JP2016063276A - Cartilage conduction hearing aid, cartilage conduction speaker cover and cartilage conduction speaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cartilage conduction hearing aid capable of contributing to improvement of cartilage conductivity and a wearing feeling, a cartilage conduction speaker cover and a cartilage conduction speaker.SOLUTION: A cartilage conduction hearing aid 1 includes: a cartilage conduction speaker 2 including a vibration surface 21 which is brought into contact with an ear concha cavity wall H in the case of ear concha cartilage conduction, and a housing 22 that is formed to extend from the vicinity of paired helixes F to an external auditory meatus B when the vibration surface 21 is brought into contact with the ear concha cavity wall H; and a cartilage conduction speaker cover 3 including a holding part 33 for holding the cartilage conduction speaker 2, a front face part 33a of the holding part 33 that is positioned at an opposite side of the vibration surface 21 when the cartilage conduction speaker 2 is held by the holding part 33, and a first protrusion 31 which extends in a direction from the front face part 33a of the holding part 33 through a gap between a tragus C and an opposite tragus D to an inter-tragus incisure E when the vibration surface 21 is brought into contact with the ear concha cavity wall H, and is brought into contact with an inner surface of the tragus C, an inner surface of the opposite tragus D and a surface of the inter-tragus incisure E.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cartilage conduction hearing aid, a cartilage conduction speaker cover, and a cartilage conduction speaker, and more particularly to a cartilage conduction hearing aid that can be suitably used for a cartilage conduction speaker that conducts cartilage conduction by bringing a vibration surface into contact with the concha cavity wall. The present invention relates to a conductive speaker cover and a cartilage conductive speaker.

  Conventional cartilage conduction hearing aids include, for example, an arcuate hearing aid body attached to the rear part of the auricle, a cartilage conduction speaker abutting near the ear canal opening, and a drive signal output from the hearing aid body as a cartilage conduction speaker. A covered electric wire for transmission to

JP 2010-192975 A

  However, in the conventional cartilage conduction hearing aid, since the cartilage conduction speaker has the same circular shape as a general earphone, the cartilage conduction speaker can be suitably brought into contact with a specific part in the auricle that easily conducts to cartilage. It was difficult. As a result, the conventional cartilage conduction hearing aid has a problem that it is difficult to improve the cartilage conductivity.

  In addition, in conventional cartilage conduction hearing aids, the cross-sectional shape of the cartilage conduction speaker may be inconsistent with the user's ear shape, and the cartilage conduction speaker may easily come off or rotate within the auricle. There is a problem in that the user may feel uncomfortable, such as being trapped or closing the ear canal opening.

  Therefore, the present invention has been made in view of these points, and it is an object of the present invention to provide a cartilage conduction hearing aid, a cartilage conduction speaker cover, and a cartilage conduction speaker that can contribute to improvement of cartilage conductivity and wearing feeling. The purpose is.

  (1) In order to achieve the above-described object, the cartilage conduction hearing aid of the present invention includes a vibrating surface that is brought into contact with the concha cavity wall during auricular cartilage conduction, and the vibrating surface is in contact with the concha cavity wall. A cartilage conduction speaker having a shape extending from the vicinity of the antiaural ring to the ear canal mouth, a holding part for holding the cartilage conduction speaker, and a vibration surface when the cartilage conduction speaker is held by the holding part. When the front part of the holding part located on the opposite side and the vibration surface come into contact with the concha cavity wall, the front part of the holding part passes between the tragus and the anti-tragus and extends in the direction toward the notch. And a cartilage conduction speaker cover having a first protrusion that contacts the inner surface of the tragus, the inner surface of the tragus, and the surface of the notch.

  Accordingly, in the cartilage conduction hearing aid of the present invention, the first protrusion receives a repulsive force from the inner surface of the tragus and the inner surface of the tragus, and the repulsive force causes the vibration surface to pass through the front portion of the holding portion. Can be adhered to. In addition, the user of the cartilage conduction hearing aid of the present invention can hold the cartilage conduction speaker at a position in contact with the concha cavity wall and the ear canal opening.

  (2) Moreover, in the cartilage conduction hearing aid of the present invention, the first projecting portion extends in a direction from the front portion of the holding portion toward the opposite side of the vibration surface and the intercostal notch when the cartilage conduction speaker is held by the holding portion. It is preferable to extend in a parabolic shape.

  Thereby, the repulsive force which the 1st projection part received from the tragus inner surface and the inner surface of the tragus can be efficiently transmitted to the vibration surface.

  (3) In the cartilage conduction hearing aid of the present invention, the cartilage conduction speaker cover includes a rear end surface portion of the holding portion that is located on the opposite side of the ear canal mouth when the cartilage conduction speaker is held by the holding portion, It is preferable to further include a second projecting portion that extends in a direction from the rear end surface portion toward the ear ring and that contacts at least the inner surface of the ear ring and the inner surface of the ear ring.

  As a result, the cartilage conduction hearing aid of the present invention prevents the cartilage conduction speaker from rotating or dropping unexpectedly at the position when the cartilage conduction speaker is held at a position in contact with the concha cavity wall and the ear canal opening. can do.

  (4) Moreover, in the cartilage conduction hearing aid of the present invention, it is preferable that the second projecting portion bends and extends in a direction from the lower side of the earring to the upper side of the earring along the inner surface of the earring.

  As a result, the second projecting portion receives a repulsive force from at least the inner surface of the earring, and the repelling force presses the first projecting portion against the inner surface of the tragus. The repulsive force received from the inner surface of the pearl and the inner surface of the tragus can be increased. In addition, the user of the cartilage conduction hearing aid of the present invention can stably hold the cartilage conduction speaker at a position in contact with the concha cavity wall and the ear canal opening.

  (5) Further, in the cartilage conduction hearing aid of the present invention, at least the first protrusion and the second protrusion of the holding part, the first protrusion, and the second protrusion are made of soft synthetic resin, soft synthetic rubber, elastomer, and the like. It is preferable that it is made of a soft elastic material.

  Thereby, the cartilage conduction hearing aid of the present invention can suppress the discomfort experienced by the user wearing the cartilage conduction speaker holding the cartilage conduction speaker.

  (6) Moreover, in the cartilage conduction hearing aid of the present invention, it is preferable that the first protrusion and the second protrusion are configured to become narrower from the root toward the tip.

  As a result, the cartilage conduction hearing aid of the present invention is based on the fishing rod effect, and as the amount of elastic deformation of the first protrusion and the second protrusion in contact with the tragus or the auricle increases, the first protrusion and The repulsive force received by the second protrusion can be increased.

  (7) Further, in the cartilage conduction hearing aid of the present invention, the cartilage conduction speaker is configured to have a shape that partially opens the ear canal opening, and the holding part has the cartilage conduction speaker mounted on the concha cavity wall. It is sometimes preferred to be configured in a shape that partially opens the ear canal opening.

  As a result, the cartilage conduction hearing aid of the present invention can suppress the feeling of obstruction to the external auditory canal when the cartilage conduction speaker and the cartilage conduction speaker cover are attached to the concha cavity.

  (8) Further, in order to achieve the above-described object, the cartilage conduction speaker cover of the present invention has a vibration surface that is brought into contact with the concha cavity wall at the time of auricular cartilage conduction and extends from the vicinity of the anterior ring to the ear canal opening. A holding part for holding the cartilage conduction speaker configured in a shape; a front part of the holding part located on the opposite side of the vibration surface when the cartilage conduction speaker is held by the holding part; And extends from the front part of the holding part to the direction between the tragus and the antitragus, and toward the intercusp notch, and the inner surface of the tragus, the inner surface of the tragus, and the internotch surface A first protrusion that contacts the first projection.

  Thereby, in the cartilage conduction speaker cover of the present invention, the first protrusion receives a repulsive force from the inner surface of the tragus and the inner surface of the tragus, and the repulsive force causes the vibration surface to pass through the front portion of the holding portion. It can be in close contact with the wall. In addition, the user of the cartilage conduction speaker cover of the present invention can hold the cartilage conduction speaker at a position in contact with the concha cavity wall and the ear canal opening.

  (9) In order to achieve the above-described object, the cartilage conduction speaker according to the present invention includes a vibrating surface that is brought into contact with the concha cavity wall during auricular cartilage conduction, and the vibrating surface is in contact with the concha cavity wall. The main body of the housing is configured to extend from the concha cavity wall to the ear canal mouth, and when passing through the concha cavity, it passes between the tragus and the antitragus from the front of the holding section. And a housing having a first projection that extends in a direction toward the notch and that contacts the inner surface of the tragus, the inner surface of the tragus, and the surface of the notch. .

  Thereby, in the cartilage conduction speaker of the present invention, the first protrusion receives a repulsive force from the inner surface of the tragus and the inner surface of the tragus, and the repulsive force causes the vibration surface to pass through the front portion of the holding portion. Can be adhered to. In addition, the user of the cartilage conduction speaker of the present invention can hold the cartilage conduction speaker at a position in contact with the concha cavity wall and the ear canal opening.

