Wiring terminal

Abstract

The invention relates to a connection terminal having a spring-force clamping connection with a busbar and a clamping spring for connecting an electrical conductor to the busbar by means of the clamping spring, the connection terminal having an operating element which acts on an operating section of the clamping spring, the invention relates to a clamping spring for displacing a clamping leg of the clamping spring from a clamping position into an open position. The operating element has a first pressing member section with a first operating profile and a second pressing member section with a second operating profile. The operating section of the clamping spring has a first active contour and a second active contour, and the operating element is configured to displace the clamping leg of the clamping spring by a first displacement displacement when the operating element is displaced by a first operating displacement by the interaction of the first operating contour and the first active contour, and to displace the clamping leg by a second displacement displacement when the operating element is displaced by a second operating displacement by the interaction of the second operating contour and the second active contour. And displacing the clamping leg of the clamping spring by a second displacement displacement when the operating element is displaced by the second operating profile and the second acting profile by a second operating displacement.

Description

Technical Field

[0001] The invention relates to a connecting terminal with a spring force clamping connection. Background Art

[0002] In conductor connection technology, connecting terminals with spring force clamping connections are known. Spring force clamping connections are electromechanical conductor connections with clamping springs, by means of which an electrical conductor can be clamped to a busbar of a connecting terminal by means of spring force. By means of spring force clamping connections, electrical conductors can be connected easily and with little effort and can be contacted reliably and can be released again by corresponding actuation of the spring force clamping connection.

[0003] In order to operate the spring-force clamping connection, it is known to arrange a mechanical operating element, such as an operating lever or an operating lever, at the terminal, which can move the clamping legs of the clamping spring from a clamping position into an open position in order to simplify the introduction of an electrical conductor into the terminal or to release a connected electrical conductor in the area of ​​the clamping point.

[0004] In practice, it is desirable to provide a terminal block that is as small and compact as possible, in order to be able to connect electrical lines even in confined space conditions. In addition, it is desirable to operate the terminal block in a simple and comfortable manner. Furthermore, the terminal block should be designed to be as robust and reliable as possible. The simplest possible and still effective operation of the terminal block with low force expenditure and a compact design is a constructional challenge with a high potential for further development. Summary of the invention

[0005] The invention is based on the object of providing a connecting terminal with an improved actuating mechanism which, while being compact in design, allows efficient actuation of a spring-force clamping terminal with little effort.

[0006] This object is achieved by means of the connecting terminal according to the invention. Advantageous embodiments are apparent from the description and the drawings.

[0007] A connecting terminal with a spring force clamping connection is proposed, wherein the spring force clamping connection has a busbar and a clamping spring for connecting an electrical conductor to the busbar by means of the clamping spring, wherein the connecting terminal has an operating element that acts on an operating section of the clamping spring for moving a clamping leg of the clamping spring from a clamped position to an open position. The operating element has a first push piece section with a first operating contour and a second push piece section with a second operating contour. The operating section of the clamping spring has a first active contour and a second active contour, wherein the operating element is configured to:

[0008] - when the operating element is displaced into the first operating displacement, the clamping leg of the clamping spring is displaced into the first displacement displacement by the interaction of the first operating contour and the first action contour, and

[0009] When the operating element is displaced into the second operating path, the clamping leg of the clamping spring is displaced into the second displacement path by the interaction of the second operating contour and the second action contour.

[0010] In other words, a connecting terminal is proposed which has a multi-way operating element which, during an operating process, enables a stepwise displacement of a clamping leg of a clamping spring via an operating contour which successively engages with different engagement contours of an operating section of the clamping spring.

[0011] It is thus possible that during the operation of the operating element, a plurality of operating contours at the operating element are used in turn to operate the spring force clamping connector, so that the operating element can be compactly constructed. In the case of an operating element having only one operating contour, the operating contour must be designed in a construction so that it is suitable for displacing the clamping leg of the clamping spring over the entire required displacement displacement in cooperation with the action contour of the operating section of the clamping spring. With the proposed operating mechanism, the displacement displacement is distributed to a plurality of operating and action contours, which can act in turn over the entire operating displacement of the operating element. By using a plurality of operating and action contours, a greater displacement displacement of the clamping leg can be achieved in the case of a compact structural mode of the operating element. The terminal can also be used in narrow structural space relationships due to the compact operating mechanism. The operating element can also be operated by means of uniform force consumption over the operating displacement, so that the manipulation of the terminal is simplified. As a result, a terminal with an improved operating mechanism can be provided, which can effectively operate the spring force clamping connector with a small force consumption in a compact structural mode.

[0012] The operating element can be a translationally displaceable operating lever. In this case, the first lever section and the second lever section are arranged offset relative to one another in the direction of the translational movement of the operating lever in order to distribute the translational displacement to a plurality of operating and engagement contours.

[0013] The operating element can however also be a pivotably mounted operating lever. In this case, the first push piece section can be arranged offset from the second push piece section in the direction of movement which they describe on the corresponding curved path when the operating lever is pivoted, so as to distribute the displacement to a plurality of operating contours and action contours following the path curve. The path curves of the first and second push piece sections can here run in parallel or in parallel with each other, i.e. on a common wider curved path.

[0014] The clamping spring can be a one-piece spring component having an elastically deflectable and / or elastically deformable spring section, which is suitable for exerting a spring force on an adjacent component structure.

[0015] The clamping spring can have a resiliently deflectable clamping leg which is designed for clamping an electrical conductor to a busbar of the connecting terminal and is arranged opposite the busbar.

[0016] The clamping spring can have a supporting leg, by means of which the clamping spring can be supported on the surrounding component structure. The supporting leg can be connected to the clamping leg via a spring bow.

[0017] The clamping spring has an operating section coupled to the clamping leg, and the operating element can act on the operating section so as to displace the clamping leg with a displacement displacement via elastic displacement or deformation of the operating section, for example, to pivot the spring bow. As the displacement displacement increases, the spacing between the clamping leg and the bus bar opposite the clamping leg increases, so that an electrical conductor can be introduced or led out between the clamping leg and the bus bar. The displacement displacement of the clamping leg can be limited to a maximum displacement displacement, also referred to as a complete displacement displacement hereinafter, for example, by a clamping leg stop formed at the clamping spring. The following position of the clamping leg is referred to as an open position, in which there is sufficient spacing between the clamping leg and the bus bar so that a conductor can be introduced or led out between the clamping leg and the bus bar. The following position of the clamping leg is referred to as a clamping position, in which the clamping leg is against the bus bar or clamps the conductor to the bus bar. The bus bar can be a component formed in one piece. According to one configuration, the busbar can have a drawn-off material portion with a drawing collar, on the inner side of which the electrical conductor can be clamped by means of clamping legs of a clamping spring.

[0018] The operating element can be an operating lever for mechanically operating a spring force clamping connection, which performs a mainly translational operating movement during operation, while the operating lever, by contrast, moves mainly rotationally and pivots about a pivot axis. Thus, the operating lever can now be moved axially in the operating direction along its longitudinal axis.

[0019] The operating lever can be designed, for example, as an elongated, rod-shaped or tooth-shaped component. The longitudinal axis can be the component axis of the operating lever with the greatest extension. The translational operating direction and the longitudinal axis of the operating lever can be in the same direction.

[0020] The actuating lever can have an actuating surface at the end side for introducing an actuating force, for example manually or with the aid of a tool, so that the actuating lever can be displaced translationally. According to an embodiment, the actuating contour provided for corresponding mechanical contact with the actuating section can be arranged at the end side facing the clamping spring, which can be arranged opposite the actuating surface, for example, or at the circumference of the actuating lever between its end sides.

[0021] A first push piece section with a first actuation contour and a second push piece section with a second actuation contour can be arranged one after the other along the longitudinal axis of the actuating push piece, wherein the first push piece section is closer to the actuating section of the clamping spring than the second push piece section. During the translational movement of the actuating push piece toward the actuating section of the clamping spring, the actuating push piece passes through an actuating displacement.

[0022] The operating distance travelled by the operating element during the interaction of the first operating contour with the first active contour of the operating section is referred to as the first operating distance, and the operating distance travelled by the operating element during the interaction of the second operating contour with the second active contour of the operating section is referred to as the second operating distance.

[0023] The second operating profile can be arranged offset with respect to the first operating profile, for example radially and / or axially, wherein in particular a combination of radial offset and axial offset can achieve an advantageous spacing and a defined separation between the first and second operating profiles. In other words, in the case of radial offset, the first and second operating profiles can be arranged side by side in the width direction of the operating element, and in the case of axial offset, the first and second operating profiles can be arranged one after the other in the longitudinal direction of the operating element.

[0024] The operating element can be designed as a one-piece component, so that the first and second operating contours are designed integrally with the operating element. The operating element can have a push piece stop for limiting its translational movement in the operating direction in order to define a maximum operating path of the operating element.

[0025] The interaction of the actuating contour and the active contour can be understood to mean that the actuating contour and the active contour are in mechanical contact with each other and that the actuating contour exerts a mechanical force on the active contour, which causes a displacement of the actuating section and the clamping leg of the clamping spring coupled thereto. The actuating contour and the active contour can have contour surfaces facing each other, which, depending on the embodiment, can also slide on each other in order to enable a continuous displacement during their interaction.

[0026] According to an advantageous design, the first operating contour and the first active contour as well as the second operating contour and the second active contour can be formed in pairs that are different in shape, size and / or orientation, so that it is ensured that the first operating contour only cooperates with the first active contour and the second operating contour only cooperates with the second active contour. Alternatively or additionally, it can be provided that the first push piece section has a cross-sectional shape and / or cross-sectional size different from that of the second push piece section, and the operating section has a guide contour matched to the corresponding push piece section in the area of ​​the active contour, so that it is ensured that the first operating contour only cooperates with the first active contour and the second operating contour only cooperates with the second active contour.

[0027] The first and second active contours can be arranged, for example, one behind the other in the longitudinal direction of the actuating section of the clamping spring and one next to the other in the width direction of the actuating section. Examples of possible combinations of geometries of the actuating contour, active contour or guide contour are further explained below in conjunction with advantageous embodiments.

[0028] In principle, the number of operating contours on the operating element and the number of active contours on the operating section of the clamping spring are not limited to two, respectively, but more than two operating contours and more than two active contours can also be provided. As a result, the complete displacement of the clamping leg can be distributed over more than two partial displacements and the entire operating displacement of the operating element can be distributed over more than two partial operating displacements, so that the operation is further simplified or a larger displacement can be achieved. In other words, in principle, any number of operating stages can be achieved by the multiple operating element.

[0029] According to one embodiment, the actuating section of the clamping spring can be designed as a tension bow. As a result, the actuating section and the clamping leg of the clamping spring, which is correspondingly coupled to the actuating section, can be displaced in a simple and reliable manner by the actuating element. The tension bow can be a frame-shaped actuating section with an opening, into which the actuating element can be inserted and, by means of its actuating contour resting on the action contour of the tension bow, exert a pressure on the tension bow, which is transmitted as a tensile force to the clamping leg coupled to the tension bow and pulls the clamping leg into the open position. The tension bow can, for example, extend from the clamping leg between its free end and the spring bow.

[0030] According to a refinement of the above-mentioned embodiment, the first and second active contours of the tension bow can be designed as guide surfaces extending from the tension bow and spaced apart from each other. The guide surfaces can be, for example, material webs bent out from the tension bow, which are bent out, for example, in a direction substantially corresponding to the translation direction of the actuating lever, so that the translationally moving actuating lever is guided along the guide surfaces when passing through the actuating path.

[0031] The guide surface can be shaped, dimensioned and / or oriented such that it is adapted to the corresponding associated actuating contour. For example, a first active contour of the tension bow designed as a guide surface can have the same width and / or the same inclination relative to the longitudinal axis of the actuating element as the first actuating contour, and a second active contour of the tension bow designed as a guide surface can have the same width and / or the same inclination relative to the longitudinal axis of the actuating element as the second actuating contour.

[0032] The spacing between the first and second active contours can correspond substantially to a first displacement of the clamping leg when the first operating contour interacts with the first active contour, so that after the first displacement, the second operating contour engages with the second active contour and the second displacement can be passed through by the interaction of the two contours. The first active contour can be arranged at a transverse connection of the frame-shaped tension bow opposite the coupling at the clamping leg or form such a transverse connection. The second active contour can be arranged between the coupling and the transverse connection of the tension bow and, for example, extend as separate guide surfaces from the lateral frame webs of the tension bow.

[0033] Alternatively or additionally, the tension bow can have: a first joining area, which has a first guide contour for a first push-piece section of an operating element; and a second joining area, which has a second guide contour for a second push-piece section of an operating element. The guide contours of the first and second joining areas can be configured differently and matched to the cross-sectional shape and / or cross-sectional size of the corresponding associated push-piece sections. The joining areas can be connected to each other and jointly form an opening within the frame-shaped tension bow. By providing separate joining areas for the first and second push-piece sections, which in particular have guide contours matched to the push-piece sections, it is possible to predefine and control the structure so that the first operating contour of the operating element interacts with the first active contour of the operating section, and the second operating contour of the operating element interacts with the second active contour of the operating section.

[0034] According to an improved solution of the above-mentioned embodiment, the first joining area can have a smaller cross-sectional area than the second joining area, and the first pressing piece section can have a smaller cross-sectional area than the second pressing piece section. As a result, the joining area can be matched to the different cross-sectional sizes of the associated pressing piece sections, and the graded displacement of the clamping legs can be controlled by matching the geometric shapes. For example, the first joining area can form a guide contour, which corresponds to the cross-sectional shape or circumferential contour of the first pressing piece section, so that it can sink into the first joining area. The second joining area can, for example, form a stepped widening relative to the first joining area. The second pressing piece section of the operating element can have a matching cross-sectional widening relative to the first pressing piece section, through which the second pressing piece section can sink into the widened second joining area, but cannot sink into the first joining area. In other words, the narrow first push piece section can engage in the narrow gap of the actuating section of the clamping spring and deflect the clamping leg by a first displacement, and the wide push piece section can engage in the wide gap of the actuating section of the clamping spring and deflect the clamping leg by a second displacement. The operating element can perform a continuous operating movement.

[0035] According to one embodiment, the first operating profile and / or the second operating profile of the operating element can be configured as a ramp surface. The ramp surface can form an inclined plane with respect to the displacement direction of the operating element during operation, that is, a plane inclined with respect to the translation direction of the operating push piece or with respect to the rotation direction of the operating lever. By configuring the operating profile as a ramp surface, a soft impact of the operating profile at the action profile of the operating section and a gradual displacement of the clamping leg via the operating section can be achieved. The ramp surface can extend obliquely relative to the longitudinal axis of the operating element. In other words, the first and / or second operating profile can be arranged obliquely and extended relative to the longitudinal extension of the operating element. The push piece section can have a wedge shape in the region of the first and / or second operating profile, wherein the inclined surface of the wedge constitutes the ramp surface. The ramp surface can, for example, be directed toward the guide surface of the operating section configured as a tension bow. The ramp surface causes a gradual displacement of the clamping leg by introducing pressure into the action profile of the operating section and transmitting the tension to the clamping leg accordingly. If the first actuating contour and the second actuating contour of the actuating element are designed as ramp surfaces, a very narrow actuating element can be provided, wherein the actuating contours, by their interaction with the active contours of the actuating section in sequence during actuation, enable multiple displacements of the clamping leg. The spacing between the first and second actuating contours can correspond at least to the pressure piece width at the widest point of the wedge shape of the first pressure piece section, so that during a first actuating displacement of the actuating element the clamping leg can be displaced by the pressure piece width at the widest point of the wedge shape of the first pressure piece section as a first displacement displacement and subsequently by the pressure piece width at the widest point of the wedge shape of the second pressure piece section as a second displacement displacement.

[0036] If the first operating profile and the second operating profile of the operating element are configured as ramp surfaces, it can be proposed that the corresponding inclination angles of the first and second operating profiles configured as ramp surfaces relative to the longitudinal axis of the operating element are different from each other. For example, the first operating profile can have a greater inclination relative to the longitudinal axis of the operating element than the second operating profile, or vice versa. Thus, different inclined ramp surfaces are provided so that different force relationships can be achieved during the first and second operating displacements of the operating element, which can be used, for example, to deflect the clamping leg more easily toward the direction of the open position of the clamping leg when the spring reaction force increases. The inclination angle of the ramp surface can define the slope of the ramp. The slope can be continuous or also change along the ramp surface, for example increase. The slope of the ramp of the first and second operating profiles can be designed according to a design scheme so that the force consumption to be applied at the operating element and / or the operating force transmitted to the clamping leg is substantially uniform over the entire operating displacement of the operating element. The first operating profile can point in the same direction as the second operating profile.

[0037] According to one embodiment, the first operating contour can form an end face of the operating element. The end face is located at the free end of the operating element, which is particularly configured as an elongated extended component, on the end side and can, for example, be opposite to the other end side of the operating element configured as an operating face. The first operating contour can, as an end face, hit the operating section of the clamping spring as a first face when the operating element is translated in the operating direction and act on the first action contour of the operating section. The end face can form a vertical transverse face or an inclined ramp face of the operating element according to the embodiment. If the end face of the operating element is configured as the first operating contour, a compact structural form of the operating element can be provided.

[0038] According to one embodiment, the second operating profile can be staggered with the first operating profile in a step-like manner. Thus, a second operating profile that is limitedly retracted relative to the first operating profile can be formed, and the second active profile of the operating section can be geometrically matched to the second operating profile. The second operating profile can protrude laterally relative to the first operating profile in order to form a step, wherein the step surface can form the second operating profile. The step surface can form a vertical transverse surface or an inclined ramp surface of the operating element at its circumference according to the embodiment. Through the step-like staggering, the operating element can contain an asymmetric shape, which is used to control the operation of the clamping leg via the first and second push-piece sections of the operating element, for example, by correspondingly matching the asymmetric shape of the engagement area of ​​the operating section of the clamping spring that is formed as a tension bow. With the help of the asymmetric shape, an even more compact and slender operating element can be provided. If the first and second operating profiles are formed as ramp surfaces, the operating element can have two stepped inclined operating surfaces in width, which act together with the mating surfaces of different widths as the active profile at the operating section of the clamping spring.

[0039] According to one embodiment, the operating element can have two second operating contours that are offset from the first operating contour in a stepped manner on opposite sides of the first operating contour. This allows a more uniform force transmission from the second operating contour to the second effective contour. In addition, the operating element can thereby have a symmetrical shape with a cross-sectional widening at the transition from the first push piece section to the second push piece section, which is used, for example, for controlling the operation of the clamping leg via the first and second push piece sections of the operating element via a correspondingly matched symmetrical shape of a cross-sectional widening of the engagement region of the operating section of the clamping spring that is designed as a tension bow.

[0040] The effective contour of the operating section, which is designed, for example, as a guide surface, can be matched to a single protruding step or two opposite steps of the second operating contour, for example as a single guide surface on one side of the operating section or as separate guide surfaces on two opposite sides of the operating section.

[0041] According to one embodiment, the busbar and / or the clamping spring can have a guide section on which the operating element can slide during its displacement. As a result, the operating lever can be additionally stabilized and guided during the operating process. The busbar can, for example, have a material tongue bent out below the operating section of the clamping spring, which forms the guide section. The busbar can also have a support section on which the support leg of the clamping spring is supported, wherein the side of the support section facing away from the support leg can have a guide section for the operating element. It is also conceivable that the operating element slides on the support leg of the clamping spring, so that the guide section can be arranged on the support leg.

[0042] According to one embodiment, the spring force clamping connector can have a reset mechanism, which is configured to automatically displace the clamping leg from the open position to the clamping position when the wire is introduced into the terminal. In order to first keep the clamping spring for resetting in the open position, it is necessary to form a retaining contour or an additional retaining element for a shape-fitting lock at least at the clamping spring. By means of a reset mechanism that can be triggered by the introduced electrical wire, another active operation process of the user of the terminal for returning the clamping leg to the clamping position becomes dispensable, and further simplifies the manipulation of the terminal. Terminals with such a reset mechanism are also referred to as snap-in terminals, for example. The reset of the clamping leg to the clamping position can be triggered by means of such a reset mechanism, for example, by mechanical contact of the introduced wire with the trigger element. The reset of the operating element to its initial position before its operation can be caused by the reset mechanism according to the embodiment or decoupled from the reset mechanism and can be performed manually.

[0043] More generally, in conjunction with the present application, the word “a”, unless explicitly defined otherwise, should not be understood as a numeral, but rather as an indefinite article having the meaning “at least one”. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention allows for various embodiments and is explained in detail below based on an exemplary embodiment with the aid of the drawings. In a schematic manner:

[0045] Figure 1a to Figure 1c A perspective front view, a side view and a front view of an operating push piece for a connecting terminal according to a first embodiment are shown;

[0046] Figure 2a to Figure 2c A perspective front view, a side view and a front view of an operating push piece for a connecting terminal according to a second embodiment are shown;

[0047] Figure 3a to Figure 3b shows a sectional side view and a perspective front view of a terminal block in an inoperative state according to one embodiment;

[0048] Figure 3c Show according to Figure 3a to Figure 3b Side view of the individual views of the operating parts, clamping springs and busbars of the terminal;

[0049] Figure 3d Show according to Figure 3a to Figure 3b A perspective front view of a separate view of the operating element and the clamping spring of the terminal;

[0050] Figure 4a to Figure 4b Show according to Figure 3a to Figure 3b A sectional side view and a stereoscopic front view of a terminal block in a semi-operating state;

[0051] Figure 4c Show according to Figure 4a to Figure 4b Side view of the individual views of the operating parts, clamping springs and busbars of the terminal;

[0052] Figure 4d Show according to Figure 4a to Figure 4b A perspective front view of a separate view of the operating element and the clamping spring of the terminal;

[0053] Figure 5a to Figure 5b Show according to Figure 3a to Figure 3b A sectional side view and a perspective front view of the terminal block in a fully operational state;

[0054] Figure 5c Show according to Figure 5a to Figure 5b Side view of the individual views of the operating parts, clamping springs and busbars of the terminal;

[0055] Figure 5d Show according to Figure 5a to Figure 5b A perspective front view of a separate view of the operating element and the clamping spring of the terminal;

[0056] Figure 6a A side sectional view showing a second embodiment of a terminal block with a pivotable operating element in a closed position;

[0057] Figure 6b Show Figure 6a A three-dimensional diagram of the terminal block in FIG.

[0058] Figure 6c Show Figure 6a and 6b A side view of a spring force clamping connection of a terminal block with a pivotable operating element;

[0059] Figure 6d Show Figure 6c A perspective view of a spring force clamping connection with a pivotable operating element in FIG.

[0060] Figure 7a A side sectional view showing a second embodiment of a terminal block with a pivotable operating element in a partially open position;

[0061] Figure 7b Show Figure 7a A perspective view of a terminal block in a partially opened position;

[0062] Figure 7c Show Figure 7a and 7b A side view of a spring force clamping connection of a terminal block with a pivotable operating element in a partially open position;

[0063] Figure 7d Show Figure 7c A perspective view of a spring force clamping connection with a pivotable operating element in a partially open position;

[0064] Figure 8a A side sectional view showing a second embodiment of a terminal block with a pivotable operating element in an open position;

[0065] Figure 8b Show Figure 8a A perspective view of the terminal block in an open position;

[0066] Figure 8c Show Figure 8a and 8b A side view of a spring force clamping connection of a terminal block with a pivotable operating element in an open position;

[0067] Figure 8d Show Figure 8c A perspective view of a spring force clamping connection with a pivotable operating element in a partially open position;

[0068] Figure 9a A perspective view showing a connecting terminal with a pivotable operating element in a closed position without a busbar;

[0069] Figure 9b A perspective view showing a connecting terminal with a pivotable operating element in a partially open position without a busbar;

[0070] Fig.9c A perspective view showing a connecting terminal with a pivotable operating element in an open position without a busbar;

[0071] Fig.10a A side view showing a second embodiment of a terminal with a pivotable operating element in a closed position and an open retention triggering element;

[0072] Fig.10b The invention shows a pivotable operating element in a partially open position and an opening holding trigger element. Fig.10a A side view of the terminal block in FIG.

[0073] Fig.10c A clamping device with a pivotable operating element and a clamping leg locked in the open position at an open holding triggering element is shown. Fig.10a A side view of the terminal block in FIG.

[0074] Fig.11a The device is shown with a pivotable operating element in a closed position. Figure 6a A side view of the terminal block in FIG.

[0075] Fig.11b The device is shown with a pivotable operating element in a partially open position. Figure 7a A side view of the terminal block in FIG.

[0076] Fig.11c The device is shown with a pivotable operating element in the open position. Figure 8a A side view of the terminal block in FIG.

[0077] Fig.12a The device is shown with a pivotable operating element in a closed position. Figure 6a A front view of the terminal block with a cross-sectional view of the section line AA;

[0078] Figure 12b The device is shown with a pivotable operating element in a partially open position. Figure 7a A front view of the terminal block with a cross-sectional view of section line BB;

[0079] Fig.12c The device is shown with a pivotable operating element in the open position. Figure 8a A front view of the terminal block with a cross-sectional view of the section line CC;

[0080] Fig.13a A front view showing a second embodiment of an operating lever for a terminal block;

[0081] Fig.13b Show Fig.13a A side view of the operating lever in FIG.

[0082] Fig.13c Show Fig.13a and 13b A three-dimensional view of the operating lever in FIG. DETAILED DESCRIPTION

[0083] Figure 1a , 1b and 1c shows the Figure 3a to Figure 3b , 4a to Figure 4b and 5a to Figure 5b 1 shows an operating element 6 in the form of an operating lever of a connecting terminal 1 according to a first embodiment.

[0084] The actuating lever 6 is designed as an elongated, one-piece component and has a greater extension along its longitudinal axis L than in the direction of its width and depth. An actuating lever 6 is provided in the connecting terminal 1 for translational actuation along its longitudinal axis L. For actuation, the actuating lever 6 has an actuating surface 16 with a tool holder 17 at its end face, via which a comfortable actuation of the actuating lever 6 is possible, for example by applying pressure with the aid of a tool such as a screwdriver.

[0085] The actuating lever 6 has a first lever section 8 a with a first actuating contour 9 a and a second lever section 8 b with a second actuating contour 9 b .

[0086] The second operating contour 9b is offset axially in the direction of the longitudinal axis L relative to the first operating contour 9a and radially relative to the (virtual) pivot axis of the operating section 5 of the clamping spring 4, so that a defined separation exists between the operating contours 9a, 9b. The operating contours 9a, 9b are configured as ramp surfaces, which extend at inclination angles α1, α2 relative to the longitudinal axis L of the operating push piece 6. The first operating contour 9a forms an inclined end face of the operating push piece 6. The second operating contour 9b is configured as two operating contours arranged opposite to each other and protruding laterally from the first operating contour 9a, so that an operating push piece 6 with a substantially symmetrically configured operating area is provided.

[0087] The actuating lever 6 also has at least one lever stop 22 laterally for limiting its translational displacement in the connecting terminal 1 .

[0088] Figure 2a , 2b and 2c show the Figure 3a to Figure 3b , 4a to Figure 4b and 5a to Figure 5b FIG. 2 shows an actuating lever 6 of a connecting terminal 1 according to a second embodiment.

[0089] The actuating lever 6 according to the second embodiment differs from the actuating lever 6 according to the first embodiment with regard to the design of the first lever section 8 a having the first actuating contour 9 a and the second lever section 8 b having the second actuating contour.

[0090] As from Figures 2a to 2cAs can be seen in FIG. 1 , the second actuating contour 9 b is designed here as a single actuating contour which is offset in a stepped manner to the first actuating contour 9 a , so that a narrow actuating lever 6 is provided with a substantially asymmetrically designed actuating region.

[0091] Figures 3a to 3d Different views of the connecting terminal 1 are shown, wherein Figure 3c and 3d For better illustration, the component groups of the connecting terminal 1 are shown separately.

[0092] The connecting terminal 1 has a spring force clamping connection 2 for connecting an electrical conductor (not shown in detail), which can be clamped to a busbar 3 of the connecting terminal 1 by means of a clamping spring 4 .

[0093] For example, in Figure 3c As can be seen in FIG. 1 , the busbar 3 has a material drawing with a drawing collar 3 a , to the inner side of which an electrical conductor can be clamped by means of a clamping leg 7 of a clamping spring 4 .

[0094] The connecting terminal 1 has an insulating material housing 18 which accommodates a spring force clamping connection 2 and has a wire insertion opening 19, via which an electrical wire can be introduced into the spring force clamping connection 2 in the insulating material housing 18. The clamping spring 4 has a clamping leg 7 and a support leg 21, which are connected to each other via a spring bow 20. The clamping leg 7 is configured for clamping an electrical wire to the busbar 3 and can be moved for this purpose between a clamping position K and an open position O, in which a wire can be introduced between the clamping leg 7 and the busbar 3. Figures 3a to 3d In FIG. 1 , the clamping leg 7 is shown in the clamping position K.

[0095] In order to move the clamping leg 7 from the clamping position K into the open position O, a clamping leg 7 is provided in the connecting terminal 1 according to the Figures 1a to 1c , wherein the operating lever 6 according to the second embodiment can also be used in a similar manner in principle. In order to displace the clamping leg 7 from the clamping position K into the open position O, the clamping spring 4 also has an operating section 5 coupled to the clamping leg 7, on which the operating lever can act in order to displace the clamping leg 7. The operating section 5 has, for example, Figure 3c A first active contour 10a and a second active contour 10b can be seen in FIG.

[0096] The operating push piece 6 is configured to Figure 3a During the first operating displacement 11a shown, the clamping leg 7 of the clamping spring 4 is moved in a translational manner by the first operating contour 9a and the first action contour 10a. Figure 3c12a, and when translated with the second operating displacement 11b, the clamping leg 7 is displaced with the second displacement displacement 12b by the second operating contour 9b and the second active contour 10b. As a result, a multi-path compact operating lever 6 with an efficient structure is achieved, by means of which a multi-stage displacement of the clamping leg 7 can be achieved. During operation, the operating lever 6 sequentially engages with its operating contours 9a, 9b with the first and second active contours 10a, 10b in order to displace the clamping leg 7 sequentially with the displacement displacements 12a, 12b. As a result, the connecting terminal 1 can be effectively operated with a small and uniform force expenditure.

[0097] As in Figure 3c As can be seen in the figure, the actuating contours 9a, 9b and the active contours 10a, 10b have contour surfaces facing each other, which can slide on each other so that a gradual displacement of the clamping leg 7 can be achieved. The contour surfaces are shaped differently in their arrangement in order to separate the interaction of the first actuating contour 9a with the first active contour 10a and the second actuating contour 9b with the second active contour 10b from each other and to enable the control profiles to engage one another in sequence. For example, the active contour 10b is designed as a separate guide surface and is arranged closer to the side of the actuating section 5 than the more precisely centrally arranged continuous guide surface of the active contour 10a. As a result, the active contour 10a is adapted to the actuating contours 9a, 9b of the actuating lever 6, which are spaced apart from each other.

[0098] For example, in Figure 3b and 3d As can be seen in the figure, the actuating section 5 of the embodiment shown is designed as a tension bow in order to simplify the displacement of the clamping leg 7 by means of the actuating lever 6. The tension bow projects between the free end of the clamping leg 7 and the spring bow 20 of the clamping spring 4.

[0099] The active contours 10a, 10b extend from the tension bow as guide surfaces. The tension bow has a first engagement region 13a with a first guide contour 14a for the first push-piece segment 8a for operating the push-piece 6 and a second engagement region 13b with a second guide contour 14b for the second push-piece segment 8b for operating the push-piece 6. The second engagement region 13b is wider and thus has a larger cross-sectional area than the narrower first engagement region 13a. As a result, the engagement regions 13a, 13b are geometrically adapted to the push-piece segments 8a, 8b. The first push-piece segment 8a is narrower than the second push-piece segment 8b and thus has a smaller cross-sectional area than the second push-piece segment 8b.

[0100] The second joining area 13b forms a stepped widening relative to the first joining area 13a. The geometric matching of the joining areas 13a, 13b to the push-piece sections 8a, 8b ensures that the first operating contour 9a interacts with the first active contour 10 and the second operating contour 9b interacts with the second active contour 10b. By means of the operating contours 9a, 9b, which are configured as ramp surfaces and extend at inclination angles α1, α2 relative to the longitudinal axis L of the operating push-piece 6, a gentle impact of the operating contours 9a, 9b on the active contours 10a, 10b and a gradual displacement of the clamping leg 7 can be achieved. As in Figure 3a As can be seen in FIG. 1 , the busbar 3 has a guide section 15 on which the actuating lever 6 can slide during its translational displacement. Alternatively or additionally, it is also conceivable that the clamping spring 4 forms such a guide section, for example on its support leg 21 .

[0101] Figures 3a to 3d The connecting terminal 1 and the component assembly of the connecting terminal 1 are shown in an unactuated state, in which the clamping legs 7 of the clamping spring are in the clamping position K.

[0102] exist Figures 4a to 4d 1 shows the above-described connecting terminal 1 in a semi-operated state, in which the operating push piece 6 is displaced by a first operating displacement 11a and the clamping leg 7 is moved out of the clamping position K by a first displacement displacement 12a. Figure 3c and 4c It can be seen in comparison that during operation, first the first actuating contour 9 a engages with the first activation contour 10 a and, after a first actuating displacement 11 a of the actuating lever 6 , the second actuating contour 9 b engages with the second activation contour 10 b .

[0103] exist Figures 5a to 5d 1 shows the aforementioned connecting terminal 1 in a fully operated state, in which the operating push piece 6 is displaced by the second operating displacement 11b and the clamping leg 7 is moved by the second displacement displacement 12b into the open position O. In addition, Figure 5b It can be seen how the lateral push piece stop 22 of the actuating lever 6 rests on the tension bow and prevents further translation of the actuating lever 6. The clamping leg 7 can be reset from the open position O to the clamping position K, for example, by means of a reset mechanism of the connecting terminal 1, not shown in detail.

[0104] The operating principle described above can in principle be expanded to any desired number of displacement stages with other cooperating operating profiles and action profiles.

[0105] Alternatively to the operating lever shown in the embodiment, an operating element 6 with other displacement directions can be envisioned, such as a pivotably mounted operating lever in which the first and second operating contours are in a curved trajectory. An operating element 6 that can be displaced translationally by tensile loading can also be envisioned as an operating lever.

[0106] Figure 6a A side sectional view shows a second embodiment of a connecting terminal 1 with a pivotable operating element 6 in a closed position.

[0107] The connecting terminal 1 has an insulating material housing 18 with a wire insertion opening 19. A spring force clamping connector 2 having a busbar 3 and a clamping spring 4 is installed in the insulating material housing 18. The busbar 3 has an insertion opening limited by a pull-out flange 3a, into which the clamping legs 7 and the support legs 21 of the clamping spring 4 extend. The wire insertion opening 19 leads to the insertion opening. The insulating material housing 18 has a wire receiving recess 23 on the side of the busbar 3 opposite to the wire insertion opening 19, for accommodating an electrical wire inserted into the wire introduction opening 19 and inserted through the wire insertion opening of the busbar 3.

[0108] The design of the clamping spring 4 corresponds essentially to the first exemplary embodiment. An actuating section 5 projects from the clamping leg 7 and interacts with an actuating element 6 (ie, an actuating lever 25 ) pivotably mounted about a pivot axis 24 . The actuating element 6 is received in an actuating opening 26 in the insulating material housing 18 .

[0109] As shown, the pivot axis 24 can be formed by a bearing journal of the insulating material housing 18 and a bearing opening in the operating element 6. The opposite variant is also possible, with a bearing journal on the operating element 6 that is sunken into a bearing opening in the insulating material housing 18. Also conceivable is a support with an annular bearing web that is sunken into a corresponding annular bearing groove. The operating element 6 can also be supported in a floating manner, so that the pivot axis moves during the pivoting process.

[0110] The actuating lever 25 has an end stop 27, which stops at a stop contour 28 of the insulating material housing 18. The stop contour 28 is aligned with the end stop 27 and the pivot axis, so that the stop contour 28 forms a stop for the actuating lever 25 in the closed clamping position and prevents further pivoting. The stop contour 28 can be integrally formed with the insulating material housing 18 adjacent to the support leg 21.

[0111] Figure 6b Show Figure 6a A three-dimensional view of the terminal block 1 in FIG.

[0112] It can be seen that the actuating rod 25 is supported on an end wall 29 which delimits the actuating opening 26 and that the actuating end 30 of the actuating rod 25 projects from the contour of the insulating housing 18. An end stop 27 is located at the end of the actuating rod 25 opposite the actuating end 30.

[0113] Figure 6c Show Figure 6a and 6b The spring force clamping connection 2 of the connecting terminal 1 in FIG.

[0114] It can be seen that the operating lever 25 has a first operating contour 9a, which interacts with a first active contour 10a extending from the operating section 5. The first operating contour 9a is sunken into an opening of the operating section 5, which is delimited at the end by the first active contour 10a designed as a material protrusion. The operating lever 25 also has a second operating contour 9b offset from the first operating contour 9a, which interacts with a second active contour 10b of the operating section 5.

[0115] The end stop 27 is designed as a platform at the end of a narrow end section of the actuating lever 25 that protrudes from the pivot bearing 24. The first and second engagement contours 10a, 10b are also formed on the narrow end section.

[0116] Figure 6d Show Figure 6c A perspective view of a spring force clamping connection 2 with a pivotable operating element 6 is shown in FIG.

[0117] It can be seen that the narrower end section with the first actuating contour 9 a extends into the opening of the actuating section 5 next to the first acting section 10 a .

[0118] Figure 7a The side sectional view shows a second embodiment of the connecting terminal 1 with the pivotable operating element 6 in a partially open position.

[0119] It is clear that after partial pivoting of the operating lever 25 , the second operating contour 9 b engages with the second active contour 10 b at the operating section 5 .

[0120] Figure 7b Shown in partially open position Figure 7a Here, the operating lever 25 is pivoted upward and can also be further pivoted clockwise and counterclockwise in two pivoting directions.

[0121] Figure 7c A side view of a spring force clamping connection 2 is shown and Figure 7d Show Figure 7a and 7b3D view of a spring force clamping connection 2 with a pivotable operating element 6 of a connecting terminal 1 in a partially open position. Both the first operating contour 9a and the second operating contour 9b bear against the first active contour 10a and the second active contour 10b, respectively, so that the clamping leg 7 is displaced toward the support leg 21 or the operating lever 6 by means of the operating section 5 by further pivoting about the pivot axis 24 counterclockwise in the drawing.

[0122] Figure 8a A side sectional view of a second embodiment of a connecting terminal 1 with a pivotable operating element 6 is shown in an open position, and Figure 8b A stereogram is shown.

[0123] The first actuating contour 9a is pivoted as far as possible away from the opening in the actuating section 5 and is no longer engaged with the first active contour 10a. The second actuating contour 9b, however, abuts against the second active contour 10b, so that the actuating section 5 together with the clamping leg 7 engaged therewith is displaced in such a way that the clamping leg 7 abuts against the support leg 21 and the clamping point formed between the busbar 3 and the clamping edge at the free end of the clamping leg 7 for clamping an electrical conductor is opened.

[0124] Figure 8c Shown in open position Figure 8a and 8b A perspective view of a spring force clamping connection 2 of a connecting terminal 1 with a pivotable operating element 6 is shown in FIG.

[0125] Here, two mutually offset first and second actuating sections 9a, 9b can be seen at the narrower end section of the actuating lever 25 connected to the pivot bearing 24. The first actuating contour 9a is narrower than the second actuating contour 9b. Furthermore, the first actuating contour 9a is arranged behind the second actuating contour 9b when viewed in the direction from the support leg 21 to the pivot bearing 24. The first and second actuating contours 9a, 9b merge into one another in a step.

[0126] Figure 9a A perspective view of the spring force clamping connection 2 with the pivotable actuating element 6 is shown in the closed position without busbars.

[0127] It can be seen that the actuating lever 25 has a narrow end section connected to the pivot bearing 24 with an end stop 27. The end stop 27 is located adjacent to the support leg 21 in the closed position and has a contact plane. A vertical line of the contact plane intersects the spring bow 20, for example.

[0128] It is also clear that the first active contour 10a in the actuating section 5 is formed at a narrow depression at the terminal end of the opening in the actuating section 5. The first actuating contour 9a formed as a correspondingly narrow web-like projection projects into the depression and contacts the first active contour 10 formed there on the end wall.

[0129] At the transition from the wider opening to the narrower recess, the end wall there forms the second operating contour 10b. The wide section of the operating lever 25, which is connected to the first operating contour 9a with a step at the narrow tab-shaped projection, has the second operating contour 9b. The second operating contour 9b is offset from the first operating contour 9a in the direction from the first operating contour 10a to the support leg 21. On a circular trajectory about the pivot axis 24 as the center point of the circle intersecting the first and second operating contours 10a, 10b, the first and second operating contours 9a, 9b are arranged in sequence so that they contact the corresponding first and second operating contours 10a, 10b in sequence at different pivot angles during the pivoting movement.

[0130] Figure 9b A perspective view of the spring force clamping connection 2 with the pivotable operating element 6 is shown in a partially open position.

[0131] It is clear that the first actuating contour 9a interacts with the first effective contour 10a in order to act upon the displacement actuating section 5 by the force of the first effective contour 10a. The second actuating contour 9b does not yet interact with the second effective contour 10b.

[0132] Fig.9c A perspective view of the spring force clamping connection 2 with the pivotable operating element 6 is shown in the open position.

[0133] The first operating contour 9a is pivoted away from the depression with the first active contour 10a as far as possible and no longer exerts a significant force on the first active contour 10a. The second operating contour 9b now contacts the second active contour 10b so as to load the displacement operating section 5 with the force of the second active contour 10b.

[0134] Fig.10a A side view of a second embodiment of the connecting terminal 1 is shown with the pivotable operating element 6 in the closed position and the open holding triggering element 30 .

[0135] The design of the spring force clamping connection 2 and the operating element 6 is similar to the embodiment described above. In addition, a holding-open triggering element 30 is now provided.

[0136] Fig.10b The embodiment of the invention shows a pivotable operating element 6 in a partially open position and an opening holding triggering element 30. Fig.10a 3. A side view of the terminal block 1 in FIG. The opening and holding trigger element 30 is fixed to the busbar 3 or optionally to the insulating material housing 18 by means of a fastening section 31. The opening and holding trigger element extends into the wire receiving recess 23 after bending and has a locking contour 32 in the form of a locking tab extending toward the busbar 3. The locking contour can be exposed from the sheet material of the opening and holding trigger element 30 when bent. The opening and holding trigger element 30 ends with a trigger section 33, which is aligned transversely with the wire introduction opening 19 (i.e., the wire introduction channel). As a result, the electrical wire inserted into the wire introduction opening 19 hits the trigger section 33 to displace the trigger section together with the locking contour 32 engaged therewith.

[0137] Fig.10c The embodiment shows a clamping leg 7 with a pivotable operating element 6 and a clamping leg 7 locked in the open position at a locking contour 32 of an open holding triggering element 30. Fig.10a . For this purpose, the clamping leg 7 is displaced toward the support leg 21 by pivoting the actuating lever 25 and exerting a force on the actuating section 5 until the free end of the clamping leg 7 is behind the locking contour 32. The locking contour 32 thus forms a stop for the clamping leg 7, which is pressed onto the locking contour by the spring force of the clamping spring 4 and locked there.

[0138] The electrical conductor can now be inserted into the conductor insertion opening 19 and guided along the held open clamping point. It strikes the triggering section 33 and exerts a triggering force in the conductor insertion direction, which displaces the spring-elastic open holding triggering element 30 together with the locking contour 32 and unlocks the clamping leg 7. The clamping leg 7 can then freely move toward the clamping section 34 at the busbar 3 by the spring force of the clamping spring 4 and clamp the electrical conductor at the clamping edge at the free end of the clamping leg 7 and the clamping section 34.

[0139] Such a holding-open triggering element 30 can also be used in a connecting terminal 1 of the first embodiment with an operating lever or other operating element.

[0140] Fig.11a The side view shows the connecting terminal 1 with the pivotable operating element 6 in the closed position. The insulating material housing 18 can be opened laterally in order to insert the spring force clamping connection 2 with the busbar 3 , the clamping spring 4 and the operating lever 25 into the insulating material housing 18 .

[0141] Fig.11b The housing with the pivotable operating element 6 is shown in a partially open position. Figure 7a Side view of the terminal block 1 in FIG.

[0142] Fig.11c The device with the pivotable operating element is shown in the open position. Figure 8a Side view of the terminal block 1 in FIG.

[0143] from Fig.12a The pivotable operating element 6 can be seen in Figure 6a Front view of the terminal block in the closed position along the section line AA of the sectional view in FIG.

[0144] Figure 12b The device with a pivotable operating element 6 is shown. Figure 7a Front view of the terminal block in the partially opened position, with section line BB in the sectional view.

[0145] Fig.12c The device with a pivotable operating element 6 is shown. Figure 8a Front view of the terminal block in the open position with section line CC in the sectional view.

[0146] Fig.13a A front view of an operating lever 25 for a second embodiment of a connecting terminal 1 is shown. It can be seen that at the terminal end of the operating lever 25, which is opposite the operating end 30, a central tab protrudes to form a first operating contour 9a. The tab transitions into a widened section. In the transition, steps are formed on both sides next to the tab, which steps form a second operating contour 9b.

[0147] Fig.13b Show Fig.13a 25 in a side view. It is clear that there is a bearing opening 35 for the pivot bearing 24. A tab with a first actuating contour 9a and a wide section with a second actuating contour 9b offset from the first actuating contour adjoin the bearing opening.

[0148] Fig.13c Show Fig.13a and 13b 3D view of the operating lever 25 in FIG. It is clear here that the first and second operating contours 9a, 9b are arranged radially and offset from each other from the bearing opening 35. The first operating contour 9a is present on a triangular web, wherein the end side facing away from the operating end 30 can be curved.

[0149] List of reference numerals:

[0150] 1 Terminal block

[0151] 2 Spring force clamping connection

[0152] 3 Bus

[0153] 3a Pull-out flange

[0154] 4 Clamping spring

[0155] 5 Operation Section

[0156] 6 Operating elements / operating levers

[0157] 7. Tighten your legs

[0158] 8a First pressure piece section

[0159] 8b Second pressing piece section

[0160] 9a First operating profile

[0161] 9b Second operating profile

[0162] 10a First action profile

[0163] 10b Second action profile

[0164] 11a First operating displacement

[0165] 11b Second operation displacement

[0166] 12a First displacement

[0167] 12b Second displacement

[0168] 13a First bonding area

[0169] 13b Second bonding area

[0170] 14a First guide profile

[0171] 14b Second guide profile

[0172] 15 Guide section

[0173] 16 Operation surface

[0174] 17 Tool storage part

[0175] 18 Insulation material housing

[0176] 19 Wire lead-in opening

[0177] 20 Spring bow

[0178] 21 Support legs

[0179] 22 Press piece stop

[0180] 23 wire receiving recess

[0181] 24 pivot axis

[0182] 25 Operating lever

[0183] 26 Operation openings

[0184] 27 End stop

[0185] 28 stop profile

[0186] 29 end wall

[0187] 30 Operation end

[0188] 31 fixed section

[0189] 32 Locking Profile

[0190] 33 Trigger Section

[0191] 34 Clamping section

[0192] 35 Support opening

[0193] K Clamping position

[0194] L Longitudinal axis

[0195] O Open position

[0196] α1 First tilt angle

[0197] α2 Second tilt angle

Claims

1. A connecting terminal (1), comprising a spring force clamping connection (2), the spring force clamping connection having a busbar (3) and a clamping spring (4), the clamping spring being used to connect an electrical conductor to the busbar (3) by means of the clamping spring (4), wherein the connecting terminal (1) comprises an operating element (6) which acts on an operating section (5) of the clamping spring (4) for moving a clamping leg (7) of the clamping spring (4) from a clamping position (K) into an open position (O), It is characterized in that The operating element (6) has a first push piece section (8a) with a first operating contour (9a) and a second push piece section (8b) with a second operating contour (9b), and the operating section (5) of the clamping spring (4) has a first active contour (10a) and a second active contour (10b), wherein the operating element (6) is configured to: - when the operating element (6) is displaced to a first operating displacement (11a), the clamping leg (7) of the clamping spring (4) is displaced to a first displacement displacement (12a) by the cooperation of the first operating contour (9a) and the first action contour (10a), and When the operating element (6) is displaced to a second operating displacement (11b), the clamping leg (7) of the clamping spring (4) is displaced to a second displacement displacement (12b) by the cooperation of the second operating contour (9b) and the second action contour (10b).

2. The connecting terminal (1) according to claim 1, It is characterized in that The actuating section (5) of the clamping spring (4) is designed as a tension bow.

3. The connecting terminal (1) according to claim 2, It is characterized in that The first and second effective contours (10a, 10b) of the tension bow are designed as guide surfaces extending from the tension bow and spaced apart from one another.

4. The connecting terminal (1) according to claim 2 or 3, It is characterized in that The tension bow comprises: a first engagement region (13a) having a first guide contour (14a) for the first push piece section (8a) of the operating element (6); and a second engagement region (13b) having a second guide contour (14b) for the second push piece section (8b) of the operating element (6).

5. The connecting terminal (1) according to claim 4, It is characterized in that The first joining region (13a) has a smaller cross-sectional area than the second joining region (13b), and the first pressure piece section (8a) has a smaller cross-sectional area than the second pressure piece section (8b).

6. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The first operating contour (9a) and / or the second operating contour (9b) of the operating element (6) are configured as ramp surfaces.

7. The connecting terminal (1) according to claim 6, It is characterized in that The first operating profile (9a) and the second operating profile (9b) point in the same direction.

8. The connecting terminal (1) according to claim 6 or 7, It is characterized in that The first and second actuating contours (9a, 9b) designed as ramp surfaces have respective inclination angles (α1, α2) relative to the longitudinal axis (L) of the actuating element (6) that differ from one another.

9. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The first operating contour (9a) forms an end face of the operating element (6).

10. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The second operating contour (9b) is offset from the first operating contour (9a) in a step-like manner.

11. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating element (6) has two second operating contours (9b) which are offset from the first operating contour (9a) in a stepped manner on opposite sides of the first operating contour (9a).

12. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The busbar (3) and / or the clamping spring (4) have a guide section (15) on which the operating element (6) can slide during its displacement.

13. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The spring force clamping connection (2) has a reset mechanism which is configured to automatically move the clamping leg (7) from the open position (O) to the clamping position (K) when a conductor is introduced into the connecting terminal (1).

14. The connecting terminal (1) according to any one of the preceding claims, It is characterized in that The operating element (6) is a translationally displaceable operating push piece.

15. The connecting terminal (1) according to claim 14, It is characterized in that The first push piece section (8a) and the second push piece section (8b) are arranged offset from each other along the direction of the translational movement of the operating push piece.

16. The connecting terminal (1) according to claims 1 to 13, It is characterized in that The operating element (6) is a pivotably mounted operating lever (25).

17. The connecting terminal (1) according to claim 16, It is characterized in that The first push piece section (8a) and the second push piece section (8b) are arranged offset from one another in the directions of movement which they describe on corresponding curved paths when the operating lever (25) is pivoted.

Images