WO2006000681A1 - Tool for stripping insulated electric conductor and a self-stripping terminal comprising said tool - Google Patents

Tool for stripping insulated electric conductor and a self-stripping terminal comprising said tool Download PDF

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Publication number
WO2006000681A1
WO2006000681A1 PCT/FR2005/001325 FR2005001325W WO2006000681A1 WO 2006000681 A1 WO2006000681 A1 WO 2006000681A1 FR 2005001325 W FR2005001325 W FR 2005001325W WO 2006000681 A1 WO2006000681 A1 WO 2006000681A1
Authority
WO
WIPO (PCT)
Prior art keywords
stripping
electrical conductor
cutting
accessory
accessory according
Prior art date
Application number
PCT/FR2005/001325
Other languages
French (fr)
Inventor
Marcel Daccord
Jean-Sébastien Guibert
Philippe Mondary
Original Assignee
Legrand France
Legrand Snc
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 Legrand France, Legrand Snc filed Critical Legrand France
Priority to EP05773028A priority Critical patent/EP1751827B1/en
Priority to DE602005002480T priority patent/DE602005002480T2/en
Publication of WO2006000681A1 publication Critical patent/WO2006000681A1/en

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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
    • H01R4/2491—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by conductive cams or wedges

Definitions

  • the present invention relates generally to self-stripping connectors. It relates more particularly to a stripping accessory of at least one insulated electrical conductor with a conductive core and insulating sheath comprising, on the one hand, means for cutting the insulating sheath over a certain length in a direction substantially parallel to the axis. said conductor, and, secondly, means for separating and discharging outside said accessory of said insulated sheath cut from each electrical conductor.
  • the invention finds a particularly advantageous application in the equipment of a so-called self-stripping connection terminal, whether it is a connection terminal intended to act in isolation, for example for the connection of an electrical conductor to another, or that it is a connection terminal which, being an integral part of the housing of any electrical equipment, or duly attached to this housing, is intended for the connection, to this apparatus, of a electrical conductors necessary for its service.
  • the means for stripping an electrical conductor in the self-stripping connection terminals already known, are means for tearing, drilling or cutting the insulating sheath of the electrical conductor, in a direction substantially perpendicular or parallel to the axis of said driver.
  • It may be a slot whose bottom forms a receiving housing of the conducting core of the conductor and provided with cutting lips extending perpendicularly to the axis of said conductor.
  • This slot is secured to a cover adapted to close a receiving housing.
  • the electrical conductor is housed partially in said receiving housing, then the cover is folded down thereon so that the slot straddles said electrical conductor.
  • the electrical conductor is then introduced into the slot, in a direction of introduction parallel to said cutting lips, and these cut and locally move the insulating sheath of said conductor in a direction perpendicular to the axis of the latter, so that a portion of its conductive core is housed in the bottom of said slot and makes electrical contact with the terminal.
  • It may be a metal tip that pierces the insulating sheath of the electrical conductor placed in a receiving housing, the drilling being carried out in a direction perpendicular to the axis of said conductor, so as to come into contact with the conductive core of said conductor for making the electrical connection.
  • the main disadvantage of the above-mentioned insulating or drilling displacement means lies in the fact that they do not make it possible to achieve a clear separation of the insulating sheath with respect to the conductive core of the electrical conductor, and it may then remain , after stripping of the electrical conductor introduced into a connection terminal equipped with such stripping means, one or more chips (x) of insulating sheath between the conductor core of said conductor and the metal part of electrical connection of said terminal, the chips causing poor electrical contact between the conductor and said connection terminal.
  • the introduction and stripping of the electrical conductor in the aforementioned connection terminals require two separate actions of the installer, which is relatively complex and can take a significant time.
  • This terminal consists of several assembled parts. It comprises a first part pierced with a cylindrical conduit of revolution forming the insertion opening of the insulated electrical conductor in which said knives extend and opening onto a frustoconical outlet whose oblique wall forms one of the oblique walls of each duct. 'evacuation. It furthermore comprises a second part provided with a frustoconical mouthpiece whose oblique wall forms the other of the oblique walls of each discharge duct, followed by a cylindrical duct forming the housing for receiving the stripped conductive core of the conductor. electric.
  • first and second parts are perfectly aligned so that the stripping operation is performed correctly, which implies a complex realization of said terminal.
  • the portion of insulating sheath cut from the electrical conductor inserted in said terminal is not evacuated correctly by the conduits of evacuation but it is introduced into the receiving housing of the conductive core by causing a fault electrical contact between the electrical conductor and the metal contact member of the terminal.
  • the knives are fixed rigidly to the body of the terminal.
  • the present invention proposes a new stripping accessory as defined in the introduction, characterized in that the cutting means and the separation and evacuation means belong to the same single piece of so that there is perfect continuity between them.
  • the stripping accessory comprises downstream of said means for separating and discharging the downstream guide means of the stripped conductive core which belong to said monoblock part to which belong said cutting means and said separation and evacuation means;
  • said cutting means comprise, for each electrical conductor, at least one cutting lip extending substantially parallel to the axis of the electrical conductor;
  • the cutting means comprise two cutting lips disposed substantially in V between which is defined an introduction slot of the electrical conductor;
  • said separation and evacuation means are arranged in such a way that the separation and evacuation of the cut insulating sheath take place on either side of the axis of said electrical conductor;
  • said separation and evacuation means comprise, for each electrical conductor, two ramps extending generally obliquely with respect to the direction of insertion of each electrical conductor into said accessory, said ramps being divergent with respect to the other ;
  • It consists of a cut and folded thin metal part comprising, for each slot, a branch formed by one of the cutting lips and one of the ramps
  • the invention also relates to an electrical connection terminal which comprises downstream of a metal electrical contact member a stripping accessory according to the invention.
  • DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT The following description with reference to the accompanying drawings, given by way of non-limiting examples, will make it clear what the invention consists of and how it can be implemented.
  • - Figure 1 is a rear perspective view of a first embodiment of the stripping accessory according to the invention
  • - Figure 2 is a front perspective view of the stripping accessory of Figure 1
  • FIG. 3 is a side perspective view of the stripping accessory of FIG. 1;
  • FIG. 4 is a front perspective view of a second embodiment of the stripping accessory according to the invention
  • - Figure 5 is a rear perspective view of the stripping accessory of Figure 4
  • FIG. 6 is a front view of FIG. 7
