JP2020078477A - Ear plug - Google Patents
Ear plug Download PDFInfo
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- JP2020078477A JP2020078477A JP2018213354A JP2018213354A JP2020078477A JP 2020078477 A JP2020078477 A JP 2020078477A JP 2018213354 A JP2018213354 A JP 2018213354A JP 2018213354 A JP2018213354 A JP 2018213354A JP 2020078477 A JP2020078477 A JP 2020078477A
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- sound insulation
- insulation member
- sound
- driver unit
- ear canal
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- 238000009413 insulation Methods 0.000 claims abstract description 71
- 210000000613 ear canal Anatomy 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 230000004308 accommodation Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 5
- 210000005069 ears Anatomy 0.000 description 4
- 229920000657 LRPu Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 210000003094 ear ossicle Anatomy 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Abstract
Description
本発明は、耳栓に関する。 The present invention relates to earplugs.
騒音対策等のために耳栓が使用される。 Earplugs are used to prevent noise.
耳栓では音楽などを聴くことができない。 You cannot listen to music with earplugs.
本発明が解決しようとする課題は、音楽などを聴くことができる耳栓を提供することにある。 The problem to be solved by the present invention is to provide an earplug capable of listening to music and the like.
一実施形態の耳栓は、
電気信号を音声に変換するドライバユニットと、当該ドライバユニットを外耳道に向けて保持する遮音部材と、を有し、
前記遮音部材は、外耳道を閉塞可能であり、
前記遮音部材は、伸縮性及び柔軟性を有し、
前記遮音部材は、前記ドライバユニットの全体を収容する収容室を有し、
前記収容室の開口部は、樹脂で閉塞されている。
The earplug of one embodiment is
A driver unit that converts an electric signal into a sound, and a sound insulation member that holds the driver unit toward the ear canal,
The sound insulation member is capable of blocking the ear canal,
The sound insulation member has elasticity and flexibility,
The sound insulation member has a housing chamber that houses the entire driver unit,
The opening of the storage chamber is closed with resin.
図１乃至図３に示すように、一実施形態の耳栓１は、電気信号を音声に変換するドライバユニット２と、ドライバユニット２を外耳道（不図示）に向けて保持する遮音部材３と、ケーブル６と、を有している。 As shown in FIGS. 1 to 3, an earplug 1 according to an embodiment includes a driver unit 2 that converts an electric signal into a sound, and a sound insulation member 3 that holds the driver unit 2 toward an ear canal (not shown). And a cable 6.
遮音部材３は、外耳道を閉塞可能である。
遮音部材３は、伸縮性及び柔軟性を有する。
遮音部材３は、外耳道に挿入可能である。
遮音部材３は、ドライバユニット２の側壁（外周面）２ａと外耳道の内壁との間を埋める振動伝達材である。
遮音部材３は、比較的低域の音に比べて比較的高域の音に対する遮音性が高い性質を有している。
遮音部材３は、低反発フォーム又は低反発ゴムである。遮音部材３の素材の例として、低反発ポリウレタンを挙げることができる。低反発ポリウレタンからなる遮音部材３は、圧縮されると変形し、圧縮されなくなると、元の形状にゆっくりと戻る。遮音部材３は、外耳道の内壁に気密に密着する。これにより、高い遮音性が得られる。
遮音部材３は、これを貫通する貫通孔を有していない。
遮音部材３は、ドライバユニット２の全体を収容する収容室４を有する。
The sound insulation member 3 can block the external auditory meatus.
The sound insulation member 3 has elasticity and flexibility.
The sound insulation member 3 can be inserted into the ear canal.
The sound insulation member 3 is a vibration transmission material that fills a space between the side wall (outer peripheral surface) 2a of the driver unit 2 and the inner wall of the ear canal.
The sound insulating member 3 has a property of having a high sound insulating property with respect to a sound in a relatively high frequency range as compared with a sound in a relatively low frequency range.
