JPH01896A - Diaphragm for speaker - Google Patents

Diaphragm for speaker

Info

Publication number
JPH01896A
JPH01896A JP62-155852A JP15585287A JPH01896A JP H01896 A JPH01896 A JP H01896A JP 15585287 A JP15585287 A JP 15585287A JP H01896 A JPH01896 A JP H01896A
Authority
JP
Japan
Prior art keywords
diaphragm
speaker
edge
cone
present
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
JP62-155852A
Other languages
Japanese (ja)
Other versions
JPS64896A (en
Inventor
均 佐藤
Original Assignee
松下電器産業株式会社
Filing date
Publication date
Application filed by 松下電器産業株式会社 filed Critical 松下電器産業株式会社
Priority to JP62-155852A priority Critical patent/JPH01896A/en
Publication of JPS64896A publication Critical patent/JPS64896A/en
Publication of JPH01896A publication Critical patent/JPH01896A/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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て利用されるスピーカ用撮動板に
関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a speaker imaging plate used in various types of audio equipment.

従来の技術 従来の振動板エツジ基材には、コーンと一体化された天
然パルプ100%のフィックストエツジ、又コーンと貼
り合わせるフリーエツジとしては天然バルブシート、S
BR・NBR等の樹脂を含浸した織布、ウレタン発泡体
などがあった。
Conventional technology Conventional diaphragm edge base materials include 100% natural pulp fixed edge that is integrated with the cone, and natural valve seat and S as free edge that is bonded to the cone.
There were woven fabrics impregnated with resins such as BR and NBR, and urethane foams.

発明が解決しようとする問題点 フィックストエツジはコーンと一体化されているため最
低共振周波数げ。) が高く重低音再生が出来ない。一
方、フリーエツジの中で天然パルブンートを基材とした
エツジは振幅を取り過ぎるとエツジが破壊するため入力
を大きくできない。
Problems that the invention aims to solve: Since the fixed edge is integrated with the cone, the lowest resonant frequency is low. ) is high and heavy bass cannot be reproduced. On the other hand, among free edges, an edge based on natural parbunut cannot be used with a large input because the edge will be destroyed if the amplitude is too high.

また従来の織布及びウレタンエツジはコーン紙とエツジ
部を別々に成形して後で両者を接着剤で貼り合わせる工
程であるため振動板完成品のコストが著るしく高くなる
といった問題があった。本発明はこのような問題点を解
決出来るスピーカ用振動板を提供せんとするものである
Furthermore, with conventional woven fabric and urethane edges, the process of molding the cone paper and the edge portion separately and then bonding the two together using adhesives resulted in a significant increase in the cost of the finished diaphragm product. . The present invention aims to provide a speaker diaphragm that can solve these problems.

問題点を解決するだめの手段 本発明は、織布を基材としたエツジ材に熱硬化性樹脂を
含浸し、さらに片面にアクリル系樹脂を樹脂によって成
形性及び硬さを保持し、またアクリル系樹脂は高温で接
着性を有するためコーン部と接着され、振動板完成品を
得ることができる。
Means to Solve the Problems The present invention involves impregnating an edge material based on woven fabric with a thermosetting resin, and further applying an acrylic resin on one side to maintain moldability and hardness with the resin. Since the resin has adhesive properties at high temperatures, it can be bonded to the cone part to obtain a finished diaphragm product.

実施例 以下、本発明の一実施例におけるスピーカ用振動板につ
いて説明する。
EXAMPLE A speaker diaphragm according to an example of the present invention will be described below.

80 g r 7m  の目付量の織布エツジ基材に固
形分10チのフェノール系樹脂を約5gr/m2含浸し
、約12o′CKて乾燥する。乾燥後片面にアクリル系
樹脂を約40gr/m2コーティングし、約120℃て
て乾燥する。このエツジ基材を所定の形状に打ち抜いた
後、金型温度200℃、プレス時間8SeCの条件でコ
ーン部と成形同時接着し、振動板を得だ。
A woven fabric edge base material having a basis weight of 80 g r 7 m is impregnated with about 5 gr/m2 of phenolic resin having a solid content of 10 g, and dried at about 12 o'CK. After drying, one side is coated with about 40g/m2 of acrylic resin and dried at about 120°C. After punching this edge base material into a predetermined shape, it was bonded to the cone portion at the same time as molding under conditions of a mold temperature of 200° C. and a press time of 8 SeC to obtain a diaphragm.

図に本発明のスピーカ用振動板を使用したスピーカAと
従来の布エツジを使用したスピーカBのそれぞれの周波
数特性を示す。本実施例品はエツジ材の重量が軽く、ま
た接着剤レスのため振動板の重置が軽減され、音圧レベ
ルの高い、より高域共振周波数が高いスピーカを提供で
きる。
The figure shows the frequency characteristics of speaker A using the speaker diaphragm of the present invention and speaker B using a conventional cloth edge. In the product of this example, the weight of the edge material is light, and since there is no adhesive, it is possible to reduce the need for overlapping diaphragms, and it is possible to provide a speaker with a high sound pressure level and a higher high-frequency resonant frequency.

発明の効果 以上のように本発明の振動板は構成されるだめ、軽量で
低コストのスピーカ用振動板を簡易な方法で型造するこ
とが可能で、工業的価値の犬なるものである。
Effects of the Invention As described above, the diaphragm of the present invention is constructed so that a lightweight and low-cost speaker diaphragm can be molded by a simple method, and is of great industrial value.

【図面の簡単な説明】[Brief explanation of the drawing]

図は従来の振動板と本発明の振動板を用いだスピーカの
音圧周波数特性図である。
The figure is a sound pressure frequency characteristic diagram of a speaker using a conventional diaphragm and a diaphragm of the present invention.

Claims (1)

【特許請求の範囲】[Claims] 綿布を基材としたエッジ材に熱硬化性樹脂を含浸し、片
面にアクリル系樹脂をコーティングし、このコーティン
グ面をコーン面に成形接着してなるスピーカ用振動板。
A speaker diaphragm made by impregnating a cotton cloth-based edge material with thermosetting resin, coating one side with acrylic resin, and molding and adhering this coated surface to the cone surface.
JP62-155852A 1987-06-23 Diaphragm for speaker Pending JPH01896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-155852A JPH01896A (en) 1987-06-23 Diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-155852A JPH01896A (en) 1987-06-23 Diaphragm for speaker

Publications (2)

Publication Number Publication Date
JPS64896A JPS64896A (en) 1989-01-05
JPH01896A true JPH01896A (en) 1989-01-05

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9056519B2 (en) 2008-07-18 2015-06-16 Ideapaint, Inc. Ambient cure solvent-based coatings for writable-erasable surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9056519B2 (en) 2008-07-18 2015-06-16 Ideapaint, Inc. Ambient cure solvent-based coatings for writable-erasable surfaces

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