JPS611199A - Speaker - Google Patents
SpeakerInfo
- Publication number
- JPS611199A JPS611199A JP12064584A JP12064584A JPS611199A JP S611199 A JPS611199 A JP S611199A JP 12064584 A JP12064584 A JP 12064584A JP 12064584 A JP12064584 A JP 12064584A JP S611199 A JPS611199 A JP S611199A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- center
- diaphragm
- cylindrical
- horizontal edge
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は各種の電気音響機器に利用されるスピーカに関
するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to speakers used in various electroacoustic devices.
（従来例の構成とその問題点）
従来のスピーカについて、第】図及び第２図によシ説明
する。(Structure of conventional example and its problems) A conventional speaker will be explained with reference to FIGS. 1 and 2.
第１図において、従来のスピーカは、腕形ヨーり１の中
心にプレート２及び磁石３を固着して環状の磁気ギャッ
プ４を形成した界磁部と、中心に上記碗形ヨーク１を圧
入固定する碗形凹部５ａを、外周に上記碗形凹部５ａと
同心の円筒立縁５ｂで囲まれた水平縁５Ｃをそれぞれ形
成したフレーム５と、外周に上記フレーム５の水平縁５
Ｃの上面に接着さね、ろ水平縁６ａを形成し、中心に上
記磁気ギャップ４に挿入するディスコイル７が接合され
た振動板６とで構成されている。In FIG. 1, the conventional speaker has a field part in which a plate 2 and a magnet 3 are fixed to the center of an arm-shaped yaw 1 to form an annular magnetic gap 4, and the bowl-shaped yoke 1 is press-fitted and fixed in the center. A frame 5 having a bowl-shaped recess 5a formed on its outer periphery and a horizontal edge 5C surrounded by a cylindrical vertical edge 5b concentric with the bowl-shaped recess 5a, and a horizontal edge 5 of the frame 5 on its outer periphery.
A diaphragm 6 is bonded to the upper surface of the diaphragm C to form a filter horizontal edge 6a, and a disc coil 7 to be inserted into the magnetic gap 4 is bonded to the center.
第２図はフレーム５に対して、振動板６を同心に接着し
たスピーカ外周部の拡大図で、振動板６は、振動板６の
水平縁６ａの外周縁６ｂが、フレーム５の円筒立縁５ｂ
の内径面５ｄで案内された状態で、振動板６の水平縁６
ａの下面とフレーム５の水平縁５ｃの上面とが接着され
ている状態を示す。FIG. 2 is an enlarged view of the outer periphery of a speaker in which a diaphragm 6 is concentrically bonded to a frame 5. 5b
The horizontal edge 6 of the diaphragm 6 is guided by the inner diameter surface 5d of the diaphragm 6.
It shows a state in which the lower surface of a and the upper surface of the horizontal edge 5c of the frame 5 are adhered.
しかしながら、フレ一ム５はプレス成形されるため、円
筒立縁５ｂと水平縁５ｃと−のなす隅には丸みができる
ため、振動板６の水平縁６ａの外周縁６ｂがこの丸みに
乗り上げて振動板６をフレーム５に同心に位置せしめる
案内力が不充分とな９、振動板６がフレーム５に対して
偏心して接着され、このため月？イスコイル７が磁気ギ
ャップ４の中心に互いに同心に正しく保持さｔ′Ｌない
という問題点があった。However, since the frame 5 is press-molded, the corner between the cylindrical vertical edge 5b and the horizontal edge 5c is rounded, so the outer peripheral edge 6b of the horizontal edge 6a of the diaphragm 6 rides on this roundness. The guiding force for positioning the diaphragm 6 concentrically with the frame 5 is insufficient 9, and the diaphragm 6 is glued eccentrically to the frame 5, which causes the moon to be distorted. There is a problem in that the coils 7 are not properly held concentrically with each other in the center of the magnetic gap 4.
（発明の目的）
本発明は上記の欠点を解消するもので、フレームに振動
板が同心に接着され、従って、振動板の中心に接合され
たボイスコイルが磁気ギャップの中心に正しく保持され
たスピーカを折供しようとするものである。(Object of the invention) The present invention solves the above-mentioned drawbacks, and provides a speaker in which a diaphragm is bonded concentrically to a frame, and a voice coil bonded to the center of the diaphragm is therefore held correctly at the center of the magnetic gap. It is intended to be offered as an offering.
（発明の構成）
本発明は、フレーム５の円筒立縁５ｂの円筒内径面を利
用し、て振動板６を案内するため、フレーム５０円筒立
縁５ｂと水平縁５ｃとのなす隅の丸みを避けるように、
振動板６の水平縁６ａの外周部に段部を設けるものであ
る。(Structure of the Invention) In order to guide the diaphragm 6 by utilizing the cylindrical inner diameter surface of the cylindrical vertical edge 5b of the frame 5, the rounded corner formed by the cylindrical vertical edge 5b and the horizontal edge 5c of the frame 50 is to avoid,
A stepped portion is provided on the outer periphery of the horizontal edge 6a of the diaphragm 6.
さらｆ１水平縁６ａの外周部の段部の外側を、フレーム
５の円筒立縁５ｂの開放方向に折り曲げた円筒立縁を形
成し、フレーム５の円筒立縁５ｂとの接触面積を増加し
、より確実な案内を得ようとするものである。Further, the outside of the stepped portion of the outer peripheral part of the f1 horizontal edge 6a is bent in the opening direction of the cylindrical vertical edge 5b of the frame 5 to form a cylindrical vertical edge to increase the contact area with the cylindrical vertical edge 5b of the frame 5, This is an attempt to obtain more reliable guidance.
（実施例の説明）
本発明の一実施例について、第３図及び第４図により説
明する。(Description of Embodiment) An embodiment of the present invention will be described with reference to FIGS. 3 and 4.
第３図において、本発明のスピーカは、腕形ヨークＪの
中心にプレート２及び磁石３を固着して円形の磁気ギヤ
、ｆ４を形成した界磁部と、中心に上記腕形ヨークＪを
圧入固定する碗形凹部５ａを、夕）周に上記碗形凹部５
ａと同心の円筒立縁５ｂで囲まれた水平縁５Ｃをそれぞ
れ形成したフレーム５と、外周に上記フレーム５の水平
縁５Ｃの上面に接着される水平縁６ａとその外周部にフ
レーム５の円筒立縁５ｂの円筒内径面５ｄに嵌合する段
部６ｃを形成し、中ｌＬ・に上記磁気ギャップ４に挿入
されたボイスコイル７が接合された振動板６とで構成さ
れている。In FIG. 3, the speaker of the present invention has a field part in which a plate 2 and a magnet 3 are fixed to the center of an arm-shaped yoke J to form a circular magnetic gear f4, and the arm-shaped yoke J is press-fitted in the center. The bowl-shaped recess 5a to be fixed is placed around the bowl-shaped recess 5.
The frame 5 has a horizontal edge 5C surrounded by a cylindrical vertical edge 5b concentric with the frame 5, a horizontal edge 6a glued to the upper surface of the horizontal edge 5C of the frame 5 on the outer periphery, and a cylindrical frame of the frame 5 on the outer periphery. A stepped portion 6c is formed to fit into the cylindrical inner diameter surface 5d of the vertical edge 5b, and the diaphragm 6 is connected to the voice coil 7 inserted into the magnetic gap 4 in the middle.
第４図１はフレーム５に対して、振動板６を同心に接着
したスピーカ外周部の拡大図を示し、振動板６は、振動
板６の水平縁６ａに設けられた段部６ｃの外周部６ｄが
、フレーム５の円筒立縁５ｂの円筒内径面５ｄで案内さ
れた状態で、振動板６の水平縁６ａの下面とフレーム５
の水平縁５ｃの上面とが接着されている状態を示す。こ
のようにするとフレーム５の水平縁５ｃと円筒立ｉ５ｂ
との交叉部の丸みを避けて振動板６をフ１／−ム５に取
り伺けることができる。FIG. 4 1 shows an enlarged view of the outer periphery of a speaker in which a diaphragm 6 is concentrically bonded to a frame 5. 6d is guided by the cylindrical inner diameter surface 5d of the cylindrical vertical edge 5b of the frame 5, and the lower surface of the horizontal edge 6a of the diaphragm 6 and the frame 5
The upper surface of the horizontal edge 5c is shown bonded to the upper surface of the horizontal edge 5c. In this way, the horizontal edge 5c of the frame 5 and the cylindrical stand i5b
The diaphragm 6 can be placed on the frame 1/-5 while avoiding roundness at the intersection.
本発明の他の実施例について、第５図により説明する１
１本実施例のフレーム５及びこの中に圧入固定された界
磁部は第３図と同じであるから説明は省略し、第３図及
び第４図と異る振動板６について説明する。Another embodiment of the present invention will be explained with reference to FIG. 1.
1. Since the frame 5 of this embodiment and the field part press-fitted therein are the same as those shown in FIG. 3, their explanation will be omitted, and the diaphragm 6, which is different from those shown in FIGS. 3 and 4, will be explained.
第５図はフレーム５に対して、本発明による振動板６を
同ノし・に接着したスピーカ外周部の拡大図を示し、振
動板６は、振動板６の水平縁６ａＫ設けらｔｌ−た段部
６ｃの外側を、フレーム５の円筒立縁５ｂの開放方向に
折９曲げた円筒立縁６ｅの円筒外径面６ｆが、フレーム
５０円筒立縁５ｂの円筒内径面５ｄで案内され、振動板
６の水平縁６ａの下面とフレーム５の水平縁５ｃの上面
とが接着さね、ている状態を示す。このようにすると振
動板６の円筒外径面６ｆとフレーム５の円筒立縁５ｂの
円筒内径面５ｄに接触する面積が増加するから、振動板
６とフレーム５の相互関係が安定する。FIG. 5 shows an enlarged view of the outer periphery of a speaker in which a diaphragm 6 according to the present invention is bonded to the frame 5 in the same direction. The cylindrical outer diameter surface 6f of the cylindrical vertical edge 6e, which is obtained by bending the outside of the stepped portion 6c in the opening direction of the cylindrical vertical edge 5b of the frame 5, is guided by the cylindrical inner diameter surface 5d of the cylindrical vertical edge 5b of the frame 50, and vibrates. A state in which the lower surface of the horizontal edge 6a of the plate 6 and the upper surface of the horizontal edge 5c of the frame 5 are adhered to each other is shown. In this way, the area of contact between the cylindrical outer diameter surface 6f of the diaphragm 6 and the cylindrical inner diameter surface 5d of the cylindrical upright edge 5b of the frame 5 increases, so that the mutual relationship between the diaphragm 6 and the frame 5 is stabilized.
（発明の効果）
以上説明したように、本発明では、ボイスコイルを磁気
ギャップの中心に保持するダンパーがなくても、ボイス
コイルを磁気ギャップの中心に極めて高い同心度で保持
できるスピーカが得られる。(Effects of the Invention) As explained above, the present invention provides a speaker that can hold the voice coil at the center of the magnetic gap with extremely high concentricity even without a damper that holds the voice coil at the center of the magnetic gap. .
第１図は従来のスピーカの断面図、第２図は第１図のス
ピーカの外周部を拡大した断面図、第３図は本発明によ
るスピーカの断面図、第４図及び第５図は本発明の２実
施例によるスピーカの外周部をそれぞれ拡大した断面図
である。
Ｊ、腕形ヨーク、２・・プレート、３・・・磁石、４・
・・磁気ギヤ、プ、５・ フレーム、５ａ・碗形凹部、
５ ｂ 、 ６ ｅ−円筒立縁、５ ｃ 、 ６ 、ａ
−水平縁、５ｄ・円筒内径面、６・・振動板、６ｂ 外
周縁、６ｃ・・・段部、６ｄ−・外周部、６ｆ・・円筒
外径面、７・ボイスコイル。
第１図
第２図FIG. 1 is a sectional view of a conventional speaker, FIG. 2 is an enlarged sectional view of the outer periphery of the speaker shown in FIG. 1, FIG. 3 is a sectional view of a speaker according to the present invention, and FIGS. FIG. 3 is an enlarged cross-sectional view of the outer peripheral portion of a speaker according to two embodiments of the invention. J, arm-shaped yoke, 2... plate, 3... magnet, 4...
・・Magnetic gear, pu, 5・Frame, 5a・bowl-shaped recess,
5 b, 6 e-cylindrical standing edge, 5 c, 6, a
-Horizontal edge, 5d, cylindrical inner diameter surface, 6...diaphragm, 6b outer periphery, 6c...stepped portion, 6d--outer periphery, 6f...cylindrical outer diameter surface, 7.voice coil. Figure 1 Figure 2
Claims (2)
環状の磁気ギャップを形成した界磁部と、中心に上記碗
形ヨークを圧入固定する碗形凹部を、外周に上記碗形凹
部と同心の円筒立縁で囲まれた水平縁をそれぞれ形成し
たフレームと、外周に上記フレームと接着される水平縁
を形成し、中心に上記磁気ギャップに挿入するボイスコ
イルが接合された振動板とで構成されたダンパーレス構
造のスピーカにおいて、フレームの円筒立縁と水平縁と
のなす隅の丸みを避けて、円筒立縁の円筒内径面に嵌合
するように、振動板の水平縁の外周部に段部を形成した
段部付き水平縁を有する振動板を用いたことを特徴とす
るスピーカ。(1) A field part in which a plate and a magnet are fixed to the center of a bowl-shaped yoke to form an annular magnetic gap, a bowl-shaped recess in the center to which the bowl-shaped yoke is press-fitted, and a bowl-shaped recess on the outer periphery. A frame each having a horizontal edge surrounded by concentric cylindrical edges, a diaphragm having a horizontal edge bonded to the frame on its outer periphery, and a voice coil bonded to the center to be inserted into the magnetic gap. In the speaker having a damperless structure, the outer periphery of the horizontal edge of the diaphragm is designed to fit into the inner diameter surface of the cylindrical edge of the frame, avoiding the roundness of the corner formed by the cylindrical edge and the horizontal edge of the frame. A speaker characterized by using a diaphragm having a stepped horizontal edge with a stepped portion formed thereon.
成された円筒立縁の開放方向に折り曲げて円筒立縁を形
成した円筒立縁段部付き水平縁を有する振動板を用いた
ことを特徴とする特許請求の範囲第（１）項記載のスピ
ーカ。(2) A diaphragm having a stepped horizontal edge with a stepped cylindrical edge formed by bending the outer peripheral part of the stepped horizontal edge in the opening direction of the cylindrical standing edge formed on the outer periphery of the frame was used. A speaker according to claim (1), characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12064584A JPS611199A (en) | 1984-06-14 | 1984-06-14 | Speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12064584A JPS611199A (en) | 1984-06-14 | 1984-06-14 | Speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS611199A true JPS611199A (en) | 1986-01-07 |
Family
ID=14791349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12064584A Pending JPS611199A (en) | 1984-06-14 | 1984-06-14 | Speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS611199A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04310291A (en) * | 1991-04-04 | 1992-11-02 | Kubota Corp | Submerged aeration apparatus |
-
1984
- 1984-06-14 JP JP12064584A patent/JPS611199A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04310291A (en) * | 1991-04-04 | 1992-11-02 | Kubota Corp | Submerged aeration apparatus |
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