EP0381582A1 - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
EP0381582A1
EP0381582A1 EP90400262A EP90400262A EP0381582A1 EP 0381582 A1 EP0381582 A1 EP 0381582A1 EP 90400262 A EP90400262 A EP 90400262A EP 90400262 A EP90400262 A EP 90400262A EP 0381582 A1 EP0381582 A1 EP 0381582A1
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EP
European Patent Office
Prior art keywords
wheel
lock
plug
connector according
rotation
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.)
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Application number
EP90400262A
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German (de)
French (fr)
Inventor
Pierre Drogo
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Individual
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Individual
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Publication date
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Publication of EP0381582A1 publication Critical patent/EP0381582A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing

Definitions

  • the present invention relates to an electrical connector for connecting electrical cables.
  • Such a connector finds application in particular to the conveyance of rapid information signals as is the case for example for command and control devices used in aircraft.
  • An electrical connector is known of the type comprising a base, a plug and a latch mounted on the plug body to secure the plug to the base by screwing.
  • Connecting means between the plug body and the latch are provided to brake the rotation in one direction and in the other of the latch relative to the plug body.
  • These connecting means are particularly intended to prevent the loosening of the lock of the base body during external vibrations transmitted to the electrical connector.
  • the connecting means are constituted by grooves arranged on the circumference of an annular portion of the plug body extending parallel to the longitudinal axis of this body and by a number of elastic metal blades fixed angularly equidistant from an internal cylindrical wall of the lock and each comprising a boss snapping into the spaces between adjacent grooves.
  • the present invention aims to eliminate the above drawbacks by proposing an electrical connector of the type comprising a base, a plug, a latch mounted on the plug body to secure the plug to the base by screwing and means of connection between the plug body and the latch braking the rotation in both directions of the latch relative to the plug body and characterized in that the connecting means are arranged so as to brake the rotation of the latch in the direction of unscrewing it ci following a force greater than the braking force of the lock in the direction of screwing of the latter.
  • connection means comprise first and second coaxial wheels, the side faces of which face each other have teeth, each with flanks in gentle and steep slopes respectively, held in mesh with each other by the return force of an elastic member, the second wheel being integral with the body of the lock while the first wheel is immobilized in rotation relative to the plug body and can move axially relative to the latter against the force of return of the elastic member, so that the rotation of the bolt in the direction of screwing causes the flanks with a gentle slope of the teeth of the second wheel to slide over the flanks with gentle slope corresponding to the teeth of the first wheel and the rotation of the bolt in the unscrewing direction brings the steep sides of the teeth of the second wheel into abutment against the corresponding steep sides of the teeth of the first wheel.
  • the plug body comprises at least one lug integral with the latter engaged in an internal groove of conjugate shape of the first wheel.
  • two diametrically opposite lugs are secured to the plug body and respectively engaged in two internal grooves of the first wheel.
  • the second wheel is secured to the body of the lock by screwing it into the body of the lock.
  • the elastic return member consists of a corrugated ring interposed between the lateral face of the first wheel opposite its toothed face and an internal annular wall of the lock.
  • the plug body comprises a flange bearing against the lateral face of the internal annular wall opposite to that serving as a support for the elastic return member.
  • the internal annular wall of the lock comprises two grooves for the passage of the two lugs respectively between the first wheel and the annular wall, the two lugs then being respectively housed in the two grooves of the first wheel by rotation of the plug body relative to the lock.
  • the lock comprises an internal thread made on the side of the lateral face of the internal annular wall of the lock on which the flange is supported and cooperating with an external thread of the body of the base.
  • the two toothed wheels are made of hard steel.
  • the electrical connector comprises a base 1 intended to be fixed to an appropriate fixed support, a plug 2 and a latch 3 mounted on the body 4 of the plug 2 to secure the latter to the base 1.
  • the body 5 of the latch 3 is in the form of a sleeve having an internal thread 6 machined on a determined inlet portion of the internal cylindrical wall of the sleeve.
  • the sleeve 5 also comprises an internal annular wall 7 separated from the internal thread 6 and comprising two diametrically opposite grooves 8 passing through the wall 7.
  • An internal thread 9 is also machined on an outlet portion of the internal cylindrical wall of the sleeve 5 and defines with the annular wall 7 an annular housing cavity 10.
  • the sleeve 5 comprises on its outer periphery a number of sectors in relief ridged 11 angularly and regularly spaced from each other other and intended to facilitate manual operation of the lock 3 during the screwing or unscrewing operations thereof. These striated sectors 11 define between them spaces 12 allowing a claw wrench to tighten the lock 3 energetically to the base 1 or to loosen it.
  • the body 13 of the base 1 comprises a fixing plate 14, a tubular portion 15 integral with one face of the plate 14 and a tubular endpiece 16 integral with the opposite face of the plate 14 and arranged coaxially with the tubular portion 15 so as to define together an internal cylinder passage.
  • the portion 15 comprises an external thread 17 similar to the internal thread 6 of the lock 3 while the end piece 16 also includes an external thread 18 intended to cooperate with a threaded ring (not shown) for fixing a connection cable electric at the nozzle 16.
  • the plug 2 has its generally cylindrical body 4 in which is fixed an insert 20 of an electrically insulating material comprising channels 21 inside which are housed male or female pins (not shown) of the connector.
  • the body 4 comprises a flange 22 located near the transverse median plane of the body.
  • the cylinder portion of the body 4 to left of the flange 22 comprises from right to left two diametrically opposite lugs 24 and an external thread 25 whose nominal diameter is less than the diameter of the opening defined by the annular wall 7.
  • the thread 25 cooperates with a fixing ring (not shown ) an electrical connection cable to the plug body 4.
  • the body 4 of the plug and the body 5 of the lock 3 are interconnected by connecting means which are arranged so as to slow the rotation of the lock 3 relative to the plug 2 in the direction of unscrewing with a force greater than the braking force of the lock 3 in the direction of screwing of the latter.
  • These connecting means comprise a first crown-shaped wheel 26 having an outer diameter less than the diameter of the annular cavity 10, an elastic member 27, constituted in this case by a corrugated metal washer with an outer diameter less than the diameter of the cavity 10, and intended to exert a restoring force on the wheel 26 against an annular lateral face of a second wheel in the form of a crown 28 with external thread 29 intended to cooperate with the internal thread 9 in the same way.
  • the wheel 26 and the member 27 are thus housed in the cavity 10.
  • the elastic member 27 is interposed between the annular wall 7 and a corresponding side face of the wheel 26, the opposite side face of which comprises, cut therein. , teeth 26a meshing in identical teeth 28a cut in the lateral face opposite the second wheel 28.
  • the teeth 26a and 28a are cut so as to have flanks with a steep or steep slope respectively 26a1 and 28a1 and opposite sides with gentle slopes respectively 26a2 and 28a2.
  • the first wheel 26 has two diametrically opposite through internal grooves 26b in which the two lugs 24 engage respectively. integral with the plug body 2.
  • the wheels 26 and 28 and the elastic member 27 are coaxial with the longitudinal axis of the body 13 of the base 1 and the flange 22 bears against the corresponding annular face of the wall 7 opposite to that retaining the elastic member 27.
  • the wheels 26, 28 and the elastic member 27 each have an internal diameter greater than the nominal diameter of the thread 25.
  • the assembly of the body 4 of the plug 2 to the body 5 of the bolt is carried out by introducing the body 4 axially into the bolt 3 so that the threaded part 25 passes through the annular wall 7, the elastic member 27 and the wheels 26, 28 and then engaging the two pins 24 respectively through the two grooves 8 of the wall 7 which are then in the portion of space left free by the elastic member 27 between the first wheel 26 and the wall 7.
  • the plug body 4 By turning the plug body 4 relative to the body 5 of the lock 3, the two lugs 24 are housed respectively in the two grooves 26b of the first wheel 26. Then, we screws the bolt 3 and the bolt 3 to the base 1 by the threads 9 and 17.
  • the rotation of the lock 3 in the opposite direction to the arrow F is accompanied by a rotation in the same direction of the wheel 28 relative to the wheel 26 but this rotation is stopped by the steep flanks of the teeth 28a of the wheel 28 abutting against the corresponding steep flanks of the teeth 26a of the wheel 26. Only a relatively large force applied to the wheel 28 allows the teeth 28a to jump over the teeth 26a and this against the return force of the elastic member 27. In this way, the lock 3 is blocked in the direction of unscrewing sufficiently effective to withstand the forces resulting from external vibrations tending to loosen the lock 3.

