JPH0819092A - Speaker diaphragm and method of manufacturing the same - Google Patents
Speaker diaphragm and method of manufacturing the sameInfo
- Publication number
- JPH0819092A JPH0819092A JP6143716A JP14371694A JPH0819092A JP H0819092 A JPH0819092 A JP H0819092A JP 6143716 A JP6143716 A JP 6143716A JP 14371694 A JP14371694 A JP 14371694A JP H0819092 A JPH0819092 A JP H0819092A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- speaker
- base material
- polymer resin
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
(57)【要約】
【目的】 音響出力機器などに用いるスピーカの振動板
およびエッジにおいて、従来の高分子樹脂フィルムを用
いた同一素材での振動板-エッジ一体成形品が抱えてい
た、材料の物理特性を変化させることによって広帯域化
を図ろうとしたときに生じる矛盾を解消し、広帯域、低
歪み、高音質であり、工法上においても高精度、高生産
性である振動板−エッジ一体成形品を提供することを目
的とする。
【構成】 本発明のスピーカ用振動板は、基材の繊維織
物の振動板部分１に高剛性高分子樹脂を、エッジ部分２
に可撓性高分子樹脂を、また必要であれば適当な部所に
適切な高分子材料をスクリーン印刷し、熱成形プレスを
行なうことによって振動板−エッジ一体成形品を得ると
いう構成をとる。
(57) [Abstract] [Purpose] For the diaphragm and edge of the speaker used for audio output equipment, etc., the material of the diaphragm-edge integrated product made of the same material using the conventional polymer resin film was held. A diaphragm-edge integrated product that eliminates the contradiction that occurs when trying to broaden the band by changing the physical characteristics, has wide band, low distortion, high sound quality, and is highly accurate and highly productive in terms of construction method The purpose is to provide. According to the speaker diaphragm of the present invention, a high-rigidity polymer resin is applied to the diaphragm portion 1 of the base fiber fabric and the edge portion 2 is used.
Then, a flexible polymer resin and, if necessary, an appropriate polymer material are screen-printed on an appropriate portion and subjected to a thermoforming press to obtain a diaphragm-edge integrated product.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、音響出力機器等に用い
るスピーカ用振動板およびその製造方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker diaphragm used in an acoustic output device and the like, and a method for manufacturing the diaphragm.
【０００２】[0002]
【従来の技術】近年、オーディオ関連業界においては、
再生音楽ソースのデジタル化に伴い、音響出力機器とし
てのスピーカには、従来よりもさらに高音質化が望まれ
ている。2. Description of the Related Art Recently, in the audio industry,
With the digitization of reproduced music sources, higher quality sound is demanded for a speaker as an audio output device than ever before.
【０００３】従来の振動板-エッジの一体成形品は、例
えば電話器や携帯式の小型音響機器、パーソナルコンピ
ュータなどに使用される口径が Φ４０ミリ以下のマイ
クロスピーカの場合においては、生産性向上のため、ほ
とんどが、高分子樹脂フィルムを用いた同一材料による
振動板−エッジの一体成形品であり、振動板およびエッ
ジ部分に要求される材料の物理特性が同時に反映され
ず、特性に歪みが生じる原因となっている。またそれ以
上の口径をもつ汎用スピーカにおける振動板−エッジの
一体成形では、異種材料間の成形条件などの確立が困難
であり、成形設備が複雑化するため一般化されていない
のが現状である。A conventional diaphragm-edge integrally molded product improves productivity in the case of a micro speaker having a diameter of 40 mm or less, which is used in, for example, a telephone, a portable small audio device, a personal computer and the like. Therefore, most of them are diaphragm-edge integrally molded products made of the same material using polymer resin film, and the physical characteristics of the material required for the diaphragm and the edge portion are not reflected at the same time, and distortion occurs in the characteristics. It is the cause. Further, in the integral molding of the diaphragm and the edge in a general-purpose speaker having a diameter larger than that, it is difficult to establish molding conditions between different materials, and molding equipment becomes complicated, so that it is not generalized at present. .
【０００４】[0004]
【発明が解決しようとする課題】スピーカ用振動板に要
求される物理的特性の一つは、その材料の剛性であり、
その物性の向上は、面共振などの分割振動を抑制させ歪
み率の低減を実現し、より高域の周波数成分を再生可能
とする。またエッジ材料に要求される物理特性は、材料
の柔軟性であり、振動板との歪みを押さえ、より低域の
周波数成分を再生可能とする。よって、振動板およびエ
ッジが要求する物理特性を両立させるためには、異種材
料を用いた構造が必要とされる。One of the physical characteristics required of a speaker diaphragm is the rigidity of its material,
The improvement in the physical properties realizes the reduction of the distortion rate by suppressing the divisional vibration such as the surface resonance, and enables the reproduction of the higher frequency components. The physical property required for the edge material is flexibility of the material, which suppresses distortion with the diaphragm and enables reproduction of lower frequency components. Therefore, in order to satisfy both the physical properties required for the diaphragm and the edge, a structure using different materials is required.
