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WO1982002627A1 - Self stripping electric contact,process for manufacturing such contact and connectors compresing such contact,paticularly for sheet cables - Google Patents

Self stripping electric contact,process for manufacturing such contact and connectors compresing such contact,paticularly for sheet cables Download PDF

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Publication number
WO1982002627A1
WO1982002627A1 PCT/FR1982/000015 FR8200015W WO8202627A1 WO 1982002627 A1 WO1982002627 A1 WO 1982002627A1 FR 8200015 W FR8200015 W FR 8200015W WO 8202627 A1 WO8202627 A1 WO 8202627A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
slots
branches
conductor
electrical contact
Prior art date
Application number
PCT/FR1982/000015
Other languages
French (fr)
Inventor
Francois Robert Bonhomme
Original Assignee
Francois Robert Bonhomme
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 Francois Robert Bonhomme filed Critical Francois Robert Bonhomme
Publication of WO1982002627A1 publication Critical patent/WO1982002627A1/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
    • H01R4/2416—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
    • H01R4/2458—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 contact members being in a slotted tubular configuration, e.g. slotted tube-end
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures

Definitions

  • the present invention relates to an electrical contact of the insulation displacement type, that is to say capable of being connected to an electrical conductor surrounded by an insulator, without prior stripping.
  • the invention also relates to a method of manufacturing this contact.
  • the invention also relates to connectors comprising one or preferably a plurality of these contacts and allowing the connection of all of the connector contacts to one or more conductors or sets of insulated conductors, in particular in the form of ribbon cables, again called “ribbon cables”.
  • the invention relates more particularly to an electrical contact intended to be connected to an electrical cable which is formed of at least one conductor surrounded by an insulator, without prior removal of this insulator, which cohtact has at its front end two substantially semi-cylindrical branches surrounding a central recess of substantially cylindrical shape and separated by two diametrically opposite longitudinal slots intended to receive the conductor, these branches ending in the front by points which are capable of penetrating the insulating and converging two by two backwards to one or the other of the slots, the branches being connected to one another at the rear of the two slots.
  • the contact according to the invention is essentially characterized in that it only has two points offset circumferentially by 90 ° relative to the slots, whereby the conductor is guided towards the two slots during the penetration of the tips into the insulation.
  • each branch is provided with an external chamfer tending to oppose any deformation towards the outside and therefore any enlargement of the slots, this chamfer being able to be d 'a relatively small size because the central recess, by receiving the cut insulating material, avoids a stuffing effect and therefore a tendency to the separation of the two branches.
  • the height of the slots is such that the end of the slot opposite the points is located below the bottom of said substantially cylindrical recess. In other words, the height of the slots is less than the depth of said recess.
  • the contact tail can be made anyway to form itself, for example, a male contact or plug-in female.
  • the invention also relates to a method of manufacturing this contact, characterized in that a rigid metal rod section is used (on the scale of the contact which can be very small), which is preferably provided the turning of the end, which is preferably externally chamfered at the end of this rod, which is carried out axial drilling of the central recess to a diameter preferably slightly less than the diameter of the chamfer, which is machined the two slits and that we form the points.
  • the machining of the slots is carried out using a milling cutter while the shaping of the points, according to a plane perpendicular to the cutting plane of the slots, is carried out using a strawberry in shape, preferably with a triangular groove.
  • the subject of the invention is also a connector comprising one or preferably a plurality of contacts, characterized in that it comprises, on a connector cradle, one or more contacts according to the invention with the contact branches emerging from said cradle, the contact bearing on the cradle to remain fixed relative thereto during penetration into the insulating material.
  • the cradle which can be associated with a usual connector housing containing the non-protruding contact parts, can also be associated with a connector cover capable of receiving the wire or ribbon cable in order to apply it against the cradle and produce the penetration of the branches of the individual contacts into the insulating material.
  • Figure 1 shows an elevational view of the end of a connector according to the invention.
  • Figure 2 shows a perspective view of this end.
  • Figures 3 to 7 schematically represent the different stages of the method of manufacturing a contact according to the invention.
  • FIG. 8 represents a schematic perspective view of part of a connector comprising the contacts according to the invention.
  • FIG. 9 represents a schematic view of part of the connector when the contacts are inserted into a ribbon cable.
  • FIG. 10 represents a schematic view of the conductor clamped in the slots of a contact. reference is made to FIGS. 1 and 2.
  • the end 18. of the contact seen in these figures has, with respect to the central cylindrical part 1 of the contact, a reduced diameter so as to form a radial shoulder 2.
  • This end has two substantially semi-cylindrical branches 3 , 4 which surround a concentric cylindrical recess 5.
  • Each of the branches 3, 4 has a penetration point 6,7 the upper part of which is arranged practically in the geometric cylinder which delimits the internal cylindrical recess 5.
  • the ends 6, 7 have outwardly a changeable portion 8, 9.
  • the two sides 10, 11 located opposite one another converge back towards a longitudinal slot 14 whose bottom 15 is located above the bottom 16 of the central cylindrical recess 5.
  • the two slots 14 are produced at the same time using a saw mill 22 having the desired thickness.
  • the points 6 and 7 and the flaps 10 and 11 are produced using a milling cutter 23 having an internal groove with V section, the axis of rotation of the cutter 23 being perpendicular to the axis of rotation of the saw 22 so that the two vertices 6,7 are angularly offset by 90 ° relative to the slots 14.
  • the process thus defined can be the subject of different variants, some steps can be reversed and chamfering can be omitted.
  • it is not absolutely necessary to produce a shoulder 2 the positioning of the contact in the connector being able to be ensured in another way.
  • the machining of the rest of the contact including its tail.
  • the rest of the contact can be of any known or other form.
  • the tail of the contact can be made in the form of a male or female plug.
  • FIG. 8 schematically shows a connector comprising contacts according to the invention.
  • This connector comprises, in a manner known per se, a cradle 24 provided with a plurality of holes 25 distributed over two parallel rows, offset by a half-step relative to one another.
  • the cradle 24 is integral with a connector housing 26 provided with fixing means 27 for securing the connector cover 28.
  • the different individual contacts are inserted into the different holes 25 of the cradle 24 so that their branches 3, 4 remain visible.
  • Known type means flat, bossed or similar
  • maintain the contacts so that their slots 14 remain perpendicular to the rows of holes 25.
  • a ribbon cable 30, provided with different parallel electrical conductors 31, is disposed under the cover 28 in the configuration shown in the drawing.
  • Each lateral edge of the cable is precentered by a shoulder 32 of the cover 28 and centered by parallel ribs that the cover 28 includes and which engage in parallel grooves 36 of the ribbon cable 30.
  • FIG. 10 represents a schematic cross-sectional view of a contact at the level of the deformed conductor 31, it can be seen that the insulating material 33, surrounding the conductor 31, could have largely found its place in the inner recess 5.
  • the conductor 31 itself is deformed by being pinched in a way only when it passes through the two slots 14 in the zones 34.
  • each contact instead of being cylindrical up to the shoulder 2, could for example be frustoconical or cylindrical over most of its height by being connected to the shoulder 2 by an arched profile leave. Moreover, he it would be possible to give the slots 14 of each contact unequal widths.

