EP0265321A1 - Slotted connecting arrangement for an electrical cable, and connecting tool therefor - Google Patents

Slotted connecting arrangement for an electrical cable, and connecting tool therefor Download PDF

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Publication number
EP0265321A1
EP0265321A1 EP87402245A EP87402245A EP0265321A1 EP 0265321 A1 EP0265321 A1 EP 0265321A1 EP 87402245 A EP87402245 A EP 87402245A EP 87402245 A EP87402245 A EP 87402245A EP 0265321 A1 EP0265321 A1 EP 0265321A1
Authority
EP
European Patent Office
Prior art keywords
tool
blade
connection
housing
orifice
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87402245A
Other languages
German (de)
French (fr)
Other versions
EP0265321B1 (en
Inventor
Jean-Paul Heng
Ariel Ruiz
Alain Boissonnet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB France SAS
Original Assignee
Cegelec SA
Entrelec SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cegelec SA, Entrelec SAS filed Critical Cegelec SA
Publication of EP0265321A1 publication Critical patent/EP0265321A1/en
Application granted granted Critical
Publication of EP0265321B1 publication Critical patent/EP0265321B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/01—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting unstripped conductors to contact members having insulation cutting edges
    • H01R43/015—Handtools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y10T29/49181—Assembling terminal to elongated conductor by deforming
    • Y10T29/49185—Assembling terminal to elongated conductor by deforming of terminal
    • Y10T29/49192—Assembling terminal to elongated conductor by deforming of terminal with insulation removal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • Y10T29/53213—Assembled to wire-type conductor

Definitions

  • the present invention relates to a connection arrangement with stripping and wire retaining slot for one or more electric wires and a tool intended to ensure the connection of the wires in such arrangements.
  • connection arrangements are usually used to connect wires to one another in junction block type members or to connect wires to electrical equipment.
  • each connection arrangement comprises a stripping and wire retaining slot made in a conductive piece of small thickness, the slot is provided, at one of its ends, with a flared mouth intended to facilitate longitudinal insertion into the slit of a wire to be connected arranged transversely and simultaneously ensuring a cross section of the insulation sheathing this wire.
  • the core of the wire locally stripped by the slit mouth, comes into contact with the edges of this slit which immobilize it by their pressure and which simultaneously provide electrical continuity between the wire and the conductive part, the insulating sheath of the wire is simultaneously wedged between the edges of a sheath wedging opening which extends facing the stripping and holding slot in an insulating housing where the conductive part is generally housed.
  • connection of a wire to such an arrangement requires the application of a reinforcing force on the wire which most often involves the use of a reduction tool, which is most often desired to be simple, by example a lever.
  • the present invention provides on the one hand a slotted connection arrangement for an electric wire in which at least one conductive connection piece is immobilized in an insulating housing provided with at least one opening extending opposite a wire stripping and retaining slot, which provides the electrical connection and which is formed along a wall of said connection piece, said opening allowing the insertion of a wire, to be connected transversely above of a stripped mouth of the slot as well as the subsequent immobilization of the wire by its insulating sheath.
  • the housing provided with at least one insertion orifice for a rigid and mobile blade for inserting an external tool which is intended to slide along the slot during the insertion of 'a wire, is also provided with a tool positioning device, by introduction hole, which is formed for a projection in the center of which is formed the considered introduction hole and on which comes to be embedded by translation a tool end comprising said insertion blade, the insertion orifice being internally provided with hooking flanges for mobile fixing elements carried by the tool end which are capable of penetrating into the orifice of introduction prior to the insertion blade to hang on the edges by immobilizing the tool relative to the insulating housing, upon actuation of this insertion blade.
  • connection tool provided with a rigid wire insertion blade which is movable in a guide duct between a position for which this blade is retracted inside the duct in the tool and a position for which it sits at one of its ends outside the tool, as well as means for placing the tool, on an insulating housing of a connection arrangement, in the operating position above an insertion orifice insertion blade of said housing.
  • the connection tool comprises an end of the insertion blade outlet arranged to be embedded externally by translation on a housing projection in the center of which is a blade insertion orifice, said end being centrally provided with two flexible blades secured in the conduit on either side of the insertion blade which slides between them, these two flexible blades projecting identically out of the duct outside the tool, each by a bead-shaped end, so that said beads, elastically brought towards one another by the blades which comprise them in a position allowing their introduction into a orifice, are spaced from each other by the projection of the insertion blade out of the tool and are consequently able to come to be caught under hooking flanges formed internally in the orifice.
  • introduction considered, immobilizing the tool in the operating position on the housing as long as the insertion blade is not retracted.
  • the slotted connection arrangement according to the invention is intended to be integrated into electrical equipment 1 of the organ or appliance type for ensuring the electrical connection of one or more wires 2 to this equipment.
  • the electrical equipment is a terminal block of which only one half has been shown in FIG. 2, the other half being symmetrical along a median plane of trace XX ⁇ considered to be perpendicular to the plane of the drawing.
  • each connection arrangement comprises a conductive connection piece 3 capable of receiving at least one and possibly several wires in parallel.
  • the conductive part 3 of a connection arrangement is capable of being electrically connected to another conductive part of the block, by means of a contactor member capable of coming to be pressed against an appropriate stud 4 of the conductive part 3, the other part and the contactor member not being shown here.
  • the conductive part 3 is also capable of being directly connected by its base to an analogous part mounted symmetrically with respect to it as is conventional in many terminal blocks.
  • the common bar uniting the parts by their base then no longer has stud 4.
  • the part 3 is immobilized in a housing 50 provided for this purpose in an insulating box 5 which contains at least partially and here totally the electrical equipment 1.
  • This insulating box 5 is for example constituted by assembling two complementary half-shells, which are for example made integral by ultrasonic welding after introduction of the internal members which they must contain, such as the conductive parts 3 and the contactor member.
  • the two half-shells have a joint plane which corresponds to the median longitudinal plane of trace Y-Y ⁇ .
  • Each conductive part 3 has a stripping and retaining slot 30 for the cores 20 of the wires 2 to be connected - FIG. 1 - this slot being here rectilinear and opening by a stripping mouth 34 at one of its ends.
  • the slot 30 is formed along a wall of a profiled part of the part 3, the latter being obtained, from a flat blank, by a stamping causing its cutting, its folding and possibly localized thinning.
  • the profiled part of the part 3 has for example a hollow polygonal cross section which here corresponds to a U whose free ends have been obliquely and also folded towards one another, as seen in FIG. 4.
  • the profiled part thus obtained comprises two end folds 31 corresponding to the obliquely folded free ends mentioned above. These two folds border the slot 30 which they delimit and they are here externally thinned towards this slot.
  • the two parallel walls 32 which each carry a fold 31, participate in the immobilization of the part 3 in its housing 50 together with the bottom wall 33 to which they are perpendicularly oriented.
  • the stripped mouth 34 of the conductive part 3 is obtained by symmetrical oblique cutting of the pleats 31 at one of their two ends, this oblique cutting makes it possible to obtain a flared mouth.
  • this oblique cutting makes it possible to obtain a flared mouth.
  • the subsequent folding of the folds 31, with respect to the walls 32 which carry them creates an upper edge sufficient to start the sheath 21 of the wires 2 pushed into this mouth.
  • the folds 31, the parallel walls 32 and the bottom wall 33 delimit a cavity which is made open to the outside of the housing 5 by an orifice 51, said to introduce the tool blade, formed in this housing 5 near the stripping mouth 34, orthogonally to the latter and here at the top on the block shown in FIG. 20.
  • Port 51 opens here in the central zone of a device for positioning a tool constituted by a projection 52 formed at the upper part of the housing 5 in FIG. 2.
  • This projection 52 here has a rectangular shape and has at its center the orifice 51, which is itself rectangular in shape -figure 3 -.
  • the orifice 51 is arranged so as to release an access for a blade 60 of a connection tool 6 - FIG. 2 - in the housing 5, that is here in the slot 30 and on either side of the folds 31, c that is to say inside and outside of the profiled part.
  • connection 6 At least two of the sides of the orifice 51 of rectangular shape, here the longitudinal edges, are furnished with flanges 53 which delimit the width of the orifice at the top of the projection 52 and which are intended to allow the attachment of the tool. connection 6.
  • the latter is provided for this purpose with swollen ends 61 carried by flexible blades 62 and constituting mobile elements for fixing the tool to the housing.
  • the housing 5 is also provided with an opening which extends opposite the slot 30 to allow the successive insertion of the wires 2 transversely above the stripped mouth 34 and the jamming of the sheaths 21 of these wires. one above the other simultaneously with the wedging of their cores 20 in the slot 30.
  • the opening here has a cylindrical hole 54 through which it is possible to axially reinforce a wire above the stripping mouth 34 and in abutment at the bottom of the housing 50, beyond the stripping mouth 34 of the conductive part 3.
  • the cylindrical hole 54 communicates with a rectilinear opening 55 which opens at its lower part in FIG. 1 and which extends in line with the slot 30 when the conductive part 3 is in place.
  • the rectilinear light 55 is intended to ensure the retention of the sheaths 21 of the connected wires 2, it therefore has a width slightly less than the diameter of the smallest of the sheaths provided and includes bosses 80 produced under the cylindrical hole 54 in the rectilinear light for prevent the ascent of a wire blocked by its sheath in the rectilinear opening, towards this cylindrical hole 54.
  • a second hole 56 is formed in the housing 5 at the other end of the rectilinear lumen 55 relative to the hole 54, it opens under its slot 30 of the conductive part 3 to allow the withdrawal of a wire previously connected by wedging its core 20 in this slot 30.
  • the rectilinear opening 55 closes flush with the base of the connection piece and does not have a second hole.
  • Two auxiliary lights 57 laterally border the rectilinear light 55 so as to allow the deformation of the zones of the housing 5 which ensure the jamming of the sheaths, without for this reason the external dimensions of the housing being modified when the sheaths are immobilized there.
  • connection tool 6 comprises, as we have seen, a rigid blade 60 for wire insertion sketched in FIGS. 2 and 4 and specified in FIGS. 6 to 8.
  • This insertion blade 60 is intended to come insert itself through the hole 51 for introducing the tool into the housing 50 which contains the conductive part 3, along the slot 30 of this conductive part.
  • This insertion blade 60 is intended to come to press on each wire 2 to be connected so as to transversely reinforce the core 20 of this wire in the slot 30 and its sheath 21 in the rectilinear lumen 55 where they get stuck.
  • the insertion blade 60 is able to pass between the edges 31 of the slot 30 and on either side of these edges, it is then in the form of a flat, elongated blade, provided symmetrically of longitudinal grooves 63 reducing its thickness to a value less than the distance between edges 31 of slot 30 of connection piece, which allows it to slide longitudinally between these edges 31 then housed each in a groove.
  • the insertion blade 60 has two pairs of grooves 63 arranged symmetrically with respect to the longitudinal axis of the blade, the latter being assumed to be perpendicular to the plane of the sheet carrying FIG. 4.
  • a such an arrangement is particularly advantageous for the user insofar as it avoids modifying the orientation of the connection tool to connect wires to conductive parts mounted back to back in the same housing, as is conventionally the case in terminal blocks, in particular in the one whose half is shown in Figure 2.
  • a simplified solution uses a blade having only one pair of grooves 63.
  • This blade corresponds practically to a half of blade 60 of FIG. 4 cut longitudinally along a transverse median plane, it has for example a symmetry by relative to a transverse plane passing through the bottom of the grooves 63.
  • the insertion blade 60 of the connection tool 6 presented in FIG. 5 slides in a guide duct 64 which also contains a pusher 65, for example cylindrical, carrying the insertion blade 60 at one end and receiving at the other end the thrust of an actuating trigger 66 articulated on a grip grip 67 of the tool.
  • a pusher 65 for example cylindrical
  • connection tool where the guide duct is formed is for example composed of two symmetrical half-shells joined together 6A, 6B - FIG. 7 -.
  • a coil spring 68 belts here a part of the pusher 65 and / or of the insertion blade 60, it tends to bring the latter at the bottom of the duct 64, in a retracted position, when the trigger 66 is released, after complete pulling , a classic ratchet system not shown forcing the user to continue any traction started.
  • the bringing together of the trigger 66 towards the stock 67 causes the insertion blade 60 to come out of the conduit 64 and out of the tool 6.
  • the trigger and the stock each comprise a cutting portion 69, close to their articulation common 80 to allow the cutting of a wire, such as a pair of scissors, during connection operations.
  • Two fixing pieces 70 are arranged on either side of the insertion blade 60 and two flexible blades 62 on either side of this insertion blade, they fix the flexible blades on the body of the tool 6 beyond the conduit 64 on the part and of a guide 71 the insertion blade 60 is slid.
  • the insertion blade 60 is set back relative to the flexible blades when the trigger 66 is released, it slides between them by separating them when this trigger is pressed.
  • the flexible blades 62 have their bases end parallel to the insertion blade 60, they are inclined towards each other beyond the guide 71 and outside the tool 6 so as to join their free end; the two free adjoining ends are externally rolled to each form a bead 61, facilitating the introduction and extraction of the tool in and out of the orifice 51, due to its rounded shape.
  • the beads 61 move outward when the insertion blade 60 projects from the tool 6 and return to each other when the trigger is released and that as a result the insertion blade 69 is retracted inside the tool 6.
  • connection tool 6 is positioned in a precise manner relative to the orifice 51 of a connection arrangement of a housing 5 by coming to be embedded in translation by one end, called blade outlet, on the projection 52 in the central area of which is formed the introduction hole 51 concerned.
  • the half-shells 6A and 6B unite to form a tubular end piece in two parts, the latter join and determine a range allowing the tool 6 to be positioned on the projecting element 52 by an area support plane 72 - FIGS. 6 to 8 - and to be centered with respect to this projecting element which it comes to grip laterally by means of two lateral centering elements constituted here by extensions 73, as shown in FIG. 8.
  • the flat support area 72 formed at the end of the half-shells 6A, 6B is completed by the corresponding ends of the two fixing pieces 70.
  • the extensions 73 terminate at the same level as the beads 61 which they partially protect, the flexible blades 62 projecting at the center of the blade outlet end.
  • the width of the orifice 51 of a connection arrangement on a housing 5 corresponds practically to the sum of the thicknesses of the flexible blades 62 and of the insertion blade 60 so that a sufficient transverse positioning of the tool 6 is obtained, when the beads 61 are under the flanges 53, the flexible blades 62 and the insertion blade 60 then passing through the orifice.
  • an open end of the wire 2 is introduced through the hole 54 until it comes into abutment at the bottom of the housing 50 above and beyond the edges 31 of the slot 30 of the conductive part 3 -figure 8 -.
  • the tool 6 is positioned, trigger released and consequently the insertion blade 60 retracted, on the projection 52 which it covers, the tubular end piece coming in translation to be fitted on this projection.
  • the lateral centering elements 73 are positioned on either side of this projection - FIG. 8 - and the beads 61 of the flexible blades 62 penetrate through the orifice 51 below the level of the flanges 53, when the reach plane 72 of the connection tool 6 comes to bear on the top of the projection 52 -figure 9 -.
  • the exertion of pressure on the trigger 66 of the connection tool 6 towards the butt 67 causes a translation of the pusher 65 and the insertion blade 60 at the same time as a compression of the spring 68.
  • the blade d insertion 60 then spreads the flexible blades 62, the beads 61 of which get stuck under the edges 53 of the housing by securing the tool 6 to the housing 5.
  • the insertion blade 60 comes to bear on the sheath 20 of the wire to be connected and first drives it into the stripped mouth of the connection piece where this sheath is notched, then simultaneously in the slot 30 and in the lumen 55 or respectively the core 20 and the sheath 21 of the wire are stuck -figures 10 and 11 -
  • the release of the trigger of the tool 6 causes the insertion blade 60 to be retracted into the tool by the spring 68 and the reconciliation of the beads 61 which return elastically towards each other or detaching the tool 6 of housing 5.
  • connection of a second wire can then be carried out identically, this second wire resiliently repelling the first deeper in the slot 30 and in the lumen 55.
  • the action on the trigger 66 must then be prolonged to obtain this result and it is preferable to provide a system for example with notches, associated with the trigger, in a manner known per se and not described here, to differentiate the connection stroke from this trigger compared to the longer disconnect.
  • the extraction tool 81 shown housed in the handle 67 of tool 6 in FIG. 5, is here composed of a handle carrying a thin rigid rod bent at a right angle at the end.
  • the extraction tool 6 allows, after having been extracted from the handle 67, to lift a wire 2 immobilized in the stripping and holding slot of the connection piece 3, by entering this piece through the orifice 51 and by hanging under the wire 2 by its bent end. This wire 2 is thus wound up towards the cylindrical hole 54 through which it is then possible to extract it.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Surgical Instruments (AREA)
  • Processing Of Terminals (AREA)
  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'agencement de connexion qui comporte une pièce conductrice de connexion à fente (3) immobilisée dans un logement d'un boîtier isolant (5) est doté de moyens de fixation (52, 53) permettant de positionner et d'immobiliser un outil de connexion (6) sur le boîtier pour la durée d'une opération de connexion. L'outil de connexion (6) comporte des moyens d'appui (72, 73) lui permettant de se positionner sur le boîtier et une lame rigide d'insertion de fil (60) venant pénétrer dans le boîtier le long de la fente par un orifice d'introduction d'outil (51). La lame rigide d'insertion (60) coopére avec deux lames souples (62) pour immobiliser l'outil au niveau de l'orifice d'introduction d'outil (51).The connection arrangement which comprises a conductive connection piece with slot (3) immobilized in a housing of an insulating housing (5) is provided with fixing means (52, 53) for positioning and immobilizing a tool. connection (6) on the housing for the duration of a connection operation. The connection tool (6) comprises support means (72, 73) allowing it to be positioned on the housing and a rigid wire insertion blade (60) coming into the housing along the slot by a tool insertion hole (51). The rigid insertion blade (60) cooperates with two flexible blades (62) to immobilize the tool at the level of the tool insertion orifice (51).

