EP0613219B1 - Outil de câblage pour des conducteurs isolés - Google Patents

Outil de câblage pour des conducteurs isolés Download PDF

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Publication number
EP0613219B1
EP0613219B1 EP93119718A EP93119718A EP0613219B1 EP 0613219 B1 EP0613219 B1 EP 0613219B1 EP 93119718 A EP93119718 A EP 93119718A EP 93119718 A EP93119718 A EP 93119718A EP 0613219 B1 EP0613219 B1 EP 0613219B1
Authority
EP
European Patent Office
Prior art keywords
guide
contact
tool
rams
tool according
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.)
Expired - Lifetime
Application number
EP93119718A
Other languages
German (de)
English (en)
Other versions
EP0613219A1 (fr
Inventor
Friedrich Denter
Alfred Schmalz
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.)
3M Deutschland GmbH
Original Assignee
Quante GmbH
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 Quante GmbH filed Critical Quante GmbH
Publication of EP0613219A1 publication Critical patent/EP0613219A1/fr
Application granted granted Critical
Publication of EP0613219B1 publication Critical patent/EP0613219B1/fr
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

Definitions

  • the invention relates to an application tool (wiring tool) for insulated conductors, such as cable wires or installation wires for telecommunications, which are not electrically stripped in insulation displacement contacts, according to the preamble of claim 1.
  • insulation displacement contacts are arranged in rows in the insulating body, as are also described, for example, in EP-A 03 44 526. Different contact tools are known for the wiring of such contacts.
  • the active working part provided on the end of the handle has two parallel protruding, center-symmetrical plastic plunger, via which the wire is pressed during the application process before and after the insulation displacement contact.
  • a blade-shaped metal insert which extends between the two plastic plungers to the full height in the intermediate space engages in the contact slot in the working position and thereby presses the wire into the contact position in this area as well.
  • the excess wire lengths protruding from the insulating housing cannot be cut off with this tool, so that another tool is required.
  • the molded metal insert means that the tool has a two-part design, which makes it more expensive to produce than the simple tool described above. Due to the center-symmetrical design of the tool, it can be used on a cover, that is, regardless of how the tool is handled.
  • the shape of the two last-described insertion tools is not suitable for a high number of wires, since the handling with a contact pressure of 5 - 10 N, depending on the conductor diameter, leads to rapid fatigue in the hand. It is certainly not technically recommendable to have a metal insert in the tool To move slot of the insulation displacement contact, because due to the relatively long lever arm of the tool, the slot width and thus the quality of the insulation displacement slot of the connection contact can be changed adversely. Furthermore, it is difficult to assemble to cut off the excess wire length with a separate tool such as a side cutter, and there may still be a risk of electrical contact with the live conductor.
  • an insulation displacement contact is known from FR-A-2 195 083, which can be contacted with a wiring tool.
  • This wiring tool has two plungers which are arranged at a distance from one another and can be guided via an insulation displacement contact which is V-shaped in cross section.
  • a contact plunger is provided between these two plungers, the cross section of which is also V-shaped.
  • the object of the invention is to provide an application tool which is simple, inexpensive and versatile in production and handling.
  • the application tool shown in the figures is formed in one piece from plastic and has a handle part, at one end of which plungers with an intermediate passage for the connecting contact are provided at the end, at least one of the plungers being a guide plunger and the plunger length corresponding to the insertion depth of the cable cores. It is essential that identical, centrally symmetrical guide plungers are provided, and that a contact plunger is provided in the center in the space between the two guide plungers, the contact plunger being significantly longer than that of the guide plungers.
  • the contact plunger When the tool is inserted into the receiving chamber of the insulating housing, the contact plunger along the long contact spring arm of the connection contact, which has the insulation displacement slot in its middle section and an inlet and in its overlying, upper section Has guide section, guided until one of the two guide plungers engages in the upper insertion slopes of the chamber and takes over the positive guidance of the tool. In doing so, the contact plunger will first gently press down the cable wire inserted in the insertion slots of the insulating material housing until it is pressed into the contact insulation displacement slot. By immersing the contact plunger further, the wire is pressed into contact with a shearing edge of the shorter arm of the connection contact.
  • the guide plunger presses the wire part located on the other side of the insulation displacement slot downward into the corresponding clamping slot of the insulating material housing, so that the wire is securely clamped in the insulating material housing.
  • the wire With further penetration of the guide plunger and at the same time the contact plunger, the wire is pressed deeper into the clamping slot of the housing and into the insulation displacement slot of the connection contact, the contacting taking place at the same time by cutting the insulation jacket of the wire on both sides except for its metal core.
  • the wire held in the clamping slots is sheared off by the interaction of the contact plunger with the shearing edge, the excess wire length falling out of the guide slot of the housing lying on the side of the shearing edge.
