JPS58139593A - Cabinet for acoustic device - Google Patents
Cabinet for acoustic deviceInfo
- Publication number
- JPS58139593A JPS58139593A JP2155782A JP2155782A JPS58139593A JP S58139593 A JPS58139593 A JP S58139593A JP 2155782 A JP2155782 A JP 2155782A JP 2155782 A JP2155782 A JP 2155782A JP S58139593 A JPS58139593 A JP S58139593A
- Authority
- JP
- Japan
- Prior art keywords
- cabinet
- crystalline cellulose
- fine powder
- polypropylene
- plate
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Abstract
Description
【発明の詳細な説明】
こび）発明け、たとλに丁スピーカーギヤビネット等の
Ｂ響板ＨＢＢ用ギヤヒネントの改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a gear hinge for a B soundboard HBB such as a speaker gear vignette.
スピーカー今ヤビネソトは第１図に示すようにスピーカ
ーケ取りつけるべき孔１ａ（ｚ有する前面板（ハソフル
板）１．２板の側８！２．天８！３．底板・１・、背面
＆ｉ５よりＩｔＴｆ成さｎた箱体である。The speaker now has holes 1a (z) to attach the speaker as shown in Figure 1. Front plate (haso full plate) 1. 2 side of the plate 8! 2. top 8! 3. bottom plate 1., back & i5. It is a box-like structure.
そして従来前記各板１ 、２ 、３ 、４ 、５け天然
木σ】ムク根か使わわていたか天然資源枯渇により極め
て高価である−・＞４１４の高級なスピーカーギヤビネ
ットにおいてσ〕ツノ、使用さｎでいた。Conventionally, each of the above-mentioned boards 1, 2, 3, 4, and 5 natural wood σ] horns were used in high-quality speaker gear vignettes of 414, which are extremely expensive due to depletion of natural resources. I was in San.
そこで、これに替って合板（ベニ）・）やバー −戸４
３島−ドか−ビーカーギ・ビネ・トＡ桟１．．Ｃｒ用さ
ね、でいる。Therefore, instead of this, plywood (beni) and bar-door 4
3 Islands - Doka - Bikagi Binet A Pier 1. ．． It's for Cr.
従来のこのような木質主体の４Ａ料は密度か小さく、又
ヤング率Ｉ＞も比較的小さいので遮音１ｌｈｌ性か良好
でない。Such conventional 4A material mainly composed of wood has a low density and a relatively small Young's modulus I>, so its sound insulation property is not good.
すなわち、中低ｊ″τ−の遮音特性ｔ」キャヒイソト（
４の面密度（密度×厚さ）に比例するの−（密用、か小
さい（９−ｏ５程１父）為良好でない。In other words, the sound insulation characteristic t'cahyisoto(
It is not good because it is proportional to the areal density (density x thickness) of 4.
又中高音の遮音相性はキャビネット桐の密度とヤング率
に比例すらか、前述のことく木質主体の材料は密度か小
さい十に又ヤング率くたかだか１０９ｄｙｎ／、ｔ
のオーダ程度でありやＶコり良好でない。Also, the sound insulation compatibility for mid-to-high frequencies is probably proportional to the density and Young's modulus of the cabinet paulownia.As mentioned above, wood-based materials have a lower density and a Young's modulus of at most 109 dyn/t.
The V stiffness is not good.
更に、木質主体の材料の共振鋭度Ｑか３３（１〜（ｉＣ
ｌと比較的高いのでスピーカーのフレーノ、ｊ：り伝達
さｎる振−１又にキャビネット内の空気の圧縮膨張［、
Ｊ：る振ＩＪｔｌＩπより、共振し−やす＜へ＾ｉ己）
目°ｊ特性か悪い点と車なりいわゆる箱鳴りの原因とｌ
っで、スピーカーからのざ゛に重畳し、１１！７４・１
県？ｒ−と［７＜ ’１！；す２）欠点ヶ有し゛でいた
。Furthermore, the resonance sharpness of the wood-based material is Q or 33 (1 to (iC
Since l is relatively high, the frequency of the speaker is transmitted, and the compression and expansion of the air inside the cabinet [,
J: From Rufu IJtlIπ, it resonates <he^i self)
Characteristics, bad points, and causes of so-called box noise in cars
Then, superimposed on the noise from the speaker, 11!74.1
prefecture? r- and [7<'1!;2) It had some flaws.
セの干、板ケ＼Ｊ法１ノノリした士、組立てる工程全必
曹とＬ１又各板の組合せ部分にＣ）ける空気漏ねケ防止
して密閉性％” ！’ｊｌめるＫは正確なるつき合せ項
や、多１）；の接着剤な心安とする等極めて煩現であっ
た。The drying of the board, J method 1, the entire assembling process, and the combination of L1 and each board, prevents air leakage and improves airtightness. It was extremely complicated, such as the need to make connections, and the number of things that needed to be done with the adhesive.
