EP0125489B1 - Contact device for the connection of electrical cable conductors to bus bars - Google Patents

Contact device for the connection of electrical cable conductors to bus bars Download PDF

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Publication number
EP0125489B1
EP0125489B1 EP84103989A EP84103989A EP0125489B1 EP 0125489 B1 EP0125489 B1 EP 0125489B1 EP 84103989 A EP84103989 A EP 84103989A EP 84103989 A EP84103989 A EP 84103989A EP 0125489 B1 EP0125489 B1 EP 0125489B1
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EP
European Patent Office
Prior art keywords
housing
insulating material
lug
connection
connection lug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84103989A
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German (de)
French (fr)
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EP0125489A3 (en
EP0125489A2 (en
Inventor
Helmut Schweiger
Hermann Grass
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.)
BBC Brown Boveri AG Switzerland
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BBC Brown Boveri AG Switzerland
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Publication date
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Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to AT84103989T priority Critical patent/ATE27385T1/en
Publication of EP0125489A2 publication Critical patent/EP0125489A2/en
Publication of EP0125489A3 publication Critical patent/EP0125489A3/en
Application granted granted Critical
Publication of EP0125489B1 publication Critical patent/EP0125489B1/en
Expired legal-status Critical Current

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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
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/142—Their counterparts

Definitions

  • the invention relates to a contact apparatus for contacting electrical cable conductors with busbars, which essentially consists of an open-ended insulating housing and at least one broad-area connection lug arranged therein, the latter having a pair of spring-loaded contact fingers at one end and with a clamping lug contacting bracket of the cable conductor is equipped at its other end.
  • Such a contact apparatus can be found in EP-A-0 012 455 and is also already used in corresponding systems.
  • a separate holding element is used, which causes the connection lug to be held in its housing in a manner which is at most slightly displaceable.
  • the handling of this holding element is simple, but it is a separate part, which can easily fall down during assembly and can also be lost in the process.
  • the risk that this holding element can slip out due to vibrations, for example during transport cannot be completely ruled out.
  • the object of the present invention is to further simplify the assembly of the contact apparatus and to avoid the risk of improper mounting of the terminal lug inside its insulating material housing. It is also desirable to provide a contact apparatus which, if necessary, can also be subjected to higher current loads without significantly increasing the size of the connecting lugs, because then the bendability of the contact finger pairs to be plugged onto the busbars becomes critical.
  • a flap is formed transversely to the direction of insertion of the connecting lug, which is provided on its freely resilient end region with at least one locking lug, which in turn engages behind an edge of a recess in the connecting lug - preventing its return - and furthermore that the connecting lug has a projection on at least one of its narrow sides, which, in the inserted and latched position of the connecting lug in the insulating housing, abuts a housing projection projecting into the housing interior and thus prevents an insertion movement of the terminal lug beyond the latching position.
  • the freely resilient end of the resilient tab can also be at least slightly tapered compared to its remaining thickness, and the rest of the catch can be located before this tapering begins. This tapering of the outermost free end of the tab offers easy releasability of the terminal lug, by means of a simple knife or screwdriver, i.e. using a simple or even provisional tool.
  • the recess in the connecting lug for receiving the latching lug emanating from the resilient tab it is proposed to arrange it in the area between the pair of contact fingers and the clamping lug and to form it as a completely closed rectangular opening with a clearly uneven aspect ratio, the longitudinal course of the recess being transverse should be located to the direction of insertion of the terminal lug.
  • Such and such a recess provides a comparatively wide support edge for a wide or, for example, two narrower, side-by-side locking lugs, with the result that their load is not excessively large, particularly when the terminal lug is being plugged onto a busbar.
  • the insulating housing of the contact apparatus with regard to the most important inner contours as an approximately tubular part with a longitudinal wall part that divides the pipe cross section in the area of the insertion end for the connecting lug form, from which two cross-sectionally extending, resiliently bendable tabs with latching lugs arranged at their free ends extend; in this case, each of the tabs serves to hold one of two connecting lugs opposite one another in mirror image with their broad sides.
  • two connection lugs can be arranged within one and the same insulating material housing, whereby - at least when the cable conductors are connected in parallel - the current carrying capacity of the contact apparatus is practically doubled.
  • the proposal is to provide ribs directed from the insulating material housing into the interior of the housing or instead to emboss grooves in the walls of the insulating material housing which adjoin the lateral edges of the connecting lugs to be accommodated.
  • the housing protrusion can be provided at the ends of the respective rib or said groove (always seen in the direction of insertion) against which the associated protrusion of the connecting lug, which prevents its further insertion, strikes. If such a housing projection is combined with the adjacent rib in terms of material, there is a particularly favorable value with regard to the load-bearing capacity of the housing projection. The risk of a housing projection of this type breaking off is thus practically excluded even when the impact load is not intended as such.
  • an insulating housing for a contact apparatus of the type in question design of an insulating housing for a contact apparatus of the type in question can be seen in giving the said housing a box-like shape, of which a single or multi-channel connector for receiving one or more terminal lugs lying one by one with the narrow sides or one or more terminal lugs arranged in pairs next to one another.
  • a resilient tab formed on a channel wall or a transverse wall with at least one latching lug can be arranged on the freely resilient end region within the or each channel of the single-channel or multi-channel connector, whereby it is provided that insert a connection lug within each channel and lock it using the latch.
  • means for connection to adjacent insulating material housings of the same design can also be formed on the insulating material housing, in particular inclined projections, which allow a plug connection of adjacent insulating material housings according to the known dovetail principle.
  • Comparable means and forms can be found in the aforementioned EP-A-0 012 455 and therefore no longer new per se, not even for contact devices of the particular genre in question here.
  • a particularly well-designed, and at the same time very essential, training option for contact apparatuses in accordance with the present invention can be seen in the proposed idea of designing the insulating housing for receiving one or more connecting lugs as a molded-on component of an insulating part, the latter being of a greater dimension than it is for accommodating the provided connecting lugs is required, and which serves other functions, namely in particular as a slide-in wall, as a frame wall for slide-in cabinets, as a device housing or the like.
  • these contact devices can also be directly attached to large-area insulating material parts, in the sense of being molded onto these insulating material parts.
  • the insulating device serving the contact apparatus regardless of whether it is a single-pole or multi-pole separate contact apparatus or a construction as mentioned last, on its end surrounding the contact finger pairs of the connecting lugs on opposite walls with slot-like walls to provide recesses which are in the same direction as the slots formed between the pairs of contact fingers, but are at least slightly wider than these slots, and permit a continuous straight course of busbars to be contacted with the terminal lugs.
  • This has the advantage that the contact point between the busbar and the terminal lug to be plugged on is largely surrounded by the housing in a protective manner.
  • connection lug 2 already equipped with a cable conductor 1 for a contact apparatus according to the present invention.
  • this terminal lug 2 has a pair of contact fingers 3 and 4 at its end pointing to the right in the illustration, and at its opposite end an originally flat and jagged terminal lug 5, which is now clawed to the cable conductor 1, by means of a cable-shaped spring clip 6, the contact fingers 3 and 4 are pressed towards one another, the free ends of the spring clip 6 engaging on webs 7 and 8 which are bent out toward the viewer.
  • this connecting lug 2 additionally has two characteristic features, namely projections 9 and 10 on their narrow sides, and a rectangular opening 11 with a clearly unequal aspect ratio, the longitudinal profile of this rectangular opening 11 being transverse to the longitudinal extension or also to the direction of insertion the terminal lug 2 is located.
  • the projections 9 and 10 just mentioned are created by notching in the area of the contact fingers 3 and 4.
  • the slit 12 and an elongated hole 13 in the connecting lug 2 Bendability of the contact fingers 3 and 4 is improved or facilitated.
  • FIG 2 a portion of an insulating housing 14 is shown cut open, and that is equipped with the connecting lug 2 shown separately in Fig. 1. It should also be noted that this connecting lug 2 is plugged onto a busbar 15, the rectangular cross-section of which - hatched - can be seen . Furthermore, it can be seen from this illustration that the projections 9 and 10 on the terminal lug 2 abut housing projections 16 and 17 projecting into the interior of the insulating material housing 14, so that further insertion of the terminal lug 2 into the insulating material housing 14 is prevented.
  • FIG. 3a in addition to the two tabs 21 and 22, one finds here the wall part 20 as well as the housing projection 16 and the rib 18 starting from this housing projection 16 or molded together with it. Approximately opposite, if somewhat in the longitudinal direction moved, a further housing projection 23 and a rib 24 corresponding to the rib 18 can be seen. It should also be mentioned that further ribs 25 and 26 extend from the housing projection 16 as well as from the housing projection 23, which ultimately serve the same purpose as the aforementioned ribs 18, 19 and - underneath - 24. All of these ribs serve - as already mentioned - the leadership of the terminal lug 2 and finally their position.
  • tabs 21 and 22 are very important, because they each have a latching cam 27 or 28 in the region of their freely resilient end and finally end in a slight taper 29 and 30.
  • This latching cam 27 on the tab 21 causes Inserting the terminal lug 2 in the direction of arrow 31 (indicated in FIG. 3a on the left of the insulating material housing 14) firstly a bending of the tab 21, as is indicated in FIG. 3b. A further insertion of the terminal lug 2 finally leads to its latching with the latching cam 27, which snaps into the rectangular opening 11 already mentioned in the terminal lug 2, which is illustrated in FIG. 3c.
  • This Figure 3c also shows the final assembled position of the terminal lug 2, which due to its stop on the housing projections 16 and 17 (see Fig. 2) can not be inserted further than shown, but which also, due to the latching of the locking cam 27, not can be traced back.
  • a return of the terminal lug 2 is still possible, namely by gripping behind the taper 29 with a simple tool, for example with a knife or a screwdriver, the tab 21 is bent into the position shown in FIG. 3b and the terminal lug 2 is pushed back becomes.
  • connection lug 2 which can again be seen here, has thus already assumed and maintained its position as shown in FIG. 3c, a further connection lug 32 can be seen in its not yet fully inserted position, the second tab 22 now bending with its latching cam 28.
  • the connecting lug 32 Upon further insertion of the connecting lug 32, as with the connecting lug 2, the locking cam 28 will engage in a rectangular opening 33 of the connecting lug 32 and thus fulfill the holding and locking function already described.
  • the connecting lug 32 can be inserted a little deeper into the insulating housing 14, because of the somewhat longitudinally displaced position of the housing projection 23 and the locking cam 28.
  • FIG. 4 illustrates in a longitudinal section an insulating material housing 34, which could roughly correspond to the one as indicated in FIGS. 2 and 3a to 3d. It has an essentially tubular shape, the insertion area for two connecting lugs pointing to the left in the illustration being in turn penetrated by a wall part 35. Tabs 36 and 37 extend from this wall part 35 and run in a fork-like manner to one another in the cross section shown. Each of these tabs 36 and 37 is with a locking cam 38 and 39 provided, the meaning and function of which has already been explained in detail in connection with the individual representations of FIGS. It may also be worth mentioning that the tab 37 is longer than the other tab 36, and the locking cam 39 is also offset from the opposite locking cam 38.
  • protruding housing projections 40 and 41 are formed in the interior of the insulating housing 34, which serve as stops for the terminal lugs to be received.
  • FIG. 5 illustrates a top view of the insulating material housing 34.
  • FIG. 5 illustrates a top view of the insulating material housing 34.
  • the end of the insulating material housing 34 which points towards the right in the illustration has recesses 46 and 47 (see also FIG. 4) which serve for the passage of current busbars, or in other words: are necessary when one - As happened in the present case - the insulating housing 34 would like to protect around the ends of the terminal lugs to be contacted with the busbars to be accommodated.
  • FIG. 6 shows a section VI-VI, the course of which is indicated in FIG. 4. Recognizable here inside the wall part 35 with the tab 36 extending therefrom, further the housing projection 40 and a further housing projection 48, the recess 47 and ribs 49 and 50 not previously mentioned for guiding and fixing the position of a connecting lug. Otherwise, the oblique projections 42 to 45, the meaning of which has already been explained, can also be seen in this sectional illustration.
  • FIG. 7 A section VII-VII, the course of which is indicated in FIG. 5, is illustrated in FIG. 7.
  • FIG. 8 illustrates a view of the insulating material housing 34 that is made in the opposite direction to the sectional view just mentioned, that is to say a side view of the illustration in FIG. 5.
  • the fastening tabs 53 and 54 can be seen from their other side, and the wall part again for the rest 35 and the mutually bendable tabs 36 and 37.
  • FIG. 9 shows an opposite view (view A according to arrow A in FIG. 6), which requires no further explanation, except for the reference to the numbered recesses 46 and 47.
  • An insulating material housing such as the one just described (34) can accommodate two connection lugs according to FIG. 1, and, as already said, in the manner in which this can be seen from FIGS. 2 and 3a to 3d.
  • FIGS. 10 to 12 A differently designed insulating material housing 55 is shown in FIGS. 10 to 12.
  • this first has a box-shaped area 56, from which a multi-channel connecting piece 57 now emanates.
  • This multi-channel connecting piece 57 contains three channels 58 to 60 which are closed off on the side, which in turn can be seen from FIG. 10 and the sectional view in FIG. 11. It is essential here that each of the channels 58 to 60 has a raised wall 61, from each of which a tab 62 (see FIG. 11) extends.
  • This particular area within each of the channels 58 through 60 is shown again on an enlarged scale in FIG.
  • this tab 62 also corresponds in terms of its design and position to those tabs as have been shown in the exemplary embodiments explained above, and it also has the same task: namely to latch a connecting lug not indicated in these representations and to hold it in place Fix location.
  • ribs 64 and housing projections 65 also cooperate.
  • Introduction and fixation of terminal lugs which can practically correspond to those shown in FIG. 1, require no further explanation. All that is said is that instead of a paired arrangement of terminal lugs, only one terminal lug can be arranged in this insulating material housing 55 in each of the channels 58 to 60 mentioned.
  • this insulating material housing 55 is also provided with fastening means 66 and 67 in the form of molded ears and threaded bushings contained therein.
  • the paired arrangement of connecting lugs can also be realized with appropriate design of the wall parts and paired tabs 62.
  • FIGS. 14, 15, 16 and 17 illustrate an idiosyncratic modification with regard to the design of insulating material housings of contact apparatuses of the type in question.
  • FIG. 14 shows a rear wall, broken out in the middle, of a slide-in unit for a control cabinet or the like, insulating housing for contact apparatuses being molded on at the same time.
  • the insulating material housings for the individual contact devices are therefore ultimately a material component of the slide-in rear wall, designated by the way with the number 68. It can be seen that three channel-like housing areas 69, 70 and 71 are integrally formed on the side pointing to the right in FIG. 14, and also further channel-like housing areas 72, 73 and 74.
  • the sectional views in FIGS. 15 and 16, the section of which can be seen from FIG. 14, illustrate the design of the channel-like housing areas 69, 70 and 71, the sectional view in FIG. 17, however, shows a section through the channel-like housing area 72 on the underside of the insert rear wall 68.
  • the last-mentioned FIG. 17 is shown on an enlarged scale compared to the representations according to FIGS.
  • FIGS. 14 to 17 inclusive The housing areas 85 and 86 serving the contact apparatus can be seen here, which, to say it again, are part of the insert rear walls 83 and 84 made of insulating material.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Insulated Conductors (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Communication Cables (AREA)
  • Multi-Conductor Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

