JPS6349991Y2 - - Google Patents
Info
- Publication number
- JPS6349991Y2 JPS6349991Y2 JP1983063039U JP6303983U JPS6349991Y2 JP S6349991 Y2 JPS6349991 Y2 JP S6349991Y2 JP 1983063039 U JP1983063039 U JP 1983063039U JP 6303983 U JP6303983 U JP 6303983U JP S6349991 Y2 JPS6349991 Y2 JP S6349991Y2
- Authority
- JP
- Japan
- Prior art keywords
- dome
- base material
- adhesive
- diaphragm
- hardening
- 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
Links
- 239000000463 material Substances 0.000 claims description 37
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
【考案の詳細な説明】
本考案はスピーカ、マイクロフオン等の電気信
号を空気振動に、又は空気振動を電気信号に変換
する電気音響変換器に使用されるドーム状の振動
板に関するものである。[Detailed Description of the Invention] The present invention relates to a dome-shaped diaphragm used in an electroacoustic transducer that converts electrical signals from speakers, microphones, etc. into air vibrations, or air vibrations into electrical signals.
従来のこの種の電気音響変換器に使用されるド
ーム部とエツジ部を有する振動板は、この振動板
の高音域での分割振動、低音域での異常振動を防
止するために、ドーム部とボイスコイル装着部を
硬くする必要があつた。 The diaphragm used in conventional electroacoustic transducers of this type has a dome part and an edge part. It was necessary to make the voice coil mounting part harder.
このドーム部及びドーム部に連なるエツジ部の
内周側を硬くするための方法としては
(1) ドーム部にエポキシ樹脂を塗布して、その硬
化性によりドーム部を硬化する方法
(2) ドーム部に金属を蒸着し、金属の硬さで硬化
する方法
(3) ドーム部にベース材と同形状、同材質で厚さ
の厚い別ピースのベース材を重ね、ドーム材の
強さで硬化する方法
の３通りがあつた。 Methods for hardening the inner circumferential side of this dome part and the edge part connected to the dome part are (1) a method of applying epoxy resin to the dome part and hardening the dome part using the hardenability of the epoxy resin; (2) a method of hardening the dome part A method in which metal is vapor-deposited on the dome and hardened by the hardness of the metal (3) A method in which another piece of base material of the same shape, same material, and thickness as the base material is layered on the dome part, and then hardened by the strength of the dome material. There were three options.
しかしながら前記の(1)の方法では接着剤の塗布
量の一定化がむづかしいため振動部重量が一定せ
ず、個々の製品の周波数特性にバラツキを生じ、
又塗布状態にもムラが生じ易いので歪を生ずる原
因となる。 However, in method (1) above, it is difficult to maintain a constant amount of adhesive applied, so the weight of the vibrating part is not constant, which causes variations in the frequency characteristics of individual products.
Also, unevenness tends to occur in the coating state, which causes distortion.
又(2)の方法は、エツジをマスキングすることが
難かしく、従つて量産には不適当であり、金属は
比重が大きいため所要硬度を得る厚さまで金属を
蒸着すると重量が多くなり、高音域の特性が劣化
する。 In addition, method (2) makes it difficult to mask the edges and is therefore unsuitable for mass production.Since metal has a high specific gravity, if the metal is vapor-deposited to a thickness that achieves the required hardness, the weight increases and the high-frequency range characteristics deteriorate.
更に(3)の方法ではドーム材として厚い材料が用
いられるので重量が大きくなり、高音域の特性が
劣化すると共に接着を一様に行うのが難かしく、
気泡が残り易く、歪を発生し易い。 Furthermore, in method (3), a thick material is used as the dome material, which increases the weight, deteriorates the high-frequency characteristics, and makes it difficult to bond uniformly.
Air bubbles tend to remain and distortion tends to occur.
等の欠点をそれぞれ持つていた。 Each had their own drawbacks.