そこで、この発明てＩＴＩ熱＋’＋ｆ塑性樹脂又は熱硬
化性樹脂にチタン酸カリウムのｔｉｔ結晶結晶繊維入混
入桐料ケ成形１７斤ギ）・ビネットであり、以下実施例
に基ついて詳細に説明する。Therefore, the present invention is a molding process in which titanium crystal fibers of potassium titanate are mixed into an ITI heat+'+f plastic resin or thermosetting resin. do.
ポリプロピレン浴融液中ｆｆ２５ｗｔ９ＡＩ７）結晶質
セルローズ微粉末（平均粒径４（１μｍ）ケ混入攪拌し
て前記結晶質セルロース倣粉末か均一に分散せしめた後
、ベレット倉作製ｆる。Fine crystalline cellulose powder (average particle size 4 (1 μm)) was mixed into the polypropylene bath melt and stirred to uniformly disperse the crystalline cellulose imitation powder, and then a pellet cage was prepared.
そして、当該ベレット（１ｍ ）ＪＲ材料として、イン
ジエクンヨンモールドにより第２図に示す形状に成形す
る。Then, the pellet (1 m2) JR material was molded into the shape shown in FIG. 2 using an Injiekung Yong mold.
第２図において、２１は後面に開口２１ｂ’ｉ有スえ・
キャビネット、２］ａｉｊスピーカーケ取りつけるへキ
孔でありキャヒネノト成形時に同時に開けることかでき
る。２２に一１↑１記後而開「」ケ閉塞すべき後面板で
あり、望１しくに前記と同様（１）［−４°ｔで得らね
に材料ケ板状ｅＩｊｋ形したものがよい、。In FIG. 2, 21 has an opening 21b'i on the rear surface.
Cabinet, 2] A hole for attaching the Aij speaker, and can be opened at the same time as the cabinet is being molded. 22-1 ↑ 1 The rear plate to be closed is preferably a plate-like plate-like plate, similar to the above (1) [-4°t. good,.
こσ〕ようＫしてイ１）らｒまたスピーブｒ−キャビネ
ットは密度か１．１１で木質主体の相別の約２ （Ａ−
コあり、ヤング率１：口ｘ ｌ Ｌｌ １０ （Ｉｙｎ
、／ｃ、の値をイ（Ｉることかでき木質生体１７）桐利
よｌ’ｌ 、１けた上の値ケイ１することかできた。This σ] K and A1) are also spiver cabinets with a density of 1.11 and a wood-based composition of approximately 2 (A-
ko, Young's modulus 1: mouth x l Ll 10 (Iyn
, /c, could be changed to a value one digit higher than the value of 1.
又共振鋭度Ｑは１５程度であり、木質主体４Ａ別の最も
小さいもσ）より史げ半分に下りることができた。こｈ
ｔａホリフロビレンσ）内部ロス（ｔａｎ＆ ）か極め
て大きい事によるもσ）であると考えら７’ｌるり、た
かって、密度か大きいため面密１すか大きくなって中′
低音の遮音特性か向上し１又密反、ヤング率、特にヤン
グ率の増大か大きいので中茜ｊ、’ｒ、 ｐでＰける遮
音特性か者り、 ＜向−１ニする。In addition, the resonance sharpness Q was about 15, which was half of the lowest value for the wood-based 4A (σ). Hey
This is thought to be due to the fact that the internal loss (tan & ) is extremely large.
The sound insulation properties of low-pitched sounds are improved, and the Young's modulus, especially the Young's modulus, is increased so that the sound insulation properties can be increased by P in the middle.
父、共振鋭ｔ！ＬＱか極めて小さいσ）て、キャビネッ
ト板の共振か抑匍１さね、遮音時Ｐ１の向上と」（同作
用しいわゆる箱鳴りのレベルか小さくなって聴感への悪
影響ケ抑制゛ｆることが可能となった。Father, Resonance Sharp! (LQ or extremely small σ), the resonance of the cabinet board is suppressed, and P1 is improved during sound insulation. It has become possible.
史に、この発明のキャビネ・ノドはインジェクションＩ
Ｊｙ形によって後面鈑ゲ除く他の５面（前面板、２枚Ｉ
７）側面板、十面機及び底板）か一体に成形線
でき乙ので、従来のごとき煩庚な組立作朦ケ必要とせ寸
、かっ各板の一つき合せ部の空気漏ｔが全くない。Historically, the cabinet throat of this invention was Injection I.
Other 5 sides (front plate, 2 pieces I
7) Since the side plates, ten-sided plate, and bottom plate can be molded into one piece, there is no need for the tedious assembly process required in the past, and there is no air leakage at the joints of each plate.
更に１前記成形によってキャビネットの形状か自由ニ得
らｎるとともに、内面に補強用のリブ等ケ一体にかつ簡
単に成形することかできる。Furthermore, the above-mentioned molding allows freedom in the shape of the cabinet, and also allows reinforcing ribs and the like to be integrally molded on the inner surface.
又後面板に成形上別体匠ならさるケ得ない力で当該後面
板は同質材料よりなるものであってもよいし、又目的に
応じて他の祠料ゲ用いてもよい。Further, if the rear plate is shaped differently, the rear plate may be made of the same material, or other abrasive material may be used depending on the purpose.
