FR2780816A1 - Antenna support for equipment enabling radio connection between a portable telephone and a telephone network - Google Patents

Abstract

The support includes a mast (2) fixed by brackets on a support structure (20), so that the antennae (4) ensures the required radio coverage. There are connectors (10) for connecting the antennae to the mast. The brackets are movable and has an H-shaped form whose fixed part (24,26,100) is connected to the mast, with the movable part (30,101) being separated from the fixed part for easily dismantling the mast from the support structure.

Description

Antenna support device for equipment providing a link

  radio link between at least one mobile phone and a telephone network. The present invention relates to a support device

  antenna for equipment providing a radio link

  between at least one cell phone and a network

telephone.

  It finds a general application in the installation of antenna

  for radiotelephone equipment on urban or rural site.

  Increasingly higher constraints, particularly in terms of discretion and aesthetics, are imposed during installation

  radiotelephone antenna on urban or rural sites.

  A known solution consists in directly fixing a mast

  antenna support on the facades of buildings.

  However, this solution induces at least three drawbacks during maintenance actions. The first drawback

  lies in the high costs involved in the use of

  tion of nacelles to access the facade. The second drawback

  deny is of a security nature in the event of intervention by a staff (called "outfielder") working in abseiling on the facades. The third drawback is the refusal to intervene directly (piercing, degradation) on the facades and their

  possible coating (waterproofing, embrittlement of the

  ges, ...) which can be opposed by the owners of the sites. In order to remedy these drawbacks, solutions based on tilting support have been developed. However, these solutions generally have the disadvantage of being

expensive in supply and installation.

  The present invention provides a solution to this problem.

  It relates to an antenna support device for team-

  ment ensuring a radio link between at least one

  mobile phone and a telephone network, said device

  tif support being of the type comprising: - a mast of predetermined size; fixing means suitable for fixing said mast to a predetermined support structure so that the antenna provides chosen radio coverage, and

  - connecting means for connecting the antenna to said mast.

  According to a general definition of the invention, the fixing means comprise hinge-forming means, the fixed part of which is linked to the support structure and the mobile part of which is linked to the mast, the mobile part being able to be separated from the fixed part to dismantle easily the mast of

the supporting structure.

  Thus, during a maintenance action, the mast is susceptible to

  ble to be dismantled from the carrying structure to be brought to a more accessible area of the carrying structure, which facilitates intervention on the antenna, its cables

and / or its connectors.

  In practice, the supporting structure is of the high point type, such as a roof, pylon, chimney, acrotery, lighthouse, castle

  of water, building facade, silo, etc.

  According to a first embodiment of the invention, the fixed part of the hinge-forming means comprises at least one hinge with a male plug, fixed to the support structure, and the mobile part of the hinge-forming means comprises at least one female plug fixed to the mast, and suitable for cooperating with

a corresponding male plug.

  According to a second embodiment of the invention, the fixed part of the hinge-forming means comprises at least one hinge with a female plug fixed to the support structure, and the mobile part of the hinge-forming means comprises at least one male plug fixed to the mast , and able to cooperate with a

corresponding female plug.

  In practice, the female plug is of the sheath type with the diameter of the mast, while the male part is formed by

one end of the mast.

  Advantageously, the device comprises means for blocking / unblocking the cooperation between the male plug and the

  female plug of the means forming a hinge.

  Thus, during a maintenance action, the cooperation between the male and female plugs may be released to allow the mast to be separated from the support structure and thus allow the maintenance service to bring said mast to an accessible area of the supporting structure in order to

  facilitate the intervention of the maintenance department.

  For example, the locking / unlocking means are of the needle type. Advantageously, at least one handle is placed at a chosen location on the mast in order to improve the grip of the mast. According to another aspect of the invention, a fall arrest cable is provided between one end of the mast and the structure

carrier.

  Similarly, a gripping cable connects the ends of the mast,

  to each other, to facilitate gripping of the mast.

  According to another aspect of the invention, means forming a marker for adjusting the azimuth of the antenna are provided according to the invention. For example, these marker means comprise a removable strip disposed between the fixed part and the mobile part of the hinge means and

  has a finger pointed on a graduated scale.

  In practice, a plate is fixed to the supporting structure, the fixed part of the hinge-forming means being linked to

said plate.

  In practice, the antenna is linked to the mast by means of articulation movable relative to an axis perpendicular to

the longitudinal axis of the mast.

  Other characteristics and advantages of the invention

  will appear in the light of the detailed description below.

  after, drawings in which: - Figure 1 schematically shows the fixed part of the hinge means attached to the supporting structure according to the invention; - Figure 2 shows schematically the antenna support mast and the movable part of the hinge means linked to said mast according to the invention; - Figure 3 shows in detail the female plugs welded to the mast according to the invention; - Figure 4 shows in detail a male plug fixed to the supporting structure according to the invention; - Figure 5 schematically shows the locking / unlocking means of the cooperation between the male and female plugs according to the invention; - Figure 6 schematically illustrates the mark for adjusting the azimuth of the antenna and comprising a removable strip according to the invention; - Figure 7 schematically illustrates another embodiment in which the fixed part of the hinge means consists of a sheath; Figures 8 and 9 illustrate the mounting / dismounting of the support device of Figure 7 according to the invention; and - Figures 10 and 11 illustrate examples of fixing the

  front support device according to the invention.