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

Abstract

The connector comprises connecting means (24, 26, 27, 28), between the plug (2) body (4) and the lock (3) of the connector, intended to retard the rotation of the lock (3) in the direction of unscrewing with a force greater than the retarding force of the lock in the direction of the screwing of the latter. …<??>The electrical connector finds application, especially, in the aeronautical field. …<IMAGE>…

Description

La présente invention concerne un connecteur électrique servant à la connexion de câbles électriques.The present invention relates to an electrical connector for connecting electrical cables.

Un tel connecteur trouve application notamment au véhiculage de signaux rapides d'informations comme c'est le cas par exemple pour les appareils de commande et de contrôle utilisés dans les avions.Such a connector finds application in particular to the conveyance of rapid information signals as is the case for example for command and control devices used in aircraft.

On connaît un connecteur électrique du type comprenant une embase, une fiche et un verrou monté sur le corps de fiche pour solidariser la fiche à l'embase par vissage. Des moyens de liaison entre le corps de fiche et le verrou sont prévus pour freiner la rotation dans un sens et dans l'autre du verrou relativement au corps de fiche. Ces moyens de liaison sont particulièrement destinés à empêcher le desserrage du verrou du corps de l'embase lors de vibrations externes transmises au connecteur électrique. Les moyens de liaison sont constitués par des cannelures disposées sur la circonférence d'une portion annulaire du corps de fiche en s'étendant parallèlement à l'axe longitudinal de ce corps et par un certain nombre de lames métalliques élastiques fixées de façon angulairement équidistantes à une paroi cylindrique interne du verrou et comportant chacune un bossage s'encliquetant dans les espaces entre cannelures adjacentes.An electrical connector is known of the type comprising a base, a plug and a latch mounted on the plug body to secure the plug to the base by screwing. Connecting means between the plug body and the latch are provided to brake the rotation in one direction and in the other of the latch relative to the plug body. These connecting means are particularly intended to prevent the loosening of the lock of the base body during external vibrations transmitted to the electrical connector. The connecting means are constituted by grooves arranged on the circumference of an annular portion of the plug body extending parallel to the longitudinal axis of this body and by a number of elastic metal blades fixed angularly equidistant from an internal cylindrical wall of the lock and each comprising a boss snapping into the spaces between adjacent grooves.