【０００５】しかしマイクロスピーカの場合、構造上の
問題やコスト的メリットから ポリエチレンテレフタレ
ート（ＰＥＴ）樹脂やポリカーボネート（ＰＣ）樹脂フ
ィルムなどの単一材料による振動板−エッジ一体成形が
一般的である。このような単一材料による一体成形品で
は高域限界周波数（以降、ｆhとよぶ）を向上させるた
めに振動板の剛性を高めれば、エッジのスティフネスが
あがるため最低共振周波数（以降、ｆ0とよぶ）も同時
に高域にシフトし、逆にｆ0を下げるためにエッジのス
ティフネスを下げれば、振動板の剛性が低下しｆhが低
域にシフトする。すなわち周波数特性を広帯域化するた
めに両者が要求する条件が同時に反映されることはな
く、特性は狭帯域となる。しかも再生信号の要求するス
ピーカのエッジおよび振動板本来の動きが制限されるた
め、過度な歪みが発生し、２０〜２００００Ｈｚの帯域
で再生されるコンパクトディスクやＰＣＭ音源などのＨ
ｉＦｉ音声を再現することが困難であった。However, in the case of a microspeaker, diaphragm-edge integral molding using a single material such as polyethylene terephthalate (PET) resin or polycarbonate (PC) resin film is common because of structural problems and cost advantages. In such an integrally molded product made of a single material, if the rigidity of the diaphragm is increased in order to improve the high frequency limit frequency (hereinafter referred to as fh), the stiffness of the edge is increased, so that the lowest resonance frequency (hereinafter referred to as f0). ) Also shifts to the high range at the same time, and conversely, if the stiffness of the edge is lowered to reduce f0, the rigidity of the diaphragm is lowered and fh shifts to the low range. That is, the conditions required by both of them in order to widen the frequency characteristic band are not reflected at the same time, and the characteristic becomes a narrow band. Moreover, since the edge of the speaker and the original movement of the diaphragm required by the reproduction signal are limited, excessive distortion occurs and H of compact discs or PCM sound sources reproduced in the band of 20 to 20000 Hz.
It was difficult to reproduce the i-Fi voice.
【０００６】またそれ以上での口径をもち、振動板とエ
ッジに異種材料を用いたスピーカにおいても、振動板−
エッジの一体成形は異種材料間の成形条件などの確立が
困難、成形設備の複雑化、などの理由から一般化されて
おらず、専ら別ピースで作成後、接着工程にて両者を張
り合わせているのが現状である。そのため被接着物の剥
離問題、揮発溶媒成分など接着剤に関する多くの問題を
抱えている。Further, even in a speaker having a diameter larger than that and using different materials for the diaphragm and the edge, the diaphragm-
The integral molding of the edge has not been generalized because it is difficult to establish the molding conditions between different materials and the molding equipment is complicated, etc. is the current situation. Therefore, there are many problems regarding the adhesive such as the peeling problem of the adherend and the volatile solvent component.
【０００７】本願は上記問題に鑑み、異種材料を用い
て、スピーカの振動板およびエッジが要求する相反する
物理特性を満たすことにより、現状の高分子樹脂フィル
ム単一の材料を用いた振動板に比して、高帯域、高音質
であり、さらに振動板-エッジ一体成形法も簡略化し、
あらゆるダイナミックスピーカの振動板材料およびその
製造方法として応用可能な技術を提供するものである。In view of the above problems, the present application provides a diaphragm using a single material of the current polymer resin film by satisfying the contradictory physical characteristics required by the diaphragm and the edge of the speaker by using different materials. In comparison, it has a high bandwidth and high sound quality, and simplifies the diaphragm-edge integral molding method.
The present invention provides a diaphragm material for all dynamic speakers and a technique applicable as a manufacturing method thereof.
【０００８】[0008]
【課題を解決するための手段】これらの目的を達成する
ために、本発明のスピーカ用振動板は、基材とする繊維
織物の振動板部分に高剛性高分子樹脂を、またエッジ部
分に可撓性高分子樹脂を、さらに分割共振、内部損失、
剛性、歪み率、平坦性、音圧などを向上させ音響特性を
改善するための必要に応じて適当な部所に所定の高分子
樹脂材料を塗布あるいは含浸し、熱成形プレスを行なっ
て振動板−エッジ一体成形品を得るものである。In order to achieve these objects, the speaker diaphragm of the present invention is provided with a high rigidity polymer resin in the diaphragm part of the fiber woven fabric as a base material, and in the edge part. Flexible polymer resin, split resonance, internal loss,
The vibration plate is coated with or impregnated with a predetermined polymer resin material at an appropriate place as necessary to improve rigidity, strain rate, flatness, sound pressure, etc. and acoustic characteristics, and then a thermoforming press is performed. -To obtain an edge-integrated molded product.
