EP0175827A1 - Device for clamping an electrical cable on a plug grip - Google Patents

Device for clamping an electrical cable on a plug grip Download PDF

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Publication number
EP0175827A1
EP0175827A1 EP84401902A EP84401902A EP0175827A1 EP 0175827 A1 EP0175827 A1 EP 0175827A1 EP 84401902 A EP84401902 A EP 84401902A EP 84401902 A EP84401902 A EP 84401902A EP 0175827 A1 EP0175827 A1 EP 0175827A1
Authority
EP
European Patent Office
Prior art keywords
handle
base
jaws
seal
cable
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.)
Withdrawn
Application number
EP84401902A
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German (de)
French (fr)
Inventor
Yves Le Magourou
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.)
Societe dExploitation des Procedes Marechal SEPM SA
Original Assignee
Societe dExploitation des Procedes Marechal SEPM SA
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 Societe dExploitation des Procedes Marechal SEPM SA filed Critical Societe dExploitation des Procedes Marechal SEPM SA
Priority to EP84401902A priority Critical patent/EP0175827A1/en
Priority to US06/689,791 priority patent/US4640568A/en
Priority to AU46214/85A priority patent/AU580084B2/en
Publication of EP0175827A1 publication Critical patent/EP0175827A1/en
Withdrawn legal-status Critical Current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
    • H01R13/59—Threaded ferrule or bolt operating in a direction parallel 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases

Definitions

  • the invention relates to a device for securing an electric cable to a plug handle.
  • the base rests, with generally the interposition of a seal, on a span of the handle and the jaws are erected above the base while a frustoconical bearing is arranged in a cap. so as to ensure when fixing said cap on the handle, a clamping of the jaws on the cable.
  • the seal provides a seal between the base and the handle, while being applied, thanks to a special shape, to the cable, but the jaws remain vulnerable to bad weather and in particular to frost since they are placed at the above said seal and turned towards the cap.
  • the invention provides a device comprising in known manner a clamping part which is formed of an annular base provided with a plurality of jaws which project from said base and which are arranged so as to cooperate by elastic deformation with at least one frustoconical bearing, the device according to the invention being remarkable in that the clamping piece is arranged in the handle so that the bits, of which at least the outer parts of the ends converge opposite the base, are arranged relative to the latter on the side opposite to the arrival of the cable in the handle, while the frustoconical bearing is arranged in the handle and converges towards the longitudinal axis of the latter on the side opposite to said arrival of the cable, means being provided for exerting pressure on the base and immobilizing the latter in the handle so that this pressure causes an axial displacement of the base and jaws and therefore a tightening thereof between them on the frustoconical bearing.
  • the jaws are turned over, the base no longer rests fixedly on a bearing surface of the handle, the frustoconical bearing acting on the jaws is no longer in a movable cap but in the handle itself, so that the movement causing the clamping of the jaws is no longer that of said bearing relative to jaws in a fixed axial position, but that of movable jaws axially with respect to a fixed span.
  • the tearing-off force to be combated is effected by a force directed towards the point of convergence of the jaws when the cap is tightened while according to the invention , said force is directed on the side opposite to said point of convergence.
  • this is arranged between the base of the clamping piece and a cover which is perforated centrally to let the cable pass, the peripheral part of said seal coming into contact with the inner wall of the handle.
  • the seal is provided with a peripheral rib intended to come into contact with the internal wall of the handle.
  • the invention proposes that the cover or the base of the clamping piece be provided with pins intended to come to force fit into conjugated housings arranged in the base or respectively the cover so as to assemble and immobilize together said cover, the clamping piece and the seal which is provided with openings sealed through by said studs.
  • the cover, the base of the clamping part and the seal are provided with openings for the passage of fixing screws which engage in threaded bores formed inside the handle, the the openings of the seal being adjusted in order to ensure a seal when the screws pass.
  • the cap and the base of the clamping piece or respectively the cover have parts which come into contact before the cap is completely screwed onto the handle so that said cap exerts direct pressure on the base or respectively the cover during its screwing.
  • the frustoconical bearing surface of the handle is divided into as many frustoconical sectors as the base has jaws, each sector being delimited laterally by walls parallel to the longitudinal axis of the handle so as to position and guide said jaws.
  • FIGS. 2 to 4 show a plug handle 1 in which a mooring device (2,3,4) according to the invention is fixed, intended to secure a cable 5.
  • the mooring device as shown more particularly in FIG. 1, comprises a clamping part 2, a seal 3 and a cover 4.
  • the clamping piece 2 comprises an annular base 6 from which project four jaws 7a to 7d arranged two by two along two orthogonal radial planes.
  • the jaws 7a to 7d are attached elastically to the base 6 of the part 2 by a part of thin material.
  • the seal 3 has (FIGS. 1 to 4), a perforated central part in the form, for example, of a hyperboloid of revolution intended to conform elastically to the shape of the cable 5 to be secured (FIGS. 2 to 4), an annular flat part 8 and a peripheral part provided with a rib 9 ( Figures 1 and 2).
  • the cover 4 has an annular part 10, from which project two small studs 11a, 11b, diametrically opposite.
  • the base 6 of the clamping part 2 and the annular part 8 of the seal 3 have openings respectively 12a, 12b and 13a, 13b, positioned in the same way as the pins 11a, 11b of the cover 4.
  • annular parts 10 and 8 of the cover and ..respectively of the seal, as well as the base 6 of the part 2 have diametrically opposite openings, respectively 14a, 14b, 15a, 15b and 16a, 16b, all positioned in the same way.
  • the parts 2, 3 and 4 are intended to be assembled in the order shown in FIG. 1 to form an assembly shown in FIGS. 2 to 4.
  • the pins 11a, 11b of the cover 4 pass through the openings 13a, 13b of the seal 3 in a leaktight manner and at least in part the openings 12a, 12b of the base 6 of the part 2 into which they are forced in and s '' immobilize, said openings 12a, 12b possibly being provided with a small shoulder internal retainer.
  • the seal 3 is therefore clamped between the annular part 10 of the cover 4 and the base 6 while the openings 14a, 15a, 16a and respectively 14b, 15b, 16b are aligned.
  • FIG. 2 shows the previously described 2,3,4 mooring device ready to be fixed on the plug handle 1.
  • the plug handle 1 has tapped bores, such as that shown in 17, intended to receive screws, such as that shown in 18.
  • Figures 2 and 3 are folded sections made along two orthogonal lines, so that they represent a single bore 17 for a screw 18, which allows to represent at the same time one of the assembly pins of parts 2, 3 and 4 (in fact there are two bores 17 diametrically opposed for two screws 18).
  • the plug handle 1 also has a frusto-conical surface (19) divided into four converging frusto-conical sectors on the side opposite to the arrival of the cable and we can partially see two, 19b, 19d in FIG.
  • the frustoconical sectors arranged in the handle are each delimited on its two sides by walls parallel to the longitudinal axis of the handle, such as the walls 20b, 20d seen in part in FIG. 2 (there is therefore in the mode of realization represented four sectors and eight walls 20).
  • the device 2,3,4 is arranged in the handle 1 so that the jaws 7a to 7d are directed towards the inside of said handle.
  • each jaw 7a to 7d has a face, turned towards the longitudinal axis of the device, which is provided with ribs or notches while the opposite face is convergent towards said axis relative to in the plane of the base 6.
  • Cable 5 is threaded through the perforated central parts parts 2, 3 and 4 which are assembled and arranged in the manner previously described, the central part of the joint pressing against said cable.
  • the cable 5 is of course then connected to the various contacts (not shown), provided in the handle, and the device is then fixed by screwing by means of the screws 18 which pass through the openings 14a to 16a and 14b to 16b to engage in the threaded bores 17 of the handle.
  • the jaws are also perfectly guided during the screwing between the different walls 20.
  • Figure 4 shows an embodiment with nut fastening.
  • the parts 2, 3 and 4 are identical to those shown in FIG. 1 with the exception, however, of the openings 14a, 14b to 16a, 16b.
  • the handle 1 is provided with an external thread intended to come into engagement with an internal thread of a nut or cap 21.
  • the cap 21 is provided with an oblique internal surface intended to come into contact with the cover 4 so as to exert by screwing pressure and holding the parts 2, 3 and 4 while playing the role of the screws 18 of the embodiment described above. .
  • the fixing means 18 or 21 of the device 2,3,4, the lateral retention of the jaws by the surfaces 20 and the arrangement of the jaws ensure good maintenance of the cable 5 in the event of twisting or pulling on it.
  • the device mooring having, for example, not necessarily a seal (depending on the applications), the cap 21 of the embodiment of FIG. 4 then acting directly on the part 2.

