EP3474568A1 - Vehicle wall and associated transport vehicle - Google Patents

Vehicle wall and associated transport vehicle Download PDF

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Publication number
EP3474568A1
EP3474568A1 EP18200882.1A EP18200882A EP3474568A1 EP 3474568 A1 EP3474568 A1 EP 3474568A1 EP 18200882 A EP18200882 A EP 18200882A EP 3474568 A1 EP3474568 A1 EP 3474568A1
Authority
EP
European Patent Office
Prior art keywords
exciter
panel
base
vehicle
retaining means
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.)
Granted
Application number
EP18200882.1A
Other languages
German (de)
French (fr)
Other versions
EP3474568B1 (en
Inventor
Jean-Luc TERRIER
Nathalie GAMBARD
Adrien BOULAY
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.)
Alstom Transport Technologies SAS
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Alstom Transport Technologies SAS
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Publication date
Application filed by Alstom Transport Technologies SAS filed Critical Alstom Transport Technologies SAS
Priority to PL18200882T priority Critical patent/PL3474568T3/en
Publication of EP3474568A1 publication Critical patent/EP3474568A1/en
Application granted granted Critical
Publication of EP3474568B1 publication Critical patent/EP3474568B1/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/021—Transducers or their casings adapted for mounting in or to a wall or ceiling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/05—Aspects relating to the positioning and way or means of mounting of exciters to resonant bending wave panels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion

Definitions

  • the present invention relates to a vehicle wall comprising a facing panel, an exciter in contact with the panel and at least one means for retaining the exciter against the panel.
  • the vehicle wall is in particular a ceiling wall of a train car to ensure the pleasant visual appearance of the passenger compartment of the vehicle and to broadcast sound information to travelers of the train.
  • An object of the invention is to obtain a vehicle wall allowing easy maintenance for the maintenance technician while preserving the integrity of the panel and therefore an acoustic performance preserved from the vehicle wall even after intervention on the exciter.
  • the invention relates to a vehicle wall, of the aforementioned type, characterized in that it comprises a connecting base attached to the panel and the or each retaining means is applied between the base and the exciter.
  • the invention also relates to a transport vehicle comprising a body and several vehicle walls located in the body, the vehicle walls being located along a longitudinal axis of the body, the exciters of each wall being arranged according to the longitudinal axis of the body.
  • the transport vehicle 10 illustrated by the Figure 1 is a car of a train carrying passengers.
  • the transport vehicle 10 comprises a box 12 carried by wheels, not shown.
  • Seats 14 are located in the body 12 allowing travelers to sit during transport.
  • a vehicle wall 16 according to the invention is fixed inside the body 12.
  • the vehicle wall 16 here forms the ceiling of the car, connected to the body 12 by supports 17.
  • the transport vehicle 10 comprises several walls 16 located along a longitudinal axis of the body 12, the longitudinal axis being parallel to the direction of movement of the vehicle 10.
  • the vehicle wall 16, illustrated by the Figure 2 comprises a facing panel 18, an exciter 20 in contact with the panel 18, a base 22 and means 24 for retaining the exciter with respect to the panel 18.
  • the panel 18 defines the passenger compartment and is turned towards the passengers.
  • the panel 18 is made of a flexible material.
  • the panel 18 advantageously has a honeycomb structure.
  • the panel 18 is an aluminum foil.
  • the panel 18 is a laminate, that is to say formed of layers laminated to each other.
  • the base 22 is advantageously a plate located on the panel 18.
  • the base 22 is advantageously a sound insulation layer.
  • the base 22 is fixed on the panel 18.
  • the base 22 is bonded to the panel 18 over their entire common surface.
  • the base 22 advantageously defines a cavity 26 in which the exciter 20 is received.
  • the cavity 26 is advantageously situated in the central part of the panel 18.
  • the base 22 has at least two substantially parallel edges delimiting the cavity 26.
  • the vehicle wall 16 advantageously comprises a frame 28 covering the edges of the base 22.
  • the frame 28 is advantageously inserted into the cavity 26.
  • the frame 28 has a bowl shape with a perforated bottom 30 at its center, a peripheral lateral wall 32 and a peripheral flange forming a flange 34 ensuring its connection to the base 22.
  • the rim 34 is of rectangular shape and is located in a horizontal plane parallel to the panel 18.
  • the rim 34 rests on the base 22, advantageously on the edge of the cavity 26 and is glued to the panel 18 by a layer of glue 36.
  • the wall 32 extends along the edges of the cavity 26 and the bottom 30 extends along the panel 18, advantageously being bonded to the panel 18.
  • the bottom 30 extends along the panel 18 kept away from it by a suitable choice of the height of the side wall 32.
  • the bottom 30 defines a hole forming a location 38 located, advantageously, substantially in the central part of the bottom 30.
  • the vehicle wall 16 here comprises two retaining means 24 applied between the base 22 and the exciter 20.
  • Each retaining means 24 has a shape of L-shaped bracket, a first branch 40 being fixed to the base 22, preferably via the flange 34, and a second branch 42 pressing on the exciter 20.
  • the exciter 20 is advantageously an electromagnetic exciter.
  • the exciter 20 is located inside the base 22.
  • the exciter is advantageously received inside the location 38.
  • the exciter 20 is held fixed to the panel 18 only via the retaining means 24 and without using other fastening means, in particular without using fastening means extending directly between the exciter 20 and the panel 18.
  • the exciter 20 comprises an outer housing 44 in the shape of a bowl whose periphery is provided with a retaining flange 46 bearing on the panel 18.
  • a moving element is disposed in the bowl of the housing 44 and comprises a free end which emerges through an opening of the bowl of the housing 44 and is held against an inner surface of the panel 18.
  • the flange 46 has four retaining holes 48 disposed at the four corners of a square.
  • a free end of the branch 42 bears in pretension against the exciter and, in this example, against one face of the flange 46 of the exciter 20.
  • the two retaining means 24 support each other on both sides. another of the exciter 20, on respective longitudinal edges of the exciter 20 and in particular of the flange 46.
  • Each retaining means 24 is advantageously elastic and preferably applied only between the base 22 and the exciter 20 with a preload thus making it possible to keep the exciter 20 in permanent contact with the panel 18 when the exciter 20 and the panel 18 are vibrating, the second leg 42 exerting pressure on the exciter 20.
  • each retaining means 24 is fixed to the flange 34 of the frame 28 by two rivets 50 passing through the first leg 40. In a variant, each retaining means 24 is fixed to the frame 28 by screws.
  • the flange 34 is located between the base 22 and the retaining means 24.
  • the retaining means 24 are thus connected to the base 22 via the flange 34 of the frame 28.
  • each retaining means 24 has two studs 52 projecting from the free end of the second limb 42.
  • the pads 52 are received in the four holes 48 located at the four corners of the exciter 20, the section of the holes 48 being slightly greater than the section of the pads 52.
  • Each stud 52 is housed in a hole 48 thus allowing the exciter 20 to remain in position against the panel 18.
  • the vehicle wall 16 also comprises an upper cover, not shown in the figures.
  • the top cover is located next to the cavity 26 and is fixed on the flange 34 of the frame 28.
  • the upper cover protects the elements located in the cavity 26, the exciter 20.
  • a service technician unlocks locks for closing the vehicle wall 16, not shown here.
  • the technician removes the vehicle wall 16 from the ceiling and removes the rivets 50.
  • the technician removes the retaining means 24 and the faulty exciter 20.
  • the technician replaces the defective exciter 20 with a new exciter 20 and positions the new exciter 20 against the panel 18.
  • the technician repositions the retaining means 24 by introducing the studs 52 into the holes 48 and introduces the rivets 50 thus fixing the retaining means 24 to the base 22.
  • the technician repositions the wall of the vehicle 16 in the ceiling and locks the closing latches of the vehicle wall 16.
  • the method of maintenance of a vehicle wall 16 according to the invention is easy and fast for the service technician.
  • the maintenance process does not deteriorate the panel 18, the technician having no operation to be performed on the panel 18.
  • the acoustic performance of the wall of the vehicle 16 is thus preserved.

Abstract

La présente invention concerne une paroi de véhicule comprenant un panneau de parement (18), un excitateur (20) en contact avec le panneau (18), au moins un moyen de retenue (24) de l'excitateur contre le panneau (18) et un socle (22) de liaison fixé au panneau (18). Le ou chaque moyen de retenue (24) est appliqué entre le socle (22) et l'excitateur (20).