Description

La présente invention concerne un agencement de connexion à fente de dénudage et de retenue de fil pour un ou plusieurs fils électriques et un outil destiné à assurer la connexion des fils dans de tels agencements.The present invention relates to a connection arrangement with stripping and wire retaining slot for one or more electric wires and a tool intended to ensure the connection of the wires in such arrangements.

De tels agencements de connexion sont habituellement mis en oeuvre pour raccorder des fils entre eux dans des organes de type bloc de jonction ou pour raccorder des fils à un appareillage électrique.Such connection arrangements are usually used to connect wires to one another in junction block type members or to connect wires to electrical equipment.

Classiquement chaque agencement de connexion comporte une fente de dénudage et de retenue de fil ménagée dans une pièce conductrice de faible épaisseur, la fente est munie, à l'une de ses extrémités, d'une embouchure évasée destinée à faciliter l'insertion longitudinale dans la fente d'un fil à raccorder disposé transversalement et à assurer simultanément une coupe transversale de l'isolant gainant ce fil. L'âme du fil, localement dénudée par l'embouchure de fente, vient en contact avec les bords de cette fente qui l'immobilisent par leur pression et qui assurent simultanément une continuité électrique entre le fil et la pièce conductrice, la gaine isolante du fil est simultanément coincée entre les bords d'une ouverture de coincement de gaine qui s'étend au regard de la fente de dénudage et de maintien dans un boîtier isolant où est généralement logée la pièce conductrice.Conventionally, each connection arrangement comprises a stripping and wire retaining slot made in a conductive piece of small thickness, the slot is provided, at one of its ends, with a flared mouth intended to facilitate longitudinal insertion into the slit of a wire to be connected arranged transversely and simultaneously ensuring a cross section of the insulation sheathing this wire. The core of the wire, locally stripped by the slit mouth, comes into contact with the edges of this slit which immobilize it by their pressure and which simultaneously provide electrical continuity between the wire and the conductive part, the insulating sheath of the wire is simultaneously wedged between the edges of a sheath wedging opening which extends facing the stripping and holding slot in an insulating housing where the conductive part is generally housed.

La connexion d'un fil à un tel agencement nécessite l'application d'une force d'enforcement sur le fil qui implique le plus souvent la mise en oeuvre d'un outil démultiplicateur, que l'on souhaite le plus souvent simple, par exemple un levier.The connection of a wire to such an arrangement requires the application of a reinforcing force on the wire which most often involves the use of a reduction tool, which is most often desired to be simple, by example a lever.

Ce type d'outil, qui permet de développer une puissance suffisante, a par contre l'inconvénient d'être imprécis et éventuellement dommageable pour l'agencement de connexion lorsqu'il est mis en oeuvre par des utilisateurs dont la force, l'habilité où l'application varient notablement.This type of tool, which makes it possible to develop sufficient power, on the other hand has the disadvantage of being imprecise and possibly damaging for the connection arrangement when it is used by users whose strength, skill where the application vary significantly.

De ce fait, on cherche à créer des agencements de connexion et des outils permettant d'obtenir une bonne régularité de qualité des connexions, avec un coût raisonnable.Therefore, we seek to create connection arrangements and tools to obtain good quality regularity connections, with a reasonable cost.

A cet effet la présente invention propose d'une part un agencement de connexion à fente pour fil électrique dans lequel au moins une pièce conductrice de connexion est immobilisée dans un boîtier isolant doté d'au moins une ouverture s'étendant en regard d'une fente de dénudage et de retenue d'âme de fil, qui assure la connexion électrique et qui est ménagée au long d'une paroi de ladite pièce de connexion, ladite ouverture permettant l'insertion d'un fil, à raccorder transversalement au-dessus d'une embouchure dénudante de la fente ainsi que l'immobilisation ultérieure du fil par sa gaine isolante. Selon une caractéristique de l'invention le boîtier, doté d'au moins un orifice d'introduction pour une lame rigide et mobile d'insertion d'un outil extérieur qui est destiné à coulisser au long de la fente lors de l'insertion d'un fil, est aussi muni d'un dispositif de positionnement d'outil, par orifice d'introduction, qui est constitué pour une saillie au centre de laquelle est ménagé l'orifice d'introduction considéré et sur laquelle vient s'encastrer par translation une extrémité d'outil comportant ladite lame d'insertion, l'orifice d'introduction étant intérieurement doté de rebords d'accrochage pour des éléments mobiles de fixation portés par l'extrémité d'outil qui sont aptes à pénétrer dans l'orifice d'introduction préalablement à la lame d'insertion pour s'accrocher aux rebords en immobilisant l'outil par rapport au boîtier isolant, lors de l'actionnement de cette lame d'insertion.To this end, the present invention provides on the one hand a slotted connection arrangement for an electric wire in which at least one conductive connection piece is immobilized in an insulating housing provided with at least one opening extending opposite a wire stripping and retaining slot, which provides the electrical connection and which is formed along a wall of said connection piece, said opening allowing the insertion of a wire, to be connected transversely above of a stripped mouth of the slot as well as the subsequent immobilization of the wire by its insulating sheath. According to a characteristic of the invention, the housing, provided with at least one insertion orifice for a rigid and mobile blade for inserting an external tool which is intended to slide along the slot during the insertion of 'a wire, is also provided with a tool positioning device, by introduction hole, which is formed for a projection in the center of which is formed the considered introduction hole and on which comes to be embedded by translation a tool end comprising said insertion blade, the insertion orifice being internally provided with hooking flanges for mobile fixing elements carried by the tool end which are capable of penetrating into the orifice of introduction prior to the insertion blade to hang on the edges by immobilizing the tool relative to the insulating housing, upon actuation of this insertion blade.

L'invention propose aussi un outil de connexion doté d'une lame rigide d'insertion de fil qui est mobile dans un conduit de guidage entre une position pour laquelle cette lame est rétractée à l'intérieur du conduit dans l'outil et une position pour laquelle elle sai lle par une de ses extrémités hors de l'outil, ainsi que de moyens pour placer l'outil, sur un boîtier isolant d'un agencement de raccordement, en position de fonctionnement au dessus d'un orifice d'introduction de lame d'insertion dudit boîtier.The invention also provides a connection tool provided with a rigid wire insertion blade which is movable in a guide duct between a position for which this blade is retracted inside the duct in the tool and a position for which it sits at one of its ends outside the tool, as well as means for placing the tool, on an insulating housing of a connection arrangement, in the operating position above an insertion orifice insertion blade of said housing.

Selon une caractéristique de l'invention, l'outil de connexion comporte une extrémité de sortie de lame d'insertion agencée pour s'encastrer extérieurement par translation sur une saillie de boîtier au centre de laquelle se trouve un orifice d'introduction de lame, ladite extrémité étant centralement dotée de deux lames souples assujetties dans le conduit de part et d'autre de la lame d'insertion qui coulisse entre elles, ces deux lames souples saillant identiquement hors du conduit à l'extérieur de l'outil, chacune par une extrémité en forme de bourrelet, de manière que lesdits bourrelets, élastiquement ramenés l'un vers l'autre par les lames qui les comportent dans une position permettant leur introduction dans un orifice, soient écartés l'un de l'autre par la saillie de la lame d'insertion hors de l'outil et soient en conséquence aptes à venir se coincer sous des rebords d'accrochage ménagés de manière interne dans l'orifice d'introduction considéré, en immobilisant l'outil en position de fonctionnement sur le boîtier tant que la lame d'insertion n'est pas rétractée.According to a characteristic of the invention, the connection tool comprises an end of the insertion blade outlet arranged to be embedded externally by translation on a housing projection in the center of which is a blade insertion orifice, said end being centrally provided with two flexible blades secured in the conduit on either side of the insertion blade which slides between them, these two flexible blades projecting identically out of the duct outside the tool, each by a bead-shaped end, so that said beads, elastically brought towards one another by the blades which comprise them in a position allowing their introduction into a orifice, are spaced from each other by the projection of the insertion blade out of the tool and are consequently able to come to be caught under hooking flanges formed internally in the orifice. introduction considered, immobilizing the tool in the operating position on the housing as long as the insertion blade is not retracted.

L'invention, ses caractéristiques et ses avantages sont précisés dans la description qui suit en liaison avec les figures répertoriées ci-dessous.

