EP0175033A1 - Scart plug - Google Patents

Scart plug Download PDF

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Publication number
EP0175033A1
EP0175033A1 EP84401578A EP84401578A EP0175033A1 EP 0175033 A1 EP0175033 A1 EP 0175033A1 EP 84401578 A EP84401578 A EP 84401578A EP 84401578 A EP84401578 A EP 84401578A EP 0175033 A1 EP0175033 A1 EP 0175033A1
Authority
EP
European Patent Office
Prior art keywords
shells
shell
nut
base
clamping piece
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Withdrawn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
EP84401578A
Other languages
German (de)
French (fr)
Inventor
Daniel Cassan
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.)
FRANCAISE METALLO (SA) Ste
Original Assignee
FRANCAISE METALLO (SA) Ste
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
Priority to FR8301016A priority Critical patent/FR2539923B1/en
Priority claimed from FR8320518A external-priority patent/FR2557379B2/en
Application filed by FRANCAISE METALLO (SA) Ste filed Critical FRANCAISE METALLO (SA) Ste
Priority to EP84401578A priority patent/EP0175033A1/en
Publication of EP0175033A1 publication Critical patent/EP0175033A1/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members

Definitions

  • the present invention relates to connectors for scarting, and in particular a 20-pin male connector intended to connect various scarting equipment to a television set, and of the kind defined by French Standard NF C 92-250.
  • a plug or connector of the aforementioned type which comprises a shell supporting a base carrying protruding or male contacts, surrounded by a metal shield, said shell comprising a circular orifice intended to allow a strand of cables to pass, and on which can be screwed a nut which, when tightened, allows the said strand to be held in place.
  • this connector has several drawbacks. On the one hand, its size, both in height and in length, in particular as regards the position of the orifice and the nut on the shell, raises difficulties when it is a question of juxtaposing several of these connectors. over a small space, as will be seen later with reference to the drawings.
  • the tightening of the cable strand by the nut is long and tedious, very many turns of the nut being generally necessary to obtain an effective tightening, in particular when the cable strand is of small diameter.
  • the shell being made up of two half-shells assembled by cylindrical tenons associated with holes of the same diameter, its resistance is low and, despite the holding in place of the two half-shells by means of the nut, it can be damaged during an accidental separation of the two half-shells, as well as the connector contact members.
  • the invention aims to overcome these drawbacks and to provide a connector of the type mentioned above, the shell of which, once assembled, has great mechanical strength.
  • Another object of the invention is to provide a connector whose shape and external dimensions are such that several of these connectors can be arranged longitudinally in bases associated with a substantially reduced bulk.
  • a final object of the invention is to provide a connector in which the tightening of the cable strand is efficient and quick to execute.
  • such a connector is constituted by two parts articulated at their front part forming a shell and including a series of contacts arranged on a base surrounded by a metal shield.
  • the two half-shells are joined together at the upper part and at the rear part by assembly means and, once assembled, have an orifice intended to allow a set of cables to pass, the ends of which are connected to the said contacts, the so-called orifice having the shape of a hollow cylinder whose geometric intersection with the body of the shell is located on the upper surface of said shell.
  • a nut means is provided to be screwed around said hollow cylinder threaded for this purpose, for the purpose of tightening said set of cables and locking the two constituent half-shells.
  • the means for fixing the two half-shells comprise, on at least one of the two half-shells, means forming projections arranged to cooperate by wedging with at least one complementary groove provided on the other half-shell, while the clamping piece constituted by the hollow cylindrical part externally comprises two diametrically opposed threaded sectors separated by parts smooth and a nut consisting of a cylindrical part threaded only on two diametrically opposite sectors and a conical part, so that it suffices to present opposite the smooth parts of said nut and the threaded parts of said cylindrical part tightening so that a rotational movement of about 90 ° then printed on said nut ensures both the locking of the two half-shells on the side opposite the joint and the required tightening of said strand of cables by grip of said tapping on said thread.
  • the shape given to the rear part of the shell provided with the clamping part and which will be defined below is designed so that it is possible to reduce the pitch of the connector and thus with a minimum increase in size. longitudinal to have at least two
  • a connector of the kind mentioned above comprises in a known manner a flat base supporting a series of 20 contacts (not shown) of the type defined for example by Standard NZ C 92-250 concerning male connectors intended to connect teams scarting devices to a television set fitted with an appropriate corresponding female connector.
  • FIG. 1 shows the connector assembly constituted by the shell 10 and the nut 50 intended to grip, by fixing to the assembled shell, a strand of cables (also not shown) after soldering or crimping them on the so-called contacts, when assembling the connector.
  • the shell 10 comprises a half-shell 10a and a half-shell 10b, the respective shapes and dimensions of which are substantially symmetrical with respect to a vertical median plane, except as regards the fixing arrangements described below.
  • the two half-shells are connected to each other by a finer rectilinear part 12 coming from molding, to the part designated below "before" of said shells, and forming a joint.
  • Each half-shell 10a, lOb comprises respectively, extending horizontally in the lower part thereof, two internal grooves l4a, l6a and 14b, 16b (of which only the grooves 14b and 16b are visible in the figure), corresponding to the outer surface of the half-shells, respectively to horizontal rectilinear bosses 18a, 20a (visible in the figure) and 18b, 20b (not visible in the figure); These grooves are provided to hold the base and the shield in place when the two half-shells are assembled together, by pivoting around the articulation 12.
