EP0375489B1 - Cutting, inserting and crimping tool for insulation displacement-type electrical connectors - Google Patents

Cutting, inserting and crimping tool for insulation displacement-type electrical connectors Download PDF

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Publication number
EP0375489B1
EP0375489B1 EP19890403332 EP89403332A EP0375489B1 EP 0375489 B1 EP0375489 B1 EP 0375489B1 EP 19890403332 EP19890403332 EP 19890403332 EP 89403332 A EP89403332 A EP 89403332A EP 0375489 B1 EP0375489 B1 EP 0375489B1
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EP
European Patent Office
Prior art keywords
slide
face
head
carriage
cutting
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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.)
Expired - Lifetime
Application number
EP19890403332
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German (de)
French (fr)
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EP0375489A1 (en
Inventor
Hervé Bricaud
Jean-François Lescoat
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ITT Composants et Instruments SA
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ITT Composants et Instruments SA
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Publication of EP0375489A1 publication Critical patent/EP0375489A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • 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
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H01R43/0421—Hand tools for crimping combined with other functions, e.g. cutting

Definitions

  • the present invention relates to a tool for cutting, inserting and crimping electrical wires in consecutive parallel cells of an electrical connector in each of which is mounted an insulation displacement contact.
  • the invention relates more particularly to the manual or automated connection of electrical wires in a generally parallelepipedal connector known as a multi-contact connector with integrated housing, interbays.
  • a generally parallelepipedal connector known as a multi-contact connector with integrated housing, interbays.
  • the shapes and dimensions of this type of connector are standardized, in particular according to the UTE C93-425 standard and / or according to the MS standard (military standard) 18268 published by the federal government of the UNITED STATES.
  • Connectors of this type include an insulating block, also of parallelepiped shape, which is enclosed between two shells forming a metal casing allowing attachment to a panel.
  • the housing adapted to an identical insulating block, is made of plastic.
  • the insulating block defines on its two opposite longitudinal faces two series of consecutive cells in each of which is disposed the rear part of an insulating displacement contact intended to be connected to a corresponding electrical wire.
  • the user can, by means of such a crimping pliers, successively make the connection of as many wires as is desirable in the corresponding cells by causing manually advancing the insulating body between the guide and support faces of the head.
  • Another crimping tool has also been proposed, comprising a device for advancing the connector housing step by step between the guide faces of the head.
  • the slider does not cut the wire to be connected automatically and prior to its insertion and it is therefore necessary that the user prepares in advance the end of each of the wires and comes to the introduce as far as possible into the insertion slot so that the free end of each wire is as close as possible to the bottom of the cell corresponding to the end of the operation.
  • the step-by-step feed device comprises a finger which is situated in a plane less than that of the insulating body of the connector and which therefore requires modifying the corresponding metal shell of the connector to form notches provided to cooperate with the finger.
  • the aim of the present invention is to propose a crimping tool, manual or automated, which makes it possible to simultaneously cut, insert and crimp each of the wires without the need to modify the metal shell of the connector while allowing automatic step-by-step advancement of the housing relative to the guide head.
  • the invention proposes a tool of the type defined above which comprises an automatic longitudinal advancing finger step by step of the connector which, prior to the cutting and insertion operations, is received in the cell opposite the slide and enters it into the region of said groove; means are provided for lateral erasure of the advance finger to allow the insertion of the wire into the cell.
  • FIG. 1 shows a crimping tool 10 consisting of a body 12 at the front part of which is formed a head 14 for supporting and guiding a connector (not shown), and the rear part 16 of which forms cooperation with an articulated lever 18 a means for actuating a cutting, insertion and crimping slide 20.
  • the slide moves under the action of the lever 18 in the plane of the figure.
  • the head 14 has two parallel flat support and guide faces 22 and 24 between which the insulating body of the connector is received in sliding fashion.
  • the two guide faces 22 and 24 each have a longitudinal shoulder 26 and 28 parallel and aligned in the same plane intended to be received in corresponding grooves of the insulating body of the connector.
  • the slide 20 is capable of projecting between the two faces 22 and 24 of the head 14 opposite means 30 for indexing in position of the connector relative to the head.
  • the shoulders 26 and 28 of the head 14 are received in two corresponding parallel grooves 38 and 39 of the insulating body 32.
  • the insulating body On its two opposite and parallel planar faces, the insulating body comprises a series of consecutive honeycombs 40.
  • Each cell receives the rear part of a contact 44 with displacement of insulator in which an electrical wire 46 is inserted and crimped, the free end 48 of which is received substantially against the bottom 50 of the corresponding cell. .
  • the grooves 38 and 39 are formed in the area opposite the bottom 50 of the cells.
  • the face 22 of the head 14 has a thread insertion slot 46 which is located between the free end edge of the slide 20 and the location provided for receiving the connector.
  • the head also includes a bezel 54 for introducing the wire 46 constituted by an insertion hole formed in a plate 56 so that the free lower end edge 57 of the slider forming a chopper cooperates with this bezel 54 to cut the wire 46 in the manner of a guillotine, the cutting being carried out substantially in the plane corresponding to the bottom 50 of the cells.
  • the hole of the wire cutting bezel 46 is disposed downstream of the face 22 if we consider the direction of actuation of the slide 20 indicated by the arrow A.
  • the means 30 for indexing in longitudinal position of the connector in the head are constituted by a finger which protrudes from the face 24 to be received in a cell opposite, the finger can be automatically erased inside the face 24 against a return spring which urges it.
  • FIGS. 5 and 6 show a simplified portion of the guide and support head modified in accordance with the teachings of the invention. The various components are shown there in solid lines in their rest position, other operating positions being shown in phantom.
  • the step-by-step advance means of the electrical connector comprise a flat frame 60 mounted to slide relative to the guide head in a direction parallel to the sliding direction A of the slide 20.
  • the frame 60 is for this purpose slidably mounted in a carriage 62 between the two grooves 64 and 66 of the latter which are formed in two lateral arms 68 and 70.
  • the lateral arms 68 and 70 define between them a space 72 open on the side of the front face of the carriage 62 whose role will be indicated below.
  • a compression spring is received between two parallel arms 74 and 76 formed at the rear part of the frame 60 and in an axial groove 78 of the carriage.
  • the compression spring 80 is held between the abutment surface 82 of the frame 60 and the surface 84 of the carriage 62 to axially bias the frame 60 in the direction indicated by the arrow A.
  • the maximum position of the frame 60 relative to the carriage 62 is defined by a stop tab 86 formed at the free end of the arm 74 which is received in axial travel in a corresponding recess 88 of the carriage.
  • the frame 60 has a substantially square central recess 90 which is arranged opposite the space 72 of the carriage 62 when the components are assembled and when they occupy their respective positions shown in particular in FIG. 6 in which the sliding frame is received between the carriage 62 and the underside 92 of the slide 20.
  • the frame 60 has on its front face 94 facing the insulating body of the connector, a stepwise advancing finger 96 whose free end edge 98 forms an angle at 45 ° relative to the general direction of the finger.
  • the finger 96 is, as can be seen in Figures 6 and 8, offset from the plane of the frame 62 and this upward when considering Figure 6 so as to be located above the underside of the slide 20 and to be able to be received in the groove opposite the connector.
  • the underside 102 of the carriage 62 comprises a rail 104 which extends in a direction B perpendicular to the direction A of sliding of the slide and which is received in a corresponding groove 106 formed in the guide and support head of the connector.
  • the carriage 62 can therefore move in direction B, causing the sliding frame 60 which can slide in its sliding movement. relative to the carriage 62 in direction A.
  • the cutting window 54 is, in this embodiment, constituted by an insert in the head of the pliers which defines an oblong insertion hole 56 and whose upper end face 108 is received with clearance in space 72 and in the recess 90 in order to be in contact with the lower face 92 of the slide 20, the front end edge 57 of which forms the wire cutting cleaver 46.
  • the recess 90 and the space 72 are of course dimensioned so that the cutting bezel 54 does not interfere with the movements of the frame 60 and the carriage 62.
  • control lug 112 which projects downwards from the underside of the slide 20 and which is received in a groove 114 forming a control cam which is produced in the upper face 116 of the carriage 62.
  • the profile of the control cam 114 successively comprises a first rectilinear portion 118 parallel to direction A which is extended by a second portion 120 inclined at 45 ° and which ends in a third rectilinear portion 122 parallel to direction A.
  • control pin 112 In the rest position, the control pin 112 is in its position 112 ′ shown in FIGS. 5 and 6. It is located at the start of the first portion 118 of the cam 114. In this position the free edge 100 ′ of the slide 20 is set back relative to the cutting bezel 54.
  • the lug 112 ′ When the user causes the displacement of the slide in direction A for example by means of a lever assembly 16, 18 or by means of a control jack, the lug 112 ′ first moves in the first portion 118 to cause the cutting the wire 46. The cutting is carried out when the lug reaches the position 112 ⁇ located substantially in the middle of the second inclined portion 120.
  • the penetration of the lug 112 in the inclined portion begins to cause the lateral displacement, to the left when considering FIG. 5, of the carriage 62 from its initial position 62 ′ to its final position 62 ⁇ .
  • the carriage drives the frame from its initial position 60 ′ to its final position 60 ⁇ .
  • the advance finger 96 cooperates by its inclined end edge 98 ′ with the left lateral edge 130 of the cell 40a located in the axis of the slide. This cooperation causes the frame and the finger to move back in relation to the carriage against the compression force exerted by the spring 80.
  • the simultaneous movements to the left of the frame 60 and of the carriage 62 continue until that the advance finger 96 ′ comes to occupy its position 96 ⁇ in the cell 40b.
  • the advance finger 96 is thus released from the path of the insertion slide 20 which can continue its race with the control lug 112 in the third portion 122 of the control cam until it reaches its maximum position 112 ′′′ which corresponds at position 100 ′′′ of the free front edge of the slide 20 inside the cell 40a after having inserted and crimped the wire 46.
  • the biasing force of the slide is due to a spring integrated in the clamp which stores energy when the lever 18 is actuated.
  • a double-acting pneumatic cylinder can be used.
  • the rectilinear lateral edge 132 and parallel to the direction A of the finger 96 cooperates with the opposite edge 134 of the socket 40b to drive the electrical connector laterally to the right over a stroke corresponding to the not separating two consecutive cells.
  • the indexing means in position 30 are erased in the direction A to allow the relative movement of the connector relative to the guide and support head.
  • the indexing device 30 comprises a double indexing finger 136 and 138.
  • the right lateral edge 140 of the indexing finger 138 is rectilinear and parallel to the direction A so as to be oppose any movement of the electrical connector to the left and this in particular during the backward movement and lateral erasure of the advance finger 96 when actuating the slide 20.
  • FIGS. 14 and 15 show an alternative embodiment of the frame 60.
  • the recess 56-90 therefore no longer needs to be broadly dimensioned in the direction B, the cam profile 114 being defined so that the cutting operation is carried out prior to the lateral movement of the carriage and the frame , that is to say before the lug enters the third portion 122 of the cam 114.
  • the frame 60 is provided on its lower face 140 with a force recovery tab 142 which comes to bear against a corresponding part (not shown) of the carriage 62.
  • the finger 96 may be longer and it is then necessary to provide a recess in the posterior branch 95 of the frame 60 so that it does not interfere with the lug in its position 112 ′′′.
  • the bottom 29 of the U of the head 14, the branches of which receive the faces 22 and 24, may include a retractable wedge to serve as a vertical support for housings of various heights and this in particular in the case where the groove 38, 40 is higher than shoulders 26 and 28.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Description

La présente invention est relative à un outil de coupe, d'insertion et de sertissage de fils électriques dans des alvéoles parallèles consécutifs d'un connecteur électrique dans chacun desquels est montés un contact à déplacement d'isolant.The present invention relates to a tool for cutting, inserting and crimping electrical wires in consecutive parallel cells of an electrical connector in each of which is mounted an insulation displacement contact.

L'invention concerne plus particulièrement le raccordement manuel, ou automatisé, des fils électriques dans un connecteur de forme générale parallélépipédique connu sous le nom de connecteur multi-contacts à boîtier intégré, interbaies. Les formes et les dimensions de ce type de connecteur sont normalisées, notamment selon la norme UTE C93-425 et/ou selon la norme MS (military standard) 18268 éditée par le gouvernement fédéral des ETATS-UNIS.The invention relates more particularly to the manual or automated connection of electrical wires in a generally parallelepipedal connector known as a multi-contact connector with integrated housing, interbays. The shapes and dimensions of this type of connector are standardized, in particular according to the UTE C93-425 standard and / or according to the MS standard (military standard) 18268 published by the federal government of the UNITED STATES.

Ces normalisations ont pour but de permettre le montage standard de ce type de connecteur notamment sur des panneaux de matériel électronique.The purpose of these standardizations is to allow standard mounting of this type of connector, in particular on panels of electronic equipment.

Les connecteurs de ce type comportent un bloc isolant de forme également parallélépipédique qui est enfermé entre deux coquilles formant un boîtier métallique en permettant la fixation sur un panneau. Dans une autre conception le boîtier, adapté sur un bloc isolant identique, est réalisé en matière plastique.Connectors of this type include an insulating block, also of parallelepiped shape, which is enclosed between two shells forming a metal casing allowing attachment to a panel. In another design, the housing, adapted to an identical insulating block, is made of plastic.

Le bloc isolant définit sur ses deux faces longitudinales opposées deux séries d'alvéoles consécutifs dans chacun desquels est disposée la partie arrière d'un contact à déplacement d'isolant prévu pour être raccordé à un fil électrique correspondant.The insulating block defines on its two opposite longitudinal faces two series of consecutive cells in each of which is disposed the rear part of an insulating displacement contact intended to be connected to a corresponding electrical wire.

On a déjà proposé une pince de coupe, d'insertion et de sertissage de fils électriques dans un tel connecteur.Pliers for cutting, inserting and crimping electrical wires have already been proposed in such a connector.

Cet outil à commande manuelle comporte :

  • une tête de guidage et de support du corps parallélépipédique isolant du connecteur, la tête comportant deux faces parallèles de guidage sur chacune desquelles est prévu un épaulement longitudinal reçu dans une rainure correspondante du corps isolant, chacune des rainures s'étendant en regard du fond des alvéoles à proximité duquel se terminent les fils insérés ;
  • un coulisseau qui est susceptible de se déplacer perpendiculairement à la direction des faces de guidage pour faire saillie hors de l'une de ces dernières à l'intérieur d'un alvéole de la face du connecteur en vis à vis de ladite face de la tête de façon que son extrémité libre effectue la coupe, puis l'insertion et le sertissage d'un fil préalablement introduit dans une fente d'introduction du fil formée dans la face de guidage et qui s'étend dans le plan de coulissement du coulisseau, la fente étant prolongée en-dessous du plan de guidage de la face inférieure du coulisseau par un trou d'introduction du fil, disposé en amont de la face de guidage en considérant la direction d'actionnement du coulisseau, de manière à former une lunette de coupe devant laquelle se déplace le bord inférieur libre du coulisseau formant couperet ; et
  • des moyens d'indexation en position longitudinale du bloc isolant formés dans l'autre desdites faces de guidage et qui coopèrent avec les alvéoles en vis à vis de la face du connecteur en regard.
This hand-operated tool includes:
  • a guide and support head for the insulating parallelepipedic body of the connector, the head comprising two parallel guide faces on each of which is provided a longitudinal shoulder received in a corresponding groove in the insulating body, each of the grooves extending opposite the bottom of the cells near which the inserted wires terminate;
  • a slide which is capable of moving perpendicular to the direction of the guide faces to project out of one of the latter inside a cell of the face of the connector opposite said face of the head so that its free end makes the cut, then the insertion and crimping of a wire previously introduced into a wire introduction slot formed in the guide face and which extends in the sliding plane of the slide, the slot being extended below the guide plane of the underside of the slide by a wire insertion hole, disposed upstream of the guide face, considering the direction of actuation of the slide, so as to form a telescope cutting in front of which the free lower edge of the slider slide moves; and
  • indexing means in the longitudinal position of the insulating block formed in the other of said guide faces and which cooperate with the cells facing the opposite face of the connector.

L'utilisateur peut, au moyen d'une telle pince de sertissage, réaliser successivement le raccordement d'autant de fils qu'il est souhaitable dans les alvéoles correspondants en provoquant manuellement l'avance du corps isolant entre les faces de guidage et de support de la tête.The user can, by means of such a crimping pliers, successively make the connection of as many wires as is desirable in the corresponding cells by causing manually advancing the insulating body between the guide and support faces of the head.

Il est donc nécessaire que l'utilisateur, par une opération indépendante, provoque manuellement l avance pas à pas, ceci ayant pour inconvénient de ralentir les opérations de sertissage.It is therefore necessary for the user, by an independent operation, to manually advance the feed step by step, this having the disadvantage of slowing the crimping operations.

Il a déjà également été proposé une autre pince de sertissage comportant un dispositif d'avance pas à pas du boîtier du connecteur entre les faces de guidage de la tête. Toutefois, dans cette pince de sertissage, le coulisseau ne réalise pas la coupe du fil à raccorder automatiquement et préalablement à son insertion et il est donc nécessaire que l'utilisateur prépare à l'avance l'extrémité de chacun des fils et vienne l'introduire le plus à fond possible dans la fente d introduction de façon à ce que l'extrémité libre de chaque fil soit la plus proche possible du fond de l'alvéole correspondant à l'issue de l'opération. De plus, dans ce type de pince de sertissage, le dispositif d'avance pas à pas comporte un doigt qui est situé dans un plan inférieur à celui du corps isolant du connecteur et qui nécessite donc de modifier la coquille métallique correspondante du connecteur pour y former des crans prévus pour coopérer avec le doigt.Another crimping tool has also been proposed, comprising a device for advancing the connector housing step by step between the guide faces of the head. However, in this crimping pliers, the slider does not cut the wire to be connected automatically and prior to its insertion and it is therefore necessary that the user prepares in advance the end of each of the wires and comes to the introduce as far as possible into the insertion slot so that the free end of each wire is as close as possible to the bottom of the cell corresponding to the end of the operation. In addition, in this type of crimping pliers, the step-by-step feed device comprises a finger which is situated in a plane less than that of the insulating body of the connector and which therefore requires modifying the corresponding metal shell of the connector to form notches provided to cooperate with the finger.

Il a déjà également été proposé une pince de sertissage comportant une roue d'indexation provoquant le déplacement latéral du connecteur (EP-A-0 032 616) et une pince de sertissage avec un levier pour deplacer le connecteur (EP-A-0 075 660).It has also already been proposed a crimping tool comprising an indexing wheel causing the lateral displacement of the connector (EP-A-0 032 616) and a crimping tool with a lever for moving the connector (EP-A-0 075 660).

La présente invention a pour but de proposer un outil de sertissage, manuel ou automatisé, qui permet d'effectuer simultanément la coupe, l'insertion et le sertissage de chacun des fils sans qu'il soit nécessaire de modifier la coquille métallique du connecteur tout en permettant l'avance automatique pas à pas du boîtier par rapport à la tête de guidage.The aim of the present invention is to propose a crimping tool, manual or automated, which makes it possible to simultaneously cut, insert and crimp each of the wires without the need to modify the metal shell of the connector while allowing automatic step-by-step advancement of the housing relative to the guide head.

Dans ce but l'invention propose un outil du type défini plus haut qui comporte un doigt d'avance longitudinal automatique pas à pas du connecteur qui, préalablement aux opérations de coupe et d'insertion, est reçu dans l'alvéole en regard du coulisseau et y pénètre dans la zone de ladite rainure; il est prévu des moyens d'effacement latéral du doigt d'avance pour permettre l'insertion du fil dans l'alvéole.For this purpose, the invention proposes a tool of the type defined above which comprises an automatic longitudinal advancing finger step by step of the connector which, prior to the cutting and insertion operations, is received in the cell opposite the slide and enters it into the region of said groove; means are provided for lateral erasure of the advance finger to allow the insertion of the wire into the cell.

Selon d'autres caractéristiques de l'invention :

  • le doigt est formé à l'extrémité d'un cadre plan monté coulissant dans la tête de guidage et de support parallèlement à un plan perpendiculaire à la direction des alvéoles, qui comporte un évidement d'introduction du fil et dont les déplacements dans son plan de coulissement par rapport à la tête sont commandés par un ergot faisant saillie depuis la face inférieure du coulisseau et qui est reçu dans un profil de came de commande ;
  • le cadre est monté coulissant selon une direction parallèle à celle du coulisseau dans un chariot de commande dans lequel est formé le profil de came de commande, le chariot étant monté coulissant par rapport à la tête selon une direction perpendiculaire à celle du coulisseau ;
  • le cadre est disposé entre le chariot et la face inférieure du coulisseau ;
  • il est prévu un ressort agencé entre le chariot et le cadre pour solliciter ce dernier de manière à provoquer la pénétration du doigt d'avance dans l'alvéole en regard du coulisseau, et il est prévu des moyens de butée limitant la course de cette pénétration ;
  • le chariot comporte deux bras antérieurs espacés latéralement qui définissent deux rainures de guidage du cadre, et il comporte un rail s'étendant sur sa face opposée à celle tournée vers le cadre et qui est reçu dans une rainure correspondante formée dans la tête de support et de guidage ;
  • le profil de came de commande comporte, dans le sens d'avancement du coulisseau, successivement une première portion parallèle à la direction de déplacement du coulisseau, une seconde portion inclinée à 45° par rapport à cette direction et qui provoque l'effacement latéral du doigt d'avance et une troisième portion parallèle à la première portion qui correspond à l'opération d'insertion et de sertissage du fil ;
  • le doigt d'avance comporte un bord latéral incliné qui coopère avec la paroi en vis à vis de l'alvéole en regard du coulisseau pour provoquer le recul du cadre par rapport au chariot à l'encontre de l'effort élastique exercé par le ressort pour permettre son effacement latéral sous l'action due au chariot.
  • l'évidement d'insertion constitue la lunette de coupe ;
  • l'évidement d'insertion est dimensionné de manière à laisser le passage avec jeu à une lunette de coupe dont la face supérieure est en contact avec la face inférieure du coulisseau et qui s'étend vers le bas dans la tête depuis cette face inférieure ;
  • la lunette de coupe est reçue avec jeu entre les bras du chariot ;
  • l' autre face de la tête de support et de guidage est munie de moyens escamotables s'opposant au recul du connecteur dans la direction opposée à celle de l'avance pas à pas.
According to other characteristics of the invention:
  • the finger is formed at the end of a planar frame mounted to slide in the guide and support head parallel to a plane perpendicular to the direction of the cells, which comprises a recess for introducing the wire and whose displacements in its plane sliding relative to the head are controlled by a lug protruding from the underside of the slider and which is received in a control cam profile;
  • the frame is slidably mounted in a direction parallel to that of the slider in a control carriage in which the control cam profile is formed, the carriage being slidably mounted relative to the head in a direction perpendicular to that of the slider;
  • the frame is arranged between the carriage and the underside of the slide;
  • there is provided a spring arranged between the carriage and the frame to urge the latter so as to cause the penetration of the advance finger into the cell opposite the slide, and stop means are provided limiting the travel of this penetration ;
  • the carriage has two laterally spaced front arms which define two grooves of frame guide, and it comprises a rail extending on its face opposite to that facing the frame and which is received in a corresponding groove formed in the support and guide head;
  • the control cam profile comprises, in the direction of advance of the slide, successively a first portion parallel to the direction of movement of the slide, a second portion inclined at 45 ° relative to this direction and which causes the lateral erasure of the advance finger and a third portion parallel to the first portion which corresponds to the operation of inserting and crimping the wire;
  • the advance finger has an inclined lateral edge which cooperates with the wall facing the socket opposite the slide to cause the frame to recede against the carriage against the elastic force exerted by the spring to allow its lateral erasure under the action due to the carriage.
  • the insertion recess constitutes the cutting bezel;
  • the insertion recess is dimensioned so as to leave the passage with clearance to a cutting bezel whose upper face is in contact with the lower face of the slide and which extends downwards in the head from this lower face;
  • the cutting bezel is received with clearance between the arms of the carriage;
  • the other face of the support and guide head is provided with retractable means opposing the recoil of the connector in the direction opposite to that of the stepwise advance.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :

  • la figure 1 est une vue latérale d'une pince de sertissage selon l'état de la technique ;
  • la figure 2 est une vue en perspective de la tête de guidage et de support de la pince de sertissage de la figure 1 ;
  • la figure 3 est une vue en coupe partielle selon le plan de coulissement du coulisseau de la tête de la figure 2 ;
  • la figure 4 est une vue en perspective à échelle agrandie d'une partie d'un connecteur électrique auquel s'applique l'outil selon l'invention ;
  • la figure 5 est une vue de dessus schématique et simplifiée des principaux composants de l'outil selon l'invention assurant la fonction d'avance automatique du conducteur ;
  • la figure 6 est une vue schématique simplifiée en coupe partielle selon la ligne 6-6 de la figure 5 ;
  • la figure 7 est une vue de dessus du cadre coulissant d'indexation ;
  • la figure 8 est une vue latérale de gauche du cadre représenté à la figure 7 ;
  • la figure 9 est une vue de dessus du chariot dans lequel est reçu le cadre coulissant ;
  • la figure 10 est une vue en coupe selon la ligne 10-10 de la figure 9 ;
  • la figure 11 est une vue de dessus de la lunette de coupe du fil ;
  • la figure 12 est une vue en coupe selon la ligne 12-12 de la figure 11 ;
  • la figure 13 est une vue de détail en perspective montrant la face de guidage de la tête dans laquelle est ménagé le dispositif d'avance pas à pas ; et
  • les figures 14 et 15 sont des vues similaires à celles des figures 7 et 8 représentant une variante de réalisation du cadre d'avance pas à pas.
Other features and benefits of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:
  • Figure 1 is a side view of a crimping pliers according to the prior art;
  • Figure 2 is a perspective view of the guide and support head of the crimping pliers of Figure 1;
  • Figure 3 is a partial sectional view along the sliding plane of the slide of the head of Figure 2;
  • FIG. 4 is a perspective view on an enlarged scale of a part of an electrical connector to which the tool according to the invention applies;
  • Figure 5 is a schematic and simplified top view of the main components of the tool according to the invention ensuring the automatic advance function of the driver;
  • Figure 6 is a simplified schematic view in partial section along line 6-6 of Figure 5;
  • Figure 7 is a top view of the sliding indexing frame;
  • Figure 8 is a left side view of the frame shown in Figure 7;
  • Figure 9 is a top view of the carriage in which is received the sliding frame;
  • Figure 10 is a sectional view along line 10-10 of Figure 9;
  • Figure 11 is a top view of the wire cutting bezel;
  • Figure 12 is a sectional view along line 12-12 of Figure 11;
  • FIG. 13 is a detailed perspective view showing the guide face of the head in which the step-by-step feed device is provided; and
  • Figures 14 and 15 are views similar to those of Figures 7 and 8 showing an alternative embodiment of the feed frame step by step.

On a représenté à la figure 1 une pince de sertissage 10 constituée d'un corps 12 à la partie avant duquel est formée une tête 14 de support et de guidage d'un connecteur (non représenté), et dont la partie arrière 16 forme en coopération avec un levier articulé 18 un moyen d'actionnement d'un coulisseau de coupe, d'insertion et de sertissage 20. Le coulisseau se déplace sous l'action du levier 18 dans le plan de la figure. La tête 14 comporte deux faces planes parallèles de support et de guidage 22 et 24 entre lesquelles est reçu en coulissement le corps isolant du connecteur.FIG. 1 shows a crimping tool 10 consisting of a body 12 at the front part of which is formed a head 14 for supporting and guiding a connector (not shown), and the rear part 16 of which forms cooperation with an articulated lever 18 a means for actuating a cutting, insertion and crimping slide 20. The slide moves under the action of the lever 18 in the plane of the figure. The head 14 has two parallel flat support and guide faces 22 and 24 between which the insulating body of the connector is received in sliding fashion.

