EP1166394A1 - Self-stripping connecting device for two electric cables - Google Patents

Self-stripping connecting device for two electric cables

Info

Publication number
EP1166394A1
EP1166394A1 EP01907711A EP01907711A EP1166394A1 EP 1166394 A1 EP1166394 A1 EP 1166394A1 EP 01907711 A EP01907711 A EP 01907711A EP 01907711 A EP01907711 A EP 01907711A EP 1166394 A1 EP1166394 A1 EP 1166394A1
Authority
EP
European Patent Office
Prior art keywords
slots
stripping
pusher
connection device
slot
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Withdrawn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
EP01907711A
Other languages
German (de)
French (fr)
Inventor
Ariel Ruiz
Arsène Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB France SAS
Original Assignee
ABB Entrelec SAS
Entrelec SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Entrelec SAS, Entrelec SAS filed Critical ABB Entrelec SAS
Publication of EP1166394A1 publication Critical patent/EP1166394A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
    • H01R4/2454—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions forming a U-shape with slotted branches

Definitions

  • the present invention relates to a self-stripping connection device for two electric cables.
  • a self-stripping connection device makes it possible to connect an electric cable to a conductive part without it being necessary beforehand to strip one end of the electric cable.
  • the self-stripping connection device performs local stripping of the cable, for example by cutting the insulating sheath which is located around the conductive core, before making electrical contact between the conductive core thus locally stripped and the conductive part.
  • the documents EP-0 247 360 or even FR-2 723 474 disclose self-stripping connection devices.
  • a self-stripping connection device comprising two stripping slots is revealed by the document FR-2 675 953.
  • the two holding and stripping slots are aligned and are intended for the connection of the same electric wire.
  • the present invention therefore aims to provide a self-stripping connection device for connecting two cables of different diameters.
  • the device which it offers is a self-stripping connection device for at least two electric cables having a conductive core and an insulating sheath, the device comprising a stripping and retaining slot.
  • EP-0 247 360 discloses, for example, such a device.
  • this device comprises: - at least one other so-called second stripping and retaining slot (1 8), substantially parallel to the first and offset with respect to the direction of the slots,
  • a pusher intended to receive at least two electric cables and shaped so that each cable can be transversely facing a stripping and retaining slot, - connecting means between the slots and the pusher allowing relative movement of the slots and of the pusher and guiding this movement, and
  • the two stripping and retaining slots are made on a blade folded in a U having two parallel branches of different lengths, each slot opening at the free end of each branch.
  • the two stripping and retaining slots are then produced on the same conductive part.
  • the pusher comprises for example two profiled parts extending in the plane containing the two slots, transversely with respect to the slots and openings are advantageously provided for the passage of each slot and of the corresponding edges in the profiled parts .
  • the width of each opening is for example such that it allows the part carrying the corresponding slot to be guided and ensures that the edges of the slot are tightened in abutment on the metallic core of a connected cable.
  • the material used for the blade can therefore be chosen essentially for its qualities of good conductor without taking much account of its elastic mechanical qualities necessary to ensure good support of the edges of the slot on the bare conductive metallic core and thereby good contact. electric.
  • a screw is for example provided to ensure the displacement of the slots, this screw being engaged in a metal part connecting the two slots and immobile in translation relative to an insulating housing.
  • the relative movement between the slots and the pusher is for example a translation or else a pivoting movement.
  • the slots may be carried by parallel curved blades, for the pusher to be pivotally mounted and to have two housings which are substantially transverse to the slots, openings being provided for the passage of the blades carrying the slots.
  • a screwdriver blade can be provided to ensure the pivoting movement of the pusher.
  • a housing intended to receive the end of such a blade is then advantageously provided in the pusher.
  • the present invention also relates to a terminal block in which is placed a connection device as described above.
  • FIG. 1 is a perspective view showing the principle of a first embodiment, before connection of two electric cables,
  • FIG. 2 is a view corresponding to FIG. 1, the cables being connected
  • FIG. 3 is a sectional view along the section line III-III of the device of FIG. 1, the latter being arranged in an insulating housing,
  • Figure 4 is a sectional view along the section line IV-IV of Figure 3
  • Figure 5 is a view corresponding to the view of Figure 4, the cables shown in Figure 4 being connected, and
  • Figure 6 is a longitudinal sectional view of a second embodiment of a connection device according to the invention.
  • Figures 1 and 2 are perspective views showing a connection principle according to the invention while Figures 3 to 5 show the device of Figures 1 and 2 in place in an insulating housing 2.
  • Figures 1 and 2 we can see a screw 4, a metal blade 6 folded into a U, a pusher 8 and two cables 10, each cable having a conductive core 10a and an insulating sheath 10b.
  • the metal blade 6 has a base 1 2 to which are attached two parallel branches 14 and 1 6. It will be considered in the following description that the base 12 of the blade 6 is located in a horizontal plane while the branches 14 and 1 6 extend in a vertical plane.
  • Each branch 14, 1 6 has a stripping and retaining slot 1 8 which is here rectilinear and parallel to the longitudinal axis of the corresponding branch 14, 1 6. Each slot 1 8 therefore extends vertically.
  • the blade 6 is for example obtained from a flat flank by stamping resulting in cutting, then folding with possibly localized thinning.
  • Each stripping and retaining slot 1 8 has at one end, the end corresponding to the free end of the branch 14, 1 6 corresponding, a stripping mouth 20. The latter is obtained by symmetrical oblique cutting of the edges of the slot 1 8. This oblique cut makes it possible to obtain a flared mouth, the edges of which form an edge making it possible to start the sheath 10b of an electric cable 10 pushed into the mouth 20.
  • the blade 6 is for example made of copper or else of a copper alloy with a high proportion of copper.
  • the branches 14 and 1 6 have a different length.
  • branch 14 is the shortest.
  • the two slots 1 8 are substantially identical. These two slots are therefore offset in height and spaced from each other by a distance of the order of a few millimeters, or even a few tens of millimeters.