  • La figure 1 montre un agencement de connexion selon l'invention vu de côté.
  • La figure 2 montre une coupe selon II-II de l'agencement présenté figure 1 à laquelle on a associé un embout d'outil de connexion selon l'invention et un fil à raccorder.
  • La figure 3 montre une vue de dessus de l'agencement de connexion selon l'invention.
  • La figure 4 est un montage en coupe montrant un positionnement d'une lame d'outil de connexion selon l'invention dans une pièce conductrice de connexion d'un agencement selon l'invention.
  • La figure 5 présente une coupe schématique d'un exemple d'outil manuel de connexion selon l'invention, dont une demi-coque est ôtée.
  • Les figures 6 et 7 présentent deux coupes médianes orthogonales d'une portion de l'outil de connexion selon l'invention, une demi-coque étant ôtée sur la figure 6.
  • Les figures 8 à 11 présentent quatre montages montrant le fonctionnement de l'outil successivement avant connexion pour les deux premières et en fin de connexion d'un fil pour les deux dernières, une demi-coque étant ôtée sur les figures 8 et 10.
The invention, its characteristics and its advantages are explained in the following description in conjunction with the figures listed below.
  • Figure 1 shows a connection arrangement according to the invention seen from the side.
  • Figure 2 shows a section on II-II of the arrangement shown in Figure 1 which has been associated with a connection tool tip according to the invention and a wire to be connected.
  • Figure 3 shows a top view of the connection arrangement according to the invention.
  • FIG. 4 is a sectional assembly showing a positioning of a connection tool blade according to the invention in a conductive connection piece of an arrangement according to the invention.
  • FIG. 5 presents a schematic section of an example of a manual connection tool according to the invention, of which a half-shell is removed.
  • FIGS. 6 and 7 show two orthogonal median sections of a portion of the connection tool according to the invention, a half-shell being removed in FIG. 6.
  • Figures 8 to 11 show four arrangements showing the operation of the tool successively before connection for the first two and at the end of connection of a wire for the last two, a half-shell being removed in FIGS. 8 and 10.

L'agencement de connexion à fente selon l'invention est destiné à être intégré dans un équipement électrique 1 du type organe ou appareillage pour assurer le raccordement électrique d'un ou de plusieurs fils 2 à cet équipment.The slotted connection arrangement according to the invention is intended to be integrated into electrical equipment 1 of the organ or appliance type for ensuring the electrical connection of one or more wires 2 to this equipment.

Dans l'exemple ici pris en compte l'équipment électrique est un bloc de jonction dont seule une moitié à été montrée en figure 2, l'autre moitié étant symétrique selon un plan médian de trace XXʹ considéré comme perpendiculaire au plan du dessin.In the example taken into account here, the electrical equipment is a terminal block of which only one half has been shown in FIG. 2, the other half being symmetrical along a median plane of trace XXʹ considered to be perpendicular to the plane of the drawing.

Chaque moitié de bloc de jonction est dotée d'un agencement de connexion à fente selon l'invention, chaque agencement de connexion comporte une pièce conductrice de connexion 3 apte à recevoir au moins un et éventuellement plusieurs fils en parallèle.Each half of the terminal block is provided with a slot connection arrangement according to the invention, each connection arrangement comprises a conductive connection piece 3 capable of receiving at least one and possibly several wires in parallel.

Dans la réalisation présentée la pièce conductrice 3 d'un agencement de connexion est susceptible d'être électriquement reliée à une autre pièce conductrice du bloc, par l'intermédiaire d'un organe contacteur apte à venir se plaquer contre un plot approprié 4 de la pièce conductrice 3, l'autre pièce et l'organe contacteur n'étant pas représentés ici.In the embodiment presented, the conductive part 3 of a connection arrangement is capable of being electrically connected to another conductive part of the block, by means of a contactor member capable of coming to be pressed against an appropriate stud 4 of the conductive part 3, the other part and the contactor member not being shown here.

Bien entendu la pièce conductrice 3 est ègalement susceptible d'être directement connectée par sa base à une pièce analogue montée symétriquement par rapport à elle comme cela est classique dans de nombreux blocs de jonction. La ba rrette commune unissant les pièces par leur base ne comporte alors plus de plot 4.Of course the conductive part 3 is also capable of being directly connected by its base to an analogous part mounted symmetrically with respect to it as is conventional in many terminal blocks. The common bar uniting the parts by their base then no longer has stud 4.

La pièce 3 est immobilisée dans un logement 50 prévu à cet effet dans un boîtier isolant 5 qui contient au moins partiellement et ici totalement l'équipement électrique 1. Ce boîtier isolant 5 est par exemple constitué par assemblage de deux demi-coques complémentaires, qui sont par exemple rendues solidaires par soudage ultrasonique après introduction des organes internes qu'elles doivent contenir, telles les pièces conductrices 3 et l'organe contacteur.The part 3 is immobilized in a housing 50 provided for this purpose in an insulating box 5 which contains at least partially and here totally the electrical equipment 1. This insulating box 5 is for example constituted by assembling two complementary half-shells, which are for example made integral by ultrasonic welding after introduction of the internal members which they must contain, such as the conductive parts 3 and the contactor member.

Dans l'exemple de réalisation proposé en figure 1, les deux demi-coques ont un plan de joint qui correspond au plan longitudinal médian de trace Y-Yʹ.In the embodiment proposed in FIG. 1, the two half-shells have a joint plane which corresponds to the median longitudinal plane of trace Y-Yʹ.

Chaque pièce conductrice 3 comporte une fente 30 de dénudage et de retenue pour les âmes 20 des fils 2 à raccorder - figure 1 -cette fente étant ici rectiligne et s'ouvrant par une embouchure dénudante 34 à l'une de ses extrémités.Each conductive part 3 has a stripping and retaining slot 30 for the cores 20 of the wires 2 to be connected - FIG. 1 - this slot being here rectilinear and opening by a stripping mouth 34 at one of its ends.

Dans l'exemple non limitatif de réalisation, la fente 30 est ménagée au long d'une paroi d'une partie profilée de la pièce 3, cette dernière étant obtenue, à partir d'un flan plan, par un matricage entraînant sa découpe, son pliage et éventuellement des amincissements localisés.In the nonlimiting exemplary embodiment, the slot 30 is formed along a wall of a profiled part of the part 3, the latter being obtained, from a flat blank, by a stamping causing its cutting, its folding and possibly localized thinning.

La partie profilée de la pièce 3 a pour exemple une section transversale polygonale creuse qui correspond ici à un U dont les extrémités libres ont été obliquement et également repliées l'une vers l'autre, comme on le voit sur la figure 4.The profiled part of the part 3 has for example a hollow polygonal cross section which here corresponds to a U whose free ends have been obliquely and also folded towards one another, as seen in FIG. 4.

La partie profilée ainsi obtenue comporte deux plis d'extrémité 31 correspondant aux extrémités libres obliquement repliées évoquées ci-dessus ces deux plis bordent la fente 30 qu'ils délimitent et ils sont ici extérieurement amincis vers cette fente.The profiled part thus obtained comprises two end folds 31 corresponding to the obliquely folded free ends mentioned above. These two folds border the slot 30 which they delimit and they are here externally thinned towards this slot.

Les deux parois parallèles 32, qui portent chacune un pli 31, participent à l'immobilisation de la pièce 3 dans son logement 50 conjointement avec la paroi de fond 33 à laquelle elles sont perpendiculairement orientées.The two parallel walls 32, which each carry a fold 31, participate in the immobilization of the part 3 in its housing 50 together with the bottom wall 33 to which they are perpendicularly oriented.

L'embouchure dénudante 34 de la pièce conductrice 3 est obtenue par découpe oblique symétrique des plis 31 à une de leurs deux extrémités, cette découpe oblique permet d'obtenir une embouchure évasée. Dans une forme préférée de réalisation le pliage ultérieur des plis 31, par rapport aux parois 32 qui les portent, crée une arête supérieure suffisante pour entamer la gaine 21 des fils 2 poussés dans cette embouchure.The stripped mouth 34 of the conductive part 3 is obtained by symmetrical oblique cutting of the pleats 31 at one of their two ends, this oblique cutting makes it possible to obtain a flared mouth. In a preferred embodiment, the subsequent folding of the folds 31, with respect to the walls 32 which carry them, creates an upper edge sufficient to start the sheath 21 of the wires 2 pushed into this mouth.

Les plis 31, les parois parallèles 32 et la paroi de fond 33 délimitent une cavité que l'on fait déboucher à l'extérieur du boîtier 5 par un orifice 51, dit d'introduction de lame d'outil, ménagé dans ce boîtier 5 à proximité de l'embouchure dénudante 34, orthogonalement à cette dernière et ici à la partie supérieure sur le bloc représenté sur la figure 20.The folds 31, the parallel walls 32 and the bottom wall 33 delimit a cavity which is made open to the outside of the housing 5 by an orifice 51, said to introduce the tool blade, formed in this housing 5 near the stripping mouth 34, orthogonally to the latter and here at the top on the block shown in FIG. 20.