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  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

An electric contact for sheet cables (30) is formed with a rod terminated by two semi-cylindrical branches (3, 4) which are provided each with a point (6, 7) to penetrate the insulating material (33). The branches (3, 4) surround a central recess, having substantially a cylindrical shape, delimiting between the branches (3, 4) two diametrally opposite longitudinal slots (14) for recciving the conductor (31).

Description

Contact électrique autodénudant, procédé de fabrication de ce contact et connecteurs comprenant ce contact, notamment pour câbles en nappe. Electrical insulation displacement contact, method of manufacturing this contact and connectors comprising this contact, in particular for ribbon cables.
La présente invention a trait à un contact électrique du type autodénudant, c'est-à-dire susceptible d'être raccordé à un conducteur électrique entouré d'un isolant, sans dénudage préalable. L'invention a aussi trait à un procédé de fabrication de ce contact. L'invention a également trait aux connecteurs comprenant un ou de préférence une pluralité de ces contacts et permettant le raccordement de l'ensemble des contacts du connecteur sur un ou plusieurs conducteurs ou ensembles de conducteurs isolés, notamment sous forme de câbles en nappe, encore appelés "câbles plats".The present invention relates to an electrical contact of the insulation displacement type, that is to say capable of being connected to an electrical conductor surrounded by an insulator, without prior stripping. The invention also relates to a method of manufacturing this contact. The invention also relates to connectors comprising one or preferably a plurality of these contacts and allowing the connection of all of the connector contacts to one or more conductors or sets of insulated conductors, in particular in the form of ribbon cables, again called "ribbon cables".
Selon l'un de ses aspects, l'invention concerne plus particulièrement un contact électrique destiné à être raccordé à un câble électrique qui est formé d'au moins un conducteur entouré d'un isolant, sans enlèvement préalable de cet isolant, lequel cohtact présente à son extrémité avant deux branches sensiblement semi-cylindriques entourant un évidement central de forme sensiblement cylindrique et séparées par deux fentes longitudinales diamétralement opposées destinées à recevoir le conducteur, ces branches se terminant vers l'avant par des pointes qui sont capables de pénétrer dans l'isolant et qui convergent deux par deux vers l'arrière jusqu'à l'une ou l'autre des fentes, les branches étant reliées l'une à l'autre à l'arrière des deux fentes.According to one of its aspects, the invention relates more particularly to an electrical contact intended to be connected to an electrical cable which is formed of at least one conductor surrounded by an insulator, without prior removal of this insulator, which cohtact has at its front end two substantially semi-cylindrical branches surrounding a central recess of substantially cylindrical shape and separated by two diametrically opposite longitudinal slots intended to receive the conductor, these branches ending in the front by points which are capable of penetrating the insulating and converging two by two backwards to one or the other of the slots, the branches being connected to one another at the rear of the two slots.
Un tel contact électrique est décrit dans le JP-A-51-119991 (figures 7 et 8). Le contact électrique révélé par ce document comporte quatre pointes qui bordent deux à deux les fentes. De part et d'autre de chaque fente, les pointes voisines convergent l'une vers l'autre par l'intermédiaire d'un biseau très peu profond. Cette construction a pour inconvénient que, lors de l'enfoncement du contact dans l'isolant du câble électrique, le conducteur de celui-ci risque d'être dévié hors de la fente et de ne toucher le contact que par la surface extérieure de celui-ci, c'est-à-dire dans de très mauvaises conditions.Such an electrical contact is described in JP-A-51-119991 (Figures 7 and 8). The electrical contact revealed by this document has four tips which line the slots two by two. On either side of each slot, the neighboring points converge towards one another by means of a very shallow bevel. This construction has the drawback that, when the contact is inserted into the insulator of the electric cable, the conductor of the latter risks being deflected out of the slot and touching the contact only through the external surface of that -this, that is to say in very bad conditions.