  • - Figure 7 is a rear perspective view of the stripping accessory of Figure 4 on which are reported said guide means of Figure 6
  • - Figure 8 is a rear perspective view of the guide means of the electrical conductors to report on the stripping accessory of Figure 4
  • FIG. 9 is an exploded perspective view from behind of electrical equipment showing its connection terminals to which the stripping accessory of FIG. 7 is attached.
  • FIGS. 1 to 5 show two embodiments of a stripping accessory 100 of at least one insulated electrical conductor 10. This is in practice a rather rigid electrical conductor with a conductive core 11 and sheath 12. Of course, it can introduce in this stripping accessory 100 any type of insulated electrical conductor, flexible or rigid, single-strand or multi-strand.
  • the conductive core 11 is made of metallic material such as copper wires
  • the insulating sheath 12 is an envelope of thermoplastic material. As shown particularly in FIG.
  • the electrical conductor 10 has an elongated cylindrical shape of revolution about the X axis.
  • This stripping accessory 100 can advantageously equip a connection terminal 10 called a self-stripping connector that can be used to connect the electrical conductor. isolated to another conductor not shown (see Figure 1) or may be integral with a housing of an electrical equipment or be reported, to allow the connection of this equipment to the electrical conductor necessary for its service (see Figure 9 ). As shown in FIGS.
  • the stripping device 100 comprises, on the one hand, means 110 for cutting the insulating sheath 12 of the electrical conductor 10 over a certain length along a direction X 1 substantially parallel to the axis X of said electrical conductor, and, secondly, separation and discharge means 140, 150 outside said stripping accessory of said insulating sheath 12 cut from said electrical conductor 10.
  • the cutting means 110 and the separating means and outlet 140, 150 of the accessory belong to the same one-piece part, so that 'there is a perfect continuity therebetween. As shown more particularly in FIGS.
  • the cutting means 110 comprise, for each insulated electrical conductor 10, two cutting lips 112, 113 arranged substantially in V between which is defined a slot 111 for introducing the electrical conductor 10.
  • Each slot 111 extends along the axis X1 introduction of the electrical conductor in said stripping accessory 100.
  • the stripping accessory 100 shown in Figures 1 to 3 comprises two slots 111 for introducing two insulated electrical conductors 10 and stripping accessory 100 shown in Figures 4 and 5 comprises six slots 111 for introducing six insulated electrical conductors.
  • the separation and evacuation means 140, 150 comprise, for each electrical conductor, two ramps 140, 150 extending generally obliquely along the axes Y1, Y2 with respect to the direction of the introduction X1 of each electrical conductor in the slot 111 of the stripping accessory 100, these ramps 140, 150 being divergent relative to each other. It will be noted that the two ramps 140, 150 associated with each slot 111 have slightly curved surfaces which are connected continuously to said cutting lips 112, 113. According to the embodiment shown in FIGS.
  • the stripping accessory 100 is consisting of a metal piece 1 thin cut and folded comprising, for each slot 111, a branch formed by one of the cutting lips 112 and one of the ramps 140 extending in the continuity of this cutting lip 112 and another branch formed by the another cutting lip 113 and the other ramp 150 which extends in the continuity of this cutting lip 113.
  • Each of the branches of the metal part 1 constituting the stripping accessory 100 is connected by a bend to a rear wall 2. According to a preferred characteristic of the stripping accessory 100 shown in FIGS. 1 to 3, the branches of said metal part 1 have a certain degree of freedom.
  • the stripping accessory 100 shown in Figures 4 and 5 is made of a single piece of molded plastic material. It also comprises a rear wall 2 which supports on the front face the ramps 140, 150 which extend in the continuity of the cutting blades 112, 113.
  • FIGS. 4 and 5 illustrate another advantageous characteristic of the stripping accessory 100 shown in FIGS.
  • the latter comprises downstream separation and evacuation means 140, 150, downstream guide means 160 of the bare conductive core of each isolated electrical conductor, these downstream guide means 160 belonging to said part monoblock 1 to which also belong said cutting means 110 and said separation and evacuation means 140, 150.
  • these downstream guide means comprise for each insulated electrical conductor a circular orifice 160 formed in the rear wall 2 of the stripping accessory 100, this circular orifice 160 having an axis coincident with the insertion direction X1 of the insulated electrical conductor 10 in said den component;
  • FIG. 1 when the stripping accessory 100 equips one or more connection terminals 10, each circular orifice 160 constituting the downstream guide means is positioned in front of the entrance to the housing.
  • the stripping accessory 100 may comprise upstream guiding means 201 of each isolated electrical conductor towards the cutting means 110.
  • these upstream guide means here comprise, for each insulated electrical conductor, a cylindrical duct 201 centered on the introduction direction X1 of the electrical conductor insulated in said stripping accessory 100.
  • these upstream guide means 201 belong to a cover 200 attached by snapping on the front face of the stripping accessory 100.
  • the stripping accessory 100 shown in Figures 4 and 5 equipped with the cover 200 comprises latching means adapted to cooperate with latching means complementary provided on the outer face of a base 20 of an electrical equipment on either side of the terminal block 21 of this apparatus.
  • the stripping accessory 100 shown in FIGS. 4 and 5 is particularly suitable for allowing the stripping of six insulated electrical conductors, namely three electrical conductors supplying the electrical equipment located in the base 20 and three conductors. for the transplanting of each of the terminals to serve other electrical equipment of the same type.
  • the stripping accessory 100 shown in the figures, associated with one or more connection terminals, operates in the following manner. One end of the electrical conductor 10 cut is engaged in the upstream guide means 201 so that the cut end face of the conductor, leaving exposed the conductive core 11, is positioned against the cutting lips 112, 113 of the accessory 100.
  • the insulated electrical conductor 10 is pushed along the X1 axis in the corresponding slot 111 of said stripping accessory 100, and the cutting lips 112, 113 cut out the insulating sheath 12 of this insulated electrical conductor 10 on both sides. other of its X axis over a certain length so as to strip locally this insulated electrical conductor 10.
  • the insulating sheath 12 cut is separated and discharged to the outside of the stripping accessory 100 by sliding on the ramps 140, 150.
  • the stripped conductive core 11 of the electrical conductor 10 then engages in the circular orifice 160 provided in the rear wall 2 of the stripping accessory. 100 and is guided to terminal 10; 21 corresponding.
  • This denuded conductive core 11 introduced into the terminal may be blocked by a conventional non-represented locking member which may be an automatic assembly member of the terminal and the conductor. Due to the perfect continuity between the ramps 140, 150 and the cutting lips 112, 113 corresponding, there is no risk that the insulating sheath 12 cut does not escape outwards and is introduced into the circular orifice 160 provided for guiding the conductive core 11 to the corresponding terminal.
  • the width of the slot 111 defines between the pair of corresponding cutting lips 112, 113 adapts to the dimension and the more or less oval shape of the insulated electrical conductor 10 to be connected.
  • the present invention is not limited to the embodiments described and shown, but the skilled person will be able to make any variant within his mind.

