EP0452220B1 - Interconnection device for coupling electrical cables without stripping their insulation - Google Patents

Interconnection device for coupling electrical cables without stripping their insulation Download PDF

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Publication number
EP0452220B1
EP0452220B1 EP91400970A EP91400970A EP0452220B1 EP 0452220 B1 EP0452220 B1 EP 0452220B1 EP 91400970 A EP91400970 A EP 91400970A EP 91400970 A EP91400970 A EP 91400970A EP 0452220 B1 EP0452220 B1 EP 0452220B1
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EP
European Patent Office
Prior art keywords
jaws
pairs
pair
cable
fact
Prior art date
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EP91400970A
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German (de)
French (fr)
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EP0452220A1 (en
Inventor
Eric D. Sauer
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Societe Industrielle de Construction dAppareils et de Materiel Electriques SICAME SAS
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Societe Industrielle de Construction dAppareils et de Materiel Electriques SICAME SAS
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws

Definitions

  • the present invention relates to an interconnection device making it possible to electrically connect two cables to each other, each of them being formed of a metallic core surrounded by an insulating sheath, without having to strip them, comprising jaws equipped with sharp members arranged in opposition in two paired systems each of which is assigned to a respective cable, at least one of the sharp members of one of the systems being metallic and electrically connected to at least one of the sharp members , also metallic, of the other system, the sharp members of each system being capable of penetrating the insulator of the corresponding cable when the jaws between which the cable has been introduced, and making electrical contact with the cable core.
  • Interconnection devices of this type are known, in which the two aforementioned sharp member systems are carried by a single pair of jaws common to the two cables.
  • Such an arrangement described for example in patent application FR 2 414 800, has the drawback of requiring the simultaneous positioning of the two cables before tightening the jaws which will ensure interconnection.
  • the jaws must be able to tilt relative to each other to accept cables of different diameter which, therefore, may not be properly gripped.
  • Application FR-A-2 566 191 also discloses an interconnection device making it possible in particular to carry out the electrical connection of two cables between them. It comprises two pairs of jaws equipped with sharp perforating members arranged in opposition and independent clamping means are provided to allow a clamping of each of these pairs according to a rectilinear movement stroke.
  • the present invention overcomes the drawbacks of the aforementioned devices by providing, in a device of the type considered with two pairs of jaws, sharp members of each of the two pairs of jaws which are produced in the form of flat teeth each situated in a transverse plane relative to the axial direction of the cables to be connected, preferably perpendicular to this direction, and joined in pairs, the teeth of each pair offering cutting edges turned one towards the other obliquely with respect to the direction of clamping of the jaws on the cable and arranged symmetrically on either side of the mediating plane of the cable parallel to this direction.
  • Such an interconnection device makes it possible to mount and connect each of the cables separately.
  • the clamping of each of the two pairs of jaws is carried out in a pure translational movement, without any tilting, so that the two cables can be identically gripped optimally.
  • each pair of jaws comprises a jaw fixed relative to said guide means and a movable jaw, movable along these.
  • each pair of jaws is provided with a snap which ensures an erasable holding of the movable jaw in a loosening position, which facilitates the handling of the device and the assembly of the cables.
  • the two fixed jaws are mutually integral and arranged back to back, the two movable jaws being arranged on either side of the set of two fixed jaws.
  • the clamping means of the jaws may comprise two independent screws, each being assigned to a respective pair of jaws and passing through one of the jaws to be screwed into the other jaw of this pair.
  • they may comprise a screw common to the two pairs of jaws, which passes through the movable jaw of one of the pairs and all of the two fixed jaws to go to be screwed into the other movable jaw.
  • the snap-fitting of one of the pairs of jaws should be designed to yield, with respect to the tightening force applied by said screw, more difficult than that of the other pair of jaws.
  • the actuation of the clamping screw firstly brings the pair of jaws closer together, the latching yielding more easily, then from the other pair of jaws.
  • the snap which gives the most difficulty is designed to be able to maintain the corresponding movable jaw in two adjacent loosening positions; this arrangement ensures that this movable jaw is maintained in the interval between the two operating phases where only a first cable has been mounted in the device.
  • the interconnection of the two cables is carried out in a very simple manner when at least one of the sharp members of each of the fixed jaws is metallic and these sharp members are electrically connected to each other.
  • Figures 1 and 2 show, respectively in elevation and in plan with partial sections, an interconnection device according to the invention, in a first version.
  • FIG. 3 represents a view along arrow III of one of the movable jaws of the device of FIG. 2.
  • FIGS. 4a to 4d represent a second version of an interconnection device according to the invention, respectively illustrating four stages of the assembly of cables to be interconnected.
  • the interconnection device shown in Figures 1 and 2 comprises two pairs of jaws 1 and 2 composed respectively of a fixed jaw 1f, 2f and a movable jaw 1m, 2m.
  • Each of these jaws is equipped with flat teeth 3 which, when the jaws of a pair are tight, penetrate through their cutting edges 20 the insulating sheath 4 of an electric cable 5, 6 placed between the jaws of this pair, until it comes into contact with the conductive core 7 of the cable , as can be seen in Figure 4b for the jaws of pair 2.
  • the fixed jaws 1f, 2f are glued back to back and fixedly attached to a main body 8 of insulating material, for example of polyester loaded with glass fibers. At least some of the teeth 3 of the fixed jaws 1f, 2f are made of metal and are connected from one jaw to the other by a conductive bar 19 intended to ensure the transfer of electric current between the cables.
  • the movable jaws 1m, 2m In front of these fixed jaws are arranged the movable jaws 1m, 2m; these, which can be made of the same insulating material as the body 8, have a rectangular opening 9 through which each is engaged on one end of a metal bar 10 of conjugate section, integral with the body 8; this bar thus ensures the guide of the movable jaws 1m, 2m according to a rectilinear translational movement which allows them to come to grip by their flat teeth 3 the cables 5, 6, the longitudinal axes of which are parallel to each other and perpendicular to the sliding direction D joint of movable jaws 1m, 2m.
  • Each of the movable jaws 1m, 2m is assigned a specific clamping screw 11, 12.
  • the screw 11 has a head 11a which is applied to the outer face of a metal plate 1a for load recovery belonging to the jaw 1m; the barrel of this screw passes through this plate by a bore the passage where the screw can rotate freely, while its threaded end is engaged in a threaded channel 13 formed in the bar 10, from one end thereof to its other end where is engaged symmetrically the screw 12 for clamping the movable jaw 2m, identical to the screw 11 and arranged in the same way.
  • Each of the movable jaws 1m, 2m has a notch 14 in which a boss 15 can be engaged, carried by an elastic tongue 16 of latching belonging to the body 8; a movable jaw is, in this situation, maintained in a loosening position, away from the fixed fixed jaw.
  • the flat teeth 3 fitted to the jaws are of the type described in patent application FR-A-2 661 045 filed on the same day with the same name for a connection device. As shown, these teeth, contained in planes perpendicular to the axial direction of the cables 5, 6 are joined in pairs on each of the jaws. Their cutting edges 20, in the form of quarter circles, extend obliquely with respect to each other so as to reveal between them a curvilinear reentrant angle by which each pair of teeth 3 comes to cover the corresponding cable before d 'enter it.
  • the interconnection device described makes it possible in particular to produce a junction cable 6 on a main cable 5. Thanks to the fact that the clamping means of the jaws are constituted by two screws 11, 12 respectively assigned to one and to the other of the pairs of jaws 1, 2, these can be clamped independently on the corresponding cable. It is therefore possible to connect to the device first of all the drop cable 6, then to connect to the main cable the device already subject to the drop cable.
  • the interconnection device shown in Figures 4a to 4d has a general structure similar to that of the device previously described with reference to Figures 1 to 3.
  • the latter can move in translation, guided on the bar 10 secured to the main body 8, under the action of clamping means acting by means of plates 1a, 2a belonging respectively jaws 1m, 2m.
  • Each of these can be locked in the loosening position by a snap comprising the elastic tongue 16, the boss 15 of which is capable of coming to engage in the corresponding notch 14 of the jaw.
  • the jaw tightening means comprise a single screw 21 common to the two pairs of jaws 1, 2.
  • This screw passes through a bore through the plate 1a of the movable jaw 1m, against which its head 21a is supported, then the bar 10 by a channel 23 similar to the channel 13 of the previous device, but not threaded, to engage at its end - threaded - in a threaded hole 24 that includes the plate 2a of the other movable jaw 2m .
  • a second notch 14 ′ is provided, close to the notch 14, where the boss 15 is immediately housed, restoring the maintenance of the jaw 1m in a second loosening position (FIG. 4c ) slightly closer to the corresponding fixed jaw 1f than the first loosening position defined by the notch 14.
  • the main cable 5 is put in place between the jaws of the pair 1 and the screw 21 is again actuated.
  • This brings the fixed jaw 1f closer to the movable jaw 1m, the boss 15 of its snap having escaped the second notch 14 ′.
  • the flat teeth 3 of these jaws penetrate the insulation 4 of the cable until it touches its core 7 (FIG. 4d).
  • the elastic interconnection of the cables 5 and 6 is then completed, via the flat teeth 3 conducting the fixed jaws 1f, 2f and the conducting bar 19 which connects them.

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  • Processing Of Terminals (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Communication Cables (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Cable Accessories (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Manipulator (AREA)

Abstract

The invention relates to an interconnection device enabling the electrical coupling together of two insulated cables (5, 6) to be performed without having to strip them, comprising two pairs (1, 2) of jaws equipped with sharp-edged members (3) disposed in opposition as two paired systems capable of penetrating the insulation of the cables when, with the aid of tightening means, the jaws are moved together mutually, producing an electrical contact with the core of each cable. Each pair of jaws comprises one of the said systems of sharp-edged members and the means for tightening the pairs of jaws comprise two screws (11, 12) enabling the latter to be tightened independently of each other, the mutual displacement travel of the jaws of each pair being rectilinear and bounded by a guide bar (10) for translational movement. <IMAGE>

Description

La présente invention se rapporte à un dispositif d'interconnexion permettant d'effectuer le raccordement électrique de deux câbles entre eux, chacun d'eux étant formé d'une âme métallique entourée d'une gaine isolante, sans avoir à les dénuder, comprenant des mâchoires équipées d'organes acérés disposés en opposition en deux systèmes jumelés dont chacun est affecté à un câble respectif, au moins l'un des organes acérés de l'un des systèmes étant métallique et relié électriquement à au moins l'un des organes acérés, également métallique, de l'autre système, les organes acérés de chaque système étant capables de pénétrer l'isolant du câble correspondant lorsqu'on fait se rapprocher mutuellement, à l'aide de moyens de serrage, les mâchoires entre lesquelles le câble a été introduit, et venant réaliser un contact électrique avec l'âme du câble.The present invention relates to an interconnection device making it possible to electrically connect two cables to each other, each of them being formed of a metallic core surrounded by an insulating sheath, without having to strip them, comprising jaws equipped with sharp members arranged in opposition in two paired systems each of which is assigned to a respective cable, at least one of the sharp members of one of the systems being metallic and electrically connected to at least one of the sharp members , also metallic, of the other system, the sharp members of each system being capable of penetrating the insulator of the corresponding cable when the jaws between which the cable has been introduced, and making electrical contact with the cable core.

On connaît des dispositifs d'interconnexion de ce genre, dans lesquels les deux systèmes d'organes acérés précités sont portés par une unique paire de mâchoires commune aux deux câbles. Une telle disposition, décrite par exemple dans la demande de brevet FR 2 414 800, présente l'inconvénient de nécessiter une mise en place simultanée des deux câbles avant d'effectuer le serrage des mâchoires qui en assurera l'interconnexion. En outre, les mâchoires doivent pouvoir basculer l'une par rapport à l'autre pour accepter des câbles de diamètre différent lesquels, dès lors, risquent de n'être pas correctement saisis.Interconnection devices of this type are known, in which the two aforementioned sharp member systems are carried by a single pair of jaws common to the two cables. Such an arrangement, described for example in patent application FR 2 414 800, has the drawback of requiring the simultaneous positioning of the two cables before tightening the jaws which will ensure interconnection. In addition, the jaws must be able to tilt relative to each other to accept cables of different diameter which, therefore, may not be properly gripped.

On connait également par la demande FR-A-2 566 191 un dispositif d'interconnexion permettant notamment d'effectuer le raccordement électrique de deux câbles entre eux. Il comprend deux paires de mâchoires équipées d'organes de perforation acérés disposés en opposition et des moyens de serrage indépendants sont prévus pour permettre un serrage de chacune de ces paires selon une course de déplacement rectiligne.Application FR-A-2 566 191 also discloses an interconnection device making it possible in particular to carry out the electrical connection of two cables between them. It comprises two pairs of jaws equipped with sharp perforating members arranged in opposition and independent clamping means are provided to allow a clamping of each of these pairs according to a rectilinear movement stroke.

La présente invention permet de remédier aux inconvénients des dispositifs précités en prévoyant, dans un dispositif du genre considéré à deux paires de mâchoires, des organes acérés de chacune des deux paires de mâchoires qui sont réalisés sous la forme de dents plates situées chacune dans un plan transversal par rapport à la direction axiale des câbles à raccorder, de préférence perpendiculaire à cette direction, et réunies par paires, les dents de chaque paire offrant des arêtes tranchantes tournées l'une vers l'autre obliquement par rapport à la direction de serrage des mâchoires sur le câble et disposées symétriquement de part et d'autre du plan médiateur du câble parallèle à cette direction.The present invention overcomes the drawbacks of the aforementioned devices by providing, in a device of the type considered with two pairs of jaws, sharp members of each of the two pairs of jaws which are produced in the form of flat teeth each situated in a transverse plane relative to the axial direction of the cables to be connected, preferably perpendicular to this direction, and joined in pairs, the teeth of each pair offering cutting edges turned one towards the other obliquely with respect to the direction of clamping of the jaws on the cable and arranged symmetrically on either side of the mediating plane of the cable parallel to this direction.

Un tel dispositif d'interconnexion permet de monter et de connecter séparément chacun des câbles. En particulier, il est possible de réaliser un pré-montage d'un câble de dérivation sur le dispositif, puis d'aller connecter celui, muni du câble de dérivation, sur un câble principal. On peut inversement déconnecter un câble de dérivation d'un câble principal sans détacher de ce dernier le dispositif. En outre, le serrage de chacune des deux paires de mâchoires s'effectue suivant un pur mouvement de translation, sans aucun basculement, de sorte que les deux câbles peuvent être identiquement saisis de façon optimale.Such an interconnection device makes it possible to mount and connect each of the cables separately. In particular, it is possible to pre-mount a drop cable on the device, then go and connect the one, fitted with the drop cable, to a main cable. Conversely, it is possible to disconnect a branch cable from a main cable without detaching the device from the latter. In addition, the clamping of each of the two pairs of jaws is carried out in a pure translational movement, without any tilting, so that the two cables can be identically gripped optimally.

De préférence, chaque paire de mâchoires comprend une mâchoire fixe par rapport auxdits moyens de guidage et une mâchoire mobile, déplaçable le long de ceux-ci.Preferably, each pair of jaws comprises a jaw fixed relative to said guide means and a movable jaw, movable along these.

Il convient par ailleurs que chaque paire de mâchoires soit pourvue d'un encliquetage qui assure un maintien effaçable de la mâchoire mobile en une position de desserrage, ce qui facilite la manipulation du dispositif et le montage des câbles.It should also be that each pair of jaws is provided with a snap which ensures an erasable holding of the movable jaw in a loosening position, which facilitates the handling of the device and the assembly of the cables.

Dans une forme de réalisation avantageuse, les deux mâchoires fixes sont mutuellement solidaires et disposées dos à dos, les deux mâchoires mobiles étant disposées de part et d'autre de l'ensemble des deux mâchoires fixes.In an advantageous embodiment, the two fixed jaws are mutually integral and arranged back to back, the two movable jaws being arranged on either side of the set of two fixed jaws.

Les moyens de serrage des mâchoires peuvent comprendre deux vis indépendantes, chacune étant affectée à une paire de mâchoires respective et traversant l'une des mâchoires pour se visser dans l'autre mâchoire de cette paire. En variante, ils peuvent comprendre une vis commune aux deux paires de mâchoires, qui traverse la mâchoire mobile de l'une des paires et l'ensemble des deux mâchoires fixes pour aller se visser dans l'autre mâchoire mobile.The clamping means of the jaws may comprise two independent screws, each being assigned to a respective pair of jaws and passing through one of the jaws to be screwed into the other jaw of this pair. As a variant, they may comprise a screw common to the two pairs of jaws, which passes through the movable jaw of one of the pairs and all of the two fixed jaws to go to be screwed into the other movable jaw.

Dans cette dernière forme de réalisation, il convient que l'encliquetage de l'une des paires de mâchoires soit conçu pour céder, vis-à-vis de l'effort de serrage appliqué par ladite vis, plus difficilement que celui de l'autre paire de mâchoires. Ainsi, l'actionnement de la vis de serrage assure le rapprochement tout d'abord de la paire de mâchoires dont l'encliquetage cède plus facilement, puis de l'autre paire de machoîres. De préférence, l'encliquetage qui cède le plus difficilement est conçu pour pouvoir assurer le maintien de la mâchoire mobile correspondante en deux positions de desserrage voisines; cette disposition assure le maintien de cette mâchoire mobile dans l'intervalle séparant les deux phases opératoires où seul un premier câble a été monté dans le dispositif.In this latter embodiment, the snap-fitting of one of the pairs of jaws should be designed to yield, with respect to the tightening force applied by said screw, more difficult than that of the other pair of jaws. Thus, the actuation of the clamping screw firstly brings the pair of jaws closer together, the latching yielding more easily, then from the other pair of jaws. Preferably, the snap which gives the most difficulty is designed to be able to maintain the corresponding movable jaw in two adjacent loosening positions; this arrangement ensures that this movable jaw is maintained in the interval between the two operating phases where only a first cable has been mounted in the device.

L'interconnexion des deux câbles est réalisée d'une manière très simple lorsque l'un au moins des organes acérés de chacune des mâchoires fixes est métallique et que ces organes acérés sont reliés électriquement entre eux.The interconnection of the two cables is carried out in a very simple manner when at least one of the sharp members of each of the fixed jaws is metallic and these sharp members are electrically connected to each other.

D'autres particularités et avantages de l'invention ressortiront de la description qui va suivre, en regard des dessins annexés, d'exemples de réalisation non limitatifs.Other features and advantages of the invention will emerge from the description which follows, with reference to the appended drawings, of nonlimiting exemplary embodiments.

Les figures 1 et 2 représentent, respectivement en élévation et en plan avec coupes partielles, un dispositif d'interconnexion selon l'invention, dans une première version.Figures 1 and 2 show, respectively in elevation and in plan with partial sections, an interconnection device according to the invention, in a first version.

La figure 3 représente une vue suivant la flèche III de l'une des mâchoires mobiles du dispositif de la figure 2.FIG. 3 represents a view along arrow III of one of the movable jaws of the device of FIG. 2.

Les figures 4a à 4d représentent une deuxième version d'un dispositif d'interconnexion selon l'invention, illustrant respectivement quatre étapes du montage de câbles à interconnecter.FIGS. 4a to 4d represent a second version of an interconnection device according to the invention, respectively illustrating four stages of the assembly of cables to be interconnected.

Le dispositif d'interconnexion représenté aux figures 1 et 2 comprend deux paires de mâchoires 1 et 2 composées respectivement d'une mâchoire fixe 1f, 2f et d'une mâchoire mobile 1m, 2m. Chacune de ces mâchoires est équipée de dents plates 3 qui, lorsque les mâchoires d'une paire sont serrées, pénètrent par leurs arêtes tranchantes 20 la gaine isolante 4 d'un câble électrique 5, 6 placé entre les mâchoires de cette paire, jusqu'à venir en contact avec l'âme conductrice 7 du câble, ainsi qu'on peut le voir sur la figure 4b pour les mâchoires de la paire 2.The interconnection device shown in Figures 1 and 2 comprises two pairs of jaws 1 and 2 composed respectively of a fixed jaw 1f, 2f and a movable jaw 1m, 2m. Each of these jaws is equipped with flat teeth 3 which, when the jaws of a pair are tight, penetrate through their cutting edges 20 the insulating sheath 4 of an electric cable 5, 6 placed between the jaws of this pair, until it comes into contact with the conductive core 7 of the cable , as can be seen in Figure 4b for the jaws of pair 2.

Les mâchoires fixes 1f, 2f sont accollés dos à dos et fixées solidairement à un corps principal 8 en matière isolante, par exemple en polyesther chargé de fibres de verre. Certaines au moins des dents 3 des mâchoires fixes 1f, 2f sont réalisées en métal et sont reliées d'une mâchoire à l'autre par une barrette conductrice 19 destinée à assurer le transfert du courant électrique entre les câbles. Face à ces mâchoires fixes sont disposées les mâchoires mobiles 1m, 2m; celles-ci, qui peuvent être réalisées dans le même matériau isolant que le corps 8, comportent une ouverture rectangulaire 9 par laquelle chacune est engagée sur une extrémité d'un barreau métallique 10 de section conjuguée, solidaire du corps 8; ce barreau assure ainsi le guidage des mâchoires mobiles 1m, 2m suivant un mouvement de translation rectiligne qui leur permet de venir saisir par leurs dents plates 3 les câbles 5, 6, dont les axes longitudinaux sont parallèles entre eux et perpendiculaires à la direction de coulissement D commune des mâchoires mobiles 1m, 2m.The fixed jaws 1f, 2f are glued back to back and fixedly attached to a main body 8 of insulating material, for example of polyester loaded with glass fibers. At least some of the teeth 3 of the fixed jaws 1f, 2f are made of metal and are connected from one jaw to the other by a conductive bar 19 intended to ensure the transfer of electric current between the cables. In front of these fixed jaws are arranged the movable jaws 1m, 2m; these, which can be made of the same insulating material as the body 8, have a rectangular opening 9 through which each is engaged on one end of a metal bar 10 of conjugate section, integral with the body 8; this bar thus ensures the guide of the movable jaws 1m, 2m according to a rectilinear translational movement which allows them to come to grip by their flat teeth 3 the cables 5, 6, the longitudinal axes of which are parallel to each other and perpendicular to the sliding direction D joint of movable jaws 1m, 2m.

A chacune des mâchoires mobiles 1m, 2m est affectée une vis de serrage 11, 12 particulière. La vis 11 possède une tête 11a qui s'applique sur la face extérieure d'une plaquette métallique 1a de reprise de charge appartenant à la mâchoire 1m; le fût de cette vis traverse cette plaquette par un alésage le passage où la vis peut tourner librement, tandis que son extrémité filetée est engagée dans un canal fileté 13 pratiqué dans le barreau 10, d'une extrémité de celui-ci à son autre extrémité où est engagée symétriquement la vis 12 de serrage de la mâchoire mobile 2m, identique à la vis 11 et agencée de la même façon.Each of the movable jaws 1m, 2m is assigned a specific clamping screw 11, 12. The screw 11 has a head 11a which is applied to the outer face of a metal plate 1a for load recovery belonging to the jaw 1m; the barrel of this screw passes through this plate by a bore the passage where the screw can rotate freely, while its threaded end is engaged in a threaded channel 13 formed in the bar 10, from one end thereof to its other end where is engaged symmetrically the screw 12 for clamping the movable jaw 2m, identical to the screw 11 and arranged in the same way.

Chacune des mâchoires mobiles 1m, 2m comporte une encoche 14 dans laquelle peut venir en prise un bossage 15 porté par une languette élastique 16 d'encliquetage appartenant au corps 8; une mâchoire mobile est, dans cette situation, maintenue en une position de desserrage, écartée de la mâchoire fixe conjuguée.Each of the movable jaws 1m, 2m has a notch 14 in which a boss 15 can be engaged, carried by an elastic tongue 16 of latching belonging to the body 8; a movable jaw is, in this situation, maintained in a loosening position, away from the fixed fixed jaw.

Les dents plates 3 équipant les mâchoires sont du type décrit dans la demande de brevet FR-A-2 661 045 déposée le même jour au même nom pour un dispositif de connexion. Comme représenté, ces dents, contenues dans des plans perpendiculaires à la direction axiale des câbles 5, 6 sont réunies par paires sur chacune des mâchoires. Leurs arêtes tranchantes 20, en forme de quarts de cercles, s'étendent obliquement l'une par rapport à l'autre de façon à faire apparaître entre elles un angle rentrant curviligne par lequel chaque paire de dents 3 vient coiffer le câble correspondant avant d'y pénétrer. Ainsi, lorsqu'on fait se rapprocher les mâchoires affectées à l'un ou à l'autre des câbles, le câble se trouve saisi par les arêtes des paires de dents opposées de ces mâchoires en quatre points espacés sur son pourtour; il en résulte un effet d'auto-centrage du câble et de maintien de sa cohésion s'il s'agit d'un câble multifilaire.The flat teeth 3 fitted to the jaws are of the type described in patent application FR-A-2 661 045 filed on the same day with the same name for a connection device. As shown, these teeth, contained in planes perpendicular to the axial direction of the cables 5, 6 are joined in pairs on each of the jaws. Their cutting edges 20, in the form of quarter circles, extend obliquely with respect to each other so as to reveal between them a curvilinear reentrant angle by which each pair of teeth 3 comes to cover the corresponding cable before d 'enter it. Thus, when the jaws assigned to one or the other of the cables are brought closer, the cable is caught by the edges of the pairs of opposite teeth of these jaws at four points spaced around its periphery; this results in an effect of self-centering of the cable and of maintaining its cohesion if it is a multi-wire cable.

Le dispositif d'interconnexion décrit permet en particulier de réaliser la jonction d'un câble de dérivation 6 sur un câble principal 5. Grâce au fait que les moyens de serrage des mâchoires sont constitués par deux vis 11, 12 affectées respectivement à l'une et à l'autre des paires de mâchoires 1, 2, celles-ci peuvent être serrées indépendamment sur le câble correspondant. Il est donc possible de connecter au dispositif tout d'abord le câble de dérivation 6 seul, puis de connecter au câble principal le dispositif déjà assujetti au câble de dérivation.The interconnection device described makes it possible in particular to produce a junction cable 6 on a main cable 5. Thanks to the fact that the clamping means of the jaws are constituted by two screws 11, 12 respectively assigned to one and to the other of the pairs of jaws 1, 2, these can be clamped independently on the corresponding cable. It is therefore possible to connect to the device first of all the drop cable 6, then to connect to the main cable the device already subject to the drop cable.

Le dispositif d'interconnexion représenté aux figures 4a à 4d présente une structure générale semblable à celle du dispositif précédemment décrit en regard des figures 1 à 3. On y retrouve les deux paires de mâchoires 1, 2 équipées de paires de dents plates 3, les deux mâchoires centrales 1f, 2f étant fixes et les deux mâchoires extrêmes 1m, 2m mobiles. Ces dernières peuvent se déplacer en translation, guidées sur le barreau 10 solidaire du corps principal 8, sous l'action de moyens de serrage agissant par l'intermédiaire des plaquettes 1a, 2a appartenant respectivement aux mâchoires 1m, 2m. Chacune de celles-ci peut être bloquée en position de desserrage par un encliquetage comprenant la languette élastique 16 dont le bossage 15 est susceptible de venir s'engager dans l'encoche correspondante 14 de la mâchoire.The interconnection device shown in Figures 4a to 4d has a general structure similar to that of the device previously described with reference to Figures 1 to 3. There are the two pairs of jaws 1, 2 equipped with pairs of flat teeth 3, the two central jaws 1f, 2f being fixed and the two extreme jaws 1m, 2m mobile. The latter can move in translation, guided on the bar 10 secured to the main body 8, under the action of clamping means acting by means of plates 1a, 2a belonging respectively jaws 1m, 2m. Each of these can be locked in the loosening position by a snap comprising the elastic tongue 16, the boss 15 of which is capable of coming to engage in the corresponding notch 14 of the jaw.

Toutefois, à la différence du dispositif précédent, les moyens de serrage des mâchoires comprennent une vis unique 21 commune aux deux paires de mâchoires 1, 2. Cette vis traverse par un alésage la plaquette 1a de la mâchoire mobile 1m, contre laquelle sa tête 21a prend appui, puis le barreau 10 par un cannal 23 semblable au canal 13 du dispositif précédent, mais non fileté, pour s'engager à son extrémité - filetée - dans un trou fileté 24 que comporte la plaquette 2a de l'autre mâchoire mobile 2m. De plus, afin de permettre un serrage indépendant de chacune des deux paires de mâchoires 1, 2, il est prévu que l'encliquetage 14, 15, 16 de la mâchoire mobile 2m de la paire 2 destinée à recevoir le câble de dérivation 6 s'efface plus facilement que celui de la mâchoire mobile 1m de l'autre paire 1 lorsqu'on agit sur la vis de serrage 21.However, unlike the previous device, the jaw tightening means comprise a single screw 21 common to the two pairs of jaws 1, 2. This screw passes through a bore through the plate 1a of the movable jaw 1m, against which its head 21a is supported, then the bar 10 by a channel 23 similar to the channel 13 of the previous device, but not threaded, to engage at its end - threaded - in a threaded hole 24 that includes the plate 2a of the other movable jaw 2m . In addition, in order to allow independent clamping of each of the two pairs of jaws 1, 2, provision is made for the snap-fastening 14, 15, 16 of the movable jaw 2m of the pair 2 intended to receive the 6 s branch cable. 'clears more easily than that of the movable jaw 1m of the other pair 1 when the clamping screw 21 is acted on.

En pratique, dans une première phase opératoire (figure 4a), les deux mâchoires mobiles étant maintenues par leurs encliquetages 14, 15, 16 en position de desserrage, on introduit le câble de dérivation 6 entre les mâchoires de la paire 2. On actionne alors la vis de serrage 21, qui tend à rapprocher l'une de l'autre les deux mâchoires mobiles 1m, 2m; toutefois, seule la mâchoire 2m correspondante se déplace, son encliquetage s'effaçant tandis que celui de la mâchoire 1m, plus rigide, continue à maintenir immobile cette dernière. Le serrage de la vis 21 se poursuivant le câble 6 se trouve saisi entre les deux mâchoires de la paire 2 et dont les dents plates 3 attaquent et pénètrent la gaine isolante, jusqu'à venir en contact avec son âme conductrice (figure 4b). La course de la mâchoire 2m se trouve alors arrêtée, de sorte que la force de serrage de la vis 21 se reporte entièrement sur l'autre mâchoire mobile 1m dont l'encliquetage 14, 15, 16 saute à son tour, indiquant par là que la connexion du câble 6 est achevée. Afin que la mâchoire 1m ainsi libérée ne puisse coulisser erratiquement le long du barreau de guidage 10, une seconde encoche 14′ est prévue, voisine de l'encoche 14, où le bossage 15 vient aussitôt se loger, rétablissant le maintien de la mâchoire 1m en une seconde position de desserrage (figure 4c) légèrement plus rapprochée de la mâchoire fixe 1f correspondante que la première position de desserrage définie par l'encoche 14.In practice, in a first operating phase (FIG. 4a), the two movable jaws being held by their snaps 14, 15, 16 in the released position, the branch cable 6 is introduced between the jaws of the pair 2. Then actuated the clamping screw 21, which tends to bring the two movable jaws 1m, 2m closer to one another; however, only the corresponding jaw 2m moves, its snap disappearing while that of the jaw 1m, more rigid, continues to keep the latter stationary. The tightening of the screw 21 continuing the cable 6 is caught between the two jaws of the pair 2 and whose flat teeth 3 attack and penetrate the insulating sheath, until it comes into contact with its conductive core (Figure 4b). The stroke of the jaw 2m is then stopped, so that the tightening force of the screw 21 is transferred entirely to the other movable jaw 1m, the snap of which 14, 15, 16 jumps in turn, thereby indicating that the connection of cable 6 is completed. So that the 1m jaw thus released cannot slide erratically along the guide bar 10, a second notch 14 ′ is provided, close to the notch 14, where the boss 15 is immediately housed, restoring the maintenance of the jaw 1m in a second loosening position (FIG. 4c ) slightly closer to the corresponding fixed jaw 1f than the first loosening position defined by the notch 14.

Puis, dans une deuxième phase opératoire, on met en place le câble principal 5 entre les mâchoires de la paire 1 et on actionne de nouveau la vis 21. Celle-ci fait se rapprocher de la mâchoire fixe 1f la mâchoire mobile 1m, le bossage 15 de son encliquetage ayant échappé à la seconde encoche 14′. Les dents plates 3 de ces mâchoires pénètrent l'isolant 4 du câble jusqu'à toucher son âme 7 (figure 4d). L'interconnexion élastique des câbles 5 et 6 est alors achevée, via les dents plates 3 conductrices des mâchoires fixes 1f, 2f et la barrette conductrice 19 qui les relie.Then, in a second operating phase, the main cable 5 is put in place between the jaws of the pair 1 and the screw 21 is again actuated. This brings the fixed jaw 1f closer to the movable jaw 1m, the boss 15 of its snap having escaped the second notch 14 ′. The flat teeth 3 of these jaws penetrate the insulation 4 of the cable until it touches its core 7 (FIG. 4d). The elastic interconnection of the cables 5 and 6 is then completed, via the flat teeth 3 conducting the fixed jaws 1f, 2f and the conducting bar 19 which connects them.

Claims (9)

  1. Coupling device for electrically interconnecting two cables (5, 6), each cable being constituted by a metal core surrounded by an insulating covering (4), the cables being interconnected without it being necessary to strip them, the device comprising two pairs (1, 2) of jaws each being fitted with sharp members (3) disposed facing one another in two coupled systems each of which is associated with a respective one of the cables, with at least one of the sharp members in one of the systems being made of metal and being electrically connected to at least one of the sharp members, likewise made of metal, of the other system, with the sharp members in each of the systems being capable of penetrating the insulation (4) of the corresponding cable when the jaws between which the cable has been inserted are caused to move towards each other by clamping means (11, 12) designed so as to allow the clamping of said pairs independently of each other, with the mutual displacement stroke of the jaws in each pair being rectilinear and defined by guide means for providing guidance in translation, thereby making electrical contact with the cable core, characterized by the fact that the sharp members of each of the two pairs of jaws are made in the form of flat teeth (3) each occupying a plane that extends transversely relative to the axial direction of the cables (5, 6) to be interconnected, and preferably perpendicularly to said direction, the teeth being combined in pairs, with the teeth in each pair having cutting edges that face each other obliquely relative to the direction in which the jaws clamp on the cable, with the teeth being disposed symmetrically on either side of the midplane of the cable parallel to said direction.
  2. Device according to claim 1, characterized by the fact that each pair (1, 2) of jaws comprises a jaw (1f, 2f) which is fixed relative to said guide means and a moving jaw (1m, 2m) displaceable therealong.
  3. Device according to claim 2, characterized by the fact that each pair of jaws is provided with snap-fastening means (14, 15, 16) for releaseably holding the moving jaw (1m, 2m) of the pair in an unclamped position.
  4. Device according to claim 2 or 3, characterized by the fact that the two fixed jaws (1f, 2f) are fixed together and disposed back to back, with the two moving jaws (1m, 2m) being disposed on opposite sides of the two assembled-together fixed jaws.
  5. Device according to any one of claims 1 to 4, characterized by the fact that the clamping means comprise two independent screws (11, 12) each being associated with a respective one of the pairs of jaws and each passing through one of the jaws of its pair and screwing into the other jaw of the pair.
  6. Device according to claims 3 and 4, characterized by the fact that the clamping means comprise a screw (21) common to both pairs (1, 2) of jaws, which screw passes through the moving jaw (1m) of one of the pairs, and through both of the fixed jaws (1f, 2f), and screws into the other moving jaw (2m).
  7. Device according to claim 6, characterized by that fact that the snap-fastening means of one of the pairs of jaws is designed to release in response to the clamping force applied by said screw (21) less easily than the snap-fastening means of the other pair of jaws.
  8. Device according to claim 7, characterized by the fact that the snap-fastening means which releases less easily is designed to be capable of holding the corresponding moving jaw in two adjacent unclamped positions.
  9. Device according to any one of claims 2 to 8, characterized by the fact that at least one of the sharp members (3) in each of the fixed jaws (1f, 2f) is made of metal and said sharp members are electrically interconnected.
EP91400970A 1990-04-12 1991-04-11 Interconnection device for coupling electrical cables without stripping their insulation Expired - Lifetime EP0452220B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9004742 1990-04-12
FR9004742A FR2661046B1 (en) 1990-04-12 1990-04-12 INTERCONNECTION DEVICE FOR CONNECTING TWO UNDENUDED ELECTRIC CABLES.

Publications (2)

Publication Number Publication Date
EP0452220A1 EP0452220A1 (en) 1991-10-16
EP0452220B1 true EP0452220B1 (en) 1995-08-23

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EP91400970A Expired - Lifetime EP0452220B1 (en) 1990-04-12 1991-04-11 Interconnection device for coupling electrical cables without stripping their insulation

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EP (1) EP0452220B1 (en)
AT (1) ATE126936T1 (en)
AU (1) AU7434791A (en)
DE (1) DE69112253T2 (en)
FI (1) FI911659A (en)
FR (1) FR2661046B1 (en)
NZ (1) NZ237815A (en)
PT (1) PT97351B (en)

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* Cited by examiner, † Cited by third party
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US5423694A (en) * 1993-04-12 1995-06-13 Raychem Corporation Telecommunications terminal block
GB9308515D0 (en) * 1993-04-15 1993-06-09 Sicame Electrical Dev Ltd Improvements relating to underground cable connectors
WO2000030216A1 (en) * 1998-11-17 2000-05-25 Utilux Pty. Limited Solar panel cable connector
US10888496B2 (en) 2015-09-17 2021-01-12 Corvida Medical, Inc. Medicament vial assembly
US10894317B2 (en) * 2015-10-13 2021-01-19 Corvida Medical, Inc. Automated compounding equipment for closed fluid transfer system
US10806181B2 (en) 2017-12-08 2020-10-20 Rai Strategic Holdings, Inc. Quasi-resonant flyback converter for an induction-based aerosol delivery device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414800A1 (en) * 1978-01-17 1979-08-10 Graipin Raymond Connector for two or more insulated cables - which are held separate by central block having rectangular flange, and securing wings
FR2566191B1 (en) * 1984-06-15 1986-11-14 Sicame Sa INSULATED BYPASS CONNECTOR FOR ELECTRICAL CABLES

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Publication number Publication date
PT97351A (en) 1993-05-31
AU7434791A (en) 1991-10-17
FI911659A0 (en) 1991-04-05
FR2661046A1 (en) 1991-10-18
FI911659A (en) 1991-10-13
ATE126936T1 (en) 1995-09-15
DE69112253T2 (en) 1996-02-15
DE69112253D1 (en) 1995-09-28
NZ237815A (en) 1994-10-26
EP0452220A1 (en) 1991-10-16
PT97351B (en) 1998-10-30
FR2661046B1 (en) 1992-08-14

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