1. Contact apparatus for the contacting of electrical cable conductors (1) with busbars (15), consisting substantially of a housing of insulating material (14), open at both ends, and of at least one connection lug (2) of large surface area, with at its one end a pair of contact fingers (3, 4) pressed resiliently together and with at its other end a clamping lug (5) for the contacting retention of the cable conductor (1), characterized in that a deflecting tab (21, 22) is attached transversely to the direction of introduction of the connection lug in a wall (20) of the housing of insulating material (14) running approximately parallel to the broad sides of the connection lug (2), which tab is provided in its freely yielding end region with at least one catch (27, 28), which for its part engages behind an edge of a recess (11) in the connection lug - preventing its return - and in that the connection lug has on at least one of its narrow sides a projection (9, 10) which, in the inserted and engaged position of the connection lug in the housing of insulating material (14) comes up against a housing projection (16, 17) protruding into the housing interior and thus prevents an introductory movement of the connection lug going beyond the engagement position.

Description

Die Erfindung bezieht sich auf einen zur Kontaktierung elektrischer Kabelleiter mit Sammelschienen dienenden Kontaktapparat, welcher im wesentlichen aus einem beidendig offenen Isolierstoffgehäuse und aus wenigstens einer darin angeordneten breitflächigen Anschlußfahne besteht, welch letztere mit einem federnd aufeinanderzu gedrückten Kontaktfingerpaar an ihrem einen Ende und mit einer Klemmfahne zur kontaktierenden Halterung des Kabelleiters an ihrem anderen Ende ausgestattet ist.The invention relates to a contact apparatus for contacting electrical cable conductors with busbars, which essentially consists of an open-ended insulating housing and at least one broad-area connection lug arranged therein, the latter having a pair of spring-loaded contact fingers at one end and with a clamping lug contacting bracket of the cable conductor is equipped at its other end.

Ein derartiger Kontaktapparat ist der EP-A- 0 012 455 zu entnehmen und findet im übrigen bereits bei entsprechenden Anlagen Anwendung. Bei diesem bekannten Kontaktapparat findet ein gesondertes Halteelement Verwendung, welche die höchstens geringfügig verschiebliche Halterung der Anschlußfahne in ihrem Gehäuse bewirkt. Die Handhabung dieses Halteelementes ist zwar einfach, allerdings stellt es ein gesondertes Teil dar, welches bei der Montage leicht herunterfallen und hierbei auch verlorengehen kann. Im übrigen ist die Gefahr nicht ganz auszuschließen, daß dieses Halteelement infolge von Erschütterungen, beispielsweise beim Transport, herausglelten kann.Such a contact apparatus can be found in EP-A-0 012 455 and is also already used in corresponding systems. In this known contact apparatus, a separate holding element is used, which causes the connection lug to be held in its housing in a manner which is at most slightly displaceable. The handling of this holding element is simple, but it is a separate part, which can easily fall down during assembly and can also be lost in the process. In addition, the risk that this holding element can slip out due to vibrations, for example during transport, cannot be completely ruled out.

Aufgabe der vorliegenden Erfindung ist es, die Montage des Kontaktapparates weiter zu vereinfachen und die Gefahr einer nicht ordnungsgemäßen Halterung der Anschlußfahne innerhalb ihres Isolierstoffgehäuses unbedingt zu vermeiden. Wünschenswert ist es darüber hinaus, einen Kontaktapparat zu schaffen, welcher im Bedarfsfalle auch höheren Strombelastungen ausgesetzt werden kann, ohne das Ausmaß der Anschlußfahnen wesentlich zu vergrößern, weil dann die Ausbiegbarkeit der auf die Stromsammelschienen aufzusteckenden Kontaktfingerpaare kritisch wird.The object of the present invention is to further simplify the assembly of the contact apparatus and to avoid the risk of improper mounting of the terminal lug inside its insulating material housing. It is also desirable to provide a contact apparatus which, if necessary, can also be subjected to higher current loads without significantly increasing the size of the connecting lugs, because then the bendability of the contact finger pairs to be plugged onto the busbars becomes critical.

Die Lösung der erstgenannten Aufgabe wird erfindungsgemäß dadurch erzielt, daß in einer etwa parallel zu den Breitseiten der Anschlußfahne verlaufenden Wandung des tsbtierstoffgehäuses eine quer zur Einführrichtung der Anschlußfahne ausfedernde Lasche angeformt ist, die an ihrem frei federnden Endbereich mit wenigstens einer Rastnase versehen ist, welche ihrerseits hinter einer Kante einer Ausnehmung in der Anschlußfahne - deren Rückführung verhindernd - einrastet, und weiterhin, daß die Anschlußfahne an wenigstens einer ihrer Schmalseiten einen Vorsprung aufweist, welcher in eingefügter und eingerasteter Lage der Anschlußfahne im Isolierstoffgehäuse an einen in das Gehäuseinnere ragenden Gehäusevorsprung anstößt und somit eine über die Einraststellung hinausgehende Einführbewegung der Anschlußfahne verhindert.The solution of the first-mentioned object is achieved according to the invention in that in a wall running approximately parallel to the broad sides of the connecting lug of the tsbtierstoffgehäuses a flap is formed transversely to the direction of insertion of the connecting lug, which is provided on its freely resilient end region with at least one locking lug, which in turn engages behind an edge of a recess in the connecting lug - preventing its return - and furthermore that the connecting lug has a projection on at least one of its narrow sides, which, in the inserted and latched position of the connecting lug in the insulating housing, abuts a housing projection projecting into the housing interior and thus prevents an insertion movement of the terminal lug beyond the latching position.