Les deux faces de guidage 22 et 24 comportent chacune un épaulement longitudinal 26 et 28 parallèles et alignés dans un même plan prévu pour être reçu dans des rainures correspondantes du corps isolant du connecteur.The two guide faces 22 and 24 each have a longitudinal shoulder 26 and 28 parallel and aligned in the same plane intended to be received in corresponding grooves of the insulating body of the connector.

Le coulisseau 20 est susceptible de faire saillie entre les deux faces 22 et 24 de la tête 14 en regard de moyens 30 d'indexation en position du connecteur par rapport à la tête.The slide 20 is capable of projecting between the two faces 22 and 24 of the head 14 opposite means 30 for indexing in position of the connector relative to the head.

Comme on peut le constater notamment aux figures 2 à 4, le connecteur électrique dont on désire assurer le raccordement comporte notamment un bloc en matériau isolant 32 qui fait saillie hors d'une coquille métallique 34 qui, en coopération avec une seconde coquille métallique 36 forme le boîtier du connecteur électrique.As can be seen in particular in FIGS. 2 to 4, the electrical connector whose connection is to be ensured comprises in particular a block of insulating material 32 which projects out of a metal shell 34 which, in cooperation with a second metal shell 36 forms the electrical connector housing.

Les épaulements 26 et 28 de la tête 14 sont reçus dans deux rainures parallèles correspondantes 38 et 39 du corps isolant 32.The shoulders 26 and 28 of the head 14 are received in two corresponding parallel grooves 38 and 39 of the insulating body 32.

Sur ses deux faces planes opposées et parallèles, le corps isolant comporte une série d'alévoles consécutifs 40.On its two opposite and parallel planar faces, the insulating body comprises a series of consecutive honeycombs 40.

Chaque alvéole reçoit la partie arrière d'un contact 44 à déplacement d'isolant dans lequel on effectue l'insertion et le sertissage d'un fil électrique 46 dont l'extrémité libre 48 est reçue sensiblement contre le fond 50 de l'alvéole correspondant.Each cell receives the rear part of a contact 44 with displacement of insulator in which an electrical wire 46 is inserted and crimped, the free end 48 of which is received substantially against the bottom 50 of the corresponding cell. .

Comme on peut le constater aux figures, les rainures 38 et 39 sont formées dans la zone en regard du fond 50 des alvéoles.As can be seen in the figures, the grooves 38 and 39 are formed in the area opposite the bottom 50 of the cells.

La face 22 de la tête 14 comporte une fente d'introduction du fil 46 qui est située entre le bord libre d'extrémité du coulisseau 20 et l'emplacement prévu pour recevoir le connecteur. La tête comporte également une lunette 54 d'introduction du fil 46 constitué par un trou d'introduction formé dans une plaque 56 de manière à ce que le bord d'extrémité inférieure libre 57 du coulisseau formant couperet coopère avec cette lunette 54 pour couper le fil 46 à la manière d'une guillotine, la coupe s'effectuant sensiblement dans le plan correspondant au fond 50 des alvéoles.The face 22 of the head 14 has a thread insertion slot 46 which is located between the free end edge of the slide 20 and the location provided for receiving the connector. The head also includes a bezel 54 for introducing the wire 46 constituted by an insertion hole formed in a plate 56 so that the free lower end edge 57 of the slider forming a chopper cooperates with this bezel 54 to cut the wire 46 in the manner of a guillotine, the cutting being carried out substantially in the plane corresponding to the bottom 50 of the cells.

Le trou de la lunette de coupe du fil 46 est disposé en aval de la face 22 si l'on considère la direction d'actionnement du coulisseau 20 indiquée par la flèche A.The hole of the wire cutting bezel 46 is disposed downstream of the face 22 if we consider the direction of actuation of the slide 20 indicated by the arrow A.

Les moyens 30 d'indexation en position longitudinale du connecteur dans la tête sont constitués par un doigt qui fait saillie hors de la face 24 pour être reçu dans un alvéole en regard, le doigt pouvant s'effacer automatiquement à l'intérieur de la face 24 à l'encontre d'un ressort de rappel qui le sollicite.The means 30 for indexing in longitudinal position of the connector in the head are constituted by a finger which protrudes from the face 24 to be received in a cell opposite, the finger can be automatically erased inside the face 24 against a return spring which urges it.

On a représenté de manière simplifiée aux figures 5 et 6 une partie de la tête de guidage et de support modifiée conformément aux enseignements de l'invention. Les différents composants y sont représentés en traits pleins dans leur position de repos, d'autres positions de fonctionnement étant représentés en traits mixtes.FIGS. 5 and 6 show a simplified portion of the guide and support head modified in accordance with the teachings of the invention. The various components are shown there in solid lines in their rest position, other operating positions being shown in phantom.

Les moyens d'avance pas à pas du connecteur électrique comportent un cadre plan 60 monté coulissant par rapport à la tête de guidage selon une direction parallèle à la direction de coulissement A du coulisseau 20.The step-by-step advance means of the electrical connector comprise a flat frame 60 mounted to slide relative to the guide head in a direction parallel to the sliding direction A of the slide 20.

Le cadre 60 est à cet effet monté coulissant dans un chariot 62 entre les deux rainures 64 et 66 de ce dernier qui sont formées dans deux bras latéraux 68 et 70.The frame 60 is for this purpose slidably mounted in a carriage 62 between the two grooves 64 and 66 of the latter which are formed in two lateral arms 68 and 70.

Les bras latéraux 68 et 70 définissent entre eux un espace 72 ouvert du côté de la face antérieure du chariot 62 dont le rôle sera indiqué plus loin.The lateral arms 68 and 70 define between them a space 72 open on the side of the front face of the carriage 62 whose role will be indicated below.

Un ressort de compression est reçu entre deux bras parallèles 74 et 76 formés à la partie postérieure du cadre 60 et dans une rainure axiale 78 du chariot. Le ressort de compression 80 est maintenu entr la surface de butée 82 du cadre 60 et la surface 84 du chariot 62 pour solliciter axialement le cadre 60 dans la direction indiquée par la flèche A. La position maximale du cadre 60 par rapport au chariot 62 est définie par une patte de butée 86 formée à l'extrémité libre du bras 74 qui est reçue en débattement axial dans un évidement correspondant 88 du chariot.A compression spring is received between two parallel arms 74 and 76 formed at the rear part of the frame 60 and in an axial groove 78 of the carriage. The compression spring 80 is held between the abutment surface 82 of the frame 60 and the surface 84 of the carriage 62 to axially bias the frame 60 in the direction indicated by the arrow A. The maximum position of the frame 60 relative to the carriage 62 is defined by a stop tab 86 formed at the free end of the arm 74 which is received in axial travel in a corresponding recess 88 of the carriage.

