JPH04115700A - Damper for speaker - Google Patents
Damper for speakerInfo
- Publication number
- JPH04115700A JPH04115700A JP23174890A JP23174890A JPH04115700A JP H04115700 A JPH04115700 A JP H04115700A JP 23174890 A JP23174890 A JP 23174890A JP 23174890 A JP23174890 A JP 23174890A JP H04115700 A JPH04115700 A JP H04115700A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- phenol
- fibers
- speaker
- fiber
- 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
- 239000005011 phenolic resin Substances 0.000 claims abstract description 14
- 229920000742 Cotton Polymers 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 11
- 229920006282 Phenolic fiber Polymers 0.000 claims description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 9
- 229920001568 phenolic resin Polymers 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 abstract description 10
- 238000005452 bending Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- LMYZQUNLYGJIHI-SPONXPENSA-N 4alpha-methyl-5alpha-cholest-7-en-3beta-ol Chemical compound C[C@@H]1[C@@H](O)CC[C@]2(C)[C@@H](CC[C@@]3([C@@H]([C@H](C)CCCC(C)C)CC[C@H]33)C)C3=CC[C@H]21 LMYZQUNLYGJIHI-SPONXPENSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- LMYZQUNLYGJIHI-UHFFFAOYSA-N Methostenol Natural products CC1C(O)CCC2(C)C(CCC3(C(C(C)CCCC(C)C)CCC33)C)C3=CCC21 LMYZQUNLYGJIHI-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種音響機器に用いられるスピーカ用ダンパー
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a speaker damper used in various types of audio equipment.
従来の技術
近年、音響機器においては大入力を印加して演奏を楽し
む傾向がある。このようなことから、スピーカ用ダンパ
ーは経時変化の少ないダンパーの開発が望まれているが
、満足できるものができていないのが現状である。BACKGROUND OF THE INVENTION In recent years, there has been a trend in audio equipment to enjoy performances by applying large inputs. For these reasons, there is a desire to develop a damper for speakers that changes less over time, but at present no satisfactory damper has been developed.
以下に従来のスピーカ用ダンパーについて説明する。A conventional speaker damper will be explained below.
第４図は従来のスピーカ用ダンパーの要部の拡大断面を
示すものである。第４図において、木綿布１にフェノー
ル樹脂かメラミン樹脂などの熱硬化樹脂２を含浸し、こ
れを２００℃前後の高温にて加熱成型して構成されてい
た。FIG. 4 shows an enlarged cross-section of the main parts of a conventional speaker damper. In FIG. 4, a cotton cloth 1 was impregnated with a thermosetting resin 2 such as a phenol resin or a melamine resin, and this was formed by heating and molding at a high temperature of around 200°C.
発明が解決しようとする課題
しかしながら上記の従来の構成では、まず木綿布１が耐
熱性に劣り、２００℃前後の加熱成形時においても物性
劣化により、耐入力用のスピーカのダンパーとしては不
適なものとなっていた。しかも、木綿布１と熱硬化性樹
脂２との相溶性がないため、振動や屈曲によって互いに
剥離され、ダンパーとしての特性が劣化するという問題
点を有していた。Problems to be Solved by the Invention However, in the conventional configuration described above, the cotton cloth 1 has poor heat resistance, and its physical properties deteriorate even during heat molding at around 200°C, making it unsuitable as a damper for an input-resistant speaker. It became. Moreover, since the cotton cloth 1 and the thermosetting resin 2 are not compatible with each other, they are separated from each other by vibration or bending, resulting in a problem in that the properties as a damper deteriorate.
本発明は上記従来の問題点を解決するもので、耐熱性を
改良し、大入力を印加しても経時変化の少ないスピーカ
用ダンパーを提供することを目的としたものである。The present invention solves the above-mentioned conventional problems, and aims to provide a damper for a speaker that has improved heat resistance and exhibits little change over time even when a large input is applied.
課題を解決するための手段
この課題を解決するために本発明のダンパーは、フェノ
ール系繊維と木綿繊維から構成される基布にフェノール
系樹脂を含浸し、約２００℃の温度にて成型して構成し
たものである。Means for Solving the Problems In order to solve the problems, the damper of the present invention is made by impregnating a base fabric made of phenolic fibers and cotton fibers with phenolic resin and molding it at a temperature of about 200°C. It is composed of
作用
この構成におけるダンパーは耐熱性にすぐれ、フェノー
ル系樹脂と相溶性の良好なフェノール系繊維と木綿繊維
から構成される基布にフェノール系樹脂を含浸し加熱成
型することによって得られるもので、加熱成形時の物性
劣化の少ない、大入力を印加した時の振動や屈曲に対し
て経時変化の少ないものとなる。Function The damper with this structure has excellent heat resistance and is obtained by impregnating a base fabric made of phenolic fibers and cotton fibers, which have good compatibility with phenolic resin, with phenolic resin and then heat-molding it. There is little deterioration of physical properties during molding, and there is little change over time against vibration and bending when large inputs are applied.
