EP4199248A1 - Antenna mounting device, related assembly and public transport vehicle - Google Patents

Antenna mounting device, related assembly and public transport vehicle Download PDF

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Publication number
EP4199248A1
EP4199248A1 EP22214111.1A EP22214111A EP4199248A1 EP 4199248 A1 EP4199248 A1 EP 4199248A1 EP 22214111 A EP22214111 A EP 22214111A EP 4199248 A1 EP4199248 A1 EP 4199248A1
Authority
EP
European Patent Office
Prior art keywords
support
base
antenna
vehicle
fixed
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.)
Pending
Application number
EP22214111.1A
Other languages
German (de)
French (fr)
Inventor
Guy DELITOT
George-william JOHNSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SpeedInnov SAS
Original Assignee
SpeedInnov SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SpeedInnov SAS filed Critical SpeedInnov SAS
Publication of EP4199248A1 publication Critical patent/EP4199248A1/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/126—Constructional details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K13/00—Other auxiliaries or accessories for railways

Definitions

  • the present invention relates to a device for fixing an antenna to the chassis of a vehicle.
  • the present invention also relates to an assembly comprising such a fastening device and an antenna, as well as a public transport vehicle equipped with such a fastening device or such an assembly.
  • Antennas are frequently used to allow a vehicle to exchange information with devices located near the vehicle as it moves.
  • these devices are arranged close to the ground along the traffic lanes, and the corresponding antennas are therefore fixed to the lower part of the vehicle chassis, in particular under the chassis.
  • the antenna In order to ensure optimal communication between the antenna and the corresponding ground device, the antenna must be attached in a very controlled way to the vehicle to be optimally positioned, since the information transmitted is often very important for safe operation. of the transportation network. It follows that the positioning of the antenna is optimized by a phase of tests and adjustments, which can last several hours, so as to verify that the communication is sufficient for the transfer of information to be reliable.
  • the antenna is generally fixed close to other devices and devices mounted on the vehicle, to which it limits access since, by nature, the antenna must be arranged on the outside of the vehicle. It follows that, when it is necessary to intervene on one of these devices and devices, this intervention is made difficult by the presence of the antenna, which it is often necessary to dismantle to access the devices arranged behind. However, it is then necessary to restart the test phase to precisely reposition the antenna.
  • a fixing device for an antenna intended to be fixed to an underside of a public transport vehicle
  • the fixing device comprising a base and a support, the base being configured to be attached to the face lower, the support being configured to support the antenna and to be fixed jointly to the antenna and to the base, the support being rotatable relative to the base between a first position and a second position.
  • the mobile support in rotation relative to the base allows access to the space which is located behind the antenna, by pivoting the latter on its support without dismantling it, while ensuring that the antenna is brought back by the same rotation to its initial position and that it is therefore not necessary to repeat a tedious and time-consuming test and adjustment phase to obtain the same degree of precision on the positioning of the antenna as before the rotation .
  • a public transport vehicle in particular a railway vehicle, equipped with a fixing device as previously described, or with an assembly as previously described, the underside of said vehicle facing the ground when the vehicle circulates.
  • FIG. 10 An example of set 10 is shown in figure 1 .
  • the assembly 10 is, for example, on board a public transport vehicle, in particular a railway vehicle such as a power car or a passenger or freight car.
  • the vehicle comprises, in a manner known per se, a frame supporting a bodywork and/or vehicle propulsion means such as an engine.
  • the frame is carried by a set of wheels, in particular by one or more bogies.
  • the wheels are movably mounted directly to the frame without using an intermediate bogie.
  • the Z direction is a vertical direction when the vehicle is traveling on horizontal ground.
  • the X and Y directions are then horizontal directions.
  • the direction Y is a direction of extension of the vehicle, along which the vehicle is intended to move.
  • the orientation of the X and Y directions in the horizontal plane, relative to the rest of the vehicle is liable to vary.
  • the assembly 10 is fixed under the vehicle, in particular under the chassis or under the bodywork.
  • the assembly 10 is fixed to a lower face of the vehicle, in particular of the chassis or of the bodywork, that is to say to a face of the vehicle, of the chassis or of the bodywork which faces the ground when the vehicle is moving.
  • the assembly 10 comprises a fixing device 15 and an antenna 20.
  • the fixing device 15 is configured to be fixed under the vehicle, in particular to the aforementioned underside of the vehicle to fix the antenna 20 to the vehicle.
  • the fixing device 15 comprises a base 25 and a support 30.
  • the base 25 is made of a metallic material, for example steel, but as a variant can be made of one or more different material(s), for example a plastic material.
  • the base 25 is configured to be fixed under the vehicle, in particular to the aforementioned underside.
  • the base 25 is configured to exert on the support 30 a force tending to oppose the weight of the support 30 and the antenna 20, so as to maintain the support 30 and the antenna 20 in position relative to the rest of the vehicle .
  • the base 25 comprises, for example, an attachment portion 35 and at least one arm 40A, 40B, for example two arms 40A, 40B, in particular four arms 40A, 40B, two of which are visible on the figure 1 And 2 .
  • the attachment portion 35 connects the arm(s) 40A, 40B to the underside of the vehicle to hold the arm(s) 40A, 40B in position relative to the rest of the vehicle.
  • the attachment portion 35 is interposed between the arm(s) 40A, 40B and this lower face in the direction Z.
  • the attachment portion 35 is, for example, fixed to this lower face by one or more screws.
  • the base 25 consists of three parts 45, 50 and 55, however the number of parts constituting the base 25 is likely to vary, for example if the base 25 is in one piece.
  • the parts 45, 50 and 55 are each obtained by cutting and/or bending a metal sheet and assembled together so as to form a rigid base.
  • Parts 45 and 55 are offset relative to each other in direction X, and part 50 is interposed between these parts 45 and 55 in direction X and fixed together to these two parts 45, 55 to secure them .
  • Parts 45 and 55 are, for example, mirror images of each other with respect to a plane parallel to the Z and Y directions.
  • Each of the parts 45, 55 is fixed to the underside of the vehicle at one of its ends, the other end being connected to two arms 40A, 40B.
  • each arm 40A, 40B is integral with the attachment portion 35.
  • each part 45, 55 comprises two arms 40A, 40B.
  • each arm 40A, 40B is formed by an independent part fixed to the attachment portion 35 are also possible.
  • Each arm 40A, 40B extends in direction Y from one end of attachment portion 35.
  • each part 45 or 55 comprises an arm 40A and an arm 40B.
  • Each arm 40A extends in a first direction in the direction Y, and each arm 40B extends in the opposite direction in the direction Y. Thus, the two arms 40A are facing each other in the direction X , as well as the two arms 40B.
  • Each arm 40A, 40B is, for example, formed by a vertical portion extending along the Y direction of the corresponding part 45, 55.
  • Each arm 40A has an upper face delimiting the arm 40A in the vertical direction Z and directed towards the underside of the vehicle.
  • Each arm 40A has a cavity or depression 43 extending along direction X.
  • each arm 40A has, on its upper face, a depression 43 extending along the direction X, in particular opening onto each of the faces of the arm 40A delimiting the arm 40A along the direction X.
  • the support 30 is configured to support the antenna 20, that is to say to exert on the antenna 20 a force opposing the weight of the antenna 20, and to be fixed together with the antenna 20 at base 25.
  • the support 30 has, in particular, a fixing face to which the antenna 20 is fixed, for example screwed, and which extends perpendicularly to the direction Z when the support 30 is in the first position, as visible on the figure 1 .
  • the support 30 is rotatable relative to the base 25 between a first position and a second position around an axis A extending in the direction X.
  • the support 30 is in the first position on the figure 1 , and in the second position on the picture 2 .
  • An angular displacement between the first position and the second position is between 45 degrees (°) and 90°, in particular equal to 60°.
  • Support 30 includes at least one first support member 60, at least one pivot member 65, at least one second support member 70, and at least one locking member 75.
