EP0196942A1 - Process and device for the connection of metallic protective sheaths of telecommunication cables - Google Patents

Process and device for the connection of metallic protective sheaths of telecommunication cables Download PDF

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Publication number
EP0196942A1
EP0196942A1 EP86400442A EP86400442A EP0196942A1 EP 0196942 A1 EP0196942 A1 EP 0196942A1 EP 86400442 A EP86400442 A EP 86400442A EP 86400442 A EP86400442 A EP 86400442A EP 0196942 A1 EP0196942 A1 EP 0196942A1
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EP
European Patent Office
Prior art keywords
sheath
jaw
connection
metal
jaws
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.)
Withdrawn
Application number
EP86400442A
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German (de)
French (fr)
Inventor
Paul Nuss
Jean Lérot
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Goro SA
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Goro SA
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Publication date
Application filed by Goro SA filed Critical Goro SA
Publication of EP0196942A1 publication Critical patent/EP0196942A1/en
Withdrawn legal-status Critical Current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
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/22—End pieces terminating in a spring clip
    • H01R11/24—End pieces terminating in a spring clip with gripping jaws, e.g. crocodile clip
    • 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

Definitions

  • the present invention relates to the connections made on the metal sheaths for protecting telecommunications cables, either to ensure a conductive connection between two of these sheaths, or to connect one of these to earth.
  • the sheaths of this kind are arranged around the quarters of telecommunications cables in order to ensure the flow of high intensity currents, such as lightning currents towards the earth.
  • These sheaths are formed by a thin tubular aluminum envelope; or other suitable metal, on the external face of which a plastic coating is attached.
  • an external plastic sheath is arranged around the assembly, this sheath being relatively thick.
  • connection clamps one of the jaws of which carries, on its internal face, several points intended to pass through the cable to connect, the other jaw having openings capable of receiving the spikes thus provided, after crossing the corresponding cable. The rest, the ends. of these points are intended to be fixed in the holes made in the corresponding jaw of these connection clamps.
  • Such clamps can effectively give satisfaction in the case of flat cables comprising one or more conductors embedded in an insulating material.
  • the presence of the thick outer sheath of plastic and the existence of the insulating coating, provided on the outer face of the metal sheath raise particular problems.
  • the object of the present invention is therefore to resolve these and to ensure as large a contact surface as possible with the connection members, without there being any need to carry out the various preparatory operations necessary in the case of the technique. usually used so far.
  • the invention firstly relates to a method of connecting metal sheaths of the type considered by pinching between two metal blades, forming clamping and connection jaws.
  • this process is characterized in that:
  • the end of such a metal sheath is clamped together and the corresponding end of the thick external plastic sheath, provided around the latter, between the two clamping jaws used, by stamping at the same time, in the metal sheath, a series of protrusions by stretching there the material of this sheath, so as to increase its contact surface with the respective jaw, and this by driving in a plurality of studs provided in projection on the clamping jaw on the inside;
  • connection device for the implementation of the method defined above.
  • This device comprises two metal blades, forming jaws intended to grip the end of such a sheath and one of which has a series of holes intended to receive projecting elements carried by the other.
  • this device is characterized in that the elements thus provided consist of studs comprising, at the end, a flat or slightly curved face, and the holes made in the first jaw have a sharp edge on the side facing the second, the studs of this second jaw being adapted to punch the external plastic sheath of a telecommunications cable by detaching therefrom a series of elements in the form of pellets, while stamping protuberances in the metal sheath, and by stretching the material these protrusions, while the sharp edge of the entry of the holes of the second jaw ensures the elimination of the plastic coating provided on the outer face of the metal sheath and the exposure thereof.
  • the present device assumes the form of a clamp and this is provided with means capable of ensuring the locking of the two corresponding jaws, in their clamping position.
  • Figures 1 and 2 illustrate the application of the connection method according to the invention to achieve a conductive connection between the protective sheaths 1 of metal of two telecommunications cables 2 each having an outer sheath 3 relatively thick in plastic material, for example polyethylene. Consequently, it uses two connection devices 4 connected by a conductive braid 5.
  • Each of these devices consists of two metal plates 6 and 7 connected by a flexible area 8 of articulation, so that these can play the role of clamping jaws and connection.
  • One of these jaws carries, on its internal face, a series of projecting studs 9 whose height h is greater than the thickness g of the outer sheath 3 of the cables 2.
  • the end face of these studs is flat or slightly curved , as is the case in the example shown in Figure 3.
  • the second jaw 7 of each connection device has a series of holes 1 0 opposite the different studs 9.
  • these holes are intended to receive the end of these various studs.
  • these holes have a sharp edge at their entry end, that is to say at the place of their end situated on the internal face of the corresponding jaw 7.
  • These holes have a section of the same contour as the studs 9, for example a circular contour. In addition, their section is only very slightly greater than that of the studs 9, at least in their part adjoining their entry end.
  • each of these holes may include a flared portion 11 following a cylindrical portion 12 whose depth p corresponds to the driving distance of the pads 9 corresponding.
  • the studs 9 sink into the internal sheath 1 of metal, then into the external sheath 3 of plastic.
  • the corresponding parts of this latter sheath are then cut by the sharp edge of the entry end of the holes 10 of the external jaw 7, inside which the end of the studs 9 engages.
  • the latter somehow play the role of punches in the outer sheath 3 by detaching therefrom a series of elements 14 in the form of a pellet, the release of which is facilitated by the flaring 11 provided in each hole 10 (see FIG. 3) .
  • the depression of the studs 9 in the metal sheath 1 has the effect of stamping therein a series of protuberances 15.
  • the formation of these protuberances is accompanied by stretching of the sheet of metal, for example aluminum, which constitutes the sheath 1 and this, as shown in FIG. 3. This results in a significant increase in the contact surface of the internal face of this sheath with the lower jaw 6, and with the surface of the studs 9 thereof.
  • the jaws of these devices can be held in the clamping position by the simple elasticity of the flexible articulation zones 8 ensuring the connection of the two jaws of these devices as well as by the wedging of the studs 9 inside the holes 10.
  • he can advantageously be provided additional clamping means for locking the two jaws of each connection device, in their clamping position.
  • FIGS. 4 and 5 represent an embodiment of the connection device according to the invention in which the two jaws 6a and 7a are articulated freely by means of an axis 16 and there is provided a clamping screw 17 allowing to lock them in the clamping position, as shown on the right-hand side of FIG. 4.
  • the structure and arrangement of the two jaws of each of the two connection devices 4a thus provided remain the same as before.
  • the jaws 6a of these devices have a series of studs 9, while the jaws 7a have a series of corresponding holes.
  • FIG. 6 represents another embodiment in which the two jaws 7b and 6b of the corresponding device are articulated via an elastic zone 8b, as in the example of FIGS. 1 to 3.
  • the 'one of these jaws in this case the jaw 6b, carries one or more hooking members 1 8 capable of ensuring its attachment to the other jaw and this, in the clamping position thereof.
  • these attachment members can be designed to engage in additional holes 19 provided in the jaw 7b.
  • FIG. 7 shows another embodiment more specifically designed to provide a conductive connection between the metal protective sheaths 1c of two telecommunications cables 2c.
  • the corresponding device consists of two rigid metal blades 6c and 7c, the ends of which are joined by clamping screws and nuts 20, so that they can be tightened on either side of the ends of the two assemblies formed by an internal sheath in metal 1c and the corresponding external sheath 3c made of plastic.
  • the first blade 6c comprises, on the internal face of each of its ends, a series of studs 9 similar to those provided in the embodiment according to Figures 1 to 3.
  • As for the second blade 7c it has a series of holes correspondents.
  • these two blades are able to play the same role as the jaws 6 and 7 of the devices shown in FIGS. 1 to 3.
  • FIG. 8 represents an embodiment specially designed to ensure the earthing of the protective sheath 1d of a telecommunication cable 2d.
  • the corresponding device takes the form of a clamp, the two jaws 6d and 7d of which can be clamped on either side of the assembly formed by the end of the metal sheath 1d and the corresponding end of the external sheath Plastic 3d - Their tightening can then be ensured by a screw and a nut 20, as in the previous embodiment.
  • the clamp thus provided is attached to the end of a conductor 21 intended to provide an earth connection.
  • FIG. 9 represents yet another embodiment, intended to provide a conductive connection between the metal sheaths 1e of two second telecommunication cables.
  • the corresponding device comprises two clips similar to those shown in Figures 1 to 3, which are connected by a conductive braid 5e.
  • Each of these clamps comprises two jaws 6 and 7, one of which carries a series of studs 9, while the other has corresponding holes.
  • This device differs from that of FIGS. 1 to 3 by the fact that it further comprises an outer sealing rod.
  • This consists of a section of tube 22 split over its entire length and which is intended to receive the corresponding ends of the two cables 2e, as shown in FIG. 9. This sleeve can then be closed and fixed on these cables, by example using cable ties.
  • this sleeve is provided with a metallized coating intended to avoid the formation of thermoelectric couples.
  • the 5th connection braid is fixed against this covering by a metal rivet 23 or any other suitable member. This has not only the role of ensuring the desired conductive connection, but also of ensuring the assembly of the sleeve 22 with the two clamps of this connection device.
  • FIGS. 10 to 12 illustrate yet another embodiment of the connection device according to the invention, which is designed to avoid the risks of creep of the external sheaths 3 of two telecommunication cables 2f.
  • the two jaws 6f and 7f over their entire length, a cross section of curved shape and these two jaws are adapted to be fitted one inside the other, the convex part of the jaw 6f being engaged inside. of the concave part of the jaw 7f. Thanks to the shape thus provided for these two jaws, one obtains, at the time of their tightening, a constraint of these two parts and parts of the two sheaths which are pinched between them, that is to say the inner sheath 1f in metal and the outer sheath 3f in plastic. To further increase this pinching, the external jaw 7f may have a more pronounced curvature than the internal jaw 6f.
  • the jaw 6f which is intended to be placed on the inner side, carries protrusions 9f similar to those provided in the other embodiments. As for the jaw 7f, it has, in concordance, holes 10f.
  • the means for securing these two jaws after tightening consist of two folding tabs 24 provided at one and the other ends of the jaw 6f. These tabs are intended to be folded over the corresponding ends of the jaw 7f after tightening (see left part of FIG. 12).
  • the jaw 7f carries, at one of these ends, a tongue 25 capable of receiving a connection clamp 26 provided at one and the other ends of a conductive braid 27 intended to make the desired electrical connection between the metallic sheaths 1f of two telecommunication cables 2f.
  • the device according to the invention can be the subject of numerous other embodiments.
  • the means for clamping the two jaws could be different from those provided in the examples described above.
  • these devices could include protruding studs of any other section, the shape of the corresponding holes being modified accordingly.

