JP3456819B2 - Speaker and method of manufacturing the same - Google Patents
Speaker and method of manufacturing the sameInfo
- Publication number
- JP3456819B2 JP3456819B2 JP4808296A JP4808296A JP3456819B2 JP 3456819 B2 JP3456819 B2 JP 3456819B2 JP 4808296 A JP4808296 A JP 4808296A JP 4808296 A JP4808296 A JP 4808296A JP 3456819 B2 JP3456819 B2 JP 3456819B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- speaker
- conductor
- diaphragm
- resin
- 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.)
- Expired - Lifetime
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Nonwoven Fabrics (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ボイスコイルとフ
レームとを結合するリード線を工夫したスピーカ、及び
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 in which a lead wire for connecting a voice coil and a frame is devised, and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】一般的なスピーカにおいて、ボイスコイ
ルボビンからフレームに取り付けられた外部端子までは
リード線を用いて配線がなされている。ただし、ウーフ
ァーやフルレンジスピーカなど、大振幅によってリード
線の断線が生じる可能性がある場合は、ボイスコイルの
リードの端部とフレームの外部端子と間を金糸線で結線
し、その強度を高めることによって線材の断線を防いで
いる。2. Description of the Related Art In a general speaker, a lead wire is used to connect a voice coil bobbin to an external terminal attached to a frame. However, if there is a possibility of lead wire disconnection due to large amplitude, such as a woofer or a full-range speaker, connect a gold thread wire between the end of the voice coil lead and the external terminal of the frame to increase the strength. Prevents wire breakage.
【０００３】[0003]
【発明が解決しようとする課題】しかしボイスコイルと
リード線との局部的な接合により、ボイスコイルボビン
の円周方向において重量が不均一となることや、金糸線
がバネとして働く力、金糸線の特定周波数における共振
運動などが影響し、本来上下方向のみのピストニックな
運動のバランスがくずれてしまう。このためスピーカが
一定以上の電力で駆動されると、特定の周波数において
ローリング現象を生じ、音響特性上の歪みが発生した
り、スピーカそのものが破壊されてしまう恐れがあっ
た。However, due to the local joining of the voice coil and the lead wire, the weight becomes uneven in the circumferential direction of the voice coil bobbin, the force of the gold wire acts as a spring, The resonance motion or the like at a specific frequency affects the balance of the pistonic motion originally only in the vertical direction. For this reason, if the speaker is driven with a certain electric power or more, a rolling phenomenon may occur at a specific frequency, which may cause distortion in acoustic characteristics or destroy the speaker itself.
【０００４】口径が例えば２０〜４０mm程度の小型スピ
ーカの場合は、その薄型構造や量産性の面から、金糸線
を用いずに振動板に接着剤やグリスなどによってリード
線を固着させることが多い。しかしこの方法では大入力
時や低域再生時には断線を引き起こすため、小型スピー
カの広帯域化、耐入力化は容易ではない。In the case of a small speaker having a diameter of, for example, about 20 to 40 mm, in view of its thin structure and mass productivity, the lead wire is often fixed to the diaphragm by an adhesive or grease without using the gold thread wire. . However, this method causes disconnection at the time of large input or low-frequency reproduction, so that it is not easy to make a small speaker wide band and to withstand input.
【０００５】一般的なスピーカではボイスコイルボビン
から外部端子まで金属ワイヤによるリード線で配線がな
されているが、そのリード線が存在することによる入力
の制限、音響特性上の歪みの発生という問題が生じた。
また工法上もハンダ作業や配線の引き回し作業など高度
な技術が要求され、自動化に対応することが困難であっ
た。In a general speaker, a lead wire made of a metal wire is wired from the voice coil bobbin to the external terminal. However, the presence of the lead wire causes a problem of input limitation and distortion of acoustic characteristics. It was
Also, in terms of construction methods, advanced technology such as soldering work and wiring work was required, making it difficult to handle automation.
【０００６】本発明は、このような従来の問題点に鑑み
てなされたものであって、金属ワイヤによるリード線及
びハンダによる電気的結合を排除し、リード線が原因と
なっていた入力の制限及び音響特性上の歪みを低減し、
また工法上におけるハンダ作業工程を削減することので
きるスピーカ、及びその製造方法を実現することを目的
とする。The present invention has been made in view of the above-mentioned conventional problems, and eliminates the lead wire made of a metal wire and the electric coupling made by the solder, and limits the input caused by the lead wire. And reduce distortion on the acoustic characteristics,
Another object of the present invention is to realize a speaker and a manufacturing method thereof that can reduce the soldering work steps in the construction method.
【０００７】[0007]
【課題を解決するための手段】本願の請求項１記載の発
明は、繊維径１０〜１００μｍの繊維織布又は不織布か
ら成る基材、基材上に導電性ペーストを用いて塗布又は
印刷された一対の導体部及び、導体部の少なくとも一部
を覆うよう基材に塗布した樹脂層を含む振動板と、夫々
の導体部の一端を電気的に接続するように振動板の外周
部を弾性的に保持するスピーカフレームと、ボイスコイ
ルを回巻きし、ボイスコイルの一端と導体部の他端に接
続されたボイスコイルボビンと、を具備し、ボイスコイ
ルに対して振動板の導体部を介して駆動電流を与えるよ
うにしたことを特徴とする。According to the invention of claim 1 of the present application, a base material made of a fiber woven or non-woven fabric having a fiber diameter of 10 to 100 μm is applied or printed on the base material by using a conductive paste. A diaphragm including a pair of conductors and a resin layer applied to a base material so as to cover at least a part of the conductors, and an outer periphery of the diaphragm are elastically connected to electrically connect one end of each conductor. And a voice coil bobbin that is wound around the voice coil and is connected to one end of the voice coil and the other end of the conductor portion. The voice coil is driven through the conductor portion of the diaphragm. The feature is that an electric current is applied.