実施例
以下、本発明の一実施例について、図面を参照しながら
説明する。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.
第２図により説明すると、３は界磁部であり、この界磁
部３はセンターボール４を備えたプレート５．リング状
のマグネット６、同じくリング状の上部プレート７によ
って構成されている。ここで示した界磁部３は外磁型と
称されるものであるが壷形ヨーク内に柱状マグネットま
たは柱状マグネットとポールピースの積層体を組込ん′
７−構成した内磁型と称される界磁部であってもよい。To explain with reference to FIG. 2, reference numeral 3 denotes a field section, and this field section 3 includes a plate 5.3 having a center ball 4. It is composed of a ring-shaped magnet 6 and a ring-shaped upper plate 7. The field section 3 shown here is called an external magnet type, but it incorporates a columnar magnet or a laminate of a columnar magnet and a pole piece in a pot-shaped yoke.
7- may be a field section called an internal magnet type.
この界磁部３にはフレーム８が結合され、このフレーム
８の周縁部には、ガスケット９とともに振動板１０の周
縁部が接着などに結合されている。この振動板１０の中
央部上面にはダストキャップ１１が貼り付けられるとと
もに、この振動板１０の中央部下面には、ボイスコイル
１２が結合され、このボイスコイル１２は界磁部３の磁
気ギャップ１３に偏心することな（はまり合うように中
間部をダンパー１４で支持されている。A frame 8 is coupled to the field portion 3, and a gasket 9 and a diaphragm 10 are bonded to the circumferential edge of the frame 8 by adhesive or the like. A dust cap 11 is attached to the upper surface of the central portion of the diaphragm 10 , and a voice coil 12 is coupled to the lower surface of the central portion of the diaphragm 10 . The middle part is supported by a damper 14 so that it does not become eccentric.
このダンパー１４は、基布として、第１図に示すように
フェノール系繊維１５と木綿繊維１６との混紡糸から構
成され、これにフェノール系樹脂１７を含浸して、加熱
成型したものである。The damper 14 is made of a blended yarn of phenolic fibers 15 and cotton fibers 16 as a base fabric, as shown in FIG. 1, which is impregnated with a phenolic resin 17 and then heated and molded.
フェノール系樹脂１７と、フェノール系繊維１５とは両
者の化学的構造が類似し、加熱成型時に次式のような反
応によって繊維接点が強固に結合し、振動や屈曲に対し
てもすぐれた性能を有している。The chemical structures of the phenolic resin 17 and the phenolic fiber 15 are similar, and during heat molding, the fiber contact points are firmly bonded by the reaction shown in the following formula, and they exhibit excellent performance against vibration and bending. have.
次に、本発明におけるダンパー１４と、従来のダンパー
との性能についての比較例を示す。Next, a comparative example of the performance of the damper 14 according to the present invention and a conventional damper will be shown.
［物性１
本発明ダンパー１４の基布の構成はフェノール系繊維１
５を４０％（ｗｔ％）と木綿繊維１６を６０％（ｗｔ％
）との混紡糸からなるもので、これにフェノール系樹脂
を含浸後、２００℃で５秒間加熱成型したダンパーおよ
び、再度熱処理によって強度保持率を測定した結果を下
記の表１に示す。保持率は熱処理前を１００とした値で
ある。 表 １［経時変化（
Ｆ、の変化率で測定）］
同じ入力条件におけるＦ０変化率の測定結果を下記の表
２に示す。[Physical properties 1 The composition of the base fabric of the damper 14 of the present invention is phenolic fiber 1
40% (wt%) of 5 and 60% (wt%) of cotton fiber 16.
), which was impregnated with a phenolic resin and then heat-molded at 200°C for 5 seconds, and the strength retention was measured by heat treatment again. The results are shown in Table 1 below. The retention rate is a value with the value before heat treatment set as 100. Table 1 [Changes over time (
Measured by the rate of change of F)] The measurement results of the rate of change of F0 under the same input conditions are shown in Table 2 below.
本発明のダンパーのＦｏの変化率が従来例のものに比べ
て少ないのは、フェノール系繊維１５がフェノール系樹
脂１７との相溶効果によって繊維間の結合性および繊維
接点での結合性が良好なことが原因となっている。The reason why the rate of change in Fo of the damper of the present invention is smaller than that of the conventional example is because the phenolic fiber 15 has a compatibility effect with the phenolic resin 17, which has good bonding properties between fibers and bonding properties at fiber contact points. This is the cause.
［ダンパーのヒステリシス］ 第３図はダンパー１４のヒステリシスを示す。[Damper hysteresis] FIG. 3 shows the hysteresis of the damper 14.
実線が本発明のダンパーを示し、破線が従来のダンパー
を示している。本発明の方がはるかにすぐれた特性を示
している。The solid line shows the damper of the present invention, and the broken line shows the conventional damper. The present invention shows much better properties.
なお、上記フェノール系繊維１５とは一般に、フェノー
ルまたはクレゾール、７０ロフエノールなどの変性フェ
ノールの少なくとも１種以上とホルムアルデヒドを代表
とするアルデヒド類とを重縮合して得られるノボラック
樹脂あるいはそれらの混合物を紡糸して得られるもので
ある。The phenolic fiber 15 is generally made of a novolak resin obtained by polycondensing phenol or at least one modified phenol such as cresol or 70 lophenol with an aldehyde such as formaldehyde, or a mixture thereof. It is obtained by doing.
また、このフェノール系繊維１５と木綿繊維１６の他に
耐熱性のすぐれた芳香族ポリアミド繊維。In addition to the phenolic fibers 15 and cotton fibers 16, aromatic polyamide fibers with excellent heat resistance are also used.
ガラス繊維などを用いてもよく、これらの繊維は目的に
応じて単独または二種類以上を混合して使用することが
できる。Glass fibers or the like may be used, and these fibers may be used alone or in combination of two or more types depending on the purpose.
発明の効果
以上のように本発明のスピーカ用ダンパーは構成される
ために熱に対する強度保持率が高く、Ｆ０変化率が少な
く、ヒステリシスに優れたもので、大入力用スピーカと
してもすぐれた効果を有する工業的価値の大なるもので
ある。Effects of the Invention As described above, the speaker damper of the present invention has a high strength retention rate against heat due to its structure, has a small F0 change rate, has excellent hysteresis, and has excellent effects as a large input speaker. It has great industrial value.
第１図は本発明のスピーカ用ダンパーの要部の拡大断面
図、第２図は本発明のスピーカ用ダンパーを用いたスピ
ーカの一実施例を示す半断面図、第３図は本発明のスピ
ーカ用ダンパーと従来のスピーカ用ダンパーとのヒステ
リシスを示す特性図、第４図は従来のスピーカ用ダンパ
ーの要部の拡大断面図である。
１５・・・・・・フェノール系繊維、１６・・・・・・
木綿繊維、１７・・・・・・フェノール系樹脂。
代理人の氏名 弁理士 小蝦治明ほか２名第２図FIG. 1 is an enlarged sectional view of a main part of a speaker damper of the present invention, FIG. 2 is a half sectional view showing an embodiment of a speaker using the speaker damper of the present invention, and FIG. 3 is a speaker of the present invention. FIG. 4 is an enlarged sectional view of the main part of the conventional speaker damper. 15...Phenolic fiber, 16...
Cotton fiber, 17...phenolic resin. Name of agent: Patent attorney Haruaki Koebi and 2 others Figure 2
Claims (1)
ノール系樹脂を含浸して成型して得られるスピーカ用ダ
ンパー。A speaker damper obtained by impregnating a base fabric made of phenolic fiber and cotton fiber with phenolic resin and molding it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23174890A JP3193920B2 (en) | 1990-08-31 | 1990-08-31 | Speaker damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23174890A JP3193920B2 (en) | 1990-08-31 | 1990-08-31 | Speaker damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04115700A true JPH04115700A (en) | 1992-04-16 |
| JP3193920B2 JP3193920B2 (en) | 2001-07-30 |
Family
ID=16928423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23174890A Expired - Fee Related JP3193920B2 (en) | 1990-08-31 | 1990-08-31 | Speaker damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3193920B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5780968B2 (en) * | 2009-11-17 | 2015-09-16 | 倉敷紡績株式会社 | Spun yarn and intermediate for fiber reinforced resin, and fiber reinforced resin molded product using the same |
-
1990
- 1990-08-31 JP JP23174890A patent/JP3193920B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3193920B2 (en) | 2001-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060249327A1 (en) | Vibration system part for speaker device and manufacturing method thereof | |
| JPH04115700A (en) | Damper for speaker | |
| JPS5910639B2 (en) | speaker | |
| JPS62263799A (en) | Damper for speaker | |
| JP3353491B2 (en) | Speaker | |
| US6772855B2 (en) | Damper for speaker and method of producing the same | |
| JPH04326298A (en) | Diaphragm for speaker | |
| JP3327004B2 (en) | Speaker damper | |
| JPH06225390A (en) | Damper for speaker | |
| JP2936677B2 (en) | Speaker | |
| JP2506498Y2 (en) | Vibration plate for electro-acoustic transducer | |
| JPH0380800A (en) | Manufacture of damper for speaker | |
| JPH028475Y2 (en) | ||
| JP2940095B2 (en) | Method of manufacturing diaphragm for speaker | |
| JPS5830796B2 (en) | Manufacturing method of speaker damper | |
| JPH04340895A (en) | Dust cap for speaker | |
| JP2002374596A (en) | Speaker damper and its manufacturing method | |
| KR101758568B1 (en) | Damper for a sound system speaker and the manufacturing process thereof | |
| JPH0698394A (en) | Production of speaker vibrating parts | |
| JPS623997Y2 (en) | ||
| JPH0573118B2 (en) | ||
| JPH0548679B2 (en) | ||
| JPS623990Y2 (en) | ||
| JP2961201B2 (en) | Dust cap for speaker | |
| JPH0378840B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |