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EP0347278A1 - Base for fastening an antenna onto a wall and abutment piece for the base - Google Patents

Base for fastening an antenna onto a wall and abutment piece for the base Download PDF

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Publication number
EP0347278A1
EP0347278A1 EP89401527A EP89401527A EP0347278A1 EP 0347278 A1 EP0347278 A1 EP 0347278A1 EP 89401527 A EP89401527 A EP 89401527A EP 89401527 A EP89401527 A EP 89401527A EP 0347278 A1 EP0347278 A1 EP 0347278A1
Authority
EP
European Patent Office
Prior art keywords
wall
stop
groove
antenna base
opening
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.)
Granted
Application number
EP89401527A
Other languages
German (de)
French (fr)
Other versions
EP0347278B1 (en
Inventor
Raymond Caillot
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 EP0347278A1 publication Critical patent/EP0347278A1/en
Application granted granted Critical
Publication of EP0347278B1 publication Critical patent/EP0347278B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • H01Q1/1214—Supports; Mounting means for fastening a rigid aerial element through a wall

Definitions

  • the invention relates to an antenna base intended to allow the fixing of an antenna, in particular for a radio station, on a wall, in particular curved, said base being of the type of those which include a clean threaded rod to pass through.
  • a hole provided in the wall a stop having an opening traversed by the rod and suitable for bearing against the wall, and clamping means provided on the side of the wall opposite the stop to exert traction on the threaded rod and apply the stop of the base against the wall, the stop of the base comprising, on its face turned towards the wall, a groove extending on either side of the opening provided in the stop and opening into said opening .
  • the conditions under which the stop abuts against the wall are not always satisfactory, in particular when it is a motor vehicle roof wall which has a significant curvature at least in a longitudinal direction. This generally results in an uncertain support with the possibility of a slight tilting, and possibly an undesirable deformation of the wall on which the base is fixed.
  • FR-A-2 575 979 which relates to a base of this type provides, when the wall is curved, to give the face of the base facing the wall a conjugate shape of the profile so that the bearing means bear over their entire surface against the wall.
  • This solution while being advantageous, has the drawback of requiring a type of base for each type of curved wall. In addition, it is difficult to ensure contact over an entire surface and support risks being carried out in an uncertain manner.
  • US-A-2 946 842 describes an antenna fixing device in which the base is pressed against the fixing wall by a cushion made of rubber material. On the side of the wall opposite the base, the clamping means bear against the wall, by means of a part with a U-shaped cross section. The above clamping means are pivotally connected to the wings of the U-shaped parts. This pivoting assembly combined with the elasticity of the base cushion creates a slight possibility of tilting the base and an uncertain support.
  • the object of the invention is, above all, to provide an antenna base of the kind defined above which meets better than hitherto the various requirements of practice and which, in particular, makes it possible to obtain a stable support against the wall of fixing, even if this wall is curved, and this in a simple and economical manner.
  • an antenna base intended to allow the attachment of an antenna to a wall, in particular curved, in particular the roof of a motor vehicle, of the kind defined above, is characterized in that said groove is deep enough for the abutment to rest on the wall, even if this wall is curved, takes place in four zones located on the edges of the groove, which has a width such that said zones are sufficiently spaced to ensure good stability of the fixing of the antenna base on the wall.
  • the four zones are located either at the interior intersections of the edges of the groove with the edge of the opening provided in the stop, or at the exterior intersections with the outline of the stop. depending on whether the wall is convex or concave.
  • the said groove is preferably oriented transversely to the direction of greater curvature.
  • the direction of greatest curvature is generally the longitudinal direction of the vehicle and the groove is preferably oriented orthogonally to this longitudinal direction.
  • the stopper is advantageously made of hard plastic material not subject to creep; the base can be molded onto the stop, or the stop can be attached to the base.
  • the antenna base includes a metal core, for example of light alloy or stainless steel; the stop, in particular in the form of a washer, is sandwiched between the metal body of the antenna base and the metal wall, in particular the sheet metal of an automobile body.
  • the stop may include tabs projecting radially inwards into the opening of said stop to exert a clamping action on the core of the base and guiding by cooperation with complementary means (flat, spike, etc.) provided on the metal core or on plastic parts integral with this core.
