EP2713435B1 - System for mounting an antenna on a cylindrical bracket - Google Patents

System for mounting an antenna on a cylindrical bracket Download PDF

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Publication number
EP2713435B1
EP2713435B1 EP12306187.1A EP12306187A EP2713435B1 EP 2713435 B1 EP2713435 B1 EP 2713435B1 EP 12306187 A EP12306187 A EP 12306187A EP 2713435 B1 EP2713435 B1 EP 2713435B1
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EP
European Patent Office
Prior art keywords
antenna
reflector
axis
fastening
mounting system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP12306187.1A
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German (de)
French (fr)
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EP2713435A1 (en
EP2713435B8 (en
Inventor
Loic Isambard
Xavier Vauthier
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Alcatel Lucent SAS
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Alcatel Lucent SAS
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Priority to EP12306187.1A priority Critical patent/EP2713435B8/en
Publication of EP2713435A1 publication Critical patent/EP2713435A1/en
Publication of EP2713435B1 publication Critical patent/EP2713435B1/en
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Publication of EP2713435B8 publication Critical patent/EP2713435B8/en
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    • 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
    • H01Q1/1228—Supports; Mounting means for fastening a rigid aerial element on a boom

Definitions

  • the present invention relates to a parabolic reflector antenna, and in particular to a system for mounting such an antenna on a cylindrical support, such as a tubular mast for example.
  • the antennas placed outside are connected to radio boxes called ODU (for "OutDoor Unit” in English) to process the radio frequency signal received or to be transmitted.
  • ODU for "OutDoor Unit” in English
  • These radio boxes control the input and output of the antenna.
  • these radio boxes were fixed on the tubular mast away from the antenna, and then connected to the antenna by means of a flexible cable, such as a Flextwist ® brand cable marketed by the company RADIO FREQUENCY SYSTEM.
  • This type of installation tends to disappear in favor of integrated antennas.
  • the operators deploy a new type of installation consisting of using an orthomode transducer known as OMT (for "Orthogonal Mode Transducer").
  • OMT orthomode transducer
  • the antenna can thus carry several radio boxes simultaneously.
  • the solution currently used is to add an intermediate plate or to lengthen the mounting parts to increase the distance, called the offset, between the axis of the antenna reflector parabolic and the longitudinal axis in the center of the tubular mast .
  • the main disadvantage of this solution is the impact on the mechanical performance of the antenna. Indeed, in the so-called “operational” conditions (wind, shock, large temperature differences, deformation of an element or any overload), the antenna must satisfy alignment constraints in order to guarantee the good transmission of the signal, and the increase of the offset hurts the quality of this score. In the same way, under extreme conditions called “survival", some disturbances may increase the risk of a misalignment of the antenna or a rotation thereof around the tubular mast, this risk is all the more amplified that the offset is big.
  • a device comprising a box whose bottom is shaped with a recess constituting the reflector of the antenna.
  • the box is mounted on one or two masts by a plate screwed on its side wall and the antenna is in front of the axis XX of the mast or masts.
  • the present invention aims to eliminate the aforementioned drawbacks.
  • the invention proposes a mounting system, which offers a small footprint by reducing the offset and nevertheless preserves the necessary clearance between the radio boxes and the antenna.
  • the mounting system adjusts the antenna alignment and maintains all the mechanical properties of the antenna.
  • the axis X-X 'of the vertical cylindrical support is included in the tangent plane or in the field located on the side of the antenna relative to the tangent plane.
  • the present invention has the advantage of allowing the use of the space left free behind the antenna to place the fixing device.
  • This mounting system avoids the lack of clearance vis-à-vis the cylindrical support whatever the volume and dimensions of the radio box, and the number of radio boxes.
  • the editing system is usable for all frequency ranges, and particularly in the low frequency range where the radio boxes are the largest.
  • the invention also allows an evolution of the antenna including allowing an increase in the volume and number of radio boxes, but also the addition of additional accessories.
  • the first fixing means comprises an interface intended to cooperate with a radio box, so that the reflector, the interface and the radio box are aligned along the axis YY 'of the reflector when the antenna is mounted.
  • the connecting means comprises a lateral member, fixed on the interface, which extends perpendicular to the axis YY '.
  • the connecting means further comprises a bracket cooperating with the lateral member.
  • the connecting means comprises means for adjusting the inclination.
  • the inclination adjusting means comprises a threaded rod cooperating with a finger to produce a rotational movement about a Z-Z axis pin perpendicular to the Y-Y axis of the reflector.
  • the second fixing means comprises means for adjusting the azimuth in the horizontal plane.
  • the azimuth adjustment means comprises an eye rod supported by the bracket and fixed to a lower flange of the second fastening means.
  • the second attachment means comprises a fall arrest means comprising a collar connected to a flange of the second fixing means.
  • the invention is illustrated in the following description in the case of a microwave antenna parabolic reflector, but it applies to other types of antenna such as a panel antenna for example.
  • a parabolic reflector antenna 1 of axis YY ' is fixed on a vertical cylindrical support 2 of axis X-X', such as a tubular mast.
  • a radio box 3 is contiguous at the top 4 of the parabola of the reflector 1 via an interface 5 placed at the rear of the antenna.
  • FIGS. 3 and 4 illustrate another embodiment in which a parabolic reflector antenna 31 of axis YY 'is fixed on a vertical cylindrical support 32 of axis X-X', such as a tubular mast.