そして当該後面板はビス、接着剤等従来の取付１段で固
定する。欠削面板（バックル板）も目的に応して別体の
月別よりなるものケ固定してもよい。The rear plate is then fixed using a conventional method such as screws or adhesive. Depending on the purpose, the notched face plate (buckle plate) may also be fixed as a separate piece.
又結晶質セルロース微粉末の配合割合はその割合か増大
するに一つむて密度、ヤング率か増大し、共振鋭度は小
さくなる傾向にあるσ）で、子ｌ）割会ケ選択すること
によって、目的に応じた所望の特性σ）キャビネットな
得ることができる。In addition, as the blending ratio of crystalline cellulose fine powder increases, the density and Young's modulus increase, and the resonance sharpness tends to decrease. , the desired characteristics σ) cabinet can be obtained depending on the purpose.
更に、前記実施例において熱可塑性樹脂としてホリプロ
ビレンゲ用いた例について述へたか、他πホリエチレン
、ポリプロピレン−ポリエチレン共重合体、ＡＢＳ樹脂
等の熱可塑性樹脂、エホキシ樹脂、ユリア樹脂等の熱硬
化性樹脂か適用でき又成形手段とＬ７ては実施例のイン
ジエクンーンモ、−ルドの他ｆｆ）ランスファーモール
）” 法−？ 、合ＦｊＭ樹脂ベレットと結晶質セルロ
ース微粉末ケ混合して加熱金型による、いわゆる圧縮成
形等か利用できる。Furthermore, in the above examples, the example in which horipropylene was used as the thermoplastic resin was described, but other thermoplastic resins such as π polyethylene, polypropylene-polyethylene copolymer, ABS resin, etc., thermosetting resins such as epoxy resin, urea resin, etc. In addition to the molding method, the FjM resin pellet and crystalline cellulose fine powder are mixed and heated. It is possible to use so-called compression molding using a mold.
以上に説明したごとく、この発明は結晶質セルローズ微
粉末ケ混入し、た合成樹脂よりなるキャビネットであり
、従来の木質主体のキャビネッｌ−ｆｆ比較１．て遮音
特性の向上、共振の抑制により箱鳴りの抑制効果Ｔｈ署
なるもσ）であり、ψに作製下；しσ）極めて簡便であ
るσｌで均一なキャビネットが入拓匠刀・つ簡単に４＃
らねコスト減少げ寄与する等実１１１＋惨めで有効なも
のＣある。As explained above, the present invention is a cabinet made of synthetic resin mixed with fine crystalline cellulose powder, and compared with the conventional wood-based cabinet L-FF. The improvement of sound insulation properties and the suppression of resonance will result in the suppression of box noise. 4#
There are 111 + miserable and effective things C that contribute to the reduction of costs.
４．１シ１而σ）筒中々故旧
第１１ン１釦従来σ）′＼・）ビネットの一部截断斜視
図第２（躍に１″こび）発明のギへ・ヒイ、ノドの一部
截断斜視図１である。4.1 し 1 σ) Old 11th button 1 button in the cylinder σ)'\・) Partial cutaway perspective view of the vignette 2nd (jumping 1 inch) Part of the throat of the invention FIG. 1 is a cutaway perspective view.
Claims (2)
形［７て斥るｉｏｆ−響機Ｒ：÷１１１キャビネット。(1) Synthetic resin molded with crystalline cellulose fine powder mixed [7 to 111 cabinet.
する特許ｔｆＩ求の範囲第１項記載の音響機器用キート
ビネット。(2) Characteristics of being made of synthetic resin or polypropylene
A keyto vignette for audio equipment as described in item 1 of the patent tfI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2155782A JPS58139593A (en) | 1982-02-13 | 1982-02-13 | Cabinet for acoustic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2155782A JPS58139593A (en) | 1982-02-13 | 1982-02-13 | Cabinet for acoustic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58139593A true JPS58139593A (en) | 1983-08-18 |
| JPH0134440B2 JPH0134440B2 (en) | 1989-07-19 |
Family
ID=12058304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2155782A Granted JPS58139593A (en) | 1982-02-13 | 1982-02-13 | Cabinet for acoustic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58139593A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056618A (en) * | 1989-02-02 | 1991-10-15 | Prodan Hans Joachim | Loudspeaker housing |
| JPWO2019088140A1 (en) * | 2017-10-31 | 2020-09-24 | 古河電気工業株式会社 | Molding |
| US11746215B2 (en) | 2017-09-29 | 2023-09-05 | Furukawa Electric Co., Ltd. | Molded article |
-
1982
- 1982-02-13 JP JP2155782A patent/JPS58139593A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056618A (en) * | 1989-02-02 | 1991-10-15 | Prodan Hans Joachim | Loudspeaker housing |
| US11746215B2 (en) | 2017-09-29 | 2023-09-05 | Furukawa Electric Co., Ltd. | Molded article |
| JPWO2019088140A1 (en) * | 2017-10-31 | 2020-09-24 | 古河電気工業株式会社 | Molding |
| US11891498B2 (en) | 2017-10-31 | 2024-02-06 | Furukawa Electric Co., Ltd. | Molded article provided with a resin part |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0134440B2 (en) | 1989-07-19 |
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