JP2009094986A - Telephone receiver - Google Patents

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JP2009094986A
JP2009094986A JP2007266412A JP2007266412A JP2009094986A JP 2009094986 A JP2009094986 A JP 2009094986A JP 2007266412 A JP2007266412 A JP 2007266412A JP 2007266412 A JP2007266412 A JP 2007266412A JP 2009094986 A JP2009094986 A JP 2009094986A
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vibration
sound
receiver
bone conduction
transmission
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Akiko Takashima
晶子 鷹島
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Nec Tokin Corp
Necトーキン株式会社
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<P>PROBLEM TO BE SOLVED: To provide a telephone receiver that imposes little burden on a user due to its light weight and easy attachment system and that allows clear reception and transmission of required voice information even in noisy environment. <P>SOLUTION: A receiver portion comprises: vibration members 4 for receiving an electrically converted voice signal to generate voice vibrations; and vibration transmission members 5 that are bonded to the vibration members 4 and have projection portions 8 at the center thereof that can be inserted from cavities of the concha into portions reaching the entrances of external acoustic meatuses. The receiver portion is supported by a head arm 15 and the vibration transmission members 5 have a specific gravity of ≤0.05. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、騒音の激しい環境においても音声信号を明瞭に聴取するのに適した受話装置に関する。   The present invention relates to a receiver that is suitable for clearly listening to an audio signal even in a noisy environment.
近年、騒音の激しい環境で音声信号を聴取するための受話装置が種々開発されている。例えば、第1の例として、耳全体を覆い遮音するイヤーマフと、その内部に実装された電磁型のスピーカとで構成される受話装置等が提案されている。内部にスピーカを配置した一対のイヤーマフをヘッドバンドに取り付けて、さらにマイクロフォンをヘッドバンドに取り付けた装置を携帯電話機に接続することで、騒音下でも容易に携帯電話機による通話が可能なシステムも提案されている。このような受話装置は、特許文献1に開示されている。   In recent years, various receivers for listening to audio signals in a noisy environment have been developed. For example, as a first example, there has been proposed a receiver or the like that includes an ear muff that covers the entire ear and is sound-insulated, and an electromagnetic speaker mounted therein. A system has also been proposed in which a pair of ear muffs with a speaker inside is attached to the headband, and a device with a microphone attached to the headband is connected to the mobile phone, making it possible to make a phone call easily even under noisy conditions. ing. Such a receiver is disclosed in Patent Document 1.
また、第2の例として、イヤーマフと、イヤーマフの内部に取り付けられたスピーカと、イヤーマフの外側に配置された指向性マイクロフォンと、制御回路とからなり、使用者が相手と会話する際に、前記指向性マイクロフォンが拾う周囲の環境音の状況に応じてフィルタリング制御を行うことで、会話を容易にするイヤーデバイスも提案されている。このような受話装置は、特許文献2に開示されている。   Also, as a second example, the ear muff, a speaker attached inside the ear muff, a directional microphone arranged outside the ear muff, and a control circuit, when the user talks to the other party, There has also been proposed an ear device that facilitates conversation by performing filtering control according to the surrounding environmental sound picked up by a directional microphone. Such a receiver is disclosed in Patent Document 2.
さらに、第3の例として、高騒音下であるMRI装置の中にいる被検者が、外部にいるオペレータと会話をするための受話装置も提案されている。この受話装置は、イヤーマフの内部に骨伝導スピーカと骨伝導マイクロフォンを実装し、耳を完全に塞いだ状態で気導音ではなく骨導音で会話をする受話装置である。このような受話装置は、特許文献3に開示されている。   Furthermore, as a third example, a receiving device is proposed in which a subject in an MRI apparatus under high noise has a conversation with an outside operator. This receiving device is a receiving device in which a bone conduction speaker and a bone conduction microphone are mounted inside an ear muff, and a conversation is conducted with bone conduction sound instead of air conduction sound with the ear completely closed. Such a receiver is disclosed in Patent Document 3.
図4は、特許文献3で提案されている従来の受話装置の斜視図である。図4に示すように、受話装置20は、送話用の圧電素子からなる骨伝導マイクロフォン21と、受話用の圧電素子からなる骨伝導スピーカ22が使用されている。骨伝導マイクロフォン21及び骨伝導スピーカ22がヘッドフォン形の遮音用イヤーマフ23に組み込まれた構成となっている。   FIG. 4 is a perspective view of a conventional receiving device proposed in Patent Document 3. In FIG. As shown in FIG. 4, the reception device 20 uses a bone conduction microphone 21 made of a piezoelectric element for transmission and a bone conduction speaker 22 made of a piezoelectric element for reception. The bone conduction microphone 21 and the bone conduction speaker 22 are incorporated into a headphone-type sound insulation earmuff 23.
このうち骨伝導マイクロフォン21は、遮音用イヤーマフ23 のイヤーパッド24のほぼ中央部分、即ち、一般的な使用者の耳孔に対応する箇所に配置され、使用者が遮音用イヤーマフ23を装着したときに、骨伝導マイクロフォン21の先端部が使用者の耳孔内に挿入され得るように構成されている。また、骨伝導スピーカ22は、上記イヤーパッド24の内部の一般的な使用者の耳介周囲部分に対応する箇所に収められている。   Among these, the bone conduction microphone 21 is arranged at a substantially central portion of the ear pad 24 of the sound insulation ear muff 23, that is, a portion corresponding to a general user's ear hole, and when the user wears the sound insulation ear muff 23, The distal end portion of the bone conduction microphone 21 is configured to be inserted into the user's ear canal. Further, the bone conduction speaker 22 is housed in a location corresponding to a general user's auricle peripheral portion inside the ear pad 24.
骨伝導マイクロフォン21及び骨伝導スピーカ22は、遮音用イヤーマフ23装着時に、使用者の頭部に直接、又は保護カバーやクッション材等からなる保護部材(図示せず)を介してその各作動面が接触するように組み込まれている。また、その接触の圧力は、遮音用イヤーマフ23の左右のハウジング27を連結するヘッドバンド28の材質や構造により設定される。   The bone conduction microphone 21 and the bone conduction speaker 22 have their respective operation surfaces directly on the user's head or through a protective member (not shown) made of a protective cover, cushioning material or the like when the sound insulation earmuff 23 is attached. Built in contact. The contact pressure is set by the material and structure of the headband 28 that connects the left and right housings 27 of the sound insulation earmuff 23.
図5は、特許文献3で提案されている従来の骨伝導スピーカの断面図である。図5に示すように、骨伝導スピーカ22は、円板状の圧電バイモルフ素子71の全周囲をエラストマ材72で保持している。圧電バイモルフ素子71に電気音響信号を入力すると、撓みによる機械振動が生じる。この振動が伝達部材76を介して振動体73に伝達して振動体73を振動させる。エラストマ材72は、ケース74の内面に固着された支持部材75に支持されている。圧電バイモルフ素子71はケース74内に収められ振動体73の表面はケース74の外に位置するように配置されている。また、骨伝導マイクロフォン21も同様の構成を成し、機械振動を電気音響信号に変換する機能を有している。   FIG. 5 is a cross-sectional view of a conventional bone conduction speaker proposed in Patent Document 3. As shown in FIG. As shown in FIG. 5, the bone conduction speaker 22 holds the entire periphery of the disk-shaped piezoelectric bimorph element 71 with an elastomer material 72. When an electroacoustic signal is input to the piezoelectric bimorph element 71, mechanical vibration due to bending occurs. This vibration is transmitted to the vibrating body 73 via the transmission member 76 to vibrate the vibrating body 73. The elastomer material 72 is supported by a support member 75 fixed to the inner surface of the case 74. The piezoelectric bimorph element 71 is housed in the case 74, and the surface of the vibrating body 73 is disposed outside the case 74. Further, the bone conduction microphone 21 has the same configuration and has a function of converting mechanical vibration into an electroacoustic signal.
登録実用新案第3023116号公報Registered Utility Model No. 3023116 特表平10−505475号公報Japanese National Patent Publication No. 10-505475 特開2005−245580号公報JP 2005-245580 A
前述したように、騒音下において必要な情報のみを送受信する音声情報の伝達システムとして、遮音用イヤーマフとその内部に実装されたスピーカを使用する受話装置が提案されている。しかしながら、これらの受話装置には、重厚な遮音壁を有するイヤーマフが使用される。そのため重量が増すという問題点がある。また、この重量にさらにスピーカの重量も加わり、ますます重くなるので、例えば現場作業者などの使用者にとって、長時間に渡り装着することは、負担が大きいという問題点がある。   As described above, as a voice information transmission system that transmits and receives only necessary information under noise, an earpiece using a sound insulation earmuff and a speaker mounted therein has been proposed. However, earmuffs having a heavy sound insulation wall are used for these receivers. Therefore, there is a problem that the weight increases. Further, since the weight of the speaker is further increased in addition to this weight, for example, for a user such as a field worker, there is a problem that it is burdensome to wear it for a long time.