Pour remédier à cet inconvénient, le contact conforme à l'invention est essentiellement caractérisé en ce qu'il ne comporte que deux pointes décalées circonférentiellement de 90° par rapport aux fentes, ce grâce à quoi le conducteur est guidé vers les deux fentes lors de la pénétration des pointes dans l'isolant.To overcome this drawback, the contact according to the invention is essentially characterized in that it only has two points offset circumferentially by 90 ° relative to the slots, whereby the conductor is guided towards the two slots during the penetration of the tips into the insulation.
De façon particulièrement préférée, l'extrémité de chaque branche, au niveau de la pointe, est munie d'un chanfrein extérieur tendant à s'opposer à toute déformation vers l'extérieur et donc à tout agrandissement des fentes, ce chanfrein pouvant être d'une taille relativement réduite du fait que l' évidement central, en accueillant la matière isolante découpée, évite un effet de bourrage et par conséquent une tendance à l'écartement des deux branches. De préférence, la hauteur des fentes est telle que l'extrémité de la fente opposée aux pointes est située en deçà du fond dudit évidement sensiblement cylindrique. En d'autres termes, la hauteur des fentes est inférieure à la profondeur dudit évidement. La queue de contact peut être réalisée de toute façon pour former elle-même, par exemple, un contact mâle ou femelle enfichable.In a particularly preferred manner, the end of each branch, at the point, is provided with an external chamfer tending to oppose any deformation towards the outside and therefore any enlargement of the slots, this chamfer being able to be d 'a relatively small size because the central recess, by receiving the cut insulating material, avoids a stuffing effect and therefore a tendency to the separation of the two branches. Preferably, the height of the slots is such that the end of the slot opposite the points is located below the bottom of said substantially cylindrical recess. In other words, the height of the slots is less than the depth of said recess. The contact tail can be made anyway to form itself, for example, a male contact or plug-in female.
L'invention a également pour objet un procédé de fabrication de ce contact, caractérisé en ce que l'on utilise un tronçon de tige métallique rigide (à l'échelle du contact qui peut être de très petite dimension), dont on assure de préférence le décolletage de l'extrémité, que de préférence on chanfreine extérieurement l'extrémité de cette tige, que l'on effectue le perçage axial de l' évidement central à un diamètre de préférence légèrement inférieur au diamètre du chanfrein, que l'on usine les deux fentes et que l'on forme les pointes.The invention also relates to a method of manufacturing this contact, characterized in that a rigid metal rod section is used (on the scale of the contact which can be very small), which is preferably provided the turning of the end, which is preferably externally chamfered at the end of this rod, which is carried out axial drilling of the central recess to a diameter preferably slightly less than the diameter of the chamfer, which is machined the two slits and that we form the points.
De préférence, l'usinage des fentes est effectué à l'aide d'une fraise-scie alors que la mise en forme des pointes, selon un plan perpendiculaire au plan de découpage des fentes, s'effectue à l'aide d'une fraise de forme, présentant une gorge de préférence triangulaire.Preferably, the machining of the slots is carried out using a milling cutter while the shaping of the points, according to a plane perpendicular to the cutting plane of the slots, is carried out using a strawberry in shape, preferably with a triangular groove.
L'invention a également pour objet un connecteur comprenant un ou de préférence une pluralité de contacts, caractérisé en ce qu'il comporte, sur un berceau de connecteur, un ou plusieurs contacts selon l'invention avec les branches de contact émergeant dudit berceau, le contact prenant appui sur le berceau pour rester fixe par rapport à celui-ci lors de la pénétration dans la matière isolante. Le berceau, qui peut être associé à un boîtier usuel de connecteur contenant les parties non dépassantes de contact, .peut également être associé à un couvercle de connecteur susceptible de recevoir le fil ou le câble en nappe pour l'appliquer contre le berceau et réaliser la pénétration des branches des différents contacts individuels dans la matière isolante.The subject of the invention is also a connector comprising one or preferably a plurality of contacts, characterized in that it comprises, on a connector cradle, one or more contacts according to the invention with the contact branches emerging from said cradle, the contact bearing on the cradle to remain fixed relative thereto during penetration into the insulating material. The cradle, which can be associated with a usual connector housing containing the non-protruding contact parts, can also be associated with a connector cover capable of receiving the wire or ribbon cable in order to apply it against the cradle and produce the penetration of the branches of the individual contacts into the insulating material.