  • a radio box 33 is contiguous at the top 34 of the parabola of the reflector 31 via an interface 35 placed at the rear of the antenna.
  • this embodiment makes it possible to completely clear the domain 38 at the rear of the antenna to place the radio boxes there.
  • a mounting device is illustrated on the Figures 5 to 7 in the embodiment of the figure 3 .
  • a parabolic reflector antenna 51 of axis YY ' is fixed on a vertical cylindrical support 52 of axis X-X', such as a tubular mast.
  • a radio box 53 is contiguous at the top 54 of the parabola of the reflector 51 via an interface 55 placed at the rear of the antenna.
  • the vertical plane 56 tangential to the vertex 54 of the parabola of the reflector 51 defines a first domain 57 located on the side of the reflector 51 of the antenna and a second domain 58 located on the side of the radio box 53.
  • the XX 'axis of the cylindrical support 52 passing through the center 59 of the cylindrical support 52 is in the first domain 57 located on the side of the reflector 51 of the antenna.
  • the parabolic reflector 51 of the antenna having an aperture with a diameter of about one meter, is fixed on the cylindrical support 52 by means of a mounting device 60.
  • the mounting device 60 comprises a first fixing means 61 of the mounting 60 on the antenna, and a second fixing means 62 of the mounting device on the cylindrical support 52.
  • the first fixing means 61 and the second fixing means 62 are connected by a connecting means 63.
  • the second fixing means 62 comprises at least one lower flange 64A and at least one upper holding flange 64B, 64C cooperating with clamping means 65, such as bolts and nuts, tightened to a predefined tightening torque so that once installed and oriented, the antenna can not rotate around the cylindrical support 52, nor slide along it.
  • the second attachment means 62 also has another function which is to prevent the fall of the antenna during its installation on the cylindrical support 52.
  • the fall arrest function is obtained by clamping a collar 70 surrounding the cylindrical support whose two ends are connected to the flange 64A of the second attachment means 62 which is the lowest, for example by a bolt-nut fastener.
  • the mounting device 60 is fixed to the rear of the parabolic reflector 51 of the antenna by means of the first fixing means 61.
  • the interface 55 belonging to the first fixing means 61, adopts here substantially the shape of a thick disc which is attached and fixed on the top of the parabolic reflector by a fastening means such as a plurality of screws, rivets or bolts 66.
  • the interface could adopt any other shape adapted to the shape of the antenna and for connecting the reflector of the antenna to at least one radio box, such as a thick quadrilateral for example.
  • the radio box 53 may be attached to the opposite face of the interface 55, for example by screws, rivets or bolts associated with nuts. It is understood that the reflector 51, the interface 55 and the radio box 53 are then solidly aligned along the axis YY 'when the antenna is mounted, the connection to the cylindrical support 52 being effected laterally.
  • the exploded view of the mounting device 60 shown in FIG. figure 7 shows in detail the connecting means 63 which connects the second attachment means 62 to the first securing means 61.
  • the connecting means 63 comprises a lateral member 67, which here has a substantially trapezoidal shape.
  • the wider side of the lateral member 67 is attached to the perimeter of the interface 55 which it is secured, so that the lateral member 67 extends perpendicular to the axis YY 'of the reflector 51.
  • the narrowest side of the lateral member 67 is connected to the console 68 of the connecting means 63.
  • the connecting means 63 also allows fine adjustment of the inclination and azimuth by rotation of the antenna around the cylindrical support 52.
  • the means for adjusting the azimuth in the horizontal plane comprises an eye rod 71 whose one end is supported by the bracket 68 and the other end is fixed on the flange 64A of the second fixing means 62 which is the lowest for example by a fastener type bolt-nut.
  • the tightening / loosening of the attachment of the rod to the eye 70 on the flange 64A frees the rotation of the antenna around the vertical axis XX 'of the cylindrical support 52.
  • this configuration makes it possible to freely rotate the antenna around the cylindrical support 52 to perform an azimuth adjustment, without the distance of the reflector 51 and the radio box 53 to the cylindrical support 52 changes as well during the adjustment once adjustment is made.
  • the figure 8 illustrates a partial enlarged view of the mounting device 60 showing the adjustment means 80 of the inclination in the vertical plane (also called “tilt").
  • the means for adjusting the inclination in the vertical plane comprises a pin 81, a finger 82 and a threaded rod 83 such as a bolt associated with a nut.
  • the pin 81, axis ZZ 'and connected to the center of the console 68, serves as a pivot for the rotation of the console 68 secured to the reflector 51 of the antenna for the fine adjustment of the inclination.
  • the axis ZZ ' is perpendicular to the axis YY' of the reflector 51 and crosses the vertical axis XX 'of the cylindrical support 52.
  • the finger 82 is disposed perpendicularly to the threaded rod 83 and supported by a fork 84 of the console 68 of the connecting means 63.
  • the finger 82 moves laterally along the threaded rod 83 in one direction or the other, causing the rotation of the console 68, around the axis ZZ 'of the pin 81.
  • the reflector 51 of the antenna and the radio box 53 fixed on the mounting device 60 are then also moved in rotation about the axis ZZ' in the same way.
  • the second attachment means 62 comprises two holding flanges 64B, 64C and a flange 64AB, placed below, for the fall arrest function.
  • the second attachment means 62 comprises two holding flanges 64B, 64C and a flange 64AB, placed below, for the fall arrest function.
  • the present invention is not limited to the embodiments described and shown, but it is capable of many variants accessible to those skilled in the art without departing from the spirit of the invention.
  • the number and the mechanical strength of the parts of the mounting device can be adapted according to the mechanical properties of antennas having in particular reflectors of different models and diameters. We can also slightly modify the geometric shape of the parts as it does not affect their function and their cooperation with other parts.

