JPH10257588A - Color diaphragm and production thereof - Google Patents

Color diaphragm and production thereof

Info

Publication number
JPH10257588A
JPH10257588A JP7265397A JP7265397A JPH10257588A JP H10257588 A JPH10257588 A JP H10257588A JP 7265397 A JP7265397 A JP 7265397A JP 7265397 A JP7265397 A JP 7265397A JP H10257588 A JPH10257588 A JP H10257588A
Authority
JP
Japan
Prior art keywords
diaphragm
color
rcs
rainbow
base
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.)
Pending
Application number
JP7265397A
Other languages
Japanese (ja)
Inventor
Yoshio Sakamoto
良雄 坂本
Takeshi Imai
健 今井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kenwood KK
Original Assignee
Kenwood KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kenwood KK filed Critical Kenwood KK
Priority to JP7265397A priority Critical patent/JPH10257588A/en
Publication of JPH10257588A publication Critical patent/JPH10257588A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PROBLEM TO BE SOLVED: To inexpensively produce a diaphragm with which colors are changed and shone like a rainbow by sticking a sheet onto a porous base while distributing glass beads to change colors and to shine them like rainbow because of prism effect. SOLUTION: A base 3 paper-manufacturing pulp is heat-molded for providing smoothness. In this case, a rainbow color sheet(RCS) 2 is arranged on the base 3. An adhesive agent for adhesion with the base 3 is applied to the RCS 2. In the case of mass-production, demolding paper 2b is further stuck and taken up just before working. In punching 4, a hole 4a having a diameter of about 1mm is opened at a prescribed position, and a cone can be sucked by a pump 5. Besides, a press metal die 1 is kept at a prescribed temperature. Then, first of all, the RCS 2 is heated by the press metal die 1, softened, sucked by the punching 4 and stuck on the diaphragm with no imbalance. At the same time, it is molded by the press metal die 1.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明はスピーカ用振動板
に係わり、特に、外観に優れたスピーカ用振動板および
その製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker diaphragm, and more particularly to a speaker diaphragm excellent in appearance and a method of manufacturing the same.

【0002】[0002]

【従来の技術】近年、カースピーカは嗜好性の強いもの
が増え、ファッシヨン性が重要視されるようになってき
た。こうした中、スピーカ振動板に色の付いたいわゆる
カラー振動板が使われるケースが増えてきた。
2. Description of the Related Art In recent years, car speakers with a strong preference have increased, and fashionability has been regarded as important. Under such circumstances, there have been increasing cases where a so-called color diaphragm having a color is used for a speaker diaphragm.

【0003】ところで、現状の振動板、特にコーン形状
を有した振動板には、主にパルプ製、ポリプロピレン
(以下PPと記す)製、FRP(繊維強化樹脂)製等が
ある。以下にこの3種類の振動板の特徴、着色法につい
て述べる。
[0003] Current diaphragms, particularly diaphragms having a cone shape, are mainly made of pulp, polypropylene (hereinafter abbreviated as PP), FRP (fiber reinforced resin) and the like. The characteristics and coloring method of these three types of diaphragms will be described below.

【0004】パルプ製振動板はコーン状に抄紙した振動
板で以前から最も一般的な振動板であり、複数のパルプ
材を混合することにより音質を変化させることが出来る
上、コストも安価という長所を持っているが、材料であ
るパルプに着色する場合、基本的には単色でありその色
もくすんだ色になることが多く、耐光性も考慮し黒色が
一般的に多用されている。
The diaphragm made of pulp is a diaphragm made in a cone shape and has been the most common diaphragm for some time. The sound quality can be changed by mixing a plurality of pulp materials, and the cost is low. However, when coloring pulp as a material, it is basically a single color and often has a dull color, and black is generally widely used in consideration of light resistance.

【0005】また、表面の平滑性が得にくいため着色し
ても外観の仕上がりが悪いという問題点を有している事
は周知の所である。この問題を解決するため、塗料等を
コーテイングし、仕上がり面を光沢調にしようとした場
合、コートを厚くしなければならないためコストも上が
り、振動板に重量がつくため音圧特性も下がってしまう
という欠点を有している。
Further, it is well known that there is a problem that the surface finish is poor even when colored because the surface is not smooth enough. In order to solve this problem, when coating the paint etc. and trying to make the finished surface glossy, the cost must be increased because the coat must be thickened, and the sound pressure characteristics will be reduced due to the weight of the diaphragm. There is a disadvantage that.