Es wird also hierbei auf ein zusätzliches Halteelement für die Anschlußfahne innerhalb ihres Isolierstoffgehäuses ganz verzichtet, wodurch nicht nur ein Verlieren dieses Halteelementes ausgeschlossen wird, sondern darüber hinaus auch die Gefahr eines unbeabsichtigten Herausgleitens des Halteelementes absolut verhindert ist. Einem vorteilhaften Vorschlag zufolge kann das frei federnde Ende der ausfedernden Lasche zudem gegenüber ihrer übrigen Dicke wenigstens geringfügig verjüngt werden und im übrigen die Rastnase vor Beginn dieser Verjüngung gelegen sein. Diese Verjüngung des äußersten freien Endes der Lasche bietet eine einfache Entrastbarkeit der Anschlußfahne, und zwar mittels eines einfachen Messeres oder Schraubendrehers, d.h. also mittels eines einfachen oder sogar provisorischen Werkzeuges.There is therefore no need for an additional holding element for the connecting lug within its insulating material housing, which not only prevents loss of this holding element, but also completely prevents the danger of the holding element sliding out unintentionally. According to an advantageous proposal, the freely resilient end of the resilient tab can also be at least slightly tapered compared to its remaining thickness, and the rest of the catch can be located before this tapering begins. This tapering of the outermost free end of the tab offers easy releasability of the terminal lug, by means of a simple knife or screwdriver, i.e. using a simple or even provisional tool.

Weitere vorteilhafte Ausgestaltungsmöglichkeiten befassen sich zunächst mit der Gestaltung der Anschlußfahne. So wird beispielsweise vorgeschlagen, die Anschlußfahne an ihren beiden Schmalseiten mit je einem Vorsprung auszustatten, welche beide in der in das Isolierstoffgehäuse eingefügten und hierin eingerasteten Lage der Anschlußfahne an entsprechende Gehäusevorsprünge anstoßen. Hiermit kann eine Schiefstellung der Anschlußfahne beim Aufstecken auf eine Stromsammelschiene vermieden und zudem die Belastung des einzelnen Gehäusevorsprunges deutlich verringert werden.Further advantageous design options first deal with the design of the connecting lug. For example, it is proposed to provide the terminal lug with a projection on each of its two narrow sides, both of which abut corresponding housing projections in the position of the terminal lug inserted into the insulating housing and locked therein. This can prevent the terminal lug from slanting when it is plugged onto a busbar and also significantly reduces the load on the individual housing projection.

Weiterhin wird vorgeschlagen, die Vorsprünge an den Anschlußfahnen durch Ausklinkung ihrer beim Einführvorgang voreilenden schmalseitigen Randungsbereiche zu bilden, was gleichzeitig der Ausbiegbarkeit des jeweiligen Kontaktfingerpaares entgegenkommt.Furthermore, it is proposed to form the projections on the connecting lugs by notching their narrow-side edge regions which advance during the insertion process, which at the same time accommodates the deflectability of the respective pair of contact fingers.

Was die Ausnehmung in der Anschlußfahne zur Aufnahme der von der federnden Lasche ausgehenden Rastnase betrifft, so wird vorgeschlagen, diese im Bereich zwischen dem Kontaktfingerpaar und der Klemmfahne anzuordnen und sie als ringsum geschlossene Rechtecköffnung mit einem deutlich ungleichen Seitenverhältnis auszubilden, wobei der Längsverlauf der Ausnehmung quer zur Einführrichtung der Anschlußfahne gelegen sein soll. Eine derartige und derart gelegene Ausnehmung bietet eine vergleichsweise breite Abstützkante für eine breite oder beispeilsweise zwei schmälere, nebeneinander gelegene Rastnasen, womit erreicht wird, daß auch deren Belastung insbesondere beim Aufsteckvorgang der Anschlußfahne auf eine Stromsammelschiene nicht übermäßig groß ist.As for the recess in the connecting lug for receiving the latching lug emanating from the resilient tab, it is proposed to arrange it in the area between the pair of contact fingers and the clamping lug and to form it as a completely closed rectangular opening with a clearly uneven aspect ratio, the longitudinal course of the recess being transverse should be located to the direction of insertion of the terminal lug. Such and such a recess provides a comparatively wide support edge for a wide or, for example, two narrower, side-by-side locking lugs, with the result that their load is not excessively large, particularly when the terminal lug is being plugged onto a busbar.

Weitere vorteilhafte Ausgestaltungsmöglichkeiten beziehen sich auf das Isolierstoffgehäuse. Zunächst einmal wird vorgeschlagen, das Isolierstoffgehäuse des Kontaktapparates hinsichtlich der wesentlichsten Innenkonturen als ein etwa rohrförmiges Teil mit einem längsverlaufenden, den Rohrquerschnitt im Bereich des Einführendes für die Anschlußfahne teilenden Wandungsteil auszubilden, von welchem zwei in Querschnitt gabelartig verlaufende, zueinander federnd ausbiegbare Laschen mit an ihren freien Enden angeordneten Rastnasen ausgehen; hierbei dient jede der Laschen der Halterung einer von zwei spiegelbildlich mit ihren Breitseiten gegenüberliegenden Anschlußfahnen. Gemäß dieser vorgeschlagenen Konstruktion sind innerhalb ein und desselben Isolierstoffgehäuses zwei Anschlußfahnen anordenbar, wodurch - jedenfalls wenn die Kabelleiter parallel geschaltet werden - die Strombelastbarkeit des Kontaktapparates praktisch verdoppelt wird. Eine solche konstruktive Lösung erreicht das wünschenswerte Ziel einer höheren Strombelastbarkeit eines Kontaktapparates, wobei das Ausmaß der Anschlußfahnen nicht vergrößert, allerdings ihre Anzahl verdoppelt wird. Tritt eine derartige Strombelastung hingegen nicht auf, so können die einzelnen Kabelleiter unterschiedlichen Versorgungssträngen dienen, was immer noch den Vorteil einer Platzersparnis einbringt.Further advantageous design options relate to the insulating material housing. First of all, it is proposed that the insulating housing of the contact apparatus with regard to the most important inner contours as an approximately tubular part with a longitudinal wall part that divides the pipe cross section in the area of the insertion end for the connecting lug form, from which two cross-sectionally extending, resiliently bendable tabs with latching lugs arranged at their free ends extend; in this case, each of the tabs serves to hold one of two connecting lugs opposite one another in mirror image with their broad sides. According to this proposed construction, two connection lugs can be arranged within one and the same insulating material housing, whereby - at least when the cable conductors are connected in parallel - the current carrying capacity of the contact apparatus is practically doubled. Such a constructive solution achieves the desirable goal of a higher current carrying capacity of a contact apparatus, the size of the connecting lugs not being increased, but the number being doubled. However, if such a current load does not occur, the individual cable conductors can serve different supply lines, which still brings the advantage of saving space.

Eine besonders vorteilhafte Gestaltung ist in dem Vorschlag zu sehen, bei der letztgenannten Konstruktion mit zwei Laschen, deren freie Enden und deren Rastnasen in Einführrichtung der Anschlußfahne wenigstens geringfügig zueinander zu versetzen, und zwar sollte die Versetzung eine Größenordnung von 3 bis 6 mm betragen. Hierdurch wird das Aufstecken des Kontaktapparates auf eine Stromsammelschiene wesentlich erleichtert, da nun nicht beide Kontaktfingerpaare gleichzeitig auf die Breite der Stromsammelschiene auszuweiten sind (was einer erhöhten Aufsteckkraft bedarf), sondern dieses geschieht eben gezielt nacheinander.A particularly advantageous design can be seen in the proposal to offset at least slightly in the latter construction with two tabs, the free ends and the catches of which in the insertion direction of the connecting lug, and the offset should be of the order of 3 to 6 mm. This makes it much easier to plug the contact apparatus onto a busbar, since it is now not necessary to expand both pairs of contact fingers to the width of the busbar at the same time (which requires an increased insertion force), but this is done specifically in succession.

In erster Linie einer Verbesserung der Halterung der Anschlußfahne innerhalb des Isolierstoffgehäuses sowie einer Vereinfachung des Montagevorganges dient der Vorschlag, vom Isolierstoffgehäuse ins Gehäuseinnere gerichtete Rippen vorzusehen oder stattdessen in die Wandungen des Isolierstoffgehäuses Nuten einzuprägen, welche an die seitlichen Randungen der aufzunehmenden Anschlußfahnen angrenzen. Hierbei kann - gemäß einem ergänzenden Ausgestaltungsvorschlag - an den (stets in Einführrichtung gesehen) Enden der jeweiligen Rippe bzw. der besagten Nut derjenige Gehäusevorsprung vorgesehen sein, an welchen der zugeordnete Vorsprung der Anschlußfahne, deren weitere Einführung verhindernd, anschlägt. Ist ein solcher Gehäusevorsprung mit der angrenzenden Rippe materialmäßig vereint, so ergibt sich ein besonders günstiger Wert hinsichtlich der Belastbarkeit des Gehäusevorsprunges. Die Gefahr eines Abbrechens eines derartigen Gehäusevorsprunges ist somit auch bei einer an sich nicht vorgesehenen Schlagbelastung praktisch ausgeschlossen.First and foremost, to improve the mounting of the terminal lug within the insulating material housing and to simplify the assembly process, the proposal is to provide ribs directed from the insulating material housing into the interior of the housing or instead to emboss grooves in the walls of the insulating material housing which adjoin the lateral edges of the connecting lugs to be accommodated. In this case, according to a supplementary design suggestion, the housing protrusion can be provided at the ends of the respective rib or said groove (always seen in the direction of insertion) against which the associated protrusion of the connecting lug, which prevents its further insertion, strikes. If such a housing projection is combined with the adjacent rib in terms of material, there is a particularly favorable value with regard to the load-bearing capacity of the housing projection. The risk of a housing projection of this type breaking off is thus practically excluded even when the impact load is not intended as such.

