JP5305888B2 - Ear hole type hearing aid - Google Patents
Ear hole type hearing aid Download PDFInfo
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- JP5305888B2 JP5305888B2 JP2008323051A JP2008323051A JP5305888B2 JP 5305888 B2 JP5305888 B2 JP 5305888B2 JP 2008323051 A JP2008323051 A JP 2008323051A JP 2008323051 A JP2008323051 A JP 2008323051A JP 5305888 B2 JP5305888 B2 JP 5305888B2
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- vent
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Description
本発明は、外界と外耳道を連通するベントを設けた耳あな型補聴器に関する。 The present invention relates to an earpiece type hearing aid provided with a vent that allows communication between the outside world and the ear canal.
従来、装用者の外耳道形状に合わせて作製する耳あな型補聴器１００には、図４（ａ）に示すように、こもり感を軽減させるためにシェル１０１にベント１０２が設けられている。また、外耳道をほぼ開放状態にするためにベントを太くした補聴器が知られている（例えば、特許文献１参照）。更に、乱流に起因する風雑音を信号処理で軽減させる技術が公開されている（例えば、特許文献２参照）。 Conventionally, as shown in FIG. 4 (a), an ear-shaped hearing aid 100 manufactured according to the shape of the ear canal of a wearer is provided with a vent 102 in a shell 101 in order to reduce the feeling of being crowded. In addition, a hearing aid having a thick vent for making the external auditory canal substantially open is known (see, for example, Patent Document 1). Furthermore, a technique for reducing wind noise caused by turbulence by signal processing is disclosed (for example, see Patent Document 2).
しかし、図４（ｂ）に示すように、ベント１０２の外界側開口部のエッジ１０３が尖っている場合には、そこに強い風が当たるとエッジトーンの影響でピーピーと笛のような風きり音が発生し易くなり、装用者にとって不快である。また、ベントを太くしても、ベントの外界側開口部のエッジが尖っている場合には、そこに強い風が当たるとエッジトーン及びベント空洞の共振周波数の影響で笛が鳴るような風きり音が発生し易くなり、装用者にとって不快である。 However, as shown in FIG. 4 (b), when the edge 103 of the opening on the outside of the vent 102 is sharp, if a strong wind hits the edge 103, the wind is like a whistle and whistle due to the influence of the edge tone. Sound tends to be generated and is uncomfortable for the wearer. In addition, even if the vent is thick, if the edge of the vent opening on the outside is sharp, if the strong wind hits it, the wind will sound like a whistle due to the edge tone and the resonance frequency of the vent cavity. Sound tends to be generated and is uncomfortable for the wearer.
信号処理による風雑音の抑制方法は、発生した風雑音がマイクロホンへ入力した場合に信号処理で抑制させイヤホンから外耳道へ出力し難くする技術なので、ベントを通じて直接外耳道へ達する風雑音については効果がない。風きり音の対策を課題とする技術は公開されていない。 The wind noise suppression method by signal processing is a technology that suppresses the generated wind noise by signal processing when it is input to the microphone and makes it difficult to output from the earphone to the ear canal, so it is ineffective for wind noise that reaches the ear canal directly through the vent. . There is no publicly available technology that takes measures against wind noise.
本発明は、従来の技術が有するこのような問題点に鑑みてなされたものであり、その目的とするところは、ベントを設けても風きり音が発生し難い耳あな型補聴器を提供しようとするものである。 The present invention has been made in view of such problems of the prior art, and an object of the present invention is to provide an ear-shaped hearing aid that hardly generates wind noise even if a vent is provided. To do.
上記課題を解決すべく請求項１に係る発明は、外界と外耳道を連通する略楕円形状のベントを設けた耳あな型補聴器において、前記ベントの内壁に通気経路の一部をさえぎる凸部を設け、各凸部の間隔が規則的または不規則的になるように凸部を配置し、共振による風きり音を低減するものである。 In order to solve the above-mentioned problem, the invention according to claim 1 is an earring type hearing aid provided with a substantially elliptical vent that communicates the outside world with the external auditory canal. The convex portions are arranged so that the intervals between the convex portions are regular or irregular, and wind noise caused by resonance is reduced .
請求項２に係る発明は、外界と外耳道を連通するベントを設けた耳あな型補聴器において、前記ベントの内壁にランダムな凸凹部を形成し、共振による風きり音を低減するものである。
According to a second aspect of the present invention, in the earphone type hearing aid provided with a vent that communicates the outside world with the ear canal, a random convex recess is formed on the inner wall of the vent to reduce wind noise caused by resonance .
請求項１に係る発明によれば、各凸部の間隔が規則的にならないように凸部を配置すれば、共振周波数のピークを下げて共振を弱めることができる。また、各凸部の間隔が規則的になるように凸部を配置すれば、特定の周波数に対応することができる。 According to the first aspect of the present invention, if the convex portions are arranged so that the intervals between the convex portions are not regular, the resonance frequency can be lowered and the resonance can be weakened. Moreover, if a convex part is arrange | positioned so that the space | interval of each convex part may become regular, it can respond to a specific frequency .
請求項２に係る発明によれば、共振を弱めて共振周波数の音の発生を軽減することができる。 According to the second aspect of the present invention, it is possible to weaken the resonance and reduce the generation of sound at the resonance frequency .
以下に本発明の実施の形態を添付図面に基づいて説明する。ここで、図１は本発明に係る耳あな型補聴器の斜視図、図２は要部断面図、図３は別実施の形態の要部断面図、図４は従来の耳あな型補聴器の説明図である。 Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a perspective view of an earpiece type hearing aid according to the present invention, FIG. 2 is a sectional view of a principal part, FIG. 3 is a sectional view of a principal part of another embodiment, and FIG. FIG.
本発明に係る耳あな型補聴器は、図１に示すように、樹脂製のシェル１とフェースプレート２でケース体３を形成し、ケース体３の内部にはボタン形の電池、マイクロホン、補聴処理部やイヤホンなどの補聴器を構成する電気部品が設置されている。また、シェル１には、断面が略楕円形状のベント４が形成されている。フェースプレート２には、各種のスイッチ類５や回動自在な電池ホルダ６などが取り付けられている。 As shown in FIG. 1, an earphone type hearing aid according to the present invention forms a case body 3 with a resin shell 1 and a face plate 2, and inside the case body 3 is a button-type battery, a microphone, and a hearing aid processing. Electric parts that make up hearing aids such as headphone and earphone are installed. Further, the shell 1 is formed with a vent 4 having a substantially elliptical cross section. Various switches 5 and a rotatable battery holder 6 are attached to the face plate 2.
シェル１は、装用者の外耳道形状データからＣＡＤ（Computer Aided Design）により、コンピュータ上で形状が設定され、光造形法で自動的に作製される。ベント４の形状、位置や太さなどもコンピュータ上で設計することができる。 The shape of the shell 1 is set on a computer by CAD (Computer Aided Design) from the ear canal shape data of the wearer, and the shell 1 is automatically produced by stereolithography. The shape, position, thickness, etc. of the vent 4 can also be designed on the computer.
図４（ａ）に示す従来の耳あな型補聴器のように、通常１ｍｍ程度の直径であるベント１０２にくらべて、本発明ではベント４を可能な限り太くすることが可能である。ベント４が太くなれば、外耳道は開放された状態とほとんど変わらなくなり、こもり感が低減され、装用が快適なものとになる。 In the present invention, the vent 4 can be made as thick as possible as compared with the vent 102 having a diameter of about 1 mm, as in the conventional earphone type hearing aid shown in FIG. If the vent 4 becomes thicker, the ear canal becomes almost the same as the opened state, the feeling of voluminousness is reduced, and wearing becomes comfortable.