Cependant, de tels moyens de freinage offrent peu de résistance notamment au desserrage ou dévissage du verrou du corps de l'embase et sont donc pratiquement inefficaces.However, such braking means offer little resistance, in particular to loosening or unscrewing the lock of the body of the base and are therefore practically ineffective.

De plus, la fixation des lames du moyen de freinage au corps du verrou n'est pas commode, ce qui ne facilite pas non plus leur changement en cas de défectuosité.In addition, fixing the blades of the braking means to the body of the lock is not convenient, which also does not facilitate their change in the event of a defect.

La présente invention a pour but d'éliminer les inconvénients ci-dessus en proposant un connecteur électrique du type comprenant une embase, une fiche, un verrou monté sur le corps de fiche pour solidariser la fiche à l'embase par vissage et des moyens de liaison entre le corps de fiche et le verrou freinant la rotation dans les deux sens du verrou relativement au corps de fiche et caractérisé en ce que les moyens de liaison sont agencés de façon à freiner la rotation du verrou dans le sens du dévissage de celui-ci suivant un effort supérieur à l'effort de freinage du verrou dans le sens du vissage de ce dernier.The present invention aims to eliminate the above drawbacks by proposing an electrical connector of the type comprising a base, a plug, a latch mounted on the plug body to secure the plug to the base by screwing and means of connection between the plug body and the latch braking the rotation in both directions of the latch relative to the plug body and characterized in that the connecting means are arranged so as to brake the rotation of the latch in the direction of unscrewing it ci following a force greater than the braking force of the lock in the direction of screwing of the latter.

Selon une caractéristique de l'invention, les moyens de liaison comprennent des première et seconde roues coaxiales, dont les faces latérales se faisant face comportent des dents, chacune à flancs respectivement en pentes douce et abrupte, maintenues en engrènement les unes avec les autres par la force de rappel d'un organe élastique, la seconde roue étant solidaire du corps du verrou tandis que la première roue est immobilisée en rotation relativement au corps de fiche et peut se déplacer axialement relativement à celui-ci à l'encontre de la force de rappel de l'organe élastique, de sorte que la rotation du verrou dans le sens du vissage provoque le glissement des flancs à pente douce des dents de la seconde roue sur les flancs à pente douce correspondants des dents de la première roue et la rotation du verrou dans le sens du dévissage amène les flancs à pente abrupte des dents de la seconde roue en butée contre les flancs à pente abrupte correspondants des dents de la première roue.According to a characteristic of the invention, the connection means comprise first and second coaxial wheels, the side faces of which face each other have teeth, each with flanks in gentle and steep slopes respectively, held in mesh with each other by the return force of an elastic member, the second wheel being integral with the body of the lock while the first wheel is immobilized in rotation relative to the plug body and can move axially relative to the latter against the force of return of the elastic member, so that the rotation of the bolt in the direction of screwing causes the flanks with a gentle slope of the teeth of the second wheel to slide over the flanks with gentle slope corresponding to the teeth of the first wheel and the rotation of the bolt in the unscrewing direction brings the steep sides of the teeth of the second wheel into abutment against the corresponding steep sides of the teeth of the first wheel.

Selon une autre caractéristique de l'invention, le corps de fiche comprend au moins un ergot solidaire de celui-ci engagé dans une rainure interne de forme conjuguée de la première roue.According to another characteristic of the invention, the plug body comprises at least one lug integral with the latter engaged in an internal groove of conjugate shape of the first wheel.

Selon encore une autre caractéristique de l'invention deux ergots diamètralement opposés sont solidarisés au corps de fiche et engagés respectivement dans deux rainures internes conjuguées de la première roue.According to yet another characteristic of the invention, two diametrically opposite lugs are secured to the plug body and respectively engaged in two internal grooves of the first wheel.

Avantageusement, la seconde roue est solidarisée au corps du verrou par vissage de celle-ci dans le corps du verrou.Advantageously, the second wheel is secured to the body of the lock by screwing it into the body of the lock.

De préférence, l'organe élastique de rappel est constitué par un anneau ondulé interposé entre la face latérale de la première roue opposée à sa face dentée et une paroi annulaire interne du verrou.Preferably, the elastic return member consists of a corrugated ring interposed between the lateral face of the first wheel opposite its toothed face and an internal annular wall of the lock.

Selon toujours une autre caractéristique, le corps de fiche comprend une collerette en appui contre la face latérale de la paroi annulaire interne opposée à celle servant d'appui à l'organe élastique de rappel.According to still another characteristic, the plug body comprises a flange bearing against the lateral face of the internal annular wall opposite to that serving as a support for the elastic return member.

Pour l'assemblage du verrou au corps de fiche, la paroi annulaire interne du verrou comprend deux rainures de passage respectivement des deux ergots entre la première roue et la paroi annulaire, les deux ergots étant ensuite logés respectivement dans les deux rainures de la première roue par rotation du corps de fiche relativement au verrou.For the assembly of the lock to the plug body, the internal annular wall of the lock comprises two grooves for the passage of the two lugs respectively between the first wheel and the annular wall, the two lugs then being respectively housed in the two grooves of the first wheel by rotation of the plug body relative to the lock.