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Abstract

According to this process, the end of such a sheath (1) and that of the thick external sheath (3) made of a plastic material, provided around the latter, are pinched together between two metallic strips (6 and 7) while at the same time embossing the metallic sheath (1) with a series of protuberances (15) so as to increase its surface area in contact with the respective jaw, which is done by forcing in a plurality of studs (9) which project out from the inner side. By means of these same projecting studs (9), and by providing a sharp edge to the other clamping jaw (7), the corresponding portions of the external sheath (3) made of a plastic material are detached and the plastic covering existing on the external face of the metallic sheath (1) is removed; this is done at the position of each projecting protuberance (15) embossed in the latter. The process and the corresponding connection device may be used for ensuring a conductive link between the metallic sheaths of two telecommunication cables or for connecting such a sheath to ground. <IMAGE>

Description

La présente invention concerne les connexions réalisées sur les gaines métalliques de protection des câbles de télécommunications, soit pour assurer une liaison conductrice entre deux de ces gaines, soit pour raccorder l'une de celles-ci à la terre.The present invention relates to the connections made on the metal sheaths for protecting telecommunications cables, either to ensure a conductive connection between two of these sheaths, or to connect one of these to earth.

Les gaines de ce genre sont disposées autour des quartes des câbles de télécommunications afin d'assurer l'écoulement de courants de forte intensité, tels que des courants de foudre vers la terre. Ces gaines sont constituées par une enveloppe tubulaire mince en aluminium; ou autre métal approprié, sur la face externe de laquelle est rapporté un revêtement plastique. De plus, une gaine externe en matière plastique est disposée autour de l'ensemble, cette gaine étant relativement épaisse.The sheaths of this kind are arranged around the quarters of telecommunications cables in order to ensure the flow of high intensity currents, such as lightning currents towards the earth. These sheaths are formed by a thin tubular aluminum envelope; or other suitable metal, on the external face of which a plastic coating is attached. In addition, an external plastic sheath is arranged around the assembly, this sheath being relatively thick.

Actuellement la technique utilisée en général pour réaliser une connexion sur une telle gaine de protection en métal, consiste à extraire l'extrémité de cette gaine après avoir ouvert la gaine externe en matière plastique sur une certaine longueur, puis à mettre à plat l'extrémité de la gaine en métal et à la dévêtir de son revêtement externe en plastique. La connexion proprement dite est ensuite effectuée en serrant l'extrémité de la gaine en métal entre deux plaquettes métalliques dotées de picots destinés à pénétrer dans le ruban d'aluminium formé par l'extrémité correspondante de la gaine. Toutefois, le pincement de telles plaquettes ne permet pas d'obtenir une surface de contact franche et durable dans le temps. Par ailleurs, le travail préalable de préparation de la gaine en métal et de la gaine externe en matière plastique est délicat II en est de même pour l'opération d'élimination du revêtement en plastique mince existant sur la face externe de la gaine en métal.Currently the technique generally used to make a connection on such a metal protective sheath, consists of extracting the end of this sheath after having opened the external plastic sheath over a certain length, then flattening the end of the metal sheath and to strip it of its external plastic coating. The actual connection is then carried out by clamping the end of the metal sheath between two metal plates provided with pins intended to penetrate into the aluminum strip formed by the corresponding end of the sheath. However, pinching such pads does not allow a frank and lasting contact surface to be obtained over time. In addition, the preliminary work of preparing the metal sheath and the external plastic sheath is delicate. The same is true for the operation of removing the thin plastic coating existing on the external face of the metal sheath. .

Dans un domaine différent, en l'occurence celui relatif à la connexion de câbles flexibles plats, il est connu d'utiliser des pinces de connexion dont l'une des mâchoires porte, sur sa face interne, plusieurs pointes destinées à traverser le câble à connecter, l'autre mâchoire présentant des ouvertures susceptibles de recevoir les pointes ainsi prévues, après traversée du câble correspondant Du reste, les extrémités. de ces pointes sont destinées à être fixées dans les trous ménagés dans la mâchoire correspondante de ces pinces de connexion.In a different field, in this case that relating to the connection of flat flexible cables, it is known to use connection clamps, one of the jaws of which carries, on its internal face, several points intended to pass through the cable to connect, the other jaw having openings capable of receiving the spikes thus provided, after crossing the corresponding cable. The rest, the ends. of these points are intended to be fixed in the holes made in the corresponding jaw of these connection clamps.

De telles pinces peuvent effectivement donner satisfaction dans le cas de câbles plats comportant un ou plusieurs conducteurs noyés dans une matière isolante. Mais, il n'en est pas de même dans le cas considéré, c'est-à-dire celui de la connexion des gaines en métal prévues sur les câbles de télécommunication. En effet, dans un tel cas la présence de la gaine externe épaisse en matière plastique et l'existence du revêtement isolant, prévu sur la face externe de la gaine en métal, soulèvent des problèmes particuliers.Such clamps can effectively give satisfaction in the case of flat cables comprising one or more conductors embedded in an insulating material. However, it is not the same in the case under consideration, that is to say that of the connection of the metal sheaths provided on the telecommunication cables. Indeed, in such a case the presence of the thick outer sheath of plastic and the existence of the insulating coating, provided on the outer face of the metal sheath, raise particular problems.

La présente invention a donc pour but de résoudre ceux-ci et d'assurer une surface de contact aussi grande que possible avec les organes de connexion, sans qu'il y ait lieu de procéder aux diverses opérations préparatoires nécessaires dans le cas de la technique habituellement utilisée jusqu'ici.The object of the present invention is therefore to resolve these and to ensure as large a contact surface as possible with the connection members, without there being any need to carry out the various preparatory operations necessary in the case of the technique. usually used so far.

A cet effet, l'invention a tout d'abord pour object un procédé de connexion des gaines en métal du type considéré par pincement entre deux lames métalliques, formant mâchoires de serrage et de connexion. Cependant, ce procédé est caractérisé en ce que :To this end, the invention firstly relates to a method of connecting metal sheaths of the type considered by pinching between two metal blades, forming clamping and connection jaws. However, this process is characterized in that:

-d'une part, on pince ensemble l'extrémité d'une telle gaine en métal et l'extrémité correspondante de la gaine externe épaisse en matière plastique, prévue autour de celle-ci, entre les deux mâchoires de serrage utilisées, en emboutissant en même temps, dans la gaine en métal, une série de protubérances en étirant à cet endroit la matière de cette gaine, de façon à augmenter sa surface de contact avec la mâchoire respective, et ce par enfoncement d'une pluralité de plots prévus en saillie sur la mâchoire de serrage placée du côté intérieur ;on the one hand, the end of such a metal sheath is clamped together and the corresponding end of the thick external plastic sheath, provided around the latter, between the two clamping jaws used, by stamping at the same time, in the metal sheath, a series of protrusions by stretching there the material of this sheath, so as to increase its contact surface with the respective jaw, and this by driving in a plurality of studs provided in projection on the clamping jaw on the inside;

-d'autre part, au moyen de ces mêmes plots saillants, et en prévoyant une arête vive sur t'extrémité d'entrée des trous ménagées en correspondance sur l'autre mâchoire de serrage, on détache les portions correspondantes de la gaine externe en matière plastique du câble correspondant et on élimine le revêtement plastique existant sur la face extene de la gaine en métal et ce, à l'endroit de chaque protubérance saillante emboutie dans celle-ci.on the other hand, by means of these same projecting studs, and by providing a sharp edge on the entry end of the holes provided in correspondence on the other clamping jaw, the corresponding portions of the outer sheath are detached. plastic material of the corresponding cable and the existing plastic coating on the external face of the metal sheath is eliminated, at the location of each protruding projection stamped therein.

Ainsi, grâce à la seule opération de serrage des deux mâchoires de connexion, on obtient à la fois :

  • -le découpage de la gaine externe épaisse, en matière plastique, à l'endroit des plots de l'une de ces mâchoires,
  • -l'élimination du revêtement externe de la gaine en métal à ces mêmes endroits,
  • -et, l'étirage de la matière même de la gaine en métal du fait de l'emboutissage de celle-ci sous forme de protubérances, ce qui augmente donc considérablement les surfaces de contact avec les mâchoires de connexion.
Thus, thanks to the single clamping operation of the two connection jaws, we obtain both:
  • the cutting of the thick outer sheath, of plastic material, at the location of the studs of one of these jaws,
  • -the elimination of the external coating of the metal sheath in these same places,
  • -and, the drawing of the same material of the metal sheath due to the stamping of the latter in the form of protuberances, which therefore considerably increases the contact surfaces with the connection jaws.

Or, ce résultat extrêmement avantageux est obtenu sans aucune opération préliminaire de préparation.However, this extremely advantageous result is obtained without any preliminary preparation operation.

Cependant, la présente invention a également pour object un dispositif de connexion pour la mise en oeuvre du procédé défini ci-dessus. Ce dispositif comporte deux lames métalliques, formant des mâchoires destinées à enserrer l'extrémité d'une telle gaine et dont l'une présente une série de trous destinés à recevoir des éléments saillants portés par l'autre. Or, ce dispositif est caractérisé en ce que les éléments ainsi prévus consistent en des plots comportant, en bout, une face plate ou légèrement bombée, et les trous ménagés dans la première mâchoire présentent une arête vive du côté tourné vers la seconde, les plots de cette seconde mâchoire étant adaptés à poinçonner la gaine externe en matière plastique d'un câble de télécommunications en y détachant une série d'éléments en forme de pastilles, tout en emboutissant des protubérances dans la gaine en métal, et en étirant la matière de ces protubérances, cependant que l'arête vive de l'entrée des trous de la seconde mâchoire assure l'élimination du revêtement plastique prévu sur la face externe de la gaine en métal et la mise à nu de celle-ci.However, the present invention also relates to a connection device for the implementation of the method defined above. This device comprises two metal blades, forming jaws intended to grip the end of such a sheath and one of which has a series of holes intended to receive projecting elements carried by the other. However, this device is characterized in that the elements thus provided consist of studs comprising, at the end, a flat or slightly curved face, and the holes made in the first jaw have a sharp edge on the side facing the second, the studs of this second jaw being adapted to punch the external plastic sheath of a telecommunications cable by detaching therefrom a series of elements in the form of pellets, while stamping protuberances in the metal sheath, and by stretching the material these protrusions, while the sharp edge of the entry of the holes of the second jaw ensures the elimination of the plastic coating provided on the outer face of the metal sheath and the exposure thereof.

Dans une forme de réalisation avantageuse, le présent dispositif affecte la forme d'une pince de serrage et celle-ci est pourvue de moyens aptes à assurer le blocage des deux mâchoires correspondantes, dans leur position de serrage.In an advantageous embodiment, the present device assumes the form of a clamp and this is provided with means capable of ensuring the locking of the two corresponding jaws, in their clamping position.

Cependant, d'autres particularités et avantages de l'objet de t'invention apparaîtront au cours de la description suivante. Celle-ci est donnée en référence au dessin annexé à simple titre indicatif, et sur lequel :

  • La figure 1 est une vue partielle en perspective de deux câbles de télécommunications dont les gaines de protection en métal sont raccordées par mise en oeuvre du procédé selon l'invention, et au moyen du présent dispositif.
  • La figure 2 est une vue correspondante en coupe longitudinale sur laquelle l'une des pinces de connexion est représentée avant serrage de ses deux mâchoires.
  • La figure 3 est une vue partielle en coupe longitudinale, mais à échelle différente, des deux mâchoires d'une telle pince de connexion, après serrage de celle-ci.
  • La figure 4 est une vue en élévation d'une autre forme de réalisation du dispositif de connexion selon l'invention.
  • La figure 5 en est une vue en plan de dessus.
  • La figure 6 est une vue en coupe longitudinale d'une autre forme de réalisation d'un dispositif de connexion selon l'invention.
  • Les figures 7 à 9 sont des vues en perspective de trois autres formes de réalisation encore du dispositif de connexion selon l'invention.
  • La figure 10 représente en perspective les deux mâchoires de la pince de connexion prévue dans une autre forme de réalisation de ce dispositif.
  • La figure 11 est une vue en perspective illustrant l'utilisation du dispositif correspondant de connexion.
  • La figure 12 est une vue partielle en coupe axiale de deux câbles de télécommunication dont les gaines de protection en métal sont raccordées au moyen de ce dispositif.
However, other features and advantages of the subject of the invention will become apparent from the following description. This is given with reference to the attached drawing for information only, and in which:
  • Figure 1 is a partial perspective view of two telecommunications cables whose metal protective sheaths are connected by implementing the method according to the invention, and by means of this device.
  • Figure 2 is a corresponding view in longitudinal section on which one of the connection clamps is shown before clamping its two jaws.
  • Figure 3 is a partial view in longitudinal section, but on a different scale, of the two jaws of such a connection clamp, after tightening thereof.
  • Figure 4 is an elevational view of another embodiment of the connection device according to the invention.
  • Figure 5 is a top plan view.
  • Figure 6 is a longitudinal sectional view of another embodiment of a connection device according to the invention.
  • Figures 7 to 9 are perspective views of three other embodiments of the connection device according to the invention.
  • Figure 10 shows in perspective the two jaws of the connection clamp provided in another embodiment of this device.
  • Figure 11 is a perspective view illustrating the use of the corresponding connection device.
  • FIG. 12 is a partial view in axial section of two telecommunication cables, the metal protective sheaths of which are connected by means of this device.

Les figures 1 et 2 illustrent l'application du procédé de connexion selon l'invention pour réaliser une liaison conductrice entre les gaines de protection 1 en métal de deux câbles 2 de télécommunications comportant chacun une gaine externe 3 relativement épaisse en matière plastique, par exemple polyéthylène. En conséquence, il fait emploi de deux dispositifs de connexion 4 raccordés par une tresse conductrice 5.Figures 1 and 2 illustrate the application of the connection method according to the invention to achieve a conductive connection between the protective sheaths 1 of metal of two telecommunications cables 2 each having an outer sheath 3 relatively thick in plastic material, for example polyethylene. Consequently, it uses two connection devices 4 connected by a conductive braid 5.

Chacun de ces dispositifs est constitué par deux plaquettes métalliques 6 et 7 reliées par une zone fléxible 8 d'articulation, de façon que celles-ci puissent jouer le rôle de mâchoires de serrage et de connexion. L'une de ces mâchoires porte, sur sa face interne, une série de plots saillants 9 dont la hauteur h est supérieure à l'épaisseur g de la gaine externe 3 des câbles 2. La face terminale de ces plots est plate ou légèrement bombée, comme cela est le cas dans l'exemple représenté à la figure 3.Each of these devices consists of two metal plates 6 and 7 connected by a flexible area 8 of articulation, so that these can play the role of clamping jaws and connection. One of these jaws carries, on its internal face, a series of projecting studs 9 whose height h is greater than the thickness g of the outer sheath 3 of the cables 2. The end face of these studs is flat or slightly curved , as is the case in the example shown in Figure 3.

Quant à la seconde mâchoire 7 de chaque dispositif de connexion, elle présente une série de trous 10 en regard des différents plots 9. Comme il sera expliqué par la suite, ces trous sont destinés à recevoir l'extrémité de ces divers plots. Selon une caractéristique essentielle, ces trous comportent une arête vive à leur extrémité d'entrée, c'est-à-dire à l'endroit de leur extrémité située sur la face interne de la mâchoire correspondante 7. Ces trous ont une section de même contour que les plots 9, par exemple un contour circulaire. De plus, leur section n'est que très légèrement supérieure à celle des plots 9, tout au moins dans leur partie attenante à leur extrémité d'entrée.As for the second jaw 7 of each connection device, it has a series of holes 1 0 opposite the different studs 9. As will be explained below, these holes are intended to receive the end of these various studs. According to an essential characteristic, these holes have a sharp edge at their entry end, that is to say at the place of their end situated on the internal face of the corresponding jaw 7. These holes have a section of the same contour as the studs 9, for example a circular contour. In addition, their section is only very slightly greater than that of the studs 9, at least in their part adjoining their entry end.

Comme représenté sur la figure 3, chacun de ces trous peut comporter une partie évasée 11 faisant suite à une partie cylindrique 12 dont la profondeur p correspond à la distance d'enfoncement des plots 9 correspondants.As shown in Figure 3, each of these holes may include a flared portion 11 following a cylindrical portion 12 whose depth p corresponds to the driving distance of the pads 9 corresponding.

Pour mettre en place un tel dispositif de connexion sur l'extrémité d'un câble de télécommunications 2, il suffit de pratiquer une fente 13 dans l'ensemble des deux gaines de protection prévues sur ce câble, c'est-à-dire l'ensemble formé par la gaine intérieure 1 en métal et la gaine externe épaisse 3 en matière plastique, sans qu'il y ait lieu de séparer ces deux gaines. On place ensuite les deux mâchoires 6 et 7 à cheval sur l'extrémité de ces deux gaines comme représenté sur la partie gauche de la figure 2, c'est-à-dire en disposant la mâchoire 6 du côté intérieur et la mâchoire 7 du côté extérieur, de façon que les plots 9 de la mâchoire 6 soient placés en regard de la face interne de la gaine 1 en métal. Enfin, on serre fortement ces deux mâchoires l'une contre l'autre pour les amener dans la position représentée sur la partie droite de la figure 2.To set up such a connection device on the end of a telecommunications cable 2, it suffices to make a slot 13 in the assembly of the two protective sheaths provided on this cable, that is to say the 'assembly formed by the inner sheath 1 of metal and the thick outer sheath 3 of plastic, without there being any need to separate these two sheaths. The two jaws 6 and 7 are then placed astride the end of these two sheaths as shown on the left-hand side of FIG. 2, that is to say by placing the jaw 6 on the inside and the jaw 7 of the outer side, so that the studs 9 of the jaw 6 are placed opposite the inner face of the metal sheath 1. Finally, these two jaws are strongly clamped against one another to bring them into the position shown on the right-hand side of FIG. 2.

Lors de cette opération, les plots 9 s'enfoncent dans la gaine interne 1 en métal, puis dans la gaine externe 3 en matière plastique. Les parties correspondantes de cette dernière gaine se trouvent alors découpées par l'arête vive de l'extrémité d'entrée des trous 10 de la mâchoire externe 7, à l'intérieur desquels s'engage l'extrémité des plots 9. Ainsi ces derniers jouent en quelque sorte le rôle de poinçons dans la gaine externe 3 en détachant de celle-ci une série d'éléments 14 en forme de pastille dont le dégagement se trouve facilité par l'évasement 11 prévu dans chaque trou 10 (voir figure 3).During this operation, the studs 9 sink into the internal sheath 1 of metal, then into the external sheath 3 of plastic. The corresponding parts of this latter sheath are then cut by the sharp edge of the entry end of the holes 10 of the external jaw 7, inside which the end of the studs 9 engages. Thus the latter somehow play the role of punches in the outer sheath 3 by detaching therefrom a series of elements 14 in the form of a pellet, the release of which is facilitated by the flaring 11 provided in each hole 10 (see FIG. 3) .

Mais, en même temps, l'enfoncement des plots 9 dans la gaine 1 en métal a pour effet d'emboutir dans celle-ci une série de protubérances 15. Cependant, la formation de ces protubérances s'accompagne d'un étirage de la feuille de métal, par exemple d'aluminium, qui constitue la gaine 1 et ce, comme représenté à la figure 3. Il en résulte un accroissement important de la surface de contact de la face interne de cette gaine avec la mâchoire inférieure 6, et avec la surface des plots 9 de celle-ci.But, at the same time, the depression of the studs 9 in the metal sheath 1 has the effect of stamping therein a series of protuberances 15. However, the formation of these protuberances is accompanied by stretching of the sheet of metal, for example aluminum, which constitutes the sheath 1 and this, as shown in FIG. 3. This results in a significant increase in the contact surface of the internal face of this sheath with the lower jaw 6, and with the surface of the studs 9 thereof.

Cependant, ceci s'accompagne également d'une élimination du revêtement mince en matière plastique qui existe habituellement sur la surface externe de la gaine 1 en métal. Cette élimination est assurée par le frottement et le râpage de ce revêtement contre l'arête de l'entrée des trous 10. En conséquence, la gaine 1 en métal se trouve mise automatiquement à nu sur sa face externe, de sorte qu'il existe une bonne surface de contact de liaison entre celle-ci et les parois des trous 10 de la mâchoire externe 7 du dispositif de connexion correspondant.However, this is also accompanied by removal of the thin plastic coating which usually exists on the outer surface of the metal sheath 1. This elimination is ensured by the friction and the grating of this coating against the edge of the entry of the holes 10. Consequently, the metal sheath 1 is automatically exposed on its external face, so that there is a good bonding contact surface between the latter and the walls of the holes 10 in the external jaw 7 of the corresponding connection device.

Or, ces trois opérations -à savoir : découpage de la gaine externe 3 à l'endroit de chaque plot 9, emboutissage de protubérances 15 dans la gaine en métal et étirage de celle-ci à ces endroits et élimination du revêtement plastique à ces mêmes endroits -sont obtenues par une seule manoeuvre en l'occurrence par serrage des deux mâchoires 6 et 7 l'une contre l'autre et ce, sans opération préliminaire de préparation. Dans ces conditions le procédé selon l'invention permet de réaliser très facilement la connexion désirée, même si cette opération doit être effectuée en haut d'un support faisant partie d'une ligne aérienne. Or, on obtient une excellente connexion du fait de l'accroissement des surfaces de contact de la gaine 1 en métal avec les différentes parties des mâchoires du dispositif de connexion correspondantHowever, these three operations-namely: cutting of the outer sheath 3 at the location of each stud 9, stamping of protuberances 15 in the metal sheath and drawing of the latter at these locations and elimination of the plastic coating at these same locations are obtained by a single maneuver in this case by clamping the two jaws 6 and 7 one against the other, without any preliminary preparation operation. Under these conditions, the method according to the invention makes it possible to very easily achieve the desired connection, even if this operation must be carried out at the top of a support forming part of an overhead line. However, an excellent connection is obtained due to the increase in the contact surfaces of the metal sheath 1 with the different parts of the jaws of the corresponding connection device.

Les mâchoires de ces dispositifs peuvent être maintenues en position de serrage par la simple élasticité des zones flexibles d'articulation 8 assurant la liaison des deux mâchoires de ces dispositifs ainsi que par le coincement des plots 9 à l'intérieur des trous 10. Cependant, il peut être avantageusement prévu des moyens supplémentaires de serrage permettant de bloquer les deux mâchoires de chaque dispositif de connexion, dans leur position de serrage.The jaws of these devices can be held in the clamping position by the simple elasticity of the flexible articulation zones 8 ensuring the connection of the two jaws of these devices as well as by the wedging of the studs 9 inside the holes 10. However, he can advantageously be provided additional clamping means for locking the two jaws of each connection device, in their clamping position.

Ainsi les figures 4 et 5 représentent une forme de réalisation du dispositif de connexion selon l'invention dans laquelle les deux mâchoires 6a et 7a s'articulent librement par l'intermédiaire d'un axe 16 et il est prévu une vis de serrage 17 permettant de les bloquer en position de serrage, comme représenté sur la partie droite de la figure 4. Cependant, la structure et l'agencement des deux mâchoires de chacun des deux dispositifs de connexion 4a ainsi prévus restent les mêmes que précédemment En effet, les mâchoires 6a de ces dispositifs présentent une série de plots 9, cependant que les mâchoires 7a comportent une série de trous correspondants.Thus, FIGS. 4 and 5 represent an embodiment of the connection device according to the invention in which the two jaws 6a and 7a are articulated freely by means of an axis 16 and there is provided a clamping screw 17 allowing to lock them in the clamping position, as shown on the right-hand side of FIG. 4. However, the structure and arrangement of the two jaws of each of the two connection devices 4a thus provided remain the same as before. In fact, the jaws 6a of these devices have a series of studs 9, while the jaws 7a have a series of corresponding holes.

La figure 6 représente une autre forme de réalisation dans laquelle les deux mâchoires 7b et 6b du dispositif correspondant s'articulent par l'intermédiaire d'une zone élastique 8b, de même que dans l'exemple des figures 1 à 3. Cependant, l'une de ces mâchoires, en l'occurrence la mâchoire 6b, porte un ou plusieurs organes d'accrochage 18 susceptibles d'assurer sa solidarisation avec l'autre mâchoire et ce, dans la position de serrage de celles-ci. A cet effet, ces organes d'accrochage peuvent être conçus pour s'engager dans des trous supplémentaires 19 prévus dans la mâchoire 7b.FIG. 6 represents another embodiment in which the two jaws 7b and 6b of the corresponding device are articulated via an elastic zone 8b, as in the example of FIGS. 1 to 3. However, the 'one of these jaws, in this case the jaw 6b, carries one or more hooking members 1 8 capable of ensuring its attachment to the other jaw and this, in the clamping position thereof. To this end, these attachment members can be designed to engage in additional holes 19 provided in the jaw 7b.

La figure 7 représente une autre forme de réalisation plus spécialement conçue pour assurer une liaison conductrice entre les gaines de protection en métal 1c de deux câbles de télécommunications 2c. Le dispositif correspondant est constitué par deux lames métalliques rigides 6c et 7c dont les extrémités sont réunies par des vis et écrous de serrage 20, de façon à pouvoir être serrées de part et d'autre des extrémités des deux ensembles formés par une gaine interne en métal 1c et la gaine externe correspondante 3c en matière plastique.FIG. 7 shows another embodiment more specifically designed to provide a conductive connection between the metal protective sheaths 1c of two telecommunications cables 2c. The corresponding device consists of two rigid metal blades 6c and 7c, the ends of which are joined by clamping screws and nuts 20, so that they can be tightened on either side of the ends of the two assemblies formed by an internal sheath in metal 1c and the corresponding external sheath 3c made of plastic.

La première lame 6c comporte, sur la face interne de chacune de ses extrémités, une série de plots 9 similaires à ceux prévus dans la forme de réalisation selon les figures 1 à 3. Quant à la seconde lame 7c, elle présente une série de trous correspondants. Ainsi ces deux lames sont en mesure de jouer le même rôle que les mâchoires 6 et 7 des drspositifs représentés aux figures 1 à 3.The first blade 6c comprises, on the internal face of each of its ends, a series of studs 9 similar to those provided in the embodiment according to Figures 1 to 3. As for the second blade 7c, it has a series of holes correspondents. Thus these two blades are able to play the same role as the jaws 6 and 7 of the devices shown in FIGS. 1 to 3.

La figure 8 représente une forme de réalisation spécialement conçue pour assurer la mise à la terre de la gaine de protection 1d d'un câble de télécommunscations 2d. Le dispositif correspondant affecte la forme d'une pince dont les deux mâchoires 6d et 7d peuvent être serrées de part et d'autre de l'ensemble formé par l'extrémité de la gaine 1d en métal et l'extrémité correspondante de la gaine externe 3d en matière plastique- Leur serrage peut alors être assuré par une vis et un écrou 20, comme dans la forme de réalisation précédente. A son extrémité opposée, la pince ainsi prévue est attachée à l'extrémité d'un conducteur 21 destiné à assurer une liaison à la terre.FIG. 8 represents an embodiment specially designed to ensure the earthing of the protective sheath 1d of a telecommunication cable 2d. The corresponding device takes the form of a clamp, the two jaws 6d and 7d of which can be clamped on either side of the assembly formed by the end of the metal sheath 1d and the corresponding end of the external sheath Plastic 3d - Their tightening can then be ensured by a screw and a nut 20, as in the previous embodiment. At its opposite end, the clamp thus provided is attached to the end of a conductor 21 intended to provide an earth connection.

La figure 9 représente une autre forme de réalisation encore, destinée à assurer une liaison conductrice entre les gaines en métal 1e de deux câbles 2e de télécommunication. Le dispositif correspondant comprend deux pinces similaires à celles représentées aux figures 1 à 3, lesquelles sont reliées par une tresse conductrice 5e. Chacune de ces pinces comprend deux mâchoires 6 et 7 dont l'une porte une série de plots 9, cependant que l'autre présente des trous correspondants. Ce dispositif se différencie de celui des figures 1 à-3 par le fait qu'il comprend en outre un machon extérieur d'étanchéité. Celui-ci est constitué par un tronçon de tube 22 fendu sur touté sa longueur et qui est destiné à recevoir les extrémités correspondantes des deux câbles 2e, comme représente à la figure 9. Ce manchon peut ensuite être refermé et fixé sur ces câbles, par exemple au moyen de colliers de serrage.FIG. 9 represents yet another embodiment, intended to provide a conductive connection between the metal sheaths 1e of two second telecommunication cables. The corresponding device comprises two clips similar to those shown in Figures 1 to 3, which are connected by a conductive braid 5e. Each of these clamps comprises two jaws 6 and 7, one of which carries a series of studs 9, while the other has corresponding holes. This device differs from that of FIGS. 1 to 3 by the fact that it further comprises an outer sealing rod. This consists of a section of tube 22 split over its entire length and which is intended to receive the corresponding ends of the two cables 2e, as shown in FIG. 9. This sleeve can then be closed and fixed on these cables, by example using cable ties.

Or, la face interne de ce manchon est pourvue d'un revêtement métallisé destiné à éviter la formation de couples thermo-électriques. A cet effet, la tresse 5e de raccordement est fixée contre ce revêtement par un rivet métallique 23 ou tout autre organe approprié. Celui-ci a non seulement pour rôle d'assurer la liaison conductrice voulu, mais également d'assurer l'assemblage du manchon 22 avec les deux pinces du présent dispositif de connexion.However, the internal face of this sleeve is provided with a metallized coating intended to avoid the formation of thermoelectric couples. To this end, the 5th connection braid is fixed against this covering by a metal rivet 23 or any other suitable member. This has not only the role of ensuring the desired conductive connection, but also of ensuring the assembly of the sleeve 22 with the two clamps of this connection device.

Les figures 10 à 12 illustrenf une autre forme de réalisation encore du dispositif de connexion selon l'invention, laquelle est conçue pour éviter les risques de fluage des gaines externes 3 de deux câbles 2f de télécommunication. A cet effet, les deux mâchoires 6f et 7f, sur toute leur longueur, une section transversale de forme courbe et ces deux mâchoires sont adaptées à être emboîtées l'une dans l'autre, la partie convexe de la mâchoire 6f étant engagée à rintérieur de la partie concave de la mâchoire 7f. Grâce à la forme ainsi prévue pour ces deux mâchoires, on obtient, au moment de leur serrage, une contrainte de ces deux pièces et des parties des deux gaines qui sont pincées entre celles-ci, c'est-à-dire la gaine intérieure 1f en métal et la gaine externe 3f en matière plastique. Pour accroître encore ce pincement, la mâchoire externe 7f peut présenter un incurvement plus prononcé que la mâchoire interne 6f.FIGS. 10 to 12 illustrate yet another embodiment of the connection device according to the invention, which is designed to avoid the risks of creep of the external sheaths 3 of two telecommunication cables 2f. To this end, the two jaws 6f and 7f, over their entire length, a cross section of curved shape and these two jaws are adapted to be fitted one inside the other, the convex part of the jaw 6f being engaged inside. of the concave part of the jaw 7f. Thanks to the shape thus provided for these two jaws, one obtains, at the time of their tightening, a constraint of these two parts and parts of the two sheaths which are pinched between them, that is to say the inner sheath 1f in metal and the outer sheath 3f in plastic. To further increase this pinching, the external jaw 7f may have a more pronounced curvature than the internal jaw 6f.

La mâchoire 6f, qui est destinée à être placée du côté intérieur, porte des protubérances 9f similaires à celles prévues dans les autres formes de réalisation. Quant à la mâchoire 7f, elle présente, en concordance, des trous 10f. Les moyens de solidarisation de ces deux mâchoires après serrage consistent en deux pattes rabattables 24 prévues à l'une et l'autre extrémités de la mâchoire 6f. Ces pattes sont destinées à être rabattues sur les extrémités correspondantes de la mâchoire 7f après serrage (voir partie gauche de la figure 12).The jaw 6f, which is intended to be placed on the inner side, carries protrusions 9f similar to those provided in the other embodiments. As for the jaw 7f, it has, in concordance, holes 10f. The means for securing these two jaws after tightening consist of two folding tabs 24 provided at one and the other ends of the jaw 6f. These tabs are intended to be folded over the corresponding ends of the jaw 7f after tightening (see left part of FIG. 12).

De plus, la mâchoire 7f porte, à l'une de ces extrémités, une languette 25 susceptible à recevoir une pince de connexion 26 prévue à l'une et l'autre extrémités d'une tresse conductrice 27 destinée à réaliser la liaison électrique voulue entre les gaines métalliques 1f de deux câbles de télécommunication 2f.In addition, the jaw 7f carries, at one of these ends, a tongue 25 capable of receiving a connection clamp 26 provided at one and the other ends of a conductive braid 27 intended to make the desired electrical connection between the metallic sheaths 1f of two telecommunication cables 2f.

Cependant, le dispositif selon l'invention peut faire l'objet de nombreuses autres formes de réalisation. Ainsi les moyens de serrage des deux mâchoires pourraient être différents de ceux prévus dans les exemples décrits précédemment. Par ailleurs, au lieu de plots de section circulaire, ces dispositifs pourraient comporter des plots saillants de toute autre section, la forme des trous correspondants étant modifiée en conséquence.However, the device according to the invention can be the subject of numerous other embodiments. Thus the means for clamping the two jaws could be different from those provided in the examples described above. Furthermore, instead of studs of circular section, these devices could include protruding studs of any other section, the shape of the corresponding holes being modified accordingly.

Claims (7)

1. Procédé de connexion des gaines de protection en métal des câbles de télécommunications par pincement entre deux lames métalliques formant mâchoires de serrage et de connexion, caractérisé en ce que : -d'une part on pince ensemble l'extrémité de la gaine considérée (1) en métal et l'extrémité correspondante de la gaine externe épaisse (3) en matière plastique, prévue autour de celle-ci, entre deux mâchoires de serrage (6, 7) en emboutissant en même temps dans la gaine en métal une série de protubérances (15) en étirant à cet endroit la matière de cette gaine, de façon à augmenter sa surface de contact avec la mâchoire respective, et ce par enfoncement d'une pluralité de plots (9) prévus en saillie sur la mâchoire (6) placée du côté intérieur, -d'autre part, au moyen de ces mêmes plots saillants-(9), et en prévoyant une arête vive sur l'extrémité d'entrée des trous (10) ménagés en correspondance sur l'autre mâchoire (7) de serrage, on détache les portions correspondantes de la gaine externe (3) en matière plastique, et . on élimine le revêtement plastique existant sur la face externe de la gaine en métal (1 et ce à l'endroit de chaque protubérance saillante (15) emboutie dans celle-ci. 1. Method for connecting the metal protective sheaths of telecommunications cables by pinching between two metal blades forming clamping and connection jaws, characterized in that: on the one hand, the end of the sheath considered (1) made of metal and the corresponding end of the thick outer sheath (3) made of plastic material are clamped together, provided around the latter, between two clamping jaws ( 6, 7) by stamping at the same time in the metal sheath a series of protrusions (15) by stretching at this location the material of this sheath, so as to increase its contact surface with the respective jaw, and this by driving in a plurality of studs (9) provided projecting from the jaw (6) placed on the inside, on the other hand, by means of these same projecting studs (9), and by providing a sharp edge on the entry end of the holes (10) formed in correspondence on the other clamping jaw (7), the corresponding portions of the external plastic sheath (3) are detached, and. eliminating the plastic coating existing on the outer face of the metal sheath (1 and this at the location of each protruding protrusion (15) stamped therein. 2. Dispositif de connexion pour la mise en oeuvre du procédé selon la revendication 1, comportant deux lames métalliques formant des mâchoires de serrage, dont l'une présente une série de trous destinés à recevoir des éléments saillants portés par l'autre, caractérisé en ce que les éléments ainsi prévus consistent en des plots (9) comportant, en bout, une face plate ou légèrement bombée, et les trous (10) ménagés dans la première mâchoire (7) présentent une arête vive du côté tourné vers la seconde mâchoire (6), les plots (9) de cette seconde mâchoire étant adaptés à poinçonner la gaine externe (3) en matière plastique d'un câble de télécommunications en y détachant une série d'éléments (14) en forme de pastilles, tout en emboutissant des protubérances saillantes (15) dans la gaine intérieure en métal et en étirant la matière de ces protubérances, cependant que l'arête vive de l'entrée des trous (10) de la première mâchoire (7) assure l'élimination du revêtement plastique prévu sur la face externe de la gaine en métal et la mise à nu de celle-ci.2. Connection device for implementing the method according to claim 1, comprising two metal blades forming clamping jaws, one of which has a series of holes intended to receive projecting elements carried by the other, characterized in that the elements thus provided consist of studs (9) having, at the end, a flat or slightly curved face, and the holes (10) formed in the first jaw (7) have a sharp edge on the side facing the second jaw (6), the studs (9) of this second jaw being adapted to punch the external sheath (3) of plastic material of a telecommunications cable by detaching therefrom a series of elements (14) in the form of pellets, while stamping protruding protrusions (15) in the inner metal sheath and stretching the material of these protrusions, while the sharp edge of the entry of the holes (10) of the first jaw (7) ensures the removal of the coating plastic provided on the external face of the metal sheath and the exposure thereof. 3. Dispositif de connexion selon la revendication 2, caractérisé en ce que celui-ci comporte des moyens de blocage permettant de bloquer les deux mâchoires correspondantes (6a, 6b, 6c ou 7a, 7b, 7c) dans leur position de serrage, ces moyens de blocage pouvant consister par exemple en une vis de serrage (17 ou 20) ou un organe - (18) de solidarisation des deux mâchoires en position de serrage.3. Connection device according to claim 2, characterized in that it comprises blocking means making it possible to block the two corresponding jaws (6a, 6b, 6c or 7a, 7b, 7c) in their clamping position, these means blocking device which may consist for example of a clamping screw (17 or 20) or a member - (18) for securing the two jaws in the clamping position. 4. Dispositif de connexion selon l'une des revendications 2 et 3, caractérisé en ce que les deux mâchoires (6f et 7f) de celui-ci présentent une section transversale de forme courbe sur toute leur longueur, l'agencement étant tel que la mâchoire (6f), portant les plots saillants (9f) destinées à être engagées dans les trous (10f) de l'autre mâchoire puisse être emboîtée à l'intérieur de cette autre mâchoire - (7f).4. Connection device according to one of claims 2 and 3, characterized in that the two jaws (6f and 7f) thereof have a cross section of curved shape over their entire length, the arrangement being such that the jaw (6f), carrying the protruding studs (9f) intended to be engaged in the holes (10f) of the other jaw can be fitted inside this other jaw - (7f). 5. Dispositif de connexion pour la mise en oeuvre du procédé selon la revendication 1 pour assurer une liaison conductrice entre les gaines en métal de deux câbles de télécommunications, caractérisé en ce qu'il est constitué par deux dispositifs de connexion selon l'une des revendications 2 à 4 qui sont reliés par une tresse conductrice (5) de raccordement5. Connection device for implementing the method according to claim 1 for ensuring a conductive connection between the metal sheaths of two telecommunications cables, characterized in that it is constituted by two connection devices according to one of claims 2 to 4 which are connected by a conductive braid (5) for connection 6. Dispositif de connexion pour la mise en oeuvre du procédé selon la revendication 1 pour assurer une liaison conductrice entre les gaines en métal de deux câbles de télécommunications, caractérisé en ce qu'il est constitué par deux lames métalliques (6c, 7c) d'un dispositif de connexion selon l'αne des revendications 2 à 4, qui sont suffisamment longues pour que leurs extrémités soient fixées respectivement sur l'une et l'autre gaines (1 c) à relier.6. Connection device for implementing the method according to claim 1 for ensuring a conductive connection between the metal sheaths of two telecommunications cables, characterized in that it is constituted by two metal blades (6c, 7c) d 'A connection device according to the αne of claims 2 to 4, which are long enough for their ends to be fixed respectively on one and the other sheaths (1 c) to be connected. 7. Dispositif de connexion selon la revendication 5, caractérisé en ce qu'il comporte un manchon externe (22) d'étanchéité dont la face interne est métallique et sur lequel est fixée la tresse (5e) de raccordement entre les deux dispositifs correspondants de connexion.7. Connection device according to claim 5, characterized in that it comprises an external sleeve (22) for sealing, the internal face of which is metallic and on which the braid (5e) for connection between the two corresponding devices is fixed. connection.
EP86400442A 1985-03-05 1986-03-04 Process and device for the connection of metallic protective sheaths of telecommunication cables Withdrawn EP0196942A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503182A FR2578694B1 (en) 1985-03-05 1985-03-05 METHOD AND DEVICE FOR CONNECTING PROTECTIVE SHEATHES IN ALUMINUM OF TELECOMMUNICATIONS CABLES
FR8503182 1985-03-05

Publications (1)

Publication Number Publication Date
EP0196942A1 true EP0196942A1 (en) 1986-10-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400442A Withdrawn EP0196942A1 (en) 1985-03-05 1986-03-04 Process and device for the connection of metallic protective sheaths of telecommunication cables

Country Status (3)

Country Link
EP (1) EP0196942A1 (en)
JP (1) JPS61266004A (en)
FR (1) FR2578694B1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP4087064A1 (en) * 2021-05-03 2022-11-09 3M Innovative Properties Company Cable shield clamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10146573C1 (en) * 2001-09-21 2003-06-18 Sgl Carbon Ag Internally ventilated brake disc made of fiber-reinforced ceramic composite materials with passages
JP2023083752A (en) * 2021-12-06 2023-06-16 株式会社オートネットワーク技術研究所 shield unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253247A (en) * 1963-12-05 1966-05-24 Minnesota Mining & Mfg Electrical connector
US3753213A (en) * 1972-01-07 1973-08-14 Thomas & Betts Corp Method and means for connecting to a metallically sheathed cable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253247A (en) * 1963-12-05 1966-05-24 Minnesota Mining & Mfg Electrical connector
US3753213A (en) * 1972-01-07 1973-08-14 Thomas & Betts Corp Method and means for connecting to a metallically sheathed cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4087064A1 (en) * 2021-05-03 2022-11-09 3M Innovative Properties Company Cable shield clamp
WO2022234362A1 (en) * 2021-05-03 2022-11-10 3M Innovative Properties Company Cable shield clamp

Also Published As

Publication number Publication date
FR2578694B1 (en) 1987-06-26
JPS61266004A (en) 1986-11-25
FR2578694A1 (en) 1986-09-12

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