Le cadre 60 comporte un évidement central sensiblement carré 90 qui est agencé en regard de l'espace 72 du chariot 62 lorsque les composants sont assemblés et qu'ils occupent leurs positions respectives représentées notamment à la figure 6 dans laquelle le cadre coulissant est reçu entre le chariot 62 et la face inférieure 92 du coulisseau 20.The frame 60 has a substantially square central recess 90 which is arranged opposite the space 72 of the carriage 62 when the components are assembled and when they occupy their respective positions shown in particular in FIG. 6 in which the sliding frame is received between the carriage 62 and the underside 92 of the slide 20.

Le cadre 60 comporte sur sa face antérieure 94 tournée vers le corps isolant du connecteur, un doigt d'avance pas à pas 96 dont le bord libre d'extrémité 98 forme un angle à 45° par rapport à la direction générale du doigt.The frame 60 has on its front face 94 facing the insulating body of the connector, a stepwise advancing finger 96 whose free end edge 98 forms an angle at 45 ° relative to the general direction of the finger.

Le doigt 96 est, comme on peut le constater aux figures 6 et 8, décalé par rapport au plan du cadre 62 et ceci vers le haut en considérant la figure 6 de manière à se situer au-dessus de la face inférieure du coulisseau 20 et à pouvoir être reçu dans la rainure en vis à vis du connecteur.The finger 96 is, as can be seen in Figures 6 and 8, offset from the plane of the frame 62 and this upward when considering Figure 6 so as to be located above the underside of the slide 20 and to be able to be received in the groove opposite the connector.

Compte tenu de cette définition géométrique, on comprend aisément qu'il est nécessaire que le doigt d'avance 96 puisse être effacé latéralement pour permettre l'insertion du fil 46 par le bord libre 100 du coulisseau 20.Given this geometric definition, it is easily understood that it is necessary for the advance finger 96 to be obliterated laterally to allow insertion of the wire 46 through the free edge 100 of the slide 20.

A cet effet la face inférieure 102 du chariot 62 comporte un rail 104 qui s'étend selon une direction B perpendiculaire à la direction A de coulissement du coulisseau et qui est reçu dans une rainure correspondante 106 formée dans la tête de guidage et de support du connecteur.To this end, the underside 102 of the carriage 62 comprises a rail 104 which extends in a direction B perpendicular to the direction A of sliding of the slide and which is received in a corresponding groove 106 formed in the guide and support head of the connector.

Le chariot 62 peut donc se déplacer selon la direction B en entraînant dans son mouvement de coulissement le cadre coulissant 60 qui peut lui coulisser par rapport au chariot 62 selon la direction A.The carriage 62 can therefore move in direction B, causing the sliding frame 60 which can slide in its sliding movement. relative to the carriage 62 in direction A.

La lunette de coupe 54 est, dans ce mode de réalisation, constituée par une pièce rapportée dans la tête de la pince qui définit un trou d'introduction oblong 56 et dont la face supérieure d'extrémité 108 est reçue avec jeu dans l'espace 72 et dans l'évidement 90 pour être en contact avec la face inférieure 92 du coulisseau 20 dont le bord d'extrémité avant 57 forme le couperet de coupe du fil 46.The cutting window 54 is, in this embodiment, constituted by an insert in the head of the pliers which defines an oblong insertion hole 56 and whose upper end face 108 is received with clearance in space 72 and in the recess 90 in order to be in contact with the lower face 92 of the slide 20, the front end edge 57 of which forms the wire cutting cleaver 46.

L'évidement 90 et l'espace 72 sont bien entendu dimensionnés de manière à ce que la lunette de coupe 54 n'interfère pas avec les déplacements du cadre 60 et du chariot 62.The recess 90 and the space 72 are of course dimensioned so that the cutting bezel 54 does not interfere with the movements of the frame 60 and the carriage 62.

La commande des déplacements du chariot 62 et du cadre 60 est effectuée grâce à un ergot de commande 112 qui fait saillie vers le bas depuis la face inférieure du coulisseau 20 et qui est reçu dans une rainure 114 formant came de commande qui est réalisée dans la face supérieure 116 du chariot 62.The movement of the carriage 62 and of the frame 60 is controlled by a control lug 112 which projects downwards from the underside of the slide 20 and which is received in a groove 114 forming a control cam which is produced in the upper face 116 of the carriage 62.

En considérant la direction d'actionnement A, le profil de la came de commande 114 comprend successivement une première portion rectiligne 118 parallèle à la direction A qui se prolonge par une seconde portion 120 inclinée à 45° et qui se termine par une troisième portion rectiligne 122 parallèle à la direction A.Considering the direction of actuation A, the profile of the control cam 114 successively comprises a first rectilinear portion 118 parallel to direction A which is extended by a second portion 120 inclined at 45 ° and which ends in a third rectilinear portion 122 parallel to direction A.

Le fonctionnement de l'outil qui vient d'être décrit est le suivant.The operation of the tool which has just been described is as follows.

Dans la position de repos, l'ergot de commande 112 est dans sa position 112′ représentée aux figures 5 et 6. Il est situé au début de la première portion 118 de la came 114. Dans cette position le bord libre 100′ du coulisseau 20 est en retrait par rapport à la lunette de coupe 54. Lorsque l'utilisateur provoque le déplacement du coulisseau selon la direction A par exemple au moyen d'un ensemble à leviers 16, 18 ou au moyen d'un vérin de commande, l'ergot 112′ se déplace d'abord dans la première portion 118 pour provoquer la coupe du fil 46. La coupe s'effectue lorsque l'ergot atteint la position 112˝ située sensiblement au milieu de la seconde portion inclinée 120.In the rest position, the control pin 112 is in its position 112 ′ shown in FIGS. 5 and 6. It is located at the start of the first portion 118 of the cam 114. In this position the free edge 100 ′ of the slide 20 is set back relative to the cutting bezel 54. When the user causes the displacement of the slide in direction A for example by means of a lever assembly 16, 18 or by means of a control jack, the lug 112 ′ first moves in the first portion 118 to cause the cutting the wire 46. The cutting is carried out when the lug reaches the position 112˝ located substantially in the middle of the second inclined portion 120.

