EP0422484B1 - Cable tapping device - Google Patents

Cable tapping device Download PDF

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Publication number
EP0422484B1
EP0422484B1 EP90118851A EP90118851A EP0422484B1 EP 0422484 B1 EP0422484 B1 EP 0422484B1 EP 90118851 A EP90118851 A EP 90118851A EP 90118851 A EP90118851 A EP 90118851A EP 0422484 B1 EP0422484 B1 EP 0422484B1
Authority
EP
European Patent Office
Prior art keywords
tooth
cable
teeth
clamping
block according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90118851A
Other languages
German (de)
French (fr)
Other versions
EP0422484A2 (en
EP0422484A3 (en
Inventor
Johannes A. Magendans
Kornelis Loppersum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bv Hollandse Apparatenfabriek Haf
Original Assignee
Bv Hollandse Apparatenfabriek Haf
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Publication date
Application filed by Bv Hollandse Apparatenfabriek Haf filed Critical Bv Hollandse Apparatenfabriek Haf
Publication of EP0422484A2 publication Critical patent/EP0422484A2/en
Publication of EP0422484A3 publication Critical patent/EP0422484A3/en
Application granted granted Critical
Publication of EP0422484B1 publication Critical patent/EP0422484B1/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type

Definitions

  • the invention relates to a cable branch terminal comprising a main cable with a terminal housing with high strength, with at least one clamping body, which is equipped with at least one row of teeth, which press into the cable core when clamped through the cable sheath of the main cable, with a bore in the clamping body for receiving the stripped end of a branch cable and with a counterpart against which the main cable is pressed, each row of teeth running transversely to the direction of the bore axis and the teeth running approximately parallel to the clamping direction.
  • Such a cable branch clamp is known.
  • the outer housing is formed by two U-shaped housing parts that are screwed together at their leg ends.
  • each U-shaped housing part there is a guide part in which two clamping bodies are accommodated, so that a total of four clamping bodies are provided are each having a central bore through which the end of a cable to be branched can be inserted;
  • the branch clamps are fixed within the clamp body using Allen screws.
  • Each clamping body has teeth at its inner end, which are each arranged in rows of three, each row running transversely to the longitudinal axis of the bore in the clamping body.
  • This clamp is essentially intended to comprise a four-core cable, with each clamp body being assigned a cable core. Wedges are located between the cables, which act as counterparts against the clamping force of the individual clamping bodies.
  • the tips of the teeth of a row are located on a circular arc, the adjacent outer teeth of two adjacent clamping bodies being at a smaller distance from the central axis of the bore than the outer teeth lying at opposite ends of the rows, so that the individual teeth of each row, with respect to the center plane of the outer housing, which runs in the direction of the clamping force effect and is oriented perpendicular to the plane spanned by the outer housing, are oriented slightly inclined inwards towards the center plane, so that the clamping bodies are only ever in a single position within the outer housing or . of the guide housing can be accommodated.
  • a cable junction terminal of the type mentioned is known from GB 1 260 423 A.
  • This clamp has four clamping bodies, each with three teeth, of which the outer tooth is the longest tooth.
  • cables whose diameter is larger than a certain minimum diameter, so that the cables are within the tooth arrangement two juxtaposed clamping bodies running in the same clamping direction.
  • the object of the invention is to improve a cable branch terminal of the type mentioned in such a way that cables with a small diameter can also be clamped.
  • This object is achieved in that the distance of the tooth end of at least one tooth located between two external teeth of each row from the central axis of the bore is greater than that of the ends of the two external teeth from the transverse central plane containing the bore axis, transverse to the clamping direction.
  • the teeth emerge from a plane running at an obtuse angle to the clamping direction or at an acute angle to the plane running transversely to the clamping direction.
  • the tooth flanks form an acute angle which is not greater than approximately 25 °.
  • the invention is applied to a cable branch terminal which has a total of four clamping bodies, two of which are in one in one U-shaped outer housing part housed guide body are used, the two outer housing parts are screwed together.
  • the area delimited by the outer circumference of the outer housing between the cable cores running in the middle and the outer housing is poured out with casting resin and accordingly possess the free legs of the U-shaped outer housing part openings which allow the casting resin to vent during the casting of the space.
  • a preferred embodiment of the invention with a total of four clamp bodies is that the counterpart for the clamp body is an intermediate wall located between two opposing clamp bodies, in which wedge-shaped strips running in a preferred manner transverse to the main cable extension are provided. These wedge-shaped strips, which press into the inside of the sheath of the individual wires, prevent the cable or the cable core from being displaced by deforming the cable sheath.
  • a guide partition or compartment wall on the cable junction terminal which engages with its ends between two adjacent clamping bodies.
  • the cable cores are kept at a distance with the partitions and the partition wall, and the partition wall also serves as a system for the cable cores to be clamped.
  • the partitions have a projection with which they engage in a groove on both sides of the partition and are guided therein.
  • the clamping body can be used for different diameters of cables. Because the second tooth of each row is longer than the first and also extends beyond the two adjacent third and fourth teeth, Either the first two teeth can be used to clamp a conductor with a thin cross-section or the third and fourth teeth can be used to clamp a conductor with a larger cross-section, with the individual clamping bodies depending on the cross-section of the cable to be clamped or the cable core to be clamped in different orientations (Rotated 180 °) are to be inserted into the guide body.
  • Grooves can then additionally be provided on the partition and / or on the intermediate wall, into which grooves the auxiliary wires assigned to the cable can be inserted.
  • the grooves are in the immediate vicinity of the cables, so that the installation of the cables and the auxiliary wires is very easy to carry out.
  • each clamp body can contact all types of cable, both triangular, sector and circular cable cores. Due to their geometric shape and length, the tooth tips are always pressed into the veins at approximately the same depth, so that approximately the same contact pressure per branch can be achieved with constant contact resistance per branch.
  • the known cable branch clamps have clamping bodies with relatively blunt teeth, as a result of which the indentation depth is less.
  • the depth of the indentation is limited by the geometry of the teeth.
  • the pointed shape of the teeth according to the invention causes a deeper penetration into the cable without the housing being subjected to higher loads.
  • the pointed teeth or the pointed tooth shape also allows rotation through 180 °.
  • the teeth are of different widths. This takes into account the different load on the teeth when they are pressed into the corresponding cables, so that, for example, the fourth tooth can be made relatively thin and narrow. Furthermore, it should be noted that due to the design of the teeth and their length, a simultaneous contact of the insulation and thus also a simultaneous pressing into the cable are brought about. It goes without saying that the larger the cable diameter, the deeper the teeth push into the cable.
  • the assembly of the cable branch clamp is as follows:
  • the cable jacket is stripped down to the insulated cable cores.
  • a mounting wedge is inserted between two cable cores in order to insert the longitudinal partition, so that there are two cores on both sides of the longitudinal partition (with four cores).
  • the transverse dividing walls can then be inserted in such a way that their projections enter the grooves in the longitudinal dividing wall.
  • auxiliary wires can be inserted into the guide grooves or the grooves on the longitudinal partition or on the transverse partition.
  • the branch cables are clamped in the clamping body, and the outer housing parts (terminal housing), clamping body housing and clamping body with contacted branch wires are assembled, the ends of the longitudinal partition wall engaging in guide grooves in the clamping body housings. Then the two outer housing parts are screwed together and this causes the teeth to be pressed into the cable wires.
  • the space between the cores and the outer housing or the two outer housing parts is then cast with casting resin, the openings in the legs serving for ventilation during casting in order to prevent air pockets.
  • a cable clamp 10 has an upper terminal housing 11 and a lower terminal housing 12, which have a U-shaped shape, with a housing web 13 and 14 and two legs 15, 16 and 17, respectively.
  • On the two upper legs 15 and 16 of the Upper clamp housing 11 are the legs 15, 16 centrally penetrating openings 19, of which only the one in the leg 15 can be seen, the opening 19 being delimited by two leg walls 20 which are spaced apart and parallel to one another, the spacing of which is chosen such that the head 21 of a bolt 22 fits through the opening 19 between the two leg walls 20 so that the bolt 22 can be inserted into a bore 23 extending in the longitudinal direction of the leg 15.
  • the same arrangement as on the left of the center line is also provided on the right of the center line on the upper terminal housing 11.
  • the leg walls 20 run in alignment with the end faces of the terminal housings 11, 12.
  • the lower terminal housing 12 has in the legs an opening 24 similar to the opening 19 with leg walls 25, and in the leg 17 a threaded bore 26 is provided which is aligned with the bore 23 in the assembled state, so that the screw 22 can be screwed into the threaded bore 26 is.
  • the lower terminal housing 12 naturally also has the same assignment of the threaded bore 26, the opening 24 and the leg walls 25 on the right leg 18.
  • the housing webs 13 and 14 each have two adjacent bores 28, of which only the bore in the terminal housing 11 shown on the left in FIG. 1 is visible.