Landscapes

  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Ladders (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Insulated Conductors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The invention relates to a tool (100) for stripping at least one insulated electric conductor (10) which consists of a conductive core (11) and insulating jacket (12) comprises means (110) for cutting the insulating jacket on a given length in a direction substentially parallel to the conductor axis (X) and means for separating and removing (140, 150) said insulating jacket cut from each electric conductor outside said tool. The inventive cutting, separating and removing means are embodied in the form of one integral unit in such a way that they perfectly follow each other in a sequential manner.

Description

ACCESSOIRE DE DENUDAGE D'UN CONDUCTEUR ÉLECTRIQUE ISOLE ET BORNE DE CONNEXION AUTO-DENUDANTE COMPRENANT UN TEL ACCESSOIRE INSULATED ELECTRICAL CONDUCTOR STRIPPING ACCESSORY AND SELF-CONDUCTING CONNECTION TERMINAL COMPRISING SUCH AN ACCESSORY
DOMAINE TECHNIQUE AUQUEL SE RAPPORTE L'INVENTION La présente invention concerne de manière générale les connecteurs auto-dénudants. Elle concerne plus particulièrement un accessoire de denudage d'au moins un conducteur électrique isolé à âme conductrice et gaine isolante comprenant, d'une part, des moyens de découpage de la gaine isolante sur une certaine longueur selon une direction sensiblement parallèle à l'axe dudit conducteur, et, d'autre part, des moyens de séparation et d'évacuation à l'extérieur dudit accessoire de ladite gaine isolante découpée de chaque conducteur électrique. L'invention trouve une application particulièrement avantageuse dans l'équipement d'une borne de connexion dite auto-dénudante, qu'il s'agisse d'une borne de connexion destinée à intervenir isolément, par exemple pour le raccordement d'un conducteur électrique à un autre, ou qu'il s'agissent d'une borne de connexion qui, faisant partie intégrante du boîtier d'un quelconque appareillage électrique, ou dûment rapportée sur ce boîtier, est destinée au raccordement, à cet appareillage, d'un des conducteurs électriques nécessaires à sa desserte. ARRIERE-PLAN TECHNOLOGIQUE Les moyens pour dénuder un conducteur électrique dans les bornes de connexion auto-dénudantes déjà connues, sont des moyens d'arrachement, de perçage ou de découpage de la gaine isolante du conducteur électrique, suivant une direction sensiblement perpendiculaire ou parallèle à l'axe dudit conducteur. Il peut s'agir d'une fente dont le fond forme un logement de réception de l'âme conductrice du conducteur et pourvue de lèvres coupantes s'étendant perpendiculairement à l'axe dudit conducteur. Cette fente est solidaire d'un couvercle apte à venir fermer un logement de réception. Le conducteur électrique est logé en partie dans ledit logement de réception, puis le couvercle est rabattu sur celui-ci de sorte que la fente enfourche ledit conducteur électrique. Le conducteur électrique s'introduit alors dans la fente, suivant une direction d'introduction parallèle auxdites lèvres coupantes, et celles-ci coupent et déplacent localement la gaine isolante dudit conducteur selon une direction perpendiculaire à l'axe de ce dernier, de sorte qu'une partie de son âme conductrice se loge dans le fond de ladite fente et réalise le contact électrique avec la borne. Il peut s'agir d'une pointe métallique qui vient percer la gaine isolante du conducteur électrique placé dans un logement de réception, le perçage s'effectuant suivant une direction perpendiculaire à l'axe dudit conducteur, de façon à venir au contact de l'âme conductrice dudit conducteur pour réaliser le raccordement électrique. L'inconvénient principal des moyens de déplacement d'isolant ou de perçage précités réside dans le fait qu'ils ne permettent pas de réaliser une séparation franche de la gaine isolante par rapport à l'âme conductrice du conducteur électrique, et il peut alors subsister, après dénudage du conducteur électrique introduit dans une borne de connexion équipée de tels moyens de dénudage, un ou plusieurs copeau(x) de gaine isolante entre l'âme conductrice dudit conducteur et la partie métallique de raccordement électrique de ladite borne, les copeaux entraînant un mauvais contact électrique entre le conducteur et ladite borne de connexion. Au surplus, la mise en place et le dénudage du conducteur électrique dans les bornes de connexion précitées, nécessitent deux gestes distincts de l'installateur, ce qui est relativement complexe et peut prendre un temps non négligeable. Enfin, il peut s'agir, comme cela est décrit dans le document DE 196 35 872, de couteaux qui s'étendent dans une ouverture d'introduction du conducteur électrique dans la borne électrique, selon la direction d'introduction dudit conducteur de sorte que lesdits couteaux sont aptes à découper la gaine isolante du conducteur selon une direction sensiblement parallèle à l'axe dudit conducteur. En outre, dans la borne de connexion décrite dans le document DE 196 35 872, il est prévu, en aval de ladite ouverture d'introduction équipée desdits couteaux, deux conduits divergents dont une paroi oblique permet l'évacuation vers l'extérieur de la gaine isolante. En aval de ces conduits d'évacuation, il est prévu enfin le logement de réception de l'âme conductrice dénudée où est établie la connexion électrique avec l'élément de contact métallique de la borne. L'axe de ce logement de réception est centré sur l'axe de l'ouverture d'introduction. Une telle borne de connexion auto-dénudante présente cependant plusieurs inconvénients. Cette borne est constituée de plusieurs pièces assemblées. Elle comprend une première pièce percée d'un conduit cylindrique de révolution formant l'ouverture d'introduction du conducteur électrique isolé dans laquelle s'étendent lesdits couteaux et débouchant sur une sortie tronconique dont la paroi oblique forme une des parois obliques de chaque conduit d'évacuation. Elle comprend en outre une deuxième pièce pourvue d'une embouchure tronconique dont la paroi oblique forme l'autre des parois obliques de chaque conduit d'évacuation, suivi d'un conduit cylindrique formant le logement de réception de l'âme conductrice dénudée du conducteur électrique. Ainsi, il est nécessaire que ces première et deuxième pièces soient parfaitement alignées pour que l'opération de dénudage soit réalisée correctement ce qui implique une réalisation complexe de ladite borne. En particulier, s'il n'y a pas une coaxialité parfaite entre les deux pièces précitées de la borne, il peut arriver que la portion de gaine isolante découpée du conducteur électrique inséré dans ladite borne ne soit pas évacuée correctement par les conduits d'évacuation mais qu'elle s'introduise dans le logement de réception de l'âme conductrice en provoquant un défaut de contact électrique entre le conducteur électrique et l'organe métallique de contact de la borne. En outre, dans cette borne, les couteaux sont fixés rigidement au corps de la borne. Ainsi la position des couteaux est donc immuable et lesdits couteaux ne peuvent pas absorber les tolérances dimensionnelles de la gaine isolante et/ou de l'âme conductrice du conducteur électrique à connecter. OBJET DE L'INVENTION Afin de remédier aux inconvénients précités la présente invention propose un nouvel accessoire de dénudage tel que définit en introduction, caractérisé en ce que les moyens de découpage et les moyens de séparation et d'évacuation appartiennent à la même pièce monobloc de sorte qu'il y a une continuité parfaite entre ceux-ci. D'autres caractéristiques non limitatives et avantageuses de l'accessoire de dénudage selon l'invention sont les suivantes : - il comprend en aval desdits moyens de séparation et d'évacuation des moyens de guidage aval de l'âme conductrice dénudée qui appartiennent à ladite pièce monobloc à laquelle appartiennent lesdits moyens de découpage et lesdits moyens de séparation et d'évacuation ; - lesdits moyens de découpage comprennent, pour chaque conducteur électrique, au moins une lèvre