  The drawings essentially contain elements of a certain character. As such, they will not only

  to better understand the detailed description below

  after, but also contribute, if necessary, to the definition

of the invention.

  Referring to Figures 1 and 2, the antenna support device comprises a mast 2 of predetermined dimensions, for example a diameter of 60 mm, a thickness of 3.2 mm, and a

  total length of the order of 2.50 m.

  The mast supports an antenna 4 of the radiotelephone type, for example an antenna dedicated to the GSM network (Special Group

Mobile), DCS 1800 or TETRA.

  The antenna 4 is linked to the mast 2 by a high fixing 6 and a

low fixing 8.

  The fastener 6 comprises a bracket 10 articulated around a

  axis 12 perpendicular to the longitudinal axis of the mast.

  One of the branches 11 of the bracket 10 is linked to the mast 2 by

  connecting means 15 of the clamping collar type.

  The other branch 13 of the bracket 10 is linked to the upper part of the antenna 4 by connection means 17 of the screw nut type

or the like.

  The bracket 10 is intended to allow the adjustment of the inclination

  origin of the antenna 4 with respect to an axis perpendicular to the longitudinal axis of the mast. This setting is called setting of the

"TILT" of the antenna.

  The bottom fixing means 8 of the antenna include a

  clamping device or similar

  ford. According to the invention, removable fixing means of the hinge type which will be described in more detail below, are suitable for fixing the mast 2 to a terrestrial carrying structure 20. For example, the terrestrial carrying structure 20 is of the high point such as a roof, pylon, chimney, acrotery, lighthouse, water tower, building facade, silo, etc. Advantageously, a plate 22 is fixed to the supporting structure 20. This plate is of size adapted according to the

site, for example 500 / 200mm.

  This plate 22 is fixed for example on the wall of the supporting structure by chosen fixing means, by

  example of fixing means of the screw / nut type.

  With reference to FIG. 10, the plate 22 can also have the shape of an inverted U of which a branch 21 of the U is plated

  on the wall of the facade of the supporting structure 20 (acrotè-

  re), whose other branch 23 of the U is fixed on the other side of the wall of the facade and whose bar 19 of the U is fixed on the edge of the wall. To avoid piercing the facade, it is possible to fix only the branch 23 and the bar 19 to the wall

of the supporting structure.

  The branch 21 is placed on the facade with a possible layer of resilient, or foam, intended to isolate it from the facade. Referring to Figure 11, the plate 22 can be connected to a beam device 16 to avoid direct attachment to the facade. The fixing of the antenna support device according to the invention is thus reported on the horizontal surface 18 of the terrestrial reception structure 20. Two hinges with male plugs 24 and 26 are fixed on the plate 22. For example, the gap between the hinges 24 and 26 is of the order of 400 mm. This difference is chosen on a case-by-case basis according to the conformation of the supporting structure and the necessary structural resistance to be guaranteed for the whole of the

  device (supporting structure and removable support).

  With reference to FIG. 4, each hinge comprises a horizontal branch 25, fixed in the plate 22 and a vertical branch 27 forming the male plug of the hinge. The vertical branch is oriented upwards and fixed to the free end of the horizontal branch. The height of the vertical branch is around 50 mm. For example, the vertical branch 27 is cylindrical with its end cut obliquely.

  It should be noted that under certain conditions (encumbered-

  mast weight) a single hinge may be sufficient to support

the mast 2.

  Referring to Figure 3, the movable part of the hinge means comprises at least one female plug 30 fixed

  on the mast and intended to cooperate with a corresponding male plug

  laying. In the case described with reference to Figures 1 and 2, two female plugs 30 are capable of cooperating respectively with

male plugs 24 and 26.

  For example, each female plug 30 is diamond-shaped.

  With reference to FIG. 5, blocking / unblocking means 32 are provided for blocking the cooperation between the plugs

female and male.

  For example, these locking / unlocking means are of the needle type 32 unscrewable in an opening 33 formed in the

female plug 30.

  In practice, each female plug 30 is welded to the mast 2.

  As a variant, the female plugs are linked to the mast by means of a square, of a metal part penetrating into the mast via a

light or the like.

  With reference to FIG. 6, a plate 50 is provided between a female plug 30 (preferably that which is welded to the upper part of the mast) and the support structure (here the

  plate 22) to facilitate the adjustment of the azimuth of the antenna

born.

  This plate 50 can be removable. It includes a report

  tor 52 to the degree, with larger lines every 5 degrees and a numbered marker every 10 degrees. The rapporteur

52 is engraved or screen printed.

  A finger 54, preferably welded to the hinge 30, is placed opposite the protractor to indicate the relative azimuth of the antenna. Preferably, the tilt (tilt) and the azimuth of the antenna are adjusted according to the invention only by the upper part of the mast. This adjustment does not require dismantling the mast. Dismantling the mast only takes place in practice

only for the change of antenna.

  A fall arrest cable 60 is provided to connect the top of the mast to the fixed part of the supporting structure, in order to avoid the

  material falling during handling.

  Advantageously, handles 70 are provided on the part

  high for easy handling.

  With reference to FIG. 7, a variant of the support device provides for a hinge with a fixed female plug 100 instead of a

  hinge with fixed male plug as with reference to figure 1.

  The fixed female plug 100 is for example of the sheath type whose diameter corresponds substantially to that of the mast 2, while the mobile male part is formed by the end

bass 101 from mast 2.

  A blocking device 105 is provided for blocking the end

  mite 101 from mast 2 in the fixed sleeve 100.

  The sleeve 100 is fixed to the support structure by

  screw / nut type fixing means 106.

  The upper part of the mast is fixed to the supporting structure 20 using a fixing collar 110 comprising a ring 108. The upper fixing of the antenna 4 on the mast is carried out by a square 10 similar to that described in reference to the

figure 2.

  the low fixing of the antenna 4 on the mast is composed of a

mounting bracket 112.

  A cable 107 connects the sheath 100 to the lower end 101 of the

  mast, in order to avoid the fall of the material during handling

tions.

  Another cable 109 connects the antenna to radio equipment

  stick (not shown) located on the supporting structure.

  With reference to FIG. 8, the end 101 of the mast 2 is

  introduced into the sheath 100 mounted on the front.

  With reference to FIG. 9, during a maintenance action, the mast 2 is removed from the sheath 100 and brought back to a

  terrace or other supporting structure accessible for easy

  ter intervention on the antenna, its cables and connectors.

  The support device according to the invention is advantageously easy to set up. In addition, it is very light in the

  since it includes few parts made of metallic materials.

  As a result, such a support device is perfectly suitable for installing antennas on sites that are difficult to

  reach for maintenance personnel.

he

Claims (13)

Claims.   1. Antenna support device for equipment ensuring a radio link between at least one portable telephone and a telephone network, said support device being of the type comprising: - a mast (2) of predetermined dimensions; - fixing means suitable for fixing said mast (2) on a predetermined support structure (20), so that the antenna (4) provides selected radio coverage; connecting means (10) for connecting the antenna (4) to said mast (2), characterized in that the fixing means comprise removable means forming a hinge whose fixed part (24,26,100) is linked to the structure carrier (20) and whose mobile part (30,101) is linked to the mast (2), the mobile part (30,101) can be separated from the fixed part (24,26,100) to easily remove the mast (2) from the supporting structure (20). 2. Device according to claim 1, characterized in that the supporting structure (20) is of the high point type, such as a weight, pylon, chimney, acrotery, lighthouse, water tower, building facade, silo , etc. 3. Device according to claim 1, characterized in that the fixed part of the hinge-forming means comprises at least one hinge with male plug (24, 26) fixed on the support structure (20) and in that the movable part of the means forming hinge comprises at least one female plug (30) fixed on the mast and suitable for cooperating with a corresponding male plug (24.26).   4. Device according to claim 1, characterized in that the fixed part of the hinge-forming means comprises at least one hinge with female plug (100) fixed on the support structure (20) and in that the movable part of the hinge-forming means comprises at least one male plug (101) fixed on the   mast and suitable for cooperating with the female plug (100).   5. Device according to claim 4, characterized in that the fixed female plug (100) is of the sheath type with the diameter of the mast (2), while the movable male part (101) is formed   by one end of the mast (2).   6. Device according to any one of the preceding claims.   cations, characterized in that it comprises blocking / unblocking means (32,33) of the cooperation between the plugs male and female.   7. Device according to claim 6, characterized in that   the locking / unlocking means (32,33) are of the pin type teau.   8. Device according to any one of the preceding claims.   cations, characterized in that at least one handle (70) is arranged at a chosen location on the mast (2) in order to improve gripping the mast (2).   9. Device according to one of the preceding claims,   characterized in that it comprises a fall arrest cable (60)   connecting one end of the mast to the supporting structure.   10. Device according to claim 5, characterized in that it comprises a cable (107) connecting the sheath (100) to the end (101) of the mast.   11. Device according to any one of the preceding   claims, characterized in that it comprises means   forming a marker (50) for adjusting the azimuth of the antenna (4), said marker means comprising a strip disposed between the fixed part and the movable part of the hinge means and having a finger (54) pointed on a graduated scale (52).   12. Device according to any one of the preceding   claims, characterized in that it comprises a plate   (22) fixed to the supporting structure (20), the fixed part (24,26,100) of the hinge means being linked to said plate (22).   13. Device according to claim 12, characterized in that the plate (22) has the shape of an inverted U of which a branch (21) is pressed without fixing on the wall of the facade of the supporting structure (20), the other branch (23) is fixed on the other side of the wall of the facade, and of which   the bar (19) is fixed on the edge of the wall.