  • FIG. 1 an orthogonal coordinate system X, Y, Z has been represented, the Z axis defining the vertical and the X and Y axes a horizontal plane. It is assumed that the cables 10 extend parallel to the direction Y.
  • the stripping and retainer 1 8 are then offset relative to each other on the one hand along the Y axis and on the other hand along the Z axis.
  • the stripping slots are arranged in stairs or steps.
  • the base 12 of the blade 6 has a thread intended to cooperate with the threaded part 22 of the screw 4.
  • the pusher 8 has two profiled parts 24 and 26, the profiled part 24 being arranged above the profiled part 26.
  • the two profiled parts 24, 26 extend substantially along the axis Y. They are open profiled parts, the open side of the profile being oriented upwards, that is to say towards the blade 6.
  • the upper profiled part 24 is arranged, relative to the blade 6, so that it is crossed by the branch 1 6 but not by the branch 14.
  • An opening 28 is provided to allow passage to the branch 1 6.
  • the profiled parts 24 and 26 are thus in the form of a gutter extending horizontally, transversely to the branches 14 and 1 6 and serve as a housing for cables 10 to be connected.
  • the two profiled parts 24, 26 are for example made of steel. They can be linked to each other or be independent. In fact, it is planned to move the blade 6 relative to the pusher 8. This movement is done in the direction Z, that is to say the direction given by the slots 1 8. If the blade 6 moves, the profiled parts 24 and 26 are for example independent of one another while if the pusher 8 moves towards the blade 6, it is preferable to have two profiled parts integral with one another.
  • a cable 10 to be connected is introduced into each housing formed by the profiled parts 24 and 26.
  • the cable 10 placed in the upper profiled part 24 is pushed in the direction of the axis Y until it comes into abutment against the branch 1 6.
  • the cable placed in the lower housing of the profiled part 26 is associated with a stop not shown in the drawing. This stop is for example made in the insulating housing 2.
  • each cable 10 is stripped and its conductive core 10a is introduced between the parallel edges of the slot 18. An electrical contact is then made between the conductive core 10a and the blade 6.
  • the openings 30 and 32 respectively intended to receive these branches 14 and 1 6 respectively are dimensioned so that the edges of the slots 1 8 are each time tightened towards the conductive core 10a of the corresponding cable in the case of large conductors.
  • the elasticity of the branches 14 and 1 6 is sufficient to ensure contact.
  • the branches reinforced by the openings accept a wider connection range.
  • Figures 3 to 5 we can see the device of Figures 1 to 2 in place in the insulating housing 2.
  • Figure 3 shows how the insulating housing holds the screw 4 and the blade 6 in position.
  • the screw 4 has a head 36 at the periphery of which is an annular rib 38. The latter is placed in a groove 40 of size and shape adapted to receive it.
  • a core of synthetic material 42 is provided between the branches 14 and 1 6 so as to ensure perfect guidance of these branches during their translational movement. Any buckling phenomenon can thus be avoided during the stripping of a cable and its electrical connection.
  • the core 42 can also serve as a support for the end of the screw 4 opposite its head 36.
  • the screw 4 is unscrewed.
  • the blade 6 rises, carrying with it the conducting cables 10.
  • the upper cable 10 comes into abutment on the insulation of the housing 2 (FIG. 3) and the lower cable 10 on the profiled part 24.
  • the blade 6 continues its ascent and the stripping of the cables 10 is carried out.
  • Figure 6 shows an alternative embodiment of a connection device according to the invention.
  • the parts having a function similar to that of parts of FIGS. 1 to 5 use the same references as these parts but are increased by the number 100.
  • the branches 1 14 and 1 16 are the folded and curved ends of a conductive metal strip. These branches 1 14 and 1 1 6 have a radius of curvature and extend parallel to one another. The center of curvature of these two branches 1 14 and 1 1 6 is substantially the same. These branches are offset on the one hand radially and on the other hand angularly.
  • the blades 1 14 and 1 1 6 are held in place in a housing 102 by virtue of a core 142 integral with this housing 102.
  • the pusher 108 is pivotally mounted around a point corresponding substantially to the center of curvature of the branches 1 14 and 126.
  • Guide grooves are produced in the interior walls of the housing 102 to allow good guiding of the pusher 108.
  • This pusher has three housings extending substantially radially relative to the pivot center. Two housings are provided for the cables 110 and a third housing 146 is intended to receive the end of a screwdriver blade 148.
  • the pusher 108 also has openings 1 50 intended for the passage of the blades 1 14 and 1 1 6. In the position shown in Figure 6, before connecting the two cables 1 10, the mouths 120 of the blades 1 14 and 1 1 6 are at the entrance of the openings 1 50.
  • These openings 1 50 are substantially perpendicular to the housing intended to receive the cables 1 10. They have a curved shape having for center of curvature substantially the same center of curvature as that of the branches 1 14 and 1 1 6.
  • the width of the openings 1 50 may be such that in the connected position the edges of the stripping slots and retainers are tightened on the conductive core of the cable 1 10.
  • the material of the branches 1 14 and 1 1 6 a material which is very good conductor without having excellent mechanical properties from the point of view elasticity.
  • connection devices which allow an excellent connection of two cables, even if these are of different diameters.
  • the cable of larger diameter does not prevent the connection of a cable of smaller diameter.
  • the two stripping and retaining slots of the same connection device according to the invention can both be provided for the cable connection whose diameter lies within the same predetermined range.
  • the connection of one electric cable has no influence on the connection of the other electric cable.
  • the embodiments described show either a fixed pusher with slots moving in translation or fixed slots with a mobile pusher moving in rotation. It is of course possible to have a mobile pusher moving in translation or mobile blades moving in rotation. Other means for carrying out the displacement of the pusher or of the slots can be envisaged.
  • connection device could allow the connection of three or more cables.
  • connection device comprises as many stripping slots as there are cables to be connected, the stripping slots preferably being all aligned along the same plane and offset in two directions.
  • the slots are arranged in stairs or steps.
  • the device comprises as many receiving housings as there are cables to be connected. Each housing is then adapted to ensure the engagement of the cable which it receives in the corresponding stripping slot. It should be noted that, like the stripping slots, the housings are also arranged in stairs or steps.