  • two separate support elements 60 are present, however this number may vary, for example if a single support element 60 is present.
  • Each first support element 60 is configured to be fixed to the base 25 and to be rotatable relative to the base 25 around the axis A.
  • Each first support element 60 is, for example, formed by a cut and bent sheet metal.
  • Each first support element 60 has, for example, a vertical portion 80 and a fixing portion 85.
  • Each vertical portion 80 extends in a plane perpendicular to the X direction.
  • the two vertical portions 60 are each bearing against a part 45, 55, the two vertical portions 80 being for example interposed between the two parts 45 and 55 along the direction X.
  • Each fixing portion 85 is configured to be fixed to the lower face or to another element secured thereto when the support 30 is in the first position, for example by one or more screws 90, so as to hold the support 30 in the first position.
  • the pivot element(s) 65 is (are) configured to guide the support 30 in rotation, and in particular the first support element(s) 60, around the axis A, and therefore presents over at least part of its length a rotational symmetry around the axis A.
  • Each pivot element 65 extends along axis A.
  • Each pivot element 65 is integral with, for example welded to, one of the first support elements 60.
  • Each pivot element 65 is, for example, a pin.
  • Each pivot element 65 is accommodated in the cavity or depression 43 of a corresponding arm 40A.
  • each pivoting element 65 is supported by the corresponding arm 40A, in particular by the walls of the depression 43 or cavity in which it is accommodated, so as to rest on the arm 40A to support the support 30 and the antenna 20.
  • a single pivot element 65 fixed jointly to the two first support elements 60 is present and accommodated jointly in the two depressions 43 or cavities of the two arms 40A.
  • two second support elements 70 are present, however variants in which these two elements are combined, for example by the addition to the parts 70 presented in the figures of a part joining these parts 70 to form a single second support element, are also possible.
  • Each second support element 70 is fixed jointly to the antenna 20 and to a first support element 60 to which it is integral.
  • the second support element 70 (or the two support elements together) cooperate with the first support element(s) 60 in order to support the antenna 20 and to guide it in rotation around the A axis.
  • the antenna 20 is, for example, screwed, bolted or glued to each second support element 70.
  • Each second support element 70 is configured to cooperate with the corresponding first support element 60 to allow the attachment of the second support element 70 in a plurality of different attachment positions to the first support element.
  • one of the second support member 70 and the first support member 60 has a plurality of through holes 95, the other of the second support 70 and the first support element 60 presenting one or more complementary hole(s), thus allowing the positioning of the second support element 70 in a plurality of fixing positions by selecting one or the other of the plurality of through holes 95 to receive a screw 100 accommodated jointly in this hole and in the complementary hole and held in position by a nut 105 so as to grip the elements 60 and 70 between the head of the screw and the nut.
  • Such sets of through holes 95 are for example provided at two ends of the second support element 70, delimiting this element 70 along the Y direction, so as to provide two points of attachment of the element 70 to the corresponding element 60 by two screws 100, and thus four attachment points in total for all of the second support elements 70.
  • the through holes 95 are, for example, staggered in a plane perpendicular to the direction X, for example by forming a two-dimensional network with a triangular or hexagonal mesh, as shown in the figures.
  • a vertical offset between two neighboring through-holes 95 is, for example, between 2 millimeters (mm) and 10 mm, in particular equal to 5 mm.
  • second support element 70 There is defined, for second support element 70, a distance, in the direction Z, between the underside of the vehicle and the second support element 70 when the second support element is in a fixing position and the support 30 is in the first position.
  • the distance varies from one fixing position to at least another.
  • two or more of the holes 95 are located at different distances from the underside when the support 30 is in the first position.
  • each screw 100 can be replaced by another type of elements for fixing the elements 60, 70 together.
  • other methods for varying the respective position of these elements 60 and 70 while allowing their joining can be envisaged, for example a slide associated with clamping means.
  • Each locking element 75 is configured to maintain the support 30 in the first position.
  • Each locking element 75 is, moreover, removable or switchable between at least two configurations, one of which maintains the support 30 in the first position and at least one other allows the rotation of the support 30 with respect to the base 25.
  • each locking element 75 is a bolt received together in two holes of the base 25 and the support 30 when the support 30 is in the first position.
  • the locking elements 75 are, for example, four in number, each being received in corresponding holes of the support 30 and of a respective arm 40A, 40B.
  • the antenna 20 is configured to communicate with a device external to the vehicle, in particular during movement of the latter.
  • the external device is, for example, arranged between the rails of a railway track.
  • Antenna 20 is configured to transmit and/or receive information via a set of electromagnetic waves.
  • the antenna 20 extends, when the support 30 is in the first position, substantially perpendicular to the direction Z, for example to within 10° or less.
  • the antenna 20 is substantially parallelepipedic.
  • the antenna 20 is, in particular, fixed at each of its corners to the support 30, so as to limit potential interference between the support 30 and the transmitted or received waves.
  • the antenna 20 has an active face 110 interposed between the ground and the element(s) for transmitting/receiving electromagnetic waves of the antenna 20, this active face being substantially perpendicular to the direction Z when the support 30 is in the first position.
  • the mobile support in rotation relative to the base allows access to the space which is located behind the antenna, by pivoting the latter on its support without dismantling it, while ensuring that the antenna is brought back by the same rotation to its initial position and that it is therefore not necessary to repeat a tedious and long test and adjustment phase to obtain the same degree of precision on the positioning of the antenna as before the rotation.
  • the maintenance time of the vehicle in the event of intervention on a device arranged behind the antenna 20 is therefore reduced.
  • the two elements 60 and 70 make it possible to optimize the positioning of the antenna 20 with respect to the rest of the vehicle and to the device with which the antenna 20 communicates.
  • the fact of being able to modify the distance between the elements 70 and the underside of the vehicle makes it possible in particular to modify the distance between the antenna 20 and this device when it is positioned under the vehicle during its movement, and thus to ensure a good communication.
  • a plurality of holes 95 arranged at different distances from the lower face makes it possible in particular to fix the element 70 at various heights easily and permanently by one or more fixing elements.
  • an arm 40A comprising a depression 43 on its upper face makes it possible to precisely position the support 30 on the base 25, by placing the support on the base 25 so that the pivot element(s) 65 are each accommodated in the depression(s) 43 corresponding(s).
  • the locking element(s) 75 allow the support 30 to be held in position with respect to the base 25 and thus ensure the reliability of the communication.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Support Of Aerials (AREA)

Abstract

La présente invention a pour objet un dispositif de fixation (15) pour une antenne (20), destiné à être fixé à une face inférieure d'un véhicule de transport en commun.Le dispositif de fixation (15) comporte une base (25) et un support. La base (25) est configurée pour être fixée à la face inférieure, le support étant configuré pour supporter l'antenne (20) et pour être fixé conjointement à l'antenne (20) et à la base (25).Le support est mobile en rotation par rapport à la base (25) entre une première position et une deuxième position.The present invention relates to a fixing device (15) for an antenna (20), intended to be fixed to an underside of a public transport vehicle.The fixing device (15) comprises a base (25) and a bracket. The base (25) is configured to be fixed to the underside, the support being configured to support the antenna (20) and to be fixed together with the antenna (20) and the base (25).The support is rotatable relative to the base (25) between a first position and a second position.

Description

La présente invention concerne un dispositif de fixation d'une antenne au châssis d'un véhicule. La présente invention concerne également un ensemble comportant un tel dispositif de fixation et une antenne, ainsi qu'un véhicule de transport en commun équipé d'un tel dispositif de fixation ou d'un tel ensemble.The present invention relates to a device for fixing an antenna to the chassis of a vehicle. The present invention also relates to an assembly comprising such a fastening device and an antenna, as well as a public transport vehicle equipped with such a fastening device or such an assembly.

Des antennes sont fréquemment utilisées pour permettre à un véhicule d'échanger des informations avec des dispositifs situés à proximité du véhicule lors de son déplacement. En particulier, dans des systèmes de transport en commun tels que des réseaux ferroviaires ou routiers, ces dispositifs sont disposés près du sol le long des voies de circulation, et les antennes correspondantes sont donc fixées à la partie inférieure du châssis du véhicule, notamment sous le châssis.Antennas are frequently used to allow a vehicle to exchange information with devices located near the vehicle as it moves. In particular, in public transport systems such as rail or road networks, these devices are arranged close to the ground along the traffic lanes, and the corresponding antennas are therefore fixed to the lower part of the vehicle chassis, in particular under the chassis.

Afin d'assurer une communication optimale entre l'antenne et le dispositif au sol correspondant, l'antenne doit être fixée de manière très contrôlée au véhicule pour être positionnée de manière optimale, puisque les informations transmises sont souvent très importantes pour l'exploitation sécurisée du réseau de transport. Il s'ensuit que le positionnement de l'antenne est optimisé par une phase de tests et de réglages, qui peut durer plusieurs heures, de manière à vérifier que la communication est suffisante pour que le transfert des informations soit fiable.In order to ensure optimal communication between the antenna and the corresponding ground device, the antenna must be attached in a very controlled way to the vehicle to be optimally positioned, since the information transmitted is often very important for safe operation. of the transportation network. It follows that the positioning of the antenna is optimized by a phase of tests and adjustments, which can last several hours, so as to verify that the communication is sufficient for the transfer of information to be reliable.

Toutefois, l'antenne est en général fixée à proximité d'autres appareils et dispositifs montés sur le véhicule, dont elle limite l'accès puisque, par nature, l'antenne doit être disposée sur l'extérieur du véhicule. Il s'ensuit que, lorsqu'il est nécessaire d'intervenir sur l'un de ces appareils et dispositifs, cette intervention est rendue délicate par la présence de l'antenne, qu'il est souvent nécessaire de démonter pour accéder aux appareils disposés derrière. Cependant, il est alors nécessaire de recommencer la phase de test pour repositionner précisément l'antenne.However, the antenna is generally fixed close to other devices and devices mounted on the vehicle, to which it limits access since, by nature, the antenna must be arranged on the outside of the vehicle. It follows that, when it is necessary to intervene on one of these devices and devices, this intervention is made difficult by the presence of the antenna, which it is often necessary to dismantle to access the devices arranged behind. However, it is then necessary to restart the test phase to precisely reposition the antenna.

Il existe donc un besoin pour un véhicule comportant une antenne, qui nécessite des interventions moins longues lors de sa maintenance ou de sa modification et dont la disponibilité soit donc plus grande que celle des véhicules de l'état de la technique.There is therefore a need for a vehicle comprising an antenna, which requires less time-consuming interventions during its maintenance or its modification and whose availability is therefore greater than that of vehicles of the state of the art.

Ce but est atteint à l'aide d'un dispositif de fixation pour une antenne, destiné à être fixé à une face inférieure d'un véhicule de transport en commun, le dispositif de fixation comportant une base et un support, la base étant configurée pour être fixée à la face inférieure, le support étant configuré pour supporter l'antenne et pour être fixé conjointement à l'antenne et à la base, le support étant mobile en rotation par rapport à la base entre une première position et une deuxième position.This object is achieved by means of a fixing device for an antenna, intended to be fixed to an underside of a public transport vehicle, the fixing device comprising a base and a support, the base being configured to be attached to the face lower, the support being configured to support the antenna and to be fixed jointly to the antenna and to the base, the support being rotatable relative to the base between a first position and a second position.

En effet, le support mobile en rotation par rapport à la base permet d'accéder à l'espace qui est situé derrière l'antenne, en faisant pivoter celle-ci sur son support sans la démonter, tout en assurant que l'antenne est ramenée par la même rotation à sa position initiale et qu'il n'est donc pas nécessaire de recommencer une phase de test et de réglages fastidieuse et longue pour obtenir le même degré de précision sur le positionnement de l'antenne qu'avant la rotation.Indeed, the mobile support in rotation relative to the base allows access to the space which is located behind the antenna, by pivoting the latter on its support without dismantling it, while ensuring that the antenna is brought back by the same rotation to its initial position and that it is therefore not necessary to repeat a tedious and time-consuming test and adjustment phase to obtain the same degree of precision on the positioning of the antenna as before the rotation .

Selon des modes de réalisation avantageux mais non obligatoires, le dispositif de fixation comprend une ou plusieurs des caractéristiques suivantes, prises isolément ou selon toutes les combinaisons techniquement possibles :

  • le support comporte un premier élément de support fixé à la base et mobile en rotation par rapport à celle-ci et un deuxième élément de support configuré pour supporter l'antenne et fixé au premier élément de support ;
  • le premier et le deuxième élément de support sont configurés pour permettre la fixation du deuxième élément de support au premier élément de support dans une pluralité de positions de fixation, une distance entre la face inférieure et le deuxième élément de support étant définie pour chaque position de fixation lorsque le support est dans la première position, la distance d'au moins une position de fixation étant différente de la distance d'au moins une autre position de fixation ;
  • un élément de support parmi le premier et le deuxième élément de support comporte au moins un premier trou, l'autre élément de support parmi le premier et le deuxième élément de support comportant une pluralité de deuxièmes trous, au moins deux deuxièmes trous étant disposés à des distances différentes de la face inférieure lorsque le support est dans la première position, le premier et le deuxième élément de support étant fixés l'un à l'autre par au moins un élément de fixation accueilli conjointement dans le premier trou et dans l'un des deuxièmes trous ;
  • la base comporte au moins un bras s'étendant sensiblement horizontalement lorsque la base est fixée à la face inférieure, le bras présentant une face supérieure lorsque la base est fixée à la face inférieure, chaque face supérieure comportant une dépression s'étendant selon un axe de rotation du support, le support comportant au moins un élément de pivotement s'étendant selon l'axe de rotation et accueilli dans la dépression, l'élément de pivotement étant configuré pour guider le support en rotation par rapport à la base ;
  • le dispositif de fixation comporte en outre, au moins un élément de verrouillage configuré pour maintenir le support dans la première position ;
  • un débattement angulaire entre la première position et la deuxième position est compris entre 45 degrés et 90 degrés, notamment égal à 60 degrés ;
According to advantageous but not obligatory embodiments, the fixing device comprises one or more of the following characteristics, taken in isolation or according to all the technically possible combinations:
  • the support comprises a first support element fixed to the base and rotatable relative thereto and a second support element configured to support the antenna and fixed to the first support element;
  • the first and the second support element are configured to allow the attachment of the second support element to the first support element in a plurality of attachment positions, a distance between the underside and the second support element being defined for each position of fixing when the support is in the first position, the distance of at least one fixing position being different from the distance of at least one other fixing position;
  • a support element among the first and the second support element comprises at least a first hole, the other support element among the first and the second support element comprises a plurality of second holes, at least two second holes being arranged at different distances from the underside when the support is in the first position, the first and the second support element being fixed to each other by at least one fixing element received together in the first hole and in the one of the second holes;
  • the base comprises at least one arm extending substantially horizontally when the base is fixed to the lower face, the arm having an upper face when the base is fixed to the lower face, each upper face comprising a depression extending along an axis rotation of the support, the support comprising at least one pivoting element extending along the axis of rotation and received in the depression, the pivoting element being configured to guide the support in rotation relative to the base;
  • the fixing device further comprises at least one locking element configured to hold the support in the first position;
  • an angular movement between the first position and the second position is between 45 degrees and 90 degrees, in particular equal to 60 degrees;

Il est également proposé un ensemble comportant un dispositif de fixation tel que précédemment décrit et une antenne configurée pour être fixée au support.There is also proposed an assembly comprising a fixing device as previously described and an antenna configured to be fixed to the support.

Selon un mode de réalisation avantageux mais non obligatoire, l'ensemble comprend la caractéristique suivante :

  • lorsque le support est dans la première position, l'antenne s'étend perpendiculairement à une direction verticale du véhicule
According to an advantageous but not compulsory embodiment, the assembly comprises the following characteristic:
  • when the bracket is in the first position, the antenna extends perpendicular to a vertical direction of the vehicle

Il est aussi proposé un véhicule de transport en commun, notamment un véhicule ferroviaire, équipé d'un dispositif de fixation tel que précédemment décrit, ou d'un ensemble tel que précédemment décrit, la face inférieure dudit véhicule faisant face au sol lorsque le véhicule circule.There is also proposed a public transport vehicle, in particular a railway vehicle, equipped with a fixing device as previously described, or with an assembly as previously described, the underside of said vehicle facing the ground when the vehicle circulates.

Des caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en référence aux dessins annexés, sur lesquels :

  • [Fig 1] la figure 1 est une vue d'un ensemble comportant une antenne et un dispositif de fixation selon l'invention, comportant une base et un support mobile par rapport à la base, le support étant dans une première position, et
  • [Fig 2] la figure 2 est une vue de l'ensemble de la figure 1, le support étant dans une deuxième position.
Characteristics and advantages of the invention will appear on reading the following description, given solely by way of non-limiting example and made with reference to the appended drawings, in which:
  • [ Fig 1 ] there figure 1 is a view of an assembly comprising an antenna and a fixing device according to the invention, comprising a base and a support movable relative to the base, the support being in a first position, and
  • [ Fig 2 ] there picture 2 is a view of the whole figure 1 , the support being in a second position.

Un exemple d'ensemble 10 est représenté sur la figure 1.An example of set 10 is shown in figure 1 .

L'ensemble 10 est, par exemple, embarqué dans un véhicule de transport en commun, notamment un véhicule ferroviaire tel qu'une motrice ou une voiture de transport de passagers ou de fret.The assembly 10 is, for example, on board a public transport vehicle, in particular a railway vehicle such as a power car or a passenger or freight car.

Le véhicule comporte, de manière connue en soi, un châssis supportant une carrosserie et/ou des moyens de propulsion du véhicule tel qu'un moteur. Par exemple, le châssis est porté par un ensemble de roues, notamment par un ou plusieurs bogies. En variante, les roues sont montées directement mobiles au châssis sans utiliser un bogie intermédiaire.The vehicle comprises, in a manner known per se, a frame supporting a bodywork and/or vehicle propulsion means such as an engine. For example, the frame is carried by a set of wheels, in particular by one or more bogies. Alternatively, the wheels are movably mounted directly to the frame without using an intermediate bogie.

Il est défini trois directions X, Y et Z, perpendiculaires les unes aux autres, pour le véhicule. La direction Z est une direction verticale lorsque le véhicule est en circulation sur un sol horizontal. Les directions X et Y sont alors des directions horizontales. En particulier, la direction Y est une direction d'extension du véhicule, selon laquelle le véhicule est prévu pour se déplacer. Toutefois, il est à noter que l'orientation des directions X et Y dans le plan horizontal, par rapport au reste du véhicule, est susceptible de varier.Three directions X, Y and Z, perpendicular to each other, are defined for the vehicle. The Z direction is a vertical direction when the vehicle is traveling on horizontal ground. The X and Y directions are then horizontal directions. In particular, the direction Y is a direction of extension of the vehicle, along which the vehicle is intended to move. However, it should be noted that the orientation of the X and Y directions in the horizontal plane, relative to the rest of the vehicle, is liable to vary.

L'ensemble 10 est fixé sous le véhicule, notamment sous le châssis ou sous la carrosserie. En particulier, l'ensemble 10 est fixé à une face inférieure du véhicule, notamment du châssis ou de la carrosserie, c'est-à-dire à une face du véhicule, du châssis ou de la carrosserie qui fait face au sol lorsque le véhicule circule.The assembly 10 is fixed under the vehicle, in particular under the chassis or under the bodywork. In particular, the assembly 10 is fixed to a lower face of the vehicle, in particular of the chassis or of the bodywork, that is to say to a face of the vehicle, of the chassis or of the bodywork which faces the ground when the vehicle is moving.

L'ensemble 10 comporte un dispositif de fixation 15 et une antenne 20.The assembly 10 comprises a fixing device 15 and an antenna 20.

Le dispositif de fixation 15 est configuré pour être fixé sous le véhicule, notamment à la face inférieure précitée du véhicule pour fixer l'antenne 20 au véhicule.The fixing device 15 is configured to be fixed under the vehicle, in particular to the aforementioned underside of the vehicle to fix the antenna 20 to the vehicle.

Le dispositif de fixation 15 comporte une base 25 et un support 30.The fixing device 15 comprises a base 25 and a support 30.

La base 25 est réalisée en un matériau métallique, par exemple en acier, mais en variante peut être constituée d'un ou plusieurs matériau(x) différent(s), par exemple en un matériau plastique.The base 25 is made of a metallic material, for example steel, but as a variant can be made of one or more different material(s), for example a plastic material.

La base 25 est configurée pour être fixée sous le véhicule, notamment à la face inférieure précitée.The base 25 is configured to be fixed under the vehicle, in particular to the aforementioned underside.

La base 25 est configurée pour exercer sur le support 30 une force tendant à s'opposer au poids du support 30 et de l'antenne 20, de manière à maintenir le support 30 et l'antenne 20 en position par rapport au reste du véhicule.The base 25 is configured to exert on the support 30 a force tending to oppose the weight of the support 30 and the antenna 20, so as to maintain the support 30 and the antenna 20 in position relative to the rest of the vehicle .

La base 25 comporte, par exemple, une portion d'attache 35 et au moins un bras 40A, 40B, par exemple deux bras 40A, 40B, notamment quatre bras 40A, 40B dont deux sont visibles sur les figures 1 et 2.The base 25 comprises, for example, an attachment portion 35 and at least one arm 40A, 40B, for example two arms 40A, 40B, in particular four arms 40A, 40B, two of which are visible on the figure 1 And 2 .

La portion d'attache 35 relie le ou les bras 40A, 40B à la face inférieure du véhicule pour maintenir le ou les bras 40A, 40B en position par rapport au reste du véhicule. La portion d'attache 35 est interposée entre le ou les bras 40A, 40B et cette face inférieure selon la direction Z. La portion d'attache 35 est, par exemple fixée à cette face inférieure par une ou des vis.The attachment portion 35 connects the arm(s) 40A, 40B to the underside of the vehicle to hold the arm(s) 40A, 40B in position relative to the rest of the vehicle. The attachment portion 35 is interposed between the arm(s) 40A, 40B and this lower face in the direction Z. The attachment portion 35 is, for example, fixed to this lower face by one or more screws.

Selon le mode de réalisation représenté sur les figures 1 et 2, la base 25 est constituée de trois pièces 45, 50 et 55, toutefois le nombre de pièces constituant la base 25 est susceptible de varier, par exemple si la base 25 est monobloc.According to the embodiment shown in the figure 1 And 2 , the base 25 consists of three parts 45, 50 and 55, however the number of parts constituting the base 25 is likely to vary, for example if the base 25 is in one piece.

Dans le mode de réalisation représenté, les pièces 45, 50 et 55 sont chacune obtenue par découpe et/ou pliage d'une tôle métallique et assemblées ensemble de manière à former une base 25 rigide.In the embodiment shown, the parts 45, 50 and 55 are each obtained by cutting and/or bending a metal sheet and assembled together so as to form a rigid base.

Les pièces 45 et 55 sont décalées l'une par rapport à l'autre selon la direction X, et la pièce 50 est interposée entre ces pièces 45 et 55 selon la direction X et fixée conjointement à ces deux pièces 45, 55 pour les solidariser.Parts 45 and 55 are offset relative to each other in direction X, and part 50 is interposed between these parts 45 and 55 in direction X and fixed together to these two parts 45, 55 to secure them .

Les pièces 45 et 55 sont, par exemple, images miroir l'une de l'autre par rapport à un plan parallèle aux directions Z et Y.Parts 45 and 55 are, for example, mirror images of each other with respect to a plane parallel to the Z and Y directions.

Chacune des pièces 45, 55 est fixée à la face inférieure du véhicule à une de ses extrémités, l'autre extrémité étant reliée à deux bras 40A, 40B.Each of the parts 45, 55 is fixed to the underside of the vehicle at one of its ends, the other end being connected to two arms 40A, 40B.

Dans l'exemple représenté, chaque bras 40A, 40B est venu de matière avec la portion d'attache 35. Par exemple, chaque pièce 45, 55 comporte deux bras 40A, 40B. Toutefois, des modes de réalisation dans lesquels chaque bras 40A, 40B est formé par une pièce indépendante fixée à la portion d'attache 35 sont également envisageables.In the example shown, each arm 40A, 40B is integral with the attachment portion 35. For example, each part 45, 55 comprises two arms 40A, 40B. However, embodiments in which each arm 40A, 40B is formed by an independent part fixed to the attachment portion 35 are also possible.

Chaque bras 40A, 40B s'étend selon la direction Y à partir d'une extrémité de la portion d'attache 35.Each arm 40A, 40B extends in direction Y from one end of attachment portion 35.

Dans le mode de réalisation représenté, chaque pièce 45 ou 55 comporte un bras 40A et un bras 40B.In the embodiment shown, each part 45 or 55 comprises an arm 40A and an arm 40B.

Chaque bras 40A s'étend selon un premier sens selon la direction Y, et chaque bras 40B s'étend en sens inverse selon la direction Y. Ainsi, les deux bras 40A sont en regard l'un de l'autre selon la direction X, de même que les deux bras 40B.Each arm 40A extends in a first direction in the direction Y, and each arm 40B extends in the opposite direction in the direction Y. Thus, the two arms 40A are facing each other in the direction X , as well as the two arms 40B.

Chaque bras 40A, 40B est, par exemple, formé par une portion verticale s'étendant selon la direction Y de la pièce 45, 55 correspondante.Each arm 40A, 40B is, for example, formed by a vertical portion extending along the Y direction of the corresponding part 45, 55.

Chaque bras 40A présente une face supérieure délimitant le bras 40A selon la direction verticale Z et dirigée vers la face inférieure du véhicule.Each arm 40A has an upper face delimiting the arm 40A in the vertical direction Z and directed towards the underside of the vehicle.

Chaque bras 40A présente une cavité ou dépression 43 s'étendant selon la direction X.Each arm 40A has a cavity or depression 43 extending along direction X.

Par exemple, chaque bras 40A présente, sur sa face supérieure, une dépression 43 s'étendant selon la direction X, notamment débouchant sur chacune des faces du bras 40A délimitant le bras 40A selon la direction X.For example, each arm 40A has, on its upper face, a depression 43 extending along the direction X, in particular opening onto each of the faces of the arm 40A delimiting the arm 40A along the direction X.

Le support 30 est configuré pour supporter l'antenne 20, c'est-à-dire pour exercer sur l'antenne 20 une force s'opposant au poids de l'antenne 20, et pour être fixé conjointement à l'antenne 20 à la base 25.The support 30 is configured to support the antenna 20, that is to say to exert on the antenna 20 a force opposing the weight of the antenna 20, and to be fixed together with the antenna 20 at base 25.

Le support 30 présente, notamment, une face de fixation à laquelle l'antenne 20 est fixée, par exemple vissée, et qui s'étend perpendiculairement à la direction Z lorsque le support 30 est dans la première position, comme visible sur la figure 1.The support 30 has, in particular, a fixing face to which the antenna 20 is fixed, for example screwed, and which extends perpendicularly to the direction Z when the support 30 is in the first position, as visible on the figure 1 .

Le support 30 est mobile en rotation par rapport à la base 25 entre une première position et une deuxième position autour d'un axe A s'étendant selon la direction X.The support 30 is rotatable relative to the base 25 between a first position and a second position around an axis A extending in the direction X.

Le support 30 est dans la première position sur la figure 1, et dans la deuxième position sur la figure 2.The support 30 is in the first position on the figure 1 , and in the second position on the picture 2 .

Un débattement angulaire entre la première position et la deuxième position est compris entre 45 degrés (°) et 90 °, notamment égal à 60°.An angular displacement between the first position and the second position is between 45 degrees (°) and 90°, in particular equal to 60°.

Le support 30 comporte au moins un premier élément de support 60, au moins un élément de pivotement 65, au moins un deuxième élément de support 70 et au moins un élément de verrouillage 75.Support 30 includes at least one first support member 60, at least one pivot member 65, at least one second support member 70, and at least one locking member 75.

Dans l'exemple représenté, deux éléments de support 60 séparés sont présents, toutefois ce nombre peut varier, par exemple si un unique élément de support 60 est présent.In the example shown, two separate support elements 60 are present, however this number may vary, for example if a single support element 60 is present.

Chaque premier élément de support 60 est configuré pour être fixé à la base 25 et pour être mobile en rotation par rapport à la base 25 autour de l'axe A.Each first support element 60 is configured to be fixed to the base 25 and to be rotatable relative to the base 25 around the axis A.

Chaque premier élément de support 60 est, par exemple, formé par une tôle métallique découpée et pliée.Each first support element 60 is, for example, formed by a cut and bent sheet metal.

Chaque premier élément de support 60 présente, par exemple, une portion verticale 80 et une portion de fixation 85.Each first support element 60 has, for example, a vertical portion 80 and a fixing portion 85.

Chaque portion verticale 80 s'étend dans un plan perpendiculaire à la direction X.Each vertical portion 80 extends in a plane perpendicular to the X direction.

En particulier, les deux portions verticales 60 sont chacune en appui contre une pièce 45, 55, les deux portions verticales 80 étant par exemple interposées entre les deux pièces 45 et 55 selon la direction X.In particular, the two vertical portions 60 are each bearing against a part 45, 55, the two vertical portions 80 being for example interposed between the two parts 45 and 55 along the direction X.

Chaque portion de fixation 85 est configurée pour être fixée à la face inférieure ou à un autre élément solidaire de celle-ci lorsque le support 30 est dans la première position, par exemple par une ou plusieurs vis 90, de manière à maintenir le support 30 dans la première position.Each fixing portion 85 is configured to be fixed to the lower face or to another element secured thereto when the support 30 is in the first position, for example by one or more screws 90, so as to hold the support 30 in the first position.

Le ou les élément(s) de pivotement 65 est (sont) configuré(s) pour guider en rotation le support 30, et notamment le ou les premier(s) élément(s) de support 60, autour de l'axe A, et présente donc sur au moins une partie de sa longueur une symétrie de rotation autour de l'axe A.The pivot element(s) 65 is (are) configured to guide the support 30 in rotation, and in particular the first support element(s) 60, around the axis A, and therefore presents over at least part of its length a rotational symmetry around the axis A.

Chaque élément de pivotement 65 s'étend selon l'axe A.Each pivot element 65 extends along axis A.

Chaque élément de pivotement 65 est solidaire de, par exemple soudé à, l'un des premiers éléments de support 60.Each pivot element 65 is integral with, for example welded to, one of the first support elements 60.

Chaque élément de pivotement 65 est, par exemple, un pion.Each pivot element 65 is, for example, a pin.

Chaque élément de pivotement 65 est accueilli dans la cavité ou dépression 43 d'un bras 40A correspondant.Each pivot element 65 is accommodated in the cavity or depression 43 of a corresponding arm 40A.

En particulier, chaque élément de pivotement 65 est supporté par le bras 40A correspondant, notamment par les parois de la dépression 43 ou cavité dans laquelle il est accueilli, de manière à s'appuyer sur le bras 40A pour supporter le support 30 et l'antenne 20.In particular, each pivoting element 65 is supported by the corresponding arm 40A, in particular by the walls of the depression 43 or cavity in which it is accommodated, so as to rest on the arm 40A to support the support 30 and the antenna 20.

En variante, un unique élément de pivotement 65 fixé conjointement aux deux premiers éléments de support 60 est présent et accueilli conjointement dans les deux dépressions 43 ou cavités des deux bras 40A.As a variant, a single pivot element 65 fixed jointly to the two first support elements 60 is present and accommodated jointly in the two depressions 43 or cavities of the two arms 40A.

Selon l'exemple présenté, deux deuxièmes éléments de support 70 sont présents, toutefois des variantes dans lesquelles ces deux éléments sont confondus, par exemple par l'ajout aux pièces 70 présentées sur les figures d'une pièce solidarisant ces pièces 70 pour former un unique deuxième élément de support, sont également envisageables.According to the example presented, two second support elements 70 are present, however variants in which these two elements are combined, for example by the addition to the parts 70 presented in the figures of a part joining these parts 70 to form a single second support element, are also possible.

Chaque deuxième élément de support 70 est fixé conjointement à l'antenne 20 et à un premier élément de support 60 dont il est solidaire. Ainsi, le deuxième élément de support 70 (ou les deux éléments de support conjointement) coopèrent avec le ou les premier(s) élément(s) de support 60 afin de supporter l'antenne 20 et de la guider en rotation autour de l'axe A.Each second support element 70 is fixed jointly to the antenna 20 and to a first support element 60 to which it is integral. Thus, the second support element 70 (or the two support elements together) cooperate with the first support element(s) 60 in order to support the antenna 20 and to guide it in rotation around the A axis.

L'antenne 20 est, par exemple, vissée, boulonnée ou collée à chaque deuxième élément de support 70.The antenna 20 is, for example, screwed, bolted or glued to each second support element 70.

Chaque deuxième élément de support 70 est configuré pour coopérer avec le premier élément de support 60 correspondant pour permettre la fixation du deuxième élément de support 70 dans une pluralité de positions de fixation différentes au premier élément de support.Each second support element 70 is configured to cooperate with the corresponding first support element 60 to allow the attachment of the second support element 70 in a plurality of different attachment positions to the first support element.

Par exemple, l'un parmi le deuxième élément de support 70 et le premier élément de support 60 (le deuxième élément de support 70 dans le mode de réalisation représenté) présente une pluralité de trous traversants 95, l'autre parmi le deuxième élément de support 70 et le premier élément de support 60 présentant un ou plusieurs trou(s) complémentaire(s), permettant ainsi le positionnement du deuxième élément de support 70 dans une pluralité de positions de fixation en sélectionnant l'un ou l'autre de la pluralité de trous traversants 95 pour recevoir une vis 100 accueillie conjointement dans ce trou et dans le trou complémentaire et maintenue en position par un écrou 105 de manière à enserrer les éléments 60 et 70 entre la tête de la vis et l'écrou.For example, one of the second support member 70 and the first support member 60 (the second support member 70 in the embodiment shown) has a plurality of through holes 95, the other of the second support 70 and the first support element 60 presenting one or more complementary hole(s), thus allowing the positioning of the second support element 70 in a plurality of fixing positions by selecting one or the other of the plurality of through holes 95 to receive a screw 100 accommodated jointly in this hole and in the complementary hole and held in position by a nut 105 so as to grip the elements 60 and 70 between the head of the screw and the nut.

De tels ensembles de trous traversants 95 sont par exemple prévus à deux extrémités du deuxième élément de support 70, délimitant cet élément 70 selon la direction Y, de manière à fournir deux points de fixation de l'élément 70 à l'élément 60 correspondant par deux vis 100, et ainsi quatre points de fixation au total de l'ensemble des deuxièmes éléments de support 70.Such sets of through holes 95 are for example provided at two ends of the second support element 70, delimiting this element 70 along the Y direction, so as to provide two points of attachment of the element 70 to the corresponding element 60 by two screws 100, and thus four attachment points in total for all of the second support elements 70.

Les trous traversants 95 sont, par exemple, disposés en quinconce dans un plan perpendiculaire à la direction X, par exemple en formant un réseau bidimensionnel à maille triangulaire ou hexagonale, comme représenté sur les figures.The through holes 95 are, for example, staggered in a plane perpendicular to the direction X, for example by forming a two-dimensional network with a triangular or hexagonal mesh, as shown in the figures.

Un décalage vertical entre deux trous traversants 95 voisins est, par exemple, compris entre 2 millimètres (mm) et 10 mm, notamment égal à 5 mm.A vertical offset between two neighboring through-holes 95 is, for example, between 2 millimeters (mm) and 10 mm, in particular equal to 5 mm.

Il est défini, pour deuxième élément de support 70, une distance, selon la direction Z, entre la face inférieure du véhicule et le deuxième élément de support 70 lorsque le deuxième élément de support est dans une position de fixation et que le support 30 est dans la première position.There is defined, for second support element 70, a distance, in the direction Z, between the underside of the vehicle and the second support element 70 when the second support element is in a fixing position and the support 30 is in the first position.

La distance varie d'une position de fixation à au moins une autre. Par exemple, deux des trous 95 ou plus sont situés à des distances différentes de la face inférieure lorsque le support 30 est dans la première position.The distance varies from one fixing position to at least another. For example, two or more of the holes 95 are located at different distances from the underside when the support 30 is in the first position.

En variante, chaque vis 100 est susceptible d'être remplacée par un autre type d'éléments de fixation des éléments 60, 70 entre eux. En outre d'autres méthodes pour faire varier la position respective de ces éléments 60 et 70 tout en permettant leur solidarisation peuvent être envisagées, par exemple une glissière associée à des moyens de serrage.As a variant, each screw 100 can be replaced by another type of elements for fixing the elements 60, 70 together. In addition, other methods for varying the respective position of these elements 60 and 70 while allowing their joining can be envisaged, for example a slide associated with clamping means.

Chaque élément de verrouillage 75 est configuré pour maintenir le support 30 dans la première position. Chaque élément de verrouillage 75 est, en outre, amovible ou commutable entre au moins deux configurations dont une maintient le support 30 dans la première position et au moins une autre permet la rotation du support 30 par rapport à la base 25.Each locking element 75 is configured to maintain the support 30 in the first position. Each locking element 75 is, moreover, removable or switchable between at least two configurations, one of which maintains the support 30 in the first position and at least one other allows the rotation of the support 30 with respect to the base 25.

Par exemple, chaque élément de verrouillage 75 est un boulon reçu conjointement dans deux trous de la base 25 et du support 30 lorsque le support 30 est dans la première position.For example, each locking element 75 is a bolt received together in two holes of the base 25 and the support 30 when the support 30 is in the first position.

Selon l'exemple représenté sur les figures, les éléments de verrouillage 75 sont, par exemple, au nombre de quatre, chacun étant reçu dans des trous correspondants du support 30 et d'un bras 40A, 40B respectif.According to the example shown in the figures, the locking elements 75 are, for example, four in number, each being received in corresponding holes of the support 30 and of a respective arm 40A, 40B.

L'antenne 20 est configurée pour communiquer avec un dispositif externe au véhicule, notamment pendant un déplacement de celui-ci. Le dispositif externe est, par exemple, disposé entre des rails d'une voie ferrée.The antenna 20 is configured to communicate with a device external to the vehicle, in particular during movement of the latter. The external device is, for example, arranged between the rails of a railway track.

L'antenne 20 est configurée pour émettre et/ou recevoir des informations via un ensemble d'ondes électromagnétiques.Antenna 20 is configured to transmit and/or receive information via a set of electromagnetic waves.

L'antenne 20 s'étend, lorsque le support 30 est dans la première position, sensiblement perpendiculairement à la direction Z, par exemple à 10° près ou moins.The antenna 20 extends, when the support 30 is in the first position, substantially perpendicular to the direction Z, for example to within 10° or less.

Par exemple, l'antenne 20 est sensiblement parallélépipédique. L'antenne 20 est, notamment, fixée au niveau de chacun de ses coins au support 30, de manière à limiter les interférences potentielles entre le support 30 et les ondes émises ou reçues.For example, the antenna 20 is substantially parallelepipedic. The antenna 20 is, in particular, fixed at each of its corners to the support 30, so as to limit potential interference between the support 30 and the transmitted or received waves.

En particulier, l'antenne 20 présente une face active 110 interposée entre le sol et le ou les éléments d'émission/réception des ondes électromagnétiques de l'antenne 20, cette face active étant sensiblement perpendiculaire à la direction Z lorsque le support 30 est dans la première position.In particular, the antenna 20 has an active face 110 interposed between the ground and the element(s) for transmitting/receiving electromagnetic waves of the antenna 20, this active face being substantially perpendicular to the direction Z when the support 30 is in the first position.

Le support mobile en rotation par rapport à la base permet d'accéder à l'espace qui est situé derrière l'antenne, en faisant pivoter celle-ci sur son support sans la démonter, tout en assurant que l'antenne est ramenée par la même rotation à sa position initiale et qu'il n'est donc pas nécessaire de recommencer une phase de test et de réglages fastidieuse et longue pour obtenir le même degré de précision sur le positionnement de l'antenne qu'avant la rotation. La durée de maintenance du véhicule en cas d'intervention sur un dispositif disposé derrière l'antenne 20 est donc réduite.The mobile support in rotation relative to the base allows access to the space which is located behind the antenna, by pivoting the latter on its support without dismantling it, while ensuring that the antenna is brought back by the same rotation to its initial position and that it is therefore not necessary to repeat a tedious and long test and adjustment phase to obtain the same degree of precision on the positioning of the antenna as before the rotation. The maintenance time of the vehicle in the event of intervention on a device arranged behind the antenna 20 is therefore reduced.

Les deux éléments 60 et 70 permettent d'optimiser le positionnement de l'antenne 20 par rapport au reste du véhicule et au dispositif avec lequel l'antenne 20 communique. Le fait de pouvoir modifier la distance entre les éléments 70 et la face inférieure du véhicule permet notamment de modifier la distance entre l'antenne 20 et ce dispositif lorsqu'il est positionné sous le véhicule lors de son déplacement, et ainsi d'assurer une bonne communication.The two elements 60 and 70 make it possible to optimize the positioning of the antenna 20 with respect to the rest of the vehicle and to the device with which the antenna 20 communicates. The fact of being able to modify the distance between the elements 70 and the underside of the vehicle makes it possible in particular to modify the distance between the antenna 20 and this device when it is positioned under the vehicle during its movement, and thus to ensure a good communication.

Une pluralité de trous 95 disposés à des distances différentes de la face inférieure permet notamment de fixer l'élément 70 à diverses hauteurs aisément et de manière pérenne par un ou des éléments de fixation.A plurality of holes 95 arranged at different distances from the lower face makes it possible in particular to fix the element 70 at various heights easily and permanently by one or more fixing elements.

L'utilisation d'un bras 40A comportant une dépression 43 sur sa face supérieure permet de positionner précisément le support 30 sur la base 25, en posant le support sur la base 25 de manière à ce que le ou les élément(s) de pivotement 65 soient chacun accueilli dans la ou les dépression(s) 43 correspondante(s).The use of an arm 40A comprising a depression 43 on its upper face makes it possible to precisely position the support 30 on the base 25, by placing the support on the base 25 so that the pivot element(s) 65 are each accommodated in the depression(s) 43 corresponding(s).

Le ou les éléments de verrouillage 75 permettent un maintien en position du support 30 par rapport à la base 25 et ainsi assurent la fiabilité de la communication.The locking element(s) 75 allow the support 30 to be held in position with respect to the base 25 and thus ensure the reliability of the communication.

Claims (8)

Véhicule de transport en commun ferroviaire équipé d'un dispositif de fixation (15) pour une antenne (20), fixé à une face inférieure d'un véhicule de transport en commun, la face inférieure faisant face au sol lorsque le véhicule circule, le dispositif de fixation (15) comportant une base (25) et un support (30), la base (25) étant configurée pour être fixée à la face inférieure, le support (30) étant configuré pour supporter l'antenne (20) et pour être fixé conjointement à l'antenne (20) et à la base (25), le support (30) étant mobile en rotation par rapport à la base (25) entre une première position et une deuxième position,
dans lequel, le véhicule comporte, en outre, au moins un élément de verrouillage (75) configuré pour maintenir le support (30) dans la première position, chaque élément de verrouillage (75) étant amovible ou commutable entre au moins deux configurations dont une maintient le support (30) dans la première position et au moins une autre permet la rotation du support (30) par rapport à la base (25).Rail public transport vehicle equipped with a fixing device (15) for an antenna (20), fixed to an underside of a public transport vehicle, the underside facing the ground when the vehicle is running, the mounting device (15) comprising a base (25) and a support (30), the base (25) being configured to be fixed to the underside, the support (30) being configured to support the antenna (20) and to be fixed jointly to the antenna (20) and to the base (25), the support (30) being rotatable relative to the base (25) between a first position and a second position,
wherein the vehicle further comprises at least one locking element (75) configured to maintain the support (30) in the first position, each locking element (75) being removable or switchable between at least two configurations, one of which maintains the support (30) in the first position and at least one other allows rotation of the support (30) relative to the base (25). Véhicule selon la revendication 1, dans lequel le support (30) comporte un premier élément de support (60) fixé à la base (25) et mobile en rotation par rapport à celle-ci et un deuxième élément de support (70) configuré pour supporter l'antenne (20) et fixé au premier élément de support (60).A vehicle according to claim 1, wherein the support (30) includes a first support member (60) fixed to the base (25) and rotatable relative thereto and a second support member (70) configured to support the antenna (20) and attached to the first support member (60). Véhicule selon la revendication 2, dans lequel le premier et le deuxième élément de support (60, 70) sont configurés pour permettre la fixation du deuxième élément de support (70) au premier élément de support (60) dans une pluralité de positions de fixation, une distance entre la face inférieure et le deuxième élément de support (70) étant définie pour chaque position de fixation lorsque le support (30) est dans la première position, la distance d'au moins une position de fixation étant différente de la distance d'au moins une autre position de fixation.A vehicle according to claim 2, wherein the first and second support member (60, 70) are configured to allow attachment of the second support member (70) to the first support member (60) in a plurality of attachment positions , a distance between the underside and the second support element (70) being defined for each fixing position when the support (30) is in the first position, the distance of at least one fixing position being different from the distance at least one other fixing position. Véhicule selon la revendication 3, dans lequel un élément de support (60, 70) parmi le premier et le deuxième élément de support (60, 70) comporte au moins un premier trou, l'autre élément de support (60, 70) parmi le premier et le deuxième élément de support (60, 70) comportant une pluralité de deuxièmes trous (95), au moins deux deuxièmes trous (95) étant disposés à des distances différentes de la face inférieure lorsque le support (30) est dans la première position, le premier et le deuxième élément de support (60, 70) étant fixés l'un à l'autre par au moins un élément de fixation (100) accueilli conjointement dans le premier trou et dans l'un des deuxièmes trous (95).Vehicle according to Claim 3, in which a support element (60, 70) among the first and the second support element (60, 70) comprises at least a first hole, the other support element (60, 70) among the first and the second support element (60, 70) comprising a plurality of second holes (95), at least two second holes (95) being disposed at different distances from the underside when the support (30) is in the first position, the first and the second support element (60, 70) being fixed to each other by at least one fixing element (100) received together in the first hole and in one of the second holes ( 95). Véhicule selon l'une quelconque des revendications précédentes, dans lequel la base (25) comporte au moins un bras (40A) s'étendant sensiblement horizontalement lorsque la base (25) est fixée à la face inférieure, le bras (45) présentant une face supérieure lorsque la base (25) est fixée à la face inférieure, chaque face supérieure comportant une dépression (43) s'étendant selon un axe (A) de rotation du support (30), le support (30) comportant au moins un élément de pivotement (65) s'étendant selon l'axe de rotation (A) et accueilli dans la dépression (43), l'élément de pivotement (65) étant configuré pour guider le support (30) en rotation par rapport à la base (25).Vehicle according to any one of the preceding claims, in which the base (25) comprises at least one arm (40A) extending substantially horizontally when the base (25) is fixed to the underside, the arm (45) having a upper face when the base (25) is fixed to the lower face, each upper face comprising a depression (43) extending along an axis (A) of rotation of the support (30), the support (30) comprising at least one pivoting element (65) extending along the axis of rotation (A) and accommodated in the depression (43), the pivoting element (65) being configured to guide the support (30) in rotation relative to the basis (25). Véhicule selon l'une quelconque des revendications précédentes, dans lequel un débattement angulaire entre la première position et la deuxième position est compris entre 45 degrés et 90 degrés, notamment égal à 60 degrés.Vehicle according to any one of the preceding claims, in which an angular movement between the first position and the second position is between 45 degrees and 90 degrees, in particular equal to 60 degrees. Véhicule selon l'une quelconque des revendications précédentes, dans lequel le véhicule est équipé d'un ensemble (10) comportant le dispositif de fixation (15) et une antenne (20) configurée pour être fixée au support (30).A vehicle according to any preceding claim, wherein the vehicle is fitted with an assembly (10) comprising the attachment device (15) and an antenna (20) configured to be attached to the mount (30). Véhicule selon la revendication 7, dans lequel, lorsque le support (30) est dans la première position, l'antenne (20) s'étend perpendiculairement à une direction verticale (Z) du véhicule.Vehicle according to claim 7, in which, when the support (30) is in the first position, the antenna (20) extends perpendicular to a vertical direction (Z) of the vehicle.
EP22214111.1A 2021-12-17 2022-12-16 Antenna mounting device, related assembly and public transport vehicle Pending EP4199248A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2113830A FR3131104A1 (en) 2021-12-17 2021-12-17 Antenna attachment device, assembly and associated public transport vehicle

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EP4199248A1 true EP4199248A1 (en) 2023-06-21

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EP (1) EP4199248A1 (en)
FR (1) FR3131104A1 (en)

Citations (5)

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US20010045913A1 (en) * 2000-02-04 2001-11-29 Fedder Ronald L. Manually operable mechanism permitting elevation angle adjustment for a satellite antenna
FR2983357A1 (en) * 2011-11-24 2013-05-31 Thales Sa Support for positioning antenna in horizontal/vertical position in e.g. vehicle, has fixed part including base and two walls, where support is locked in horizontal/vertical position of antenna by utilizing tightening system
CN103378403A (en) * 2012-04-27 2013-10-30 南车青岛四方机车车辆股份有限公司 Railway vehicle antenna installation device and installation method thereof
US20140270927A1 (en) * 2013-03-12 2014-09-18 Raytheon Company Remote antenna deployment latch
CN204775290U (en) * 2015-06-29 2015-11-18 中国铁路总公司 Ballastless track structure detection device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010045913A1 (en) * 2000-02-04 2001-11-29 Fedder Ronald L. Manually operable mechanism permitting elevation angle adjustment for a satellite antenna
FR2983357A1 (en) * 2011-11-24 2013-05-31 Thales Sa Support for positioning antenna in horizontal/vertical position in e.g. vehicle, has fixed part including base and two walls, where support is locked in horizontal/vertical position of antenna by utilizing tightening system
CN103378403A (en) * 2012-04-27 2013-10-30 南车青岛四方机车车辆股份有限公司 Railway vehicle antenna installation device and installation method thereof
US20140270927A1 (en) * 2013-03-12 2014-09-18 Raytheon Company Remote antenna deployment latch
CN204775290U (en) * 2015-06-29 2015-11-18 中国铁路总公司 Ballastless track structure detection device

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