Eine für bestimmte Bedarfsfälle sehr zweckmäßige, jedoch von den vorher genannten Gestaltungsvorschlägen stärker abweichende Ausgestaltung eines Isolierstoffgehäuses für einen Kontaktapparat der zur Rede stehenden Art ist darin zu sehen, dem besagten Gehäuse eine kastenförmige Gestalt zu geben, von welcher ein ein- oder mehrkanaliger Stutzen zur Aufnahme eines oder mehrerer einzeln mit den Schmalseiten nebeneinander liegender oder eines bzw. mehrerer jeweils paarweise nebeneinander anordenbarer Anschlußfahnen ausgeht. Hierbei kann - so ein ergänzender Vorschlag - innerhalb des bzw. jedes Kanals des ein- bzw. mehrkanaligen Stutzens jeweils eine an einer Kanalwandung oder einer Querwandung angeformte ausfedernde Lasche mit wenigstens einer Rastnase an ihrem frei federnden Endbereich angeordnet sein, wobei es also vorgesehen ist, innerhalb jedes Kanals eine Anschlußfahne einzufügen und mittels der genannten Rastnase zu verrasten. Stattdessen ist es - so ein anderer Ergänzungsvorschlag - auch möglich, innerhalb des bzw. innerhalb jedes Kanals des ein- bzw. mehrkanaligen Stutzens einen Quersteg anzuformen, von welchem zwei im Querschnitt gabelartig verlaufende, zueinander federnd ausbiegbare Laschen mit an ihren freien Enden angeordneten Rastnasen ausgehen; hierbei dient jede der Laschen der Halterung einer von zwei spiegelbildlich mit ihren Breitseiten gegenüberliegenden Anschlußfahnen. Eine Konstruktion, wie sie in den letztgenannten Vorschlägen zum Ausdruck kommt, stellt, vereinfacht gesagt, eine Art Vielfachsteckvorrichtung dar, welche sich der erfindungsgemäßen Merkmale bedient. Ein wesentlicher Vorteil solcher mehrpoliger Kontaktapparate liegt in der Raumersparnis und letzten Endes auch Materialersparnis, wobei noch der Vorteil eines einzigen in sich sehr stabilen Isolierstoffgehäuses für einen mehrpoligen Kontaktapparat hinzukommt.A very useful for certain needs, but more different from the aforementioned design proposals design of an insulating housing for a contact apparatus of the type in question can be seen in giving the said housing a box-like shape, of which a single or multi-channel connector for receiving one or more terminal lugs lying one by one with the narrow sides or one or more terminal lugs arranged in pairs next to one another. According to a supplementary proposal, a resilient tab formed on a channel wall or a transverse wall with at least one latching lug can be arranged on the freely resilient end region within the or each channel of the single-channel or multi-channel connector, whereby it is provided that insert a connection lug within each channel and lock it using the latch. Instead, it is - according to another proposed addition - also possible to form a transverse web within or within each channel of the single-channel or multi-channel connector, from which two cross-sectionally forked, resiliently bendable tabs with latching lugs arranged at their free ends start ; in this case, each of the tabs serves to hold one of two connecting lugs opposite one another in mirror image with their broad sides. A construction, as expressed in the last-mentioned proposals, represents, put simply, a kind of multiple plug device which makes use of the features according to the invention. A major advantage of such multi-pole contact apparatuses is the space saving and, ultimately, material savings, with the advantage of a single, very stable insulating material housing for a multi-pole contact apparatus.

Zweckmäßige Weiterbildungen an Isolierstoffgehäusen sowohl der zuletzt als auch der vorher genannten Grundausbildung zielen auf die Befestigungstechnik solcher Gehäuse ab. So wird beispielsweise vorgeschlagen, am jeweiligen Isolierstoffgehäuse Mittel in Form von mit Befestigungsöffnungen oder Befestigungsschlitzen versehenen Laschen oder Einbuchtungen, oder in Form von Rastnasen oder dergleichen anzuformen, welche der Aufnahme und Befestigung des Isolierstoffgehäuses an Tragwandungen, Gerüsten oder Geräteeinschüben dienen.Appropriate further training on insulating material housings of both the last and the aforementioned basic training aim at the fastening technology of such housings. For example, it is proposed to form means on the respective insulating material housing in the form of tabs or indentations provided with fastening openings or fastening slots, or in the form of latching noses or the like, which serve to receive and fasten the insulating material housing on supporting walls, scaffolding or device racks.

Stattdessen oder zusätzlich zu den eben genannten Mittel können, wie ein weiterer vorteilhafter Vorschlag besagt, am Isolierstoffgehäuse auch Mittel zur Verbindung mit benachbarten Isolierstoffgehäusen gleicher Ausbildung angeformt werden, insbesondere schrägstehende Vorsprünge, welche eine Steckverbindung einander benachbarter Isolierstoffgehäuse nach dem an sich bekannten Schwalbenschwanzprinzip gestattet. Vergleichbare Mittel und Ausformungen sind der bereits genannten EP-A- 0 012 455 zu entnehmen und somit an sich nicht mehr neu, auch nicht für Kontaktapparate der besonderen hier zur Rede stehenden Gattung.Instead of or in addition to the means just mentioned, as a further advantageous suggestion, means for connection to adjacent insulating material housings of the same design can also be formed on the insulating material housing, in particular inclined projections, which allow a plug connection of adjacent insulating material housings according to the known dovetail principle. Comparable means and forms can be found in the aforementioned EP-A-0 012 455 and therefore no longer new per se, not even for contact devices of the particular genre in question here.

Eine besonders geartete, gleichzeitig auch sehr wesentliche Ausbildungsmöglichkeit von Kontaktapparaten gemäß der vorliegenden Erfindung ist in dem vorgeschlagenen Gedanken zu sehen, das Isolierstoffgehäuse zur Aufnahme einer oder mehrere Anschlußfahnen als angeformten Bestandteil eines Isolierstoffteiles auszubilden, welch letzteres größere Ausmaßes ist, als es für die Aufnahme der vorgesehenen Anschlußfahnen erforderlich ist, und welches weiteren Funktionen dient, nämlich insbesondere als Einschubwandung, als Gestellwandung für Einschubschränke, als Gerätegehäuse oder dergleichen. Mit anderen Worten: anstatt einen oder mehrere gesonderte Kontaktapparate Einschüben, Gerätegehäusen, Gestellwandungen oder Schrankteilen zuzuordnen, können diese Kontaktapparate auch größerflächigen Isolierstoffteilen unmittelbar angegliedert werden, und zwar im Sinne einer Anformung an diese Isolierstoffteile. Ein solches Vorgehen ist natürlich nur dann sinnvoll, wenn entsprechende Stückzahlen anfallen, ist dieses aber gegeben, so liegen die Vorteile der Integration von Isolierstoffgehäusen für Kontaktapparate in Teilen mit weiteren Funktionen auf der Hand: es sind keine besonderen Verbindungen mehr erforderlich, die Anzahl der zu montierenden Teile wird deutlich verringert und im übrigen vermögen diejenigen Wandungsteile, welche als Isolierstoffgehäuse für die Kontaktapparate dienen, das jeweilige Gesamt-Isolierstoffteil zu versteifen und dessen Raumausnutzung zu verbessern. Übrigens können einem größeren Isolierstoffteil, wie es eben beschrieben wurde, durchaus mehrere, gegebenenfalls auch gruppenweise angeordnete Gehäusebereiche zur Bildung von Kontaktapparaten und somit zur Aufnahme von Anschlußfahnen ausgeformt sein.A particularly well-designed, and at the same time very essential, training option for contact apparatuses in accordance with the present invention can be seen in the proposed idea of designing the insulating housing for receiving one or more connecting lugs as a molded-on component of an insulating part, the latter being of a greater dimension than it is for accommodating the provided connecting lugs is required, and which serves other functions, namely in particular as a slide-in wall, as a frame wall for slide-in cabinets, as a device housing or the like. In other words: Instead of assigning inserts, device housings, frame walls or cabinet parts to one or more separate contact devices, these contact devices can also be directly attached to large-area insulating material parts, in the sense of being molded onto these insulating material parts. Of course, such a procedure only makes sense if there are appropriate quantities, but if this is the case, the advantages of integrating insulating material housings for contact devices in parts with other functions are obvious: there are no special connections required, the number of mounting parts is significantly reduced and, in addition, those wall parts which serve as an insulating material housing for the contact apparatus can stiffen the respective total insulating material part and improve its space utilization. Incidentally, a larger part of the insulating material, as has just been described, may have several housing areas, possibly also arranged in groups, to form contact apparatuses and thus to accommodate terminal lugs.

Schließlich wird vorgeschlagen, das dem Kontaktapparat dienende Isolierstoffgehäuse, unabhängig davon, ob es sich um einen ein- oder mehrpoligen gesonderten Kontaktapparat handelt oder um eine Konstruktion, wie sie zuletzt erwähnt wurde, an seinem die Kontaktfingerpaare der Anschlußfahnen umgebenden Ende an einander gegenüberliegenden Wandungen mit schlitzartigen Ausnehmungen zu versehen, welche gleichsinnig mit den zwischen den Kontaktfingerpaaren gebildeten Schlitzen gelegen, jedoch wenigstens geringfügig breiter als diese Schlitze ausgebildet sind, und einen durchgehend geraden Verlauf von mit den Anschlußfahnen zu kontaktierenden Stromschienen gestatten. Hierdurch ergibt sich der Vorteil, daß die Kontaktstelle zwischen Stromsammelschiene und darauf aufzusteckender Anschlußfahne weitgehend vom Gehäuse schützend umgeben ist.Finally, it is proposed that the insulating device serving the contact apparatus, regardless of whether it is a single-pole or multi-pole separate contact apparatus or a construction as mentioned last, on its end surrounding the contact finger pairs of the connecting lugs on opposite walls with slot-like walls To provide recesses which are in the same direction as the slots formed between the pairs of contact fingers, but are at least slightly wider than these slots, and permit a continuous straight course of busbars to be contacted with the terminal lugs. This has the advantage that the contact point between the busbar and the terminal lug to be plugged on is largely surrounded by the housing in a protective manner.

In zahlreichen figürlichen Darstellungen werden Ausführungsbeispiele für die Realisierung des Erfindungsgedankens sowie auch Anwendungsmöglichkeiten des Erfindungsgegenstandes veranschaulicht. Anhand dieser Darstellungen und der nachfolgenden Beschreibung hierzu sollen der Erfindungsgedanke und seine vorteilhaften Ausbildungsmöglichkeiten noch einmal erläutert und verdeutlicht werden.In numerous figurative representations, exemplary embodiments for realizing the inventive idea as well as possible uses of the subject matter of the invention are illustrated. On the basis of these representations and the following description, the idea of the invention and its advantageous training possibilities are to be explained and clarified again.