The sound insulation member 3 is a low-resilience foam or a low-resilience rubber. As an example of the material of the sound insulation member 3, low-resilience polyurethane can be cited. The sound insulating member 3 made of low-resilience polyurethane deforms when compressed, and slowly returns to its original shape when uncompressed. The sound insulation member 3 is airtightly adhered to the inner wall of the ear canal. Thereby, high sound insulation is obtained.
The sound insulation member 3 does not have a through hole that penetrates it.
The sound insulation member 3 has a housing chamber 4 that houses the entire driver unit 2.
収容室４は、円筒状である。
収容室４の開口部４ａは、樹脂５で閉塞されている。
収容室４の開口部４ａは、遮音部材３の外耳道への反挿入側端部３ａに設けられている。
The accommodation chamber 4 has a cylindrical shape.
The opening 4 a of the accommodation chamber 4 is closed with the resin 5.
The opening 4a of the accommodation chamber 4 is provided at the end 3a of the sound insulation member 3 that is opposite to the ear canal.
反挿入側端部３ａは、遮音部材３のを外耳道に正しく挿入したときに、外耳道の外に向く側の端部である。挿入側端部３ｂは、遮音部材３のを外耳道に正しく挿入したときに、外耳道の奥に向く側の端部である。 The anti-insertion side end portion 3a is an end portion on the side facing the outside of the ear canal when the sound insulating member 3 is correctly inserted into the ear canal. The insertion-side end portion 3b is an end portion on the side facing the back of the ear canal when the sound insulating member 3 is correctly inserted into the ear canal.
ドライバユニット２は、入力電気信号に基づく放音（音響再生）を行う。ドライバユニット２の形状は、円柱状である。ドライバユニット２は、収容室４と互いに同軸に配置されている。ドライバユニット２の外周面２ａと収容室４の内周面４ｂは互いに接している。ドライバユニット２の先端面（放音部）２ｂは、収容室４の最奥面４ｃに面している。 The driver unit 2 performs sound emission (sound reproduction) based on the input electric signal. The driver unit 2 has a cylindrical shape. The driver unit 2 is arranged coaxially with the accommodation chamber 4. The outer peripheral surface 2a of the driver unit 2 and the inner peripheral surface 4b of the accommodation chamber 4 are in contact with each other. The front end surface (sound emitting portion) 2b of the driver unit 2 faces the innermost surface 4c of the accommodation chamber 4.
ケーブル６は、図示しない再生装置からの電気信号をドライバユニット２に伝達する。ケーブル６の一端は、ドライバユニット２の信号端子４ｄに接続されている。ケーブル６の他端側は、樹脂５から外に延びている。 The cable 6 transmits an electric signal from a reproduction device (not shown) to the driver unit 2. One end of the cable 6 is connected to the signal terminal 4d of the driver unit 2. The other end of the cable 6 extends outward from the resin 5.
樹脂５は、ドライバユニット２を収容室４に収容した後に、開口部４ａから収容室４に注入される。樹脂５の例として、熱硬化樹脂、紫外線硬化樹脂、等を挙げることができる。樹脂５は、収容室４に注入された後、硬化する。樹脂５は、硬化すると同時に、遮音部材３と強固に結合する。これにより、ドライバユニット２が遮音部材３に固定される。樹脂５は、硬化すると同時に、ケーブル６のシース６ａと強固に結合する。これにより、ケーブル６に掛かる力が、リード線６ｂと信号端子４ｄとの接続部に作用するのを防止することができる。よって、ケーブル６に所謂抜け止め用の結び目を設ける必要がなくなる。ケーブル６に抜け止め用の結び目による大曲率部が形成されないことで、曲げによるケーブル６の電気特性の悪化を回避できる。 The resin 5 is injected into the accommodation chamber 4 through the opening 4 a after the driver unit 2 is accommodated in the accommodation chamber 4. Examples of the resin 5 include a thermosetting resin, an ultraviolet curable resin, and the like. The resin 5 is injected into the housing chamber 4 and then cured. The resin 5 is hardened, and at the same time, firmly bonded to the sound insulation member 3. As a result, the driver unit 2 is fixed to the sound insulation member 3. The resin 5 is hardened, and at the same time, firmly bonded to the sheath 6a of the cable 6. This can prevent the force applied to the cable 6 from acting on the connecting portion between the lead wire 6b and the signal terminal 4d. Therefore, it is not necessary to provide the cable 6 with a so-called knot for retaining. Since the large curvature portion is not formed in the cable 6 by the knot for preventing the cable from coming off, deterioration of the electrical characteristics of the cable 6 due to bending can be avoided.
遮音部材３は、その大部分が外耳道内に挿入される。遮音部材３は、ドライバユニット２を外耳道の奥に向けて保持する。遮音部材３は、外耳道の内壁に密着する。 Most of the sound insulation member 3 is inserted into the ear canal. The sound insulation member 3 holds the driver unit 2 toward the back of the ear canal. The sound insulation member 3 is in close contact with the inner wall of the ear canal.
遮音部材３は、ドライバユニット２と外耳道の内壁との間を埋める。ドライバユニット２と外耳道の内壁との間は、遮音部材３により、振動伝達可能に接続される。 The sound insulation member 3 fills the space between the driver unit 2 and the inner wall of the ear canal. The driver unit 2 and the inner wall of the ear canal are connected by a sound insulation member 3 so that vibration can be transmitted.
遮音部材３は、ドライバユニット２から放音される音の伝達媒体となる。ドライバユニット２から放音された音の一部は、遮音部材３は、を通過する。遮音部材３は、ドライバユニット２から放音された音のエネルギーを一部吸収する。その吸収されたエネルギーの一部は、遮音部材３を媒体とする振動のエネルギーである。 The sound insulation member 3 serves as a transmission medium for sound emitted from the driver unit 2. A part of the sound emitted from the driver unit 2 passes through the sound insulation member 3. The sound insulation member 3 partially absorbs the energy of the sound emitted from the driver unit 2. Part of the absorbed energy is energy of vibration using the sound insulation member 3 as a medium.
ドライバユニット２の放音部２ｂから出た音の一部は、遮音部材３を介して外耳道の奥側（鼓膜側）の空間に放音（空気振動として放出）される。ドライバユニット２の放音部２ｂから出た音の一部は、遮音部材３を伝って外耳道の内壁に伝達される。外耳道の内壁に伝達される音（振動）には、遮音部材３を媒体とする固体振動が含まれる。ドライバユニット２の振動の一部は、遮音部材３を介して外耳道の内壁に伝達される。 A part of the sound emitted from the sound emitting portion 2b of the driver unit 2 is emitted (released as air vibration) to the space on the inner side (eardrum side) of the ear canal through the sound insulation member 3. A part of the sound emitted from the sound emitting portion 2b of the driver unit 2 is transmitted to the inner wall of the ear canal through the sound insulation member 3. The sound (vibration) transmitted to the inner wall of the ear canal includes solid vibrations using the sound insulation member 3 as a medium. Part of the vibration of the driver unit 2 is transmitted to the inner wall of the ear canal via the sound insulation member 3.
上記のように構成された一実施形態の耳栓１は、ドライバユニット２の放音部２ｂから出た音を、音導管（不図示）を通さずに外耳道内に放音する。また、耳栓１は、ドライバユニット２と外耳道の内壁とを、遮音部材３を介して振動伝達可能に接続する。このため、耳栓１は、音導管を有するカナル型イヤホンと比較して中低音再現性が良い。 The earplug 1 of the embodiment configured as described above emits the sound emitted from the sound emitting portion 2b of the driver unit 2 into the ear canal without passing through a sound conduit (not shown). In addition, the earplug 1 connects the driver unit 2 and the inner wall of the external auditory meatus via the sound insulation member 3 so that vibration can be transmitted. For this reason, the earplug 1 has better mid-low range reproducibility as compared with the canal type earphone having the sound conduit.