L'orifice 51 s'ouvre ici dans la zone centrale d'un dispositif de positionnement d'outil constitué par une saillie 52 formée à la partie supérieure du boîtier 5 sur la figure 2.Port 51 opens here in the central zone of a device for positioning a tool constituted by a projection 52 formed at the upper part of the housing 5 in FIG. 2.

Cette saillie 52 a ici une forme rectangulaire et comporte en son centre l'orifice 51, qui est lui même de forme rectangulaire -figure 3 -.This projection 52 here has a rectangular shape and has at its center the orifice 51, which is itself rectangular in shape -figure 3 -.

L'orifice 51 est disposé de manière à dégager un accès pour une lame 60 d'un outil de connexion 6 - figure 2 - dans le boîtier 5, soit ici dans la fente 30 et de part et d'autre des plis 31, c'est-à-dire à l'intérieur et à l'extérieur de la pièce profilée.The orifice 51 is arranged so as to release an access for a blade 60 of a connection tool 6 - FIG. 2 - in the housing 5, that is here in the slot 30 and on either side of the folds 31, c that is to say inside and outside of the profiled part.

Au moins deux des côtés de l'orifice 51 de forme rectangulaire, ici les bords longitudinaux, sont garnis de rebords 53 qui délimitent la largeur de l'orifice en haut de saillie 52 et qui sont destinés à permettre un accrochage de l'outil de connexion 6. Ce dernier est doté à cet effet d'extrémités renflées 61 portées par des lames souples 62 et constituant des éléments mobiles de fixation de l'outil au boîtier.At least two of the sides of the orifice 51 of rectangular shape, here the longitudinal edges, are furnished with flanges 53 which delimit the width of the orifice at the top of the projection 52 and which are intended to allow the attachment of the tool. connection 6. The latter is provided for this purpose with swollen ends 61 carried by flexible blades 62 and constituting mobile elements for fixing the tool to the housing.

Le boîtier 5 est également doté d'une ouverture qui s'étend en regard de la fente 30 pour permettre l'insertion successive des fils 2 transversalement au dessus de l'embouchure dénud ante 34 et le coincement des gaines 21 de ces fils l'une au dessus de l'autre simultanément au coincement de leurs âmes 20 dans la fente 30.The housing 5 is also provided with an opening which extends opposite the slot 30 to allow the successive insertion of the wires 2 transversely above the stripped mouth 34 and the jamming of the sheaths 21 of these wires. one above the other simultaneously with the wedging of their cores 20 in the slot 30.

L'ouverture comporte ici un trou de forme cylindrique 54 à travers lequel il est possible d'enforcer axialement un fil au dessus de l'embouchure dénudante 34 et en butée en fond de logement 50, au delà de l'embouchure dénudante 34 de la pièce conductrice 3.The opening here has a cylindrical hole 54 through which it is possible to axially reinforce a wire above the stripping mouth 34 and in abutment at the bottom of the housing 50, beyond the stripping mouth 34 of the conductive part 3.

Le trou cylindrique 54 communique avec une lumière rectiligne 55 qui débouche à sa partie inférieure sur la figure 1 et qui s'étend au droit de la fente 30 lorsque la pièce conductrice 3 est en place.The cylindrical hole 54 communicates with a rectilinear opening 55 which opens at its lower part in FIG. 1 and which extends in line with the slot 30 when the conductive part 3 is in place.

La lumière rectiligne 55 est destinée à assurer la retenue des gaines 21 des fils 2 connectés, elle a donc une largeur légèrement inférieure au diamètre de la plus petite des gaines prévues et comporte des bossages 80 réalisés sous le trou cylindrique 54 dans la lumière rectiligne pour empêcher la remontée d'un fil bloqué par sa gaine dans la lumière rectiligne, vers ce trou cylindrique 54.The rectilinear light 55 is intended to ensure the retention of the sheaths 21 of the connected wires 2, it therefore has a width slightly less than the diameter of the smallest of the sheaths provided and includes bosses 80 produced under the cylindrical hole 54 in the rectilinear light for prevent the ascent of a wire blocked by its sheath in the rectilinear opening, towards this cylindrical hole 54.

Dans l'exemple de réalisation proposé, un second trou 56 est ménagé dans le boîtier 5 à l'autre extrémité de la lumière rectiligne 55 par rapport au trou 54, il débouche sous sa fente 30 de la pièce conductrice 3 pour permettre le retrait d'un fil préalablement raccordé par coincement de son âme 20 dans cette fente 30.In the proposed embodiment, a second hole 56 is formed in the housing 5 at the other end of the rectilinear lumen 55 relative to the hole 54, it opens under its slot 30 of the conductive part 3 to allow the withdrawal of a wire previously connected by wedging its core 20 in this slot 30.

Dans une autre forme de réalisation, non figurée ici, la lumière rectiligne 55 se ferme au ras de la base de la pièce de connexion et ne comporte pas de second trou.In another embodiment, not shown here, the rectilinear opening 55 closes flush with the base of the connection piece and does not have a second hole.

Deux lumières auxiliaires 57 bordent latéralement la lumière rectiligne 55 de manière à permettre à la déformation des zones du boîtier 5 qui assurent le coincement des gaines, sans que pour cela les dimensions extérieures du boîtier soient modifiées lorsque des gaines y sont immobilisées.Two auxiliary lights 57 laterally border the rectilinear light 55 so as to allow the deformation of the zones of the housing 5 which ensure the jamming of the sheaths, without for this reason the external dimensions of the housing being modified when the sheaths are immobilized there.

L'outil de connexion 6 comporte, comme on l'a vu, une lame rigide 60 d'insertion de fil esquissée sur les figures 2 et 4 et précisée sur les figures 6 à 8. Cette lame d'insertion 60 est destinée à venir s'insérer à travers l'orifice 51 d'introduction d'outil dans le logement 50 qui contient la pièce conductrice 3, le long de la fente 30 de cette pièce conductrice.The connection tool 6 comprises, as we have seen, a rigid blade 60 for wire insertion sketched in FIGS. 2 and 4 and specified in FIGS. 6 to 8. This insertion blade 60 is intended to come insert itself through the hole 51 for introducing the tool into the housing 50 which contains the conductive part 3, along the slot 30 of this conductive part.

Cette lame d'insertion 60 est destinée à venir presser sur chaque fil 2 à connecter de manière à enforcer transversalement l'âme 20 de ce fil dans la fente 30 et sa gaine 21 dans la lumière rectiligne 55 où elles se coincent.This insertion blade 60 is intended to come to press on each wire 2 to be connected so as to transversely reinforce the core 20 of this wire in the slot 30 and its sheath 21 in the rectilinear lumen 55 where they get stuck.

Dans une forme préférée de réalisation la lame d'insertion 60 est apte à passer entre les bords 31 de la fente 30 et de part et d'autre de ces bords, elle se présente alors sous forme d'une lame plane, longiligne, dotée symétripquement de rainures longitudinales 63 réduisant son épaisseur à une valeur inférieure à la distance entre bords 31 de fente 30 de pièce de connexion, ce qui lui permet de coulisser longitudinalement entre ces bords 31 alors logés chacun dans une rainure.In a preferred embodiment the insertion blade 60 is able to pass between the edges 31 of the slot 30 and on either side of these edges, it is then in the form of a flat, elongated blade, provided symmetrically of longitudinal grooves 63 reducing its thickness to a value less than the distance between edges 31 of slot 30 of connection piece, which allows it to slide longitudinally between these edges 31 then housed each in a groove.

Dans l'exemple de réalisation présenté, la lame d'insertion 60 comporte deux paires de rainures 63 disposées symétriquement par rapport à l'axe longitudinal de la lame, celui-ci étant supposé perpendiculaire au plan de la feuille portant la figure 4. Une telle disposition est notamment avantageuse pour l'utilisateur dans la mesure où elle évite de modifier l'orientation de l'outil de connexion pour connecter des fils à des piéces conductrices montées dos à dos dans un même boîtier, comme cela se passe classiquement dans les blocs de jonction, en particulier dans celui dont une moitié est présentée en figure 2.In the embodiment shown, the insertion blade 60 has two pairs of grooves 63 arranged symmetrically with respect to the longitudinal axis of the blade, the latter being assumed to be perpendicular to the plane of the sheet carrying FIG. 4. A such an arrangement is particularly advantageous for the user insofar as it avoids modifying the orientation of the connection tool to connect wires to conductive parts mounted back to back in the same housing, as is conventionally the case in terminal blocks, in particular in the one whose half is shown in Figure 2.