【０００８】本願の請求項２記載の発明は、繊維径１０
〜１００μｍの極細繊維織布又は不織布から成る基材に
導電性ペーストを用いて一対の導体部を塗布又は印刷
し、導体部の少なくとも一部を覆うよう樹脂を基材に塗
布し、樹脂が塗布された基材を所定の立体形状を有する
金型で熱成形プレスし、樹脂と基材の繊維とを複合化し
た部分を振動部及びエッジとする振動板を一体成形し、
ボイスコイルを回巻きしたボイスコイルボビンを振動板
の内周部に取り付け、外周に外部接続用の導体が形成さ
れたスピーカフレームに対して、振動板の外周部を接合
し、ボイスコイルに対して振動板の導体部を介して駆動
電流を与えるようにしたことを特徴とする。The invention according to claim 2 of the present application has a fiber diameter of 10
-100 μm ultrafine fiber woven fabric or non-woven fabric is coated or printed with a pair of conductors using a conductive paste, and a resin is applied to the substrate so as to cover at least a part of the conductors, and the resin is applied. The formed base material is thermoformed and pressed with a mold having a predetermined three-dimensional shape, and a diaphragm having a portion in which a resin and a base material fiber are combined as a vibrating portion and an edge is integrally formed,
A voice coil bobbin wound around a voice coil is attached to the inner peripheral portion of the diaphragm, and the outer peripheral portion of the diaphragm is joined to the speaker frame with the conductor for external connection formed on the outer periphery, and the voice coil is vibrated. It is characterized in that the drive current is applied through the conductor portion of the plate.
【０００９】本願の請求項３記載の発明は、請求項１記
載のスピーカにおいて、振動板の外周部とフレームの外
周部のうち、少なくとも導体部の接続部分は、導電性接
着材を用いて接合されたことを特徴とする。According to a third aspect of the present invention, in the loudspeaker according to the first aspect, at least the connecting portion of the conductor portion of the outer peripheral portion of the diaphragm and the outer peripheral portion of the frame is joined using a conductive adhesive. It is characterized by being done.
【００１０】本願の請求項４記載の発明は、請求項１記
載のスピーカにおいて、スピーカフレームは、導体部の
形成された振動板の接続部分と外部端子との間に、導電
性ペーストを用いて配線が施されたものであることを特
徴とする。According to a fourth aspect of the present invention, in the speaker according to the first aspect, the speaker frame uses a conductive paste between the connecting portion of the diaphragm having the conductor portion and the external terminal. It is characterized by being provided with wiring.
【００１１】本願の請求項５記載の発明は、請求項１記
載のスピーカにおいて、導電性ペーストは、銀、銅、ア
ルミ又はそれらの合金を微粉末として樹脂に添加した材
料であることを特徴とする。According to a fifth aspect of the present invention, in the speaker according to the first aspect, the conductive paste is a material in which silver, copper, aluminum or an alloy thereof is added as fine powder to a resin. To do.
【００１２】本願の請求項６記載の発明は、請求項２記
載のスピーカの製造方法において、導電性ペーストは、
銀、銅、アルミ又はそれらの合金を微粉末として樹脂に
添加した材料であることを特徴とする。According to a sixth aspect of the present invention, in the method of manufacturing a speaker according to the second aspect, the conductive paste is
It is characterized in that it is a material in which silver, copper, aluminum or an alloy thereof is added as fine powder to a resin.
【００１３】本願の請求項７記載の発明は、繊維径１０
〜１００μｍからなる繊維織布又は不織布を基材とし、
基材に導電性ペーストを用いて複数の導体部を同時にス
クリーン印刷し、導体部の少なくとも一部を覆うよう樹
脂を一定の間隔で基材に複数箇所に塗布し、樹脂が塗布
された基材の各部分を所定の立体形状を有する金型で熱
成形プレスし、樹脂と基材の繊維とを複合化した部分を
振動部及びエッジとする振動板を同時に複数組一体成形
し、ボイスコイルを回巻きした各ボイスコイルボビンを
各振動板の内周部に取り付け、外周に外部接続用の導体
が形成された各スピーカフレームに対して、各振動板の
外周部を接合することにより、複数のスピーカを製造す
ることを特徴とする。The invention according to claim 7 of the present application provides a fiber diameter of 10
A fiber woven or non-woven fabric composed of
Screen printing a plurality of conductor parts at the same time using a conductive paste on the base material, apply resin to the base material at multiple points at regular intervals so as to cover at least a part of the conductor part, and the base material coated with resin Each part of the above is thermoformed and pressed with a mold having a predetermined three-dimensional shape, and a plurality of vibration plates having a vibrating part and an edge of the part where the resin and the fiber of the base material are combined are integrally molded together to form a voice coil. By attaching each wound voice coil bobbin to the inner circumference of each diaphragm and joining the outer circumference of each diaphragm to each speaker frame with a conductor for external connection formed on the outer circumference, a plurality of speakers are joined. Is manufactured.
【００１４】本願の請求項８記載の発明は、繊維径１０
〜１００μｍからなるロール状の繊維織布又は不織布を
基材とし、帯状に基材を引き出し、一定の間隔を保ちな
がら複数のノズルから導電性ペーストを流出させ連続的
に帯状の基材に塗布あるいは含浸させて複数の導体部を
形成し、導体部の少なくとも一部を覆うよう樹脂を一定
の間隔で基材に複数箇所に塗布し、樹脂が塗布された基
材の各部分を所定の立体形状を有する金型で熱成形プレ
スし、樹脂と基材の繊維とを複合化した部分を振動部及
びエッジとする振動板を同時に複数組一体成形し、ボイ
スコイルを回巻きした各ボイスコイルボビンを各振動板
の内周部に取り付け、外周に外部接続用の導体が形成さ
れた各スピーカフレームに対して、各振動板の外周部を
接合することにより、複数のスピーカを一連の工程で製
造するようにしたことを特徴とする。The invention according to claim 8 of the present application provides a fiber diameter of 10
A roll-shaped fiber woven fabric or non-woven fabric of 100 μm to 100 μm is used as a base material, the base material is drawn out in a band shape, and the conductive paste is flowed out from a plurality of nozzles while maintaining a constant interval, or continuously applied to the band-shaped base material. A plurality of conductors are formed by impregnation, and resin is applied to the base material at multiple points at regular intervals so as to cover at least a part of the conductors, and each part of the base material coated with the resin has a predetermined three-dimensional shape. Thermoforming and pressing with a die having a resin, a plurality of diaphragms having a vibrating part and an edge of a composite of resin and fiber of the base material are integrally molded at the same time, and each voice coil bobbin is formed by winding a voice coil. A plurality of speakers can be manufactured in a series of steps by joining the outer peripheral portion of each diaphragm to each speaker frame that is attached to the inner peripheral portion of the diaphragm and has a conductor for external connection formed on the outer periphery. Made And wherein the door.
