JPS5923203Y2 - head shell - Google Patents
head shellInfo
- Publication number
- JPS5923203Y2 JPS5923203Y2 JP12936378U JP12936378U JPS5923203Y2 JP S5923203 Y2 JPS5923203 Y2 JP S5923203Y2 JP 12936378 U JP12936378 U JP 12936378U JP 12936378 U JP12936378 U JP 12936378U JP S5923203 Y2 JPS5923203 Y2 JP S5923203Y2
- Authority
- JP
- Japan
- Prior art keywords
- head shell
- coating layer
- present
- coating
- damping material
- 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
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
本考案は振動を抑制したピックアップのヘッドシェルに
関するものである。[Detailed Description of the Invention] The present invention relates to a pickup head shell that suppresses vibration.
従来、ヘッドシェルの材質として、アルミニュウム等の
軽金属やプラスチック等の合成樹脂材料が使われて来た
が、ヘッドシェル本体の振動によって生ずる鳴きは音質
を悪くするものである。Conventionally, light metals such as aluminum and synthetic resin materials such as plastic have been used as materials for head shells, but the noise caused by vibration of the head shell body deteriorates the sound quality.
従って無共振へラドシェルが望まれるものであるが実際
には不可能に近いものである。Therefore, although a resonance-free Radshell is desired, it is almost impossible in reality.
その為にヘッドシェル本体の裏面や表面にゴムシートを
貼着したり、合成樹脂を塗布して振動を抑制していた。To this end, vibrations were suppressed by pasting rubber sheets or coating synthetic resin on the back and surface of the head shell body.
しかしながらこれでは不十分であり、制振材として損失
係数が０．１近くになるものはながった。However, this was insufficient, and materials with loss coefficients close to 0.1 were no longer used as damping materials.
従って現在までヘッドシェル本体の鳴きを十分に抑えら
れないと云う欠点があった。Therefore, until now, there has been a drawback that the noise of the head shell body cannot be sufficiently suppressed.
本考案は上記の欠点を取除く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、第２図に
示すごとく、ヘッドシェル３の裏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塗膜層１を形成
し、乾燥させた後、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せるヘッドシェルである。The present invention was devised to eliminate the above-mentioned drawbacks, and to explain the embodiment shown in the drawings, as shown in Figs. 1 and 2, the loss of polyurethane resin etc. After coating a coating with a large coefficient to form coating layer 1 and drying it, a coating with a high Young's modulus such as unsaturated polyester resin is applied on the top surface and cured to form coating layer 2. This is a head shell that can be formed by laminating layers.
本考案の制振材と従来のゴムシート制振材の損失係数の
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 vibration damping material of the present invention and the conventional rubber sheet vibration 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２０°Ｃ１湿度６２％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 an aluminum plate test piece, and the vibration damping rate, ie, loss coefficient, was measured at a temperature of 20° C. and a humidity of 62%.
８０Ｈ２に於て ５００ Ｈｚに於て
ゴムシート ０．００４９ ０．００４９エ
ポキシ系樹脂 ０．０１２ ０．０１０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他の制振材と比較し
て格別に顕著である。At 80H2 At 500 Hz Rubber sheet 0.0049 0.0049 Epoxy resin 0.012 0.010 Laminated coating of the present invention 0.064 0.09 Formation of the laminated coating of the present invention as seen in the table above Then the loss coefficient is 0.1
The effect as a damping material is particularly remarkable compared to other damping materials.
第３図はゴムシートを制振材に使用した場合、第４図は
エポキシ系樹脂を制振材に使用した場合、第５図は本考
案積層被膜を制振材に使用した場合の各振動特性図で、
第５図では第３図、第４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 each vibration when a rubber sheet is used as a damping material, Figure 4 shows a case where an epoxy resin is used as a damping material, and Figure 5 shows vibrations when the laminated film of the present invention is used as a damping material. In the characteristic diagram,
In FIG. 5, the frequency characteristics are less sharp than those in FIGS. 3 and 4.
実施例ではへラドシェル３の裏面に積層被膜を塗布して
いるが、表面又は両面に塗布してもよい。In the embodiment, the laminated film is applied to the back side of the herad shell 3, but it may be applied to the front or both sides.
本考案は以上に述べたように、ピックアップのヘッドシ
ェル裏面に損失係数大なる塗膜層１と、その上面にヤン
グ率の高い塗膜層２の積層被膜を形成すると云う巧妙な
構造で振動を抑制するもので、実用効果大なる考案であ
る。As mentioned above, the present invention uses an ingenious structure to form a laminated film of a coating layer 1 with a large loss coefficient on the back surface of the head shell of the pickup and a coating layer 2 with a high Young's modulus on the top surface. This is a device with great practical effects.
第１図は本考案のへラドシェル外観図、第２図は要部断
面図、第３図、第４図、第５図は振動特性図。
１．２は塗膜層、３はへラドシェル。Fig. 1 is an external view of the herad shell of the present invention, Fig. 2 is a sectional view of the main part, and Figs. 3, 4, and 5 are vibration characteristic diagrams. 1.2 is the coating layer, 3 is the herad shell.
Claims (1)
塗膜層１を形成し、その上面に不飽和ボッエステル系樹
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
た事を特徴とするヘッドシェル。It is characterized by forming a coating layer 1 with a high loss coefficient such as a polyurethane resin on both sides or one side, and laminating a coating layer 2 with a high Young's modulus such as an unsaturated Bossester resin on the upper surface. head shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12936378U JPS5923203Y2 (en) | 1978-09-19 | 1978-09-19 | head shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12936378U JPS5923203Y2 (en) | 1978-09-19 | 1978-09-19 | head shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5549315U JPS5549315U (en) | 1980-03-31 |
| JPS5923203Y2 true JPS5923203Y2 (en) | 1984-07-11 |
Family
ID=29093944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12936378U Expired JPS5923203Y2 (en) | 1978-09-19 | 1978-09-19 | head shell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923203Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004048085A1 (en) * | 2002-11-25 | 2004-06-10 | Three Bond Co., Ltd. | Laminated structural body |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01161459U (en) * | 1988-04-30 | 1989-11-09 |
-
1978
- 1978-09-19 JP JP12936378U patent/JPS5923203Y2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004048085A1 (en) * | 2002-11-25 | 2004-06-10 | Three Bond Co., Ltd. | Laminated structural body |
| US7425370B2 (en) | 2002-11-25 | 2008-09-16 | Three Bond Co., Ltd. | Laminated structural body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5549315U (en) | 1980-03-31 |
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