  According to the cartilage conduction hearing aid, the cartilage conduction speaker cover, and the cartilage conduction speaker of the present invention, the repulsive force received by the first projecting portion causes the vibration surface to be in close contact with the concha cavity wall via the front portion of the holding portion, The cartilage conduction speaker can be held at a position where it comes into contact with the turbinate cavity wall and the ear canal opening, and therefore, it is possible to contribute to improvement of cartilage conductivity and a feeling of wearing.

It is a perspective view which shows the cartilage conduction speaker of this embodiment and the cartilage conduction speaker cover of this embodiment which are provided in the cartilage conduction hearing aid of this embodiment. It is a front view which shows the cartilage conduction speaker of this embodiment with which the cartilage conduction hearing aid of this embodiment is equipped, and the cartilage conduction speaker cover of this embodiment. It is a rear view which shows the cartilage conduction speaker of this embodiment with which the cartilage conduction hearing aid of this embodiment is equipped, and the cartilage conduction speaker cover of this embodiment. It is a right view which shows the cartilage conduction speaker of this embodiment with which the cartilage conduction hearing aid of this embodiment is equipped, and the cartilage conduction speaker cover of this embodiment. It is a left view which shows the cartilage conduction speaker of this embodiment with which the cartilage conduction hearing aid of this embodiment is equipped, and the cartilage conduction speaker cover of this embodiment. It is a top view which shows the cartilage conduction speaker of this embodiment with which the cartilage conduction hearing aid of this embodiment is equipped, and the cartilage conduction speaker cover of this embodiment. It is a bottom view which shows the cartilage conduction speaker of this embodiment and the cartilage conduction speaker cover of this embodiment with which the cartilage conduction hearing aid of this embodiment is equipped. It is a perspective view which shows the cartilage conduction hearing aid main body with which the cartilage conduction hearing aid of this embodiment is equipped, and the covered electric wire. It is a mounting | wearing figure which shows the state with which the cartilage conduction speaker of this embodiment and the cartilage conduction speaker cover of this embodiment were mounted | worn in the concha cavity. It is a perspective view which shows the cartilage conduction speaker of this embodiment. FIG. 10A is a front perspective view showing the cartilage conduction speaker of the present embodiment. FIG. 10B is a rear perspective view showing the cartilage conduction speaker of the present embodiment. It is a back perspective view which shows the cartilage conduction speaker cover of this embodiment. It is explanatory drawing which shows each name of an auricle.

  Hereinafter, the cartilage conduction hearing aid, the cartilage conduction speaker cover, and the cartilage conduction speaker of this embodiment will be described with reference to the drawings.

[Figure Description]
FIG. 1 is a perspective view showing the cartilage conduction speaker of the present embodiment and the cartilage conduction speaker cover of the present embodiment provided in the cartilage conduction hearing aid of the present embodiment. FIG. 2 is a front view showing the cartilage conduction speaker of the present embodiment and the cartilage conduction speaker cover of the present embodiment provided in the cartilage conduction hearing aid of the present embodiment. FIG. 3 is a rear view showing the cartilage conduction speaker of the present embodiment and the cartilage conduction speaker cover of the present embodiment provided in the cartilage conduction hearing aid of the present embodiment. FIG. 4 is a right side view showing the cartilage conduction speaker of the present embodiment and the cartilage conduction speaker cover of the present embodiment provided in the cartilage conduction hearing aid of the present embodiment. FIG. 5 is a left side view showing the cartilage conduction speaker of this embodiment and the cartilage conduction speaker cover of this embodiment provided in the cartilage conduction hearing aid of this embodiment. FIG. 6 is a plan view showing the cartilage conduction speaker of the present embodiment and the cartilage conduction speaker cover of the present embodiment provided in the cartilage conduction hearing aid of the present embodiment. FIG. 7 is a bottom view showing the cartilage conduction speaker of the present embodiment and the cartilage conduction speaker cover of the present embodiment provided in the cartilage conduction hearing aid of the present embodiment. FIG. 8 is a perspective view showing a hearing aid main body and a covered electric wire provided in the cartilage conduction hearing aid of the present embodiment. FIG. 9 is a mounting diagram illustrating a state where the cartilage conduction speaker of the present embodiment and the cartilage conduction speaker cover of the present embodiment are mounted on the concha concavity. FIG. 10 is a perspective view showing the cartilage conduction speaker of the present embodiment. FIG. 10A is a front perspective view showing the cartilage conduction speaker of the present embodiment. FIG. 10B is a rear perspective view showing the cartilage conduction speaker of the present embodiment. FIG. 11 is a rear perspective view showing the cartilage conduction speaker cover of the present embodiment. FIG. 12 is an explanatory diagram showing names of the auricles.