Abstract

L'invention concerne un dispositif d'amarrage d'un câble (5) électrique sur une poignée de fiche (1), comportant une pièce de serrage (2) qui est formée d'une embase annulaire (6) munie d'une pluralité de mors (7a à 7d) qui saillissent de ladite embase et qui sont aménagés de façon à coopérer par déformation élastique avec au moins une portée tronconique. Le dispositif selon l'invention est remarquable en ce que la pièce de serrage (2) est disposée dans la poignée de manière telle que les mors, dont au moins les parties extérieures des extrémités convergent à l'opposé de l'embase, soient disposés par rapport à cette dernière du côté opposé à l'arrivée du câble dans la poignée, tandis que la portée tronconique (19) est aménagée dans la poignée et converge vers l'axe longitudinal de celle-ci du côté opposé à ladite arrivée du câble, des moyens étant prévus (17, 18) pour exercer une pression sur l'embase et immobiliser celle-ci dans la poignée de telle sorte que cette pression entraîne un déplacement axial de l'embase et des mors et donc un resserrement de ceux-ci entre eux sur la portée tronconique.The invention relates to a device for securing an electric cable (5) to a plug handle (1), comprising a clamping part (2) which is formed by an annular base (6) provided with a plurality jaws (7a to 7d) which project from said base and which are arranged so as to cooperate by elastic deformation with at least one frustoconical bearing. The device according to the invention is remarkable in that the clamping piece (2) is arranged in the handle so that the jaws, of which at least the outer parts of the ends converge opposite the base, are arranged relative to the latter on the side opposite to the arrival of the cable in the handle, while the frustoconical surface (19) is arranged in the handle and converges towards the longitudinal axis of the latter on the side opposite to said arrival of the cable , means being provided (17, 18) for exerting pressure on the base and immobilizing it in the handle so that this pressure causes an axial displacement of the base and the jaws and therefore a tightening of these these between them on the frustoconical range.