  • the width of the groove is preferably at least equal to 5 mm while its depth is at least equal to the value of the arrow of the curve of the wall located between the contact points, increased by a minimum clearance.
  • the invention also relates to a stop, in particular for an antenna base, as defined above, said stop comprising, on its face intended to be turned towards the fixing wall, a groove extending on either side of the opening provided in the stop for the passage of the threaded rod, this groove being deep enough for the support to be carried out in four zones located on the edges of the groove, which is wide enough for these zones to be sufficiently spaced to ensure good stability of fixation.
  • an antenna base 1 intended to allow the attachment of an antenna, in particular for a radio station, on a curved wall 2, constituted in particular by the roof of a motor vehicle.
  • the base 1 comprises a metal core 3, in particular of light alloy, for example of zamak, coated with an envelope 4 of relatively flexible material.
  • the core 3 could be made in another metal, for example stainless steel.
  • a threaded rod 5 is fixed in the core 3 and projects outwards so that it can pass through a hole provided in the wall 2.
  • the rod 5 is substantially orthogonal to said wall.
  • a sleeve 6 of the casing 4 also passes through the hole in the wall, and surrounds part of the rod 5.
  • a stop 7 is provided under the base 1 to bear against the wall 2.
  • the stop 7 has an opening 8 through which the rod 5 passes.
  • Clamping means S generally comprising a nut, are provided on the side of the wall 2 opposite the stop 7 to exert traction on the threaded rod and apply the stop and the base against the wall.
  • the tightening torque on all of these parts remains as constant as possible.
  • the stop 7 of the base comprises, on its face intended to be turned towards the wall 6, a groove 9 which extends on either side of the opening 8 and is divided into two parts by this opening.
  • the stop 7 is advantageously formed by a flat part, in particular an annular one, comprising the circular central opening 8; preferably, the two parts of the groove 9 are diametrically opposite, the mean line of this groove being formed by a diameter of the stop 7.
  • the groove 9 has a depth h (FIG. 2) sufficient for the support of the stop 7 on the wall 2 to be effected in four zones A, B, C, D or A ', B', C ', D' ( Figure 3) located on the edges of groove 9.
  • the deflection of the part of the curved wall 2 included between the edges of the groove 9 is less than the depth h so that the wall 2 does not come into contact with the bottom 10 of the groove (see FIG. 4 ).
  • the four support zones are located at the intersections A, B, C, D of the edges of the groove 9 with the edge of the opening 8.
  • the four zones are located at the intersections A ', B', C ', D' with the outline of the stop 7.
  • edges 9a of the groove intended to bear against the wall 2 are rounded as shown in Figure 2, to improve the coverage.
  • This groove 9 has a width L such that the zones A, B, C, D or A ', B', C ', D' are sufficiently spaced to ensure good stability of the fixing of the antenna base 1 on the wall 2, despite the curvature of this wall.
  • This width L is preferably of the order of 5 mm or more.
  • the groove 9 is preferably oriented substantially orthogonally to this longitudinal direction.
  • the stop 7 is made of hard plastic material not subject to creep.
  • the base 1, in particular the casing 4 of this base, can be molded onto said stop 7.
  • the stop 7 can be added under the base.
  • the stop 7 can have tabs 11, projecting radially inwards into the opening 8, suitable for exerting a clamping on a sleeve 12 (FIG. 1) of the core 3 of the base and guidance by cooperating with additional means, for example a flat, not shown.
  • the stop 7 may comprise, on the side opposite to the groove 9, projections 13, orthogonal to the mean plane of the stop, suitable for serving as orientation tabs on the core 3. In a zone substantially diametrically opposite to these tabs. orientation 13, the stop may include a hole 14 for orientation in the overmolding mold.
  • the stop 7 according to the invention ensures support of the base on the wall 6 in good conditions, even if the radius of curvature of the wall 6 is relatively small, for example of the order of 150 mm .
  • the stability of the base 1, once fixed, is satisfactory, and the deformations at the level of the wall 2 are reduced.

Landscapes

  • Support Of Aerials (AREA)

Abstract

The antenna base (1) comprises a threaded rod (5) suitable to pass through a hole provided in the wall (2), an abutment (7) comprising an aperture (8) passed through by the rod (5) and suitable to bear up against the wall (2), and gripping means (S) to exert a traction on the threaded rod (5) and apply the abutment (7) of the base against the wall. The abutment (7) comprises, on its face turned towards the wall, a groove (9) extending on either side of the aperture (8) and opening into the said aperture, this groove (9) being sufficiently deep for the bearing of the abutment (7) on the wall (2), even if this wall is radiused, to occur in four zones situated on the edges of the groove (9), which groove has a width (L) such that the said zones are sufficiently separated to ensure good stability of the mounting of the antenna base on the wall. <IMAGE>

Description

L'invention est relative à une embase d'antenne destinée à permettre la fixation d'une antenne, en particulier pour un poste autoradio, sur une paroi, notamment bombée, ladite embase étant du genre de celles qui comportent une tige filetée propre à traverser un trou prévu dans la paroi, une butée comportant une ouverture traversée par la tige et propre à prendre appui contre la paroi, et des moy­ens de serrage prévus du côté de la paroi opposé à la butée pour exercer une traction sur la tige filetée et appliquer la butée de l'embase contre la paroi, la butée de l'embase comportant, sur sa face tournée vers la paroi, une rainure s'étendant de part et d'autre de l'ouverture prévue dans la butée et débouchant dans ladite ouverture.The invention relates to an antenna base intended to allow the fixing of an antenna, in particular for a radio station, on a wall, in particular curved, said base being of the type of those which include a clean threaded rod to pass through. a hole provided in the wall, a stop having an opening traversed by the rod and suitable for bearing against the wall, and clamping means provided on the side of the wall opposite the stop to exert traction on the threaded rod and apply the stop of the base against the wall, the stop of the base comprising, on its face turned towards the wall, a groove extending on either side of the opening provided in the stop and opening into said opening .

Dans les embases d'antenne utilisées jusqu'à ce jour, les conditions dans lesquelles la butée vient s'appuyer contre la paroi ne sont pas toujours satis­faisantes, notamment lorsqu'il s'agit d'une paroi de toit de véhicule automobile qui présente une courbure non négligeable au moins suivant une direction longi­tudinale. Il en résulte, généralement, un appui incer­tain avec possibilité d'un léger basculement, et éven­tuellement une déformation indésirable de la paroi sur laquelle l'embase est fixée.In the antenna bases used to date, the conditions under which the stop abuts against the wall are not always satisfactory, in particular when it is a motor vehicle roof wall which has a significant curvature at least in a longitudinal direction. This generally results in an uncertain support with the possibility of a slight tilting, and possibly an undesirable deformation of the wall on which the base is fixed.

FR-A-2 575 979 qui concerne une embase de ce type prévoit, lorsque la paroi est bombée, de donner à la face de l'embase tournée vers la paroi une forme conjuguée du profil de telle sorte que les moyens d'appui portent sur toute leur surface contre la paroi. Cette solution, tout en étant intéressante, a pour inconvénient de nécessiter un type d'embase pour chaque type de paroi bombée. En outre, il est difficile d'assurer un contact sur toute une surface et l'appui risque de se réaliser de manière incer­taine.FR-A-2 575 979 which relates to a base of this type provides, when the wall is curved, to give the face of the base facing the wall a conjugate shape of the profile so that the bearing means bear over their entire surface against the wall. This solution, while being advantageous, has the drawback of requiring a type of base for each type of curved wall. In addition, it is difficult to ensure contact over an entire surface and support risks being carried out in an uncertain manner.

US-A-2 946 842 décrit un dispositif de fixa­tion d'antenne dans lequel l'embase est en appui con­tre la paroi de fixation par un coussin en matière caoutchouteuse. Du côté de la paroi opposé à l'embase, les moyens de serrage prennent appui, contre la paroi, par l'intermédiaire d'une pièce à section transversale en U. Les susdits moyens de serrage sont reliés de manière pivotante aux ailes de la pièces en U. Ce mon­tage pivotant combiné avec l'élasticité du coussin de l'embase crée une légère possibilité de basculement de l'embase et un appui incertain.US-A-2 946 842 describes an antenna fixing device in which the base is pressed against the fixing wall by a cushion made of rubber material. On the side of the wall opposite the base, the clamping means bear against the wall, by means of a part with a U-shaped cross section. The above clamping means are pivotally connected to the wings of the U-shaped parts. This pivoting assembly combined with the elasticity of the base cushion creates a slight possibility of tilting the base and an uncertain support.

L'invention a pour but, surtout, de fournir une embase d'antenne du genre défini précédemment qui réponde mieux que jusqu'à présent aux diverses exi­gences de la pratique et qui, en particulier, permette d'obtenir un appui stable contre la paroi de fixation, même si cette paroi est bombée, et cela d'une manière simple et économique.The object of the invention is, above all, to provide an antenna base of the kind defined above which meets better than hitherto the various requirements of practice and which, in particular, makes it possible to obtain a stable support against the wall of fixing, even if this wall is curved, and this in a simple and economical manner.

