EP1531525B1 - Cable clamp with enlarged clamping surface and terminal block comprising it - Google Patents

Cable clamp with enlarged clamping surface and terminal block comprising it Download PDF

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Publication number
EP1531525B1
EP1531525B1 EP04356170A EP04356170A EP1531525B1 EP 1531525 B1 EP1531525 B1 EP 1531525B1 EP 04356170 A EP04356170 A EP 04356170A EP 04356170 A EP04356170 A EP 04356170A EP 1531525 B1 EP1531525 B1 EP 1531525B1
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EP
European Patent Office
Prior art keywords
stirrup
cable
branches
abutment
electric
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 - Fee Related
Application number
EP04356170A
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German (de)
French (fr)
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EP1531525A1 (en
Inventor
Franck Da Silva
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ABB France SAS
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ABB France SAS
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Publication of EP1531525A1 publication Critical patent/EP1531525A1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks

Definitions

  • the present invention relates to a cable clamp device for blocking an electric cable relative to a support outside the device.
  • the support outside the device is in particular formed by an electrical junction block which is intended to allow the electrical connection of the end of an electrically conductive cable by the so-called screwed / screwed technique.
  • the present invention aims to overcome the aforementioned drawbacks by providing a cable clamp device in which the cable is better held in position, without increasing the number of component parts of the device.
  • the subject of the present invention is a device according to claim 1.
  • the contact face of the conductive abutment is intended to bear against the conductor cable several points, and not only in one as in the state of the art.
  • the device also makes it possible to firmly tighten cables of reduced diameter.
  • the projection of the openings on a plane perpendicular to the branches of the stirrup and in a direction substantially parallel to the branches is of substantially rectangular shape, whose length is less than the width of the band of the stirrup.
  • the electrically conductive stop is constituted by a connecting strip of an electrical junction block.
  • the outer support is formed by a body of insulating material constituting the electrical terminal block.
  • the present invention further relates to an electrical terminal block comprising a body of insulating material in which are formed electrical connection openings, at least one cable clamp device according to any one of the aforementioned features being implanted in at least one of the electrical connection openings.
  • the cable clamp device 1 shown, according to a first embodiment of the invention, figure 1 is adapted to lock in position an electrical cable to establish an electrical connection with another conductive element.
  • This device is in particular intended to be implanted in an electrical terminal block whose insulating body houses electrical connection elements such as a link bar.
  • This bar has for example function to put the same potential several electrically conductive elements.
  • Such a terminal block is well known in the state of the art and is not here described in detail, nor represented.
  • the cable clamping device 1 comprises, in a manner known per se, a stirrup 2 in which an electrically conducting abutment 10 is housed.
  • This abutment 10 takes for example the shape of a section of the aforementioned connecting bar.
  • the stirrup 2 is formed of two branches 3 and 4 which extend substantially parallel to each other in a direction XX, as well as a curved bottom 5 which connects the two branches 3, 4. opposite the bottom 5, these two branches 3 and 4 respectively have free ends 5 and 6.
  • the stirrup 2 has a general shape of U. It is shaped in a strip of flat material whose width is predetermined. The branches 3 and 4 are longer than the width of the stirrup 2.
  • the electrically conductive stop 10 is located between the two branches 3 and 4 of the yoke.
  • This stop 10 is of generally parallelepipedal shape and has a first face 11 facing the free ends 5 and 6 of the branches 3, 4, and a second opposite face 12 facing the curved bottom 5 of the stirrup 2.
  • the second face 12 is an electrical contact face with the conductive cable 8 to establish an electrical connection with this cable when the stop is pressed against it, in the bottom 5 of the caliper.
  • the cable tie device 1 comprises, in the usual manner, drive means (not shown) which make it possible to obtain the relative movement of the stirrup 2 with respect to the stop 10 for, or to bring the bottom 5 in the direction of the stop, and thus tighten the cable in the bottom, or on the contrary spread the bottom 5 of the abutment 10, that is to say cause the bringing the free ends 5, 6 of the branches 3, 4 closer to the stop 10, and thus loosening the cable 8.
  • These drive means are, for example, nut means which, by screwing the nut, cause the stirrup 2 to move in the direction of tightening the cable.
  • the caliper reciprocates in translation in the direction parallel to the X-X axis, perpendicular to the plane defined by the first face 11 of the abutment 10.
  • the contact face 12 of the abutment 10 is of concave shape whose concavity is turned towards the bottom 5 of the stirrup 2.
  • the cable 8 is brought into contact with this face 12 at several points, which ensures a better maintenance of this cable.
  • the contact face 12 takes the form of a chute having a central core 15 which is substantially flat and parallel to the first face 11, as well as two inclined faces 17 and 18 which extend from this core. diverging towards the bottom 5 of the stirrup.
  • the cable 8 can thus during clamping, come into abutment with one or both inclined faces and / or with the central core according to the diameter of this cable.
  • the inclined faces 17 and 18 are of width less than the width of the stirrup 2.
  • the cable 8 represented at figure 1 is the cable of larger diameter that can clamp the device 1 since the ends of the inclined faces 17 and 18 are in abutment against the bottom 5 of the yoke 2.
  • the larger diameter cable that can be immobilized in the caliper is one which has a diameter close to the value of the mutual spacing of the two branches 3 and 4 of this caliper (such as the cable 24 shown in FIG. figure 2 ).
  • the cable clamp device 20 according to a second embodiment shown in FIGS. Figures 2 to 4 is used.
  • the cable clamp device 20 differs from the device 1 in that two openings 21 and 22 are formed in the bottom 5 of the stirrup 2 being respectively located vertically above the inclined faces 17 and 18 of the contact face 12 the stop 10.
  • the dimensions of the openings 21 and 22 are adapted so that the inclined faces 17 and 18 penetrate at least partially into these openings when the bottom 5 is brought closer to the stop 10 (FIG. figure 4 ).
  • the projection of the openings 21 and 22 on a plane perpendicular to the branches 3, 4 (or parallel to the first face 11 of the abutment), and in a direction substantially parallel to the axis XX, is of substantially rectangular shape.
  • the length of this rectangle is less than the width of the stirrup 2, as is more particularly visible in the figure 3 .
  • a cable 26 of reduced diameter is blocked in the bottom 5 of the caliper ( figure 4 ) and the ends of the inclined faces 17 and 18 pass through the openings 21 and 22 to project outside the stirrup 2.
  • stirrup figure 1 in which the ends of the inclined faces are adjacent to the bottom of this stirrup.

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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Clamps And Clips (AREA)
  • Installation Of Indoor Wiring (AREA)

Description

La présente invention est relative à un dispositif de serre-câble pour bloquer un câble électrique par rapport à un support extérieur au dispositif.The present invention relates to a cable clamp device for blocking an electric cable relative to a support outside the device.

Le support extérieur au dispositif est en particulier formé par un bloc de jonction électrique qui est destiné à permettre le raccordement électrique de l'extrémité d'un câble électriquement conducteur par la technique dite vissé/vissé.The support outside the device is in particular formed by an electrical junction block which is intended to allow the electrical connection of the end of an electrically conductive cable by the so-called screwed / screwed technique.

Les dispositifs serre-câble habituellement rencontrés sont du type comprenant :

  • un étrier qui comporte deux branches sensiblement mutuellement parallèles, et un fond courbe reliant lesdites deux branches, le câble électrique étant destiné à être logé dans le fond de l'étrier,
  • une butée électriquement conductrice qui est montée entre les deux branches et qui comprend une face de contact destinée à venir en appui avec le câble électrique, et
  • des moyens d'entraînement qui permettent de provoquer le déplacement de l'étrier par rapport à la butée conductrice pour alternativement rapprocher et écarter le fond et la butée, ces moyens d'entraînement étant destinés à permettre le serrage sélectif du câble électrique entre le fond de l'étrier et la face de contact de la butée conductrice.
The cable clamp devices usually encountered are of the type comprising:
  • a stirrup which comprises two branches substantially mutually parallel, and a curved bottom connecting said two branches, the electric cable being intended to be housed in the bottom of the stirrup,
  • an electrically conductive stop which is mounted between the two branches and which comprises a contact face intended to abut with the electric cable, and
  • drive means which make it possible to cause the stirrup to move relative to the conductive stop so as to bring the base and the abutment closer together and away, these drive means being intended to allow the selective tightening of the electric cable between the bottom the stirrup and the contact face of the conductive stop.

