JPH0576096A - Speaker edge - Google Patents

Speaker edge

Info

Publication number
JPH0576096A
JPH0576096A JP25991991A JP25991991A JPH0576096A JP H0576096 A JPH0576096 A JP H0576096A JP 25991991 A JP25991991 A JP 25991991A JP 25991991 A JP25991991 A JP 25991991A JP H0576096 A JPH0576096 A JP H0576096A
Authority
JP
Japan
Prior art keywords
speaker
pet
polyethylene terephthalate
edge
speaker edge
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
Application number
JP25991991A
Other languages
Japanese (ja)
Other versions
JPH0795879B2 (en
Inventor
Toshihide Inoue
利秀 井上
Michizo Saeki
三千三 佐伯
Haruo Takenaka
治男 竹中
Masami Furubayashi
正美 古林
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.)
Onkyo Corp
Original Assignee
Onkyo Corp
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 Onkyo Corp filed Critical Onkyo Corp
Priority to JP3259919A priority Critical patent/JPH0795879B2/en
Publication of JPH0576096A publication Critical patent/JPH0576096A/en
Publication of JPH0795879B2 publication Critical patent/JPH0795879B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To provide the speaker edge not requiring a forming member, small in change with lapse of time, large in air viscous resistance, and capable of reducing the Q0 of the speaker. CONSTITUTION:Seven or eight PET threads 2 made of a PET single fiber 1 are bound. This external periphery is coated by urethane resin 3a, producing a PET fabric flux 3. The fabric of 0.5mm in width that permits cloth to breath made of this PET fiber flux 3 is heated for twelve seconds in a mold whose space of the upper and lower molds is 0.45mm with the roll edge shape heated up to 180 deg.C, promoting the crystallization. The molded object is taken out from the mold, cut into the prescribed shape.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、電気音響変換器におけ
るスピーカエッジに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker edge in an electroacoustic transducer.

【0002】[0002]

【従来の技術】スピーカエッジは、周知のように、スピ
ーカ振動板の外周縁とスピーカフレームとの間に設けら
れ、ダンパとともにボイスコイルやスピーカ振動板を正
しい位置に支持する機能を有するものである。
2. Description of the Related Art As is well known, a speaker edge is provided between an outer peripheral edge of a speaker diaphragm and a speaker frame and has a function of supporting a voice coil and a speaker diaphragm in a correct position together with a damper. ..

【0003】このスピーカエッジに要求される性能は、 (1) スピーカ振動板の振動を妨げぬように、スピーカ振
動板の振動方向には十分に高いコンプライアンスをもつ
こと。 (2) スピーカ振動板を正しい位置に支持する為に、スピ
ーカ振動板の横方向の動きには十分な剛性をもつこと。 (3) 特に低域における高調波歪の発生を抑えるべく、大
振幅領域まで駆動力−変位特性の直線性が良好なこと。 (4) 異常輻射の原因になるエッジ共振や反転振動を起こ
さないこと。 (5) 振動系部品として軽量であること。 等である。
The performance required for the speaker edge is as follows: (1) It has a sufficiently high compliance in the vibration direction of the speaker diaphragm so as not to disturb the vibration of the speaker diaphragm. (2) In order to support the speaker diaphragm in the correct position, it must have sufficient rigidity for lateral movement of the speaker diaphragm. (3) The linearity of the driving force-displacement characteristic is good even in a large amplitude region in order to suppress the occurrence of harmonic distortion particularly in the low range. (4) Do not cause edge resonance or inversion vibration that causes abnormal radiation. (5) Lightweight as a vibration system component. Etc.

【0004】これら条件を満足すべく、従来、形状付与
材としてフェノール樹脂を含浸した織布に吸振材として
アクリル樹脂等を塗布したもの、或いは不織布に熱硬化
性樹脂から成る形状付与材と吸振材とを塗布又は含浸し
たもの等を成形したものが使用されている。
In order to satisfy these conditions, conventionally, a woven fabric impregnated with a phenolic resin as a shape-imparting material is coated with an acrylic resin or the like as a vibration-absorbing material, or a non-woven fabric is made of a thermosetting resin and a shape-imparting material and a vibration-absorbing material. A molded product obtained by applying or impregnating and is used.