【０００９】また、本発明のスピーカ用振動板の製造方
法は、繊維織物を基材とし、成形後音響特性に影響を及
ぼす主要部分に、それぞれの性能を最も引き出すように
選択あるいは調製された高分子樹脂を含浸、塗布、ある
いは貼付し、同一基材上に相反する物理特性を呈する複
数の異種材料を配置して複数主要部分の一体成形を可能
としたことを特徴とするスピーカ用振動板において、基
材の繊維織物が、成形後振動板、エッジなどの主要とな
る部位に異種材料である高分子樹脂を含浸あるいは塗布
するにあたり、スクリーン印刷によって複数個を同時プ
リントし、一度の工程で多数個のスピーカ用振動板を生
産可能にしたことを特徴とするものである。Further, in the method for manufacturing a speaker diaphragm of the present invention, a fiber woven fabric is used as a base material, and high-performance materials selected or prepared so as to bring out their respective performances to the main parts that influence the acoustic characteristics after molding. A speaker diaphragm characterized by impregnating, coating, or pasting a molecular resin, and disposing a plurality of different materials having contradictory physical properties on the same base material to enable integral molding of a plurality of main parts When the fiber fabric of the base material is impregnated or coated with a polymer resin, which is a different material, on the main parts such as the diaphragm and the edge after molding, multiple pieces are printed simultaneously by screen printing, and many can be printed in one step. The feature is that it is possible to produce individual speaker diaphragms.
【００１０】さらに、本発明のスピーカ用振動板は、繊
維織物を基材とし、成型後振動板となる部分に高剛性高
分子樹脂、エッジとなる部分に可撓性高分子樹脂を含浸
あるいは塗布することにより、同一基材上に相反する物
理特性を呈する異種材料を配置して振動板およびエッジ
の一体成形を可能としたことを特徴とするスピーカ用振
動板において、樹脂の含浸量を調整した２種の繊維織物
基材を用い、含浸濃度が高く、剛性の高い方の織布基材
を適当な形状に打ち抜き、剛性の低い方の織布材料に重
ねて、加熱プレスにより含浸樹脂を溶融させることで、
基材を接着させ一体成型したことを特徴とするものであ
る。Further, the speaker diaphragm of the present invention is made of a fiber woven material as a base material, and a high rigidity polymer resin is impregnated or applied to a portion which becomes a diaphragm after molding and a flexible polymer resin to an edge portion. In this way, the amount of resin impregnation was adjusted in the speaker diaphragm, in which dissimilar materials exhibiting contradictory physical properties were arranged on the same substrate to enable integral molding of the diaphragm and the edge. Using two kinds of fibrous woven fabric base material, the woven fabric base material with high impregnation concentration and high rigidity is punched out into an appropriate shape, laminated on the woven fabric material with lower rigidity, and the impregnated resin is melted by heating press. By letting
It is characterized in that a base material is adhered and integrally molded.
【００１１】さらに本発明のスピーカ用振動板は、繊維
織物を基材とし、成形後音響特性に影響を及ぼす主要部
分に、それぞれの性能を最も引き出すように選択あるい
は調製された高分子樹脂を含浸、塗布、あるいは貼付
し、同一基材上に相反する物理特性を呈する複数の異種
材料を配置して複数主要部分の一体成形を可能とし、繊
維の紡糸工程において、表面に熱可塑性高分子樹脂を塗
布してできた二重層の繊維を織布とした材料を用いたス
ピーカ用振動板において、基材を金型内で加熱し表面層
の高分子樹脂のみを溶融、冷却固化させることによって
振動板部分の剛性を向上させたことを特徴とするもので
ある。Further, the speaker diaphragm of the present invention comprises a fiber woven fabric as a base material, and impregnates a polymer resin selected or prepared so as to bring out the respective performances to the main parts which influence the acoustic characteristics after molding. , Coating or pasting, and disposing a plurality of different materials exhibiting contradictory physical properties on the same base material to enable integral molding of a plurality of main parts, and a thermoplastic polymer resin on the surface in the fiber spinning process. In a diaphragm for a speaker using a material in which a double-layer fiber formed by coating is used as a woven material, the diaphragm is prepared by heating a base material in a mold to melt and cool and solidify only a polymer resin in a surface layer. The feature is that the rigidity of the portion is improved.
【００１２】[0012]
【作用】この振動板材料の基材に用いられている繊維織
物は、極細化された繊維による織物であり、高剛性化、
繊維間の相互摩擦による高内部損失、繊維間の空隙によ
る軽量化が図られる。これを以下、図１を用いて説明す
る。[Function] The fiber woven fabric used as the base material of the diaphragm material is a woven fabric made of ultrafine fibers, and has high rigidity,
High internal loss due to mutual friction between fibers, and weight reduction due to voids between fibers. This will be described below with reference to FIG.
【００１３】同図（ａ）に示すように、基材織布の、例
えば成型後振動板となる部分１に高剛性高分子樹脂を、
さらにエッジとなる部分２に可撓性高分子樹脂を含浸ま
たは塗布し、熱成型プレスを行なってできた振動板−エ
ッジ一体成型品は、振動板、エッジそれぞれに要求され
る物理特性を有する異種材料によって構成されているた
め、同一材料で構成されている振動板−エッジ一体成型
品を用いたスピーカに比べ、広帯域、低歪み、高音圧な
音響特性を備えたスピーカを得ることができる。As shown in FIG. 1 (a), a high-rigidity polymer resin is applied to, for example, a portion 1 of the base material woven fabric which will be a diaphragm after molding.
Further, the diaphragm-edge integrally molded product obtained by impregnating or applying the flexible polymer resin on the edge portion 2 and performing the thermoforming press has different physical properties required for the diaphragm and the edge. Since they are made of the same material, it is possible to obtain a speaker having wide-band, low distortion, and high sound pressure acoustic characteristics, as compared with a speaker using a diaphragm-edge integrated molding made of the same material.
