EP0908972B1 - Cable clamp and an electrical apparatus fitted with such a cable clamp - Google Patents

Cable clamp and an electrical apparatus fitted with such a cable clamp Download PDF

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Publication number
EP0908972B1
EP0908972B1 EP98402441A EP98402441A EP0908972B1 EP 0908972 B1 EP0908972 B1 EP 0908972B1 EP 98402441 A EP98402441 A EP 98402441A EP 98402441 A EP98402441 A EP 98402441A EP 0908972 B1 EP0908972 B1 EP 0908972B1
Authority
EP
European Patent Office
Prior art keywords
cable clamp
clamping plate
cable
central
clamp 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
EP98402441A
Other languages
German (de)
French (fr)
Other versions
EP0908972A1 (en
Inventor
Franck Robinet
Dominique Deneu
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.)
Legrand France En Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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 Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0908972A1 publication Critical patent/EP0908972A1/en
Application granted granted Critical
Publication of EP0908972B1 publication Critical patent/EP0908972B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R13/595—Bolts operating in a direction transverse to the cable or wire
    • 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
    • H01R13/5837—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 specially adapted for accommodating various sized cables
    • 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
    • H01R13/5841—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 allowing different orientations of the cable with respect to the coupling direction

Definitions

  • the present invention generally relates to electrical devices that their users must equip themselves with an electric cable for their implementation.
  • mobile electrical devices such as, for example, multi-socket bases.
  • Such a cable clamp usually includes a simple bar clean to a tightening of the electric cable.
  • the cable clamp or at least one of its constituents, and it is most often a plate or a soleplate abutting the electrical cable when it is clamped by the bar, must be incorporated, or permanently attached to the one of the constituent parts of the electrical apparatus concerned, or, more precisely, to one of the constituent parts of the housing thereof;
  • the cable clamp must be adaptable to the different types of electrical cables that may be used and its effectiveness must not depend on the assembly of the constituent parts of the housing of the electrical appliance;
  • the cable clamp must be made of insulating material or have an insulating protection for those of its constituents which are made of metal; and these, including any clamping screws must be isolated from the corresponding earthing circuit.
  • the electrical device is delivered with the bar of its cable clamp mounted in a well determined of its positions, and if the user wishes that the exit of the electric cable is done in an orientation which does not correspond to this position, it is not necessarily obvious, for him, he must remove this bar and back in the position corresponding to the orientation he has chosen for the electric cable.
  • the present invention generally relates to an arrangement allowing on the contrary to have several possible orientations for the electric cable while respecting all the requirements to be met in terms of cable clamp.
  • a cable clamp which is intended to equip the housing with any electrical device, and which is of the kind comprising a bar adapted to a clamping of the electrical cable to be connected to this electrical device, this cable clamp being generally characterized in that, to impose, on demand, the electric cable concerned, one or the other of at least two different orientations, it comprises, d in one piece, at least two bars, the lengthwise directions of which are themselves different, namely, a strip called here by simple convenience central bar and at least one bar here called simply convenience bar side, with, for its fastening to the housing of the electrical apparatus, at least one chimney; it also relates to any electrical device whose housing is equipped with such a cable clamp for holding the electrical cable to be connected.
  • the cable clamp according to the invention comprising, by itself, but advantageously in the form of a single piece, a bar for each of the possible orientations for the electric cable, it is mandatory to deposit it for the setting in place of this electrical cable, and there is only one way to put it back in place, which, for the sake of safety, makes it possible to ensure with certainty that, regardless of the orientation chosen for the electric cable, it will be effectively implemented.
  • the number of these fixing points can advantageously be reduced to two, to the benefit of both the price of the set and the security.
  • the curvature to be imposed on it advantageously concerns only its conductors, and not its sheath.
  • the corresponding radius of curvature can thus advantageously be reduced, to the benefit of a reduction in overall size of the assembly.
  • the single piece forming the invention all the bars come in contact with the wall of the housing to which it is attached when the electric cable to be clamped is a minimum diameter electrical cable.
  • the cable clamp comprises a central bar and two side bars
  • the side bars diverge relative to each other from the central bar, so that in the event of the presence of a terminal block for the electric cable, this terminal block can more easily find its place between its side branches if desired.
  • the arrangement according to the invention advantageously allows the realization of a cable clamp particularly interesting from the economic point of view as well as from the point of view of safety, minimizing the size and simplicity of use.
  • This electrical apparatus 10 thus comprises, on the front of a housing 11, and, more precisely, on the upper face 12 of this housing 11, a plurality of wells 13 at the bottom of each of which a socket base 14 engages.
  • the housing 11 is generally parallelepipedal, and it is formed, on the one hand, of a base 15, which forms by itself its bottom wall 16, and which carries the essential mechanisms necessary, and on the other hand, a cover 18, which forms its upper face 12, with the wells 13, and which is duly attached, removably, to the base 15.
  • the cover 18 extends over the entire height of the housing 11, and, as a corollary, the base 15 is substantially reduced to the bottom wall 16.
  • the cover 18 thus comprises, besides the upper face 12, two longitudinal faces 19, and alternating therewith, two transverse faces 20.
  • the cover 18 fits on the base 15, and to do this, it has, at its periphery, a flange 22.
  • Securing, disengageable, the cover 18 on the base 15 may for example be by snapping and / or screwing.
  • the electrical apparatus 10 thus concerned is mobile, but it can equally well be used in a fixed position.
  • an electric cable 23 is provided and, in the embodiment shown, it is a flexible electric cable comprising, within a sheath of insulating material 24, the various electrical conductors 25 required.
  • Its housing 11 is therefore equipped with a cable clamp 26 suitable for holding the electric cable 23.
  • this clamp 26 intervenes within the housing 11 itself.
  • the cable clamp 26 comprises at least one strip 28A, 28B suitable for clamping the electric cable 23, this clamping being done in practice in cooperation with the bottom wall 16 on which it is attached.
  • the cable clamp 26 comprises, in one piece, according to the invention, at least two bars 28A , 28B whose elongation directions are themselves different, namely, a bar 28A here called simply convenience bar central and at least one strip 28B here called convenience simple side bar, with, for its attachment to the housing 11 of the electrical apparatus 10, at least one chimney 30.
  • direction of elongation for a bar 28A, 28B is meant here the general direction in which such a bar 28A, 28B extends.
  • the cable clamp 26 comprises, in a generally U-shaped configuration, three bars 28A, 28B, namely, the central bar 28A and two lateral bars 28B, and taken individually, these various bars 28A, 28B are all substantially rectilinear.
  • the elongation directions of these bars 28A, 28B are generally orthogonal to the orientations chosen as possible for the electric cable 23.
  • each of the side bars 28B makes with the central bar 28A an angle A slightly greater than 90 °, moving outwardly as it moves away from it. central bar 28A.
  • the two side bars 28B therefore diverge relative to each other from the central bar 28A.
  • the angle A is the same for both of the two side bars 28B.
  • the two side bars 28B are, in practice, substantially coplanar.
  • the cable clamp 26 thus has, in the embodiment shown, a plane of symmetry M, which, perpendicular to its central bar 28A, passes through the central zone thereof.
  • This plane of symmetry M is schematized in broken lines by its trace in FIG.
  • the lower face 31 B of the side bars 28B is substantially level with the lower face 31 A of the central bar 28A.
  • the central bar 28A has a substantially constant height along its length, it is not the same side bars 288, whose height, on the contrary, decreases gradually at from the central bar 28A.
  • the upper face 32A is therefore substantially parallel to the lower face 31 A.
  • the upper face 32B progressively approaches the lower face 31B as it moves away from the central bar 28A.
  • the bars 28A, 28B have, respectively, side faces 33A, 33B, which, in the embodiment, are substantially parallel to each other, apart from a possible molding clearance.
  • the cable clamp 26 according to the invention comprises two chimneys 30.
  • One of these chimneys 30 intervenes substantially at the junction of the central bar 28A with one of the side bars 28B, mid-width for these bars 28A, 28B, that is to say halfway from their lateral faces 33A, 33B, and likewise the other of these chimneys 30 intervenes substantially at the junction of the central bar 28A with the other of the side bars 28B, at mid-width for these bars 28A, 28B, c ' that is, midway between their side faces 33A, 33B.
  • the chimneys 30 extend substantially perpendicular to the plane of the bars 28A, 28B.
  • the chimneys 30 are slightly recessed with respect to this inlet outlet 35, a neck 36 of cross section. passage lower than the passage section that they have in their current part, for the support of the head 37 of a screw 38.
  • each of these bars 28A, 28B of the cable clamp 26 has at least one recess 40A, 40B hollow on its underside 31 A, 31 B.
  • the indentations 40B are substantially aligned with each other.
  • the notches 40A, 40B have a profile arcuate.
  • each of these bars 28A, 28B of the cable clamp 26 has recessed on its underside 31A, 31B, especially for molding reasons, a recess 42A, 42B, which results that it forms, substantially parallel to its direction of elongation, and substantially parallel to each other, two walls 43A , 43B.
  • the notch 40A, 40B of course affects either of these walls 43A, 43B, and the outer surface thereof forms the corresponding lateral faces 33A, 33B.
  • each of these bars 28A, 28B of the cable clamp 26 has, recessed on its lower face 31A, 31B, a groove 44A, 44B, which, substantially parallel to its direction of elongation, extends over at least part of its length, substantially halfway from its walls 43A, 43B.
  • the groove 44A extends only over a part of the length, and for the side bars 28B, it extends on the contrary on all of it.
  • the groove 44A extends closer to the innermost wall 43A.
  • the groove 44B extends substantially halfway between the walls 43B.
  • the cable clamp 26 is attached to the bottom wall 16 of the housing 11.
  • the plane of symmetry M of the cable clamp 26 then extends parallel to the elongation direction of the housing 11.
  • the central strip 28A of the cable clamp 26 is then substantially parallel to one of the transverse faces 20 of the cover 18 of this housing 11, close to the latter, and therefore corresponds to an axial output for the cable electric 23.
  • the lateral bars 28B then extend slightly at an angle to the longitudinal faces 19 of the cover 18 of the housing 11, in the vicinity of the latter, and they each correspond respectively to a lateral outlet for the electric cable 23.
  • Lids 47A, 47B are provided in correspondence on the relevant transverse face 20 of the cover 18 and on its longitudinal faces 19.
  • knockouts or knockouts are, for example, knockouts or knockouts.
  • the housing 11 For each of the chimneys 30 of the cable clamp 26, the housing 11 has, moreover, protruding on its bottom wall 16, that is to say projecting on the base 15 forming this bottom wall 16, a pin 48, on which the cable clamp 26 is engaged by such a chimney 30.
  • This pin which is hollow, serves as a housing for a threaded insert 49 with which the barrel 50 of the corresponding screw 38 is screwed in.
  • the housing 11 For each of the bars 28A, 28B of the cable clamp 26, the housing 11 has, in addition, projecting on its bottom wall 16, a rib 51A, 51B, which extends parallel to the walls 43A, 43B of such a bar 28A, 28B between these walls 43A, 43B.
  • this rib 51 A, 51 B has a notch 52A, 52B, which, in the manner of the notch 40A, 40B of the bars 28A, 28B of the cable clamp 26, has an arcuate contour of circle, but according to a concavity which is turned in the opposite direction to that of the latter.
  • the rib 51A corresponding to the central bar 28A of the cable clamp 26 extends from one to the other of two flanges 53, which, parallel to each other and perpendicular to this rib 51A, are respectively arranged to distance of the two pins 48, between them.
  • the two ribs 51B corresponding to the two lateral bars 28B respectively extend respectively from the two pins 48.
  • tilting means 54 between the cable clamp 26 and the bottom wall 16 of the housing 11 are involved tilting means 54.
  • these tilting means 54 comprise, on the lower face 31A of the central bar 28A of the cable clamp 26, a tilting protrusion 55, in the form of a dihedron, whose edge extends in parallel. to the direction of elongation of this central bar 28A, on either side of each of the chimneys 30, and by which the cable clamp 26 is able to bear on the bottom wall 16 of the casing 11, and together there is a clearance J between each of these chimneys 30 of the cable tie 26 and the corresponding pin 48 of the casing 11, at least transversely relative to the corresponding tilting axis, that is to say at least in a direction perpendicular to the central bar 28A, as shown in Figure 11 for one of these chimneys 30 and for the one of these pawns 48.
  • the housing 11 has, projecting from its bottom wall 16, and thus projecting from the base 15 forming this bottom wall 16, a connection terminal block 56 to which each of them is respectively connected. the electrical conductors 25 of the electric cable 23.
  • this connection terminal block 56 extends away from the cable clamp 26.
  • the orientation imposed on the electric cable 23 then corresponds to an axial output for it.
  • the orientation thus imposed on the electric cable 23 then corresponds to a lateral outlet for it.
  • the tightening of the screws 38 is continued until the cable clamp 26 bears on the bottom wall 16 of the housing 11 by its tilting projection 55.
  • this tilting projection 55 is located away from the axis of the pins 48, and therefore away from the plane along which the screws 38 exert their effect.
  • the cable clamp 26 tilts more or less towards the notch 52B of the ribs 51 B, if, as shown in Figure 14, the electric cable 23 has a diameter sufficiently small to make contact with the bottom wall 16 of the housing 11 before making contact with it.
  • the tilting of the cable clamp 26 can be done in the opposite direction of the preceding one, if, on the contrary, and as shown in FIG. 11, the electric cable 23 has a diameter large enough to make contact with before contacting the bottom wall 16 of the housing 11.
  • the cable clamp 26 advantageously makes it possible to clamp simultaneously, in at least two different directions, at least two separate electrical cables, namely an electric supply cable. and at least one electrical cable for transplanting.
  • the bottom wall 16 of the housing 11 has, projecting from the base of the pins 48, a rib 58 which extends on either side of its pegs 48, going, in particular, to the flanges 53 flanking the rib 51A at its ends.
  • This rib 58 is intended to serve as a support for the tilting protrusion 55 of the cable clamp 26, whose tilting plane is thus slightly raised, without the embodiment of this cable clamp 26 is found modified.
  • bottom wall 16 especially when it is indicated that the tilt projection 55 of the cable clamp 26 bears on this bottom wall 16, the latter in front of then be understood as possibly including for this purpose the rib 58.
  • the tilting means intervening between this cable and the housing could equally well include a tilting projection on this housing.

