JPS581033Y2 - horn speaker - Google Patents
horn speakerInfo
- Publication number
- JPS581033Y2 JPS581033Y2 JP12662478U JP12662478U JPS581033Y2 JP S581033 Y2 JPS581033 Y2 JP S581033Y2 JP 12662478 U JP12662478 U JP 12662478U JP 12662478 U JP12662478 U JP 12662478U JP S581033 Y2 JPS581033 Y2 JP S581033Y2
- Authority
- JP
- Japan
- Prior art keywords
- horn
- coating layer
- vibration
- horn speaker
- 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.)
- Expired
Links
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】
本考案はホーンの振動を抑制したホーンスピーカーに関
するものである。[Detailed Description of the Invention] The present invention relates to a horn speaker that suppresses horn vibration.
一般に、ホーン型スピーカーに於ては、ホーン各取付部
にねじ締めつげ弛みがあってはならないと共にホーンが
振動してはならないことによっている。In general, in a horn type speaker, there must be no looseness in the screws at each horn attachment part, and the horn must not vibrate.
この為にホーンの外周表面に未加流ブチルゴムシート等
を貼着してホーンの振動を制御している。For this purpose, an uncured butyl rubber sheet or the like is attached to the outer peripheral surface of the horn to control the vibration of the horn.
又振動の生じやすい部分例えばマルチセルラーホーンの
場合開口部のセクターの表面に未加流７”チルゴムシー
ト等を貼着してホーンの振動をｆｆ５！Ｉ＃している。In addition, in the case of a multi-cellular horn, for example, in the case of a multi-cellular horn, an uncured 7" chill rubber sheet or the like is attached to the surface of a part where vibration is likely to occur, so that the vibration of the horn is reduced to ff5!I#.
これらの場合ある程度効果を上げているが、制振材とし
ての効果が不十分で、ホーンの鳴きを十分に抑えられな
いと云う欠点があった。In these cases, although they have been effective to some extent, they have the disadvantage that they are not sufficiently effective as vibration damping materials and cannot sufficiently suppress the sound of the horn.
本考案は上記欠点を除去する為に考案されたもので、図
面に示す実施例について説明すれば、第１図に示すごと
く、扇形ホーン３の振動の生じ易い外周表面にポリウレ
タン系樹脂等の、損失係数が大きい塗料を塗布して乾燥
させ、塗膜層１を形成し、その上面に不飽和ポリエステ
ル系樹脂等のヤング率の高い塗料を塗布して硬化させ、
塗膜層２の被膜を積層して形成したホーンスピーカーで
ある。The present invention was devised to eliminate the above-mentioned drawbacks, and to explain the embodiment shown in the drawings, as shown in FIG. A paint with a high loss coefficient is applied and dried to form a coating layer 1, and a paint with a high Young's modulus such as an unsaturated polyester resin is applied on the top surface and cured.
This is a horn speaker formed by laminating coatings of coating layer 2.
第２図はその要部断面図でホーン３の上面に塗膜層１そ
の上面に塗膜層２の積層被膜が形成されている。FIG. 2 is a sectional view of a main part thereof, and a laminated film of a coating layer 1 is formed on the upper surface of the horn 3, and a coating layer 2 is formed on the upper surface thereof.
本考案の制振材と従来の割振材の損失係数の測定結果を
下記の表に示すものである。The measurement results of the loss coefficients of the damping material of the present invention and the conventional damping material are shown in the table below.
アルミニウム板のテストピースに各制振材を塗布し、温
度２００Ｃ１湿度６２多で振動減衰率即ち損失係数を測
定したものである。Each vibration damping material was applied to a test piece of an aluminum plate, and the vibration damping rate, that is, the loss coefficient, was measured at a temperature of 200C and a humidity of 62C.
８０ Ｈｚに於て ５００Ｈｚに於て
ブチルゴムシート
０．００５４
０．００５７
本考案積層被膜
０．０６４
０．０９
上記の表に見られるように本考案積層被膜を形成すると
、損失係数が０．１近くになり、制振材としての効果が
従来の制振材と比較して格別に顕著である。At 80 Hz At 500 Hz Butyl rubber sheet 0.0054 0.0057 Laminated coating of the present invention 0.064 0.09 As seen in the table above, when the laminated coating of the present invention is formed, the loss factor is close to 0.1. The effect as a vibration damping material is particularly remarkable compared to conventional vibration damping materials.
第３図はブチルゴムシートをＴｊ１８材に使用した場合
、第４図は本考案積層被膜な制振材に使用した場合の各
振動特性図で、第４図では第３図に比較して周波数特性
に於て鋭度の小さいものとなっている。Figure 3 shows the vibration characteristics when the butyl rubber sheet is used as a Tj18 material, and Figure 4 shows the vibration characteristics when it is used in the vibration damping material of the present invention. Figure 4 shows the frequency characteristics compared to Figure 3. The sharpness is small in .
実施例ではホーン３の外周表面に積層皮膜を形おしてい
るが、ホーン３の形状その他の理由により、第５図に示
すごとく、ホーン３内のセクター４が振動することがあ
る。In the embodiment, a laminated film is formed on the outer peripheral surface of the horn 3, but due to the shape of the horn 3 or other reasons, the sector 4 within the horn 3 may vibrate as shown in FIG.
この場合にセクター４の表面に積層皮膜を形成すると制
振効果が生ずる。In this case, forming a laminated film on the surface of the sector 4 produces a vibration damping effect.
本考案は以上に述べたように、ホーン３の外周表面に損
失係数大なる塗膜層と、その上面にヤング率の高い塗膜
層の積層被膜を形成すると云う巧妙な方法で振動を抑制
するもので、実用効果大なる考案である。As described above, the present invention suppresses vibration using a clever method of forming a laminated film of a coating layer with a large loss coefficient on the outer peripheral surface of the horn 3 and a coating layer with a high Young's modulus on the upper surface thereof. This is an idea with great practical effects.
第１図は扇形ホーンの外観図、第２図は要部断面図、第
３図、第４図は振動特性図、第５図はホ−ンの開口部外
観図。
１
．２は塗膜層、
３はホーン、
４はセクター。FIG. 1 is an external view of the fan-shaped horn, FIG. 2 is a sectional view of the main part, FIGS. 3 and 4 are vibration characteristics diagrams, and FIG. 5 is an external view of the opening of the horn. 1. 2 is the coating layer, 3 is the horn, and 4 is the sector.
Claims (1)
大なる塗膜層１を形成し、その上面に不飽和ポリエステ
ル系樹脂等のヤング率の高い塗膜層２の被膜を積層して
形成した事を特徴とするホーンスピーカー。A coating layer 1 having a high loss coefficient such as a polyurethane resin is formed on the outer peripheral surface of the horn 3, and a coating layer 2 having a high Young's modulus such as an unsaturated polyester resin is laminated on the upper surface thereof. A horn speaker featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12662478U JPS581033Y2 (en) | 1978-09-13 | 1978-09-13 | horn speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12662478U JPS581033Y2 (en) | 1978-09-13 | 1978-09-13 | horn speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5542500U JPS5542500U (en) | 1980-03-19 |
| JPS581033Y2 true JPS581033Y2 (en) | 1983-01-08 |
Family
ID=29088631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12662478U Expired JPS581033Y2 (en) | 1978-09-13 | 1978-09-13 | horn speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581033Y2 (en) |
-
1978
- 1978-09-13 JP JP12662478U patent/JPS581033Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5542500U (en) | 1980-03-19 |
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