Le verrou comprend un filetage intérieur réalisé du côté de la face latérale de la paroi annulaire interne du verrou sur laquelle est en appui la collerette et coopérant avec un filetage extérieur du corps de l'embase.The lock comprises an internal thread made on the side of the lateral face of the internal annular wall of the lock on which the flange is supported and cooperating with an external thread of the body of the base.

De préférence, les deux roues dentées sont en acier dur.Preferably, the two toothed wheels are made of hard steel.

L'invention sera mieux comprise, et d'autres buts, détails et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention, et dans lesquels :

  • La figure 1 est une vue éclatée du connecteur électrique conforme à l'invention.
  • Les figures 2A et 2B représentent respectivement deux portions des deux roues dentées utilisées dans le connecteur de l'invention, et
  • La figure 3 est une vue en coupe longitudinale du connecteur suivant la ligne III-III de la figure 1, en position assemblée.
The invention will be better understood, and other aims, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating an embodiment of the invention, and in which:
  • Figure 1 is an exploded view of the electrical connector according to the invention.
  • FIGS. 2A and 2B respectively represent two portions of the two toothed wheels used in the connector of the invention, and
  • Figure 3 is a longitudinal sectional view of the connector along the line III-III of Figure 1, in the assembled position.

En se reportant aux figures, le connecteur électrique comprend une embase 1 destinée à être fixée à un support fixe approprié, une fiche 2 et un verrou 3 monté sur le corps 4 de la fiche 2 pour solidariser celle-ci à l'embase 1.Referring to the figures, the electrical connector comprises a base 1 intended to be fixed to an appropriate fixed support, a plug 2 and a latch 3 mounted on the body 4 of the plug 2 to secure the latter to the base 1.

Le corps 5 du verrou 3 se présente sous la forme d'un manchon comportant un filetage intérieur 6 usiné sur une portion d'entrée déterminée de la paroi cylindrique interne du manchon. Le manchon 5 comprend également une paroi annulaire interne 7 séparée du filetage intérieur 6 et comportant deux rainures diamétralement opposées 8 traversant la paroi 7. Un filetage intérieur 9 est également usiné sur une portion de sortie de la paroi cylindrique interne du manchon 5 et définit avec la paroi annulaire 7 une cavité de logement annulaire 10. Le manchon 5 comprend sur sa périphérie extérieure un certain nombre de secteurs en relief striés 11 angulairement et régulièrement espacés les uns des autres et destinés à faciliter manuellement la manoeuvre du verrou 3 lors des opérations de vissage ou de dévissage de celui-ci. Ces secteurs striés 11 définissent entre eux des espaces 12 permettant à une clé à griffe de serrer énergiquement le verrou 3 à l'embase 1 ou de le desserrer de celle-ci.The body 5 of the latch 3 is in the form of a sleeve having an internal thread 6 machined on a determined inlet portion of the internal cylindrical wall of the sleeve. The sleeve 5 also comprises an internal annular wall 7 separated from the internal thread 6 and comprising two diametrically opposite grooves 8 passing through the wall 7. An internal thread 9 is also machined on an outlet portion of the internal cylindrical wall of the sleeve 5 and defines with the annular wall 7 an annular housing cavity 10. The sleeve 5 comprises on its outer periphery a number of sectors in relief ridged 11 angularly and regularly spaced from each other other and intended to facilitate manual operation of the lock 3 during the screwing or unscrewing operations thereof. These striated sectors 11 define between them spaces 12 allowing a claw wrench to tighten the lock 3 energetically to the base 1 or to loosen it.

Le corps 13 de l'embase 1 comprend une plaque de fixation 14, une portion tubulaire 15 solidaire d'une face de la plaque 14 et un embout tubulaire 16 solidaire de la face opposée de la plaque 14 et disposé coaxialement à la portion tubulaire 15 de façon à définir ensemble un passage cylindre interne. La portion 15 comprend un filetage extérieur 17 de même pas que le filetage intérieur 6 du verrou 3 tandis que l'embout 16 comporte également un filetage extérieur 18 destiné à coopérer avec une bague filetée (non représentée) de fixation d'un câble de raccordement électrique à l'embout 16.The body 13 of the base 1 comprises a fixing plate 14, a tubular portion 15 integral with one face of the plate 14 and a tubular endpiece 16 integral with the opposite face of the plate 14 and arranged coaxially with the tubular portion 15 so as to define together an internal cylinder passage. The portion 15 comprises an external thread 17 similar to the internal thread 6 of the lock 3 while the end piece 16 also includes an external thread 18 intended to cooperate with a threaded ring (not shown) for fixing a connection cable electric at the nozzle 16.