Landscapes

  • Installation Of Indoor Wiring (AREA)
  • Insulated Conductors (AREA)
  • Processing Of Terminals (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Clamps And Clips (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Cable Accessories (AREA)

Abstract

When grip is mounted in socket unit, the entering cable (23) can be clamped in one of three positions as desired. At least two clamping plates (28A,28B) stretching in different directions, comprising central clamping plate and clamping shoulder plate, having at least one fixing clamp screw (30).

Description

La présente invention concerne d'une manière générale les appareils électriques que leurs utilisateurs doivent équiper eux-mêmes d'un câble électrique pour leur mise en oeuvre.The present invention generally relates to electrical devices that their users must equip themselves with an electric cable for their implementation.

Même s'ils peuvent également être utilisés à poste fixe, il s'agit, le plus souvent, en pratique, d'appareils électriques mobiles, tels que, par exemple, des socles multiprises.Although they can also be used in fixed positions, it is, in most cases, in practice, mobile electrical devices, such as, for example, multi-socket bases.

Les normes en vigueur en la matière imposent que le boîtier de ces appareils électriques soit équipé d'un dispositif d'arrêt, communément appelé serre-câble, qui, pour des raisons évidentes de sécurité, doit être à même d'assurer une retenue énergique du câble électrique, si, de manière fortuite ou involontaire, celui-ci vient à être l'objet d'une traction et/ou d'une torsion susceptibles d'en provoquer autrement l'arrachement.The standards in force require that the housing of these electrical appliances be equipped with a stop device, commonly called cable clamp, which, for obvious safety reasons, must be able to ensure a strong restraint of the electric cable, if, accidentally or involuntarily, it is subject to traction and / or torsion may otherwise cause tearing.

Un tel serre-câble comporte le plus souvent une simple barrette propre à un serrage du câble électrique.Such a cable clamp usually includes a simple bar clean to a tightening of the electric cable.

Les normes imposent que ce serrage intéresse la gaine en matière isolante que comporte usuellement le câble électrique, comme cela est le cas des câbles électriques souples.The standards require that this clamping is of interest to the insulating sheath that the electrical cable usually comprises, as is the case with flexible electrical cables.

Elles imposent corollairement que soient satisfaites un certain nombre d'autres exigences, dont les suivantes : la façon de réaliser la protection du câble électrique à l'égard de la traction et de la torsion doit être facile à reconnaître, le serre-câble, ou au moins l'un de ses constituants, et il s'agit le plus souvent d'une platine ou d'une semelle contrebutant le câble électrique lorsqu'il est serré par la barrette, doit être incorporé, ou fixé en permanence, à l'une des parties constitutives de l'appareil électrique concerné, ou, plus précisément, à l'une des parties constitutives du boîtier de celui-ci ; le serre-câble doit être adaptable aux différents types de câbles électriques susceptibles d'être mis en oeuvre et son efficacité ne doit pas dépendre de l'assemblage des parties constitutives du boîtier de l'appareil électrique ; le serre-câble doit être en matière isolante ou comporter une protection isolante pour ceux de ses constituants qui sont en métal ; et ces derniers, y compris d'éventuelles vis de serrage, doivent être isolés du circuit de terre correspondant.They require that a number of other requirements be met, including the following: how to achieve protection of the electrical cable with respect to traction and torsion must be easy to recognize, the cable clamp, or at least one of its constituents, and it is most often a plate or a soleplate abutting the electrical cable when it is clamped by the bar, must be incorporated, or permanently attached to the one of the constituent parts of the electrical apparatus concerned, or, more precisely, to one of the constituent parts of the housing thereof; the cable clamp must be adaptable to the different types of electrical cables that may be used and its effectiveness must not depend on the assembly of the constituent parts of the housing of the electrical appliance; the cable clamp must be made of insulating material or have an insulating protection for those of its constituents which are made of metal; and these, including any clamping screws must be isolated from the corresponding earthing circuit.