  • the other, free-standing wire end clamped in the insulation displacement slot is pressed downward in a hook-shaped manner by the guide plunger, as a result of which the wire is applied in a contact-safe manner after the tool has been withdrawn.
  • the contact plunger has essentially the shape of a blade of a screwdriver, since the connection blocks with which the tool according to the invention is used are designed for actuation or connection with screwdrivers of a certain size.
  • the inexpensive application tool according to the invention e.g. a junction box is attached, since in the rarest cases a suitable screwdriver is available for actuating stripped contacts in the household.
  • the length difference between guide and contact plungers is designed such that when the wire is pressed sufficiently deep into the clamping slot of the connection block and in the contact slot of the connection contact by the guide plunger, the tip of the contact plunger at the Insulation body provided stop shoulder.
  • the application or wiring process is to be regarded as complete when the tool is in contact with the contact plunger on the stop shoulder of the housing, so that the tool is simply inserted up to the stop without a special feeling for an insertion depth having to be taken into account.
  • the excess wire length can also be removed loosely.
  • the guide plungers have steps on both sides at their upper, outward-facing end, thereby forming a guide wall whose thickness is less than the width of the clamping slot of the insulating material housing.
  • the guide plunger engages in the housing clamping slot, as a result of which the wire is pressed particularly well into the clamping slot by the guide plunger and is thus clamped.
  • the height of the guide wall corresponds to the insertion height or depth of the wire in the clamping slot, the vertical transition of the wall at its base into the wider section of the contact plunger in its shape corresponding to the taper of the lead-in chamfer of the clamping slot of the housing, which at the same time increases the strength the guide wall and thus a greater break resistance of the tool is achieved.
  • narrow, wall-shaped connecting webs are provided in the spaces between the three plungers at partial space height, which, in the inserted state, extend into the inlet bevels of the guide slot of the housing.
  • a decoupling hook is formed on the narrow face of the tool handle. This protrudes horizontally in the insertion working position so that it is not a hindrance during the wiring process.
  • the handle is kept essentially 90 ° out of balance and the desired wire is grabbed on the outside next to the housing with the hook and pulled or lifted out of the clamp.
  • the one-piece design provides the advantage that, in addition to the inexpensive design, the user does not have to swivel a corresponding tool out of the tool handle before switching off a wire, as with the complex tool from the Krone company, but this is ready for use on the active side of the tool.
  • the outer “tip”, that is to say the outer, horizontally protruding end of the disconnection hook, is designed as a screwdriver tip. This means that another, possibly occurring work step can be carried out quickly and easily using the same tool.
  • the handle body is plate-shaped, with an outer conversion projecting on both sides from the plate surface, which is designed such that a substantial broadening of the conversion takes place from the active work side to the handle and pressure side.
  • This conversion broadening should be designed so wide at the upper end of the handle that it fits snugly in the palm of the hand, whereby the necessary wiring pressure can easily be exerted without fatigue of the operator's hand even with a higher number of wiring.
  • the tool according to the invention is thus a one-piece tool that can be rotated without much consideration on the cover, does not engage in the contact slot of the insulation displacement contact and yet creates the wire very securely and also during the wiring for a separation of the excess wire length worries.
  • the invention is explained in more detail below using an exemplary embodiment with reference to the drawing.
  • the application tool essentially consists of a handle 1, on one end of which an active working end 2 is provided.
  • the handle 1 has a flat handle plate which is symmetrical about a longitudinal axis.
  • the handle plate 3 is designed so that it rests well in the palm of the hand with its upper roundings, while indentations 4 are provided at its lower end for holding with the fingers.
  • the handle plate 3 is surrounded on both sides with a symmetrically protruding pressure conversion 6, which, as can be seen particularly well from FIG. 2, tapers uniformly in height from the upper pressure side lying in the palm of the hand to the axially perpendicular end wall 8 is.
  • the upper, broad pressure side is selected so that the tool lies comfortably in the hand, while the lower, narrow end wall does not prevent the operating field from being seen.
  • transverse walls 7 are drawn in, in particular in the force-active zones.
  • the active working end 2 is arranged on the outer side of the end wall 8 and essentially axially symmetrical educated. It has two guide plungers 10 which are spaced apart from one another with respect to the center axis, that is to say have an intermediate space, it being possible to say that the two guide plungers 10 together form essentially a U-shaped part, as can be seen particularly clearly from FIG. 8 .
  • the two guide plungers 10 are stepped at their outer ends, in each case facing outward, axially symmetrically in depth on both sides, so that a thin guide wall 11 is formed.
  • the thickness of this guide wall 11 is such that it can be inserted without jamming into a clamping slot of the insulating body of a terminal block 15 described below.
  • the guide walls 11 go in axial or. Vertical direction through transition bevels 12 into the body of the guide plunger 10, so that the guide walls 11 are hereby reinforced on their base side.
  • each connecting webs 9 are drawn at partial height, which serves on the one hand to reinforce the plunger and to additionally guide the working end 2, since they are designed so that the webs in the insertion slot 26 of the contact arm 24 or engages in the through slot 19 of the left wall.
  • a contact plunger 13 is arranged centrally and at the same time axially symmetrically, which is tapered downwards in the plane transverse to the longitudinal extension of the connection block, which is also the plane of the drawing, while it has parallel walls in the plane perpendicular to it , as 2 and 3 can be seen in particular. Overall, it has a similar design as the tip of a screwdriver.
  • connection block 15 In order to be able to describe the function of the tool according to the invention, the structure of a known connection block 15 is described in broad outline with reference to the illustration in FIGS. 8 and 9.
  • the connection block 15 shown in FIGS. 8 and 9 consists of an insulating body 16 made of plastic, in the interior of which longitudinally transverse receiving chambers 18 are provided in the interior, in which metal connection contacts 17 are firmly inserted.
  • the insulating body 16 has a receiving slot 18 essentially on the longitudinal wall sides on the one hand a relatively wide through slot 19 which is wider than a cable wire 20 to be inserted and on the other side a narrow clamping slot 21 which is designed so that it has a vertically pressed cable wire on it Insulating jacket holds tight. Both slots 19 and 21 each have chamfers on the top for easier insertion of the cable core.
  • connection contact 17 is essentially U-shaped, a shorter, essentially straight upward-pointing holding arm 22 being provided on the side of the through-slot 19, which is pointed inwards at its upper end, as a result of which a shearing edge 23 is formed.
  • the resilient contact arm 24 is provided as the second arm of the connection contact 17, which essentially has an S shape and to which the clamping slot 21 is assigned.
  • a guide surface 25 is formed through the upper arch of the S shape formed, along which along the contact plunger 13 when it plunges into the terminal block with its right flank 14 in FIG. 8.
  • the contact arm 24 is slotted from above, the upper slot part being a downwardly tapering insertion slot 26 which merges into a cutting, narrow contact slot 27 in the lower part of the upper S-curve.
  • the contact slot 27 is designed such that it cuts the sheathing on both sides as far as the metal core when a core 20 is pressed in vertically, thus establishing contact with it.
  • a support surface 28 is provided on the one hand at the bottom of the through-slot 19, which serves to support the wire 20 during shearing at the shear edge 23.
  • a depth stop shoulder 29 lying further inward is provided on the left wall, up to which the contact plunger 13 is pushed as far as it will go or pushed in during its wiring activity.
  • FIGS. 8 and 9 illustrate two successive phases of this process.
  • the wiring tool is only immersed with the tip of its contact plunger 13 into the interior of the insulating body 16 of the connection block 15, that is to say in the receiving chamber 18 thereof.
  • the immersion takes place essentially in the middle in the space between the wall with the through slot 19 and the upper end of the contact arm 24.
  • a cable wire 20 was inserted or placed in the corresponding insertion slot transversely to the insulating body, so that the wire is practically depressurized down to the depth position shown in FIG. 8. From this position, when the tool is guided further downward, the guide plunger 10 on the right in FIG.
  • the contact plunger 13 will guide the wire 20 downward, the contact plunger 13 with its flank 14 sliding along the guide surface 25 of the contact arm 24 and at the same time pressing the wire into the contact slot 27. At the same time, the wire 20 is also drawn into the clamping slot 21 of the right wall of the insulating body 16.
  • the wire 20 When the tool is immersed further, the wire 20 will rest on the contact surface 28 and the shear edge 23 and when the contact plunger 13 penetrates further into the depth, the wire 20, which is held in the clamping slot 21 and in the contact slot 27, becomes at the shear edge 23 sheared or cut through, this process being intensified by the section of the contact slot leading obliquely downward to the right.
  • the tool then plunges further into the insulating body 16 until the contact plunger abuts the depth stop shoulder 29 frontally.
  • the right-hand guide plunger 10 is also immersed in the interior of the insulating body via the corresponding lead-in chamfer, the guide wall 11 being immersed in the clamping slot 21 when it is immersed further slides in and since the wire 20 also presses into the clamping slot 21, as can be seen in particular in FIG. 9.
  • the sheared end of the contacted wire 20 is taken along by the contact plunger 13 and bent downward, so that it bears in an arc shape on the contact slot 27, as a result of which an even more secure positioning of the wire in the connection block is achieved.
  • the separated excess wire length 31 falls out of the insulating body 16 through the through-slot 19, at the latest when the tool is subsequently pulled out of the terminal block.
  • a pull-out or release hook extending the end wall is formed on one side of the end wall 8.
  • This hook is designed to be much thinner than the wall in this zone (FIG. 5) in order to be able to grip well between the cable wires which are relatively close together in the connection block and to pull them out of the connection block.
  • FIG. 6 shows the pull-out or release hook 31 'in an enlarged form, it being evident that the hook end 32 forms a pull-out opening 33 which is based on the diameter of the cable wires 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (9)