La fiche 2 a son corps 4 généralement cylindrique dans lequel est fixé un insert 20 en une matière électrique­ment isolante comportant des canaux 21 à l'intérieur desquels se logent des broches mâles ou femelles (non représentées) du connecteur. Le corps 4 comprend une collerette 22 située à proximité du plan médian transversal du corps. Sur la portion de cylindre située à droite de la collerette 22 au vu des figures 1 et 3, destinée à s'engager dans la portion tubulaire 15 de l'embase 1 et à l'extrémité de celle-ci, sont usinées un certain nombre de languettes 23 angulairement et régulièrement espacées. Ces languettes permettent un positionnement relatif du corps 4 de fiche à l'embase 1 en s'engageant respectivement dans des rainures (non représentées) situées dans la zone cylindrique de raccordement des portions tubulaires 15 et 16. La portion de cylindre du corps 4 à gauche de la collerette 22 comprend de la droite vers la gauche deux ergots diamétralement opposés 24 et un filetage extérieur 25 dont le diamètre nominal est inférieur au diamètre de l'ouverture définie par la paroi annulaire 7. Le filetage 25 coopère avec une bague de fixation (non représentée) d'un câble de raccordement électrique au corps 4 de fiche.The plug 2 has its generally cylindrical body 4 in which is fixed an insert 20 of an electrically insulating material comprising channels 21 inside which are housed male or female pins (not shown) of the connector. The body 4 comprises a flange 22 located near the transverse median plane of the body. On the cylinder portion located to the right of the flange 22 in view of Figures 1 and 3, intended to engage in the tubular portion 15 of the base 1 and at the end thereof, are machined a number tabs 23 angularly and regularly spaced. These tongues allow relative positioning of the body 4 of plug to the base 1 by engaging respectively in grooves (not shown) located in the cylindrical zone of connection of the tubular portions 15 and 16. The cylinder portion of the body 4 to left of the flange 22 comprises from right to left two diametrically opposite lugs 24 and an external thread 25 whose nominal diameter is less than the diameter of the opening defined by the annular wall 7. The thread 25 cooperates with a fixing ring (not shown ) an electrical connection cable to the plug body 4.

Le corps 4 de fiche et le corps 5 du verrou 3 sont reliés entre eux par des moyens de liaison qui sont agencés de façon à freiner la rotation du verrou 3 relativement à la fiche 2 dans le sens du dévissage suivant un effort supérieur à l'effort de freinage du verrou 3 dans le sens du vissage de ce dernier. Ces moyens de liaison comprennent une première roue en forme de couronne 26 ayant un diamètre extérieur inférieur au diamètre de la cavité annulaire 10, un organe élastique 27, constitué dans le cas présent par une rondelle métallique ondulée de diamètre extérieur inférieur au diamètre de la cavité 10, et destiné à exercer une force de rappel de la roue 26 contre une face latérale annulaire d'une deuxième roue en forme de couronne 28 à filetage extérieur 29 destiné à coopérer avec le filetage intérieur 9 de même pas. La roue 26 et l'organe 27 sont ainsi logés dans la cavité 10. L'organe élastique 27 est interposé entre la paroi annulaire 7 et une face latérale correspondante de la roue 26, dont la face latérale opposée comprend, taillées dans celle-ci, des dents 26a s'engrenant dans des dents identiques 28a taillées dans la face latérale en vis-à-vis de la seconde roue 28. Les dents 26a et 28a sont taillées de façon à comporter des flancs en pente abrupte ou raide respectivement 26a1 et 28a1 et des flancs opposés à pente douce respectivement 26a2 et 28a2. La première roue 26 comporte deux rainures internes traversantes diamétralement opposées 26b dans lesquelles s'engagent respectivement les deux ergots 24 solidaires du corps de fiche 2. Lorsque la seconde roue 28 est vissée et bloquée jusqu'au fond du filetage intérieur 9, les dents 26a et 28a respectivement des roues 26 et 28 sont maintenues en engrènement les unes avec les autres par la force élastique de l'organe 27. En position de montage, les roues 26 et 28 et l'organe élastique 27 sont coaxiaux à l'axe longitudinal du corps 13 de l'embase 1 et la collerette 22 est en appui contre la face annulaire correspondante de la paroi 7 opposée à celle retenant l'organe élastique 27. Bien entendu, pour permettre le passage de la partie filetée 25, les roues 26, 28 et l'organe élastique 27 ont chacun un diamètre interne supérieur au diamètre nominal du filetage 25.The body 4 of the plug and the body 5 of the lock 3 are interconnected by connecting means which are arranged so as to slow the rotation of the lock 3 relative to the plug 2 in the direction of unscrewing with a force greater than the braking force of the lock 3 in the direction of screwing of the latter. These connecting means comprise a first crown-shaped wheel 26 having an outer diameter less than the diameter of the annular cavity 10, an elastic member 27, constituted in this case by a corrugated metal washer with an outer diameter less than the diameter of the cavity 10, and intended to exert a restoring force on the wheel 26 against an annular lateral face of a second wheel in the form of a crown 28 with external thread 29 intended to cooperate with the internal thread 9 in the same way. The wheel 26 and the member 27 are thus housed in the cavity 10. The elastic member 27 is interposed between the annular wall 7 and a corresponding side face of the wheel 26, the opposite side face of which comprises, cut therein. , teeth 26a meshing in identical teeth 28a cut in the lateral face opposite the second wheel 28. The teeth 26a and 28a are cut so as to have flanks with a steep or steep slope respectively 26a1 and 28a1 and opposite sides with gentle slopes respectively 26a2 and 28a2. The first wheel 26 has two diametrically opposite through internal grooves 26b in which the two lugs 24 engage respectively. integral with the plug body 2. When the second wheel 28 is screwed and locked to the bottom of the internal thread 9, the teeth 26a and 28a of the wheels 26 and 28 respectively are held in mesh with each other by the elastic force of the member 27. In the mounting position, the wheels 26 and 28 and the elastic member 27 are coaxial with the longitudinal axis of the body 13 of the base 1 and the flange 22 bears against the corresponding annular face of the wall 7 opposite to that retaining the elastic member 27. Of course, to allow the passage of the threaded portion 25, the wheels 26, 28 and the elastic member 27 each have an internal diameter greater than the nominal diameter of the thread 25.