本考案は硬化強度の一部を接着剤に持たせると
共に、接着層中に生じた気泡を生じ難く、しかも
気泡がある場合には之を発見し易くすることによ
り接着性の均一化されたもののみを使用し、以つ
て従来の欠点を除去し、重量の少い、安定した強
度のドーム部を有する振動板を提供することを目
的とするものである。 This invention allows the adhesive to have a part of the curing strength, makes it difficult for air bubbles to form in the adhesive layer, and makes it easier to find air bubbles if they are present, thereby achieving uniform adhesiveness. The object of the present invention is to provide a diaphragm having a dome portion that is light in weight and has stable strength, eliminating the drawbacks of the conventional method.
本考案の一実施例を図面に就いて説明すれば、
Ａはポリエステルフイルム等の透明又は半透明の
透光性を有する材質で形成されたベース材で、ド
ーム部１とエツジ部２が形成され、その上面には
微細な凹凸によりマツト面３が形成され、このマ
ツト面３は前記微細な凹凸で半透明になつてい
る。 An embodiment of the present invention will be described with reference to the drawings.
A is a base material made of a transparent or translucent material such as polyester film, on which a dome part 1 and an edge part 2 are formed, and a matte surface 3 is formed on the upper surface by fine irregularities. The matte surface 3 is semi-transparent due to the fine irregularities.
Ｂはベース材Ａと同材質であるが、その厚さは
ベース材Ａと同一若しくはそれよりも薄いもので
形成され極力重量を軽くしたドーム材で、ドーム
部４とそれに連なるエツジの内周側部５が形成さ
れて居り、その下面にはベース材Ａのマツト面３
と同様な半透明のマツト面６が形成されている。 B is a dome material made of the same material as base material A, but the thickness is the same as base material A or thinner than that, and the weight is as light as possible. A matte surface 3 of the base material A is formed on the lower surface of the portion 5.
A translucent matte surface 6 similar to the above is formed.
これ等を接着する接着剤としては、比重がドー
ム材Ｂよりも軽く、硬化後の硬度が高くかつ気泡
が生じにくい不揮発性のもの、例えばUV、エポ
キシ系等が使用されるもので、この接着剤をベー
ス材Ａのドーム部１の頂点に一定量をポイント塗
布する。 The adhesive used to bond these items is a non-volatile material that has a specific gravity lighter than that of dome material B, has high hardness after curing, and does not easily form bubbles, such as UV or epoxy. A certain amount of the agent is applied to the top of the dome portion 1 of the base material A as a point.
次にドーム材Ｂをその上に重ねて圧力を加え、
この圧力によつて接着剤をベース材Ａ、ドーム材
Ｂ間に展延し、ベース材Ａとドーム材Ｂを全面で
接着する。 Next, put dome material B on top of it and apply pressure.
The adhesive is spread between the base material A and the dome material B by this pressure, and the base material A and the dome material B are bonded over the entire surface.
そしてこの接着に際して均一に、気泡を発生す
ることなく接着されたかどうかを視覚で確認する
のであるが、ベース材Ａの上面、ドーム材Ｂの下
面にはマツト面３，６が形成されて居り、気泡の
発生している部分を除いてマツト面３，６の小凹
凸内に接着剤が入り込み、半透明のマツト面３，
６を透明化するので、ベース材Ａ、ドーム材Ｂの
外面からでも不透明部分の残存により気泡の確認
ができる。 During this adhesion, it is visually confirmed whether the adhesion has been done uniformly and without generating bubbles, but matte surfaces 3 and 6 are formed on the upper surface of the base material A and the lower surface of the dome material B. The adhesive enters into the small irregularities of the mat surfaces 3 and 6 except for the areas where air bubbles are generated, and the translucent mat surfaces 3 and 6 become translucent.
Since 6 is made transparent, bubbles can be confirmed even from the outer surfaces of base material A and dome material B due to the remaining opaque parts.
又ベース材Ａ、ドーム材Ｂ間に形成される接着
剤層の厚さは、接着剤の塗布量と加圧力で決定で
き、強度と周波数特性の両者を満足させるように
決定するものである。 The thickness of the adhesive layer formed between the base material A and the dome material B can be determined by the amount of adhesive applied and the pressing force, and is determined so as to satisfy both strength and frequency characteristics.
上記実施例は振動板のドーム部の硬化について
説明したが、その他振動板の特定部分のみを硬く
する方法として有効なもので、広く応用が可能で
ある。 Although the above embodiment describes hardening of the dome portion of the diaphragm, this method is also effective as a method of hardening only a specific portion of the diaphragm, and can be widely applied.
叙上のように本考案はベース材に、これと同一
若しくはそれよりも薄いドーム材を貼着し、その
ドーム部２の硬化の大部分を接着剤の硬度で保持
させたので、振動板全体を軽量化でき、高音域の
特性の向上に寄与するばかりでなく、ドーム材と
ベース材を加圧して接着剤を展延するので気泡が
でき難く、しかもこれ等の接着面をマツト面とし
てその透明化されない部分によつて気泡を容易に
発見できるようにしたから、気泡が残存や塗布ム
ラに起因する歪のある振動板が除去でき、極めて
高音質の電気音響変換器用の振動板を大量、且つ
廉価に供給することが可能なものである。 As mentioned above, in the present invention, a dome material that is the same as or thinner than this is attached to the base material, and most of the hardening of the dome part 2 is retained by the hardness of the adhesive, so that the entire diaphragm Not only can it be made lighter and contribute to improving the high-frequency characteristics, but since the adhesive is spread by applying pressure to the dome material and base material, air bubbles are less likely to form. Since air bubbles can be easily found in the non-transparent parts, it is possible to remove distorted diaphragms caused by residual air bubbles and uneven coating. Moreover, it can be supplied at low cost.
図面は本考案の一実施例を示す模型図である。
Ａ……ベース材、Ｂ……ドーム材、１，４……
ドーム部、２……エツジ部、３，６……マツト
面、５……エツジ内周側部。
The drawing is a model diagram showing an embodiment of the present invention. A... Base material, B... Dome material, 1, 4...
Dome part, 2... Edge part, 3, 6... Mat surface, 5... Edge inner peripheral side part.
Claims (1)
ス材のドーム部と同形状のドーム部を有するドー
ム材とを透明若しくは半透明の透光材で形成する
と共に、これ等を重合貼着するそれぞれの貼着面
に微細凹凸のマツト面を形成し、重合貼着面全域
に接着剤を充填接着したことを特徴とする電気音
響変換器用振動板。 A base material having a dome portion and an edge portion, and a dome material having a dome portion having the same shape as the dome portion of the base material are formed of a transparent or translucent material, and these are polymerized and bonded to each other. A diaphragm for an electroacoustic transducer, characterized in that a matte surface with minute irregularities is formed on the adhesive surface, and the entire polymerized adhesive surface is filled and bonded with an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6303983U JPS59169189U (en) | 1983-04-28 | 1983-04-28 | Diaphragm for electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6303983U JPS59169189U (en) | 1983-04-28 | 1983-04-28 | Diaphragm for electroacoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59169189U JPS59169189U (en) | 1984-11-12 |
| JPS6349991Y2 true JPS6349991Y2 (en) | 1988-12-22 |
Family
ID=30193228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6303983U Granted JPS59169189U (en) | 1983-04-28 | 1983-04-28 | Diaphragm for electroacoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59169189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011109664A (en) * | 2009-11-17 | 2011-06-02 | Qinghua Univ | Diaphragm and loudspeaker using the same |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8135165B2 (en) * | 2005-02-02 | 2012-03-13 | Sanyo Electric Co., Ltd. | Diaphragm and loudspeaker unit using the same |
| JP4683555B2 (en) * | 2006-03-01 | 2011-05-18 | パイオニア株式会社 | Dome-shaped diaphragm and speaker device |
| US8682021B2 (en) | 2009-02-09 | 2014-03-25 | Sanyo Electric Co., Ltd. | Speaker unit and portable information terminal |
| JP2020120300A (en) * | 2019-01-24 | 2020-08-06 | 株式会社エムケイテック | Vibration plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022880A (en) * | 1983-07-19 | 1985-02-05 | Mitsubishi Electric Corp | Image pickup device |
-
1983
- 1983-04-28 JP JP6303983U patent/JPS59169189U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022880A (en) * | 1983-07-19 | 1985-02-05 | Mitsubishi Electric Corp | Image pickup device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011109664A (en) * | 2009-11-17 | 2011-06-02 | Qinghua Univ | Diaphragm and loudspeaker using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59169189U (en) | 1984-11-12 |
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