Abstract

The invention concerns a device with a conductive core (10a) and an insulating sheath (10b) comprising a stripping and retaining slot (18). It comprises: a second stripping and retaining slot (18) substantially parallel to the first and offset relative to the direction of the slots; a push-member (8) designed to receive two electric cables (10) and configured such that each cable should be located transversely opposite a stripping and retaining slot (18), and means (4) for producing a relative displacement between the push-member (8) and the stripping slots (18).

Description

Dispositif de connexion auto-dénudant pour deux câbles électriques Self-stripping connection device for two electric cables
La présente invention concerne un dispositif de connexion auto- dénudant pour deux câbles électriques.The present invention relates to a self-stripping connection device for two electric cables.
Un dispositif de connexion auto-dénudant permet de connecter un câble électrique sur une pièce conductrice sans qu'il soit nécessaire au préalable de dénuder une extrémité du câble électrique. Le dispositif de connexion auto-dénudant réalise un dénudage local du câble, par exemple en entaillant la gaine isolante qui se trouve autour de l'âme conductrice, avant de réaliser un contact électrique entre l'âme conductrice ainsi localement dénudée et la pièce conductrice.A self-stripping connection device makes it possible to connect an electric cable to a conductive part without it being necessary beforehand to strip one end of the electric cable. The self-stripping connection device performs local stripping of the cable, for example by cutting the insulating sheath which is located around the conductive core, before making electrical contact between the conductive core thus locally stripped and the conductive part.
Les documents EP-0 247 360 ou bien encore FR-2 723 474 révèlent des dispositifs de connexion auto-dénudants. Un dispositif de connexion auto-dénudant comportant deux fentes de dénudage est révélé par le document FR-2 675 953. Ici, les deux fentes de maintien et de dénudage sont alignées et sont destinées à la connexion d'un même fil électrique.The documents EP-0 247 360 or even FR-2 723 474 disclose self-stripping connection devices. A self-stripping connection device comprising two stripping slots is revealed by the document FR-2 675 953. Here, the two holding and stripping slots are aligned and are intended for the connection of the same electric wire.
Les dispositifs de connexion auto-dénudants connus permettent de réaliser la connexion d'un câble électrique d'un diamètre prédéterminé ou dont le diamètre prédéterminé se trouve dans une plage de diamètres prédéterminée assez restreinte. En outre, lorsque les dispositifs de connexion auto-dénudants connus permettent de réaliser la connexion de deux câbles électriques, il faut que ceux-ci soient tous les deux d'un même diamètre.Known self-stripping connection devices make it possible to connect an electric cable with a predetermined diameter or whose predetermined diameter is within a fairly limited predetermined diameter range. In addition, when the known self-stripping connection devices make it possible to connect two electric cables, these must both be of the same diameter.
La présente invention a alors pour but de fournir un dispositif de connexion auto-dénudant permettant de connecter deux câbles de diamètres différents.The present invention therefore aims to provide a self-stripping connection device for connecting two cables of different diameters.
A cet effet, le dispositif qu'elle propose est un dispositif de connexion auto-dénudant pour au moins deux câbles électriques présentant une âme conductrice et une gaine isolante, le dispositif comportant une fente de dénudage et de retenue. Le document EP-0 247 360 révèle par exemple un tel dispositif.To this end, the device which it offers is a self-stripping connection device for at least two electric cables having a conductive core and an insulating sheath, the device comprising a stripping and retaining slot. EP-0 247 360 discloses, for example, such a device.
Selon l'invention, ce dispositif comporte : - au moins une autre dite deuxième fente de dénudage et de retenue ( 1 8), sensiblement parallèle à la première et décalée par rapport à la direction des fentes,According to the invention, this device comprises: - at least one other so-called second stripping and retaining slot (1 8), substantially parallel to the first and offset with respect to the direction of the slots,
- un poussoir destiné à recevoir deux câbles électriques au moins et conformé de telle sorte que chaque câble puisse se trouver transversalement face à une fente de dénudage et de retenue, - des moyens de liaison entre les fentes et le poussoir autorisant un déplacement relatif des fentes et du poussoir et assurant un guidage de ce déplacement, et- a pusher intended to receive at least two electric cables and shaped so that each cable can be transversely facing a stripping and retaining slot, - connecting means between the slots and the pusher allowing relative movement of the slots and of the pusher and guiding this movement, and
- des moyens pour assurer le déplacement relatif entre le poussoir et les fentes de dénudage. Ainsi, deux fentes de dénudage et de retenue permettent de réaliser la connexion chacune d'un câble électrique. La connexion d'un câble n'est donc pas influencée par la connexion de l'autre câble. La connexion de deux câbles de diamètres distincts peut être envisagée.- Means for ensuring the relative movement between the pusher and the stripping slots. Thus, two stripping and retaining slots make it possible to connect each of an electric cable. The connection of one cable is therefore not influenced by the connection of the other cable. The connection of two cables of different diameters can be considered.
Dans une première forme de réalisation d'un dispositif de connexion selon l'invention, les deux fentes de dénudage et de retenue sont réalisées sur une lame repliée en U présentant deux branches parallèles de longueurs différentes, chaque fente débouchant à l'extrémité libre de chaque branche. Les deux fentes de dénudage et de retenue sont alors réalisées sur une même pièce conductrice. Dans cette forme de réalisation, le poussoir comporte par exemple deux parties profilées s'étendant dans le plan contenant les deux fentes, transversalement par rapport aux fentes et des ouvertures sont avantageusement prévues pour le passage de chaque fente et des bords correspondants dans les parties profilées. Dans ce cas, la largeur de chaque ouverture est par exemple telle qu'elle permet le guidage de la pièce portant la fente correspondante et assure un resserrement des bords de la fente en appui sur l'âme métallique d'un câble connecté. Le matériau utilisé pour la lame peut donc être choisi essentiellement pour ses qualités de bon conducteur sans trop tenir compte de ses qualités mécaniques élastiques nécessaires pour assurer un bon appui des bords de la fente sur l'âme métallique conductrice dénudée et par là un bon contact électrique.In a first embodiment of a connection device according to the invention, the two stripping and retaining slots are made on a blade folded in a U having two parallel branches of different lengths, each slot opening at the free end of each branch. The two stripping and retaining slots are then produced on the same conductive part. In this embodiment, the pusher comprises for example two profiled parts extending in the plane containing the two slots, transversely with respect to the slots and openings are advantageously provided for the passage of each slot and of the corresponding edges in the profiled parts . In this case, the width of each opening is for example such that it allows the part carrying the corresponding slot to be guided and ensures that the edges of the slot are tightened in abutment on the metallic core of a connected cable. The material used for the blade can therefore be chosen essentially for its qualities of good conductor without taking much account of its elastic mechanical qualities necessary to ensure good support of the edges of the slot on the bare conductive metallic core and thereby good contact. electric.
On peut prévoir que les fentes sont mobiles par rapport au poussoir mais on peut bien entendu avoir également un poussoir mobile et des fentes fixes. Une autre solution plus compliquée à mettre en oeuvre serait d'avoir à la fois des fentes et un poussoir mobiles.Provision can be made for the slots to be movable relative to the pusher, but it is of course also possible to have a movable pusher and fixed slots. Another more complicated solution to implement would be to have both movable slots and a pusher.
Lorsque les fentes sont mobiles, une vis est par exemple prévue pour assurer le déplacement des fentes, cette vis étant en prise dans une partie métallique reliant les deux fentes et immobile en translation par rapport à un boîtier isolant.When the slots are movable, a screw is for example provided to ensure the displacement of the slots, this screw being engaged in a metal part connecting the two slots and immobile in translation relative to an insulating housing.
Le mouvement relatif entre les fentes et le poussoir est par exemple une translation ou bien un mouvement de pivotement.The relative movement between the slots and the pusher is for example a translation or else a pivoting movement.
Dans le cas où le mouvement relatif entre les fentes et le poussoir est un mouvement de pivotement, on peut prévoir que les fentes sont portées par des lames recourbées parallèles, que le poussoir est monté pivotant et présente deux logements sensiblement transversaux par rapport aux fentes, des ouvertures étant prévues pour le passage des lames portant les fentes.In the case where the relative movement between the slots and the pusher is a pivoting movement, provision may be made for the slots to be carried by parallel curved blades, for the pusher to be pivotally mounted and to have two housings which are substantially transverse to the slots, openings being provided for the passage of the blades carrying the slots.
Une lame de tournevis peut être prévue pour assurer le mouvement de pivotement du poussoir. Un logement destiné à recevoir l'extrémité d'une telle lame est alors avantageusement prévu dans le poussoir.A screwdriver blade can be provided to ensure the pivoting movement of the pusher. A housing intended to receive the end of such a blade is then advantageously provided in the pusher.
La présente invention concerne également un bloc de jonction dans lequel est placé un dispositif de connexion tel que décrit ci-dessus.The present invention also relates to a terminal block in which is placed a connection device as described above.
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé, représentant à titre d'exemples non limitatifs deux formes de réalisation d'un dispositif de connexion auto-dénudant selon l'invention.In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing, representing by way of nonlimiting examples two embodiments of a self-stripping connection device according to the invention. 'invention.
Figure 1 est une vue en perspective montrant le principe d'une première forme de réalisation, avant connexion de deux câbles électriques,FIG. 1 is a perspective view showing the principle of a first embodiment, before connection of two electric cables,
Figure 2 est une vue correspondant à la figure 1 , les câbles étant connectés,FIG. 2 is a view corresponding to FIG. 1, the cables being connected,
Figure 3 est une vue en coupe selon la ligne de coupe lll-lll du dispositif de la figure 1 , ce dernier étant disposé dans un boîtier isolant,FIG. 3 is a sectional view along the section line III-III of the device of FIG. 1, the latter being arranged in an insulating housing,
Figure 4 est une vue en coupe selon la ligne de coupe IV-IV de la figure 3, Figure 5 est une vue correspondant à la vue de la figure 4, les câbles représentés sur la figure 4 étant connectés, etFigure 4 is a sectional view along the section line IV-IV of Figure 3, Figure 5 is a view corresponding to the view of Figure 4, the cables shown in Figure 4 being connected, and
Figure 6 est une vue en coupe longitudinale d'une seconde forme de réalisation d'un dispositif de connexion selon l'invention.Figure 6 is a longitudinal sectional view of a second embodiment of a connection device according to the invention.
Les figures 1 et 2 sont des vues en perspective montrant un principe de connexion selon l'invention tandis que les figures 3 à 5 montrent le dispositif des figures 1 et 2 en place dans un boîtier isolant 2. Sur les figures 1 et 2, on peut voir une vis 4, une lame métallique 6 repliée en U, un poussoir 8 ainsi que deux câbles 10, chaque câble comportant une âme conductrice 10a et une gaine isolante 10b.Figures 1 and 2 are perspective views showing a connection principle according to the invention while Figures 3 to 5 show the device of Figures 1 and 2 in place in an insulating housing 2. In Figures 1 and 2, we can see a screw 4, a metal blade 6 folded into a U, a pusher 8 and two cables 10, each cable having a conductive core 10a and an insulating sheath 10b.
La lame métallique 6 présente une base 1 2 à laquelle sont rattachées deux branches parallèles 14 et 1 6. On considérera dans la suite de la description que la base 12 de la lame 6 se situe dans un plan horizontal tandis que les branches 14 et 1 6 s'étendent dans un plan vertical.The metal blade 6 has a base 1 2 to which are attached two parallel branches 14 and 1 6. It will be considered in the following description that the base 12 of the blade 6 is located in a horizontal plane while the branches 14 and 1 6 extend in a vertical plane.
Chaque branche 14, 1 6 comporte une fente 1 8 de dénudage et de retenue qui est ici rectiligne et parallèle à l'axe longitudinal de la branche 14, 1 6 correspondante. Chaque fente 1 8 s'étend donc verticalement. La lame 6 est par exemple obtenue à partir d'un flanc plan par matriçage entraînant une découpe, puis pliage avec éventuellement réalisation d'amincissements localisés. Chaque fente de dénudage et de retenue 1 8 présente à une extrémité, l'extrémité correspondant à l'extrémité libre de la branche 14, 1 6 correspondante, une embouchure dénudante 20. Cette dernière est obtenue par découpe oblique symétrique des bords de la fente 1 8. Cette découpe oblique permet d'obtenir une embouchure évasée dont les bords forment une arête permettant d'entamer la gaine 10b d'un câble électrique 10 poussé dans l'embouchure 20.Each branch 14, 1 6 has a stripping and retaining slot 1 8 which is here rectilinear and parallel to the longitudinal axis of the corresponding branch 14, 1 6. Each slot 1 8 therefore extends vertically. The blade 6 is for example obtained from a flat flank by stamping resulting in cutting, then folding with possibly localized thinning. Each stripping and retaining slot 1 8 has at one end, the end corresponding to the free end of the branch 14, 1 6 corresponding, a stripping mouth 20. The latter is obtained by symmetrical oblique cutting of the edges of the slot 1 8. This oblique cut makes it possible to obtain a flared mouth, the edges of which form an edge making it possible to start the sheath 10b of an electric cable 10 pushed into the mouth 20.