D'autres avantages et caractéristiques de l'invention apparaîtront à la lecture de la description suivante, faite à titre d'exemple non limitatif et se référant aux dessins annexés dans lesquels :Other advantages and characteristics of the invention will appear on reading the following description, given by way of nonlimiting example and referring to the appended drawings in which:
La figure 1 représente une vue en élévation de l'extrémité d'un connecteur selon l'invention.Figure 1 shows an elevational view of the end of a connector according to the invention.
La figure 2 représente une vue en perspective de cette extrémité.Figure 2 shows a perspective view of this end.
Les figures 3 à 7 représentent schématiquement les différentes étapes du procédé de fabrication d'un contact selon l'invention.Figures 3 to 7 schematically represent the different stages of the method of manufacturing a contact according to the invention.
La figure 8 représente une vue schématique en perspective d'une partie d'un connecteur comprenant les contacts selon l'invention. La figure 9 représente une vue schématique d'une partie du connecteur lors de l'enfoncement des contacts dans un câble en nappe.FIG. 8 represents a schematic perspective view of part of a connector comprising the contacts according to the invention. FIG. 9 represents a schematic view of part of the connector when the contacts are inserted into a ribbon cable.
La figure 10 représente une vue schématique du conducteur serré dans les fentes d'un contact. on se réfère aux figures 1 et 2.FIG. 10 represents a schematic view of the conductor clamped in the slots of a contact. reference is made to FIGS. 1 and 2.
L'extrémité 18. du contact que l'on voit sur ces figures présente, par rapport à la partie centrale cylindrique 1 du contact, un diamètre réduit de façon à former un épaulement radial 2. Cette extrémité présente deux branches sensiblement semi-cylindriques 3,4 qui entourent un évidement cylindrique concentrique 5. Chacune des branches 3, 4 possède une pointe de pénétration 6,7 dont la partie supérieure est disposée pratiquement dans le cylindre géométrique qui délimite l'évidement cylindrique interne 5. Les extrémités 6, 7 présentent vers l'extérieur une partie chanf rεinée 8 , 9 . Par ailleurs , depuis l ' extrémité 6 de la branche 3, s 'étendent en retrait deux pans 10 auxquels correspondent des pans 11 sur la branche 4. Les pans 10, comme on le voit sur le dessin, de même que les pans 11, présentent une inclinaison telle que, vue dans la direction longitudinale du contact, l'arête supérieure 12, qui constitue l'intersection du pan 10 avec la surface cylindrique interne de l'évidement 5, se trouve disposée constamment au-dessus de l'arête 13, qui constitue l'intersection du pan 10 avec la surface cylindrique extérieure de la branche 3. Les deux pans 10, 11 situés en face l'un de l'autre convergent en retrait vers une fente longitudinale 14 dont le fond 15 est situé au-dessus du fond 16 de l' évidement central cylindrique 5. Pour fabriquer un contact ainsi décrit, on voit, en se reportant aux figures 3 à 7, les différentes étapes du procédé utilisé.The end 18. of the contact seen in these figures has, with respect to the central cylindrical part 1 of the contact, a reduced diameter so as to form a radial shoulder 2. This end has two substantially semi-cylindrical branches 3 , 4 which surround a concentric cylindrical recess 5. Each of the branches 3, 4 has a penetration point 6,7 the upper part of which is arranged practically in the geometric cylinder which delimits the internal cylindrical recess 5. The ends 6, 7 have outwardly a changeable portion 8, 9. Furthermore, from the end 6 of the branch 3, extend in retreat two sections 10 to which correspond sections 11 on the branch 4. The sections 10, as can be seen in the drawing, as well as the sections 11, have an inclination such that, seen in the longitudinal direction of contact, the upper edge 12, which constitutes the intersection of the face 10 with the internal cylindrical surface of the recess 5, is constantly arranged above the edge 13, which constitutes the intersection of the pan 10 with the external cylindrical surface of the branch 3. The two sides 10, 11 located opposite one another converge back towards a longitudinal slot 14 whose bottom 15 is located above the bottom 16 of the central cylindrical recess 5. To make a contact thus described , we see, referring to Figures 3 to 7, the different steps of the method used.
