WO2022054714A1 - Listening device - Google Patents

Listening device Download PDF

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Publication number
WO2022054714A1
WO2022054714A1 PCT/JP2021/032461 JP2021032461W WO2022054714A1 WO 2022054714 A1 WO2022054714 A1 WO 2022054714A1 JP 2021032461 W JP2021032461 W JP 2021032461W WO 2022054714 A1 WO2022054714 A1 WO 2022054714A1
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WO
WIPO (PCT)
Prior art keywords
listening device
core material
holding
holding body
connecting portion
Prior art date
Application number
PCT/JP2021/032461
Other languages
French (fr)
Japanese (ja)
Inventor
端明 謝
Original Assignee
ＢｏＣｏ株式会社
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 ＢｏＣｏ株式会社 filed Critical ＢｏＣｏ株式会社
Priority to CN202180052671.0A priority Critical patent/CN116671126A/en
Publication of WO2022054714A1 publication Critical patent/WO2022054714A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/02—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception adapted to be supported entirely by ear

Definitions

  • the present invention relates to a hearing device that utilizes bone conduction to recognize sound by giving vibration to bone.
  • listening devices have been widely used as means for listening to music and conversation.
  • Such hearing devices include those using air conduction and those using bone conduction.
  • the sound source input as an electric signal is converted into the vibration of the air and transmitted to the eardrum to vibrate, and the vibration of the eardrum passes through the middle ear behind the ear and the sound information is sent to the brain. It uses a mechanism that is transmitted and recognized.
  • a hearing device using bone conduction converts an acoustic signal input as an electric signal into mechanical vibration, applies the vibration to the bone from an appropriate position, transmits the vibration to the bone, and transmits the vibration to the bone.
  • the sound is recognized by the conduction sound.
  • this bone conduction listening device does not need to be inserted into the ear canal and enters the ear without blocking the surrounding sound, so it is safe to wear. Is. Further, since the vibration of the eardrum is not used, even a person with deafness can recognize the sound, and its use in hearing aids and the like is being promoted (for example, Patent Document 1).
  • a hearing device using such bone conduction can hear sound by bringing the vibrating part into contact with an appropriate position.
  • Suitable positions include, for example, sites called temples and mastoid processes.
  • the present invention has been made in view of such a problem, and an object of the present invention is to provide a sound-listening device having excellent wearability.
  • the present invention is a sound-listening device using bone conduction, which is a main body portion in which a substrate and a battery are housed, and a vibration portion that converts an acoustic electric signal into vibration and outputs vibration.
  • the elastic portion has an elastic portion for pressing the vibrating portion against the user, and the elastic portion has a tubular core material made of a shape memory alloy and an electric wire arranged inside the core material. It is a hearing device characterized by this.
  • the vibrating portion is housed in one of the holding bodies, the main body is housed in the other holding body, and the one holding body is in contact with the front side or the back side of the ear to transmit vibration. It is desirable that an electric signal is transmitted from the other holding body to the vibrating portion inside the one holding body by the electric wire.
  • each of the holding bodies is connected in a curved shape, and a touch switch is arranged along the curved shape on the outer peripheral surface side of the curved shape, even if the sound listening device can be operated by the touch switch. good.
  • At least a part of the outer peripheral surface of the core material may be coated with a resin.
  • the electric wire and the vibrating portion may be connected by a connector structure.
  • the connecting portion has a curved shape, and the cross-sectional shape of the core material may be a flat shape collapsed in the bending direction.
  • the elastic portion for pressing the vibrating portion against the user is formed of the shape memory alloy, it will not be damaged even if there is a large deformation, and the elastic force will not decrease. .. Further, since a tubular shape memory alloy is used as a protective tube for electric wires and the like, even if the elastic portion is greatly deformed, there is no local deformation and the internal electric wires and the like can be reliably protected.
  • the elastic part is a connecting part for connecting the pair of holding bodies and the listening device can be attached so that the auricle is sandwiched from the front and back by the holding body, the vibrating part can be efficiently placed in the auricle or the vicinity of the auricle. Can be brought into contact.
  • one holding body in which the vibrating portion is housed and the other holding body that transmits an electric signal to the vibrating part and houses the battery or the like are separately configured, one of the holding bodies in which the vibrating part is housed.
  • the holding body can be made compact, and the transmission surface of the holding body can be efficiently brought into contact with the auricle. In particular, even when one of the holding bodies is arranged on the front side of the pinna, it is inconspicuous and has an excellent appearance.
  • the connecting portion has a curved shape and the touch switch is arranged along the curved shape on the outer peripheral surface side of the curved shape, the sound listening device can be operated by the touch switch. Therefore, the operation of the listening device is easy.
  • the electric wire and the vibrating portion are connected by a connector structure, it is easy to assemble the sound listening device.
  • FIG. 2A is a sectional view taken along line DD.
  • FIG. 3A shows another embodiment.
  • FIG. 2A is an enlarged cross-sectional view of part E of FIG. 2A.
  • FIG. 6 is a conceptual diagram showing a state in which the hearing device 1 is attached to the user's auricle 21.
  • the conceptual diagram which shows the state which adjusts the arrangement of the holding body 3a with respect to the user's pinna 21.
  • the conceptual diagram which shows the state which adjusts the arrangement of the holding body 3a with respect to the user's pinna 21.
  • the conceptual diagram which shows the state which adjusts the arrangement of the holding body 3a with respect to the user's pinna 21.
  • FIG. 1 is a perspective view of the listening device 1
  • FIG. 2A is a side view of the listening device 1 (a view of the curved shape of the connecting portion 5 viewed from the front)
  • FIG. 2B is a conceptual diagram showing the configuration of the listening device 1.
  • the hearing device 1 that utilizes bone conduction is mainly composed of a holding body 3a, 3b, a connecting portion 5, a vibrating portion 7, a substrate 9, a battery 11, and the like.
  • the connecting portion 5 is an elastic portion 6 for pressing the vibrating portion 7 against the user.
  • the pair of holding bodies 3a and 3b are arranged to face each other with a predetermined interval, and are connected by a connecting portion 5 which is an elastic portion 6.
  • the connecting portion 5 can be elastically deformed, and the listening device 1 can be held in a state where the pinna is sandwiched between the holding bodies 3a and 3b, and the listening device 1 can be attached to the ear. That is, the sandwiching bodies 3a and 3b are portions that sandwich the auricle from the front side and the back side. The details of the connecting portion 5 will be described later.
  • the vibrating portion 7 is housed inside one of the holding bodies 3a.
  • the vibration unit 7 is a portion that converts an acoustic signal input as an electric signal into mechanical vibration and outputs the vibration.
  • converting an acoustic electric signal into vibration means converting an acoustic electric signal input from the outside into mechanical vibration. For example, by vibrating a diaphragm or the like by the acoustic electric signal, the acoustic electric signal becomes a bone. Converts to transmitted mechanical vibration.
  • the vibration method in the vibrating unit 7 is not particularly limited as long as it can convert an acoustic electric signal into mechanical vibration, and has been conventionally used such as a piezoelectric type, an electromagnetic type, and a giant magnetostriction. The method can be adopted.
  • the vibration obtained in this way is transmitted to the user's bone from the transmission surface 15 on one surface of the sandwiching body 3a.
  • the transmission surface 15 of the sandwiching body 3a is formed so as to face the sandwiching body 3b.
  • the vibration damping material 8 may be arranged at a predetermined portion.
  • the size of the pinch body 3a is sufficient so that the transmission surface 15 of the pinch body 3a can be arranged in a small space of the pinna.
  • Small is desirable.
  • the transmission surface 15 of the holding body 3a directly touches the wearer's skin, it is made of a material that does not cause pain or discomfort when worn.
  • Examples thereof include, but are not limited to, synthetic resin and synthetic rubber, and are preferably made of a flexible or flexible material because they come into contact with the auricle.
  • the other sandwiching body 3b has a portion having a substantially cylindrical outer shape.
  • the axial direction of the substantially cylindrical shape of the sandwiching body 3b is arranged substantially perpendicular to the direction facing the sandwiching body 3a. That is, the surface of the sandwiching body 3b facing the sandwiching body 3a is a side surface having a substantially cylindrical shape and is formed of a curved surface.
  • having a substantially cylindrical portion means that the end face may not have a flat surface, the cross section may be substantially circular, and the direction perpendicular to the cross section may be the longitudinal direction (axial direction). Just do it.
  • the curved shape of the connecting portion 5 is formed so as to have a curved surface facing the holding body 3a when viewed from the front (when viewed from the axial direction of the holding body 3b), it has a substantially cylindrical shape. It does not have to be.
  • the holding body 3b accommodates a substrate 9 for driving the vibrating portion 7, a battery 11, and the like.