Il se trouve, par ailleurs, que, pour faciliter l'utilisation de l'appareil électrique concerné, il est souhaitable que la sortie de son câble électrique puisse, au choix, se faire suivant l'une ou l'autre de plusieurs orientations différentes.It is furthermore that, in order to facilitate the use of the electrical apparatus concerned, it is desirable for the output of its electrical cable to be able to be chosen according to one or the other of several different orientations. .

C'est ainsi, par exemple, que, dans la demande de brevet européen No 0 681 348, qui concerne un connecteur, il est prévu que cette sortie se fasse axialement ou latéralement.Thus, for example, in European Patent Application No. 0 681 348, which relates to a connector, it is provided that this output is made axially or laterally.

Il est mis en oeuvre, pour ce faire, une pièce unique, qui comporte latéralement des opercules défonçables dont un est à éliminer pour une sortie latérale du câble électrique, et qui, de ce fait, ne constitue pas un serre-câble dans la mesure, d'une part, où elle ne satisfait pas à certaines au moins des exigences rappelées ci-dessus, et où, d'autre part, elle participe au contraire à la constitution du boîtier du connecteur concerné.It is implemented, for this purpose, a single piece, which laterally comprises knockouts, one of which is to be eliminated for a lateral output of the electric cable, and which, therefore, does not constitute a cable clamp in the measure on the one hand, where it does not meet at least some of the requirements mentioned above, and where, on the other hand, it participates on the contrary to the constitution of the housing of the connector concerned.

Lorsque, s'agissant d'un réel serre-câble, il est envisagé de pouvoir disposer de plusieurs orientations possibles pour le câble électrique, on peut penser, pour n'avoir également à mettre en oeuvre qu'une seule pièce, à reprendre la barrette usuelle en la matière, et à prévoir pour elle plusieurs implantations possibles dans le boîtier de l'appareil électrique, suivant les orientations à satisfaire pour le câble électrique.When, in the case of a real cable tie, it is envisaged to have several possible orientations for the electric cable, it may be thought, in order to also have to implement only one piece, to take over the conventional bar in the field, and to provide for it several possible implementations in the housing of the electrical device, according to the orientations to be satisfied for the electric cable.

Cette disposition conduit à multiplier de manière dispendieuse les points de fixation à prévoir pour la barrette.This arrangement leads to an expensive expansion of the fixing points to be provided for the bar.

En outre, elle ne permet pas de satisfaire en toute certitude à l'une des exigences rappelées ci-dessus.Moreover, it does not make it possible to satisfy with any certainty one of the requirements mentioned above.

En effet, si l'appareil électrique est livré avec la barrette de son serre-câble montée dans une bien déterminée de ses positions, et si l'utilisateur souhaite que la sortie du câble électrique se fasse suivant une orientation qui ne correspond pas à cette position, il n'est pas forcément évident, pour lui, qu'il doit déposer cette barrette et la remonter dans la position correspondant à l'orientation qu'il a choisie pour le câble électrique.Indeed, if the electrical device is delivered with the bar of its cable clamp mounted in a well determined of its positions, and if the user wishes that the exit of the electric cable is done in an orientation which does not correspond to this position, it is not necessarily obvious, for him, he must remove this bar and back in the position corresponding to the orientation he has chosen for the electric cable.

Il y a donc le risque, dans ce cas, que le serre-câble ne soit pas effectivement mis en oeuvre, au détriment de la sécurité.There is therefore the risk, in this case, that the cable clamp is not actually implemented, to the detriment of safety.

La présente invention a d'une manière générale pour objet une disposition permettant au contraire de disposer de plusieurs orientations possibles pour le câble électrique tout en respectant toutes les exigences à satisfaire en matière de serre-câble.The present invention generally relates to an arrangement allowing on the contrary to have several possible orientations for the electric cable while respecting all the requirements to be met in terms of cable clamp.

De manière plus précise, elle a tout d'abord pour objet un serre-câble, qui est destiné à équiper le boîtier d'un quelconque appareil électrique, et qui est du genre comportant une barrette propre à un serrage du câble électrique à raccorder à cet appareil électrique, ce serre-câble étant d'une manière générale caractérisé en ce que, pour imposer, à la demande, au câble électrique concerné, l'une ou l'autre d'au moins deux orientations différentes, il comporte, d'un seul tenant, au moins deux barrettes dont les directions d'allongement sont elles-mêmes différentes, à savoir, une barrette dite ici par simple commodité barrette centrale et au moins une barrette dite ici par simple commodité barrette latérale, avec, pour sa fixation au boîtier de l'appareil électrique, au moins une cheminée ; elle a encore pour objet tout appareil électrique dont le boîtier est équipé d'un tel serre-câble pour le maintien du câble électrique qui est à lui raccorder.More specifically, it firstly relates to a cable clamp, which is intended to equip the housing with any electrical device, and which is of the kind comprising a bar adapted to a clamping of the electrical cable to be connected to this electrical device, this cable clamp being generally characterized in that, to impose, on demand, the electric cable concerned, one or the other of at least two different orientations, it comprises, d in one piece, at least two bars, the lengthwise directions of which are themselves different, namely, a strip called here by simple convenience central bar and at least one bar here called simply convenience bar side, with, for its fastening to the housing of the electrical apparatus, at least one chimney; it also relates to any electrical device whose housing is equipped with such a cable clamp for holding the electrical cable to be connected.

En bref, le serre-câble suivant l'invention comportant, par lui-même, mais avantageusement sous la forme d'une pièce unique, une barrette pour chacune des orientations possibles pour le câble électrique, il est obligatoire de le déposer pour la mise en place de ce câble électrique, et il y a une seule façon de le remettre ensuite lui-même en place, ce qui, au bénéfice de la sécurité, permet d'assurer en toute certitude que, quelle que soit l'orientation retenue pour le câble électrique, il sera bien effectivement mis en oeuvre.In short, the cable clamp according to the invention comprising, by itself, but advantageously in the form of a single piece, a bar for each of the possible orientations for the electric cable, it is mandatory to deposit it for the setting in place of this electrical cable, and there is only one way to put it back in place, which, for the sake of safety, makes it possible to ensure with certainty that, regardless of the orientation chosen for the electric cable, it will be effectively implemented.

En outre, du fait même que les barrettes ainsi présentes participent à la constitution d'une pièce unique, le nombre de points de fixation à prévoir pour l'ensemble se trouve avantageusement minimisé.In addition, the fact that the bars thus present participate in the constitution of a single piece, the number of fixing points to provide for all is advantageously minimized.

En pratique, le nombre de ces points de fixation peut avantageusement être réduit à deux, au bénéfice tant du prix de l'ensemble que de la sécurité.In practice, the number of these fixing points can advantageously be reduced to two, to the benefit of both the price of the set and the security.

Enfin, quelle que soit l'orientation retenue pour le câble électrique, la courbure à imposer à celui-ci ne concerne avantageusement que ses seuls conducteurs, et non pas sa gaine.Finally, irrespective of the orientation adopted for the electric cable, the curvature to be imposed on it advantageously concerns only its conductors, and not its sheath.

Le rayon de courbure correspondant peut ainsi avantageusement être réduit, au bénéfice d'une réduction de l'encombrement en plan de l'ensemble.The corresponding radius of curvature can thus advantageously be reduced, to the benefit of a reduction in overall size of the assembly.

Préférentiellement, pour réduire, corollairement, l'encombrement en hauteur de l'ensemble, il est prévu, suivant l'invention, que, tout en assurant le serrage à satisfaire, la pièce unique formant suivant l'invention l'ensemble des barrettes vienne en contact avec la paroi du boîtier sur laquelle elle est rapportée lorsque le câble électrique à enserrer est un câble électrique de diamètre minimal.Preferably, to reduce, as a corollary, the overall height of the assembly, it is provided according to the invention, while ensuring the tightening to be satisfied, the single piece forming the invention all the bars come in contact with the wall of the housing to which it is attached when the electric cable to be clamped is a minimum diameter electrical cable.

Préférentiellement, enfin, pour minimiser également l'encombrement dû au serre-câble au sein du boîtier de l'appareil électrique, il est prévu, suivant un développement de l'invention, que, lorsque le serre-câble comporte une barrette centrale et deux barrettes latérales, les barrettes latérales divergent l'une par rapport à l'autre à compter de la barrette centrale, pour que, dans l'éventualité de la présence d'un bornier de raccordement pour le câble électrique, ce bornier de raccordement puisse plus facilement trouver sa place entre ses branches latérales si désiré.Preferably, finally, to minimize also the space requirement due to the cable clamp within the housing of the electrical apparatus, it is provided, according to a development of the invention, that when the cable clamp comprises a central bar and two side bars, the side bars diverge relative to each other from the central bar, so that in the event of the presence of a terminal block for the electric cable, this terminal block can more easily find its place between its side branches if desired.