[1] Configuration of Cartilage Conduction Hearing Aid 1 As shown in FIGS. 1 to 11, the cartilage conduction hearing aid 1 of the present embodiment includes a cartilage conduction speaker 2, a cartilage conduction speaker cover 3, a hearing aid body 4, and a covered electric wire 5. And comprising.

(1-1) Cartilage conduction speaker 2
As shown in FIGS. 9 and 10, the cartilage conduction speaker 2 of the present embodiment includes a vibration surface 21, a housing 22, and a cartilage conduction driver.

(1-1-1) Vibrating surface 21
The vibration surface 21 is brought into contact with the concha cavity wall H during auricular cartilage conduction. Here, in this specification, the concha cavity wall H refers to the skin wall (for example, the front wall in the front view of the auricle A as shown in FIG. 12 among the skin walls facing the concha cavity I (for example, The shaded area in FIG. In order to improve the cartilage conductivity, it is preferable that the vibration surface 21 is in contact with the surface of the concha cavity wall H close to the ear canal opening B.

  Further, the vibration surface 21 is a substantially elliptical shape whose longitudinal direction is a direction (hereinafter, referred to as “front-rear direction”) extending from the vicinity of the antiaural ring F to the ear canal mouth B when the vibration surface 21 contacts the concha cavity wall H. The shape or the substantially rectangular shape is configured such that the width from the ear ring leg G toward the intercrocus notch E (hereinafter referred to as “vertical direction”) becomes narrower from the ear canal mouth B toward the antiaural ring F. It is preferable. The vibration surface 21 is preferably a smooth convex curved surface along the concha cavity wall H in order to improve the cartilage conductivity.

(1-1-2) Case 22
The housing 22 has a substantially elliptical column shape or a substantially quadrangular prism shape whose longitudinal direction is the front-rear direction when the vibration surface 21 contacts the concha cavity wall H, and the width in the vertical direction extends from the ear canal B to the ear ring. It is preferable to be configured in a shape that narrows toward F.

  The housing 22 of the cartilage conduction speaker 2 is preferably configured to have a shape that partially opens the ear canal opening B. In the present embodiment, the width in the vertical direction of the housing 22 is smaller than the diameter of the ear canal mouth B.

  The housing 22 may be separate from or integrated with the vibration surface 21.

(1-1-3) Cartilage conduction driver The cartilage conduction driver is built in the cartilage conduction speaker 2 and is surrounded by the vibration surface 21 and the housing 22.

  The cartilage conduction driver is an electromagnetic electromechanical transducer having, for example, a yoke, a voice coil, a magnet, and other similar components. In addition, the cartilage conduction driver outputs the external sound collected by the hearing aid main body 4 to the auditory organ as the cartilage conduction sound and the air conduction sound by outputting to the cartilage conduction speaker 2 through the covered electric wire 5.

(1-2) Cartilage conduction speaker cover 3
The cartilage conduction speaker cover 3 is preferably constructed using a soft elastic material such as soft synthetic resin, soft synthetic rubber, elastomer, and the like.

  As shown in FIGS. 1 to 11, the cartilage conduction speaker cover 3 includes a holding portion 33 and a first protrusion 31. The cartilage conduction speaker cover 3 preferably further includes a second protrusion 32.

(1-2-1) Holding unit 33
The holding part 33 is configured to cover a portion of the cartilage conduction speaker 2 excluding the vibration surface 21. In the present embodiment, the holding portion 33 is determined based on the front portion 33a that is located on the opposite side of the vibration surface 21 when the cartilage conduction speaker 2 is held by the holding portion 33, and the front-rear direction and the vertical direction described above. The front end surface portion 33b, the rear end surface portion 33c, the upper end surface portion 33d, and the lower end surface portion 33e are provided.

  The holding part 33 is made of a soft elastic material. Accordingly, the holding unit 33 holds the side surface of the cartilage conduction speaker 2 and the opposite surface 23 of the vibration surface 21 by the elastic pinching force of the holding unit 33.

  Moreover, it is preferable that the holding part 33 is configured in a shape that partially opens the ear canal opening B when the cartilage conduction speaker 2 is mounted on the concha cavity wall H. In the present embodiment, the vertical width of the holding portion 33 is smaller than the diameter of the ear canal mouth B according to the size of the housing 22 of the cartilage conduction speaker 2.

(1-2-2) First protrusion 31
The first projecting portion 31 passes between the tragus C and the tragus D from the front portion 33a of the holding portion 33 when the vibration surface 21 comes into contact with the concha cavity wall H, and heads toward the notch E. It extends in the direction. Further, when the vibration surface 21 contacts the concha cavity wall H, the first projecting portion 31 contacts the inner surface of the tragus C, the inner surface of the tragus D, and the surface of the notch E.

  When the cartilage conduction speaker 2 is held by the holding portion 33, the first protruding portion 31 is parabolically curved in a direction from the front portion 33 a of the holding portion 33 to the opposite side of the vibration surface 21 and the notch E. It is preferable to extend. This is because when the first protrusion 31 comes into contact with the inner surface of the tragus C, the inner surface of the tragus D, and the surface of the notch E, the repulsive force is changed to the contact force between the vibration surface 21 and the concha cavity wall H. This is because it can be used. Then, positional deviation of the cartilage conduction speaker 2 is prevented.

  Moreover, it is preferable that the 1st projection part 31 is comprised in the shape which becomes thin toward the front-end | tip from the base.

  Moreover, the 1st projection part 31 is the groove-shaped pressure adjustment part which goes to the notch E from the front part 33a of the holding | maintenance part 33 between the contact part 31a of the tragus C and the contact part 31b of the anti-tragus D. 34 may be included. This is because when the first protrusion 31 contacts the inner surface of the tragus C, the inner surface of the tragus D, and the surface of the notch E, the repulsive force is too strong and the inner surface of the tragus C and the inner surface of the tragus D are in pain. This is to prevent the occurrence of.

(1-2-3) Second protrusion 32
When the cartilage conduction speaker 2 is held by the holding portion 33, the second protruding portion 32 extends in a direction from the rear end surface portion 33 c of the holding portion 33 toward the antiaural ring F. Further, when the vibration surface 21 comes into contact with the concha cavity wall H, the second protrusion 32 comes into contact with at least the inner surface of the ear ring F among the inner surface of the antitragus D and the inner surface of the ear ring F. As a result, when the second protrusion 32 comes into contact with the inner surface of the antitragus D and the inner surface of the anti-annular ring F, the repulsive force can be used for the contact force between the vibrating surface 21 and the concha cavity wall H. The speaker 2 is stably disposed on the concha cavity wall H.

  Moreover, it is preferable that the 2nd protrusion part 32 is curving and extended in the direction which goes to the upper direction of the earring F from the lower side of the earring F along the inner surface of the earring F. Moreover, it is preferable that the 2nd projection part 32 is comprised by the curved substantially cone shape which becomes thin toward the front-end | tip from the base. In this case, in order to control the bending direction and the repulsive force in a desired direction, it is preferable that the second protrusion 32 is configured to be bent along the inner surface of the antiaural ring F.

(1-3) Hearing aid body 4
Since the hearing aid main body 4 is attached to the rear part of the pinna A shown in FIG. The hearing aid body 4 includes components necessary for the body of the digital cartilage conduction hearing aid 1 such as a microphone, an amplifier, an A / D converter, a control circuit, a cartilage conduction circuit, and an audio signal output circuit, as in the conventional case.

(1-4) Coated wire 5
The covered wire 5 transmits the signal output from the hearing aid body 4 to the cartilage conduction speaker 2 as shown in FIGS. 1 and 8. The covered electric wire 5 includes an electric wire and an insulating covering portion as in the conventional case. In this embodiment, since the hearing aid main body 4 and the cartilage conduction speaker 2 are connected by wire, the covered electric wire 5 is used. Therefore, when the hearing aid main body 4 and the cartilage conduction speaker 2 are wirelessly connected by radio waves, the covered electric wire 5 is unnecessary.

[2] Effects Next, effects of the cartilage conduction hearing aid 1, the cartilage conduction speaker cover 3, and the cartilage conduction speaker 2 of the present embodiment will be described.

  (1) The cartilage conduction hearing aid 1 according to the present embodiment has a vibrating surface 21 that is brought into contact with the auricular cavity wall H during auricular cartilage conduction, and the vibration surface 21 that is in contact with the auricular cavity wall H. A cartilage conduction speaker 2 having a casing 22 configured to extend from the vicinity of the ear ring F to the ear canal mouth B, a holding unit 33 that holds the cartilage conduction speaker 2, and the cartilage conduction speaker 2 are held by the holding unit 33. The front part 33a of the holding part 33 located on the opposite side of the vibration surface 21 when the vibration surface 21 comes into contact with the concha cavity wall H, and the tragus C and the anti tragus from the front part 33a of the holding part 33. A cartilage having a first protrusion 31 that passes between D and extends in a direction toward the intercusp notch E, and that contacts the inner surface of the tragus C, the inner surface of the tragus D, and the surface of the intercrocus notch E. And a conductive speaker cover 3.

  The cartilage conduction speaker 2 is held in the concha cavity I in contact with the concha cavity wall H. Further, the first protrusion 31 of the cartilage conduction speaker cover 3 is repelled from the inner surface of the tragus C and the inner surface of the tragus D against the vibration surface 21 by contacting the inner surface of the tragus C and the inner surface of the tragus D. Is given. The stronger the repulsive force, the stronger the force with which the vibration surface 21 comes into contact with the concha cavity wall H, so that the bone conductivity is improved. The first protrusion 31 contacts the inner surface of the tragus C, the inner surface of the tragus D, and the notch E, so that the cartilage conduction speaker 2 held by the cartilage conduction speaker cover 3 is connected to the concha cavity wall H. Suppresses rotation inside.

  That is, in the cartilage conduction hearing aid 1 of this embodiment, the first protrusion 31 receives a repulsive force from the inner surface of the tragus C and the inner surface of the tragus D, and the repulsive force is vibrated through the front portion 33 a of the holding portion 33. 21 can be brought into close contact with the concha cavity wall H. In addition, the user of the cartilage conduction hearing aid 1 of the present embodiment can hold the cartilage conduction speaker 2 at a position in contact with the concha cavity wall H and the ear canal opening B.

  (2) In the cartilage conduction hearing aid 1 of the present embodiment, the first protrusion 31 is located on the opposite side of the vibration surface 21 from the front surface 33a of the holding portion 33 when the cartilage conduction speaker 2 is held by the holding portion 33. And it is preferable that it extends in a parabolic shape in the direction toward the notch E.

  The repulsive force that the first protrusion 31 receives from the inner surface of the tragus C and the inner surface of the tragus D can be transmitted to the front portion 33 a of the holding portion 33. Since the front portion 33a of the holding portion 33 is located on the opposite side of the vibration surface 21, the vibration surface 21 is placed in the conchae cavity I as the force applied vertically to the repulsive force received by the front portion 33a of the holding portion 33 increases. Increases the force of contact.

  That is, the repulsive force received by the first protrusion 31 from the inner surface of the tragus C and the inner surface of the tragus D can be efficiently transmitted to the vibration surface 21.

  (3) Moreover, in the cartilage conduction hearing aid 1 of the present embodiment, the cartilage conduction speaker cover 3 is located behind the holding part 33 located on the opposite side of the ear canal opening B when the cartilage conduction speaker 2 is held by the holding part 33. A second protrusion that extends from the end surface portion 33c and the rear end surface portion 33c of the holding portion 33 in the direction toward the earring F, and that contacts at least the inner surface of the earring F and the inner surface of the earring F. It is preferable to further include the portion 32.

  The second protrusion 32 is in contact with at least the inner surface of the earring F among the inner surface of the antitragus D and the inner surface of the earring F, thereby giving a repulsive force to the vibrating surface 21 and the tragus C from at least the inner surface of the earring F. It is done. Further, the second projecting portion 32 largely prevents the cartilage conduction speaker 2 held by the cartilage conduction speaker cover 3 from rotating within the concha cavity wall H by contacting the inner surface of the anti-auricular ring F. To contribute.

  That is, in the cartilage conduction hearing aid 1 according to the present embodiment, when the cartilage conduction speaker 2 is held at a position where the cartilage conduction speaker 2 is in contact with the concha cavity wall H and the ear canal opening B, the cartilage conduction speaker 2 is unexpectedly rotated or dropped at the position. Can be prevented.

  (4) Further, in the cartilage conduction hearing aid 1 of the present embodiment, the second protrusion 32 is curved and extended in a direction from the lower side of the earring F to the upper side of the earring F along the inner surface of the earring F. Is preferable.

  The force with which the second protrusion 32 pushes the first protrusion 31 toward the inner surface of the tragus C becomes stronger as the second protrusion 32 extends along the inner surface of the anti-aural ring F.

  Thereby, the second protrusion 32 receives a repulsive force from at least the inner surface of the antifoliation F among the inner surface of the antitragus D and the inner surface of the antifoliate F, and the repulsive force presses the first protrusion 31 against the inner surface of the tragus C. The repulsive force that the first protrusion 31 receives from the inner surface of the tragus C and the inner surface of the tragus D can be increased. In addition, the user of the cartilage conduction hearing aid 1 of the present embodiment can stably hold the cartilage conduction speaker 2 at a position in contact with the concha cavity wall H and the ear canal opening B.

  (5) In the cartilage conduction hearing aid 1 of the present embodiment, at least the first protrusion 31 and the second protrusion 32 of the holding part 33, the first protrusion 31, and the second protrusion 32 are made of soft synthetic resin, It is preferably made of soft synthetic rubber, elastomer or other soft elastic material.

  Thereby, the cartilage conduction hearing aid 1 of this embodiment can suppress the discomfort experienced by the user wearing the cartilage conduction speaker 2 that holds the cartilage conduction speaker 2.

  (6) Moreover, in the cartilage conduction hearing aid 1 of this embodiment, it is preferable that the 1st projection part 31 and the 2nd projection part 32 are comprised in the shape which becomes thin toward the front-end | tip from the root.

  Thereby, the cartilage conduction hearing aid 1 according to the present embodiment increases the amount of elastic deformation of the first protrusion 31 and the second protrusion 32 in contact with the tragus C, the pinna A ring, or the like based on the fishing rod effect. The repulsive force received by the first protrusion 31 and the second protrusion 32 can be increased.

  (7) Further, in the cartilage conduction hearing aid 1 of the present embodiment, the cartilage conduction speaker 2 is configured to have a shape that partially opens the ear canal opening B, and the holding portion 33 includes the cartilage conduction speaker 2 that is connected to the concha. It is preferable that the external ear canal B be configured to partially open when attached to the cavity wall H.

  Thereby, the cartilage conduction hearing aid 1 according to the present embodiment can suppress giving a feeling of obstruction to the external auditory canal when the cartilage conduction speaker 2 and the cartilage conduction speaker cover 3 are attached to the concha cavity I.

  (8) In addition, the cartilage conduction speaker cover 3 of the present embodiment has a vibration surface 21 to be brought into contact with the concha cavity wall H during the auricular cartilage conduction and has a shape extending from the vicinity of the antiaural ring F to the ear canal mouth B. A holding part 33 for holding the configured cartilage conduction speaker 2, a front part 33a of the holding part 33 located on the opposite side of the vibration surface 21 when the cartilage conduction speaker 2 is held by the holding part 33, and a cartilage conduction speaker. 2 extends from the front portion 33a of the holding portion 33 in the direction of the tragus C and the antitragus D to the intercusp notch E when mounted on the concha cavity I. A first protrusion 31 in contact with the inner surface of the tragus C, the inner surface of the tragus D, and the surface of the notch E.

  Thereby, in the cartilage conduction speaker cover 3 of the present embodiment, the first projecting portion 31 receives a repulsive force from the inner surface of the tragus C and the inner surface of the tragus D, and the repulsive force passes through the front portion 33 a of the holding portion 33. The vibration surface 21 can be brought into close contact with the concha cavity wall H. In addition, the user of the cartilage conduction speaker cover 3 according to the present embodiment can hold the cartilage conduction speaker 2 at a position in contact with the concha cavity wall H and the ear canal opening B.

  That is, according to the cartilage conduction hearing aid 1, the cartilage conduction speaker cover 3, and the cartilage conduction speaker 2 of the present embodiment, the repulsive force received by the first projecting portion 31 causes the vibration surface 21 to pass through the front portion 33 a of the holding portion 33. The cartilage conduction speaker 2 can be held in a position in close contact with the concha cavity wall H, or in contact with the concha cavity wall and the ear canal opening B, thereby contributing to improvement of cartilage conductivity and wearing feeling. There is an effect that can be.

[Other Embodiments]
In addition, this invention is not limited to embodiment mentioned above etc., A various change is possible as needed.

  For example, the cartilage conduction hearing aid of the present embodiment is formed to match the right ear. When the cartilage conduction hearing aid of the present embodiment is used for the left ear, for example, the shape of the cartilage conduction hearing aid of the present embodiment may be symmetrical.

  In this embodiment, the cartilage conduction speaker and the cartilage conduction speaker cover are separate bodies. However, in other embodiments, the cartilage conduction speaker and the cartilage conduction speaker cover may be integrated.

  (9) That is, the cartilage conduction speaker according to another embodiment includes a vibration surface that is brought into contact with the concha cavity wall during auricular cartilage conduction, and the vicinity of the anterior ring when the vibration surface comes into contact with the concha cavity wall. The main body of the housing is configured to extend from the ear canal to the ear canal, and when the vibration surface comes into contact with the concha cavity wall, it passes between the tragus and the antitragus from the opposite surface of the vibration surface, and the notch between the tragus And a housing having a first protrusion that contacts the inner surface of the tragus, the inner surface of the tragus, and the surface of the notch, and the vibration surface comes into contact with the concha cavity wall A rear end surface portion of the housing main body located on the opposite side of the ear canal mouth, and a direction extending from the rear end surface portion of the housing main body portion toward the ear ring, and the inner surface of the antitragus and the inner surface of the ear ring And a second protrusion that contacts at least the inner surface of the antiaural ring.

  As a result, in the cartilage conduction speaker of another embodiment, the first protrusion receives a repulsive force from the inner surface of the tragus and the inner surface of the tragus, and the repulsive force passes the vibration surface through the front portion of the holding portion. It can be closely attached to the cavity wall. In addition, the user of the cartilage conduction speaker according to another embodiment can hold the cartilage conduction speaker at a position in contact with the concha cavity wall and the ear canal opening. Further, in the cartilage conduction hearing aid according to another embodiment, when the cartilage conduction speaker is held at a position in contact with the concha cavity wall and the ear canal opening, the cartilage conduction speaker is unexpectedly rotated or dropped at the position. Can be prevented.

DESCRIPTION OF SYMBOLS 1 Cartilage conduction hearing aid 2 Cartilage conduction speaker 3 Cartilage conduction speaker cover 4 Hearing aid main body 5 Covered electric wire 21 Vibrating surface 22 Housing | casing 23 Opposite surface of a vibrating surface 31 1st projection part 31a Contact part with a tragus 31b Contact with a tragus Part 32 Second protrusion 33 Holding part 33a Front part of holding part 33b Front end face part of holding part 33c Rear end face part of holding part 33d Upper end face part of holding part 33e Lower end face part of holding part 34 Pressure adjusting part A Auricle B External ear canal C Tragus D Drosophila E Interstitial Notch F Anti-Owl G Ear Ring Leg H Concha Wall I Concha

Claims (9)

A casing configured to come into contact with the concha cavity wall during auricular cartilage conduction and to extend from the vicinity of the ear ring to the ear canal mouth when the vibration surface contacts the concha cavity wall And a cartilage conduction speaker having
A holding portion for holding the cartilage conduction speaker; a front portion of the holding portion located on the opposite side of the vibration surface when the cartilage conduction speaker is held by the holding portion; and the vibration surface of the concha Extending from the front part of the holding part to the tragus and the anti-tragus and extending in the direction toward the inter-notch notch when contacted with the cavity wall, and the inner surface of the tragus and the inner surface of the anti-tragus A cartilage conduction speaker cover having a first protrusion contacting the surface of the notch
A cartilage conduction hearing aid comprising: The first projecting portion extends in a parabolic shape from the front portion of the holding portion toward the opposite side of the vibrating surface and the notch between the beads when the cartilage conduction speaker is held by the holding portion. The cartilage conduction hearing aid according to claim 1. The cartilage conduction speaker cover includes a rear end surface portion of the holding portion that is located on the opposite side of the ear canal mouth when the cartilage conduction speaker is held by the holding portion, and a rear end surface portion of the holding portion that extends from the rear end surface portion to the ear ring. The first projection according to claim 1, further comprising: a second projecting portion that extends in a direction of contact, and that contacts at least the inner surface of the earring, of the inner surface of the antitragus and the inner surface of the earring. A cartilage conduction hearing aid according to 1. 4. The cartilage conduction hearing aid according to claim 3, wherein the second projecting portion is curved and extended in a direction from the lower side of the earring to the upper side of the earring along the inner surface of the earring. At least the first protrusion and the second protrusion of the holding part, the first protrusion, and the second protrusion are made of soft synthetic resin, soft synthetic rubber, elastomer, or other soft elastic material. The cartilage conduction hearing aid according to any one of claims 1 to 4, characterized in that. The cartilage conduction according to any one of claims 1 to 5, wherein the first protrusion and the second protrusion are formed in a shape that narrows from a root toward a tip. hearing aid. The cartilage conduction speaker is configured to partially open the ear canal opening,
The said holding | maintenance part is comprised in the shape which partially opens the said ear canal opening when the said cartilage conduction speaker is mounted | worn with the said concha cavity wall. The cartilage conduction hearing aid according to claim 1. A holding portion for holding a cartilage conduction speaker configured to have a vibrating surface that contacts the concha cavity wall during auricular cartilage conduction and is configured to extend from the vicinity of the antiaural ring to the ear canal mouth;
When the cartilage conduction speaker is held by the holding part, the front part of the holding part located on the opposite side of the vibration surface;
When the cartilage conduction speaker is mounted in the concha cavity, it extends in the direction from the front part of the holding part to the tragus and the tragus via the tragus and the antitragus, and the ear A first protrusion that contacts the inner surface of the tragus, the inner surface of the tragus and the surface of the notch
A cartilage conduction speaker cover comprising: A vibrating surface that contacts the concha cavity wall during auricular cartilage conduction;
When the vibration surface comes into contact with the concha cavity wall, a housing main body configured to extend from the vicinity of the ear ring to the ear canal mouth, and when the vibration surface comes into contact with the concha cavity wall Extends in the direction from the opposite surface of the vibration surface to the tragus notch passing between the tragus and the antitragus, and is in contact with the inner surface of the tragus, the inner surface of the tragus, and the surface of the internotch A housing having a first projecting portion,
A cartilage conduction speaker comprising: