EP0398770A1 - Connection device for a coaxial cable, particularly for connecting an antenna to a car radio - Google Patents

Connection device for a coaxial cable, particularly for connecting an antenna to a car radio Download PDF

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Publication number
EP0398770A1
EP0398770A1 EP90400947A EP90400947A EP0398770A1 EP 0398770 A1 EP0398770 A1 EP 0398770A1 EP 90400947 A EP90400947 A EP 90400947A EP 90400947 A EP90400947 A EP 90400947A EP 0398770 A1 EP0398770 A1 EP 0398770A1
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EP
European Patent Office
Prior art keywords
core
coaxial cable
housing
connecting member
metal
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Withdrawn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
EP90400947A
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German (de)
French (fr)
Inventor
Ernest Pizon
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.)
Mecaniplast
Original Assignee
Mecaniplast
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Filing date
Publication date
Application filed by Mecaniplast filed Critical Mecaniplast
Publication of EP0398770A1 publication Critical patent/EP0398770A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/02—Connectors or connections adapted for particular applications for antennas

Definitions

  • the invention relates to a connection device for a coaxial cable, in particular for connecting an antenna to a radio station, a device of the type which includes: a metal part intended to be electrically connected to the metal braid of the coaxial cable, this part being provided with a tubular appendage adapted to receive one end of this coaxial cable; a connection member intended to be connected to the core of the cable; and an insulating core placed between the aforesaid metal part and the connection member.
  • Connection devices of the kind referred to above, known to date require relatively delicate and expensive manipulations for their mounting and for establishing the electrical connection between the connection member and the core of the coaxial cable, this connection generally being established by tin soldering.
  • the object of the invention is, above all, to provide a connection device for coaxial cable which is of a simple and economical construction, and which enables the electrical connection, seamless, to be established quickly and reliably between the 'connecting member and the cable core, especially in the case of mass production.
  • a connection device for a coaxial cable is characterized in that the aforesaid insulating core has a passage, substantially radial, in the extension of the tubular appendage, suitable for receiving one end of soul stripped of the coaxial cable and a housing extending transversely with respect to the mean direction of the aforesaid appendage, housing in which the passage opens, the aforesaid connection member comprising a part capable of engaging in the housing and thus causing folding of one end of the core of the coaxial cable projecting into this housing, and the clamping of this folded end against a surface of the core so as to establish the electrical connection between this core and said connecting member.
  • the metal part intended to be electrically connected to the braid of the coaxial cable can be formed by an envelope, in particular cylindrical or prismatic, inside which the core is placed, while the connection member is coaxial with said envelope; in this case, advantageously, the core is traversed axially by the housing, which opens at each end.
  • the metal casing may include a transverse bottom provided with an opening allowing the connection member to be introduced through the bottom of this casing. The core of the coaxial cable is then folded back on the side opposite the bottom. It would, of course, be possible to introduce the connection member on the side opposite the bottom.
  • a metal plate is provided to close the bottom of the envelope after the connection member has been put in place, in order to complete the shielding.
  • This closing plate can be constituted by a folding door, linked to the envelope on a part of its periphery, said door being able to be closed after the connection member has been put in place.
  • Such a door is generally provided in an envelope made of cut or stamped sheet metal.
  • the above metal part of the device can consist of an extended washer radially by a connection lug forming the tubular appendage, this washer being in abutment against a flat transverse face of the insulating core, while the connection member is constituted by another washer, in abutment against the other face of the insulating core , the washer forming the connection member comprising at least one tab folded back towards the core relative to the mean plane of the washer, this tab being able to engage in the housing of the insulating core.
  • This transverse housing can be constituted by a recess provided in the thickness of the wall of the core and crossed by the aforesaid passage, the tongue of the connection member being adapted to engage in this recess by folding down the stripped core of the cable against the wall of this recess and by applying pressure against this core.
  • One of the two elements constituted by the tongue or the wall of the recess against which the exposed core rests has a certain elasticity, favorable to the establishment of electrical contact.
  • the transverse housing is constituted by a central opening of the core passing through it right through, while the connection member comprises a washer provided on its internal edge with a crown folded down substantially at right angles to the mean plane of the washer, this crown being able to engage in the opening of the core by folding the end of the stripped core of the cable and establishing the electrical connection.
  • the crown may include a cut, elastic tab capable of establishing contact with the core of the coaxial cable.
  • the crown has a continuous rim, while an elasticity of the components and / or an appropriate clearance are provided to allow a tightening of the cable core, without tearing.
  • a fixing screw electrically linked to the antenna, is provided for mounting the base on the wall, this screw passing through the core insulating.
  • connection member of the connection device can then comprise a metal body, linked to the screw, capable of clamping the core of the coaxial cable against a part of the core.
  • the metal body may be integral with the screw and formed by smooth bulging of the screw rod.
  • the metal body is constituted by a nut embedded in the core, and into which the screw rotatably mounted in the base can be screwed.
  • connection device 1 for coaxial cable 2 in particular for connecting a motor vehicle antenna, in particular a roof antenna, to a radio station.
  • the device 1 is intended to cooperate with a complementary device 3, very briefly shown in FIG. 1, which, for example, can protrude from the rear face of a car radio station.
  • the device 1 comprises a metal part 4 formed by a cylindrical or prismatic envelope 5, of axis A intended to be electrically connected to the metal braid 6 of the coaxial cable 2.
  • the envelope 5 is provided with a tubular appendage 7, arranged radially, suitable for receiving one end of the cable 2.
  • a mechanical connection is established between this appendage 7 and the cable, for example by crimping; the electrical connection between the end of the stripped braid 6, located inside the appendix 7 and this appendage can also be produced by crimping.
  • a connection member 8 consisting of a plug 9 is arranged coaxially with the envelope 5.
  • the plug 9 is held in the envelope by an insulating core 10, in particular made of plastic, coaxial with the envelope 5.
  • the core 10 has a passage 11 of radial orientation, substantially in the extension of the tubular appendage 7, adapted to receive an end 12 of the stripped core of the coaxial cable 2.
  • the core of the cable 2 can be single-strand or multi-strand .
  • This passage 11 may have a funnel shape directed radially inwards to facilitate the entry of the end 12.
  • Passage 11 opens into a housing 13 extending transversely with respect to the mean direction of appendage 7.
  • the housing 13 is coaxial with the core 10 and opens at each longitudinal end.
  • the cross section of this housing 13 has the same circular or prismatic shape as the cross section of the plug 9.
  • An elasticity of the components and / or an appropriate clearance are provided at the plug and housing sections to allow tightening of the cable core, without tearing.
  • the game can advantageously be provided only on the part of the periphery in contact with the core.
  • the metal casing 5 is open on one side, namely the upper side in the case of FIG. 1 and comprises, at its other end, a bottom 14 provided with an opening 15 making it possible to introduce the plug 9, into the core 10, through the bottom 14.
  • a metal cup 16 is advantageously provided for closing the opening 15 when the plug 9 has been put in place, so as to complete the shielding provided by the casing 5.
  • This metal cup 16 can be constituted by a folding door, connected to part of its outline at the bottom 14, this connection forming a hinge.
  • the door formed by the cup 16 is arranged substantially at right angles to the mean plane of the bottom 14 and is then folded against the bottom when the plug 9 has been put in place.
  • Such a folding door is generally provided when the envelope 5 is made of cut or stamped sheet metal.
  • the end of the antenna 2 is stripped so that the end 12 of the core protrudes with respect to the insulating sheath 17 separating the core 12 from the braid 6. Part of this sheath 17 protrudes by relation to the stripped part of the braid 6.
  • the end of the cable 2 is then introduced into the tubular appendage 7, the core 12 being oriented substantially in the axial direction of this end.
  • the core 12 enters the passage 11 which is disposed opposite the appendage 7, and projects into the housing 13, until it comes to bear against the wall of this housing opposite the passage 11.
  • the stripped portions of the the end of cable 2 have lengths such that the outer sheath 18 of this cable 2 penetrates sufficiently into appendix 7.
  • the plug 9 is then introduced through the bottom 14 through the opening 15 into the housing 13, which causes the end 12 of the core to be bent upwards and this folded end tightened against the interior surface of the core 10, thus establishing the electrical connection between the core 12 and the plug 9, and the mechanical blocking of this plug in the core 10 and the bottom of the casing 14 is closed by the cup 16, optionally foldable.
  • the plug 9 projects from the side of the core 10 opposite the bottom 16 over a length sufficient to be connected to a corresponding female part.
  • the folding of the end 12 on the side opposite the bottom 14 makes it possible to reduce the thickness of the core 10 comprised between the axis of the cable 2 and the bottom 14.
  • the core 10 can have a sufficient thickness on the side from the bottom 14 so that the end 12 is folded towards the bottom 14, that is to say in the opposite direction to that shown in FIG. 1.
  • the plug 9 could be inserted into the housing 13 by the side opposite the bottom 14, the latter then being able to be completely closed and not to have an opening 15.
  • FIG. 2 shows a variant 101 of the connection device for a coaxial cable 102, with a view to connecting an antenna provided with a base 121, diagrammatically shown, to a car radio station connected to the other end of the cable 102.
  • the base 121 comprises, in a conventional manner, a threaded rod 122 intended to pass through an opening 123 provided in the wall P. The blocking on this wall is ensured by means of a nut 124 which is screwed onto the rod 122.
  • the metal part 104 intended to be connected to the braid 106 of the coaxial cable 102 is constituted by a metal washer extended radially by a connection lug 107 forming the tubular appendage.
  • This lug is offset transversely, relative to the plane of the washer 104, so as to be more distant from the wall P.
  • the washer 104 bears against the face of the core 110 facing the wall P so as to be clamped against this wall by said nucleus.
  • the connecting member 108 consists of another conductive, metallic washer 125 bearing against the other flat face of the remote core 110 of the wall P.
  • the washers 104, 125 and the core 110 are crossed by the rod 122.
  • the nut 124 by tightening the washer 125 against the core, establishes an electrical connection between the rod 122, itself electrically connected to the antenna, and said washer 125.
  • the passage 111 is formed by a sort of radial notch provided in the wall of the core 110 on the side opposite to the washer 104 and opening onto the face of the core against which the washer 125 abuts.
  • the housing 113 is formed by a kind of well, substantially parallel to 1 axis of the core 110, provided in the wall of this core to cut the passage 110 and open onto the face of the core in abutment against the washer 125.
  • This washer 125 comprises a tab 126 folded down relative to its mean plane substantially at right angles, suitable for engaging in the housing 113, for a correct relative angular position of the washer 125 and of the core 110.
  • the end 127 of the tab intended to be located in the bottom of the housing 113 has a curved shape giving it a certain elasticity.
  • the stripped end of the core 112 is engaged in the passage 111, substantially in a radial direction, this core being substantially rectilinear.
  • the tab 126 When placing the washer 125 against the core 110, the tab 126 when entering the housing 113 folds the core 112 towards the bottom of the housing 113 and applies it against the surface of this housing as shown in the figure 2. The electrical contact between the member 108 (washer 125) and the core 112 is thus established.
  • Figure 3 shows a variant of realization of a connection device similar to that of FIG. 2.
  • transverse housing 213, in FIG. 3 is constituted by the central opening of the core 210, which passes right through it.
  • connection member 208 is formed by a washer 225 whose internal opening is bordered by a crown 226 folded back so as to engage inside the opening 213.
  • This crown 226 has an elastic tab 227 cut along two edges substantially parallel to the axis of the housing 213 and connected by a short side, forming a hinge, to the washer 225.
  • the inner end of the tab 227 is curved so as to rotate its convexity against the internal surface of the core 210.
  • the passage 211 the bottom of which may be limited by an inclined surface S serving as a ramp for guiding the introduction of the core 212, as in the case of the passage 111, crosses radially the wall of the core 210 and opens into the opening 213.
  • the core of the cable 202 is stripped over a length sufficient for the end 212 of this core to penetrate, in a substantially radial direction, into the opening 213.
  • connection member 208 (washer 225) is then placed on the core 210 by introduction of the crown 226 into the opening 213 so that the middle part of the tab 227 causes the end 212 of the soul towards the inside of the opening 213, against the internal surface of this opening.
  • the core 212 is tightened elastically by the tab 227 against the wall of the core 210.
  • an elasticity is provided at the end of the tongue 126 or of the tab 227, while the bearing wall provided on the core 110 or 210 is relatively rigid.
  • FIG. 5 shows a base 421 of the radio antenna, provided with a fixing screw 422, electrically linked to the antenna.
  • Screw 422 passes through a hole 423 of the fixing wall P; an insulating sleeve M surrounds the screw 422 in the zone passing through the wall P.
  • the screw 422 also passes through the insulating core 410, so as to be able to receive, on its projecting end, a fixing nut.
  • connection member 408 comprises a metal body constituted by a smooth, cylindrical bulge 409, integral with the screw 422.
  • This bulge 409 is suitable for clamping the end 412 of the core of the coaxial cable against a part of the core 410, formed by the internal surface of a bore 428 of diameter slightly greater than that of the bulge 409.
  • the bore 428 is located on the side of the end 412 opposite the wall P, so that this end 412 is folded back to the opposite of the wall P. Clearances can be provided on the internal surface of the core 410 to avoid any risk of tearing of the end 412 during tightening caused by the action of the nut on the screw 422.
  • Figure 6 shows a variant of the base of Figure 5 for folding the end 512 of the core of the coaxial cable to the wall P.
  • the metallic body 508 consists of a nut 509 embedded in the core 510 and which cannot rotate relative to the core due to an external knurling 529.
  • the nut 509 has a cylindrical extension 530, with rounded ends, in the direction of the wall P so as to fold the end 512 towards the wall P, and to clamp this end 512 against the internal surface of the core.
  • the antenna base includes a screw 522, of which only the lower end is shown, which can rotate freely in said base.
  • the head of the screw 522 is preferably of the hexagon socket type.
  • the mounting of the base on the wall P is obtained by engaging the screw 522 in the nut 509 and rotating the screw 522 to block the assembly.
  • the solution of the invention allows simple and rapid assembly with establishment of the electrical connection between the core of the coaxial cable and the connection member in a reliable manner, without the need for a welding.