On part d'un tronçon de tige métallique conductrice usuelle pour réaliser le contact, en métal à ressort ou non, ayant le diamètre de la partie 1. A l'aide d'un tour schématiquement représenté par son outil 17, on réalise un décolletage de l'extrémité 18 de la tige de façon à en réduire le diamètre et réaliser l'épaulement 2 (figure 3). On réalise ensuite sur le tour un chanfrein 19 à l'extrémité de la partie rétrécie 18, grâce à un outil à chanfreiner 20 (figure 4).We start from a usual conductive metal rod section to make the contact, made of spring metal or not, having the diameter of the part 1. With the help of a lathe schematically represented by its tool 17, we perform a turning from the end 18 of the rod so as to reduce the diameter and make the shoulder 2 (Figure 3). A chamfer 19 is then produced on the lathe at the end of the narrowed part 18, using a chamfering tool 20 (FIG. 4).
En se référant ensuite à la figure 5, on voit que l'on effectue le perçage, à l'aide d'un outil de perçage usuel 21, de l'évidement cylindrique interne 5.Referring next to FIG. 5, it can be seen that the drilling is carried out, using a conventional drilling tool 21, of the internal cylindrical recess 5.
Ensuite, comme on le voit sur la figure 6, on réalise en un seul temps les deux fentes 14 à l'aide d'une fraise-scie 22 ayant l'épaisseur voulue.Then, as can be seen in FIG. 6, the two slots 14 are produced at the same time using a saw mill 22 having the desired thickness.
Enfin, comme on le voit sur la figure 7, on réalise les pointes 6 et 7 et les pans 10 et 11 à l'aide d'une fraise de forme 23 ayant une gorge interne à section en V, l'axe de rotation de la fraise 23 étant perpendiculaire à l' axe de rotation de la scie 22 de façon que les deux sommets 6,7 soient angulairement décalés de 90° par rapport aux fentes 14. Bien entendu, le procédé ainsi défini peut faire l'objet de différentes variantes, certaines étapes pouvant être interverties et le chanfreinage pouvant être éventuellement omis. De même, il n'est pas absolument nécessaire de réaliser un épaulement 2, le positionnement du contact dans le connecteur pouvant être assuré d'une autre façon.Finally, as can be seen in FIG. 7, the points 6 and 7 and the flaps 10 and 11 are produced using a milling cutter 23 having an internal groove with V section, the axis of rotation of the cutter 23 being perpendicular to the axis of rotation of the saw 22 so that the two vertices 6,7 are angularly offset by 90 ° relative to the slots 14. Of course, the process thus defined can be the subject of different variants, some steps can be reversed and chamfering can be omitted. Likewise, it is not absolutely necessary to produce a shoulder 2, the positioning of the contact in the connector being able to be ensured in another way.
Par ailleurs, on n'a pas représenté l'usinage du reste du contact, y compris de sa queue. Le reste du contact peut être de toute forme connue ou autre. La queue du contact peut être réalisée sous forme de fiche mâle ou femelle. On se réfère maintenant aux figures 8 à 10.Furthermore, the machining of the rest of the contact, including its tail. The rest of the contact can be of any known or other form. The tail of the contact can be made in the form of a male or female plug. We now refer to Figures 8 to 10.
On a représenté schématiquement à la figure 8 un connecteur comprenant des contacts selon l'invention.FIG. 8 schematically shows a connector comprising contacts according to the invention.
Ce connecteur comporte, d'une façon en soi connue, un berceau 24 muni d'une pluralité de trous 25 répartis sur deux rangées parallèles, décalées d'un demi-pas l'une par rapport à l'autre. Le berceau 24 est solidaire d'un boîtier de connecteur 26 muni de moyens de fixation 27 pour l'assujettissement du couvercle 28 de connecteur. Les différents contacts individuels sont insérés dans les différents trous 25 du berceau 24 de façon que leurs branches 3, 4 restent apparentes. Des moyens de type connu (à méplat, à bossage ou semblables), maintiennent les contacts de façon telle que leurs fentes 14 restent perpendiculaires aux rangées de trous 25. On voit en 29 apparaître la queue, sous forme de fiche mâle, de l'un des contacts 3,4. un câble en nappe 30, muni de différents conducteurs électriques parallèles 31, est disposé sous le couvercle 28 dans la configuration représentée sur le dessin. Chaque bord latéral du câble est précentré par un épaulement 32 du couvercle 28 et centré par des nervures parallèles que comprend le couvercle 28 et qui s'engagent dans des rainures parallèles 36 du câble en nappe 30. Il en résulte que, lorsque l'on viendra appliquer le couvercle 28 sur le berceau 24, les différents conducteurs 31, qui sont séparés les uns des autres par la moitié du pas de deux trous 25 consécutifs de la même rangée, viendront se disposer au-dessus des contacts 3, 4, chaque conducteur 31 étant ainsi associé à uη seul contact.This connector comprises, in a manner known per se, a cradle 24 provided with a plurality of holes 25 distributed over two parallel rows, offset by a half-step relative to one another. The cradle 24 is integral with a connector housing 26 provided with fixing