  • the substrate 9 has a control unit that controls the vibration unit 7, a communication unit that performs wireless communication, and the like.
  • the communication unit has a reception unit that wirelessly receives an acoustic electric signal from another terminal or the like, and can perform short-range wireless communication such as wireless (for example, Bluetooth (registered trademark)).
  • it may have an operation unit of the listening device 1, a storage unit for storing music information, and the like.
  • the connecting portion 5 connects the holding bodies 3a and 3b in a curved shape
  • the touch switch 17 is arranged along the curved shape on the outer peripheral surface side of the curved shape.
  • the touch switch 17 is, for example, in the form of a flexible film, and is connected to the substrate 9 by an electric wire 13. That is, the sound listening device 1 can be operated by the touch switch 17.
  • the volume can be adjusted by touching the touch switch 17 and sliding it to one side, and the power can be switched on / off by tapping it.
  • the hearing device 1 may be used for one ear or may be used as a set for the right ear and the left ear.
  • the communication units of the pair of sound listening devices 1 may be connected by wire, or may be wirelessly connected via wireless communication such as a short-range magnetic guidance system or via another terminal.
  • the substrate 9 inside the holding body 3b and the vibrating portion 7 inside the holding body 3a are connected by an electric wire 13.
  • the electric wire 13 is housed in the connecting portion 5, and an electric signal is transmitted from the sandwiching body 3b to the vibrating portion 7 inside the sandwiching body 3a. That is, in the present invention, the substrate 9 and the battery 11 are not accommodated in the holding body 3a, and are arranged in the holding body 3b different from the holding body 3a. Therefore, it is possible to prevent the sandwiching body 3a from becoming large.
  • the holding bodies 3a and 3b are perpendicular to the facing direction (A in the figure) of the holding bodies 3a and 3b, respectively.
  • B and C be the center lines of.
  • the connecting portion 5 is connected to the respective holding bodies 3a and 3b on the side farther from the center lines B and C with respect to the respective center lines B and C.
  • FIG. 3A is a sectional view taken along line DD of FIG. 2A.
  • the connecting portion 5 connects the sandwiching bodies 3a and 3b in a curved shape.
  • the connecting portion 5 is mainly composed of a core material 23, a protective member 25, and the like. At least a part of the outer peripheral surface of the connecting portion 5 is composed of a protective member 25 which is softer than the core material 23 of the connecting portion 5.
  • the core material 23 is tubular and is made of, for example, a NiTi-based shape memory alloy. Further, the cross-sectional shape of the core material 23 is a flat shape collapsed in the bending direction. By doing so, the core material 23 can be easily deformed in the bending direction.
  • the fact that at least a part of the outer peripheral surface of the connecting portion 5 is composed of the protective member 25 means that the protective member 25 may be arranged only on the outer peripheral side of the core material 23, and is shown in FIG. 3B, for example. As described above, the protective member 25 may not be arranged on the inner peripheral side of the core material 23. That is, the core material 23 does not have to be completely covered by the protective member 25.
  • the electric wire 13 connected to the touch switch 17 is introduced into the inside through, for example, the core material 23.
  • FIG. 4 is an enlarged cross-sectional view of the E portion of FIG. 2A, and is an enlarged schematic view of the connection structure between the connecting portion 5 and the sandwiching body 3b.
  • the connection structure with the sandwiching body 3a can be the same structure.
  • the connecting portion 5 penetrates the housing of the sandwiching body 3b.
  • the space between the connecting portion 5 and the sandwiching body 3b is closed by, for example, a seal 31.
  • the seal 31 is made of, for example, a flexible silicone resin or the like.
  • the sandwiching body 3b and the core material 23 are fixed by a pin 29. That is, the sandwiching body 3b and the core material 23 are completely fixed, and the axial movement of the connecting portion 5 is restricted.
  • the sandwiching body 3b and at least the protective member 25 on the outer peripheral side of the core material 23 are not completely fixed, and some movement of the protective member 25 is allowed with respect to the sandwiching body 3b.
  • the connector 33a is connected to the tip of the electric wire 13 connected to the vibrating portion 7 in the holding body 3a and the electric wire 13 connected to the touch switch 17.
  • the connector 33b is also connected to the connection portion on the board 9 side. That is, the electric wire 13 and the vibrating portion 7 and the like are connected by a connector structure in the sandwiching body 3b. As described above, by connecting with the connector structure, the sandwiching body 3b and other parts can be separately manufactured and assembled, and the listening device 1 can be easily assembled.
  • the connection portion with the electric wire 13 on the sandwiching body 3a side may also have a connector structure.
  • FIG. 5 is a conceptual diagram (a partial cross-sectional view of the pinna 21) showing a state in which the user wears the hearing device 1.
  • An example in which the hearing device 1 is attached to the right ear of the user will be described, but the left ear can also be attached symmetrically.
  • the listening device 1 is attached so as to open the holding bodies 3a and 3b and to sandwich the auricle 21 between the holding bodies 3a and 3b.
  • the connecting portion 5 is greatly deformed, but since the connecting portion 5 is made of a shape memory alloy, even if the electric wire 13 is arranged inside, damage during deformation is suppressed. be able to.
  • the sandwiching bodies 3a and 3b are opened, a compressive force is applied to the outer peripheral side of the connecting portion 5 in the axial direction, but the protective member 25 is allowed to move slightly with respect to the sandwiching bodies 3a and 3b.
  • the connecting portion 5 is deformed, the protective member 25 does not interfere with the deformation.
  • the connecting portion 5 is an elastic body, the holding body 3a and 3b can be held in close contact with the auricle 21 by the restoring force of the connecting portion 5.
  • the transmission surface 15 of the pinch body 3a is in contact with the front side of the pinna 21 (right side in FIG. 5), and the pinch body 3b is in contact with the back side of the pinna 21. .. More specifically, the pinching body 3a is mounted so as to fit into a recess (a recess above the earlobe) on the front surface of the pinna 21, and the transmission surface 15 is in a direction facing the pinching body 3b and is opposed to the pinna 21. Adheres to the vicinity of the upper surface of the recess.
  • the inventor found that by transmitting sound to the cartilage of the auricle instead of the skull, it is possible to obtain a loud volume with a smaller power. Therefore, according to the present embodiment, it is possible to obtain a fit feeling when the user wears the hearing device 1, and it is possible to efficiently transmit the vibration from the transmission surface 15 to the cartilage of the auricle 21.
  • FIG. 6A is a conceptual diagram of this state viewed from above.
  • the surface of the sandwiching body 3b facing the sandwiching body 3a is formed of a curved surface.
  • the shape of the auricle 21 differs depending on the user. Therefore, the position where the vibration is efficiently transmitted to the bone differs depending on the user. Therefore, it may be necessary to finely adjust the position of the holding body 3a.
  • the contact portion of the pinching body 3b with the pinna 21 (that is, the surface facing the pinching body 3a) is a curved surface. Therefore, as shown in FIGS. 6B and 6C, the pinching body 3b can be easily pinched by rotating the pinching body 3b while keeping the position of the pinching body 3b (that is, the contact position between the pinching body 3b and the pinna 21). The arrangement and angle of the body 3a can be finely adjusted.
  • the connecting portion 5 is formed by the core material 23 made of the shape memory alloy, it is possible to prevent the connecting portion 5 from being damaged even by a large deformation. Further, since the core material 23 is a tube body made of a shape memory alloy, damage to the electric wire 13 can be suppressed even if the electric wire 13 is arranged inside. Further, since the core material 23 has a flat shape collapsed with respect to the bending direction (deformation direction), the connecting portion 5 can be easily deformed. At this time, the core material 23 made of a shape memory alloy can press the holding body 3a to an appropriate position of the user's auricle with an appropriate pressure. In addition, the pressing force (holding force) does not change for a long period of time.
  • the vibrating portion 7, the substrate 9, and the battery 11 in each of the holding bodies 3a and 3b, it is possible to prevent one of the holding bodies from becoming large.
  • the size can be reduced as compared with the holding body 3b, the wearability is good, and the appearance is not noticeable. ..
  • the holding body 3b in which the substrate 9 and the battery 11 are housed is arranged behind the auricle 21, it is inconspicuous and has good wearability.
  • the transmission surface 15 can be brought into close contact with the skin by the arm-shaped connecting portion 5 which is an elastic body, vibration can be reliably transmitted to the cartilage of the auricle 21 with a simple structure.
  • the connecting portions of the connecting portion 5 and the sandwiching bodies 3a and 3b are arranged on sides far from each other, the length of the connecting portion 5 can be secured and the deformability of the connecting portion 5 can be enhanced. can.