Description

La présente invention se rapporte à une antenne à réflecteur parabolique, et notamment à un système pour le montage d'une telle antenne sur un support cylindrique, tel qu'un mât tubulaire par exemple.The present invention relates to a parabolic reflector antenna, and in particular to a system for mounting such an antenna on a cylindrical support, such as a tubular mast for example.

Les antennes placées à l'extérieur sont reliés à des boîtes radio dites ODU (pour "OutDoor Unit" en anglais) afin de traiter le signal radiofréquence reçu ou à transmettre. Ces boîtes radio contrôlent l'entrée et la sortie de l'antenne. Jusqu'à récemment, ces boîtes radio étaient fixées sur le mât tubulaire à distance de l'antenne, puis connectées à l'antenne au moyen d'un câble souple, comme par exemple un câble de marque Flextwist ®) commercialisé par la société RADIO FREQUENCY SYSTEM.The antennas placed outside are connected to radio boxes called ODU (for "OutDoor Unit" in English) to process the radio frequency signal received or to be transmitted. These radio boxes control the input and output of the antenna. Until recently, these radio boxes were fixed on the tubular mast away from the antenna, and then connected to the antenna by means of a flexible cable, such as a Flextwist ® brand cable marketed by the company RADIO FREQUENCY SYSTEM.

Ce type d'installation a tendance à disparaître au profit d'antennes intégrées. Cela signifie que les boîtes radio sont placées directement contre l'arrière de l'antenne. Par ailleurs les opérateurs déploient un nouveau type d'installation consistant à utiliser un transducteur orthomode dit OMT (pour "Orthogonal Mode Transducer" en anglais). L'antenne peut ainsi porter plusieurs boîtes radio simultanément. Cette nouvelle position des boîtes radio, et surtout en présence d'un transducteur OMT, pose un problème d'encombrement et conduit à l'absence de dégagement d'une part entre les boîtes de radio et le transducteur OMT et d'autre part entre l'antenne et son dispositif de fixation sur le mât tubulaire.This type of installation tends to disappear in favor of integrated antennas. This means that the radio boxes are placed directly against the back of the antenna. In addition, the operators deploy a new type of installation consisting of using an orthomode transducer known as OMT (for "Orthogonal Mode Transducer"). The antenna can thus carry several radio boxes simultaneously. This new position of the radio boxes, and especially in the presence of an OMT transducer, poses a congestion problem and leads to the lack of clearance on the one hand between the radio boxes and the OMT transducer and on the other hand between the antenna and its fixing device on the tubular mast.

La solution utilisée actuellement consiste à ajouter une plaque intermédiaire ou à rallonger les pièces de montage afin d'augmenter la distance, appelé déport, entre l'axe de la parabole du réflecteur de l'antenne et l'axe longitudinal au centre du mât tubulaire. Mais le principal inconvénient de cette solution est l'impact sur les performances mécaniques de l'antenne. En effet, dans les conditions dites « opérationnelles » (vent, choc, forts écarts de température, déformation d'un élément ou surcharge quelconque), l'antenne doit satisfaire à des contraintes d'alignement afin de garantir la bonne transmission du signal, et l'augmentation du déport nuit à la qualité de ce pointage. De la même façon, sous des conditions extrêmes dites de « survie », certaines perturbations peuvent accroître le risque d'un dépointage de l'antenne ou d'une rotation de celle-ci autour du mât tubulaire, ce risque est d'autant plus amplifié que le déport est grand.The solution currently used is to add an intermediate plate or to lengthen the mounting parts to increase the distance, called the offset, between the axis of the antenna reflector parabolic and the longitudinal axis in the center of the tubular mast . But the main disadvantage of this solution is the impact on the mechanical performance of the antenna. Indeed, in the so-called "operational" conditions (wind, shock, large temperature differences, deformation of an element or any overload), the antenna must satisfy alignment constraints in order to guarantee the good transmission of the signal, and the increase of the offset hurts the quality of this score. In the same way, under extreme conditions called "survival", some disturbances may increase the risk of a misalignment of the antenna or a rotation thereof around the tubular mast, this risk is all the more amplified that the offset is big.

Connu du document FR-A-2 349 970 est également un dispositif comprenant un coffret dont le fond est conformé avec un renfoncement constituant le réflecteur de l'antenne. Le coffret est monté sur un ou deux mâts par une plaque vissée sur sa paroi latérale et l'antenne est en avant de l'axe X-X du ou des mâts. La présente invention a pour but d'éliminer les inconvénients précités. Dans ce but, l'invention propose un système de montage, qui offre un encombrement réduit en diminuant le déport et préserve néanmoins le dégagement nécessaire entre les boîtes radio et l'antenne. Le système de montage permet de régler l'alignement de l'antenne et de conserver toutes les propriétés mécaniques de l'antenne.Known from the document FR-A-2,349,970 is also a device comprising a box whose bottom is shaped with a recess constituting the reflector of the antenna. The box is mounted on one or two masts by a plate screwed on its side wall and the antenna is in front of the axis XX of the mast or masts. The present invention aims to eliminate the aforementioned drawbacks. For this purpose, the invention proposes a mounting system, which offers a small footprint by reducing the offset and nevertheless preserves the necessary clearance between the radio boxes and the antenna. The mounting system adjusts the antenna alignment and maintains all the mechanical properties of the antenna.