【0005】[0005]

【発明が解決しようとする課題】この様な構造を有する
従来のスピーカエッジは、 (1) スピーカ振動板を正しい位置に支持するための剛性
をスピーカエッジにもたせるため、形状付与材を使用し
ているが、この形状付与材はスピーカの使用とともに剛
性が劣化してスピーカのf0 が下がり、初期性能を長期
に渡って維持することができない。またコストや重量の
増加、形状付与材の不均一な含浸による品質のバラツキ
等を招きやすい。 (2) 空孔率又は厚みが十分でなく、空気が空孔を通過す
ることによる空気の粘性抵抗が小さいため、スピーカの
0 が大きくなり、その周波数特性上にf0 において鋭
いピークを生じる。という解決すべき課題があった。
The conventional speaker edge having such a structure uses (1) a shape-imparting material in order to give the speaker edge rigidity to support the speaker diaphragm at the correct position. However, this shape-imparting material deteriorates in rigidity as the speaker is used, and the f 0 of the speaker decreases, so that the initial performance cannot be maintained for a long period of time. In addition, the cost and weight increase, and the quality of the shape-imparting material is likely to be unevenly impregnated. (2) Porosity or thickness is not sufficient, and the viscous resistance of air due to air passing through the holes is small, so Q 0 of the speaker becomes large and a sharp peak appears at f 0 on the frequency characteristic. .. There was a problem to be solved.

【0006】そこで本発明は、上記従来例に付する欠点
を解消し、形状付与材が不要で、経時変化が少なく、空
気の粘性抵抗が十分に大きくスピーカのQ0が小さくで
きるスピーカエッジを提供することを目的とする。
Therefore, the present invention solves the above-mentioned drawbacks of the prior art, provides a speaker edge that does not require a shape-imparting material, has little change over time, and has a sufficiently large viscous resistance of air and a small Q 0 of the speaker. The purpose is to do.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
の本発明に係るスピーカエッジは、ポリエチレンテレフ
タレート繊維を用いた不織布を加熱加圧成形してなるこ
とを特徴とし、また前記ポリエチレンテレフタレート繊
維を用いた不織布が、少なくとも2本以上のポリエチレ
ンテレフタレート単繊維を寄り合わせて成るポリエチレ
ンテレフタレート糸を少なくとも2本以上束ねてこの外
周をウレタン樹脂で覆ったポリエチレンテレフタレート
繊維束を用いた不織布とすることもある。
A speaker edge according to the present invention for achieving the above object is characterized in that a nonwoven fabric using polyethylene terephthalate fiber is formed by heating and pressing, and the polyethylene terephthalate fiber is used. The non-woven fabric used may be a non-woven fabric using a polyethylene terephthalate fiber bundle in which at least two or more polyethylene terephthalate yarns formed by tying at least two or more polyethylene terephthalate single fibers are bundled and the outer periphery is covered with a urethane resin. ..

【0008】[0008]

【作用】そして、この様な構成のスピーカエッジでは、
加熱加圧成形されることにより、ポリエチレンテレフタ
レートの結晶化が進み硬度が上がるため、形状付与材を
必要としない。これにより、スピーカエッジの軽量化、
或いはほぼ同一の重量で良いならば厚みを増加させるこ
とが容易に行える。
[Operation] And, in the speaker edge having such a configuration,
By heat-press molding, crystallization of polyethylene terephthalate proceeds and hardness increases, so that a shape-imparting material is not required. This reduces the weight of the speaker edge,
Alternatively, if the weight is almost the same, the thickness can be easily increased.

【0009】さらにウレタン樹脂で覆われたポリエチレ
ンテレフタレート繊維束を用いたものでは、ウレタン樹
脂により内部損失が大幅に向上し、またその構造におい
て不織布としたことと相俟って、空孔率が均一で大きく
前記空気の粘性抵抗が大きくなる。
Further, in the case where the polyethylene terephthalate fiber bundle covered with urethane resin is used, the internal loss is greatly improved by the urethane resin, and the porosity is uniform in combination with the fact that it is a non-woven fabric. This greatly increases the viscous resistance of the air.

【0010】[0010]

【実施例】図1により、本発明の実施例を詳述する。図
1は実施例の構造説明図であり、図1において1 はポリ
エチレンテレフタレート(以下PET)単繊維、2 はP
ET糸、3 はPET繊維束、3aはウレタン樹脂である。
Embodiment An embodiment of the present invention will be described in detail with reference to FIG. FIG. 1 is a structural explanatory view of the embodiment. In FIG. 1, 1 is polyethylene terephthalate (PET) single fiber, 2 is P
ET yarn, 3 is a PET fiber bundle, and 3a is a urethane resin.