また、耳栓１は、非貫通型の遮音部材３を備えている。このため、耳栓１は、貫通型のイヤプラグを備えたイヤホンと比較して低音再現性が良い。これは、遮音部材３が、比較的高域の音に対する遮音性（吸音性）が高い性質を持つことによる。すなわち、ドライバユニット２の放音部２ｂから出た音は、遮音部材３を経ることにより、高域成分に対し低域成分が相対的に増幅される。 Further, the earplug 1 includes a non-penetrating sound insulation member 3. Therefore, the earplug 1 has a better bass reproducibility as compared with an earphone having a penetrating earplug. This is because the sound insulation member 3 has a property of having a high sound insulation property (sound absorption property) for sounds in a relatively high frequency range. That is, the sound emitted from the sound emitting portion 2b of the driver unit 2 passes through the sound insulation member 3, so that the low frequency component is relatively amplified with respect to the high frequency component.
また、耳栓１は、ドライバユニット２の振動（放音部２ｂから出た音及びドライバユニット２自体の振動を含む）を、遮音部材３を介して外耳道の内壁に伝達するので、ドライバユニット２による再生音を、空気の振動のみならず、皮膚及び骨の振動によって、聴覚器官（耳小骨、渦巻管、等）に伝達することができる。このことは、再生音の可聴性に極めて有利に働く。 Further, since the earplug 1 transmits the vibration of the driver unit 2 (including the sound emitted from the sound emitting portion 2b and the vibration of the driver unit 2 itself) to the inner wall of the ear canal through the sound insulation member 3, the driver unit 2 It is possible to transmit the reproduced sound by the auditory organ (ear ossicle, spiral tube, etc.) not only by vibration of air but also by vibration of skin and bone. This is extremely advantageous for the audibility of the reproduced sound.
また、耳栓１は、耳に接触する部分が遮音部材３であり且つ遮音部材３が柔軟な部材であるので、耳への装着感が良好で、長時間着けていても耳が痛くなり難い。また、耳栓１を耳に装着した状態において、耳栓１が耳から出っ張らないので、耳栓１を耳に装着した状態で、耳を枕など当接対象 （不図示）に当てても、耳栓１が当接対象と干渉し難い。したがって、耳栓１は、寝ホンすなわち、ユーザが寝ながら音楽などを聴く態様での使用に適している。
Further, the earplug 1 has a sound insulation member 3 in a portion that comes into contact with the ear and the sound insulation member 3 is a flexible member, so that the earplug 1 has a good feeling of wearing on the ear, and the ear is less likely to hurt even when worn for a long time. . Further, since the earplugs 1 do not protrude from the ears when the earplugs 1 are attached to the ears, even when the earplugs 1 are attached to the ears, the ears are applied to a contact object (not shown) such as a pillow, It is difficult for the earplug 1 to interfere with the contact target. Therefore, the earplug 1 is suitable for use in a sleeping phone, that is, in a mode in which the user listens to music while sleeping.
なお、本発明の実施形態は上記の実施形態に限定されるものではなく、本発明の技術的思想の趣旨を逸脱しない範囲において様々に変更、置換、変形されてもよい。 The embodiment of the present invention is not limited to the above-mentioned embodiment, and may be variously changed, replaced, or modified without departing from the spirit of the technical idea of the present invention.
例えば、上記の例の耳栓１は、所謂ベル型の遮音部材３を備えているが、遮音部材３は所謂弾丸型でも円柱型でもよい。また、遮音部材３は略球形であってもよい。 For example, the earplug 1 in the above example includes the so-called bell-shaped sound insulation member 3, but the sound insulation member 3 may be a so-called bullet shape or columnar shape. Further, the sound insulation member 3 may have a substantially spherical shape.
また、耳栓１は、ドライバユニット２を被覆するキャップ（ケーシング）を更に有し、遮音部材３は、ドライバユニット２を当該キャップごと収容してもよい。 The earplug 1 may further include a cap (casing) that covers the driver unit 2, and the sound insulation member 3 may house the driver unit 2 together with the cap.
以上のように、本明細書には、以下の内容が開示されている。
（１）
電気信号を音声に変換するドライバユニットと、当該ドライバユニットを外耳道に向けて保持する遮音部材と、を有し、
前記遮音部材は、外耳道を閉塞可能であり、
前記遮音部材は、伸縮性及び柔軟性を有し、
前記遮音部材は、前記ドライバユニットの全体を収容する収容室を有し、
前記収容室の開口部は、樹脂で閉塞されている、耳栓。
この構成によれば、極めて簡単な構成で、音楽などを聴くことができる耳栓を実現することができる。
As described above, the following contents are disclosed in this specification.
(1)
A driver unit that converts an electric signal into a sound, and a sound insulation member that holds the driver unit toward the ear canal,
The sound insulation member is capable of blocking the ear canal,
The sound insulation member has elasticity and flexibility,
The sound insulation member has a housing chamber that houses the entire driver unit,
An earplug in which the opening of the storage chamber is closed with resin.
According to this structure, it is possible to realize an earplug capable of listening to music and the like with an extremely simple structure.
（２）
前記遮音部材と前記樹脂は互いに結合している、（１）の耳栓。
この構成によれば、遮音部材と樹脂とを一体化させ、ドライバユニットを遮音部材内に固定することができる。
(2)
The earplug of (1), wherein the sound insulation member and the resin are bonded to each other.
With this configuration, the sound insulation member and the resin can be integrated, and the driver unit can be fixed in the sound insulation member.
（３）
前記ドライバユニットに一端が接続され、多端が前記樹脂から外に延びるケーブルを有し、
前記ケーブルは、前記樹脂と結合している、（１）又は（２）記載の耳栓。
この構成によれば、ケーブルと樹脂とを一体化させ、ケーブルに掛かる力が、ケーブルとドライバユニットとの接続部に作用するのを防止することができる。
(3)
One end is connected to the driver unit, and the other end has a cable that extends out from the resin,
The earplug according to (1) or (2), wherein the cable is combined with the resin.
According to this configuration, the cable and the resin can be integrated, and the force applied to the cable can be prevented from acting on the connecting portion between the cable and the driver unit.
（４）
前記遮音部材は、外耳道に挿入可能であり、
前記収容室の開口部は、前記遮音部材の外耳道への反挿入側端部に設けられている、（１）乃至（３）のいずれかの耳栓。
(4)
The sound insulation member is insertable into the ear canal,
The opening part of the said accommodation chamber is an earplug in any one of (1) thru|or (3) provided in the edge part of the sound-insulating member on the side opposite to the ear canal.
（５）
前記遮音部材は、前記ドライバユニットの側壁と外耳道の内壁との間を埋める振動伝達材である、（１）乃至（４）のいずれかの耳栓。
(5)
The sound insulating member is an earplug according to any one of (1) to (4), which is a vibration transmitting material that fills a space between a side wall of the driver unit and an inner wall of the ear canal.
（６）
前記遮音部材は、比較的低域の音に比べて比較的高域の音に対する遮音性が高い、（１）乃至（５）のいずれかの耳栓。
(6)
The said sound insulation member is earplug in any one of (1) thru|or (5) which has high sound insulation with respect to the sound of a comparatively high range compared with the sound of a comparatively low range.
（７）
前記遮音部材は、低反発フォーム又は低反発ゴムである、（１）乃至（６）のいずれかの耳栓。
(7)
The earplug according to any one of (1) to (6), wherein the sound insulation member is low-resilience foam or low-resilience rubber.
１ 耳栓
２ ドライバユニット
２ａ 外周面
２ｂ 放音部
３ 遮音部材
３ａ 反挿入側端部
４ 収容室
４ａ 開口部
４ｂ 内周面
４ｄ 信号端子
５ 樹脂
６ ケーブル
６ａ シース
DESCRIPTION OF SYMBOLS 1 Earplug 2 Driver unit 2a Outer peripheral surface 2b Sound emission part 3 Sound insulation member 3a Non-insertion side end 4 Storage chamber 4a Opening 4b Inner peripheral surface 4d Signal terminal 5 Resin 6 Cable 6a Sheath
Claims (7)
前記遮音部材は、外耳道を閉塞可能であり、
前記遮音部材は、伸縮性及び柔軟性を有し、
前記遮音部材は、前記ドライバユニットの全体を収容する収容室を有し、
前記収容室の開口部は、樹脂で閉塞されている、耳栓。 A driver unit that converts an electric signal into a sound, and a sound insulation member that holds the driver unit toward the ear canal,
The sound insulation member is capable of blocking the ear canal,
The sound insulation member has elasticity and flexibility,
The sound insulation member has a housing chamber that houses the entire driver unit,
An earplug in which the opening of the storage chamber is closed with resin.
前記ケーブルは、前記樹脂と結合している、請求項１又は２記載の耳栓。 One end is connected to the driver unit, and the other end has a cable that extends out from the resin,
The earplug according to claim 1 or 2, wherein the cable is combined with the resin.
前記収容室の開口部は、前記遮音部材の外耳道への反挿入側端部に設けられている、請求項１乃至３のいずれかに記載の耳栓。 The sound insulation member is insertable into the ear canal,
The earplug according to any one of claims 1 to 3, wherein the opening of the accommodation chamber is provided at an end of the sound insulation member that is opposite to the ear canal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018213354A JP2020078477A (en) | 2018-11-13 | 2018-11-13 | Ear plug |
| JP2023186033A JP2024003054A (en) | 2018-11-13 | 2023-10-30 | Ear plug manufacturing method |
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| JP2018213354A JP2020078477A (en) | 2018-11-13 | 2018-11-13 | Ear plug |
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| JP2023186033A Division JP2024003054A (en) | 2018-11-13 | 2023-10-30 | Ear plug manufacturing method |
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| JP2020078477A true JP2020078477A (en) | 2020-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018213354A Pending JP2020078477A (en) | 2018-11-13 | 2018-11-13 | Ear plug |
| JP2023186033A Pending JP2024003054A (en) | 2018-11-13 | 2023-10-30 | Ear plug manufacturing method |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023186033A Pending JP2024003054A (en) | 2018-11-13 | 2023-10-30 | Ear plug manufacturing method |
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| Country | Link |
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| JP (2) | JP2020078477A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181760A (en) * | 1987-01-22 | 1988-07-26 | 旭化成株式会社 | Sound absorbing material for ear |
| US20040010181A1 (en) * | 2001-08-10 | 2004-01-15 | Jim Feeley | BTE/CIC auditory device and modular connector system therefor |
| JP2009232443A (en) * | 2008-02-29 | 2009-10-08 | Nec Tokin Corp | Receiver |
-
2018
- 2018-11-13 JP JP2018213354A patent/JP2020078477A/en active Pending
-
2023
- 2023-10-30 JP JP2023186033A patent/JP2024003054A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63181760A (en) * | 1987-01-22 | 1988-07-26 | 旭化成株式会社 | Sound absorbing material for ear |
| US20040010181A1 (en) * | 2001-08-10 | 2004-01-15 | Jim Feeley | BTE/CIC auditory device and modular connector system therefor |
| JP2009232443A (en) * | 2008-02-29 | 2009-10-08 | Nec Tokin Corp | Receiver |
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| Publication number | Publication date |
|---|---|
| JP2024003054A (en) | 2024-01-11 |
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