Avant de fixer la fiche 2 à l'embase 1 par le verrou 3, l'assemblage du corps 4 de la fiche 2 au corps 5 du verrou est effectué en introduisant le corps 4 axialement dans le verrou 3 de façon que la partie filetée 25 traverse la paroi annulaire 7, l'organe élastique 27 et les roues 26, 28 et en engageant ensuite les deux ergots 24 à travers respectivement les deux rainures 8 de la paroi 7 qui se trouvent alors dans la portion d'espace laissée libre par l'organe élastique 27 entre la première roue 26 et la paroi 7. En tournant le corps 4 de fiche relativement au corps 5 du verrou 3, les deux ergots 24 se logent respectivement dans les deux rainures 26b de la première roue 26. Puis, on visse par les filetages 9 et 17 le verrou 3 à l'embase 1. La rotation du verrou 3 dans le sens du vissage matérialisé par la flèche F entraîne en rotation dans le même sens la seconde roue 28 relativement à la première roue 26 qui est immobilisée en rotation relativement au corps 4 de fiche par les deux ergots 24. Ainsi, les flancs en pente douce 28a2 des dents 28a de la roue 28 glissent sur les flancs correspondants 26a2 des dents 26a de la roue 26, engendrant ainsi un effort de freinage à la rotation du verrou 3 relativement faible. Une fois le verrou 3 bloqué à l'embase 1, le desserrage du verrou, pouvant être provoqué par des vibrations externes transmises au connecteur électrique assemblé, est empêché par les flancs à pente raide ou abrupte 26a1, 28a1 des dents 26a et 28a des roues 26 et 28. En effet, la rotation du verrou 3 dans le sens contraire à la flèche F s'accompagne d'une rotation dans le même sens de la roue 28 relativement à la roue 26 mais cette rotation est stoppée par les flancs abrupts des dents 28a de la roue 28 venant en butée contre les flancs abrupts correspondants des dents 26a de la roue 26. Seul un effort relativement important appliqué à la roue 28 permet aux dents 28a de sauter par dessus les dents 26a et ce à l'encontre de la force de rappel de l'organe élastique 27. On réalise de la sorte un blocage du verrou 3 dans le sens du dévissage suffisamment efficace pour résister aux efforts résultant des vibrations externes tendant à desserrer le verrou 3.Before fixing the plug 2 to the base 1 by the bolt 3, the assembly of the body 4 of the plug 2 to the body 5 of the bolt is carried out by introducing the body 4 axially into the bolt 3 so that the threaded part 25 passes through the annular wall 7, the elastic member 27 and the wheels 26, 28 and then engaging the two pins 24 respectively through the two grooves 8 of the wall 7 which are then in the portion of space left free by the elastic member 27 between the first wheel 26 and the wall 7. By turning the plug body 4 relative to the body 5 of the lock 3, the two lugs 24 are housed respectively in the two grooves 26b of the first wheel 26. Then, we screws the bolt 3 and the bolt 3 to the base 1 by the threads 9 and 17. The rotation of the bolt 3 in the direction of screwing materialized by the arrow F rotates in the same direction the second wheel 28 relative to the first wheel 26 which is immobilized in rotation relative to the body 4 of fi che by the two lugs 24. Thus, the gently sloping flanks 28a2 of the teeth 28a of the wheel 28 slide on the corresponding flanks 26a2 of the teeth 26a of the wheel 26, thus generating a relatively low braking force upon rotation of the lock 3. Once the lock 3 is blocked at the base 1, the loosening of the lock, which can be caused by external vibrations transmitted to the assembled electrical connector, is prevented by the steep or steep sides 26a1, 28a1 of the teeth 26a and 28a of the wheels. 26 and 28. In fact, the rotation of the lock 3 in the opposite direction to the arrow F is accompanied by a rotation in the same direction of the wheel 28 relative to the wheel 26 but this rotation is stopped by the steep flanks of the teeth 28a of the wheel 28 abutting against the corresponding steep flanks of the teeth 26a of the wheel 26. Only a relatively large force applied to the wheel 28 allows the teeth 28a to jump over the teeth 26a and this against the return force of the elastic member 27. In this way, the lock 3 is blocked in the direction of unscrewing sufficiently effective to withstand the forces resulting from external vibrations tending to loosen the lock 3.

De plus, le montage et le démontage des roues 26, 28 et de l'organe élastique 27 sont relativement aisés contrairement aux connecteurs électriques connus jusqu'à maintenant.In addition, the mounting and dismounting of the wheels 26, 28 and of the elastic member 27 are relatively easy unlike the electrical connectors known up to now.

