ES2964765T3 - Wrapping device for a mobile telephone mast - Google Patents

Abstract

A casing device (10) for a mobile telephone mast (104) contains at least one flexible casing (12, 26) with a lower edge region (18, 32) and an upper edge region (14, 28). At least one upper mounting device (40, 60) and at least one lower mounting device (52, 70) can be fixed to the mobile telephone mast (104) with a mast side end of several fastening elements (42 , 70). 54, 62, 72). The ends of the fastening elements (42, 54, 62, 72) facing away from the mast are connected to at least one fastening element (46, 56, 64, 76) of the respective fastening device (40, 52, 60, 70). ). . In the assembled state, the at least one clamping element (46, 64) of the upper clamping device (40, 60) is connected to the upper edge area (14, 28) of the flexible housing (12, 26) and At least one clamping element (56, 76) is operatively connected to the lower clamping device (52, 70) with the lower edge area (18, 32) of the flexible housing (12, 26). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Wrapping device for a mobile telephone mast

Technical area

The present invention relates to a wrapping device for a mobile telephone mast having the features of claim 1, and to a mobile telephone mast for holding a plurality of mobile telephone transmission antennas according to the preamble of claim 8.

State of the art

In the field of mobile telephone technology, it is known to use base stations as stationary devices for the transmission of radio signals, which include an antenna mount for typically holding a plurality of transmit antennas. A common embodiment of this type of antenna support is a free-standing tubular steel frame. Since antenna masts are placed in high and therefore exposed locations, their technical nature often stands out strongly in the surroundings. For this reason, in urban areas, for example, antenna support coverings are used, which are placed on the antenna support as a separate frame and which can be made as false chimneys made of glass fiber reinforced plastic. Coatings of this type require considerable effort in the manufacture of molding tools. Due to the normally exposed location of the installation locations of the antenna supports, the transmit antennas are exposed to environmental influences and without the use of a coating they are unprotected from the elements and therefore must be protected by means of enclosures with a specified IP protection class.

Therefore, the technical field of coated antenna carriers, especially in mobile phone technology, still offers room for improvement.

Documents WO 2014/140580 A1, US 2013/255166 A1, US 2013/113680 A1 and WO 2015/023364 A1 show wrapping devices known in the state of the art.

Objective of the invention

Therefore, the present invention is based in particular on the objective of providing a covering of an antenna support, in particular for mobile telephone technology, having a simple construction, by which the effort of creating tools for installation can be avoided. molding, and can be easily installed and flexibly designed and sized.

Disclosure of the invention

According to the invention, the object is achieved by the features of claim 1. Furthermore, particularly advantageous configurations of the invention are described in the dependent claims.

It should be noted that the individual features listed in this description may also be combined with each other in any technically useful manner and represent other configurations of the invention.

The mobile telephone mast wrapping device according to the invention includes at least two flexible casings which, in an installed state, are made in the form of at least a predominant part of a straight elliptical cylinder and each has a lower edge region and a top edge region.

Furthermore, the wrapping device includes at least one upper clamping device and at least one lower clamping device, respectively, each of which extends substantially in a plane, each of which is attachable to the mobile telephone mast. by a mast-side end of a plurality of fastening elements, and the anti-mast oriented ends of the fastening elements are attached to at least one fastening element of the respective fastening device, which extends in a direction circumferential of the respective plane along at least a part of the circumference. In this case, the sum of the extension of all the fastening elements constitutes a predominant part of the circumference. In the installed state, the at least one fastening element of the upper fastening device is operatively attached to the upper edge region of the flexible casing and the at least one fastening element of the lower fastening device is operatively attached to the region of the bottom edge of the flexible casing.

For the purposes of the invention, a "flexible" envelope should be understood, in particular, as an envelope made of a sheet-like material that, when independent in a direction transverse to the surface, can absorb an external force that is only a small fraction, for example less than 1%, of an external force that can be maximally absorbed by the sheet-like material in directions within the surface.

For the purposes of the invention, "straight elliptical cylindrical shape" should be understood, in particular, the shape of a cylindrical shell whose central axis is arranged perpendicular to its base surface, where the base surface has an elliptical shape and, in In particular, it may have a circular shape.

In this context, the term "operationally linked" should be understood to mean that the operatively linked objects are connected to each other in such a way that the transmission of a force between the objects is possible. Transmission can take place either by direct or indirect contact, through at least one intermediate element.

For the purposes of the invention, the term "plurality" refers in particular to a number of at least two.

The proposed wrapping device provides a coating of an antenna mount for mobile communication technology, which avoids the need for molding tools, is easy to install and can be flexibly configured and sized. The flexible casing of the wrapping device can protect the antenna mount, and any transmitting antennas attached to it, from environmental and weather influences. In suitable embodiments, the wrapping device may cause the mobile telephone mast to blend into its surroundings, thereby making it more discreet.

According to the invention, the wrapping device comprises at least two fixing devices, each of which has a plurality of fixing elements operatively linked between the support element or elements and a respective one of the plurality of fixing elements of the wrapping device. bottom fastening, and operatively attached to the bottom edge portion in a plurality of positions in the circumferential direction. Alternatively, the fastening elements of the plurality of fastening elements are operatively joined together between the support element or support elements and a respective fastening element of the plurality of fastening elements of the upper fastening device and operatively joined to the upper edge portion in a plurality of positions in the circumferential direction.

In this way, the at least one flexible casing can be applied uniformly in the respective positions in the circumferential direction with a force directed along a generatrix of the right elliptical cylinder, i.e., parallel to a central axis of the cylinder, thereby that the flexible casing is brought to a fixing state. This can give the impression of a self-contained wrapper, while eliminating the effort of molding tooling.

According to the invention, the fastening elements of the fastening devices are embodied as threaded screw elements which, in the installed state, are each in mechanical coupling with another threaded screw element of one of the fastening elements and a respective threaded screw element of one of the fastening elements. In this way, a very uniform adjustment of the forces acting along the generatrices of the right elliptical cylinder at the respective positions in the circumferential direction can be made possible. Threaded elements can be, among others, a threaded screw, a threaded rod, a threaded nut or a through hole.

In preferred embodiments of the wrapping device, the flexible wrappers each have at least one bead disposed in the lower edge region or in the upper edge region. The fastening device closest to the at least one weatherstripping includes a weatherstripping rail for receiving the weatherstripping in the installed state, whereby an operative connection is established between the corresponding edge region and the fastening element of the arranged fastening device. closest.

By using weatherstripping and weatherstripping rails, the operative connection between the edge region in question and the clamping element of the closest arranged clamping device can be established in a particularly structurally simple manner.

Preferably, the flexible wrappers may each have a trim in the bottom edge region as well as in the top edge region. In this way, it is especially easy to construct effective joints between the fastening element of the upper fastening device and the upper edge region of the respective flexible casing and between the fastening element of the lower fastening device and the lower edge region of the respective flexible envelope.

Preferably, each of the flexible envelopes comprises at least one zipper aligned along the entire length of a generatrix of the straight elliptical cylinder and adapted to completely and reversibly divide the respective flexible envelope along the generatrix. This can greatly simplify the installation of the flexible wrap. For the purposes of the invention, the term "intended for this purpose" should be understood in particular as specially designed or arranged for this purpose.

In preferred embodiments of the casing device, the flexible casings each comprise at least one passage opening through which a fluidic connection is established between an interior space enclosed by the respective flexible casing and the external environment. In this way, an air flow passing through the closed interior space due to natural convection or forced by a fan device can be directed to achieve a desired temperature profile within the interior space.

Preferably, each of the flexible wrappers has an outer surface configured to receive ink. This allows the outer surface of the respective flexible casing to advantageously adapt to an environment of the mobile telephone mast. For example, the outer surface may be printed with a camouflage pattern that allows the mobile telephone mast to be integrated into a natural environment, such as a wooded area.

As an example of the special design of the outer surface, the well-known corona treatment can be mentioned, with which the surface is modified by an electrochemical process in a way favorable for the absorption of the printing ink. However, other methods may also be used for this purpose that appear suitable to the person skilled in the art.

In preferred embodiments of the wrapping device, the outer surface of each of the flexible wrappers has a coating comprising a predominant amount of polyvinyl chloride (PVC). For the purposes of the invention, "predominant proportion" should be understood, in particular, a proportion greater than 50% by volume, preferably greater than 70% by volume and, particularly preferably, greater than 90% by volume. In particular, the term is intended to include the possibility that the coating consists entirely, that is, 100% by volume, of polyvinyl chloride.

According to the invention, the wrapping device is provided with at least two flexible casings which, in the installed state, each have the shape of at least a right elliptical cylinder having an identical cross-sectional area, each having a region of bottom edge and a top edge region, and which, in the installed state, are arranged one above the other, adjacent to each other and concentrically. Each of the at least two flexible covers can be attached to the mobile telephone mast with an upper clamping device and a lower clamping device. In this way, mobile telephone masts with a particularly long vertical extension length can be coated.