【0011】PET単繊維1 を寄り合わせたPET糸2
を7〜8本ずつ束ね、この外周をウレタン樹脂3aでコー
ティングし、PET繊維束3 を作製する。このPET繊
維束3 を絡ませ合った通気性のある厚さ0.5mmの不織
布を、上下金型の隙間が0.45mmのロールエッジ形状
の180℃に加熱した金型にて12秒間加熱加圧成形を
行い、結晶化を促進させ、金型より成形物を取り出し、
所定の形状に切断することにより本願に係るスピーカエ
ッジが得られる。
PET yarn 2 in which PET monofilaments 1 are twisted together
7 to 8 are bundled and the outer periphery thereof is coated with urethane resin 3a to prepare a PET fiber bundle 3. This non-woven fabric with a thickness of 0.5 mm in which PET fiber bundles 3 are entangled with each other is heated and pressed for 12 seconds by a mold heated to 180 ° C. in a roll edge shape with a gap of 0.45 mm between the upper and lower molds. Perform molding, promote crystallization, take out the molded product from the mold,
The speaker edge according to the present application can be obtained by cutting into a predetermined shape.

【0012】以上、本発明に係るスピーカエッジについ
て代表的と思われる実施例を基に詳述したが、本発明の
実施態様は、上記実施例に限定されるものではなく、前
記した特許請求の範囲に記載の構成要件を具備し、本発
明にいう作用を呈し、以下に述べる効果を有する限りに
おいて、適宜改変して実施しうるものである。
Although the speaker edge according to the present invention has been described above in detail based on the representative examples, the embodiment of the present invention is not limited to the above-mentioned examples, and the above-mentioned claims The present invention can be appropriately modified and carried out as long as it has the constituent requirements described in the range, exhibits the action of the present invention, and has the effects described below.

【0013】[0013]

【効果】実施例で得られた内径40mm,外径68mm,ロ
ール高さ3.3mmのスピーカエッジを用いて外磁型ドー
ムスピーカを完成した。その周波数−出力音圧,アドミ
タンス特性を図2に示す。また比較のため従来例とし
て、PET織布にアクリル樹脂吸振材を塗布したものを
前記と同様に成形したスピーカエッジを用いて外磁型ド
ームスピーカを完成させた。その周波数−出力音圧,ア
ドミタンス特性を図2に示す。
[Effect] An outer magnet type dome speaker was completed by using the speaker edge having an inner diameter of 40 mm, an outer diameter of 68 mm, and a roll height of 3.3 mm obtained in the example. The frequency-output sound pressure and admittance characteristics are shown in FIG. As a conventional example for comparison, an outer magnet type dome speaker was completed by using a PET woven cloth coated with an acrylic resin vibration-absorbing material and molding the speaker edge in the same manner as described above. The frequency-output sound pressure and admittance characteristics are shown in FIG.

【0014】図2からも明らかなように、本願に係るス
ピーカエッジは、空気の粘性抵抗が大きいことにより、
スピーカのQ0 が小さくなり、f0 でのピークが抑えら
れて、周波数特性が平坦化されるため、音響特性の優れ
たスピーカが得られる。更に形状付与材を用いる必要が
ないため、製造段階で均一な品質を得やすく、形状付与
材の経時変化によるスピーカエッジの劣化を生じない。
As is clear from FIG. 2, the speaker edge according to the present invention has a large viscous resistance of air,
Since Q 0 of the speaker is reduced, the peak at f 0 is suppressed, and the frequency characteristic is flattened, a speaker having excellent acoustic characteristics can be obtained. Further, since it is not necessary to use the shape-imparting material, it is easy to obtain uniform quality at the manufacturing stage, and the deterioration of the speaker edge due to the aging of the shape-imparting material does not occur.

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

【図1】実施例の構造説明図。FIG. 1 is a structural explanatory view of an embodiment.

【図2】実施例及び従来例の周波数−出力音圧,アドミ
タンス特性図。
FIG. 2 is a frequency-output sound pressure and admittance characteristic diagram of an example and a conventional example.