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Abstract

The device comprises: a metal part (4) provided with a tubular appendage (7); a connecting element (8); and an insulating central body (10) placed between the abovementioned metal part (4) and the connecting element (8). The insulating central body (10) comprises a radial passage (11) suitable for receiving one end (12) of the stripped core of the coaxial cable and a housing (13) into which the passage (11) emerges; the abovementioned connecting element (8) comprises a portion suitable for engaging in the housing (13) and for causing the bending of the end (12) of the core of the coaxial cable and the gripping of this end folded over against the surface of the central body so as to establish the electrical linkage between this core and the said connecting element (8). <IMAGE>

Description

L'invention est relative à un dispositif de connexion pour un câble coaxial, notamment pour rac­corder une antenne à un poste autoradio, dispositif du genre de ceux qui comportent : une pièce métallique destinée à être reliée électriquement à la tresse métallique du câble coaxial, cette pièce étant munie d'un appendice tubulaire propre à recevoir une extrémité de ce câble coaxial ; un organe de raccorde­ment destiné à être relié à l'âme du câble ; et un noyau isolant placé entre la susdite pièce métallique et l'organe de raccordement.The invention relates to a connection device for a coaxial cable, in particular for connecting an antenna to a radio station, a device of the type which includes: a metal part intended to be electrically connected to the metal braid of the coaxial cable, this part being provided with a tubular appendage adapted to receive one end of this coaxial cable; a connection member intended to be connected to the core of the cable; and an insulating core placed between the aforesaid metal part and the connection member.