According to the invention, at least two fastening devices are provided, each with a plurality of fastening elements, each of the at least two fastening devices being associated with one of the at least two flexible casings.

The fixing elements of the respective fixing device are operatively joined between the fastening element or elements and each of a fastening element of the plurality of fastening elements of the upper fastening device in the flexible casing, and are operatively attached to the upper edge portion in a plurality of positions in the circumferential direction.

The fixing elements of the respective fastening device are operatively joined between the support element or elements and a respective fastening element of the plurality of fastening elements of the lower fastening device in the lower flexible casing, and are operatively attached to the lower edge portion in a plurality of positions in the circumferential direction.

In this way, the fixation of the flexible casings using the fixing devices can be carried out comfortably and with sufficient space for handling.

In another aspect of the invention, a mobile telephone mast is provided for supporting a plurality of mobile telephone antennas. The mobile telephone mast is provided with an embodiment of the proposed wrapping device, wherein the respective upper clamping device and the respective lower clamping device are fixed to the mobile telephone mast with the mast side end of the plurality of mounting elements.

A mobile telephone mast of this type is prepared to receive the flexible casings of the proposed casing device. The advantages described in relation to the wrapping device are fully transferable to the mobile telephone mast.

Drawings

Further advantages arise from the following description of the drawing. The drawing shows an example of an embodiment of the invention. The drawing, description and claims contain numerous combined features. The expert will also be able to consider the characteristics individually and combine them into other useful combinations.

It shows:

Fig. 1 a schematic representation of a possible embodiment of the wrapping device of a mobile telephone mast according to the invention in an installed state in an elevated, perspective view, Fig. 2 a schematic representation of a lower clamping device with fixing device for securing the lower flexible casing on the mobile telephone mast,

FIG. 3 is a schematic representation of an upper clamping device with a fixing device for holding the upper flexible casing on the mobile telephone mast, and FIG.

4 shows a schematic representation of a lower clamping device for holding the upper flexible casing and an upper clamping device for holding the lower flexible casing on the mobile telephone mast.

In the various figures, the same parts are always provided with the same reference symbols, so they are generally described only once.

Description of the embodiment example

Fig. 1 shows a schematic representation of a possible embodiment of the wrapping device 10 of a mobile telephone mast 104 according to the invention in an installed state in an elevated, perspective view. The mobile telephone mast 104 has a tubular steel frame 106 with a square footprint and includes four vertical tubes 108 placed vertically at the corners of a square and interconnected by evenly spaced groups of cross tubes 110, each forming four levels. The mobile telephone mast 104 is provided to support a plurality of transmit antennas (not shown) for mobile telephones.

The casing device 10 includes two flexible casings 12, 26, each of which, when installed, has the shape of a right elliptical cylinder with an identical circular cross-sectional area, and which are arranged one above the other, adjacent to each other and concentrically.

The two flexible casings 12, 26 have a content of more than 95% by volume of polyethersulfone (PES). An outer surface of each of the two flexible casings 12, 26 includes a coating comprising a predominant amount of polyvinyl chloride (PVC). The outer surface of each of the two flexible casings 12, 26 is intended to receive printing ink and is prepared, for example by corona treatment, for printing, which is not shown in Fig. 1.

The two flexible envelopes 12, 26 each have an upper edge region 14, 28 and a lower edge region 18, 32. Each of the two flexible envelopes 12, 26 contains, both in the upper edge region 14 , 28 as in the lower edge region 18, 32, a bead 16, 20, 30, 34 that runs completely around it in a circumferential direction (Figures 2, 3 and 4). Each of the weatherstripping 16, 20, 30, 34 has, in a manner known per se, a weatherstripping bead (not shown) which is welded to the material of the respective flexible casing 12, 26 for the purpose of fixation.

Referring to Fig. 1, each of the two flexible casings 12, 26 is provided with a rack 22, 36 aligned along the entire length of a generatrix of the straight elliptical cylinder and adapted to divide completely and reversibly the flexible envelope 12, 26 along the generatrix. In particular, the zipper 22, 36 is intended to be opened before assembly in order to facilitate an installation of the respective flexible casing 12, 26.

Each of the two flexible casings 12, 26 has two through holes 241, 242, 381, 382 vertically spaced apart and located in the same position in the circumferential direction. Through the through holes 241, 242, 381, 382, fluidic connections are established between an internal space enclosed by the respective flexible envelope 12, 26 and the external environment. By introducing a directional forced flow of air into the interior by means of a fan, the injected air can be diverted through the through holes 241, 242, 381, 382 to achieve a desired temperature profile along the tubular steel frame. 106 of the mobile telephone mast 104 to cool the transmission antennas.

The two flexible casings 12, 26 are each attached to the mobile telephone mast 104 by an upper clamping device 40, 60 and a lower clamping device 52, 70 of the casing device 10.

Fig. 2 shows a schematic illustration of a lower clamping device 70 for securing the lower flexible casing 26 to the mobile telephone mast 104.

The lower clamping device 70 is arranged substantially in a horizontal plane and has a plurality of fastening elements 72, which are formed as profile rails with a rectangular profile, two of which profile rails are shown in Fig. 2. Furthermore , in the other transverse tubes 110 of the same row formed by the transverse tubes 110, profile rails of identical design are arranged. Each of the fixing elements 72 has a mast-side end with a semicircular recess 74 that is adapted to a diameter of the cross tubes 110. Each of the fixing elements 72 is welded to one of the cross tubes 110 in positions along one edge of the semicircular notch 74.

The lower clamping device 70 further includes four clamping elements 761, 762 each arranged in a common horizontal plane in a sector between two vertical tubes 108. The clamping elements 761, 762 are made as metal angular profiles curved at 90°, such that in the installed state shown in fig. 2, an angular foot is aligned along the circumferential direction and an angular foot is aligned on an upper side of the fastening member 761, 762 and horizontally. A sum of the extension of the four fastening elements 761, 762 covers a predominant part of the circumferential distance in the circumferential direction. A weather stripping rail 78 of the lower clamping device 70 is fixed to the angled leg aligned along the circumferential direction by means of screw elements (not shown). In the installed state, the weatherstripping rail 78 serves to receive the weatherstripping 34 or the weatherstripping bead fixed in the region of the lower edge 32 of the lower flexible casing 26.

The wrapping device 10 includes an upper clamping device for tensioning the upper flexible casing 12 and a lower clamping device for tensioning the lower flexible casing 26, each of which has a plurality of fastening elements that are formed as clamping elements. threaded screw and may be configured in a useful combination in the form of a threaded screw, threaded rod, nut or through hole.

The lower clamping device 94 for securing the lower flexible casing 26 is shown in Fig. 2. Each of the fixing elements 72 of the lower clamping device 70 has one end facing away from the mast, which is attached to one of the four fastening elements 761, 762, wherein one of the tensioning elements 96 is arranged operatively connected between one of the fastening elements 76 and an end facing away from the mast of one of the fastening elements 72 with the purpose of making this union.

In the particular embodiment shown in Fig. 2, the operational connection is made by means of a threaded screw 98 that is passed from below through the through holes 100 in the end facing away from the mast of one of the elements of fixation 72 and on the horizontally oriented angular leg of one of the fastening elements 76. Operative joints of this type are established in the circumferential direction in a number of positions totaling eight. In these positions, a distance between the respective fastening element 76 and the respective fastening element 72 can be varied by means of a nut 102 in mechanical engagement with the threaded screw 98. In this way, operative connections are established between the fastening elements. 76 of the lower clamping device 70 and the lower edge region 32 of the flexible casing 26 arranged at the bottom.

Fig. 3 shows a schematic illustration of the upper clamping device 40 for securing the upper flexible casing 12 to the mobile telephone mast 104.

The upper clamping device 40 is arranged substantially in a horizontal plane and has a plurality of fastening elements 42, which are formed as profile rails with a rectangular profile, two of which profile rails are shown in Fig. 3. Furthermore , in the other transverse tubes 110 of the same row formed by the transverse tubes 110, profile rails of identical configuration are arranged. Each of the fastening elements 42 has a mast-side end with a semicircular recess 44 that adapts to a diameter of the cross tubes 110. Each of the fastening elements 42 is welded to one of the cross tubes 110 in positions along one edge of the semicircular recess 44.

The upper clamping device 40 further includes four clamping elements 461, 462, each arranged in a common horizontal plane in a sector between two vertical tubes 108. The clamping elements 461, 462 are designed as 90° curved metal angular profiles. °, so that in the installed state shown in Fig. 3 an angular leg is aligned along the circumferential direction and an angular leg is aligned on a bottom face of the fastening element 461, 462, and horizontally. A sum of the extension of the four retaining elements 461, 462 covers a significant part of the circumferential distance in the circumferential direction. A weatherstripping rail 48 of the upper clamping device 40 is fixed to the angular leg aligned along the circumferential direction by means of screw elements 50. In the installed state, the weatherstripping rail 48 serves to receive the weatherstripping 16 or the weather stripping cord secured to the upper edge region 14 of the upper flexible casing 12.

The upper fixing device 80 for fixing the upper flexible casing 12 is shown in Fig. 3. Each of the fixing elements 42 of the upper fixing device 40 has an end facing away from the mast, which is attached to one of the four fixing elements 461, 462, where, to make this connection, one of the fixing elements 82 is arranged between one of the fixing elements 461, 462 and an end of one of the fixing elements 42 oriented in direction opposite to the mast in an operatively united manner.

In the particular embodiment shown in Fig. 3, the operative connection is made by means of a threaded bolt 84 which is passed from above through the through holes 86 at the end of one of the fixing elements 42 oriented in the opposite direction. to the mast and is screwed into a weld nut 88 arranged on the horizontally aligned angular leg of one of the fastening elements 461, 462. To secure it, the threaded bolt 84 is equipped with an additional nut 90 and a split pin 92. The Operative joints of this type are established in the circumferential direction in a number of positions totaling eight. In these positions, the distance between the respective fastening element 461, 462 and the respective fastening element 42 can be varied by means of the threaded screw 84 which is in mechanical contact with the welding nut 88. In this way, operational connections are established. between the fastening elements 461, 462 of the upper fastening device 40 and the upper edge region 14 of the folding wrapper 12 arranged on top.

Fig. 4 shows a schematic representation of the lower holding device 52 of the wrapping device 10 for holding the upper flexible sleeve 12 and the upper holding device 60 of the wrapping device 10 for holding the lower flexible sleeve 26 on the telephone mast. mobile 104.

The lower clamping device 52 for holding the upper flexible casing 12 and the upper clamping device 60 for holding the lower flexible casing 26 are of mirror construction. Therefore, its construction can be described largely based on one of the clamping devices 52, 60 without reference to its assignment.

The fastening device 52, 60 is arranged substantially in a horizontal plane and includes a plurality of fastening elements 54, 62 formed as a prismatic body having a square cross-sectional area and is arranged in one of the vertical tubes 108, and In Fig. 4 two prismatic bodies are shown for each of the holding devices 52, 60. In addition, prismatic bodies of identical shape are arranged in the other vertical tubes 108.

The clamping device 52, 60 further includes a clamping element 56, 64 that extends along the entire circumference in the circumferential direction. The fastening member 56, 64 is formed as a short tube section having a circular cross-sectional area corresponding to the circular cross-sectional area of the straight elliptical cylinder of the wrapping device 10. A weather stripping rail 58, 66 is fixed to the fastening element 56, 64 by threaded elements 59, 68. In the installed state, the weatherstripping rail 58, 66 serves to receive the weatherstripping 20 or the weatherstripping cord fixed to the lower edge region 18 of the flexible casing 12 more upper or to receive the weatherstripping 30 or the weatherstripping bead attached to the upper edge region 28 of the lowermost flexible casing 26.

Each of the fastening elements 54, 62 has a threaded hole (not shown) with which a screw element carried from the outside is mechanically engaged through a through hole in the fastening element 56, 64. The fastening elements Fixings 54, 62 are configured in such a way that, by means of the screwed joints formed by the threaded hole and the screwing element, a positive and non-positive connection is made with the corresponding vertical tube 108. In this way, the corresponding fastening element 59, 64 is firmly attached to the mobile telephone mast.

List of reference symbols

10 wrapping device 72 fixing element

12 flexible casing 74 semicircular notch

14 top edge region 76 fastening element

16 weatherstrip 78 weatherstrip rail

18 lower edge region 80 upper clamping device

20 weather stripping 82 fixing element

22 rack 84 threaded screw

24 through hole 86 through hole

26 flexible casing 88 welded nut

28 top edge region 90 nut

30 weatherstrip 92 split pin

32 lower edge region 94 lower fixation device

34 weather stripping 96 fixing element

36 rack 98 threaded screw

38 through hole 100 through hole

40 upper clamping device 102 nut

42 fixing element 104 mobile telephone mast

44 semicircular cutout 106 tubular steel frame

46 clamping element 108 vertical tube

48 weatherstrip rail 110 cross tube

50 threaded element

52 lower clamping device

54 fastening element

56 fastening element

58 weather stripping rail

59 threaded element

60 top clamping device

62 fastening element

64 fastening element

66 weather stripping rail

68 threaded element

70 bottom clamping device

Claims (8)

1. Wrapping device (10) for a mobile telephone mast (104), comprising - at least two flexible casings (12, 26) which, in the installed state, are each made in the shape of a right elliptical cylinder with an identical cross-sectional area, each having a lower edge region (18, 32) and an upper edge region (14, 28) which, in the installed state, are arranged one above the other, contiguous and concentrically and which can each be fixed to the mobile telephone mast (104) by an upper holding device (40, 60) and a lower holding device (52, 70) of the wrapping device (10), where in each case a respective lower holding device (52, 70) extending substantially in a plane, can be fixed in each case with a mast side end of a plurality of fixing elements (42, 54, 62, 72) of the wrapping device, to the mobile telephone mast (104), and the ends, oriented in the opposite direction to the mast, of the fixing elements (42, 54, 62, 72) are attached to at least one fixing element (46, 56, 64, 76) of the respective fastening device (40, 52, 60 , 70) that extends in the circumferential direction of the respective plane at least along a part of the circumference, where a sum of the extension of all the fastening elements (46, 56, 64, 76) forms a predominant part of the circumference and, in the installed state, the at least one fastening element (46, 64) of the upper fastening device (40, 60) is operatively attached to the upper edge region (14, 28) of the flexible casing (12, 26) and the at least one fastening element (56, 76) of the lower fastening device (52, 70) is operatively attached to the lower edge region (18, 32) of the flexible casing (12, 26). ), characterized because - at least two fastening devices (80, 94) each having a plurality of fastening elements (82, 96), each of the at least two fastening devices (80, 94) being associated with one of the at least two flexible casings (12, 26), and the fixing elements (82) of the respective clamping device (80) being arranged in operative connection, in the case of the flexible casing (12) arranged above, between the fastening elements (56) and a respective fastening element (42, 62) of the plurality of fastening elements (42) of the upper fastening device (40) and are operatively attached to the upper edge region (14) in a plurality of positions in the circumferential direction, in the case of the flexible lower casing (26) are arranged in operative connection between the fastening element (76) and a respective fastening element (72) of the plurality of fastening elements (72 ) of the lower clamping device (70) and are operatively attached in a plurality of positions in the circumferential direction to the region of the lower edge (32), where the fixing elements (82, 96) of the clamping devices (80 , 94) are made as threaded screw elements which, in the installed state, are each in mechanical coupling with another threaded screw element of one of the fastening elements (46, 56, 64, 76) and an element of respective threaded screw of one of the fixing elements (42, 54, 62, 72). 2. A wrapping device (10) according to claim 1, characterized because each flexible envelope (12, 26) has at least one bead (16, 20, 30, 34) which is arranged in the region of the lower edge (18, 32) or in the region of the upper edge (14, 28), and because the fastening device (40, 52, 60, 70) located closest to the at least one weatherstripping (16, 20, 30, 34) includes a weatherstripping rail (48, 58, 66, 78) to receive the weatherstripping (16, 20, 30, 34) in the installed state, as a result of which an operative connection occurs between the corresponding edge region (14, 18, 28, 32) and the fastening element (46, 56, 64 , 76) of the nearest holding device (40, 52, 60, 70). 3. Wrapping device (10) according to any one of the preceding claims, characterized because each flexible envelope (12, 26) has at least one zipper (22, 36) aligned along the entire length of a generatrix of the straight elliptical cylinder and intended to completely and reversibly divide the flexible envelope (12, 26) along the generatrix. 4. Wrapping device (10) according to any one of the preceding claims, characterized because each flexible envelope (12, 26) has at least one through hole (241, 242, 381, 382) through which a fluid communication is established between an interior space enclosed by the flexible envelope (12, 26) and the environment abroad. 5. Wrapping device (10) according to any one of the preceding claims, characterized because each flexible wrapper (12, 26) has an outer surface adapted to receive ink. 6. Wrapping device (10) according to any one of the preceding claims, characterized because each flexible envelope (12, 26) has a predominant proportion of polyethersulfone. 7. Wrapping device (10) according to any one of the preceding claims, characterized because The outer surface of each flexible casing (12, 26) has a coating comprising a predominant proportion of polyvinyl chloride. 8. Mobile telephone mast (104) to support a plurality of mobile telephone transmitting antennas, characterized in that a wrapping device (10) according to any one of the preceding claims is placed on the mobile telephone mast (104) with the mast-side end of the plurality of fixing elements (42, 54, 62, 72) .