements of the conductor cannot have a direct effect on the sharp end edge of the spring.

Claims (17)

1. A spring pressure terminal for electrical conductors, comprising a clamp body (1-1e) of electrically conductive material and an actuable spring (2-2e) which is movable relative thereto and which fixes the conductor to the clamp body (1-1e), characterised in that the spring (2-2e) is supported on the clamp body (1-1e) displaceably parallel to itself in the direction in which a conductor is pushed in or pulled out, and has a control portion (5 -5e) for which a control surface (7-7e) is provided on the clamp body (1-1e).
2. A spring pressure terminal according to claim 1 characterised in that provided between the clamp body (1) and the spring (2) is a latching means (8, 9) for the clamping position of the spring (2) (Figure 1).
3. A spring pressure terminal according to claim 1 characterised in that the clamping end of the spring is provided with transverse and/or longitudinal slots (21, 22, 23) (Figure 9).
4. A spring pressure terminal according to claim 1 or claim 3 characterised in that the clamping end of the spring (2d) is bent over into an at least partially parallel position with the clamping surface (3d) of the clamp body (1d) (Figure 6).
5. A spring pressure terminal according to one or more of the preceding claims characterised in that the clamp body (1, 1a, 1b, 1c, 1d) is of a housing-like configuration and the spring is substantially accommodated therein (Figures 1-6).
6. A spring pressure terminal according to claim 1 characterised in that in at least one side wall the clamp body (1, 1a, 1d) has an opening (6, 6a, 6d) which, at its one side, as a boundary, has an inclinedly disposed control surface (7, 7a, 7d) while provided on the spring on at least one side is a control portion (5, 5a, 5d) which projects into the opening and which co-operates with the control surface (Figures 1, and 6).
7. A spring pressure terminal according to claim 6 characterised in that the control surface (7) of the opening (6) is disposed on the side of the opening which is towards the open front side, the spring (2) is provided with at least one lateral control projection (5) at its clamping end and the spring (2) is supported in the clamp body (1) in such a way that it can be pulled out parallel to itself for releasing the terminal (Figure 1).
8. A spring pressure terminal according to claim 2 and claim 7 characterised in that the lower forward region of the clamp body (1) is left open and downwardly open recesses (8) are incorporated into the lower edges of the side walls of the clamp body, wherein in the clamping position of the terminal detent projections (9) provided laterally on the spring (2) are accommodated in said recesses (8) (Figure 1).
9. A spring pressure terminal according to claim 6 characterised in that the inclinedly disposed control surface (7a, 7d) is arranged on the side of the opening (6a, 6d) which is remote from the open front side and a lateral control bar (5a, 5d) which projects into the opening is provided as the control portion on the spring (2a, 2d), wherein the spring (2a, 2d) can be moved into the terminal release position by being pushed in parallel relationship to itself into the clamp body (1a, 1d) (Figures 2 and 6).
10. A spring pressure terminal according to one of claims 1 to 6 characterised in that an inwardly projecting, inclinedly disposed control bar (7b) which includes the control surface is punched into a side wall of the clamp body (1 b), and provided in the spring (2b) for said control bar (7b) is an opening (5b) which accommodates the control bar (7b) and which, with its one boundary, forms the control portion (Figure 4).
11. A spring pressure terminal according to one of the preceding claims characterised in that the spring is of a two-part construction and has a portion (2d) having the clamping end and the control portion (5d) and a further portion (2d') which presses the portion (2d) against the clamping surface (3d) of the clamp hody (1d) (Figure 6).
12. A spring pressure terminal according to one or more of the preceding claims characterised in that the spring (2a, 2b, 2c, 2d) is also guided with a portion that projects out of the clamp body, on an insulating housing portion (10) which is disposed around the clamp body (Figure 3).
13. A spring pressure terminal according to one of claims 1 to 5 characterised in that the clamp body (1c) is open on its one side wall, in the lower region thereof, and provided at the free lower edge of said side wall is an inclinedly disposed control surface (7c) for which a reduced control edge (5c) is provided as the control portion on the spring (2c) (Figure 5).
14. A spring pressure terminal according to one of claims 1 to 4 characterised in that the clamp body (1e) is in the form of a bar-like shaped portion on which the spring (2e) is guided displaceably parallel to itself, the spring being provided with apertures (12, 15) therethrough for accommodating the bar-like shaped portion (le) (Figures 7 and 8).
15. A spring pressure terminal according to claim 14 characterised in that in its region which co-operates with the spring (2e) the clamp body (1e) is of U-shaped cross-section and provided at its free end are obliquely rearwardly inclined lugs (13) which have the inclined control surface (7e) on their one boundary side, wherein the spring (2e) is in the form of a loop member provided with an arcuate turn that terminates in a flat configuration, the loop member having a central through slot (12) for the clamp body (1e) to pass therethrough and a clamping bar (14) which points towards the base of the U-shape, that forms the clamping surface (3e) of the clamp body (1e), wherein provided on the two sides of the clamping bar (14) are laterally displaced openings (15) through which the lugs (13) pass, the one base (5e) of the openings forming respective control portions which co-operate with the control surfaces (7e) (Figures 7 and 8).
16. A spring pressure terminal according to claim 15 characterised in that the other base (16) of the lateral openings (15), with the rearward inclined surfaces (17) of the lugs (13), form a means for securing the conductor against being pulled out (Figures 7 and 8).
17. A spring pressure terminal according to one or more of the preceding claims characterised in that a small recess (11) is provided in the clamping surface (3-3e) of the clamp body (1-1e), being opposite to the clamping end of the spring in the clamping position thereof (Figure 5).
EP83106380A 1982-09-09 1983-06-30 Spring pressure terminal for electrical conductors Expired EP0104330B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3233457A DE3233457C2 (en) 1982-09-09 1982-09-09 Spring pressure connection for electrical conductors
DE3233457 1982-09-09