Les dispositifs de connexion, du genre visé précédemment, connus à ce jour nécessitent des manipu­lations relativement délicates et onéreuses pour leur montage et pour établir la liaison électrique entre l'organe de raccordement et l'âme du câble coaxial, cette liaison étant généralement établie par soudure à l'étain.Connection devices, of the kind referred to above, known to date require relatively delicate and expensive manipulations for their mounting and for establishing the electrical connection between the connection member and the core of the coaxial cable, this connection generally being established by tin soldering.

L'invention a pour but, surtout, de fournir un dispositif de connexion pour câble coaxial qui soit d'une construction simple et économique, et qui per­mette d'établir d'une manière rapide et fiable la liaison électrique, sans soudure, entre l'organe de raccordement et l'âme du câble, notamment dans le cas de montages en grande série.The object of the invention is, above all, to provide a connection device for coaxial cable which is of a simple and economical construction, and which enables the electrical connection, seamless, to be established quickly and reliably between the 'connecting member and the cable core, especially in the case of mass production.

On souhaite en particulier que le montage et l'établissement de la liaison électrique puissent être effectués automatiquement.In particular, it is desired that the assembly and establishment of the electrical connection can be carried out automatically.

Selon l'invention, un dispositif de connex­ion pour un câble coaxial, du genre défini précédemment, est caractérisé par le fait que le sus­dit noyau isolant comporte un passage, sensiblement radial, dans le prolongement de l'appendice tubu­laire, propre à recevoir une extrémité de l'âme dénudée du câble coaxial et un logement s'étendant transversalement par rapport à la direction moyenne du susdit appendice, logement dans lequel débouche le passage, le susdit organe de raccordement comportant une partie propre à s'engager dans le logement et à provoquer ainsi le pliage d'une extrémité de l'âme du câble coaxial faisant saillie dans ce logement, et le serrage de cette extrémité repliée contre une surface du noyau de manière à établir la liaison électrique entre cette âme et ledit organe de raccordement.According to the invention, a connection device for a coaxial cable, of the kind defined above, is characterized in that the aforesaid insulating core has a passage, substantially radial, in the extension of the tubular appendage, suitable for receiving one end of soul stripped of the coaxial cable and a housing extending transversely with respect to the mean direction of the aforesaid appendage, housing in which the passage opens, the aforesaid connection member comprising a part capable of engaging in the housing and thus causing folding of one end of the core of the coaxial cable projecting into this housing, and the clamping of this folded end against a surface of the core so as to establish the electrical connection between this core and said connecting member.

La pièce métallique destinée à être reliée électriquement à la tresse du câble coaxial peut être formée par une enveloppe, notamment cylindrique ou prismatique, à l'intérieur de laquelle est placé le noyau, tandis que l'organe de raccordement est coaxial à ladite enveloppe ; dans ce cas, avantageusement, le noyau est traversé axialement par le logement, qui débouche à chaque extrémité. L'enveloppe métallique peut comporter un fond transversal muni d'une ouver­ture permettant d'introduire l'organe de raccordement à travers le fond de cette enveloppe. L'âme du câble coaxial se trouve alors repliée du côté opposé au fond. Il serait possible, bien entendu, d'introduire l'organe de raccordement du côté opposé au fond.The metal part intended to be electrically connected to the braid of the coaxial cable can be formed by an envelope, in particular cylindrical or prismatic, inside which the core is placed, while the connection member is coaxial with said envelope; in this case, advantageously, the core is traversed axially by the housing, which opens at each end. The metal casing may include a transverse bottom provided with an opening allowing the connection member to be introduced through the bottom of this casing. The core of the coaxial cable is then folded back on the side opposite the bottom. It would, of course, be possible to introduce the connection member on the side opposite the bottom.

Avantageusement, on prévoit une plaque métallique pour fermer le fond de l'enveloppe après mise en place de l'organe de raccordement, afin de compléter le blindage. Cette plaque de fermeture peut être constituée par une porte rabattable, liée à l'enveloppe sur une partie de sa périphérie, ladite porte pouvant être refermée après mise en place de l'organe de raccordement. Une telle porte est généralement prévue dans une enveloppe réalisée en tôle découpée ou emboutie.Advantageously, a metal plate is provided to close the bottom of the envelope after the connection member has been put in place, in order to complete the shielding. This closing plate can be constituted by a folding door, linked to the envelope on a part of its periphery, said door being able to be closed after the connection member has been put in place. Such a door is generally provided in an envelope made of cut or stamped sheet metal.

La susdite pièce métallique du dispositif peut être constituée par une rondelle prolongée radialement par une cosse de raccordement formant l'appendice tubulaire, cette rondelle étant en appui contre une face transversale plane du noyau isolant, tandis que l'organe de raccordement est constitué par une autre rondelle, en appui contre l'autre face du noyau isolant, la rondelle formant l'organe de rac­cordement comprenant au moins une patte rabattue vers le noyau relativement au plan moyen de la rondelle, cette patte étant propre à s'engager dans le logement du noyau isolant.The above metal part of the device can consist of an extended washer radially by a connection lug forming the tubular appendage, this washer being in abutment against a flat transverse face of the insulating core, while the connection member is constituted by another washer, in abutment against the other face of the insulating core , the washer forming the connection member comprising at least one tab folded back towards the core relative to the mean plane of the washer, this tab being able to engage in the housing of the insulating core.

Ce logement transversal peut être constitué par un évidement prévu dans l'épaisseur de la paroi du noyau et traversé par le susdit passage, la languette de l'organe de raccordement étant propre à s'engager dans cet évidement en rabattant l'âme dénudée du câble contre la paroi de cet évidement et en exerçant une pression contre cette âme.This transverse housing can be constituted by a recess provided in the thickness of the wall of the core and crossed by the aforesaid passage, the tongue of the connection member being adapted to engage in this recess by folding down the stripped core of the cable against the wall of this recess and by applying pressure against this core.

L'un des deux éléments constitués par la languette ou la paroi de l'évidement contre laquelle l'âme dénudée s'appuie présente une certaine élasti­cité, favorable à l'établissement du contact élec­trique.One of the two elements constituted by the tongue or the wall of the recess against which the exposed core rests has a certain elasticity, favorable to the establishment of electrical contact.

Selon une autre possibilité, le logement transversal est constitué par une ouverture centrale du noyau le traversant de part en part, tandis que l'organe de raccordement comporte une rondelle munie sur son bord interne d'une couronne rabattue sensible­ment à angle droit par rapport au plan moyen de la rondelle, cette couronne étant propre à s'engager dans l'ouverture du noyau en venant replier l'extrémité de l'âme dénudée du câble et établir la liaison élec­trique.According to another possibility, the transverse housing is constituted by a central opening of the core passing through it right through, while the connection member comprises a washer provided on its internal edge with a crown folded down substantially at right angles to the mean plane of the washer, this crown being able to engage in the opening of the core by folding the end of the stripped core of the cable and establishing the electrical connection.

Le couronne peut comporter une patte élas­tique, découpée, propre à établir le contact avec l'âme du câble coaxial.The crown may include a cut, elastic tab capable of establishing contact with the core of the coaxial cable.

En variante, la couronne présente un pourtour continu, tandis qu'une élasticité des compo­sants et/ou un dégagement approprié sont prévus pour permettre un serrage de l'âme du câble, sans arrache­ment.Alternatively, the crown has a continuous rim, while an elasticity of the components and / or an appropriate clearance are provided to allow a tightening of the cable core, without tearing.