【００１４】同様に、図１（ｂ）に示すように、振動板
部分の剛性を高め、エッジ部分のスティフネスを低下さ
せるため、樹脂の含浸量を変えた２種の基材を用い、含
浸量の少ない基材１上の、成型後振動板となる部分に、
含浸量の多い基材３を所定の形状に打ち抜いて振動板部
分１に重ね、接着あるいは熱可塑性素材を用いた融着に
よる振動板複数枚を重ねた構造が考えられる。さらに、
図１（ｃ）に示すように、振動板部分１に別工程により
無機金属４を蒸着し、またはダイヤモンド被膜などの無
機化合物４を形成させて、振動板の剛性を向上させるこ
となどが考えられる。Similarly, as shown in FIG. 1 (b), in order to increase the rigidity of the diaphragm portion and reduce the stiffness of the edge portion, two kinds of base materials having different resin impregnation amounts are used. On the base material 1 which has less
It is conceivable that the base material 3 having a large amount of impregnation is punched into a predetermined shape and stacked on the vibration plate portion 1, and a plurality of vibration plates are stacked by adhesion or fusion using a thermoplastic material. further,
As shown in FIG. 1C, it is conceivable that the rigidity of the diaphragm is improved by vapor-depositing the inorganic metal 4 or forming the inorganic compound 4 such as a diamond coating on the diaphragm portion 1 in a separate step. .
【００１５】[0015]
（実施例１）高強度ポリエチレン繊維を用いた織布にお
いて、成形後振動板となる部分にはウレタン系樹脂３０
ｇ／ｍ2を エッジ部分にはゴム系樹脂１０ｇ／ｍ2量を
スクリーン印刷によって塗布し、プリプレグ化した後、
１８０℃で熱成形プレスを行なってスピーカ用振動板−
エッジ一体成形品とした。本第１実施例と従来例との違
いを分かりやすく示したのが、図２の音圧−周波数特性
図である。同図において、５は周波数特性、６はインピ
ーダンス特性、７は２次歪み特性、８は３次歪み特性を
それぞれ表している。(Example 1) In a woven fabric using high-strength polyethylene fiber, urethane resin 30
g / m 2 is applied to the edge portion with a rubber-based resin in an amount of 10 g / m 2 by screen printing to form a prepreg.
Performing thermoforming press at 180 ℃, speaker diaphragm-
Edge-molded product. The difference between the first embodiment and the conventional example is shown in a clearly understood manner in the sound pressure-frequency characteristic diagram of FIG. In the figure, 5 is a frequency characteristic, 6 is an impedance characteristic, 7 is a second-order distortion characteristic, and 8 is a third-order distortion characteristic.
【００１６】（実施例２）ポリエステル繊維を用いた織
布に、通気性のない程度にアクリル系樹脂５ｇ／ｍ2量
を含浸させ乾燥させる、成形後振動板となる部分にアク
リル系樹脂３０ｇ／ｍ2量を適量スクリーン印刷し、そ
の樹脂印刷部分に、あらかじめ振動板と同じ形状に打ち
抜いた３０ｇ／ｍ2量を含浸済みの基材織布を重ねて乾
燥後、材料厚を加味した金型を用いて、金型温度１８０
℃で熱成形プレスを行ない、スピーカ用振動板−エッジ
一体成形品とした。本第２実施例の音圧−周波数特性図
を図３に示す。同図において、５は周波数特性、６はイ
ンピーダンス特性、７は２次歪み特性、８は３次歪み特
性をそれぞれ表している。す。(Example 2) A woven fabric made of polyester fiber was impregnated with an amount of acrylic resin of 5 g / m 2 to the extent that there was no air permeability, and dried. A suitable amount of m 2 is screen-printed, and the resin-printed part is pre-punched into the same shape as the diaphragm, and the base material woven fabric impregnated with 30 g / m 2 is impregnated and dried. Mold temperature 180
A thermoforming press was performed at ℃ to obtain a speaker diaphragm-edge integrated product. A sound pressure-frequency characteristic diagram of the second embodiment is shown in FIG. In the figure, 5 is a frequency characteristic, 6 is an impedance characteristic, 7 is a second-order distortion characteristic, and 8 is a third-order distortion characteristic. You
【００１７】（実施例３）ポリエステル繊維を用いた織
布の、成形後振動板となる部分にアクリル樹脂３０ｇ／
ｍ2を、エッジ部分にはウレタン系樹脂１０ｇ／ｍ2をス
クリーン印刷によって適量塗布し、プリプレグ化した
後、金型温度１８０℃において熱成形プレスを行なっ
て、スピーカ用振動板−エッジ一体成形品とした。本第
３実施例の音圧−周波数特性図を図４に示す。同図にお
いて、５は周波数特性、６はインピーダンス特性、７は
２次歪み特性、８は３次歪み特性をそれぞれ表してい
る。(Embodiment 3) Acrylic resin 30 g /
m 2 and 10 g / m 2 of urethane resin at the edge are applied by screen printing to form a prepreg, and then thermoforming press is performed at a mold temperature of 180 ° C. to form a speaker diaphragm-edge integrated product. And A sound pressure-frequency characteristic diagram of the third embodiment is shown in FIG. In the figure, 5 is a frequency characteristic, 6 is an impedance characteristic, 7 is a second-order distortion characteristic, and 8 is a third-order distortion characteristic.
【００１８】（実施例４）ポリエステル繊維の紡糸工程
において、樹脂量１０ｇ／ｍ2となるように表面にアク
リル系樹脂を塗布してできた二重層の繊維を織布とした
材料を用いた基材を用い、振動板部分にエポキシ系樹脂
などの高剛性高分子樹脂をスクリーン印刷によって塗布
し、金型温度１８０℃で熱成形プレスを行なってスピー
カ用振動板-エッジ一体成形品とした。本第４実施例の
音圧−周波数特性図を図５に示す。同図において、５は
周波数特性、６はインピーダンス特性、７は２次歪み特
性、８は３次歪み特性をそれぞれ表している。(Example 4) In a spinning process of polyester fiber, a base material made of a woven fabric of a double-layer fiber formed by coating an acrylic resin on the surface so that the amount of resin is 10 g / m 2 Material, a high rigidity polymer resin such as epoxy resin was applied to the diaphragm by screen printing, and thermoforming press was performed at a mold temperature of 180 ° C. to obtain a diaphragm-edge integrated product for a speaker. A sound pressure-frequency characteristic diagram of the fourth embodiment is shown in FIG. In the figure, 5 is a frequency characteristic, 6 is an impedance characteristic, 7 is a second-order distortion characteristic, and 8 is a third-order distortion characteristic.
【００１９】（実施例５）ポリエステル繊維を用いた織
布に、２０ｇ／ｍ2量のアクリル樹脂を含浸させ乾燥さ
せる。この振動板材料を材料厚を加味した金型を用いて
金型温度１８０℃で熱成形プレスを行ない、密閉型スピ
ーカユニット用振動板-エッジ一体成形品とした。Example 5 A woven fabric using polyester fibers is impregnated with an acrylic resin in an amount of 20 g / m 2 and dried. A thermoforming press was performed at a die temperature of 180 ° C. using a die in which the thickness of this diaphragm material was taken into consideration to obtain a diaphragm-edge integrated product for a closed speaker unit.
【００２０】以上５つの実施例により、従来品に比べ広
帯域化、低歪率化が図られることが確認された。It has been confirmed that the above five examples can achieve a wider band and a lower distortion rate than the conventional products.
【００２１】[0021]
【発明の効果】以上のように、本発明のスピーカ用振動
板は、基材である極細繊維を用いた織布の振動板および
エッジ部分に、それぞれが要求する材料の物理特性を備
えた異種高分子樹脂を塗布して、振動板−エッジの一体
成形を行うことにより、従来の高分子樹脂フィルム単一
の材料による一体成型品が抱えていた、材料の物理特性
を変化させることによって広帯域化を図ろうとしたとき
に生じる矛盾を解消し、より広帯域で、低歪み、また素
材の軽量化による音圧の向上のみられる振動板−エッジ
一体成形品を実現できる。また、織布基材に任意の高分
子樹脂材料をスクリーン印刷工程で塗布することによ
り、精密性が向上し特性上のばらつきが低減する。ま
た、本発明のスピーカ用振動板の製造方法によれば、複
数個を同時に製造することが可能であり、かつ量産性に
優れたコストメリットの高い振動板−エッジ一体成形品
の製造が可能となる。As described above, in the speaker diaphragm of the present invention, the diaphragm and the edge portion of the woven cloth using the ultrafine fibers as the base material have different physical properties of the required materials. By applying polymer resin and integrally forming the diaphragm and edge, the band can be broadened by changing the physical characteristics of the material that the conventional polymer resin film integrally molded product had. Therefore, it is possible to eliminate the contradiction that occurs when attempting to achieve the above, and to realize a diaphragm-edge integrated molded product that has a wider band, lower distortion, and improved sound pressure due to the weight reduction of the material. Further, by applying an arbitrary polymer resin material to the woven fabric base material in the screen printing process, precision is improved and variation in characteristics is reduced. Further, according to the method of manufacturing a diaphragm for a speaker of the present invention, it is possible to manufacture a plurality of diaphragms at the same time, and it is possible to manufacture a diaphragm-edge integrated molded product which is excellent in mass productivity and has a high cost advantage. Become.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明のスピーカ用振動板とエッジ一体成型品
の構成図FIG. 1 is a block diagram of a speaker diaphragm and an edge-integrated molded product of the present invention
【図２】本発明のスピーカ用振動板および従来例の音圧
−周波数特性図FIG. 2 is a sound pressure-frequency characteristic diagram of the speaker diaphragm of the present invention and a conventional example.
【図３】本発明の実施例２におけるスピーカ用振動板の
音圧−周波数特性図FIG. 3 is a sound pressure-frequency characteristic diagram of the speaker diaphragm according to the second embodiment of the present invention.
【図４】本発明の実施例３におけるスピーカ用振動板の
音圧−周波数特性図FIG. 4 is a sound pressure-frequency characteristic diagram of a speaker diaphragm according to a third embodiment of the present invention.
【図５】本発明の実施例４におけるスピーカ用振動板の
音圧−周波数特性図FIG. 5 is a sound pressure-frequency characteristic diagram of the speaker diaphragm according to the fourth embodiment of the present invention.
