EP4133747B1 - Embout, ecouteur, et procede de fabrication d'embouts pour ecouteurs - Google Patents

Embout, ecouteur, et procede de fabrication d'embouts pour ecouteurs

Info

Publication number
EP4133747B1
EP4133747B1 EP20734865.7A EP20734865A EP4133747B1 EP 4133747 B1 EP4133747 B1 EP 4133747B1 EP 20734865 A EP20734865 A EP 20734865A EP 4133747 B1 EP4133747 B1 EP 4133747B1
Authority
EP
European Patent Office
Prior art keywords
eartip
beams
anisotropic
ear canal
stiffness
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
EP20734865.7A
Other languages
German (de)
English (en)
Other versions
EP4133747A1 (fr
Inventor
Miikka Tikander
Petri Jarske
Jyri PAKARINEN
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP4133747A1 publication Critical patent/EP4133747A1/fr
Application granted granted Critical
Publication of EP4133747B1 publication Critical patent/EP4133747B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/105—Earpiece supports, e.g. ear hooks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/652—Ear tips; Ear moulds

Definitions

  • the present disclosure relates generally to an eartip for an earphone, to an earphone, and to a method of manufacturing an eartip for an earphone.
  • the eartip may comprise anisotropic stiffness elements such as anisotropic microstructures, which may provide a location-specific stiffness and/or a direction-specific stiffness to the eartip body.
  • insert-type headphones typically comprise a body part and a soft eartip part.
  • the eartip part is often designed to be pushed inside a user's ear canal, for example, in order to block it from outside sounds, and to further allow the sounds generated by the headphone entering the user's ear canal.
  • a conventional eartip for earphones is based on isotropic homogeneous materials (typically silicone). Further, the homogeneous materials of the eartip is selected such that the overall stiffness of the eartip to be compromised. For example, the eartip should not be too stiff to exert too much pressure to the user's ear canal, but the eartip should also not be too soft to still enable insertion into the user's ear canal.
  • Document EP 2 618 594 A2 discloses an ear tip for an ear phone, comprising: a cylindrical hollow shaft having a sound conduit through which audio signals are transferred into a user's ear; an external sheet extending from an end portion of the hollow shaft and enclosing the hollow shaft such that a gap space is provided between the hollow shaft and the external sheet; and a reinforce member protruded from the external sheet toward the hollow shaft in the gap space and reinforcing a strength of the external sheet to thereby resist against an axial external force applied along the hollow shaft.
  • Document US 2018/071966 A1 is disclosing an eartip, comprising: an upper bevel portion having an upper hollow-cored guiding tube and an upper bevel surrounding a top end of the upper hollow-cored guiding tube; and a lower bevel portion having a lower hollow-cored guiding tube and a lower bevel surrounding a top end of the lower hollow-cored guiding tube, wherein the top end of the lower hollow-cored guiding tube extends to form a buffer portion for connecting and communicating with the upper hollow-cored guiding tube, wherein a diameter of a bottom rim of the upper bevel is less than a diameter of a bottom rim of the lower bevel, wherein the lower bevel portion is of a rigidity slightly higher than the upper bevel portion.
  • embodiments of the present disclosure aim to improve a conventional eartip for earphones.
  • An objective is to provide an eartip that provides a better sealing of the user's ear canal. Further, the eartip should provide an improved wearing comfort to the user.
  • the disclosed eartip should overcome shortcomings of the conventional eartip that are based on isotropic materials.
  • embodiments of the invention make it possible to control the stiffness of the eartip in different locations and directions, and may thus maximize a wearing comfort for the user, while ensuring a stable fit and a good sound quality, and/or an efficient acoustic sealing.
  • a first aspect of the present disclosure provides an eartip for an earphone, the eartip comprising a deformable eartip body configured to be at least partially inserted into an ear canal, and one or more anisotropic stiffness elements arranged in or on the eartip body, wherein the one or more anisotropic stiffness elements are configured to provide a location-specific stiffness to the eartip body.
  • the one or more anisotropic stiffness elements comprise a plurality of beams arranged inside the eartip body, wherein the one or more anisotropic stiffness elements further comprise a plurality of bonding structures interconnecting the plurality of beams.
  • the eartip may be an eartip for an insert-type earphone.
  • the deformable body may enable the eartip (e.g., the deformable eartip body of the eartip) to be at least partially inserted (e.g., positioned) within the ear canal of a user.
  • the one or more anisotropic stiffness elements may be based on anisotropic microstructures, and may be arranged such that a location-specific stiffness may be provided to the eartip body.
  • the one or more anisotropic stiffness elements may be used to control the stiffness and other material parameters in different locations and directions in the eartip.
  • the eartip may provide a maximized wearing comfort to the user, while ensuring a stable fit and good sound quality.
  • the stiffness of the eartip may vary locally, allowing more pressure to be exerted to areas that are not that sensitive to force (such as the tragus of the ear), and less pressure to areas of higher sensitivity. Hence, it may be possible to increase both the wearing comfort and the secure fit (preventing the earphone to drop from the ear of the user) of the eartip.
  • the plurality of beams may be based on tubes, e.g., may each be a tube.
  • each beam e.g., each tube
  • the one or more anisotropic stiffness elements are further configured to provide a direction-specific stiffness to the eartip body, wherein the stiffness of the eartip body is highest along an ear canal insertion direction.
  • providing direction-specific stiffness to the eartip body may enable the eartip to be more easily inserted in the ear canal of the user, more comfortable to wear, and it may be easily manufactured. Furthermore, due to the direction-specific stiffness of the eartip body, the eartip may be stiffer during insertion (preventing folding of the eartip body, and thus facilitating insertion), but more flexible during wearing (increasing comfort and providing better sealing).
  • the one or more anisotropic stiffness elements are configured to provide a stiffer characteristic to the eartip body along a first axis of the eartip, wherein, in particular, the first axis is along the ear canal insertion direction.
  • the one or more anisotropic stiffness elements are further configured to provide a less stiff characteristic to the eartip body along a second axis of the eartip, wherein in particular the second axis is oblique to the ear canal insertion direction.
  • each of the beams has a higher stiffness along the beam extension direction, and has a lower bending stiffness oblique to the beam extension direction.
  • the plurality of bonding structures provide a support body to the interconnected plurality of beams, thereby forming a mesh structure.
  • the one or more anisotropic stiffness elements further comprise a plurality of rings arranged next to each other, and positioned at an end of the eartip opposite to the end of the eartip that is configured to be inserted into the ear canal.
  • a second aspect of the disclosure provides an earphone comprising at least one eartip according to the first aspect or one of the implementation form of the first aspect.
  • the earphone may comprise at least one eartip, for example, an eartip or a pair of eartip. It may further include a circuitry.
  • the earphone may further comprise a circuitry comprising electronics such as transducer elements that may be operative to provide acoustic sound.
  • the circuitry of the earphone may comprise hardware and software.
  • the hardware may comprise analog or digital circuitry, or both analog and digital circuitry.
  • the circuitry comprises one or more processors and a non-volatile memory connected to the one or more processors.
  • the non-volatile memory may carry executable program code which, when executed by the one or more processors, causes the device to perform the operations or methods described herein.
  • the at least one eartip of the earphone may be operative to deform in order to fit inside a user's ear canal and provide an acoustic sealing.
  • the earphone of the second aspect achieves the advantages and effects described for the eartip of the first aspect.
  • a third aspect of the disclosure provides a method of manufacturing an eartip for an earphone, the method comprising forming a deformable eartip body for being at least partially insertable into an ear canal, and arranging one or more anisotropic stiffness elements in or on the eartip body, such that the one or more anisotropic stiffness elements provide a location-specific stiffness to the eartip body.
  • the one or more anisotropic stiffness elements comprise a plurality of beams arranged inside the eartip body, wherein the one or more anisotropic stiffness elements further comprise a plurality of bonding structures interconnecting the plurality of beams.
  • the manufacturing method of the third aspect is executed for manufacturing the eartip according to the first aspect or one of the implementation form of the first aspect.
  • FIG. 1 depicts a schematic view of an eartip 110, 120 for an earphone 100, 101, according to an embodiment of the disclosure.
  • a pair of earphones 100, 101 is shown, including a first earphone 100 comprising an eartip 110, for instance, for use in a user's left ear, and a second earphone 101 comprising an eartip 120, for instance, for use with a user's right ear.
  • the first earphone 100 and the second earphone 101 may be similar or identical, and may have similar or identical functions as described in this disclosure.
  • the eartip 110 and the eartip 120 may be similar or identical, and may have similar or identical functions as described in this disclosure.
  • the eartip 110, 120 comprises a deformable eartip body 111, 121 configured to be at least partially inserted into an ear canal.
  • the eartip 110, 120 further comprises one or more anisotropic stiffness elements 112, 113, 122, 123 arranged in or on the eartip body 111, 121, wherein the one or more anisotropic stiffness elements 112, 113, 122, 123 are configured to provide a location-specific stiffness to the eartip body 111, 121.
  • the eartip 110 comprises the anisotropic stiffness elements 112, 113 arranged in or on the eartip body 111 of the eartip 110.
  • the eartip 120 comprises the anisotropic stiffness elements 122, 123 arranged in or on the eartip body 121 of the eartip 120.
  • anisotropic stiffness elements 112, 113, 122, 123 are configured to provide a location-specific stiffness to each of the respective eartip bodies 111, 121.
  • the anisotropic stiffness elements 112, 113 and 122, 123 may be, respectively, arranged such that the stiffness of the eartips 110 and 120 varies locally. Furthermore, this may allow pressure to be exerted more to areas that are not that sensitive to force (such as the tragus of the ear), and less to areas of higher sensitivity. Hence, it may be possible to increase both the wearing comfort and the secure fit (preventing the earphone 100, 101 to drop from the ear of the user) of each eartip 110, 120.
  • a user may wear the first earphone 100 and the second earphone 101 by at least partially inserting the respective deformable eartip bodies 111, 121 of the eartips 110, 120 into the respective ear canals. Furthermore, by providing the location-specific stiffness by the anisotropic stiffness elements 112, 113 and 122, 123, respectively, the deformable eartip bodies 111 and 121 may deform to fit within the unique shape of the particular user's ear canal.
  • the first earphone 100 and/or the second earphone 101 may further comprise a processing circuitry (not shown in FIG. 1 ) configured to perform, conduct or initiate the various operations of the device 100 described herein.
  • the processing circuitry may comprise hardware and software.
  • the hardware may comprise analog circuitry or digital circuitry, or both analog and digital circuitry.
  • the digital circuitry may comprise components such as application-specific integrated circuits (ASICs), field-programmable arrays (FPGAs), digital signal processors (DSPs), or multi-purpose processors.
  • the processing circuitry comprises one or more processors and a non-transitory memory connected to the one or more processors.
  • the non-transitory memory may carry executable program code which, when executed by the one or more processors, causes the first earphone 100 and/or the second earphone 101 to perform, conduct or initiate the operations or methods described herein.
  • FIG. 2A and FIG. 2B depict diagrams 200A and 200B illustrating anisotropic stiffness elements (like 112, 113 and 122, 123 in FIG. 1 ) that are based on a plurality of beams 201 for arrangement inside the eartip body (diagram 200A of FIG. 2A ), and based on a plurality of rings 203 provided as support-structure for the eartip (diagram 200B of FIG. 2B ).
  • the anisotropic stiffness elements 112, 113 and 122, 123 are comprising a plurality of beams 201.
  • eight beams 201 are illustrated that may provide a stiffer characteristic to the eartip body along the ear canal insertion direction.
  • each of the beams 201 may have a higher stiffness along the beam extension direction, and may have a lower bending stiffness (e.g., an elastic characteristic) oblique to the beam extension direction.
  • a plurality of bonding structures 202 are provided for interconnecting the plurality of beams 201.
  • the anisotropic stiffness elements 112, 113 and 122, 123 may comprise thicker elements (e.g., the beams 201) in the direction of ear canal insertion, preventing excessive bending or folding of the respective eartip 110, 120.
  • Adjoining the thicker elements may be thinner elements like supporting structures, e.g., a mesh 202 as shown in light gray in FIG. 2 , which may hold the beams 201 together, but at the same time allow elasticity in the direction orthogonal to the beams 201 (the thicker elements).
  • the eartip 110, 120 may be flexible towards the ear canal walls of the user, preventing discomforting pressure, but may be stiff towards the ear canal itself, and thus may prevent excessive bending when inserting the eartip 110, 120.
  • the thin support structures may not be beam-like as shown, but may also be or comprise a membrane-like structure that can be used as well for non-leaky operation.
  • such anisotropic microstructures may be created by 3D printing using, e.g., one or more mesh structures 202 with varying element thickness, or with varying materials.
  • the beams 201 may be based on eartip tubes, which may be stiffer in the insertion direction, but more flexible towards the ear canal walls.
  • the anisotropic stiffness elements 112, 113 and 122, 123 may be based on a plurality of rings 203.
  • the plurality of rings 203 may be arranged next to each other, and may be positioned at an end of the eartip 110, 120 opposite to the end of the eartip 110, 120 that is configured to be inserted into the ear canal.
  • each ring 203 may be based on a tube, which has a radial angle that can be varied.
  • the plurality of rings 203 may allow the radial direction of the eartip body 111, 121 to be varied.
  • two possible variations are indicated with dashed lines in this respect.
  • FIG. 3A and FIG. 3B depict diagrams illustrating a stiffer characteristic of the eartip body 111, 121 along a first axis of the eartip ( FIG. 3A ), and a less stiff characteristic of the eartip body 111, 121 along a second axis of the eartip ( FIG. 3B ).
  • the plurality of beams 201 may have a higher stiffness along the first direction of the beams 201 (indicated with arrows 301 and 302). Such a characteristic enables the tips of the beams 201 to maintain substantially their shape. Thus, they may be easily inserted into the ear canals. Further, as can be taken from diagram 300B of FIG. 3B , the plurality of beams 201 may have a lower bending stiffness in the second directions (indicated with arrows 303 and 304). Such a characteristic enables the beams 210 to easily conform to the ear canal, and to have a low restoring pressure. This improves the sealing of the ear canal.
  • FIG. 4 depicts a schematic view of anisotropic stiffness elements (e.g., 112, 113 and 122, 123 in FIG. 1 ) comprising a plurality of beams 201 and a plurality of rings 203.
  • anisotropic stiffness elements e.g., 112, 113 and 122, 123 in FIG. 1
  • the anisotropic stiffness elements 112, 113 and 122, 123 may be based on the plurality of beams 201, and the plurality of rings 203, and the plurality of bonding structures 202 (e.g., the mesh structure 202).
  • Combining the plurality of beams 201 and the plurality of rings 203 may result in an eartip 100, 101, which may exert less pressure on the ear canal opening (as the structure shown in diagram 200B of FIG. 2B complies better with the natural angle variation of human's ear canal directions), and which may further be easy to insert, but not exert too much pressure on the ear canal walls.
  • the structure shown in diagram 200A of FIG. 2A is stiffer towards the ear canal, but more flexible towards the walls.
  • the anisotropic stiffness elements 12, 113 and 122, 123 may comprise the plurality of beams 201 that are based on silicone, the plurality of rings 203 that are based on silicone, and the plurality of bonding structures 202 (e.g., mesh). Further, the ring-support design may be used to prevent the eartip tube from being squeezed, for example, when being inserted in a narrow ear canal.
  • FIG. 5 depicts a schematic view of anisotropic stiffness elements of FIG. 4 implemented with metal wires and another support material.
  • the anisotropic stiffness elements 12, 113 and 122, 123 may comprise the plurality of beams 201 that are based on silicone, the plurality of rings 203 that are based on silicone, and the plurality of bonding structures 202 that are based on metal wires 501. Combining such structures for forming the anisotropic stiffness elements 12, 113 and 122, 123 may result in an eartip design, which can bend in the direction of the user's ear canal (e.g., due to the plurality of rings 203 (not shown in FIG. 5 )) while being easy to insert but not exerting too much pressure on the ear canal wall.
  • This combination is an example of not only anisotropic eartip structure, but it also has different characteristics in different locations (for example, it may be easy to bend in the headset body end, but not other locations).
  • the plurality of beams 201 are interconnected with bounding structures that are exemplary based on metal wires 501, and an additional soft material 502 (shown in dark grey) that is provided over the structure of metal wires 501.
  • microstructures could be manufactured by molding softer material 502 (e.g., silicone) over a harder supporting material (e.g., a mesh of metal wires 501), for example, a structure as shown in diagram 500 of FIG. 5 .
  • softer material 502 e.g., silicone
  • a harder supporting material e.g., a mesh of metal wires 501
  • FIG. 6 shows a method 600 of manufacturing an eartip 110, 120 for an earphone 100, 101, according to an embodiment of the disclosure.
  • the method 600 comprises a step S601 of forming a deformable eartip body 111, 121 for being at least partially insertable into an ear canal.
  • the method 600 further comprises a step S602 of arranging one or more anisotropic stiffness elements 112, 113, 122, 123 in or on the eartip body 111, 121, such that the one or more anisotropic stiffness elements 112, 113, 122, 123 provide a location-specific stiffness to the eartip body 111, 121.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Headphones And Earphones (AREA)

Claims (11)

  1. Embout (110, 120) pour un écouteur (100, 101), l'embout (110, 120) comprenant :
    un corps d'embout (111, 121) déformable configuré pour être au moins partiellement inséré dans un conduit auditif ; et
    un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) disposés dans ou sur le corps d'embout (111, 121),
    dans lequel les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) sont configurés pour fournir une rigidité spécifique à l'emplacement au corps d'embout (111, 121) ;
    caractérisé en ce que
    les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) comprennent une pluralité de faisceaux (201) disposés à l'intérieur du corps d'embout (111, 121) ; et
    dans lequel les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) comprennent également une pluralité de structures de liaison (202) interconnectant la pluralité de faisceaux (201).
  2. Embout (110, 120) selon la revendication 1, dans lequel :
    les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) sont également configurés pour fournir une rigidité spécifique à la direction au corps d'embout (111, 121), dans lequel la rigidité du corps d'embout (111, 121) est la plus élevée le long d'une direction d'insertion dans le conduit auditif.
  3. Embout (110, 120) selon la revendication 1 ou 2, dans lequel :
    les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) sont configurés pour fournir une caractéristique plus rigide au corps d'embout (111, 121) le long d'un premier axe de l'embout (110, 120), dans lequel en particulier le premier axe est situé le long de la direction d'insertion dans le conduit auditif.
  4. Embout (110, 120) selon l'une des revendications 1 à 3, dans lequel :
    les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) sont également configurés pour fournir une caractéristique moins rigide au corps d'embout (111, 121) le long d'un second axe de l'embout (110, 120), dans lequel en particulier le second axe est en biais par rapport à la direction d'insertion dans le conduit auditif.
  5. Embout (110, 120) selon la revendication 1, dans lequel :
    chacun des faisceaux présente une rigidité plus élevée le long de la direction d'extension du faisceau et présente une rigidité de flexion plus faible en biais par rapport à la direction d'extension du faisceau.
  6. Embout (110, 120) selon la revendication 1 ou 5, dans lequel :
    la pluralité de structures de liaison (202) fournissent un corps de support à la pluralité de faisceaux (201) interconnectés, formant ainsi une structure en maille.
  7. Embout (110, 120) selon l'une des revendications 1 à 6, dans lequel :
    les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) comprennent également une pluralité d'anneaux (203) disposés les uns à côté des autres, et positionnés au niveau d'une extrémité de l'embout (110, 120) à l'opposé de l'extrémité de l'embout (110, 120) qui est configurée pour être insérée dans le conduit auditif.
  8. Embout (110, 120) selon la revendication 7, dans lequel :
    la pluralité de faisceaux (201) comprend du silicone ; et/ou
    la pluralité d'anneaux (203) comprend du silicone ; et/ou
    la pluralité de structures de liaison (202) comprend des fils métalliques.
  9. Écouteur (100, 101) comprenant :
    au moins un embout (110, 120) selon l'une des revendications 1 à 8.
  10. Procédé (600) de fabrication d'un embout (110, 120) pour un écouteur (100, 101), le procédé (600) comprenant :
    la formation (S601) d'un corps d'embout (111, 121) déformable destiné à pouvoir être au moins partiellement inséré dans un conduit auditif ; et
    la disposition (S602) d'un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) dans ou sur le corps d'embout (111, 121), de telle sorte que les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) fournissent une rigidité spécifique à l'emplacement au corps d'embout (111, 121) ;
    caractérisé en ce que
    les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) comprennent une pluralité de faisceaux (201) disposés à l'intérieur du corps d'embout (111, 121) ; et
    dans lequel les un ou plusieurs éléments de rigidité anisotrope (112, 113, 122, 123) comprennent également une pluralité de structures de liaison (202) interconnectant la pluralité de faisceaux (201).
  11. Procédé de fabrication selon la revendication 10, qui est exécuté pour fabriquer l'embout selon l'une des revendications 2 à 8.
EP20734865.7A 2020-06-18 2020-06-18 Embout, ecouteur, et procede de fabrication d'embouts pour ecouteurs Active EP4133747B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2020/066927 WO2021254621A1 (fr) 2020-06-18 2020-06-18 Embout, écouteur et procédé de fabrication d'embouts pour écouteurs

Publications (2)

Publication Number Publication Date
EP4133747A1 EP4133747A1 (fr) 2023-02-15
EP4133747B1 true EP4133747B1 (fr) 2025-08-06

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EP (1) EP4133747B1 (fr)
CN (1) CN115699802B (fr)
WO (1) WO2021254621A1 (fr)

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KR20190142029A (ko) * 2018-06-15 2019-12-26 주식회사 토넷 이어팁
CN109819368B (zh) * 2019-03-19 2021-05-04 黄匡淙 一种耳机应用的耳塞

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