Dans le cas d'une embase d'antenne autora­dio, destinée à être montée sur une paroi, une vis de fixation, liée électriquement à l'antenne, est prévue pour le montage de l'embase sur la paroi, cette vis traversant le noyau isolant.In the case of a car radio antenna base, intended to be mounted on a wall, a fixing screw, electrically linked to the antenna, is provided for mounting the base on the wall, this screw passing through the core insulating.

L'organe de raccordement du dispositif de connexion peut alors comprendre un corps métallique, lié à la vis, propre à serrer l'âme du câble coaxial contre une partie du noyau.The connection member of the connection device can then comprise a metal body, linked to the screw, capable of clamping the core of the coaxial cable against a part of the core.

Le corps métallique peut être solidaire de la vis et constitué par renflement lisse de la tige de vis.The metal body may be integral with the screw and formed by smooth bulging of the screw rod.

Selon une autre possibilité, le corps métallique est constitué par un écrou encastré dans le noyau, et dans lequel peut se visser la vis montée rotative dans l'embase.According to another possibility, the metal body is constituted by a nut embedded in the core, and into which the screw rotatably mounted in the base can be screwed.

L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après à propos de modes de réalisation particuliers décrits avec référence aux dessins ci-­annexés, mais qui ne sont nullement limitatifs.

  • La figure 1, de ces dessins, est une coupe axiale d'un dispositif de connexion conforme à l'invention.
  • La figure 2 montre, également en coupe axi­ale, une autre réalisation d'un dispositif de connex­ion selon l'invention.
  • La figure 3 montre semblablement à la figure 2, une autre variante de réalisation.
  • La figure 4 montre une variante du disposi­tif de la figure 3.
  • La figure 5 montre en coupe un dispositif de connexion pour une embase d'antenne dont l'organe de raccordement est prévu sur la vis de fixation.
  • La figure 6, enfin, montre également en coupe une variante du dispositif de la figure 5.
The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be more explicitly discussed below in connection with particular embodiments described with reference to the attached drawings, but which are in no way limiting.
  • Figure 1 of these drawings is an axial section of a connection device according to the invention.
  • Figure 2 shows, also in axial section, another embodiment of a connection device according to the invention.
  • Figure 3 similarly shows in Figure 2, another alternative embodiment.
  • FIG. 4 shows a variant of the device of FIG. 3.
  • FIG. 5 shows in section a connection device for an antenna base, the connection member of which is provided on the fixing screw.
  • FIG. 6, finally, also shows in section a variant of the device of FIG. 5.

En se reportant à la figure 1 des dessins, on peut voir un dispositif de connexion 1 pour câble coaxial 2, en particulier pour raccorder une antenne de véhicule automobile, notamment une antenne de toit, à un poste autoradio. Le dispositif 1 est destiné à coopérer avec un dispositif complémentaire 3, très sommairement représenté sur la figure 1, qui, par exemple, peut faire saillie sur la face arrière d'un poste autoradio.Referring to Figure 1 of the drawings, one can see a connection device 1 for coaxial cable 2, in particular for connecting a motor vehicle antenna, in particular a roof antenna, to a radio station. The device 1 is intended to cooperate with a complementary device 3, very briefly shown in FIG. 1, which, for example, can protrude from the rear face of a car radio station.

Le dispositif 1 comprend une pièce métallique 4 formée par une enveloppe 5, cylindrique ou prismatique, d'axe A destinée à être reliée élec­triquement à la tresse métallique 6 du câble coaxial 2. L'enveloppe 5 est munie d'un appendice tubulaire 7, disposé radialement, propre à recevoir une extrémité du câble 2. Une liaison mécanique est établie entre cet appendice 7 et le câble, par exemple par sertis­sage ; la liaison électrique entre l'extrémité de la tresse 6 dégarnie, située à l'intérieur de l'appendice 7 et cet appendice peut également être réalisée par sertissage.The device 1 comprises a metal part 4 formed by a cylindrical or prismatic envelope 5, of axis A intended to be electrically connected to the metal braid 6 of the coaxial cable 2. The envelope 5 is provided with a tubular appendage 7, arranged radially, suitable for receiving one end of the cable 2. A mechanical connection is established between this appendage 7 and the cable, for example by crimping; the electrical connection between the end of the stripped braid 6, located inside the appendix 7 and this appendage can also be produced by crimping.

Un organe de raccordement 8 constitué par une fiche 9 est disposé coaxialement à l'enveloppe 5. La fiche 9 est maintenue dans l'enveloppe par un noyau isolant 10, notamment en matière plastique, coaxial à l'enveloppe 5.A connection member 8 consisting of a plug 9 is arranged coaxially with the envelope 5. The plug 9 is held in the envelope by an insulating core 10, in particular made of plastic, coaxial with the envelope 5.

Le noyau 10 comporte un passage 11 d'orientation radiale, sensiblement dans le prolonge­ment de l'appendice tubulaire 7, propre à recevoir une extrémité 12 de l'âme dénudée du câble coaxial 2. L'âme du câble 2 peut être monobrin ou multibrin. Ce passage 11 peut avoir une forme d'entonnoir dirigée radialement vers l'intérieur pour faciliter l'entrée de l'extrémité 12. Le passage 11 débouche dans un logement 13 s'étendant transversalement par rapport à la direction moyenne de l'appendice 7. Dans le cas de la réalisation de la figure 1, le logement 13 est coaxial au noyau 10 et débouche à chaque extrémité longitudinale.La section transversale de ce logement 13 a la même forme circulaire ou prismatique que la section transversale de la fiche 9.The core 10 has a passage 11 of radial orientation, substantially in the extension of the tubular appendage 7, adapted to receive an end 12 of the stripped core of the coaxial cable 2. The core of the cable 2 can be single-strand or multi-strand . This passage 11 may have a funnel shape directed radially inwards to facilitate the entry of the end 12. Passage 11 opens into a housing 13 extending transversely with respect to the mean direction of appendage 7. In the case of the embodiment of FIG. 1, the housing 13 is coaxial with the core 10 and opens at each longitudinal end. The cross section of this housing 13 has the same circular or prismatic shape as the cross section of the plug 9.

Une élasticité des composants et/ou un jeu approprié sont prévus au niveau des sections de la fiche et du logement pour permettre un serrage de l'âme du câble, sans arrachement. Le jeu peut avan­tageusement n'être prévu que sur la partie de la périphérie en contact avec l'âme.An elasticity of the components and / or an appropriate clearance are provided at the plug and housing sections to allow tightening of the cable core, without tearing. The game can advantageously be provided only on the part of the periphery in contact with the core.

L'enveloppe métallique 5 est ouverte d'un côté, à savoir le côté supérieur dans le cas de la figure 1 et comporte, à son autre extrémité, un fond 14 muni d'une ouverture 15 permettant d'introduire la fiche 9, dans le noyau 10, à travers le fond 14.The metal casing 5 is open on one side, namely the upper side in the case of FIG. 1 and comprises, at its other end, a bottom 14 provided with an opening 15 making it possible to introduce the plug 9, into the core 10, through the bottom 14.

Une coupelle métallique 16 est avantageuse­ment prévue pour fermer l'ouverture 15 lorsque la fiche 9 a été mise en place, de manière à compléter le blindage assuré par l'enveloppe 5. Cette coupelle métallique 16 peut être constituée par une porte rabattable, reliée sur une partie de son contour au fond 14, cette liaison formant une charnière. Pour le montage de la fiche 9, la porte formée par la coupelle 16 est disposée sensiblement à angle droit par rapport au plan moyen du fond 14 puis est rabattue contre le fond lorsque la fiche 9 a été mise en place. Une telle porte rabattable est généralement prévue lorsque l'enveloppe 5 est réalisée en tôle découpée ou emboutie.A metal cup 16 is advantageously provided for closing the opening 15 when the plug 9 has been put in place, so as to complete the shielding provided by the casing 5. This metal cup 16 can be constituted by a folding door, connected to part of its outline at the bottom 14, this connection forming a hinge. For mounting the plug 9, the door formed by the cup 16 is arranged substantially at right angles to the mean plane of the bottom 14 and is then folded against the bottom when the plug 9 has been put in place. Such a folding door is generally provided when the envelope 5 is made of cut or stamped sheet metal.

L'établissement de la liaison électrique et mécanique entre l'antenne 2 et le dispositif 1 résulte immédiatement des explications qui précèdent.Establishing the electrical connection and mechanical between the antenna 2 and the device 1 immediately results from the foregoing explanations.

L'extrémité de l'antenne 2 est dénudée de telle sorte que l'extrémité 12 de l'âme fasse saillie par rapport à la gaine isolante 17 séparant l'âme 12 de la tresse 6. Une partie de cette gaine 17 fait saillie par rapport à la partie dénudée de la tresse 6.The end of the antenna 2 is stripped so that the end 12 of the core protrudes with respect to the insulating sheath 17 separating the core 12 from the braid 6. Part of this sheath 17 protrudes by relation to the stripped part of the braid 6.

L'extrémité du câble 2 est alors introduite dans l'appendice tubulaire 7, l'âme 12 étant orientée sensiblement suivant la direction axiale de cette extrémité.The end of the cable 2 is then introduced into the tubular appendage 7, the core 12 being oriented substantially in the axial direction of this end.

L'âme 12 pénètre dans le passage 11 qui est disposé en face de l'appendice 7, et fait saillie dans le logement 13, jusqu'à venir en appui contre la paroi de ce logement opposée au passage 11. Les parties dénudées de l'extrémité du câble 2 ont des longueurs telles que la gaine extérieure 18 de ce câble 2 pénètre suffisamment dans l'appendice 7.The core 12 enters the passage 11 which is disposed opposite the appendage 7, and projects into the housing 13, until it comes to bear against the wall of this housing opposite the passage 11. The stripped portions of the the end of cable 2 have lengths such that the outer sheath 18 of this cable 2 penetrates sufficiently into appendix 7.

La fiche 9 est alors introduite à travers le fond 14 par l'ouverture 15 dans le logement 13, ce qui provoque le pliage vers le haut de l'extrémité 12 de l'âme et le serrage de cette extrémité repliée conte la surface intérieure du noyau 10, établissant ainsi la liaison électrique entre l'âme 12 et la fiche 9, et le blocage mécanique de cette fiche dans le noyau 10 et le fond de l'enveloppe 14 est fermé par la coupelle 16, éventuellement rabattable.The plug 9 is then introduced through the bottom 14 through the opening 15 into the housing 13, which causes the end 12 of the core to be bent upwards and this folded end tightened against the interior surface of the core 10, thus establishing the electrical connection between the core 12 and the plug 9, and the mechanical blocking of this plug in the core 10 and the bottom of the casing 14 is closed by the cup 16, optionally foldable.

La fiche 9 fait saillie du côté du noyau 10 opposé au fond 16 sur une longueur suffisante pour être connectée à une pièce femelle correspondante.The plug 9 projects from the side of the core 10 opposite the bottom 16 over a length sufficient to be connected to a corresponding female part.

Le pliage de l'extrémité 12 du côté opposé au fond 14 permet de réduire l'épaisseur du noyau 10 comprise entre l'axe du câble 2 et le fond 14.The folding of the end 12 on the side opposite the bottom 14 makes it possible to reduce the thickness of the core 10 comprised between the axis of the cable 2 and the bottom 14.

Il est clair cependant qu'en variante le noyau 10 peut avoir une épaisseur suffisante du côté du fond 14 pour que l'extrémité 12 soit rabattue vers le fond 14, c est-à-dire dans le sens opposé à celui représenté sur la figure 1. Dans ce cas, la fiche 9 pourrait être introduite dans le logement 13 par le côté opposé au fond 14, ce dernier pouvant alors être complètement fermé et ne pas comporter d'ouverture 15.It is clear however that in a variant the core 10 can have a sufficient thickness on the side from the bottom 14 so that the end 12 is folded towards the bottom 14, that is to say in the opposite direction to that shown in FIG. 1. In this case, the plug 9 could be inserted into the housing 13 by the side opposite the bottom 14, the latter then being able to be completely closed and not to have an opening 15.

La figure 2 montre une variante 101 du dispositif de connexion pour un câble coaxial 102, en vue de raccorder une antenne munie d'une embase 121, schématiquement représentée, à un poste autoradio relié à l'autre extrémité du câble 102. L'embase 121 comporte, de manière classique, une tige filetée 122 destinée à traverser une ouverture 123 prévue dans la paroi P. Le blocage sur cette paroi est assuré à l'aide d'un écrou 124 qui vient se visser sur la tige 122.FIG. 2 shows a variant 101 of the connection device for a coaxial cable 102, with a view to connecting an antenna provided with a base 121, diagrammatically shown, to a car radio station connected to the other end of the cable 102. The base 121 comprises, in a conventional manner, a threaded rod 122 intended to pass through an opening 123 provided in the wall P. The blocking on this wall is ensured by means of a nut 124 which is screwed onto the rod 122.

Les éléments du dispositifs 101 de la figure 2 jouant des rôles semblables à des éléments déjà décrits à propos de la figure 1 sont désignés par des références numériques égales à la somme du nombre 100 et de la référence utilisée sur la figure 1. La description de ces éléments ne sera pas reprise ou ne sera effectuée que succinctement.The elements of the devices 101 in FIG. 2 playing roles similar to the elements already described in connection with FIG. 1 are designated by numerical references equal to the sum of the number 100 and the reference used in FIG. 1. The description of these elements will not be repeated or will only be carried out succinctly.

La pièce métallique 104 destinée à être reliée à la tresse 106 du câble coaxial 102 est constituée par une rondelle métallique prolongée radi­alement par une cosse de raccordement 107 formant l'appendice tubulaire. Cette cosse est déportée transversalement, relativement au plan de la rondelle 104, de manière à être plus éloignée de la paroi P. La rondelle 104 est en appui contre la face du noyau 110 tournée vers la paroi P de manière à être serrée contre cette paroi par ledit noyau.The metal part 104 intended to be connected to the braid 106 of the coaxial cable 102 is constituted by a metal washer extended radially by a connection lug 107 forming the tubular appendage. This lug is offset transversely, relative to the plane of the washer 104, so as to be more distant from the wall P. The washer 104 bears against the face of the core 110 facing the wall P so as to be clamped against this wall by said nucleus.

l'organe de raccordement 108 est constitué par une autre rondelle conductrice, métallique 125 en appui contre l'autre face plane du noyau 110 éloignée de la paroi P.the connecting member 108 consists of another conductive, metallic washer 125 bearing against the other flat face of the remote core 110 of the wall P.

Les rondelles 104, 125 et le noyau 110 sont traversés par la tige 122. L'écrou 124, en serrant la rondelle 125 contre le noyau, établit une liaison électrique entre la tige 122, elle-même reliée élec­triquement à l'antenne, et ladite rondelle 125.The washers 104, 125 and the core 110 are crossed by the rod 122. The nut 124, by tightening the washer 125 against the core, establishes an electrical connection between the rod 122, itself electrically connected to the antenna, and said washer 125.

Le passage 111 est formé par une sorte d'échancrure radiale prévue dans la paroi du noyau 110 du côté opposé à la rondelle 104 et débouchant sur la face du noyau contre laquelle vient en appui la ron­delle 125.The passage 111 is formed by a sort of radial notch provided in the wall of the core 110 on the side opposite to the washer 104 and opening onto the face of the core against which the washer 125 abuts.

Le logement 113 est formé par une sorte de puits, sensiblement parallèle à 1 axe du noyau 110, prévu dans la paroi de ce noyau pour couper le passage 110 et déboucher sur la face du noyau en appui contre la rondelle 125.The housing 113 is formed by a kind of well, substantially parallel to 1 axis of the core 110, provided in the wall of this core to cut the passage 110 and open onto the face of the core in abutment against the washer 125.

Cette rondelle 125 comprend une patte 126 rabattue par rapport à son plan moyen sensiblement à angle droit, propre à s'engager dans le logement 113, pour une position angulaire relative correcte de la rondelle 125 et du noyau 110. l'extrémité 127 de la patte destinée à se trouver dans le fond du logement 113 a une forme incurvée lui donnant une certaine élasticité.This washer 125 comprises a tab 126 folded down relative to its mean plane substantially at right angles, suitable for engaging in the housing 113, for a correct relative angular position of the washer 125 and of the core 110. the end 127 of the tab intended to be located in the bottom of the housing 113 has a curved shape giving it a certain elasticity.

On comprend immédiatement que pour le mon­tage, l'extrémité dénudée de l'âme 112 est engagée dans le passage 111, sensiblement suivant une direc­tion radiale, cette âme étant sensiblement rectiligne.It is immediately understood that for mounting, the stripped end of the core 112 is engaged in the passage 111, substantially in a radial direction, this core being substantially rectilinear.

Lors de la mise en place de la rondelle 125 contre le noyau 110, la patte 126 en entrant dans le logement 113 replie l'âme 112 vers le fond du logement 113 et l'applique contre la surface de ce logement comme représenté sur la figure 2. Le contact élec­trique entre l'organe 108 (rondelle 125) et l'âme 112 est ainsi établi.When placing the washer 125 against the core 110, the tab 126 when entering the housing 113 folds the core 112 towards the bottom of the housing 113 and applies it against the surface of this housing as shown in the figure 2. The electrical contact between the member 108 (washer 125) and the core 112 is thus established.

La figure 3 montre une variante de réalisation d'un dispositif de connexion semblable à celui de la figure 2.Figure 3 shows a variant of realization of a connection device similar to that of FIG. 2.

Les éléments du dispositif de la figure 3 identiques ou semblables à des éléments de la figure 2 sont désignés par une référence numérique égale à la somme du nombre 100 et de la référence utilisée à pro­pos de la figure 2 ; la description de ces éléments ne sera pas reprise ou ne sera effectuée que succincte­ment. Il en sera de même pour les figures suivantes où les références numériques seront augmentées de 100 à chaque fois.The elements of the device of Figure 3 identical or similar to elements of Figure 2 are designated by a reference numeral equal to the sum of the number 100 and the reference used in connection with Figure 2; the description of these elements will not be repeated or will be made only succinctly. It will be the same for the following figures where the numerical references will be increased by 100 each time.

La différence principale entre le dispositif de la figure 3 et celui de la figure 2 réside en ce que le logement transversal 213, sur la figure 3, est constitué par l'ouverture centrale du noyau 210, qui le traverse de part en part.The main difference between the device of FIG. 3 and that of FIG. 2 resides in that the transverse housing 213, in FIG. 3, is constituted by the central opening of the core 210, which passes right through it.

L'organe de raccordement 208 est formé par une rondelle 225 dont l'ouverture intérieure est bordée par une couronne 226 rabattue de manière à s'engager à l'intérieur de l'ouverture 213.The connection member 208 is formed by a washer 225 whose internal opening is bordered by a crown 226 folded back so as to engage inside the opening 213.

Cette couronne 226 comporte une patte élas­tique 227 découpée suivant deux bords sensiblement parallèles à l'axe du logement 213 et reliée par un petit côté, formant charnière, à la rondelle 225. L'extrémité intérieure de la patte 227 est recourbée de manière à tourner sa convexité contre la surface interne du noyau 210.This crown 226 has an elastic tab 227 cut along two edges substantially parallel to the axis of the housing 213 and connected by a short side, forming a hinge, to the washer 225. The inner end of the tab 227 is curved so as to rotate its convexity against the internal surface of the core 210.

Le passage 211, dont le fond peut être limité par une surface inclinée S servant de rampe pour le guidage de l'introduction de l'âme 212, comme dans le cas du passage 111, traverse radialement la paroi du noyau 210 et débouche dans l'ouverture 213. Pour le montage du dispositif de raccordement, l'âme du câble 202 est dénudée sur une longueur suffisante pour que l'extrémité 212 de cette âme pénètre, suivant une direction sensiblement radiale, dans l'ouverture 213.The passage 211, the bottom of which may be limited by an inclined surface S serving as a ramp for guiding the introduction of the core 212, as in the case of the passage 111, crosses radially the wall of the core 210 and opens into the opening 213. For mounting the connection device, the core of the cable 202 is stripped over a length sufficient for the end 212 of this core to penetrate, in a substantially radial direction, into the opening 213.

L'organe de raccordement 208 (rondelle 225) est ensuite mis en place sur le noyau 210 par intro­duction de la couronne 226 dans l'ouverture 213 de sorte que la partie médiane de la patte 227 provoque le rabattement de l'extrémité 212 de l'âme vers l'intérieur de l'ouverture 213, contre la surface interne de cette ouverture. L'âme 212 est serrée élas­tiquement par la patte 227 contre la paroi du noyau 210.The connection member 208 (washer 225) is then placed on the core 210 by introduction of the crown 226 into the opening 213 so that the middle part of the tab 227 causes the end 212 of the soul towards the inside of the opening 213, against the internal surface of this opening. The core 212 is tightened elastically by the tab 227 against the wall of the core 210.

Dans les exemples de réalisation des figures 2 et 3, une élasticité est prévue à l'extrémité de la languette 126 ou de la patte 227, alors que la paroi d'appui prévue sur le noyau 110 ou 210 est relative­ment rigide.In the exemplary embodiments of FIGS. 2 and 3, an elasticity is provided at the end of the tongue 126 or of the tab 227, while the bearing wall provided on the core 110 or 210 is relatively rigid.

Dans l'exemple de réalisation de la figure 4, on prévoit une certaine élasticité au niveau de la paroi d'appui du manchon 310In the embodiment of Figure 4, there is provided a certain elasticity at the support wall of the sleeve 310

La différence principale entre la réalisation de la figure 4 et celle de la figure 3 provient de ce que la couronne 326 présente un pour­tour continu. Pour éviter l'arrachement de l'extrémité 312 de l'âme lors de l'introduction de la couronne 326 dans l'ouverture 323, on peut donner une certaine élasticité à la partie G de paroi contre laquelle vient s'appuyer cette extrémité 312. Cette élasticité peut être obtenue en prévoyant un évidement 328 en arrière de la paroi G.The main difference between the embodiment of Figure 4 and that of Figure 3 comes from the fact that the ring 326 has a continuous periphery. To avoid tearing of the end 312 of the core during the introduction of the crown 326 into the opening 323, it is possible to give a certain elasticity to the part G of the wall against which this end 312 bears. This elasticity can be obtained by providing a recess 328 behind the wall G.

Selon une autre possibilité, pour éviter un serrage trop important de l'âme 312, on prévoit un dégagement ou évidement sur la zone de la paroi interne du noyau 310 contre laquelle vient s'appliquer l'extrémité 312.According to another possibility, to avoid excessive tightening of the core 312, provision is made for a clearance or recess on the zone of the internal wall of the core 310 against which the end 312 is applied.

La figure 5 montre une embase 421 d'antenne autoradio, munie d'une vis de fixation 422, liée élec­triquement à l'antenne. La vis 422 traverse un trou 423 de la paroi de fixation P ; un manchon isolant M entoure la vis 422 dans la zone traversant la paroi P. La vis 422 traverse également le noyau isolant 410, de manière à pouvoir recevoir, sur son extrémité en sail­lie, un écrou de fixation.FIG. 5 shows a base 421 of the radio antenna, provided with a fixing screw 422, electrically linked to the antenna. Screw 422 passes through a hole 423 of the fixing wall P; an insulating sleeve M surrounds the screw 422 in the zone passing through the wall P. The screw 422 also passes through the insulating core 410, so as to be able to receive, on its projecting end, a fixing nut.

L'organe de raccordement 408 comprend un corps métallique constitué par un renflement lisse 409, cylindrique, solidaire de la vis 422. Ce renfle­ment 409 est propre à serrer l'extrémité 412 de l'âme du câble coaxial contre une partie du noyau 410, formée par la surface interne d un alésage 428 de diamètre légèrement supérieur à celui du renflement 409. L'alésage 428 est situé du côté de l'extrémité 412 opposée à la paroi P, de sorte que cette extrémité 412 se trouve repliée à l'opposé de la paroi P. Des dégagements peuvent être prévus sur la surface interne du noyau 410 pour éviter tout risque d'arrachement de l'extrémité 412 lors du serrage provoqué par l'action de l'écrou sur la vis 422.The connection member 408 comprises a metal body constituted by a smooth, cylindrical bulge 409, integral with the screw 422. This bulge 409 is suitable for clamping the end 412 of the core of the coaxial cable against a part of the core 410, formed by the internal surface of a bore 428 of diameter slightly greater than that of the bulge 409. The bore 428 is located on the side of the end 412 opposite the wall P, so that this end 412 is folded back to the opposite of the wall P. Clearances can be provided on the internal surface of the core 410 to avoid any risk of tearing of the end 412 during tightening caused by the action of the nut on the screw 422.

La figure 6 montre une variante de l'embase de la figure 5 permettant de replier l'extrémité 512 de l'âme du câble coaxial vers la paroi P.Figure 6 shows a variant of the base of Figure 5 for folding the end 512 of the core of the coaxial cable to the wall P.

Le corps métallique 508 est constitué par un écrou 509 encastré dans le noyau 510 et ne pouvant tourner par rapport au noyau en raison d'un moletage extérieur 529. L'écrou 509 comporte un prolongement cylindrique 530, à extrémité arrondie, en direction de la paroi P de manière à replier l'extrémité 512 vers la paroi P, et à serrer cette extrémité 512 contre la surface interne du noyau.The metallic body 508 consists of a nut 509 embedded in the core 510 and which cannot rotate relative to the core due to an external knurling 529. The nut 509 has a cylindrical extension 530, with rounded ends, in the direction of the wall P so as to fold the end 512 towards the wall P, and to clamp this end 512 against the internal surface of the core.

L'embase d'antenne comporte une vis 522, dont seule l'extrémité inférieure est représentée, pouvant tourner librement dans ladite embase. La tête de la vis 522 est de préférence du type à six pans creux.The antenna base includes a screw 522, of which only the lower end is shown, which can rotate freely in said base. The head of the screw 522 is preferably of the hexagon socket type.

La fixation de l'embase sur la paroi P est obtenue en engageant la vis 522 dans l'écrou 509 et en faisant tourner la vis 522 pour assurer le blocage de l'ensemble.The mounting of the base on the wall P is obtained by engaging the screw 522 in the nut 509 and rotating the screw 522 to block the assembly.

Comme indiqué précédemment, avec ou sans élasticité, on peut prévoir un dégagement sur le diamètre interne du noyau, face à la partie repliée de l'âme du câble coaxial pour éviter son arrachement.As indicated above, with or without elasticity, it is possible to provide a clearance on the internal diameter of the core, facing the folded part of the core of the coaxial cable to avoid its tearing.

Quelle que soit la réalisation adoptée, la solution de l'invention permet un montage simple et rapide avec établissement de la liaison électrique entre l'âme du câble coaxial et l'organe de raccorde­ment d'une manière fiable, sans la nécessité d'une soudure.Whatever the embodiment adopted, the solution of the invention allows simple and rapid assembly with establishment of the electrical connection between the core of the coaxial cable and the connection member in a reliable manner, without the need for a welding.

Claims (12)

1. Dispositif de connexion pour un câble coaxial, notamment pour raccorder une antenne à un poste autoradio, comportant : une pièce métallique (4) destinée à être reliée électriquement à la tresse métallique (6) du câble coaxial, cette pièce étant munie d'un appendice tubulaire (7) propre à recevoir une extrémité de ce câble coaxial ; un organe de rac­cordement (8) destiné à être raccordé à l'âme du câble ; et un noyau isolant (10) placé entre la sus­dite pièce métallique (4) et l'organe de raccordement (8), caractérisé par le fait que le susdit noyau iso­lant (10) comporte un passage (11) radial, sensible­ment dans le prolongement de l'appendice tubulaire (7), propre à recevoir une extrémité (12) de l'âme dénudée du câble coaxial, et un logement (13) s'étendant transversalement par rapport à la direction moyenne du susdit appendice, logement (13) dans lequel débouche le passage (11), le susdit organe de rac­cordement (8) comportant une partie propre à s'engager dans le susdit logement (13) et à provoquer ainsi le pliage de l'extrémité (12) de l'âme du câble coaxial et le serrage de cette extrémité repliée contre une surface du noyau de manière à établir la liaison élec­trique entre cette âme et ledit organe de raccordement (8).1. Connection device for a coaxial cable, in particular for connecting an antenna to a car radio station, comprising: a metal part (4) intended to be electrically connected to the metal braid (6) of the coaxial cable, this part being provided with a tubular appendage (7) adapted to receive one end of this coaxial cable; a connection member (8) intended to be connected to the cable core; and an insulating core (10) placed between the said metal part (4) and the connecting member (8), characterized in that the said insulating core (10) has a radial passage (11), substantially in the extension of the tubular appendage (7), suitable for receiving one end (12) of the stripped core of the coaxial cable, and a housing (13) extending transversely relative to the mean direction of the above appendix, housing (13) into which the passage (11) opens, the aforesaid connecting member (8) comprising a part suitable for engaging in the aforesaid housing (13) and thus causing the end (12) of the core of the coaxial cable and the clamping of this folded end against a surface of the core so as to establish the electrical connection between this core and said connecting member (8). 2. Dispositif selon la revendication 1 dans lequel la pièce métallique (4) destinée à être reliée électriquement à la tresse du câble coaxial est formée par une enveloppe (5) cylindrique ou prismatique, à l'intérieur de laquelle est placée le noyau (10) tandis que l'organe de raccordement (8,9) est coaxial à ladite enveloppe (5), caractérisé par le fait que le noyau (10) est traversé axialement par le logement (13) qui débouche à chaque extrémité, et que l'enveloppe métallique (5) comporte un fond (14) muni d'une ouverture (15) permettant d'introduire l'organe de raccordement (8) à travers le fond (14) de cette enveloppe ce qui permet de replier l'âme (12) du câble coaxial du côté opposé au fond (14).2. Device according to claim 1 wherein the metal part (4) intended to be electrically connected to the braid of the coaxial cable is formed by a cylindrical or prismatic envelope (5), inside which is placed the core (10 ) while the connecting member (8, 9) is coaxial with said envelope (5), characterized in that the core (10) is traversed axially by the housing (13) which opens at each end, and that l metal enclosure (5) has a bottom (14) provided an opening (15) making it possible to introduce the connection member (8) through the bottom (14) of this envelope which makes it possible to fold the core (12) of the coaxial cable on the side opposite the bottom (14 ). 3. Dispositif selon la revendication 2, caractérisé par le fait que le fond (14) de l'enveloppe métallique est muni d'une porte (16) propre à fermer l'ouverture (15) après introduction de l'organe de raccordement (8), et pour compléter le blindage, cette enveloppe (5) étant notamment réalisée en tôle découpée ou emboutie.3. Device according to claim 2, characterized in that the bottom (14) of the metal casing is provided with a door (16) suitable for closing the opening (15) after introduction of the connecting member ( 8), and to complete the shielding, this envelope (5) being in particular made of cut or stamped sheet metal. 4. Dispositif selon la revendication 1, caractérisé par le fait que la pièce métallique (104) est constituée par une rondelle prolongée radialement par une cosse (107) de raccordement formant l'appendice tubulaire, cette rondelle (104) étant en appui contre une face transversale plane du noyau iso­lant (110), tandis que l'organe de raccordement (108) est constitué par une autre rondelle (125), en appui contre l'autre face du noyau isolant (110), l'organe de raccordement (108) comprenant au moins une patte (126) rabattue par rapport à son plan moyen, propre à s'engager dans le logement transversal (113) du noyau isolant (110).4. Device according to claim 1, characterized in that the metal part (104) is constituted by a washer extended radially by a connection lug (107) forming the tubular appendage, this washer (104) being in abutment against a flat transverse face of the insulating core (110), while the connecting member (108) consists of another washer (125), bearing against the other face of the insulating core (110), the connecting member ( 108) comprising at least one tab (126) folded back relative to its mean plane, suitable for engaging in the transverse housing (113) of the insulating core (110). 5. Dispositif selon la revendication 4, caractérisé par le fait que le logement transversal (113) est constitué par un évidement prévu dans l'épaisseur de la paroi du noyau et traversé par le susdit passage (111), la languette (126) de l'organe de raccordement (108) étant propre à s'engager dans cet évidement en rabattant l'âme dénudée (112) contre la paroi de cet évidement (113) et en exerçant une pression contre cette âme.5. Device according to claim 4, characterized in that the transverse housing (113) is constituted by a recess provided in the thickness of the wall of the core and crossed by the above passage (111), the tongue (126) of the connecting member (108) being adapted to engage in this recess by folding the stripped core (112) against the wall of this recess (113) and by exerting pressure against this core. 6. Dispositif selon la revendication 5, caractérisé par le fait que l'un des deux éléments constitués par la languette (126) ou la paroi de l'évidement (113) contre laquelle l'âme dénudée s'appuie, présente une élasticité, favorable à l'établissement du contact électrique.6. Device according to claim 5, characterized in that one of the two elements constituted by the tongue (126) or the wall of the recess (113) against which the exposed core rests, has an elasticity, favorable to the establishment of electrical contact. 7. Dispositif selon la revendication 5, caractérisé par le fait que le logement transversal est constitué par l'ouverture centrale (213,313) du noyau (210,310), le traversant de part en part, tandis que l'organe de raccordement (208,308) comporte une rondelle (225,325) munie sur son bord interne d'une couronne rabattue (226,326) propre à s'engager dans l'ouverture (213, 313) du noyau en venant replier l'extrémité (212, 312) de l'âme dénudée du câble et établir la liaison électrique.7. Device according to claim 5, characterized in that the transverse housing is formed by the central opening (213,313) of the core (210,310), passing right through, while the connecting member (208,308) comprises a washer (225,325) provided on its internal edge with a folded crown (226,326) suitable for engaging in the opening (213, 313) of the core by folding the end (212, 312) of the stripped core of the cable and establish the electrical connection. 8. Dispositif selon la revendication 7, caractérisé par le fait que la couronne (226) comporte une patte élastique (227) découpée, propre à établir le contact avec l'âme (212) du câble coaxial.8. Device according to claim 7, characterized in that the crown (226) comprises an elastic tab (227) cut out, suitable for establishing contact with the core (212) of the coaxial cable. 9. Dispositif selon la revendication 7, caractérisé par le fait que la couronne (326) présente un pourtour continu, tandis qu'une élasticité des com­posants (G) et/ou un dégagement approprié sont prévus pour permettre un serrage de l'âme (312) du câble, sans arrachement.9. Device according to claim 7, characterized in that the crown (326) has a continuous periphery, while an elasticity of the components (G) and / or an appropriate clearance are provided to allow a tightening of the core ( 312) of the cable, without tearing. 10. Dispositif de connexion selon la reven­dication 1 pour une embase d'antenne autoradio destinée à être montée sur une paroi (P), une vis de fixation (422, 522) étant prévue pour le montage de l'embase sur la paroi, cette vis traversant le noyau isolant (410, 510), caractérisé par le fait que l'organe de raccordement (408, 508) comprend un corps métallique (409, 509) lié à la vis, propre à serrer l'âme (412, 512) du câble coaxial contre une partie du noyau (410, 510).10. Connection device according to claim 1 for a radio antenna base intended to be mounted on a wall (P), a fixing screw (422, 522) being provided for mounting the base on the wall, this screw passing through the insulating core (410, 510), characterized in that the connection member (408, 508) comprises a metal body (409, 509) linked to the screw, suitable for tightening the core (412, 512 ) of the coaxial cable against a part of the core (410, 510). 11. Dispositif selon la revendication 10, caractérisé par le fait que le corps métallique (409) est solidaire de la vis (422) et est constitué par un renflement lisse de cette tige de vis.11. Device according to claim 10, characterized in that the metal body (409) is integral with the screw (422) and is constituted by a smooth bulge of this screw rod. 12. Dispositif selon la revendication 10, caractérisé par le fait que le corps métallique (509) est constitué par un écrou encastré dans le noyau (510) et dans lequel peut se visser la vis (522) montée rotative dans l'embase.12. Device according to claim 10, characterized in that the metal body (509) consists of a nut embedded in the core (510) and into which can be screwed the screw (522) rotatably mounted in the base.
EP90400947A 1989-05-17 1990-04-06 Connection device for a coaxial cable, particularly for connecting an antenna to a car radio Withdrawn EP0398770A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8906425 1989-05-17
FR8906425A FR2647270B1 (en) 1989-05-17 1989-05-17 CONNECTION DEVICE FOR A COAXIAL CABLE, PARTICULARLY FOR CONNECTING AN ANTENNA TO A RADIO STATION

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EP0398770A1 true EP0398770A1 (en) 1990-11-22

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EP90400947A Withdrawn EP0398770A1 (en) 1989-05-17 1990-04-06 Connection device for a coaxial cable, particularly for connecting an antenna to a car radio

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FR (1) FR2647270B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2733368A1 (en) * 1995-04-24 1996-10-25 Whitaker Corp COLLAR FOR CABLE SHIELD
US7273394B1 (en) 2005-11-17 2007-09-25 Yazaki North America, Inc. Right angle coaxial connector
CN113067182A (en) * 2021-03-30 2021-07-02 福建微波通通信技术有限公司 Radio frequency coaxial cable connector and cable thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2342427A1 (en) * 1973-08-22 1975-03-06 Siemens Ag Coaxial elbow plug with simple cable conductor connection - has ring spring inner conductor contact and slide outer conductor contact
US4813888A (en) * 1986-10-15 1989-03-21 Matsushita Electric Works, Ltd. High-frequency cable connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2342427A1 (en) * 1973-08-22 1975-03-06 Siemens Ag Coaxial elbow plug with simple cable conductor connection - has ring spring inner conductor contact and slide outer conductor contact
US4813888A (en) * 1986-10-15 1989-03-21 Matsushita Electric Works, Ltd. High-frequency cable connector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2733368A1 (en) * 1995-04-24 1996-10-25 Whitaker Corp COLLAR FOR CABLE SHIELD
US7273394B1 (en) 2005-11-17 2007-09-25 Yazaki North America, Inc. Right angle coaxial connector
CN113067182A (en) * 2021-03-30 2021-07-02 福建微波通通信技术有限公司 Radio frequency coaxial cable connector and cable thereof
CN113067182B (en) * 2021-03-30 2022-11-01 福建微波通通信技术有限公司 Radio frequency coaxial cable connector and cable thereof

Also Published As

Publication number Publication date
FR2647270A1 (en) 1990-11-23
FR2647270B1 (en) 1993-01-29

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