  • the half-shell 10a in this example comprises on its rear edge, opposite the front edge associated with the joint 12, two projections 22, 24 forming pawls for fixing, provided for be engaged in a groove 26 located on an extension 28 of the rear end of the half-shell lOb.
  • the half-shell 10a comprises, on its upper rim opposite the corresponding upper rim of the half-shell 10b during assembly, two identical projections 30, 32 forming pawls, intended to penetrate into a groove 34 located in an extension 36 of the upper edge of the half-shell 10b.
  • each of the rear parts of the half-shells 10a, lOb forming, after assembly, the shell 10 comprises from below upwards a part 37 perpendicular to its base respectively provided with latching pawls 22, 24 for the half-shell 10a and of the groove 26 for the half-shell lOb, a part 38 parallel to the base forming a withdrawal and an inclined plane 39 in which is provided an orifice delimited by a half of hollow cylinder forming after assembly of the two half-shells the hollow cylindrical part 40.
  • the hollow cylinder 40 is provided with threaded sectors 42a, 42b each covering an angle of 90 to 95 °, separated by smooth non-threaded sectors.
  • tabs 44a, 44b, 46a, 46b are distributed regularly around the periphery of the orifice and extend in a axial direction. They are each provided at their end remote from the said periphery with a spherical boss 48 and end with a sharp edge 49 whose role is explained below.
  • the assembly is completed by a nut 50 comprising a cylindrical part 52, the inside of which is tapped so as to correspond to the threaded sectors 42a, 42b of the cylinder 40, surmounted by a conical part narrowing upwards 54, the interior is smooth.
  • the cable strand is clamped as follows. After the ends of the different cables have been fixed on their respective contacts, the two half-shells have been joined by pivoting around their articulation point 12 so as to enclose the base in the grooves 14a, 16a, 14b, 16b , and the strand of cables in the cylindrical orifice 40, the nut 50 having been previously threaded onto the said strand before crimping or welding the cables, the nut is brought against the cylinder 40 delimiting the orifice, until that the four bosses 48 are firmly pushed so that the four tabs which carry them grip the strand, thanks to the conical part 54 of the nut, while the sharp edges 49 bite into the strand so as to improve its retention in place.
  • a modified passage cylinder 140 formed during the assembly of the two half-shells 10a, 10b described above is arranged to cooperate with a nut 50 as described with reference to Figure 1.
  • the cylinder 140 for the passage of the cable strand (not shown) comprises two threaded sectors 142a, 142b each comprising, at their end clockwise, stops 147 allowing the nut to be screwed by quarter turn on the cylinder 140, to immobilize these two parts relative to each other.
  • the diameter at the bottom of the thread of the threads 142a, 142b of the cylinder 140 increases in the direction of screwing up to the stop 147.
  • the elastic deformation of the nut and of the cylinder which advantageously consist of a plastic material of suitable flexibility, is sufficient to lock the nut and the cylinder one by relative to the other, so as to prevent any loosening, without the two parts being definitively immobilized, an adequate torque exerted on the nut still allowing it to be loosened. This prevents any accidental loosening of the nut, which would significantly reduce the overall mechanical resistance of the connector and its cable strand.
  • Figures 2 and 3 illustrate how the invention can significantly reduce the pitch of the connector and therefore its longitudinal size.
  • the connector according to the present invention in which, as can be seen in FIGS. 1 and 3, the part 39 is substantially offset inwards relative to the rear face of the connector, which reduces the overshoot of the nut at the rear, two connectors can be arranged longitudinally so that they are separated by a distance A 'of the order of 56 mm., the elevation of the right-hand base relative to that of the left being always d 'a distance B (height of the shield). This is particularly advantageous when many connectors of the type described are to be plugged into their sockets on a reduced surface.
  • the connector according to the invention can be used with the same female bases as those which are currently used with the connector of the prior art recalled above.
  • the present invention is not limited to the above description, it also includes any modifications that may be made by those skilled in the art within the framework of their normal knowledge.
  • the materials constituting the various components of the assembly may be any.
  • the shell could for example be made of polypropylene.
  • a rack can be substituted for the threaded parts described by way of example.
  • the invention also applies to female connectors, for example for extension cords.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The subject of the invention is a scart plug provided for connecting various items of television peripheral equipment to a television set provided with a corresponding scart socket. According to the invention, the plug comprises a shell (10) formed by two half-shells (10a, 10b) whose rear portion situated opposite the hinge (12) and which comprises the clamping piece (40) is constituted by a portion (37) perpendicular to the base of the shell and provided with hooking means provided on the half-shells. The shell is also formed by a portion (38) parallel to the base, forming an offset, and by an inclined plane on which the piece (40) is provided. By this arrangement a reduction in the longitudinal size results and, as a consequence, the step length, which makes it possible, with a minimum increase in the longitudinal size, to arrange in succession at least two identical connectors. <IMAGE>

Description

La présente invention concerne les connecteurs pour péritélévision, et en particulier un connecteur mâle à 20 broches prévu pour relier des équipements de péritélévision divers à un poste de télévision, et du genre défini par la Norme Française NF C 92-250.The present invention relates to connectors for scarting, and in particular a 20-pin male connector intended to connect various scarting equipment to a television set, and of the kind defined by French Standard NF C 92-250.

On connaît une fiche ou connecteur du genre précité qui comporte une coquille supportant un socle portant des contacts saillants, ou mâles,entouré d'un blindage métallique, la dite coquille comportant un orifice circulaire destiné à laisser passer un toron de câbles, et sur lequel peut être vissé un écrou qui,lorsqu'il est serré, permet le maintien en place du dit toron. Cependant ce connecteur présente plusieurs inconvénients. D'une part son encombrement,tant en hauteur qu'en longueur,notamment en ce qui concerne la position de l'orifice et de l'écrou sur la coquille, soulève des difficultés lorsqu'il s'agit de juxtaposer plusieurs de ces connecteurs sur un faible espace, comme on le verra plus loin en référence aux dessins. En outre, le serrage du toron de câbles par l'écrou est long et fastidieux,de très nombreux tours de l'écrou étant généralement nécessaires pour obtenir un serrage efficace,en particulier lorsque le toron de câbles est de faible diamètre. Enfin, la coquille étant constituée de deux demi-coquilles assemblées par des tenons cylindriques as- associés à des trous de même diamètre, sa résistance est faible et, malgré le maintien en place des deux demi-coquilles grâce à l'écrou, elle peut être endommagée lors d'un écartement accidentel des deux demi-coquilles, ainsi que les organes de contact du connecteur.A plug or connector of the aforementioned type is known which comprises a shell supporting a base carrying protruding or male contacts, surrounded by a metal shield, said shell comprising a circular orifice intended to allow a strand of cables to pass, and on which can be screwed a nut which, when tightened, allows the said strand to be held in place. However, this connector has several drawbacks. On the one hand, its size, both in height and in length, in particular as regards the position of the orifice and the nut on the shell, raises difficulties when it is a question of juxtaposing several of these connectors. over a small space, as will be seen later with reference to the drawings. In addition, the tightening of the cable strand by the nut is long and tedious, very many turns of the nut being generally necessary to obtain an effective tightening, in particular when the cable strand is of small diameter. Finally, the shell being made up of two half-shells assembled by cylindrical tenons associated with holes of the same diameter, its resistance is low and, despite the holding in place of the two half-shells by means of the nut, it can be damaged during an accidental separation of the two half-shells, as well as the connector contact members.

L'invention vise à pallier ces inconvénients et à proposer un connecteur du type mentionné ci-dessus dont la coquille présente, une fois assemblée, une grande résistance mécanique.The invention aims to overcome these drawbacks and to provide a connector of the type mentioned above, the shell of which, once assembled, has great mechanical strength.

Un autre objet de l'invention est de proposer un connecteur dont la forme et les dimensions extérieures sont telles que plusieurs de ces connecteurs puissent être disposés longitudinalement dans des embases associées avec un encombrement sensiblement réduit.Another object of the invention is to provide a connector whose shape and external dimensions are such that several of these connectors can be arranged longitudinally in bases associated with a substantially reduced bulk.

Un dernier objet de l'invention est de proposer un connecteur dans lequel le serrage du toron de câbles soit efficace et rapide à exécuter.A final object of the invention is to provide a connector in which the tightening of the cable strand is efficient and quick to execute.

Suivant la technique connue un tel connecteur est constitué par deux pièces articulées à leur partie antérieure formant coquille et incluant une série de contacts agencés sur un socle entouré d'un blindage métallique. Les deux demi-coquilles sont réunies entre elles à la partie supérieure et à la partie arrière par des moyens d'assemblage et présentent une fois assemblées un orifice destiné à laisser passer un ensemble de câbles dont les extrémités sont reliées aux dits contacts, le dit orifice ayant la forme d'un cylindre creux dont l'intersection géométrique avec le corps de la coquille est situé sur la surface supérieure de la dite coquille. De plus, un moyen écrou est prévu pour être vissé autour du dit cylindre creux fileté à cet effet, à des fins de serrage du dit ensemble de câbles et de verrouillage des deux demi-coquilles constitutives.According to the known technique, such a connector is constituted by two parts articulated at their front part forming a shell and including a series of contacts arranged on a base surrounded by a metal shield. The two half-shells are joined together at the upper part and at the rear part by assembly means and, once assembled, have an orifice intended to allow a set of cables to pass, the ends of which are connected to the said contacts, the so-called orifice having the shape of a hollow cylinder whose geometric intersection with the body of the shell is located on the upper surface of said shell. In addition, a nut means is provided to be screwed around said hollow cylinder threaded for this purpose, for the purpose of tightening said set of cables and locking the two constituent half-shells.

Suivant l'invention,les moyens de fixation des deux demi-coquilles comprennent sur au moins une des deux demi-coquilles des moyens formant saillies agencés pour coopérer par coincement avec au moins une rainure complémentaire prévue sur l'autre demi-coquille, tandis que la pièce de serrage constituée par la partie cylindrique creuse comprend extérieurement deux secteurs filetés diamétralement opposés séparés par des parties lisses et un écrou constitué d'une partie cylindrique taraudée seulement sur deux secteurs diamétralement opposés et d'une partie conique, de telle sorte qu'il suffit de présenter en regard les parties lisses du dit écrou et les parties filetées de la dite pièce cylindrique de serrage pour qu'un mouvement de rotation d'environ 90° imprimé ensuite au dit écrou assure à la fois le verrouillage des deux demi-coquilles du côté opposé à l'articulation et le serrage requis du dit toron de câbles par emprise du dit taraudage sur le dit filetage. De plus, la forme donnée à la partie arrière de la coquille pourvue de la pièce de serrage et qui sera définie plus loin est conçue pour qu'il soit possible de diminuer le pas du connecteur et ainsi avec un minimum d'augmentation d'encombrement longitudinal de disposer en succession au moins deux connecteurs identiques.According to the invention, the means for fixing the two half-shells comprise, on at least one of the two half-shells, means forming projections arranged to cooperate by wedging with at least one complementary groove provided on the other half-shell, while the clamping piece constituted by the hollow cylindrical part externally comprises two diametrically opposed threaded sectors separated by parts smooth and a nut consisting of a cylindrical part threaded only on two diametrically opposite sectors and a conical part, so that it suffices to present opposite the smooth parts of said nut and the threaded parts of said cylindrical part tightening so that a rotational movement of about 90 ° then printed on said nut ensures both the locking of the two half-shells on the side opposite the joint and the required tightening of said strand of cables by grip of said tapping on said thread. In addition, the shape given to the rear part of the shell provided with the clamping part and which will be defined below is designed so that it is possible to reduce the pitch of the connector and thus with a minimum increase in size. longitudinal to have at least two identical connectors in succession.