  • the protective member 25 on the outer peripheral side of the connecting portion 5 to move, the connecting portion 5 (protecting member 25) may be damaged when the connecting portion 5 is deformed in the direction of opening the sandwiching bodies 3a and 3b. Can be suppressed.
  • the transmission surface 15 can be arranged at an appropriate position with respect to the shape of the user's pinna 21 and the like.
  • the holding body 3b has a substantially cylindrical portion and the axial direction of the substantially cylindrical shape is arranged substantially perpendicular to the direction facing the holding body 3b, the holding body 3b is placed on the pinna 21. It can be easily placed behind.
  • connection between the holding body 3b or the holding body 3a and the electric wire 13 becomes easy. Further, by arranging the touch switch 17 along the curved shape on the outer peripheral surface of the connecting portion 5, the user does not need to search for the button position and the like, and the listening device 1 can be operated more intuitively. ..
  • FIG. 7 is a diagram showing a usage state of the listening device 1a.
  • the same configurations as those of the listening device 1 are designated by the same reference numerals as those in FIGS. 1 to 5, and duplicated description will be omitted.
  • the listening device 1a is configured by connecting a pair of main body portions 35 to each other by an elastic portion 6a.
  • the main body portion 35 has, for example, the same configuration as the sandwiching body 3a.
  • a vibrating portion 7a is connected to the main body portion 35. That is, in the present embodiment, the main body portion 35 and the vibrating portion 7a are not connected by the elastic portion, but the pair of main body portions 35 are connected by the elastic portion 6a.
  • the cross-sectional structure of the elastic portion 6a is substantially the same as that of the elastic portion 6 (connecting portion 5). Further, the vibrating portion 7a has substantially the same structure as that of the sandwiching body 3a.
  • the same effect as that of the first embodiment can be obtained.
  • a tube made of shape memory alloy as an elastic part for connecting some structures and suppress damage to the elastic part and internal electric wires due to deformation at the time of attachment / detachment, a holding body. It can be applied to other than the use as a connecting part between each other.
  • the hearing aids 1 and 1a wirelessly receive an acoustic signal from an external terminal or the like
  • the microphone is housed in the holding body 3b, and the sound information collected by the microphone is collected by the vibrating portion 7 inside the holding body 3a. It can be used as a hearing aid by transmitting it as an electric signal to.
  • the wireless receiving unit may be arranged on the substrate 9 so that the use as a hearing aid and the use as an earphone for music or the like can be switched.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurosurgery (AREA)
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  • Details Of Audible-Bandwidth Transducers (AREA)
  • Headphones And Earphones (AREA)
  • Clamps And Clips (AREA)

Abstract

In the present invention, a pair of holding elements 3a, 3b are positioned facing each other with a prescribed gap therebetween and are connected by a connecting part 5. The connecting part 5 is an elastic substance and makes it possible to hold a listening device 1, with auricles held between the holding elements 3a, 3b, and attach the listening device 1 to ears. The connecting part 5 is configured mainly from a core material and a protective member, etc. The core material is tubular and is made of, e.g., an NiTi-based shape memory alloy. An electric wire 13 is inserted into the inside of the core material. The cross-sectional shape of the core material is a flat shape collapsed in the direction of a curve. Due to being configured in this manner, the core material can be easily deformed in the direction of the curve.

Description

聴音装置Hearing device
　本発明は、骨に振動を与えることで音を認識させる骨伝導を利用した聴音装置に関するものである。 The present invention relates to a hearing device that utilizes bone conduction to recognize sound by giving vibration to bone.
　従来より、音楽や会話を聴く手段として、ヘッドホンやイヤホンなどのような装置（以下、聴音装置という。）が広く使用されてきている。このような聴音装置としては、空気伝導を利用したものと骨伝導を利用したものとがある。空気伝導を利用したものは、電気信号として入力された音源を空気の振動に変換して鼓膜に伝えて振動させ、鼓膜の振動が耳の奥の中耳を通って、脳に音の情報が伝達され認識される仕組みを利用している。 Conventionally, devices such as headphones and earphones (hereinafter referred to as listening devices) have been widely used as means for listening to music and conversation. Such hearing devices include those using air conduction and those using bone conduction. In the case of using air conduction, the sound source input as an electric signal is converted into the vibration of the air and transmitted to the eardrum to vibrate, and the vibration of the eardrum passes through the middle ear behind the ear and the sound information is sent to the brain. It uses a mechanism that is transmitted and recognized.
　一方、骨伝導を利用した聴音装置は、電気信号として入力された音響信号を機械的な振動に変換し、その振動を適切な位置から骨に与えて骨に振動を伝え、その振動により伝わる骨伝導音で音を認識させるものである。この骨伝導を利用した聴音装置は、ヘッドホンやイヤホンのように耳孔に挿入して使用する必要がなく、耳には周囲の音が遮蔽されることなく入ってくるので、装着していても安全である。また、鼓膜の振動を利用しないことから、難聴の人でも音を認識することができ、補聴器等への利用も進められている（例えば特許文献１）。 On the other hand, a hearing device using bone conduction converts an acoustic signal input as an electric signal into mechanical vibration, applies the vibration to the bone from an appropriate position, transmits the vibration to the bone, and transmits the vibration to the bone. The sound is recognized by the conduction sound. Unlike headphones and earphones, this bone conduction listening device does not need to be inserted into the ear canal and enters the ear without blocking the surrounding sound, so it is safe to wear. Is. Further, since the vibration of the eardrum is not used, even a person with deafness can recognize the sound, and its use in hearing aids and the like is being promoted (for example, Patent Document 1).
特開平０２－６２１９９号公報Japanese Unexamined Patent Publication No. 02-62199
　このような骨伝導を利用した聴音装置は、振動部を適切な位置に当接させることで聴音が可能となる。適切な位置としては、例えば、こめかみや乳様突起と呼ばれる部位が挙げられる。 A hearing device using such bone conduction can hear sound by bringing the vibrating part into contact with an appropriate position. Suitable positions include, for example, sites called temples and mastoid processes.
　一方、効率よく骨伝導を利用するためには、ある程度の力で振動部を対象部位に押し付ける必要がある。例えば、ある程度の弾性力で対象部位を挟み込むことで、振動部を対象部位に押し付ける必要がある。しかし、聴音装置を脱着する際には、弾性部を変形させる必要があるため、変形によって弾性部が破損する恐れがある。特に、弾性部の内部に電線等が収容される場合には、弾性部に局所的な変形があると、内部の電線等の損傷の恐れがある。また、長期の利用によって、弾性部の弾性力が徐々に低下し、振動部の対象部への押圧力が低下する恐れがある。 On the other hand, in order to use bone conduction efficiently, it is necessary to press the vibrating part against the target part with a certain amount of force. For example, it is necessary to press the vibrating portion against the target portion by sandwiching the target portion with a certain elastic force. However, when the listening device is attached or detached, it is necessary to deform the elastic portion, so that the deformation may damage the elastic portion. In particular, when an electric wire or the like is housed inside the elastic portion, if the elastic portion is locally deformed, there is a risk of damage to the electric wire or the like inside. Further, with long-term use, the elastic force of the elastic portion may gradually decrease, and the pressing force of the vibrating portion on the target portion may decrease.
　本発明は、このような問題に鑑みてなされたもので、装着性に優れる聴音装置を提供することを目的とする。 The present invention has been made in view of such a problem, and an object of the present invention is to provide a sound-listening device having excellent wearability.
　前述した目的を達成するため、本発明は、骨伝導を利用した聴音装置であって、基板とバッテリーとが収容される本体部と、音響電気信号を振動に変換して振動を出力する振動部と、前記振動部を利用者に押圧するための弾性部と、を有し、前記弾性部は、形状記憶合金製の管状の芯材と、前記芯材の内部に配置された電線とを有することを特徴とする聴音装置である。 In order to achieve the above-mentioned object, the present invention is a sound-listening device using bone conduction, which is a main body portion in which a substrate and a battery are housed, and a vibration portion that converts an acoustic electric signal into vibration and outputs vibration. The elastic portion has an elastic portion for pressing the vibrating portion against the user, and the elastic portion has a tubular core material made of a shape memory alloy and an electric wire arranged inside the core material. It is a hearing device characterized by this.
　耳を表側と裏側から挟み込む一対の挟持体を有し、前記弾性部は、一対の前記挟持体同士を連結する連結部であり、前記連結部によって、前記挟持体を耳に装着可能であり、前記振動部は、一方の前記挟持体に収容され、前記本体部は、他方の前記挟持体に収容され、前記一方の挟持体には、耳の表側または耳の裏側に接触して振動を伝達する伝達面が設けられ、前記電線によって、前記他方の挟持体から前記一方の挟持体の内部の前記振動部へ電気信号が伝送されることが望ましい。 It has a pair of holding bodies that sandwich the ear from the front side and the back side, and the elastic portion is a connecting portion that connects the pair of the holding bodies to each other, and the holding body can be attached to the ear by the connecting portion. The vibrating portion is housed in one of the holding bodies, the main body is housed in the other holding body, and the one holding body is in contact with the front side or the back side of the ear to transmit vibration. It is desirable that an electric signal is transmitted from the other holding body to the vibrating portion inside the one holding body by the electric wire.