En bref, la disposition suivant l'invention permet avantageusement la réalisation d'un serre-câble particulièrement intéressant du point de vue économique aussi bien que du point de vue de la sécurité, de la minimisation de l'encombrement et de la simplicité d'utilisation.In short, the arrangement according to the invention advantageously allows the realization of a cable clamp particularly interesting from the economic point of view as well as from the point of view of safety, minimizing the size and simplicity of use.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple, en référence aux dessins schématiques annexés sur lesquels :

  • la figure 1 est une vue en perspective d'un appareil électrique équipé d'un serre-câble suivant l'invention ;
  • la figure 2 est, à échelle supérieure, une vue partielle en perspective éclatée de cet appareil électrique, avec le serre-câble qu'il comporte serré sur le câble électrique qui lui est raccordé ;
  • la figure 3 est, à la même échelle que celle de la figure 2, une vue en perspective de ce serre-câble et de la partie du boîtier de l'appareil électrique sur laquelle il est rapporté ;
  • la figure 4 est, à échelle différente, une vue en perspective de ce serre-câble, représenté isolément, et vu de dessus ;
  • la figure 5 en est une autre vue en perspective, vu de dessous ;
  • les figures 6 et 7 en sont des vues en coupe transversale, suivant, chacune respectivement, les lignes VI-VI et VII-VII de la figure 4 ;
  • la figure 8 est, suivant la flèche VIII de la figure 2, une vue en plan de ce serre-câble, en place dans le boîtier de l'appareil électrique concerné, pour une première orientation du câble électrique qu'il enserre ;
  • la figure 9 est, à échelle différente, une vue en coupe transversale de l'ensemble, suivant la ligne IX-IX de la figure 8 ;
  • la figure 10 est une vue en plan analogue à celle de la figure 8, pour une autre orientation du câble électrique ;
  • la figure 11 est, à l'échelle de la figure 9, et suivant la ligne XI-XI de la figure 10, une vue en coupe transversale de l'ensemble, pour cette autre orientation du câble électrique ;
  • les figures 12 et 13 sont des vues partielles en coupe de l'ensemble, suivant, chacune respectivement, les lignes XII-XII et XIII-XIII de la figure 11 ;
  • la figure 14 est une vue en coupe transversale analogue à celle de la figure 11, pour un autre câble électrique ;
  • la figure 15 est une vue partielle en perspective d'une variante de réalisation du boîtier de l'appareil électrique suivant l'invention.
The characteristics and advantages of the invention will emerge from the following description, by way of example, with reference to the appended diagrammatic drawings in which:
  • Figure 1 is a perspective view of an electrical apparatus equipped with a cable clamp according to the invention;
  • Figure 2 is a larger scale, a partial exploded perspective view of the electrical apparatus, with the cable clamp that includes tight on the electrical cable connected thereto;
  • Figure 3 is, on the same scale as that of Figure 2, a perspective view of the cable clamp and the housing portion of the electrical apparatus on which it is reported;
  • Figure 4 is a different scale, a perspective view of the cable clamp, shown in isolation, and seen from above;
  • Figure 5 is another perspective view, seen from below;
  • Figures 6 and 7 are cross-sectional views, respectively, respectively, lines VI-VI and VII-VII of Figure 4;
  • Figure 8 is, along the arrow VIII of Figure 2, a plan view of the cable clamp, in place in the housing of the electrical apparatus concerned, for a first orientation of the electrical cable that it encloses;
  • Figure 9 is a different scale, a cross-sectional view of the assembly, along the line IX-IX of Figure 8;
  • Figure 10 is a plan view similar to that of Figure 8, for another orientation of the electric cable;
  • Figure 11 is, on the scale of Figure 9, and along the line XI-XI of Figure 10, a cross-sectional view of the assembly for this other orientation of the electric cable;
  • Figures 12 and 13 are partial sectional views of the assembly, respectively, respectively, the lines XII-XII and XIII-XIII of Figure 11;
  • Figure 14 is a cross sectional view similar to that of Figure 11, for another electric cable;
  • Figure 15 is a partial perspective view of an alternative embodiment of the housing of the electrical apparatus according to the invention.

Ces figures illustrent, à titre d'exemple, l'application de l'invention au cas où l'appareil électrique 10 concerné est un socle multiprise.These figures illustrate, by way of example, the application of the invention in the case where the electrical apparatus 10 concerned is a socket base.

Cet appareil électrique 10 comporte donc, en façade d'un boîtier 11, et, plus précisément, sur la face supérieure 12 de ce boîtier 11, une pluralité de puits 13 au fond de chacun desquels intervient un socle de prise de courant 14.This electrical apparatus 10 thus comprises, on the front of a housing 11, and, more precisely, on the upper face 12 of this housing 11, a plurality of wells 13 at the bottom of each of which a socket base 14 engages.

Dans la forme de réalisation représentée, le boîtier 11 est globalement parallélépipédique, et il est formé, d'une part, d'un socle 15, qui forme par lui-même sa paroi de fond 16, et qui porte l'essentiel des mécanismes nécessaires, et, d'autre part, d'un capot 18, qui forme sa face supérieure 12, avec les puits 13, et qui est dûment rapporté, de manière amovible, sur le socle 15.In the embodiment shown, the housing 11 is generally parallelepipedal, and it is formed, on the one hand, of a base 15, which forms by itself its bottom wall 16, and which carries the essential mechanisms necessary, and on the other hand, a cover 18, which forms its upper face 12, with the wells 13, and which is duly attached, removably, to the base 15.

Dans la forme de réalisation représentée, le capot 18 s'étend sur toute la hauteur du boîtier 11, et, corollairement, le socle 15 se réduit pour l'essentiel à la paroi de fond 16.In the embodiment shown, the cover 18 extends over the entire height of the housing 11, and, as a corollary, the base 15 is substantially reduced to the bottom wall 16.

Le capot 18 comporte donc, outre la face supérieure 12, deux faces longitudinales 19, et, en alternance avec celles-ci, deux faces transversales 20.The cover 18 thus comprises, besides the upper face 12, two longitudinal faces 19, and alternating therewith, two transverse faces 20.

Dans la forme de réalisation représentée, le capot 18 s'emboîte sur le socle 15, et, pour ce faire, celui-ci présente, à sa périphérie, un rebord 22.In the embodiment shown, the cover 18 fits on the base 15, and to do this, it has, at its periphery, a flange 22.

La solidarisation, débrayable, du capot 18 sur le socle 15 peut par exemple se faire par encliquetage et/ou par vissage.Securing, disengageable, the cover 18 on the base 15 may for example be by snapping and / or screwing.

Les dispositions correspondantes ne relevant pas de la présente invention, elles ne seront pas décrites ici.The corresponding arrangements not falling within the scope of the present invention will not be described here.

En pratique, l'appareil électrique 10 ainsi concerné est mobile, mais il peut tout aussi bien être utilisé à poste fixe.In practice, the electrical apparatus 10 thus concerned is mobile, but it can equally well be used in a fixed position.

Pour la desserte des divers socles de prise de courant 14 qu'il comporte, il est prévu un câble électrique 23, et, dans la forme de réalisation représentée, il s'agit d'un câble électrique souple comportant, au sein d'une gaine en matière isolante 24, les divers conducteurs électriques 25 nécessaires.For the service of the various socket-outlets 14 that it comprises, an electric cable 23 is provided and, in the embodiment shown, it is a flexible electric cable comprising, within a sheath of insulating material 24, the various electrical conductors 25 required.

Son boîtier 11 est donc équipé d'un serre-câble 26 propre au maintien de ce câble électrique 23.Its housing 11 is therefore equipped with a cable clamp 26 suitable for holding the electric cable 23.

Dans la forme de réalisation représentée, ce serre-câble 26 intervient au sein même du boîtier 11.In the embodiment shown, this clamp 26 intervenes within the housing 11 itself.

Par exemple, et tel que représenté, il est rapporté sur la paroi de fond 16 de celui-ci.For example, and as shown, it is attached to the bottom wall 16 thereof.

Mais, bien entendu, d'autres dispositions sont envisageables.But, of course, other arrangements are possible.

De manière connue en soi, le serre-câble 26 comporte au moins une barrette 28A, 28B propre à un serrage du câble électrique 23, ce serrage se faisant en pratique en coopération avec la paroi de fond 16 sur laquelle il est rapporté.In a manner known per se, the cable clamp 26 comprises at least one strip 28A, 28B suitable for clamping the electric cable 23, this clamping being done in practice in cooperation with the bottom wall 16 on which it is attached.

Pour imposer, à la demande, au câble électrique 23, l'une ou l'autre d'au moins deux orientations différentes, le serre-câble 26 comporte, d'un seul tenant, suivant l'invention, au moins deux barrettes 28A, 28B dont les directions d'allongement sont elles-mêmes différentes, à savoir, une barrette 28A dite ici par simple commodité barrette centrale et au moins une barrette 28B dite ici par simple commodité barrette latérale, avec, pour sa fixation au boîtier 11 de l'appareil électrique 10, au moins une cheminée 30.To impose, on demand, the electric cable 23, one or the other of at least two different orientations, the cable clamp 26 comprises, in one piece, according to the invention, at least two bars 28A , 28B whose elongation directions are themselves different, namely, a bar 28A here called simply convenience bar central and at least one strip 28B here called convenience simple side bar, with, for its attachment to the housing 11 of the electrical apparatus 10, at least one chimney 30.

Par direction d'allongement pour une barrette 28A, 28B, on entend, ici, la direction générale suivant laquelle une telle barrette 28A, 28B s'étend.By direction of elongation for a bar 28A, 28B is meant here the general direction in which such a bar 28A, 28B extends.

Dans la forme de réalisation représentée, le serre-câble 26 comporte, suivant une configuration générale en U, trois barrettes 28A, 28B, à savoir, la barrette centrale 28A et deux barrettes latérales 28B, et, prises individuellement, ces diverses barrettes 28A, 28B sont toutes sensiblement rectilignes.In the embodiment shown, the cable clamp 26 comprises, in a generally U-shaped configuration, three bars 28A, 28B, namely, the central bar 28A and two lateral bars 28B, and taken individually, these various bars 28A, 28B are all substantially rectilinear.

En pratique, les directions d'allongement de ces barrettes 28A, 28B sont globalement orthogonales aux orientations choisies comme possibles pour le câble électrique 23.In practice, the elongation directions of these bars 28A, 28B are generally orthogonal to the orientations chosen as possible for the electric cable 23.

Cependant, dans la forme de réalisation représentée, chacune des barrettes latérales 28B fait avec la barrette centrale 28A un angle A légèrement supérieur à 90°, en s'écartant vers l'extérieur au fur et à mesure qu'elle s'éloigne de cette barrette centrale 28A.However, in the embodiment shown, each of the side bars 28B makes with the central bar 28A an angle A slightly greater than 90 °, moving outwardly as it moves away from it. central bar 28A.

Les deux barrettes latérales 28B divergent donc l'une par rapport à l'autre à compter de la barrette centrale 28A.The two side bars 28B therefore diverge relative to each other from the central bar 28A.

Dans la forme de réalisation représentée, l'angle A est le même pour l'une et l'autre des deux barrettes latérales 28B.In the embodiment shown, the angle A is the same for both of the two side bars 28B.

Quoi qu'il en soit, les deux barrettes latérales 28B sont, en pratique, sensiblement coplanaires.In any event, the two side bars 28B are, in practice, substantially coplanar.

Le serre-câble 26 suivant l'invention présente donc, dans la forme de réalisation représentée, un plan de symétrie M, qui, perpendiculaire à sa barrette centrale 28A, passe par la zone médiane de celle-ci.The cable clamp 26 according to the invention thus has, in the embodiment shown, a plane of symmetry M, which, perpendicular to its central bar 28A, passes through the central zone thereof.

Ce plan de symétrie M est schématisé en traits interrompus par sa trace sur la figure 8.This plane of symmetry M is schematized in broken lines by its trace in FIG.

Abstraction faite de moyens de basculement explicités ultérieurement, la face inférieure 31 B des barrettes latérales 28B est sensiblement à niveau avec la face inférieure 31 A de la barrette centrale 28A.Apart from tilting means explained later, the lower face 31 B of the side bars 28B is substantially level with the lower face 31 A of the central bar 28A.

Mais, si, dans la forme de réalisation représentée, la barrette centrale 28A a sensiblement une hauteur constante tout au long de sa longueur, il n'en est pas de même des barrettes latérales 288, dont la hauteur, au contraire, décroît progressivement à compter de la barrette centrale 28A.But, if, in the embodiment shown, the central bar 28A has a substantially constant height along its length, it is not the same side bars 288, whose height, on the contrary, decreases gradually at from the central bar 28A.

Pour la barrette centrale 28A, la face supérieure 32A est donc sensiblement parallèle à la face inférieure 31 A.For the central bar 28A, the upper face 32A is therefore substantially parallel to the lower face 31 A.

Par contre, pour les barrettes latérales 28B, la face supérieure 32B se rapproche progressivement de la face inférieure 31 B au fur et à mesure qu'elle s'éloigne de la barrette centrale 28A.On the other hand, for the lateral bars 28B, the upper face 32B progressively approaches the lower face 31B as it moves away from the central bar 28A.

Outre leurs faces inférieure 31 A, 31 B et supérieure 32A, 32B, les barrettes 28A, 28B comportent, respectivement, des faces latérales 33A, 33B, qui, dans la forme de réalisation, sont sensiblement parallèles entre elles abstraction faite d'une éventuelle dépouille de moulage.In addition to their lower faces 31A, 31B and upper 32A, 32B, the bars 28A, 28B have, respectively, side faces 33A, 33B, which, in the embodiment, are substantially parallel to each other, apart from a possible molding clearance.

Dans la forme de réalisation représentée, le serre-câble 26 suivant l'invention comporte deux cheminées 30.In the embodiment shown, the cable clamp 26 according to the invention comprises two chimneys 30.

L'une de ces cheminées 30 intervient sensiblement à la jonction de la barrette centrale 28A avec l'une des barrettes latérales 28B, à mi-largeur pour ces barrettes 28A, 28B, c'est-à-dire à mi-distance de leurs faces latérales 33A, 33B, et, de même, l'autre de ces cheminées 30 intervient sensiblement à la jonction de la barrette centrale 28A avec l'autre des barrettes latérales 28B, à mi-largeur pour ces barrettes 28A, 28B, c'est-à-dire à mi-distance de leurs faces latérales 33A, 33B.One of these chimneys 30 intervenes substantially at the junction of the central bar 28A with one of the side bars 28B, mid-width for these bars 28A, 28B, that is to say halfway from their lateral faces 33A, 33B, and likewise the other of these chimneys 30 intervenes substantially at the junction of the central bar 28A with the other of the side bars 28B, at mid-width for these bars 28A, 28B, c ' that is, midway between their side faces 33A, 33B.

En pratique, les cheminées 30 s'étendent sensiblement perpendiculairement au plan des barrettes 28A, 28B.In practice, the chimneys 30 extend substantially perpendicular to the plane of the bars 28A, 28B.

A leur débouché d'entrée 35, qui se situe du côté de la face supérieure 32A, 32B des barrettes 28A, 28B, les cheminées 30 présentent, légèrement en retrait par rapport à ce débouché d'entrée 35, un col 36 de section de passage inférieure à la section de passage qu'elles présentent dans leur partie courante, pour l'appui de la tête 37 d'une vis 38.At their inlet outlet 35, which is situated on the side of the upper face 32A, 32B of the bars 28A, 28B, the chimneys 30 are slightly recessed with respect to this inlet outlet 35, a neck 36 of cross section. passage lower than the passage section that they have in their current part, for the support of the head 37 of a screw 38.

L'une au moins des barrettes 28A, 28B du serre-câble 26 suivant l'invention, et, préférentiellement, tel que représenté, chacune de ces barrettes 28A, 28B présente au moins une échancrure 40A, 40B en creux sur sa face inférieure 31 A, 31 B.At least one of the bars 28A, 28B of the cable clamp 26 according to the invention, and, preferably, as shown, each of these bars 28A, 28B has at least one recess 40A, 40B hollow on its underside 31 A, 31 B.

En pratique, dans la forme de réalisation représentée, seule une échancrure 40A, 40B est ainsi prévue sur les barrettes 28A, 28B.In practice, in the embodiment shown, only a notch 40A, 40B is thus provided on the bars 28A, 28B.

De l'une à l'autre des barrettes latérales 28B, les échancrures 40B sont sensiblement alignées l'une avec l'autre.From one to the other of the side bars 28B, the indentations 40B are substantially aligned with each other.

Par exemple, et tel que représenté, les échancrures 40A, 40B ont un profil en arc de cercle.For example, and as shown, the notches 40A, 40B have a profile arcuate.

Elles s'étendent sensiblement dans la zone médiane des barrettes 28A, 28B, à mi-distance des extrémités de celles-ci.They extend substantially in the middle zone of the bars 28A, 28B, halfway from the ends thereof.

Dans la forme de réalisation représentée, l'une au moins des barrettes 28A, 28B du serre-câble 26 suivant l'invention, et, préférentiellement, tel que représenté, chacune de ces barrettes 28A, 28B comporte, en creux sur sa face inférieure 31 A, 31 B, notamment pour des raisons de moulage, un évidement 42A, 42B, dont il résulte qu'elle forme, sensiblement parallèlement à sa direction d'allongement, et sensiblement parallèlement l'une à l'autre, deux parois 43A, 43B.In the embodiment shown, at least one of the bars 28A, 28B of the cable clamp 26 according to the invention, and, preferably, as shown, each of these bars 28A, 28B has recessed on its underside 31A, 31B, especially for molding reasons, a recess 42A, 42B, which results that it forms, substantially parallel to its direction of elongation, and substantially parallel to each other, two walls 43A , 43B.

L'échancrure 40A, 40B affecte bien entendu indifféremment l'une et l'autre de ces parois 43A, 43B, et la surface extérieure de celles-ci forme les faces latérales 33A, 33B correspondantes.The notch 40A, 40B of course affects either of these walls 43A, 43B, and the outer surface thereof forms the corresponding lateral faces 33A, 33B.

Dans la forme de réalisation représentée, l'une au moins des barrettes 28A, 28B du serre-câble 26 suivant l'invention, et, préférentiellement, tel que représenté, chacune de ces barrettes 28A, 28B comporte, en creux sur sa face inférieure 31 A, 31 B, une saignée 44A, 44B, qui, sensiblement parallèlement à sa direction d'allongement, s'étend sur une partie au moins de sa longueur, sensiblement à mi-distance de ses parois 43A, 43B.In the embodiment shown, at least one of the bars 28A, 28B of the cable clamp 26 according to the invention, and preferably, as shown, each of these bars 28A, 28B has, recessed on its lower face 31A, 31B, a groove 44A, 44B, which, substantially parallel to its direction of elongation, extends over at least part of its length, substantially halfway from its walls 43A, 43B.

Pour la barrette centrale 28A, la saignée 44A ne s'étend que sur une partie de la longueur, et, pour les barrettes latérales 28B, elle s'étend au contraire sur la totalité de celle-ci.For the central bar 28A, the groove 44A extends only over a part of the length, and for the side bars 28B, it extends on the contrary on all of it.

Plus précisément, la saignée 44A que présente la barrette centrale 28A ne s'étend que sur la partie médiane de sa longueur, entre les deux cheminées 30, à distance de celles-ci, et, au contraire, la saignée 44B que présentent les barrettes latérales 28B s'étend sur la totalité de leur longueur, en traversant de part en part la cheminée 30 correspondante.More specifically, the groove 44A that the central bar 28A has extends only on the middle part of its length, between the two chimneys 30, at a distance from them, and, on the contrary, the groove 44B that the bars present. 28B side extends over their entire length, crossing right through the corresponding chimney 30.

Pour la barrette centrale 28A, la saignée 44A s'étend au plus près de la paroi 43A la plus interne.For the central bar 28A, the groove 44A extends closer to the innermost wall 43A.

Pour les barrettes latérales 28B, la saignée 44B s'étend sensiblement à mi-distance entre les parois 43B.For the side bars 28B, the groove 44B extends substantially halfway between the walls 43B.

Comme déjà précédemment indiqué, le serre-câble 26 suivant l'invention est rapporté sur la paroi de fond 16 du boîtier 11.As already indicated, the cable clamp 26 according to the invention is attached to the bottom wall 16 of the housing 11.

Il y est assujetti à l'aide de deux vis 38, à raison d'une par cheminée 30.It is secured with two screws 38, one per chimney 30.

En pratique, et tel que représenté, le plan de symétrie M du serre-câble 26 s'étend alors parallèlement à la direction d'allongement du boîtier 11.In practice, and as shown, the plane of symmetry M of the cable clamp 26 then extends parallel to the elongation direction of the housing 11.

Plus précisément, la barrette centrale 28A du serre-câble 26 est alors sensiblement parallèle à l'une des faces transversales 20 du capot 18 de ce boîtier 11, à proximité de celle-ci, et elle correspond donc à une sortie axiale pour le câble électrique 23.More specifically, the central strip 28A of the cable clamp 26 is then substantially parallel to one of the transverse faces 20 of the cover 18 of this housing 11, close to the latter, and therefore corresponds to an axial output for the cable electric 23.

Corollairement, les barrettes latérales 28B s'étendent alors légèrement en biais par rapport aux faces longitudinales 19 du capot 18 du boîtier 11, au voisinage de celles-ci, et elles correspondent chacune respectivement à une sortie latérale pour le câble électrique 23.As a corollary, the lateral bars 28B then extend slightly at an angle to the longitudinal faces 19 of the cover 18 of the housing 11, in the vicinity of the latter, and they each correspond respectively to a lateral outlet for the electric cable 23.

Des opercules 47A, 47B sont prévus en correspondance sur la face transversale 20 concernée du capot 18 et sur ses faces longitudinales 19.Lids 47A, 47B are provided in correspondence on the relevant transverse face 20 of the cover 18 and on its longitudinal faces 19.

Il s'agit par exemple d'opercules défonçables ou à découper.These are, for example, knockouts or knockouts.

Sur les figures 1 et 2, l'opercule 47A de la face transversale 20 a été supposé éliminé.In FIGS. 1 and 2, the seal 47A of the transverse face 20 has been assumed to be eliminated.

Pour chacune des cheminées 30 du serre-câble 26, le boîtier 11 présente, par ailleurs, en saillie sur sa paroi de fond 16, c'est-à-dire en saillie sur le socle 15 formant cette paroi de fond 16, un pion 48, sur lequel le serre-câble 26 est engagé par une telle cheminée 30.For each of the chimneys 30 of the cable clamp 26, the housing 11 has, moreover, protruding on its bottom wall 16, that is to say projecting on the base 15 forming this bottom wall 16, a pin 48, on which the cable clamp 26 is engaged by such a chimney 30.

Ce pion 48, qui est creux, sert de logement à un insert taraudé 49 avec lequel le fût 50 de la vis 38 correspondante est en prise à vissage.This pin, which is hollow, serves as a housing for a threaded insert 49 with which the barrel 50 of the corresponding screw 38 is screwed in.

Pour chacune des barrettes 28A, 28B du serre-câble 26, le boîtier 11 présente, en outre, en saillie sur sa paroi de fond 16, une nervure 51 A, 51 B, qui s'étend parallèlement aux parois 43A, 43B d'une telle barrette 28A, 28B, entre ces parois 43A, 43B.For each of the bars 28A, 28B of the cable clamp 26, the housing 11 has, in addition, projecting on its bottom wall 16, a rib 51A, 51B, which extends parallel to the walls 43A, 43B of such a bar 28A, 28B between these walls 43A, 43B.

Le long de son bord libre, cette nervure 51 A, 51 B présente une échancrure 52A, 52B, qui, à la manière de l'échancrure 40A, 40B des barrettes 28A, 28B du serre-câble 26, a un contour en arc de cercle, mais suivant une concavité qui est tournée en sens opposé à celle de cette dernière.Along its free edge, this rib 51 A, 51 B has a notch 52A, 52B, which, in the manner of the notch 40A, 40B of the bars 28A, 28B of the cable clamp 26, has an arcuate contour of circle, but according to a concavity which is turned in the opposite direction to that of the latter.

La nervure 51 A correspondant à la barrette centrale 28A du serre-câble 26 s'étend de l'un à l'autre de deux flasques 53, qui, parallèles entre eux, et perpendiculaires à cette nervure 51 A, sont chacun respectivement disposés à distance des deux pions 48, entre ceux-ci.The rib 51A corresponding to the central bar 28A of the cable clamp 26 extends from one to the other of two flanges 53, which, parallel to each other and perpendicular to this rib 51A, are respectively arranged to distance of the two pins 48, between them.

Les deux nervures 51B correspondant aux deux barrettes latérales 28B s'étendent au contraire chacune respectivement à compter des deux pions 48.The two ribs 51B corresponding to the two lateral bars 28B respectively extend respectively from the two pins 48.

Préférentiellement, et cela est le cas dans la forme de réalisation représentée, entre le serre-câble 26 et la paroi de fond 16 du boîtier 11 interviennent des moyens de basculement 54.Preferably, and this is the case in the embodiment shown, between the cable clamp 26 and the bottom wall 16 of the housing 11 are involved tilting means 54.

Dans la forme de réalisation représentée, ces moyens de basculement 54 comportent, sur la face inférieure 31 A de la barrette centrale 28A du serre-câble 26, une saillie de basculement 55, en forme de dièdre, dont l'arête s'étend parallèlement à la direction d'allongement de cette barrette centrale 28A, de part et d'autre de chacune des cheminées 30, et par laquelle le serre-câble 26 est apte à porter sur la paroi de fond 16 du boîtier 11, et, conjointement, il existe un jeu J entre chacune de ces cheminées 30 du serre-câble 26 et le pion 48 correspondant du boîtier 11, au moins transversalement par rapport à l'axe de basculement correspondant, c'est-à-dire au moins suivant une direction perpendiculaire à la barrette centrale 28A, ainsi qu'il apparaît sur la figure 11 pour l'une de ces cheminées 30 et pour l'un de ces pions 48.In the embodiment shown, these tilting means 54 comprise, on the lower face 31A of the central bar 28A of the cable clamp 26, a tilting protrusion 55, in the form of a dihedron, whose edge extends in parallel. to the direction of elongation of this central bar 28A, on either side of each of the chimneys 30, and by which the cable clamp 26 is able to bear on the bottom wall 16 of the casing 11, and together there is a clearance J between each of these chimneys 30 of the cable tie 26 and the corresponding pin 48 of the casing 11, at least transversely relative to the corresponding tilting axis, that is to say at least in a direction perpendicular to the central bar 28A, as shown in Figure 11 for one of these chimneys 30 and for the one of these pawns 48.