Description

L'invention concerne un dispositif d'amarrage d'un câble électrique sur une poignée de fiche.The invention relates to a device for securing an electric cable to a plug handle.

Parmi les nombreux dispositifs d'amarrage de câbles électriques sur les poignées de fiche, des dispositifs intéressants sont décrits dans les brevets Français 2140719 et 2309054 au nom de la même demanderesse.Among the numerous devices for securing electric cables on the plug handles, advantageous devices are described in French patents 2140719 and 2309054 in the name of the same applicant.

Ces brevets décrivent des dispositifs comportant une pièce de serrage formée d'une embase annulaire fixe en position qui est munie d'une pluralité de mâchoires ou mors aménagés de façon à coopérer par déformation élastique avec au moins une portée tronconique.These patents describe devices comprising a clamping part formed by an annular base fixed in position which is provided with a plurality of jaws or jaws arranged so as to cooperate by elastic deformation with at least one frustoconical bearing.

Dans ces dispositifs l'embase repose, avec généralement interposition d'un joint d'étanchéité, sur une portée de la poignée et les mors s'érigent au-dessus de l'embase tandis qu'une portée tronconique est aménagée dans un chapeau de manière à assurer lors de la fixation dudit chapeau sur la poignée, un serrage des mors sur le câble.In these devices, the base rests, with generally the interposition of a seal, on a span of the handle and the jaws are erected above the base while a frustoconical bearing is arranged in a cap. so as to ensure when fixing said cap on the handle, a clamping of the jaws on the cable.

Dans ces dispositifs, le joint assure une étanchéité entre l'embase et la poignée, tout en s'appliquant, grâce à une forme spéciale, sur le câble, mais les mors restent vulnérables aux intempéries et notamment au gel puisqu'ils sont disposés au-dessus dudit joint et tournés vers le chapeau.In these devices, the seal provides a seal between the base and the handle, while being applied, thanks to a special shape, to the cable, but the jaws remain vulnerable to bad weather and in particular to frost since they are placed at the above said seal and turned towards the cap.

L'assemblage et le guidage des mors restent en outre délicats et leur serrage sur le câble souvent insuffisant.The assembly and guiding of the jaws also remains delicate and their tightening on the cable is often insufficient.

Afin notamment de faciliter le montage des pièces, d'améliorer le serrage des mors et de leur assurer une meilleure protection, l'invention propose un dispositif comportant de manière connue une pièce de serrage qui est formée d'une embase annulaire munie d'une pluralité de mors qui saillissent de ladite embase et qui sont aménagés de façon à coopérer par déformation élastique avec au moins une portée tronconique, le dispositif selon l'invention étant remarquable en ce que la pièce de serrage est disposée dans la poignée de manière telle que les mors, dont au moins les parties extérieures des extrémités convergent à l'opposé de l'embase, soient disposés par rapport à cette dernière du côté opposé à l'arrivée du câble dans la poignée, tandis que la portée tronconique est aménagée dans la poignée et converge vers l'axe longitudinal de celle-ci du côté opposé à ladite arrivée du câble, des moyens étant prévus pour exercer une pression sur l'embase et immobiliser celle-ci dans la poignée de telle sorte que cette pression entraine un déplacement axial de l'embase et des mors et donc un resserrement de ceux-ci entre eux sur la portée tronconique.In particular in order to facilitate the mounting of the parts, to improve the tightening of the jaws and to provide them with better protection, the invention provides a device comprising in known manner a clamping part which is formed of an annular base provided with a plurality of jaws which project from said base and which are arranged so as to cooperate by elastic deformation with at least one frustoconical bearing, the device according to the invention being remarkable in that the clamping piece is arranged in the handle so that the bits, of which at least the outer parts of the ends converge opposite the base, are arranged relative to the latter on the side opposite to the arrival of the cable in the handle, while the frustoconical bearing is arranged in the handle and converges towards the longitudinal axis of the latter on the side opposite to said arrival of the cable, means being provided for exerting pressure on the base and immobilizing the latter in the handle so that this pressure causes an axial displacement of the base and jaws and therefore a tightening thereof between them on the frustoconical bearing.

Dans le dispositif selon l'invention, par rapport aux dispositifs de l'art connu mentionnés ci-avant, les mors sont retournés, l'embase ne repose plus de manière fixe sur une portée de la poignée, la portée tronconique agissant sur les mors n'est plus dans un chapeau mobile mais dans la poignée elle-même, de telle sorte que le mouvement entraînant le serrage des mors n'est plus celui de ladite portée par rapport à des mors en position axiale fixe, mais celui de mors mobiles axialement par rapport à une portée fixe.In the device according to the invention, compared to the devices of the known art mentioned above, the jaws are turned over, the base no longer rests fixedly on a bearing surface of the handle, the frustoconical bearing acting on the jaws is no longer in a movable cap but in the handle itself, so that the movement causing the clamping of the jaws is no longer that of said bearing relative to jaws in a fixed axial position, but that of movable jaws axially with respect to a fixed span.

On peut constater que dans le brevet antérieur 2140719 précité, l'effort d'arrachement à combattre (traction sur le câble) s'effectue selon une force dirigée vers le point de convergence des mors lorsque le chapeau est serré alors que selon l'invention, ladite force est dirigée du côté opposé audit point de convergence.It can be seen that in the aforementioned prior patent 2140719, the tearing-off force to be combated (traction on the cable) is effected by a force directed towards the point of convergence of the jaws when the cap is tightened while according to the invention , said force is directed on the side opposite to said point of convergence.