また、受話方式が骨伝導のみの場合、高騒音下で充分な聴感を得るためには大きなレベルの振動を必要とし、振動発生源のパワーアップが不可欠になるため、ヘッドセット部の重量がさらに増大するという問題点がある。   In addition, when the receiving system is bone conduction only, a large level of vibration is required to obtain sufficient audibility under high noise, and power-up of the vibration source becomes indispensable. There is a problem of increasing.
さらに、外耳道入口に密着するイヤーパッドは、汗や埃で汚れやすいという問題点がある。   Furthermore, there is a problem that ear pads that are in close contact with the ear canal entrance are easily soiled with sweat and dust.
従って、本発明は、上記の問題点を解決し、軽量で装着が容易で使用者に負担を与えずに効果的な受話と同時に、必要な情報を明瞭に聴取できる受話装置を提供することを目的とする。   Therefore, the present invention solves the above-described problems, and provides a receiver that can be listened to necessary information clearly at the same time as it is lightweight, easy to wear, and effective receiving without burdening the user. Objective.
本発明は前記従来技術の課題を解決するために、以下の手段を採用した。本発明は、電気変換された音声信号を受信して音声振動を発生する振動部材と、前記振動部材に接合し、中央部に耳甲介腔部から外耳道の入口にいたる部分に挿入できる突起部が設けられている振動伝達部材で成る受信部をヘッドアームで支持してヘッドセットを構成し、前記振動伝達部材として比重が0.05以下の発泡スチロールもしくは同等の機械的性質を有する物質で構成される受話装置であり、また、本発明は、前記振動部材と前記振動伝達部材とは一体の骨伝導音並びに気導音のスピーカを形成し、前記スピーカは、前記振動伝達部材を介して、前記振動部材の発生した音声振動を一部は気導音として外耳道に伝達し、一部は耳介周辺の軟骨を介して骨伝導音を伝達することにより聞こえ易さを向上させた受話装置であり、また、本発明は、 前記スピーカの振動伝達部材は容易に着脱可能である受話装置である。   The present invention employs the following means in order to solve the problems of the prior art. The present invention relates to a vibrating member that receives a sound signal that has been electrically converted and generates a sound vibration, and a protrusion that is joined to the vibrating member and can be inserted into a central portion from the concha cavity portion to the entrance of the ear canal A receiving unit made up of a vibration transmitting member provided with a head arm is used to constitute a headset, and the vibration transmitting member is made of a polystyrene having a specific gravity of 0.05 or less or a material having equivalent mechanical properties. Further, in the present invention, the vibration member and the vibration transmission member form an integral bone conduction sound and air conduction sound speaker, and the speaker is connected to the vibration transmission member via the vibration transmission member. This is a receiver that improves the ease of hearing by transmitting part of the sound vibration generated by the vibration member to the external auditory canal as air conduction sound and partly transmitting bone conduction sound through the cartilage around the pinna. ,Also The present invention, the vibration transmitting member of the speaker is a receiver device which is easily removable.
即ち、本発明によれば、電気変換された音声信号を受信して音声振動を発生する振動部材と、前記振動部材を固定する基体と、前記基体及び前記振動部材に接合し、中央部に耳甲介腔部から外耳道の入口にいたる部分に挿入できる突起部が設けられた振動伝達部材とを備えた受信部をヘッドアームで支持してなり、前記振動伝達部材は比重が0.05以下であることを特徴とする受話装置が得られる。   That is, according to the present invention, a vibration member that receives an electrically converted sound signal and generates sound vibration, a base that fixes the vibration member, the base and the vibration member are joined, and an ear is provided at the center. A receiving portion provided with a vibration transmitting member provided with a protrusion that can be inserted into a portion from the concha cavity to the entrance of the ear canal, and the vibration transmitting member has a specific gravity of 0.05 or less A receiving device characterized by being present can be obtained.
また、本発明によれば、前記振動部材と前記振動伝達部材とが骨伝導音及び気導音のスピーカを形成し、前記スピーカは、前記振動伝達部材を介して、前記振動部材の発生した音声振動を一部は気導音として外耳道に伝達し、一部は耳介周辺の軟骨を介して骨伝導音を伝達するよう構成されたことを特徴とする上記の受話装置が得られる。   According to the present invention, the vibration member and the vibration transmission member form a bone conduction sound and air conduction sound speaker, and the speaker generates sound generated by the vibration member via the vibration transmission member. The above receiving device is characterized in that the vibration is partly transmitted as an air conduction sound to the external auditory canal and partly transmitted through a cartilage around the auricle and transmitted through a bone conduction sound.
また、本発明によれば、前記振動伝達部材は、前記基体から容易に着脱可能であることを特徴とする上記の受話装置が得られる。   Further, according to the present invention, there is obtained the above-described receiver, wherein the vibration transmission member can be easily detached from the base body.
さらに詳しくは、本発明は、ヘッドセット型の受話装置であり、その音響振動源は比重のきわめて小さな振動伝達部材に接触して振動を効率よく伝える。振動伝達部材の表面からは空気中に音声が放射され、外耳道を通じて鼓膜経由で気導音として聴覚神経に伝わるが、振動伝達部材が接触する耳介周辺の軟骨に音響振動が伝搬して、骨伝導音としても聴覚神経に達する。この結果、小さな入力電力ながら大音響の音声を聴感として感じることが出来るために高騒音下で効率の良い受話が可能となる。また、振動伝達部材を着脱可能とすることで、汚れた場合に容易に新規品と交換できることをその要旨とする。   More specifically, the present invention is a headset-type receiver, and its acoustic vibration source contacts a vibration transmission member having a very small specific gravity and efficiently transmits vibration. Sound is emitted from the surface of the vibration transmitting member into the air and is transmitted to the auditory nerve through the eardrum through the ear canal as an air conduction sound, but acoustic vibration propagates to the cartilage around the auricle where the vibration transmitting member contacts, It reaches the auditory nerve as a conduction sound. As a result, since a large acoustic sound can be felt as an auditory sensation with a small input power, an efficient reception can be performed under high noise. Further, the gist of the invention is that the vibration transmitting member can be attached and detached so that it can be easily replaced with a new product when it becomes dirty.
本発明は、高騒音下で使用者に負担が少なく、同時に効率のよい音声受話について鋭意検討した結果、振動伝達部材に比重のきわめて小さな物質例えば発泡スチロールや、乾燥上がりの紙粘土のような物質を音声の振動伝達部材として耳介に押し当てた場合、振動伝達部材の表面から発する音声と同時に、振動伝達部材が耳介周辺の軟骨に接触して伝搬する骨伝導音の双方を同時に聴取でき、低レベルの入力ながら大きな音声として感じることが可能であることを確認したものである。一方で比重が1程度の樹脂やゴム、木材などでは表面の振動振幅が小さくなり聴感のレベルは大幅に落ちてくる。また、前記伝達部材の中央部に耳甲介腔部から外耳道にいたる部分まで挿入できる突起部を設けることにより外部雑音の侵入に対して遮音効果が高まると共に、振動伝達部材と耳介の軟骨の部分との接触状態が向上し音響の伝搬効率が高まることが確認された。さらに、振動伝達部材が発泡スチロールや、紙粘土のような安価な材料で構成することができるために、このような材料の選択により、使い捨てとすることが可能であり清潔な受話装置の提供が可能となり、受話装置全体の軽量化にもきわめて有効な材料選択である。   In the present invention, as a result of diligent study on efficient voice reception with less burden on the user under high noise, a material having a very low specific gravity, such as styrene foam or paper clay after drying, is used for the vibration transmitting member. When pressed against the auricle as an audio vibration transmission member, simultaneously with the sound emitted from the surface of the vibration transmission member, both the bone conduction sound that propagates in contact with the cartilage around the auricle can be heard at the same time, It was confirmed that it is possible to feel as a loud voice while inputting at a low level. On the other hand, with resin, rubber, wood, or the like having a specific gravity of about 1, the vibration amplitude of the surface becomes small, and the level of audibility drops significantly. In addition, by providing a projection that can be inserted from the concha cavity to the ear canal at the center of the transmission member, the sound insulation effect is enhanced against the intrusion of external noise, and the vibration transmission member and the cartilage of the auricle are It was confirmed that the contact state with the portion was improved and the acoustic propagation efficiency was increased. Furthermore, since the vibration transmitting member can be made of an inexpensive material such as polystyrene foam or paper clay, it can be made disposable by selecting such a material, and a clean receiving device can be provided. Thus, the material selection is extremely effective for reducing the weight of the entire receiver.
前述の如く、本発明によれば、軽量で装着が容易で使用者に負担を与えずに騒音環境にあっても必要な音声情報を明瞭に聴取、送信できる受話装置の提供が可能となる。   As described above, according to the present invention, it is possible to provide a receiver that can be listened to and transmitted necessary voice information clearly even in a noisy environment without being burdened on the user by being light and easy to wear.
本発明による受話装置は、電気変換された音声信号を受信して音声振動を発生する振動部材と、前記振動部材に接合し中央部に耳甲介腔部から外耳道入口にいたる部分に挿入できる突起部が設けられている振動伝達部材から成る受信部をアームで支持したヘッドセットを構成している。前記振動部材と前記振動伝達部材とは一体の骨伝導音並びに気導音のスピーカを形成しており、前記スピーカ部は、前記振動伝達部材を介して、前記振動部材の発生した前記音声振動を一部は気導音として外耳道に伝達し、一部は耳介周辺の軟骨を介して骨伝導音を伝達する。前記振動伝達部材は比重がきわめて小さい材質(比重0.05以下(0を含まず))で構成される。また、中央部に耳甲介腔部から外耳道にいたる部分まで挿入できる突起部を設けているため外部雑音の侵入に対して遮音効果が高まると共に、振動伝達部材と耳介の軟骨部との接触状態が向上し音響の伝搬効率を高めることができる。さらに、前記振動伝達部材は容易に着脱できる構成として、汚れた場合に新規なものに交換できるようにすることが望ましい。   A receiving device according to the present invention includes a vibration member that receives an electrically converted sound signal and generates sound vibration, and a protrusion that is joined to the vibration member and can be inserted into a central portion from a concha cavity portion to an ear canal entrance. The headset which comprised the receiving part which consists of a vibration transmission member with which the part was provided with the arm is comprised. The vibration member and the vibration transmission member form an integral bone conduction sound and air conduction sound speaker, and the speaker unit transmits the sound vibration generated by the vibration member via the vibration transmission member. Some transmit air conduction sound to the external auditory canal, and some transmit bone conduction sound through the cartilage around the pinna. The vibration transmitting member is made of a material having a very small specific gravity (specific gravity of 0.05 or less (excluding 0)). In addition, since a projection that can be inserted from the concha cavity to the ear canal is provided in the center, the sound insulation effect is enhanced against the intrusion of external noise, and the contact between the vibration transmitting member and the cartilage of the auricle The state is improved and the propagation efficiency of sound can be increased. Furthermore, it is desirable that the vibration transmitting member can be easily attached and detached so that it can be replaced with a new one when it becomes dirty.
図1は、本発明の受話装置の原理を示す図である。ここで、振動部材4は増幅電気音声信号を音声振動に変換するデバイスである。このデバイスとしては、小型・軽量かつ変位量と発生力が共に大きい電気−機械変換機能を備えた圧電バイモルフ素子を有機物で被覆してなる振動体を使用するのが良い。振動部材4は、外耳道に挿入可能な形状の振動伝達部材5に接合されており、振動伝達部材5には中央部に耳甲介腔部から外耳道にいたる部分まで挿入できる突起部8が設けられている。振動伝達部材5は、周囲からの騒音を遮断すると共に振動伝達の効率を上げている。振動部材4は、前記増幅電気音声信号に応じて音声振動を発生し、前記音声振動は、外耳道に挿入された振動伝達部材5の突起部8を介して、外耳道6の入口周囲の軟骨6に伝わり、使用者には、前記音声或いは音声信号が骨導音として聴取できる。即ち、振動部材4と振動伝達部材5は気導スピーカ並びに骨伝導スピーカを構成する。   FIG. 1 is a diagram showing the principle of a receiver according to the present invention. Here, the vibration member 4 is a device that converts an amplified electric sound signal into sound vibration. As this device, it is preferable to use a vibrating body in which a piezoelectric bimorph element having an electro-mechanical conversion function which is small and light and has both a large displacement and a large generated force is coated with an organic substance. The vibration member 4 is joined to a vibration transmission member 5 having a shape that can be inserted into the ear canal, and the vibration transmission member 5 is provided with a projection 8 that can be inserted from the concha cavity portion to the portion of the ear canal at the center. ing. The vibration transmission member 5 blocks noise from the surroundings and increases the efficiency of vibration transmission. The vibration member 4 generates a sound vibration in response to the amplified electric sound signal, and the sound vibration is transmitted to the cartilage 6 around the entrance of the ear canal 6 through the protrusion 8 of the vibration transmitting member 5 inserted into the ear canal. The user can hear the sound or the sound signal as a bone conduction sound. That is, the vibration member 4 and the vibration transmission member 5 constitute an air conduction speaker and a bone conduction speaker.
(実施例1)
以下、具体的な例を挙げ、本発明の受話装置についてさらに詳しく説明する。図2は、実施例における受話装置の基本構成を示す説明図である。図2に示すように、本実施例による受話装置は、振動部材4と、振動伝達部材5と、基体14と、固定用ゴムバンド16とで形成された受信部を備えている。樹脂で成形された円柱形の基体14には振動部材4が厚みの半分だけ挿入できる窪みが形成されている。同様に振動部材4の厚みの半分が挿入できる窪みの形成された発泡スチロールで構成された周辺が円柱形で基体14と直径を同じとする振動伝達部材5と密着するように周辺を固定用ゴムバンド16で弾性的に結合されている。この窪みは図面上では省略してある。基体14は機械的に緩いヒンジ機構30でヘッドアーム15の両端にそれぞれ固定され使用者が両耳に装着できるようにヘッドセットを構成している。この基体14と振動伝達部材5の固定方法は容易に着脱可能な、ねじ方式であっても、バネによるストッパー方式の固定でも良い。
Example 1
Hereinafter, a specific example is given and the receiver of this invention is demonstrated in more detail. FIG. 2 is an explanatory diagram illustrating a basic configuration of the receiver in the embodiment. As shown in FIG. 2, the receiver according to the present embodiment includes a receiving unit formed of a vibration member 4, a vibration transmission member 5, a base 14, and a fixing rubber band 16. The cylindrical base 14 formed of resin is formed with a recess into which the vibration member 4 can be inserted by half the thickness. Similarly, a rubber band for fixing the periphery so that the periphery made of foamed polystyrene in which a half of the thickness of the vibration member 4 can be inserted is in close contact with the vibration transmission member 5 having a cylindrical shape and the same diameter as the base 14 16 is elastically coupled. This recess is omitted in the drawing. The base body 14 is fixed to both ends of the head arm 15 by a mechanically loose hinge mechanism 30 and constitutes a headset so that the user can wear it on both ears. The fixing method of the base 14 and the vibration transmitting member 5 may be an easily removable screw type or a stopper type fixing with a spring.
図3は、実施例における振動部材の断面図である。本実施例では振動部材4として、圧電バイモルフ素子19を使用した。この圧電バイモルフ素子19は、弾性板18を介して2枚の圧電セラミックス板17を接合したものである。具体的には、2枚の圧電セラミックス板17にはNECトーキン(株)製の圧電セラミックス(商品名ネペック10)を用い、その寸法は、長さ30mm、幅3mm、厚さ0.2mmとした。また、弾性板18は厚さ50μmの真鍮板を使用し、その長さと幅は圧電セラミックス板17とほぼ同寸法にした。これらをエポキシ系接着剤で貼り合わせ、圧電セラミックス板17の外側の主面には電極を設け、この電極と弾性板18との間に前記増幅電気音声信号が入力されるように配線した(尚、電極及び配線は図示せず)。   FIG. 3 is a cross-sectional view of the vibration member in the embodiment. In this embodiment, a piezoelectric bimorph element 19 is used as the vibration member 4. The piezoelectric bimorph element 19 is obtained by joining two piezoelectric ceramic plates 17 via an elastic plate 18. Specifically, the piezoelectric ceramic plates (trade name Nepec 10) manufactured by NEC TOKIN Corporation were used for the two piezoelectric ceramic plates 17, and the dimensions were 30 mm in length, 3 mm in width, and 0.2 mm in thickness. . The elastic plate 18 was a brass plate having a thickness of 50 μm, and the length and width thereof were almost the same as those of the piezoelectric ceramic plate 17. These are bonded together with an epoxy-based adhesive, and an electrode is provided on the outer main surface of the piezoelectric ceramic plate 17, and wiring is performed between the electrode and the elastic plate 18 so that the amplified electrical audio signal is input (note that , Electrodes and wiring are not shown).
本実施例では、圧電セラミックス板17は一層が50μmの内部電極を印刷したセラミックスシートを厚み方向に4層積層し、一体焼成した積層圧電セラミックス板を用いた。さらに、一層毎に内部電極を二つのグループに分けて層毎に分極と電圧印加が出来る構成とした。この構成は、駆動電圧を大幅に低減できる利点がある。   In this embodiment, the piezoelectric ceramic plate 17 is a laminated piezoelectric ceramic plate in which four layers of ceramic sheets on which an internal electrode having a thickness of 50 μm is printed are laminated in the thickness direction and integrally fired. Further, the internal electrodes are divided into two groups for each layer, and the structure is such that polarization and voltage application can be performed for each layer. This configuration has the advantage that the drive voltage can be greatly reduced.
この圧電バイモルフ素子19の全表面を有機材料32で覆い、振動部材4とした。有機材料32には液状ウレタンゴムを使用し、厚さ方向の二面に約2mmの厚さで被覆層を形成した。   The entire surface of the piezoelectric bimorph element 19 was covered with the organic material 32 to form the vibration member 4. Liquid urethane rubber was used for the organic material 32, and a coating layer was formed with a thickness of about 2 mm on two surfaces in the thickness direction.
振動部材4は前記増幅電気音声信号に応じて、撓みによる機械振動を発生する。この機械振動は、音声振動として振動伝達部材5に伝わる。振動伝達部材5の中央部は耳甲介腔部に挿入しやすい曲面を持つ形状とした。本実施例では、圧電バイモルフ素子は、駆動電圧の低下のために積層構造としてあるが、電圧の問題がなければ単板構造でも良い。   The vibration member 4 generates mechanical vibration due to bending in accordance with the amplified electrical audio signal. This mechanical vibration is transmitted to the vibration transmission member 5 as voice vibration. The center of the vibration transmitting member 5 has a curved surface that can be easily inserted into the concha cavity. In this embodiment, the piezoelectric bimorph element has a laminated structure in order to reduce the drive voltage, but may have a single plate structure if there is no problem with voltage.
振動伝達部材としての発泡スチロールの比重を0.02〜0.07に変えて、図2の受話装置を作製し、聴感を評価した。   The receiver of FIG. 2 was produced by changing the specific gravity of the polystyrene foam as the vibration transmitting member to 0.02 to 0.07, and the audibility was evaluated.
(実施例2)
実施例1と同様にして、振動伝達部材として紙粘土を用い、その比重を0.03〜0.08に変えて、図2の受話装置を作製し、聴感を評価した。
(Example 2)
In the same manner as in Example 1, paper clay was used as the vibration transmitting member, the specific gravity was changed from 0.03 to 0.08, and the receiver of FIG.
(従来例1)
従来例1として、振動伝達部材に、比重1.3のシリコーンゴムを用いて、図2の構造の受話装置を作製した。各部の寸法は、実施例1、2と同様とした。実施例1、2と同様に、聴感を評価した。
(Conventional example 1)
As Conventional Example 1, a receiver having the structure shown in FIG. 2 was fabricated using silicone rubber having a specific gravity of 1.3 as a vibration transmitting member. The dimensions of each part were the same as in Examples 1 and 2. The audibility was evaluated in the same manner as in Examples 1 and 2.
(従来例2)
従来例2として、振動伝達部材に、比重1.1のウレタンゴムを用いて、図2の構造の受話装置を作製した。各部の寸法は、実施例1、2と同様とした。実施例1、2と同様に、聴感を評価した。
(Conventional example 2)
As Conventional Example 2, a receiver having the structure shown in FIG. 2 was manufactured using urethane rubber having a specific gravity of 1.1 as a vibration transmitting member. The dimensions of each part were the same as in Examples 1 and 2. The audibility was evaluated in the same manner as in Examples 1 and 2.
表1に、実施例1、2、従来例1、2の受話装置における聴感を評価した結果を示す。評価はホワイトノイズ90dB下の状態で、作製した受話装置を用いて、ラジオ放送を聴衆して行い、明瞭に聞き取れた場合を○(聴感が良い)、聞き取れない場合を×で示した。   Table 1 shows the results of evaluating the audibility in the receivers of Examples 1 and 2 and Conventional Examples 1 and 2. The evaluation was performed under the condition of white noise of 90 dB by using the produced receiver, and the radio broadcast was performed by the audience.
表1に示すように、実施例1、2の発泡スチロール、紙粘土のいずれの場合にも、比重が0.05以下の場合は聴感が非常に良かったが、それ以上になると全く聞こえなくなるわけではないが、聴感が悪くなるため、比重の最適な範囲は0.05以下であると判断した。   As shown in Table 1, in both cases of the polystyrene foams of Examples 1 and 2 and paper clay, the audibility was very good when the specific gravity was 0.05 or less, but when it was more than that, it could not be heard at all. Although there was no audibility, the optimum range of specific gravity was determined to be 0.05 or less.
以上述べた如く、本発明によれば、軽量で装着が容易で使用者に負担を与えず、高騒音環境にあっても必要な音声情報を明瞭に聴取でき、その上、清潔な受話装置の提供が可能となる。   As described above, according to the present invention, it is lightweight, easy to wear, does not give a burden to the user, and can clearly hear necessary voice information even in a high noise environment. Provision is possible.
本発明は、特に、騒音の激しい環境において音声信号送受信する受話装置として利用できるほか、オーディオ装置や携帯端末機器等の音声の送受信に利用できる。   In particular, the present invention can be used as a receiver for transmitting and receiving audio signals in a noisy environment, and can also be used for audio transmission and reception of audio devices and portable terminal devices.
本発明における受話装置の原理を示す図。The figure which shows the principle of the receiver in this invention. 本発明の実施例における受話装置の基本構成を示す説明図。Explanatory drawing which shows the basic composition of the receiver in the Example of this invention. 本発明の実施例における振動部材の断面図。Sectional drawing of the vibration member in the Example of this invention. 従来の受話装置の斜視図。The perspective view of the conventional receiver. 従来の圧電型骨伝導スピーカの断面図。Sectional drawing of the conventional piezoelectric bone conduction speaker.
符号の説明Explanation of symbols
4 振動部材
5 振動伝達部材
6 軟骨
8 突起部
13、20 受話装置
14 基体
15 ヘッドアーム
16 固定用ゴムバンド
17 圧電セラミックス板
18 弾性板
19、71 圧電バイモルフ素子
21 骨伝導マイクロフォン
22 骨伝導スピーカ
23 遮音用イヤーマフ
24 イヤーパッド
27 ハウジング
28 ヘッドバンド
30 ヒンジ機構
32 有機材料
72 エラストマ材
73 振動体
74 ケース
75 支持部材
76 伝達部材
4 Vibrating member 5 Vibration transmitting member 6 Cartilage 8 Protruding portion 13, 20 Receiver 14 Base 15 Head arm 16 Fixing rubber band 17 Piezoelectric ceramic plate 18 Elastic plate 19, 71 Piezoelectric bimorph element 21 Bone conduction microphone 22 Bone conduction speaker 23 Sound insulation Ear muff 24 ear pad 27 housing 28 headband 30 hinge mechanism 32 organic material 72 elastomer material 73 vibrating body 74 case 75 support member 76 transmission member

Claims (3)

  1. 電気変換された音声信号を受信して音声振動を発生する振動部材と、前記振動部材を固定する基体と、前記基体及び前記振動部材に接合し、中央部に耳甲介腔部から外耳道の入口にいたる部分に挿入できる突起部が設けられた振動伝達部材とを備えた受信部をヘッドアームで支持してなり、前記振動伝達部材は比重が0.05以下であることを特徴とする受話装置。   A vibration member that receives an audio signal that has been electrically converted to generate sound vibration, a base that fixes the vibration member, a base that is bonded to the base and the vibration member, and an entrance of the ear canal from the concha cavity to the center A receiver having a vibration transmitting member provided with a protrusion that can be inserted in a portion extending to the head, and a head arm supporting the receiving unit, wherein the vibration transmitting member has a specific gravity of 0.05 or less. .
  2. 前記振動部材と前記振動伝達部材とが骨伝導音及び気導音のスピーカを形成し、前記スピーカは、前記振動伝達部材を介して、前記振動部材の発生した音声振動を一部は気導音として外耳道に伝達し、一部は耳介周辺の軟骨を介して骨伝導音を伝達するよう構成されたことを特徴とする請求項1記載の受話装置。   The vibration member and the vibration transmission member form a bone conduction sound and air conduction sound speaker, and the speaker partially transmits sound vibration generated by the vibration member via the vibration transmission member. The earpiece according to claim 1, wherein the earpiece is transmitted to the external auditory canal and a part thereof is configured to transmit a bone conduction sound via cartilage around the pinna.
  3. 前記振動伝達部材は、前記基体から容易に着脱可能であることを特徴とする請求項1又は2記載の受話装置。   The receiving device according to claim 1, wherein the vibration transmitting member is easily detachable from the base body.
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US10380864B2 (en) 2014-08-20 2019-08-13 Finewell Co., Ltd. Watching system, watching detection device, and watching notification device
US10356231B2 (en) 2014-12-18 2019-07-16 Finewell Co., Ltd. Cartilage conduction hearing device using an electromagnetic vibration unit, and electromagnetic vibration unit
US10848607B2 (en) 2014-12-18 2020-11-24 Finewell Co., Ltd. Cycling hearing device and bicycle system
US10967521B2 (en) 2015-07-15 2021-04-06 Finewell Co., Ltd. Robot and robot system
US10795321B2 (en) 2015-09-16 2020-10-06 Finewell Co., Ltd. Wrist watch with hearing function
US10778824B2 (en) 2016-01-19 2020-09-15 Finewell Co., Ltd. Pen-type handset
JP2018093516A (en) * 2018-01-24 2018-06-14 BoCo株式会社 Listening device utilizing bone conduction

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