【0006】PP製振動板は、真空成型品と射出成型品
等があり、現在は良好な表面平滑性と生産性を備えた射
出成型品が大勢を占めている。このような射出成型品
は、それ自体に色を付けたり、マイカなどを混合しメタ
リック調を容易に得ることができたりして、現在カラー
振動板としては最も一般的だが、こちらも基本的に単色
であった。また、基本的に単一素材であるため、音質が
限定されてしまう上、パルプ製等に比べ耐熱温度が低い
ため、耐パワー性が劣るという欠点があった。
[0006] PP diaphragms include vacuum-molded products and injection-molded products. Currently, injection-molded products having good surface smoothness and productivity are predominant. This type of injection molded product is the most common as a color diaphragm at present, because it can add color to itself, mix mica, etc., and easily obtain a metallic tone. It was a single color. In addition, since it is basically a single material, the sound quality is limited, and the heat resistance is lower than that of pulp or the like, so that the power resistance is poor.

【0007】カーボン繊維等を用いたFRP製振動板は
極めて高性能な素材であることは周知の通りであるが、
それ自体が安価でない上、バインダーに着色はできるが
繊維への着色が難しく美しい外観を得ることが困難なた
め、フアッシヨン性を重視するカラー振動板には不向き
であり、あまり使用されていない。
It is well known that an FRP diaphragm using carbon fiber or the like is an extremely high-performance material.
It is not inexpensive itself, and it is possible to color the binder, but it is difficult to color the fiber, and it is difficult to obtain a beautiful appearance. Therefore, it is not suitable for a color diaphragm that attaches importance to the fashionability, and is not often used.

【0008】以上のように、現在の一般的な振動板はど
の素材を使用しても、着色しようとした際加工費がかか
る、特性が下がるなどの問題があり、色が変化したり虹
色に輝くというような振動板を従来の一般的な着色方法
等で得ることは困難であった。ファッション性を追求す
る中で、更なる差別化の手段として、色が変化したり、
虹色に輝くような振動板も使用者の要望を満たすものと
予想される。
As described above, no matter which material is used for the current general diaphragm, there is a problem that processing cost is required when coloring is attempted, and characteristics are lowered. It was difficult to obtain such a vibrating plate by a conventional general coloring method. In pursuit of fashion, as a means of further differentiation, color changes,
It is expected that a diaphragm that shines in rainbow color will also satisfy the user's demand.

【0009】[0009]

【発明が解決しようとする課題】この発明は上記した点
に鑑みてなされたものであって、その目的とするところ
は、色が変化し虹色に光るような振動板を既存の技術で
安価に製造することができるカラー振動板の構造とその
製造方法を提供することである。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a diaphragm that changes its color and shines in rainbow colors using existing technology at a low cost. It is an object of the present invention to provide a structure of a color diaphragm which can be manufactured at a high speed and a method of manufacturing the same.

【0010】[0010]

【課題を解決するための手段】色が変化し虹色に輝くよ
うな振動板を得るため、本発明者はガラスビーズのプリ
ズム効果に着目、このガラスビーズを振動板表面に均一
分散せしめる方法を検討した。まず、材料やバインダー
等にガラスビーズを混合する方法があるが、PPにガラ
スビーズを混合すると、少量の場合はプリズム効果を起
こすほどの均一分散が難しく、多量にすると射出成形が
難しくなる等の欠点があり、所望の効果を得ることは困
難である事が判明した。また、パルプに混合すると比重
の差等によりガラスビーズは表面に均一に出てこないた
め、所望のプリズム効果を得る事は難しい。また、FR
P等の細いバインダーに混合しようとしても、プリズム
効果を発揮するほどの量を分散させることは大変困難で
ある事が判明した。
In order to obtain a vibrating plate that changes color and shines iridescently, the present inventor pays attention to the prism effect of glass beads, and describes a method for dispersing the glass beads uniformly on the surface of the vibrating plate. investigated. First, there is a method of mixing glass beads with a material, a binder, and the like. However, if glass beads are mixed with PP, it is difficult to uniformly disperse such that a prism effect occurs in a small amount, and injection molding becomes difficult in a large amount. It has been found that there are drawbacks and it is difficult to obtain the desired effect. Further, when mixed with pulp, glass beads do not uniformly appear on the surface due to a difference in specific gravity or the like, and it is difficult to obtain a desired prism effect. Also, FR
It has been found that it is very difficult to disperse an amount sufficient to exert the prism effect even when mixing with a fine binder such as P.