Même si de tels dispositifs donnent entière satisfaction quant au raccordement électrique lui-même du câble conducteur, ces dispositifs présentent néanmoins l'inconvénient de ne pas maintenir fermement en position le câble, et en particulier lorsque le câble à raccorder est de diamètre important par rapport aux dimensions de la butée conductrice. Le document US 6 011 218A décrit un dispositif correspondant au préambule de la revendication 1.Even if such devices give complete satisfaction as to the electrical connection itself of the conductive cable, these devices nevertheless have the disadvantage of not holding the cable firmly in position, and in particular when the cable to be connected is of large diameter relative to to the dimensions of the conductive stop. The document US 6,011,218A describes a device corresponding to the preamble of claim 1.

La présente invention a pour but de remédier aux inconvénients précités en fournissant un dispositif serre-câble dans lequel le câble est mieux maintenu en position, et ce sans augmenter le nombre de pièces constitutives du dispositif.The present invention aims to overcome the aforementioned drawbacks by providing a cable clamp device in which the cable is better held in position, without increasing the number of component parts of the device.

A cet effet, la présente invention a pour objet un dispositif selon la revendication 1.For this purpose, the subject of the present invention is a device according to claim 1.

Ainsi, grâce à ces dispositions, la face de contact de la butée conductrice est destinée à venir en appui avec le câble conducteur en plusieurs points, et non uniquement en un seul comme dans l'état de la technique.Thus, thanks to these arrangements, the contact face of the conductive abutment is intended to bear against the conductor cable several points, and not only in one as in the state of the art.

Ainsi, le dispositif permet également de serrer fermement des câbles de diamètre réduit.Thus, the device also makes it possible to firmly tighten cables of reduced diameter.

Avantageusement, la projection des ouvertures sur un plan perpendiculaire aux branches de l'étrier et selon une direction sensiblement parallèle aux branches est de forme sensiblement rectangulaire, dont la longueur est inférieure à la largeur de la bande de l'étrier.Advantageously, the projection of the openings on a plane perpendicular to the branches of the stirrup and in a direction substantially parallel to the branches is of substantially rectangular shape, whose length is less than the width of the band of the stirrup.

Encore de préférence, la butée électriquement conductrice est constituée par une barrette de liaison d'un bloc de jonction électrique.Still preferably, the electrically conductive stop is constituted by a connecting strip of an electrical junction block.

De manière préférée, le support extérieur est formé par un corps en matériau isolant constitutif du bloc de jonction électrique.Preferably, the outer support is formed by a body of insulating material constituting the electrical terminal block.

La présente invention a en outre pour objet un bloc de jonction électrique comprenant un corps en matériau isolant dans lequel sont ménagés des ouvertures de raccordement électrique, au moins un dispositif de serre-câble selon l'une quelconque des caractéristiques précitées étant implanté dans au moins l'une des ouvertures de raccordement électrique.The present invention further relates to an electrical terminal block comprising a body of insulating material in which are formed electrical connection openings, at least one cable clamp device according to any one of the aforementioned features being implanted in at least one of the electrical connection openings.

De toute façon, la présente invention sera bien comprise à l'aide de la description qui suit, faite en référence au dessin schématique annexé représentant, à titre d'exemples non limitatifs, deux formes d'exécution du dispositif de serre-câble selon la présente invention.

  • La figure 1 est une vue de face d'un dispositif de serre-câble selon un premier mode de réalisation de la présente invention, un câble de diamètre donné étant immobilisé.
  • La figure 2 est une vue analogue à la figure 1, d'un deuxième mode de réalisation du dispositif selon la présente invention, un câble de diamètre plus important étant immobilisé.
  • La figure 3 est une vue de dessus de l'étrier seul, les branches étant coupées.
  • La figure 4 est une vue analogue à la figure 2, un câble de diamètre réduit étant immobilisé dans le serre-câble.
In any case, the present invention will be better understood with the aid of the description which follows, made with reference to the appended diagrammatic drawing showing, by way of nonlimiting examples, two embodiments of the cable tie device according to FIG. present invention.
  • The figure 1 is a front view of a cable tie device according to a first embodiment of the present invention, a given diameter cable being immobilized.
  • The figure 2 is a view similar to the figure 1 of a second embodiment of the device according to the present invention, a larger diameter cable being immobilized.
  • The figure 3 is a top view of the stirrup alone, the branches being cut.
  • The figure 4 is a view similar to the figure 2 , a reduced diameter cable being immobilized in the cable clamp.

Le dispositif serre-câble 1 représenté, selon un premier mode de réalisation à la figure 1, est adapté pour bloquer en position un câble électrique afin d'établir une connexion électrique avec un autre élément conducteur. Ce dispositif est en particulier destiné à être implanté dans un bloc de jonction électrique dont le corps isolant loge des éléments de liaison électrique telle qu'une barrette de liaison. Cette barrette a par exemple pour fonction de mettre au même potentiel plusieurs éléments électriquement conducteurs. Un tel bloc de jonction est bien connu dans l'état de la technique et n'est pas ici décrit en détail, ni représenté.The cable clamp device 1 shown, according to a first embodiment of the invention, figure 1 , is adapted to lock in position an electrical cable to establish an electrical connection with another conductive element. This device is in particular intended to be implanted in an electrical terminal block whose insulating body houses electrical connection elements such as a link bar. This bar has for example function to put the same potential several electrically conductive elements. Such a terminal block is well known in the state of the art and is not here described in detail, nor represented.

Le dispositif serre-câble 1 comprend, de manière connue en soi, un étrier 2 dans lequel est logée une butée électriquement conductrice 10. Cette butée 10 prend par exemple la forme d'un tronçon de la barrette de liaison précitée.The cable clamping device 1 comprises, in a manner known per se, a stirrup 2 in which an electrically conducting abutment 10 is housed. This abutment 10 takes for example the shape of a section of the aforementioned connecting bar.

L'étrier 2 est formé de deux branches 3 et 4 qui s'étendent sensiblement parallèlement l'une à l'autre selon une direction X-X, ainsi que d'un fond courbe 5 qui relie les deux branches 3, 4. A l'opposé du fond 5, ces deux branches 3 et 4 possèdent respectivement des extrémités libres 5 et 6.The stirrup 2 is formed of two branches 3 and 4 which extend substantially parallel to each other in a direction XX, as well as a curved bottom 5 which connects the two branches 3, 4. opposite the bottom 5, these two branches 3 and 4 respectively have free ends 5 and 6.

On comprend ainsi que l'étrier 2 possède une forme générale de U. Il est conformé dans une bande de matériau plat dont la largeur est prédéterminée. Les branches 3 et 4 sont de longueur supérieure à la largeur de l'étrier 2.It is thus understood that the stirrup 2 has a general shape of U. It is shaped in a strip of flat material whose width is predetermined. The branches 3 and 4 are longer than the width of the stirrup 2.

La butée électriquement conductrice 10 est située entre les deux branches 3 et 4 de l'étrier. Cette butée 10 est de forme générale parallélépipédique et possède une première face 11 tournée vers les extrémités libres 5 et 6 des branches 3, 4, et une deuxième face 12 opposée tournée vers le fond courbe 5 de l'étrier 2. La deuxième face 12 est une face de contact électrique avec le câble conducteur 8 pour établir une liaison électrique avec ce câble lorsque la butée est serrée contre celui-ci, dans le fond 5 de l'étrier.The electrically conductive stop 10 is located between the two branches 3 and 4 of the yoke. This stop 10 is of generally parallelepipedal shape and has a first face 11 facing the free ends 5 and 6 of the branches 3, 4, and a second opposite face 12 facing the curved bottom 5 of the stirrup 2. The second face 12 is an electrical contact face with the conductive cable 8 to establish an electrical connection with this cable when the stop is pressed against it, in the bottom 5 of the caliper.

A cet effet, le dispositif de serre-câble 1 comprend de manière habituelle, des moyens d'entraînement (non représentés) qui permettent d'obtenir le mouvement relatif de l'étrier 2 par rapport à la butée 10 pour, soit rapprocher le fond 5 en direction de la butée, et ainsi serrer le câble dans le fond, soit au contraire écarter le fond 5 de la butée 10, c'est-à-dire provoquer le rapprochement des extrémités libres 5, 6 des branches 3, 4 vers la butée 10, et ainsi desserrer le câble 8.For this purpose, the cable tie device 1 comprises, in the usual manner, drive means (not shown) which make it possible to obtain the relative movement of the stirrup 2 with respect to the stop 10 for, or to bring the bottom 5 in the direction of the stop, and thus tighten the cable in the bottom, or on the contrary spread the bottom 5 of the abutment 10, that is to say cause the bringing the free ends 5, 6 of the branches 3, 4 closer to the stop 10, and thus loosening the cable 8.

Ces moyens d'entraînement sont par exemple des moyens à écrou qui, par vissage de l'écrou, provoquent le déplacement de l'étrier 2 dans le sens du serrage du câble. L'étrier possède un mouvement de va-et-vient en translation selon la direction parallèle à l'axe X-X, perpendiculaire au plan défini par la première face 11 de la butée 10.These drive means are, for example, nut means which, by screwing the nut, cause the stirrup 2 to move in the direction of tightening the cable. The caliper reciprocates in translation in the direction parallel to the X-X axis, perpendicular to the plane defined by the first face 11 of the abutment 10.

Selon une première caractéristique essentielle de l'invention, la face de contact 12 de la butée 10 est de forme concave dont la concavité est tournée vers le fond 5 de l'étrier 2. Ainsi, le câble 8 est amené à être en contact avec cette face 12 en plusieurs points, ce qui assure un meilleur maintien de ce câble.According to a first essential characteristic of the invention, the contact face 12 of the abutment 10 is of concave shape whose concavity is turned towards the bottom 5 of the stirrup 2. Thus, the cable 8 is brought into contact with this face 12 at several points, which ensures a better maintenance of this cable.

De préférence, la face de contact 12 prend la forme d'une goulotte possédant une âme centrale 15 qui est sensiblement plane et parallèle à la première face 11, ainsi que deux pans inclinés 17 et 18 qui s'étendent à partir de cette âme en divergeant en direction du fond 5 de l'étrier. Le câble 8 peut ainsi lors du serrage, venir en appui avec l'un ou les deux pans inclinés et/ou avec l'âme centrale selon le diamètre de ce câble.Preferably, the contact face 12 takes the form of a chute having a central core 15 which is substantially flat and parallel to the first face 11, as well as two inclined faces 17 and 18 which extend from this core. diverging towards the bottom 5 of the stirrup. The cable 8 can thus during clamping, come into abutment with one or both inclined faces and / or with the central core according to the diameter of this cable.

Les pans inclinés 17 et 18 sont de largeur inférieure à la largeur de l'étrier 2.The inclined faces 17 and 18 are of width less than the width of the stirrup 2.

Le câble 8 représenté à la figure 1 est le câble de plus gros diamètre que peut serrer le dispositif 1 puisque les extrémités des pans inclinés 17 et 18 sont en butée contre le fond 5 de l'étrier 2. Au contraire, le câble de plus gros diamètre qui peut être immobilisé dans l'étrier est celui qui possède un diamètre proche de la valeur de l'écartement mutuel des deux branches 3 et 4 de cet étrier (tel que le câble 24 représenté à la figure 2).The cable 8 represented at figure 1 is the cable of larger diameter that can clamp the device 1 since the ends of the inclined faces 17 and 18 are in abutment against the bottom 5 of the yoke 2. On the contrary, the larger diameter cable that can be immobilized in the caliper is one which has a diameter close to the value of the mutual spacing of the two branches 3 and 4 of this caliper (such as the cable 24 shown in FIG. figure 2 ).

A l'inverse, pour immobiliser un câble de diamètre réduit par rapport au câble 8, le dispositif de serre-câble 20 selon un deuxième mode de réalisation représenté aux figures 2 à 4 est utilisé.Conversely, to immobilize a cable of reduced diameter relative to the cable 8, the cable clamp device 20 according to a second embodiment shown in FIGS. Figures 2 to 4 is used.

Les parties constitutives similaires ou identiques au premier mode de réalisation de la figure 1 et au deuxième mode de réalisation portent les mêmes références numériques.The constituent parts that are similar or identical to the first embodiment of the figure 1 and in the second embodiment have the same reference numerals.

Le dispositif serre-câble 20 diffère du dispositif 1 par le fait que deux ouvertures 21 et 22 sont ménagées dans le fond 5 de l'étrier 2 en étant respectivement situées à l'aplomb des pans inclinés 17 et 18 de la face de contact 12 de la butée 10.The cable clamp device 20 differs from the device 1 in that two openings 21 and 22 are formed in the bottom 5 of the stirrup 2 being respectively located vertically above the inclined faces 17 and 18 of the contact face 12 the stop 10.

Les dimensions des ouvertures 21 et 22 sont adaptées pour que les pans inclinés 17 et 18 pénètrent au moins en partie dans ces ouvertures lorsque le fond 5 est rapproché de la butée 10 (figure 4).The dimensions of the openings 21 and 22 are adapted so that the inclined faces 17 and 18 penetrate at least partially into these openings when the bottom 5 is brought closer to the stop 10 (FIG. figure 4 ).

Ainsi, la projection des ouvertures 21 et 22 sur un plan perpendiculaire aux branches 3, 4 (ou parallèle à la première face 11 de la butée), et selon une direction sensiblement parallèle à l'axe X-X, est de forme sensiblement rectangulaire. La longueur de ce rectangle est inférieure à la largeur de l'étrier 2, comme cela est plus particulièrement visible à la figure 3.Thus, the projection of the openings 21 and 22 on a plane perpendicular to the branches 3, 4 (or parallel to the first face 11 of the abutment), and in a direction substantially parallel to the axis XX, is of substantially rectangular shape. The length of this rectangle is less than the width of the stirrup 2, as is more particularly visible in the figure 3 .

Un câble 26 de diamètre réduit est bloqué dans le fond 5 de l'étrier (figure 4) et les extrémités des pans inclinés 17 et 18 traversent les ouvertures 21 et 22 pour faire saillie à l'extérieur de l'étrier 2.A cable 26 of reduced diameter is blocked in the bottom 5 of the caliper ( figure 4 ) and the ends of the inclined faces 17 and 18 pass through the openings 21 and 22 to project outside the stirrup 2.

Dans un bloc de jonction équipé d'un tel dispositif serre-câble, on peut donc immobiliser des câbles non seulement fermement, mais également de diamètres compris dans une plage élargie, bien inférieurs aux dimensions de l'espace défini par la position de l'étrier (figure 1) dans laquelle les extrémités des pans inclinés sont adjacentes au fond de cet étrier.In a terminal block equipped with such a cable clamping device, it is therefore possible to immobilize cables not only firmly but also with diameters in a wider range, much smaller than the dimensions of the space defined by the position of the cable. stirrup ( figure 1 ) in which the ends of the inclined faces are adjacent to the bottom of this stirrup.

Comme il va se soi, l'invention ne se limite pas aux formes de réalisation préférentielles décrites ci-dessus, à titre d'exemple non limitatif ; elle en embrasse au contraire toutes les variantes de réalisation dans le cadre des revendications ci-après.As is self-evident, the invention is not limited to the preferred embodiments described above, by way of non-limiting example; on the contrary, it embraces all the variants within the scope of the following claims.

Claims (5)

  1. A cable clamp device for blocking an electric cable (8; 24, 26) with respect to a support outside the device, the device comprising:
    - a stirrup (2), which includes two substantially mutually parallel branches (3, 4), and a curved bottom (5) connecting said two branches (3, 4), the electric cable (8; 24, 26) being intended to be housed in the bottom (5) of the stirrup (2),
    - an electrically conducting abutment (10), which is mounted between both branches (3, 4) and which comprises a contact face (12) intended to be supported with the electric cable (8; 24, 26), and
    - driving means which give the possibility of causing displacement of the stirrup (2) with respect to the conducting abutment (10) in order to alternately move the bottom (5) and the abutment (10) closer together and move them away from each other, these driving means being intended to allow selective tightening of the electric cable (8; 24, 26) between the bottom (5) of the stirrup (2) and the contact face (12) of the conducting abutment (10),
    characterized in that:
    - the contact face (12) of the abutment (10) is of a concave shape, the concavity of which is turned towards the bottom (5) of the stirrup (2),
    - the contact face (12) comprises a central substantially planar core (15) and two tilted faces (17, 18), which extend from the central core (15) and which mutually diverge towards the bottom (5) of the stirrup (2),
    - the stirrup (2) is made in a flat material strip with a predetermined width,
    - the tilted faces (17, 18) have a smaller width than the width of the strip of the stirrup (2),
    - the bottom (5) of the stirrup (2) comprises two apertures (21, 22) respectively located at the base of the tilted faces (17, 18) and into which said tilted faces at least partly penetrate.
  2. The cable clamp device according to claim 1, characterized in that the projection of the apertures (21, 22) on a plane perpendicular to the branches (3, 4) of the stirrup (2) and along a direction substantially parallel to the branches (3, 4) is of a substantially rectangular shape, the length of which is less than the width of the strip of the stirrup (2).
  3. The cable clamp device according to one of claims 1 and 2, characterized in that the electrically conducting abutment (10) is formed by a connecting strip of an electric junction block.
  4. The cable clamp device according to claim 3, characterized in that the outer support is formed by a body in an insulating constitutive material of the electric junction block.
  5. An electric junction block comprising a body in an insulating material in which are made electric connecting apertures, characterized in that at least one cable clamp device according to any of the preceding claims, is implanted in at least one of the electric connection apertures.
EP04356170A 2003-11-17 2004-10-22 Cable clamp with enlarged clamping surface and terminal block comprising it Expired - Fee Related EP1531525B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313408A FR2862441B1 (en) 2003-11-17 2003-11-17 ENLARGED TIGHTENING ROPE CABLE CLAMP AND JUNCTION BLOCK PROVIDED WITH SUCH A CABLE CLAMP
FR0313408 2003-11-17

Publications (2)

Publication Number Publication Date
EP1531525A1 EP1531525A1 (en) 2005-05-18
EP1531525B1 true EP1531525B1 (en) 2012-12-19

Family

ID=34429998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04356170A Expired - Fee Related EP1531525B1 (en) 2003-11-17 2004-10-22 Cable clamp with enlarged clamping surface and terminal block comprising it

Country Status (3)

Country Link
US (1) US7041904B2 (en)
EP (1) EP1531525B1 (en)
FR (1) FR2862441B1 (en)

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US20090189026A1 (en) * 2008-01-25 2009-07-30 Tek-Works, Inc. Cable support mechanism and method of using same
US20120012715A1 (en) * 2010-07-13 2012-01-19 Alcan Products Corporation Systems, methods, and apparatus for providing a metal clad cable clamp
US8932087B2 (en) * 2012-05-08 2015-01-13 Thomas & Betts International, Inc. Hot line stirrup connector
DE102016108621B4 (en) * 2016-05-10 2018-01-25 Lisa Dräxlmaier GmbH Connector housing and connectors
CN110417277B (en) * 2018-04-27 2020-09-29 群光电能科技股份有限公司 Sliding buckle type casing device

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Also Published As

Publication number Publication date
US20050155783A1 (en) 2005-07-21
EP1531525A1 (en) 2005-05-18
FR2862441B1 (en) 2006-04-14
US7041904B2 (en) 2006-05-09
FR2862441A1 (en) 2005-05-20

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