L'objet de la présente invention est un système de montage d'une antenne ayant un réflecteur sur un support cylindrique vertical, comportant un dispositif de montage comprenant

  • au moins un premier moyen de fixation du dispositif de montage sur l'antenne,
  • un deuxième moyen de fixation du dispositif de montage sur le support cylindrique, comportant au moins deux brides, et
  • un moyen de liaison entre le premier moyen de fixation et le deuxième moyen de fixation.
The object of the present invention is an antenna mounting system having a reflector on a vertical cylindrical support, comprising a mounting device comprising
  • at least one first fixing means of the mounting device on the antenna,
  • a second fixing means of the mounting device on the cylindrical support, comprising at least two flanges, and
  • connecting means between the first fixing means and the second fixing means.

En considérant un plan vertical tangent au réflecteur, l'axe X-X' du support cylindrique vertical est inclus dans le plan tangent ou dans le domaine située du côté de l'antenne par rapport au plan tangent.Considering a vertical plane tangent to the reflector, the axis X-X 'of the vertical cylindrical support is included in the tangent plane or in the field located on the side of the antenna relative to the tangent plane.

La présente invention a comme avantage de permettre l'utilisation de l'espace laissé libre derrière l'antenne afin d'y placer le dispositif de fixation. Ce système de montage évite le manque de dégagement vis-à-vis du support cylindrique quel que soit le volume et les dimensions de la boîte radio, et le nombre de boîte radio. Le système de montage est utilisable pour toutes les gammes de fréquence, et en particulier dans le domaine des basses fréquences où les boîtes radio sont les plus grandes. L'invention permet aussi une évolution de l'antenne notamment en permettant une augmentation du volume et du nombre de boîtes radio, mais aussi l'ajout d'accessoires supplémentaires.The present invention has the advantage of allowing the use of the space left free behind the antenna to place the fixing device. This mounting system avoids the lack of clearance vis-à-vis the cylindrical support whatever the volume and dimensions of the radio box, and the number of radio boxes. The editing system is usable for all frequency ranges, and particularly in the low frequency range where the radio boxes are the largest. The invention also allows an evolution of the antenna including allowing an increase in the volume and number of radio boxes, but also the addition of additional accessories.

Selon un premier aspect, le premier moyen de fixation comprend une interface destinée à coopérer avec une boîte radio, de telle sorte que le réflecteur, l'interface et la boite radio soit alignés le long de l'axe Y-Y' du réflecteur lorsque l'antenne est montée.According to a first aspect, the first fixing means comprises an interface intended to cooperate with a radio box, so that the reflector, the interface and the radio box are aligned along the axis YY 'of the reflector when the antenna is mounted.

Selon un deuxième aspect, le moyen de liaison comprend un membre latéral, fixé sur l'interface, qui s'étend perpendiculairement à l'axe Y-Y'. L Le moyen de liaison comporte en outre une console coopérant avec le membre latéral.According to a second aspect, the connecting means comprises a lateral member, fixed on the interface, which extends perpendicular to the axis YY '. The connecting means further comprises a bracket cooperating with the lateral member.

Selon un troisième aspect, le moyen de liaison comprend un moyen de réglage de l'inclinaison. Le moyen de réglage de l'inclinaison comporte une tige filetée coopérant avec un doigt pour produire un mouvement de rotation autour d'une goupille d'axe Z-Z' perpendiculaire à l'axe Y-Y' du réflecteur.According to a third aspect, the connecting means comprises means for adjusting the inclination. The inclination adjusting means comprises a threaded rod cooperating with a finger to produce a rotational movement about a Z-Z axis pin perpendicular to the Y-Y axis of the reflector.

Selon un quatrième aspect, le deuxième moyen de fixation comprend un moyen de réglage de l'azimut dans le plan horizontal. Le moyen de réglage de l'azimut comporte une tige à oeil supportée par la console et fixée sur une bride inférieure du deuxième moyen de fixation.According to a fourth aspect, the second fixing means comprises means for adjusting the azimuth in the horizontal plane. The azimuth adjustment means comprises an eye rod supported by the bracket and fixed to a lower flange of the second fastening means.

Selon un cinquième aspect, le deuxième moyen de fixation comprend un moyen antichute comportant un collier relié à une bride du deuxième moyen de fixation.According to a fifth aspect, the second attachment means comprises a fall arrest means comprising a collar connected to a flange of the second fixing means.

L'invention est illustrée dans la description qui suit dans le cas d'une antenne microonde à réflecteur parabolique, mais elle s'applique aussi bien à d'autre type d'antenne telle qu'une antenne panneau par exemple.The invention is illustrated in the following description in the case of a microwave antenna parabolic reflector, but it applies to other types of antenna such as a panel antenna for example.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui suit d'un mode de réalisation, donné bien entendu à titre illustratif et non limitatif, et dans le dessin annexé sur lequel