Es zeigt:

  • Fig. 1 in einer Draufsicht eine Anschlußfahne für einen Kontaktapparat,
  • Fig. 2 einen Schnitt durch einen Teilbereich eines Kontaktapparates mit darin angeordneter Anschlußfahne, in auf einer Stromsammelschiene montierter Lage der Kontaktvorrichtung,
  • Fig. 3 in vier Einzeldarstellungen "a" bis "d" die Montagephasen für zunächst eine und schließlich eine zweite Anschlußfahne im Gehäuse der in Fig. 2 angedeuteten Kontaktvorrichtung,
  • Fig. 4 bis 9 Schnittdarstellungen und Ansichten eines mit zwei Anschlußfahnen bestückbaren Isolierstoffgehäuses für einen Kontaktapparat,
  • Fig. 10 bis 12 Schnittdarstellungen und die Vorderansicht eines anders gearteten, mit drei einzelnen, jeweils in einem gesonderten Kanal gelegenen Anschlußfahnen bestückbaren Isolierstoffgehäuses für einen Kontaktapparat,
  • Fig. 13 eine in vergrößertem Maßstab gezeichnete Einzelheit aus der Fig. 11,
  • Fig. 14 bis 16 Teilansichten und Schnitte von mit einer Einschubrückwand kombinierten Kontaktvorrichtungen und
  • Fig. 18 in einer Explosionsdarstellung den Aufbau eines Einschubes mit Kontaktvorrichtungen gemäß den Fig. 14 bis 17.
It shows:
  • 1 is a plan view of a terminal lug for a contact apparatus,
  • 2 shows a section through a partial area of a contact apparatus with a connecting lug arranged therein, in the position of the contact device mounted on a busbar,
  • 3 in four individual representations "a" to "d" the assembly phases for first one and finally a second connecting lug in the housing of the contact device indicated in FIG. 2,
  • 4 to 9 are sectional views and views of an insulative housing for a contact apparatus which can be equipped with two connecting lugs,
  • 10 to 12 are sectional views and the front view of a different type of insulating material housing for a contact apparatus, which can be fitted with three individual connecting lugs, each located in a separate channel.
  • 13 is a detail drawn on an enlarged scale from FIG. 11,
  • 14 to 16 are partial views and sections of contact devices combined with an insert rear wall
  • 18 shows an exploded view of the structure of a slide-in unit with contact devices according to FIGS. 14 to 17.

Die Figur 1 veranschaulicht also, wie oben erwähnt, eine bereits mit einem Kabelleiter 1 bestückte Anschlußfahne 2 für einen Kontaktapparat gemäß der vorliegenden Erfindung. Wie erkennbar, weist diese Anschlußfahne 2 an ihrem in der Darstellung nach rechts weisenden Ende ein Kontaktfingerpaar 3 und 4 auf und an ihrem entgegengesetzten Ende eine ursprünglich ebene und an den Randungen gezackte, nunmehr jedoch mit dem Kabelleiter 1 verkrallte Klemmfahne 5. Mittels eines Kabelförmigen Federbügels 6 werden die Kontaktfinger 3 und 4 aufeinanderzu gedrückt, wobei die freien Enden des Federbügels 6 an zum Betrachter hin ausgebogenen Stegen 7 und 8 angreifen. Ähnliche Anschlußfahnen sind bereits bekannt, allerdings weist diese Anschlußfahne 2 zusätzlich zwei charakteristische Merkmale auf, nämlich Vorsprünge 9 und 10 an ihren Schmalseiten, sowie eine Rechtecköffnung 11 mit einem deutlich ungleichen Seitenverhältnis, wobei der Längsverlauf dieser Rechtecköffnung 11 quer zur Längserstreckung bzw. auch zur Einführrichtung der Anschlußfahne 2 gelegen ist. Die eben erwähnten Vorsprünge 9 und 10 werden übrigens durch Ausklinkungen im Bereich der Kontaktfinger 3 und 4 geschaffen. Erwähnt sei schließlich noch, daß durch eine Aufschlitzung 12 und ein Langloch 13 in der Anschlußfahne 2 die Aufbiegbarkeit der Kontaktfinger 3 und 4 verbessert bzw. erleichtert ist.1 illustrates, as mentioned above, a connection lug 2 already equipped with a cable conductor 1 for a contact apparatus according to the present invention. As can be seen, this terminal lug 2 has a pair of contact fingers 3 and 4 at its end pointing to the right in the illustration, and at its opposite end an originally flat and jagged terminal lug 5, which is now clawed to the cable conductor 1, by means of a cable-shaped spring clip 6, the contact fingers 3 and 4 are pressed towards one another, the free ends of the spring clip 6 engaging on webs 7 and 8 which are bent out toward the viewer. Similar connecting lugs are already known, but this connecting lug 2 additionally has two characteristic features, namely projections 9 and 10 on their narrow sides, and a rectangular opening 11 with a clearly unequal aspect ratio, the longitudinal profile of this rectangular opening 11 being transverse to the longitudinal extension or also to the direction of insertion the terminal lug 2 is located. The projections 9 and 10 just mentioned are created by notching in the area of the contact fingers 3 and 4. Finally, it should be mentioned that the slit 12 and an elongated hole 13 in the connecting lug 2 Bendability of the contact fingers 3 and 4 is improved or facilitated.

In Figur 2 ist ein Teilbereich eines Isolierstoffgehäuses 14 aufgeschnitten dargestellt, und zwar bestückt mit der in Fig. 1 gesondert dargestellten Anschlußfahne 2. Außerdem sei angemerkt, daß diese Anschlußfahne 2 auf eine Stromsammelschiene 15, deren rechteckiger Querschnitt - schraffiert - erkennbar ist, aufgesteckt ist. Weiterhin ist dieser Darstellung zu entnehmen, daß die Vorsprünge 9 und 10 an der Anschlußfahne 2 an in das Gehäuseinnere des Isolierstoffgehäuses 14 ragende Gehäusevorsprünge 16 und 17 anstoßen, so daß ein weiteres Einführen der Anschlußfahne 2 in das Isolierstoffgehäuse 14 verhindert ist. Im übrigen grenzen die sich an die Vorsprünge 9 und 10 anschließenden Randungsbereiche der Anschlußfahne 2 an ebenfalls in das Innere des Isolierstoffgehäuses 14 gerichtete Rippen 18 und 19 an, welch letztere der Anschlußfahne 2 zunächst als Einführhilfe und sodann zur Lagefixierung dienen. Diese Rippen 18 und 19 gehen in einem in der Darstellung weiter links erkennbaren Bereich des Isolierstoffgehäuses 14 in ein Wandungsteil 20 über, welches das etwa rohrförmig gestaltete Innere des Isolierstoffgehäuses 14 in diesem Bereich gewissermaßen aufteilt. Von diesem Wandungsteil 20 gehen nun zwei im Querschnitt gabelartig verlaufende, zueinander federnd ausbiegbare Laschen aus, von denen in dieser Fig. 2 lediglich diejenige mit der Ziffer 21 erkennbar ist. Die Einzeldarstellungen in der Fig. 3 veranschaulichen Schnitte entsprechend dem angedeuteten Schnittverlauf 111-111 in Fig. 2 und lassen nun außer der bereits erwähnten Lasche 21 auch die ihr gegenüberliegende zweite Lasche 22 erkennen. Betrachtet man die Figur 3a, so findet man hier auch außer den beiden Laschen 21 und 22 das Wandungsteil 20 wieder sowie den Gehäusevorsprung 16 und die von diesem Gehäusevorsprung 16 ausgehende bzw. mit ihm zusammengeformte Rippe 18. Etwa spiegelbildlich gegenüberstehend, wenn auch in Längsrichtung etwas verschoben, ist ein weiterer Gehäusevorsprung 23 sowie eine der Rippe 18 entsprechende Rippe 24 erkennbar. Erwähnt sei noch, daß sowohl vom Gehäusevorsprung 16 als auch vom Gehäusevorsprung 23 weitere Rippen 25 und 26 ausgehen, welche letztendlich der gleichen Aufgabe dienen wie die vorher genannten Rippen 18, 19 und - darunterliegend - 24. Alle diese Rippen dienen - wie bereits erwähnt - der Führung der Anschlußfahne 2 sowie schließlich ihrer Lagefixierung.In Figure 2, a portion of an insulating housing 14 is shown cut open, and that is equipped with the connecting lug 2 shown separately in Fig. 1. It should also be noted that this connecting lug 2 is plugged onto a busbar 15, the rectangular cross-section of which - hatched - can be seen . Furthermore, it can be seen from this illustration that the projections 9 and 10 on the terminal lug 2 abut housing projections 16 and 17 projecting into the interior of the insulating material housing 14, so that further insertion of the terminal lug 2 into the insulating material housing 14 is prevented. In addition, the adjoining the projections 9 and 10 edge areas of the terminal lug 2 to ribs 18 and 19 also directed into the interior of the insulating housing 14, the latter of the terminal lug 2 initially serving as an insertion aid and then for fixing the position. These ribs 18 and 19 merge in a region of the insulating material housing 14 which can be seen further to the left in a wall part 20 which to a certain extent divides the approximately tubular interior of the insulating material housing 14 in this region. From this wall part 20, two tabs with a fork-like cross-section and resiliently bendable emanate, of which only the one with the number 21 can be seen in FIG. 2. The individual representations in FIG. 3 illustrate sections corresponding to the indicated section 111-111 in FIG. 2 and now, in addition to the already mentioned tab 21, also reveal the second tab 22 opposite it. Looking at FIG. 3a, in addition to the two tabs 21 and 22, one finds here the wall part 20 as well as the housing projection 16 and the rib 18 starting from this housing projection 16 or molded together with it. Approximately opposite, if somewhat in the longitudinal direction moved, a further housing projection 23 and a rib 24 corresponding to the rib 18 can be seen. It should also be mentioned that further ribs 25 and 26 extend from the housing projection 16 as well as from the housing projection 23, which ultimately serve the same purpose as the aforementioned ribs 18, 19 and - underneath - 24. All of these ribs serve - as already mentioned - the leadership of the terminal lug 2 and finally their position.