Selon l'invention, une embase d'antenne destinée à permettre la fixation d'une antenne sur une paroi, notamment bombée, en particulier le toit d'un véhicule automobile, du genre défini précédemment, est caractérisée par le fait que ladite rainure est suf­fisamment profonde pour que l'appui de la butée sur la paroi, même si cette paroi est bombée, s'effectue en quatre zones située sur les bords de la rainure, laquelle a une largeur telle que lesdites zones sont suffisamment espacées pour assurer une bonne stabilité de la fixation de l'embase d'antenne sur la paroi.According to the invention, an antenna base intended to allow the attachment of an antenna to a wall, in particular curved, in particular the roof of a motor vehicle, of the kind defined above, is characterized in that said groove is deep enough for the abutment to rest on the wall, even if this wall is curved, takes place in four zones located on the edges of the groove, which has a width such that said zones are sufficiently spaced to ensure good stability of the fixing of the antenna base on the wall.

Les quatre zones sont situées soit aux intersections intérieures des bords de la rainure avec le bord de l'ouverture prévue dans la butée, soit aux intersections extérieures avec le contour de la butée selon que la paroi est convexe ou concave.The four zones are located either at the interior intersections of the edges of the groove with the edge of the opening provided in the stop, or at the exterior intersections with the outline of the stop. depending on whether the wall is convex or concave.

Dans le cas d'une paroi présentant une dou­ble courbure, suivant deux directions sensiblement orthogonales, la courbure suivant une direction dite principale étant supérieure à la courbure suivant l'autre direction, la susdite rainure est orientée, de préférence, transversalement à la direction de plus forte courbure.In the case of a wall having a double curvature, in two substantially orthogonal directions, the curvature in a so-called main direction being greater than the curvature in the other direction, the said groove is preferably oriented transversely to the direction of greater curvature.

Dans le cas d'un toit de véhicule automo­bile, la direction de plus forte courbure est généralement la direction longitudinale du véhicule et la rainure est de préférence orientée orthogonalement à cette direction longitudinale.In the case of a motor vehicle roof, the direction of greatest curvature is generally the longitudinal direction of the vehicle and the groove is preferably oriented orthogonally to this longitudinal direction.

La butée est avantageusement réalisée en matière plastique dure non sujette au fluage ; l'embase peut être surmoulée sur la butée, ou la butée peut être rapportée sur l'embase.The stopper is advantageously made of hard plastic material not subject to creep; the base can be molded onto the stop, or the stop can be attached to the base.

Généralement, l'embase d'antenne comporte un noyau métallique, par exemple en alliage léger ou en acier inoxydable ; la butée, en particulier en forme de rondelle, est prise en sandwich entre le corps métallique de l'embase d'antenne et la paroi métallique, notamment la tôle d'une carrosserie d'automobile. La butée peut comporter des pattes faisant saillie radialement vers l'intérieur dans l'ouverture de ladite butée pour exercer un serrage sur le noyau de l'embase et un guidage par coopération avec un moyen complémentaire (méplat, picot...) prévu sur le noyau métallique ou sur des parties en matière plastique solidaires de ce noyau.Generally, the antenna base includes a metal core, for example of light alloy or stainless steel; the stop, in particular in the form of a washer, is sandwiched between the metal body of the antenna base and the metal wall, in particular the sheet metal of an automobile body. The stop may include tabs projecting radially inwards into the opening of said stop to exert a clamping action on the core of the base and guiding by cooperation with complementary means (flat, spike, etc.) provided on the metal core or on plastic parts integral with this core.

La largeur de la rainure est de préférence au moins égale à 5 mm tandis que sa profondeur est au moins égale à la valeur de la flèche de la courbe de la paroi située entre les points de contact, augmentée d'un jeu minimum.The width of the groove is preferably at least equal to 5 mm while its depth is at least equal to the value of the arrow of the curve of the wall located between the contact points, increased by a minimum clearance.

L'invention est également relative à une butée, notamment pour une embase d'antenne, telle que définie précédemment, ladite butée comportant, sur sa face destinée à être tournée vers la paroi de fixa­tion, une rainure s'étendant de part et d'autre de l'ouverture prévue dans la butée pour le passage de la tige filetée, cette rainure étant suffisamment pro­fonde pour que l'appui s'effectue en quatre zones situées sur les bords de la rainure, laquelle est assez large pour que ces zones soient suffisamment espacées pour assurer une bonne stabilité de la fixa­tion.The invention also relates to a stop, in particular for an antenna base, as defined above, said stop comprising, on its face intended to be turned towards the fixing wall, a groove extending on either side of the opening provided in the stop for the passage of the threaded rod, this groove being deep enough for the support to be carried out in four zones located on the edges of the groove, which is wide enough for these zones to be sufficiently spaced to ensure good stability of fixation.

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 d'un mode de réalisation particulier décrit avec référence aux dessins ci-­annexés, mais qui n'est nullement limitatif.

  • La figure 1, de ces dessins, est une coupe verticale d'une embase d'antenne conforme à l'invention, avec parties arrachées.
  • La figure 2 est une coupe suivant la ligne II-II figure 3 de la butée de l'embase d'antenne.
  • La figure 3 est une vue de dessous de la butée.
  • La figure 4, enfin, est une vue schématique de profil, à plus grande échelle, de la rainure de la butée, coopérant avec une paroi bombée de fixation.
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 a particular embodiment described with reference to the attached drawings, but which is in no way limiting.
  • Figure 1 of these drawings is a vertical section of an antenna base according to the invention, with parts cut away.
  • Figure 2 is a section along line II-II Figure 3 of the stop of the antenna base.
  • Figure 3 is a bottom view of the stop.
  • Figure 4, finally, is a schematic side view, on a larger scale, of the groove of the stopper, cooperating with a convex fixing wall.

En se reportant à la figure 1 des dessins, on peut voir une embase d'antenne 1 destinée à permet­tre la fixation d'une antenne, en particulier pour un poste autoradio, sur une paroi 2 bombée, constituée en particulier par le toit d'un véhicule automobile.Referring to Figure 1 of the drawings, one can see an antenna base 1 intended to allow the attachment of an antenna, in particular for a radio station, on a curved wall 2, constituted in particular by the roof of a motor vehicle.

L'embase 1 comporte un noyau 3 métallique, notamment en alliage léger, par exemple en zamak, enrobé d'une enveloppe 4 en matière relativement sou­ple. Le noyau 3 pourrait être réalisé en un autre métal, par exemple en acier inoxydable. Une tige filetée 5 est fixée dans le noyau 3 et fait saillie vers l'extérieur de manière à pouvoir traverser un trou prévu dans la paroi 2. La tige 5 est sensiblement orthogonale à ladite paroi. Un manchon 6 de l'enveloppe 4 traverse également le trou de la paroi, et entoure une partie de la tige 5.The base 1 comprises a metal core 3, in particular of light alloy, for example of zamak, coated with an envelope 4 of relatively flexible material. The core 3 could be made in another metal, for example stainless steel. A threaded rod 5 is fixed in the core 3 and projects outwards so that it can pass through a hole provided in the wall 2. The rod 5 is substantially orthogonal to said wall. A sleeve 6 of the casing 4 also passes through the hole in the wall, and surrounds part of the rod 5.

Une butée 7 est prévue sous l'embase 1 pour prendre appui contre la paroi 2. La butée 7 comporte une ouverture 8 traversée par la tige 5.A stop 7 is provided under the base 1 to bear against the wall 2. The stop 7 has an opening 8 through which the rod 5 passes.

Des moyens de serrage S, comprenant généralement un écrou, sont prévus du côté de la paroi 2 opposé à la butée 7 pour exercer une traction sur la tige filetée et appliquer la butée et l'embase contre la paroi.Clamping means S, generally comprising a nut, are provided on the side of the wall 2 opposite the stop 7 to exert traction on the threaded rod and apply the stop and the base against the wall.

La butée 7, en matière dure, non sujette au fluage, est serrée entre le noyau 3 et la paroi 2, c'est-à-dire entre deux pièces métalliques, non sujettes au fluage elles aussi. Le couple de serrage sur l'ensemble de ces pièces reste le plus constant possible.The stop 7, made of hard material, not subject to creep, is clamped between the core 3 and the wall 2, that is to say between two metal parts, also not subject to creep. The tightening torque on all of these parts remains as constant as possible.

Comme bien visible sur les figures 2 et 3, la butée 7 de l'embase comporte, sur sa face destinée à être tournée vers la paroi 6, une rainure 9 qui s'étend de part et d'autre de l'ouverture 8 et est divisée en deux parties par cette ouverture.As clearly visible in FIGS. 2 and 3, the stop 7 of the base comprises, on its face intended to be turned towards the wall 6, a groove 9 which extends on either side of the opening 8 and is divided into two parts by this opening.

La butée 7 est avantageusement formée par une pièce plate, notamment annulaire, comportant l'ouverture centrale 8 circulaire ; de préférence, les deux parties de la rainure 9 sont diamétralement opposées, la ligne moyenne de cette rainure étant formée par un diamètre de la butée 7.The stop 7 is advantageously formed by a flat part, in particular an annular one, comprising the circular central opening 8; preferably, the two parts of the groove 9 are diametrically opposite, the mean line of this groove being formed by a diameter of the stop 7.

La rainure 9 a une profondeur h (figure 2) suffisante pour que l'appui de la butée 7 sur la paroi 2 s'effectue en quatre zones A, B, C, D ou A', B', C', D' (figure 3) situées sur les bords de la rainure 9. Autrement dit, la flèche de la partie de la paroi bombée 2 comprise entre les bord de la rainure 9 est inférieure à la profondeur h de telle sorte que la paroi 2 ne vient pas en contact avec le fond 10 de la rainure (voir figure 4).The groove 9 has a depth h (FIG. 2) sufficient for the support of the stop 7 on the wall 2 to be effected in four zones A, B, C, D or A ', B', C ', D' (Figure 3) located on the edges of groove 9. In other words, the deflection of the part of the curved wall 2 included between the edges of the groove 9 is less than the depth h so that the wall 2 does not come into contact with the bottom 10 of the groove (see FIG. 4 ).

Dans le cas où la paroi 2 est convexe vers l'extérieur, les quatre zones d'appui sont situées aux intersections A, B, C, D des bords de la rainure 9 avec le bord de l'ouverture 8. Dans le cas où la paroi 2 est concave vers l'extérieur, les quatre zones sont situées aux intersections A', B', C', D' avec le con­tour de la butée 7.In the case where the wall 2 is convex towards the outside, the four support zones are located at the intersections A, B, C, D of the edges of the groove 9 with the edge of the opening 8. In the case where the wall 2 is concave towards the outside, the four zones are located at the intersections A ', B', C ', D' with the outline of the stop 7.

Les arêtes 9a de la rainure, destinées à venir en appui contre la paroi 2, sont arrondies comme visible sur la figure 2, pour améliorer la portée.The edges 9a of the groove, intended to bear against the wall 2, are rounded as shown in Figure 2, to improve the coverage.

Cette rainure 9 a une largeur L telle que les zones A, B, C, D ou A', B', C', D' soient suf­fisamment espacées pour assurer une bonne stabilité de la fixation de l'embase d'antenne 1 sur la paroi 2, malgré la courbure de cette paroi.This groove 9 has a width L such that the zones A, B, C, D or A ', B', C ', D' are sufficiently spaced to ensure good stability of the fixing of the antenna base 1 on the wall 2, despite the curvature of this wall.

Cette largeur L est de préférence de l'ordre de 5 mm ou plus. Dans le cas d'un toit de véhicule qui présente une courbure principale plus importante suivant la direction longitudinale du véhicule, la rainure 9 est orientée de préférence sensiblement orthogonalement à cette direction longitudinale.This width L is preferably of the order of 5 mm or more. In the case of a vehicle roof which has a greater main curvature in the longitudinal direction of the vehicle, the groove 9 is preferably oriented substantially orthogonally to this longitudinal direction.

La butée 7 est réalisée en matière plastique dure non sujette au fluage. L'embase 1, notamment l'enveloppe 4 de cette embase, peut être surmoulée sur ladite butée 7. En variante, la butée 7 peut être rapportée sous l'embase. Comme visible sur la figure 3, la butée 7 peut comporter des pattes 11, faisant saillie radialement vers l'intérieur dans l'ouverture 8, propres à exercer un serrage sur un manchon 12 (figure 1) du noyau 3 de l'embase et un guidage en coopérant avec un moyen complémentaire, par exemple un méplat, non représenté.The stop 7 is made of hard plastic material not subject to creep. The base 1, in particular the casing 4 of this base, can be molded onto said stop 7. As a variant, the stop 7 can be added under the base. As can be seen in FIG. 3, the stop 7 can have tabs 11, projecting radially inwards into the opening 8, suitable for exerting a clamping on a sleeve 12 (FIG. 1) of the core 3 of the base and guidance by cooperating with additional means, for example a flat, not shown.

La butée 7 peut comporter, du côté opposé à la rainure 9, des saillies 13, orthogonales au plan moyen de la butée, propres à servir de pattes d'orientation sur le noyau 3. Dans une zone sensible­ment diamétralement opposée à ces pattes d'orientation 13, la butée peut comporter un trou 14 pour l'orientation dans le moule de surmoulage.The stop 7 may comprise, on the side opposite to the groove 9, projections 13, orthogonal to the mean plane of the stop, suitable for serving as orientation tabs on the core 3. In a zone substantially diametrically opposite to these tabs. orientation 13, the stop may include a hole 14 for orientation in the overmolding mold.

La butée 7 conforme à l'invention permet d'assurer un appui de l'embase sur la paroi 6 dans de bonnes conditions, même si le rayon de courbure de la paroi 6 est relativement faible, par exemple de l'ordre de 150 mm. La stabilité de l'embase 1, une fois fixée, est satisfaisante, et les déformations au niveau de la paroi 2 sont réduites.The stop 7 according to the invention ensures support of the base on the wall 6 in good conditions, even if the radius of curvature of the wall 6 is relatively small, for example of the order of 150 mm . The stability of the base 1, once fixed, is satisfactory, and the deformations at the level of the wall 2 are reduced.

Claims (10)

1. Embase d'antenne destinée à permettre la fixation d'une antenne, en particulier pour un poste autoradio, sur une paroi, notamment bombée, et compor­tant une tige filetée propre à traverser un trou prévu dans la paroi, une butée comportant une ouverture traversée par la tige et propre à prendre appui contre la paroi, et des moyens de serrage prévus du côté de la paroi opposé à la butée pour exercer une traction sur la tige filetée et appliquer la butée de l'embase contre la paroi, la butée de l'embase comportant, sur sa face tournée vers la paroi, une rainure s'étendant de part et d'autre de l'ouverture prévue dans la butée et débouchant dans ladite ouverture, caractérisée par le fait que cette rainure (9) est suffisamment pro­fonde pour que l'appui de la butée (7) sur la paroi (2), même si cette paroi est bombée, s'effectue en quatre zones (A, B, C, D) ou (A', B', C', D') situées sur les bords de la rainure (9), laquelle a une lar­geur (L) telle que lesdites zones sont suffisamment espacées pour assurer une bonne stabilité de la fixa­tion de l'embase d'antenne sur la paroi.1. Antenna base intended to allow the attachment of an antenna, in particular for a radio station, on a wall, in particular curved, and comprising a threaded rod suitable for passing through a hole provided in the wall, a stop comprising an opening crossed by the rod and adapted to bear against the wall, and clamping means provided on the side of the wall opposite the stop to exert traction on the threaded rod and apply the stop of the base against the wall, the stop of the base comprising, on its face turned towards the wall, a groove extending on either side of the opening provided in the stop and opening into said opening, characterized in that this groove (9) is deep enough for the support of the stop (7) on the wall (2), even if this wall is curved, to be carried out in four zones (A, B, C, D) or (A ', B', C ', D') located on the edges of the groove (9), which has a width (L) such that said zones are sufficiently spaced to ensure good stability of the fixing of the antenna base on the wall. 2. Embase d'antenne selon la revendication 1, caractérisée par le fait que les quatre zones sont situées soit aux intersections intérieures (A, B, C, D) des bords de la rainure avec le bord de l'ouverture (8) prévue dans la butée, soit aux intersections extérieures (A', B', C', D') avec le contour de la butée, selon que la paroi (2) est convexe ou concave.2. antenna base according to claim 1, characterized in that the four zones are located either at the interior intersections (A, B, C, D) of the edges of the groove with the edge of the opening (8) provided in the stop, either at the external intersections (A ', B', C ', D') with the outline of the stop, depending on whether the wall (2) is convex or concave. 3. Embase d'antenne selon la revendication 1 ou 2, caractérisée par le fait que la butée (7) est réalisée en matière plastique dure non sujette au flu­age.3. antenna base according to claim 1 or 2, characterized in that the stop (7) is made of hard plastic material not subject to creep. 4. Embase d'antenne selon la revendication 3 comportant un noyau métallique, caractérisée par le fait que la butée (7) est serrée entre le noyau (3) et la paroi (2), c'est-à-dire entre deux pièces non sujettes au fluage.4. antenna base according to claim 3 comprising a metal core, characterized in that the stop (7) is clamped between the core (3) and the wall (2), that is to say between two parts not subject to creep. 5. Embase d'antenne selon l'une des revendi­cations précédentes comprenant un noyau métallique, caractérisée par le fait que la butée (7) comporte des pattes (11) faisant saillie radialement vers l'intérieur dans l'ouverture (8) de ladite butée pour exercer un serrage sur le noyau de l'embase et un guidage.5. Antenna base according to one of the preceding claims comprising a metal core, characterized in that the stop (7) has tabs (11) projecting radially inward into the opening (8) of said stop to exert a clamping on the core of the base and a guide. 6. Embase d'antenne selon l'une des revendi­cations précédentes, caractérisée par le fait que la largeur (L) de la rainure (9) est au moins égale à 5 mm.6. antenna base according to one of the preceding claims, characterized in that the width (L) of the groove (9) is at least equal to 5 mm. 7. Embase d'antenne selon l'une des revendi­cations précédentes, caractérisée par le fait que sa profondeur (h) est au moins égale à la valeur de la flèche de la courbe de la paroi (2) située entre les points de contact, augmentée d'un jeu minimum.7. antenna base according to one of the preceding claims, characterized in that its depth ( h ) is at least equal to the value of the arrow in the curve of the wall (2) located between the contact points, increased by a minimum clearance. 8. Embase d'antenne selon l'une des revendi­cations précédentes, caractérisée par le fait qu'elle est surmoulée sur la butée (7).8. Antenna base according to one of the preceding claims, characterized in that it is molded onto the stop (7). 9. Butée, notamment pour une embase d'antenne selon l'une des revendications précédentes, caractérisée par le fait qu'elle comporte, sur sa face destinée à être tournée vers la paroi de fixation, une rainure (9) s'étendant de part et d'autre de l'ouverture (8) prévue dans la butée (7) pour le pas­sage de la tige filetée (5), cette rainure (9) étant suffisamment profonde pour que l'appui s'effectue en quatre zones (A, B, C, D) ou (A', B', C', D') situées sur les bords de la rainure (9), laquelle est assez large pour que ces zones soient suffisamment espacées pour assurer une bonne stabilité de la fixation.9. Stop, in particular for an antenna base according to one of the preceding claims, characterized in that it comprises, on its face intended to be turned towards the fixing wall, a groove (9) extending from on either side of the opening (8) provided in the stop (7) for the passage of the threaded rod (5), this groove (9) being deep enough for the support to take place in four zones ( A, B, C, D) or (A ', B', C ', D') located on the edges of the groove (9), which is wide enough for these areas to be sufficiently spaced to ensure good stability of fixation. 10. Butée selon la revendication 8, caractérisée par le fait que la largeur (L) de la rainure (9) est au moins égale à 5 mm, tandis que sa profondeur (h) est au moins égale à la valeur de la flèche de la courbe de la paroi (2) située entre les points de contact, augmentée d'un jeu minimum.10. Stopper according to claim 8, characterized in that the width (L) of the groove (9) is at least equal to 5 mm, while its depth ( h ) is at least equal to the value of the arrow in the curve of the wall (2) located between the contact points, increased by a minimum clearance.
EP89401527A 1988-06-10 1989-06-02 Base for fastening an antenna onto a wall and abutment piece for the base Expired - Lifetime EP0347278B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807769A FR2632779B1 (en) 1988-06-10 1988-06-10 ANTENNA BASE FOR ALLOWING THE FIXING OF AN ANTENNA ON A WALL, AND MOUNTED IN PARTICULAR FOR SUCH A BASE
FR8807769 1988-06-10

Publications (2)

Publication Number Publication Date
EP0347278A1 true EP0347278A1 (en) 1989-12-20
EP0347278B1 EP0347278B1 (en) 1994-05-25

Family

ID=9367165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401527A Expired - Lifetime EP0347278B1 (en) 1988-06-10 1989-06-02 Base for fastening an antenna onto a wall and abutment piece for the base

Country Status (5)

Country Link
EP (1) EP0347278B1 (en)
AT (1) ATE106165T1 (en)
DE (1) DE68915480T2 (en)
ES (1) ES2052943T3 (en)
FR (1) FR2632779B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU602237B2 (en) * 1987-01-30 1990-10-04 Ethyl Corporation Amine deodorization
EP0654844A1 (en) * 1993-11-18 1995-05-24 Wilhelm Sihn jr. KG. Mounting device of a vehicle antenna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946842A (en) * 1959-02-24 1960-07-26 New Tronics Corp Automobile antenna
DE2041009A1 (en) * 1970-08-18 1972-03-02 Kathrein Werke Kg Vehicle antenna
FR2575979A1 (en) * 1984-12-28 1986-07-18 Mecaniplast Device for producing a sealed fastening of a member on a wall, especially a car bodywork metal sheet and application of such a device for the fastening of car accessories, in particular for fastening an aerial footing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946842A (en) * 1959-02-24 1960-07-26 New Tronics Corp Automobile antenna
DE2041009A1 (en) * 1970-08-18 1972-03-02 Kathrein Werke Kg Vehicle antenna
FR2575979A1 (en) * 1984-12-28 1986-07-18 Mecaniplast Device for producing a sealed fastening of a member on a wall, especially a car bodywork metal sheet and application of such a device for the fastening of car accessories, in particular for fastening an aerial footing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU602237B2 (en) * 1987-01-30 1990-10-04 Ethyl Corporation Amine deodorization
EP0654844A1 (en) * 1993-11-18 1995-05-24 Wilhelm Sihn jr. KG. Mounting device of a vehicle antenna

Also Published As

Publication number Publication date
ATE106165T1 (en) 1994-06-15
DE68915480T2 (en) 1994-12-22
ES2052943T3 (en) 1994-07-16
DE68915480D1 (en) 1994-06-30
FR2632779A1 (en) 1989-12-15
EP0347278B1 (en) 1994-05-25
FR2632779B1 (en) 1990-10-12

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