Selon une variante, il est possible d'obtenir les mêmes effets ci-dessus mentionnés en solidarisant la roue 26 au verrou 3 et immobilisant en rotation la roue 28 au corps 4 de fiche 2 à l'aide d'ergots identiques aux ergots 24, l'organe élastique 27 étant bien entendu placé du côté de la roue 28 de façon que les dents 28a de cette dernière soient maintenues élastiquement en engrènement avec les dents 26a de la roue 26, lesquelles dents ont leurs flancs en pente douce glissant les uns sur les autres quand la roue 26 est entraînée dans le sens de rotation correspondant au vissage du verrou et leurs flancs en pente abrupte venant en butée les uns contre les autres dans le sens du dévissage du verrou 3.According to a variant, it is possible to obtain the same effects mentioned above by securing the wheel 26 to the latch 3 and immobilizing in rotation the wheel 28 to the body 4 of plug 2 using lugs identical to the lugs 24, the elastic member 27 being of course placed on the side of the wheel 28 so that the teeth 28a of the latter are held elastically in mesh with the teeth 26a of the wheel 26, which teeth have their gently sloping sides sliding on each other the others when wheel 26 is driven in the direction of rotation corresponding to the screwing of the bolt and their steep-sided sides abutting against each other in the direction of unscrewing the bolt 3.

Claims (10)

1. Connecteur électrique du type comprenant une embase (1), une fiche (2), un verrou (3) monté sur le corps (4) de fiche pour solidariser la fiche (2) à l'embase (1) par vissage et des moyens de liaison entre le corps (4) de fiche (2) et le verrou (3) freinant la rotation dans les deux sens du verrou (3) relativement au corps (4) de fiche et agencés de façon à freiner la rotation du verrou (3) dans le sens du dévissage de celui-ci suivant un effort supérieur à l'effort de freinage du verrou (3) dans le sens du vissage de ce dernier, caractérisé en ce que les moyens de liaison comprennent deux roues coaxiales (26, 28), dont les faces latérales se faisant face comportent des dents (26a, 28a), chacune à flancs respectivement en pentes douce et abrupte, maintenues en engrènement les unes avec les autres par la force de rappel d'un organe élastique (27), la roue (28) étant solidaire du corps (5) du verrou (3) tandis que l'autre roue (26) est immobilisée en rotation relativement au corps (4) de fiche (2) et peut se déplacer axialement relativement à celui-ci à l'encontre de la force de rappel de l'organe élastique (27), de sorte que la rotation du verrou (3) dans le sens du vissage provoque le glissement des flancs à pente douce (28a2) des dents (28a) de la roue (28) sur les flancs à pente douce correspondants (26a2) des dents (26a) de l'autre roue (26) et la rotation du verrou (3) dans le sens du dévissage amène les flancs à pente abrupte (28a1) des dents (28a) de la roue (28) en butée contre les flancs à pente abrupte correspondants (26a1) des dents (26a) de l'autre roue (26).1. Electrical connector of the type comprising a receptacle (1), a plug (2), a latch (3) mounted on the plug body (4) to secure the plug (2) to the receptacle (1) by screwing and connecting means between the body (4) of plug (2) and the latch (3) braking the rotation in both directions of the latch (3) relative to the body (4) of plug and arranged so as to brake the rotation of the lock (3) in the direction of unscrewing the latter according to a force greater than the braking force of the lock (3) in the direction of screwing the latter, characterized in that the connecting means comprise two coaxial wheels ( 26, 28), the side faces of which face each other have teeth (26a, 28a), each with flanks respectively in gentle and steep slopes, held in engagement with one another by the return force of an elastic member ( 27), the wheel (28) being integral with the body (5) of the lock (3) while the other wheel (26) is immobilized in relative rotation ment to the plug body (4) (2) and can move axially relative thereto against the return force of the elastic member (27), so that the rotation of the latch (3) in the direction of screwing causes the flanks with a gentle slope (28a2) of the teeth (28a) of the wheel (28) to slide on the corresponding gentle slope flanks (26a2) of the teeth (26a) of the other wheel (26) and the rotation of the lock (3) in the unscrewing direction brings the steep sides (28a1) of the teeth (28a) of the wheel (28) in abutment against the corresponding steep sides (26a1) of the teeth (26a) of the other wheel (26). 2. Connecteur selon la revendication 1, caractérisé en ce que le corps (4) de fiche comprend au moins un ergot (24) solidaire de celui-ci engagé dans une rainure interne de forme conjuguée (26b) de l'autre roue (26) précitée.2. Connector according to claim 1, characterized in that the plug body (4) comprises at least one lug (24) integral with the latter engaged in an internal groove of conjugate shape (26b) of the other wheel (26 ) cited above. 3. Connecteur selon la revendication 2, caractérisé en ce que deux ergots (24) diamètralement opposés sont solidarisés au corps (4) de fiche et engagés respectivement dans deux rainures internes conjuguées (26b) de l'autre roue (26) précitée.3. Connector according to claim 2, characterized in that two diametrically opposite lugs (24) are secured to the body (4) of plug and engaged respectively in two conjugate internal grooves (26b) of the aforementioned other wheel (26). 4. Connecteur selon l'une des revendications précédentes, caractérisé en ce que la roue (28) précitée est solidarisée au corps (5) du verrou (3) par vissage de celle-ci dans le corps (5) de verrou (3).4. Connector according to one of the preceding claims, characterized in that the aforementioned wheel (28) is secured to the body (5) of the lock (3) by screwing the latter into the body (5) of the lock (3) . 5. Connecteur électrique selon l'une des revendications précédentes, caractérisé en ce que l'organe élastique de rappel (27) est constitué par un anneau ondulé interposé entre la face latérale de la roue (26) opposée à sa face dentée et une paroi annulaire interne du corps (5) du verrou (3).5. Electrical connector according to one of the preceding claims, characterized in that the elastic return member (27) consists of a corrugated ring interposed between the lateral face of the wheel (26) opposite its toothed face and a wall internal annular of the body (5) of the lock (3). 6. Connecteur selon l'une des revendications précédentes, caractérisé en ce que l'autre roue (26) précitée et l'anneau élastique (27) sont logés dans une cavité annulaire définie entre la roue (28) et la paroi annulaire (7) précitée.6. Connector according to one of the preceding claims, characterized in that the aforementioned other wheel (26) and the elastic ring (27) are housed in an annular cavity defined between the wheel (28) and the annular wall (7 ) above. 7. Connecteur électrique selon l'une des revendications précédentes, caractérisé en ce que le corps (4) de fiche (2) comprend une collerette (22) en appui contre la face latérale de la paroi annulaire interne (7) précitée opposée à celle servant d'appui à l'organe élastique de rappel (27).7. Electrical connector according to one of the preceding claims, characterized in that the body (4) of plug (2) comprises a flange (22) bearing against the lateral face of the above-mentioned internal annular wall (7) opposite to that serving as a support for the elastic return member (27). 8. Connecteur électrique selon l'une des revendications précédentes, caractérisé en ce que pour l'assemblage du verrou (3) au corps (4) de fiche (2), la paroi annulaire interne (7) précitée du verrou (3) comprend deux rainures (8) de passage respectivement des deux ergots (24) entre l'autre roue (26) précitée et la paroi annulaire interne (7), les deux ergots (24) étant ensuite logés respectivement dans les deux rainures (26b) de la roue (26) par rotation du corps (4) de fiche (2) relativement au verrou (3).8. Electrical connector according to one of the preceding claims, characterized in that for the assembly of the lock (3) to the body (4) of plug (2), the above-mentioned internal annular wall (7) of the lock (3) comprises two grooves (8) for passage of the two lugs (24) respectively between the aforementioned other wheel (26) and the internal annular wall (7), the two lugs (24) then being housed respectively in the two grooves (26b) of the wheel (26) by rotation of the plug body (4) (2) relative to the latch (3). 9. Connecteur électrique selon l'une des revendications précédentes, caractérisé en ce que le verrou (3) comprend un filetage intérieur (9) réalisé du côté de la face latérale de la paroi annulaire (7) précitée sur laquelle est en appui la collerette (22) et coopérant avec un filetage extérieur correspondant du corps (13) de l'embase (1).9. Electrical connector according to one of the preceding claims, characterized in that the latch (3) comprises an internal thread (9) produced on the side of the lateral face of the abovementioned annular wall (7) on which the flange is supported. (22) and cooperating with a corresponding external thread of the body (13) of the base (1). 10. Connecteur électrique selon l'une des revendications précédentes, caractérisé en ce que les deux roues dentées (26, 28) sont en acier dur.10. Electrical connector according to one of the preceding claims, characterized in that the two toothed wheels (26, 28) are made of hard steel.
EP90400262A 1989-02-03 1990-01-31 Electrical connector Withdrawn EP0381582A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8901420A FR2642908B1 (en) 1989-02-03 1989-02-03 ELECTRICAL CONNECTOR
FR8901420 1989-02-03

Publications (1)

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EP0381582A1 true EP0381582A1 (en) 1990-08-08

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Application Number Title Priority Date Filing Date
EP90400262A Withdrawn EP0381582A1 (en) 1989-02-03 1990-01-31 Electrical connector

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US (1) US5035640A (en)
EP (1) EP0381582A1 (en)
FR (1) FR2642908B1 (en)

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FR2728731A1 (en) * 1994-12-26 1996-06-28 Framatome Connectors France Electrical connector for signal transmission in aeronautical or space applications
EP0739056A2 (en) * 1995-03-23 1996-10-23 DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung Components with anti rotation securing system
US20100163146A1 (en) * 2006-08-08 2010-07-01 Jean-Matthieu Bodin Tread Design for Heavy-Load Transport Vehicles
CN104454910A (en) * 2014-10-11 2015-03-25 郑州航天电子技术有限公司 Micro-circular disengagement preventing structure
EP3252878A1 (en) * 2016-06-02 2017-12-06 Souriau Locking and unlocking system

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EP0645844A2 (en) * 1993-08-27 1995-03-29 Sunbank Electronics, Inc. Self-seating connector adapter
EP0645844A3 (en) * 1993-08-27 1996-07-31 Sunbank Electronics Inc Self-seating connector adapter.
FR2728731A1 (en) * 1994-12-26 1996-06-28 Framatome Connectors France Electrical connector for signal transmission in aeronautical or space applications
EP0739056A2 (en) * 1995-03-23 1996-10-23 DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung Components with anti rotation securing system
EP0739056A3 (en) * 1995-03-23 1997-11-19 DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung Components with anti rotation securing system
US20100163146A1 (en) * 2006-08-08 2010-07-01 Jean-Matthieu Bodin Tread Design for Heavy-Load Transport Vehicles
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CN104454910A (en) * 2014-10-11 2015-03-25 郑州航天电子技术有限公司 Micro-circular disengagement preventing structure
EP3252878A1 (en) * 2016-06-02 2017-12-06 Souriau Locking and unlocking system

Also Published As

Publication number Publication date
FR2642908B1 (en) 1992-09-04
US5035640A (en) 1991-07-30
FR2642908A1 (en) 1990-08-10

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