【００１５】本願の請求項９記載の発明は、請求項２、
６、７、８のいずれか１項記載のスピーカの製造方法に
おいて、基材に樹脂を塗布する工程として、基材の振動
部及びエッジ部となる部分に夫々振動特性の異なる高分
子樹脂を塗布又は印刷することを特徴とする。The invention according to claim 9 of the present application is based on claim 2,
9. In the method for manufacturing a speaker according to any one of 6, 7, and 8, as a step of applying a resin to a base material, a polymer resin having different vibration characteristics is applied to a vibrating portion and an edge portion of the base material. Alternatively, it is characterized by printing.
【００１６】本願の請求項１０記載の発明は、請求項
２、６、７、８のいずれか１項記載のスピーカの製造方
法において、基材に導電性ペーストを塗布又は印刷する
工程として、一対の導体部の絶縁のための間隔を隔てて
振動部の全面に導電性ペーストを塗布することにより、
振動部の剛性を高めることで分割共振を抑えると共に、
導体部の幅を大きくることにより電気的抵抗を減少させ
ることを特徴とする。According to a tenth aspect of the present invention, in the method of manufacturing a speaker according to any one of the second, sixth, seventh and eighth aspects, a pair of conductive pastes is applied or printed on the base material to form a pair. By applying a conductive paste over the entire surface of the vibrating part at a distance for insulation of the conductor part of
While suppressing the split resonance by increasing the rigidity of the vibrating part,
It is characterized in that the electrical resistance is reduced by increasing the width of the conductor portion.
【００１７】本願の請求項１１記載の発明は、請求項
２、６、７、８のいずれか１項記載のスピーカの製造方
法において、基材に導電性ペーストを塗布又は印刷する
工程として、スピーカの垂直軸に対して対象なパターン
が配置されるよう導体部を形成することにより、振動部
の面重量のバランスを保持すると共に、部分的に生じる
剛性の偏りを減少させて振動板の分割共振を抑えること
を特徴とする。The invention according to claim 11 of the present application is the method of manufacturing a speaker according to any one of claims 2, 6, 7, and 8, wherein the step of applying or printing a conductive paste on a base material is a speaker. By forming the conductor part so that the target pattern is arranged with respect to the vertical axis of, the balance of the surface weight of the vibrating part is maintained, and the partial deviation of the rigidity is reduced, and the division resonance of the diaphragm is reduced. It is characterized by suppressing.
【００１８】本願の請求項１２記載の発明は、請求項
２、６、７、８のいずれか１項記載のスピーカの製造方
法において、基材に導電性ペーストを塗布又は印刷する
工程として、スピーカの垂直軸に対して非対象なパター
ンが配置されるよう導体部を形成することにより、振動
部の面重量のバランスを崩すと共に、部分的に剛性の偏
りを生じさせて振動板の分割共振を抑えることを特徴と
する。According to a twelfth aspect of the present invention, in the method for manufacturing a speaker according to any one of the second, sixth, seventh and eighth aspects, the step of applying or printing the conductive paste on the base material is performed by the speaker. By forming the conductor part so that an asymmetrical pattern is arranged with respect to the vertical axis of the, the balance of the surface weight of the vibrating part is disturbed, and the partial deviation of the rigidity is caused to cause the divided resonance of the diaphragm. It is characterized by suppressing.
【００１９】本願の請求項１３記載の発明は、請求項１
記載のスピーカにおいて、振動板は、振動部が楕円形の
場合、導体部が振動部の長径方向と平行に複数組形成さ
れ、剛性などの物理特性において短径方向と故意に異方
性を生じさせることで振動板の分割共振をおさえて歪み
を低減させたものであることを特徴とする。The invention according to claim 13 of the present application is based on claim 1.
In the speaker described above, when the vibrating part has an elliptical shape, a plurality of conductor parts are formed in parallel with the major axis direction of the vibrating part, and physical properties such as rigidity intentionally cause anisotropy with the minor axis direction. It is characterized in that the vibration is suppressed to suppress the division resonance of the diaphragm to reduce the distortion.
【００２０】以上のような構造と製造方法により、基材
である織布内部に入り込んだ導電性ペーストが反応後固
着し、繊維と一体化して複合素材を形成するため、例え
ばＰＥＴ樹脂やＰＣ樹脂フィルム面などに塗布しただけ
のものとは異なり、振動や密着性の低さが原因となる剥
離や反りなどの現象も生じることがない。従って、振動
板が強度的に優れた構造を有することとなり、耐入力の
向上および再生周波数の低域部への拡大すなわち、広帯
域化が可能となる。さらにリード線や金糸線の結線によ
るボイスコイルボビンのアンバランスが原因となった音
響特性上の歪みを低減させることができる。また金属ワ
イヤを用いたリード線を排除できるため、ハンダによる
接着工程が不要となり、スピーカの製造作業工程の自動
化が図られる。With the above structure and manufacturing method, the conductive paste that has entered the inside of the woven fabric as the base material is fixed after the reaction and is integrated with the fibers to form a composite material. For example, PET resin or PC resin. Unlike the case where only the film surface is coated, phenomena such as peeling and warping due to vibration and low adhesion do not occur. Therefore, the diaphragm has a structure excellent in strength, and it is possible to improve the withstand input and extend the reproduction frequency to the low frequency region, that is, widen the band. Further, it is possible to reduce the distortion in the acoustic characteristics caused by the imbalance of the voice coil bobbin due to the connection of the lead wire and the gold thread wire. Further, since the lead wire using the metal wire can be eliminated, the soldering process is not required, and the speaker manufacturing work process can be automated.
【００２１】[0021]
（実施の形態１）本発明の第１実施形態におけるスピー
カ及びその製造方法について、図１〜図９を参照しなが
ら説明する。図１に示すように、１０〜１００μｍの繊
維径、例えば繊維径２０μｍからなるポリエステル繊維
の平織り織布（厚さ５０μｍ）を振動板の基材１として
用いる。そしてその織布が振動板として成形された場合
に必要な余裕分を考慮し、ボイスコイルの直径よりやや
広めの幅で一定の間隔を保つように、１〜２ミリの線幅
で導電性ペースト２を基材１上に約１００μｍの厚さに
なるよう調整して塗布し、導体部３を形成する。(Embodiment 1) A speaker and a method of manufacturing the speaker according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a plain weave fabric (thickness: 50 μm) of a polyester fiber having a fiber diameter of 10 to 100 μm, for example, a fiber diameter of 20 μm is used as the substrate 1 of the diaphragm. In consideration of the margin required when the woven cloth is formed as a diaphragm, the conductive paste has a line width of 1 to 2 mm so as to keep a constant interval with a width slightly wider than the diameter of the voice coil. 2 is adjusted and applied to the base material 1 so as to have a thickness of about 100 μm, and the conductor portion 3 is formed.
