EP0347278B1 - Sockel zum Befestigen einer Antenne auf einer Wand und Druckstück für Sockel - Google Patents

Sockel zum Befestigen einer Antenne auf einer Wand und Druckstück für Sockel Download PDF

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Publication number
EP0347278B1
EP0347278B1 EP89401527A EP89401527A EP0347278B1 EP 0347278 B1 EP0347278 B1 EP 0347278B1 EP 89401527 A EP89401527 A EP 89401527A EP 89401527 A EP89401527 A EP 89401527A EP 0347278 B1 EP0347278 B1 EP 0347278B1
Authority
EP
European Patent Office
Prior art keywords
wall
stop
base
channel
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.)
Expired - Lifetime
Application number
EP89401527A
Other languages
English (en)
French (fr)
Other versions
EP0347278A1 (de
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/de
Application granted granted Critical
Publication of EP0347278B1 publication Critical patent/EP0347278B1/de
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 attachment 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 roof wall of a motor vehicle 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 support 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 the 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 better meets the various requirements of practice than hitherto 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 type 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, placed two by two on opposite edges and in different sections defined by the opening, said groove having a width of at least 5 mm and a depth 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, to ensure a 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 aforementioned groove is oriented, preferably, 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 stop 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 comprises 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 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 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 other than 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, the width of the groove being at least equal at 5 mm, while its depth is at least equal to the value of the arrow in the curve of the wall located between the contact points, increased by a minimum clearance.
  • 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 is a schematic side view, on a larger scale, of the groove of the stopper, cooperating with a curved fixing wall.
  • 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 as to be able to 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 2, 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 piece, 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 take place 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 may include 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)

Claims (7)

  1. Antennen-Befestigungssockel, der dazu bestimmt ist, die Befestigung einer Antenne zu ermöglichen, insbesondere für eine Autoradiogerät, auf einer Wand (2), besonders einer ausgewölbten Wand, und mit einer Gewindespindel (5), die dazu eingerichtet ist, ein in der Wand (2) vorgesehenes Loch zu durchsetzen, einem Widerlager (7), das eine Öffnung (8) aufweist, die von der Spindel (5) durchsetzt ist und dazu eingerichtet ist, gegen die Wand (2) in Anlage zu gelangen, und mit Festspannmitteln (S), die auf der Seite der Wand (2) vorgesehen sind, die dem Widerlager (7) entgegengesetzt ist, um eine Zugwirkung auf die Gewindespindel (5) auszuüben und das Widerlager (7) des Befestigungssockels (1) gegen die Wand (2) anzudrücken, wobei das Widerlager (7) des Befestigungssockels (1) auf seiner der Wand (2) zugewandten Stirnfläche eine Rille (9) aufweist, die sich beiderseits der Öffnung (8) erstreckt, die im Widerlager (7) vorgesehen ist, und in die genannte Öffnung (8) einmündet, dadurch gekennzeichnet, daß diese Rille (9) ausreichend tief ist, daß die Anlage des Widerlagers (7) auf der Wand (2), selbst wenn diese Wand (2) ausgewölbt ist, nur in vier Zonen (A, B, C, D; A', B', C', D') stattfindet, die auf den Rändern der Rille (9) gelegen sind und jeweils zu zweien auf den gegenüberliegenden Rändern und den unterschiedlichen Abschnitten gelegen sind, die durch die Öffnung (8) festgelegt sind, wobei die genannte Rille (9) eine Breite (L) von mindestens 5 mm und eine Tiefe (h) aufweist, die mindestens gleich ist dem Wert der Höhe der Krümmung der Wand (2), die zwischen den Berührungspunkten gelegen ist, erhöht um ein Mindestspiel, um eine gute Stabilität der Befestigung des Antennen-Befestigungssockels (1) auf der Wand (2) sicherzustellen.
  2. Antennen-Befestigungssockel nach Anspruch 1, dadurch gekennzeichnet, daß die vier Zonen entweder auf den inneren Schnittstellen (A, B, C, D) der Ränder der Rille (9) mit dem Rand der Öffnung (8) gelegen sind, die im Widerlager (7) vorgesehen ist, oder auf den äußeren Schnittstellen (A', B', C', D') mit dem Umfang des Widerlagers (7), je nachdem die Wand (2) konvex oder konkav ist.
  3. Antennen-Befestigungssockel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Widerlager (7) aus einem Hartkunststoff hergestellt ist, der keinem Kriechvorgang unterliegt.
  4. Antennen-Befestigungssockel nach Anspruch 3, mit einem Metallkern (3), dadurch gekennzeichnet, daß das Widerlager (7) zwischen dem Kern (3) und der Wand (2) eingeklemmt ist, d.h. zwischen zwei Teilen, die keinem Kriechvorgang unterliegen.
  5. Antennen-Befestigungssockel nach einem der vorangehenden Ansprüche, mit einem Metallkern (3), dadurch gekennzeichnet, daß das Widerlager (7) Laschen (11) aufweist, die radial in das Innere der Öffnung (8) des genannten Widerlagers überstehen, um eine Klemmwirkung auf den Kern (3) des Befestigungssockels (1) und eine Führung auszuüben.
  6. Antennen-Befestigungssockel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß er auf das Widerlager (7) aufgeformt ist.
  7. Widerlager für einen Antennen-Befestigungssockel (1) nach einem der vorangehenden Ansprüche 1 bis 6, mit einer Rille (9) auf ihrer Stirnfläche, die dazu bestimmt ist, der Befestigungswand (2) zugewandt zu werden, wobei sich die Rille (9) beiderseits der Öffnung (8) erstreckt, die im Widerlager (7) für den Durchgang der Gewindespindel (5) vorgesehen ist, dadurch gekennzeichnet, daß diese Rille (9) ausreichend tief ist, damit die Anlage nur in vier Zonen (A, B, C, D; A', B', C', D') stattfindet, die auf den Rändern der Rille (9) gelegen sind, wobei die Breite (L) der Rille (9) mindestens gleich 5 mm ist, während ihre Tiefe (h) mindestens gleich ist dem Wert der Höhe der Krümmung der Wand (2), die zwischen den Berührungspunkten gelegen ist, erhöht um ein Mindestspiel.
EP89401527A 1988-06-10 1989-06-02 Sockel zum Befestigen einer Antenne auf einer Wand und Druckstück für Sockel Expired - Lifetime EP0347278B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807769A FR2632779B1 (fr) 1988-06-10 1988-06-10 Embase d'antenne destinee a permettre la fixation d'une antenne sur une paroi, et butee notamment pour une telle embase
FR8807769 1988-06-10

Publications (2)

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

Family

ID=9367165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401527A Expired - Lifetime EP0347278B1 (de) 1988-06-10 1989-06-02 Sockel zum Befestigen einer Antenne auf einer Wand und Druckstück für Sockel

Country Status (5)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801426A (en) * 1987-01-30 1989-01-31 Ethyl Corporation Amine deodorization
DE4339260C1 (de) * 1993-11-18 1995-07-06 Sihn Jr Kg Wilhelm Einrichtung zum Befestigen einer Fahrzeugantenne

Family Cites Families (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 (de) * 1970-08-18 1972-03-02 Kathrein Werke Kg Fahrzeugantenne
FR2575979B1 (fr) * 1984-12-28 1989-10-06 Mecaniplast Dispositif pour realiser une fixation etanche d'un organe sur une paroi, notamment une tole de carrosserie automobile et application d'un tel dispositif a la fixation d'accessoires automobiles, en particulier a la fixation d'une embase d'antenne

Also Published As

Publication number Publication date
ES2052943T3 (es) 1994-07-16
DE68915480D1 (de) 1994-06-30
FR2632779A1 (fr) 1989-12-15
EP0347278A1 (de) 1989-12-20
FR2632779B1 (fr) 1990-10-12
ATE106165T1 (de) 1994-06-15
DE68915480T2 (de) 1994-12-22

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