  • la figure 1 illustre une vue de dessus d'un premier mode de réalisation du système de montage,
  • la figure 2 illustre une vue en perspective du système de montage de la figure 1,
  • la figure 3 illustre une vue de dessus d'un deuxième mode de réalisation du système de montage,
  • la figure 4 illustre une vue en perspective du système de montage de la figure 3,
  • la figure 5 illustre une vue de dessus du deuxième mode de réalisation du système de montage montrant un dispositif de fixation,
  • la figure 6 illustre une vue en perspective du deuxième mode de réalisation du système de montage montrant le dispositif de fixation de la figure 5,
  • la figure 7 illustre une vue éclatée du dispositif de fixation de la figure 6,
  • la figure 8 illustre une vue agrandie partielle du dispositif de fixation de la figure 6 montrant le moyen de réglage de l'inclinaison dans le plan vertical (tilt).
Other characteristics and advantages of the present invention will appear on reading the following description of an embodiment, given of course by way of illustration and not limitation, and in the accompanying drawing in which:
  • the figure 1 illustrates a view from above of a first embodiment of the mounting system,
  • the figure 2 illustrates a perspective view of the mounting system of the figure 1 ,
  • the figure 3 illustrates a view from above of a second embodiment of the mounting system,
  • the figure 4 illustrates a perspective view of the mounting system of the figure 3 ,
  • the figure 5 illustrates a top view of the second embodiment of the mounting system showing a fastener,
  • the figure 6 illustrates a perspective view of the second embodiment of the mounting system showing the fastening device of the figure 5 ,
  • the figure 7 illustrates an exploded view of the fastening device of the figure 6 ,
  • the figure 8 illustrates a partial enlarged view of the fastening device of the figure 6 showing the means for adjusting the inclination in the vertical plane (tilt).

Dans le mode de réalisation de l'invention illustré sur les figures 1 et 2, une antenne à réflecteur parabolique 1 d'axe Y-Y' est fixée sur un support cylindrique 2 vertical d'axe X-X', tel qu'un mât tubulaire. Une boîte radio 3 est accolée au sommet 4 de la parabole du réflecteur 1 par l'intermédiaire d'une interface 5 placée à l'arrière de l'antenne.In the embodiment of the invention illustrated on the Figures 1 and 2 , a parabolic reflector antenna 1 of axis YY 'is fixed on a vertical cylindrical support 2 of axis X-X', such as a tubular mast. A radio box 3 is contiguous at the top 4 of the parabola of the reflector 1 via an interface 5 placed at the rear of the antenna.

On considère un plan 6 vertical tangent au sommet 4 de la parabole du réflecteur 1 de l'antenne et perpendiculaire à l'axe Y-Y' de la parabole du réflecteur 1, définissant ainsi deux domaines de part et d'autre du plan 6 : un premier domaine 7 situé du côté du réflecteur 1 de l'antenne et un second domaine 8 situé du côté de la boîte radio 3. Dans le cas illustré ici, l'axe X-X' vertical du support cylindrique 2 passant par le centre 9 d'une section transversale du support cylindrique 2 se trouve dans le plan 6. Consider a plane 6 vertical tangent to the apex 4 of the parabola of the reflector 1 of the antenna and perpendicular to the axis YY 'of the parabola of the reflector 1, thus defining two areas on either side of the plane 6: a first domain 7 located on the side of the reflector 1 of the antenna and a second domain 8 located on the side of the radio box 3. In the case illustrated here, the vertical axis XX 'of the cylindrical support 2 passing through the center 9 of a cross section of the cylindrical support 2 is in the plane 6.

Les figures 3 et 4 illustrent un autre mode de réalisation dans lequel une antenne à réflecteur parabolique 31 d'axe Y-Y' est fixée sur un support cylindrique 32 vertical d'axe X-X', tel qu'un mât tubulaire. Une boîte radio 33 est accolée au sommet 34 de la parabole du réflecteur 31 par l'intermédiaire d'une interface 35 placée à l'arrière de l'antenne.The Figures 3 and 4 illustrate another embodiment in which a parabolic reflector antenna 31 of axis YY 'is fixed on a vertical cylindrical support 32 of axis X-X', such as a tubular mast. A radio box 33 is contiguous at the top 34 of the parabola of the reflector 31 via an interface 35 placed at the rear of the antenna.

On considère un plan 36 vertical tangent au sommet 34 de la parabole du réflecteur 31 de l'antenne et perpendiculaire à l'axe Y-Y' de la parabole du réflecteur 1, définissant ainsi deux domaines de part et d'autre du plan 36 : un premier domaine 37 situé du côté du réflecteur 31 de l'antenne et un second domaine 38 situé du côté de la boîte radio 33. Dans le cas illustré ici, l'axe X-X' vertical du support cylindrique 32 passant par le centre 39 d'une section transversale du support cylindrique 32 se trouve dans le premier domaine 37 situé du côté du réflecteur 31 de l'antenne.Consider a vertical plane 36 tangent to the apex 34 of the parabola of the reflector 31 of the antenna and perpendicular to the axis YY 'of the parabola of the reflector 1, thus defining two areas on either side of the plane 36: an first domain 37 located on the side of the reflector 31 of the antenna and a second domain 38 located on the side of the radio box 33. In the case illustrated here, the vertical axis XX 'of the cylindrical support 32 passing through the center 39 of a cross section of the cylindrical support 32 is in the first domain 37 located on the side of the reflector 31 of the antenna.

Comme on peut le voir, ce mode de réalisation permet de dégager complètement le domaine 38 à l'arrière de l'antenne pour y placer les boitiers radio.As can be seen, this embodiment makes it possible to completely clear the domain 38 at the rear of the antenna to place the radio boxes there.

Un dispositif de montage est illustré sur les figures 5 à 7 dans le mode de réalisation de la figure 3. Une antenne à réflecteur parabolique 51 d'axe Y-Y' est fixée sur un support cylindrique 52 vertical d'axe X-X', tel qu'un mât tubulaire. Une boîte radio 53 est accolée au sommet 54 de la parabole du réflecteur 51 par l'intermédiaire d'une interface 55 placée à l'arrière de l'antenne. Le plan 56 vertical tangent au sommet 54 de la parabole du réflecteur 51 définit un premier domaine 57 situé du côté du réflecteur 51 de l'antenne et un second domaine 58 situé du côté de la boîte radio 53. Dans le cas illustré ici, l'axe X-X' du support cylindrique 52 passant par le centre 59 du support cylindrique 52 se trouve dans le premier domaine 57 situé du côté du réflecteur 51 de l'antenne.A mounting device is illustrated on the Figures 5 to 7 in the embodiment of the figure 3 . A parabolic reflector antenna 51 of axis YY 'is fixed on a vertical cylindrical support 52 of axis X-X', such as a tubular mast. A radio box 53 is contiguous at the top 54 of the parabola of the reflector 51 via an interface 55 placed at the rear of the antenna. The vertical plane 56 tangential to the vertex 54 of the parabola of the reflector 51 defines a first domain 57 located on the side of the reflector 51 of the antenna and a second domain 58 located on the side of the radio box 53. In the case illustrated here, the XX 'axis of the cylindrical support 52 passing through the center 59 of the cylindrical support 52 is in the first domain 57 located on the side of the reflector 51 of the antenna.

Le réflecteur parabolique 51 de l'antenne, ayant une ouverture de diamètre environ un mètre, est fixé sur le support cylindrique 52 au moyen d'un dispositif de montage 60. Le dispositif de montage 60 comporte un premier moyen de fixation 61 du dispositif de montage 60 sur l'antenne, et un deuxième moyen de fixation 62 du dispositif de montage sur le support cylindrique 52. Le premier moyen de fixation 61 et le deuxième moyen de fixation 62 sont reliés par un moyen de liaison 63. The parabolic reflector 51 of the antenna, having an aperture with a diameter of about one meter, is fixed on the cylindrical support 52 by means of a mounting device 60. The mounting device 60 comprises a first fixing means 61 of the mounting 60 on the antenna, and a second fixing means 62 of the mounting device on the cylindrical support 52. The first fixing means 61 and the second fixing means 62 are connected by a connecting means 63.

Le deuxième moyen de fixation 62 comprend au moins une bride 64A inférieure et au moins une bride de maintien 64B, 64C supérieure coopérant avec des moyens de serrage 65, tels que des boulons et écrous, serrées à un couple de serrage prédéfini de telle sorte que, une fois installée et orientée, l'antenne ne puisse plus tourner autour du support cylindrique 52, ni glisser le long de celui-ci. Le deuxième moyen de fixation 62 possède en outre une autre fonction qui est d'éviter la chute de l'antenne lors de son installation sur le support cylindrique 52. La fonction antichute est obtenue par le serrage d'un collier 70 entourant le support cylindrique dont les deux extrémités sont reliées à la bride 64A du deuxième moyen de fixation 62 qui se trouve le plus bas, par exemple par une fixation de type boulon-écrou.The second fixing means 62 comprises at least one lower flange 64A and at least one upper holding flange 64B, 64C cooperating with clamping means 65, such as bolts and nuts, tightened to a predefined tightening torque so that once installed and oriented, the antenna can not rotate around the cylindrical support 52, nor slide along it. The second attachment means 62 also has another function which is to prevent the fall of the antenna during its installation on the cylindrical support 52. The fall arrest function is obtained by clamping a collar 70 surrounding the cylindrical support whose two ends are connected to the flange 64A of the second attachment means 62 which is the lowest, for example by a bolt-nut fastener.

Considérons la figure 6 qui illustre une vue en perspective arrière. Le dispositif de montage 60 est fixé à l'arrière du réflecteur parabolique 51 de l'antenne à l'aide du premier moyen de fixation 61. Dans le cas présent l'interface 55, appartenant au premier moyen de fixation 61, adopte ici sensiblement la forme d'un disque épais qui est accolé et fixé sur la partie sommital du réflecteur parabolique par un moyen de fixation tel qu'une pluralité de vis, de rivets ou de boulons 66. Toutefois l'interface pourrait adopter n'importe quelle autre forme adaptée à la forme de l'antenne et permettant de relier le réflecteur de l'antenne à au moins une boîte radio, tel qu'un quadrilatère épais par exemple. La boîte radio 53 peut être fixée sur la face opposée de l'interface 55, par exemple par des vis, des rivets ou des boulons associés à des écrous. On comprend que le réflecteur 51, l'interface 55 et la boite radio 53 sont alors solidairement alignés le long de l'axe Y-Y' lorsque l'antenne est montée, la liaison au support cylindrique 52 s'effectuant latéralement.Consider the figure 6 which illustrates a rear perspective view. The mounting device 60 is fixed to the rear of the parabolic reflector 51 of the antenna by means of the first fixing means 61. In this case the interface 55, belonging to the first fixing means 61, adopts here substantially the shape of a thick disc which is attached and fixed on the top of the parabolic reflector by a fastening means such as a plurality of screws, rivets or bolts 66. However the interface could adopt any other shape adapted to the shape of the antenna and for connecting the reflector of the antenna to at least one radio box, such as a thick quadrilateral for example. The radio box 53 may be attached to the opposite face of the interface 55, for example by screws, rivets or bolts associated with nuts. It is understood that the reflector 51, the interface 55 and the radio box 53 are then solidly aligned along the axis YY 'when the antenna is mounted, the connection to the cylindrical support 52 being effected laterally.

La vue éclatée du dispositif de montage 60 illustré sur la figure 7 montre en détail le moyen de liaison 63 qui relie le deuxième moyen de fixation 62 au premier moyen de fixation 61. Le moyen de liaison 63 comprend un membre latéral 67, qui a ici une forme sensiblement trapézoïdale. Le côté le plus large du membre latéral 67 est accolé au périmètre de l'interface 55 dont il est solidaire, de telle sorte que le membre latéral 67 s'étende perpendiculairement à l'axe Y-Y' du réflecteur 51. Le côté le plus étroit du membre latéral 67 est relié à la console 68 du moyen de liaison 63. Le moyen de liaison 63 permet aussi le réglage fin de l'inclinaison et de l'azimut par rotation de l'antenne autour du support cylindrique 52. The exploded view of the mounting device 60 shown in FIG. figure 7 shows in detail the connecting means 63 which connects the second attachment means 62 to the first securing means 61. The connecting means 63 comprises a lateral member 67, which here has a substantially trapezoidal shape. The wider side of the lateral member 67 is attached to the perimeter of the interface 55 which it is secured, so that the lateral member 67 extends perpendicular to the axis YY 'of the reflector 51. The narrowest side of the lateral member 67 is connected to the console 68 of the connecting means 63. The connecting means 63 also allows fine adjustment of the inclination and azimuth by rotation of the antenna around the cylindrical support 52.

Le moyen de réglage de l'azimut dans le plan horizontal comprend une tige à oeil 71 dont une extrémité est supportée par la console 68 et l'autre extrémité est fixée sur la bride 64A du deuxième moyen de fixation 62 qui se trouve le plus bas, par exemple par une fixation de type boulon-écrou. Le serrage/desserrage de la fixation de la tige à l'oeil 70 sur la bride 64A permet de libérer la rotation de l'antenne autour de l'axe X-X' vertical du support cylindrique 52. Avantageusement cette configuration permet de faire tourner librement l'antenne autour du support cylindrique 52 pour effectuer un réglage de l'azimut, sans que la distance du réflecteur 51 et du boitier radio 53 au support cylindrique 52 ne change aussi bien pendant le réglage qu'une fois le réglage effectué.The means for adjusting the azimuth in the horizontal plane comprises an eye rod 71 whose one end is supported by the bracket 68 and the other end is fixed on the flange 64A of the second fixing means 62 which is the lowest for example by a fastener type bolt-nut. The tightening / loosening of the attachment of the rod to the eye 70 on the flange 64A frees the rotation of the antenna around the vertical axis XX 'of the cylindrical support 52. Advantageously, this configuration makes it possible to freely rotate the antenna around the cylindrical support 52 to perform an azimuth adjustment, without the distance of the reflector 51 and the radio box 53 to the cylindrical support 52 changes as well during the adjustment once adjustment is made.

La figure 8 illustre une vue agrandie partielle du dispositif de montage 60 montrant le moyen de réglage 80 de l'inclinaison dans le plan vertical (aussi appelée « tilt »). Le moyen de réglage de l'inclinaison dans le plan vertical comprend une goupille 81, un doigt 82 et une tige filetée 83 telle qu'un boulon associé à un écrou. La goupille 81, d'axe Z-Z' et reliée au centre de la console 68, sert de pivot permettant la rotation de la console 68 solidaire du réflecteur 51 de l'antenne pour le réglage fin de l'inclinaison. L'axe Z-Z' est perpendiculaire à l'axe Y-Y' du réflecteur 51 et croise l'axe X-X' vertical du support cylindrique 52. Le doigt 82 est disposé perpendiculairement à la tige filetée 83 et supporté par une fourche 84 de la console 68 du moyen de liaison 63. Lors de la rotation de la tige filetée 83, le doigt 82 se déplace latéralement le long de la tige filetée 83 dans un sens ou dans l'autre, entrainant la rotation de la console 68, autour de l'axe Z-Z' de la goupille 81. Le réflecteur 51 de l'antenne et la boîte radio 53 fixés sur le dispositif de montage 60 sont alors aussi déplacés en rotation autour de l'axe Z-Z' de la même façon.The figure 8 illustrates a partial enlarged view of the mounting device 60 showing the adjustment means 80 of the inclination in the vertical plane (also called "tilt"). The means for adjusting the inclination in the vertical plane comprises a pin 81, a finger 82 and a threaded rod 83 such as a bolt associated with a nut. The pin 81, axis ZZ 'and connected to the center of the console 68, serves as a pivot for the rotation of the console 68 secured to the reflector 51 of the antenna for the fine adjustment of the inclination. The axis ZZ 'is perpendicular to the axis YY' of the reflector 51 and crosses the vertical axis XX 'of the cylindrical support 52. The finger 82 is disposed perpendicularly to the threaded rod 83 and supported by a fork 84 of the console 68 of the connecting means 63. During the rotation of the threaded rod 83, the finger 82 moves laterally along the threaded rod 83 in one direction or the other, causing the rotation of the console 68, around the axis ZZ 'of the pin 81. The reflector 51 of the antenna and the radio box 53 fixed on the mounting device 60 are then also moved in rotation about the axis ZZ' in the same way.

Pour des réflecteurs d'antenne de diamètre inférieur à un mètre, les efforts dus à l'action du vent sur l'antenne sont moindre. Il devient alors possible d'alléger le dispositif de montage 60, par exemple en réduisant le nombre de brides dans le deuxième moyen de fixation 62, tout en préservant la tenue mécanique de l'antenne. Dans le mode de réalisation précédemment décrit, le deuxième moyen de fixation 62 comporte deux brides de maintien 64B, 64C et une bride 64AB, placée en-dessous, pour la fonction antichute. Pour des réflecteurs d'antenne ayant un diamètre d'ouverture de 30 cm ou 65 cm par exemple, on peut utiliser seulement une bride de maintien et la bride antichute.For antenna reflectors with a diameter of less than one meter, the forces due to the action of the wind on the antenna are less. It then becomes possible to lighten the mounting device 60, for example by reducing the number of flanges in the second fixing means 62, while preserving the mechanical strength of the antenna. In the embodiment described above, the second attachment means 62 comprises two holding flanges 64B, 64C and a flange 64AB, placed below, for the fall arrest function. For antenna reflectors with an opening diameter of 30 cm or 65 cm, for example, only a holding flange and the fall arrest flange may be used.

Bien entendu, la présente invention n'est pas limitée aux modes de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art sans que l'on s'écarte de l'esprit de l'invention. En particulier, on pourra sans sortir du cadre de l'invention adapter le nombre et la résistance mécanique des pièces du dispositif de montage en fonction des propriétés mécaniques d'antennes ayant notamment des réflecteurs de différents modèles et diamètres. On pourra aussi modifier légèrement la forme géométrique des pièces dans la mesure où cela n'affecte pas leur fonction et leur coopération avec les autres pièces.Of course, the present invention is not limited to the embodiments described and shown, but it is capable of many variants accessible to those skilled in the art without departing from the spirit of the invention. In particular, without departing from the scope of the invention, the number and the mechanical strength of the parts of the mounting device can be adapted according to the mechanical properties of antennas having in particular reflectors of different models and diameters. We can also slightly modify the geometric shape of the parts as it does not affect their function and their cooperation with other parts.

Claims (9)

  1. A mounting system for mounting an antenna that has a parabolic reflector (1) on a vertical cylindrical mount (2), comprising a mounting device that comprises at least
    - a first means of fastening (61) the mounting device onto the reflector (1) of the antenna,
    - a second means of fastening (62) the mounting device onto the reflector (1) of the antenna,
    - a means of linking (63) the first means of fastening and the second means of fastening,
    characterized in that, considering a vertical plane (6) tangent to the top (4) of the parabola of the reflector and perpendicular to the Y-Y' axis of the parabola, the X-X' axis of the vertical cylindrical mount is included within the tangent plane (6) or in the domain (7) located on the side of the reflector of the antenna relative to the tangent plane.
  2. A mounting system according to claim 1, where in the first means of fastening comprises an interface intended to mate with a radio box, in such a way that the reflector, the interface, and the radio box are aligned along the Y-Y' axis of the reflector when the antenna is mounted.
  3. A mounting system according to claim 2, wherein the means of linking comprises a side member, fastened to the interface, which extends perpendicular to the Y-Y' axis.
  4. A mounting system according to claim 3, wherein the means of linking further comprises a console mating with the side member.
  5. A mounting system according to one of the preceding claims, wherein the means of linking comprise of a means of tilt adjustment.
  6. A mounting system according to claim 5, wherein the means of tilt adjustment comprise a threaded rod mating with a tab to produce a rotational motion around a shaft with axis Z-Z' perpendicular to the Y-Y' axis of the reflector.
  7. A mounting system according to one of the preceding claims, wherein the second means of fastening comprises a means of azimuth adjustment in the horizontal plane.
  8. A mounting system according to claim 5, wherein the means of azimuth adjustment comprises a looped rod supported by the console and fastened onto a lower flange of the second means of fastening.
  9. A mounting system according to one of the preceding claims, wherein the second means of fastening comprises a fall-arresting means comprising a collar linked to a flange of the second means of fastening.
EP12306187.1A 2012-09-28 2012-09-28 System for mounting an antenna on a cylindrical bracket Active EP2713435B8 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12306187.1A EP2713435B8 (en) 2012-09-28 2012-09-28 System for mounting an antenna on a cylindrical bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12306187.1A EP2713435B8 (en) 2012-09-28 2012-09-28 System for mounting an antenna on a cylindrical bracket

Publications (3)

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EP2713435A1 EP2713435A1 (en) 2014-04-02
EP2713435B1 true EP2713435B1 (en) 2018-04-11
EP2713435B8 EP2713435B8 (en) 2018-05-16

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Publication number Priority date Publication date Assignee Title
EP2953205B1 (en) * 2014-06-06 2021-04-07 Alcatel- Lucent Shanghai Bell Co., Ltd A fixing system for fixing a structure on another structure
WO2016089996A1 (en) * 2014-12-02 2016-06-09 Commscope Technologies Llc Antenna mount with vertical tool access

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Publication number Priority date Publication date Assignee Title
DE2618120C2 (en) * 1976-04-26 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Housing for accommodating structural units and devices from radio relay systems
GB2097595B (en) * 1981-04-29 1984-10-24 Stromberg Greest Ltd Television aerials
US6342870B1 (en) * 1999-03-12 2002-01-29 Harris Corporation Antenna frame structure mounting and alignment
US6262691B1 (en) * 1999-09-16 2001-07-17 Endgate Corporation Antenna mounting assembly with installation tool
BRPI0605684A (en) * 2006-12-08 2008-07-29 Gustavo De Oliveira Andrada system for calibration and regulation of satellite and radio transmitter and receiver

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EP2713435B8 (en) 2018-05-16

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