means 27 for securing the connector cover 28. The different individual contacts are inserted into the different holes 25 of the cradle 24 so that their branches 3, 4 remain visible. Known type means (flat, bossed or similar) maintain the contacts so that their slots 14 remain perpendicular to the rows of holes 25. We see at 29 appear the tail, in the form of male plug, one of the contacts 3,4. a ribbon cable 30, provided with different parallel electrical conductors 31, is disposed under the cover 28 in the configuration shown in the drawing. Each lateral edge of the cable is precentered by a shoulder 32 of the cover 28 and centered by parallel ribs that the cover 28 includes and which engage in parallel grooves 36 of the ribbon cable 30. As a result, when will apply the cover 28 on the cradle 24, the various conductors 31, which are separated from each other by half the pitch of two consecutive holes 25 of the same row, will be placed above the contacts 3, 4, each conductor 31 thus being associated with uη single contact.
Lorsque le couvercle 28 a été mis en place sur le connecteur, des plots 35, portés en saillie par ce couvercle, ont pénétré respectivement dans les évidements cylindriques 5 des différents contacts et les différentes branches 3, 4 de ceux-ci ont perforé et traversé la matière isolante 33 de la nappe de câble, les pointes 6, 7 émergeant de l'autre côté de la nappe 30. Lors du mouvement de pénétration des branches 3, 4 d'un contact dans la matière isolante, cette matière est refoulée sans bourrage à l' intérieur de l' évidement intérieur 5 et, à mesure que le cohtact s'enfonce dans la matière isolante, le conducteur 31, par exemple à sept torons, est guidé par les arêtes 12 et progressivement déformé pour venir s'enfoncer dans les deux fentes 14 comme représenté sur la figure 9. Dans cette position, les bords des fentes 14 assurent un contact électrique parfait entre les branches 3,4 et le conducteur 31.When the cover 28 has been put in place on the connector, studs 35, projecting by this cover, have respectively penetrated into the cylindrical recesses 5 of the different contacts and the different branches 3, 4 of these have perforated and passed through the insulating material 33 of the cable ply, the points 6, 7 emerging from the other side of the ply 30. During the movement of penetration of the branches 3, 4 of a contact in the insulating material, this material is pushed back without jamming inside the interior recess 5 and, as the cohtact sinks into the insulating material, the conductor 31, for example with seven strands, is guided by the edges 12 and progressively deformed to sink into the two slots 14 as shown in the figure 9. In this position, the edges of the slots 14 ensure perfect electrical contact between the branches 3, 4 and the conductor 31.
En se référant plus particulièrement à la figure 10 qui représente une vue schématique en section transversale d'un contact au niveau du conducteur 31 déformé, on voit que la matière isolante 33, entourant le conducteur 31, a pu largement trouver sa place dans l'évidement intérieur 5. Le conducteur 31 lui-même est déformé en étant en quelque sorte pincé uniquement lors de son passage à travers les deux fentes 14 dans les zones 34.Referring more particularly to FIG. 10 which represents a schematic cross-sectional view of a contact at the level of the deformed conductor 31, it can be seen that the insulating material 33, surrounding the conductor 31, could have largely found its place in the inner recess 5. The conductor 31 itself is deformed by being pinched in a way only when it passes through the two slots 14 in the zones 34.
Bien que l'invention ait été décrite à propos d'une forme de réalisation particulière, il est bien entendu qu'elle n'y est nullement limitée et qu'on peut lui apporter diverses modifications de forme ou de matériaux sans pour cela s'éloigner ni de son cadre ni de son esprit.Although the invention has been described in connection with a particular embodiment, it is understood that it is in no way limited thereto and that it can be made to it in various modifications of shape or of materials without thereby move away neither from its frame nor from its spirit.
Il est à noter qur l'extrémité 18 de chaque contact, au lieu d'être cylindrique jusqu'à l' épaulement 2, pourrait être par exemple tronconique ou cylindrique sur la majeure partie de sa hauteur en étant raccordée à l' épaulement 2 par un congé à profil arqué. De plus, il serait possible de donner aux fentes 14 de chaque contact des largeurs inégales. It should be noted that the end 18 of each contact, instead of being cylindrical up to the shoulder 2, could for example be frustoconical or cylindrical over most of its height by being connected to the shoulder 2 by an arched profile leave. Moreover, he it would be possible to give the slots 14 of each contact unequal widths.