【００２２】導電性ペースト２は、例えば銀、銅、アル
ミ又はそれらの合金など良導体を微粉末として樹脂に添
加した材料で構成する。導電性ペースト２を基材１状に
塗布する方法として、基材１を導体部の形成する方向に
移動させながら、２本のノズルから導電性ペーストを流
出させて連続的に帯状に形成すると、導体部３の生産性
が向上する。また基材１として図１に示すように一枚の
振動板が形成されるサイズのものを用いるより、織布又
は不織布を所定の幅で巻きロールとし、ロールからこの
基材を引き出しながら、ボイスコイルの径に合致するよ
うに一定の間隔を保ちながら２本のノズルから導電性ペ
ーストを流出させてもよい。The conductive paste 2 is made of a material in which a good conductor such as silver, copper, aluminum or an alloy thereof is added as fine powder to a resin. As a method of applying the conductive paste 2 on the base material 1, when the base material 1 is moved in the direction in which the conductor portion is formed, the conductive paste is made to flow out from two nozzles and continuously formed into a strip shape. The productivity of the conductor part 3 is improved. Further, as shown in FIG. 1, as the base material 1, one having a size capable of forming a single vibration plate is used, and a woven or non-woven fabric is wound into a roll with a predetermined width, and while the base material is pulled out from the roll, The conductive paste may be made to flow out from the two nozzles while keeping a constant interval so as to match the diameter of the coil.
【００２３】また導電性ペースト２を基材１に塗布する
ことにより導体部を形成する代わりに、ロール状の基材
１を所定量ずつ繰り出し、導体部のパターンをスクリー
ン印刷技術を用いて、複数組同時にプリントすると、生
産性が向上する。Further, instead of forming the conductor portion by applying the conductive paste 2 to the base material 1, the roll-shaped base material 1 is fed out by a predetermined amount, and the conductor portion pattern is formed by a plurality of screen printing techniques. The productivity is improved when the group prints at the same time.
【００２４】導電性ペースト２の塗布後、基材１全体を
所定の温度及び時間で乾燥させる。次に図２に示すよう
に、基材１の振動部となる部分に高剛性高分子樹脂４を
円形に塗布する。更に図３に示すように振動板のエッジ
となる部分に可撓性高分子樹脂５を塗布する。この場合
もロール状の基材１を所定量ずつ繰り出し、振動部及び
エッジとなる部分にそれらのパターンを複数組設け、ス
クリーン印刷技術を用いて同時にプリントすると、振動
板の生産性が向上する。そして高分子樹脂が塗布された
基材１に対して成形金型を用いて例えば２００℃、５分
間の熱圧縮成形を行う。After the conductive paste 2 is applied, the entire base material 1 is dried at a predetermined temperature and time. Next, as shown in FIG. 2, a high-rigidity polymer resin 4 is applied in a circular shape to the portion of the base material 1 that becomes the vibrating portion. Further, as shown in FIG. 3, the flexible polymer resin 5 is applied to the edge portion of the diaphragm. Also in this case, if the roll-shaped substrate 1 is fed out by a predetermined amount, a plurality of sets of these patterns are provided in the vibrating portion and the edge portion, and simultaneously printed by using the screen printing technique, the productivity of the vibrating plate is improved. Then, the base material 1 coated with the polymer resin is subjected to heat compression molding at 200 ° C. for 5 minutes using a molding die.
【００２５】こうして得られた成形品を図４に示すよう
に例えば直径３４ｍｍの鍔付きドーム状に打ち抜いて、
スピーカ用振動板６とする。次に図５に示すように、ボ
ビン７に端子８を設けてボイスコイル９を回巻きしたボ
イスコイルボビン１０を用意する。このボイスコイルホ
ビン１０に振動板６を接着し、導電性ペーストを用いて
ボビンの端子８と振動板上の導体部３とを電気的に接合
する。図６はこのようにして一体結合された振動板６の
外観図である。As shown in FIG. 4, the molded product thus obtained is punched out into a dome shape with a collar having a diameter of 34 mm, for example.
The speaker diaphragm 6 is used. Next, as shown in FIG. 5, a voice coil bobbin 10 in which a terminal 8 is provided on the bobbin 7 and a voice coil 9 is wound is prepared. The diaphragm 6 is adhered to the voice coil hobbin 10 and the terminal 8 of the bobbin and the conductor portion 3 on the diaphragm are electrically joined using a conductive paste. FIG. 6 is an external view of the diaphragm 6 integrally connected in this way.
【００２６】なお図１に示すように導体部３のパターン
は、平行な２本の帯状のものとしたが、２つの導体部は
互いに接触しない程度に幅を夫々広くとってもよい。即
ち、振動板の全面に導電性ペーストを塗布し、塗布され
た部分の剛性を高めることで、分割共振をおさえて歪み
を低減させ、これと同時に線幅を太くすることにより、
導体部の電気的抵抗を極力小さくしておく方法もある。As shown in FIG. 1, the conductor portion 3 has a pattern of two parallel strips, but the widths of the two conductor portions may be wide enough not to contact each other. That is, by applying a conductive paste to the entire surface of the diaphragm and increasing the rigidity of the applied part, the split resonance is suppressed and the distortion is reduced, and at the same time, the line width is increased.
There is also a method of minimizing the electric resistance of the conductor portion.
【００２７】また導電性ペーストを用いて導体部を形成
するに際し、スピーカの垂直軸に対して対象なパターン
を施すことで、面重量のバランスを保ち、また部分的に
生じる剛性の偏りを減少させたことによって、振動板の
分割共振を抑えて歪みを低減させることもできる。Further, when forming the conductor portion using the conductive paste, a symmetrical pattern is applied to the vertical axis of the speaker to keep the balance of surface weight and reduce the partial deviation of rigidity. As a result, it is possible to suppress the split resonance of the diaphragm and reduce the distortion.
【００２８】これとは逆に、導電性ペーストを用いて導
体部を形成するに際し、スピーカの垂直軸に対して非対
称的なパターンを施すことで、故意に面重量のバランス
を崩すことができる。こうすると部分的に剛性の偏りを
生じさせることになり、振動板の分割共振をおさえ、歪
みを低減させたことができる。On the contrary, when the conductor portion is formed by using the conductive paste, a pattern asymmetrical with respect to the vertical axis of the speaker is provided, whereby the balance of surface weight can be intentionally disturbed. In this case, the rigidity is partially biased, the divided resonance of the diaphragm is suppressed, and the distortion can be reduced.