La pénétration de l'ergot 112 dans la portion inclinée commence à provoquer le déplacement latéral, vers la gauche en considérant la figure 5, du chariot 62 depuis sa position initiale 62′ vers sa position finale 62˝. Au cours de ce déplacement latéral le chariot entraîne le cadre depuis sa position initiale 60′ vers sa position finale 60˝. Au cours de ce déplacement latéral le doigt d'avance 96 coopère par son bord d'extrémité inclinée 98′ avec l'arête latérale de gauche 130 de l'alvéole 40a situé dans l'axe du coulisseau. Cette coopération provoque le recul du cadre et du doigt d'avance par rapport au chariot à l'encontre de l'effort de compression exercé par le ressort 80. Les déplacements simultanés vers la gauche du cadre 60 et du chariot 62 se poursuivent jusqu'à ce que le doigt d'avance 96′ vienne occuper sa position 96˝ dans l'alvéole 40b. Le doigt d'avance 96 est ainsi dégagé du trajet du coulisseau d'insertion 20 qui peut continuer sa course avec l'ergot de commande 112 dans la troisième portion 122 de la came de commande jusqu'à atteindre sa position maximale 112‴ qui correspond à la position 100 ‴ du bord libre avant du coulisseau 20 à l'intérieur de l'alvéole 40a après avoir réalisé l'insertion et le sertissage du fil 46.The penetration of the lug 112 in the inclined portion begins to cause the lateral displacement, to the left when considering FIG. 5, of the carriage 62 from its initial position 62 ′ to its final position 62˝. During this lateral movement the carriage drives the frame from its initial position 60 ′ to its final position 60˝. During this lateral movement the advance finger 96 cooperates by its inclined end edge 98 ′ with the left lateral edge 130 of the cell 40a located in the axis of the slide. This cooperation causes the frame and the finger to move back in relation to the carriage against the compression force exerted by the spring 80. The simultaneous movements to the left of the frame 60 and of the carriage 62 continue until that the advance finger 96 ′ comes to occupy its position 96˝ in the cell 40b. The advance finger 96 is thus released from the path of the insertion slide 20 which can continue its race with the control lug 112 in the third portion 122 of the control cam until it reaches its maximum position 112 ‴ which corresponds at position 100 ‴ of the free front edge of the slide 20 inside the cell 40a after having inserted and crimped the wire 46.

Lorsque l'on relâche l'effort appliqué au coulisseau 20, celui-ci recule par rapport à la tête et l'ergot 112 parcourt la came de commande 114 en sens inverse provoquant le déplacement vers la droite du chariot 62 et du cadre 60 depuis la position 60˝ vers la position 60′.When you release the force applied to slide 20, the latter moves back with respect to the head and the lug 112 traverses the control cam 114 in the opposite direction causing the carriage 62 and the frame 60 to move to the right from position 60 position to position 60 ′.

L'effort de rappel du coulisseau est dû à un ressort intégré à la pince qui emmagasine de l'énergie lors de l'actionnement du levier 18. Dans le cas d'un outil automatisé on peut utiliser un vérin pneumatique à double effet.The biasing force of the slide is due to a spring integrated in the clamp which stores energy when the lever 18 is actuated. In the case of an automated tool, a double-acting pneumatic cylinder can be used.

Au cours de ce déplacement simultané vers la droite le bord latéral 132 rectiligne et parallèle à la direction A du doigt 96 coopère avec l'arête en regard 134 de l'alvéole 40b pour entraîner le connecteur électrique latéralement vers la droite sur une course correspondant au pas séparant deux alvéoles consécutifs.During this simultaneous movement to the right, the rectilinear lateral edge 132 and parallel to the direction A of the finger 96 cooperates with the opposite edge 134 of the socket 40b to drive the electrical connector laterally to the right over a stroke corresponding to the not separating two consecutive cells.

Au cours de ce déplacement du connecteur, les moyens d'indexation en position 30 s'effacent dans la direction A pour permettre le déplacement relatif du connecteur par rapport à la tête de guidage et de support.During this movement of the connector, the indexing means in position 30 are erased in the direction A to allow the relative movement of the connector relative to the guide and support head.

On peut constater à la figure 5 que le dispositif d'indexation 30 comporte un double doigt d'indexation 136 et 138. Le bord latéral de droite 140 du doigt d'indexation 138 est rectiligne et parallèle à la direction A de manière à s'opposer à tout déplacement du connecteur électrique vers la gauche et ceci notamment lors du mouvement de recul et d'effacement latéral du doigt d'avance 96 lors de l'actionnement du coulisseau 20.It can be seen in FIG. 5 that the indexing device 30 comprises a double indexing finger 136 and 138. The right lateral edge 140 of the indexing finger 138 is rectilinear and parallel to the direction A so as to be oppose any movement of the electrical connector to the left and this in particular during the backward movement and lateral erasure of the advance finger 96 when actuating the slide 20.

On a représenté aux figures 14 et 15 une variante de réalisation du cadre 60.FIGS. 14 and 15 show an alternative embodiment of the frame 60.

Dans ce mode de réalisation, il n'y a pas de lunette de coupe 54 proprement dite et c'est l'orifice oblong d'introduction 56-90 qui coopère directement avec le bord formant couperet du coulisseau 20 pour effectuer la coupe du fil 46 lors de la première partie du déplacement du coulisseau.In this embodiment, there is no cutting window 54 proper and it is the oblong orifice of introduction 56-90 which cooperates directly with the cutting edge of the slide 20 to cut the wire 46 during the first part of the movement of the slide.

L'évidement 56-90 n'a donc plus besoin d'être largement dimensionné selon la direction B, le profil de came 114 étant défini de manière à ce que l'opération de coupe soit effectuée préalablement au déplacement latéral du chariot et du cadre, c'est-à-dire avant que l'ergot ne pénètre dans la troisième portion 122 de la came 114.The recess 56-90 therefore no longer needs to be broadly dimensioned in the direction B, the cam profile 114 being defined so that the cutting operation is carried out prior to the lateral movement of the carriage and the frame , that is to say before the lug enters the third portion 122 of the cam 114.

Afin d'encaisser l'effort de coupe, le cadre 60 est muni sur sa face inférieure 140 d'une patte de reprise d'effort 142 qui vient en appui contre une partie correspondante (non représentée) du chariot 62.In order to collect the cutting force, the frame 60 is provided on its lower face 140 with a force recovery tab 142 which comes to bear against a corresponding part (not shown) of the carriage 62.

Afin de s'adapter à différentes dimensions de connecteur et notamment de rainures certaines variantes (non représentées) peuvent être apportées.In order to adapt to different connector dimensions and in particular grooves, certain variants (not shown) can be made.

Par exemple le doigt 96 peut être plus long et il est alors nécessaire de prévoir un évidement dans la branche postérieure 95 du cadre 60 pour qu'elle n'interfère pas avec l'ergot dans sa position 112‴.For example the finger 96 may be longer and it is then necessary to provide a recess in the posterior branch 95 of the frame 60 so that it does not interfere with the lug in its position 112 ‴.

De même le fond 29 du U de la tête 14 dont les branches reçoivent les faces 22 et 24, peut comporter une cale escamotable pour servir de support vertical à des boîtiers de diverses hauteurs et ceci notamment dans le cas où la rainure 38, 40 est plus haute que les épaulements 26 et 28.Likewise, the bottom 29 of the U of the head 14, the branches of which receive the faces 22 and 24, may include a retractable wedge to serve as a vertical support for housings of various heights and this in particular in the case where the groove 38, 40 is higher than shoulders 26 and 28.