Selon un mode de réalisation muni d'un joint d'étanchéité, celui-ci est aménagé entre l'embase de la pièce de serrage et un couvercle qui est ajouré centralement pour laisser passer le câble, la partie périphérique dudit joint venant au contact de la paroi interne de la poignée.According to an embodiment provided with a seal, this is arranged between the base of the clamping piece and a cover which is perforated centrally to let the cable pass, the peripheral part of said seal coming into contact with the inner wall of the handle.

Avantageusement dans ce cas le joint est pourvu d'une nervure périphérique destinée à venir au contact de la paroi interne de la poignée.Advantageously in this case the seal is provided with a peripheral rib intended to come into contact with the internal wall of the handle.

Il est clair alors qu'avec une forme simple du joint, celui-ci permet d'assurer une étanchéité complète, les mors étant eux-mêmes protégés par ledit joint.It is clear then that with a simple shape of the seal, this makes it possible to ensure complete sealing, the jaws being themselves protected by said seal.

Pour faciliter le montage et la mise en place des éléments, l'invention propose que le couvercle ou l'embase de la pièce de serrage soit pourvu de tétons destinés à venir s'emboîter à force dans des logements conjugués aménagés dans l'embase ou respectivement le couvercle de manière à assembler et immobiliser ensemble ledit couvercle, la pièce de serrage et le joint qui est muni d'ajours traversés de manière étanche par lesdits tétons.To facilitate the assembly and installation of elements, the invention proposes that the cover or the base of the clamping piece be provided with pins intended to come to force fit into conjugated housings arranged in the base or respectively the cover so as to assemble and immobilize together said cover, the clamping piece and the seal which is provided with openings sealed through by said studs.

Selon un mode de réalisation, le couvercle, l'embase de la pièce de serrage et le joint sont pourvus d'ajours pour le passage de vis de fixation qui viennent en prise dans des alésages taraudés ménagés à l'intérieur de la poignée, les ajours du joint étant ajustés afin d'assurer une étanchéité au passage des vis.According to one embodiment, the cover, the base of the clamping part and the seal are provided with openings for the passage of fixing screws which engage in threaded bores formed inside the handle, the the openings of the seal being adjusted in order to ensure a seal when the screws pass.

Selon un autre mode de réalisation muni d'un chapeau adapté pour venir se visser sur la poignée, le chapeau et l'embase de la pièce de serrage ou respectivement le couvercle présentent des parties qui viennent en contact avant le vissage complet du chapeau sur la poignée de manière que ledit chapeau exerce une pression directe sur l'embase ou respectivement le couvercle au cours de son vissage.According to another embodiment provided with a cap adapted to be screwed onto the handle, the cap and the base of the clamping piece or respectively the cover have parts which come into contact before the cap is completely screwed onto the handle so that said cap exerts direct pressure on the base or respectively the cover during its screwing.

Avantageusement, la portée tronconique de la poignée est divisée en autant de secteurs tronconiques que l'embase possède de mors, chaque secteur étant délimité latéralement par des parois parallèles à l'axe longitudinal de la poignée de manière à positionner et guider lesdits mors.Advantageously, the frustoconical bearing surface of the handle is divided into as many frustoconical sectors as the base has jaws, each sector being delimited laterally by walls parallel to the longitudinal axis of the handle so as to position and guide said jaws.

Les secteurs tronconiques précités peuvent bien sûr être remplacés par de simples plans inclinés.The aforementioned frustoconical sectors can of course be replaced by simple inclined planes.

L'invention sera bien comprise à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels:

  • - la figure 1 représente en perspective trois éléments d'un dispositif selon l'invention, dans leurs positions relatives d'assemblage,
  • - la figure 2 est une coupe longitudinale d'un dispositif d'amarrage et d'une poignée de fiche avant fixation,
  • - la figure 3 est une coupe longitudinale semblable à la figure 2, le dispositif d'amarrage étant fixé dans la poignée,
  • - la figure 4 est une coupe longitudinale semblable à la figure 3, selon un autre mode de réalisation.
The invention will be clearly understood on reading the description which follows and which refers to the appended drawings in which:
  • FIG. 1 shows in perspective three elements of a device according to the invention, in their relative assembly positions,
  • FIG. 2 is a longitudinal section of a mooring device and of a plug handle before fixing,
  • FIG. 3 is a longitudinal section similar to FIG. 2, the mooring device being fixed in the handle,
  • - Figure 4 is a longitudinal section similar to the Figure 3, according to another embodiment.

Les figures 2 à 4 montrent une poignée de fiche 1 dans laquelle se fixe un dispositif d'amarrage (2,3,4) selon l'invention, destiné à arrimer un câble 5.FIGS. 2 to 4 show a plug handle 1 in which a mooring device (2,3,4) according to the invention is fixed, intended to secure a cable 5.

Le dispositif d'amarrage, comme le montre plus particulièrement la figure 1, comporte une pièce de serrage 2, un joint d'étanchéité 3 et un couvercle 4.The mooring device, as shown more particularly in FIG. 1, comprises a clamping part 2, a seal 3 and a cover 4.

La pièce de serrage 2 comporte une embase annulaire 6 de laquelle saillisent quatre mors 7a à 7d disposés deux à deux selon deux plans radiaux orthogonaux.The clamping piece 2 comprises an annular base 6 from which project four jaws 7a to 7d arranged two by two along two orthogonal radial planes.

