EP3504755B1 - Spring clamp terminal - Google Patents

Description

The invention relates to a spring-loaded terminal connection according to the preamble of claim 1, in particular a spring-loaded terminal connection for connecting an electrical conductor with an insulating housing, a busbar and a clamping spring which has a contact leg, a spring bow, a clamping leg and an actuating section, the clamping leg having a clamping edge and the clamping edge with the busbar forms a clamping point for clamping the electrical conductor between the clamping edge and the busbar, and with an actuating element which is movably mounted in the insulating material housing and is designed to apply force to the actuating section.

Spring clamp connections of the type mentioned are known in various forms.

EP 2 400 595 A1 shows a connection terminal with an insulating material housing and with at least one spring clamping unit with a clamping spring and a busbar section in the insulating material housing. An actuating lever is provided which is pivotably arranged in the insulating material housing and which, when displaced, exerts a tensile force acting against the spring force on the clamping spring. In one embodiment, a movable bracket formed in one piece with the insulating material housing is provided, which delimits an actuation channel for an actuation tool and is suspended in an actuation section of a leg spring. By tilting the operating tool resting on the insulating strip around an opposite pivot point on the insulating housing the clamping point between the leg spring and a busbar can be opened.

EP 2 234 211 A1 discloses a spring clamp connection for an electrical conductor with a linearly movably received slide in an insulating material housing, which can be moved in the longitudinal direction for opening at the clamping point opposite the contact leg of the contact body. For this purpose, the slide has, at its end facing the interior of the housing, a deflection slope which interacts with the clamping arm of the contact spring. The externally accessible slide can be moved into the interior of the housing at the touch of a finger and has openings for receiving electrical conductors.

A similar embodiment of a spring-loaded terminal with the lever which can be linearly displaced in the interior of the insulating material housing is shown in FIG DE 10 2006 018 129 B4 described. In order to optimize the ratio between the displacement path of the opener and the pivoting path of the clamping leg, an actuating leg is arranged on the side of the clamping leg, on which the area acted upon by the opener is located.

DE 10 2013 110 789 B3 shows an adapter for contacting busbars. A connection structure is provided which presses on spring clips and is displaced with the aid of a common lever switch.

From the EP 2 849 287 A1 an electrical connection device with at least one conductor in a terminal is known, which belongs to an electrical device. From the DE 10 2004 045 026 B3 an electrical connection or connecting terminal is known. From the DE 20 2015 103 176 U1 a terminal block wiring apparatus is known. From the US 2016/0020543 A1 an electrical connection device with a spring-loaded terminal contact and a compact actuator and a four-pole connector with a large number of spring-loaded terminal contacts are known. From the DE 20 2009 002 324 U1 a connection terminal for connecting conductor ends is known which corresponds to the preamble of claim 1.

Based on this, the object of the present invention is to create an improved spring-loaded terminal connection.

The object is achieved with the spring-loaded terminal connection with the features of claim 1. Advantageous embodiments are described in the subclaims.

It is proposed that the actuating element is mounted linearly displaceably in the insulating material housing and extends from the actuating section of the clamping spring over a plane spanned by the support surface of the contact leg on the busbar or the insulating material housing. The actuating element is designed to apply force to the actuating section of the clamping spring on the side of the actuating section which faces away from the bearing surface of the contact leg on the busbar.

In this way, a very compact spring-loaded terminal connection that is optimized in terms of the effect of the actuating force can be created. The clamping spring can be opened by reaching under or behind the actuating section in the pulling direction of the clamping spring, so that the linearly displaceable actuating element moves the clamping leg when the actuating lever is displaced, e.g. by pivoting it in the direction of the contact leg. The linearly displaceable actuating element can be guided past the clamping spring, for example, laterally or possibly also in front of or behind the clamping spring and extends from the actuating section of the clamping spring beyond a plane that spans the contact surface of the contact leg on the busbar or through the insulating material housing becomes. In this way, for example, a pivotable actuating lever can act on the actuating element, which is positioned on the side of the spring-loaded terminal connection diametrically opposite the actuating leg.

The actuating element can be guided in a linearly displaceable manner by guide contours in the insulating material housing and / or the clamping spring. In doing so, the leadership be limited by stops to prevent excessive deflection of the clamping leg.

The actuating element can have a bearing section for an actuating lever. The bearing section and the bearing surface are matched to one another in such a way that the actuating element can be linearly displaced, e.g. by pivoting the actuating lever which is supported on the bearing surface of the insulating housing and opposed to the bearing section of the actuating element. Between the bearing section and the insulating material housing, there can then be a free space delimited by a support surface of the insulating material housing for receiving the actuating lever.

The actuating lever can be a part that is pivotably connected to the actuating element, or else a separate actuating tool that can be inserted into the spring-force terminal connection if necessary.

The bearing which connects the operating lever to the operating element can be designed as a pivot bearing for the operating lever. The actuating lever is thus provided as a functional component of the spring-loaded terminal connection. This actuating lever can be, for example, a pivot lever formed from insulating material, which is articulated to the actuating element with the pivot bearing. The position of this pivot bearing is then matched to the actuating lever and the actuating element in such a way that the actuating element is displaced linearly when the actuating lever is pivoted. The insulating material housing provides a support surface for the actuating lever, which acts as a counter bearing.

Such an actuating lever can have a lever arm section and a pressure arm section which protrude in different directions from the pivot bearing.

In one embodiment, the lever arm section and the pressure arm section can protrude in opposite directions. The pressure arm section can then extend at an obtuse angle (greater than 90 °) to the longitudinal axis of the lever arm section leading through the pivot bearing. This has the advantage that the pressure arm section interacting with the support surface of the insulating material housing is not simply opposite the free end of the lever arm section, but is guided out of alignment of the lever arm section in the direction of the support surface. This enables a very compact embodiment with optimized power transmission, in which actuation takes place by exerting a tensile force on the lever arm section.

In another embodiment, the lever arm section and the pressure arm section can be located on the same side of the pivot bearing, i.e. extend away from the pivot bearing on the same side of the actuating element. The pressure arm section is then at an acute angle (less than 90 °) to the longitudinal axis of the lever arm section leading through the pivot bearing. This enables an even more compact embodiment with a force transmission in which actuation takes place by exerting a compressive force on the lever arm section.

The actuating lever has a plain bearing support contour to form a plain bearing with the support surface of the insulating material housing. This support contour can be, for example, a rounded / curved contour or an angular contour with which the contact surface is reduced compared to a full-surface support. This ensures that the actuating lever, which is linked to the actuating element by means of the pivot bearing, slides along the support surface when it is pivoted in order to bring about a linear displacement of the actuating element.

In another embodiment, the actuating lever can be a (separate) actuating tool that can be introduced into the free space. The actuating element then has a bearing surface opposite the bearing surface of the insulating material housing. The bearing surface and the bearing surface are arranged offset from one another in the direction of extent of the actuating tool introduced into the free space. For such a separate operating tool, such as a Screwdriver, a bearing for linear displacement of the actuating element when the actuating tool is pivoted is provided on the one hand by the bearing surface of the insulating material housing and on the other hand by a bearing surface on the actuating element opposite the bearing surfaces. The free space for receiving an actuating tool is then located between this pair of offset bearing surfaces and bearing surfaces.

The actuating element can have a guide wall arranged laterally next to the clamping spring and linearly displaceably mounted on the insulating material housing and a finger protruding from the guide wall under the actuating section. The finger is arranged in such a way that on the side of the actuating section which faces away from the contact leg, it comes to rest against the actuating section and, by applying force, to move the actuating section in the direction of the contact leg of the clamping spring.

In this context, the term “under” is to be understood as being on the side facing away from the contact leg.

The clamping spring can be a U-shaped bent leg spring. The actuating section of the clamping spring is then arranged at a distance from the clamping edge on the clamping leg or connected to the clamping leg. The actuating section thus acts on the clamping limb in order to move the clamping limb by applying force to the actuating section in such a way that the clamping point formed by the clamping edge and the busbar is opened for clamping an electrical conductor.

The actuating section of the clamping spring can be formed on a tab protruding laterally from the clamping leg. The actuating section thus forms a part which is integrally connected to the clamping limb and protruding laterally from the clamping limb.

The actuating section of the clamping spring can, however, also be designed as a frame element. The frame element can be formed from a side web and a transverse web protruding from the side web. The frame element can also have two side webs connected to the clamping leg and spaced apart from one another and a transverse web connecting the side webs. A clamping tongue provided with the clamping edge protrudes from the clamping leg between the side webs. The transverse web is then upstream and / or downstream of the clamping edge in the insertion direction. The frame element is thus formed from the clamping leg. The clamping tongue, which carries the clamping edge, is then oriented relative to the frame element in such a way that the clamping edge of the clamping tongue is not covered by the crosspiece, at least when the conductor is inserted and clamped, and can clamp the electrical conductor.

The transverse web can have a further clamping edge for clamping an electrical conductor or form such a clamping edge. The transverse web and the clamping tongue are then aligned with respect to the plane of the busbar and an electrical conductor resting thereon, that the clamping edge of the clamping tongue and the clamping edge of the transverse web are arranged one behind the other in the conductor insertion direction. The transverse web can be positioned upstream or downstream of the clamping edge of the clamping tongue in the conductor insertion direction.

The formation of a clamping spring with such a frame element on the clamping leg also has advantages regardless of the existence or the embodiment as an actuating element. In this respect, a spring-loaded terminal connection for clamping an electrical conductor with an insulating material housing, a busbar and a clamping spring, which has a contact leg, a spring bow, a clamping leg and an actuating section, offers further advantages. The clamping leg has a clamping edge which, together with the busbar, forms a clamping point for clamping the electrical conductor between the clamping edge and the busbar. The actuating section of the clamping spring is then designed as a frame element which has, for example, two side webs connected to the clamping leg and spaced apart from one another and optionally a transverse web connecting the side webs, one with the clamping edge provided clamping tongue protrudes from the clamping leg between the at least one side web or at a distance therefrom and the transverse web is upstream or downstream of the clamping edge in the insertion direction.

In a further advantageous embodiment of such a spring-loaded terminal connection, the transverse web has a further clamping edge for clamping an electrical conductor.

The transverse web is optional in this actuating section of the clamping spring, which is designed as a frame element. The frame element can also be formed only by two side webs connected to the clamping leg and spaced apart from one another. Then there is no need for another clamping edge. However, there remains the advantage that the actuating section can be stabilized with the aid of the side webs, in particular when the actuating element acts on one side.

The clamping point is opened in a structurally suitable manner by applying force to the actuating section. The actuating lever can be oriented, for example, pointing in the direction of the electrical conductor to be clamped
be. This facilitates the handling of both the electrical conductor and the actuating lever. However, an embodiment is also conceivable, for example, in which the actuating arm of the actuating lever is oriented away from the electrical conductor to be clamped.

The insulating material housing of the spring-loaded terminal connection in the embodiments described above can have a recess, the bearing surface for the actuating lever being arranged in the recess. The counter-bearing provided by the support surface for the actuating lever is arranged in this way at a smaller distance from the actuating section of the clamping spring than the bearing section of the actuating element. This enables an even more compact design of the spring-loaded terminal connection with good kinematics.

In order to hold the clamping spring in the open position, in which the clamping point is open, the insulating material housing can have a surface section which is oriented to hold the actuating lever in an over-center position or a rest position.

This surface section can, for example, be a stop surface adjoining the support surface of the insulating material housing for the pressure arm section of the actuating lever. This is arranged in the pivoting direction of the actuating lever towards the open position in such a way that the pressure arm section can be guided past the connecting line between the pivot bearing and the contact of the actuating element on the actuating section of the clamping spring and in the pivoting direction only hits the stop surface behind this connecting line to allow further pivoting to prevent and to keep the operating lever in this over-center position.

This surface section can, however, also be a step which lies opposite a bearing surface on the actuating element for guiding a separate operating tool or a resting surface adjoining the bearing surface. In the open position, the end of the operating tool then rests on the step and is held on the step with a force which acts on the operating tool in the direction of the step via the operating element.

The object mentioned at the beginning is also achieved by a spring-force terminal connection for clamping an electrical conductor, the spring-force terminal connection having at least one clamping spring for clamping the electrical conductor to the spring-force terminal connection and at least one pivotable actuating lever for actuating the clamping spring, the actuating lever between an open position in which a conductor clamping point formed with the clamping spring is open, and a closed position, in which the clamping point is closed, can be moved back and forth, the spring-force clamping connection having an actuating element which can be actuated by the pivotable actuating lever and which is mounted as a substantially linearly displaceable Tension element is designed, through which the clamping point can be opened by means of a tensile force acting on the clamping spring when the actuating lever is pivoted into the open position. The advantages explained above can also be realized in this way. In contrast to the prior art, the clamping leg of the clamping spring is opened by a tensile force exerted by the tensile element, which enables mechanically favorable force transmission with a compact design of the spring-force terminal connection. In addition, the actuating lever can be designed to be particularly ergonomic.

The object mentioned at the beginning is also achieved by a spring-force terminal connection for clamping an electrical conductor, the spring-force terminal connection having at least one clamping spring for clamping the electrical conductor to the spring-force terminal connection and at least one pivotable actuating lever for actuating the clamping spring, the actuating lever between an open position in which a conductor clamping point formed with the clamping spring is open, and a closed position, in which the clamping point is closed, can be moved back and forth, the open position and the closed position forming end positions of the pivoting movement of the actuating lever, at which the actuating lever is attached to a mechanical The stop comes to rest, wherein the actuating lever can be pivoted beyond at least one of the end positions into an overpressure position without parts of the spring-loaded terminal connection or the bed being damaged in the process The actuating lever is released from the spring-loaded terminal connection. In this way, the spring-loaded terminal connection and in particular the mounting of the actuating lever can be protected from damage even if the force is too high. The actuation lever can thus evade the excessive force to a certain extent, since it has a certain idle or idle travel.

According to an advantageous development of the invention, it is provided that the actuating element can be linearly displaced by moving the actuating lever into the at least one overpressure position. During this overpressing movement of the actuating lever, the actuating element can thus at least partially continue its linear movement. If the operating lever is in the overpressure position arrived, the actuating element can also be arranged again in the same linear position as before in the end position close to the overpressure position, ie the open position.

According to an advantageous development of the invention it is provided that the actuating lever is rotatably mounted on the linearly displaceable actuating element, the actuating lever taking part in the linear displacement of the actuating element when the actuating lever is moved into the at least one overpressure position. In this way, the actuating lever can evade the excessively high actuating force without damaging the actuating lever or its mounting.

According to an advantageous development of the invention, it is provided that the spring-loaded terminal connection has an overpressure contour formed on the insulating material housing or another part of the spring-force terminal connection, on which the support contour passes when the actuating lever is moved into the overpressure position. In this way, the actuating lever can be safely guided into the overpressure position.

According to an advantageous development of the invention it is provided that the overpressure contour runs at least in sections at an angle to the linear movement direction of the actuating element. In this way, the overpressure contour can form a type of temporary stop in the end position of the actuating lever and at the same time bring about suitable guidance of the actuating lever into the overpressure position.

According to an advantageous development of the invention, it is provided that the actuating force of the actuating lever increases when the actuating lever is moved from the end position into the overpressure position. This has the advantage that the user receives the information by haptic means that the end position has actually been reached.

As mentioned, the actuating lever is pivotably mounted on the spring-force terminal connection via a pivot bearing. The actuating lever can be attached to any holding part of the spring-loaded terminal connection, i.e. this holding part then contains bearing elements on the holding part to form part of the pivot bearing. This holding part of the spring-loaded terminal connection can be, for example, an area of the insulating housing or the actuating element. The actuating lever has bearing elements of the pivot bearing on the lever side. One of the bearing elements, i.e. either the bearing elements on the lever side or the bearing elements on the holding part side, can be designed as a pin and the counterpart of the bearing element as a bearing hole, e.g. as a through hole or a blind hole.

According to an advantageous development of the invention it is provided that the actuating lever is attached to a holding part of the spring-loaded terminal connection, in particular is attached to the actuating element, in such a way that the actuating lever cannot be detached from the holding part without being destroyed. The spring-loaded terminal connection thus has a non-separable, prefabricated assembly which has at least the actuating lever and the holding part. In this way, assembly time can be saved when assembling the individual parts of the spring-loaded terminal connection.

According to an advantageous development of the invention, it is provided that the actuating lever is attached to a holding part of the spring-loaded terminal connection via a swivel bearing, the actuating lever having lever-side bearing elements of the swivel bearing and the holding part having bearing elements of the swivel bearing on the holding-part side, the bearing elements on the holding part-side being directly form-fitting around the during manufacture lever-side bearing elements or are formed on the lever-side bearing elements. This can take place, for example, in that the bearing elements on the lever side are overmolded with the bearing elements on the holding part in a plastic injection molding process.

According to an advantageous development of the invention it is provided that the material of the lever-side bearing elements has a different melting temperature than the material of the bearing elements on the holding part side. In particular, the melting temperature of the bearing elements on the lever side can be higher than the melting temperature of the material of the bearing elements on the holding part side. In this way, damage to the bearing elements on the lever side is avoided during the molding process of the bearing elements on the holding part side onto the bearing elements on the lever side.

1. a) Herstellen des Betätigungshebels mit hebelseitigen Elementen des Schwenklagers,
2. b) Herstellen des Halteteils des Federkraftklemmanschlusses, an dem der Betätigungshebel gelagert ist, indem das Halteteil mit halteteilseitigen Lagerelementen des Schwenklagers um die hebelseitigen Lagerelemente des Schwenklagers herum geformt wird, sodass die hebelseitigen Lagerelemente des Schwenklagers während des Herstellprozesses des Halteteils von den halteteilseitigen Lagerelementen des Schwenklagers aufgenommen werden,
3. c) Fertigstellen des Federkraftklemmanschlusses mit der Baugruppe aus dem Betätigungshebel und dem Halteteil des Federkraftklemmanschlusses, an dem der Betätigungshebel befestigt ist, sowie den weiteren Elementen des Federkraftklemmanschlusses einschließlich der Klemmfeder.

The advantages mentioned above can also be achieved by a method for producing a spring-force terminal connection for clamping an electrical conductor, the spring-force terminal connection having at least one clamping spring for clamping the electrical conductor to the spring-force terminal connection and at least one pivotable actuating lever for actuating the clamping spring, which is connected via a pivot bearing is attached to a holding part of the spring clamp connection, with the steps:

1. a) Manufacture of the actuating lever with lever-side elements of the pivot bearing,
2. b) Manufacture of the holding part of the spring-loaded clamping connection on which the actuating lever is mounted, in that the holding part is formed with bearing elements of the swivel bearing on the holding part side around the bearing elements of the swivel bearing on the lever side, so that the bearing elements of the swivel bearing on the lever side are separated from the bearing elements of the swivel bearing on the holding part during the manufacturing process of the holding part be included,
3. c) Completion of the spring-loaded terminal connection with the assembly consisting of the actuating lever and the holding part of the spring-loaded terminal connection to which the actuating lever is attached, as well as the other elements of the spring-loaded terminal connection including the clamping spring.

Figur 1 a) -

Skizze einer ersten Ausführungsform eines Federkraftklemmanschlusses in einer Offen-Position mit eingeführtem elektrischem Leiter und schwenkbarem Zugbetätigungshebel;

Figur 1 b) -

Skizze des Federkraftklemmanschlusses aus Figur 1 a) in der geschlossenen Position;

Figur 2 a) -

Skizze einer zweiten Ausführungsform eines Federkraftklemmanschlusses in einer Offen-Position mit eingeführtem elektrischem Leiter und schwenkbarem Druckbetätigungshebel;

Figur 2 b) -

Skizze des Federkraftklemmanschlusses aus Figur 2 a) in der geschlossenen Position;

Figur 3 a) -

Skizze einer Abwandlung der ersten Ausführungsform eines Federkraftklemmanschlusses in der Offen-Position mit in Leitereinsteckrichtung weisendem Zugbetätigungshebel;

Figur 3 b) -

Skizze einer Abwandlung der zweiten Ausführungsform eines Federkraftklemmanschlusses in der Offen-Position mit in Leitereinsteckrichtung weisendem Druckbetätigungshebel;

Figur 4 -

Perspektivische Ausschnittansicht einer an einer Stromschiene gelagerten Klemmfeder mit Rahmenelement;

Figur 5 a) -

Perspektivische Ansicht einer dritten Ausführungsform eines Federkraftklemmanschlusses mit separaten Betätigungswerkzeug als Betätigungshebel und Blick auf eine Steckkontaktöffnung;

Figur 5 b) -

Perspektivische Ansicht des Federkraftklemmanschlusses aus Figur 5 a) mit Blick auf den Leitereinführungskanal;

Figur 6 a) -

Seitenschnittansicht des Federkraftklemmanschlusses aus Figuren 5 a) und 5 b) mit eingeführtem Betätigungswerkzeug;

Figur 6 b) -

Perspektivische Schnittansicht des Federkraftklemmanschlusses aus Figuren 5 a) und 5 b) mit eingeführtem Betätigungswerkzeug;

Figur 7 a) -

Seitenschnittansicht des Federkraftklemmanschlusses aus Figuren 5 a) und 5 b) mit Betätigungswerkzeug in der Offenposition;

Figur 7 b) -

Perspektivische Schnittansicht des Federkraftklemmanschlusses aus Figuren 5 a) und 5 b) mit Betätigungswerkzeug in der Offenposition;

Figur 8 -

perspektivische Ansichten einer weiteren Ausführungsform eines Federkraftklemmanschlusses in unterschiedlichen Stellungen des Betätigungshebels;

Figur 9, 10-

der Federkraftklemmanschluss gemäß Figur 8 in seitlichen Schnittdarstellungen;

Figur 11 -

eine weitere Ausführungsform eines Federkraftklemmanschlusses in seitlicher Schnittdarstellung.

The invention is explained in more detail below on the basis of exemplary embodiments. Show it:

Figure 1 a) -

Sketch of a first embodiment of a spring-loaded terminal connection in an open position with an inserted electrical conductor and a pivotable pull-actuating lever;

Figure 1 b) -

Sketch of the spring-loaded terminal connection Figure 1 a) in the closed position;

Figure 2 a) -

Sketch of a second embodiment of a spring-loaded terminal connection in an open position with an electrical conductor inserted and a pivotable pressure actuation lever;

Figure 2 b) -

Sketch of the spring-loaded terminal connection Figure 2 a) in the closed position;

Figure 3 a) -

Sketch of a modification of the first embodiment of a spring-loaded terminal connection in the open position with a pull-actuating lever pointing in the conductor insertion direction;

Figure 3 b) -

Sketch of a modification of the second embodiment of a spring-loaded terminal connection in the open position with a pressure-actuating lever pointing in the conductor insertion direction;

Figure 4 -

Perspective detail view of a clamping spring mounted on a busbar with a frame element;

Figure 5 a) -

Perspective view of a third embodiment of a spring-loaded terminal connection with a separate operating tool as an operating lever and a view of a plug contact opening;

Figure 5 b) -

Perspective view of the spring-loaded terminal connection Figure 5 a) with a view of the conductor entry channel;

Figure 6 a) -

Side sectional view of the spring-loaded terminal connection Figures 5 a) and 5 b ) with inserted operating tool;

Figure 6 b) -

Perspective sectional view of the spring-loaded terminal connection from Figures 5 a) and 5 b ) with inserted operating tool;

Figure 7 a) -

Side sectional view of the spring-loaded terminal connection Figures 5 a) and 5 b ) with operating tool in the open position;

Figure 7 b) -

Perspective sectional view of the spring-loaded terminal connection from Figures 5 a) and 5 b ) with operating tool in the open position;

Figure 8 -

perspective views of a further embodiment of a spring-loaded terminal connection in different positions of the actuating lever;

Figure 9, 10-

the spring clamp connection according to Figure 8 in lateral sectional views;

Figure 11 -

a further embodiment of a spring-loaded terminal connection in a lateral sectional view.

Figure 1 a) shows a sketch of a spring-loaded terminal connection 1, which has an insulating material housing 2 and a clamping spring 3 accommodated in the insulating material housing 2, as well as a busbar 4. The clamping spring 3 is mounted on the busbar 4 with a contact leg 5. For this purpose, for example, a holding frame 6 can extend away from a support section 7 of the busbar 4. The clamping spring 3 is thus arranged in a self-supporting manner on the busbar 4 without exerting any significant force on the insulating material housing 2.

An electrical conductor 8 is inserted into a conductor entry channel (not shown) in the insulating material housing 2 in the conductor insertion direction L into the insulating material housing 2. It can then be guided in the illustrated open position between a clamping leg 9 of the clamping spring 3 and the support section 7 of the busbar 4 (contact section), so that a clamping edge 10 at the free end of the clamping leg 9 together with the busbar 4 forms a clamping point for connecting the electrical Head 8 forms. It is clear that the stripped end 11 of the electrical conductor 8 is positioned between the support section 7 and the clamping edge 10 and is passed through a conductor lead-through opening 12 in a bearing section designed as a holding frame 6. A protruding contact edge, on which the contact force of the clamping spring 3 is concentrated when an electrical conductor 8 is clamped, can be present on the support section 7 of the busbar 4.

The clamping spring 3 is designed as a U-shaped leg spring with the contact leg 5, an adjoining spring bow 13 and the adjoining clamping leg 9.

In order to now open the clamping point for removing the electrical conductor 8, an actuating element 14 is provided which can be linearly displaced into the insulating material housing 2 is built in. The actuating element 14 engages under an actuating section 15 arranged on the clamping limb 9 in order to displace the clamping limb 9 in the direction of the contact limb 5 by linear displacement of the actuating element 14. The actuating element 14 thus acts on the actuating section 15 of the clamping spring 3 on the side of the actuating section 15 facing away from the contact leg. A compressive force is thus exerted on the actuating section 15 in order to open the clamping point.

It becomes clear that the actuating element 14 has a guide wall 16 which is guided laterally past the clamping spring 3 and has a finger 17 which is arranged on the guide wall 16 and rests on the actuating section 15 in the illustrated open position.

To move the actuating element 14, an actuating lever 18 is pivotably arranged on the actuating element 14. For this purpose, a pivot bearing 19 is provided on the actuating lever 18 and the actuating element 14. The pivot bearing 19 can be designed, for example, as a journal bearing in which a journal dips into a bearing opening. The pin can be present on the actuating lever 18 or the actuating element 14 and the corresponding bearing opening can then be present on another element, i.e. the actuating element 14 or the actuating lever 18.

Figure 1 b) shows the spring-loaded terminal connection 1 from Figure 1 a) in the closed position. It is clear that the actuating lever 18 is now pivoted down with its lever arm section 20 in the direction of the conductor insertion opening or in the direction of the clamping spring 3. It can also be seen that the actuating lever 18 has a pressure arm section 21 opposite the lever arm section 20. This pressure arm section 21 interacts with a bearing surface 22 of the insulating material housing 2 and rests on this bearing surface 22 of the insulating material housing 2 at least when it is pivoted into the open position. When pivoted, the pressure arm section 21 then slides with its rounded support contour 23 along the surface of the support surface 22, so that a plain bearing is formed. The counter bearing is formed by the pivot bearing 19, as a result of which the actuating element 14 is then displaced linearly in the actuating direction B.

If now the operating lever 18 counterclockwise in the open position according to Figure 1 is pivoted, then the finger 17 of the actuating element 14 moves upwards in the actuating direction B in order to move the clamping leg 9 in the direction of the contact leg 5 against the spring force of the clamping spring 3. The actuating element 14 is guided in a linearly displaceable manner on the insulating material housing 2.

In this embodiment of the spring-loaded terminal connection 1, not only one actuating element 14 can be present on one side of the clamping spring 3. An embodiment is also conceivable in which two actuating elements 14 are arranged opposite one another to form a free space for receiving the clamping spring 3 on both sides next to the clamping spring 3. The narrow edges of the contact leg 5 and the clamping leg 9 then each adjoin an actuating element 14.

However, it is also conceivable that the actuating element 14 is not arranged laterally next to the clamping spring 3. It can also be arranged in some other way adjacent to the clamping spring 3, such as, for example, the clamping spring 3 upstream or downstream in the conductor insertion direction L.

In any case, it is structurally designed in such a way that the clamping leg 9 can be moved by linear displacement of the actuating element 14. The linear displacement of the actuating element 14 is brought about by the actuating lever 18 which is pivotably connected to the actuating element 14.

In this exemplary embodiment it can also be seen that the bearing surface 22 merges into a surface section in the form of a stop surface 24 which protrudes from the bearing surface 22. This stop surface 24 is arranged in the pivoting direction of the actuating lever 18 towards the open position in such a way that the pressure arm section 21 can be guided past at least the connecting line between the pivot bearing 19 and the contact of the actuating element 14 on the actuating section 15 of the clamping spring 3 and only abuts the stop surface 24 in the pivoting direction behind this connecting line in order to prevent further pivoting and the actuating lever 18 in this To keep over-center position. In the illustrated embodiment, an over-center position is ensured in any case if the pressure arm section 21 has passed the connecting line leading through the pivot bearing 19 and aligned in actuation direction B and the stop surface 24 is arranged behind this connecting line in the pivoting direction towards the open position. This connecting line is aligned parallel to the direction of linear movement of the actuating element 14 and thus parallel to guide bearings, not shown, for the actuating element 14. The stop surface 24 prevents further pivoting of the actuating lever 18 and the actuating lever 18 is held in an over-center position when the clamping point is open, a force of the clamping spring 3 acting on the actuating element 14.

In the illustrated first embodiment, the pressure arm section 21 and the lever arm section 20 protrude from the common pivot bearing 19 in opposite directions from one another. The pressure arm section 21 and the lever arm section 20 are aligned with their main directions of extension (e.g. central axes) at an obtuse angle (greater than 90 °) to one another. The interior angle between the pressure arm section 21 and the lever arm section 20 can be limited, for example, to a range from 180 ° to 120 °.

Figure 2 a) shows a sketch of a second embodiment of the spring-loaded terminal connection 1. Reference can essentially be made to the above statements. The difference to the first embodiment lies in the design of the actuating lever 18. The pressure arm section 21 is located on the same side of the pivot bearing 19 as the lever arm section 20. The pressure arm section 21 and the lever arm section 20 are at an acute angle with their main directions of extension (e.g. central axes) ( less than 90 °) to each other aligned. The interior angle between pressure arm section 21 and lever arm section 20 can be limited to a range of 10 ° to 90 °, for example.

In the in Figure 2 a) The open position shown, the pressure arm section 21 is then aligned from the pivot bearing 19 to the support surface 22 and rests on the support surface 22. The pressure arm section 21 is then positioned laterally adjacent to the actuating element 14. This corresponds to the alignment in the first exemplary embodiment and leads to the opening of the clamping spring 3.

Figure 2 b) shows a sketch of the second embodiment of the spring-loaded terminal connection 1 in the closed position. By pivoting the actuating lever 18, the pressure arm section 21 is oriented opposite to the conductor insertion direction L, pointing towards the electrical conductor 8 to be inserted. The lever arm section 20 protrudes upward away from the insulating housing 2, as is the case in the first exemplary embodiment in the open position ( Figure 1 a) .

A stop surface 24, not shown, can optionally be provided, as in the first exemplary embodiment, which then protrudes from the support surface 22 only spatially offset on the opposite side of the pivot bearing 19, for example in the space above the finger 17.

The clamping spring 3 is actuated by pivoting the actuating lever 18 in the first exemplary embodiment by exerting a tensile force on the lever arm section 20 and in the second exemplary embodiment by exerting a compressive force on the lever arm section 20.

Figure 3 a) shows a modification of the Figures 1 a) and 1 b ) shown first embodiment of the spring-loaded terminal connection 1. It becomes clear that the actuating lever 18 is arranged in a mirrored manner so that the lever arm section is oriented in the conductor insertion direction L in the closed position. Here too, actuation takes place by exerting a tensile force on the actuating lever 18. A stop surface 24, not shown, can, as in FIG The first exemplary embodiment can optionally be provided, which then correspondingly protrudes from the support surface 22 on the opposite side approximately in the space above the finger 17.

Figure 3 b) shows a modification of the Figures 2 a) and 2 B ) shown second exemplary embodiment of the spring-loaded terminal connection 1. It is clear that the actuating lever 18 is arranged in a mirrored manner, so that the lever arm section is oriented in the open position in the conductor insertion direction L. Here too, actuation takes place by exerting a tensile force on the actuating lever 18. A stop surface 24, not shown, can optionally be provided, as in the first exemplary embodiment.

Figure 4 shows a perspective view of a clamping spring 3 which is suitable for the spring-loaded terminal connection 1 described above and which is suspended with its contact leg 5 in the busbar 4. For this purpose, a holding frame 6 with a holding opening 25 protrudes from the support section 7 of the busbar 4. The free end of the contact leg 5 dips into this holding opening 25 in order to fix the clamping spring 3 in its position on the busbar 4.

A spring bow 13 connects to the contact leg 5 and merges into the clamping leg 9. The clamping leg 9 has a clamping tongue 26 which has the clamping edge 10 at its free end. Furthermore, a frame element 27 is connected to the clamping leg 9. This frame element 27 has two side webs 28a, 28b which protrude from the clamping leg 9 and are designed integrally therewith, which can optionally be connected to one another at their end by a transverse web 29. The frame element 27 provides an actuation section on which an actuation element 14 can exert an actuation force. The transverse web 29 can be omitted if the side webs 28a, 28b are suitably dimensioned. It becomes clear that the transverse web 29 is positioned downstream of the clamping edge 10 in the conductor insertion direction L. In the rest position shown, the transverse web 29 can rest on the busbar 4, just like the clamping edge 10 of the clamping tongue 26.

It can also be seen that a contact edge 30 is formed on the busbar 4. The clamping edge 10 of the clamping tongue 26 is oriented in such a way that, together with this contact edge 30, it forms a clamping point for clamping an electrical conductor 8, so that the clamping force of the clamping spring 3 is concentrated on the contact edge 30.

In the illustrated embodiment, a plug contact socket 32 is formed on the busbar 4 by two fork tongues 31a, 31b.

Figure 5 a) shows a third embodiment of a spring-loaded terminal connection 1 with an insulating housing 2.

In this exemplary embodiment, a separate operating tool, such as a screwdriver, is provided as the operating lever 33 and can be inserted into a free space 34 in the insertion direction E. By pivoting the actuating lever 33 designed as an actuating tool, as indicated by the actuating lever 33 sketched in two positions and the arrow, the actuating element 35 can then be moved linearly in the insulating material housing 2 in order to open the clamping point.

The conductor insertion channel 36 can be seen in the insulating material housing 2, through which an electrical conductor 8 can be guided in the conductor insertion direction L into the interior of the insulating material housing 2. This is still relatively large, but can have a reduced cross-section by engaging a cover part (not shown) with a conductor guide opening made therein.

Figure 5 b) FIG. 11 shows a perspective rear view of the spring-loaded terminal connection 1 from FIG Figure 5 a) . A rear plug opening 37 for receiving a plug connector can now be seen, which leads to the plug contact socket 32.

The structure of the spring-loaded terminal connection 1 is shown in the sectional views with FIG Figure 6a ) in side view and the Figure 6 b) clearer in the perspective view. It can be seen that the actuating element 35 has a bearing surface 38 which lies opposite a bearing surface 39 of the insulating material housing 2 in the free space 34. The support surface 39 forms a pivot point D, indicated by the arrow, for the actuating tool (ie the actuating lever 33), which rests there on the insulating material housing 2. The opposite bearing surface 38 of the actuating element 35 forms a counter-bearing on which the actuating tool slides when pivoted in the direction of the insulating material housing 2. The actuating element 35 is displaced linearly upward in actuating direction B in order to move the clamping leg 9 of the clamping spring 3 (not shown) and to open the clamping point for clamping an electrical conductor 8 or for removing a clamped electrical conductor 8.

It can be seen that the actuating element 35 protrudes into the interior of the insulating material housing 2 and has a finger 40 at its end. This engages under an actuating section (not shown) of a clamping spring (not shown).

This actuation section can, for example, be a tab protruding laterally from the clamping shank 9.

It is also clear that the bearing surface 38 of the actuating element 35 has a curved path shape pointing in the direction of the opposite bearing surface 39. It is also clear that the effectively effective bearing surface 38 is arranged offset in the direction of extension of the operating tool (i.e. the operating lever 33) or its insertion direction E relative to the bearing surface 39 of the insulating housing 2.

Figure 7 a) leaves out the spring-loaded terminal connection 1 Figures 5 a), 5b ), 6a ) and 6 b ) in the open position in the side sectional view and Figure 7 b) recognize in the perspective sectional view. It becomes clear that the operating tool (Actuating lever 33) is now pivoted down in the direction of the insulating housing 2. In this case, the actuating element 35 is now guided linearly out of the insulating material housing 2 to such an extent that the actuating tool rests on a resting surface 41 following the bearing surface 38.

It is also clear that the operating tool (operating lever 33) is inserted into the free space 34 delimited by the bearing surface 39 and the bearing surface 38. The free space 34 increases in the vertical direction (ie in the actuation direction B) the further the actuation lever 33 is inserted between the actuation element 35 and the insulating material housing 2. It is also clear that the actuating element 35 has two guide walls 42 which are spaced apart between them for receiving the actuating lever 33 and which are mounted linearly displaceably in the insulating material housing 2. At least one of the guide walls 42 has at its free end a finger 39 which the actuating section 15 of the clamping leg 9 (not shown, but comparable to Figure 1 a) ) reaches under. This actuating section 15 can also be made through the side webs 28 a, 28 b of the exemplary embodiment Figure 4 or provided by the clamping tongue 26.

It is clear that the free space 34 is designed as a channel pointing obliquely into the insulating material housing 2 and adapted to the width of an actuating lever 33 designed as an actuating tool. This channel widens when the actuating element 35 is displaced linearly. The free space 34 has a step 43 on its bottom, which is opposite the resting surface 41. In the open position according to Figure 7 a) and 7 b ) the operating tool can then be inserted into the free space 34 as far as shown that the free end of the operating tool rests on the step 43 and the resting surface 41 acts on the operating tool on the opposite side. The clamping spring 3, not shown, exerts a spring force on the actuating element 35 via the support of the actuating section 15 of the clamping spring 3 on the finger 40, with which the actuating tool (ie the actuating lever 33) is clamped in the position shown.

The ones in the Figures 5 a) to 7 b) In the third embodiment shown, a modification is also conceivable in that the operating lever 33 shown is not a separate part, but is designed as a lever arm pivotably mounted on the insulating material housing.

In the embodiments described above, the lever arm section 20 or the actuating lever 33 designed as an actuating tool can point towards the conductor 8 to be clamped or away from it. Both variants can be implemented in the same way, since the linear guide of the actuating element 14, 35 is independent of this.

The in Figure 8 The spring-loaded terminal connection 1 shown has an insulating material housing 2 in which the further elements including the busbar 4 and the clamping spring 3 are arranged and are therefore shown in the illustrations in FIG Figure 8 are not visible. The spring-loaded terminal connection 1 has an actuating lever 18 which is mounted on an actuating element 14 via a pivot bearing 19. The actuating element 14 can in particular be shaped similarly to that based on FIG Figures 5 a), 5 b ) described actuating element 35. The actuating lever 18 in turn has the lever arm portion 20, via which it can be operated manually. The insulating material housing 2 has a conductor entry channel 36 into which an electrical conductor can be inserted.

The Figure 8 shows the spring-loaded terminal connection with the actuating lever 18 in the closed position (Figure a), which forms the one end position of the pivoting movement of the actuating lever 18. In Figure b, the actuating lever is pivoted into the open position, which forms the other end position of the pivoting movement of the actuating lever 18. In Figure c it is shown that the actuating lever 18 is pivoted into an overpressure position in that the actuating lever is pivoted further beyond the end position, which corresponds to the closed position.

The Figure 9 shows the spring clamp connection according to Figure 8 in a lateral sectional view, the operating lever 18 in the open position is located. In particular, the clamping spring 3 arranged in the insulating material housing 2 with the clamping leg 9, the spring bow 13 and the contact leg 5 can be seen. The contact leg 5 is fastened to a holding frame 6 of the busbar 4. Since the actuating lever 18 is in the open position, the clamping leg 9 is deflected upwards via the support surface 39 of the actuating element 14, so that the clamping edge of the clamping leg 9 does not rest on the support section 7 of the busbar 4.

The actuating lever 18 has a bearing surface which extends over a first section 44 to a second section 45 running at an angle thereto. If the actuating lever 18 is in the closed position, the first section 44 of the bearing surface rests on the insulating material housing 2. As can be seen, the lever 18 is supported in the open position via the second section 45 of the bearing surface on the insulating material housing 2 and is thereby loaded by the force of the clamping spring 3 with respect to the insulating material housing 2.

In the Figure 9 it can also be seen that the area in which the actuating lever 18 rests on the insulating material housing 2 in the open position is followed by an obliquely extending overpressure contour 46 on the insulating material housing 2. If the operating lever 18 is in the open position ( Figure 9 ), the overpressure contour 46 forms a mechanical stop through which a user feels that the actuating lever is in its end position. In the embodiment of the spring-loaded terminal connection shown here, overpressure is possible.

The Figure 10 shows the spring-loaded terminal connection with the actuating lever 18 in the overpressure position. As can be seen, the second section 45 of the bearing surface of the actuating lever 18 has also overcome the overpressure section 46 and rests on the insulating material housing 2 at a point located behind it. From this overpressure position, the actuation lever 18 can easily be moved back into the open position or the closed position without the actuation lever 18 being damaged or loosened.

The Figure 11 shows a further embodiment of the spring-loaded terminal connection, which corresponds to the previously explained embodiment with regard to the actuating lever 18 and the possibility of overpressing it. For the sake of clarity, the clamping spring 3 and, for the most part, the busbar 4 are not shown in this illustration, so that the position of the bearing surface 39 of the actuating element 14 is particularly clear, which, corresponding to the actuating section 15, has a driver for the clamping section 9 or an actuating section of the clamping spring 3 formed thereon forms.

It can also be seen that the spring-loaded terminal connection can be designed with a plug contact socket 32 protruding from the insulating material housing 2 with fork tongues 31a, 31b, which can be molded onto the holding frame 6 of the busbar 4. A contact pin 47 can be inserted into this plug contact socket 32. List of reference symbols Spring clamp connection 1 Insulated housing 2 Clamp spring 3 Busbar 4th Contact leg 5 Holding frame 6th Support section 7th electrical conductor 8th Clamp leg 9 Clamping edge 10 stripped end 11 Conductor feed-through opening 12th Spring bow 13th Actuator 14th Operating section 15th Guide wall 16 finger 17th Operating lever 18, 33 Swivel bearing 19th Lever arm section 20th Pressure arm section 21 Support surface 22nd Support contour 23 Stop surface 24 Holding opening 25th Clamping tongue 26th Frame element 27 Side bars 28a, 28b Crossbar 29 Contact edge 30th Fork tongues 31a, 31b Plug contact socket 32 free space 34 Actuator 35 Conductor entry channel 36 Plug-in opening 37 storage area 38 Support surface 39 finger 40 Resting area 41 Guide walls 42 step 43 first section 44 second part 45 Overpressure contour 46 Contact pin 47 Actuation direction B. pivot point D. Insertion direction E. Conductor insertion direction L.

Claims (12)

1. Spring-loaded clamping terminal (1) for clamping an electrical conductor (8), the spring-loaded clamping terminal (1) having at least one clamping spring (3) for clamping the electrical conductor (8) to the spring-loaded clamping terminal (1) and at least one pivotable actuating lever (18) for actuating the clamping spring (3), the actuating lever (18) being movable between an open position, in which a conductor clamping point formed with the clamping spring (3) is open, and a closed position, in which the clamping point is closed, the spring-loaded clamping terminal (1) having an actuating element (14, 35) which can be actuated by the pivotable actuating lever (18), characterized in that

   a) the actuating element (14, 35) is designed as a substantially linearly displaceable tension element, by means of which, when the actuating lever (18) is pivoted into the open position, the clamping point can be opened by means of a tensile force acting on the clamping spring (3), the actuating lever (18) having a bearing contour (23) for forming a sliding bearing with the bearing surface (22) of the insulating material housing (2)
   and/or

   b) the open position and the closed position form end positions of the pivoting movement of the actuating lever (18), at which the actuating lever (18) comes to rest against a mechanical stop, the actuating lever (18) being pivotable beyond at least one of the end positions into an overpressure position without parts of the spring force clamping connection (1) being damaged in the process or the actuating lever (3) becoming detached from the spring-loaded clamping terminal (1).
2. Spring-loaded clamping terminal (1) according to claim 1, for clamping an electrical conductor (8), comprising an insulating material housing (2), a bus bar (4) and a clamping spring (3) having a contact leg (5), a spring bend (13), a clamping leg (9) and an actuating portion (15), wherein the clamping leg (9) has a clamping edge (10) and the clamping edge (10) forms with the bus bar (4) a clamping point for clamping the electrical conductor (8) between the clamping edge (10) and the bus bar (4), and with an actuating element (14, 35) which is movably mounted in the insulating material housing (2) and is designed to apply force to the actuating section (15), characterized in that the actuating element (14, 35) is mounted linearly displaceably in the insulating material housing (2) and extends from the actuating section (15) of the clamping spring (3) beyond a plane spanned by the bearing surface of the contact leg (5) on the bus bar (4) or the insulating material housing (2), wherein the actuating element (14, 35) is designed to apply force to the actuating section (15) of the clamping spring (3) on the side of the actuating section (15) facing away from the bearing surface of the contact leg (5) on the conductor rail (4).
3. Spring-loaded clamping terminal (1) according to claim 1 or 2, characterized in that an actuating lever (18), which is pivotably mounted on the spring-loaded clamping terminal, is mounted on a bearing section of the actuating element (14), and the insulating material housing (2) has a bearing surface (22) for the actuating lever (18), the bearing section and the bearing surface (22) being matched to one another in such a way that the actuating element (14) can be displaced linearly by pivoting the actuating lever (18), which is supported on the bearing surface (22) of the insulating material housing (2) and is counter-supported on the bearing section of the actuating element (14).
4. Spring-loaded clamping terminal (1) according to claim 3, characterized in that the actuating lever (18) is arranged with a pivot bearing (19) on the actuating element (14).
5. Spring-loaded clamping terminal (1) according to claim 1 or 2, characterized in that the insulating material housing (2) has a bearing surface (39) for an actuating lever (33) and the actuating element (35) has a bearing surface (38) opposite the bearing surface (39) of the insulating material housing (2), in that a free space for receiving a section of the actuating lever (33) is present between the bearing surface (39) of the insulating material housing (2) and the bearing surface (38) of the actuating element (35), and in that the actuating lever (33) is an actuating tool which can be introduced into the free space (34), the bearing surface (39) and the bearing surface (38) being offset with respect to one another in the direction of extension (E) of the actuating tool introduced into the free space (34).
6. Spring-loaded clamping terminal (1) according to one of claims 1 to 5, characterized in that the actuating lever (18, 33) is aligned facing the electrical conductor (8) to be clamped.
7. Spring-loaded clamping terminal (1) according to any one of the preceding claims, characterized in that the actuating element (14, 35) has a guide wall (16, 42) extending laterally adjacent the clamping spring (3) and linearly displaceably mounted on the insulating material housing (2) and a finger (17, 40) extending from the guide wall (16, 42) below the actuating portion (15).
8. Spring-loaded clamping terminal (1) according to any one of the preceding claims, characterized in that the actuating portion (15) of the clamping spring (3) is formed as a frame member (27) having a side web (28a) provided with the clamping leg (9) and a transverse web (29) provided on the side web, wherein a clamping tongue (26) provided with the clamping edge (10) projects from the clamping leg (9) next to the side web (28a) and the transverse web (29) is positioned upstream or downstream of the clamping edge (10) in the insertion direction (E).
9. Spring-loaded clamping terminal according to one of claims 1 to 8, characterized in that the spring-loaded clamping terminal (1) has an overpressure contour (46) formed on the insulating material housing (2) or another part of the spring-loaded clamping terminal (1), along which the bearing contour (44, 45) of the actuating lever (18) slides when the actuating lever (18) is moved into the overpressure position.
10. Spring-loaded clamping terminal according to one of the preceding claims, characterized in that the actuating lever (18) is fixed to a retaining part of the spring-loaded clamping terminal and cannot be detached therefrom in a non-destructive manner.
11. Spring-loaded clamping terminal according to the preceding claim, characterized in that the actuating lever (18) is fastened to a holding part of the spring-loaded clamping terminal (1) via a pivot bearing (19), the actuating lever (18) having bearing elements of the pivot bearing (19) on the lever side and the holding part having bearing elements of the pivot bearing (19) on the holding part side, the bearing elements on the holding part side being integrally formed directly around the bearing elements on the lever side or on the bearing elements on the lever side during manufacture.
12. Method for producing a spring-loaded clamping terminal (1) according to one of the preceding claims 1 to 11, wherein the spring-loaded clamping terminal (1) has at least one clamping spring (3) for clamping the electrical conductor (8) to the spring-loaded clamping terminal (1) and at least one pivotable actuating lever (18) for actuating the clamping spring (3), which lever is fastened to a holding part of the spring-loaded clamping terminal (1) via a pivot bearing (19), having the steps:

    a) Manufacture of the actuating lever (18) with bearing elements of the pivot bearing (19) on the lever side,

    b) Manufacturing the retaining part of the spring-loaded clamping terminal (1), on which the actuating lever (18) is mounted, by forming the retaining part with retaining part-side bearing elements of the pivot bearing (19) around the lever-side bearing elements of the pivot bearing (19), so that the lever-side bearing elements of the pivot bearing (19) are received by the retaining part-side bearing elements of the pivot bearing (19) during the manufacturing process of the retaining part,

    c) Completing the spring-loaded clamping terminal (1) with the assembly consisting of the actuating lever (18) and the retaining part of the spring-loaded clamping terminal (1), to which the actuating lever (18) is attached, as well as the other elements of the spring-loaded clamping terminal (1) including the clamping spring (3).

Images