また、ベント４の外界側開口部５のエッジ６は、図２に示すように、丸められている。エッジ６が尖っていると、エッジトーンの影響でピーピーと笛のような音がするからである。更に、ベント４の内壁７に凸部８を少なくとも１つ設けることができる。本実施の形態では、ベント４の通気経路の一部をさえぎる板状の凸部８を２つ設けている。 Further, the edge 6 of the outside opening 5 of the vent 4 is rounded as shown in FIG. This is because when the edge 6 is sharp, a sound like a whistle and whistle is produced due to the influence of the edge tone. Furthermore, at least one convex portion 8 can be provided on the inner wall 7 of the vent 4. In the present embodiment, two plate-like convex portions 8 that block a part of the ventilation path of the vent 4 are provided.
ベント４の外界側開口端５と各凸部８の間隔が規則的にならないように凸部８を配置すれば、共振周波数のピークを下げて共振を弱めることができる。特定の周波数に対応させる目的であれば、それに合わせた規則性のある配置にしてもよい。光造形法でシェル１を作製するので、エッジ６の形状も凸部８の形状及び配置も、コンピュータ上で設定することができる。エッジ６に丸みを付ける（Ｒをつける）か、凸部８を設けるかについては、どちらか一方でもよい。 If the protrusions 8 are arranged so that the interval between the outer opening 5 of the vent 4 and the protrusions 8 is not regular, the resonance frequency peak can be lowered and the resonance can be weakened. For the purpose of corresponding to a specific frequency, an arrangement with regularity may be adopted. Since the shell 1 is produced by stereolithography, the shape of the edge 6 and the shape and arrangement of the convex portion 8 can be set on the computer. Either the edge 6 may be rounded (R is added) or the convex portion 8 may be provided.
また、ベント４の内壁７に凸部８を設ける替わりに、ベント４の内壁７に、図３に示すように、ランダムな凸凹部９を形成して共振を弱めて共振周波数の音の発生を軽減することもできる。 Further, instead of providing the convex portion 8 on the inner wall 7 of the vent 4, a random convex concave portion 9 is formed on the inner wall 7 of the vent 4 as shown in FIG. It can also be reduced.
本発明によれば、ベントを設けても装用者にとって不快に感じる笛が鳴るような風きり音が発生し難い耳あな型補聴器を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, even if a vent is provided, it is possible to provide an earphone type hearing aid that is unlikely to generate a wind noise such as a whistle that feels uncomfortable for the wearer.
１…シェル、２…フェースプレート、３…ケース体、４…ベント、５…外界側開口部、６…エッジ、７…内壁、８…凸部、９…凸凹部。 DESCRIPTION OF SYMBOLS 1 ... Shell, 2 ... Face plate, 3 ... Case body, 4 ... Vent, 5 ... Outside world side opening part, 6 ... Edge, 7 ... Inner wall, 8 ... Convex part, 9 ... Convex recessed part.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008323051A JP5305888B2 (en) | 2008-12-19 | 2008-12-19 | Ear hole type hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008323051A JP5305888B2 (en) | 2008-12-19 | 2008-12-19 | Ear hole type hearing aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010147825A JP2010147825A (en) | 2010-07-01 |
| JP5305888B2 true JP5305888B2 (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008323051A Expired - Fee Related JP5305888B2 (en) | 2008-12-19 | 2008-12-19 | Ear hole type hearing aid |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5057186B2 (en) | 2010-06-29 | 2012-10-24 | ブラザー工業株式会社 | Image reading apparatus, scanner driver, and image storage method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7580537B2 (en) * | 1998-11-25 | 2009-08-25 | Insound Medical, Inc. | Sealing retainer for extended wear hearing devices |
| US7014010B2 (en) * | 2000-06-30 | 2006-03-21 | Phonak Ag | Method for manufacturing an ear device and ear device |
| JP2003032798A (en) * | 2001-07-18 | 2003-01-31 | Mimii Denshi Kk | Vent structure for ear plug |
| JP3866748B2 (en) * | 2005-02-22 | 2007-01-10 | リオン株式会社 | Waterproof hearing aid |
| CN101218851A (en) * | 2005-07-08 | 2008-07-09 | 唯听助听器公司 | Hearing aid and an ear piece for a hearing aid |
| JP4925849B2 (en) * | 2007-02-09 | 2012-05-09 | スターキージャパン株式会社 | hearing aid |
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| JP2010147825A (en) | 2010-07-01 |
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