Figure imgaf001
The present invention relates to a vehicle wall comprising a cladding panel (18), an exciter (20) in contact with the panel (18), at least one retaining means (24) of the exciter against the panel (18). and a connecting base (22) attached to the panel (18). The or each retaining means (24) is applied between the base (22) and the exciter (20).
Figure imgaf001

Description

La présente invention concerne une paroi de véhicule comprenant un panneau de parement, un excitateur en contact avec le panneau et au moins un moyen de retenue de l'excitateur contre le panneau.The present invention relates to a vehicle wall comprising a facing panel, an exciter in contact with the panel and at least one means for retaining the exciter against the panel.

La paroi de véhicule est notamment une paroi de plafond d'une voiture de train permettant d'assurer l'aspect visuel agréable de l'habitacle du véhicule et de diffuser des informations sonores aux voyageurs du train.The vehicle wall is in particular a ceiling wall of a train car to ensure the pleasant visual appearance of the passenger compartment of the vehicle and to broadcast sound information to travelers of the train.

Afin d'éviter l'usage de haut-parleurs ponctuels rapportés sur les panneaux d'un véhicule, il est connu de réaliser une paroi de véhicule comportant un excitateur et un panneau sur lequel est fixé un excitateur, l'excitateur faisant vibrer le panneau. Le panneau est notamment un panneau de garnissage du plafond d'une voiture de train. Dans EP 1 734 787 , l'excitateur est vissé directement sur le panneau ou plaqué contre le panneau au moyen d'une bride vissée dans le panneau.In order to avoid the use of point speakers reported on the panels of a vehicle, it is known to make a vehicle wall comprising an exciter and a panel on which is fixed an exciter, the exciter vibrating the panel . The panel is including a ceiling trim panel of a train car. In EP 1 734 787 , the exciter is screwed directly to the panel or pressed against the panel by means of a flange screwed into the panel.

Une telle solution ne permet pas une maintenance facile et optimale des parois de véhicule du fait des vis que le technicien de maintenance doit dévisser à chaque remplacement de l'excitateur puis revisser dans le panneau. Ces multiples vissages et dévissages de vis dans le panneau conduisent à la détérioration du panneau et donc à une perte de performance acoustique.Such a solution does not allow easy and optimal maintenance of the vehicle walls because of the screws that the maintenance technician must unscrew each time the exciter is replaced and then screw back into the panel. These multiple screwings and unscrewed screws in the panel lead to the deterioration of the panel and therefore to a loss of acoustic performance.

Un but de l'invention est d'obtenir une paroi de véhicule permettant une maintenance aisée pour le technicien de maintenance tout en préservant l'intégrité du panneau et donc une performance acoustique préservée de la paroi de véhicule même après intervention sur l'excitateur.An object of the invention is to obtain a vehicle wall allowing easy maintenance for the maintenance technician while preserving the integrity of the panel and therefore an acoustic performance preserved from the vehicle wall even after intervention on the exciter.

A cet effet, l'invention a pour objet une paroi de véhicule, du type précité, caractérisée en ce qu'elle comporte un socle de liaison fixé au panneau et le ou chaque moyen de retenue est appliqué entre le socle et l'excitateur.To this end, the invention relates to a vehicle wall, of the aforementioned type, characterized in that it comprises a connecting base attached to the panel and the or each retaining means is applied between the base and the exciter.

Suivant des modes particuliers de réalisation, la paroi de véhicule comprend l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant toute combinaison techniquement possible :

  • chaque moyen de retenue est élastique et précontraint entre le socle et l'excitateur pour solliciter l'excitateur vers le panneau,
  • le socle est collé au panneau,
  • l'excitateur est situé en partie centrale du panneau,
  • le ou chaque moyen de retenue possède une forme d'équerre, une première branche étant fixée au socle et une deuxième branche appuyant sur l'excitateur,
  • la deuxième branche appuyant sur l'excitateur comprend au moins un plot de positionnement et l'excitateur comprend au moins un trou dans lequel est reçu le plot,
  • la paroi comprend un cadre entourant l'excitateur, le cadre étant partiellement interposé entre le socle et le ou chaque moyen de retenue, le ou chaque moyen de retenue étant relié au cadre, lequel cadre est relié au socle,
  • le socle est une plaque définissant une cavité dans laquelle est reçu l'excitateur,
  • la hauteur du socle mesurée perpendiculairement au panneau est plus importante que la hauteur de l'excitateur mesurée perpendiculairement au panneau.
According to particular embodiments, the vehicle wall comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
  • each retaining means is elastic and prestressed between the base and the exciter to urge the exciter towards the panel,
  • the base is glued to the panel,
  • the exciter is located in the central part of the panel,
  • the or each retaining means has a square shape, a first branch being fixed to the base and a second branch pressing on the exciter,
  • the second branch pressing the exciter comprises at least one positioning pad and the exciter comprises at least one hole in which the pad is received,
  • the wall comprises a frame surrounding the exciter, the frame being partially interposed between the base and the or each retaining means, the or each retaining means being connected to the frame, which frame is connected to the base,
  • the base is a plate defining a cavity in which the exciter is received,
  • the height of the base measured perpendicularly to the panel is greater than the height of the exciter measured perpendicular to the panel.

L'invention a également pour objet un véhicule de transport comprenant une caisse et plusieurs parois de véhicule située dans la caisse, les parois de véhicule étant situées le long d'un axe longitudinal de la caisse, les excitateurs de chaque paroi étant disposés suivant l'axe longitudinal de la caisse.The invention also relates to a transport vehicle comprising a body and several vehicle walls located in the body, the vehicle walls being located along a longitudinal axis of the body, the exciters of each wall being arranged according to the longitudinal axis of the body.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels :

  • la Figure 1 est une vue schématique de face, prise en coupe, d'un véhicule ferroviaire comprenant un plafond muni d'une paroi selon l'invention ;
  • la Figure 2 est une vue en perspective d'une paroi de véhicule selon l'invention ; et
  • la Figure 3 est une vue partielle, en coupe, d'une paroi de véhicule selon l'invention.
The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the appended drawings, in which:
  • the Figure 1 is a schematic front view, taken in section, of a railway vehicle comprising a ceiling provided with a wall according to the invention;
  • the Figure 2 is a perspective view of a vehicle wall according to the invention; and
  • the Figure 3 is a partial view, in section, of a vehicle wall according to the invention.

Le véhicule de transport 10 illustré par la Figure 1 est une voiture d'un train transportant des voyageurs.The transport vehicle 10 illustrated by the Figure 1 is a car of a train carrying passengers.

Le véhicule de transport 10 comporte une caisse 12 portée par des roues, non représentées.The transport vehicle 10 comprises a box 12 carried by wheels, not shown.

Des sièges 14 sont situés dans la caisse 12 permettant aux voyageurs de s'assoir pendant le transport.Seats 14 are located in the body 12 allowing travelers to sit during transport.

Une paroi de véhicule 16 selon l'invention est fixée à l'intérieur de la caisse 12. La paroi de véhicule 16 forme ici le plafond de la voiture, raccordée à la caisse 12 par des supports 17.A vehicle wall 16 according to the invention is fixed inside the body 12. The vehicle wall 16 here forms the ceiling of the car, connected to the body 12 by supports 17.

Avantageusement, le véhicule de transport 10 comporte plusieurs parois 16 situées le long d'un axe longitudinal de la caisse 12, l'axe longitudinal étant parallèle à la direction de déplacement du véhicule 10.Advantageously, the transport vehicle 10 comprises several walls 16 located along a longitudinal axis of the body 12, the longitudinal axis being parallel to the direction of movement of the vehicle 10.

La paroi de véhicule 16, illustrée par la Figure 2, comporte un panneau 18 de parement, un excitateur 20 en contact avec le panneau 18, un socle 22 et des moyens 24 de retenue de l'excitateur par rapport au panneau 18.The vehicle wall 16, illustrated by the Figure 2 , comprises a facing panel 18, an exciter 20 in contact with the panel 18, a base 22 and means 24 for retaining the exciter with respect to the panel 18.

Le panneau 18 délimite l'habitacle et est tourné vers les passagers.The panel 18 defines the passenger compartment and is turned towards the passengers.

Le panneau 18 est composé d'un matériau flexible.The panel 18 is made of a flexible material.

Le panneau 18 possède avantageusement une structure en nid d'abeille.The panel 18 advantageously has a honeycomb structure.

En variante, le panneau 18 est une feuille d'aluminium.Alternatively, the panel 18 is an aluminum foil.

En variante, le panneau 18 est un stratifié, c'est-à-dire formé de couches contrecollées les unes aux autres.Alternatively, the panel 18 is a laminate, that is to say formed of layers laminated to each other.

Le socle 22 est avantageusement une plaque située sur le panneau 18. Le socle 22 est avantageusement une couche d'isolation phonique.The base 22 is advantageously a plate located on the panel 18. The base 22 is advantageously a sound insulation layer.

Le socle 22 est fixé sur le panneau 18. Avantageusement, le socle 22 est collé au panneau 18 sur toute leur surface commune. Le socle 22 définit avantageusement une cavité 26 dans laquelle est reçu l'excitateur 20. La cavité 26 est située avantageusement en partie centrale du panneau 18.The base 22 is fixed on the panel 18. Advantageously, the base 22 is bonded to the panel 18 over their entire common surface. The base 22 advantageously defines a cavity 26 in which the exciter 20 is received. The cavity 26 is advantageously situated in the central part of the panel 18.

Le socle 22 comporte au moins deux bords sensiblement parallèles délimitant la cavité 26.The base 22 has at least two substantially parallel edges delimiting the cavity 26.

La paroi de véhicule 16 comprend avantageusement un cadre 28 recouvrant les bords du socle 22.The vehicle wall 16 advantageously comprises a frame 28 covering the edges of the base 22.

Le cadre 28 est avantageusement inséré dans la cavité 26. Le cadre 28 présente une forme de cuvette avec un fond 30 ajouré en son centre, une paroi latérale périphérique 32 et une collerette périphérique formant un rebord 34 assurant sa liaison au socle 22.The frame 28 is advantageously inserted into the cavity 26. The frame 28 has a bowl shape with a perforated bottom 30 at its center, a peripheral lateral wall 32 and a peripheral flange forming a flange 34 ensuring its connection to the base 22.

Avantageusement, le rebord 34 est de forme rectangulaire et est situé dans un plan horizontal parallèle au panneau 18.Advantageously, the rim 34 is of rectangular shape and is located in a horizontal plane parallel to the panel 18.

Le rebord 34 s'appuie sur le socle 22, avantageusement, sur le bord de la cavité 26 et est collé au panneau 18 par une couche de colle 36.The rim 34 rests on the base 22, advantageously on the edge of the cavity 26 and is glued to the panel 18 by a layer of glue 36.

La paroi 32 s'étend le long des bords de la cavité 26 et le fond 30 s'étend le long du panneau 18 en étant avantageusement collé au panneau 18.The wall 32 extends along the edges of the cavity 26 and the bottom 30 extends along the panel 18, advantageously being bonded to the panel 18.

En variante, le fond 30 s'étend le long du panneau 18 maintenu à l'écart de celui-ci par un choix adapté de la hauteur de la paroi latérale 32.Alternatively, the bottom 30 extends along the panel 18 kept away from it by a suitable choice of the height of the side wall 32.

Le fond 30 définit un trou formant un emplacement 38 situé, avantageusement, sensiblement en partie centrale du fond 30.The bottom 30 defines a hole forming a location 38 located, advantageously, substantially in the central part of the bottom 30.

La paroi de véhicule 16 comprend ici deux moyens de retenue 24 appliqués entre le socle 22 et l'excitateur 20. Chaque moyen de retenue 24 possède une forme d'équerre en L, une première branche 40 étant fixée au socle 22, avantageusement via le rebord 34, et une deuxième branche 42 appuyant sur l'excitateur 20.The vehicle wall 16 here comprises two retaining means 24 applied between the base 22 and the exciter 20. Each retaining means 24 has a shape of L-shaped bracket, a first branch 40 being fixed to the base 22, preferably via the flange 34, and a second branch 42 pressing on the exciter 20.

L'excitateur 20 est avantageusement un excitateur électromagnétique.The exciter 20 is advantageously an electromagnetic exciter.

L'excitateur 20 est situé à l'intérieur du socle 22. L'excitateur est, avantageusement, reçu à l'intérieur de l'emplacement 38.The exciter 20 is located inside the base 22. The exciter is advantageously received inside the location 38.

Avantageusement, l'excitateur 20 est maintenu fixé au panneau 18 uniquement via les moyens de retenue 24 et sans utiliser d'autres moyens de fixation, notamment sans utiliser des moyens de fixation s'étendant directement entre l'excitateur 20 et le panneau 18.Advantageously, the exciter 20 is held fixed to the panel 18 only via the retaining means 24 and without using other fastening means, in particular without using fastening means extending directly between the exciter 20 and the panel 18.

L'excitateur 20 comporte un boîtier 44 extérieur en forme de cuvette dont la périphérie est pourvue d'une collerette 46 de retenue en appui sur le panneau 18.The exciter 20 comprises an outer housing 44 in the shape of a bowl whose periphery is provided with a retaining flange 46 bearing on the panel 18.

Comme connu en soi, un équipage mobile est disposé dans la cuvette du boîtier 44 et comprend une extrémité libre qui émerge par une ouverture de la cuvette du boîtier 44 et est maintenue appliquée contre une surface interne du panneau 18.As known per se, a moving element is disposed in the bowl of the housing 44 and comprises a free end which emerges through an opening of the bowl of the housing 44 and is held against an inner surface of the panel 18.

La collerette 46 comporte quatre trous 48 de retenue disposés aux quatre coins d'un carré.The flange 46 has four retaining holes 48 disposed at the four corners of a square.

Une 'extrémité libre de la branche 42 est en appui sous précontrainte contre l'excitateur et, dans l'exemple considéré, contre une face de la collerette 46 de l'excitateur 20.Les deux moyens de retenue 24 appuient de part et d'autre de l'excitateur 20, sur des bords longitudinaux respectifs de l'excitateur 20 et notamment de la collerette 46.A free end of the branch 42 bears in pretension against the exciter and, in this example, against one face of the flange 46 of the exciter 20. The two retaining means 24 support each other on both sides. another of the exciter 20, on respective longitudinal edges of the exciter 20 and in particular of the flange 46.

Chaque moyen de retenue 24 est avantageusement élastique et appliqué de préférence seulement entre le socle 22 et l'excitateur 20 avec une précontrainte permettant ainsi de maintenir l'excitateur 20 en contact permanent avec le panneau 18 quand l'excitateur 20 et le panneau 18 sont en train de vibrer, la deuxième branche 42 exerçant une pression sur l'excitateur 20.Each retaining means 24 is advantageously elastic and preferably applied only between the base 22 and the exciter 20 with a preload thus making it possible to keep the exciter 20 in permanent contact with the panel 18 when the exciter 20 and the panel 18 are vibrating, the second leg 42 exerting pressure on the exciter 20.

Dans un mode de réalisation avantageux, chaque moyen de retenue 24 est fixé au rebord 34 du cadre 28 par deux rivets 50 traversant la première branche 40. En variante, chaque moyen de retenue 24 est fixé à au cadre 28 par des vis.In an advantageous embodiment, each retaining means 24 is fixed to the flange 34 of the frame 28 by two rivets 50 passing through the first leg 40. In a variant, each retaining means 24 is fixed to the frame 28 by screws.

Le rebord 34 se situe entre le socle 22 et les moyens de retenue 24. Les moyens de retenue 24 sont donc liés au socle 22 via le rebord 34 du cadre 28.The flange 34 is located between the base 22 and the retaining means 24. The retaining means 24 are thus connected to the base 22 via the flange 34 of the frame 28.

Comme illustré sur la Figure 3, la deuxième branche 42 de chaque moyen de retenue 24 comporte deux plots 52 faisant saillie de l'extrémité libre de la deuxième branche 42.As illustrated on the Figure 3 the second limb 42 of each retaining means 24 has two studs 52 projecting from the free end of the second limb 42.

Les plots 52 sont reçus dans les quatre trous 48 situés aux quatre coins de l'excitateur 20, la section des trous 48 étant légèrement supérieure à la section des plots 52.The pads 52 are received in the four holes 48 located at the four corners of the exciter 20, the section of the holes 48 being slightly greater than the section of the pads 52.

Chaque plot 52 est logé dans un trou 48 permettant ainsi le maintien en position de l'excitateur 20 contre le panneau 18.Each stud 52 is housed in a hole 48 thus allowing the exciter 20 to remain in position against the panel 18.

De façon avantageuse, la paroi de véhicule 16 comporte également un capot supérieur, non représenté sur les figures. Le capot supérieur est situé en regard de la cavité 26 et est fixé sur le rebord 34 du cadre 28. Le capot supérieur permet de protéger les éléments situés dans la cavité 26 dont l'excitateur 20.Advantageously, the vehicle wall 16 also comprises an upper cover, not shown in the figures. The top cover is located next to the cavity 26 and is fixed on the flange 34 of the frame 28. The upper cover protects the elements located in the cavity 26, the exciter 20.

Un procédé de maintenance d'une paroi de véhicule 16 selon l'invention comportant un excitateur 20 défectueux va maintenant être décrit.A method of maintaining a vehicle wall 16 according to the invention with a faulty exciter 20 will now be described.

Un technicien de maintenance déverrouille des verrous de fermeture de la paroi du véhicule 16, non représentés ici.A service technician unlocks locks for closing the vehicle wall 16, not shown here.

Le technicien enlève la paroi de véhicule 16 du plafond et enlève les rivets 50.The technician removes the vehicle wall 16 from the ceiling and removes the rivets 50.

Le technicien retire les moyens de retenue 24 et l'excitateur 20 défectueux.The technician removes the retaining means 24 and the faulty exciter 20.

Le technicien remplace l'excitateur défectueux 20 par un nouvel excitateur 20 et positionne le nouvel excitateur 20 contre le panneau 18.The technician replaces the defective exciter 20 with a new exciter 20 and positions the new exciter 20 against the panel 18.

Le technicien repositionne les moyens de retenue 24 en introduisant les plots 52 dans les trous 48 et introduit les rivets 50 fixant ainsi les moyens de retenues 24 au socle 22.The technician repositions the retaining means 24 by introducing the studs 52 into the holes 48 and introduces the rivets 50 thus fixing the retaining means 24 to the base 22.

Le technicien repositionne la paroi du véhicule 16 dans le plafond et verrouille les verrous de fermeture de la paroi de véhicule 16.The technician repositions the wall of the vehicle 16 in the ceiling and locks the closing latches of the vehicle wall 16.

Le procédé de maintenance d'une paroi de véhicule 16 selon l'invention est aisé et rapide pour le technicien de maintenance. Le procédé de maintenance ne détériore pas le panneau 18, le technicien n'ayant aucune opération à effectuer sur le panneau 18. La performance acoustique de la paroi du véhicule 16 est ainsi préservée.The method of maintenance of a vehicle wall 16 according to the invention is easy and fast for the service technician. The maintenance process does not deteriorate the panel 18, the technician having no operation to be performed on the panel 18. The acoustic performance of the wall of the vehicle 16 is thus preserved.

Claims (9)

Paroi de véhicule (16) comprenant : - un panneau de parement (18) ; - un excitateur (20) en contact avec le panneau (18) ; - au moins un moyen de retenue (24) de l'excitateur (20) contre le panneau (18), l'excitateur (20) étant maintenu fixé au panneau (18) uniquement via les moyens de retenue (24) ; caractérisée en ce qu'elle comporte un socle (22) de liaison fixé au panneau (18) et le ou chaque moyen de retenue (24) est appliqué entre le socle (22) et l'excitateur (20),
le ou chaque moyen de retenue (24) est élastique et précontraint entre le socle (22) et l'excitateur (20) pour solliciter l'excitateur (20) vers le panneau (18).Vehicle wall (16) comprising: - a facing panel (18); an exciter (20) in contact with the panel (18); - at least one retaining means (24) of the exciter (20) against the panel (18), the exciter (20) being held fixed to the panel (18) only via the retaining means (24); characterized in that it comprises a connecting base (22) fixed to the panel (18) and the or each retaining means (24) is applied between the base (22) and the exciter (20),
the or each retaining means (24) is elastic and prestressed between the base (22) and the exciter (20) to bias the exciter (20) towards the panel (18). Paroi de véhicule (16) selon la revendication 1, dans laquelle le socle (22) est collé au panneau (18).The vehicle wall (16) of claim 1, wherein the base (22) is bonded to the panel (18). Paroi de véhicule (16) selon l'une quelconque des revendications 1 à 2, dans laquelle l'excitateur (20) est situé en partie centrale du panneau (18).Vehicle wall (16) according to any one of claims 1 to 2, wherein the exciter (20) is located in the central portion of the panel (18). Paroi de véhicule (16) selon l'une quelconque des revendications précédentes, dans laquelle le ou chaque moyen de retenue (24) possède une forme d'équerre, une première branche (40) étant fixée au socle (22) et une deuxième branche (42) appuyant sur l'excitateur (20).A vehicle wall (16) according to any one of the preceding claims, wherein the or each retaining means (24) has a square shape, a first leg (40) being attached to the base (22) and a second leg (42) pressing the exciter (20). Paroi de véhicule (16) selon la revendication 4, dans laquelle la deuxième branche (40) appuyant sur l'excitateur (20) comprend au moins un plot (52) de positionnement et l'excitateur (20) comprend au moins un trou (48) dans lequel est reçu le plot (52).Vehicle wall (16) according to claim 4, in which the second arm (40) pressing on the exciter (20) comprises at least one positioning pad (52) and the exciter (20) comprises at least one hole ( 48) in which the stud (52) is received. Paroi de véhicule (16) selon l'une quelconques des revendications précédentes, comprenant un cadre (28) entourant l'excitateur (20), le cadre (28) étant partiellement interposé entre le socle (22) et le ou chaque moyen de retenue (24), le ou chaque moyen de retenue (24) étant relié au cadre (28), lequel cadre (28) est relié au socle (22).A vehicle wall (16) according to any one of the preceding claims comprising a frame (28) surrounding the exciter (20), the frame (28) being partially interposed between the base (22) and the or each retaining means (24), the or each retaining means (24) being connected to the frame (28), which frame (28) is connected to the base (22). Paroi de véhicule (16) selon l'une quelconques des revendications précédentes, dans laquelle le socle (22) est une plaque définissant une cavité (26) dans laquelle est reçu l'excitateur (20).A vehicle wall (16) according to any one of the preceding claims, wherein the base (22) is a plate defining a cavity (26) in which the exciter (20) is received. Paroi de véhicule (16) selon l'une quelconques des revendications précédentes, dans laquelle la hauteur du socle (22) mesurée perpendiculairement au panneau (18) est plus importante que la hauteur de l'excitateur (20) mesurée perpendiculairement au panneau (18).A vehicle wall (16) according to any one of the preceding claims, wherein the height of the base (22) measured perpendicularly to the panel (18) is greater than the height of the exciter (20) measured perpendicularly to the panel (18). ). Véhicule de transport comprenant une caisse (12) et plusieurs parois de véhicule (16) selon l'une quelconque des revendications précédentes située dans la caisse (12), les parois de véhicule (16) étant situées le long d'un axe longitudinal de la caisse (12), les excitateurs (20) de chaque paroi (16) étant disposés suivant l'axe longitudinal de la caisse (12).A transport vehicle comprising a crate (12) and a plurality of vehicle walls (16) according to any one of the preceding claims located in the crate (12), the vehicle walls (16) being located along a longitudinal axis of the body (12), the exciters (20) of each wall (16) being arranged along the longitudinal axis of the body (12).
EP18200882.1A 2017-10-18 2018-10-17 Vehicle wall and associated transport vehicle Active EP3474568B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18200882T PL3474568T3 (en) 2017-10-18 2018-10-17 Vehicle wall and associated transport vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1759766A FR3072340B1 (en) 2017-10-18 2017-10-18 VEHICLE WALL AND ASSOCIATED TRANSPORT VEHICLE

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EP3474568A1 true EP3474568A1 (en) 2019-04-24
EP3474568B1 EP3474568B1 (en) 2020-07-15

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EP (1) EP3474568B1 (en)
FR (1) FR3072340B1 (en)
PL (1) PL3474568T3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000070908A2 (en) * 1999-05-14 2000-11-23 New Transducers Limited Bending wave loudspeakers
US20070030985A1 (en) * 2005-08-03 2007-02-08 Cheung Kwun-Wing W Flat panel loudspeaker system
US20170289695A1 (en) * 2015-11-16 2017-10-05 Anthony Bongiovi Surface acoustic transducer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000070908A2 (en) * 1999-05-14 2000-11-23 New Transducers Limited Bending wave loudspeakers
US20070030985A1 (en) * 2005-08-03 2007-02-08 Cheung Kwun-Wing W Flat panel loudspeaker system
US20170289695A1 (en) * 2015-11-16 2017-10-05 Anthony Bongiovi Surface acoustic transducer

Also Published As

Publication number Publication date
PL3474568T3 (en) 2020-12-14
FR3072340B1 (en) 2020-11-06
FR3072340A1 (en) 2019-04-19
EP3474568B1 (en) 2020-07-15

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