La lame 6 est par exemple réalisée en cuivre ou bien dans un alliage cuivreux à forte proportion de cuivre. Ainsi, lorsqu'un câble 10 a été engagé dans la fente 1 8 et que sa gaine 10b a été entamée au niveau de l'embouchure 20, l'âme conductrice 10a de ce câble est en contact électrique avec les bords de la fente 1 8. Le matériau constitutif de la lame permet alors une excellente conduction du courant passant dans le câble électrique.The blade 6 is for example made of copper or else of a copper alloy with a high proportion of copper. Thus, when a cable 10 has been engaged in the slot 1 8 and its sheath 10b has been started at the mouth 20, the conductive core 10a of this cable is in electrical contact with the edges of the slot 1 8. The material constituting the blade then allows excellent conduction of the current passing through the electric cable.
Les branches 14 et 1 6 présentent une longueur différente. Au dessin la branche 14 est la plus courte. Les deux fentes 1 8 sont sensiblement identiques. Ces deux fentes se trouvent donc décalées en hauteur et espacées l'une de l'autre d'une distance de l'ordre de quelques millimètres, voire quelques dizaines de millimètres. Sur la figure 1 , on a représenté un repère orthogonal X, Y, Z, l'axe Z définissant la verticale et les axes X et Y un plan horizontal. On suppose que les câbles 10 s'étendent parallèlement à la direction Y. Les fentes de dénudage et de retenue 1 8 sont alors décalées l'une par rapport à l'autre d'une part selon l'axe Y et d'autre part selon l'axe Z. Ainsi, les fentes de dénudage se trouvent disposées en escaliers ou gradins.The branches 14 and 1 6 have a different length. In the drawing, branch 14 is the shortest. The two slots 1 8 are substantially identical. These two slots are therefore offset in height and spaced from each other by a distance of the order of a few millimeters, or even a few tens of millimeters. In FIG. 1, an orthogonal coordinate system X, Y, Z has been represented, the Z axis defining the vertical and the X and Y axes a horizontal plane. It is assumed that the cables 10 extend parallel to the direction Y. The stripping and retainer 1 8 are then offset relative to each other on the one hand along the Y axis and on the other hand along the Z axis. Thus, the stripping slots are arranged in stairs or steps.
La base 1 2 de la lame 6 présente un taraudage destiné à coopérer avec la partie filetée 22 de la vis 4.The base 12 of the blade 6 has a thread intended to cooperate with the threaded part 22 of the screw 4.
Le poussoir 8 présente deux pièces profilées 24 et 26, la pièce profilée 24 étant disposée au-dessus de la pièce profilée 26.The pusher 8 has two profiled parts 24 and 26, the profiled part 24 being arranged above the profiled part 26.
Les deux pièces profilées 24, 26 s'étendent sensiblement selon l'axe Y. Il s'agit de pièces profilées ouvertes, le côté ouvert du profilé étant orienté vers le haut, c'est-à-dire vers la lame 6.The two profiled parts 24, 26 extend substantially along the axis Y. They are open profiled parts, the open side of the profile being oriented upwards, that is to say towards the blade 6.
La pièce profilée supérieure 24 est disposée, par rapport à la lame 6, de telle sorte qu'elle soit traversée par la branche 1 6 mais non par la branche 14. Une ouverture 28 est prévue pour laisser le passage à la branche 1 6. De même, on trouve au niveau du profilé 24 une ouverture 30 prévue pour permettre le passage de la branche 14 et une ouverture 32 réalisée dans le profilé 26 et destinée à recevoir la branche 1 6.The upper profiled part 24 is arranged, relative to the blade 6, so that it is crossed by the branch 1 6 but not by the branch 14. An opening 28 is provided to allow passage to the branch 1 6. Similarly, there is at the level of the section 24 an opening 30 provided to allow the passage of the branch 14 and an opening 32 produced in the section 26 and intended to receive the branch 1 6.
Les pièces profilées 24 et 26 se présentent ainsi sous la forme d'une gouttière s'étendant horizontalement, transversalement aux branches 14 et 1 6 et servent de logement pour des câbles 10 à connecter. Les deux pièces profilées 24, 26 sont par exemple réalisées en acier. Elles peuvent être reliées l'une à l'autre ou être indépendantes. En fait, il est prévu de déplacer la lame 6 par rapport au poussoir 8. Ce déplacement se fait selon la direction Z, c'est-à-dire la direction donnée par les fentes 1 8. Si la lame 6 se déplace, les pièces profilées 24 et 26 sont par exemple indépendantes l'une de l'autre tandis que si le poussoir 8 se déplace vers la lame 6, il se préférable d'avoir deux pièces profilées solidaires l'une de l'autre.The profiled parts 24 and 26 are thus in the form of a gutter extending horizontally, transversely to the branches 14 and 1 6 and serve as a housing for cables 10 to be connected. The two profiled parts 24, 26 are for example made of steel. They can be linked to each other or be independent. In fact, it is planned to move the blade 6 relative to the pusher 8. This movement is done in the direction Z, that is to say the direction given by the slots 1 8. If the blade 6 moves, the profiled parts 24 and 26 are for example independent of one another while if the pusher 8 moves towards the blade 6, it is preferable to have two profiled parts integral with one another.
Pour réaliser une connexion de deux câbles 10, on introduit dans chaque logement formé par les pièces profilées 24 et 26 un câble 10 à connecter. Le câble 10 placé dans la pièce profilée supérieure 24 est poussé en direction de l'axe Y jusqu'à ce qu'il vienne en butée contre la branche 1 6. Le câble disposé dans le logement inférieur de la pièce profilée 26 est associé à une butée non représentée au dessin. Cette butée est par exemple réalisée dans le boîtier isolant 2.To make a connection of two cables 10, a cable 10 to be connected is introduced into each housing formed by the profiled parts 24 and 26. The cable 10 placed in the upper profiled part 24 is pushed in the direction of the axis Y until it comes into abutment against the branch 1 6. The cable placed in the lower housing of the profiled part 26 is associated with a stop not shown in the drawing. This stop is for example made in the insulating housing 2.
Pour déplacer la lame 6 et faire descendre les fentes 18 vers les câbles 10, on agit sur la vis 4. Chaque câble vient alors au contact d'une embouchure 20 qui découpe la gaine isolante 1 0b du câble correspondant. En continuant d'agir sur la vis 4, chaque câble 10 est dénudé et son âme conductrice 10a est introduite entre les bords parallèles de la fente 18. Un contact électrique est alors réalisé entre l'âme conductrice 10a et la lame 6. Pour garantir un bon contact électrique entre les bords de la fente de la branche 14 et du câble 10 supérieur et les bords de la fente de la branche 1 6 et du câble électrique inférieur, les ouvertures 30 et 32 respectivement destinées à recevoir ces branches 14 et 1 6 respectivement sont dimensionnées de telle sorte que les bords des fentes 1 8 sont à chaque fois resserrés vers l'âme conductrice 10a du câble correspondant dans le cas de gros conducteurs. Dans le cas de petits conducteurs, l'élasticité des branches 14 et 1 6 est suffisante pour assurer le contact. Ainsi, les branches renforcées par les ouvertures acceptent une plage de raccordement plus étendue. Sur les figures 3 à 5, on peut voir le dispositif des figures 1 à 2 en place dans le boîtier isolant 2. La figure 3 montre comment le boîtier isolant maintient la vis 4 et la lame 6 en position.To move the blade 6 and bring the slots 18 down to the cables 10, the screw 4 is acted on. Each cable then comes into contact with a mouth 20 which cuts the insulating sheath 10b of the corresponding cable. By continuing to act on the screw 4, each cable 10 is stripped and its conductive core 10a is introduced between the parallel edges of the slot 18. An electrical contact is then made between the conductive core 10a and the blade 6. To guarantee good electrical contact between the edges of the slot of the branch 14 and of the upper cable 10 and the edges of the slot of the branch 1 6 and of the lower electrical cable, the openings 30 and 32 respectively intended to receive these branches 14 and 1 6 respectively are dimensioned so that the edges of the slots 1 8 are each time tightened towards the conductive core 10a of the corresponding cable in the case of large conductors. In the case of small conductors, the elasticity of the branches 14 and 1 6 is sufficient to ensure contact. Thus, the branches reinforced by the openings accept a wider connection range. In Figures 3 to 5, we can see the device of Figures 1 to 2 in place in the insulating housing 2. Figure 3 shows how the insulating housing holds the screw 4 and the blade 6 in position.
La vis 4 présente une tête 36 à la périphérie de laquelle se trouve une nervure annulaire 38. Cette dernière est placée dans une rainure 40 de taille et de forme adaptées pour la recevoir. Ainsi, lorsqu'un tournevis agit sur la tête de vis 36 pour entraîner la vis 4 en rotation, celle- ci n'est pas déplacée en translation de manière à provoquer la translation de la lame 6. Un noyau de matière synthétique 42 est prévu entre les branches 14 et 1 6 de manière à assurer un parfait guidage de ces branches lors de leur mouvement de translation. Tout phénomène de flambage peut ainsi être évité lors du dénudage d'un câble et de sa connection électrique. Le noyau 42 peut également servir d'appui pour l'extrémité de la vis 4 opposée à sa tête 36.The screw 4 has a head 36 at the periphery of which is an annular rib 38. The latter is placed in a groove 40 of size and shape adapted to receive it. Thus, when a screwdriver acts on the screw head 36 to drive the screw 4 in rotation, it is not moved in translation so as to cause the translation of the blade 6. A core of synthetic material 42 is provided between the branches 14 and 1 6 so as to ensure perfect guidance of these branches during their translational movement. Any buckling phenomenon can thus be avoided during the stripping of a cable and its electrical connection. The core 42 can also serve as a support for the end of the screw 4 opposite its head 36.
Sur les figures 4 et 5, la lame 6 est représentée en position haute et en position basse. Des butées 44 sont prévues dans le boîtier pour permettre l'indexage de la position haute et de la position basse de la lame 6.In Figures 4 and 5, the blade 6 is shown in the high position and in the low position. Stops 44 are provided in the housing to allow indexing of the high position and the low position of the blade 6.
Pour extraire un conducteur 10 raccordé dans un dispositif tel que décrit ci-dessus, la vis 4 est dévissée. Ainsi, la lame 6 remonte en entraînant avec elle les câbles conducteurs 10. Le câble 10 supérieur arrive en butée sur l'isolant du boîtier 2 (figure 3) et le câble 10 inférieur sur la partie profilée 24. En poursuivant le dévissage, la lame 6 poursuit sa remontée et le dévêtissage des câbles 10 est réalisé.To extract a conductor 10 connected in a device as described above, the screw 4 is unscrewed. Thus, the blade 6 rises, carrying with it the conducting cables 10. The upper cable 10 comes into abutment on the insulation of the housing 2 (FIG. 3) and the lower cable 10 on the profiled part 24. By continuing the unscrewing, the blade 6 continues its ascent and the stripping of the cables 10 is carried out.
La figure 6 montre une variante de réalisation d'un dispositif de connexion selon l'invention. Sur cette figure, les pièces ayant une fonction similaire à celle de pièces des figures 1 à 5 reprennent les mêmes références que ces pièces mais sont augmentées du nombre 100.Figure 6 shows an alternative embodiment of a connection device according to the invention. In this figure, the parts having a function similar to that of parts of FIGS. 1 to 5 use the same references as these parts but are increased by the number 100.
On retrouve dans cette forme de réalisation un poussoir 108, deux câbles 1 10, deux branches 1 14 et 1 1 6 dans chacune desquelles est réalisée une fente non représentée et terminées par une embouchure dénudante 1 20.We find in this embodiment a pusher 108, two cables 1 10, two branches 1 14 and 1 1 6 in each of which is made a slot not shown and terminated by a stripped mouth 1 20.
Les branches 1 14 et 1 16 sont les extrémités repliées et incurvées d'une lame métallique conductrice. Ces branches 1 14 et 1 1 6 présentent un rayon de courbure et s'étendent parallèlement l'une à l'autre. Le centre de courbure de ces deux branches 1 14 et 1 1 6 est sensiblement le même. Ces branches sont décalées d'une part radialement et d'autre part angulairement. Les lames 1 14 et 1 1 6 sont maintenues en place dans un boîtier 102 grâce à un noyau 142 solidaire de ce boîtier 102.The branches 1 14 and 1 16 are the folded and curved ends of a conductive metal strip. These branches 1 14 and 1 1 6 have a radius of curvature and extend parallel to one another. The center of curvature of these two branches 1 14 and 1 1 6 is substantially the same. These branches are offset on the one hand radially and on the other hand angularly. The blades 1 14 and 1 1 6 are held in place in a housing 102 by virtue of a core 142 integral with this housing 102.
Le poussoir 108 est monté pivotant autour d'un point correspondant sensiblement au centre de courbure des branches 1 14 et 126. Des rainures de guidage non représentées sont réalisées dans les parois intérieures du boîtier 102 pour permettre de réaliser un bon guidage du poussoir 108.The pusher 108 is pivotally mounted around a point corresponding substantially to the center of curvature of the branches 1 14 and 126. Guide grooves, not shown, are produced in the interior walls of the housing 102 to allow good guiding of the pusher 108.
Ce poussoir présente trois logements s'étendant sensiblement radialement par rapport au centre de pivotement. Deux logements sont prévus pour les câbles 1 10 et un troisième logement 146 est destiné à recevoir l'extrémité d'une lame de tournevis 148. Le poussoir 108 présente également des ouvertures 1 50 destinées au passage des lames 1 14 et 1 1 6. Dans la position représentée sur la figure 6, avant la connexion des deux câbles 1 10, les embouchures 120 des lames 1 14 et 1 1 6 se trouvent à l'entrée des ouvertures 1 50. Ces ouvertures 1 50 sont sensiblement perpendiculaires au logement destiné à recevoir les câbles 1 10. Elles présentent une forme incurvée ayant pour centre de courbure sensiblement le même centre de courbure que celui des branches 1 14 et 1 1 6.This pusher has three housings extending substantially radially relative to the pivot center. Two housings are provided for the cables 110 and a third housing 146 is intended to receive the end of a screwdriver blade 148. The pusher 108 also has openings 1 50 intended for the passage of the blades 1 14 and 1 1 6. In the position shown in Figure 6, before connecting the two cables 1 10, the mouths 120 of the blades 1 14 and 1 1 6 are at the entrance of the openings 1 50. These openings 1 50 are substantially perpendicular to the housing intended to receive the cables 1 10. They have a curved shape having for center of curvature substantially the same center of curvature as that of the branches 1 14 and 1 1 6.
Pour réaliser la connexion de deux câbles 1 10, ceux-ci sont introduits dans les logements prévus à cet effet dans le poussoir 108. Un premier câble 1 10 vient en butée contre la branche 1 1 6 tandis que le logement prévu pour l'autre câble 1 10 est borgne. L'extrémité de la lame de tournevis 148 est alors introduite dans le logement 146. Une ouverture 1 52 réalisée dans le boîtier 102 permet l'introduction dans leur logement respectif des câbles 1 10 et la lame de tournevis 148. En faisant alors pivoter le poussoir 108 à l'aide de la lame de tournevis 148 vers les branches 1 14 et 1 1 6, les câbles 1 10 sont alors dénudés et maintenus dans les fentes de dénudage et de retenue de ces lames. On réalise ainsi la connexion des deux câbles 1 1 0.To make the connection of two cables 1 10, these are introduced into the housings provided for this purpose in the pusher 108. A first cable 1 10 abuts against the branch 1 1 6 while the housing for the other cable 1 10 is blind. The end of the screwdriver blade 148 is then introduced into the housing 146. An opening 1 52 made in the housing 102 allows the insertion into their respective housing of the cables 1 10 and the screwdriver blade 148. By then pivoting the pusher 108 using the screwdriver blade 148 towards the branches 1 14 and 1 1 6, the cables 1 10 are then stripped and held in the stripping and retaining slots of these blades. This makes the connection of the two cables 1 1 0.
Pour garantir un bon contact électrique entre les branches 1 14 et 1 1 6 et l'âme conductrice des câbles 1 1 0, on peut prévoir que la largeur des ouvertures 1 50 est telle qu'en position connectée les bords des fentes de dénudage et de retenue sont resserrés sur l'âme conductrice du câble 1 10. On peut alors utiliser pour le matériau constitutif des branches 1 14 et 1 1 6 un matériau qui soit très bon conducteur sans pour autant présenter d'excellentes qualités mécaniques du point de vue de l'élasticité.To ensure good electrical contact between the branches 1 14 and 1 1 6 and the conductive core of the cables 1 1 0, provision may be made for the width of the openings 1 50 to be such that in the connected position the edges of the stripping slots and retainers are tightened on the conductive core of the cable 1 10. We can then use for the material of the branches 1 14 and 1 1 6 a material which is very good conductor without having excellent mechanical properties from the point of view elasticity.
Dans cette forme de réalisation, par rapport à celle montrée sur les figures 1 à 5, on a un poussoir mobile et des fentes de dénudage et de retenue immobiles. En outre, le mouvement relatif entre le poussoir et les fentes n'est pas un mouvement de translation mais un mouvement de rotation. Ici, les deux fentes de dénudage et de retenue ne sont pas réalisées sur une même lame mais sur deux lames distinctes qui sont en contact électrique l'une avec l'autre.In this embodiment, compared to that shown in Figures 1 to 5, there is a movable pusher and stationary stripping and retaining slots. In addition, the relative movement between the pusher and the slots is not a translational movement but a rotational movement. Here, the two stripping and retaining slots are not produced on the same blade but on two separate blades which are in electrical contact with each other.
Les formes de réalisation décrites ci-dessus et représentées au dessin montrent des dispositifs de connexion qui permettent une excellente connexion de deux câbles, même si ceux-ci sont de diamètres différents.The embodiments described above and shown in the drawing show connection devices which allow an excellent connection of two cables, even if these are of different diameters.
En effet, étant donné que les deux câbles sont connectés sur des fentes de dénudage et de retenue distinctes, le câble de plus grand diamètre ne vient pas empêcher la connexion d'un câble de diamètre inférieur. Les deux fentes de dénudage et de retenue d'un même dispositif de connexion selon l'invention peuvent être prévues toutes deux pour la connexion de câble dont le diamètre se trouve dans une même plage prédéterminée. Toutefois, on peut prévoir une fente de dénudage et de retenue destinée à recevoir des câbles de diamètres importants et une fente de dénudage et de retenue destinée à des câbles de diamètres moins importants. Dans tous les cas, la connexion d'un câble électrique est sans influence sur la connexion de l'autre câble électrique. Comme il va de soi, l'invention ne se limite pas aux formes de réalisation décrites ci-dessus à titre d'exemples non limitatifs ; elle en embrasse au contraire toutes les variantes de réalisation dans le cadre des revendications ci-après. Ainsi, les exemples de réalisation décrits montrent soit un poussoir fixe avec des fentes se déplaçant en translation soit des fentes fixes avec un poussoir mobile se déplaçant en rotation. On peut bien entendu avoir un poussoir mobile se déplaçant en translation ou des lames mobiles se déplaçant en rotation. D'autres moyens pour réaliser le déplacement du poussoir ou des fentes peuvent être envisagés. On peut par exemple imaginer une lame ou un poussoir dépassant du boîtier et destiné à être déplacé par action directe d'un doigt d'un opérateur.In fact, since the two cables are connected to separate stripping and retaining slots, the cable of larger diameter does not prevent the connection of a cable of smaller diameter. The two stripping and retaining slots of the same connection device according to the invention can both be provided for the cable connection whose diameter lies within the same predetermined range. However, one can provide a stripping and retaining slot intended to receive cables of large diameters and a stripping and retaining slot intended for cables of smaller diameters. In all cases, the connection of one electric cable has no influence on the connection of the other electric cable. It goes without saying that the invention is not limited to the embodiments described above by way of nonlimiting examples; on the contrary, it embraces all of the variant embodiments thereof within the scope of the claims below. Thus, the embodiments described show either a fixed pusher with slots moving in translation or fixed slots with a mobile pusher moving in rotation. It is of course possible to have a mobile pusher moving in translation or mobile blades moving in rotation. Other means for carrying out the displacement of the pusher or of the slots can be envisaged. One can for example imagine a blade or a pusher projecting from the housing and intended to be moved by direct action of a finger of an operator.
De même, dans les exemples décrits ci-dessus, les dispositions selon l'invention permettent la connexion de deux câbles. Toutefois, conformément à l'invention, un dispositif de connexion pourrait permettre le raccord de trois câbles ou plus.Likewise, in the examples described above, the arrangements according to the invention allow the connection of two cables. However, according to the invention, a connection device could allow the connection of three or more cables.
A cet effet, le dispositif de connexion comprend autant de fentes de dénudage que de câbles à raccorder, les fentes de dénudage étant de préférence toutes alignées selon un même plan et décalées selon deux directions. Ainsi, les fentes sont disposées en escaliers ou gradins. De plus, le dispositif comprend autant de logements de réception que de câbles à connecter. Chaque logement est alors adapté pour assurer l'engagement du câble qu'il reçoit dans la fente de dénudage correspondante. Il doit être noté que, comme les fentes de dénudage, les logements sont également disposés en escaliers ou gradins. To this end, the connection device comprises as many stripping slots as there are cables to be connected, the stripping slots preferably being all aligned along the same plane and offset in two directions. Thus, the slots are arranged in stairs or steps. In addition, the device comprises as many receiving housings as there are cables to be connected. Each housing is then adapted to ensure the engagement of the cable which it receives in the corresponding stripping slot. It should be noted that, like the stripping slots, the housings are also arranged in stairs or steps.

Claims

REVENDICATIONS
1 . Dispositif de connexion auto-dénudant pour au moins deux câbles électriques ( 10; 1 10) présentant une âme conductrice ( 10a) et une gaine isolante ( 10b), le dispositif comportant une fente de dénudage et de retenue (18), caractérisé en ce qu'il comporte :1. Self-stripping connection device for at least two electric cables (10; 1 10) having a conductive core (10a) and an insulating sheath (10b), the device comprising a stripping and retaining slot (18), characterized in that that it includes:
- au moins une autre dite deuxième fente de dénudage et de retenue (1 8), sensiblement parallèle à la première et décalée par rapport à la direction des fentes,- at least one other so-called second stripping and retaining slot (18), substantially parallel to the first and offset with respect to the direction of the slots,
- un poussoir (8; 108) destiné à recevoir deux câbles électriques ( 10; 1 10) au moins et conformé de telle sorte que chaque câble puisse se trouver transversalement face à une fente de dénudage et de retenue (18), - des moyens (2, 102) de liaison entre les fentes (1 8) et le poussoir (8, 108) autorisant un déplacement relatif des fentes et du poussoir et assurant un guidage de ce déplacement, et- a pusher (8; 108) intended to receive at least two electric cables (10; 1 10) and shaped so that each cable can be transversely facing a stripping and retaining slot (18), - means (2, 102) of connection between the slots (1 8) and the pusher (8, 108) authorizing a relative movement of the slots and of the pusher and ensuring guidance of this movement, and
- des moyens (4; 108, 146) pour assurer le déplacement relatif entre le poussoir (8; 108) et les fentes de dénudage ( 1 8) . - Means (4; 108, 146) for ensuring the relative movement between the pusher (8; 108) and the stripping slots (1 8).
2. Dispositif de connexion selon la revendication 1 , caractérisé en ce que les deux fentes de dénudage et de retenue (1 8) sont réalisées sur une lame (6) repliée en U présentant deux branches ( 14, 1 6) parallèles de longueurs différentes, chaque fente (18) débouchant à l'extrémité libre de chaque branche. 2. Connection device according to claim 1, characterized in that the two stripping and retaining slots (1 8) are formed on a blade (6) folded in a U having two branches (14, 1 6) parallel with different lengths , each slot (18) opening at the free end of each branch.
3. Dispositif de connexion selon l'une des revendications 1 ou3. Connection device according to one of claims 1 or
2, caractérisé en ce que le poussoir (8) comporte deux parties profilées (24;26) s'étendant dans le plan contenant les deux fentes (18), transversalement par rapport aux fentes et en ce que des ouvertures (30,32) sont prévues pour le passage de chaque fente et des bords correspondants dans les parties profilées.2, characterized in that the pusher (8) has two profiled parts (24; 26) extending in the plane containing the two slots (18), transversely with respect to the slots and in that openings (30,32) are provided for the passage of each slot and the corresponding edges in the profiled parts.
4. Dispositif de connexion selon la revendication 3, caractérisé en ce que la largeur de chaque ouverture (30,32) est telle qu'elle permet le guidage de la pièce portant la fente correspondante et assure un resserrement des bords de la fente en appui sur l'âme métallique (10a) d'un câble connecté.4. Connection device according to claim 3, characterized in that the width of each opening (30,32) is such that it allows the guide of the part carrying the corresponding slot and ensures a tightening of the edges of the bearing slot on the metallic core (10a) of a connected cable.
5. Dispositif de connexion selon l'une des revendications 1 à 4, caractérisé en ce que les fentes ( 1 8) sont mobiles par rapport au poussoir (8).5. Connection device according to one of claims 1 to 4, characterized in that the slots (1 8) are movable relative to the pusher (8).
6. Dispositif de connexion selon la revendication 5, caractérisé en ce qu'une vis (4) est prévue pour assurer le déplacement des fentes (18), cette vis étant en prise dans une partie métallique ( 1 2) reliant les deux fentes et immobile en translation par rapport à un boîtier isolant (2).6. Connection device according to claim 5, characterized in that a screw (4) is provided to move the slots (18), this screw being engaged in a metal part (1 2) connecting the two slots and stationary in translation relative to an insulating housing (2).
7. Dispositif de connexion selon la revendication 1 , caractérisé en ce que le mouvement relatif entre les fentes et le poussoir ( 108) est un mouvement de pivotement. 7. Connection device according to claim 1, characterized in that the relative movement between the slots and the pusher (108) is a pivoting movement.
8. Dispositif de connexion selon la revendication 7, caractérisé en ce que les fentes sont portées par des lames recourbées (1 14; 1 1 6) parallèles, en ce que le poussoir (108) est monté pivotant et présente deux logements sensiblement transversaux par rapport aux fentes, des ouvertures ( 1 50) étant prévues pour le passage des lames ( 1 14; 1 1 6) portant les fentes.8. Connection device according to claim 7, characterized in that the slots are carried by curved blades (1 14; 1 1 6) parallel, in that the pusher (108) is pivotally mounted and has two substantially transverse housings by relative to the slots, openings (1 50) being provided for the passage of the blades (1 14; 1 1 6) carrying the slots.
9. Dispositif de connexion selon l'une des revendications 7 ou 8, caractérisé en ce qu'un logement ( 146) destiné à recevoir l'extrémité d'une lame de tournevis ( 148) est prévu dans le poussoir ( 108).9. Connection device according to one of claims 7 or 8, characterized in that a housing (146) intended to receive the end of a screwdriver blade (148) is provided in the pusher (108).
10. Bloc de jonction selon la revendication 9, caractérisé en ce qu'il comporte au moins un dispositif de connexion selon l'une des revendication 1 à 9. 10. Terminal block according to claim 9, characterized in that it comprises at least one connection device according to one of claims 1 to 9.
EP01907711A 2000-02-07 2001-02-06 Self-stripping connecting device for two electric cables Withdrawn EP1166394A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0001499A FR2804797B1 (en) 2000-02-07 2000-02-07 SELF-STRIPPING CONNECTION DEVICE FOR TWO ELECTRIC CABLES
FR0001499 2000-02-07
PCT/FR2001/000345 WO2001057957A1 (en) 2000-02-07 2001-02-06 Self-stripping connecting device for two electric cables

Publications (1)

Publication Number Publication Date
EP1166394A1 true EP1166394A1 (en) 2002-01-02

Family

ID=8846728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01907711A Withdrawn EP1166394A1 (en) 2000-02-07 2001-02-06 Self-stripping connecting device for two electric cables

Country Status (4)

Country Link
US (1) US6604956B2 (en)
EP (1) EP1166394A1 (en)
FR (1) FR2804797B1 (en)
WO (1) WO2001057957A1 (en)

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Also Published As

Publication number Publication date
FR2804797B1 (en) 2004-07-02
WO2001057957A1 (en) 2001-08-09
FR2804797A1 (en) 2001-08-10
US6604956B2 (en) 2003-08-12
US20020155759A1 (en) 2002-10-24

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