Claims (12)

  1. Tool for cutting, inserting and crimping electric wires in consecutive parallel alveoli (40) in an electrical connector, in each of which an insulation-displacement contact is mounted, of the type including:
    - a head (14) for guiding and supporting the parallelepipedal insulating body (32) of the connector in which the alveoli (40) are formed, the head having two parallel guide faces (22, 24) on each of which is provided a longitudinal shoulder (26, 28) fitting into a corresponding recess (38, 39) in the insulating body, each of the recesses lying facing the bottom (50) of the alveoli in the proximity of which the inserted wires (46) terminate;
    - a slide (20) which is able to move at right angles to the direction (B) of the said guide faces (22, 24) so as to project out of one (22) of the latter inside an alveolus (40a) on the face of the connector facing the said face (22) of the head so that its free end (100) effects the cutting and then the insertion and crimping of a wire (46) previously inserted into a slot (52) for inserting the wire formed in the said guide face (22) and which extends in the sliding plane of the slide, this plane being at right angles to the direction B, the slot (52) being extended below the guide plane of the bottom face (92) of the slide (20) by a hole (56-90) for inserting the wire disposed upstream of the said guide face (22) as seen from the direction of actuation (A) of the slide (20), so as to form a cutting lunette (54) over which the bottom free edge (57) of the slide forming a cutter moves;
    - means (30) for locating the insulating block (32) in its longitudinal position, formed in the other one (24) of the said guide faces and which cooperate with the alveoli facing the opposite connector face;
    - a pin (96) for the automatic step-by-step longitudinal advancing of the connector with respect to the guide head which, before the cutting and insertion operations, is received in the alveolus (40a) opposite the slide (20) and enters therein in the region of the said recess (38); and
    - means (60, 62, 112, 114) for the lateral withdrawal of the advance pin (96) and means (60, 62, 112, 114, 98) for moving the advance pin (96) back with respect to the connector so as to allow the insertion of the wire (45) in the said alveolus (40a) and to allow the pin to occupy the next alveolus (40b).
  2. Tool according to Claim 1, characterised in that the pin (96) is formed at the end of a flat frame (60) mounted slidably in the guide and support head (14) parallel to a plane which includes an aperture (90) for inserting the wire and the movements of which in its sliding plane with respect to the head are controlled by a snug (112) projecting from the bottom face (92) of the slide and which is received in a control cam profile (114).
  3. Tool according to Claim 2, characterised in that the frame (60) is mounted so as to slide in a direction parallel to the direction (A) of the slide in a control carriage (62) in which the control cam profile (114) is formed, the carriage being mounted so as to slide with respect to the head (14) in a direction (B) at right angles to the direction (A) of the slide (20).
  4. Tool according to Claim 3, characterised in that the frame (60) is disposed between the carriage (62) and the bottom face (92) of the slide.
  5. Tool according to Claim 4, characterized in that a spring (80) is provided, arranged between the carriage (62) and the frame (60) in order to push the latter so as to cause the advance pin (96) to enter the alveolus (40a) opposite the slide (20), and in that stop means (86-88) are provided, limiting the travel involved in this entry.
  6. Tool according to any one of Claims 3 to 5, characterised in that the carriage (62) has two front arms (68, 70) spaced apart (72) laterally, which define two grooves (64, 66) for guiding the frame (60), and in that it has a rail (104) extending over its face (102) opposite to the one turned towards the frame and which fits into a corresponding groove (106) formed in the support and guide head (14).
  7. Tool according to any one of Claims 2 to 6, characterised in that the control cam profile (114) has, in the direction of advance of the slide, successively:
    - a first portion (118) parallel to the direction (A) of movement of the slide;
    - a second portion (120) sloping at 45° with respect to the said direction (A), which brings about the lateral withdrawal of the advance pin; and
    - a third portion (122) parallel to the first portion (118), which corresponds to the operation of inserting and crimping the wire.
  8. Tool according to any one of Claims 2 to 7, characterised in that the advance pin (96) has a sloping lateral edge (98) which cooperates with the facing wall (130) of the alveolus (40a) opposite the slide in order to bring about the backwards movement of the frame (60) with respect to the carriage (62) in opposition to the elastic force exerted by the spring (80) in order to allow its lateral withdrawal under the action due to the carriage (62).
  9. Tool according to any one of Claims 2 to 8, characterised in that the insertion aperture (56-90) constitutes the said cutting lunette (54).
  10. Tool according to any one of Claims 2 to 8, characterised in that the insertion aperture (90) is sized so as to allow passage with clearance for a cutting lunette (54), the top face of which is in contact with the bottom face (57) of the slide (20) and which extends downwards into the head (14) from this bottom face.
  11. Tool according to Claim 10 taken in combination with Claim 6 and one of Claims 7 or 8, characterised in that the cutting lunette (54) is received with clearance between the arms of the carriage (62).
  12. Tool according to one of Claims 2 to 11, characterised in that the other face (24) of the support and guide head has retractable means opposing the backwards movement of the connector in the direction opposite to the direction of the step-by-step advance.
EP19890403332 1988-12-19 1989-11-30 Cutting, inserting and crimping tool for insulation displacement-type electrical connectors Expired - Lifetime EP0375489B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8816745 1988-12-19
FR8816745A FR2640826B1 (en) 1988-12-19 1988-12-19 CUTTING, INSERTING AND CRIMPING TOOL FOR ELECTRICAL INSULATOR DISPLACEMENT CONNECTORS

Publications (2)

Publication Number Publication Date
EP0375489A1 EP0375489A1 (en) 1990-06-27
EP0375489B1 true EP0375489B1 (en) 1994-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890403332 Expired - Lifetime EP0375489B1 (en) 1988-12-19 1989-11-30 Cutting, inserting and crimping tool for insulation displacement-type electrical connectors

Country Status (4)

Country Link
EP (1) EP0375489B1 (en)
DE (1) DE68915720T2 (en)
ES (1) ES2056242T3 (en)
FR (1) FR2640826B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7444744B2 (en) 2005-04-14 2008-11-04 Panduit Corp. Tool for connectors assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832603A (en) * 1997-01-16 1998-11-10 Harris Corporation Method and wire termination tool for retaining wire in receptacle
US8418346B2 (en) * 2008-09-16 2013-04-16 Surtec Industries Inc. Wire termination tool and RJ jack for use therewith

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286381A (en) * 1979-12-21 1981-09-01 Amp Incorporated Terminating tool
DE3137209C2 (en) * 1981-09-18 1984-06-28 Reiner 3570 Stadtallendorf Rommel Wiring tool for wiring electrical, multi-pole connectors, plug strips or the like using clamp cutting technology

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7444744B2 (en) 2005-04-14 2008-11-04 Panduit Corp. Tool for connectors assembly
US8006372B2 (en) 2005-04-14 2011-08-30 Panduit Corp. Tool for connector assembly

Also Published As

Publication number Publication date
EP0375489A1 (en) 1990-06-27
DE68915720T2 (en) 1994-09-15
FR2640826B1 (en) 1991-04-05
FR2640826A1 (en) 1990-06-22
DE68915720D1 (en) 1994-07-07
ES2056242T3 (en) 1994-10-01

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