Enfin, dans la forme de réalisation représentée, le boîtier 11 présente, en saillie sur sa paroi de fond 16, et, donc, en saillie sur le socle 15 formant cette paroi de fond 16, un bornier de raccordement 56 auquel sont chacun respectivement raccordés les conducteurs électriques 25 du câble électrique 23.Finally, in the embodiment shown, the housing 11 has, projecting from its bottom wall 16, and thus projecting from the base 15 forming this bottom wall 16, a connection terminal block 56 to which each of them is respectively connected. the electrical conductors 25 of the electric cable 23.

Dans la forme de réalisation représentée, ce bornier de raccordement 56 s'étend à distance du serre-câble 26.In the embodiment shown, this connection terminal block 56 extends away from the cable clamp 26.

Mais, du fait de la divergence entre les barrettes latérales 28B, il peut si désiré être plus ou moins engagé entre ces dernières.But, because of the divergence between the side bars 28B, it can if desired be more or less engaged between them.

Pour le raccordement du câble électrique 23, il est nécessaire de procéder à la dépose du serre-câble 26.For the connection of the electric cable 23, it is necessary to remove the cable clamp 26.

Il est nécessaire, en effet, que le câble électrique 23 soit engagé sous l'une ou l'autre des barrettes 28A, 28B de ce serre-câble 26.It is necessary, in fact, that the electric cable 23 is engaged under one or other of the bars 28A, 28B of this cable clamp 26.

Après le raccordement du câble électrique 23, le serre-câble 26 est remis en place.After connecting the electric cable 23, the cable clamp 26 is replaced.

Sur les figures 1 à 9, il a été supposé que le câble électrique 23 était engagé sous la barrette centrale 28A du serre-câble 26.In FIGS. 1 to 9, it has been assumed that the electric cable 23 was engaged under the central bar 28A of the cable clamp 26.

L'orientation imposée au câble électrique 23 correspond alors à une sortie axiale pour celui-ci.The orientation imposed on the electric cable 23 then corresponds to an axial output for it.

Ainsi qu'on le notera, les parois 43A de la barrette centrale 28A du serre-câble 26, d'une part, et la nervure 51 A correspondante du boîtier 11, d'autre part, imposent alors au câble électrique 23 un trajet en zigzag, au bénéfice de sa retenue.As will be noted, the walls 43A of the central bar 28A of the cable clamp 26, on the one hand, and the corresponding rib 51A of the housing 11, on the other hand, then impose on the electric cable 23 a path in zigzag, for the benefit of his restraint.

Sur les figures 10 à 14, il a été supposé, en variante, que le câble électrique 23 était engagé sous l'une ou l'autre des barrettes latérales 28B du serre-câble 26.In FIGS. 10 to 14, it has been assumed, as a variant, that the electric cable 23 was engaged under one or the other of the lateral bars 28B of the cable clamp 26.

L'orientation imposée ainsi au câble électrique 23 correspond alors à une sortie latérale pour celui-ci.The orientation thus imposed on the electric cable 23 then corresponds to a lateral outlet for it.

Comme précédemment, et ainsi qu'il est visible sur la figure 13, les parois 43B de la barrette latérale 28B concernée, d'une part, et la nervure 51B correspondante du boîtier 11, d'autre part, imposent au câble électrique 23 un trajet en zigzag.As previously, and as can be seen in FIG. 13, the walls 43B of the lateral strip 28B concerned, on the one hand, and the corresponding rib 51B of the case 11, on the other hand, impose on the electric cable 23 a zigzag path.

Préférentiellement, pour une telle sortie latérale du câble électrique 23, le serrage des vis 38 est poursuivi jusqu'à ce que le serre-câble 26 porte sur la paroi de fond 16 du boîtier 11 par sa saillie de basculement 55.Preferably, for such a lateral exit of the electric cable 23, the tightening of the screws 38 is continued until the cable clamp 26 bears on the bottom wall 16 of the housing 11 by its tilting projection 55.

Or, par construction, cette saillie de basculement 55 se situe à l'écart de l'axe des pions 48, et, donc, à l'écart du plan suivant lequel les vis 38 exercent leur effet.However, by construction, this tilting projection 55 is located away from the axis of the pins 48, and therefore away from the plane along which the screws 38 exert their effect.

Par suite, le serre-câble 26 bascule plus ou moins en direction de l'échancrure 52B des nervures 51 B, si, tel que représenté sur la figure 14, le câble électrique 23 présente un diamètre suffisamment réduit pour qu'il prenne contact avec la paroi de fond 16 du boîtier 11 avant de prendre contact avec lui.As a result, the cable clamp 26 tilts more or less towards the notch 52B of the ribs 51 B, if, as shown in Figure 14, the electric cable 23 has a diameter sufficiently small to make contact with the bottom wall 16 of the housing 11 before making contact with it.

Bien entendu, le basculement du serre-câble 26 peut se faire dans le sens inverse du précédent, si, au contraire, et tel que représenté sur la figure 11, le câble électrique 23 présente un diamètre suffisamment important pour qu'il prenne contact avec lui avant de prendre contact avec la paroi de fond 16 du boîtier 11.Of course, the tilting of the cable clamp 26 can be done in the opposite direction of the preceding one, if, on the contrary, and as shown in FIG. 11, the electric cable 23 has a diameter large enough to make contact with before contacting the bottom wall 16 of the housing 11.

Mais, dans tous les cas, le câble électrique 26 se trouve énergiquement serré.But in any case, the electric cable 26 is tightly energetic.

Dans l'un et l'autre cas, également, le basculement du serre-câble 26 se trouve autorisé par la saignée 44B des barrettes latérales 28B, celles-ci s'engageant par cette saignée 44B sur les nervures 51B du boîtier 11.In either case, also, the tilting of the cable clamp 26 is authorized by the groove 44B of the side bars 28B, the latter engaging by this groove 44B on the ribs 51B of the housing 11.

Il est à souligner, par ailleurs, que, si désiré, le serre-câble 26 suivant l'invention permet avantageusement de serrer simultanément, dans au moins deux directions différentes, au moins deux câbles électriques distincts, à savoir un câble électrique d'alimentation et au moins un câble électrique de repiquage.It should be noted, moreover, that, if desired, the cable clamp 26 according to the invention advantageously makes it possible to clamp simultaneously, in at least two different directions, at least two separate electrical cables, namely an electric supply cable. and at least one electrical cable for transplanting.

Dans la variante de réalisation représentée sur la figure 15, la paroi de fond 16 du boîtier 11 présente, en saillie, à la base des pions 48, une nervure 58 qui s'étend de part et d'autre de ses pions 48, en allant, notamment, jusqu'aux flasques 53 flanquant la nervure 51 A à ses extrémités.In the variant embodiment shown in FIG. 15, the bottom wall 16 of the housing 11 has, projecting from the base of the pins 48, a rib 58 which extends on either side of its pegs 48, going, in particular, to the flanges 53 flanking the rib 51A at its ends.

Cette nervure 58 est destinée à servir d'appui à la saillie de basculement 55 du serre-câble 26, dont le plan de basculement se trouve ainsi légèrement rehaussé, sans que le mode de mise en oeuvre de ce serre-câble 26 s'en trouve modifié.This rib 58 is intended to serve as a support for the tilting protrusion 55 of the cable clamp 26, whose tilting plane is thus slightly raised, without the embodiment of this cable clamp 26 is found modified.

C'est donc dans un sens plus large qu'il faut entendre "paroi de fond 16", notamment lorsqu'il est indiqué que la saillie de basculement 55 du serre-câble 26 porte sur cette paroi de fond 16, celle-ci devant alors être entendue comme comportant éventuellement à cet effet la nervure 58.It is therefore in a wider sense that is meant "bottom wall 16", especially when it is indicated that the tilt projection 55 of the cable clamp 26 bears on this bottom wall 16, the latter in front of then be understood as possibly including for this purpose the rib 58.

En outre, dans cette variante de réalisation, d'autres nervures ont été prévues en saillie sur la paroi de fond 16 du boîtier 11, pour la rigidification de cette paroi de fond 16.In addition, in this alternative embodiment, other ribs have been provided projecting on the bottom wall 16 of the housing 11, for the stiffening of this bottom wall 16.

Bien entendu, la présente invention ne se limite pas aux formes de réalisation décrites et représentées, mais englobe toute variante d'exécution.Of course, the present invention is not limited to the embodiments described and shown, but encompasses any variant embodiment.

En particulier, au lieu de comporter une saillie de basculement sur le serre-câble, les moyens de basculement intervenant entre ce câble et le boîtier pourraient tout aussi bien comporter une saillie de basculement sur ce boîtier.In particular, instead of having a tilting projection on the cable clamp, the tilting means intervening between this cable and the housing could equally well include a tilting projection on this housing.

Claims (25)

  1. Cable clamp, intended to be fitted in the case of any electrical appliance and which is of the type comprising a clamping plate suitable for clamping an electric cable to be connected to the electrical appliance, characterised in that, in order to position the electric cable (23) concerned in one or other of at least two different orientations as required, the cable clamp comprises as a single piece, at least two clamping plates (28A, 28B) which extend in different directions to one another, the at least two clamping plates (28A, 28B) comprising a central clamping plate (28A), and at least one lateral clamping plate (28B) with at least one bore (30) for fixing it to the case (11) of the electrical appliance (10).
  2. Cable clamp according to claim 1, characterised in that the bore (30) extends approximately perpendicular to the plane of the clamping plates (28A, 28B).
  3. Cable clamp according to any one of claims 1, 2, characterised in that at its opening (35), the bore (30) has a collar (36), of a smaller section than the section which it has in its regular part.
  4. Cable clamp according to any one of claims 1 to 3, characterised in that the bore (30) is positioned approximately at the junction of the central clamping plate (28A) with the lateral clamping plate (28B).
  5. Cable clamp according to any one of claims 1 to 4, characterised in that the lateral clamping plate (28B) forms an angle (A) with the central clamping plate (28A).
  6. Cable clamp according to claim 5, characterised in that the lateral clamping plate (28B) forms an angle (A) of slightly over 90° with the central clamping plate (28A).
  7. Cable clamp according to any one of claims 1 to 6, characterised in that at least one of the clamping plates (28A, 28B) has at least one indentation (40A, 40B) on its lower face (31A, 31B).
  8. Cable clamp according to claim 7, characterised in that each of the clamping pates (28A, 28B), has at least one indentation (40A, 40B) on its lower face (31A, 31B).
  9. Cable clamp according to any one of claims 1 to 8, characterised in that at least one of the clamping plates (28A, 28B) comprises a cavity (42A, 42B) recessed on its lower surface (31A, 31B), forming as a result two walls (43A, 43B), approximately parallel to the direction in which it extends, and approximately parallel to each other.
  10. Cable clamp according to claim 9, characterised in that each of the clamping plates (28A, 28B), comprises a cavity (42A, 42B) recessed on its lower surface (3 1 A, 31 B).
  11. Cable clamp according to any one of claims 1 to 10, characterised in that at least one of the clamping plates (28A, 28B) comprises, recessed in its lower surface (31A, 31B), a groove (44A, 44B), which runs approximately parallel to the longitudinal direction of the at least one clamping plate and extends over at least one part of its length.
  12. Cable clamp according to claim 11, characterised in that each of the clamping plates (28A, 28B) comprises a groove (44A, 44B) recessed on its lower surface (31A, 31B),
  13. Cable clamp according to claim 12, characterised in that, for the central clamping plate (28A), the groove (44A) extends over only a part of its length, and for the lateral clamping plate (28B), it extends over the whole of its length.
  14. Cable clamp according to any one of claims 1 to 13, characterised in that, in a general U-shaped configuration, it comprises three clamping plates (28A, 28B), a central clamping plate (28A) and two lateral clamping plates (28B).
  15. Cable clamp according to claims 6 and 14, characterised in that the lateral clamping plates (28B) diverge from each other, starting from the central clamping plate (28A).
  16. Cable clamp according to claims 4 and 14, characterised in that it comprises two bores (30), one at the junction of the central clamping plate (28A) with one of the lateral clamping plates (28B), the other at the junction of this central clamping plate (28A) with the other lateral clamping plate (28B).
  17. Cable clamp according to claims 13, 14 and 16, characterised in that the groove (44A) on the central clamping plate (28A), extends only over a central part of its length, between the two bores (30) and at a distance from them; and the groove (44B) on the lateral clamping plates (28B) extends over their whole length, passing through the corresponding bore (30).
  18. Cable clamp according to any one of claims 14 to 17, characterised in that it has a plane of symmetry (M) which, perpendicular to its central clamping plate (28A), passes through the central area of the latter.
  19. Electrical appliance of the type to which an electric cable is connected, with a cable clamp provided in its case to hold the electric cable, characterised in that this cable clamp (26) is in accordance with any one of claims 1 to 18.
  20. Electrical appliance according to claim 19, characterised in that the case (11) has a base surface (16), and the cable clamp (26) is mounted on this base surface (16).
  21. Electrical appliance according to claim 20, characterised in that, for each of the bores (30) of the cable clamp (26), the case (11) has, projecting from its base surface (16), a pin (48) onto which the cable clamp (26) is engaged by means of the bore (30).
  22. Electrical appliance according to any one of claims 19 to 21, characterised in that, for each of the clamping plates (28A, 28B) of the cable clamp (26), the case (11) has a rib (51A, 51B), projecting from its base surface (16) and extending parallel to and between the walls (43A, 43B) of the clamping plate (28A, 28B).
  23. Electrical appliance according to claim 22, characterised in that each rib (51A, 51B) which the case (11) comprises, has an indentation (52A, 52B) along its free edge.
  24. Electrical appliance according to any one of claims 20 to 23, characterised in that, between the cable clamp (26) and the base surface (16) of the case (11), tilting means (54) are provided.
  25. Electrical appliance according to claim 24, characterised in that the tilting means (54) comprise, on the lower surface (31A) of the central clamping plate (28A) of the cable clamp (26), a tilting projection (55) by which the cable clamp (26) is able to bear against the base surface (16) of the case (11), and together, there is a clearance (J) between each of the bores (30) of the cable clamp (26), and the corresponding pin (48) of the case (11), at least transversally in relation to the corresponding tilting axis.
EP98402441A 1997-10-07 1998-10-05 Cable clamp and an electrical apparatus fitted with such a cable clamp Expired - Lifetime EP0908972B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9712492A FR2769418B1 (en) 1997-10-07 1997-10-07 CABLE CLAMP AND ELECTRIC APPARATUS EQUIPPED WITH SUCH A CABLE CLAMP
FR9712492 1997-10-07

Publications (2)

Publication Number Publication Date
EP0908972A1 EP0908972A1 (en) 1999-04-14
EP0908972B1 true EP0908972B1 (en) 2006-03-22

Family

ID=9511920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98402441A Expired - Lifetime EP0908972B1 (en) 1997-10-07 1998-10-05 Cable clamp and an electrical apparatus fitted with such a cable clamp

Country Status (7)

Country Link
EP (1) EP0908972B1 (en)
AT (1) ATE321366T1 (en)
DE (1) DE69833927T2 (en)
ES (1) ES2260822T3 (en)
FR (1) FR2769418B1 (en)
HU (1) HU222172B1 (en)
MX (1) MXPA98008258A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6368149B1 (en) * 2000-03-06 2002-04-09 Philips Electronics North America Corporation Insulating cover for dual connector
GB2485610B (en) * 2010-11-22 2015-01-21 Cp Electronics Ltd Power connector
DK201400096Y3 (en) 2013-06-13 2014-11-14 Schneider Electric Danmark As Electrical outlet with strain relief
DE102015112045B4 (en) * 2015-07-23 2019-01-31 Siteco Beleuchtungstechnik Gmbh Strain relief for electrical cables
DE202018101572U1 (en) * 2018-03-21 2019-06-24 Kuka Deutschland Gmbh Cable holding assembly and robot
DE102021125801A1 (en) * 2021-10-05 2023-04-06 Metz Connect Tech Gmbh Connection socket for a data or communication network

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549780A (en) * 1984-07-27 1985-10-29 Amp Incorporated Electrical connector with alternative cable exits
GB8612588D0 (en) * 1986-05-23 1986-07-02 Kinloch Electronics Ltd Cable clamp
US5383796A (en) * 1993-11-24 1995-01-24 Molex Incorporated Electrical connector with improved strain relief means
US5514007A (en) * 1994-05-04 1996-05-07 Thomas & Betts Corporation Data connector strain relief assembly
DE29701117U1 (en) * 1997-01-23 1997-03-20 Wilhelm Rutenbeck GmbH & Co., 58579 Schalksmühle Electrical installation equipment

Also Published As

Publication number Publication date
HU222172B1 (en) 2003-04-28
EP0908972A1 (en) 1999-04-14
ES2260822T3 (en) 2006-11-01
HU9802247D0 (en) 1998-12-28
ATE321366T1 (en) 2006-04-15
DE69833927T2 (en) 2006-12-14
HUP9802247A2 (en) 1999-04-28
MXPA98008258A (en) 2005-07-15
HUP9802247A3 (en) 2001-11-28
FR2769418B1 (en) 2000-01-28
DE69833927D1 (en) 2006-05-11
FR2769418A1 (en) 1999-04-09

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