【００２９】また振動板６の形状は、図１〜図６に示す
ものでは円形としたが、楕円形であってもよい。この場
合、導体部３を振動板の長径方向と平行に複数組形成す
ることにより、剛性などの物理特性において短径方向と
故意に異方性を生じさせることができる。こうすると振
動板６の分割共振をおさえて歪みを低減できる。The shape of the diaphragm 6 is circular in FIGS. 1 to 6, but may be elliptical. In this case, by forming a plurality of sets of the conductor portions 3 in parallel with the major axis direction of the diaphragm, it is possible to intentionally cause anisotropy in physical properties such as rigidity with respect to the minor axis direction. In this way, the division resonance of the diaphragm 6 can be suppressed and the distortion can be reduced.
【００３０】次に図７及び図８に示すように、振動板６
とフレーム１１の接合部分から外部端子板１２までの部
分に導電性ペースト１３を用いて配線を施す。図７は振
動板６の取り付け面から見たフレーム１１の上面図であ
る。フレーム１１の外周に沿って孔を多数設け、その一
部を導体の貫通孔１１ａ、１１ｂとする。この貫通孔１
１ａ、１１ｂのエッジとその周辺部、及びフレーム１１
の最外周の一部に導電性ペースト１３を塗布する。図８
はフレーム１１の裏側から見た下面図である。２つの貫
通孔１１ａ、１１ｂの間に外部端子板１２を取り付け、
貫通孔１１のエッジと外部端子の間に導電性ペースト１
３を塗布する。Next, as shown in FIG. 7 and FIG.
Wiring is performed using a conductive paste 13 from the joined portion of the frame 11 to the external terminal board 12. FIG. 7 is a top view of the frame 11 as seen from the mounting surface of the diaphragm 6. A large number of holes are provided along the outer periphery of the frame 11, and some of the holes are used as conductor through holes 11a and 11b. This through hole 1
Edges 1a and 11b and their peripheral portions, and the frame 11
The conductive paste 13 is applied to a part of the outermost periphery of the. Figure 8
FIG. 4 is a bottom view seen from the back side of the frame 11. Attach the external terminal board 12 between the two through holes 11a and 11b,
The conductive paste 1 is provided between the edge of the through hole 11 and the external terminal.
Apply 3.
【００３１】図９は図７のＡ−Ｂ線で切断した断面図で
ある。本図に示すように振動板６及びフレーム１１の接
着部と、外部端子板１２とが導通する。そして図７に示
すｃ、ｄの部分と、図６に示すａ、ｂの部分が夫々電気
的に結合するように位置合わせを行い、導電性接着材を
用いて振動板６の外周部とフレーム１１とを接着する。
なおフレーム１１におけるｃ、ｄ以外の部分は有機系接
着材を用いて固着する。FIG. 9 is a sectional view taken along the line AB of FIG. As shown in the figure, the bonding portion of the diaphragm 6 and the frame 11 and the external terminal plate 12 are electrically connected. Then, the portions c and d shown in FIG. 7 and the portions a and b shown in FIG. 6 are aligned so that they are electrically coupled to each other, and a conductive adhesive is used to form the outer peripheral portion of the diaphragm 6 and the frame. 11 and 11 are bonded.
The portions other than c and d in the frame 11 are fixed by using an organic adhesive.
【００３２】こうして得られたスピーカは、口径３６ｍ
ｍのスピーカユニットで２Ｗの耐入力特性を持つ。また
大振幅時の断線が生じにくいため、最低共振周波数をよ
り低域側に設定することが可能となった。さらにリード
線による不要共振音やローリング現象による歪みを低減
させることができた。本実施形態によるスピーカと従来
例のスピーカの耐入力と最低共振周波数を表１に示し、
音圧周波数特性図を図１０に示す。The speaker thus obtained has a diameter of 36 m.
m speaker unit with 2W input resistance. In addition, it is possible to set the lowest resonance frequency to the lower frequency side, because disconnection does not easily occur when the amplitude is large. Furthermore, it was possible to reduce the unnecessary resonance sound caused by the lead wire and the distortion caused by the rolling phenomenon. Table 1 shows the input resistance and the minimum resonance frequency of the speaker according to the present embodiment and the speaker of the conventional example.
A sound pressure frequency characteristic diagram is shown in FIG.
【表１】 [Table 1]
【００３３】表１に示すように、耐入力は０．５Ｗから
２．０Ｗに、最低共振周波数は５００Ｈｚから２００Ｈ
ｚに向上した。また図１０の曲線ｅは音圧周波数特性を
示し、（ａ）に示す従来例に比べ（ｂ）に示す本実施形
態では、低域及び中域において周波数ピークやディップ
が少なくなっていることが判る。なお図１０の曲線ｆは
２ｎｄ歪みを表す。As shown in Table 1, the load capacity is 0.5W to 2.0W and the minimum resonance frequency is 500Hz to 200H.
improved to z. Further, a curve e in FIG. 10 shows a sound pressure frequency characteristic, and in the present embodiment shown in (b), frequency peaks and dips are reduced in the low range and the middle range as compared with the conventional example shown in (a). I understand. The curve f in FIG. 10 represents 2nd distortion.
【００３４】（実施の形態２）次に基材である織布に導
電性ペーストを含浸して、基材の強度を改良した第２実
施形態について説明する。例えば図１１に示すように、
繊維径２０μｍからなるポリエステル繊維の平織り織布
の基材２１（厚さ５０μｍ）上に、導電性ペースト２２
を幅２ｍｍ、厚さ１００μｍとなるように塗布し、帯状
の導体部２３を形成する。(Embodiment 2) Next, a second embodiment in which the strength of the base material is improved by impregnating the woven cloth as the base material with a conductive paste will be described. For example, as shown in FIG.
A conductive paste 22 is formed on a base material 21 (thickness: 50 μm) of a plain weave cloth of polyester fibers having a fiber diameter of 20 μm.
To have a width of 2 mm and a thickness of 100 μm to form a strip-shaped conductor portion 23.
【００３５】次に導電性ペースト２２を所定の温度及び
時間で乾燥させる。そして成形金型を用いて２００℃、
５分間の熱圧縮成形を行い、試験片を取り出すため図１
２に示すように振動板２４の打ち抜きをする。そして導
体部２３が対象軸となるようこの振動板２４を帯状に切
断し、図１３（ａ）に示すような試験片２５を用意す
る。Next, the conductive paste 22 is dried at a predetermined temperature and time. And using a molding die, 200 ℃,
In order to take out the test piece after performing the heat compression molding for 5 minutes.
As shown in FIG. 2, the diaphragm 24 is punched out. Then, the diaphragm 24 is cut into strips so that the conductor portion 23 serves as a target axis, and a test piece 25 as shown in FIG. 13A is prepared.
【００３６】また同じ織布の基材２１を用いて同じ成形
条件で平板に成形したものに、従来のスピーカに使用さ
れているボイスコイル線材と同じ径の（直径０．３ｍ
ｍ）の銅線を接着剤を用いて添付し、図１３（ｂ）に示
す試験片２６を用意する。In addition, a base material 21 of the same woven cloth was used to form a flat plate under the same forming conditions, and the same diameter as that of the voice coil wire used in the conventional speaker (diameter 0.3 m
The copper wire of m) is attached using an adhesive, and the test piece 26 shown in FIG. 13B is prepared.
【００３７】これら２種類の試験片２５、２６を対して
引っ張り試験を行ない、導体部の導電材料が断裂するこ
とにより導通が無くなるまでの引っ張り強度を計測す
る。この結果を表２に示す。A tensile test is carried out on these two types of test pieces 25 and 26, and the tensile strength until conduction is lost due to the breakage of the conductive material of the conductor portion is measured. The results are shown in Table 2.
【表２】 [Table 2]
【００３８】この表に示すように試験片２６、即ち銅線
＋織布の場合、織布の伸びに銅線がついていけないた
め、０．６ｋｇで断線が生じた。これに対して試験片２
５、即ち導電性ペースト＋織布の複合素材の場合、織布
の断裂まで導通を保ち続け、その限界は４．８ｋｇであ
った。このように振動板に大きな変位が伴う低周波駆動
の場合、導体部の破断が生じにくくなることが判る。As shown in this table, in the case of the test piece 26, that is, the copper wire + the woven cloth, the breakage occurred at 0.6 kg because the elongation of the woven cloth could not follow the copper wire. On the other hand, test piece 2
5, that is, in the case of the composite material of the conductive paste and the woven cloth, the continuity was maintained until the woven cloth was ruptured, and the limit was 4.8 kg. As described above, it is understood that the breakage of the conductor portion is less likely to occur in the case of low-frequency driving in which the diaphragm is largely displaced.
【００３９】[0039]
【発明の効果】以上のに本発明によれば、織布などの繊
維基材に導電性ペーストを塗布又は印刷して、熱成形プ
レスを行なうことにより、繊維−樹脂の複合化を行なう
ことができる。従って、剥離や反りが生ぜず、強度に優
れた配線を振動板上に施すことが可能となる。このため
分割共振も発生しにくく、耐入力に優れた広帯域特性を
持つ小型のスピーカが得られる。また導電性ペーストに
よる配線パターンを施したフレームと、端子を設けたボ
イスコイルボビンとを導電性接着剤により固着すること
で、ボイスコイルと外部端子が結合され、完全にハンダ
作業を排除し、工程の簡素化を図ることができる。As described above, according to the present invention, a fiber-resin composite can be obtained by applying or printing a conductive paste on a fiber base material such as a woven fabric and performing a thermoforming press. it can. Therefore, peeling or warpage does not occur, and it is possible to provide wiring having excellent strength on the diaphragm. For this reason, split resonance is unlikely to occur, and a small speaker having a wide band characteristic excellent in withstand input can be obtained. In addition, by fixing the frame on which the wiring pattern is made of conductive paste and the voice coil bobbin provided with terminals with a conductive adhesive, the voice coil and the external terminal are connected, and the soldering work is completely eliminated. It can be simplified.
【図１】本発明の実施形態におけるスピーカの振動板の
製造工程（その１）を示す説明図である。FIG. 1 is an explanatory diagram showing a manufacturing process (1) of a diaphragm of a speaker according to an embodiment of the present invention.
【図２】本実施形態におけるスピーカの振動板の製造工
程（その２）を示す説明図である。FIG. 2 is an explanatory diagram showing a manufacturing process (No. 2) of the diaphragm of the speaker in the present embodiment.
【図３】本実施形態におけるスピーカの振動板の製造工
程（その３）を示す説明図である。FIG. 3 is an explanatory diagram showing a manufacturing process (3) of the diaphragm of the speaker in the present embodiment.
【図４】本実施形態におけるスピーカの振動板の打ち抜
き工程を示す説明図である。FIG. 4 is an explanatory diagram showing a punching process of the diaphragm of the speaker according to the present embodiment.
【図５】本実施形態における振動板とボイスコイルボビ
ンとの接合工程を示す説明図である。FIG. 5 is an explanatory diagram showing a step of joining the diaphragm and the voice coil bobbin in the present embodiment.
【図６】本実施形態のスピーカにおける導体部付きの振
動板の成形外観図である。FIG. 6 is a molding appearance view of a diaphragm with a conductor portion in the speaker of the present embodiment.
【図７】本実施形態のスピーカのフレーム構造を示す上
面図である。FIG. 7 is a top view showing the frame structure of the speaker of the present embodiment.
【図８】本実施形態のスピーカのフレーム構造を示す下
面図である。FIG. 8 is a bottom view showing the frame structure of the speaker of the present embodiment.
【図９】本実施形態のスピーカのフレーム構造を示す断
面図である。FIG. 9 is a cross-sectional view showing the frame structure of the speaker of the present embodiment.
【図１０】本実施形態と従来例のスピーカの周波数特性
図である。FIG. 10 is a frequency characteristic diagram of a speaker of the present embodiment and a conventional example.
【図１１】本実施形態のスピーカに用いられる振動板の
試験片を製作する工程図（その１）である。FIG. 11 is a process diagram (1) of manufacturing a test piece of the diaphragm used in the speaker of the present embodiment.
【図１２】本実施形態のスピーカに用いられる振動板の
試験片を製作する工程図（その２）である。FIG. 12 is a process diagram (2) of manufacturing a test piece of the diaphragm used in the speaker of the present embodiment.
【図１３】本実施形態のスピーカに用いられる振動板の
試験片を製作する工程図（その３）である。FIG. 13 is a process diagram (3) of manufacturing the test piece of the diaphragm used in the speaker of the present embodiment.
