JPS609297A - Horn for loudspeaker - Google Patents

Horn for loudspeaker

Info

Publication number
JPS609297A
JPS609297A JP11779983A JP11779983A JPS609297A JP S609297 A JPS609297 A JP S609297A JP 11779983 A JP11779983 A JP 11779983A JP 11779983 A JP11779983 A JP 11779983A JP S609297 A JPS609297 A JP S609297A
Authority
JP
Japan
Prior art keywords
horn
layer
resin
laid
modulus
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
JP11779983A
Other languages
Japanese (ja)
Inventor
Tetsuyuki Yui
由井 哲之
Yoshio Hirasawa
平沢 佳男
Tetsuo Ikeda
哲雄 池田
Takashi Shiono
高志 塩野
Akira Yasue
安江 章
Hajime Imada
始 今田
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 JP11779983A priority Critical patent/JPS609297A/en
Publication of JPS609297A publication Critical patent/JPS609297A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To obtain a high Young's modulus, to raise a horn resonance frequency, and to obtain a reproducing sound which has suppressed a horn resonance, by laminating a thermosetting resin to a prescribed shape by using a high elastic fiber as a reinforcing material. CONSTITUTION:1wt% methyl ethyl ketone peroxide as a catalyst, and 0.5wt% cobalt naphthenate as an accelerator are added to an unsaturated polyester resin, and stirred. Subsequently, a nonwoven cloth of a glass fiber is laid on a horn mold made of metal, wood or resin, a mixed liquid of said unsaturated polyester resin is applied to this nonwoven cloth with a brush and impregnated, and defoamed by a rubber spatula or a roller. A nonwoven cloth is laid on said layer, and the second layer is formed by a similar operation. Also, woven cloth is laid on said layer, and thereafter, it is laminated to a multi-layer by repeating the similar operation. In this way, a high Young's modulus and a high internal resistance are obtained, a horn resonance frequency is raised, and also a horn resonance can be suppressed.

Description

【発明の詳細な説明】 本発明は高弾性繊維を補強材として熱硬化性樹脂を9f
定形状に積層してなるスピーカー用ホーンに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention utilizes a thermosetting resin with high elasticity fiber as a reinforcing material.
This invention relates to a speaker horn formed by laminating layers in a regular shape.

従来ノスピーカー用ホーン月利としては、亜鉛、アルミ
ニウムあるいはこれらの合金、または、塩化ビニル樹脂
、ABS樹脂等の熱可塑性樹脂、フェノール樹脂、エポ
キシ樹脂等の熱硬化性樹脂が用いられていた。
Conventionally, zinc, aluminum, or an alloy thereof, or a thermoplastic resin such as vinyl chloride resin or ABS resin, or a thermosetting resin such as phenol resin or epoxy resin has been used as a horn material for a speaker.

前者は、ヤング率が大きく十分な強度が得られるか、内
部損失が小さいためにホーンの共振が大きく、著しく音
質を害する欠点があった。後者は、内部4p失が比較的
大きくホーンの共振がある程度押えられるか、ヤング率
が小さいだめに十分な強度が得られないばかりでなく、
ホーンの共振周波数が低い周欧数に下シ、聴感上悪影響
を与え−る欠点かあった。
The former has the drawback that either the Young's modulus is large and sufficient strength can be obtained, or the internal loss is small, resulting in large horn resonance, which significantly impairs sound quality. In the latter case, the internal 4p loss is relatively large and the resonance of the horn is suppressed to some extent, or the Young's modulus is small, so not only is sufficient strength not obtained.
The disadvantage was that the horn had a low resonant frequency, which had a negative impact on the audibility.

本発明はこのような従来欠点を改良したもので、以下に
説明する。
The present invention improves on these conventional drawbacks, and will be explained below.

本発明は、高弾性繊維を補強材として熱硬化性樹脂を所
定形状に積層してなるスピーカー用ホーンである。
The present invention is a speaker horn made by laminating thermosetting resin in a predetermined shape using high elastic fiber as a reinforcing material.

本発明における補強材としての高弾性繊維とは、ガラス
繊糺、炭素繊維、炭化ケイ素繊維、アルミf繊維、ボロ
ン/タングステン繊維、芳香族ホリアミド繊維(アラミ
ツド繊維)などであり、各高弾性繊維補強材としては、
高弾性繊維の単繊維またはそれらを複数本束ねたものを
縦糸、横糸として織った織布、または、単繊維を所定の
寸法に切断しまたは切断すること々く、無方向に均一に
配布して所定の厚みに積み重ね結合剤で固めた不織布が
用いられる。
The high modulus fibers used as reinforcing materials in the present invention include glass fibers, carbon fibers, silicon carbide fibers, aluminum F fibers, boron/tungsten fibers, aromatic holamide fibers (aramid fibers), and various high modulus fiber reinforcements. As a material,
Woven fabrics made of single fibers of high modulus fibers or bundles of multiple fibers used as warp and weft threads, or single fibers that are cut into predetermined dimensions or evenly distributed in no direction. Nonwoven fabrics stacked to a predetermined thickness and hardened with a binder are used.

本発明における熱硬化性樹脂とは、不飽和ポリエステル
樹脂、エポキシ樹脂、フェノール樹脂などである。
Thermosetting resins in the present invention include unsaturated polyester resins, epoxy resins, phenol resins, and the like.

以下、本発明の一定施例を説明する。Certain embodiments of the invention will now be described.

不飽和ポリエステル樹脂に、触媒としてメチルエチルケ
トンパーオキシド 1重量%、促進剤トしてチンテン酸
コバルト0.5重量%を加え、よく攪拌する。
1% by weight of methyl ethyl ketone peroxide as a catalyst and 0.5% by weight of cobalt tintenate as an accelerator are added to the unsaturated polyester resin and stirred well.

・次に、金属、木また樹脂製のホーン型の上にガラス繊
維の不織布(サーフエースマット)を敷きつめ、この不
織布に上記不飽和ポリエステル樹脂の混合液を刷毛で塗
布含浸させ、ゴムベラまたはローラで脱泡する。その上
に、不織布(マット)を敷きつめ、同様の作業をして第
2層を成形する0さらにその上に、織布(ロービングク
ロス)を敷きつけ、以下同様の作業をくシ返して多層に
積層する。
・Next, spread a glass fiber non-woven fabric (Surf Ace Mat) on top of a horn mold made of metal, wood or resin, apply the above-mentioned unsaturated polyester resin mixture to the non-woven fabric with a brush to impregnate it, and use a rubber spatula or roller to impregnate it. Defoaming. On top of that, spread a non-woven fabric (mat) and repeat the same process to form a second layer.Furthermore, spread a woven fabric (roving cloth) on top of that, and then repeat the same process to form a multilayer. Laminate.

本実施例では、 SM−M−R−M−R−M−1’を一瓦−R−M−4(
−M−瓦ただし SM:サーフェースマット M:マット R:ロービングクロス の13層で構成し、各層のガラス繊維補強材としては、 サーフエースマット 2:11’/m’マット 450
f/m’ ロービングクロス 600r/m’ のものを用いた。
In this example, SM-M-R-M-R-M-1' is converted into one tile-R-M-4 (
-M- Roving cloth SM: Surface mat M: Mat R: Consisting of 13 layers of roving cloth, each layer's glass fiber reinforcement is Surf Ace Mat 2: 11'/m' Mat 450
f/m' roving cloth 600 r/m' was used.

また、ガラス繊維補強材と樹脂との重量比は、48:5
7であった。
In addition, the weight ratio of glass fiber reinforcement material and resin is 48:5.
It was 7.

以上のようにして製造されたスピーカー用ホーンは、高
弾性繊維補強材によって補強されたポリエ・ステル樹−
脂が多層に積層されているので、下表K 示スように、
ポリエステル樹脂製のものとほぼ同等の内部損失が得ら
れ、かつ、約3.3倍のヤ゛ング率が得られる。したが
って、本実施例によれば、ホーンの共振が樹脂製スピー
カー用ホーンと同程度に押えられるばか9でなく、ホー
ンの共振周波数が十分高い周波数へ移行するため、聴感
を害することがない。
The speaker horn manufactured as described above is made of polyester wood reinforced with high elastic fiber reinforcement.
Since the fat is laminated in multiple layers, as shown in Table K below,
The internal loss is almost the same as that made of polyester resin, and the Young's modulus is about 3.3 times higher. Therefore, according to this embodiment, the resonance of the horn is not suppressed to the same extent as that of a resin speaker horn, but the resonance frequency of the horn is shifted to a sufficiently high frequency, so that hearing sense is not impaired.

以上のように、本発明は高弾性繊維を補強材として熱硬
化性樹脂を所定形状に積層してなる構造であるので、内
部損失、ヤング率がともに太きい優れたスピーカー用ホ
ーンが実現できる利点を有する。
As described above, since the present invention has a structure in which thermosetting resin is laminated in a predetermined shape using high elastic fiber as a reinforcing material, it has the advantage that an excellent speaker horn with high internal loss and high Young's modulus can be realized. has.

特許 出 願人 オンキヨー株式会社 代理人 弁理士 佐 當 彌 太 部Patent applicant: Onkyo Corporation Agent: Patent Attorney Sato Yatabe

Claims (1)

【特許請求の範囲】[Claims] 高弾性繊維を補強材として熱硬化性樹脂を所定形状に積
層してなるスピーカー用ホーン。
A speaker horn made by laminating thermosetting resin into a predetermined shape using high elastic fiber as a reinforcing material.
JP11779983A 1983-06-28 1983-06-28 Horn for loudspeaker Pending JPS609297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11779983A JPS609297A (en) 1983-06-28 1983-06-28 Horn for loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11779983A JPS609297A (en) 1983-06-28 1983-06-28 Horn for loudspeaker

Publications (1)

Publication Number Publication Date
JPS609297A true JPS609297A (en) 1985-01-18

Family

ID=14720566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11779983A Pending JPS609297A (en) 1983-06-28 1983-06-28 Horn for loudspeaker

Country Status (1)

Country Link
JP (1) JPS609297A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622387A (en) * 1992-06-30 1994-01-28 Onkyo Corp Speaker phone

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136790A (en) * 1979-04-13 1980-10-24 Hitachi Ltd Horn for speaker
JPS56137792A (en) * 1980-03-31 1981-10-27 Pioneer Electronic Corp Speaker constitution body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136790A (en) * 1979-04-13 1980-10-24 Hitachi Ltd Horn for speaker
JPS56137792A (en) * 1980-03-31 1981-10-27 Pioneer Electronic Corp Speaker constitution body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622387A (en) * 1992-06-30 1994-01-28 Onkyo Corp Speaker phone

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