　前記連結部は、それぞれの前記挟持体を湾曲形状で連結し、湾曲形状の外周面側において、湾曲形状に沿ってタッチスイッチが配置され、前記タッチスイッチによって聴音装置の操作が可能であってもよい。 In the connecting portion, each of the holding bodies is connected in a curved shape, and a touch switch is arranged along the curved shape on the outer peripheral surface side of the curved shape, even if the sound listening device can be operated by the touch switch. good.
　前記芯材の外周面の少なくとも一部が、樹脂で被覆されてもよい。 At least a part of the outer peripheral surface of the core material may be coated with a resin.
　前記電線と前記振動部とは、コネクタ構造によって接続されてもよい。 The electric wire and the vibrating portion may be connected by a connector structure.
　前記連結部は湾曲形状を有し、前記芯材の断面形状は、湾曲方向につぶれた偏平形状であってもよい。 The connecting portion has a curved shape, and the cross-sectional shape of the core material may be a flat shape collapsed in the bending direction.
　本発明によれば、振動部を利用者に押圧するための弾性部が、形状記憶合金で形成されるため、大きな変形があっても破損することがなく、また弾性力が低下することもない。また、電線等の保護管として、管状の形状記憶合金を用いるため、弾性部を大きく変形させても、局所的な変形がなく、内部の電線等を確実に保護することができる。 According to the present invention, since the elastic portion for pressing the vibrating portion against the user is formed of the shape memory alloy, it will not be damaged even if there is a large deformation, and the elastic force will not decrease. .. Further, since a tubular shape memory alloy is used as a protective tube for electric wires and the like, even if the elastic portion is greatly deformed, there is no local deformation and the internal electric wires and the like can be reliably protected.
　また、弾性部が一対の挟持体を連結する連結部であり、挟持体によって耳介を表裏から挟み込むようにして聴音装置を取り付けることができれば、振動部を効率よく、耳介又は耳介近傍に当接させることができる。この際、振動部が収容される一方の挟持体と、振動部に電気信号を伝送し、バッテリー等を収容する他方の挟持体とが別々に構成されれば、振動部が収容される一方の挟持体をコンパクトにすることができ、挟持体の伝達面を効率よく耳介に接触させることができる。特に、一方の挟持体を耳介の表側に配置する場合でも、目立ちにくく見た目にも優れる。 Further, if the elastic part is a connecting part for connecting the pair of holding bodies and the listening device can be attached so that the auricle is sandwiched from the front and back by the holding body, the vibrating part can be efficiently placed in the auricle or the vicinity of the auricle. Can be brought into contact. At this time, if one holding body in which the vibrating portion is housed and the other holding body that transmits an electric signal to the vibrating part and houses the battery or the like are separately configured, one of the holding bodies in which the vibrating part is housed. The holding body can be made compact, and the transmission surface of the holding body can be efficiently brought into contact with the auricle. In particular, even when one of the holding bodies is arranged on the front side of the pinna, it is inconspicuous and has an excellent appearance.
　また、連結部が湾曲形状であり、湾曲形状の外周面側において、湾曲形状に沿ってタッチスイッチを配置すれば、タッチスイッチによって聴音装置の操作が可能となる。このため、聴音装置の操作が容易である。 Further, if the connecting portion has a curved shape and the touch switch is arranged along the curved shape on the outer peripheral surface side of the curved shape, the sound listening device can be operated by the touch switch. Therefore, the operation of the listening device is easy.
　また、芯材の外周面の少なくとも一部を樹脂で被覆することで、芯材の破損を抑制することができる。 Further, by covering at least a part of the outer peripheral surface of the core material with resin, damage to the core material can be suppressed.
　また、電線と前記振動部とは、コネクタ構造によって接続されれば、聴音装置の組立が容易である。 Further, if the electric wire and the vibrating portion are connected by a connector structure, it is easy to assemble the sound listening device.
　また、芯材の断面形状を偏平形状とすることで、連結部の変形が容易である。 Also, by making the cross-sectional shape of the core material flat, it is easy to deform the connecting part.
　本発明によれば、装着性に優れる聴音装置を提供することができる。 According to the present invention, it is possible to provide a hearing device having excellent wearability.
聴音装置１の斜視図。The perspective view of the hearing apparatus 1. 聴音装置１の側面図。The side view of the hearing apparatus 1. 聴音装置１の構成を示す図。The figure which shows the structure of the hearing apparatus 1. 図２ＡのＤ－Ｄ線断面図。FIG. 2A is a sectional view taken along line DD. 図３Ａの他の実施形態を示す図。FIG. 3A shows another embodiment. 図２ＡのＥ部の拡大断面図。FIG. 2A is an enlarged cross-sectional view of part E of FIG. 2A. 利用者の耳介２１に聴音装置１を装着した状態を示す概念図。FIG. 6 is a conceptual diagram showing a state in which the hearing device 1 is attached to the user's auricle 21. 利用者の耳介２１に対して、挟持体３ａの配置を調整する状態を示す概念図。The conceptual diagram which shows the state which adjusts the arrangement of the holding body 3a with respect to the user's pinna 21. 利用者の耳介２１に対して、挟持体３ａの配置を調整する状態を示す概念図。The conceptual diagram which shows the state which adjusts the arrangement of the holding body 3a with respect to the user's pinna 21. 利用者の耳介２１に対して、挟持体３ａの配置を調整する状態を示す概念図。The conceptual diagram which shows the state which adjusts the arrangement of the holding body 3a with respect to the user's pinna 21. 聴音装置１ａを装着した状態を示す概念図。The conceptual diagram which shows the state which the listening device 1a is attached.
　以下、図面を参照しながら、本発明の第１の実施形態について説明する。図１は、聴音装置１の斜視図、図２Ａは聴音装置１の側面図（連結部５の湾曲形状を正面から見た図）、図２Ｂは、聴音装置１の構成を示す概念図である。骨伝導を利用する聴音装置１は、主に、挟持体３ａ、３ｂ、連結部５、振動部７、基板９、バッテリー１１等から構成される。本実施形態では、連結部５が、振動部７を利用者に押圧するための弾性部６となる。 Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view of the listening device 1, FIG. 2A is a side view of the listening device 1 (a view of the curved shape of the connecting portion 5 viewed from the front), and FIG. 2B is a conceptual diagram showing the configuration of the listening device 1. .. The hearing device 1 that utilizes bone conduction is mainly composed of a holding body 3a, 3b, a connecting portion 5, a vibrating portion 7, a substrate 9, a battery 11, and the like. In the present embodiment, the connecting portion 5 is an elastic portion 6 for pressing the vibrating portion 7 against the user.
　一対の挟持体３ａ、３ｂは、所定の間隔をあけて対向して配置され、弾性部６である連結部５で連結される。連結部５は、弾性変形が可能であり、挟持体３ａ、３ｂで耳介を挟み込んだ状態で聴音装置１を保持し、聴音装置１を耳に装着することができる。すなわち、挟持体３ａ、３ｂは耳介を表側と裏側から挟み込む部位である。なお、連結部５についての詳細は後述する。 The pair of holding bodies 3a and 3b are arranged to face each other with a predetermined interval, and are connected by a connecting portion 5 which is an elastic portion 6. The connecting portion 5 can be elastically deformed, and the listening device 1 can be held in a state where the pinna is sandwiched between the holding bodies 3a and 3b, and the listening device 1 can be attached to the ear. That is, the sandwiching bodies 3a and 3b are portions that sandwich the auricle from the front side and the back side. The details of the connecting portion 5 will be described later.
　図２Ｂに示すように、一方の挟持体３ａの内部には、振動部７が収容される。振動部７は、電気信号として入力された音響信号を機械的な振動に変換して振動を出力する部位である。なお、音響電気信号を振動に変換するとは、外部から入力された音響電気信号を機械振動に変換することであり、例えば、音響電気信号によってダイヤフラム等を振動させることで、音響電気信号を骨に伝達する機械振動に変換する。なお、本発明においては、振動部７における振動方式は、特に限定されるものではなく、音響電気信号を機械振動に変換できればよく、圧電式、電磁式、超磁歪など、従来から用いられている方法を採用することができる。 As shown in FIG. 2B, the vibrating portion 7 is housed inside one of the holding bodies 3a. The vibration unit 7 is a portion that converts an acoustic signal input as an electric signal into mechanical vibration and outputs the vibration. It should be noted that converting an acoustic electric signal into vibration means converting an acoustic electric signal input from the outside into mechanical vibration. For example, by vibrating a diaphragm or the like by the acoustic electric signal, the acoustic electric signal becomes a bone. Converts to transmitted mechanical vibration. In the present invention, the vibration method in the vibrating unit 7 is not particularly limited as long as it can convert an acoustic electric signal into mechanical vibration, and has been conventionally used such as a piezoelectric type, an electromagnetic type, and a giant magnetostriction. The method can be adopted.