Les mors 7a à 7d sont rattachés élastiquement à l'embase 6 de la pièce 2 par une partie de matière mince.The jaws 7a to 7d are attached elastically to the base 6 of the part 2 by a part of thin material.

Le joint 3 présente (figures 1 à 4), une partie centrale ajourée en forme, par exemple, d'hyperboloîde de révolution destinée à épouser élastiquement la forme du câble 5 à arrimer (figures 2 à 4), une partie plate annulaire 8 et une partie périphérique munie d'une nervure 9 (figures 1 et 2).The seal 3 has (FIGS. 1 to 4), a perforated central part in the form, for example, of a hyperboloid of revolution intended to conform elastically to the shape of the cable 5 to be secured (FIGS. 2 to 4), an annular flat part 8 and a peripheral part provided with a rib 9 (Figures 1 and 2).

Le couvercle 4 présente une partie annulaire 10, de laquelle saillissent deux petits tétons 11a, 11b, diamétralement opposés.The cover 4 has an annular part 10, from which project two small studs 11a, 11b, diametrically opposite.

L'embase 6 de la pièce de serrage 2 et la partie annulaire 8 du joint 3 présentent des ajours respectivement 12a, 12b et 13a, 13b, positionnés de la même manière que les tétons 11a, 11b du couvercle 4.The base 6 of the clamping part 2 and the annular part 8 of the seal 3 have openings respectively 12a, 12b and 13a, 13b, positioned in the same way as the pins 11a, 11b of the cover 4.

En outre, les parties annulaires 10 et 8 du couvercle et ..respectivement du joint, ainsi que l'embase 6 de la pièce 2, présentent des ajours diamétralement opposés, respectivement 14a,14b, 15a,15b et 16a,16b, tous positionnés de la même manière.In addition, the annular parts 10 and 8 of the cover and ..respectively of the seal, as well as the base 6 of the part 2, have diametrically opposite openings, respectively 14a, 14b, 15a, 15b and 16a, 16b, all positioned in the same way.

Les pièces 2,3 et 4 sont destinées à être assemblées dans l'ordre montré à la figure 1 pour former un ensemble montré aux figures 2 à 4.The parts 2, 3 and 4 are intended to be assembled in the order shown in FIG. 1 to form an assembly shown in FIGS. 2 to 4.

Pour cet assemblage les tétons 11a,11b du couvercle 4 traversent de manière étanche les ajours 13a,13b du joint 3 et au moins en partie les ajours 12a,12b de l'embase 6 de la pièce 2 dans lesquels ils rentrent à force et s'immobilisent, lesdits ajours 12a,12b étant éventuellement munis d'un petit épaulement interne de retenue.For this assembly, the pins 11a, 11b of the cover 4 pass through the openings 13a, 13b of the seal 3 in a leaktight manner and at least in part the openings 12a, 12b of the base 6 of the part 2 into which they are forced in and s '' immobilize, said openings 12a, 12b possibly being provided with a small shoulder internal retainer.

Après assemblage, le joint 3 est donc enserré entre la partie annulaire 10 du couvercle 4 et l'embase 6 tandis que les ajours 14a, 15a, 16a et respectivement 14b, 15b, 16b sont alignés.After assembly, the seal 3 is therefore clamped between the annular part 10 of the cover 4 and the base 6 while the openings 14a, 15a, 16a and respectively 14b, 15b, 16b are aligned.

La figure 2 montre le dispositif d'amarrage 2,3,4 précédemment décrit prêt à être fixé sur la poignée de fiche 1.FIG. 2 shows the previously described 2,3,4 mooring device ready to be fixed on the plug handle 1.

La poignée de fiche 1 présente, selon les figures 2 et 3, des alésages taraudés, tels que celui représenté en 17, destinés à recevoir des vis, telles que celle représentée en 18.According to FIGS. 2 and 3, the plug handle 1 has tapped bores, such as that shown in 17, intended to receive screws, such as that shown in 18.

Pour montrer plus de détails, et.grâce aux divers plans de symétrie, les coupes des figures 2 et 3 sont des coupes rabattues exécutées selon deux lignes orthogonales, de telle sorte qu'elles représentent un seul alésage 17 pour une vis 18, ce qui permet de représenter en même temps un des tétons d'assemblage des pièces 2, 3 et 4 (en fait il y'a deux alésages 17 diamétralement opposés pour deux vis 18).To show more details, and thanks to the various planes of symmetry, the sections of Figures 2 and 3 are folded sections made along two orthogonal lines, so that they represent a single bore 17 for a screw 18, which allows to represent at the same time one of the assembly pins of parts 2, 3 and 4 (in fact there are two bores 17 diametrically opposed for two screws 18).

La poignée de fiche 1 présente également une portée tronconique (19) divisée en quatre secteurs tronconiques convergents du côté opposé à l'arrivée du câble et l'on peut en voir partiellement deux, 19b,19d sur la figure 2.The plug handle 1 also has a frusto-conical surface (19) divided into four converging frusto-conical sectors on the side opposite to the arrival of the cable and we can partially see two, 19b, 19d in FIG.

Les secteurs tronconiques aménagés dans la poignée sont délimités chacun sur ses deux côtés par des parois parallèles à l'axe longitudinal de la poignée, telles que les parois 20b,20d vues en partie sur la figure 2 (il y a donc dans le mode de réalisation représenté quatre secteurs et huit parois 20).The frustoconical sectors arranged in the handle are each delimited on its two sides by walls parallel to the longitudinal axis of the handle, such as the walls 20b, 20d seen in part in FIG. 2 (there is therefore in the mode of realization represented four sectors and eight walls 20).

Comme le montre les figures 2 à 4, le dispositif 2,3,4 est disposé dans la poignée 1 de telle sorte que les mors 7a à 7d soient dirigés vers l'intérieur de ladite poignée.As shown in Figures 2 to 4, the device 2,3,4 is arranged in the handle 1 so that the jaws 7a to 7d are directed towards the inside of said handle.

Comme le montre plus particulièrement la figure 1, l'extrémité de chaque mors 7a à 7d présente une face, tournée vers l'axe longitudinal du dispositif, qui est munie de nervures ou crans tandis que la face opposée est convergente vers ledit axe par rapport au plan de l'embase 6.As shown more particularly in Figure 1, the end of each jaw 7a to 7d has a face, turned towards the longitudinal axis of the device, which is provided with ribs or notches while the opposite face is convergent towards said axis relative to in the plane of the base 6.

La fixation du dispositif 2,3,4 et l'arrimage du câble sont simples à comprendre.The fixing of the device 2,3,4 and the securing of the cable are simple to understand.

Le câble 5 est enfilé dans les parties centrales ajourées des pièces 2,3 et 4 qui sont assemblées et disposées de la manière précédemment décrite, la partie centrale -du joint se serrant contre ledit câble.Cable 5 is threaded through the perforated central parts parts 2, 3 and 4 which are assembled and arranged in the manner previously described, the central part of the joint pressing against said cable.

Le câble 5 est bien entendu ensuite connecté aux divers contacts (non représentés), prévus dans la poignée, et le dispositif est alors fixé par vissage au moyen des vis 18 qui traversent les ajours 14a à 16a et 14b à 16b pour venir en prise dans les alésages taraudés 17 de la poignée.The cable 5 is of course then connected to the various contacts (not shown), provided in the handle, and the device is then fixed by screwing by means of the screws 18 which pass through the openings 14a to 16a and 14b to 16b to engage in the threaded bores 17 of the handle.

Il est intéressant de noter au passage que les ajours 15a et 15b du joint 3 sont ajustés de manière que ledit joint assure également une bonne étanchéité au passage des vis.It is interesting to note in passing that the openings 15a and 15b of the seal 3 are adjusted so that said seal also provides a good seal when the screws pass.

Au cours du vissage, les extrémités convergentes des mors prennent appui sur les secteurs tronconiques de la poignée, entraînant ainsi un resserrement des mors qui viennent enserrer énergiquement le câble 5 (figure 3).During the screwing, the converging ends of the jaws are supported on the frustoconical sectors of the handle, thus causing a tightening of the jaws which energetically grip the cable 5 (Figure 3).

Les mors sont en outre parfaitement guidés au cours du vissage entre les différentes parois 20.The jaws are also perfectly guided during the screwing between the different walls 20.

La figure 4 montre un mode de réalisation à fixation par écrou.Figure 4 shows an embodiment with nut fastening.

Dans ce mode de réalisation, les pièces 2,3 et 4 sont identiques à celles représentées sur la figure 1 à l'exception toutefois des ajours 14a,14b à 16a,16b.In this embodiment, the parts 2, 3 and 4 are identical to those shown in FIG. 1 with the exception, however, of the openings 14a, 14b to 16a, 16b.

Dans ce mode de réalisation, la poignée 1 est munie d'un filetage externe destiné à venir en prise avec un filetage interne d'un écrou ou chapeau 21.In this embodiment, the handle 1 is provided with an external thread intended to come into engagement with an internal thread of a nut or cap 21.

Le chapeau 21 est pourvu d'une surface interne oblique destinée à venir au contact du couvercle 4 de manière à exercer par vissage une pression et un maintien des pièces 2,3 et 4 en jouant le rôle des vis 18 du mode de réalisation précédemment décrit.The cap 21 is provided with an oblique internal surface intended to come into contact with the cover 4 so as to exert by screwing pressure and holding the parts 2, 3 and 4 while playing the role of the screws 18 of the embodiment described above. .

Les moyens de fixation 18 ou 21 du dispositif 2,3,4, la retenue latérale des mors par les surfaces 20 et la disposition des mors assurent un bon maintien du câble 5 en cas de torsion ou de traction sur celui-ci.The fixing means 18 or 21 of the device 2,3,4, the lateral retention of the jaws by the surfaces 20 and the arrangement of the jaws ensure good maintenance of the cable 5 in the event of twisting or pulling on it.

De nombreuses modifications peuvent évidemment être apportées sans sortir du cadre de l'invention, le dispositif d'amarrage n'ayant, par exemple, pas nécessairement de joint (selon les applications), le chapeau 21 du mode de réalisation de la figure 4 agissant alors directement sur la pièce 2.Many modifications can obviously be made without departing from the scope of the invention, the device mooring having, for example, not necessarily a seal (depending on the applications), the cap 21 of the embodiment of FIG. 4 then acting directly on the part 2.

De même, au lieu d'avoir une portée tronconique divisée en secteurs, il est possible d'aménager plusieurs plans inclinés etc.Likewise, instead of having a frustoconical bearing divided into sectors, it is possible to arrange several inclined planes etc.

Claims (8)

1) Dispositif d'amarrage d'un câble (5) électrique sur une poignée de fiche (1), comportant une pièce de serrage (2) qui est formée d'une embase annulaire (6) munie d'une pluralité de mors (7a à 7d) qui saillissent de ladite embase et qui sont aménagés de façon à coopérer par déformation élastique avec au moins une portée tronconique, caractérisé en ce que la pièce de serrage (2) est disposée dans la poignée de manière telle que les mors, dont au moins les parties extérieures des extrémités convergent à l'opposé de l'embase, soient disposés par rapport à cette dernière du côté opposé à l'arrivée du câble dans la poignée, tandis que la portée tronconique (19) est aménagée dans la poignée et converge vers l'axe longitudinal de celle-ci du côté opposé à ladite arrivée du câble, des moyens étant prévus (17,18 ou 21) pour exercer une pression sur l'embase et immobiliser celle-ci dans la poignée de telle sorte que cette pression entraîne un déplacement axial de l'embase et des mors et donc un resserrement de ceux-ci entre eux sur la portée tronconique.1) Device for securing an electric cable (5) to a plug handle (1), comprising a clamping part (2) which is formed of an annular base (6) provided with a plurality of jaws ( 7a to 7d) which project from said base and which are arranged so as to cooperate by elastic deformation with at least one frustoconical bearing, characterized in that the clamping piece (2) is arranged in the handle so that the jaws, of which at least the outer parts of the ends converge opposite the base, are arranged relative to the latter on the side opposite to the arrival of the cable in the handle, while the frustoconical surface (19) is arranged in the handle and converges towards the longitudinal axis thereof on the side opposite to said cable inlet, means being provided (17, 18 or 21) for exerting pressure on the base and immobilizing it in the handle of such so that this pressure causes an axial displacement of the base and the jaws and therefore u n tightening of these between them on the frustoconical bearing. 2) Dispositif d'amarrage selon la revendication 1 muni d'un joint d'étanchéité (3), caractérisé en ce que le joint (3) est aménagé entre l'embase (6) de la pièce de serrage (2) et un couvercle (4) qui est ajouré centralement pour laisser passer le câble (5), la partie périphérique dudit joint venant au contact de la paroi interne de la poignée (1).2) Mooring device according to claim 1 provided with a seal (3), characterized in that the seal (3) is arranged between the base (6) of the clamping piece (2) and a cover (4) which is perforated centrally to let the cable (5) pass, the peripheral part of said seal coming into contact with the internal wall of the handle (1). 3) Dispositif d'amarrage selon la revendication 2, caractérisé en ce que le joint (3) est muni d'une nervure périphérique (9) destinée à venir au contact de la paroi interne de la poignée.3) Mooring device according to claim 2, characterized in that the seal (3) is provided with a peripheral rib (9) intended to come into contact with the internal wall of the handle. 4) Dispositif selon l'une des revendications 2 et 3, caractérisé en ce que le couvercle (4) ou l'embase (6) de la pièce de serrage (2) est pourvu de tétons (11a,11b) destinés à venir s'emboîter à force dans des logements conjugués (12a,12b) aménagés dans l'embase ou respectivement le couvercle de manière à assembler et immobiliser ensemble ledit couvercle (4), la pièce de serrage (2) et le joint (3) qui est muni d'ajours (13a,13b) traversés de manière étanche par lesdits tétons.4) Device according to one of claims 2 and 3, characterized in that the cover (4) or the base (6) of the clamping part (2) is provided with pins (11a, 11b) intended to come s '' force fit into conjugate housings (12a, 12b) arranged in the base or respectively the cover so as to assemble and immobilize together said cover (4), the clamping part (2) and the seal (3) which is provided with openings (13a, 13b) crossed in leaktight manner by said pins. 5) Dispositif d'amarrage selon l'une des revendications 2 à 4, caractérisé en ce que le couvercle (4), l'embase (6) de la pièce de serrage et le joint (3) sont pourvus d'ajours (14a,14b,15a,15b,16a,16b) pour le passage de vis (18) de fixation qui viennent en prise dans des alésages taraudés (17) ménagés à l'intérieur de la poignée, les ajours (15a,15b) du joint étant ajustés afin d'assurer une étanchéité au passage des vis.5) Mooring device according to one of claims 2 to 4, characterized in that the cover (4), the base (6) of the clamping piece and the seal (3) are provided with openings (14a, 14b, 15a, 15b, 16a, 16b) for the passage of fixing screws (18) which engage in threaded bores (17) formed inside the handle, the openings (15a, 15b) of the seal being adjusted in order to ensure a tight seal at the passage of the screws. 6) Dispositif d'amarrage selon l'une des revendications 1 à 4, muni d'un chapeau (21) adapté pour venir se visser sur la poignée (1), caractérisé en ce que le chapeau (21) et l'embase (6) de la pièce de serrage (2) ou respectivement le couvercle (4), présentent des parties qui viennent en contact avant le vissage complet du chapeau sur la poignée de manière que ledit chapeau exerce une pression directe sur l'embase ou respectivement le couvercle au cours de son vissage.6) Mooring device according to one of claims 1 to 4, provided with a cap (21) adapted to be screwed onto the handle (1), characterized in that the cap (21) and the base ( 6) of the clamping part (2) or respectively the cover (4), have parts which come into contact before the cap is completely screwed onto the handle so that said cap exerts direct pressure on the base or respectively the cover during screwing. 7) Dispositif d'amarrage selon l'une des revendications 1 à 6, caractérisé en ce que la portée tronconique (19) de la poignée (1) est divisée en autant de secteurs tronconiques que l'embase possède de mors (7), chaque secteur étant délimité latéralement par des parois (20) parallèles à l'axe longitudinal de la poignée de manière à positionner et guider lesdits mors.7) Mooring device according to one of claims 1 to 6, characterized in that the frustoconical surface (19) of the handle (1) is divided into as many frustoconical sectors as the base has jaws (7), each sector being delimited laterally by walls (20) parallel to the longitudinal axis of the handle so as to position and guide said jaws. 8) Dispositif d'amarrage selon l'une des revendications 1 à 6, caractérisé en ce que la portée tronconique (19) de la poignée (1) est remplaçée par autant de plans inclinés que l'embase possède de mors (7), lesdits plans convergeant vers l'axe longitudinal de la poignée du cotée opposé à l'arrivée du câble tandis que chaque plan est délimité latéralement par des parois (20) parallèles audit axe longitudinal de manière à positionner et guider lesdits mors.8) Mooring device according to one of claims 1 to 6, characterized in that the frustoconical bearing surface (19) of the handle (1) is replaced by as many inclined planes as the base has jaws (7), said planes converging towards the longitudinal axis of the handle on the side opposite to the arrival of the cable while each plane is delimited laterally by walls (20) parallel to said longitudinal axis so as to position and guide said jaws.
EP84401902A 1984-09-24 1984-09-24 Device for clamping an electrical cable on a plug grip Withdrawn EP0175827A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP84401902A EP0175827A1 (en) 1984-09-24 1984-09-24 Device for clamping an electrical cable on a plug grip
US06/689,791 US4640568A (en) 1984-09-24 1985-01-08 Electric cable connector handle
AU46214/85A AU580084B2 (en) 1984-09-24 1985-08-15 Electric cable connector handle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84401902A EP0175827A1 (en) 1984-09-24 1984-09-24 Device for clamping an electrical cable on a plug grip