Claims

REVENDICATIONS 1. Contact électrique destiné à être raccordé à un câble électrique qui est formé d'au moins un conducteur (31) entouré d'un isolant (33), sans enlèvement préalable de cet isolant (33), lequel contact présente à son extrémité avant deux branches sensiblement semi-cylindriques (3,4) entourant un évidement central (5) de forme sensiblement cylindrique et séparées par deux fentes longitudinales diamétralement, opposées (14) destinées à recevoir le conducteur (31), ces branches (3,4) se terminant vers l'avant par des pointes (6,7) qui sont capables de pénétrer dans l'isolant (33) et qui convergent deux par deux vers l'arrière jusqu'à l'une ou l'autre des fentes (14), les branches (3,4) étant reliées l'une à l'autre à l'arrière des deux fentes (14), caractérisé en ce qu'il ne comporte que deux pointes (6,7) décalées circonférentiellement de 90° par rapport aux fentes (14), ce grâce à quoi le conducteur (31) est guidé vers les deux fentes (14) lors de la pénétration des pointes (6,7) dans l'isolant (33).CLAIMS 1. Electrical contact intended to be connected to an electrical cable which is formed of at least one conductor (31) surrounded by an insulator (33), without prior removal of this insulator (33), which contact present at its end before two substantially semi-cylindrical branches (3,4) surrounding a central recess (5) of substantially cylindrical shape and separated by two diametrically opposite longitudinal slots (14) intended to receive the conductor (31), these branches (3,4 ) terminating forwards by points (6,7) which are capable of penetrating into the insulation (33) and which converge two by two backwards to one or the other of the slots ( 14), the branches (3,4) being connected to one another at the rear of the two slots (14), characterized in that it only has two points (6,7) offset circumferentially by 90 ° relative to the slots (14), whereby the conductor (31) is guided towards the two slots es (14) during penetration of the tips (6,7) into the insulation (33).
2. Contact électrique selon la revendication 1, caractérisé en ce que l'extrémité de chaque branche (3,4), au niveau de la pointe (6,7), est munie d'un chanfrein extérieur (8,9) tendant à s'opposer à la déformation du contact vers l'extérieur.2. Electrical contact according to claim 1, characterized in that the end of each branch (3,4), at the point (6,7), is provided with an external chamfer (8,9) tending to oppose the deformation of the contact to the outside.
3. Contact électrique selon l'une des revendications 1 et 2, caractérisé en ce que la hauteur des fentes (14) est telle que l'extrémité (15) de la fente opposée aux pointes (6,7) est située en deçà du fond (16) dudit évidement central (5).3. Electrical contact according to one of claims 1 and 2, characterized in that the height of the slots (14) is such that the end (15) of the slot opposite the points (6,7) is located below the bottom (16) of said central recess (5).
4. Contact électrique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que chaque branche (3,4) possède, de part et d'autre de la pointe (6,7), deux pans (10) s'étendant vers l'arrière jusqu'à la fente correspondante (14), l'arête d'intersection (12) de chaque pan (10) avec la surface interne dudit évidement (5) étant située à un niveau supérieur plus proche du sommet de la pointe correspondante (6,7) que l'arête opposée (13) formant l'intersection dudit pan (10) avec la surface semicylindrique extérieurede la branche (3,4). 4. Electrical contact according to any one of claims 1 to 3, characterized in that each branch (3,4) has, on either side of the tip (6,7), two sides (10) s' extending rearward to the corresponding slot (14), the intersection edge (12) of each panel (10) with the internal surface of said recess (5) being located at a higher level closer to the top of the corresponding point (6,7) than the opposite edge (13) forming the intersection of said face (10) with the external semi-cylindrical surface of the branch (3,4).
5. Procédé de fabrication d'un contact électrique selon l'une quelconque. des revendications 1 à 4, caractérisé en ce qu'on utilise un tronçon de tige métallique, que l'on effectue le perçage axial de l' évidement central (5), que l'on usine les deux fentes (14) et que l'on forme les pointes. (6,7).5. Method for manufacturing an electrical contact according to any one. of claims 1 to 4, characterized in that a section of metal rod is used, that the central recess (5) is drilled axially, that the two slots (14) are machined and that the 'we form the tips. (6.7).
6. Procédé selon la revendication 5, caractérisé en ce que l' on effectue un chanfreinage (19) de l' extrémité du tronçon et que l'on effectue le perçage axial de l'évidement central (5) à un diamètre légèrement inférieur au diamètre du chanfrein (19).6. Method according to claim 5, characterized in that one carries out a chamfering (19) of the end of the section and that one carries out the axial drilling of the central recess (5) to a diameter slightly less than bevel diameter (19).
7. Connecteur, notamment pour câbles en nappe, caractérisé en ce qu' il comprend au moins un contact selon l'une quelconque des revendications 1 à 4, sur un berceau de connecteur (24) de façon que les deux branches (3,4) du connecteur émergent dudit berceau (24). 7. Connector, in particular for ribbon cables, characterized in that it comprises at least one contact according to any one of claims 1 to 4, on a connector cradle (24) so that the two branches (3,4 ) of the connector emerging from said cradle (24).
PCT/FR1982/000015 1981-01-28 1982-01-25 Self stripping electric contact,process for manufacturing such contact and connectors compresing such contact,paticularly for sheet cables WO1982002627A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8101588A FR2498822A1 (en) 1981-01-28 1981-01-28 SELF-CONDUCTING ELECTRICAL CONTACT, METHOD FOR MANUFACTURING THIS CONTACT AND CONNECTORS INCLUDING THIS CONTACT, IN PARTICULAR FOR TABLECLOTH CABLES
FR8101588810128 1981-01-28

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WO1982002627A1 true WO1982002627A1 (en) 1982-08-05

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PCT/FR1982/000015 WO1982002627A1 (en) 1981-01-28 1982-01-25 Self stripping electric contact,process for manufacturing such contact and connectors compresing such contact,paticularly for sheet cables

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EP (1) EP0057633A1 (en)
JP (1) JPS57502235A (en)
CA (1) CA1184982A (en)
DK (1) DK36282A (en)
ES (1) ES271040Y (en)
FR (1) FR2498822A1 (en)
WO (1) WO1982002627A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2592743A1 (en) * 1986-01-08 1987-07-10 Allied Corp Electrical connection terminal having a blind barrel and its manufacturing process
FR2661565B1 (en) * 1990-04-26 1992-07-10 Sofycom METHOD FOR MANUFACTURING A SELF-CONDUCTING TUBULAR SLOTTED PLUG FOR TELEPHONE CONNECTION DEVICE.
DE4222685C2 (en) * 1992-07-10 1995-08-10 Hirschmann Richard Gmbh Co Plug contact element
DE29710304U1 (en) * 1997-06-12 1997-08-21 Siemens AG, 80333 München Connection device for coaxial cables
DE102009050569B4 (en) * 2009-08-10 2011-09-22 Willy Kreutz Gmbh & Co. Kg Contact pin for use on lighting means and method for its production
CN102969591B (en) * 2012-11-12 2015-04-29 中航光电科技股份有限公司 Self-stripping wire electric coupler and contact piece thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2651768A (en) * 1947-04-02 1953-09-08 Oortgijsen Jan Electrical terminal having conductor-severing edge
GB1428359A (en) * 1971-12-21 1976-03-17 Communications Patents Ltd Electrical connectors
FR2282730A1 (en) * 1974-08-22 1976-03-19 Thomas & Betts Corp PERFECTED ELECTRICAL CONTACT
JPS51119991A (en) * 1975-04-15 1976-10-20 Daiichi Denshi Kogyo Kk Connecting end
GB2026255A (en) * 1978-06-24 1980-01-30 Bunker Ramo Electrical contact
CH616533A5 (en) * 1976-08-17 1980-03-31 Gerhard Mueller Connecting post for insulating wires for electrical wiring of devices or parts of devices, particularly in mainly flat construction
US4210378A (en) * 1979-04-23 1980-07-01 Minnesota Mining And Manufacturing Company Electrical wire connection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378390A1 (en) * 1977-01-21 1978-08-18 Muller Gerhard Multiwire circuit connection post - with assembly simplified by stripping insulation when pushing wires through slot contractions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2651768A (en) * 1947-04-02 1953-09-08 Oortgijsen Jan Electrical terminal having conductor-severing edge
GB1428359A (en) * 1971-12-21 1976-03-17 Communications Patents Ltd Electrical connectors
FR2282730A1 (en) * 1974-08-22 1976-03-19 Thomas & Betts Corp PERFECTED ELECTRICAL CONTACT
JPS51119991A (en) * 1975-04-15 1976-10-20 Daiichi Denshi Kogyo Kk Connecting end
CH616533A5 (en) * 1976-08-17 1980-03-31 Gerhard Mueller Connecting post for insulating wires for electrical wiring of devices or parts of devices, particularly in mainly flat construction
GB2026255A (en) * 1978-06-24 1980-01-30 Bunker Ramo Electrical contact
US4210378A (en) * 1979-04-23 1980-07-01 Minnesota Mining And Manufacturing Company Electrical wire connection

Also Published As

Publication number Publication date
EP0057633A1 (en) 1982-08-11
FR2498822B1 (en) 1984-05-11
CA1184982A (en) 1985-04-02
JPS57502235A (en) 1982-12-16
ES271040Y (en) 1984-05-01
ES271040U (en) 1983-09-01
DK36282A (en) 1982-07-29
FR2498822A1 (en) 1982-07-30

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