１ 振動板部分 ２ エッジ部分 ３ 含浸量の多い基材 ４ 無機金属、無機化合物 1 Diaphragm part 2 Edge part 3 Base material with high impregnation amount 4 Inorganic metal, inorganic compound
Claims (20)
響を及ぼす主要部分に、それぞれの性能を最も引き出す
ように選択あるいは調製された高分子樹脂を含浸、塗
布、あるいは貼付し、同一基材上に相反する物理特性を
呈する複数の異種材料を配置して複数主要部分の一体成
形を可能としたことを特徴とするスピーカ用振動板。1. A fiber woven fabric as a base material, and a polymer resin selected or prepared so as to bring out the best performance of each, is impregnated, applied or attached to a main part that influences acoustic characteristics after molding, and the same. A speaker diaphragm, wherein a plurality of different materials exhibiting contradictory physical properties are arranged on a base material to enable integral molding of a plurality of main parts.
部分に高剛性高分子樹脂、エッジとなる部分に可撓性高
分子樹脂を含浸あるいは塗布することにより、同一基材
上に相反する物理特性を呈する異種材料を配置して、振
動板およびエッジの一体成形を可能としたことを特徴と
する請求項１記載のスピーカ用振動板。2. A fiber woven fabric is used as a base material, and a high rigidity polymer resin is impregnated in a portion which will be a vibration plate after molding and a flexible polymer resin is applied in an edge portion, so that the same base material is formed. 2. The speaker diaphragm according to claim 1, wherein different kinds of materials exhibiting contradictory physical characteristics are arranged so that the diaphragm and the edge can be integrally formed.
響を及ぼす主要部分に、それぞれの性能を最も引き出す
ように選択あるいは調製された高分子樹脂を含浸、塗
布、あるいは貼付し、同一基材上に相反する物理特性を
呈する複数の異種材料を配置して複数主要部分の一体成
形を可能としたことを特徴とするスピーカ用振動板にお
いて、基材の繊維織物が、成形後振動板、エッジなどの
主要となる部位に異種材料である高分子樹脂を含浸ある
いは塗布するにあたり、スクリーン印刷によって複数個
を同時プリントし、一度の工程で多数個のスピーカ用振
動板を生産可能にしたことを特徴とするスピーカ用振動
板の製造方法。3. A fiber woven fabric as a base material, and a main part which influences acoustic characteristics after molding is impregnated, coated or attached with a polymer resin selected or prepared so as to maximize each performance, and the same. A speaker diaphragm, wherein a plurality of different materials exhibiting contradictory physical properties are arranged on a base material to enable integral molding of a plurality of main parts. In order to impregnate or apply polymer resin, which is a different material, to main parts such as edges, it is possible to simultaneously print a plurality of parts by screen printing and to produce a large number of speaker diaphragms in one step. And a method for manufacturing a speaker diaphragm.
ムを用い、基材と一体熱成型プレスすることにより、振
動板およびエッジ各主要部分に適当な含浸を行なうこと
を特徴とする請求項３記載のスピーカ用振動板の製造方
法。4. A thermoplastic polymer resin film is used as the impregnating resin, and by integrally thermoforming with the base material, proper impregnation is performed on the diaphragm and each major portion of the edge. Manufacturing method of diaphragm for speaker.
樹脂を基材に含浸、塗布、または貼付させた基材を用い
ることにより、熱成形プレス時に、剛性を向上させるこ
とを目的として、複数枚重ねの振動板材料を同時に融着
させたことを特徴とする請求項３記載のスピーカ用振動
板の製造方法。5. A base material obtained by impregnating, coating or adhering a base material with a thermoplastic polymer resin or a thermosetting polymer resin is used for the purpose of improving rigidity during thermoforming pressing. The method for manufacturing a speaker diaphragm according to claim 3, wherein a plurality of diaphragm materials are fused at the same time.
め、その部分のみを振動板として用い、基材の単一部分
はエッジとして利用したことを特徴とする請求項１記載
のスピーカ用振動板。6. The vibration for a speaker according to claim 1, wherein rigidity is increased by laminating a plurality of base materials, only that portion is used as a diaphragm, and a single portion of the base material is used as an edge. Board.
ラメントの本数を調整することにより振動板およびエッ
ジ部分に適当なスティフネスを与えたことを特徴とする
請求項１記載のスピーカ用振動板。7. The speaker diaphragm according to claim 1, wherein the diaphragm and the edge portion are provided with appropriate stiffness by adjusting the number of denier or the number of multifilaments of the base fiber fabric.
共振を取り除くためのダンピング剤を塗布したことを特
徴とする請求項１記載のスピーカ用振動板。8. The diaphragm for a speaker according to claim 1, wherein a damping agent for removing unnecessary resonance is applied to an edge or a predetermined portion of the diaphragm.