coupante s'étendant sensiblement parallèlement à l'axe du conducteur électrique ; - les moyens de découpage comportent deux lèvres coupantes disposées sensiblement en V entre lesquelles est définie une fente d'introduction du conducteur électrique ; - lesdits moyens de séparation et d'évacuation sont agencés de sorte que la séparation et l'évacuation de la gaine isolante découpée s'effectuent de part et d'autre de l'axe dudit conducteur électrique ; - lesdits moyens de séparation et d'évacuation comprennent, pour chaque conducteur électrique, deux rampes s'étendant globalement en oblique par rapport à la direction d'introduction de chaque conducteur électrique dans ledit accessoire, lesdites rampes étant divergentes l'une par rapport à l'autre ; - il est constitué d'une pièce métallique mince découpée et pliée comprenant, pour chaque fente, une branche formée par une des lèvres coupantes et une des rampes s'étendant dans la continuité de ladite lèvre coupante et une autre branche formée par l'autre lèvre coupante et l'autre rampe qui s'étend dans la continuité de ladite lèvre coupante ; - les branches de ladite pièce métallique présente une certaine élasticité de sorte que l'écartement entre les lèvres coupantes d'une fente peut varier légèrement pour s'adapter au diamètre externe du conducteur électrique isolé à dénuder ; - il est réalisé en matière plastique moulée ; - lesdits moyens de guidage aval comprennent un orifice circulaire dont l'axe s'étendant selon la direction d'introduction du conducteur électrique isolé dans ledit accessoire ; - il comporte des moyens de guidage amont de chaque conducteur électrique isolé vers lesdits moyens de découpage ; - lesdits moyens de guidage amont comprennent un conduit cylindrique centré sur la direction d'introduction du conducteur électrique isolé dans ledit accessoire ; - lesdits moyens de guidage amont appartiennent à un capot à rapporter sur la face avant dudit accessoire ; et - il comprend des moyens d'encliquetage adaptés à coopérer avec des moyens d'encliquetage complémentaires prévus sur la face externe d'un socle d'appareillage électrique de part et d'autre du bornier de cet appareillage. L'invention concerne également une borne de connexion électrique qui comprend en aval d'un organe métallique de contact électrique un accessoire de dénudage selon l'invention. DESCRIPTION DÉTAILLÉE D'UN EXEMPLE DE RÉALISATION La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée. Sur les dessins annexés : - la figure 1 est une vue en perspective de derrière d'un premier mode de réalisation de l'accessoire de dénudage selon l'invention ; - la figure 2 est une vue en perspective de face de l'accessoire de dénudage de la figure 1 ; - la figure 3 est une vue en perspective de côté de l'accessoire de dénudage de la figure 1 ; - la figure 4 est une vue en perspective de face d'un deuxième mode de réalisation de l'accessoire de dénudage selon l'invention ; - la figure 5 est une vue en perspective de derrière de l'accessoire de dénudage de la figure 4 ; - la figure 6 est une vue de face de la figure 7 ; - la figure 7 est une vue en perspective de derrière de l'accessoire de dénudage de la figure 4 sur lequel sont rapportés lesdits moyens de guidage de la figure 6 ; - la figure 8 est une vue en perspective de derrière des moyens de guidage des conducteurs électriques à rapporter sur l'accessoire de dénudage de la figure 4 ; et - la figure 9 est une vue éclatée en perspective de derrière d'un appareillage électrique faisant apparaître ses bornes de connexion sur lesquelles est rapporté l'accessoire de dénudage de la figure 7. En préliminaire, on notera que d'une figure à l'autre, les éléments identiques ou similaires des différents modes de réalisation de l'invention seront, dans la mesure du possible, référencés par les mêmes signes de référence, et ne seront pas décrits à chaque fois. Sur les figures 1 à 5 on a représenté deux modes de réalisation d'un accessoire de dénudage 100 d'au moins un conducteur électrique isolé 10. Il s'agit en pratique d'un conducteur électrique plutôt rigide, à âme conductrice 11 et gaine isolante 12. Bien entendu, on peut introduire dans cet accessoire de dénudage 100 tout type de conducteur électrique isolé, souple ou rigide, monobrin ou multibrin. De manière connue en soi, l'âme conductrice 11 est en matériau métallique tel que des fils de cuivre, la gaine isolante 12 est une enveloppe au matériau thermoplastique. Comme le montre particulièrement la figure 1 , le conducteur électrique 10 est de forme allongée cylindrique de révolution autour de l'axe X. Cet accessoire de dénudage 100 peut équiper avantageusement une borne de connexion 10 dite auto-dénudante pouvant servir au raccordement du conducteur électrique isolé 10 à un autre conducteur non représenté (voir figure 1) ou pouvant faire partie intégrante d'un boîtier d'un appareillage électrique ou y être rapporté, pour permettre le raccordement de cet appareillage au conducteur électrique nécessaire à sa desserte (voir figure 9). Comme le montrent les figures 1 à 5, l'accessoire de dénudage 100 comprend, d'une part, des moyens de découpage 110 de la gaine isolante 12 du conducteur électrique 10 sur une certaine longueur selon une direction X1 sensiblement parallèle à l'axe X dudit conducteur électrique, et, d'autre part, des moyens de séparation et d'évacuation 140, 150 à l'extérieur dudit accessoire de dénudage de ladite gaine isolante 12 découpée dudit conducteur électrique 10. Selon une caractéristique particulièrement avantageuse de l'accessoire de dénudage 100, les moyens de découpage 110 et les moyens de séparation et d'évacuation 140, 150 de l'accessoire appartiennent à la même pièce monobloc, de sorte qu'il' y a une continuité parfaire entre ceux-ci. Comme le montrent plus particulièrement les figures 3 et 4, ici, les moyens de découpage 110 comprennent, pour chaque conducteur électrique isolé 10, deux lèvres coupantes 112, 113 disposées sensiblement en V entre lesquelles est définie une fente 111 d'introduction du conducteur électrique 10. Chaque fente 111 s'étend selon l'axe X1 d'introduction du conducteur électrique dans ledit accessoire de dénudage 100. L'accessoire de dénudage 100 représenté sur les figures 1 à 3 comporte deux fentes 111 d'introduction de deux conducteurs électriques isolés 10 et l'accessoire de dénudage 100 représenté sur les figures 4 et 5 comporte six fentes 111 d'introduction de six conducteurs électriques isolés. En outre, les moyens de séparation et d'évacuation 140, 150 de l'accessoire de dénudage 100 représentés sur les figures 1 à 5, sont agencés de sorte que la séparation et l'évacuation de la gaine isolante découpée de chaque conducteur électrique s'effectuent de part et d'autre de l'axe X du conducteur électrique. Plus particulièrement, ici les moyens de séparation et d'évacuation 140, 150 comprennent, pour chaque conducteur électrique, deux rampes 140, 150 s'étendant globalement en oblique selon les axes Y1 , Y2 par rapport à la direction de l'introduction X1 de chaque conducteur électrique dans la fente 111 de l'accessoire de dénudage 100, ces rampes 140, 150 étant divergentes l'une par rapport à l'autre. On remarquera que les deux rampes 140, 150 associées à chaque fente 111 présentent des surfaces légèrement incurvées qui se raccordent continûment auxdites lèvres coupantes 112, 113. Selon le mode de réalisation représenté sur les figures 1 à 3, l'accessoire de dénudage 100 est constitué d'une pièce métallique 1 mince découpée et pliée comprenant, pour chaque fente 111 , une branche formée par une des lèvres coupantes 112 et une des rampes 140 s'étendant dans la continuité de cette lèvre coupante 112 et une autre branche formée par l'autre lèvre coupante 113 et l'autre rampe 150 qui s'étend dans la continuité de cette lèvre coupante 113. Chacune des branches de la pièce métallique 1 constituant l'accessoire de dénudage 100 se raccorde par un coude à une paroi arrière 2. Selon une caractéristique préférentielle de l'accessoire de dénudage 100 représenté sur les figures 1 à 3, les branches de ladite