Une solution simplifiée non représentée met en oeuvre une lame ne comportant qu'une seule paire de rainures 63. Cette lame correspond pratiquement à une moitié de lame 60 de la figure 4 coupée longitudinalement selon un plan médian transversal, elle possède par exemple une symétrie par rapport à un plan transversal passant par le fond des rainures 63.A simplified solution, not shown, uses a blade having only one pair of grooves 63. This blade corresponds practically to a half of blade 60 of FIG. 4 cut longitudinally along a transverse median plane, it has for example a symmetry by relative to a transverse plane passing through the bottom of the grooves 63.

La lame d'insertion 60 de l'outil de connexion 6 présenté figure 5 coulisse dans u n conduit de guidage 64 qui contient également un poussoir 65, par exemple cylindrique, portant la lame d'insertion 60 à une extrémité et recevant à l'autre extrémité la poussée d'une gâchette 66 de manoeuvre articulée sur une crosse de préhension 67 de l'outil.The insertion blade 60 of the connection tool 6 presented in FIG. 5 slides in a guide duct 64 which also contains a pusher 65, for example cylindrical, carrying the insertion blade 60 at one end and receiving at the other end the thrust of an actuating trigger 66 articulated on a grip grip 67 of the tool.

La partie de l'outil de connexion ou est ménagé le conduit de guidage est composée par exemple de deux demi-coques symétriques accolées 6A, 6B - figure 7 -.The part of the connection tool where the guide duct is formed is for example composed of two symmetrical half-shells joined together 6A, 6B - FIG. 7 -.

Un ressort à boudin 68 ceinture ici une partie du poussoir 65 et/ou de la lame d'insertion 60, il tend à ramener cette dernière en fond de conduit 64, dans une position rétractée, lorsque la gâchette 66 est relâchée, après traction complète, un classique système à cliquet non figuré obligeant l'utilisateur à poursuivre toute traction commencée.A coil spring 68 belts here a part of the pusher 65 and / or of the insertion blade 60, it tends to bring the latter at the bottom of the duct 64, in a retracted position, when the trigger 66 is released, after complete pulling , a classic ratchet system not shown forcing the user to continue any traction started.

La rapprochement de la gâchette 66 vers la crosse 67 entraîne la sortie de la lame d'insertion 60 hors du conduit 64 et hors de l'outil 6. Accessoirement la gâchette et la crosse comportent chacune une portion coupante 69, à proximité de leur articulation commune 80 pour permettre le sectionnement d'un fil, comme une paire de ciseaux, lors des opérations de raccordement.The bringing together of the trigger 66 towards the stock 67 causes the insertion blade 60 to come out of the conduit 64 and out of the tool 6. Incidentally the trigger and the stock each comprise a cutting portion 69, close to their articulation common 80 to allow the cutting of a wire, such as a pair of scissors, during connection operations.

Deux pièces de fixation 70 sont disposées de part et d'autre de la lame d'insertion 60 et des deux lames souples 62 de part et d'autre de cette lame d'insertion, elles fixent les lames souples sur le corps
de l'outil 6 au delà du conduit 64 de part et d'un guide 71 on coulisse la lame d'insertion 60.Two fixing pieces 70 are arranged on either side of the insertion blade 60 and two flexible blades 62 on either side of this insertion blade, they fix the flexible blades on the body
of the tool 6 beyond the conduit 64 on the part and of a guide 71 the insertion blade 60 is slid.

La lame d'insertion 60 est située en retrait par rapport aux lames souples lorsque la gâchette 66 est relâchée, elle coulisse entre elles en les séparant lorsque cette gâchette est pressée.The insertion blade 60 is set back relative to the flexible blades when the trigger 66 is released, it slides between them by separating them when this trigger is pressed.

Dans l'exemple de réalisation proposé, les lames souples 62, ont leurs bases finissent parallèles à la lame d'insertion 60, elles sont inclinées l'une vers l'autre au delà du guide 71 et à l'extérieur de l'outil 6 de manière à se joindre à leur extrémité libre ; les deux extrémités libres accolées sont extérieurement roulées pour former chacune un bourrelet 61, facilitant l'introduction et l'extraction de l'outil dans et hors de l'orifice 51, en raison de sa forme arrondie.In the proposed embodiment, the flexible blades 62, have their bases end parallel to the insertion blade 60, they are inclined towards each other beyond the guide 71 and outside the tool 6 so as to join their free end; the two free adjoining ends are externally rolled to each form a bead 61, facilitating the introduction and extraction of the tool in and out of the orifice 51, due to its rounded shape.

Les bourrelets 61 s'écartent vers l'extérieur lorsque la lame d'insertion 60 est en saillie hors de l'outil 6 et reviennent l'un vers l'autre lorsque la gâchette est lâchée et que en conséquence la lame d'insertion 69 est rétractée à l'intérieur de l'outil 6.The beads 61 move outward when the insertion blade 60 projects from the tool 6 and return to each other when the trigger is released and that as a result the insertion blade 69 is retracted inside the tool 6.

Pour obtenir une bonne régularité des connexions, l'outil de raccordement 6 vient se positionner de manière précise par rapport à l'orifice 51 d'un agencement de connexion d'un boîtier 5 en venant s'encastrer en translation par une extrémité, dite de sortie de lame, sur la saillie 52 dans la zone centrale de laquelle est ménagé l'orifice d'introduction 51 concerné.To obtain good regularity of the connections, the connection tool 6 is positioned in a precise manner relative to the orifice 51 of a connection arrangement of a housing 5 by coming to be embedded in translation by one end, called blade outlet, on the projection 52 in the central area of which is formed the introduction hole 51 concerned.

En ce but, les demi-coques 6A et 6B s'unissent pour former un embout tubulaire en deux parties, ces dernières se joignent et déterminent une portée permettant à l'outil 6 de se positionner sur l'élément en saillie 52 par une zone plane d'appui 72 - figure 6 à 8 - et de se centrer par rapport à cet élément en saillie qu'il vient latéralement enserrer grâce à deux éléments latéraux de centrage constitués ici par des prolongements 73, comme le montre la figure 8.For this purpose, the half-shells 6A and 6B unite to form a tubular end piece in two parts, the latter join and determine a range allowing the tool 6 to be positioned on the projecting element 52 by an area support plane 72 - FIGS. 6 to 8 - and to be centered with respect to this projecting element which it comes to grip laterally by means of two lateral centering elements constituted here by extensions 73, as shown in FIG. 8.

La zone plane d'appui 72 formée en extrémité des demi-coques 6A, 6B est complétée par les extrémités correspondantes des deux pièces de fixation 70.The flat support area 72 formed at the end of the half-shells 6A, 6B is completed by the corresponding ends of the two fixing pieces 70.

Dans la forme de réalisation proposée, les prolongements 73 se terminent au même niveau que les bourrelets 61 qu'ils protégent partiellement, les lames souples 62 saillant au centre de l'extrémité de sortie de lame.In the proposed embodiment, the extensions 73 terminate at the same level as the beads 61 which they partially protect, the flexible blades 62 projecting at the center of the blade outlet end.

La largeur de l'orifice 51 d'un agencement de connexion sur un boîtier 5 correspond pratiquement à la somme des épaisseurs des lames souples 62 et de la lame d'insertion 60 de manière qu'un positionnement transversal suffisant de l'outil 6 soit obtenu, lorsque les bourrelets 61 sont sous les rebords 53, les lames souples 62 et la lame d'insertion 60 traversant alors l'orifice.The width of the orifice 51 of a connection arrangement on a housing 5 corresponds practically to the sum of the thicknesses of the flexible blades 62 and of the insertion blade 60 so that a sufficient transverse positioning of the tool 6 is obtained, when the beads 61 are under the flanges 53, the flexible blades 62 and the insertion blade 60 then passing through the orifice.

Pour effectuer une connexion d'un fil 2 dans une pièce conductrice 3 d'un agencement de connexion logé dans un boîtier 5, on introduit une extrémité non dénudée du fil 2 à travers le trou 54 jusqu'à ce qu'il vienne en butée en fond de logement 50 au dessus et au delà des bords 31 de fente 30 de la pièce conductrice 3 -figure 8 -.To make a connection of a wire 2 in a conductive part 3 of a connection arrangement housed in a housing 5, an open end of the wire 2 is introduced through the hole 54 until it comes into abutment at the bottom of the housing 50 above and beyond the edges 31 of the slot 30 of the conductive part 3 -figure 8 -.

L'outil 6 est positionné, gâchette relâchée et en conséquence lame d'insertion 60 rétractée, sur la saillie 52 qu'il coiffe, l'embout tubulaire venant par translation s'encastrer sur cette saillie. A cet effet les éléments latéraux de centrage 73 viennent se positionner de part et d'autre de cette saillie - figure 8 -et les bourrelets 61 des lames souples 62 pénétrent à travers l'orifice 51 sous le niveau des rebords 53, lorsque la portée plane 72 de l'outil de connexion 6 vient en appui sur le sommet de la saillie 52 -figure 9 -.The tool 6 is positioned, trigger released and consequently the insertion blade 60 retracted, on the projection 52 which it covers, the tubular end piece coming in translation to be fitted on this projection. To this end, the lateral centering elements 73 are positioned on either side of this projection - FIG. 8 - and the beads 61 of the flexible blades 62 penetrate through the orifice 51 below the level of the flanges 53, when the reach plane 72 of the connection tool 6 comes to bear on the top of the projection 52 -figure 9 -.