部分に高剛性高分子樹脂、エッジとなる部分に可撓性高
分子樹脂を含浸あるいは塗布することにより、同一基材
上に相反する物理特性を呈する異種材料を配置して振動
板およびエッジの一体成形を可能としたことを特徴とす
るスピーカ用振動板において、樹脂の含浸量を調整した
２種の繊維織物基材を用い、含浸濃度が高く、剛性の高
い方の織布基材を適当な形状に打ち抜き、剛性の低い方
の織布材料に重ねて、加熱プレスにより含浸樹脂を溶融
させることで、基材を接着させ一体成型したことを特徴
とするスピーカ用振動板の製造方法。9. A fiber woven fabric is used as a base material, and a high rigidity polymer resin is impregnated into a portion which will be a diaphragm after molding, and a flexible polymer resin is applied to an edge portion, so that the same base material is formed. In a diaphragm for a speaker, which is capable of integrally forming a diaphragm and an edge by disposing different kinds of materials exhibiting contradictory physical characteristics, two kinds of fiber woven fabric base materials having an adjusted resin impregnation amount are used. The woven fabric base material with high impregnation concentration and high rigidity is punched out into an appropriate shape, and the woven cloth base material with lower rigidity is stacked, and the impregnated resin is melted by hot pressing to bond the base material. A method of manufacturing a speaker diaphragm, which is integrally molded.
に、高デニールの繊維あるいは、フィラメントの本数を
増やした糸を交差させ格子目状にしたことを特徴とする
請求項１記載のスピーカ用振動板。10. A fiber woven fabric as a base material, wherein fibers of high denier or yarns having an increased number of filaments are crossed at equal intervals in the longitudinal and transverse directions to form a lattice pattern. A diaphragm for speakers.
記載のスピーカ用振動板。11. A polyester fiber as a base material.
The diaphragm for the speaker described.
のスピーカ用振動板。12. The speaker diaphragm according to claim 1, wherein the base material is nylon fiber.
記載のスピーカ用振動板。13. The epoxy resin as the impregnating resin.
The diaphragm for the speaker described.
記載のスピーカ用振動板。14. The impregnating resin is an acrylic resin.
The diaphragm for the speaker described.
記載のスピーカ用振動板。15. The urethane resin is used as the impregnating resin.
The diaphragm for the speaker described.
工程により無機金属を蒸着して振動板のスティフネスを
高めたことを特徴とするスピーカ用振動板。16. A diaphragm for a speaker according to claim 1, wherein an inorganic metal is vapor-deposited on the diaphragm for a speaker according to a separate step to enhance the stiffness of the diaphragm.
工程によりダイヤモンド被膜を形成させて振動板のステ
ィフネスを高めたことを特徴とするスピーカ用振動板。17. A diaphragm for a speaker according to claim 1, wherein a diamond film is formed on the diaphragm for a speaker according to another step to enhance the stiffness of the diaphragm.
性高分子樹脂を塗布してできた二重層の繊維を織布とし
た材料を用いた請求項１記載のスピーカ用振動板。18. The speaker diaphragm according to claim 1, wherein in the fiber spinning step, a material in which a double-layer fiber formed by applying a thermoplastic polymer resin on the surface is woven cloth is used.
脂のみを溶融、冷却固化させることによって振動板部分
の剛性を向上させたことを特徴とする請求項３記載のス
ピーカ用振動板の製造方法。19. The speaker according to claim 3, wherein the rigidity of the diaphragm portion is improved by heating the base material in a mold to melt and cool and solidify only the polymer resin of the surface layer. Method of manufacturing diaphragm.
影響を及ぼす主要部分に、それぞれの性能を最も引き出
すように選択あるいは調製された高分子樹脂を含浸、塗
布、あるいは貼付し、同一基材上に相反する物理特性を
呈する複数の異種材料を配置して複数主要部分の一体成
形を可能とし、繊維の紡糸工程において、表面に熱可塑
性高分子樹脂を塗布してできた二重層の繊維を織布とし
た材料を用いたスピーカ用振動板において、基材を金型
内で加熱し表面層の高分子樹脂のみを溶融、冷却固化さ
せることによって振動板部分の剛性を向上させたことを
特徴とするスピーカ用振動板の製造方法。20. The same material is obtained by impregnating, coating, or sticking a polymer resin selected or prepared so as to bring out the respective performances to the main part that influences the acoustic characteristics after molding, using a fiber woven fabric as a base material. A plurality of different materials exhibiting contradictory physical properties are arranged on the base material to enable integral molding of a plurality of main parts, and in the fiber spinning process, a double layer of a thermoplastic polymer resin is applied to the surface. In a speaker diaphragm using a material made of woven fiber, the rigidity of the diaphragm was improved by heating the base material in the mold and melting and cooling and solidifying only the polymer resin in the surface layer. And a method for manufacturing a speaker diaphragm.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14371694A JP3211566B2 (en) | 1994-06-27 | 1994-06-27 | Speaker diaphragm and manufacturing method thereof |
| DE69427942T DE69427942T2 (en) | 1993-06-28 | 1994-06-28 | Membrane-bead-integrated molded body for loudspeakers, acoustic transducers and processes for their production |
| US08/266,924 US5744761A (en) | 1993-06-28 | 1994-06-28 | Diaphragm-edge integral moldings for speakers and acoustic transducers comprising same |
| EP94304708A EP0632675B1 (en) | 1993-06-28 | 1994-06-28 | Diaphragm-edge integral moldings for speakers, acoustic transducers comprising same and method for fabricating same |
| EP99103452A EP0942625A3 (en) | 1993-06-28 | 1994-06-28 | Method for fabricating diaphragm-edge integral molding for speakers |
| US09/000,922 US6039145A (en) | 1993-06-28 | 1997-12-30 | Diaphragm-edge integral moldings for speakers, acoustic transducers comprising same and method for fabricating same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14371694A JP3211566B2 (en) | 1994-06-27 | 1994-06-27 | Speaker diaphragm and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0819092A true JPH0819092A (en) | 1996-01-19 |
| JP3211566B2 JP3211566B2 (en) | 2001-09-25 |
Family
ID=15345331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14371694A Expired - Lifetime JP3211566B2 (en) | 1993-06-28 | 1994-06-27 | Speaker diaphragm and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3211566B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001197590A (en) * | 2000-01-12 | 2001-07-19 | Matsushita Electric Ind Co Ltd | Edge of speaker diaphragm and manufacturing method thereof |
| JP2002232990A (en) * | 2000-07-19 | 2002-08-16 | Onkyo Corp | Speaker member and method of manufacturing the same |
| WO2003098967A1 (en) * | 2002-05-20 | 2003-11-27 | Matsushita Electric Industrial Co.,Ltd. | Edge for speaker diaphragm and method for manufacturing the same |
| JP2020099049A (en) * | 2018-12-14 | 2020-06-25 | 株式会社オーディオテクニカ | Acoustic diaphragm, method of manufacturing acoustic diaphragm, and electroacoustic transducer |
| US11019443B2 (en) | 2018-08-30 | 2021-05-25 | Seiko Epson Corporation | Speaker diaphragm including cone formed of material including fibers derived from plant and resin, speaker unit, speaker, and method for manufacturing speaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111935605B (en) * | 2020-09-23 | 2021-01-22 | 歌尔股份有限公司 | Composite diaphragm of sound production device, preparation method of composite diaphragm and sound production device |
-
1994
- 1994-06-27 JP JP14371694A patent/JP3211566B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001197590A (en) * | 2000-01-12 | 2001-07-19 | Matsushita Electric Ind Co Ltd | Edge of speaker diaphragm and manufacturing method thereof |
| JP2002232990A (en) * | 2000-07-19 | 2002-08-16 | Onkyo Corp | Speaker member and method of manufacturing the same |
| WO2003098967A1 (en) * | 2002-05-20 | 2003-11-27 | Matsushita Electric Industrial Co.,Ltd. | Edge for speaker diaphragm and method for manufacturing the same |
| US6988584B2 (en) | 2002-05-20 | 2006-01-24 | Matsushita Electric Industrial Co., Ltd. | Speaker diaphragm edge and its manufacturing method |
| US11019443B2 (en) | 2018-08-30 | 2021-05-25 | Seiko Epson Corporation | Speaker diaphragm including cone formed of material including fibers derived from plant and resin, speaker unit, speaker, and method for manufacturing speaker |
| JP2020099049A (en) * | 2018-12-14 | 2020-06-25 | 株式会社オーディオテクニカ | Acoustic diaphragm, method of manufacturing acoustic diaphragm, and electroacoustic transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3211566B2 (en) | 2001-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5744761A (en) | Diaphragm-edge integral moldings for speakers and acoustic transducers comprising same | |
| US4291205A (en) | Laminated loudspeaker diaphragm with honeycomb core and damping layers | |
| CN101600134B (en) | Dome-shaped diaphragm and loudspeaker using the same | |
| KR101777832B1 (en) | Loudspeaker diaphragm and manufacturing method thereof | |
| NL8200690A (en) | SPEAKER MEMBRANE CONTAINING A LAYER OF POLYMETHACRYLIMIDE FOAM. | |
| US9485581B2 (en) | Method of manufacturing speaker with diaphragm arrangement | |
| JPH0819092A (en) | Speaker diaphragm and method of manufacturing the same | |
| JP2003219493A (en) | Speaker diaphragm | |
| JP3456819B2 (en) | Speaker and method of manufacturing the same | |
| JP2788998B2 (en) | Laminated materials for vibration parts and speaker vibration parts | |
| US4968551A (en) | Acoustic vibrator member and method of manufacturing | |
| JP2013236371A (en) | Diaphragm for speaker integrally formed with different degrees of rigidity in one polymeric film | |
| KR20060008875A (en) | High performance speaker cabinet consists of multiple materials for speakers | |
| JP4483460B2 (en) | Manufacturing method of speaker edge, speaker edge, speaker diaphragm and speaker using the same, electronic device, and apparatus | |
| JPH06165289A (en) | Speaker diaphragm and method of manufacturing the same | |
| JPS63280600A (en) | Composite diaphragm for speakers | |
| JP3142703B2 (en) | Speaker diaphragm and manufacturing method thereof | |
| JP3387370B2 (en) | Speaker diaphragm | |
| JP2005012500A (en) | Speaker diaphragm and manufacturing method thereof, speaker using the diaphragm, electronic apparatus using the speaker, and apparatus using the speaker | |
| JP2629347B2 (en) | Method of manufacturing speaker damper | |
| JP2712459B2 (en) | Speaker diaphragm | |
| JP3052577B2 (en) | Speaker diaphragm | |
| JPS58107800A (en) | Rectangular flat plate diaphragm | |
| JPS59135000A (en) | Composite diaphragm for speaker | |
| CN1307437A (en) | Composite loudspeaker diaphragm and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070719 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080719 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090719 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090719 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100719 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110719 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110719 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120719 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120719 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130719 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |