EP3632136B1 - Electrodynamic loudspeaker having a centred suspension joint - Google Patents

Electrodynamic loudspeaker having a centred suspension joint Download PDF

Info

Publication number
EP3632136B1
EP3632136B1 EP18726191.2A EP18726191A EP3632136B1 EP 3632136 B1 EP3632136 B1 EP 3632136B1 EP 18726191 A EP18726191 A EP 18726191A EP 3632136 B1 EP3632136 B1 EP 3632136B1
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
assembly
joint
frame
proximal part
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.)
Active
Application number
EP18726191.2A
Other languages
German (de)
French (fr)
Other versions
EP3632136A1 (en
Inventor
Max RAINER
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.)
Devialet SA
Original Assignee
Devialet SA
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 Devialet SA filed Critical Devialet SA
Publication of EP3632136A1 publication Critical patent/EP3632136A1/en
Application granted granted Critical
Publication of EP3632136B1 publication Critical patent/EP3632136B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
    • H04R2231/003—Manufacturing aspects of the outer suspension of loudspeaker or microphone diaphragms or of their connecting aspects to said diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/204—Material aspects of the outer suspension of loudspeaker diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms

Definitions

  • the present invention relates to an electrodynamic loudspeaker comprising a chassis, an assembly movable relative to the chassis in translation along an axis of the loudspeaker around a position of equilibrium occupied when the loudspeaker is at rest, the assembly comprising at least one membrane configured to emit sound waves, and at least one suspension joint of the assembly, the seal forming a loop around the assembly, and comprising: a first end fixed to the assembly, a second end fixed to the frame, and a main part connecting the first end and the second end and ensuring axial flexibility of the joint.
  • the invention also relates to an acoustic enclosure incorporating such a loudspeaker, and a motor vehicle comprising at least one such acoustic enclosure.
  • the invention finally relates to a method of installing at least one suspension joint in such a loudspeaker.
  • the loudspeaker results from the assembly of a plurality of parts and its sound qualities can be positively or negatively influenced by the quality of the assembly.
  • WO2013 / 098236 describes a suspension element which compensates for manufacturing and assembly tolerances so that, for example, mechanical staining of the transducer and unwanted acoustic leaks can be avoided.
  • a loudspeaker comprising a membrane connected to a frame by an elastomeric seal. One end of the seal is attached to the frame and has an appendage or arched portion for compression.
  • An object of the invention is therefore to provide a loudspeaker of the type described above, the sound quality of which is little or not influenced by the assembly operations, in particular of the suspension joint, and to facilitate assembly.
  • the invention relates to a loudspeaker according to claim 1.
  • the loudspeaker comprises one or more of the characteristics corresponding to claims 2 to 6, taken in isolation or in any technically possible combination.
  • the subject of the invention is also an acoustic enclosure according to claim 7. Finally, the subject of the invention is a method according to claim 8.
  • the method comprises one or more of the characteristics corresponding to claims 9 and 10, taken in isolation or in any technically possible combination.
  • the acoustic enclosure 1 is for example suitable for being integrated into the passenger compartment (not shown) of a motor vehicle (not shown).
  • the acoustic enclosure 1 comprises a box 3, a loudspeaker 5 according to the invention, and advantageously other loudspeakers 7, 9, 11.
  • the box 3 has for example a generally spherical shape, with the exception, in the example shown, of a substantially planar face 13 surrounding the loudspeaker 11.
  • Loudspeaker 7 is structurally analogous to loudspeaker 5 and will not be described in detail.
  • the loudspeaker 7 is advantageously mounted head-to-tail with the loudspeaker 5 along an axis D of the latter.
  • the loudspeaker 7 is for example a bass loudspeaker, that is to say configured to transmit in a bandwidth extending for example from 15 Hz to approximately 500 Hz.
  • the loudspeaker 9 is for example a midrange and treble loudspeaker, that is to say configured for example to transmit in a passband extending for example from 200 Hz to 25 kHz.
  • the loudspeaker 9 has a protective grid 15 advantageously situated in the continuity of the box 3.
  • the loudspeaker 9 is configured to transmit directly into an interior volume (not shown) of the passenger compartment of the motor vehicle.
  • the loudspeaker 11 is for example also configured to transmit in the midrange and the treble, but in one or more conduits (not shown) defined by the passenger compartment of the motor vehicle.
  • the loudspeaker 5 comprises a frame 17, a magnetic circuit 19 defining at least one air gap 21, an assembly 23 movable relative to the frame in translation along the axis D of the loudspeaker around an occupied equilibrium position when the loudspeaker is at rest, and two joints 25, 27 for suspension of the assembly.
  • the frame 17 is quite small.
  • the frame 17 is mechanically secured to the box 3.
  • the assembly 23 comprises a membrane 29 configured to emit sound waves, a reel holder 31 fixed on the membrane, a reel 33 fixed on the reel holder and located in the air gap 21, and a connecting member 35 also fixed. on the membrane.
  • the membrane 29 is for example convex, the convexity being advantageously turned towards the outside of the loudspeaker 5.
  • the membrane 29 is for example spherical, with the exception of a peripheral edge 39.
  • the peripheral edge 39 is located opposite an edge 41 of the box 3 defining an opening through which the membrane 29 extends.
  • the spool holder 31 and the connecting member 35 have for example a substantially cylindrical shape of axis D.
  • Gaskets 25, 27 are structurally similar, so only gasket 25 will be described in detail hereinafter.
  • the seal 25 forms an elastic loop around the assembly 23.
  • the seal 25 comprises a first end 39A fixed to the assembly 23, a second end 41A fixed to the frame 17, and a main part 43 connecting the first end and the second end and ensuring axial flexibility of the seal.
  • the seal 25 defines a gutter 45 advantageously located under the edges 39, 41 of the membrane 29 and of the box 3.
  • the seal 25 has a cradle cross section in the equilibrium position.
  • the first end 39A and the second end 41A for example respectively form flanges oriented substantially radially and facilitating the fixing of the gasket 25.
  • the second end 41A is advantageously glued to the frame 17, for example by a lower face 47 directed towards the interior side of the loudspeaker 5.
  • first end 39A and the second end 41A are for example located axially substantially at the same level.
  • the first end 39A is for example glued to a ring 49 mechanically secured to the connecting member 35.
  • the first end 39A comprises a distal part 51 with respect to the main part 43, and a proximal part 53 ( figure 3 ).
  • the distal part 51 is radially closer to the axis D than the proximal part 53.
  • the first end 39A is for example glued to an internal face 54 of the ring 49.
  • the distal part 51 is more radially compressible than the proximal part 53, and is compressed radially between the distal part and a stop 55 of the ring 49.
  • radially compressed is meant here that the distal part 51 receives pressure in the radial direction originating both from the proximal part 53 and from the stop 55.
  • the distal part 51 has a distal compressibility coefficient.
  • the proximal portion 53 has a coefficient of proximal compressibility.
  • the distal compressibility coefficient is advantageously at least twice, preferably ten times, or even a hundred times, greater than the greater than the proximal compressibility coefficient.
  • the sign "-" allows to have a positive result, because the derivative dL / dF is negative.
  • This quantity represents the propensity to contract under the effect of a radial force.
  • the distal portion 51 contracts more easily than the proximal portion 53 in the radial direction.
  • the distal portion 51 is formed by a lip 57 projecting radially inwardly from the proximal portion 53.
  • the lip 57 is bent against the face 55 and deflected for example towards the inside of the loudspeaker 5.
  • the main part 43 of the seal 27 is not turned towards the inside of the loudspeaker 5, but towards the membrane 29.
  • the first end 39A of the seal 25 is coated with glue.
  • the seal 25 is then placed around the assembly 23 so as to form a loop around the axis D.
  • the glued part of the first end 39A is placed against the lower face 54 of the ring 49.
  • the lip 57 is placed. in bending against the radially outer face 55 of the ring 49.
  • the distal part 51 of the first end 39A is compressed radially against the face 55, due to the fact that the loop formed by the seal 25 is disposed around the assembly 23.
  • the greater compressibility of the distal portion 51 of the first end 39A of the seal 25 allows centering of the seal relative to the assembly 23 and prevents the first end 39A from being stretched lengthwise around the axis D .
  • the greater compressibility of the distal part 51 also makes it possible to compensate for the fact that the diameter of the first end around the axis D is a little too large or a little too small due to the manufacturing tolerances of the seal 25.
  • the proximal part 53 is fixed to the assembly 23 by gluing.
  • the second end 41A ( figure 2 ) is also glued to the frame 17.
  • the seal 25 is then in place and perfectly centered.
  • the seals 25, 27 are put in place more easily and their centering is easier, which reduces the risks of improper placement of the seals or of a tension of the first end 39A in the sense of its length.
  • the seal 125 is analogous to the seal 25. Similar elements will not be described again. Only the differences will be described in detail below.
  • the distal part 51 has a distal thickness E1 along the axis D.
  • the proximal part 53 has a proximal thickness E2.
  • the proximal thickness E2 is strictly greater than the distal thickness E1.
  • distal portion 51 has a compressibility in the radial direction greater than the compressibility of the proximal portion 53.
  • the proximal thickness E2 is 3 times, preferably 10 times, greater than the distal thickness E1.
  • Seal 125 is installed in the same way as seal 25.
  • seal 225 constituting a second variant of the seal 25 shown in figures 2 and 3 .
  • Seal 225 is analogous to seal 25. Similar elements will not be described again. Only the differences will be described in detail below.
  • first end 39A includes a distal portion 251 separate from proximal portion 53. Stated otherwise, seal 225 is in two pieces.
  • the distal portion 251 is adapted to be removed once the seal 225 has been placed and the centering relative to the assembly 23 has been effected.
  • the proximal part 53 is coated with glue and placed against the ring 49. Once the centering has been carried out, the distal part 251 is removed, which does not remain in the loudspeaker 5.
  • seal 325 constituting a variant of the seal 225 shown in figure 5 .
  • the seal 325 is similar to the seal 225.
  • the distal portion 51 of the first end 39A does not constitute a separate element from the proximal portion 53, but is linked to the proximal portion 53 by a frangible connection 354.
  • the distal portion 51 is separated from the proximal portion 53 and removed from the speaker 5.
  • the proximal part of the first end 39A is for example made from a material different from that of the distal part.
  • the proximal part is made of SB (styrene-butadiene) with a hardness of 60 Shore A, while the distal part is made of cellular EPDM (ethylene-propylene-diene).
  • the second end 41A also comprises a distal part 51, and a proximal part 53 which is less compressible radially than the distal part.
  • this is obtained by virtue of a lip 357 similar to the lip 57 shown in figure 3 .
  • the distal part 51 of the second end 41A is radially further from the axis D than the proximal part 53.
  • the difference in compressibility is obtained in different ways as explained above for the first end 39A.
  • the greatest radial compressibility of the distal part of the first end 39A and / or of the second end 41A is ensured respectively by a lip, a smaller axial thickness, and / or a different material. , these different possibilities possibly being combined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Description

La présente invention concerne un haut-parleur électrodynamique comportant un châssis, un ensemble mobile par rapport au châssis en translation selon un axe du haut-parleur autour d'une position d'équilibre occupée lorsque le haut-parleur est au repos, l'ensemble comportant au moins une membrane configurée pour émettre des ondes sonores, et au moins un joint de suspension de l'ensemble, le joint formant une boucle autour de l'ensemble, et comprenant : une première extrémité fixée sur l'ensemble, une deuxième extrémité fixée sur le châssis, et une partie principale reliant la première extrémité et la deuxième extrémité et assurant une souplesse axiale du joint.The present invention relates to an electrodynamic loudspeaker comprising a chassis, an assembly movable relative to the chassis in translation along an axis of the loudspeaker around a position of equilibrium occupied when the loudspeaker is at rest, the assembly comprising at least one membrane configured to emit sound waves, and at least one suspension joint of the assembly, the seal forming a loop around the assembly, and comprising: a first end fixed to the assembly, a second end fixed to the frame, and a main part connecting the first end and the second end and ensuring axial flexibility of the joint.

L'invention concerne également une enceinte acoustique intégrant un tel haut-parleur, et un véhicule automobile comprenant au moins une telle enceinte acoustique.The invention also relates to an acoustic enclosure incorporating such a loudspeaker, and a motor vehicle comprising at least one such acoustic enclosure.

L'invention concerne enfin un procédé d'installation d'au moins un joint de suspension dans un tel haut-parleur.The invention finally relates to a method of installing at least one suspension joint in such a loudspeaker.

Le haut-parleur résulte de l'assemblage d'une pluralité de pièces et ses qualités sonores peuvent être influencées positivement ou négativement par la qualité de l'assemblage.The loudspeaker results from the assembly of a plurality of parts and its sound qualities can be positively or negatively influenced by the quality of the assembly.

Parmi ces pièces se trouve en général un joint souple permettant de suspendre l'ensemble mobile au voisinage de la périphérie de la membrane. Ce joint est disposé tout autour de l'ensemble mobile et sa mise en place s'avère parfois délicate.Among these parts is generally a flexible seal making it possible to suspend the movable assembly in the vicinity of the periphery of the membrane. This seal is arranged all around the movable assembly and its installation is sometimes difficult.

Par exemple, s'il y a un défaut de coaxialité entre l'axe du joint et l'axe du haut-parleur, son comportement mécanique est éventuellement affecté.For example, if there is a coaxiality defect between the axis of the seal and the axis of the loudspeaker, its mechanical behavior is possibly affected.

De même, s'il y a un défaut de coaxialité entre l'axe d'un rebord du joint et l'axe du haut-parleur ou une mise en tension dans le sens de sa longueur autour de l'axe du haut-parleur d'un rebord du joint, son comportement mécanique est éventuellement affecté par la présence de contraintes dans le bordLikewise, if there is a lack of coaxiality between the axis of a flange of the seal and the axis of the loudspeaker or a tensioning in the direction of its length around the axis of the loudspeaker of a joint edge, its mechanical behavior is possibly affected by the presence of stresses in the edge

WO2013/098236 décrit un élément de suspension qui compense les tolérances de fabrication et d'assemblage de sorte que, par exemple, la tache mécanique du transducteur et les fuites acoustiques indésirables peuvent être évitées. Ainsi, le document décrit un haut-parleur comportant une membrane reliée à un châssis par un joint élastomère. Une extrémité du joint est fixée sur le châssis et possède un appendice ou une partie arquée destiné(e) à être comprimé(e). WO2013 / 098236 describes a suspension element which compensates for manufacturing and assembly tolerances so that, for example, mechanical staining of the transducer and unwanted acoustic leaks can be avoided. Thus, the document describes a loudspeaker comprising a membrane connected to a frame by an elastomeric seal. One end of the seal is attached to the frame and has an appendage or arched portion for compression.

Un but de l'invention est donc de fournir un haut-parleur du type décrit ci-dessus, dont la qualité sonore est peu ou pas influencée par les opérations d'assemblage, notamment du joint de suspension et de faciliter l'assemblage.An object of the invention is therefore to provide a loudspeaker of the type described above, the sound quality of which is little or not influenced by the assembly operations, in particular of the suspension joint, and to facilitate assembly.

A cet effet, l'invention a pour objet un haut-parleur selon la revendication 1.To this end, the invention relates to a loudspeaker according to claim 1.

Selon des modes particuliers de réalisation, le haut-parleur comprend l'une ou plusieurs des caractéristiques correspondant aux revendications 2 à 6, prise(s) isolément ou selon toutes les combinaisons techniquement possibles .According to particular embodiments, the loudspeaker comprises one or more of the characteristics corresponding to claims 2 to 6, taken in isolation or in any technically possible combination.

L'invention a aussi pour objet une enceinte acoustique selon la revendication 7. L'invention a enfin pour objet un procédé selon la revendication 8.The subject of the invention is also an acoustic enclosure according to claim 7. Finally, the subject of the invention is a method according to claim 8.

Selon des modes particuliers de réalisation, le procédé comprend l'une ou plusieurs des caractéristiques correspondant aux revendications 9 et 10, prise(s) isolément ou selon toutes les combinaisons techniquement possibles.According to particular embodiments, the method comprises one or more of the characteristics corresponding to claims 9 and 10, taken in isolation or in any technically possible combination.

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 en coupe d'une enceinte acoustique selon l'invention,
  • la figure 2 est un détail de la figure 1 centré sur deux joints de suspension d'un haut-parleur de l'enceinte acoustique représentée sur la figure 1,
  • la figure 3 est un détail de la figure 2 centré sur une extrémité d'un des joints de suspension représenté sur les figures 1 et 2,
  • les figures 4 à 6 sont respectivement des vues, analogues à la figure 3, de joints de suspension constituant des variantes du joint représenté sur les figures 1 à 3, et
  • la figure 7 est une vue de détail d'une variante d'un des joints représentés sur la figure 2.
The invention will be better understood on reading the description which will follow, given solely by way of example and made with reference to the appended drawings, in which:
  • the figure 1 is a sectional view of an acoustic enclosure according to the invention,
  • the figure 2 is a detail of the figure 1 centered on two suspension joints of a loudspeaker of the loudspeaker shown in the figure 1 ,
  • the figure 3 is a detail of the figure 2 centered on one end of one of the suspension joints shown in figures 1 and 2 ,
  • the figures 4 to 6 are respectively views, analogous to the figure 3 , suspension joints constituting variants of the joint shown in the figures 1 to 3 , and
  • the figure 7 is a detail view of a variant of one of the seals shown on figure 2 .

En référence à la figure 1, on décrit une enceinte acoustique 1 selon l'invention.With reference to the figure 1 , there is described an acoustic enclosure 1 according to the invention.

L'enceinte acoustique 1 est par exemple adaptée pour être intégrée à l'habitacle (non représenté) d'un véhicule automobile (non représenté).The acoustic enclosure 1 is for example suitable for being integrated into the passenger compartment (not shown) of a motor vehicle (not shown).

L'enceinte acoustique 1 comprend un caisson 3, un haut-parleur 5 selon l'invention, et avantageusement d'autres haut-parleurs 7, 9, 11.The acoustic enclosure 1 comprises a box 3, a loudspeaker 5 according to the invention, and advantageously other loudspeakers 7, 9, 11.

Le caisson 3 a par exemple une forme générale sphérique, à l'exception, dans l'exemple représenté, d'une face 13 sensiblement plane entourant le haut-parleur 11.The box 3 has for example a generally spherical shape, with the exception, in the example shown, of a substantially planar face 13 surrounding the loudspeaker 11.

Le haut-parleur 7 est structurellement analogue au haut-parleur 5 et ne sera pas décrit en détail. Le haut-parleur 7 est avantageusement monté tête-bêche avec le haut-parleur 5 selon un axe D de ce dernier. Le haut-parleur 7 est par exemple un haut-parleur de grave, c'est-à-dire configuré pour émettre dans une bande passante s'étendant par exemple de 15 Hz à environ 500 Hz.Loudspeaker 7 is structurally analogous to loudspeaker 5 and will not be described in detail. The loudspeaker 7 is advantageously mounted head-to-tail with the loudspeaker 5 along an axis D of the latter. The loudspeaker 7 is for example a bass loudspeaker, that is to say configured to transmit in a bandwidth extending for example from 15 Hz to approximately 500 Hz.

Le haut-parleur 9 est par exemple un haut-parleur de médium et d'aigu, c'est-à-dire configuré par exemple pour émettre dans une bande passante s'étendant par exemple de 200 Hz à 25 kHz. Le haut-parleur 9 possède une grille de protection 15 avantageusement située dans la continuité du caisson 3. Le haut-parleur 9 est configuré pour émettre directement dans un volume intérieur (non représenté) de l'habitacle du véhicule automobile.The loudspeaker 9 is for example a midrange and treble loudspeaker, that is to say configured for example to transmit in a passband extending for example from 200 Hz to 25 kHz. The loudspeaker 9 has a protective grid 15 advantageously situated in the continuity of the box 3. The loudspeaker 9 is configured to transmit directly into an interior volume (not shown) of the passenger compartment of the motor vehicle.

Le haut-parleur 11 est par exemple également configuré pour émettre dans le médium et l'aigu, mais dans un ou des conduits (non représentés) définis par l'habitacle du véhicule automobile.The loudspeaker 11 is for example also configured to transmit in the midrange and the treble, but in one or more conduits (not shown) defined by the passenger compartment of the motor vehicle.

Comme visible sur la figure 1, le haut-parleur 5 comprend un châssis 17, un circuit magnétique 19 définissant au moins un entrefer 21, un ensemble 23 mobile par rapport au châssis en translation selon l'axe D du haut-parleur autour d'une position d'équilibre occupée lorsque le haut-parleur est au repos, et deux joints 25, 27 de suspension de l'ensemble.As visible on the figure 1 , the loudspeaker 5 comprises a frame 17, a magnetic circuit 19 defining at least one air gap 21, an assembly 23 movable relative to the frame in translation along the axis D of the loudspeaker around an occupied equilibrium position when the loudspeaker is at rest, and two joints 25, 27 for suspension of the assembly.

Dans l'exemple représenté, le châssis 17 est assez réduit. Le châssis 17 est solidaire mécaniquement du caisson 3.In the example shown, the frame 17 is quite small. The frame 17 is mechanically secured to the box 3.

L'ensemble 23 comprend une membrane 29 configurée pour émettre des ondes sonores, un porte-bobine 31 fixé sur la membrane, une bobine 33 fixée sur le porte-bobine et située dans l'entrefer 21, et un organe de liaison 35 également fixé sur la membrane.The assembly 23 comprises a membrane 29 configured to emit sound waves, a reel holder 31 fixed on the membrane, a reel 33 fixed on the reel holder and located in the air gap 21, and a connecting member 35 also fixed. on the membrane.

La membrane 29 est par exemple convexe, la convexité étant avantageusement tournée vers l'extérieur du haut-parleur 5. La membrane 29 est par exemple sphérique, à l'exception d'un bord périphérique 39.The membrane 29 is for example convex, the convexity being advantageously turned towards the outside of the loudspeaker 5. The membrane 29 is for example spherical, with the exception of a peripheral edge 39.

Le bord périphérique 39 est situé en vis-à-vis d'un bord 41 du caisson 3 définissant une ouverture en travers de laquelle la membrane 29 s'étend.The peripheral edge 39 is located opposite an edge 41 of the box 3 defining an opening through which the membrane 29 extends.

Le porte-bobine 31 et l'organe de liaison 35 ont par exemple une forme sensiblement cylindrique d'axe D.The spool holder 31 and the connecting member 35 have for example a substantially cylindrical shape of axis D.

Les joints 25, 27 sont structurellement analogues, aussi seul le joint 25 sera décrit en détail ci-après.Gaskets 25, 27 are structurally similar, so only gasket 25 will be described in detail hereinafter.

Le joint 25 forme une boucle élastique autour de l'ensemble 23.The seal 25 forms an elastic loop around the assembly 23.

En section perpendiculairement à la boucle, comme représenté sur la figure 2, le joint 25 comprend une première extrémité 39A fixée sur l'ensemble 23, une deuxième extrémité 41A fixée sur le châssis 17, et une partie principale 43 reliant la première extrémité et la deuxième extrémité et assurant une souplesse axiale du joint. Le joint 25 définit une gouttière 45 avantageusement située sous les bords 39, 41 de la membrane 29 et du caisson 3.In section perpendicular to the loop, as shown in figure 2 , the seal 25 comprises a first end 39A fixed to the assembly 23, a second end 41A fixed to the frame 17, and a main part 43 connecting the first end and the second end and ensuring axial flexibility of the seal. The seal 25 defines a gutter 45 advantageously located under the edges 39, 41 of the membrane 29 and of the box 3.

Dans l'exemple représenté, le joint 25 présente une section transversale en berceau dans la position d'équilibre.In the example shown, the seal 25 has a cradle cross section in the equilibrium position.

La première extrémité 39A et la deuxième extrémité 41A forment par exemple respectivement des rebords orientés sensiblement radialement et facilitant la fixation du joint 25.The first end 39A and the second end 41A for example respectively form flanges oriented substantially radially and facilitating the fixing of the gasket 25.

La deuxième extrémité 41A est avantageusement collée sur le châssis 17, par exemple par une face inférieure 47 dirigée du côté intérieur du haut-parleur 5.The second end 41A is advantageously glued to the frame 17, for example by a lower face 47 directed towards the interior side of the loudspeaker 5.

Dans la position de repos, la première extrémité 39A et la deuxième extrémité 41A sont par exemple situées axialement sensiblement au même niveau.In the rest position, the first end 39A and the second end 41A are for example located axially substantially at the same level.

La première extrémité 39A est par exemple collée sur une bague 49 solidaire mécaniquement de l'organe de liaison 35.The first end 39A is for example glued to a ring 49 mechanically secured to the connecting member 35.

La première extrémité 39A comprend une partie distale 51 par rapport à la partie principale 43, et une partie proximale 53 (figure 3). La partie distale 51 est radialement plus proche de l'axe D que la partie proximale 53.The first end 39A comprises a distal part 51 with respect to the main part 43, and a proximal part 53 ( figure 3 ). The distal part 51 is radially closer to the axis D than the proximal part 53.

La première extrémité 39A est par exemple collée sur une face interne 54 de la bague 49.The first end 39A is for example glued to an internal face 54 of the ring 49.

La partie distale 51 est plus compressible radialement que la partie proximale 53, et est comprimée radialement entre la partie distale et une butée 55 de la bague 49.The distal part 51 is more radially compressible than the proximal part 53, and is compressed radially between the distal part and a stop 55 of the ring 49.

Par « comprimée radialement », on entend ici que la partie distale 51 reçoit une pression dans le sens radial provenant à la fois de la partie proximale 53, et de la butée 55.By “radially compressed” is meant here that the distal part 51 receives pressure in the radial direction originating both from the proximal part 53 and from the stop 55.

La partie distale 51 présente un coefficient de compressibilité distal. La partie proximale 53 présente un coefficient de compressibilité proximal. Le coefficient de compressibilité distal est avantageusement au moins deux fois, de préférence dix fois, voire cent fois, supérieur au supérieur au coefficient de compressibilité proximal.The distal part 51 has a distal compressibility coefficient. The proximal portion 53 has a coefficient of proximal compressibility. The distal compressibility coefficient is advantageously at least twice, preferably ten times, or even a hundred times, greater than the greater than the proximal compressibility coefficient.

Par « coefficient de compressibilité », ou « compressibilité », on entend de manière classique la grandeur -(1/L).(dL/dF), où :

  • L représente l'extension (en mètre) dans le sens radial de la partie du joint considérée, et
  • F représente une force appliquée radialement sur la partie considérée par unité de longueur du joint considéré (en N/m), et
  • dL/dF est la dérivée de L par rapport à F.
By “compressibility coefficient”, or “compressibility”, is meant in a conventional manner the quantity - (1 / L). (DL / dF), where:
  • L represents the extension (in meters) in the radial direction of the part of the joint considered, and
  • F represents a force applied radially on the part considered per unit length of the joint considered (in N / m), and
  • dL / dF is the derivative of L with respect to F.

Le signe « - » permet d'avoir un résultat positif, car la dérivée dL/dF est négative.The sign "-" allows to have a positive result, because the derivative dL / dF is negative.

Cette grandeur représente la propension à se contracter sous l'effet de l'une force radiale. Ainsi, la partie distale 51 se contracte plus facilement que la partie proximale 53 dans le sens radial.This quantity represents the propensity to contract under the effect of a radial force. Thus, the distal portion 51 contracts more easily than the proximal portion 53 in the radial direction.

Dans l'exemple représenté sur la figure 3, la partie distale 51 est formée par une lèvre 57 faisant saillie radialement vers l'intérieur à partir de la partie proximale 53.In the example shown in figure 3 , the distal portion 51 is formed by a lip 57 projecting radially inwardly from the proximal portion 53.

La lèvre 57 est fléchie contre la face 55 et déviée par exemple vers l'intérieur du haut-parleur 5.The lip 57 is bent against the face 55 and deflected for example towards the inside of the loudspeaker 5.

La partie principale 43 du joint 27 n'est pas tournée vers l'intérieur du haut-parleur 5, mais vers la membrane 29.The main part 43 of the seal 27 is not turned towards the inside of the loudspeaker 5, but towards the membrane 29.

Un procédé d'installation des joints 25, 27 dans le haut-parleur 5 va maintenant être décrit.A method of installing the seals 25, 27 in the loudspeaker 5 will now be described.

La première extrémité 39A du joint 25 est enduite de colle. Le joint 25 est alors disposé autour de l'ensemble 23 de façon à former une boucle autour de l'axe D. La partie encollée de la première extrémité 39A est placée contre la face inférieure 54 de la bague 49. La lèvre 57 est placée en flexion contre la face 55 radialement externe de la bague 49.The first end 39A of the seal 25 is coated with glue. The seal 25 is then placed around the assembly 23 so as to form a loop around the axis D. The glued part of the first end 39A is placed against the lower face 54 of the ring 49. The lip 57 is placed. in bending against the radially outer face 55 of the ring 49.

La partie distale 51 de la première extrémité 39A est comprimée radialement contre la face 55, du fait que la boucle formée par le joint 25 est disposée autour de l'ensemble 23.The distal part 51 of the first end 39A is compressed radially against the face 55, due to the fact that the loop formed by the seal 25 is disposed around the assembly 23.

La plus grande compressibilité de la partie distale 51 de la première extrémité 39A du joint 25 permet un centrage du joint par rapport à l'ensemble 23 et évite que la première extrémité 39A soit étirée dans le sens de sa longueur autour de l'axe D.The greater compressibility of the distal portion 51 of the first end 39A of the seal 25 allows centering of the seal relative to the assembly 23 and prevents the first end 39A from being stretched lengthwise around the axis D .

La plus grande compressibilité de la partie distale 51 permet aussi de compenser le fait que le diamètre de la première extrémité autour de l'axe D soit un peu trop grand ou un peu trop faible du fait des tolérances de fabrication du joint 25.The greater compressibility of the distal part 51 also makes it possible to compensate for the fact that the diameter of the first end around the axis D is a little too large or a little too small due to the manufacturing tolerances of the seal 25.

La partie proximale 53 est fixée sur l'ensemble 23 par collage.The proximal part 53 is fixed to the assembly 23 by gluing.

La deuxième extrémité 41A (figure 2) est également collée sur le châssis 17.The second end 41A ( figure 2 ) is also glued to the frame 17.

Le joint 25 est alors en place et parfaitement centré.The seal 25 is then in place and perfectly centered.

On procède de même avec le joint 27.The same is done with seal 27.

Grâce aux caractéristiques décrites ci-dessus, les joints 25, 27 sont mis en place plus facilement et leur centrage est plus aisé, ce qui réduit les risques d'un mauvais placement des joints ou d'une tension de la première extrémité 39A dans le sens de sa longueur.Thanks to the characteristics described above, the seals 25, 27 are put in place more easily and their centering is easier, which reduces the risks of improper placement of the seals or of a tension of the first end 39A in the sense of its length.

La qualité sonore et la facilité de montage du haut-parleur 5 s'en trouve améliorées.The sound quality and the ease of assembly of the loudspeaker 5 are thereby improved.

En référence à la figure 4, on décrit un joint 125 constituant une première variante du joint 25 représenté sur les figures 2 et 3. Les variantes s'appliquent avantageusement également au joint 27.With reference to the figure 4 , there is described a seal 125 constituting a first variant of the seal 25 shown in figures 2 and 3 . The variants advantageously also apply to the seal 27.

Le joint 125 est analogue au joint 25. Les éléments similaires ne seront pas décrits à nouveau. Seules les différences seront décrites en détail ci-après.The seal 125 is analogous to the seal 25. Similar elements will not be described again. Only the differences will be described in detail below.

Dans le joint 125, la partie distale 51 présente une épaisseur distale E1 selon l'axe D. La partie proximale 53 présente une épaisseur proximale E2. L'épaisseur proximale E2 est strictement supérieure à l'épaisseur distale E1.In the seal 125, the distal part 51 has a distal thickness E1 along the axis D. The proximal part 53 has a proximal thickness E2. The proximal thickness E2 is strictly greater than the distal thickness E1.

Ceci assure que la partie distale 51 ait une compressibilité dans le sens radial supérieure à la compressibilité de la partie proximale 53.This ensures that the distal portion 51 has a compressibility in the radial direction greater than the compressibility of the proximal portion 53.

De préférence l'épaisseur proximale E2 est 3 fois, de préférence 10 fois, supérieure à l'épaisseur distale E1.Preferably, the proximal thickness E2 is 3 times, preferably 10 times, greater than the distal thickness E1.

Le joint 125 s'installe de la même manière que le joint 25.Seal 125 is installed in the same way as seal 25.

En référence à la figure 5, on décrit un joint 225 constituant une deuxième variante du joint 25 représenté sur les figures 2 et 3. Le joint 225 est analogue au joint 25. Les éléments similaires ne seront pas décrits à nouveau. Seules les différences seront décrites en détail ci-après.With reference to the figure 5 , there is described a seal 225 constituting a second variant of the seal 25 shown in figures 2 and 3 . Seal 225 is analogous to seal 25. Similar elements will not be described again. Only the differences will be described in detail below.

Dans le joint 225, la première extrémité 39A comprend une partie distale 251 distincte de la partie proximale 53. Dit autrement, le joint 225 est en deux morceaux.In seal 225, first end 39A includes a distal portion 251 separate from proximal portion 53. Stated otherwise, seal 225 is in two pieces.

La partie distale 251 est adaptée pour être enlevée une fois que le joint 225 a été mis en place et que le centrage par rapport à l'ensemble 23 a été effectué.The distal portion 251 is adapted to be removed once the seal 225 has been placed and the centering relative to the assembly 23 has been effected.

Pour installer le joint 225, la partie proximale 53 est enduite de colle et placée contre la bague 49. Une fois le centrage effectué, on retire la partie distale 251, qui ne reste pas dans le haut-parleur 5.To install the seal 225, the proximal part 53 is coated with glue and placed against the ring 49. Once the centering has been carried out, the distal part 251 is removed, which does not remain in the loudspeaker 5.

En référence à la figure 6, on décrit un joint 325 constituant une variante du joint 225 représentée sur la figure 5. Le joint 325 est analogue au joint 225. Dans le joint 325, la partie distale 51 de la première extrémité 39A ne constitue pas un élément distinct de la partie proximale 53, mais est liée à la partie proximale 53 par une liaison frangible 354.With reference to the figure 6 , there is described a seal 325 constituting a variant of the seal 225 shown in figure 5 . The seal 325 is similar to the seal 225. In the seal 325, the distal portion 51 of the first end 39A does not constitute a separate element from the proximal portion 53, but is linked to the proximal portion 53 by a frangible connection 354.

Ainsi, une fois que le joint 325 est mis en place, la partie distale 51 est séparée de la partie proximale 53 et retirée du haut-parleur 5.Thus, once the seal 325 is in place, the distal portion 51 is separated from the proximal portion 53 and removed from the speaker 5.

Dans toutes les variantes décrites ci-dessus, la partie proximale de la première extrémité 39A est par exemple réalisée dans un matériau différent de celui de la partie distale. Par exemple la partie proximale est réalisée en SB (styrène-butadiène) de dureté 60 Shore A, tandis que la partie distale est réalisée en EPDM (éthylène-propylène-diène monomère) alvéolaire.In all the variants described above, the proximal part of the first end 39A is for example made from a material different from that of the distal part. For example, the proximal part is made of SB (styrene-butadiene) with a hardness of 60 Shore A, while the distal part is made of cellular EPDM (ethylene-propylene-diene).

En référence à la figure 7, on décrit une variante du joint 25 dans laquelle la deuxième extrémité 41A comprend aussi une partie distale 51, et une partie proximale 53 moins compressible radialement que la partie distale. Dans l'exemple représenté, ceci est obtenu grâce à une lèvre 357 analogue à la lèvre 57 représentée sur la figure 3.With reference to the figure 7 , a variant of the seal 25 is described in which the second end 41A also comprises a distal part 51, and a proximal part 53 which is less compressible radially than the distal part. In the example shown, this is obtained by virtue of a lip 357 similar to the lip 57 shown in figure 3 .

La partie distale 51 de la deuxième extrémité 41A est radialement plus éloignée de l'axe D que la partie proximale 53.The distal part 51 of the second end 41A is radially further from the axis D than the proximal part 53.

Selon d'autres variantes, la différence de compressibilité est obtenue de différentes manières comme expliqué ci-dessus pour la première extrémité 39A.According to other variants, the difference in compressibility is obtained in different ways as explained above for the first end 39A.

Dans toutes les variantes énumérées ci-dessus, la plus grande compressibilité radiale de la partie distale de la première extrémité 39A et/ou de la deuxième extrémité 41A est assurée respectivement par une lèvre, une épaisseur axiale plus faible, et/ou un matériau différent, ces différentes possibilités étant éventuellement combinées.In all the variants listed above, the greatest radial compressibility of the distal part of the first end 39A and / or of the second end 41A is ensured respectively by a lip, a smaller axial thickness, and / or a different material. , these different possibilities possibly being combined.

Toutes ces variantes permettent une mise en place et un centrage plus faciles des joints, ce qui réduit les risques d'un mauvais placement des joints ou d'une tension de la première extrémité ou de la deuxième extrémité dans le sens de leur longueur.All of these variations allow easier placement and centering of the seals, reducing the risk of improper placement of the seals or of stressing the first end or second end lengthwise.

Claims (10)

  1. Electrodynamic loudspeaker (5), comprising:
    - a frame (17),
    - an assembly (23) which is movable in translation relative to the frame (17) along an axis of the loudspeaker (5) around an equilibrium position occupied when the loudspeaker (5) is at rest, the assembly (23) comprising at least one membrane (29) designed to emit sound waves, and
    - at least one suspension joint (25; 125) for the assembly, the joint (25; 125) forming a loop around the assembly (23) and comprising:
    - a first end (39A) fixed to the assembly (23),
    - a second end (41A) fixed to the frame (17), and
    - a main part (43) which connects the first end (39A) and the second end (41A) and ensures axial flexibility of the joint (25; 125),
    characterised in that the first end (39A) or the second end (41A) comprises a distal part (51) with respect to the main part (43), and a proximal part (53), the distal part (51) being more radially compressible than the proximal part (53) and being radially compressed between the proximal part (53) and a stop (55) of the assembly (23) or of the frame (17).
  2. Loudspeaker (5) according to claim 1, wherein, in any radial direction:
    - the distal part (51) has a compressibility coefficient,
    - the proximal part (53) has a compressibility coefficient, and
    - the compressibility coefficient of the distal part (51) is at least twice, preferably ten times, even a hundred times, greater than the compressibility coefficient of the proximal part (53).
  3. Loudspeaker (5) according to claim 1 or 2, wherein the joint (25; 125) has a cradle cross section in the equilibrium position.
  4. Loudspeaker (5) according to any of claims 1 to 3, wherein the distal part (51) and the proximal part (53) are made of different materials.
  5. Loudspeaker (5) according to any of claims 1 to 4, wherein the distal part (51) comprises a lip (57; 357), the lip (57; 357) projecting radially from the proximal part (53) towards the interior of the loudspeaker and flexing against said stop (55).
  6. Loudspeaker (5) according to any of claims 1 to 4, wherein:
    - the distal part (51) has a thickness along the axis,
    - the proximal part (53) has a thickness along the axis, and
    - the thickness of the proximal part (53) is strictly greater than the thickness of the distal part (51).
  7. Acoustic enclosure (1) comprising at least one loudspeaker (5) according to any of claims 1 to 6.
  8. Method for installing at least one suspension joint (25; 125; 225; 325) in an electrodynamic loudspeaker (5), the loudspeaker (5) comprising, at least once mounted, a frame (17), a coil (33), and an assembly (23) which is movable in translation relative to the frame (17) along an axis of the loudspeaker (5) around an equilibrium position occupied when the loudspeaker (5) is at rest, the assembly (23) comprising at least one membrane (29) designed to emit sound waves, the method comprising the following steps:
    - providing the joint (25; 125),
    - positioning the joint (25; 125) around the movable assembly (23) in order to form a tight loop, the joint (25; 125) comprising a first end (39A) located radially on the side of the assembly (23), a second end (41A) located radially on the side of the frame (17), and a main part (43) which connects the first end (39A) and the second end (41A) and is designed to ensure axial flexibility of the joint (25; 125), the first end (39A) and/or the second end (41A) comprising a proximal part (53) relative to the main part (43), and a distal part (51) which is more radially compressible than the proximal part (53),
    - radially compressing the distal part (51) between the proximal part (53) and a stop (55) of the assembly (23) or of the frame (17),
    - centring the joint (25; 125) relative to the coil (33) or relative to the frame (17), and
    - fixing the first end (39A) to the assembly (23), and fixing the second end (41A) to the frame (17).
  9. Method according to claim 8, wherein the distal part (51) is mechanically secured to the proximal part (53) and remains in the loudspeaker (5) after the fixing step.
  10. Method according to claim 8, wherein the distal part (51; 251) is mechanically separate from the proximal part (53) or connected to the proximal part (53) by a breakable connection, the method further comprising removing the distal part (51; 251) after the first end (39A) and/or the second end (41A) has been fixed, once the centring has been carried out, the removed distal part (51; 251) not being intended to remain in the loudspeaker (5).
EP18726191.2A 2017-05-30 2018-05-30 Electrodynamic loudspeaker having a centred suspension joint Active EP3632136B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1754732A FR3067202B1 (en) 2017-05-30 2017-05-30 ELECTRODYNAMIC SPEAKER WITH CENTER SUSPENSION JOINT
PCT/EP2018/064273 WO2018220061A1 (en) 2017-05-30 2018-05-30 Electrodynamic loudspeaker having a centred suspension joint

Publications (2)

Publication Number Publication Date
EP3632136A1 EP3632136A1 (en) 2020-04-08
EP3632136B1 true EP3632136B1 (en) 2021-05-19

Family

ID=60080885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18726191.2A Active EP3632136B1 (en) 2017-05-30 2018-05-30 Electrodynamic loudspeaker having a centred suspension joint

Country Status (4)

Country Link
EP (1) EP3632136B1 (en)
CN (1) CN110741656B (en)
FR (1) FR3067202B1 (en)
WO (1) WO2018220061A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024155285A1 (en) * 2023-01-20 2024-07-25 Google Llc Electroacoustic transducer with multi-functional seal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100303276A1 (en) * 2009-05-29 2010-12-02 Rockford Corporation Loudspeaker surround mount
JP5471435B2 (en) * 2009-12-28 2014-04-16 パナソニック株式会社 Speaker diaphragm, speaker using the same, and portable terminal device
WO2013098236A1 (en) * 2011-12-29 2013-07-04 Gettop Europe R&D ApS Suspension member with integrated sealing member
CN105721992B (en) * 2016-01-21 2019-05-14 深圳市万有云科技有限公司 A kind of adaptive Q value loudspeaker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN110741656B (en) 2021-11-09
FR3067202B1 (en) 2020-03-13
WO2018220061A1 (en) 2018-12-06
EP3632136A1 (en) 2020-04-08
FR3067202A1 (en) 2018-12-07
CN110741656A (en) 2020-01-31

Similar Documents

Publication Publication Date Title
EP2753851B1 (en) Pinion vibration damping using viscoelastic patch
FR2725259A1 (en) PRESSURE ACTIVATED SEALING RING
EP2895773B1 (en) Gasket, in particular for a pressurised liquid
EP1564455A1 (en) Sealing arrangement for the high-pressure turbine of a turbomachine
FR2933378A1 (en) Antenna mounting method for aircraft, involves inserting conducting bushing in bore before positioning screw, where bushing is electrically connected to mass of aircraft and receives screw so as to be in electrical contact with bolt
FR2746573A1 (en) ACOUSTIC ELECTRODYNAMIC CONVERTER
EP0962741B1 (en) Device for provisionally connecting and pyrotechnically separating two non-metallic units
EP3632136B1 (en) Electrodynamic loudspeaker having a centred suspension joint
WO2011124814A1 (en) Vehicle comprising a leaf-spring suspension made of composite material, and corresponding leaf spring
EP0660006B1 (en) Resonating dynamic damping element and its assembly
FR2790903A1 (en) LOUD SPEAKER
FR2524100A1 (en) WATER DEFLECTOR FOR LAMINOIL OIL FILM BEARING BEARING
EP3078211B1 (en) Compact electrodynamic loudspeaker having a convex diaphragm
CA2934063A1 (en) Guide arm for elements having an elongated shape, in particular for a turbomachine
FR2598044A1 (en) Device for decreasing the noise emitted by electric machines, especially by AC current generators of motor vehicles
EP0187554A1 (en) Gasket
WO2018220054A1 (en) Acoustic chamber with reduced hiss
FR2698425A1 (en) Brake disc for rail traction unit - provided with vibration attenuator when brakes are applied.
FR2962603A1 (en) Electric cable for use in connection device in driving compartment of vehicle e.g. boat, has sleeve that is rigid and includes thickness less than that of insulating sheath, where conducting core is enclosed by insulating sheath
FR3067203A1 (en) ELECTRODYNAMIC SPEAKER HAVING AT LEAST TWO JOINTS DEFINING INTERMEDIATE HOUSING FILLED WITH AIR
FR2557667A1 (en) Pipe with a sleeve.
EP3650712B1 (en) Device for assembling two stacked supports providing a link between the supports with an ability for relative movement and damping
EP4204205B1 (en) Manufacturing method for a reinforced thermoplastic pipe comprising a bent portion
FR2668016A1 (en) Electrodynamic loudspeaker and corresponding moving assembly
WO2016110616A1 (en) Elastic wheel, particularly intended to be fitted to an urban rail vehicle

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191129

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20201215

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018017332

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1395163

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1395163

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210519

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210819

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210820

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210919

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210819

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210920

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210530

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602018017332

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

26N No opposition filed

Effective date: 20220222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210919

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20180530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240523

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240513

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240411

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519