JPS60227596A - Manufacture of diaphragm for speaker - Google Patents
Manufacture of diaphragm for speakerInfo
- Publication number
- JPS60227596A JPS60227596A JP8434284A JP8434284A JPS60227596A JP S60227596 A JPS60227596 A JP S60227596A JP 8434284 A JP8434284 A JP 8434284A JP 8434284 A JP8434284 A JP 8434284A JP S60227596 A JPS60227596 A JP S60227596A
- Authority
- JP
- Japan
- Prior art keywords
- core
- paper
- resin
- thermosetting resin
- thermosetting
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、各種の音響機器に使用されるスピーカ用平板
振動板の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing a flat diaphragm for speakers used in various types of audio equipment.
従来例の構成とその問題点
従来スピーカ用平板振動板の芯材の材料は一般にアルミ
ニウムが中心であり、その他には、集成マイカ、高分子
樹脂などが使用されていた。Conventional Structures and Problems The core material of conventional loudspeaker flat diaphragms is generally made of aluminum, and other materials such as laminated mica and polymer resins have also been used.
しかしこれらは次の問題点がある。However, these methods have the following problems.
■ アルミニウムの場合は２．７＃／ｉで集成マイカ（
エポキシ）の場合１．９ｇ／ｄｌ であシ、密度が大き
い。■ In the case of aluminum, use 2.7#/i laminated mica (
In the case of epoxy, it has a high density of 1.9 g/dl.
■ 材料費が高い。■ Material costs are high.
■ 自由にコア形状が変えられない。■ The core shape cannot be changed freely.
以上の３つの問題点があるため、周波数特性では、音圧
レベル（ｄＢ）が低く、設計の自由度がなく、コストア
ップとなるため、普及型平板振動板としてのコア材の使
用が困難であった。Due to the above three problems, it is difficult to use the core material as a popular flat plate diaphragm because the sound pressure level (dB) is low in terms of frequency characteristics, there is no freedom in design, and the cost increases. there were.
発明の目的
本発明は、以上のような従来の問題点を解決するもので
あり、密度が小さく、機械的強度が大きく、シかも耐熱
性、耐湿性にすぐれ、コア形状を任意の形に固定でき、
材料費の安価なスピーカ用平板振動板の製造方法を提供
することを目的とするものである。Purpose of the Invention The present invention solves the above-mentioned problems of the conventional technology. I can,
It is an object of the present invention to provide a method of manufacturing a flat diaphragm for a speaker with low material cost.
発明の構成
上記目的を達成するために、本発明はペーパ−ハニカム
コアを任意の形状で成形した状態で熱硬化性樹脂に含浸
し、その後その樹脂を熱硬化させるものである。Structure of the Invention In order to achieve the above object, the present invention involves impregnating a paper honeycomb core formed into an arbitrary shape with a thermosetting resin, and then thermosetting the resin.
密度が小さく、低コストのべ一ノくを使用するとともに
、このペーパで、ノ・ニカム構造を形成し、熱硬化性樹
脂を用いて製造することにより、軽量で、機械的強度が
太きく耐湿性、耐熱性にすぐれたスピーカ用平板振動板
を得ることができる。In addition to using low-density, low-cost paper, this paper forms a paper structure and is manufactured using thermosetting resin, making it lightweight, mechanically strong, and moisture resistant. A flat diaphragm for speakers with excellent properties and heat resistance can be obtained.
実施例の説明
以下、本発明のスピーカ用平板振動板の製造方法の一実
施例を図面第１図〜第６図により説明する。まず第１図
への工程図に示すクラフト紙等からなるペーパ１を１枚
づつ、第１図Ｂに示す貼り合せ箇所に接着剤２を塗布す
る。そして次に第１図Ｃに示すようにそれらを積層、加
圧接着し積層体３を得る。次に第１図りに示すように積
層体３をコアの高さに切断しベーノ々−ノ・ニカムコア
４を得る。次に第１図Ｅに示すようにベー、＋−ノニカ
ムコア４を任意の形状に展張して、第１図Ｆに示すよう
に熱硬化性樹脂６に展張したペーパーハニカムコア４を
浸清し含浸して、その後強制乾燥して、形状を固定する
。次に第１図Ｇに示すように形状を固定したペーパーハ
ニカムコア４０両面に、ホットメルト型接着フィルム６
を介して表面スキン７を設は加熱接着し、第１図Ｈに示
すようにスピーカ用平板振動板８を得ることになる。次
にペーパーハニカムコアの形状決定と形状固定の方法を
詳しく説明す、乙
平板振動板にした場合必ず共振した時に節ができ、例え
ば円形平板振動板だと節が円としてでる。DESCRIPTION OF EMBODIMENTS An embodiment of the method for manufacturing a flat diaphragm for speakers according to the present invention will be described below with reference to FIGS. 1 to 6. First, adhesive 2 is applied to the bonding locations shown in FIG. 1B one by one using paper 1 made of kraft paper or the like shown in the process diagram in FIG. 1. Then, as shown in FIG. 1C, they are laminated and bonded under pressure to obtain a laminate 3. Next, as shown in the first diagram, the laminated body 3 is cut to the height of the core to obtain a beno-nicum core 4. Next, as shown in FIG. 1E, the paper honeycomb core 4 is expanded into an arbitrary shape, and as shown in FIG. Then force dry to fix the shape. Next, as shown in FIG. 1G, a hot-melt adhesive film 6
The surface skin 7 is then heat-bonded through the wafer to obtain a flat speaker diaphragm 8 as shown in FIG. 1H. Next, I will explain in detail how to determine and fix the shape of the paper honeycomb core.If you use a flat plate diaphragm, knots will always appear when it resonates, and for example, if you use a circular flat plate diaphragm, the knots will appear as circles.
この節円の形、大きさは、第２図に示すようにハニカム
の寸法Ｘ、Ｙにより決定されるため設計する時、コアの
寸法ｘ、Ｙが任意に形状が変られるということは、設計
自由度ができるということになる。このコアの寸法Ｘ、
Ｙを決定するのが第３図〜第６図に示す工程である。ま
ず第３図に示すようにペーパーハニカムコア４を固定ピ
ン９に引っかけ反対側には移動ピン１ｏを引っかける。The shape and size of this nodal circle are determined by the dimensions X and Y of the honeycomb as shown in Figure 2, so when designing, the dimensions x and Y of the core can be changed arbitrarily, which means that the design is free. This means that the degree can be achieved. The dimension of this core is X,
Determining Y is the process shown in FIGS. 3 to 6. First, as shown in FIG. 3, the paper honeycomb core 4 is hooked on the fixed pin 9, and the movable pin 1o is hooked on the opposite side.
次に、第４図に示すように移動ピン１ｏが規定寸法まで
移動し、止まる。次に第５図に示すようにそのままの状
態で、熱硬化性樹脂５の入った容器に浸清し、最後に第
６図に示すように固定ピン９と移動ピン１０にて固定さ
れたペーパーハニカムコア４を乾燥炉１１にて熱処理し
て、ペーパー−・ニカムコア４を規定寸法通りの形状に
固定する。Next, as shown in FIG. 4, the moving pin 1o moves to a specified dimension and stops. Next, as shown in FIG. 5, the paper is immersed in a container containing thermosetting resin 5 as it is, and finally, as shown in FIG. The honeycomb core 4 is heat treated in a drying oven 11 to fix the paper honeycomb core 4 into a shape with specified dimensions.
以上のようにして得られるスピーカ用平板振動板は、熱
硬化性樹脂の含浸率により第７図に示すような特性を得
る。The flat diaphragm for a speaker obtained as described above has characteristics as shown in FIG. 7 depending on the impregnation rate of the thermosetting resin.
第７図かられかるように熱硬化性樹脂の含浸率が２５％
未満の場合は混油圧縮強度、圧縮強度共に値が低く、３
０チよシ大きい場合は、両強度は高くなるが密度も高く
なり、特性悪化の原因となシまたコストも高くなるとい
う問題があった。As shown in Figure 7, the impregnation rate of thermosetting resin is 25%.
If it is less than 3, both the mixed oil compressive strength and the compressive strength are low.
If it is larger than 0, both strengths will increase, but the density will also increase, causing problems such as deterioration of characteristics and increased cost.
以上のことからペーパーハニカムコアの質量に対する熱
硬化性樹脂の含浸率は２５〜３０％が最適であると考え
られる。From the above, it is considered that the optimum impregnation ratio of the thermosetting resin to the mass of the paper honeycomb core is 25 to 30%.
コア材は、構成されているため、低コストで、重量が軽
く、耐湿性、耐熱性にすぐれ、機械強度にもすぐれたコ
アが得られることにより工業的価値の犬なるものである
。The core material is of great industrial value because it is low cost, light in weight, has excellent moisture resistance, heat resistance, and mechanical strength.
第１図Ａ−Ｈは本発明の一実施例におけるスピーカ用平
板振動板の製造方法を示す工程図、第２図〜第６図は、
同製造方法におけるコア形状を決めるだめの工程図、第
７図は同製造方法によって得られる振動板の特性図であ
る。
２・・・・・・接着剤、４・・・・・・ペーパーハニカ
ムコア、５・・・・・・熱硬化性樹脂。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
第３図
第４図1A to 1H are process diagrams showing a method of manufacturing a flat diaphragm for a speaker according to an embodiment of the present invention, and FIGS. 2 to 6 are
FIG. 7 is a process diagram for determining the core shape in the same manufacturing method, and is a characteristic diagram of a diaphragm obtained by the same manufacturing method. 2... Adhesive, 4... Paper honeycomb core, 5... Thermosetting resin. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4
Claims (3)
パーハニカムコアを任意の形状に成形した状態で熱硬化
性樹脂に含侵し、その後その樹脂を熱硬化させるスピー
カ用平板振動板の製造方法。(1) Manufacture of a flat diaphragm for speakers by applying adhesive to necessary parts and laminating the paper honeycomb core, which is then formed into an arbitrary shape, impregnated with thermosetting resin, and then thermosetting the resin. Method.
特許請求の範囲第１項記載のスピーカ用平板振動板の製
造方法。(2) The method for manufacturing a flat diaphragm for a speaker according to claim 1, wherein the impregnation rate of the thermosetting resin is 25 to 3 ooty.
ン樹脂またはエポキシ樹脂を用いた特許請求の範囲第１
項記載のスピーカ用平板振動板の製造方法・(3) Claim 1 in which phenol resin, melamine resin, or epoxy resin is used as the thermosetting resin
Method for manufacturing a flat diaphragm for speakers as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8434284A JPS60227596A (en) | 1984-04-25 | 1984-04-25 | Manufacture of diaphragm for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8434284A JPS60227596A (en) | 1984-04-25 | 1984-04-25 | Manufacture of diaphragm for speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60227596A true JPS60227596A (en) | 1985-11-12 |
Family
ID=13827831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8434284A Pending JPS60227596A (en) | 1984-04-25 | 1984-04-25 | Manufacture of diaphragm for speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60227596A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150136013A1 (en) * | 2012-05-24 | 2015-05-21 | Global Ip Holdings, Llc | Deep-drawn marine hull having a sandwich structure with a cellulose-based core and watercraft utilizing same |
-
1984
- 1984-04-25 JP JP8434284A patent/JPS60227596A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150136013A1 (en) * | 2012-05-24 | 2015-05-21 | Global Ip Holdings, Llc | Deep-drawn marine hull having a sandwich structure with a cellulose-based core and watercraft utilizing same |
| US9567037B2 (en) * | 2012-05-24 | 2017-02-14 | Global Ip Holdings, Llc | Deep-drawn marine hull having a sandwich structure with a cellulose-based core and watercraft utilizing same |
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