Sehr wesentlich ist die Ausbildung der bereits genannten Laschen 21 und 22, denn sie weisen im Bereich ihres frei federnden Endes jeweils eine Rastnocke 27 bzw. 28 auf und enden schließlich in einer geringfügigen Verjüngungen 29 und 30. Diese Rastnocke 27 an der Lasche 21 bewirkt beim Einführen der Anschlußfahne 2 in Richtung des Pfeiles 31 (in Fig. 3a links des Isolierstoffgehäuses 14 angedeutet) zunächst eine Ausbiegung der Lasche 21, wie dieses in der Figur 3b angedeutet ist. Ein weiteres Einführen der Anschlußfahne 2 führt schließlich zu ihrer Verrastung mit der Rastnocke 27, welche in die bereits eingangs erwähnte Rechtecköffnung 11 in der Anschlußfahne 2 einschnappt, was in der Figur 3c veranschaulicht ist. Diese Figur 3c zeigt zugleich auch die endgültig montierte Lage der Anschlußfahne 2, welche infolge ihres Anschlages an die Gehäusevorsprünge 16 und 17 (siehe Fig. 2) nicht weiter als dargestellt eingeführt werden kann, welche zugleich aber auch, infolge der Einrastung der Rastnocke 27 nicht mehr zurückgeführt werden kann. Eine Rückführung der Anschlußfahne 2 ist dennoch möglich, und zwar dadurch, daß mit einem einfachen Werkzeug, beispielsweise mit einem Messer oder einem Schraubendreher, hinter die Verjüngung 29 gegriffen, die Lasche 21 in die in Fig. 3b gezeigte Lage ausgebogen und die Anschlußfahne 2 zurükgeschoben wird. In diesem mit zwei Laschen 21 und 22 versehenen Isolierstoffgehäuse 14 sind nun aber zwei Anschlußfahnen anordbar, was in der Figur 3d angedeutet wird. Die hierin wiederum erkennbare Anschlußfahne 2 hat ihre Lage gemäß der Darstellung in Fig. 3c also bereits eingenommen und auch beibehalten, eine weitere Anschlußfahne 32 ist in ihrer noch nicht ganz eingeschobenen Lage erkennbar, wobei sich nun die zweite Lasche 22 mit ihrer Rastnocke 28 durchbiegt. Bei weiterem Einführen der Anschlußfahne 32 wird, wie auch bei der Anschlußfahne 2, die Rastnocke 28 in eine Rechtecköffnung 33 der Anschlußfahne 32 eingreifen und somit die bereits geschilderte Halte- und Sperrfunktion erfüllen. Erwähnenswert ist es, daß die Anschlußfahne 32 ein wenig tiefer in das Isolierstoffgehäuse 14 einführbar ist, und zwar aufgrund der etwas längsverschobenen Lage des Gehäusevorsprunges 23 und der Rastnocke 28.The formation of the already mentioned tabs 21 and 22 is very important, because they each have a latching cam 27 or 28 in the region of their freely resilient end and finally end in a slight taper 29 and 30. This latching cam 27 on the tab 21 causes Inserting the terminal lug 2 in the direction of arrow 31 (indicated in FIG. 3a on the left of the insulating material housing 14) firstly a bending of the tab 21, as is indicated in FIG. 3b. A further insertion of the terminal lug 2 finally leads to its latching with the latching cam 27, which snaps into the rectangular opening 11 already mentioned in the terminal lug 2, which is illustrated in FIG. 3c. This Figure 3c also shows the final assembled position of the terminal lug 2, which due to its stop on the housing projections 16 and 17 (see Fig. 2) can not be inserted further than shown, but which also, due to the latching of the locking cam 27, not can be traced back. A return of the terminal lug 2 is still possible, namely by gripping behind the taper 29 with a simple tool, for example with a knife or a screwdriver, the tab 21 is bent into the position shown in FIG. 3b and the terminal lug 2 is pushed back becomes. In this insulating housing 14, which is provided with two tabs 21 and 22, two connecting lugs can now be arranged, which is indicated in FIG. 3d. The connection lug 2, which can again be seen here, has thus already assumed and maintained its position as shown in FIG. 3c, a further connection lug 32 can be seen in its not yet fully inserted position, the second tab 22 now bending with its latching cam 28. Upon further insertion of the connecting lug 32, as with the connecting lug 2, the locking cam 28 will engage in a rectangular opening 33 of the connecting lug 32 and thus fulfill the holding and locking function already described. It is worth mentioning that the connecting lug 32 can be inserted a little deeper into the insulating housing 14, because of the somewhat longitudinally displaced position of the housing projection 23 and the locking cam 28.

Hierdurch wird das Aufstecken des Kontaktapparates auf eine Stromsammelschiene (15) erleichtert.This makes it easier to plug the contact apparatus onto a busbar (15).

Soviel zur Ausbildung der Anschlußfahnen sowie zu ihrer Einrastung und Lagefixerung in Isolierstoffgehäusen von Kontaktapparaten. Die folgenden Ausführungen beziehen sich nun auf die Gestaltungsmöglichkeiten von Isolierstoffgehäusen für Kontaktapparate der zur Rede stehenden Art.So much for the formation of the connecting lugs as well as for their engagement and fixing in position in the insulating material housings of contact devices. The following explanations now refer to the design options for insulating material housings for contact devices of the type in question.

Figur 4 veranschaulicht in einem Längsschnitt ein Isolierstoffgehäuse 34, welches demjenigen, wie es in den Figuren 2 und 3a bis 3d andeutungsweise gezeigt ist, etwa entsprechen könnte. Es weist eine im wesentlichen rohrförmige Gestalt auf, wobei der in der Darstellung nach links weisende Einführungsbereich für zwei Anschlußfahne wiederum von einem Wandungsteil 35 durchsetzt ist. Von diesem Wandungsteil 35 gehen Laschen 36 und 37 aus, welche im gezeigten Querschnitt gabelartig zueinander verlaufen. Jede dieser Laschen 36 und 37 ist mit einer Rastnocke 38 bzw. 39 versehen, deren Bedeutung und Funktion bereits eingehend im Zusammenhang mit den Einzeldarstellungen der Figuren 3 erläutert worden ist. Erwähnenswert ist vielleicht noch, daß die Lasche 37 länger als die andere Lasche 36 ausgebildet ist, und auch die Rastnocke 39 versetzt zu der gegenüberliegenden Rastnocke 38 gelegen ist. Hierdurch wird, wie eingangs und auch soeben bereits angedeutet, eine geringfügig zueinander verschobene Lage der aufzunehmenden Anschlußfahnen erzielt, was eine Erleichterung beim Aufstecken der Anschlußfahnen auf Stromsammelschienen zur Folge hat. Im übrigen sind auch hier ins Innere des Isolierstoffgehäuses 34 vorstehende Gehäusevorsprünge 40 und 41 ausgeformt, welche als Anschläge für die aufzunehmenden Anschlußfahnen dienen.FIG. 4 illustrates in a longitudinal section an insulating material housing 34, which could roughly correspond to the one as indicated in FIGS. 2 and 3a to 3d. It has an essentially tubular shape, the insertion area for two connecting lugs pointing to the left in the illustration being in turn penetrated by a wall part 35. Tabs 36 and 37 extend from this wall part 35 and run in a fork-like manner to one another in the cross section shown. Each of these tabs 36 and 37 is with a locking cam 38 and 39 provided, the meaning and function of which has already been explained in detail in connection with the individual representations of FIGS. It may also be worth mentioning that the tab 37 is longer than the other tab 36, and the locking cam 39 is also offset from the opposite locking cam 38. As a result, as already mentioned at the beginning and also just mentioned, a slightly shifted position of the connecting lugs to be accommodated is achieved, which makes it easier when the connecting lugs are plugged onto busbars. Incidentally, here also protruding housing projections 40 and 41 are formed in the interior of the insulating housing 34, which serve as stops for the terminal lugs to be received.

Eine Draufsicht auf das Isolierstoffgehäuse 34 veranschaulicht die Figur 5. Erwähnenswert sind hier äußerlich angeformte schrägstehende Vorsprünge 42 und 43 auf der einen Seite sowie weitere, allerdings entgegengerichtet schrägstehende Vorsprünge 44 und 45, welche der Aufnahme benachbart anzugliedernden gleicher Isolierstoffgehäuse dienen, und zwar funktioniert das nach dem an sich bekannten Schwalbenschwanz-Prinzip. Erkennbar in dieser Darstellung ist auch, daß das in der Darstellung nach recht weisende Ende des Isolierstoffgehäuses 34 Ausnehmungen 46 und 47 aufweist (siehe hierzu auch Fig. 4), welche dem Durchtritt von Stromsammelschienen dienen, oder anders gesagt: dann notwendig sind, wenn man - wie im vorliegenden Falle also geschehen - das Isolierstoffgehäuse 34 schützend um die mit den aufzunehmenden Stromsammelschienen zu kontaktierenden Enden der Anschlußfahnen umgeben möchte.FIG. 5 illustrates a top view of the insulating material housing 34. Worth mentioning here are externally formed inclined projections 42 and 43 on one side and further, but oppositely inclined projections 44 and 45, which serve to accommodate identical insulating housings to be attached adjacent, and this works afterwards the well-known dovetail principle. It can also be seen in this illustration that the end of the insulating material housing 34 which points towards the right in the illustration has recesses 46 and 47 (see also FIG. 4) which serve for the passage of current busbars, or in other words: are necessary when one - As happened in the present case - the insulating housing 34 would like to protect around the ends of the terminal lugs to be contacted with the busbars to be accommodated.

Die Figur 6 zeigt einen Schnitt VI-VI, dessen Verlauf in Fig. 4 angedeutet ist. Erkennbar hier im Inneren das Wandungsteil 35 mit der davon ausgehenden Lasche 36, ferner der Gehäusevorsprung 40 sowie ein weiterer Gehäusevorsprung 48, die Ausnehmung 47 sowie bisher nicht erwähnte Rippen 49 und 50 zur Führung und Lagefixierung einer aufzunehmenden Anschlußfahne. Im übrigen sind auch in dieser Schnittdarstellung die schrägstehenden Vorsprünge 42 bis 45, deren Bedeutung bereits erläutert wurde, erkennbar.FIG. 6 shows a section VI-VI, the course of which is indicated in FIG. 4. Recognizable here inside the wall part 35 with the tab 36 extending therefrom, further the housing projection 40 and a further housing projection 48, the recess 47 and ribs 49 and 50 not previously mentioned for guiding and fixing the position of a connecting lug. Otherwise, the oblique projections 42 to 45, the meaning of which has already been explained, can also be seen in this sectional illustration.