１，２１ 基材（極細繊維織布） ２，１３，２２ 導電性ペースト ３，２３ 導体部 ４ 高剛性高分子樹脂 ５ 可撓性高分子樹脂 ６，２４ 振動板 ７ ボビン ８ 端子 ９ ボイスコイル １０ ボイスコイルボビン １１ フレーム １１ａ，１１ｂ 貫通孔 ９ 導電性ペースト １２ 外部端子板 ２５，２６ 試験片 1,21 Base material (ultrafine fiber woven cloth) 2,13,22 Conductive paste 3,23 Conductor 4 High rigidity polymer resin 5 Flexible polymer resin 6,24 diaphragm 7 bobbins 8 terminals 9 voice coils 10 voice coil bobbins 11 frames 11a, 11b through holes 9 Conductive paste 12 External terminal board 25,26 test piece
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｈ０４Ｒ 9/04 １０５ Ｈ０４Ｒ 9/04 １０５Ａ (56)参考文献 特開 平５−260594（ＪＰ，Ａ) 特開 平６−86358（ＪＰ，Ａ) 特開 昭60−177795（ＪＰ，Ａ) 実開 昭58−147398（ＪＰ，Ｕ) 実開 平７−25693（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H04R 31/00 D04H 1/54 H04R 7/02 H04R 9/02 101 H04R 9/04 103 H04R 9/04 105 Continuation of front page (51) Int.Cl. 7 identification code FI H04R 9/04 105 H04R 9/04 105A (56) References JP-A-5-260594 (JP, A) JP-A-6-86358 (JP, A) Japanese Patent Laid-Open No. 60-177795 (JP, A) Actually developed 58-147398 (JP, U) Actually developed 7-25693 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) ) H04R 31/00 D04H 1/54 H04R 7/02 H04R 9/02 101 H04R 9/04 103 H04R 9/04 105
Claims (13)
不織布から成る基材、該基材上に導電性ペーストを用い
て塗布又は印刷された一対の導体部及び、該導体部の少
なくとも一部を覆うよう前記基材に塗布した樹脂層を含
む振動板と、 前記夫々の導体部の一端を電気的に接続するように前記
振動板の外周部を弾性的に保持するスピーカフレーム
と、 ボイスコイルを回巻きし、前記ボイスコイルの一端と前
記導体部の他端に接続されたボイスコイルボビンと、を
具備し、前記ボイスコイルに対して前記振動板の導体部
を介して駆動電流を与えるようにしたことを特徴とする
スピーカ。1. A base material composed of a fiber woven or non-woven fabric having a fiber diameter of 10 to 100 μm, a pair of conductor portions coated or printed on the base material with a conductive paste, and at least a part of the conductor portion. A diaphragm including a resin layer applied to the base material so as to cover the base material, a speaker frame elastically holding an outer peripheral portion of the diaphragm so as to electrically connect one end of each conductor, and a voice coil And a voice coil bobbin connected to one end of the voice coil and the other end of the conductor portion so as to apply a drive current to the voice coil through the conductor portion of the diaphragm. A speaker characterized in that
又は不織布から成る基材に導電性ペーストを用いて一対
の導体部を塗布又は印刷し、 前記導体部の少なくとも一部を覆うよう樹脂を前記基材
に塗布し、 前記樹脂が塗布された基材を所定の立体形状を有する金
型で熱成形プレスし、 前記樹脂と前記基材の繊維とを複合化した部分を振動部
及びエッジとする振動板を一体成形し、 ボイスコイルを回巻きしたボイスコイルボビンを前記振
動板の内周部に取り付け、 外周に外部接続用の導体が形成されたスピーカフレーム
に対して、前記振動板の外周部を接合し、 前記ボイスコイルに対して前記振動板の導体部を介して
駆動電流を与えるようにしたことを特徴とするスピーカ
の製造方法。2. A pair of conductor portions are applied or printed using a conductive paste on a base material made of an ultrafine fiber woven fabric or nonwoven fabric having a fiber diameter of 10 to 100 μm, and a resin is coated so as to cover at least a part of the conductor portions. It is applied to the base material, the base material coated with the resin is thermoformed and pressed with a mold having a predetermined three-dimensional shape, and a portion in which the resin and the fibers of the base material are combined is a vibrating portion and an edge. A diaphragm is integrally molded, and a voice coil bobbin wound around a voice coil is attached to the inner peripheral part of the diaphragm, and the outer peripheral part of the diaphragm is attached to the speaker frame having a conductor for external connection formed on the outer periphery. And a drive current is applied to the voice coil through the conductor of the diaphragm.
周部のうち、少なくとも前記導体部の接続部分は、導電
性接着材を用いて接合されたことを特徴とする請求項１
記載のスピーカ。3. The outer peripheral portion of the diaphragm and the outer peripheral portion of the frame, at least a connecting portion of the conductor portion is joined by using a conductive adhesive.
The described speaker.
子との間に、導電性ペーストを用いて配線が施されたも
のであることを特徴とする請求項１記載のスピーカ。4. The speaker frame is characterized in that wiring is provided using a conductive paste between a connecting portion of the diaphragm on which the conductor portion is formed and an external terminal. The speaker according to claim 1.
又はそれらの合金を微粉末として樹脂に添加した材料で
あることを特徴とする請求項１記載のスピーカ。5. The speaker according to claim 1, wherein the conductive paste is a material in which silver, copper, aluminum or an alloy thereof is added as fine powder to a resin.
又はそれらの合金を微粉末として樹脂に添加した材料で
あることを特徴とする請求項２記載のスピーカの製造方
法。6. The method of manufacturing a speaker according to claim 2, wherein the conductive paste is a material in which silver, copper, aluminum or an alloy thereof is added as fine powder to a resin.
布又は不織布を基材とし、前記基材に導電性ペーストを
用いて複数の導体部を同時にスクリーン印刷し、 前記導体部の少なくとも一部を覆うよう樹脂を一定の間
隔で前記基材に複数箇所に塗布し、 前記樹脂が塗布された基材の各部分を所定の立体形状を
有する金型で熱成形プレスし、 前記樹脂と前記基材の繊維とを複合化した部分を振動部
及びエッジとする振動板を同時に複数組一体成形し、 ボイスコイルを回巻きした各ボイスコイルボビンを前記
各振動板の内周部に取り付け、 外周に外部接続用の導体が形成された各スピーカフレー
ムに対して、前記各振動板の外周部を接合することによ
り、複数のスピーカを製造することを特徴とするスピー
カの製造方法。7. A fiber woven or non-woven fabric having a fiber diameter of 10 to 100 μm is used as a base material, and a plurality of conductor parts are simultaneously screen-printed on the base material by using a conductive paste, and at least a part of the conductor parts is formed. Resin is applied to the base material at a plurality of positions at regular intervals so as to cover, and each part of the base material to which the resin is applied is thermoformed and pressed by a mold having a predetermined three-dimensional shape, and the resin and the base material. Simultaneously integrally mold multiple sets of vibrating plates with the part that is composited with the fiber as the vibrating part and the edge, and attach each voice coil bobbin wound with a voice coil to the inner peripheral part of each vibrating plate, and connect to the outer periphery A method for manufacturing a speaker, wherein a plurality of speakers are manufactured by bonding outer peripheral portions of the respective diaphragms to the respective speaker frames having conductors formed therein.