pièce métallique 1 présentent une certaine élasticité de sorte que l'écartement entre les lèvres coupantes 112, 113 formant la fente 111 d'introduction d'un conducteur électrique isolé 10, peut varier légèrement pour s'adapter au diamètre externe et à la forme plus ou moins ovalisée du conducteur électrique isolé à dénuder. L'accessoire de dénudage 100 représenté sur les figures 4 et 5 est réalisé d'une seule pièce en matière plastique moulée. Il comporte également une paroi arrière 2 qui supporte en face avant les rampes 140, 150 qui s'étendent dans la continuité des lames coupantes 112, 113. En outre, selon une autre caractéristique avantageuse de l'accessoire de dénudage 100 représenté sur les figures 1 à 5, celui-ci comprend en aval des moyens de séparation et d'évacuation 140, 150, des moyens de guidage aval 160 de l'âme conductrice dénudée de chaque conducteur électrique isolé, ces moyens de guidage aval 160 appartenant à ladite pièce monobloc 1 à laquelle appartiennent également lesdits moyens de découpage 110 et lesdits moyens de séparation et d'évacuation 140, 150. Ici, ces moyens de guidage aval comprennent pour chaque conducteur électrique isolé un orifice circulaire 160 formé dans la paroi arrière 2 de l'accessoire de dénudage 100, cet orifice circulaire 160 présentant un axe confondu avec la direction d'introduction X1 du conducteur électrique isolé 10 dans ledit accessoire de dénudage 100. En particulier, comme le montre la figure 1 , lorsque l'accessoire de dénudage 100 équipe une ou plusieurs bornes de connexion 10, chaque orifice circulaire 160 constituant les moyens de guidage aval, est positionné en face de l'entrée du logement de réception de chaque borne de connexion 10. Par ailleurs, comme le montrent les figures 6 à 8, avantageusement, l'accessoire de dénudage 100 peut comporter des moyens de guidage amont 201 de chaque conducteur électrique isolé vers les moyens de découpage 110. Comme le montre plus particulièrement la figure 6, ces moyens de guidage amont comprennent ici pour chaque conducteur électrique isolé, un conduit cylindrique 201 centré sur la direction d'introduction X1 du conducteur électrique isolé dans ledit accessoire de dénudage 100. Selon le cas typique représenté sur la figure 8, ces moyens de guidage amont 201 appartiennent à un capot 200 rapporté par encliquetage sur la face avant de l'accessoire de dénudage 100. En outre, comme le montre plus particulièrement la figure 9, l'accessoire de dénudage 100 représenté sur les figures 4 et 5 équipé du capot 200 comprend des moyens d'encliquetage adaptés à coopérer avec des moyens d'encliquetage complémentaires prévus sur la face externe d'un socle 20 d'un appareillage électrique de part et d'autre du bornier 21 de cet appareillage. On remarquera que l'accessoire de dénudage 100 représenté sur les figures 4 et 5 est particulièrement adapté à permettre le dénudage de six conducteurs électriques isolés, à savoir trois conducteurs électriques d'alimentation de l'appareillage électrique situé dans le socle 20 et trois conducteurs pour le repiquage de chacune des bornes en vue de desservir un autre appareillage électrique du même type. L'accessoire de dénudage 100 représenté sur les figures, associé à une ou plusieurs bornes de connexion, fonctionne de la manière suivante. Une extrémité du conducteur électrique 10 coupé est engagée dans les moyens de guidage amont 201 de sorte que la face d'extrémité coupée du conducteur, laissant à nu l'âme conductrice 11 , est positionnée contre les lèvres coupantes 112, 113 de l'accessoire de dénudage 100. Puis le conducteur électrique isolé 10 est poussé selon l'axe X1 dans la fente 111 correspondante dudit accessoire de dénudage 100, et les lèvres coupantes 112, 113 découpent la gaine isolante 12 de ce conducteur électrique isolé 10 de part et d'autre de son axe X sur une certaine longueur de façon à dénuder localement ce conducteur électrique isolé 10. Simultanément au découpage, la gaine isolante 12 découpée est séparée et évacuée vers l'extérieur de l'accessoire de dénudage 100 en glissant sur les rampes 140, 150. L'âme conductrice dénudée 11 du conducteur électrique 10 s'engage alors dans l'orifice circulaire 160 prévu dans la paroi arrière 2 de l'accessoire de dénudage 100 et est guidée vers la borne 10 ; 21 correspondante. Cette âme conductrice dénudée 11 introduite dans la borne peut y être bloquée par un organe de blocage classique non représenté qui peut être un organe d'assemblage automatique de la borne et du conducteur. Du fait de la continuité parfaite entre les rampes 140, 150 et les lèvres coupantes 112, 113 correspondantes, il n'y a aucun risque que la gaine isolante 12 découpée ne s'évacue pas vers l'extérieur et s'introduise dans l'orifice circulaire 160 prévu pour le guidage de l'âme conductrice 11 vers la borne correspondante. En outre, avantageusement la largeur de la fente 111 définit entre la paire de lèvres coupantes 112, 113 correspondantes s'adapte à la dimension et à la forme plus ou moins ovalisée du conducteur électrique isolé 10 à raccorder. La présente invention n'est nullement limitée aux modes de réalisation décrits et représentés, mais l'homme du métier saura y apporter toute variante conforme à son esprit. TECHNICAL FIELD TO WHICH THE INVENTION RELATES The present invention relates generally to self-stripping connectors. It relates more particularly to a stripping accessory of at least one insulated electrical conductor with a conductive core and insulating sheath comprising, on the one hand, means for cutting the insulating sheath over a certain length in a direction substantially parallel to the axis. said conductor, and, secondly, means for separating and discharging outside said accessory of said insulated sheath cut from each electrical conductor. The invention finds a particularly advantageous application in the equipment of a so-called self-stripping connection terminal, whether it is a connection terminal intended to act in isolation, for example for the connection of an electrical conductor to another, or that it is a connection terminal which, being an integral part of the housing of any electrical equipment, or duly attached to this housing, is intended for the connection, to this apparatus, of a electrical conductors necessary for its service. BACKGROUND ART The means for stripping an electrical conductor in the self-stripping connection terminals already known, are means for tearing, drilling or cutting the insulating sheath of the electrical conductor, in a direction substantially perpendicular or parallel to the axis of said driver. It may be a slot whose bottom forms a receiving housing of the conducting core of the conductor and provided with cutting lips extending perpendicularly to the axis of said conductor. This slot is secured to a cover adapted to close a receiving housing. The electrical conductor is housed partially in said receiving housing, then the cover is folded down thereon so that the slot straddles said electrical conductor. The electrical conductor is then introduced into the slot, in a direction of introduction parallel to said cutting lips, and these cut and locally move the insulating sheath of said conductor in a direction perpendicular to the axis of the latter, so that a portion of its conductive core is housed in the bottom of said slot and makes electrical contact with the terminal. It may be a metal tip that pierces the insulating sheath of the electrical conductor placed in a receiving housing, the drilling being carried out in a direction perpendicular to the axis of said conductor, so as to come into contact with the conductive core of said conductor for making the electrical connection. The main disadvantage of the above-mentioned insulating or drilling displacement means lies in the fact that they do not make it possible to achieve a clear separation of the insulating sheath with respect to the conductive core of the electrical conductor, and it may then remain , after stripping of the electrical conductor introduced into a connection terminal equipped