Publications (2)

Publication Number Publication Date
EP0104330A1 EP0104330A1 (en) 1984-04-04
EP0104330B1 true EP0104330B1 (en) 1986-02-26

Family

ID=6172799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106380A Expired EP0104330B1 (en) 1982-09-09 1983-06-30 Spring pressure terminal for electrical conductors

Country Status (5)

Country Link
US (1) US4582380A (en)
EP (1) EP0104330B1 (en)
JP (1) JPS59132579A (en)
CA (1) CA1220258A (en)
DE (2) DE3233457C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391381B (en) * 1987-08-03 1990-09-25 Adels Kg Clamping apparatus (terminal apparatus) for the connection of electrical conductor ends
US6062918A (en) * 1996-07-01 2000-05-16 The Whitaker Corporation Electrical receptacle contact assembly
DE102005045596B3 (en) 2005-09-23 2007-06-21 Siemens Ag Spring plug terminal
CN201051541Y (en) * 2007-05-08 2008-04-23 康联精密机电(深圳)有限公司 A wiring device
JP2009283308A (en) * 2008-05-22 2009-12-03 Yazaki Corp Female terminal
DE202011106033U1 (en) * 2011-09-23 2013-01-11 Wieland Electric Gmbh wire connection
DE202017101148U1 (en) * 2017-03-01 2018-06-04 Wago Verwaltungsgesellschaft Mbh Wire connecting terminal element
DE102018109545A1 (en) * 2018-04-20 2019-10-24 Phoenix Contact Gmbh & Co. Kg Spring terminal connection and conductor terminal

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119940B (en) * 1960-09-21 1961-12-21 Seger & Angermeyer Desco Werk Screwless connection terminal with spring-loaded pressure contact
FR85856E (en) * 1963-06-24 1965-10-29 Electronique Et D Automatique Improvements to electrical connectors
US3350681A (en) * 1967-01-24 1967-10-31 Benoit Gerard Electrical connectors
NL6803235A (en) * 1968-03-07 1969-09-09
DE2503091A1 (en) * 1975-01-25 1976-07-29 Hirschmann Radiotechnik Spring clamp for conductor fastening - is by a clamping spring mounted in a housing
US3937548A (en) * 1975-02-26 1976-02-10 Amp Incorporated Device for splicing wire
DE2706988C2 (en) * 1977-02-18 1984-10-18 Hermann Kleinhuis GmbH & Co KG, 5880 Lüdenscheid Screwless connection terminal for power transmission from electrical conductors
DE2730680C2 (en) * 1977-07-07 1983-11-10 C.A. Weidmüller KG, 4930 Detmold Screwless clamp for electrical conductors
DE2724354C2 (en) * 1977-05-28 1982-09-30 C.A. Weidmüller KG, 4930 Detmold Screwless clamp for electrical conductors
FR2402949A1 (en) * 1977-09-09 1979-04-06 Amp France ELECTRICAL CONNECTOR WITH A FEMALE CONTACT HOUSED IN A ONE-PIECE INSULATION BOX

Also Published As

Publication number Publication date
DE3233457C2 (en) 1986-01-23
EP0104330A1 (en) 1984-04-04
DE3233457A1 (en) 1984-03-15
JPS59132579A (en) 1984-07-30
DE3362288D1 (en) 1986-04-03
US4582380A (en) 1986-04-15
CA1220258A (en) 1987-04-07

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