JP6092743B2 - Ear hole type hearing aid - Google Patents

Description

  The present invention relates to an earpiece type hearing aid characterized by the surface shape of a shell member.

Ear hook type hearing aids that appeared to be inserted into the ear canal (ear hole) through a soft shell member appeared around 1990. This is a hearing aid of the type in which a receiving part, a microphone, a battery, and the like are built in a shell, and the whole of the receiving part is held in the ear canal with the tip from which sound is emitted facing the eardrum side.
One problem with ear hearing aids is that when the ear canal is plugged with a shell, low sounds around 400 Hz resonate to produce a “feeling of being obscured” or “blocking”.

In order to improve this, there is an example in which a vent pipe (vent) for connecting the inside and outside of the shell is provided as in Patent Document 1, but there is a risk that howling easily occurs. The present inventor tried to make the outer shape of the shell larger than the size of the ear canal in order to prevent howling, but it caused a problem that an uncomfortable pressure sensation was caused on the skin.
In the range of Patent Documents 1 to 3 investigated by the inventor, it seems that there are no inventions or devices that have been specially devised for the surface structure of the shell in relation to the above-mentioned problems.

JP 2008-199193 A Japanese Patent Application Laid-Open No. 10-066196 JP-A-10-098797

  An object of the present invention is to provide an earphone type hearing aid that improves the feeling of volume inherent in the earphone type hearing aid and avoids the risk of howling.

One form of the earphone type hearing aid disclosed is a hollow shell member that is formed in a tapered short tube shape so as to conform to the shape of the ear canal entrance, and that has a sound hole at the tip that faces the eardrum side, and the sound anda face plate closing the end face opposite to the hole, a pair of battery contact pieces and the microphone are arranged on the inner surface of the face plate, ear-type amplifiers and receivers are housed inside the shell member ing A hearing aid, in order to improve the feeling of being bulky and to avoid the risk of howling, a plurality of dimples are uniformly distributed on the surface of the shell member, and each dimple is provided on the surface of the shell member. A shallow concave surface that falls into the interior from the inside, and when the ear hearing aid is worn, the shell member has a portion of the surface of the shell member where the dimple is not formed and the ear canal surface. Fit as bets are in contact with said dimples each other characterized in that the not connected by the groove.
In addition to the above configuration, one form of the earphone hearing aid disclosed is characterized in that no vent is formed.

  In addition to the above-described configuration, in one form of the earphone hearing aid disclosed, the inner surface of the shell member is provided with a vent hole that opens to the outside in the vicinity of the sound hole and in the vicinity of the face plate, and A vent pipe that communicates the vent hole while being isolated from the inside of the shell member is disposed along the inner surface of the shell member.

  In addition to the above-described configuration, an embodiment of the disclosed earphone type hearing aid is characterized in that the outer shape of the shell member is formed larger than the external auditory canal of a person wearing the earphone type hearing aid.

  The earphone type hearing aid disclosed can improve the feeling of volume inherent in the earphone type hearing aid, and can avoid the risk of howling.

It is a cut-out view showing a state in which an ear hearing aid having dimples is inserted into the ear canal and worn. It is an exploded view of an earpiece type hearing aid having dimples. It is the perspective view with the elements on larger scale and sectional drawing which show the dimple on the surface of a shell member. It is a side view which shows the cross section of the shell member which provides a dimple and a vent. It is a perspective view of the shell member which mixes and dimples of various shapes. It is a perspective view of the shell member which connected between each dimple with the groove | channel.

  Preferred embodiments of the invention are illustrated by the following examples.

  FIG. 1 is a cut-out view showing a state in which an earphone type hearing aid having dimples according to this embodiment is inserted into the external auditory canal, FIG. 2 is an exploded view of the earphone type hearing aid having dimples, and FIG. 3 is a shell member. It is the perspective view with the elements on larger scale and sectional drawing which show the dimple on the surface.

  The ear hole type hearing aid 10 according to the present embodiment is a hollow shell member that is formed in a tapered short tube shape so as to conform to the shape of the entrance of the external auditory canal 2 and that has a sound hole 112 at a tip portion that faces the eardrum side. 11 and a face plate 12 that closes the end surface opposite to the sound hole of the shell member, a pair of battery contact pieces 13 and a microphone 14 are arranged on the inner surface of the face plate 12, and an amplifier 15 and a receiver 16 are shells. Housed in the member 11.

  A plurality of dimples 111 are provided on the surface of the shell member 11 so as to be uniformly distributed, and each dimple 111 forms a concave shallow spherical surface that falls into the inside from the surface of the shell member 11.

  In the present embodiment, by providing the dimples 111, a slight gap is formed between the surface of the shell member 11 and the skin, and air permeability is imparted, so that the feeling of massiness and the feeling of blockage can be improved.

  FIG. 4 is a side view showing a cross section of a shell member having dimples and vents as a second embodiment.

  The inner surface of the shell member 11 of the earphone hearing aid 10 according to the present embodiment is provided with vent holes 113 and 113 that open to the outside in the vicinity of the sound hole 112 and in the vicinity of the face plate 12, respectively. A vent pipe 114 that communicates while being isolated from the inside of the shell member 11 is disposed along the inner surface of the shell member 11.

  Similar to the first embodiment, a plurality of dimples 111 are provided on the surface of the shell member 11 so as to be uniformly distributed, and the outer shape of the shell member 11 is formed slightly larger than the ear canal 2 in order to prevent howling. Even in this case, since the contact area between the outer surface of the shell and the skin is reduced, the feeling of pressure on the skin is reduced, and a comfortable wearing feeling is obtained.

5 and 6 are perspective views of a shell member having dimples as a third embodiment.
Also in the case of the present embodiment, as in the second embodiment, the air holes 113 and 113 and the air pipe 114 that communicates these air holes may be provided on the inner surface of the shell member 11.

In the present embodiment, unlike the first and second embodiments, the dimples 111 are not the same shape, but have an arbitrary planar shape selected from a circle, an ellipse, or an n-gon (n is 3 to 6) and are adjacent to each other. Adjacent groups of individual dimples or a plurality of dimples may have different planar shapes, or adjacent dimples 111 may be connected by a narrow groove 110.
(Summary)

  An object of the present invention is to alleviate the feeling of bulk and blockage peculiar to an earphone type hearing aid without using a vent pipe as much as possible. It is another object of the present invention to provide a shell structure that can keep the risk of howling low even when a ventilation pipe is provided, and that has less pressure on the ear canal when worn.

  In the present invention, by providing dimples, a slight gap is formed between the surface of the shell member and the skin, and air permeability is imparted. Therefore, the same effect as that of the vent, that is, the feeling of staying and feeling of blockage can be improved. . This reduces the need to form a vent, thereby avoiding the danger of howling due to the vent.

Also, when the vent is formed and the outer shape of the shell is slightly larger than the size of the ear canal to prevent howling, the dimples reduce the contact area between the outer surface of the shell and the skin. Therefore, the feeling of pressure on the skin is reduced and a comfortable wearing feeling is obtained.
(Appendix 1)

A hollow shell member formed in a tapered short tube shape so as to conform to the shape of the ear canal entrance and having a sound hole provided at the front end directed to the eardrum side, and a face plate that closes the end surface opposite to the sound hole And a pair of battery contact pieces and a microphone arranged on the inner surface of the face plate, and an earphone type hearing aid in which an amplifier and a receiver are housed inside the shell member,
When the earphone hearing aid is worn, the shell member is placed in the ear canal so that the surface of the shell member and the surface of the ear canal are in contact with each other,
A plurality of dimples are uniformly distributed on the surface of the shell member,
Each dimple is an earpiece type hearing aid having a shallow concave surface that falls into the inside from the surface of the shell member,
Each of the dimples has a planar shape selected from a circle, an ellipse, or an n-gon (n is 3 to 6).
(Appendix 2)

The earphone hearing aid according to appendix 1, wherein the adjacent dimples or adjacent groups of the plurality of dimples have different planar shapes.
(Appendix 3)
4. The ear-analyzing hearing aid according to appendix 3, wherein the adjacent dimples are connected by a narrow groove.

DESCRIPTION OF SYMBOLS 1 Ear shell, 2 Ear canal, 10 Ear hole type hearing aid, 11 Shell member, 110 Groove which connects between dimples, 111 Dimple, 112 Sound hole, 113 Vent hole, 114 Vent pipe (vent), 12 Face plate, 13 Battery contact piece , 14 Microphone, 15 Amplifier, 16 Receiver, 17 Wiring

Claims (4)

A hollow shell member formed in a tapered short tube shape so as to conform to the shape of the ear canal entrance and having a sound hole provided at the front end directed to the eardrum side, and a face plate that closes the end surface opposite to the sound hole If has, disposed pair of battery contact pieces and a microphone to the inner surface of the face plate, a ear hearing aid amplifiers and receivers ing housed within said shell member,
In order to improve the feeling of mass and avoid the danger of howling , a plurality of dimples are uniformly distributed on the surface of the shell member,
Each of the dimples forms a shallow concave surface that falls into the inside from the surface of the shell member,
When the ear hearing aid is worn, the shell member is placed in the ear canal so that the portion of the shell member surface where the dimple is not formed and the surface of the ear canal are in contact with each other, and the dimples are connected by a groove. Ear hole type hearing aid characterized by not being.   2. The ear hole type hearing aid according to claim 1, wherein no vent is formed.   The inner surface of the shell member is provided with a vent hole that opens to the outside in the vicinity of the sound hole and in the vicinity of the face plate, and a vent pipe that communicates with the vent hole while being isolated from the inside of the shell member. The earphone type hearing aid according to claim 1, wherein the earphone hearing aid is arranged along an inner surface of the shell member. The outer ear hearing aid according to claim 3, wherein the outer shape of the shell member is formed larger than the ear canal of the person wearing the ear ear hearing aid.

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