with such stripping means, one or more chips (x) of insulating sheath between the conductor core of said conductor and the metal part of electrical connection of said terminal, the chips causing poor electrical contact between the conductor and said connection terminal. In addition, the introduction and stripping of the electrical conductor in the aforementioned connection terminals, require two separate actions of the installer, which is relatively complex and can take a significant time. Finally, it may be, as described in DE 196 35 872, knives which extend into an opening of introduction of the electrical conductor in the electrical terminal, according to the direction of introduction of said conductor so that said knives are able to cut the insulating sheath of the conductor in a direction substantially parallel to the axis of said conductor. In addition, in the connection terminal described in document DE 196 35 872, downstream of said insertion opening equipped with said knives, two diverging ducts are provided whose oblique wall allows the evacuation towards the outside of the chamber. insulating sheath. Downstream of these exhaust ducts, there is finally provided the receiving housing of the stripped conductive core where the electrical connection is established with the metal contact element of the terminal. The axis of this receiving housing is centered on the axis of the introduction opening. Such self-cutting connection terminal has however several disadvantages. This terminal consists of several assembled parts. It comprises a first part pierced with a cylindrical conduit of revolution forming the insertion opening of the insulated electrical conductor in which said knives extend and opening onto a frustoconical outlet whose oblique wall forms one of the oblique walls of each duct. 'evacuation. It furthermore comprises a second part provided with a frustoconical mouthpiece whose oblique wall forms the other of the oblique walls of each discharge duct, followed by a cylindrical duct forming the housing for receiving the stripped conductive core of the conductor. electric. Thus, it is necessary for these first and second parts to be perfectly aligned so that the stripping operation is performed correctly, which implies a complex realization of said terminal. In particular, if there is not perfect coaxiality between the two aforementioned parts of the terminal, it may happen that the portion of insulating sheath cut from the electrical conductor inserted in said terminal is not evacuated correctly by the conduits of evacuation but it is introduced into the receiving housing of the conductive core by causing a fault electrical contact between the electrical conductor and the metal contact member of the terminal. In addition, in this terminal, the knives are fixed rigidly to the body of the terminal. Thus the position of the knives is immutable and said knives can not absorb the dimensional tolerances of the insulating sheath and / or the conductive core of the electrical conductor to be connected. OBJECT OF THE INVENTION In order to overcome the aforementioned drawbacks, the present invention proposes a new stripping accessory as defined in the introduction, characterized in that the cutting means and the separation and evacuation means belong to the same single piece of so that there is perfect continuity between them. Other non-limiting and advantageous features of the stripping accessory according to the invention are the following: it comprises downstream of said means for separating and discharging the downstream guide means of the stripped conductive core which belong to said monoblock part to which belong said cutting means and said separation and evacuation means; said cutting means comprise, for each electrical conductor, at least one cutting lip extending substantially parallel to the axis of the electrical conductor; - The cutting means comprise two cutting lips disposed substantially in V between which is defined an introduction slot of the electrical conductor; said separation and evacuation means are arranged in such a way that the separation and evacuation of the cut insulating sheath take place on either side of the axis of said electrical conductor; said separation and evacuation means comprise, for each electrical conductor, two ramps extending generally obliquely with respect to the direction of insertion of each electrical conductor into said accessory, said ramps being divergent with respect to the other ; - It consists of a cut and folded thin metal part comprising, for each slot, a branch formed by one of the cutting lips and one of the ramps extending in the continuity of said cutting lip and another branch formed by the other cutting lip and the other ramp which extends in the continuity of said cutting lip; - The branches of said metal part has a certain elasticity so that the spacing between the cutting lips of a slot may vary slightly to adapt to the outer diameter of the insulated electrical conductor to be stripped; - It is made of molded plastic; said downstream guide means comprise a circular orifice whose axis extends in the insertion direction of the electrical conductor isolated in said accessory; it comprises upstream guiding means for each isolated electrical conductor towards said cutting means; said upstream guide means comprise a cylindrical duct centered on the insertion direction of the isolated electrical conductor in said accessory; said upstream guide means belong to a cover to be attached to the front face of said accessory; and - it comprises latching means adapted to cooperate with complementary latching means provided on the outer face of a base of electrical equipment on either side of the terminal block of this apparatus. The invention also relates to an electrical connection terminal which comprises downstream of a metal electrical contact member a stripping accessory according to the invention. DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT The following description with reference to the accompanying drawings, given by way of non-limiting examples, will make it clear what the invention consists of and how it can be implemented. In the accompanying drawings: - Figure 1 is a rear perspective view of a first embodiment of the stripping accessory according to the invention; - Figure 2 is a front perspective view of the stripping accessory of Figure 1; FIG. 3 is a side perspective view of the stripping accessory of FIG. 1; FIG. 4 is a front perspective view of a second embodiment of the stripping accessory according to the invention; - Figure 5 is a rear perspective view of the stripping accessory of Figure 4; FIG. 6 is a front view of FIG. 7; - Figure 7 is a rear perspective view of the stripping accessory of Figure 4 on which are reported said guide means of Figure 6; - Figure 8 is a rear perspective view of the guide means of the electrical conductors to report on the stripping accessory of Figure 4; and FIG. 9 is an exploded perspective view from behind of electrical equipment showing its connection terminals to which the stripping accessory of FIG. 7 is attached. As a preliminary, it will be noted that from one figure to another, the identical or similar elements of the various embodiments of the invention will, as far as possible, be referenced by the same reference signs, and will not be described. Everytime. FIGS. 1 to 5 show two embodiments of a stripping accessory 100 of at least one insulated electrical conductor 10. This is in practice a rather rigid electrical conductor with a conductive core 11 and sheath 12. Of course, it can introduce in this stripping accessory 100 any type of insulated electrical conductor, flexible or rigid, single-strand or multi-strand. In a manner known per se, the conductive core 11 is made of metallic material such as copper wires, the insulating sheath 12 is an envelope of thermoplastic material. As shown particularly in FIG. 1, the electrical conductor 10 has an elongated cylindrical shape of revolution about the X axis. This stripping accessory 100 can advantageously equip a connection terminal 10 called a self-stripping connector that can be used to connect the electrical conductor. isolated to another conductor not shown (see Figure 1) or may be integral with a housing of an electrical equipment or be reported, to allow the connection of this equipment to the electrical conductor necessary for its service (see Figure 9 ). As shown in FIGS. 1 to 5, the stripping device 100 comprises, on the one hand, means 110 for cutting the insulating sheath 12 of the electrical conductor 10 over a certain length along a direction X 1 substantially parallel to the axis X of said electrical conductor, and, secondly, separation and discharge means 140, 150 outside said stripping accessory of said insulating sheath 12 cut from said electrical conductor 10. According to a particularly advantageous characteristic of the accessory stripping 100, the cutting means 110 and the separating means and outlet 140, 150 of the accessory belong to the same one-piece part, so that 'there is a perfect continuity therebetween. As shown more particularly in FIGS. 3 and 4, here the cutting means 110 comprise, for each insulated electrical conductor 10, two cutting lips 112, 113 arranged substantially in V between which is defined a slot 111 for introducing the electrical conductor 10. Each slot 111 extends along the axis X1 introduction of the electrical conductor in said stripping accessory 100. The stripping accessory 100 shown in Figures 1 to 3 comprises two slots 111 for introducing two insulated electrical conductors 10 and stripping accessory 100 shown in Figures 4 and 5 comprises six slots 111 for introducing six insulated electrical conductors. In addition, the separation and evacuation means 140, 150 of the stripping accessory 100 shown in FIGS. 1 to 5 are arranged in such a way that the separation and evacuation of the insulating sheath cut from each electrical conductor 'perform on both sides of the X axis of the electrical conductor. More particularly, here the separation and evacuation means 140, 150 comprise, for each electrical conductor, two ramps 140, 150 extending generally obliquely along the axes Y1, Y2 with respect to the direction of the introduction X1 of each electrical conductor in the slot 111 of the stripping accessory 100, these ramps 140, 150 being divergent relative to each other. It will be noted that the two ramps 140, 150 associated with each slot 111 have slightly curved surfaces which are connected continuously to said cutting lips 112, 113. According to the embodiment shown in FIGS. 1 to 3, the stripping accessory 100 is consisting of a metal piece 1 thin cut and folded comprising, for each slot 111, a branch formed by one of the cutting lips 112 and one of the ramps 140 extending in the continuity of this cutting lip 112 and another branch formed by the another cutting lip 113 and the other ramp 150 which extends in the continuity of this cutting lip 113. Each of the branches of the metal part 1 constituting the stripping accessory 100 is connected by a bend to a rear wall 2. According to a preferred characteristic of the stripping accessory 100 shown in FIGS. 1 to 3, the branches of said metal part 1 have a certain degree of freedom. elasticity so that the spacing between the cutting lips 112, 113 forming the insertion slot 111 of an insulated electrical conductor 10 may vary slightly to adapt to the outer diameter and the more or less oval shape of the electrical conductor insulated to strip. The stripping accessory 100 shown in Figures 4 and 5 is made of a single piece of molded plastic material. It also comprises a rear wall 2 which supports on the front face the ramps 140, 150 which extend in the continuity of the cutting blades 112, 113. In addition, according to another advantageous characteristic of the stripping accessory 100 shown in FIGS. 1 to 5, the latter comprises downstream separation and evacuation means 140, 150, downstream guide means 160 of the bare conductive core of each isolated electrical conductor, these downstream guide means 160 belonging to said part monoblock 1 to which also belong said cutting means 110 and said separation and evacuation means 140, 150. Here, these downstream guide means comprise for each insulated electrical conductor a circular orifice 160 formed in the rear wall 2 of the stripping accessory 100, this circular orifice 160 having an axis coincident with the insertion direction X1 of the insulated electrical conductor 10 in said den component; In particular, as shown in FIG. 1, when the stripping accessory 100 equips one or more connection terminals 10, each circular orifice 160 constituting the downstream guide means is positioned in front of the entrance to the housing. In addition, as shown in FIGS. 6 to 8, advantageously, the stripping accessory 100 may comprise upstream guiding means 201 of each isolated electrical conductor towards the cutting means 110. shows it more particularly in FIG. 6, these upstream guide means here comprise, for each insulated electrical conductor, a cylindrical duct 201 centered on the introduction direction X1 of the electrical conductor insulated in said stripping accessory 100. According to the typical case represented on FIG. 8, these upstream guide means 201 belong to a cover 200 attached by snapping on the front face of the stripping accessory 100. In addition, as shown more particularly in Figure 9, the stripping accessory 100 shown in Figures 4 and 5 equipped with the cover 200 comprises latching means adapted to cooperate with latching means complementary provided on the outer face of a base 20 of an electrical equipment on either side of the terminal block 21 of this apparatus. It will be noted that the stripping accessory 100 shown in FIGS. 4 and 5 is particularly suitable for allowing the stripping of six insulated electrical conductors, namely three electrical conductors supplying the electrical equipment located in the base 20 and three conductors. for the transplanting of each of the terminals to serve other electrical equipment of the same type. The stripping accessory 100 shown in the figures, associated with one or more connection terminals, operates in the following manner. One end of the electrical conductor 10 cut is engaged in the upstream guide means 201 so that the cut end face of the conductor, leaving exposed the conductive core 11, is positioned against the cutting lips 112, 113 of the accessory 100. Then the insulated electrical conductor 10 is pushed along the X1 axis in the corresponding slot 111 of said stripping accessory 100, and the cutting lips 112, 113 cut out the insulating sheath 12 of this insulated electrical conductor 10 on both sides. other of its X axis over a certain length so as to strip locally this insulated electrical conductor 10. Simultaneously with the cutting, the insulating sheath 12 cut is separated and discharged to the outside of the stripping accessory 100 by sliding on the ramps 140, 150. The stripped conductive core 11 of the electrical conductor 10 then engages in the circular orifice 160 provided in the rear wall 2 of the stripping accessory. 100 and is guided to terminal 10; 21 corresponding. This denuded conductive core 11 introduced into the terminal may be blocked by a conventional non-represented locking member which may be an automatic assembly member of the terminal and the conductor. Due to the perfect continuity between the ramps 140, 150 and the cutting lips 112, 113 corresponding, there is no risk that the insulating sheath 12 cut does not escape outwards and is introduced into the circular orifice 160 provided for guiding the conductive core 11 to the corresponding terminal. In addition, advantageously the width of the slot 111 defines between the pair of corresponding cutting lips 112, 113 adapts to the dimension and the more or less oval shape of the insulated electrical conductor 10 to be connected. The present invention is not limited to the embodiments described and shown, but the skilled person will be able to make any variant within his mind.

Claims

REVENDICATIONS
1. Accessoire de dénudage (100) d'au moins un conducteur électrique isolé (10) à âme conductrice (11) et gaine isolante (12) comprenant, d'une part, des moyens de découpage (110) de la gaine isolante (12) sur une certaine longueur selon une direction sensiblement parallèle à l'axe (X) dudit conducteur, et, d'autre part, des moyens de séparation et d'évacuation (140,150) à l'extérieur dudit accessoire de ladite gaine isolante découpée de chaque conducteur électrique, caractérisé en ce que les moyens de découpage (110) et les moyens de séparation et d'évacuation (140, 150) appartiennent à la même pièce monobloc de sorte qu'il y a une continuité parfaite entre ceux-ci. Stripping accessory (100) of at least one insulated electrical conductor (10) with a conductive core (11) and insulating sheath (12) comprising, on the one hand, means for cutting (110) the insulating sheath ( 12) over a certain length in a direction substantially parallel to the axis (X) of said conductor, and, on the other hand, separation and evacuation means (140, 150) outside said accessory of said insulated sheath cut out of each electrical conductor, characterized in that the cutting means (110) and the separating and discharging means (140, 150) belong to the same one-piece piece so that there is a perfect continuity between them .
2. Accessoire de dénudage selon la revendication 1 , caractérisé en ce qu'il comprend en aval desdits moyens de séparation et d'évacuation (140,150) des moyens de guidage aval (160) de l'âme conductrice dénudée qui appartiennent à ladite pièce monobloc à laquelle appartiennent lesdits moyens de découpage et lesdits moyens de séparation et d'évacuation. 2. Stripping accessory according to claim 1, characterized in that it comprises downstream of said separation and evacuation means (140,150) downstream guide means (160) of the stripped conductive core which belong to said one-piece piece to which belong said cutting means and said separation and evacuation means.
3. Accessoire de dénudage selon l'une des revendications 1 ou 2, caractérisé en ce que lesdits moyens de découpage comprennent, pour chaque conducteur électrique, au moins une lèvre coupante (112, 113) s'étendant sensiblement parallèlement à l'axe (X) du conducteur électrique. 3. stripping accessory according to one of claims 1 or 2, characterized in that said cutting means comprise, for each electrical conductor, at least one cutting lip (112, 113) extending substantially parallel to the axis ( X) of the electrical conductor.
4. Accessoire de dénudage selon la revendication 3, caractérisé en ce que les moyens de découpage comportent deux lèvres coupantes (112, 113) disposées sensiblement en V entre lesquelles est définie une fente (111) d'introduction du conducteur électrique. 4. Stripping accessory according to claim 3, characterized in that the cutting means comprise two cutting lips (112, 113) disposed substantially in V between which is defined a slot (111) for introducing the electrical conductor.
5. Accessoire de dénudage selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens de séparation et d'évacuation (140,150) sont agencés de sorte que la séparation et l'évacuation de la gaine isolante découpée s'effectuent de part et d'autre de l'axe (X) dudit conducteur électrique. 5. stripping accessory according to any one of the preceding claims, characterized in that said means of separation and evacuation (140,150) are arranged so that the separation and evacuation of the insulating sheath cut is done from and other of the axis (X) of said electrical conductor.
6. Accessoire de dénudage selon la revendication 5, caractérisé en ce que lesdits moyens de séparation et d'évacuation (140,150) comprennent, pour chaque conducteur électrique, deux rampes (140,150) s'étendant globalement en oblique par rapport à la direction d'introduction (X1) de chaque conducteur électrique dans ledit accessoire, lesdites rampes étant divergentes l'une par rapport à l'autre. 6. stripping accessory according to claim 5, characterized in that said means of separation and evacuation (140,150) comprise, for each electrical conductor, two ramps (140,150) extending generally obliquely to the direction of introduction (X1) of each driver in said accessory, said ramps being divergent with respect to each other.
7. Accessoire de dénudage selon les revendications 4 et 6, caractérisé en ce qu'il est constitué d'une pièce métallique (1) mince découpée et pliée comprenant, pour chaque fente, une branche formée par une des lèvres coupantes (112) et une des rampes (140) s'étendant dans la continuité de ladite lèvre coupante (112) et une autre branche formée par l'autre lèvre coupante (113) et l'autre rampe (150) qui s'étend dans la continuité de ladite lèvre coupante (113). 7. Stripping accessory according to claims 4 and 6, characterized in that it consists of a thin metal piece (1) cut and folded comprising, for each slot, a branch formed by one of the cutting lips (112) and one of the ramps (140) extending in the continuity of said cutting lip (112) and another branch formed by the other cutting lip (113) and the other ramp (150) which extends in the continuity of said cutting lip (113).
8. Accessoire de dénudage selon la revendication 7, caractérisé en ce que les branches de ladite pièce métallique (1) présente une certaine élasticité de sorte que l'écartement entre les lèvres coupantes (112,113) peut varier légèrement pour s'adapter au diamètre externe du conducteur électrique isolé à dénuder. 8. stripping accessory according to claim 7, characterized in that the branches of said metal piece (1) has a certain elasticity so that the spacing between the cutting lips (112,113) may vary slightly to adapt to the outer diameter electrical conductor isolated to strip.
9. Accessoire de dénudage selon l'une des revendications 1 à 6, caractérisé en ce qu'il est réalisé en matière plastique moulée. 9. stripping accessory according to one of claims 1 to 6, characterized in that it is made of molded plastic material.
10. Accessoire de dénudage selon l'une des revendications 2 à 8, caractérisé en ce que lesdits moyens de guidage aval comprennent un orifice circulaire (160) dont l'axe s'étendant selon la direction d'introduction du conducteur électrique isolé dans ledit accessoire. 10. Stripping accessory according to one of claims 2 to 8, characterized in that said downstream guide means comprise a circular orifice (160) whose axis extending in the insertion direction of the electrical conductor isolated in said accessory.
11. Accessoire de dénudage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des moyens de guidage amont (201) de chaque conducteur électrique isolé vers lesdits moyens de découpage. 11. Stripping accessory according to any one of the preceding claims, characterized in that it comprises upstream guide means (201) of each isolated electrical conductor to said cutting means.
12. Accessoire de dénudage selon la revendication 11 , caractérisé en ce que lesdits moyens de guidage amont comprennent un conduit cylindrique (201) centré sur la direction d'introduction du conducteur électrique isolé dans ledit accessoire. 12. Stripping accessory according to claim 11, characterized in that said upstream guide means comprise a cylindrical duct (201) centered on the insertion direction of the electrical conductor insulated in said accessory.
13. Accessoire de dénudage selon l'une des revendications 11 ou 12, caractérisé en ce que lesdits moyens de guidage amont (201) appartiennent à un capot (200) à rapporter sur la face avant dudit accessoire. 13. stripping accessory according to one of claims 11 or 12, characterized in that said upstream guide means (201) belong to a cover (200) to report on the front of said accessory.
14. Accessoire de dénudage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des moyens d'encliquetage adaptés à coopérer avec des moyens d'encliquetage complémentaires prévus sur la face externe d'un socle (20) d'appareillage électrique de part et d'autre du bornier (21) de cet appareillage. 14. stripping accessory according to any one of the preceding claims, characterized in that it comprises latching means adapted to cooperate with complementary latching means provided on the outer face of a base (20) d ' electrical equipment on both sides of the terminal block (21) of this apparatus.
15. Borne de connexion électrique qui comprend en aval d'un organe métallique de contact électrique un accessoire de dénudage (100) selon l'une quelconque des revendications 1 à 13. An electrical connection terminal which comprises downstream of a metallic electrical contact member a stripping accessory (100) according to any one of claims 1 to 13.
PCT/FR2005/001325 2004-06-03 2005-05-31 Tool for stripping insulated electric conductor and a self-stripping terminal comprising said tool WO2006000681A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05773028A EP1751827B1 (en) 2004-06-03 2005-05-31 Tool for stripping insulated electric conductor and a self-stripping terminal comprising said tool
DE602005002480T DE602005002480T2 (en) 2004-06-03 2005-05-31 TOOL FOR REMOVING AN INSULATED ELECTRIC LADDER AND SELF-DISCONNECTING DEVICE WITH THIS TOOL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0405991 2004-06-03
FR0405991A FR2871299B1 (en) 2004-06-03 2004-06-03 INSULATED ELECTRICAL CONDUCTOR STRIPPING ACCESSORY AND SELF-CONDUCTING CONNECTION TERMINAL COMPRISING SUCH AN ACCESSORY

Publications (1)

Publication Number Publication Date
WO2006000681A1 true WO2006000681A1 (en) 2006-01-05

Family

ID=34945616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2005/001325 WO2006000681A1 (en) 2004-06-03 2005-05-31 Tool for stripping insulated electric conductor and a self-stripping terminal comprising said tool

Country Status (8)

Country Link
EP (1) EP1751827B1 (en)
CN (1) CN100486035C (en)
AT (1) ATE373324T1 (en)
DE (1) DE602005002480T2 (en)
ES (1) ES2292145T3 (en)
FR (1) FR2871299B1 (en)
PT (1) PT1751827E (en)
WO (1) WO2006000681A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7187813B2 (en) 2005-01-20 2007-03-06 Intel Corporation Optical transistor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861772A (en) * 1973-09-13 1975-01-21 Amp Inc Insulation piercing contact and connector
US4049334A (en) * 1976-01-28 1977-09-20 Raychem Corporation Wire preparation and termination means and method
US4752237A (en) * 1987-07-27 1988-06-21 Amp Incorporated Solderless connector
US5118305A (en) * 1988-05-31 1992-06-02 Erich Hell Terminal block for a cable terminal unit
DE4403507C1 (en) * 1994-02-04 1995-02-16 Kaiser Gmbh & Co Kg Terminal contact device
DE19635872A1 (en) * 1996-09-04 1998-03-05 Langbein Peter Prof Dr Ing Hab Electrical lead cable connector
EP0841716A2 (en) * 1996-11-07 1998-05-13 ABBPATENT GmbH Method and apparatus for providing electrical connection between an installation equipment and an electrical conductor with a surrounding insulation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861772A (en) * 1973-09-13 1975-01-21 Amp Inc Insulation piercing contact and connector
US4049334A (en) * 1976-01-28 1977-09-20 Raychem Corporation Wire preparation and termination means and method
US4752237A (en) * 1987-07-27 1988-06-21 Amp Incorporated Solderless connector
US5118305A (en) * 1988-05-31 1992-06-02 Erich Hell Terminal block for a cable terminal unit
DE4403507C1 (en) * 1994-02-04 1995-02-16 Kaiser Gmbh & Co Kg Terminal contact device
DE19635872A1 (en) * 1996-09-04 1998-03-05 Langbein Peter Prof Dr Ing Hab Electrical lead cable connector
EP0841716A2 (en) * 1996-11-07 1998-05-13 ABBPATENT GmbH Method and apparatus for providing electrical connection between an installation equipment and an electrical conductor with a surrounding insulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7187813B2 (en) 2005-01-20 2007-03-06 Intel Corporation Optical transistor

Also Published As

Publication number Publication date
DE602005002480D1 (en) 2007-10-25
CN1961459A (en) 2007-05-09
FR2871299B1 (en) 2006-08-11
EP1751827B1 (en) 2007-09-12
PT1751827E (en) 2007-11-26
EP1751827A1 (en) 2007-02-14
CN100486035C (en) 2009-05-06
ATE373324T1 (en) 2007-09-15
FR2871299A1 (en) 2005-12-09
ES2292145T3 (en) 2008-03-01
DE602005002480T2 (en) 2008-06-05

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