【0011】また、ガラスビーズを塗料等に混合し、こ
の混合液を吹き付け等の手段にて塗付する方法がある
が、一度に多くの混合液を塗れば、塗料とともにガラス
ビーズはネック近傍に溜まってしまい、ブリズム効果は
ネック周辺のみに表れる。しかも、ネック近傍はダスト
キャップ等に隠される為、実際にはプリズム効果は目視
できなくなる。塗布量を少量にして重ね塗りする方法で
あれば可能だが、工程が極端に増え時間と手間がかかる
ため加工費が高くなるという欠点を持つ。
There is also a method of mixing glass beads with a paint or the like and applying the mixed liquid by spraying or the like. However, if a large amount of the mixed liquid is applied at a time, the glass beads together with the paint are placed near the neck. It accumulates and the breath effect appears only around the neck. In addition, since the vicinity of the neck is hidden by a dust cap or the like, the prism effect cannot actually be seen. Although it is possible to use a method in which the amount of coating is reduced and the layer is applied repeatedly, there is a drawback that the processing cost is high because the number of steps is extremely increased and time and labor are required.

【0012】以上のように、コーン形状を有する振動板
表面にガラスビーズを均一に分散させることは、混合し
ても付着させても、振動板が曲面であるゆえ、非常に困
難であった。
As described above, it is very difficult to uniformly disperse the glass beads on the surface of the cone-shaped diaphragm because the diaphragm has a curved surface even when mixed and adhered.

【0013】ここで本発明者は、曲面に均一分散させる
ことは困難であるが、平面であれば可能ではないかと考
え検討し、ガラスビーズを平面状の塩化ビニルシート上
に均一分散させ、色が変化し虹色に光るような「レイン
ボーカラーシート」(住友スリーエム社製、以下RCS
と記す)に着目した。
[0013] Here, the present inventor considers that it is difficult to uniformly disperse the glass beads on a curved surface, but considers that it is possible if the surface is flat. "Rainbow Color Sheet" that changes and glows in rainbow colors (Sumitomo 3M, hereinafter RCS
Note).

【0014】このカラーシートはガラスビーズのプリズ
ム効果により、入射角に対し42度の方向に虹色を表現
できる。また、下地に多種多様な色を付けることができ
る上、その色もプリズム効果により見る角度によって変
化し、色のバリエーシヨンを楽しむことができる。
This color sheet can express a rainbow color in a direction of 42 degrees with respect to the incident angle by the prism effect of the glass beads. In addition, various colors can be added to the base, and the colors also change depending on the viewing angle due to the prism effect, so that a variety of colors can be enjoyed.

【0015】現在、外観の向上と表面の保護のためにパ
ルプ製振動板に透明樹脂シートをラミネートする技術が
ある。パルプ製振動板は多孔性のためパンチング側から
RCSを吸引できるし耐熱性もあるので加工に問題がな
い。そこでこれを応用してRCSをラミネートする事に
した。
At present, there is a technique for laminating a transparent resin sheet on a pulp diaphragm in order to improve the appearance and protect the surface. Since the pulp diaphragm is porous, it can suck RCS from the punching side and has heat resistance, so there is no problem in processing. Therefore, this was applied to laminate the RCS.

【0016】このようにして完成した本発明のカラー振
動板はプリズム効果により色が変化し虹色に光るような
ガラスビーズを分散させたシートを多孔性の基材に貼り
付けたものである。
The color diaphragm of the present invention completed in this way is obtained by sticking a sheet in which glass beads, which change color by a prism effect and emit rainbow colors, are dispersed on a porous substrate.

【0017】また、本発明のカラー振動板の製造方法
は、前記シートの裏面に粘着剤を付設し多孔性の基材の
上に重ね吸引穴を有する金型により空気を吸引しながら
成形することを特徴とする。
Further, in the method for manufacturing a color diaphragm according to the present invention, the sheet is provided with an adhesive on the back surface, and is formed on a porous base material while sucking air by a mold having a suction hole. It is characterized by.

【0018】さらに、本発明のカラー振動板の製造方法
は、前記シートの裏面に粘着剤を付設しパルプ製の基材
の上に重ね吸引穴を有する金型により空気を吸引しなが
ら成形することを特徴とする。
Further, in the method of manufacturing a color diaphragm according to the present invention, an adhesive is attached to the back surface of the sheet, and the sheet is formed on a pulp base material while sucking air by a mold having a suction hole. It is characterized by.

【0019】[0019]

【発明の実施の形態】この発明の適用されたカラー振動
板およびその製造方法の例を図面に基づいて説明する。
図1は本発明の実施例を説明するための断面図である。
図における3は従来のパルプ製振動板と同様にパルプを
抄紙した基材であり、平滑性を出すため熱成形する。こ
の際、基材3の上にRCS2を配置する。RCSには、
図2に示すように基材3との粘着用に粘着剤2aを付け
ておく。量産に際しては更に離型紙2bを付けておき、
加工直前で巻き取る。パンチング4にはφ1mm程度の
穴4aを所定の位置にあけポンプ5によりコーンを吸引
出来るようにする。また、プレス金型1は所定の温度に
保つ。そして、まずRCSはプレス金型1に加熱され軟
化し、パンチング4により吸引されて振動板に偏りなく
張り付く。と同時にプレス金型1により成形される。出
来上がった振動板を必要な大きさにトリミングングし、
エッジ等を接着した後スピーカに取り付ける。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a color diaphragm to which the present invention is applied and a method of manufacturing the same will be described with reference to the drawings.
FIG. 1 is a sectional view for explaining an embodiment of the present invention.
Reference numeral 3 in the drawing denotes a substrate made of pulp in the same manner as a conventional pulp diaphragm, which is thermoformed in order to obtain smoothness. At this time, the RCS 2 is arranged on the base material 3. In RCS,
As shown in FIG. 2, an adhesive 2 a is provided for adhesion to the substrate 3. In mass production, release paper 2b is further attached,
Take up just before processing. A hole 4a having a diameter of about 1 mm is formed in the punching 4 at a predetermined position so that the pump 5 can suck the cone. The press die 1 is kept at a predetermined temperature. First, the RCS is heated by the press die 1 and softened, and is sucked by the punching 4 and stuck to the diaphragm without bias. At the same time, it is formed by the press die 1. Trim the finished diaphragm to the required size,
After attaching the edges, attach it to the speaker.

【0020】実施例では、パルプ製基材を使用したが、
多孔性の基材であれば同様の加工法でRCSをラミネー
トすることが出来る。また、穴あけ等の加工をすること
により、多孔性でないPPやFRPにも同様の加工法で
ガラスビーズの取付が可能となり、ほかの素材でも色が
変化し虹色に輝くような振動板を得ることができる。
In the examples, a pulp base material was used.
RCS can be laminated by the same processing method as long as it is a porous substrate. In addition, by processing such as drilling, glass beads can be attached to non-porous PP and FRP by the same processing method, and a diaphragm that changes color and shines rainbow in other materials is obtained. be able to.

【0021】さらに実施例では塩化ビニルの裏に接着剤
を塗ったものを使用しているが、ナイロン等融点の低い
材料を使用すれば振動板平面に融着するので接着剤を塗
る必要もなく更にコストを落とすことができる。
Further, in the embodiment, the adhesive coated on the back of vinyl chloride is used. However, if a material having a low melting point such as nylon is used, it is fused to the plane of the diaphragm, so that it is not necessary to apply the adhesive. Further, costs can be reduced.

【0022】[0022]

【発明の効果】この発明によれば、従来の熱成形技術で
容易に加工することが出来るため、新たな手間や設備投
資が必要なく、また加工法が同じであるため作業のスピ
ードも上がり、結果として安価に加工ができる。この結
果、既存の加工法で容易にガラスビーズのプリズム効果
により色が変化し虹色に輝くカラー振動板を得ることが
できる。
According to the present invention, processing can be easily performed by the conventional thermoforming technology, so that new labor and equipment investment are not required, and work speed is increased because the processing method is the same. As a result, processing can be performed at low cost. As a result, a color vibrating plate that changes color by the prism effect of the glass beads and shines rainbow can be easily obtained by the existing processing method.

【0023】そして当然、表面は平滑性も上がる。その
平滑性は、シートによって自在に変化させることがで
き、多種多様な質感を得ることができる。前記の通り、
色にもバリエーシヨンがあるので、多種多様な色、質感
を持った虹色に輝く振動板を得ることができる。
As a matter of course, the surface also increases in smoothness. The smoothness can be freely changed depending on the sheet, and a wide variety of textures can be obtained. As mentioned above,
Since there are variations in colors, a rainbow-colored diaphragm having various colors and textures can be obtained.

【0024】また、単一材でないので共振を抑えること
が出来る。シート自体軽量なので加工を施すことによっ
て特性が下がると言うこともない。紫外線による劣化防
止にもなり耐光性も向上する。スピーカの一般的に設置
される場所の中でも高温が予想される車室内等の高温を
想定した耐熱試験の結果、十分使用に耐えうることも判
明した。
Further, since it is not a single material, resonance can be suppressed. Since the sheet itself is lightweight, there is no need to say that the properties are lowered by processing. It also prevents deterioration due to ultraviolet light and improves light resistance. As a result of a heat test assuming a high temperature in a cabin or the like where a high temperature is expected even in a place where a speaker is generally installed, it has been found that the speaker can be sufficiently used.

【0025】さらに、曲面である振動板にRCSをラミ
ネートすることによって、ある決まった角度にしか光を
反射しないRCSに、反射角の拡がりをもたせることが
でき、平面のままのRCSよりも、色の変化を楽しむこ
とができるようになった。
Further, by laminating the RCS on the diaphragm having a curved surface, the RCS that reflects light only at a certain fixed angle can have a wider reflection angle. Now you can enjoy the change.

【0026】振動板の表面の素材や形状によって音質が
変化することは周知の通りであるが。表面にガラスビー
ズが均一に分散しているため、文字通り粒のそろった、
きめの細かい音を再生することができる。
It is well known that the sound quality changes depending on the material and shape of the surface of the diaphragm. Because the glass beads are evenly dispersed on the surface, the grain is literally uniform,
A fine-grained sound can be reproduced.

【0027】さらに、本発明の製造法によれば、虹色に
変色するばかりでなく、多種多様な色、柄、デザインの
振動板を安価に得ることが出来る。
Further, according to the manufacturing method of the present invention, not only the discoloration to iridescent color, but also diaphragms of various colors, patterns and designs can be obtained at low cost.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例を説明するための断面図であ
る。
FIG. 1 is a cross-sectional view for explaining an embodiment of the present invention.

【図2】同実施例に用いた部材を示す断面図である。FIG. 2 is a sectional view showing a member used in the example.

【符号の説明】[Explanation of symbols]

1 プレス金型 2 レインボーカラーシート 2a 粘着剤 2b 離型紙 3 基材 4 パンチング 4a、吸引穴 Reference Signs List 1 press die 2 rainbow color sheet 2a adhesive 2b release paper 3 base material 4 punching 4a, suction hole

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI B32B 27/30 101 B32B 27/30 101 H04R 7/12 H04R 7/12 K // B29K 27:06 B29L 9:00 31:38 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI B32B 27/30 101 B32B 27/30 101 H04R 7/12 H04R 7/12 K // B29K 27:06 B29L 9:00 31:38

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 プリズム効果により色が変化し虹色に光
るようなガラスビーズを分散させたシートを多孔性の基
材に貼り付けたことを特徴とするカラー振動板。
1. A color vibrating plate wherein a sheet in which glass beads that change color by the prism effect and shine in rainbow colors are attached to a porous substrate.
【請求項2】 請求項1に記載したシートの裏面に粘着
剤を付設し多孔性の基材の上に重ね、吸引穴を有する金
型により空気を吸引しながら成形することを特徴とする
カラー振動板の製造方法。
2. A collar characterized in that a pressure-sensitive adhesive is attached to the back surface of the sheet according to claim 1, which is overlaid on a porous substrate, and which is formed while sucking air by a mold having suction holes. Manufacturing method of diaphragm.
【請求項3】 請求項1に記載したシートの裏面に粘着
剤を付設しパルプ製の基材の上に重ね、吸引穴を有する
金型により空気を吸引しながら成形することを特徴とす
るカラー振動板の製造方法。
3. A collar characterized in that an adhesive is attached to the back surface of the sheet according to claim 1, which is overlaid on a pulp base material, and is formed while sucking air by a mold having suction holes. Manufacturing method of diaphragm.
JP7265397A 1997-03-10 1997-03-10 Color diaphragm and production thereof Pending JPH10257588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7265397A JPH10257588A (en) 1997-03-10 1997-03-10 Color diaphragm and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7265397A JPH10257588A (en) 1997-03-10 1997-03-10 Color diaphragm and production thereof

Publications (1)

Publication Number Publication Date
JPH10257588A true JPH10257588A (en) 1998-09-25

Family

ID=13495566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7265397A Pending JPH10257588A (en) 1997-03-10 1997-03-10 Color diaphragm and production thereof

Country Status (1)

Country Link
JP (1) JPH10257588A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007028525A (en) * 2005-07-21 2007-02-01 Sony Corp Acoustic diaphragm and acoustic diaphragm manufacturing method
JP2013123208A (en) * 2011-11-07 2013-06-20 Goki Ukita Speaker device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007028525A (en) * 2005-07-21 2007-02-01 Sony Corp Acoustic diaphragm and acoustic diaphragm manufacturing method
JP2013123208A (en) * 2011-11-07 2013-06-20 Goki Ukita Speaker device
JP2013132086A (en) * 2011-11-07 2013-07-04 Goki Ukita Speaker device

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