JPH028470Y2 - - Google Patents
Info
- Publication number
- JPH028470Y2 JPH028470Y2 JP1982051216U JP5121682U JPH028470Y2 JP H028470 Y2 JPH028470 Y2 JP H028470Y2 JP 1982051216 U JP1982051216 U JP 1982051216U JP 5121682 U JP5121682 U JP 5121682U JP H028470 Y2 JPH028470 Y2 JP H028470Y2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- thin film
- diaphragms
- polymer thin
- speaker
- 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
- Diaphragms For Electromechanical Transducers (AREA)
Description
【考案の詳細な説明】
本考案はスピーカ用振動板の改良に関するもの
で、音速が早く、剛性が高く、内部損失が大きい
振動板に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement of a diaphragm for a speaker, and relates to a diaphragm that has a high sound velocity, high rigidity, and a large internal loss.
従来、スピーカ用振動板はパルプ繊維を叩解抄
紙し、加熱成形して製造したものか、或いはアル
ミニウム、チタン等の薄い金属箔を成形したもの
である。金属箔を使用したものはパルプより作ら
れた振動板に比較し、ヤング率は大きいが、機械
的内部損失の小さい欠点がある。又パルプ繊維を
使用した振動板は機械的内部損失は良いが剛性が
不充分である欠点があつた。 Conventionally, speaker diaphragms have been manufactured by beating pulp fibers into paper and then heat-forming them, or molded from thin metal foils such as aluminum or titanium. Those using metal foil have a higher Young's modulus than diaphragms made from pulp, but have the disadvantage of low mechanical internal loss. Furthermore, diaphragms using pulp fibers have good mechanical internal loss but have the disadvantage of insufficient rigidity.
本考案は上記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
図に示すごとく、截頭円錐形パルプ繊維製振動板
１の音圧放射面に炭素繊維２を放射状に静電殖毛
し、この表面にポリオレフインポリマー薄膜３を
ヒートシール又はウエルダーして、炭素繊維２間
を埋設したスピーカ用振動板である。 The present invention was devised to eliminate the above-mentioned drawbacks, and if the embodiment shown in the drawings is explained, the first
As shown in the figure, carbon fibers 2 are electrostatically grown radially on the sound pressure emitting surface of the frustoconical pulp fiber diaphragm 1, and a polyolefin polymer thin film 3 is heat-sealed or welded on this surface. This is a speaker diaphragm that is buried between the two.
本考案は上記のような構造になつているので、
振動板の基本はパルプ繊維で構成されており、高
分子系合成樹脂製振動板又は金属製振動板等の独
得の音質にならず、振動板１の音圧放射面に殖毛
した炭素繊維２の比弾性率が高い為に音速又は高
域の良さが出る効果があり、表面をポリオレフイ
ンポリマー薄膜３で埋設することにより、耐水耐
候性が良い振動板を提供するものであり、工業上
有益な考案である。 Since the present invention has the structure described above,
The diaphragm is basically composed of pulp fibers, and it does not have the unique sound quality of polymer-based synthetic resin diaphragms or metal diaphragms. Because of its high specific elastic modulus, it has the effect of improving sound velocity and high frequency range, and by embedding the surface with a polyolefin polymer thin film 3, it provides a diaphragm with good water and weather resistance, making it an industrially useful material. It is an idea.
第１図は本考案振動板の断面図。
１はパルプ繊維、２は炭素繊維、３はポリオレ
フインポリマー薄膜。
FIG. 1 is a sectional view of the diaphragm of the present invention. 1 is pulp fiber, 2 is carbon fiber, and 3 is polyolefin polymer thin film.
Claims (1)
に炭素繊維２を放射状に静電殖毛し、炭素繊維２
間をポリオレフインポリマー薄膜３で埋設したス
ピーカ用振動板。 The carbon fibers 2 are electrostatically grown radially on the sound pressure radiation surface of the frustoconical pulp fiber diaphragm 1.
A speaker diaphragm with a polyolefin-in-polymer thin film 3 embedded between the gaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5121682U JPS58155195U (en) | 1982-04-07 | 1982-04-07 | Diaphragm for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5121682U JPS58155195U (en) | 1982-04-07 | 1982-04-07 | Diaphragm for speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58155195U JPS58155195U (en) | 1983-10-17 |
| JPH028470Y2 true JPH028470Y2 (en) | 1990-02-28 |
Family
ID=30061942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5121682U Granted JPS58155195U (en) | 1982-04-07 | 1982-04-07 | Diaphragm for speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58155195U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532319A (en) * | 1978-08-28 | 1980-03-07 | Yuasa Battery Co Ltd | Sodium-sulfur battery |
-
1982
- 1982-04-07 JP JP5121682U patent/JPS58155195U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58155195U (en) | 1983-10-17 |
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