JPS6047597A - Speaker - Google Patents
SpeakerInfo
- Publication number
- JPS6047597A JPS6047597A JP15499183A JP15499183A JPS6047597A JP S6047597 A JPS6047597 A JP S6047597A JP 15499183 A JP15499183 A JP 15499183A JP 15499183 A JP15499183 A JP 15499183A JP S6047597 A JPS6047597 A JP S6047597A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- edge
- speaker
- cone
- edge ring
- 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
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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
【発明の詳細な説明】
（利用分野）
本発明は均一性および信頼性に優れた性能の良い振動板
をもつスピーカに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to a speaker having a high-performance diaphragm with excellent uniformity and reliability.
（背 景）
第１図は従来のスピーカの振動板を示す。図示されてい
るように、従来の振動板４は、コーン部１とエツジ部２
およびエツジ部２とエツジリング部３はそれぞれ接着剤
で接着されている。このように、各々を接着剤で接着す
ると、それぞれに対して最適な材料を選べるという利点
がある。(Background) Figure 1 shows the diaphragm of a conventional speaker. As shown in the figure, the conventional diaphragm 4 has a cone portion 1 and an edge portion 2.
The edge portion 2 and edge ring portion 3 are each bonded with an adhesive. In this way, when each is bonded with an adhesive, there is an advantage that the optimal material can be selected for each.
しかし、このような構成のスピーカは、環境、接着剤お
よび作業のばらつきによυ均一性、信頼性に欠けると共
に、材料の異なる境界で、振動伝播の反射が起り、共振
等の特性を劣化させるという欠点があった。However, speakers with this type of configuration lack uniformity and reliability due to variations in the environment, adhesives, and work, and reflections of vibration propagation occur at the boundaries of different materials, degrading characteristics such as resonance. There was a drawback.
（目 的）
本発明の目的は、前記した従来技術の欠点を除去し、振
動伝播の反射が起らず、均一性、信頼性に優れた性能の
良い振動板をもつスピーカを提供することにある。(Objective) The object of the present invention is to eliminate the drawbacks of the prior art described above, and to provide a speaker having a high-performance diaphragm that does not cause reflection of vibration propagation and is excellent in uniformity and reliability. be.
（概 要）
本発明の特徴は、コーン部、エツジ部およびエツジリン
グ部をプラスチックを用いて一体成形によって作ること
によシ、振動板の接着部分を減らした点にある。(Overview) A feature of the present invention is that the cone portion, edge portion, and edge ring portion are integrally molded from plastic, thereby reducing the adhesive portion of the diaphragm.
（実施例）
第２図は本発明の一実施例のスピーカの振動板４を示す
。コーン５の厚みは外周部へ行くに従い徐々に薄くなり
、波形のエツジ部６へなめらかにつながる。さらに徐々
に厚くなシ、エツジリング部７につながっている。これ
らの各々は一体に形成されており、どこにも接続個所は
ない。(Embodiment) FIG. 2 shows a speaker diaphragm 4 according to an embodiment of the present invention. The thickness of the cone 5 gradually becomes thinner toward the outer periphery, and smoothly connects to the corrugated edge portion 6. Furthermore, it is connected to an edge ring part 7 which gradually becomes thicker. Each of these is integrally formed and has no connection points anywhere.
このような形状の振動板を作る材料としては、発泡プラ
スチック、又はポリプロピレン等のオレフィン系樹脂が
適当である。As a material for making a diaphragm having such a shape, foamed plastic or olefin resin such as polypropylene is suitable.
発泡プラスチックを用いると、軽くて、高剛性の振動板
を作ることができる。発泡プラスチックを用いた場合の
問題点は、エツジ部を構成するために、この部分の発泡
プラスチックを薄くすると、強度が７４％さくなる点で
おる。しかし、これは、エツジ部の発泡プラスチックの
密度を大きくすることで解決が可能になる。By using foamed plastic, it is possible to make a lightweight and highly rigid diaphragm. The problem with using foamed plastic is that if the foamed plastic in this area is made thinner to form the edge portion, the strength will be reduced by 74%. However, this problem can be solved by increasing the density of the foamed plastic at the edges.
また、ポリプロピレン等を用いて作った場合は、この材
料は内部損失が大きく共振のピークが極めて低いので、
良好な振動板あるいはエツジを作ることができる。In addition, when made using polypropylene, etc., this material has a large internal loss and an extremely low resonance peak.
A good diaphragm or edge can be made.
次に発泡プラスチックを用いてスピーカの振動板を作る
方法について説明する。Next, we will explain how to make a speaker diaphragm using foamed plastic.
先ず、金製の上下の間隔を少し大きくしておいて、発泡
グラスチックを射出し、全体に少し厚めの振動板を作る
ようにする。材料が金型の末端まで届いた後、該金型を
プレスし、振動板が所定の厚みになるようにする。この
ようにすれば、エツジ部６の発泡プラスチックの密度が
犬きくなシ、この部分の強度を大きくすることができる
。First, I made the gap between the top and bottom of the metal parts a little larger, and then injected foamed plastic to create a slightly thicker diaphragm overall. After the material reaches the end of the mold, the mold is pressed so that the diaphragm has a predetermined thickness. In this way, the density of the foamed plastic in the edge portion 6 is increased, and the strength of this portion can be increased.
一方、ポリプロピレンのような流動性の良いグラスチッ
ク樹脂を用いて作る場合には、プラスチック樹脂を加熱
して流動性を良くシ、射出一体成形を行なえばよい。On the other hand, if a plastic resin with good fluidity such as polypropylene is used, the plastic resin may be heated to improve the fluidity and integral injection molding may be performed.
上記した実施例の一変形例として、第２図に示されてい
るスピーカのエツジ部６に、円周方向のひだを付ければ
、大振幅時の直線性を改善することができる。As a modification of the above-described embodiment, if the edge portion 6 of the speaker shown in FIG. 2 is provided with circumferential pleats, the linearity during large amplitudes can be improved.
（効 果）
本発明によれば、一体成形をすることによシ均一で信頼
性の高い量産性に富んだ振動板を、またコーン、エツジ
、エツジリング各部をなめらかにつなぐことによシ、反
射のない、性能のすぐれたスピーカを得ることができる
。(Effects) According to the present invention, by integrally molding the diaphragm, a diaphragm that is uniform, highly reliable, and highly suitable for mass production is produced, and by smoothly connecting each part of the cone, edge, and edge ring, the diaphragm is made of a single piece. You can get a speaker with excellent performance without any noise.
また、該振動板を発泡プラスチックで作ることによシ、
軽量高剛性の振動板をもつスピーカを容易に作ることが
できる。さらに、振動板が軽量になると、スピーカの能
率が上るという効果もある。In addition, by making the diaphragm from plastic foam,
A speaker with a lightweight and highly rigid diaphragm can be easily produced. Furthermore, a lighter diaphragm has the effect of increasing the efficiency of the speaker.
第１図は従来のスピーカの振動板の断面図、第２図は本
発明の一実施例の振動板を示す断面図である。
１．５・・・コーン部、２．６・・・エツジ部、３．７
・・・エツジリング部、４・・・振動板代理人弁理士
平 木 道 人FIG. 1 is a sectional view of a diaphragm of a conventional speaker, and FIG. 2 is a sectional view of a diaphragm of an embodiment of the present invention. 1.5... Cone part, 2.6... Edge part, 3.7
...Etsu Ring Department, 4...Diaphragm representative patent attorney
Michihito Hiraki
Claims (4)
振動板を有するスピーカにおいて、該コーン部、エツジ
部およびエツジリング部をプラスチックを用いて一体成
形したことを特徴とするスピーカ。(1) A speaker having a diaphragm consisting of a cone part, an edge part, and an edge ring part, characterized in that the cone part, the edge part, and the edge ring part are integrally molded using plastic.
従い閾々に薄くなυ、そのままなめらかにエツジ部とつ
なが如、さらに徐々に厚くなりエツジリング部になるよ
うにしたことを特徴とする特許許請求の範囲第１項記載
のスピーカ。(2) The shape of the diaphragm is such that it becomes thinner and thinner as it goes toward the periphery of the cone portion, smoothly connects to the edge portion, and then gradually thickens to form an edge ring portion. A speaker according to claim 1.
ていることを特徴とする前記特許請求の範囲第１項又は
第２項記載のスピーカ。(3) The speaker according to claim 1 or 2, wherein the diaphragm is made of foamed plastic.
たことを特徴とする前記特許請求の範囲第３項目己載の
スピーカ。(4) The speaker according to claim 3, characterized in that the density of the edge portion is increased to increase strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15499183A JPS6047597A (en) | 1983-08-26 | 1983-08-26 | Speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15499183A JPS6047597A (en) | 1983-08-26 | 1983-08-26 | Speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6047597A true JPS6047597A (en) | 1985-03-14 |
Family
ID=15596323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15499183A Pending JPS6047597A (en) | 1983-08-26 | 1983-08-26 | Speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047597A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10303247A1 (en) * | 2003-01-28 | 2004-08-12 | Harman/Becker Automotive Systems Gmbh (Straubing Division) | Loudspeaker membrane e.g. for conical loudspeaker, has non-uniform material and thickness of membrane to influence frequency characteristic of loudspeaker |
| DE10303244B3 (en) * | 2003-01-28 | 2004-08-26 | Harman/Becker Automotive Systems Gmbh (Straubing Division) | Loudspeaker for sound reproduction system, has conical membrane of three-layer construction held in frame at edge and coil wound round cylinder extending from central aperture |
| US8215445B2 (en) * | 2006-12-08 | 2012-07-10 | Sennheiser Electronic Gmbh & Co. Kg | Electroacoustic transducer |
| US8532327B2 (en) | 2010-12-08 | 2013-09-10 | Panasonic Corporation | Diaphragm and speaker device provided with the same |
-
1983
- 1983-08-26 JP JP15499183A patent/JPS6047597A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10303247A1 (en) * | 2003-01-28 | 2004-08-12 | Harman/Becker Automotive Systems Gmbh (Straubing Division) | Loudspeaker membrane e.g. for conical loudspeaker, has non-uniform material and thickness of membrane to influence frequency characteristic of loudspeaker |
| DE10303244B3 (en) * | 2003-01-28 | 2004-08-26 | Harman/Becker Automotive Systems Gmbh (Straubing Division) | Loudspeaker for sound reproduction system, has conical membrane of three-layer construction held in frame at edge and coil wound round cylinder extending from central aperture |
| DE10303247B4 (en) * | 2003-01-28 | 2006-11-16 | Harman Becker Automotive Systems Gmbh | Cone-shaped diaphragm and speakers |
| US8215445B2 (en) * | 2006-12-08 | 2012-07-10 | Sennheiser Electronic Gmbh & Co. Kg | Electroacoustic transducer |
| US8532327B2 (en) | 2010-12-08 | 2013-09-10 | Panasonic Corporation | Diaphragm and speaker device provided with the same |
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