L'invention sera mieux comprise à la lecture de la description suivante d'une forme de réalisation préférée du connecteur selon l'invention,donnée à titre d'exemple et faite en référence au dessin annexé, sur lequel :

  • la figure 1 est une vue perspective éclatée d'une partie du connecteur selon l'invention,
  • la figure 2 est une vue latérale schématique de deux connecteurs de l'art antérieur juxtaposés longitudinalement,
  • la figure 3 est une vue latérale identique de deux connecteurs selon l'invention juxtaposés longitudinalement, et
  • la figure 4 est une vue en coupe transversale d'une variante d'un détail du connecteur des figures 1 et 3.
The invention will be better understood on reading the following description of a preferred embodiment of the connector according to the invention, given by way of example and made with reference to the appended drawing, in which:
  • FIG. 1 is an exploded perspective view of part of the connector according to the invention,
  • FIG. 2 is a schematic side view of two connectors of the prior art juxtaposed longitudinally,
  • FIG. 3 is an identical side view of two connectors according to the invention juxtaposed longitudinally, and
  • FIG. 4 is a cross-sectional view of a variant of a detail of the connector of FIGS. 1 and 3.

Un connecteur du genre rappelé plus haut comprend de façon connue un socle plan supportant une série de 20 contacts (non représenté) du type défini par exemple par la Norme NZ C 92-250 concernant les connecteurs mâles destinés à relier des équipements de péritélévisionà un poste de télévision équipé d'un connecteur femelle correspondant approprié.A connector of the kind mentioned above comprises in a known manner a flat base supporting a series of 20 contacts (not shown) of the type defined for example by Standard NZ C 92-250 concerning male connectors intended to connect teams scarting devices to a television set fitted with an appropriate corresponding female connector.

Il comprend en outre un blindage métallique (non représenté) s'étendant autour du socle et des contacts mâles saillants supportés par le socle, et dont la forme et les dimensions sont également définies par la Norme mentionnée ci-dessus.It further comprises a metal shield (not shown) extending around the base and projecting male contacts supported by the base, and the shape and dimensions of which are also defined by the Standard mentioned above.

Sur la figure 1 est représenté l'ensemble connecteur constitué par la coquille 10 et l'écrou 50 destiné à enserrer, par fixation sur la coquille assemblée, un toron de câbles (également non représenté) après soudure ou sertissage de ceux-ci sur les dits contacts, lors de l'assemblage du connecteur. La coquille 10 comprend une demi-coquille 10a et une demi-coquille lOb, dont les formes et les dimensions respectives sont sensiblement symétriques par rapport à un plan vertical médian, sauf en ce qui concerne les aménagements de fixation décrits ci-après. Les deux demi-coquilles sont reliées entre elles par une partie rectiligne plus fine 12 venue de moulage, à la partie désignée ci-après "avant" des dites coquilles, et formant articulation. Chaque demi-coquille 10a, lOb comporte respectivement, s'étendant horizontalement dans la partie inférieure de celles-ci, deux rainures intérieures l4a,l6a et 14b, 16b (dont seules les rainures 14b et 16b sont visibles sur la figure), correspondant sur la surface extérieure des demi-coquilles, respectivement à des bossages rectilignes horizontaux 18a, 20a (visibles sur la figure) et 18b, 20b (non visibles sur la figure); Ces rainures sont prévues pour maintenir en place le socle et le blindage lors de l'assemblage des deux demi-coquilles entre elles, par pivotement autour de l'articulation 12.FIG. 1 shows the connector assembly constituted by the shell 10 and the nut 50 intended to grip, by fixing to the assembled shell, a strand of cables (also not shown) after soldering or crimping them on the so-called contacts, when assembling the connector. The shell 10 comprises a half-shell 10a and a half-shell 10b, the respective shapes and dimensions of which are substantially symmetrical with respect to a vertical median plane, except as regards the fixing arrangements described below. The two half-shells are connected to each other by a finer rectilinear part 12 coming from molding, to the part designated below "before" of said shells, and forming a joint. Each half-shell 10a, lOb comprises respectively, extending horizontally in the lower part thereof, two internal grooves l4a, l6a and 14b, 16b (of which only the grooves 14b and 16b are visible in the figure), corresponding to the outer surface of the half-shells, respectively to horizontal rectilinear bosses 18a, 20a (visible in the figure) and 18b, 20b (not visible in the figure); These grooves are provided to hold the base and the shield in place when the two half-shells are assembled together, by pivoting around the articulation 12.

La demi-coquille 10a dans cet exemple comporte sur son rebord arrière, opposé au rebord avant associé à l'articulation 12, deux saillies 22,24 formant cliquets de fixation, prévus pour être engagés dans une rainure 26 située sur un prolongement 28 de l'extrémité arrière de la demi-coquille lOb. De même, la demi-coquille 10a comporte, sur son rebord supérieur en regard du rebord supérieur correspondant de la demi-coquille lOb lors de l'assemblage, deux saillies identiques 30,32 formant cliquets, prévus pour pénétrer dans une rainure 34 située dans un prolongement 36 du rebord supérieur de la demi-coquille lOb. Une fois que les extrémités des câbles ont été soudées ou serties aux contacts portés par le socle, le dit socle et son blindage sont mis en place de telle sorte que les deux demi-coquilles, après pivotement sur l'articulation 12, viennent les bloquer par les dites rainures, l'assemblage des deux demi-coquilles étant réalisé par le coincement des cliquets 22, 24, 30, 32 avec leurs rainures respectives 26, 34 grâce à l'élasticité du matériau constitutif, les prolongements correspondants 28, 36 venant simultanément en surplomb des faces correspondantes de la demi-coquille opposée. Ainsi est réalisé un maintien en place efficace des deux demi-coquilles ensemble, les rebords de jonction de celles-ci étant protégés par les dits prolongements.The half-shell 10a in this example comprises on its rear edge, opposite the front edge associated with the joint 12, two projections 22, 24 forming pawls for fixing, provided for be engaged in a groove 26 located on an extension 28 of the rear end of the half-shell lOb. Likewise, the half-shell 10a comprises, on its upper rim opposite the corresponding upper rim of the half-shell 10b during assembly, two identical projections 30, 32 forming pawls, intended to penetrate into a groove 34 located in an extension 36 of the upper edge of the half-shell 10b. Once the ends of the cables have been soldered or crimped to the contacts carried by the base, the said base and its shielding are put in place so that the two half-shells, after pivoting on the joint 12, come to block them by said grooves, the assembly of the two half-shells being achieved by the jamming of the pawls 22, 24, 30, 32 with their respective grooves 26, 34 thanks to the elasticity of the constituent material, the corresponding extensions 28, 36 coming simultaneously overhanging the corresponding faces of the opposite half-shell. Thus is achieved an effective retention in place of the two half-shells together, the junction edges thereof being protected by said extensions.

En outre, chacune des parties arrière des demi-coquilles 10a, lOb formant après assemblage la coquille 10, comprend de bas en haut une partie 37 perpendiculaire à sa base respectivement pourvue des cliquets d'accrochage 22, 24 pour la demi-coquille 10a et de la rainure 26 pour la demi-coquille lOb, une partie 38 parallèle à la base formant retrait et un plan incliné 39 dans lequel est prévu un orifice délimité par une moitié de cylindre creux formant après assemblage des deux demi-coquilles la pièce cylindrique creuse 40. Le cylindre creux 40 est pourvu des secteurs filetés 42a,42b couvrant chacun un angle de 90 à 95°, séparés par des secteurs lisses non filetés.In addition, each of the rear parts of the half-shells 10a, lOb forming, after assembly, the shell 10, comprises from below upwards a part 37 perpendicular to its base respectively provided with latching pawls 22, 24 for the half-shell 10a and of the groove 26 for the half-shell lOb, a part 38 parallel to the base forming a withdrawal and an inclined plane 39 in which is provided an orifice delimited by a half of hollow cylinder forming after assembly of the two half-shells the hollow cylindrical part 40. The hollow cylinder 40 is provided with threaded sectors 42a, 42b each covering an angle of 90 to 95 °, separated by smooth non-threaded sectors.

Quatre languettes 44a, 44b, 46a, 46b sont réparties régulière- rement sur le pourtour de l'orifice et s'étendent dans une direction axiale. Elles sont pourvues chacune à leur extrémité distante du dit pourtour d'un bossage sphérique 48 et se terminent par une arête vive 49 dont le rôle est explicité plus bas.Four tabs 44a, 44b, 46a, 46b are distributed regularly around the periphery of the orifice and extend in a axial direction. They are each provided at their end remote from the said periphery with a spherical boss 48 and end with a sharp edge 49 whose role is explained below.

L'ensemble est complété par un écrou 50 comportant une partie cylindrique 52 dont l'intérieur est taraudé de façon à correspondre aux secteurs filetés 42a, 42b du cylindre 40,surmontée d'une partie conique se rétrécissant vers le haut 54, dont l'intérieur est lisse.The assembly is completed by a nut 50 comprising a cylindrical part 52, the inside of which is tapped so as to correspond to the threaded sectors 42a, 42b of the cylinder 40, surmounted by a conical part narrowing upwards 54, the interior is smooth.

L'enserrage du toron de câbles est réalisé de la manière suivante. Après que les extrémités des différents câbles ont été fixées sur leurs contacts respectifs, que les deux demi-coquilles ont été réunies par pivotement autour de leur point d'articulation 12 de manière à enserrer le socle dans les rainures 14a, 16a, 14b, 16b, et le toron de câbles dans l'orifice cylindrique 40, l'écrou 50 ayant été préalablement enfilé sur le dit toron avant sertissage ou soudage des câbles, on amène l'écrou contre le cylindre 40 délimitant l'orifice, jusqu'à ce que les quatre bossages 48 soient fermement poussés afin que les quatre languettes qui les portent enserrent le toron, grâce à la partie conique 54 de l'écrou, tandis que les arêtes vives 49 mordent dans le toron de manière à améliorer son maintien en place. Il faut noter que cela est rendu possible en décalant d'environ 90° en rotation l'écrou et le cylindre, de façon que leurs filets respectifs ne soient pas en prise, mais soient en regard des parties lisses intermédiaires. Alors, en imprimant à l'écrou une rotation d'environ 90° par rapport au cylindre, les filets de l'écrou et du cylindre entrent en prise et le blocage de l'écrou en position est ainsi réalisé déterminant l'enserrage du toron de façon tout à fait satisfaisante et le verrouillage effectif des deux coquilles. Une butée 47 permet de limiter l'amplitude de rotation de l'écrou. En référence à la figure 4 est décrite ci-dessous une variante de réalisation de l'ensemble écrou-cylindre, grâce à laquelle un serrage efficace de ces deux organes est assuré même si les dimensions transversales du toron de câbles sont sensiblement inférieures à la section transversale de l'intérieur du cylindre.The cable strand is clamped as follows. After the ends of the different cables have been fixed on their respective contacts, the two half-shells have been joined by pivoting around their articulation point 12 so as to enclose the base in the grooves 14a, 16a, 14b, 16b , and the strand of cables in the cylindrical orifice 40, the nut 50 having been previously threaded onto the said strand before crimping or welding the cables, the nut is brought against the cylinder 40 delimiting the orifice, until that the four bosses 48 are firmly pushed so that the four tabs which carry them grip the strand, thanks to the conical part 54 of the nut, while the sharp edges 49 bite into the strand so as to improve its retention in place. It should be noted that this is made possible by shifting the nut and the cylinder by approximately 90 ° in rotation, so that their respective threads are not in engagement, but are opposite the smooth intermediate parts. Then, by giving the nut a rotation of approximately 90 ° relative to the cylinder, the threads of the nut and of the cylinder engage and the locking of the nut in position is thus achieved determining the tightening of the strand completely satisfactory and the effective locking of the two shells. A stop 47 makes it possible to limit the amplitude of rotation of the nut. With reference to FIG. 4, an alternative embodiment of the nut-cylinder assembly is described below, thanks to which effective tightening of these two members is ensured even if the transverse dimensions of the cable strand are substantially less than the cross section. inside the cylinder.

En référence à la figure 4,un cylindre de passage modifié 140 constitué lors de l'assemblage des deux demi-coquilles 10a, 10b décrites plus haut est agencé pour coopérer avec un écrou 50 tel que décrit en référence à la figure 1. Le cylindre 140 de passage du toron de câbles (non représenté) comprend deux secteurs filetés 142a, 142b comprenant chacun,à leur extrémité c8té sens des aiguilles d'une montre, des butées 147 permettant lors du vissage par quart de tour de l'écrou sur le cylindre 140, d'immobiliser ces deux parties l'une par rapport à l'autre. Comme le montre la figure, le diamètre à fond de filet des filets 142a, 142b du cylindre 140 augmente dans le sens du vissage jusqu'à la butée 147. Ainsi, lorsque l'écrou est vissé par quart de tour sur les filets 142a,142b, celui-ci rencontre une résistance croissante et se déforme élastiquement. A la fin du vissage, interrompu par la butée 147, la déformation élastique de l'écrou et du cylindre, qui sont avantageusement constitués d'une matière plastique de souplesse appropriée,est suffisante pour bloquer l'écrou et le cylindre l'un par rapport à l'autre, de façon à interdire tout désserrage, sans pour autant que les deux pièces soient définitivement immobilisées,un couple adéquat exercé sur l'écrou permettant encore le desserrage de celui-ci. Ainsi est interdit tout desserrage accidentel de l'écrou, qui diminuerait sensiblement la résistance mécanique globale du connecteur et de son toron de câbles. Bien entendu,l'homme de l'Art sait définir le module d'élasticité du matériau et le degré d'accroissement du diamètre à fond de filet de manière que le vissage reste possible sur tout un quart de tour, et que le blocage en fin de vissage, par déformation élastique engendrant des frottements entre les filets respectifs du cylindre et de l'écrou, soit effectif.Referring to Figure 4, a modified passage cylinder 140 formed during the assembly of the two half-shells 10a, 10b described above is arranged to cooperate with a nut 50 as described with reference to Figure 1. The cylinder 140 for the passage of the cable strand (not shown) comprises two threaded sectors 142a, 142b each comprising, at their end clockwise, stops 147 allowing the nut to be screwed by quarter turn on the cylinder 140, to immobilize these two parts relative to each other. As shown in the figure, the diameter at the bottom of the thread of the threads 142a, 142b of the cylinder 140 increases in the direction of screwing up to the stop 147. Thus, when the nut is screwed by quarter turn on the threads 142a, 142b, it encounters increasing resistance and elastically deforms. At the end of the screwing, interrupted by the stop 147, the elastic deformation of the nut and of the cylinder, which advantageously consist of a plastic material of suitable flexibility, is sufficient to lock the nut and the cylinder one by relative to the other, so as to prevent any loosening, without the two parts being definitively immobilized, an adequate torque exerted on the nut still allowing it to be loosened. This prevents any accidental loosening of the nut, which would significantly reduce the overall mechanical resistance of the connector and its cable strand. Of course, those skilled in the art know how to define the modulus of elasticity of the material and the degree of increase in the diameter at the bottom of the thread so that the screwing remains possible over an entire quarter turn, and that the blocking in end of screwing, by elastic deformation generating friction between the respective threads of the cylinder and the nut, is effective.

Les figures 2 et 3 illustrent la façon dont l'invention permet de réduire sensiblement le pas du connecteur et par suite son encombrement longitudinal.Figures 2 and 3 illustrate how the invention can significantly reduce the pitch of the connector and therefore its longitudinal size.

On voit sur la figure 2 que l'écrou du connecteur de l'art antérieur fait nettement saillie à l'extérieur de la coquille, ce qui ne permet d'installer un autre connecteur sur une autre embase qu'à une distance désignée en A sur le dessin, de l'ordre de 67 mm,dans le cas où l'embase située à droite sur la figure est surélevée d'une distance B (hauteur du blindage) par rapport à celle de gauche.We see in Figure 2 that the connector nut of the prior art protrudes clearly outside the shell, which allows to install another connector on another base at a distance designated at A in the drawing, of the order of 67 mm, in the case where the base located on the right in the figure is raised by a distance B (height of the shielding) relative to that on the left.

Grâce au connecteur selon la présente invention dans lequel , comme on le voit bien sur les figures 1 et 3, la partie 39 est substantiellement décalée vers l'intérieur par rapport à la face arrière du connecteur, ce qui diminue le dépassement de l'écrou à l'arrière, on peut disposer longitudinalement deux connecteurs de façon qu'ils soient séparés d'une distance A' de l'ordre de 56 mm., la surélévation de l'embase de droite par rapport à celle de gauche étant toujours d'une distance B (hauteur du blindage). Cela est particulièrement avantageux lorsque de nombreux connecteurs du type décrit sont à enficher dans leurs embases sur une surface réduite.Thanks to the connector according to the present invention in which, as can be seen in FIGS. 1 and 3, the part 39 is substantially offset inwards relative to the rear face of the connector, which reduces the overshoot of the nut at the rear, two connectors can be arranged longitudinally so that they are separated by a distance A 'of the order of 56 mm., the elevation of the right-hand base relative to that of the left being always d 'a distance B (height of the shield). This is particularly advantageous when many connectors of the type described are to be plugged into their sockets on a reduced surface.

Il est à noter que le connecteur suivant l'invention peut être utilisé avec les mêmes embases femelles que celles qui sont actuellement utilisées avec le connecteur de l'art antérieur rappelé ci-dessus.It should be noted that the connector according to the invention can be used with the same female bases as those which are currently used with the connector of the prior art recalled above.

Bien entendu, la présente invention n'est pas limitée à la description ci-dessus,elle inclut également toutes modifications que pourra y apporter l'Homme de l'Art dans le cadre de ses connaissances normales. En particulier,les matériaux constituant les divers composants de l'assemblage pourront être quelconques. La coquille pourra par exemple être en polypropylène. Dans un autre ordre d'idée une crémaillère pourra être substituée aux parties filetées décrites à titre d'exemple. En outre,l'invention s'applique également aux connecteurs femelle,par exemple pour des cordons prolongateurs.Of course, the present invention is not limited to the above description, it also includes any modifications that may be made by those skilled in the art within the framework of their normal knowledge. In particular, the materials constituting the various components of the assembly may be any. The shell could for example be made of polypropylene. In another vein, a rack can be substituted for the threaded parts described by way of example. In addition, the invention also applies to female connectors, for example for extension cords.

Claims (4)

1. Connecteur multibroches destiné à assurer l'interconnexion entre des équipements de péritélévision et un récepteur de télévision, du genre comprenant deux pièces sensiblement symétriques articulées à leur partie antérieure, formant coquille et incluant une série de contacts agencés sur un socle entouré d'un blindage métallique , - des moyens d'accrochage des dites demi-coquilles en position fermée pour l'utilisation, - une partie formant pièce de serrage assurant le serrage du toron formé par les fils à relier aux dits contacts et en coopération avec un écrou de verrouillage des demi-coquilles, caractérisé en ce que la partie arrière de la coquille (10) formée par l'assemblage des demi-coquilles (IOa, lOb) située à l'opposé de l'articulation (12) des dites demi-coquilles et qui comprend la pièce de serrage (40) est constituée de bas en haut, par une partie (37) perpendiculaire à la base de la coquille et pourvue des moyens d'accrochage respectivement prévus sur chacune des demi-coquilles, d'une partie (38) parallèle à la dite base formant ainsi retrait, et d'un plan incliné (39) sur lequel est prévue la dite pièce de serrage (40), de telle sorte qu'en raison de la réduction d'encombrement longitudinal résultant de la dite pantie parallèle à la dite base et par suite de la diminution du pas qui en découle, il soit possible avec un minimum d'augmentation d'encombrement longitudinal de disposer en succession au moins deux connecteurs identiques.1. Multi-pin connector intended to ensure the interconnection between scart equipment and a television receiver, of the type comprising two substantially symmetrical parts articulated at their front part, forming a shell and including a series of contacts arranged on a base surrounded by a metal shield, - means for attaching said half-shells in the closed position for use, - a part forming a clamping piece ensuring the tightening of the strand formed by the wires to be connected to said contacts and in cooperation with a nut locking the half-shells, characterized in that the rear part of the shell (10) formed by the assembly of the half-shells (IOa, lOb) situated opposite the articulation (12) of the said half-shells and which comprises the clamping piece (40) is constituted from bottom to top, by a part (37) perpendicular to the base of the shell and provided with hooking means respectively provided on each of the half-shells illes, a part (38) parallel to said base thus forming a withdrawal, and an inclined plane (39) on which is provided said clamping part (40), so that due to the reduction longitudinal congestion resulting from said panty parallel to said base and as a result of the reduction in pitch which follows, it is possible with a minimum increase in longitudinal congestion to have in succession at least two identical connectors. 2. Connecteur selon la revendication 1, caractérisé en ce que les moyens d'accrochage assurant l'assemblage des deux demi-coquilles en position fermée sont constitués par des saillies formant cliquets (22, 24, et 30, 32) disposés sur l'une des demi-coquilles (10a) pénétrant dans des rainures(respectivement 26 et 34) pratiquées à cet effet dans l'autre demi-coquille (lOb), les dites saillies et rainures étant situées d'une part sur la partiearrière de la coquille, d'autre part sur la partie supérieure, c'est-à-dire opposée à la base, les blocage et déblocage des dits moyens d'accrochage étant rendus possibles par l'élasticité relative du matériau constitutif.2. Connector according to claim 1, characterized in that the hooking means ensuring the assembly of the two half-shells in the closed position are constituted by projections forming pawls (22, 24, and 30, 32) arranged on the one of the half-shells (10a) penetrating into grooves (respectively 26 and 34) made for this purpose in the other half-shell (10b), the said projections and grooves being located on the one hand on the rear part of the shell , on the other hand on the upper part, that is to say opposite the base, blocking and release of said attachment means being made possible by the relative elasticity of the constituent material. 3. Connecteur selon la revendication 1, caractérisé en ce que la pièce de serrage est constituée par une partie cylindrique creuse (40) pourvue de languettes élastiques (44a,44b, 46a, 46b) s'étendant dans une direction axiale et elles-mêmes pourvues d'un bossage sphérique (48), la dite pièce comprenant extérieurement deux secteurs filetés diamétralement opposés (42a, 42b) séparés par deux parties lisses, tandis qu'un écrou (50) prévu pour assurer le verrouillage des deux demi-coquilles du c8té opposé à l'articulation ainsi que le blocage du toron de câbles est constitué d'une partie cylindrique tara dée seulement sur deux secteurs diamétralement opposés et par une partie conique,de telle sorte qu'il suffit de présenter en regard les parties lisses du dit écrou (50) et les parties filetées 42a, 42b de la dite pièce de serrage (40) pour qu'un mouvement de rotation d'environ 90° imprimé ensuite au dit écrou assure à la fois le verrouillage des deux demi-coquilles du c8té opposé à l'articulation et le serrage requis du dit toron, par emprise du dit taraudage sur le dit filetage, une butée (47) étant prévue sur la dite pièce de serrage (40) pour limiter l'amplitude de la dite rotation.3. Connector according to claim 1, characterized in that the clamping piece is constituted by a hollow cylindrical part (40) provided with elastic tongues (44a, 44b, 46a, 46b) extending in an axial direction and themselves provided with a spherical boss (48), said part comprising externally two diametrically opposite threaded sectors (42a, 42b) separated by two smooth parts, while a nut (50) provided for locking the two half-shells of the side opposite to the joint as well as the blocking of the cable strand consists of a cylindrical part tared only on two diametrically opposite sectors and by a conical part, so that it suffices to present the smooth parts of the said nut (50) and the threaded parts 42a, 42b of said clamping piece (40) so that a rotational movement of approximately 90 ° then printed on said nut ensures both the locking of the two half-shells of the opposite side of the article lation and the required tightening of said strand, by grip of said tapping on said thread, a stop (47) being provided on said clamping piece (40) to limit the amplitude of said rotation. 4. Connecteur selon la revendication 3, caractérisé par le fait que, soit les secteurs filetés (142a, 142b) de la partie cylindrique (140), soit les parties taraudées de l'écrou (50) présentent un diamètre à fond de filet qui augmente dans le sens du vissage.4. Connector according to claim 3, characterized in that either the threaded sectors (142a, 142b) of the cylindrical part (140), or the threaded parts of the nut (50) have a diameter at the bottom of the thread which increases in the direction of screwing.
EP84401578A 1983-01-24 1984-07-26 Scart plug Withdrawn EP0175033A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8301016A FR2539923B1 (en) 1983-01-24 1983-01-24 MALE CONNECTOR FOR PERITELEVISION
EP84401578A EP0175033A1 (en) 1983-01-24 1984-07-26 Scart plug

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8301016A FR2539923B1 (en) 1983-01-24 1983-01-24 MALE CONNECTOR FOR PERITELEVISION
FR8320518A FR2557379B2 (en) 1983-01-24 1983-12-21 MALE CONNECTOR FOR PERITELEVISION
EP84401578A EP0175033A1 (en) 1983-01-24 1984-07-26 Scart plug

Publications (1)

Publication Number Publication Date
EP0175033A1 true EP0175033A1 (en) 1986-03-26

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ID=27227386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401578A Withdrawn EP0175033A1 (en) 1983-01-24 1984-07-26 Scart plug

Country Status (2)

Country Link
EP (1) EP0175033A1 (en)
FR (1) FR2539923B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248966A1 (en) * 1986-06-12 1987-12-16 Societe Francaise Metallo (Sa) Articulated housing of plugs of peripheral-TV connectors
EP0379653A2 (en) * 1989-01-26 1990-08-01 Grote &amp; Hartmann GmbH &amp; Co. KG Round connector case for electrical connector contacts
FR2726131A1 (en) * 1994-10-20 1996-04-26 Seder Groupe Connecting plug for multiple cables transmitting information such as video signals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570553B1 (en) * 1984-09-20 1986-09-19 Sandvale Sarl Ateliers DEVICE FOR SECURING A CABLE TO A PLUG
FR2662546B1 (en) * 1990-05-23 1992-09-11 Seder CONNECTION SHEET FOR MULTI-CONDUCTOR CABLES FOR TRANSMITTING INFORMATION AND MACHINE FOR ASSEMBLY THEREOF.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861778A (en) * 1974-05-22 1975-01-21 Sola Basic Ind Inc Electrical connector with strain relief
GB1497560A (en) * 1975-09-11 1978-01-12 Amp Inc Electrical connector assemblies
FR2402948A1 (en) * 1977-09-07 1979-04-06 Matra Demountable connector cover for e.g. telephone exchange panels - is rectangular and in two basic parts allowing access for wiring

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861778A (en) * 1974-05-22 1975-01-21 Sola Basic Ind Inc Electrical connector with strain relief
GB1497560A (en) * 1975-09-11 1978-01-12 Amp Inc Electrical connector assemblies
FR2402948A1 (en) * 1977-09-07 1979-04-06 Matra Demountable connector cover for e.g. telephone exchange panels - is rectangular and in two basic parts allowing access for wiring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248966A1 (en) * 1986-06-12 1987-12-16 Societe Francaise Metallo (Sa) Articulated housing of plugs of peripheral-TV connectors
EP0379653A2 (en) * 1989-01-26 1990-08-01 Grote &amp; Hartmann GmbH &amp; Co. KG Round connector case for electrical connector contacts
EP0379653A3 (en) * 1989-01-26 1990-10-31 Grote &amp; Hartmann GmbH &amp; Co. KG Round connector case for electrical connector contacts
FR2726131A1 (en) * 1994-10-20 1996-04-26 Seder Groupe Connecting plug for multiple cables transmitting information such as video signals

Also Published As

Publication number Publication date
FR2539923A1 (en) 1984-07-27
FR2539923B1 (en) 1986-02-21

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