Publications (1)

Publication Number Publication Date
EP0175827A1 true EP0175827A1 (en) 1986-04-02

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ID=8192915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401902A Withdrawn EP0175827A1 (en) 1984-09-24 1984-09-24 Device for clamping an electrical cable on a plug grip

Country Status (3)

Country Link
US (1) US4640568A (en)
EP (1) EP0175827A1 (en)
AU (1) AU580084B2 (en)

Cited By (4)

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DE4116911A1 (en) * 1991-05-18 1991-10-24 Elektroinstallation Ruhla Gmbh Cable strain relief device - has U=shaped clip pressed into tapering slot of infeed aperture
EP0921604A1 (en) * 1997-12-03 1999-06-09 Palazzoli S.p.A. Device for clamping the cable in electrical outlets or plugs
WO1999040651A1 (en) * 1998-02-06 1999-08-12 Palazzoli S.P.A. Device for clamping the cable in electrical outlets or plugs
EP2323228A3 (en) * 2009-11-14 2013-01-23 Harting Electronics GmbH & Co. KG Connector housing with angled strain relief element

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US5083938A (en) * 1990-11-01 1992-01-28 Leviton Manufacturing Co. Inc. Positive retention electrical connector
DE10011341C2 (en) * 2000-03-10 2002-03-07 Aloys Mennekes Anlagengmbh & C Electrical connector
US6361342B1 (en) * 2000-09-11 2002-03-26 Baker Hughes Incorporated Pothead with pressure energized lip seals
JP3998203B2 (en) * 2003-09-05 2007-10-24 日本航空電子工業株式会社 connector
EP3496211B1 (en) * 2017-12-07 2020-09-09 Aptiv Technologies Limited Electric coupler
JP6860835B2 (en) * 2017-12-19 2021-04-21 住友電装株式会社 connector

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DE1489532A1 (en) * 1966-01-05 1969-04-03 Hans Simon Lamp holder with strain relief
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DE2211119A1 (en) * 1971-03-16 1972-09-21 Sepm Sa Device for connecting a cable to the housing of an electrical connector or the like
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Publication number Priority date Publication date Assignee Title
DE4116911A1 (en) * 1991-05-18 1991-10-24 Elektroinstallation Ruhla Gmbh Cable strain relief device - has U=shaped clip pressed into tapering slot of infeed aperture
EP0921604A1 (en) * 1997-12-03 1999-06-09 Palazzoli S.p.A. Device for clamping the cable in electrical outlets or plugs
US6149455A (en) * 1997-12-03 2000-11-21 Palazzoli S.P.A. Device for clamping the cable in electrical outlets or plugs
WO1999040651A1 (en) * 1998-02-06 1999-08-12 Palazzoli S.P.A. Device for clamping the cable in electrical outlets or plugs
EP2323228A3 (en) * 2009-11-14 2013-01-23 Harting Electronics GmbH & Co. KG Connector housing with angled strain relief element

Also Published As

Publication number Publication date
US4640568A (en) 1987-02-03
AU4621485A (en) 1986-04-10
AU580084B2 (en) 1988-12-22

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