状の繊維織布又は不織布を基材とし、帯状に前記基材を
引き出し、 一定の間隔を保ちながら複数のノズルから導電性ペース
トを流出させ連続的に帯状の前記基材に塗布あるいは含
浸させて複数の導体部を形成し、 前記導体部の少なくとも一部を覆うよう樹脂を一定の間
隔で前記基材に複数箇所に塗布し、 前記樹脂が塗布された基材の各部分を所定の立体形状を
有する金型で熱成形プレスし、 前記樹脂と前記基材の繊維とを複合化した部分を振動部
及びエッジとする振動板を同時に複数組一体成形し、 ボイスコイルを回巻きした各ボイスコイルボビンを前記
各振動板の内周部に取り付け、 外周に外部接続用の導体が形成された各スピーカフレー
ムに対して、前記各振動板の外周部を接合することによ
り、複数のスピーカを一連の工程で製造するようにした
ことを特徴とするスピーカの製造方法。8. A roll-shaped fiber woven fabric or non-woven fabric having a fiber diameter of 10 to 100 μm is used as a base material, the base material is drawn out in a strip shape, and the conductive paste is continuously flowed out from a plurality of nozzles while maintaining a constant interval. To form or form a plurality of conductor portions by applying or impregnating the strip-shaped base material, and a resin is applied to the base material at a plurality of positions at regular intervals so as to cover at least a part of the conductor portion. Each part of the applied base material is thermoformed and pressed by a mold having a predetermined three-dimensional shape, and a plurality of vibration plates having a vibrating part and an edge at the composite part of the resin and the fiber of the base material are simultaneously set. Each voice coil bobbin wound integrally with a voice coil is attached to the inner peripheral part of each diaphragm, and the outer peripheral part of each diaphragm is attached to each speaker frame on the outer periphery of which a conductor for external connection is formed. Join The Rukoto method for producing a speaker, characterized in that so as to produce a plurality of speakers in a series of steps.
性の異なる高分子樹脂を塗布又は印刷することを特徴と
する請求項２、６、７、８のいずれか１項記載のスピー
カの製造方法。9. The step of applying a resin to the base material comprises applying or printing a polymer resin having different vibration characteristics to the vibrating portion and the edge portion of the base material, respectively. 9. A method of manufacturing a speaker according to any one of items 6, 6, 7 and 8.
印刷する工程は、 一対の導体部の絶縁のための間隔を隔てて振動部の全面
に前記導電性ペーストを塗布することを特徴とする請求
項２、６、７、８のいずれか１項記載のスピーカの製造
方法。10. The step of applying or printing a conductive paste on the base material is characterized in that the conductive paste is applied to the entire surface of the vibrating portion with an interval for insulating the pair of conductor portions. The method for manufacturing the speaker according to claim 2, 6, 7, or 8.
印刷する工程は、 スピーカの垂直軸に対して対象なパターンが配置される
よう導体部を形成することを特徴とする請求項２、６、
７、８のいずれか１項記載のスピーカの製造方法。11. The step of applying or printing a conductive paste on the base material forms a conductor portion such that a target pattern is arranged with respect to a vertical axis of the speaker. ,
9. The method for manufacturing the speaker according to any one of 7 and 8.
印刷する工程は、 スピーカの垂直軸に対して非対象なパターンが配置され
るよう導体部を形成することを特徴とする請求項２、
６、７、８のいずれか１項記載のスピーカの製造方法。12. The step of applying or printing a conductive paste on the base material forms a conductor portion such that an asymmetric pattern is arranged with respect to the vertical axis of the speaker.
9. The method for manufacturing a speaker according to any one of 6, 7, and 8.
長径方向と平行に複数組形成することを特徴とする請求
項１記載のスピーカ。13. The speaker according to claim 1, wherein when the vibrating portion has an elliptical shape, a plurality of the conductor portions are formed in parallel with the major axis direction of the vibrating portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4808296A JP3456819B2 (en) | 1996-02-09 | 1996-02-09 | Speaker and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4808296A JP3456819B2 (en) | 1996-02-09 | 1996-02-09 | Speaker and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09219900A JPH09219900A (en) | 1997-08-19 |
| JP3456819B2 true JP3456819B2 (en) | 2003-10-14 |
Family
ID=12793415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4808296A Expired - Lifetime JP3456819B2 (en) | 1996-02-09 | 1996-02-09 | Speaker and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3456819B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9743190B2 (en) | 2015-03-31 | 2017-08-22 | Bose Corporation | Acoustic diaphragm |
| US9769570B2 (en) | 2015-03-31 | 2017-09-19 | Bose Corporation | Acoustic diaphragm |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4864193B2 (en) * | 2000-07-19 | 2012-02-01 | オンキヨー株式会社 | Speaker member and manufacturing method thereof |
| JP4756393B2 (en) * | 2008-05-28 | 2011-08-24 | オンキヨー株式会社 | Speaker diaphragm and electrodynamic speaker using the same |
| KR101185377B1 (en) * | 2011-02-16 | 2012-09-26 | 주식회사 엑셀웨이 | Flat type speaker having damper-lead plate of pcb voice coil plate |
| TWI492641B (en) * | 2012-11-13 | 2015-07-11 | Cotron Corp | Vibrating element |
| TWI477159B (en) * | 2014-05-27 | 2015-03-11 | Cotron Corp | Vibrating element |
-
1996
- 1996-02-09 JP JP4808296A patent/JP3456819B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9743190B2 (en) | 2015-03-31 | 2017-08-22 | Bose Corporation | Acoustic diaphragm |
| US9769570B2 (en) | 2015-03-31 | 2017-09-19 | Bose Corporation | Acoustic diaphragm |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09219900A (en) | 1997-08-19 |
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