  • a clamping body housing 29 and 30 is inserted, which in its outer contour by the legs 15, 16; 17, 18 and the webs 13 and 14 formed interior of the terminal housing 11 and 12 are adapted.
  • the clamp body housings each have a collar 31 or 32 on their side facing the inner surface of the housing web 13 or 14, which fit into the bores 28, so that the collars 31 and 32 for guiding the clamp body housings 29 and 30 within the clamp housing 11 and 12 serve.
  • the clamp body 29 and 30 have in the direction of the open side of the legs 15 and 16 - in the assembled state - open, U-shaped recesses 33 and 34 or 35 and 36, in the clamp body 37, 38 and 38 shown in Figures 6 and 7 respectively 39 and 40 are engaged.
  • the clamping bodies 37 to 40 are described in more detail below with reference to FIGS. 6 and 7 and FIGS. 8 to 10.
  • each compartment wall 43 engages in these recesses 41 and 42 and separates the two opposing clamping bodies 37 and 39 from the other opposing clamping bodies 38 and 40.
  • a pressure piece 44 and 45 which is explained in more detail in FIGS. 2 and 3, and on the side surfaces of which cables are in the clamped state.
  • FIGS. 2 and 3 show a pressure piece 44 or 45 from both sides.
  • the pressure piece 44 or 45 has an approximately rectangular shape in the tear-open area and on the one longer - side edge 46 there is a trapezoidal projection 47, whereas on the opposite longer side edge 48 there is a web 49 which runs transversely and perpendicularly to the plane of the pressure piece 44 or 45 is molded so that in the side view (see Figure 1) each pressure piece 44 and 45 has a T-shape.
  • On one surface visible in FIG.
  • the web 49 serves to fix the two pressure pieces 44 and 45 between the two legs 15/17 and 16/18; the pressure pieces 44 and 45 are guided in the region of the compartment wall 43 in that the projections 47 engage in a slot 52 which extends through the compartment wall 43.
  • the length of the projections 47 in the direction of the side edge 46 and the length of the slot 52 adapted to it is approximately the same.
  • the strips 50 and 51 are triangular in cross-section with a pointed edge that is pressed into the insulation of a main cable.
  • FIGS. 4 and 5 Reference is now made to FIGS. 4 and 5.
  • FIGS 4 and 5 show a compartment wall 43 in section and in supervision.
  • the compartment wall 43 has in its central region a centrally located wall 53, which is arranged on both sides of the wall 53, from which Wall surface of the wall 53 projecting ledges 54 is reinforced.
  • the compartment wall 43 In its total area, has a rectangular shape with longer side edges 56 and shorter side edges; the longitudinal extent of the slot 52 extends transversely to the longer side edges 56.
  • FIGS. 6 and 7 show the clamping body 38 (representative of all) in side view and in sectional view.
  • the clamping body 38 has in its basic form a cuboid body 62, which in cross-section has three mutually perpendicular side surfaces 64, 65 and 66, whereas one of the side surfaces, namely the dashed side surface 63, is inclined at an angle to the side surfaces 66 and 64 such that the two side surfaces 66 and 64 are of different sizes; the side surface 64 is larger than the side surface 66. This results in an approximately trapezoidal cross-section in cross section according to section line VII-VII.
  • the body 62 On the inclined side surface 63, four rows 67, 68, 69 and 70 of four teeth 71 to 74 are arranged side by side, and in the direction of the rows 67 to 70, the body 62 is penetrated by a longitudinal bore 75 and extends transversely to this longitudinal bore 75 , opening into the side surface 65, a threaded bore 76.
  • the longitudinal bore 75 extends transversely to the plane formed by the two terminal housings 11 and 12, so that 75 branch cables (not shown) can be inserted into these longitudinal bores .
  • Screwed into the threaded bore 76 is a clamping screw 77 which is accessible through an opening 78 which engages in the collar 31 of the clamping body housings 29 and 30. Two openings 78 are provided on each sprag housing 29, 30.
  • the teeth 71 to 74 are of different lengths and also have a different shape.
  • the tip of the first tooth 71 adjoining the side surface 64 has a distance d 1 from the central plane M, which runs parallel to the side surface 65 through the central axis of the longitudinal bore 75, the tip of the adjacent tooth 72 has a distance d 2, the distance d 1 being smaller is as the distance d2.
  • the top of the at the Tooth 72 connecting third tooth has a distance d3 and that of the fourth tooth 74 has a distance d4, measured from the side surface 63.
  • the distance d3 is smaller than the distance d1 and the distance d4 is also smaller than the distance d3.
  • the connecting line forms an acute angle to the side surface 63, since the distance of the tip of the tooth 72 from the side surface 63, measured perpendicular to the plane M, is greater than the length of the tooth 74, also measured in the same direction.
  • the tooth 73 located therebetween is accordingly even shorter, so that there is a space between the tip of the tooth 73 and the connecting line of the two tips of the teeth 72 and 74.
  • the tips of the three teeth 72 to 74 lie approximately on a circle or that the connecting lines of the teeth 72 and 73 or 73 and 74 form an obtuse angle with one another which is open in the tooth direction.
  • the tooth shape that is to say the angles which the tooth flanks form with one another, is or are different. While the two angles alpha 3 and alpha 4, which include the opposing tooth flanks of the teeth 71 and 72 with a center line M 1 which runs through the gap between the teeth 71 and 72 and which runs perpendicular to the plane M, are only slightly different for example, the same angles alpha 5 and alpha 6 in the gap between the two teeth 72 and 73 are very different, in such a way that the teeth 72 and 73 are inclined towards the side wall 64 and side surface 64.
  • the difference between the angles alpha 7 and alpha 8 that in measured in the same way as the angles alpha 3, alpha 4; alpha 5 and alpha 6, is even larger, so that the outer tooth 74 is even more inclined towards the side surface 64.
  • the angle alpha 2 of each tooth that the tooth flanks of teeth 71, 72 and 73 form with one another is greater than the angle that the tooth flanks of tooth 74 form with one another, so that tooth 74 is more acute than teeth 71 to 73.
  • the width of the teeth 71 to 74 in the area of their foot is chosen in accordance with the required strength; the two middle teeth 72 and 73 have a larger width because they are more heavily loaded when jammed, whereas the foot width of teeth 71 and 74 is significantly smaller.
  • the foot width of tooth 74 is also smaller than that of tooth 71.
  • the connecting line V71 center of the foot to the tip of the tooth 71 forms an acute angle with the side surface 64, namely the tooth 71 to the central plane, which runs parallel to the side surface 64 through the central axis of the longitudinal bore 75, around it Angle inclined; the corresponding connecting line V72 is inclined towards the side surface 64; the corresponding connecting lines V73 and V74 are also inclined towards the central plane.
  • FIGS. 8 and 9 One can see in FIGS. 8 and 9 in each case a clamping body housing 29, into which a clamping body 62 is inserted, in such a way that the teeth 71 lie adjacent to the compartment wall 43.
  • the compartment wall 43 is only shown schematically in FIGS. 8 to 11.
  • there is a round cable with corresponding insulation 81 between the clamping body 62 and the pressure piece 44 which is likewise only shown schematically as a line.
  • the two teeth 71 and 72 engage in the interior of the cable core 80, the tooth 71 between the center M80 of the cable core 80 and the compartment wall 43 and the tooth 72 - seen from the compartment wall 43 - penetrate beyond the center M80 into the cable core 80.
  • the third tooth 73 cuts the insulation 81 straight, whereas the tooth 74 is free.
  • the fact that the center point M80 lies between the two teeth 71 and 72 prevents the cable from slipping away from the compartment wall 43 to the outside - in the direction of the teeth 73 and 74.
  • Figure 9 shows the same configuration as that of Figure 8; a triangular cable 82 with a triangular cable core 83 and an insulation 84 adapted to it is provided as the cable. It can be seen that the two teeth 71 and 72 clearly press into the cable core 83, whereas the tooth 73 engages only slightly in the cable core 83. The tooth 74 still remains outside the insulation 84.
  • a triangular cable is likewise provided, the cable core 87 being acted upon by all teeth; the tooth 71 is just pressing into the cable core 87.
  • the clamping body 62 is designed such that it can be used to clamp different cable shapes with different cable cross sections. So that an optimal contact between the teeth 71 to 74 and the cable core 80, 83, 85 and 87 is generated, it is only necessary, depending on the diameter or the cross-sectional shape of the cable core 80, 83, 85 and 87, the clamping body in each case by 180 ° inserted rotated into the clamp body 29. In this way, considerable material savings are achieved: only a single clamping body is required, and the shape of the teeth 71 to 74 is also selected such that an optimal contact with an optimal current transfer can be achieved with a comparatively low clamping force.
  • the strips 50 and 51 are triangular, as already mentioned above, so that the tips of the strips 51 and 50 press somewhat into the interior of the insulation 81, 82, 86 and in this way prevent the cables from moving relative to the pressure pieces 44 and 45.
  • main cables are to be inserted between the pressure pieces 44 and 45 and the teeth of the clamping bodies 37, 38, 39 and 40 and clamped therein, whereas the branch cables are attached by clamping the branch cables in the longitudinal bores 75 of the clamp bodies 37 to 40.
  • the penetration of the teeth 71 to 74 into the interior of the cable core is brought about by the clamping screws 25 with which the two terminal housings 11, 12 are screwed together.
  • the depressions 58 and 59 are located in the immediate vicinity of the cables to be clamped and serve to accommodate auxiliary wires in the cables.
  • the cable clamp 10 is finally placed on the main wires and then shed the interior between the terminal housings; So that no air bubbles form in the inner region between the cables and the inner surfaces of the terminal housings, the openings 19 are provided in the legs 15 and 16 or 17 and 18, through which the casting resin from the space inside the terminal housings 11, 12 to the outside can come out.
  • the potting takes place of course after completion of the assembly and the jamming of the individual cables or auxiliary wires.
  • Each clamping body 37 to 40 has locking grooves 100 and 101, with which it can be locked with projections, not shown, in the clamping body housing 29, 30.

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  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)

Description

Die Erfindung betrifft eine ein Hauptkabel umfasende Kabelabzweigklemme mit einem Klemmengehäuse mit hoher Festigkeit, mit wenigstens einem Klemmkörper, der mit wenigstens einer Reihe von Zähnen ausgestattet ist, die sich beim Verklemmen durch den Kabelmantel des Hauptkabels hindurch in die Kabelseele hineindrücken, mit einer Bohrung im Klemmkörper zur Aufnahme des abisolierten Endes eines Abzweigkabels und mit einem Gegenstück, gegen welches das Hauptkabel gedrückt wird, wobei jede Reihe von Zähnen quer zur Richtung der Bohrungsachse verläuft und die Zähne angenähert parallel zur Klemmrichtung verlaufen.The invention relates to a cable branch terminal comprising a main cable with a terminal housing with high strength, with at least one clamping body, which is equipped with at least one row of teeth, which press into the cable core when clamped through the cable sheath of the main cable, with a bore in the clamping body for receiving the stripped end of a branch cable and with a counterpart against which the main cable is pressed, each row of teeth running transversely to the direction of the bore axis and the teeth running approximately parallel to the clamping direction.

Eine derartige Kabelabzweigklemme ist bekannt. Das Außengehäuse ist hierbei gebildet durch zwei U-förmige Gehäuseteile, die an ihren Schenkelenden miteinander verschraubt werden. In jedem U-förmigen Gehäuseteil befindet sich ein Führungsteil, in welchem zwei Klemmkörper untergebracht sind, so daß insgesamt vier Klemmkörper vorgesehen sind, welche jeweils eine zentrale Bohrung aufweisen, durch die das Ende eines abzuzweigenden Kabels eingeführt werden kann; mittels Imbusschrauben werden die Abzweigklemmen innerhalb des Klemmkörpers fixiert.Such a cable branch clamp is known. The outer housing is formed by two U-shaped housing parts that are screwed together at their leg ends. In each U-shaped housing part there is a guide part in which two clamping bodies are accommodated, so that a total of four clamping bodies are provided are each having a central bore through which the end of a cable to be branched can be inserted; The branch clamps are fixed within the clamp body using Allen screws.

Jeder Klemmkörper besitzt an seinem inneren Ende Zähne, die jeweils in Dreierreihen angeordnet sind, wobei jede Reihe quer zur Längsachse der Bohrung im Klemmkörper verläuft.Each clamping body has teeth at its inner end, which are each arranged in rows of three, each row running transversely to the longitudinal axis of the bore in the clamping body.

Diese Klemme ist im wesentlichen dafür gedacht, ein vieradriges Kabel zu umfassen, wobei jedem Klemmkörper jeweils eine Kabelader zugeordnet ist. Zwischen den Kabeln befinden sich dabei Keile, die als Gegenstücke gegen die Klemmkraft der einzelnen Klemmkörper wirken. Die Spitzen der Zähne einer Reihe befinden sich auf einem Kreisbogen, wobei die benachbarten äußeren Zähne zweier nebeneinander liegender Klemmkörper einen kleineren Abstand von der Mittelachse der Bohrung aufweisen, als die an entgegengesetzten Enden der Reihen liegenden äuβeren Zähne, so daß die einzelnen Zähne jeder Reihe, bezogen auf die Mittelebene des Außengehäuses, die in Richtung der Klemmkraftwirkung verläuft und senkrecht zu der durch das Außengehäuse aufgespannten Ebene ausgerichtet ist, leicht geneigt nach innen auf die Mittelebene hin orientiert sind, so daß die Klemmkörper nur immer in einer einzigen Stellung innerhalb des Außengehäuses bzw. des Führungsgehäuses untergebracht sein können.This clamp is essentially intended to comprise a four-core cable, with each clamp body being assigned a cable core. Wedges are located between the cables, which act as counterparts against the clamping force of the individual clamping bodies. The tips of the teeth of a row are located on a circular arc, the adjacent outer teeth of two adjacent clamping bodies being at a smaller distance from the central axis of the bore than the outer teeth lying at opposite ends of the rows, so that the individual teeth of each row, with respect to the center plane of the outer housing, which runs in the direction of the clamping force effect and is oriented perpendicular to the plane spanned by the outer housing, are oriented slightly inclined inwards towards the center plane, so that the clamping bodies are only ever in a single position within the outer housing or . of the guide housing can be accommodated.

Eine Kabelabzweigklemme der eingangs genannten Art ist aus der GB 1 260 423 A bekannt geworden. Diese Klemme besitzt vier Klemmkörper, die jeweils drei Zähne aufweisen, von denen der jeweils äußere Zahn der längste Zahn ist. Dadurch ist es lediglich möglich, Kabel zu verwenden, deren Durchmesser größer als ein bestimmter Mindestdurchmesser ist, so daß sich die Kabel innerhalb der Zahnanordnung zweier nebeneinanderliegender, in gleicher Klemmrichtung verlaufender Klemmkörper befinden.A cable junction terminal of the type mentioned is known from GB 1 260 423 A. This clamp has four clamping bodies, each with three teeth, of which the outer tooth is the longest tooth. As a result, it is only possible to use cables whose diameter is larger than a certain minimum diameter, so that the cables are within the tooth arrangement two juxtaposed clamping bodies running in the same clamping direction.

Aufgabe der Erfindung ist es, eine Kabelabzweigklemme der eingangs genannten Art dahingehend zu verbessern, daß auch Kabel mit kleinem Durchmesser verklemmt werden können.The object of the invention is to improve a cable branch terminal of the type mentioned in such a way that cables with a small diameter can also be clamped.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Abstand des Zahnendes wenigstens eines zwischen zwei außenliegenden Zähnen jeder Reihe befindlichen Zahnes von der Mittelachse der Bohrung größer ist als der der Enden der beiden außenliegenden Zähne von der die Bohrungsachse enthaltenden, quer zur Klemmrichtung verlaufenden Quermittelebene. Dabei treten die Zähne aus einer unter einem stumpfen Winkel zur Klemmrichtung verlaufenden Ebene oder unter einem spitzen Winkel zu der quer zu der Klemmrichtung verlaufenden Ebene hervor.This object is achieved in that the distance of the tooth end of at least one tooth located between two external teeth of each row from the central axis of the bore is greater than that of the ends of the two external teeth from the transverse central plane containing the bore axis, transverse to the clamping direction. The teeth emerge from a plane running at an obtuse angle to the clamping direction or at an acute angle to the plane running transversely to the clamping direction.

Die besondere Ausgestaltung des Klemmkörpers mit den Zähnen ist den Unteransprüchen 3 bis 9 zu entnehmen.The special design of the clamping body with the teeth can be found in subclaims 3 to 9.

In besonders vorteilhafter Weise schließen die Zahnflanken einen spitzen Winkel ein, der nicht größer als ca. 25° ist.In a particularly advantageous manner, the tooth flanks form an acute angle which is not greater than approximately 25 °.

Mit dieser erfindungsgemäßen Ausgestaltung der Zahnzuordnung zu der Längsmittelebene bzw. Quermittelebene jedes Klemmkörpers wird eine Reihe von Vorteilen erreicht, die weiter unten im Zusammenhang mit den Figuren erläutert sind.With this embodiment of the tooth assignment according to the invention to the longitudinal center plane or transverse center plane of each clamping body, a number of advantages are achieved which are explained further below in connection with the figures.

In besonders vorteilhafter Weise wird die Erfindung angewendet bei einer Kabelabzweigklemme, die insgesamt vier Klemmkörper aufweist, von denen je zwei in einem in einem U-förmigen Außengehäuseteil untergebrachten Führungskörper eingesetzt sind, wobei die beiden Außengehäuseteile miteinander verschraubt sind. Der durch den Außenumfang des Außengehäuses umgrenzte Bereich zwischen den in der Mitte verlaufenden Kabeladern und dem Außengehäuse wird mit Gießharz ausgegossen und demgemäß besitzen die freien Schenkel des U-förmigen Außengehäuseteils Durchbrüche, die dem Gießharz beim Vergießen des Zwischenraumes eine Entlüftung gestatten.In a particularly advantageous manner, the invention is applied to a cable branch terminal which has a total of four clamping bodies, two of which are in one in one U-shaped outer housing part housed guide body are used, the two outer housing parts are screwed together. The area delimited by the outer circumference of the outer housing between the cable cores running in the middle and the outer housing is poured out with casting resin and accordingly possess the free legs of the U-shaped outer housing part openings which allow the casting resin to vent during the casting of the space.

Eine bevorzugte Ausgestaltung der Erfindung bei insgesamt vier Klemmenkörpern besteht darin, daß das Gegenstück für die Klemmkörper eine zwischen je zwei sich gegenüberliegenden Klemmkörpern befindliche Zwischenwand ist, bei der in bevorzugter Weise quer zur Hauptkabelerstreckung verlaufende keilförmige Leisten vorgesehen sind. Durch diese keilförmigen Leisten, die sich ins Innere des Mantels der einzelnen Adern hineindrücken, wird ein Verschieben des Kabels bzw. der Kabelader durch Verformen des Kabelmantels verhindert.A preferred embodiment of the invention with a total of four clamp bodies is that the counterpart for the clamp body is an intermediate wall located between two opposing clamp bodies, in which wedge-shaped strips running in a preferred manner transverse to the main cable extension are provided. These wedge-shaped strips, which press into the inside of the sheath of the individual wires, prevent the cable or the cable core from being displaced by deforming the cable sheath.

In Richtung der Klemmung verlaufend befindet sich eine Führungstrennwand oder Abteilwand an der Kabelabzweigklemme, welche mit ihren Enden zwischen jeweils zwei nebeneinanderliegende Klemmkörper hineingreift. Mit den Zwischenwänden und der Trennwand werden die Kabeladern auf Abstand gehalten, und darüberhinaus dient die Trennwand auch als Anlage für die zu verklemmenden Kabeladern.Running in the direction of the clamping is a guide partition or compartment wall on the cable junction terminal, which engages with its ends between two adjacent clamping bodies. The cable cores are kept at a distance with the partitions and the partition wall, and the partition wall also serves as a system for the cable cores to be clamped.

Die Zwischenwände besitzen dabei einen Vorsprung, mit welchem sie in je eine Nut auf beiden Seiten der Trennwand eingreifen und darin geführt sind.The partitions have a projection with which they engage in a groove on both sides of the partition and are guided therein.

Aufgrund der erfindungsgemäßen Ausgestaltung der Zähne in Zusammenwirken mit den Zwischenwänden und der Trennwand wird der Klemmkörper für unterschiedliche Durchmesser von Kabeln einsetzbar. Dadurch, daß der zweite Zahn jeder Reihe länger ist als der erste und auch die beiden danebenliegenden dritten und vierten Zähne überragt, können entweder die beiden ersten Zähne zum Verklemmen eines Leiters mit dünnem Querschnitt oder die beiden dritten und vierten Zähne zum Verklemmen eines Leiters mit größerem Querschnitt benutzt werden, wobei die einzelnen Klemmkörper je nach Querschnitt des zu verklemmenden Kabels bzw. der zu verklemmenden Kabelader in unterschiedlicher Ausrichtung (180° verdreht) in die Führungskörper einzusetzen sind.Due to the inventive design of the teeth in cooperation with the intermediate walls and the partition, the clamping body can be used for different diameters of cables. Because the second tooth of each row is longer than the first and also extends beyond the two adjacent third and fourth teeth, Either the first two teeth can be used to clamp a conductor with a thin cross-section or the third and fourth teeth can be used to clamp a conductor with a larger cross-section, with the individual clamping bodies depending on the cross-section of the cable to be clamped or the cable core to be clamped in different orientations (Rotated 180 °) are to be inserted into the guide body.

An der Trennwand und/oder an der Zwischenwand können dann zusätzlich noch Rillen vorgesehen sein, in welche dem Kabel zugeordnete Hilfsadern einlegbar sind. Im Gegensatz zu der oben erwähnten bekannten Klemme befinden sich die Rillen in unmittelbarer Nähe der Kabel, so daß die Montage der Kabel und der Hilfsadern sehr leicht durchführbar ist.Grooves can then additionally be provided on the partition and / or on the intermediate wall, into which grooves the auxiliary wires assigned to the cable can be inserted. In contrast to the known clamp mentioned above, the grooves are in the immediate vicinity of the cables, so that the installation of the cables and the auxiliary wires is very easy to carry out.

Insgesamt also kann jeder Klemmkörper alle Kabelsorten kontaktieren, sowohl dreieck-, sektor- als auch kreisförmige Kabeladern. Immer sind die Zahnspitzen aufgrund ihrer geometrischen Form und Länge annähernd in etwa gleicher Tiefe in die Adern eingedrückt, so daß etwa gleicher Kontaktdruck pro Abzweig mit konstantem Kontaktübergangswiderstand pro Abzweig erzielt werden kann.Overall, each clamp body can contact all types of cable, both triangular, sector and circular cable cores. Due to their geometric shape and length, the tooth tips are always pressed into the veins at approximately the same depth, so that approximately the same contact pressure per branch can be achieved with constant contact resistance per branch.

Die bekannten Kabelabzweigklemmen haben Klemmkörper mit relativ stumpferen Zähnen, wodurch die Eindrücktiefe geringer wird. Durch die Geometrie der Zähne ist somit die Eindrücktiefe begrenzt. Die erfindungsgemäße spitze Form der Zähne bewirkt ein tieferes Eindringen ins Kabel, ohne daß das Gehäuse höher belastet wird. Die spitzen Zähne bzw. die spitze Zahnform erlaubt auch die Drehung um 180°.The known cable branch clamps have clamping bodies with relatively blunt teeth, as a result of which the indentation depth is less. The depth of the indentation is limited by the geometry of the teeth. The pointed shape of the teeth according to the invention causes a deeper penetration into the cable without the housing being subjected to higher loads. The pointed teeth or the pointed tooth shape also allows rotation through 180 °.

Es ist weiterhin noch festzuhalten, daß die Zähne unterschiedlich breit sind. Dies barücksichtigt die unterschiedliche Belastung der Zähne beim Eindrücken in die entsprechenden Kabel, so daß beispielsweise der vierte Zahn relativ dünn und schmal ausgeführt sein kann. Weiterhin ist festzuhalten, daß aufgrund der Ausgestaltung der Zähne und ihrer Länge insbesondere eine gleichzeitige Berührung der Isolation und damit auch eine gleichzeitige Eindrückung in das Kabel bewirkt werden. Dabei gilt selbstverständlich, daß die Zähne sich umso tiefer in die Kabel hineindrücken, je größer der Kabeldurchmesser ist.It should also be noted that the teeth are of different widths. This takes into account the different load on the teeth when they are pressed into the corresponding cables, so that, for example, the fourth tooth can be made relatively thin and narrow. Furthermore, it should be noted that due to the design of the teeth and their length, a simultaneous contact of the insulation and thus also a simultaneous pressing into the cable are brought about. It goes without saying that the larger the cable diameter, the deeper the teeth push into the cable.

Die Montage der Kabelabzweigklemme ist wie folgt:The assembly of the cable branch clamp is as follows:

Zunächst wird der Kabelmantel bis auf die isolierten Kabeladern abisoliert. Sodann wird zwischen jeweils zwei Kabeladern ein Montagekeil eingeschoben, um die Längstrennwand einzufügen, so daß beidseitig zur Längstrennwand (bei vier Adern) jeweils zwei Adern liegen. Gegebenenfalls mit Keilhilfe können dann die Quertrennwände eingeführt werden und zwar so bis deren Vorsprünge in die Nuten der Längstrennwand gelangen. Zusätzlich können Hilfsadern in die Führungsrillen oder die Rillen an der Längstrennwand bzw. an den Quertrennwänden eingelegt werden. Die Abzweigkabel werden im Klemmkörper festgeklemmt, und die Außengehäuseteile (Klemmengehäuse), Klemmkörpergehäuse und Klemmkörper mit kontaktierten Abzweigadern werden zusammengesetzt, wobei die Enden der Längstrennwand in Führungsnuten in den Klemmkörpergehäusen in Eingriff gelangen. Danach werden die beiden Außengehäuseteile miteinander verschraubt und hierdurch werden die Zähne in die Kabeladern hineingedrückt.First, the cable jacket is stripped down to the insulated cable cores. Then a mounting wedge is inserted between two cable cores in order to insert the longitudinal partition, so that there are two cores on both sides of the longitudinal partition (with four cores). If necessary, with the help of a wedge, the transverse dividing walls can then be inserted in such a way that their projections enter the grooves in the longitudinal dividing wall. In addition, auxiliary wires can be inserted into the guide grooves or the grooves on the longitudinal partition or on the transverse partition. The branch cables are clamped in the clamping body, and the outer housing parts (terminal housing), clamping body housing and clamping body with contacted branch wires are assembled, the ends of the longitudinal partition wall engaging in guide grooves in the clamping body housings. Then the two outer housing parts are screwed together and this causes the teeth to be pressed into the cable wires.

Danach wird der Zwischenraum zwischen den Adern und dem Außengehäuse bzw. den beiden Außengehäuseteilen mit Gießharz vergossen, wobei die Öffnungen in den Schenkeln zur Entlüftung beim Vergießen dienen, um Lufteinschlüsse zu verhindern.The space between the cores and the outer housing or the two outer housing parts is then cast with casting resin, the openings in the legs serving for ventilation during casting in order to prevent air pockets.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further advantageous embodiments of the invention can be found in the further subclaims.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Based on the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements of the invention are to be explained and described in more detail.

Es zeigen:

Fig. 1
eine teilweise geschnittene Seitenansicht einer erfindungsgemäßen Kabelabzweigklemme,
Fig. 2 und 3
je eine Ansicht von unten und von oben auf ein Gegenlager für ein zu verklemmendes Kabel,
Fig. 4
eine Längsschnittansicht gemäß der Schnittlinie IV-IV der Fig. 5 durch eine Abteilungswand,
Fig. 5
eine Seitenansicht der Abteilungswand gemäß Fig. 4,
Fig. 6
eine Aufsicht auf einen Klemmkörper, teilweise geschnitten,
Fig. 7
eine Schnittansicht gemäß Schnittlinie VII-VII der Fig. 6 und
Fig. 8 bis 11
jeweils eine schematische Darstellung des Klemmkörpers in Zusammenwirkung mit einem zu verklemmenden Kabel, für jeweils unterschiedliche Kabelformen und Kabeldurchmesser.
Show it:
Fig. 1
a partially sectioned side view of a cable junction clamp according to the invention,
2 and 3
a view from below and from above of a counter bearing for a cable to be clamped,
Fig. 4
5 shows a longitudinal sectional view according to the section line IV-IV of FIG. 5 through a department wall,
Fig. 5
3 shows a side view of the department wall according to FIG. 4,
Fig. 6
a top view of a sprag, partially cut,
Fig. 7
a sectional view along section line VII-VII of Fig. 6 and
8 to 11
each a schematic representation of the clamping body in cooperation with a cable to be clamped, for different cable shapes and cable diameters.

Eine Kabelklemme 10 besitzt ein oberes Klemmengehäuse 11 und ein unteres Klemmengehäuse 12, die eine U-förmige Gestalt besitzen, mit einem Gehäusesteg 13 bzw. 14 und jeweils zwei Schenkeln 15, 16 bzw. 17 18. An den beiden oberen Schenkeln 15 und 16 des oberen Klemmengehäuses 11 befinden sich die Schenkel 15, 16 mittig durchdringende Öfffnungen 19, von denen lediglich die im Schenkel 15 zu sehen ist, wobei die Öffnung 19 durch zwei in Abstand und parallel zueinander liegende Schenkelwände 20 begrenzt ist, deren Abstand so gewählt ist, daß der Kopf 21 eines Schraubenbolzens 22 durch die Öffnung 19 zwischen den beiden Schenkelwänden 20 hindurchpaßt, so daß der Schraubenbolzen 22 in eine in Längsrichtung der Schenkel 15 verlaufende Bohrung 23 hindurchsteckbar ist. Eine gleiche Anordnung wie links von der Mittellinie ist auch rechts von der Mittellinie am oberen Klemmengehäuse 11 vorgesehen. Die Schenkelwände 20 verlaufen in Flucht mit den Stirnflächen der Klemmengehäuse 11, 12.A cable clamp 10 has an upper terminal housing 11 and a lower terminal housing 12, which have a U-shaped shape, with a housing web 13 and 14 and two legs 15, 16 and 17, respectively. On the two upper legs 15 and 16 of the Upper clamp housing 11 are the legs 15, 16 centrally penetrating openings 19, of which only the one in the leg 15 can be seen, the opening 19 being delimited by two leg walls 20 which are spaced apart and parallel to one another, the spacing of which is chosen such that the head 21 of a bolt 22 fits through the opening 19 between the two leg walls 20 so that the bolt 22 can be inserted into a bore 23 extending in the longitudinal direction of the leg 15. The same arrangement as on the left of the center line is also provided on the right of the center line on the upper terminal housing 11. The leg walls 20 run in alignment with the end faces of the terminal housings 11, 12.

Das untere Klemmengehäuse 12 besitzt in den Schenkeln eine der Öffnung 19 ähnliche Öffnung 24 mit Schenkelwänden 25, und in dem Schenkel 17 ist eine Gewindebohrung 26 vorgesehen, die im zusammenmontierten Zustand mit der Bohrung 23 fluchtet, so daß der Schraubenbolzen 22 in die Gewindebohrung 26 einschraubbar ist. Das untere Klemmengehäuse 12 besitzt natürlich auch die gleiche Zuordnung von Gewindebohrung 26, Öffnung 24 und Schenkelwänden 25 am rechten Schenkel 18.The lower terminal housing 12 has in the legs an opening 24 similar to the opening 19 with leg walls 25, and in the leg 17 a threaded bore 26 is provided which is aligned with the bore 23 in the assembled state, so that the screw 22 can be screwed into the threaded bore 26 is. The lower terminal housing 12 naturally also has the same assignment of the threaded bore 26, the opening 24 and the leg walls 25 on the right leg 18.

Die Gehäusestege 13 und 14 besitzen jeweils zwei nebeneinanderliegende Bohrungen 28, von denen nur die in der Fig. 1 links gezeichnete Bohrung im Klemmengehäuse 11 sichtbar ist.The housing webs 13 and 14 each have two adjacent bores 28, of which only the bore in the terminal housing 11 shown on the left in FIG. 1 is visible.

In das Innere der Klemmengehäuse 11 und 12 ist je ein Klemmkörpergehäuse 29 und 30 eingesetzt, welche in ihrer äußeren Kontur dem durch die Schenkel 15, 16; 17, 18 und die Stege 13 und 14 gebildeten Innenraum der Klemmengehäuse 11 und 12 angepaßt sind. Die Klemmkörpergehäuse besitzen an ihrer der Innenfläche des gehäusesteges 13 bzw. 14 zugewandten Seite jeweils einen Kragen 31 bzw. 32, die in die Bohrungen 28 hineinpassen, so daß die Kragen 31 und 32 zur Führung der Klemmkörpergehäuse 29 bzw. 30 innerhalb der Klemmengehäuse 11 und 12 dienen.In the interior of the terminal housing 11 and 12, a clamping body housing 29 and 30 is inserted, which in its outer contour by the legs 15, 16; 17, 18 and the webs 13 and 14 formed interior of the terminal housing 11 and 12 are adapted. The clamp body housings each have a collar 31 or 32 on their side facing the inner surface of the housing web 13 or 14, which fit into the bores 28, so that the collars 31 and 32 for guiding the clamp body housings 29 and 30 within the clamp housing 11 and 12 serve.

Die Klemmkörpergehäuse 29 und 30 besitzen in Richtung der offenen Seite der Schenkel 15 und 16 - im zusammengebauten Zustand - offene, U-förmige Ausnehmungen 33 und 34 bzw. 35 und 36, in die in den Figuren 6 und 7 dargestellte Klemmkörper 37, 38 bzw. 39 und 40 eingerastet sind. Die Klemmkörper 37 bis 40 werden weiter unten anhand der Figuren 6 und 7 sowie der Figuren 8 bis 10 näher beschrieben. Zwischen den beiden Ausnehmungen 33 und 34 bzw. 35 und 36 befindet sich jeweils eine ebenfalls U-förmige Vertiefung 41 bzw. 42, welche Vertiefungen der beiden Klemmenkörpergehäuse 29 und 30 sich direkt gegenüberliegen, wenn die Klemmkorper 37 bis 40 Klemmengehäuse 11 und 12 eingesetzt und die beiden Klemmengehäuse 11 und 12 zusammengesetzt sind; in diese Vertiefungen 41 und 42 greift je ein Ende einer Abteilwand 43 ein und trennt die beiden sich gegenüberliegenden Klemmkörper 37 und 39 von den anderen sich gegenüberliegenden Klemmkörper 38 und 40. Zwischen den beiden Klemmengehäusen 11 und 12 und zwischen den Schenkeln 15 und 17 bzw. 16 und 18 geführt befindet sich jeweils ein Druckstück 44 und 45, welches in den Figuren 2 und 3 näher erläutert ist, und auf deren Seitenflächen im verklemmten Zustand Kabel aufliegen.The clamp body 29 and 30 have in the direction of the open side of the legs 15 and 16 - in the assembled state - open, U-shaped recesses 33 and 34 or 35 and 36, in the clamp body 37, 38 and 38 shown in Figures 6 and 7 respectively 39 and 40 are engaged. The clamping bodies 37 to 40 are described in more detail below with reference to FIGS. 6 and 7 and FIGS. 8 to 10. Between the two recesses 33 and 34 or 35 and 36 there is in each case a likewise U-shaped recess 41 and 42, which recesses of the two clamp body housings 29 and 30 are directly opposite when the clamp bodies 37 to 40 are inserted into clamp housings 11 and 12 the two terminal housings 11 and 12 are assembled; one end of each compartment wall 43 engages in these recesses 41 and 42 and separates the two opposing clamping bodies 37 and 39 from the other opposing clamping bodies 38 and 40. Between the two terminal housings 11 and 12 and between the legs 15 and 17 or 16 and 18, there is a pressure piece 44 and 45, which is explained in more detail in FIGS. 2 and 3, and on the side surfaces of which cables are in the clamped state.

Es sei nun Bezug genommen auf die Figuren 2 und 3, die ein Druckstück 44 oder 45 von beiden Seiten zeigen. Das Druckstück 44 oder 45 besitzt in der Aufrißfläche eine annähernd rechteckige Form und an der einen längeren - Seitenkante 46 befindet sich ein trapezförmiger Vorsprung 47, wogegen an der gegenüberliegenden längeren Seitenkante 48 ein quer und senkrecht zur Ebene des Druckstückes 44 bzw. 45 verlaufender Steg 49 angeformt ist, so daß in der Seitenansicht (siehe Figur 1) jedes Druckstück 44 und 45 eine T-Form aufweist. Senkrecht zu dem Steg 49 verlaufen auf der einen (in Figur 2 sichtbaren) Oberfläche vier von der Druckstückoberfläche vorspringende Leisten 50, deren dem Steg 49 benachbarte Enden in Abstand zu diesem Steg 49 enden; die auf der anderen Seite des Druckstückes 44 bzw. 45 liegenden Leisten 51 enden einerseits in der Nähe der Seitenkante 46 und schließen andererseits direkt an dem Steg 49 an. Der Steg 49 dient zur Fixierung der beiden Druckstücke 44 und 45 zwischen den beiden Schenkeln 15/17 bzw. 16/18; die Führung der Druckstücke 44 und 45 im Bereich der Abteilwand 43 erfolgt dadurch, daß die Vorsprünge 47 in einen die Abteilwand 43 durchgreifenden Schlitz 52 eingreifen. Dabei ist die Länge der Vorsprünge 47 in Richtung der Seitenkante 46 und die daran angepaßte Länge des Schlitzes 52 annähernd gleich. Die Leisten 50 und 51 sind in ihrem Querschnitt dreieckförmig mit einer spitzen Kante, die sich in die Isolierung eines Hauptkabels eindrückt.Reference is now made to FIGS. 2 and 3, which show a pressure piece 44 or 45 from both sides. The pressure piece 44 or 45 has an approximately rectangular shape in the tear-open area and on the one longer - side edge 46 there is a trapezoidal projection 47, whereas on the opposite longer side edge 48 there is a web 49 which runs transversely and perpendicularly to the plane of the pressure piece 44 or 45 is molded so that in the side view (see Figure 1) each pressure piece 44 and 45 has a T-shape. On one surface (visible in FIG. 2), four ledges 50 projecting perpendicularly to the web 49 extend from the pressure piece surface, the ends of which adjoin the web 49 end at a distance from this web 49; the strips 51 lying on the other side of the pressure piece 44 or 45 end on the one hand near the side edge 46 and on the other hand connect directly to the web 49. The web 49 serves to fix the two pressure pieces 44 and 45 between the two legs 15/17 and 16/18; the pressure pieces 44 and 45 are guided in the region of the compartment wall 43 in that the projections 47 engage in a slot 52 which extends through the compartment wall 43. The length of the projections 47 in the direction of the side edge 46 and the length of the slot 52 adapted to it is approximately the same. The strips 50 and 51 are triangular in cross-section with a pointed edge that is pressed into the insulation of a main cable.

Es sei nun Bezug genommen auf die Figuren 4 und 5.Reference is now made to FIGS. 4 and 5.

Die Figuren 4 und 5 zeigen eine Abteilwand 43 im Schnitt und in der Aufsicht. Die Abteilwand 43 besitzt in ihrem mittleren Bereich eine mittig liegende Wandung 53, die durch beidseitig der Wandung 53 angeordnete, von der Wandungsfläche der Wandung 53 vorspringende Leisten 54 verstärkt ist. Im Zentrum, den Schlitz 52 umgebend, befindet sich eine umlaufende Leiste 55, selbstverständlich auf beiden Seiten der Wandung 53; die mittleren Stege 54a verlaufen senkrecht zu denjenigen Leistenabschnitten 55a, die die sich gegenüberliegenden Längskanten des Schlitzes 52 begrenzen, wogegen die Leisten 54b mit den Leistenabschnitten 55b fluchten bzw. in diese übergehen, die die Schmalseitenkanten des Schlitzes 52 begrenzen bzw. an diesen angeformt sind. In ihrer Gesamtfläche besitzt die Abteilwand 43 eine Rechteckform mit längeren Seitenkanten 56 und kürzeren Seitenkanten; die Längserstreckung des Schlitzes 52 verläuft quer zu den längeren Seitenkanten 56.Figures 4 and 5 show a compartment wall 43 in section and in supervision. The compartment wall 43 has in its central region a centrally located wall 53, which is arranged on both sides of the wall 53, from which Wall surface of the wall 53 projecting ledges 54 is reinforced. In the center, surrounding the slot 52, there is a circumferential bar 55, of course on both sides of the wall 53; the middle webs 54a run perpendicular to those ledge sections 55a which delimit the opposite longitudinal edges of the slot 52, whereas the ledges 54b are flush with or merge into the ledge sections 55b which delimit or are formed on the narrow side edges of the slot 52. In its total area, the compartment wall 43 has a rectangular shape with longer side edges 56 and shorter side edges; the longitudinal extent of the slot 52 extends transversely to the longer side edges 56.

Parallel zu den kürzeren Seitenkanten 57 und parallel auch zu der Längserstreckung des Schlitzes 52 befinden sich hakenförmige Vertiefungen 58 und 59, die sich beide auf einer Seite bzw. Seitenebene der Abteilwand 43 befinden; damit schließen sich an der Wandung 53 Wandabschnitte 60 und 61 an, die im Querschnitt eine "2" dergestalt bilden, daß der Steg der "2" an der kürzeren Seitenkante 57 anschließt und diese praktisch bildet, wogegen jeder Haken oder Kopf der beiden "2"-Formen mit der Vertiefung 58 bzw. 59 im Bereich des Kopfes jeweils nach einer Seite geöffnet an der Wandung 53 angeformt ist. Die Stege der "2" bilden eine Art Verdickung bzw. Verstärkung der kürzeren Seitenkanten 57.Parallel to the shorter side edges 57 and parallel to the longitudinal extent of the slot 52 are hook-shaped depressions 58 and 59, both of which are located on one side or side plane of the compartment wall 43; thus adjoin the wall 53 wall sections 60 and 61, which form a "2" in cross section such that the web of the "2" adjoins the shorter side edge 57 and forms it practically, whereas each hook or head of the two "2 "-Shapes with the recess 58 or 59 in the region of the head are each formed on one side open on the wall 53. The webs of the "2" form a kind of thickening or reinforcement of the shorter side edges 57.

Es sei nun Bezug genommen auf die Figuren 6 und 7.Reference is now made to FIGS. 6 and 7.

Diese Figuren 6 und 7 zeigen den Klemmkörper 38 (stellvertretend für alle) in Seitenansicht und in Schnittansicht. Der Klemmkörper 38 besitzt in seiner Grundform einen quaderförmigen Körper 62, der im Querschnitt drei jeweils senkrecht zueinander verlaufende Seitenflächen 64, 65 und 66 aufweist, wogegen eine der Seitenflächen, nämlich die strichliert dargestelle Seitenfläche 63, unter einem Winkel zu den Seitenflächen 66 und 64 dergestalt geneigt ist, daß die beiden Seitenflächen 66 und 64 eine unterschiedliche Größe aufweisen; die Seitenfläche 64 ist größer als die Seitenfläche 66. Dadurch ergibt sich im Querschnitt gemäß Schnittlinie VII-VII ein annähernd trapezförmiger Querschnitt. Auf der schräg verlaufenden Seitenfläche 63 sind vier Reihen 67, 68, 69 und 70 von vier Zähnen 71 bis 74 nebeneinander angeordnet, und in Richtung der Reihen 67 bis 70 ist der Körper 62 von einer Längsbohrung 75 durchdrungen, und quer zu dieser Längsbohrung 75 verläuft, in die Seitenfläche 65 einmündend, eine Gewindebohrung 76. Wie man aus Figur 1 erkennen kann, verläuft die Längsbohrung 75 quer zu der durch die beiden Klemmengehäuse 11 und 12 gebildeten Ebene, so daß in diese Längsbohrungen 75 Abzweigkabel (nicht dargestellt) eingelegt werden können. In die Gewindebohrung 76 eingeschraubt ist eine Klemmschraube 77, die durch eine im Kragen 31 der Klemmkörpergehäuse 29 und 30 greifende Durchbrechung 78 zugänglich ist. Dabei sind zwei Durchbrechungen 78 an jedem Klemmkörpergehäuse 29, 30 vorgesehen.These Figures 6 and 7 show the clamping body 38 (representative of all) in side view and in sectional view. The clamping body 38 has in its basic form a cuboid body 62, which in cross-section has three mutually perpendicular side surfaces 64, 65 and 66, whereas one of the side surfaces, namely the dashed side surface 63, is inclined at an angle to the side surfaces 66 and 64 such that the two side surfaces 66 and 64 are of different sizes; the side surface 64 is larger than the side surface 66. This results in an approximately trapezoidal cross-section in cross section according to section line VII-VII. On the inclined side surface 63, four rows 67, 68, 69 and 70 of four teeth 71 to 74 are arranged side by side, and in the direction of the rows 67 to 70, the body 62 is penetrated by a longitudinal bore 75 and extends transversely to this longitudinal bore 75 , opening into the side surface 65, a threaded bore 76. As can be seen from Figure 1, the longitudinal bore 75 extends transversely to the plane formed by the two terminal housings 11 and 12, so that 75 branch cables (not shown) can be inserted into these longitudinal bores . Screwed into the threaded bore 76 is a clamping screw 77 which is accessible through an opening 78 which engages in the collar 31 of the clamping body housings 29 and 30. Two openings 78 are provided on each sprag housing 29, 30.

Die Zähne 71 bis 74 sind unterschiedlich lang und besitzen auch eine unterschiedliche Gestalt. Die Spitze des an der Seitenfläche 64 anschließenden ersten Zahnes 71 besitzt von der Mittelebene M, die parallel zur Seitenfläche 65 durch die Mittelachse der Längsbohrung 75 verläuft, einen Abstand d₁, die Spitze des danebenliegenden Zahnes 72 besitzt einen Abstand d₂, wobei der Abstand d₁ kleiner ist als der Abstand d₂. Die Spitze des an den Zahn 72 anschließenden dritten Zahnes besitzt einen Abstand d₃ und die des vierten Zahnes 74 einen Abstand d₄, jeweis von der Seitenfläche 63 aus gemessen. Der Abstand d₃ ist kleiner als der Abstand d₁ und der Abstand d₄ ist ebenfalls kleiner als der Abstand d₃. Verbindet man die Spitzen der beiden Zähne 72 und 74 miteinander, dann bildet die Verbindungslinie einen spitzen Winkel zu der Seitenfläche 63, da der Abstand der Spitze des Zahnes 72 von der Seitenfläche 63, senkrecht zur Ebene M gemessen, größer ist als die Länge des Zahnes 74, ebenfalls gemessen in der gleichen Richtung. Der dazwischen befindliche Zahn 73 ist demgemäß noch kürzer, so daß zwischen der Spitze des Zahnes 73 und der Verbindungslinie der beiden Spitzen der Zähne 72 und 74 ein Zwischenraum vorhanden ist. Man könnte sagen, daß die Spitzen der drei Zähne 72 bis 74 etwa auf einem Kreis liegen oder daß die Verbindungslinien der Zähne 72 und 73 bzw. 73 und 74 einen in Zahnrichtung offenen stumpfen Winkel miteinander bilden.The teeth 71 to 74 are of different lengths and also have a different shape. The tip of the first tooth 71 adjoining the side surface 64 has a distance d 1 from the central plane M, which runs parallel to the side surface 65 through the central axis of the longitudinal bore 75, the tip of the adjacent tooth 72 has a distance d 2, the distance d 1 being smaller is as the distance d₂. The top of the at the Tooth 72 connecting third tooth has a distance d₃ and that of the fourth tooth 74 has a distance d₄, measured from the side surface 63. The distance d₃ is smaller than the distance d₁ and the distance d₄ is also smaller than the distance d₃. If the tips of the two teeth 72 and 74 are connected to one another, the connecting line forms an acute angle to the side surface 63, since the distance of the tip of the tooth 72 from the side surface 63, measured perpendicular to the plane M, is greater than the length of the tooth 74, also measured in the same direction. The tooth 73 located therebetween is accordingly even shorter, so that there is a space between the tip of the tooth 73 and the connecting line of the two tips of the teeth 72 and 74. One could say that the tips of the three teeth 72 to 74 lie approximately on a circle or that the connecting lines of the teeth 72 and 73 or 73 and 74 form an obtuse angle with one another which is open in the tooth direction.

Aus der Figur 2 ist weiterhin ersichtlich, daß die Zahnform, also die Winkel, die die Zahnflanken miteinander bilden, unterschiedlich ist bzw. sind. Während die beiden Winkel alpha 3 und alpha 4, die die sich gegenüberliegenden Zahnflanken der Zähne 71 und 72 mit einer durch den Lückengrund zwischen den Zähnen 71 und 72 verlaufenden Mittellinie M₁, die senkrecht zur Ebene M verläuft, einschließen, nur geringfügig unterschiedlich sind, sind beispielsweise die gleichen Winkel alpha 5 und alpha 6 in der Lücke zwischen den beiden Zähnen 72 und 73 doch sehr unterschiedlich, dergestalt, daß die Zähne 72 und 73 in Richtung zur Seitenwand 64 bzw. Seitenfläche 64 hin geneigt ausgerichtet sind. Der Unterschied zwischen den Winkeln alpha 7 und alpha 8, die in der gleichen Weise gemessen werden wie die Winkel alpha 3, alpha 4; alpha 5 und alpha 6, ist noch größer, so daß der äußere Zahn 74 noch stärker hin zu der Seitenfläche 64 geneigt ausgerichtet ist. Der Winkel alpha 2 jedes Zahnes, den die Zahnflanken der Zähne 71, 72 und 73 miteinander bilden, ist größer als der Winkel, den die Zahnflanken des Zahnes 74 miteinander bilden, so daß der Zahn 74 spitzer ist als die Zähne 71 bis 73.It can also be seen from FIG. 2 that the tooth shape, that is to say the angles which the tooth flanks form with one another, is or are different. While the two angles alpha 3 and alpha 4, which include the opposing tooth flanks of the teeth 71 and 72 with a center line M 1 which runs through the gap between the teeth 71 and 72 and which runs perpendicular to the plane M, are only slightly different for example, the same angles alpha 5 and alpha 6 in the gap between the two teeth 72 and 73 are very different, in such a way that the teeth 72 and 73 are inclined towards the side wall 64 and side surface 64. The difference between the angles alpha 7 and alpha 8 that in measured in the same way as the angles alpha 3, alpha 4; alpha 5 and alpha 6, is even larger, so that the outer tooth 74 is even more inclined towards the side surface 64. The angle alpha 2 of each tooth that the tooth flanks of teeth 71, 72 and 73 form with one another is greater than the angle that the tooth flanks of tooth 74 form with one another, so that tooth 74 is more acute than teeth 71 to 73.

Die Breite der Zähne 71 bis 74 im Bereich ihres Fußes ist entsprechend der erforderlichen Festigkeit gewählt; die beiden mittleren Zähne 72 und 73 besitzen eine größere Breite, da sie bei einer Verklemmung stärker belastet sind, wogegen die Fußbreite der Zähne 71 und 74 deutlich geringer ist. Die Fußbreite des Zahnes 74 ist zusätzlich gegenüber der des Zahnes 71 ebenfalls kleiner.The width of the teeth 71 to 74 in the area of their foot is chosen in accordance with the required strength; the two middle teeth 72 and 73 have a larger width because they are more heavily loaded when jammed, whereas the foot width of teeth 71 and 74 is significantly smaller. The foot width of tooth 74 is also smaller than that of tooth 71.

Wie aus der Figur 7 ebenfalls ersichtlich, bildet die Verbindungslinie V₇₁ Fußpunktmitte zu Spitze des Zahnes 71 einen spitzen Winkel mit der Seitenfläche 64 und zwar ist der Zahn 71 zur Mittelebene, die parallel zur Seitenfläche 64 durch die Mittelachse der Längsbohrung 75 verläuft, hin um diesen Winkel geneigt; die entsprechende Verbindungslinie V₇₂ ist zur Seitenfläche 64 hin geneigt; die entsprechenden Verbindungslinien V₇₃ und V₇₄ sind ebenfalls zur Mittelebene hin geneigt.As can also be seen from FIG. 7, the connecting line V₇₁ center of the foot to the tip of the tooth 71 forms an acute angle with the side surface 64, namely the tooth 71 to the central plane, which runs parallel to the side surface 64 through the central axis of the longitudinal bore 75, around it Angle inclined; the corresponding connecting line V₇₂ is inclined towards the side surface 64; the corresponding connecting lines V₇₃ and V₇₄ are also inclined towards the central plane.

Diese Konfiguration der Zähne 71 bis 74 hat sich als besonders vorteilhaft herausgestellt, wie weiter unten anhand der Figuren 8 bis 11 näher erläutert werden soll.This configuration of the teeth 71 to 74 has proven to be particularly advantageous, as will be explained in more detail below with reference to FIGS. 8 to 11.

Man erkennt in den Figuren 8 und 9 jeweils ein Klemmkörpergehäuse 29, in welches ein Klemmkörper 62 eingesetzt ist, dergestalt, daß die Zähne 71 der Abteilwand 43 benachbart liegen.One can see in FIGS. 8 and 9 in each case a clamping body housing 29, into which a clamping body 62 is inserted, in such a way that the teeth 71 lie adjacent to the compartment wall 43.

Die Abteilwand 43 ist in den Figuren 8 bis 11 lediglich schematisch gezeichnet. Zwischen dem Klemmkörper 62 und dem ebenfalls nur schematisch als Linie dargestellten Druckstück 44 befindet sich in der Ausführung Figur 8 ein rundes Kabel mit einer entsprechenden Isolierung 81. Man erkennt, daß die beiden Zähne 71 und 72 ins Innere der Kabelseele 80 eingreifen, wobei der Zahn 71 zwischen dem Mittelpunkt M₈₀ der Kabelseele 80 und der Abteilwand 43 und der Zahn 72 - von der Abteilwand 43 aus gesehen - jenseits des Mittelpunktes M₈₀ in die Kabelseele 80 eindringen. Der dritte Zahn 73 schneidet die Isolation 81 gerade an, wogegen der Zahn 74 frei ist. Dadurch, daß der Mittelpunkt M₈₀ zwischen den beiden Zähnen 71 und 72 liegt, wird ein Wegrutschen des Kabels von der Abteilwand 43 weg nach außen - in Richtung zu den Zähnen 73 und 74 - verhindert.The compartment wall 43 is only shown schematically in FIGS. 8 to 11. In the embodiment shown in FIG. 8, there is a round cable with corresponding insulation 81 between the clamping body 62 and the pressure piece 44, which is likewise only shown schematically as a line. It can be seen that the two teeth 71 and 72 engage in the interior of the cable core 80, the tooth 71 between the center M₈₀ of the cable core 80 and the compartment wall 43 and the tooth 72 - seen from the compartment wall 43 - penetrate beyond the center M₈₀ into the cable core 80. The third tooth 73 cuts the insulation 81 straight, whereas the tooth 74 is free. The fact that the center point M₈₀ lies between the two teeth 71 and 72 prevents the cable from slipping away from the compartment wall 43 to the outside - in the direction of the teeth 73 and 74.

Die Figur 9 zeigt die gleiche Konfiguration wie die der Figur 8; als Kabel ist ein Dreieckkabel 82 mit einer dreieckförmigen Kabelseele 83 und einer daran angepaßten Isolierung 84 vorgesehen. Man erkennt, daß die beiden Zähne 71 und 72 sich deutlich in die Kabelseele 83 hineinpressen, wogegen der Zahn 73 nur geringfügig in die Kabelseele 83 eingreift. Der Zahn 74 bleibt nach wie vor noch außerhalb der Isolierung 84.Figure 9 shows the same configuration as that of Figure 8; a triangular cable 82 with a triangular cable core 83 and an insulation 84 adapted to it is provided as the cable. It can be seen that the two teeth 71 and 72 clearly press into the cable core 83, whereas the tooth 73 engages only slightly in the cable core 83. The tooth 74 still remains outside the insulation 84.

Man kann den Klemmenkörper 82 auch um 180° gedreht in das Klemmkörpergehäuse 29 einsetzen; dann liegt der Zahn 74 nahe bei der Abteilwand 43, und der Zahn 71, der bei der Anwendung nach Figuren 8 und 9 der Abteilwand benachbart liegt, liegt am entgegengesetzten Ende der Reihe der Zähne 71 bis 74, von der Abteilwand 43 aus gesehen. In der Ausführung der Figur 11 ist ein Kabel eines geringeren Querschnittes vorgesehen, in dessen Kabelseele 85 die drei Zähne 74, 73 und 72 eingreifen, wogegen der Zahn 71 lediglich die Isolierung 86 des Kabels anschneidet. Das Kabel 85/86 ist - wie erwähnt - annähernd dreieckförmig, und man erkennt, daß die Spitzen der Zähne 74 bis 72 in etwa parallel zu der längeren Seite des Querschnittes der dreieckförmigen Kabelseele 85 verlaufen.You can also insert the clamp body 82 rotated through 180 ° into the clamp body housing 29; then tooth 74 is close to compartment wall 43 and tooth 71, which in the application according to FIGS. 8 and 9 is adjacent to the compartment wall, lies at the opposite end of the row of teeth 71 to 74, as seen from compartment wall 43. In the embodiment of FIG. 11, one cable is one smaller cross section provided, in whose cable core 85 the three teeth 74, 73 and 72 engage, whereas the tooth 71 only cuts the insulation 86 of the cable. As mentioned, the cable 85/86 is approximately triangular, and it can be seen that the tips of the teeth 74 to 72 run approximately parallel to the longer side of the cross section of the triangular cable core 85.

Bei der Ausführung nach Figur 10 ist ebenfalls ein dreieckförmiges Kabel vorgesehen, wobei die Kabelseele 87 von allen Zähnen beaufschlagt ist; der Zahn 71 drückt sich gerade soeben in die Kabelseele 87 ein.In the embodiment according to FIG. 10, a triangular cable is likewise provided, the cable core 87 being acted upon by all teeth; the tooth 71 is just pressing into the cable core 87.

Man erkennt aus den Figuren 8 bis 11, daß der Klemmkörper 62 so ausgebildet ist, daß mit ihm unterschiedliche Kabelformen mit unterschiedlichen Kabelquerschnitten verklemmt werden können. Damit eine optimale Kontaktierung zwischen den Zähnen 71 bis 74 und der Kabelseele 80, 83, 85 und 87 erzeugt wird, ist es lediglich erforderlich, abhängig von dem Durchmesser oder der Querschnittsform der Kabelseele 80, 83, 85 und 87 den Klemmkörper jeweils um 180° gedreht in das Klemmkörpergehäuse 29 einzusetzen. Auf diese Weise wird eine erhebliche Materialersparnis erwirkt: es ist nur ein einziger Klemmkörper erforderlich, und die Form der Zähne 71 bis 74 ist auch so gewählt, daß eine optimale Kontaktierung mit optimalem Stromübergang bei vergleichsweise geringer Klemmkraft erzielt werden kann.It can be seen from FIGS. 8 to 11 that the clamping body 62 is designed such that it can be used to clamp different cable shapes with different cable cross sections. So that an optimal contact between the teeth 71 to 74 and the cable core 80, 83, 85 and 87 is generated, it is only necessary, depending on the diameter or the cross-sectional shape of the cable core 80, 83, 85 and 87, the clamping body in each case by 180 ° inserted rotated into the clamp body 29. In this way, considerable material savings are achieved: only a single clamping body is required, and the shape of the teeth 71 to 74 is also selected such that an optimal contact with an optimal current transfer can be achieved with a comparatively low clamping force.

Durch die Neigung der Verbindungslinien V₇₁ bis V₇₄ wird im verklemmten Zustand immer eine solche Klemmkraft auf die Kabelseele ausgeübt, daß ein seitliches Verrutschen der Kabelseele verhindert ist.Due to the inclination of the connecting lines V₇₁ to V₇₄, such a clamping force is always exerted on the cable core in the clamped state that a lateral sliding of the cable core is prevented.

Die Leisten 50 und 51 sind dreieckförmig ausgebildet, wie oben schon erwähnt, damit sich die Spitzen der Leisten 51 und 50 etwas ins Innere der Isolierung 81, 82, 86 hineindrücken und auf diese Weise ein Verschieben der Kabel gegenüber den Druckstücken 44 und 45 verhindern.The strips 50 and 51 are triangular, as already mentioned above, so that the tips of the strips 51 and 50 press somewhat into the interior of the insulation 81, 82, 86 and in this way prevent the cables from moving relative to the pressure pieces 44 and 45.

Die sogenannten Hauptkabel sind zwischen die Druckstücke 44 und 45 und die Zähne der Klemmkörper 37, 38, 39 und 40 einzulegen und darin zu verklemmen, wogegen die Anbringung von Abzweigkabeln durch Verklemmung der Abzweigkabel in den Längsbohrungen 75 der Klemmenkörper 37 bis 40 erfolgt. Das Eindringen der Zähne 71 bis 74 ins Innere der Kabelseele wird durch die Klemmschrauben 25 bewirkt, mit denen die beiden Klemmengehäuse 11, 12 miteinander verschraubt werden.The so-called main cables are to be inserted between the pressure pieces 44 and 45 and the teeth of the clamping bodies 37, 38, 39 and 40 and clamped therein, whereas the branch cables are attached by clamping the branch cables in the longitudinal bores 75 of the clamp bodies 37 to 40. The penetration of the teeth 71 to 74 into the interior of the cable core is brought about by the clamping screws 25 with which the two terminal housings 11, 12 are screwed together.

Die Vertiefungen 58 und 59 befinden sich in unmittelbarer Nähe zu den zu verklemmenden Kabeln und dienen zur Aufnahme von Hilfsadern in den Kabeln.The depressions 58 and 59 are located in the immediate vicinity of the cables to be clamped and serve to accommodate auxiliary wires in the cables.

Die Kabelklemme 10 wird schlußendlich auf die Hauptadern aufgesetzt und dann der Innenraum zwischen den Klemmengehäusen vergossen; damit sich im inneren Bereich zwischen den Kabeln und den Innenflächen der Klemmgehäuse keine Luftblasen bilden, sind die Öffnungen 19. in den Schenkeln 15 und 16 bzw. 17 und 18 vorgesehen, durch die das Gießharz aus dem Zwischenraum innerhalb der Klemmengehäuse 11,12 nach außen heraustreten kann. Das Vergießen erfolgt selbstverständlich nach Abschluß der Montage und der Verklemmung der einzelnen Kabel bzw. Hilfsadern.The cable clamp 10 is finally placed on the main wires and then shed the interior between the terminal housings; So that no air bubbles form in the inner region between the cables and the inner surfaces of the terminal housings, the openings 19 are provided in the legs 15 and 16 or 17 and 18, through which the casting resin from the space inside the terminal housings 11, 12 to the outside can come out. The potting takes place of course after completion of the assembly and the jamming of the individual cables or auxiliary wires.

Jeder Klemmkörper 37 bis 40 besitzt Rastrillen 100 und 101, mit denen er mit nicht dargestellten Vorsprüngen im Klemmkörpergehäuse 29, 30 verrastbar ist.Each clamping body 37 to 40 has locking grooves 100 and 101, with which it can be locked with projections, not shown, in the clamping body housing 29, 30.

Claims (15)

  1. Cable tapping block having an outer housing (11, 12) of high strength, in particular of metal, having at least one clamping part (37, 38, 39, 40) which is provided with at least one row of teeth (71, 72, 73, 74) which upon clamping are pressed through the cable sheath (81, 84, 86) of a main cable to the cable core assembly (80, 83, 85, 87), having a hole (75) in the clamping part (37, 38, 39, 40) for receiving the stripped end of a stub cable and having a counterpart (44, 45) against which the main cable is pressed, each row of teeth (71, 72, 73, 74) running transverse to the direction of the hole axis and the teeth (71, 72, 73, 74) running approximately parallel to the clamping direction, characterized in that the distance (d2) of the tip of at least one tooth (72, 73) which is located between two external teeth (71, 74) of each row (67, 68, 69, 70) from the transverse central axis (M), which contains the hole axis and runs transverse to the clamping direction, is greater than the distance (d1, d4) of the tips of both external teeth from the transverse central plane (M).
  2. Cable tapping block according to Claim 1, characterized in that the clamping part (37, 38, 39, 40) has on its clamping side having the teeth (71 to 74) an approximately plane surface (63) which runs at an acute angle to the transverse central axis and out of which the teeth protrude, so that vertically to the hole axis the cross-section of the clamping part is a trapezium.
  3. Cable tapping block according to one of the preceding claims, characterized in that each row (67 to 70) has four teeth (71, 72, 73, 74) situated side by side, of which the outer first tooth (71), whose base point is most remote from the transverse central plane, is surpassed by the adjacent second tooth (72) in the direction perpendicular to the transverse central plane, in that the third tooth (73), situated next to the second tooth (72), has a greater length, measured from the inclined plane (63), than the outer first tooth (71), the distance of the tooth tip of the third tooth (73) from the transverse central plane being smaller than that of the tooth tip of the first tooth (71) therefrom, and in that the fourth outer tooth is longer than the third and the first, but shorter than the second tooth, again in each case measured from the inclined plane, the distance of the tooth tip of the fourth tooth (74) from the transverse central plane being smaller than that of the tooth tips of the other teeth.
  4. Cable tapping block according to Claim 3, characterized in that the tooth flanks enclose an acute angle of not more than approximately 25° with each other.
  5. Cable tapping block according to one of the preceding claims, characterized in that the connecting line (V₇₁) of the central base point of the first tooth (71) to its tooth tip forms an acute angle with the plane which runs through the hole axis of the hole (75) in the clamping direction and is aligned so as to be inclined towards said plane.
  6. Cable tapping block according to Claim 5, characterized in that the connecting line (V₇₂) of the central base point of the second tooth (72) to its tooth tip forms an acute angle with the plane which contains the hole axis and runs in the clamping direction and is aligned so as to be inclined away from said plane.
  7. Cable tapping block according to Claim 6, characterized in that the connecting lines (V₇₃ and V₇₄) of the central base points of the third and fourth tooth (73, 74) to their tooth tips in each case form an acute angle with the plane which contains the hole axis and are aligned so as to be inclined towards said plane.
  8. Cable tapping block according to one of Claims 3 to 7, characterized in that the base width of the teeth which are located between the outer teeth is larger than that of the outer teeth.
  9. Cable tapping block according to one of the preceding claims, characterized in that each clamping part (37, 38; 39, 40) has latching grooves (100, 101), by means of which it can be firmly clamped in the clamping part housing (29, 30).
  10. Cable tapping block according to one of the preceding claims, having four clamping parts, of which in each case two are inserted in a guide body which is accommodated in a U-shaped terminal housing, the two terminal housings being screwed to each other, characterized in that the free legs of the U-shaped terminal housings (11, 12) are provided with openings (19) which allow venting of a casting resin for casting the inter-space between the clamping part housings or terminal housings and the cable cores.
  11. Cable tapping block according to one of the preceding claims, characterized in that the counterpart (44, 45) for the clamping part (37, 38...) is an intermediate wall which is located between in each case two opposite clamping parts.
  12. Cable tapping block according to Claim 11, characterized in that the surfaces on both sides of each intermediate wall (44, 45) have wedge-shaped strips (50, 51) which run transverse to the direction the main cable.
  13. Cable tapping block according to one of the preceding claims, characterized in that a guiding partition (compartment wall 43) is provided between the clamping part (37...) situated side by side.
  14. Cable tapping block according to Claim 13, characterized in that in the case of four clamping parts (37...) in each case one intermediate wall (44, 45) with a projection (67) integrally formed thereon is arranged on both sides of the guide partition (43), which projections engage in a perforation (52) of the guide partition (43) and are guided therein.
  15. Cable tapping block according to one of the preceding Claims 11 to 14, characterized in that at least one groove (58, 59) is provided on the guide partition (43) and/or each intermediate wall (44, 45), into which groove a pilot wire can be inserted which is assigned to the cable into which the teeth are pressed.
EP90118851A 1989-10-07 1990-10-02 Cable tapping device Expired - Lifetime EP0422484B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3933609A DE3933609A1 (en) 1989-10-07 1989-10-07 CABLE BRANCH TERMINAL
DE3933609 1989-10-07

Publications (3)

Publication Number Publication Date
EP0422484A2 EP0422484A2 (en) 1991-04-17
EP0422484A3 EP0422484A3 (en) 1992-04-08
EP0422484B1 true EP0422484B1 (en) 1994-09-21

Family

ID=6391072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90118851A Expired - Lifetime EP0422484B1 (en) 1989-10-07 1990-10-02 Cable tapping device

Country Status (2)

Country Link
EP (1) EP0422484B1 (en)
DE (2) DE3933609A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4312713C2 (en) * 1993-04-20 1997-03-06 Hochspannungs Armaturenwerk Cable branch clamp
DE19539184C3 (en) * 1995-10-20 2002-12-12 Gerhard Petri Gmbh & Co Kg Contact element for generating an electrical contact between the main conductor and branch conductor, and a connecting terminal with this contact element
CN103138063A (en) * 2013-03-01 2013-06-05 浙江左易电力设备有限公司 Clamp for four-core wire branch line
CN117117524B (en) * 2023-10-18 2024-01-12 西安奇盛智能科技有限公司 Quick cable connector for switch cabinet

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1416612A (en) * 1964-10-09 1965-11-05 Pfisterer Elektrotech Karl Branch terminal used to connect the various insulated cores of a multi-conductor cable to branch conductors
GB1260423A (en) * 1968-07-12 1972-01-19 Pfisterer Elektrotech Karl A branch terminal
BE793860A (en) * 1972-03-23 1973-07-10 Bayer Ag CATALYST USED IN PARTICULAR FOR THE REDUCTION OF NITROBENZENE
DE2335654B1 (en) * 1973-07-13 1974-08-08 Pfisterer Elektrotech Karl Branch terminal
BE810230A (en) * 1974-01-28 1974-05-16 BYPASS TERMINAL FOR INSULATED CABLE.
DE7641181U1 (en) * 1976-12-29 1977-04-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Multi-core power cable with connection sleeve
DE3246878A1 (en) * 1982-12-17 1984-06-20 Rema Lipprandt GmbH & Co KG, 5300 Bonn Compact cable junction terminal

Also Published As

Publication number Publication date
DE3933609A1 (en) 1991-04-11
EP0422484A2 (en) 1991-04-17
DE59007233D1 (en) 1994-10-27
EP0422484A3 (en) 1992-04-08

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