L'exercice d'une pression sur la gâchette 66 de l'outil de connexion 6 vers la crosse 67 entraîne une translation du poussoir 65 et de la lame d'insertion 60 en même temps qu'une compression du ressort 68. La lame d'insertion 60 écarte alors les lames souples 62 dont les bourrelets 61 viennent se coincer sous les rebords 53 du boîtier en solidarisant l'outil 6 au boîtier 5.The exertion of pressure on the trigger 66 of the connection tool 6 towards the butt 67 causes a translation of the pusher 65 and the insertion blade 60 at the same time as a compression of the spring 68. The blade d insertion 60 then spreads the flexible blades 62, the beads 61 of which get stuck under the edges 53 of the housing by securing the tool 6 to the housing 5.

La lame d'insertion 60 vient prendre appui sur la gaine 20 du fil à connecter et l'entraîne d'abord dans l'embouchure dénudante de la pièce de connexion où cette gaine est entaillée, puis simultanément dans la fente 30 et dans la lumière 55 ou respectivement l'âme 20 et la gaine 21 du fil sont coincées -figures 10 et 11 -The insertion blade 60 comes to bear on the sheath 20 of the wire to be connected and first drives it into the stripped mouth of the connection piece where this sheath is notched, then simultaneously in the slot 30 and in the lumen 55 or respectively the core 20 and the sheath 21 of the wire are stuck -figures 10 and 11 -

Le relâchement de la gâchette de l'outil 6 entraîne l'escamotage de la lame d'insertion 60 dans l'outil par le ressort 68 et le rapprochement des bourrelets 61 qui reviennent élastiquement l'un vers l'autre ou désolidarisant l'outil 6 du boîtier 5.The release of the trigger of the tool 6 causes the insertion blade 60 to be retracted into the tool by the spring 68 and the reconciliation of the beads 61 which return elastically towards each other or detaching the tool 6 of housing 5.

Une connexion d'un second fil peut alors être effectuée de manière identique, ce second fil repoussant élastiquement le premier plus profond dans la fente 30 et dans la lumière 55.A connection of a second wire can then be carried out identically, this second wire resiliently repelling the first deeper in the slot 30 and in the lumen 55.

Il est également possible d'extraire le premier fil 2 connecté grâce à la lame d'insertion 60 venant pousser ce premier fil hors de la pièce conductrice 3 au niveau du trou 56 qui permet son extraction.It is also possible to extract the first wire 2 connected thanks to the insertion blade 60 pushing this first wire out of the conductive part 3 at the hole 56 which allows its extraction.

L'action sur la gâchette 66 doit alors être prolongée pour obtenir ce résultat et il est préférable de prévoir un système par exemple à crans, associé à la gâchette, de manière connue en soi et non décrite ici, pour différencier la course de connexion de cette gâchette par rapport à celle plus longue de déconnexion.The action on the trigger 66 must then be prolonged to obtain this result and it is preferable to provide a system for example with notches, associated with the trigger, in a manner known per se and not described here, to differentiate the connection stroke from this trigger compared to the longer disconnect.

Lorsque la lumière rectiligne 55 se ferme au ras de la base de la pièce de connexion 3 en l'absence de trou 56 en bas de lumière, il est prévu d'utiliser un outil d'extraction 81 pénétrant à travers l'orifice 51, en l'absence d'outil 6, pour ressortir un fil 2 préalablement raccordé.When the rectilinear lumen 55 closes flush with the base of the connection piece 3 in the absence of a hole 56 at the bottom of the lumen, provision is made to use an extraction tool 81 penetrating through the orifice 51, in the absence of tool 6, to bring out a wire 2 previously connected.

L'outil d'extraction 81, montré logé dans la manche 67 d'outil 6 sur la figure 5, est ici composé d'un manche porteur d'une mince tige rigide coudée à angle droit en extrémité.The extraction tool 81, shown housed in the handle 67 of tool 6 in FIG. 5, is here composed of a handle carrying a thin rigid rod bent at a right angle at the end.

L'outil d'extraction 6 permet, aprés avoir été extrait du manche 67, de venir soulever un fil 2 immobilisé dans la fente de dénudage et de maintien de la pièce de connexion 3, en pénétrant dans cette pièce par l'orifice 51 et en s'accrochant sous le fil 2 par son extrémité coudée. Ce fil 2 est ainsi remonté vers le trou cylindrique 54 à travers lequel il est alors possible de l'extraire.The extraction tool 6 allows, after having been extracted from the handle 67, to lift a wire 2 immobilized in the stripping and holding slot of the connection piece 3, by entering this piece through the orifice 51 and by hanging under the wire 2 by its bent end. This wire 2 is thus wound up towards the cylindrical hole 54 through which it is then possible to extract it.

Il peut être envisagé d'actionner la lame d'outil par, d'autres moyens que le système à gâchette, par exemple à l'aide d'un système de pression fluidique n'exigeant pas nécessairement la présence d'une crosse. It can be envisaged to actuate the tool blade by means other than the trigger system, for example using a fluid pressure system which does not necessarily require the presence of a stock.

Claims (6)

1/ Agencement de connexion à fente, pour fil électrique (2), notamment destiné à un bloc de jonction électrique, dans lequel au moins une pièce conductrice de connexion (3) est immobilisée dans un boîtier is olant (5) doté d'au moins une ouverture s'étendant en regard d'une fente (30) de dénudage et de retenue d'âme de fil, qui assure la connexion électrique et qui est ménagée au long d'une paroi de ladite pièce de connexion, ladite ouverture permettant l'insertion d'un fil, à raccorder, transversalement au dessus d'une embouchure dénudante (34) de la fente ainsi que l'immobilisation ultérieure du fil par sa gaine (21) isolante, ledit agencement de connexion étant caractérisé en ce que le boîtier, doté d'au moins un orifice d'introduction (51) pour une lame d'insertion, appartenant à un outil extérieur, qui est rigide, mobile et destinée à coulisser au long de la fente lors de l'insertion d'un fil, est aussi muni d'un dispositif de positionnement d'outil, par orifice d'introduction, ce dispositif est constitué par une saillie (52) au centre de laquelle est ménagé l'orifice d'introduction (51) considéré et sur laquelle vient s'encastrer par translation une extrémité d'outil comportant ladite lame d'insertion, l'orifice d'introduction est intérieurement doté de rebords d'accrochage (53) pour des éléments mobiles de fixation (61, 62) portés par l'extrémité d'outil qui sont aptes à pénétrer dans l'orifice d'introduction préalablement à la lame d'insertion pour s'accrocher aux rebords en immobilisant l'outil par rapport au boîtier isolant, lors de l'actionnement de la lame d'insertion.1 / Slot connection arrangement, for electrical wire (2), in particular intended for an electrical terminal block, in which at least one conductive connection piece (3) is immobilized in an insulating housing (5) provided with at least one opening extending opposite a slot (30) for stripping and retaining the core of the wire, which ensures the electrical connection and which is formed along a wall of said connection piece, said opening allowing the insertion of a wire, to be connected, transversely above a stripped mouth (34) of the slot as well as the subsequent immobilization of the wire by its insulating sheath (21), said connection arrangement being characterized in that the housing, provided with at least one insertion orifice (51) for an insertion blade, belonging to an external tool, which is rigid, mobile and intended to slide along the slot during the insertion of a wire, is also provided with a tool positioning device, through an introductory orifice ion, this device is constituted by a projection (52) in the center of which is formed the introduction orifice (51) considered and on which comes to be embedded by translation a tool end comprising said insertion blade, l the introduction orifice is internally provided with hooking flanges (53) for mobile fixing elements (61, 62) carried by the tool end which are able to penetrate into the introduction orifice before the insertion blade to hang on the edges by immobilizing the tool with respect to the insulating housing, when the insertion blade is actuated. 2/ Agencement de connexion à fente selon la revendication 1, caractérisé en ce qu'il comporte un dispositif de positionnement d'outil constitué par une saillie (52) d'allure rectangulaire centrée autour d'un orifice d'introduction (51), également rectangulaire, qui est latéralement bordé sur deux de ses côtés parallèles par des rebords d'accrochage (53) symétriques.2 / slot connection arrangement according to claim 1, characterized in that it comprises a tool positioning device constituted by a projection (52) of rectangular shape centered around an introduction orifice (51), also rectangular, which is laterally bordered on two of its parallel sides by symmetrical hooking flanges (53). 3/ Outil de connexion, d'au moins un fil électrique à un agencement de raccordement selon au moins une des revendications précédentes, doté d'une lame rigide d'insertion de fil (60) qui est mobile dans un conduit de guidage (64) entre une position pour laquelle cette lame est retractée à l'intérieur de conduit dans l'outil (6) et une position pour laquelle elle saille par une de ses extrémités en position d'insertion, hors de l'outil, ainsi que de moyens pour positionner l'outil sur un boîtier isolant d'agencement de connexion en position de fonctionnement au dessus d'un orifice d'introduction de lame d'insertion dudit boîtier, l'outil (6) étant caractérisé en ce qu'il comporte une extrémité (72, 73) de sortie de lame d'insertion de l'outil agencée pour s'encastrer extérieurement par translation sur une saillie (52) de boîtier au centre de laquelle se trouve un orifice (51) d'introduction de lame, ladite extrémité étant centralement dotée de deux lames souples (62) assujetties dans le conduit de guidage (64) de part et d'autre de la lame d'insertion qui coulisse entre elles, ces deux lames souples saillant identiquement hors du conduit à l'extérieur de l'outil, chacune par une extrémité en forme de bourrelet (61) de manière que lesdits bourrelets, élastiquement ramènes l'un vers l'autre par les lames qui les comportent dans une position permettant leur introduction dans un orifice, soient écartés l'un de l'autre par la saillie de la lame d'insertion hors de l'outil et soient en conséquenc aptes à venir se coincer sous des rebords d'accrochage (53) ménagés de manière interne dans l'orifice d'introduction (51) considéré, en immobilisant l'outil en position de fonctionnement sur le boîtier (5), tant que la lame d'insertion n'est pas rétractée.3 / Connection tool, of at least one electric wire to a connection arrangement according to at least one of the preceding claims, provided with a rigid wire insertion blade (60) which is movable in a guide duct (64) between a position for which this blade is retracted inside the duct in the tool (6) and a position for which it projects by one of its ends in the insertion position, outside the tool, as well as means for positioning the tool on an insulating connection arrangement housing in the operating position above an insertion blade insertion orifice of said housing, the tool (6) being characterized in that it comprises an end (72, 73) for outputting the insertion blade of the tool arranged to be embedded externally by translation on a projection (52) of the housing at the center of which is an orifice (51 ) of blade introduction, said end being centrally provided with two flexible blades (62) fixed in the guide duct (64) on either side of the insertion blade which slides between them, these two flexible blades projecting identically out of the duct outside the tool, each by an extrem ity in the form of a bead (61) so that said beads, resiliently brought towards one another by the blades which include them in a position allowing their introduction into an orifice, are separated from one another by the projection of the insertion blade out of the tool and are consequently capable of being wedged under hooking flanges (53) formed internally in the introduction opening (51) considered, immobilizing the tool in operating position on the housing (5), as long as the insertion blade is not retracted. 4/ Outil de connexion selon la revendication 3, caractérisé en ce que l'extrémité de sortie de lame de l'outil est dotée de moyens de positionnement formés d'une zone plane d'appui (72) de l'outil en bout de saillie de positionnement dudit outil et d'éléments latéraux fixes de centrage (73) assurant le positionnement latéral précis de l'outil sur la saillie et par rapport à l'orifice d'introduction (51) pour permettre une pénétration précise de la lame d'insertion dans cet orifice au cours de l' opération de connexion.4 / Connection tool according to claim 3, characterized in that the blade outlet end of the tool is provided with positioning means formed by a flat support zone (72) of the tool at the end of projection for positioning said tool and fixed lateral centering elements (73) ensuring precise lateral positioning of the tool on the projection and relative to the insertion orifice (51) to allow precise penetration of the blade d insertion into this hole during the connection operation. 5/ Outil de connexion selon la revendication 4, caractérisé en ce que les moyens de positionnement forment un embout tubulaire (72, 73) apte à venir s'encastrer par translation sur une saillie de boîtier pour immobiliser précisément l'outil par rapport à l'orifice d'introduction que comporte ladite saillie.5 / Connection tool according to claim 4, characterized in that the positioning means form a tubular end piece (72, 73) capable of being recessed by translation on a projection housing to precisely immobilize the tool relative to the introduction orifice that includes said projection. 6/ Outil de connexion selon la revendication 3, caractérisé en ce que la lame d'insertion est une lame plane dotée de rainures (63) symétriques réduisant son épaisseur à une valeur inférieure à la distance entre bords (31) de fente (30) de dénudage et de maintien d'une pièce de connexion (3) pour pouvoir coulisser entre lesdits bords en appuyant de part et d'autre de la fente sur un fil (2) à connecter.6 / Connection tool according to claim 3, characterized in that the insertion blade is a flat blade provided with symmetrical grooves (63) reducing its thickness to a value less than the distance between edges (31) of slot (30) stripping and holding a connection piece (3) to be able to slide between said edges by pressing on either side of the slot on a wire (2) to be connected.
EP87402245A 1986-10-10 1987-10-08 Slotted connecting arrangement for an electrical cable, and connecting tool therefor Expired - Lifetime EP0265321B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8614133 1986-10-10
FR8614133 1986-10-10

Publications (2)

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EP0265321A1 true EP0265321A1 (en) 1988-04-27
EP0265321B1 EP0265321B1 (en) 1992-09-30

Family

ID=9339751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402245A Expired - Lifetime EP0265321B1 (en) 1986-10-10 1987-10-08 Slotted connecting arrangement for an electrical cable, and connecting tool therefor

Country Status (8)

Country Link
US (1) US4840579A (en)
EP (1) EP0265321B1 (en)
JP (1) JP2746892B2 (en)
BR (1) BR8707500A (en)
CA (1) CA1277740C (en)
DE (1) DE3781997T2 (en)
ES (1) ES2035098T3 (en)
WO (1) WO1988002935A1 (en)

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FR2714226A1 (en) * 1993-12-22 1995-06-23 Entrelec Sa Slotted connection arrangement for electrical wire connected to a piece mounted in a housing.
FR2746219A1 (en) * 1996-03-18 1997-09-19 Entrelec Sa AUXILIARY CONNECTION AND / OR DISCONNECTION OF LINK (S) FOR CONNECTION MODULE AND ALIGNMENT OF IDENTICAL OR SIMILAR CONNECTION MODULES OF AN ASSEMBLY AND CORRESPONDING CONNECTION MODULAR ASSEMBLY
FR2786823A1 (en) 1998-12-08 2000-06-09 Entrelec Sa Pneumatic tool transverse movement control mechanism having rear piston activating gas and forward piston/detector controlled ensuring detector position reached only following complete piston cycle.

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JP2790108B2 (en) * 1996-02-21 1998-08-27 日本電気株式会社 Cable connector
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DE19909825C5 (en) * 1999-03-05 2006-01-26 Phoenix Contact Gmbh & Co. Kg Sleeve-shaped clamping element for stripping-free connection of electrical conductors
US7231710B2 (en) * 2004-12-20 2007-06-19 Neil Edward Boa Apparatus for securing wire connectors
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DE102015121743A1 (en) * 2015-12-14 2017-06-14 Phoenix Contact Gmbh & Co. Kg IDC tool and IDC terminal

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Publication number Priority date Publication date Assignee Title
FR2714226A1 (en) * 1993-12-22 1995-06-23 Entrelec Sa Slotted connection arrangement for electrical wire connected to a piece mounted in a housing.
EP0662737A1 (en) * 1993-12-22 1995-07-12 Entrelec Sa Slotted connecting arrangement for an electric cable connected to a contact element in a box
US5584722A (en) * 1993-12-22 1996-12-17 Entrelec S.A. Slot connector terminal structure for connecting an electrical wire to a part mounted inside a housing
FR2746219A1 (en) * 1996-03-18 1997-09-19 Entrelec Sa AUXILIARY CONNECTION AND / OR DISCONNECTION OF LINK (S) FOR CONNECTION MODULE AND ALIGNMENT OF IDENTICAL OR SIMILAR CONNECTION MODULES OF AN ASSEMBLY AND CORRESPONDING CONNECTION MODULAR ASSEMBLY
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FR2786823A1 (en) 1998-12-08 2000-06-09 Entrelec Sa Pneumatic tool transverse movement control mechanism having rear piston activating gas and forward piston/detector controlled ensuring detector position reached only following complete piston cycle.

Also Published As

Publication number Publication date
BR8707500A (en) 1989-02-21
DE3781997T2 (en) 1993-02-18
ES2035098T3 (en) 1993-04-16
JPH01501107A (en) 1989-04-13
US4840579A (en) 1989-06-20
DE3781997D1 (en) 1992-11-05
WO1988002935A1 (en) 1988-04-21
EP0265321B1 (en) 1992-09-30
JP2746892B2 (en) 1998-05-06
CA1277740C (en) 1990-12-11

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