【符号の説明】[Explanation of symbols]

1 PET単繊維 2 PET糸 3 PET繊維束 3a ウレタン樹脂 1 PET monofilament 2 PET yarn 3 PET fiber bundle 3a Urethane resin

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 B29L 31:38 4F (72)発明者 古林 正美 大阪府寝屋川市日新町2番1号 オンキヨ ー株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Reference number within the agency FI Technical indication location B29L 31:38 4F (72) Inventor Masami Furubayashi 2-1, Nisshin-cho, Neyagawa-shi, Osaka Onkyo stock In the company

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ポリエチレンテレフタレート繊維を用い
た不織布を加熱加圧成形してなることを特徴とするスピ
ーカエッジ。
1. A speaker edge comprising a non-woven fabric made of polyethylene terephthalate fiber, which is formed by heating and pressing.
【請求項2】 前記ポリエチレンテレフタレート繊維を
用いた不織布が、少なくとも2本以上のポリエチレンテ
レフタレート単繊維を寄り合わせて成るポリエチレンテ
レフタレート糸を少なくとも2本以上束ねてこの外周を
ウレタン樹脂で覆ったポリエチレンテレフタレート繊維
束を用いた不織布であることを特徴とする請求項1記載
のスピーカエッジ。
2. A polyethylene terephthalate fiber in which the non-woven fabric using the polyethylene terephthalate fiber has at least two polyethylene terephthalate yarns formed by laying together at least two or more polyethylene terephthalate single fibers and bundling at least two of them and covering the outer periphery with a urethane resin. The speaker edge according to claim 1, wherein the speaker edge is a non-woven fabric using a bundle.
JP3259919A 1991-09-10 1991-09-10 Speaker edge Expired - Lifetime JPH0795879B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3259919A JPH0795879B2 (en) 1991-09-10 1991-09-10 Speaker edge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3259919A JPH0795879B2 (en) 1991-09-10 1991-09-10 Speaker edge

Publications (2)

Publication Number Publication Date
JPH0576096A true JPH0576096A (en) 1993-03-26
JPH0795879B2 JPH0795879B2 (en) 1995-10-11

Family

ID=17340756

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3259919A Expired - Lifetime JPH0795879B2 (en) 1991-09-10 1991-09-10 Speaker edge

Country Status (1)

Country Link
JP (1) JPH0795879B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5379822A (en) * 1976-12-24 1978-07-14 Ciba Geigy Ag Phosphonoocarboxyl hybrid acid derivatives process for preparing same and aqueous system treating method using same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5379822A (en) * 1976-12-24 1978-07-14 Ciba Geigy Ag Phosphonoocarboxyl hybrid acid derivatives process for preparing same and aqueous system treating method using same

Also Published As

Publication number Publication date
JPH0795879B2 (en) 1995-10-11

Similar Documents

Publication Publication Date Title
US7849958B2 (en) Vibration system part for speaker device and manufacturing method thereof
US20050232457A1 (en) Speaker-use diaphragm and speaker
EP1450580A2 (en) Speaker diaphragms, manufacturing methods of the same, and dynamic speakers
JPH0576096A (en) Speaker edge
JP2667745B2 (en) Electroacoustic transducer
US4030564A (en) Loud speaker with stable damping
JP2788998B2 (en) Laminated materials for vibration parts and speaker vibration parts
JP3241514B2 (en) Method for manufacturing speaker vibration member
JPH09275598A (en) Centering spider for speaker and speaker using it
JPH0257096A (en) Diaphragm for acoustic device
JPH06153292A (en) Edge material for speaker and free edge cone for speaker
JP2993251B2 (en) Speaker damper
JPH0510477Y2 (en)
JP3327004B2 (en) Speaker damper
CN113498008B (en) Loudspeaker vibrating reed locally provided with anti-noise layer and manufacturing method thereof
CN109327790B (en) Loudspeaker vibrating piece cloth material using jumper wire as identification and manufacturing method thereof
JP3111631B2 (en) Speaker damper
JPH0662494A (en) Speaker oscillation system supporting body and speaker
JPH05328492A (en) Speaker damper
JPH1013992A (en) Damper for loudspeaker and loudspeaker using the same
JPS62193398A (en) Diaphragm for speaker
JPS5828960B2 (en) Diaphragm for speakers
JPH07101955B2 (en) Vibration plate for electro-acoustic transducer
JPH09247789A (en) Diaphragm for electroacoustic transducer
JP3208647B2 (en) Speaker damper