JPS6327519Y2 - - Google Patents
Info
- Publication number
- JPS6327519Y2 JPS6327519Y2 JP1981188841U JP18884181U JPS6327519Y2 JP S6327519 Y2 JPS6327519 Y2 JP S6327519Y2 JP 1981188841 U JP1981188841 U JP 1981188841U JP 18884181 U JP18884181 U JP 18884181U JP S6327519 Y2 JPS6327519 Y2 JP S6327519Y2
- Authority
- JP
- Japan
- Prior art keywords
- section
- speaker
- central
- vibrating
- vibrating part
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000007666 vacuum forming Methods 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Description
【考案の詳細な説明】
本考案は、スピーカの振動板に関するもので、
特に製造が簡単で特性的に優れたスピーカ振動板
を提供せんとするものである。[Detailed description of the invention] This invention relates to a speaker diaphragm.
In particular, it is an object of the present invention to provide a speaker diaphragm that is easy to manufacture and has excellent characteristics.
従来一般に、スピーカ振動板は紙製のものが多
用されている。この様な紙製のスピーカ振動板
は、永年にわたつて使用されているので特性的に
安定しており、製造技術も確立しているという利
点を有する反面、叩解された紙繊維を抄上げ成型
して製造する為、良質の振動板を作る為には、多
大の労力と経験を必要とするものであり、かつ格
別のエツジ部を取付けなければならなかつた。ま
た、製造を容易に行い得るという理由で、紙の代
わりに合成樹脂製のフイルムやシートを真空成型
することにより作成されたスピーカ振動板も従来
から提案されている。これは、第１図イ及びロに
示す如きものであり、合成樹脂製のシートもしく
はフイルムを真空成型することにより、半球状の
振動部１と該振動部１をドーナツ状に取巻くエツ
ジ部２を一体に成型したものである。この様な合
成樹脂製のスピーカ振動板は、容易に製造出来、
大量生産に適するものであるという利点を有する
反面、中心から外周に到る寸法及び曲率が均一で
ある為、全体が同一の共振を生じ、再生帯域の中
域部に大きなピーク及びデイツプが生じ特性的に
好ましいものでなかつた。その為、従来の合成樹
脂製のスピーカ振動板は、小口径でかつ帯域の限
られたもの、例えばツイータ用の振動板にしか利
用することが出来なかつた。 Conventionally, speaker diaphragms are often made of paper. This kind of paper speaker diaphragm has the advantage of having stable characteristics because it has been used for many years, and the manufacturing technology has been established. In order to manufacture a high-quality diaphragm, a great deal of labor and experience was required, and special edges had to be attached. Furthermore, speaker diaphragms made by vacuum forming synthetic resin films or sheets instead of paper have also been proposed because they are easier to manufacture. This is as shown in Fig. 1 A and B, and by vacuum forming a synthetic resin sheet or film, a hemispherical vibrating part 1 and an edge part 2 surrounding the vibrating part 1 in a donut shape are formed. It is molded in one piece. This kind of synthetic resin speaker diaphragm can be easily manufactured.
Although it has the advantage of being suitable for mass production, since the dimensions and curvature from the center to the outer periphery are uniform, the entire area produces the same resonance, resulting in large peaks and dips in the mid-range of the playback band. It was not a desirable result. Therefore, conventional speaker diaphragms made of synthetic resin can only be used as diaphragms for small diameters and limited bands, such as tweeter diaphragms.
本考案は、上述の点に鑑み成されたもので、以
下実施例に基き図面を参照しながら説明する。第
２図は、本考案の一実施例を示すもので、円形で
半球状の中央振動部３、及び該中央振動部３と一
体であり、周縁が角形である補助振動部４から成
るスピーカ振動板５と、該スピーカ振動板５が取
付けられる角形のフレーム６とが示されている。
第３図は、第２図に示されるスピーカ振動板５の
形状をより明確に示すとともに、スピーカに組込
む場合の一例を示す為の断面図で、振動板５は、
半球状の中央振動部３と、断面が円弧状で周縁が
フレーム６に取付固定された補助振動部４とを備
え、前記中央振動部３と前記補助振動部４との交
わる部分の裏側に、ボイスコイル７が巻回された
ボビン８が連結されている。その為、磁気回路９
の作用によつてボイスコイル７が駆動され、振動
部５が振動する。 The present invention has been developed in view of the above points, and will be described below based on embodiments with reference to the drawings. FIG. 2 shows an embodiment of the present invention, which is a speaker vibrating device consisting of a circular and hemispherical central vibrating section 3, and an auxiliary vibrating section 4 that is integral with the central vibrating section 3 and has a rectangular peripheral edge. A plate 5 and a rectangular frame 6 to which the speaker diaphragm 5 is attached are shown.
FIG. 3 is a cross-sectional view to more clearly show the shape of the speaker diaphragm 5 shown in FIG. 2, and to show an example of when it is incorporated into a speaker.
It comprises a hemispherical central vibrating part 3 and an auxiliary vibrating part 4 having an arcuate cross section and a peripheral edge fixed to the frame 6, and on the back side of the intersection of the central vibrating part 3 and the auxiliary vibrating part 4, A bobbin 8 around which a voice coil 7 is wound is connected. Therefore, the magnetic circuit 9
The voice coil 7 is driven by this action, and the vibrating section 5 vibrates.
本考案に係るスピーカ振動板は、マイラーフイ
ルムやポリプロピレンシートを所定の型を用いて
真空成型することにより形成される。熱を加えた
前記マイラーフイルムもしくはポリプロピレンシ
ートを型上に配置し真空成型を行うと、型により
熱が吸収されて冷却され所定の形状となる。そし
て所定の形状を有するスピーカ振動板にフレーム
とボビンを連結し、磁気回路の所定位置にボイス
コイルを配置すれば、スピーカが完成する。 The speaker diaphragm according to the present invention is formed by vacuum forming a Mylar film or a polypropylene sheet using a predetermined mold. When the heated Mylar film or polypropylene sheet is placed on a mold and vacuum formed, the mold absorbs the heat and cools it down to a predetermined shape. Then, the frame and bobbin are connected to a speaker diaphragm having a predetermined shape, and the voice coil is placed at a predetermined position in the magnetic circuit to complete the speaker.
しかして、本考案に依れば、所定の形状を有す
る振動板が簡単に作成出来るという利点を有す
る。 Therefore, the present invention has the advantage that a diaphragm having a predetermined shape can be easily produced.
また、本考案に係るスピーカ振動板は、中央振
動部３を円形にすると共に補助振動部４を角形に
しているので、前記中央振動部３の周縁から前記
補助振動部４の周縁までの距離が、あるいは該補
助振動部４の曲率が場所により異なる。その為、
分割振動が特定周波数に集中することを防止する
とことが出来、全体としフラツトな周波数特性が
得られるという利点を有する。 Furthermore, in the speaker diaphragm according to the present invention, the central vibrating section 3 is circular and the auxiliary vibrating section 4 is square. , or the curvature of the auxiliary vibration section 4 differs depending on the location. For that reason,
This has the advantage that it is possible to prevent the divided vibrations from concentrating on a specific frequency, and that a flat frequency characteristic can be obtained as a whole.
更に本考案に依れば、中央振動部と補助振動部
との両者を振動板と見做すことが出来るので、結
果として直方体形状を有するスピーカボツクス前
面に対し、角形の振動板を配置することになり、
前記スピーカボツクスの前面の面積に対する振動
板の占める割合を大とすることが出来る。その
為、大口径の円形振動板を用いた場合と等価にな
り、低域の再生範囲の拡大を計ることが出来ると
いう利点を有する。 Furthermore, according to the present invention, both the central vibration section and the auxiliary vibration section can be regarded as diaphragms, so that a rectangular diaphragm is placed on the front surface of the speaker box, which has a rectangular parallelepiped shape.
The ratio of the diaphragm to the area of the front of the speaker box can be increased, which is equivalent to using a large-diameter circular diaphragm, and has the advantage of being able to expand the range of low-frequency reproduction.
以上述べた如く、本考案に係るスピーカ振動板
は、簡単に製造出来しかも音響特性を向上出来る
実用的なものである。 As described above, the speaker diaphragm according to the present invention is a practical one that can be easily manufactured and has improved acoustic characteristics.
第１図イは、従来の合成樹脂製振動板を示す断
面図、ロはその平面図、第２図は本考案の一実施
例を示す斜視図、及び第３図は本考案に係るスピ
ーカ振動板を用いたスピーカを示す部分断面図で
ある。
主な図番の説明、３……中央振動部、４……補
助振動部、５……振動板。
Fig. 1A is a sectional view showing a conventional synthetic resin diaphragm, B is a plan view thereof, Fig. 2 is a perspective view showing an embodiment of the present invention, and Fig. 3 is a speaker vibration according to the present invention. FIG. 2 is a partial cross-sectional view showing a speaker using a plate. Explanation of main drawing numbers, 3... Central vibrating section, 4... Auxiliary vibrating section, 5 ... Vibrating plate.
Claims (1)
ていると共に周縁がフレームに取付固定された補
助振動部とから成るスピーカ振動板であつて、前
記中央振動部と前記補助振動部とを合成樹脂材料
により一体成形すると共に前記中央振動部を円形
の半球状に形成し、前記補助振動部を角形で断面
が円弧状に形成したことを特徴とするスピーカ振
動板。 A speaker diaphragm comprising a central vibrating part and an auxiliary vibrating part connected to the periphery of the central vibrating part and having a peripheral edge attached and fixed to a frame, the central vibrating part and the auxiliary vibrating part being combined. 1. A speaker diaphragm characterized in that the central vibrating section is integrally molded from a resin material, and the central vibrating section is formed in a circular hemispherical shape, and the auxiliary vibrating section is formed in a square shape with an arcuate cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18884181U JPS5893092U (en) | 1981-12-17 | 1981-12-17 | speaker diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18884181U JPS5893092U (en) | 1981-12-17 | 1981-12-17 | speaker diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5893092U JPS5893092U (en) | 1983-06-23 |
| JPS6327519Y2 true JPS6327519Y2 (en) | 1988-07-25 |
Family
ID=29992670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18884181U Granted JPS5893092U (en) | 1981-12-17 | 1981-12-17 | speaker diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5893092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2008084685A1 (en) * | 2007-01-11 | 2010-04-30 | 株式会社村田製作所 | Piezoelectric speaker and manufacturing method thereof |
| JP4834004B2 (en) * | 2005-02-18 | 2011-12-07 | エーケージー アコースティックス ゲーエムベーハー | Membrane for dynamic converter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51140620A (en) * | 1975-05-29 | 1976-12-03 | Matsushita Electric Ind Co Ltd | Dome-cone shape vibration plate |
-
1981
- 1981-12-17 JP JP18884181U patent/JPS5893092U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51140620A (en) * | 1975-05-29 | 1976-12-03 | Matsushita Electric Ind Co Ltd | Dome-cone shape vibration plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4834004B2 (en) * | 2005-02-18 | 2011-12-07 | エーケージー アコースティックス ゲーエムベーハー | Membrane for dynamic converter |
| JPWO2008084685A1 (en) * | 2007-01-11 | 2010-04-30 | 株式会社村田製作所 | Piezoelectric speaker and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5893092U (en) | 1983-06-23 |
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