Einen Schnitt VII-VII, dessen Verlauf in der Fig. 5 angedeutet ist, veranschaulicht die Figur 7. Hierin ist das bereits erwähnte Wandungsteil 35 und dessen Verlauf besser erkennbar, im übrigen verdeutlicht diese Schnittdarstellung am Isolierstoffgehäuse 34 angeformte Mittel zur Gehäusebefestigung, und zwar sind diese Mittel in Form von mit Befestigungsschlitzen 51 und 52 versehenen Befestigungslappen 53 und 54 ausgebildet.A section VII-VII, the course of which is indicated in FIG. 5, is illustrated in FIG. 7. The wall part 35 and its course, which have already been mentioned, can be seen better here, and this sectional view on the insulating housing 34 furthermore illustrates molded-on means for housing fastening, namely these means are in the form of fastening tabs 53 and 54 provided with fastening slots 51 and 52.

Eine der eben genannten Schnittdarstellung entgegengerichtet vorgenommene Sicht auf das Isolierstoffgehäuse 34, entsprechend also einer Seitensicht auf die Darstellung in Fig. 5, veranschaulicht die Figur 8. Hier sind die Befestigungslappen 53 und 54 von ihrer anderen Seite her erkennbar, im übrigen noch einmal das Wandungsteil 35 sowie die zueinander ausbiegbaren Laschen 36 und 37.FIG. 8 illustrates a view of the insulating material housing 34 that is made in the opposite direction to the sectional view just mentioned, that is to say a side view of the illustration in FIG. 5. Here, the fastening tabs 53 and 54 can be seen from their other side, and the wall part again for the rest 35 and the mutually bendable tabs 36 and 37.

Eine entgegengesetzte Ansicht (Ansicht A gemäß Pfeil A in Fig. 6) zeigt die Figur 9, welche keiner weiteren Erläuterungen bedarf, ausgenommen den Hinweis auf die bezifferten Ausnehmungen 46 und 47.FIG. 9 shows an opposite view (view A according to arrow A in FIG. 6), which requires no further explanation, except for the reference to the numbered recesses 46 and 47.

Ein Isolierstoffgehäuse wie dieses eben geschilderte (34) vermag zwei Anschlußfahnen gemäß Fig. 1 aufzunehmen, und zwar, wie schon gesagt, nach Art und Weise wie dieses aus den Fig. 2 und 3a bis 3d zu entnehmen ist.An insulating material housing such as the one just described (34) can accommodate two connection lugs according to FIG. 1, and, as already said, in the manner in which this can be seen from FIGS. 2 and 3a to 3d.

Ein anders gestaltetes Isolierstoffgehäuse 55 ist in den Figuren 10 bis 12 gezeigt. Im Unterschied zum zuvor erläuterten Gehäuse weist dieses, wie aus der Schnittdarstellung in Fig. 11 am besten zu erkennen ist, zunächst einen kastenförmigen Bereich 56 auf, von welchem nun ein mehrkanaliger Stutzen 57 ausgeht. Dieser mehrkanalige Stutzen 57 enthält drei für sich seitlich abgeschlossene Kanäle 58 bis 60, was wiederum aus der Fig. 10 und der Schnittdarstellung in Fig. 11 erkennbar ist. Wesentlich hierbei ist es, daß jeder der Kanäle 58 bis 60 eine hochgezogene Wandung 61 aufweist, von welcher jeweils eine Lasche 62 (siehe Fig. 11) ausgeht. Dieser spezielle Bereich innerhalb eines jeden der Kanäle 58 bis 60 ist in vergrößertem Maßstab noch einmal in Figur 13 gezeigt. Erkennbar hier ist ein Teil der besagten hochgezogenen Wandung 61 sowie die Lasche 62, welche auch hier wiederum mit einer Rastnocke 63 ausgestattet ist. Es ist ersichtlich, daß auch diese Lasche 62 hinsichtlich ihrer Ausbildung und Lage denjenigen Laschen entspricht, wie sie in den zuvor erläuterten Ausführungsbeispielen gezeigt worden sind, und sie hat auch die gleiche Aufgabe: nämlich eine in diesen Darstellungen nicht angedeutete Anschlußfahne verrastend aufzunehmen und in ihrer Lage zu fixieren. Hierbei wirken auch wiederum Rippen 64 sowie Gehäusevorsprünge 65 mit. Einführung und Lagefixierung von Anschlußfahnen, die denen gemäß Fig. 1 praktisch entsprechen können, bedürfen keiner weiteren Erläuterung. Gesagt sei lediglich, daß anstatt einer paarweisen Anordnung von Anschlußfahnen hier in diesem Isolierstoffgehäuse 55 in jedem der genannten Kanäle 58 bis 60 jeweils nur eine Anschlußfahne anordbar ist. Im übrigen ist auch dieses Isolierstoffgehäuse 55 mit Befestigungsmitteln 66 und 67 in Form von angespritzten Ohren und darin enthaltenen Gewindebuchsen versehen. Sehr wohl ist aber auch die paarweise Anordnung von Anschlußfahnen bei entsprechender Ausbildung der Wandungsteile und paarweise vorgesehenen Laschen 62 realisierbar.A differently designed insulating material housing 55 is shown in FIGS. 10 to 12. In contrast to the previously explained housing, as can best be seen from the sectional view in FIG. 11, this first has a box-shaped area 56, from which a multi-channel connecting piece 57 now emanates. This multi-channel connecting piece 57 contains three channels 58 to 60 which are closed off on the side, which in turn can be seen from FIG. 10 and the sectional view in FIG. 11. It is essential here that each of the channels 58 to 60 has a raised wall 61, from each of which a tab 62 (see FIG. 11) extends. This particular area within each of the channels 58 through 60 is shown again on an enlarged scale in FIG. A part of said raised wall 61 and the tab 62, which in turn is also equipped here with a latching cam 63, can be seen here. It can be seen that this tab 62 also corresponds in terms of its design and position to those tabs as have been shown in the exemplary embodiments explained above, and it also has the same task: namely to latch a connecting lug not indicated in these representations and to hold it in place Fix location. Here again ribs 64 and housing projections 65 also cooperate. Introduction and fixation of terminal lugs, which can practically correspond to those shown in FIG. 1, require no further explanation. All that is said is that instead of a paired arrangement of terminal lugs, only one terminal lug can be arranged in this insulating material housing 55 in each of the channels 58 to 60 mentioned. Incidentally, this insulating material housing 55 is also provided with fastening means 66 and 67 in the form of molded ears and threaded bushings contained therein. However, the paired arrangement of connecting lugs can also be realized with appropriate design of the wall parts and paired tabs 62.

Eine eigenwillige Abwandlung hinsichtlich der Ausbildung von Isolierstoffgehäusen von Kontaktapparaten der zur Rede stehenden Art veranschaulichen die Figuren 14, 15, 16 und 17. Die Figur 14 zeigt eine - mittig ausgebrochene - Rückwandung eines Einschubes für einen Schaltschrank oder dergleichen, wobei Isolierstoffgehäuse für Kontaktapparaturen gleich mitangeformt sind.FIGS. 14, 15, 16 and 17 illustrate an idiosyncratic modification with regard to the design of insulating material housings of contact apparatuses of the type in question. FIG. 14 shows a rear wall, broken out in the middle, of a slide-in unit for a control cabinet or the like, insulating housing for contact apparatuses being molded on at the same time.

Die Isolierstoffgehäuse für die einzelnen Kontaktapparate sind also letzten Endes Materialbestandteil der - übrigens mit der Ziffer 68 bezeichneten - Einschub-Rückwand. Es ist erkennbar, daß sowohl auf der in der Darstallung in Fig. 14 nach rechts weisenden Seite drei kanalartig ausgebildete Gehäusebereiche 69, 70 und 71 angeformt sind, als auch an der in der Darstellung nach unten weisenden Seite weitere kanalartig ausgebildete Gehäusebereiche 72, 73 und 74. Die Schnittdarstellungen in den Fig. 15 und 16, deren Schnittverlauf aus der Fig. 14 zu entnehmen ist, verdeutlichen die Ausbildung der kanalartigen Gehäusebereiche 69, 70 und 71, die Schnittdarstellung in Fig. 17 hingegen zeigt einen Schnitt durch den kanalartig ausgebildeten Gehäusebereich 72 an der Unterseite der Einschub-Rückwand 68. Die letztgenannte Fig. 17 ist in gegenüber den Darstellungen gemäß Fig. 14 bis 16 vergrößertem Maßstab gezeigt, um die Ausbildung besser erkennbar zu machen. Sichtbar hierin ist ein Wandungsteil 75 mit davon ausgehenden, zueinander ausfederbaren Laschen 76 und 77, welche in nun schon bekannter Weise jeweils mit einer Rastnocke 78 bzw. 79 versehen sind. Gleiche Laschenpaare sind, wie beispieisweise in der Fig. 15 erkennbar, auch in den übrigen kanalartig ausgebildeten Gehäusebereichen 69 bis 71 und 73 sowie 74 vorhanden. Sinn und Zweck dieser Laschen entsprechen denen in den zuvor erläuterten Ausführungsbeispielen, sie dienen auch hier der rastenden Aufnahme und Lagefixierung von (nicht gezeigten) Anschlußfahnen der geschilderten Art.The insulating material housings for the individual contact devices are therefore ultimately a material component of the slide-in rear wall, designated by the way with the number 68. It can be seen that three channel-like housing areas 69, 70 and 71 are integrally formed on the side pointing to the right in FIG. 14, and also further channel-like housing areas 72, 73 and 74. The sectional views in FIGS. 15 and 16, the section of which can be seen from FIG. 14, illustrate the design of the channel-like housing areas 69, 70 and 71, the sectional view in FIG. 17, however, shows a section through the channel-like housing area 72 on the underside of the insert rear wall 68. The last-mentioned FIG. 17 is shown on an enlarged scale compared to the representations according to FIGS. 14 to 16, in order to make the design more recognizable. Visible here is a wall part 75 with tongues 76 and 77 extending therefrom, which can be sprung out from one another and which are each provided with a locking cam 78 and 79 in a manner which is now known. The same pairs of tabs, as can be seen, for example, in FIG. 15, are also present in the other housing regions 69 to 71 and 73 and 74, which are designed like channels. The sense and purpose of these tabs correspond to those in the previously explained exemplary embodiments, they also serve here for the latching reception and positional fixing of connecting tabs (not shown) of the type described.

Dem besseren Verständnis der Funktion einer derart ausgebildeten und mit angeformten Gehäusebereichen für Kontaktapparate versehenen Einschub-Rückwand 68 dient die Figur 18. Hierin ist, in einer Explosionsdarstellung, ein hoher Geräteeinschub mit (was die wesentlichen Teile betrifft) einer Frontwandung 80, seitlichen Wandungen 81 und 82, weiteren Verbindungs- und Tragteilen (nicht beziffert) und schließlich mit zwei Einschub-Rückwänden 83 und 84 gezeigt. Diese Einschub-Rückwände 83 und 84 entsprechen derjenigen (68), die in den Figuren 14 bis einschließlich 17 gezeigt ist. Erkennbar sind hier die den Kontaktapparaten dienenden Gehäusebereiche 85 und 86, welche, um es noch einmal zu sagen, Bestandteil der aus Isolierstoff bestehenden Einschub-Rückwände 83 und 84 sind. Anstatt solcher Einschub-Rückwände sind, um einen solchen Anwendungsfall für Kontaktapparate einmal zu erwähnen, auch andere Teile ohne entsprechend angeformte Gehäusebereiche für Kontaktapparate zu verwenden, wobei dann einzelne Kontaktapparte, beispielsweise solche gemäß den Figuren 4 bis 9 oder andere gemäß den Figuren 10 bis 12, diesen Einschub-Rückwänden angegliedert werden können. Letzteres ist natürlich aufwendiger, da es zusätzlicher Befestigungsmaßnahmen bedarf, ein solches Vorgehen ist aber dann notwendig und auch wirtschaftlich, wenn nicht von vornherein Anzahl und Positionierung von Kontaktapparaten absehbar bzw. erkennbar sind.Figure 18 is used for a better understanding of the function of a slide-in rear wall 68 designed in this way and provided with molded housing areas for contact apparatus. Here, in an exploded view, there is a high slide-in device with (as far as the essential parts are concerned) a front wall 80, side walls 81 and 82, further connecting and supporting parts (not numbered) and finally shown with two insertion rear walls 83 and 84. These slide-in rear walls 83 and 84 correspond to that (68) shown in FIGS. 14 to 17 inclusive. The housing areas 85 and 86 serving the contact apparatus can be seen here, which, to say it again, are part of the insert rear walls 83 and 84 made of insulating material. Instead of such slide-in rear walls, in order to mention such an application for contact devices, other parts without correspondingly shaped housing areas for contact devices should also be used, individual contact devices, for example those according to FIGS. 4 to 9 or others according to FIGS. 10 to 12 , can be attached to these slide-in rear panels. The latter is of course more complex since additional fastening measures are required, but such a procedure is necessary and also economical if the number and positioning of contact devices cannot be foreseen or recognized from the outset.

Claims (10)

1. Contact apparatus for the contacting of electrical cable conductors (1) with busbars (15), consisting substantially of a housing of insulating material (14), open at both ends, and of at least one connection lug (2) of large surface area, with at its one end a pair of contact fingers (3, 4) pressed resiliently together and with at its other end a clamping lug (5) for the contacting retention of the cable conductor (1), characterized in that a deflecting tab (21, 22) is attached transversely to the direction of introduction of the connection lug in a wall (20) of the housing of insulating material (14) running approximately parallel to the broad sides of the connection lug (2), which tab is provided in its freely yielding end region with at least one catch (27, 28), which for its part engages behind an edge of a recess (11) in the connection lug - preventing its return - and in that the connection lug has on at least one of its narrow sides a projection (9,10) which, in the inserted and engaged position of the connection lug in the housing of insulating material (14) comes up against a housing projection (16, 17) protruding into the housing interior and thus prevents an introductory movement of the connection lug going beyond the engagement position.
2. Contact apparatus according to Claim 1, characterized in that the freely yielding end of the deflecting tab (21, 22) is slightly tapered with respect to its remaining thickness and the catch (27, 28) lies ahead of this taper.
3. Contact apparatus according to one of Claims 1 and 2, characterized in that the recess (11) in the connection lug (2) for receiving the catch emerging from the resilient tab is arranged in the region between the pair of contact fingers (3,4) and the clamping lug (5) and is designed as a rectangular opening (11) surrounded on all sides and with a clearly unequal side ratio, the longitudinal extent lying transverse to the direction of introduction of the connection lug.
4. Contact apparatus according to one of Claims 1 to 3, characterized in that its housing of insulating material (34) has, with regard to its main inner contours, an approximately tubular shape with a longitudinally running wall portion (35), which divides the tube cross-section, the region of the introduction opening for the connection lug (2), from which emerge two tabs (36, 37), which are fork-like in cross-section, can be bent out resiliently with respect to each other and have catches (38, 39) arranged at their free ends, each of the tabs (36, 37) serving to retain one of two connection lugs (2) lying laterally- reversed opposite each other by their broad sides (Figs. 4 to 9).
5. Contact apparatus according to one of Claims 1 to 4, characterized in that ribs (49, 50) emerge from the housing of insulating material (34) into the housing interior and/or grooves are impressed in the walls of the housing of insulating material, which ribs and/or grooves adjoin the lateral borders of the connection lugs (2) to be received and serve this initially as an aid for introduction and then for their positional fixing, and in that at the ends most remote - seen in the direction of introduction of the connection lugs to be received - of the ribs (49, 50) or of the grooves are arranged the housing projections (40, 41,48), against which come the projections (9,10) of the connection lugs (2), preventing their further introduction (Figs. 4 and 6).
6. Contact apparatus according to one of Claims 1 to 3, characterized in that its housing of insulating material has a box-like shape, from which emerges a single-channel or multi-channel branch (57) for receiving one or more connection lugs (2) lying individually next to one another by their narrow sides or for receiving one or more connection lugs (2) which can be arranged next to one another in pairs in each case, and in that within the channel or within each channel of the single-channel or multi-channel branch (57) is arranged in each case a deflecting tab (62) attached at a channel wall or a cross wall and with at least one catch (63) at its freely yielding end, one connection lug (2) being insertable within each channel and lockable by means of the catch (63) (Figs. 10 to 12).
7. Contact apparatus according to Claim 4, characterized in that the free ends of the tabs which can be bent out resiliently with respect to each other and their catches are mutually offset in the direction of introduction of the connection lugs at least slightly, of the order of magnitude of about 3 to 6 mm.
8. Contact apparatus according to one of Claims 1 to 7, characterized in that attached to the housing of insulating material (34; 55) are means in the form of tabs (53, 54; 66, 67) provided with fastening openings or fastening slots, or else indentations, or means in the form of catches or the like, which serve the mounting and fastening of the housing of insulating material to supporting walls, frameworks or slide-in modules.
9. Contact apparatus according to one of Claims 1 to 8, characterized in that the housing of insulating material (34; 55) is provided at its end surrounding the pairs of contact fingers (3, 4) of the connection lugs (2) on opposite walls with slot-like recesses (46,47) which lie in the same direction as the slots formed between the pairs of contact fingers (3, 4) but are designed slightly wider than the slots and allow a continuously straight line to be followed by busbars (15) to be contacted to the connection lugs (2).
10. Contact apparatus according to one of Claims 1 to 9, characterized in that its housing of insulating material for receiving one or more connection lugs (2) is an attached part of a section of insulating material (68) of larger size than is necessary for the reception of connection lugs (2) which serves other functions, namely in particular as a slide-in wall, as a rack wall for slide-in cabinets, as equipment housing or the like.
EP84103989A 1983-04-12 1984-04-10 Contact device for the connection of electrical cable conductors to bus bars Expired EP0125489B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103989T ATE27385T1 (en) 1983-04-12 1984-04-10 CONTACT DEVICE FOR CONTACTING ELECTRICAL CABLE CONDUCTORS WITH CURRENT BUSBARS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3313193 1983-04-12
DE19833313193 DE3313193A1 (en) 1983-04-12 1983-04-12 CONTACT APPARATUS FOR CONTACTING ELECTRICAL CABLE LADDERS WITH BUSBARS

Publications (3)

Publication Number Publication Date
EP0125489A2 EP0125489A2 (en) 1984-11-21
EP0125489A3 EP0125489A3 (en) 1985-07-10
EP0125489B1 true EP0125489B1 (en) 1987-05-20

Family

ID=6196149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103989A Expired EP0125489B1 (en) 1983-04-12 1984-04-10 Contact device for the connection of electrical cable conductors to bus bars

Country Status (5)

Country Link
EP (1) EP0125489B1 (en)
AT (1) ATE27385T1 (en)
DE (2) DE3313193A1 (en)
DK (1) DK131984A (en)
NO (1) NO159047C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729454A1 (en) * 1987-09-03 1989-03-16 Ritter Starkstrom Gmbh & Co Contact element for the power connection of a switching cabinet push-in unit of a low-voltage switching installation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584540B1 (en) * 1985-07-04 1987-09-25 Labinal IMPROVEMENTS IN MOUNTING ELECTRICAL CONNECTION DEVICES
US4714437A (en) * 1987-01-20 1987-12-22 Ford Motor Company Electrical connector
AU606163B2 (en) * 1987-06-05 1991-01-31 Krone Gmbh Electrical connector
DE3731625A1 (en) * 1987-09-19 1989-03-30 Asea Brown Boveri Contact piece formed from flat material

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Publication number Priority date Publication date Assignee Title
US3149899A (en) * 1962-04-16 1964-09-22 United Carr Inc Electrical contact element
FR92979E (en) * 1966-05-27 1969-01-24 Proner Sa Ets Insulating protector for electrical connection clips.
DE2105842C3 (en) * 1971-01-25 1975-07-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Plug connection for high voltage systems
US3686617A (en) * 1971-03-30 1972-08-22 Ibm Multi-contact electrical connector assembly
US4025747A (en) * 1975-09-11 1977-05-24 Westinghouse Electric Corporation Circuit interrupter stab assembly with self-aligning clip type contact
JPS52134681U (en) * 1976-04-05 1977-10-13
JPS59145B2 (en) * 1978-06-02 1984-01-05 日産自動車株式会社 Electrical structure of automotive electrical equipment
DE2854678C2 (en) * 1978-12-18 1984-10-25 Brown, Boveri & Cie Ag, 6800 Mannheim Plug-in device for contacting electrical cable conductors with busbars

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729454A1 (en) * 1987-09-03 1989-03-16 Ritter Starkstrom Gmbh & Co Contact element for the power connection of a switching cabinet push-in unit of a low-voltage switching installation

Also Published As

Publication number Publication date
DE3313193A1 (en) 1984-10-18
EP0125489A3 (en) 1985-07-10
NO159047B (en) 1988-08-15
DK131984D0 (en) 1984-02-29
DK131984A (en) 1984-10-13
EP0125489A2 (en) 1984-11-21
DE3463874D1 (en) 1987-06-25
NO841444L (en) 1984-10-15
ATE27385T1 (en) 1987-06-15
NO159047C (en) 1988-11-23

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