  1. Outil de pose pour établir le contact électrique de conducteurs de câble (20) non dénundés, dans des contacts coupants à serrage, qui comportent un contact de connexion (17) présentant une fente de contact (27), et un corps isolant (16) présentant une fente de serrage (21),
    - outil, qui est moulé d'un seul tenant en matière plastique, et
    - qui présente une partie formant poignée (1) à une extrémité (2) de laquelle sont formés par moulage, côté frontal, deux poussoirs (10) à passage pour le contact de connexion (17), l'un des poussoirs étant un poussoir de guidage qui enfonce le conducteur de câble (20) dans le contact coupant à serrage,
    caractérisé
    - en ce que sont prévus deux poussoirs de guidage (10) sensiblement identiques, disposés à distance l'un de l'autre, symétriquement par rapport au centre, et
    - en ce que de manière centrée entre les deux poussoirs de guidage (10), est prévu un poussoir de contact (13) symétrique par rapport à l'axe, et dont la longueur est sensiblement plus grande que la longueur des poussoirs de guidage (10).
  2. Outil de pose selon la revendication 1, caractérisé en ce que le poussoir de contact (13) présente sensiblement la forme d'une pointe de tournevis.
  3. Outil de pose selon la revendication 1, caractérisé en ce que la différence de longueur entre les poussoirs de guidage et de contact (10, 13) est choisie de manière telle, que la pointe du poussoir de contact (13) s'appuie sur un épaulement formant butée de profondeur (29) prévu dans le corps isolant (16), lorsque le conducteur de câble (20) est enfoncé par les poussoirs de guidage (10), dans la fente de serrage (21) et dans la fente de contact (27).
  4. Outil de pose selon la revendication 1, caractérisé en ce que les poussoirs de guidage (10) présentent chacun, à leur extrémité supérieure, extérieure, un décrochement des deux côtés, de sorte qu'il en résulte pour chaque poussoir de guidage, une mince paroi de guidage (11).
  5. Outil de pose selon la revendication 4, caractérisé en ce qu'un biseau de raccordement (12) est prévu dans la direction verticale, entre la paroi de guidage (11) et la partie de poussoir de guidage située verticalement au-dessus.
  6. Outil de pose selon la revendication 1, caractérisé en ce que dans les espaces intermédiaires entre les deux poussoirs de guidage (10) et le poussoir de contact (13), sont prévues des nervures de liaison (9) en forme de paroi.
  7. Outil de pose selon la revendication 1, caractérisé en ce qu'au petit côté frontal (8) de la poignée (1) de l'outil, est formé d'un seul tenant, par moulage, un crochet d'extraction ou de déconnexion (31').
  8. Outil de pose selon la revendication 7, caractérisé en ce que l'extrémité extérieure du crochet d'extraction ou de déconnexion (31'), est réalisée sous la forme d'une pointe de tournevis (34).
  9. Outil de pose selon la revendication 1, caractérisé en ce que la poignée (1) comprend une plaque de poignée (3) plate, qui présente à sa périphérie extérieure, une paroi périphérique (6) en faisant saillie de part et d'autre de manière symétrique, en ce que la paroi périphérique est formée par moulage de manière telle, que soit prévu un élargissement de paroi périphérique de préférence d'au moins un facteur cinq, à partir du côté de travail actif (2) en direction du côté supérieur d'appui, et en ce qu'une paroi intermédiaire horizontale (7) de renfort est formée par moulage sur ladite plaque de poignée.
EP93119718A 1993-02-26 1993-12-07 Outil de câblage pour des conducteurs isolés Expired - Lifetime EP0613219B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9302866U 1993-02-26
DE9302866U DE9302866U1 (de) 1993-02-26 1993-02-26 Anlegewerkzeug für isolierte Leiter

Publications (2)

Publication Number Publication Date
EP0613219A1 EP0613219A1 (fr) 1994-08-31
EP0613219B1 true EP0613219B1 (fr) 1996-04-17

Family

ID=6889952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119718A Expired - Lifetime EP0613219B1 (fr) 1993-02-26 1993-12-07 Outil de câblage pour des conducteurs isolés

Country Status (3)

Country Link
EP (1) EP0613219B1 (fr)
AT (1) ATE137069T1 (fr)
DE (1) DE9302866U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746219B1 (fr) * 1996-03-18 1998-05-07 Auxiliaire de connexion et/ou deconnexion de liaison(s) pour module de raccordement et alignement de modules de raccordement identiques ou similaires d'un ensemble et ensemble modulaire de raccordement correspondant
ES2199694B1 (es) * 1999-07-21 2004-12-01 Tyco Electronics Raychem, S.A. Accesorio conector para banda de conexion de cables de telefono.
WO2001006597A2 (fr) * 1999-07-21 2001-01-25 Mondragon Telecommunications S.L. Accessoire de connecteur pour bande de connexion de cable telephonique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824527A (en) * 1972-08-03 1974-07-16 Amp Inc Wire-in-slot electrical connections
BR7706578A (pt) * 1976-10-07 1978-08-22 Bunker Ramo Conector eletrico com parede recurvada para perfurar o isolamento ferramenta e processo para o produzir
DE3522131A1 (de) * 1985-06-18 1986-12-18 Krone Gmbh, 1000 Berlin Verfahren und vorrichtung zum anschliessen und verbinden von kabeladern
DE3818497C5 (de) * 1988-05-31 2005-05-25 Quante Ag Anschlußblock für eine Kabelabschlußeinheit

Also Published As

Publication number Publication date
ATE137069T1 (de) 1996-05-15
EP0613219A1 (fr) 1994-08-31
DE9302866U1 (de) 1993-06-24

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