　このようにして得られる振動は、挟持体３ａの一方の面における伝達面１５から利用者の骨に伝達される。本実施形態では、挟持体３ａの伝達面１５は、挟持体３ｂに対向する向きに形成される。なお、振動部７の振動が挟持体３ａの筐体等に伝わることを抑制するため、所定の部位に制振材８を配置してもよい。 The vibration obtained in this way is transmitted to the user's bone from the transmission surface 15 on one surface of the sandwiching body 3a. In the present embodiment, the transmission surface 15 of the sandwiching body 3a is formed so as to face the sandwiching body 3b. In addition, in order to suppress the vibration of the vibrating portion 7 from being transmitted to the housing or the like of the sandwiching body 3a, the vibration damping material 8 may be arranged at a predetermined portion.
　ここで、挟持体３ａから耳介の軟骨へ効率よく振動を伝達するためには、挟持体３ａの伝達面１５が耳介の小さなスペースに配置できるように、挟持体３ａのサイズは、十分に小さいことが望ましい。例えば、１０φ以下のサイズの振動子を用いることで、挟持体３ａのサイズを小さくすることができるため望ましい。 Here, in order to efficiently transmit vibration from the pinch body 3a to the cartilage of the pinna, the size of the pinch body 3a is sufficient so that the transmission surface 15 of the pinch body 3a can be arranged in a small space of the pinna. Small is desirable. For example, it is desirable to use an oscillator having a size of 10φ or less because the size of the sandwiching body 3a can be reduced.
　挟持体３ａの伝達面１５は、装着者の皮膚に直接触れるので、装着時に痛みや不快感を与えない素材で構成される。例えば、合成樹脂や合成ゴム等が挙げられ、これに限られないが、耳介に当接するものであるため、可撓性や柔軟性を有する素材で構成されることが好ましい。 Since the transmission surface 15 of the holding body 3a directly touches the wearer's skin, it is made of a material that does not cause pain or discomfort when worn. Examples thereof include, but are not limited to, synthetic resin and synthetic rubber, and are preferably made of a flexible or flexible material because they come into contact with the auricle.
　他方の挟持体３ｂは、外形が、略円柱形状の部位を有する。挟持体３ｂの略円柱形状の軸方向は、挟持体３ａとの対向方向に対して略垂直に配置される。すなわち、挟持体３ｂの、挟持体３ａとの対向面は、略円柱形状の側面であって、曲面で形成される。 The other sandwiching body 3b has a portion having a substantially cylindrical outer shape. The axial direction of the substantially cylindrical shape of the sandwiching body 3b is arranged substantially perpendicular to the direction facing the sandwiching body 3a. That is, the surface of the sandwiching body 3b facing the sandwiching body 3a is a side surface having a substantially cylindrical shape and is formed of a curved surface.
　なお、略円柱形状の部位を有するとは、端面に平坦な面が無くてもよく、断面が略円形であって、断面に垂直な方向が長手方向（軸方向）となるような形状であればよい。また、連結部５の湾曲形状を正面から見た際に（挟持体３ｂの軸方向から見た際に）、挟持体３ａとの対向面が曲面となるように形成されれば、略円柱形状でなくてもよい。 It should be noted that having a substantially cylindrical portion means that the end face may not have a flat surface, the cross section may be substantially circular, and the direction perpendicular to the cross section may be the longitudinal direction (axial direction). Just do it. Further, if the curved shape of the connecting portion 5 is formed so as to have a curved surface facing the holding body 3a when viewed from the front (when viewed from the axial direction of the holding body 3b), it has a substantially cylindrical shape. It does not have to be.
　挟持体３ｂには、振動部７を駆動する基板９とバッテリー１１等が収容される。基板９は、振動部７を制御する制御部や、無線通信を行う通信部等を有する。例えば、通信部は、他の端末等からの音響電気信号を無線で受信する受信部を有し、無線（例えばＢｌｕｅｔｏｏｔｈ（登録商標））などの近距離無線通信を行うことができる。また、この他、聴音装置１の操作部や音楽情報を記憶する記憶部等を有していてもよい。 The holding body 3b accommodates a substrate 9 for driving the vibrating portion 7, a battery 11, and the like. The substrate 9 has a control unit that controls the vibration unit 7, a communication unit that performs wireless communication, and the like. For example, the communication unit has a reception unit that wirelessly receives an acoustic electric signal from another terminal or the like, and can perform short-range wireless communication such as wireless (for example, Bluetooth (registered trademark)). In addition, it may have an operation unit of the listening device 1, a storage unit for storing music information, and the like.
　また、図示したように、連結部５は、それぞれの挟持体３ａ、３ｂを湾曲形状で連結し、湾曲形状の外周面側において、湾曲形状に沿ってタッチスイッチ１７が配置される。タッチスイッチ１７は、例えばフレキシブルなフィルム状であり、基板９と電線１３によって接続される。すなわち、タッチスイッチ１７によって聴音装置１の操作が可能である。例えば、タッチスイッチ１７に触れて一方にスライドさせることで、音量調整が可能であり、タップすることで電源のオン／オフの切り替えが可能である。 Further, as shown in the figure, the connecting portion 5 connects the holding bodies 3a and 3b in a curved shape, and the touch switch 17 is arranged along the curved shape on the outer peripheral surface side of the curved shape. The touch switch 17 is, for example, in the form of a flexible film, and is connected to the substrate 9 by an electric wire 13. That is, the sound listening device 1 can be operated by the touch switch 17. For example, the volume can be adjusted by touching the touch switch 17 and sliding it to one side, and the power can be switched on / off by tapping it.
　なお、聴音装置１は、片耳で用いられてもよく、右耳用と左耳用のセットで用いられてもよい。この際、一対の聴音装置１の通信部同士は有線で接続されてもよく、または、近距離磁気誘導方式などの無線通信や、他の端末を介して無線で接続されてもよい。 The hearing device 1 may be used for one ear or may be used as a set for the right ear and the left ear. At this time, the communication units of the pair of sound listening devices 1 may be connected by wire, or may be wirelessly connected via wireless communication such as a short-range magnetic guidance system or via another terminal.
　挟持体３ｂ内部の基板９と、挟持体３ａ内部の振動部７とは、電線１３で接続される。電線１３は、連結部５に収容され、挟持体３ｂから挟持体３ａの内部の振動部７へ電気信号が伝送される。すなわち、本発明では、挟持体３ａには、基板９やバッテリー１１が収容されず、挟持体３ａとは別の挟持体３ｂに配置される。このため、挟持体３ａが大型化することを抑制することができる。 The substrate 9 inside the holding body 3b and the vibrating portion 7 inside the holding body 3a are connected by an electric wire 13. The electric wire 13 is housed in the connecting portion 5, and an electric signal is transmitted from the sandwiching body 3b to the vibrating portion 7 inside the sandwiching body 3a. That is, in the present invention, the substrate 9 and the battery 11 are not accommodated in the holding body 3a, and are arranged in the holding body 3b different from the holding body 3a. Therefore, it is possible to prevent the sandwiching body 3a from becoming large.
　ここで、図２Ａに示すように、それぞれの挟持体３ａ、３ｂを対向させて配置した状態において、挟持体３ａ、３ｂの対向方向（図中Ａ）に垂直な、それぞれの挟持体３ａ、３ｂの中心線をＢ、Ｃとする。この際、連結部５は、それぞれの中心線Ｂ、Ｃに対して、中心線Ｂ、Ｃよりも互いに遠い側においてそれぞれの挟持体３ａ、３ｂと連結する。このようにすることで、聴音装置１のサイズを大きくすることなく、連結部５の長さを長くとることができる。このため、連結部５の変形能を高め、より大きな変形を可能とすることができる。 Here, as shown in FIG. 2A, in a state where the holding bodies 3a and 3b are arranged so as to face each other, the holding bodies 3a and 3b are perpendicular to the facing direction (A in the figure) of the holding bodies 3a and 3b, respectively. Let B and C be the center lines of. At this time, the connecting portion 5 is connected to the respective holding bodies 3a and 3b on the side farther from the center lines B and C with respect to the respective center lines B and C. By doing so, the length of the connecting portion 5 can be increased without increasing the size of the listening device 1. Therefore, it is possible to increase the deformability of the connecting portion 5 and enable larger deformation.
　次に、連結部５の詳細について説明する。図３Ａは、図２ＡのＤ－Ｄ線断面図である。連結部５は、挟持体３ａ、３ｂを湾曲形状で連結する。連結部５は、主に芯材２３と保護部材２５等から構成される。連結部５の外周面の少なくとも一部は、連結部５の芯材２３と比較して軟質である保護部材２５で構成される。芯材２３は、管状であり、例えば、ＮｉＴｉ系の形状記憶合金製である。また、芯材２３の断面形状は、湾曲方向につぶれた偏平形状である。このようにすることで、芯材２３を湾曲方向に容易に変形させることができる。 Next, the details of the connecting portion 5 will be described. FIG. 3A is a sectional view taken along line DD of FIG. 2A. The connecting portion 5 connects the sandwiching bodies 3a and 3b in a curved shape. The connecting portion 5 is mainly composed of a core material 23, a protective member 25, and the like. At least a part of the outer peripheral surface of the connecting portion 5 is composed of a protective member 25 which is softer than the core material 23 of the connecting portion 5. The core material 23 is tubular and is made of, for example, a NiTi-based shape memory alloy. Further, the cross-sectional shape of the core material 23 is a flat shape collapsed in the bending direction. By doing so, the core material 23 can be easily deformed in the bending direction.
　なお、連結部５の外周面の少なくとも一部が保護部材２５で構成されるとは、例えば、芯材２３の外周側にのみ保護部材２５が配置されていてもよく、例えば、図３Ｂに示すように、芯材２３の内周側は、保護部材２５が配置されていなくてもよい。すなわち、保護部材２５によって、芯材２３が完全に覆われなくてもよい。なお、タッチスイッチ１７と接続される電線１３は、例えば、芯材２３を貫通して内部に導入される。 The fact that at least a part of the outer peripheral surface of the connecting portion 5 is composed of the protective member 25 means that the protective member 25 may be arranged only on the outer peripheral side of the core material 23, and is shown in FIG. 3B, for example. As described above, the protective member 25 may not be arranged on the inner peripheral side of the core material 23. That is, the core material 23 does not have to be completely covered by the protective member 25. The electric wire 13 connected to the touch switch 17 is introduced into the inside through, for example, the core material 23.
　図４は、図２ＡのＥ部の拡大断面図であり、連結部５と挟持体３ｂとの接続構造の拡大概略図である。なお、挟持体３ａとの接続構造も同様の構造とすることができる。連結部５は、挟持体３ｂの筐体を貫通する。連結部５と挟持体３ｂとの間は、例えばシール３１によって塞がれる。シール３１は、例えば柔軟なシリコン樹脂等で形成される。 FIG. 4 is an enlarged cross-sectional view of the E portion of FIG. 2A, and is an enlarged schematic view of the connection structure between the connecting portion 5 and the sandwiching body 3b. The connection structure with the sandwiching body 3a can be the same structure. The connecting portion 5 penetrates the housing of the sandwiching body 3b. The space between the connecting portion 5 and the sandwiching body 3b is closed by, for example, a seal 31. The seal 31 is made of, for example, a flexible silicone resin or the like.
　連結部５の端部近傍において、挟持体３ｂと芯材２３とはピン２９によって固定される。すなわち、挟持体３ｂと芯材２３とは完全に固定されて、連結部５の軸方向への移動が規制される。一方、挟持体３ｂと、少なくとも芯材２３の外周側の保護部材２５とは完全に固定されずに、挟持体３ｂに対して保護部材２５の多少の動きが許容される。 In the vicinity of the end of the connecting portion 5, the sandwiching body 3b and the core material 23 are fixed by a pin 29. That is, the sandwiching body 3b and the core material 23 are completely fixed, and the axial movement of the connecting portion 5 is restricted. On the other hand, the sandwiching body 3b and at least the protective member 25 on the outer peripheral side of the core material 23 are not completely fixed, and some movement of the protective member 25 is allowed with respect to the sandwiching body 3b.
　また、挟持体３ａ内の振動部７と接続される電線１３や、タッチスイッチ１７と接続される電線１３の先端には、コネクタ３３ａが接続される。一方、基板９側の接続部にもコネクタ３３ｂが接続される。すなわち、電線１３と振動部７等とは、挟持体３ｂにおいて、コネクタ構造によって接続される。このように、コネクタ構造による接続とすることで、挟持体３ｂと、その他部位とを別々に製造して組み立てることができ、聴音装置１の組立が容易である。なお、挟持体３ａ側における電線１３との接続部も、コネクタ構造としてもよい。 Further, the connector 33a is connected to the tip of the electric wire 13 connected to the vibrating portion 7 in the holding body 3a and the electric wire 13 connected to the touch switch 17. On the other hand, the connector 33b is also connected to the connection portion on the board 9 side. That is, the electric wire 13 and the vibrating portion 7 and the like are connected by a connector structure in the sandwiching body 3b. As described above, by connecting with the connector structure, the sandwiching body 3b and other parts can be separately manufactured and assembled, and the listening device 1 can be easily assembled. The connection portion with the electric wire 13 on the sandwiching body 3a side may also have a connector structure.
　次に、聴音装置１の使用方法について説明する。図５は、利用者が聴音装置１を装着した状態を示す概念図（耳介２１の一部断面図）である。なお、利用者の右耳に聴音装置１を装着した例について説明するが、左耳についても対称に装着可能である。 Next, how to use the hearing device 1 will be described. FIG. 5 is a conceptual diagram (a partial cross-sectional view of the pinna 21) showing a state in which the user wears the hearing device 1. An example in which the hearing device 1 is attached to the right ear of the user will be described, but the left ear can also be attached symmetrically.
　本発明にかかる聴音装置１は、挟持体３ａ、３ｂを開き、挟持体３ａ、３ｂで耳介２１を挟み込むようにして装着される。挟持体３ａ、３ｂを開いた際には、連結部５は大きく変形するが、連結部５が形状記憶合金製であるため、内部に電線１３を配置しても、変形時の破損を抑制することができる。 The listening device 1 according to the present invention is attached so as to open the holding bodies 3a and 3b and to sandwich the auricle 21 between the holding bodies 3a and 3b. When the sandwiching bodies 3a and 3b are opened, the connecting portion 5 is greatly deformed, but since the connecting portion 5 is made of a shape memory alloy, even if the electric wire 13 is arranged inside, damage during deformation is suppressed. be able to.
　また、挟持体３ａ、３ｂを開く際に、連結部５の外周側は、軸方向に対する圧縮力がかかるが、保護部材２５は、挟持体３ａ、３ｂに対して多少の動きが許容されるため、連結部５の変形時に、保護部材２５が変形の妨げとなることがない。また、連結部５が弾性体であるため、連結部５の復元力によって挟持体３ａ、３ｂが耳介２１に密着して装着された状態を保持することができる。 Further, when the sandwiching bodies 3a and 3b are opened, a compressive force is applied to the outer peripheral side of the connecting portion 5 in the axial direction, but the protective member 25 is allowed to move slightly with respect to the sandwiching bodies 3a and 3b. When the connecting portion 5 is deformed, the protective member 25 does not interfere with the deformation. Further, since the connecting portion 5 is an elastic body, the holding body 3a and 3b can be held in close contact with the auricle 21 by the restoring force of the connecting portion 5.
　聴音装置１を耳介２１に装着すると、挟持体３ａの伝達面１５は、耳介２１の表側（図５の右側）に当接され、挟持体３ｂは耳介２１の裏側に当接される。より詳細には、挟持体３ａは、耳介２１の前面の凹部（耳たぶより上方の凹部）に嵌るように装着され、伝達面１５は、挟持体３ｂとの対向方向であって、耳介２１の凹部の上面近傍に密着する。 When the hearing device 1 is attached to the pinna 21, the transmission surface 15 of the pinch body 3a is in contact with the front side of the pinna 21 (right side in FIG. 5), and the pinch body 3b is in contact with the back side of the pinna 21. .. More specifically, the pinching body 3a is mounted so as to fit into a recess (a recess above the earlobe) on the front surface of the pinna 21, and the transmission surface 15 is in a direction facing the pinching body 3b and is opposed to the pinna 21. Adheres to the vicinity of the upper surface of the recess.
　ここで、発明者は、鋭意研究の結果、頭蓋骨ではなく、耳介の軟骨に音を伝えることで、より小さなパワーで大きな音量を得ることができることを見出した。このため、本実施形態によれば、利用者が聴音装置１を装着した際のフィット感を得ることができ、伝達面１５からの振動を効率よく耳介２１の軟骨へ伝達することができる。 Here, as a result of diligent research, the inventor found that by transmitting sound to the cartilage of the auricle instead of the skull, it is possible to obtain a loud volume with a smaller power. Therefore, according to the present embodiment, it is possible to obtain a fit feeling when the user wears the hearing device 1, and it is possible to efficiently transmit the vibration from the transmission surface 15 to the cartilage of the auricle 21.
　図６Ａは、この状態を上方から見た概念図である。前述したように、挟持体３ｂの挟持体３ａとの対向面は、曲面で構成される。ここで、利用者によって耳介２１の形状は異なる。このため、利用者によって、効率よく振動が骨に伝わる位置が異なる。このため、挟持体３ａの位置を微調整する必要がある場合がある。しかし、耳介２１の背面に位置する挟持体３ｂの位置を自由に調整するのは困難であり、挟持体３ｂの位置は固定した状態で、挟持体３ａの位置を微調整できることが望ましい。 FIG. 6A is a conceptual diagram of this state viewed from above. As described above, the surface of the sandwiching body 3b facing the sandwiching body 3a is formed of a curved surface. Here, the shape of the auricle 21 differs depending on the user. Therefore, the position where the vibration is efficiently transmitted to the bone differs depending on the user. Therefore, it may be necessary to finely adjust the position of the holding body 3a. However, it is difficult to freely adjust the position of the holding body 3b located on the back surface of the pinna 21, and it is desirable that the position of the holding body 3a can be finely adjusted while the position of the holding body 3b is fixed.
　本実施形態では、挟持体３ｂの耳介２１との接触部（すなわち、挟持体３ａとの対向面）が曲面である。このため、図６Ｂ、図６Ｃに示すように、挟持体３ｂの位置（すなわち、挟持体３ｂと耳介２１との接触位置）は同じまま、挟持体３ｂを回転させることで、容易に、挟持体３ａの配置と角度の微調整が可能である。 In the present embodiment, the contact portion of the pinching body 3b with the pinna 21 (that is, the surface facing the pinching body 3a) is a curved surface. Therefore, as shown in FIGS. 6B and 6C, the pinching body 3b can be easily pinched by rotating the pinching body 3b while keeping the position of the pinching body 3b (that is, the contact position between the pinching body 3b and the pinna 21). The arrangement and angle of the body 3a can be finely adjusted.
　以上、本実施の形態によれば、連結部５が形状記憶合金製の芯材２３によって形成されるため、大きな変形によっても、連結部５が破損することが抑制される。また、芯材２３が、形状記憶合金製の管体であるため、内部に電線１３を配置しても、電線１３の損傷を抑制することができる。また、芯材２３が湾曲方向（変形方向）に対して潰れた偏平形状であるため、連結部５を容易に変形させることができる。この際、形状記憶合金製の芯材２３によって、利用者の耳介の適切な位置に適度な圧力で挟持体３ａを押圧することができる。また、長期にわたって、押圧力（保持力）が変化することがない。 As described above, according to the present embodiment, since the connecting portion 5 is formed by the core material 23 made of the shape memory alloy, it is possible to prevent the connecting portion 5 from being damaged even by a large deformation. Further, since the core material 23 is a tube body made of a shape memory alloy, damage to the electric wire 13 can be suppressed even if the electric wire 13 is arranged inside. Further, since the core material 23 has a flat shape collapsed with respect to the bending direction (deformation direction), the connecting portion 5 can be easily deformed. At this time, the core material 23 made of a shape memory alloy can press the holding body 3a to an appropriate position of the user's auricle with an appropriate pressure. In addition, the pressing force (holding force) does not change for a long period of time.
　また、挟持体３ａ、３ｂのそれぞれに、振動部７と、基板９及びバッテリー１１を分けて配置することで、一方の挟持体が大型化することを抑制することができる。特に、耳介２１の前面に配置される挟持体３ａには振動部７のみが収容されるため、挟持体３ｂと比較して小型化することができ、装着性がよく、見た目にも目立ちにくい。また、基板９及びバッテリー１１が収容される挟持体３ｂは、耳介２１の後ろ側に配置されるため目立ちにくく、装着性が良好である。 Further, by separately arranging the vibrating portion 7, the substrate 9, and the battery 11 in each of the holding bodies 3a and 3b, it is possible to prevent one of the holding bodies from becoming large. In particular, since only the vibrating portion 7 is housed in the holding body 3a arranged on the front surface of the pinna 21, the size can be reduced as compared with the holding body 3b, the wearability is good, and the appearance is not noticeable. .. Further, since the holding body 3b in which the substrate 9 and the battery 11 are housed is arranged behind the auricle 21, it is inconspicuous and has good wearability.
　また、弾性体であるアーム状の連結部５によって、伝達面１５を皮膚へ密着させることができるため、簡易な構造で、確実に振動を耳介２１の軟骨に伝達することができる。この際、連結部５と挟持体３ａ、３ｂとの接続部が、互いに遠い側に配置されるため、連結部５の長さを確保することができ、連結部５の変形能を高めることができる。また、連結部５の外周側の保護部材２５の動きを許容することで、挟持体３ａ、３ｂを開く方向に連結部５を変形させた際に、連結部５（保護部材２５）の破損等を抑制することができる。 Further, since the transmission surface 15 can be brought into close contact with the skin by the arm-shaped connecting portion 5 which is an elastic body, vibration can be reliably transmitted to the cartilage of the auricle 21 with a simple structure. At this time, since the connecting portions of the connecting portion 5 and the sandwiching bodies 3a and 3b are arranged on sides far from each other, the length of the connecting portion 5 can be secured and the deformability of the connecting portion 5 can be enhanced. can. Further, by allowing the protective member 25 on the outer peripheral side of the connecting portion 5 to move, the connecting portion 5 (protecting member 25) may be damaged when the connecting portion 5 is deformed in the direction of opening the sandwiching bodies 3a and 3b. Can be suppressed.
　また、挟持体３ｂの挟持体３ａとの対向面を曲面とすることで、耳介２１に取り付けた際に、挟持体３ｂを回転させて、挟持体３ｂと耳介２１との接触部を変えることなく、挟持体３ａの位置の微調整を容易に行うことができる。このため、利用者の耳介２１の形状等に対して、適切な位置に伝達面１５を配置することができる。 Further, by making the surface of the holding body 3b facing the holding body 3a a curved surface, when the holding body 3b is attached to the auricle 21, the holding body 3b is rotated to change the contact portion between the holding body 3b and the auricle 21. Fine adjustment of the position of the holding body 3a can be easily performed without this. Therefore, the transmission surface 15 can be arranged at an appropriate position with respect to the shape of the user's pinna 21 and the like.
　この際、挟持体３ｂが略円柱形状の部位を有し、略円柱形状の軸方向が、挟持体３ｂとの対向方向に対して略垂直に配置されれば、挟持体３ｂを耳介２１の後方に容易に配置することができる。 At this time, if the holding body 3b has a substantially cylindrical portion and the axial direction of the substantially cylindrical shape is arranged substantially perpendicular to the direction facing the holding body 3b, the holding body 3b is placed on the pinna 21. It can be easily placed behind.
　また、挟持体３ｂ又は挟持体３ａと電線１３との接続をコネクタ構造とすることで、組立が容易となる。また、連結部５の外周面に、湾曲形状に沿ってタッチスイッチ１７を配置することで、利用者は、ボタン位置などを探る必要がなく、より感覚的に聴音装置１を操作することができる。 Further, by forming the connection between the holding body 3b or the holding body 3a and the electric wire 13 as a connector structure, assembly becomes easy. Further, by arranging the touch switch 17 along the curved shape on the outer peripheral surface of the connecting portion 5, the user does not need to search for the button position and the like, and the listening device 1 can be operated more intuitively. ..
　次に、第２の実施形態について説明する。図７は、聴音装置１ａの使用状態を示す図である。なお、以下の説明において、聴音装置１と同様の構成については、図１～図５と同一の符号を付し、重複する説明を省略する。 Next, the second embodiment will be described. FIG. 7 is a diagram showing a usage state of the listening device 1a. In the following description, the same configurations as those of the listening device 1 are designated by the same reference numerals as those in FIGS. 1 to 5, and duplicated description will be omitted.
　聴音装置１ａは、一対の本体部３５同士が弾性部６ａで連結されて構成される。本体部３５は、例えば、挟持体３ａと同様の構成である。また、本体部３５には、振動部７ａが接続される。すなわち、本実施形態では、本体部３５と振動部７ａとが弾性部で接続されるのではなく、一対の本体部３５同士が、弾性部６ａで連結される。弾性部６ａの断面構造は、弾性部６（連結部５）と略同様である。また、振動部７ａは、挟持体３ａの構造と略同様である。 The listening device 1a is configured by connecting a pair of main body portions 35 to each other by an elastic portion 6a. The main body portion 35 has, for example, the same configuration as the sandwiching body 3a. Further, a vibrating portion 7a is connected to the main body portion 35. That is, in the present embodiment, the main body portion 35 and the vibrating portion 7a are not connected by the elastic portion, but the pair of main body portions 35 are connected by the elastic portion 6a. The cross-sectional structure of the elastic portion 6a is substantially the same as that of the elastic portion 6 (connecting portion 5). Further, the vibrating portion 7a has substantially the same structure as that of the sandwiching body 3a.
　第２の実施形態によれば、第１の実施形態と同様の効果を得ることができる。このように、形状記憶合金製の管体を何らかの構造を連結する弾性部として利用し、着脱の際の変形によって、弾性部や内部の電線の破損を抑制することが可能であれば、挟持体同士の連結部としての利用以外にも適用可能である。 According to the second embodiment, the same effect as that of the first embodiment can be obtained. In this way, if it is possible to use a tube made of shape memory alloy as an elastic part for connecting some structures and suppress damage to the elastic part and internal electric wires due to deformation at the time of attachment / detachment, a holding body. It can be applied to other than the use as a connecting part between each other.
　なお、聴音装置１、１ａとしては、外部の端末等から音響信号を無線で受信したが、挟持体３ｂにマイクを収容し、マイクで集音した音声情報を挟持体３ａの内部の振動部７へ電気信号として伝送することで、補聴器として利用することができる。また、無線受信部を基板９に配置して、補聴器としての利用と、音楽等のイヤホンとしての利用を切り替えられるようにしてもよい。 Although the hearing aids 1 and 1a wirelessly receive an acoustic signal from an external terminal or the like, the microphone is housed in the holding body 3b, and the sound information collected by the microphone is collected by the vibrating portion 7 inside the holding body 3a. It can be used as a hearing aid by transmitting it as an electric signal to. Further, the wireless receiving unit may be arranged on the substrate 9 so that the use as a hearing aid and the use as an earphone for music or the like can be switched.
　以上、添付図を参照しながら、本発明の実施の形態を説明したが、本発明の技術的範囲は、前述した実施の形態に左右されない。当業者であれば、特許請求の範囲に記載された技術的思想の範疇内において各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 Although the embodiments of the present invention have been described above with reference to the attached drawings, the technical scope of the present invention does not depend on the above-described embodiments. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the technical ideas described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs to.
１、１ａ………聴音装置
３ａ、３ｂ………挟持体
５………連結部
６、６ａ………弾性部
７、７ａ………振動部
８………制振材
９………基板
１１………バッテリー
１３………電線
１５………伝達面
１７………タッチスイッチ
２１………耳介
２３………芯材
２５………保護部材
２９………ピン
３１………シール
３３ａ、３３ｂ………コネクタ
３５………本体部 1, 1a ………… Hearing device 3a, 3b ………… Holding body 5 ………… Connecting part 6, 6a ………… Elastic part 7,7a ………… Vibration part 8 ………… Vibration damping material 9 ………… Substrate 11 ………… Battery 13 ………… Electric wire 15 ………… Transmission surface 17 ………… Touch switch 21 ………… Auricle 23 ………… Core material 25 ………… Protective member 29 ………… Pin 31 ………… Seal 33a, 33b ……… Connector 35 ……… Main body

Claims (6)

  1. 　骨伝導を利用した聴音装置であって、
    　基板とバッテリーとが収容される本体部と、音響電気信号を振動に変換して振動を出力する振動部と、前記振動部を利用者に押圧するための弾性部と、
    　を有し、
    　前記弾性部は、形状記憶合金製の管状の芯材と、前記芯材の内部に配置された電線とを有することを特徴とする聴音装置。     It is a hearing device that uses bone conduction.
    A main body that houses the board and battery, a vibrating section that converts acoustic electrical signals into vibration and outputs vibration, and an elastic section that presses the vibrating section against the user.
    Have,
    The elastic portion is a sound-listening device having a tubular core material made of a shape memory alloy and an electric wire arranged inside the core material.
  2. 　耳を表側と裏側から挟み込む一対の挟持体を有し、前記弾性部は、一対の前記挟持体同士を連結する連結部であり、
    　前記連結部によって、前記挟持体を耳に装着可能であり、
    　前記振動部は、一方の前記挟持体に収容され、前記本体部は、他方の前記挟持体に収容され、
    　前記一方の挟持体には、耳の表側または耳の裏側に接触して振動を伝達する伝達面が設けられ、
    　前記電線によって、前記他方の挟持体から前記一方の挟持体の内部の前記振動部へ電気信号が伝送されることを特徴とする請求項１記載の聴音装置。     It has a pair of holding bodies that sandwich the ears from the front side and the back side, and the elastic portion is a connecting portion that connects the pair of the holding bodies to each other.
    With the connecting portion, the holding body can be attached to the ear.
    The vibrating portion is housed in one of the holding bodies, and the main body is housed in the other holding body.
    The one holding body is provided with a transmission surface that contacts the front side of the ear or the back side of the ear to transmit vibration.
    The listening device according to claim 1, wherein an electric signal is transmitted from the other holding body to the vibrating portion inside the one holding body by the electric wire.
  3. 　前記連結部は、それぞれの前記挟持体を湾曲形状で連結し、湾曲形状の外周面側において、湾曲形状に沿ってタッチスイッチが配置され、前記タッチスイッチによって聴音装置の操作が可能であることを特徴とする請求項２に記載の聴音装置。 The connecting portion connects each of the holding bodies in a curved shape, and a touch switch is arranged along the curved shape on the outer peripheral surface side of the curved shape, and the sound listening device can be operated by the touch switch. The listening device according to claim 2.
  4. 　前記芯材の外周面の少なくとも一部が、樹脂で被覆されることを特徴とする請求項１記載の聴音装置。 The listening device according to claim 1, wherein at least a part of the outer peripheral surface of the core material is covered with a resin.
  5. 　前記電線と前記振動部とは、コネクタ構造によって接続されることを特徴とする請求項１記載の聴音装置。 The listening device according to claim 1, wherein the electric wire and the vibrating portion are connected by a connector structure.
  6. 　前記弾性部は湾曲形状を有し、前記芯材の断面形状は、湾曲方向につぶれた偏平形状であることを特徴とする請求項１記載の聴音装置。 The listening device according to claim 1, wherein the elastic portion has a curved shape, and the cross-sectional shape of the core material is a flat shape collapsed in the bending direction.
PCT/JP2021/032461 2020-09-11 2021-09-03 Listening device WO2022054714A1 (en)

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JP2020153138A JP7204224B2 (en) 2020-09-11 2020-09-11 hearing device
JP2020-153138 2020-09-11

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6386997A (en) * 1986-09-30 1988-04-18 Sanwa Denko Kk Headphone
JP2005117098A (en) * 2003-10-02 2005-04-28 Sony Ericsson Mobilecommunications Japan Inc Mobile phone terminal
JP2012244515A (en) * 2011-05-23 2012-12-10 Jvc Kenwood Corp Ear-hook hanger, earphone, and manufacturing method of the earphone
JP2013115800A (en) * 2011-12-01 2013-06-10 Goldendance Co Ltd Ear-hooked hearing aid
JP2013153530A (en) * 2007-01-06 2013-08-08 Apple Inc Headset connector to selectively route signals in accordance with determined orientation of engaging connector
JP2017135446A (en) * 2016-01-25 2017-08-03 三光金型株式会社 Call transmitting/receiving device
JP2020113890A (en) * 2019-01-11 2020-07-27 ＢｏＣｏ株式会社 Listening device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6386997A (en) * 1986-09-30 1988-04-18 Sanwa Denko Kk Headphone
JP2005117098A (en) * 2003-10-02 2005-04-28 Sony Ericsson Mobilecommunications Japan Inc Mobile phone terminal
JP2013153530A (en) * 2007-01-06 2013-08-08 Apple Inc Headset connector to selectively route signals in accordance with determined orientation of engaging connector
JP2012244515A (en) * 2011-05-23 2012-12-10 Jvc Kenwood Corp Ear-hook hanger, earphone, and manufacturing method of the earphone
JP2013115800A (en) * 2011-12-01 2013-06-10 Goldendance Co Ltd Ear-hooked hearing aid
JP2017135446A (en) * 2016-01-25 2017-08-03 三光金型株式会社 Call transmitting/receiving device
JP2020113890A (en) * 2019-01-11 2020-07-27 ＢｏＣｏ株式会社 Listening device

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JP7204224B2 (en) 2023-01-16
JP2022047311A (en) 2022-03-24

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