JPS5925560B2 - edgeless speaker - Google Patents
edgeless speakerInfo
- Publication number
- JPS5925560B2 JPS5925560B2 JP10941180A JP10941180A JPS5925560B2 JP S5925560 B2 JPS5925560 B2 JP S5925560B2 JP 10941180 A JP10941180 A JP 10941180A JP 10941180 A JP10941180 A JP 10941180A JP S5925560 B2 JPS5925560 B2 JP S5925560B2
- Authority
- JP
- Japan
- Prior art keywords
- support plate
- diaphragm
- center
- cone
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
【発明の詳細な説明】
本発明は、コーン形振動板を有するスピーカに関し、エ
ツジを具備せず、エツジ共振を除去し音圧周波数特性を
平担化することができるエツジレススピーカを提供する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker having a cone-shaped diaphragm, and provides an edgeless speaker that does not have edges and can eliminate edge resonance and flatten sound pressure frequency characteristics. It is.
第１図は従来のスピーカを示している。FIG. 1 shows a conventional speaker.
第１図において、１はセンターポール２が一体に形成さ
れたヨーク、３はヨーク１上に固定された環状のマグネ
ット、４は上記マグネット３上に固定された環状のプレ
ートであり、このプレート４の内周面と上記センターポ
ール２との間に環状の磁気ギャップが形成される。In FIG. 1, 1 is a yoke in which a center pole 2 is integrally formed, 3 is an annular magnet fixed on the yoke 1, and 4 is an annular plate fixed on the magnet 3. An annular magnetic gap is formed between the inner peripheral surface of the center pole 2 and the center pole 2.
５はプレート４に固定されたフレーム、６はコーン形振
動板であり、この振動板６の外周部はエツジ部材７を介
して上記フレーム５に支持されている。5 is a frame fixed to the plate 4; 6 is a cone-shaped diaphragm; the outer periphery of the diaphragm 6 is supported by the frame 5 via an edge member 7;
８は振動板６に固定されたコイルボビンであり、このコ
イルボビン８にボイスコイル９が巻回されている。A coil bobbin 8 is fixed to the diaphragm 6, and a voice coil 9 is wound around the coil bobbin 8.
このボイスコイル９は前記磁気ギャップ部に配置されて
いるものである。This voice coil 9 is arranged in the magnetic gap section.
１０はコイルボビン８を支持するダンパー、１１はダス
トキャップである。10 is a damper that supports the coil bobbin 8, and 11 is a dust cap.
上記従来のスピーカにおけるエツジ部材７は、振動板６
の保持と、空気漏洩の防止のために用いられている。The edge member 7 in the conventional speaker described above is the diaphragm 6
It is used to retain air and prevent air leakage.
しかしながら、上記従来のスピーカは、エツジ部材７の
重量が振動板にかかり、振動部の重量が増加し、能率が
低下するとともに、エツジ共振が発生し、音圧周波数特
性が乱れ、平担な特性が得られない欠点があった。However, in the above-mentioned conventional speaker, the weight of the edge member 7 is applied to the diaphragm, the weight of the vibrating part increases, the efficiency decreases, edge resonance occurs, the sound pressure frequency characteristics are disturbed, and the characteristics are flat. There was a drawback that it could not be obtained.
本発明は上記従来の欠点を除去するものであり、以下に
本発明の一実施例について第２図、第３図 。The present invention eliminates the above-mentioned conventional drawbacks, and an embodiment of the present invention will be described below with reference to FIGS. 2 and 3.
とともに説明する。I will explain it together.
第２図において、１２はセンターポール２の上面に固定
された円柱状の支柱、１３は球殻状の支持板であり、こ
の支持板１３の外周部は振動板６に固定されている。In FIG. 2, 12 is a cylindrical support fixed to the upper surface of the center pole 2, and 13 is a spherical shell-shaped support plate, and the outer circumference of this support plate 13 is fixed to the diaphragm 6.
上記支持板１３の中央には孔１４が形成され、この孔１
４の孔縁には球面を有する３個の突起１５が形成されて
いる。A hole 14 is formed in the center of the support plate 13, and this hole 1
Three protrusions 15 each having a spherical surface are formed on the edge of the hole 4 .
上記支持板１３の孔１４が支柱１２に挿入され、突起１
５が支柱１２の外周面に接触し、摺動可能に支持されて
いる。The hole 14 of the support plate 13 is inserted into the support column 12, and the protrusion 1
5 is in contact with the outer peripheral surface of the support column 12 and is slidably supported.
なお支持板１３と支柱１２との接触部からの空気の漏洩
を防止するため、または摺動抵抗雑音を防ぐために、グ
リース等の粘弾性体を塗布したり、不織布を設けてもよ
いものである。Note that in order to prevent air leakage from the contact portion between the support plate 13 and the support column 12 or to prevent sliding resistance noise, a viscoelastic material such as grease may be applied or a nonwoven fabric may be provided. .
上記支持板１３は、金属、プラスチック、紙等で形成さ
れる。The support plate 13 is made of metal, plastic, paper, or the like.
また支柱１２は金属、プラスチック等で形成される。Further, the support column 12 is made of metal, plastic, or the like.
また支柱１２は円柱に限らず円筒状、多角形状でもよい
ものである。Further, the support column 12 is not limited to a cylinder, but may be cylindrical or polygonal.
なお振動板６の外周端はフリーであるが、振動板６とフ
レーム５との間隙を小さくする必要がある。Although the outer peripheral end of the diaphragm 6 is free, it is necessary to reduce the gap between the diaphragm 6 and the frame 5.
また、振動板６の外周端とフレーム５との間に、空気抵
抗を有し振動板の上下動をできるだけさまたげない発泡
体等の柔軟性の材料を介在させてもよいものである。Furthermore, a flexible material such as a foam material that has air resistance and does not hinder the vertical movement of the diaphragm as much as possible may be interposed between the outer peripheral end of the diaphragm 6 and the frame 5.
第４図は第１図に示す従来のスピーカの音圧周波数特性
ａおよび本発明のエツジレススピーカの音圧周波数特性
すを示しており、本発明によればエツジ部材が無く、振
動部の重量が軽くなるため、能率が１ｄＢアツプすると
ともに、エツジ共振が発生しないため、平担な音圧周波
数特性が得られるものである。Fig. 4 shows the sound pressure frequency characteristic a of the conventional speaker shown in Fig. 1 and the sound pressure frequency characteristic a of the edgeless speaker of the present invention. Since the weight becomes lighter, the efficiency increases by 1 dB, and since edge resonance does not occur, a flat sound pressure frequency characteristic can be obtained.
また上記実施例では支持板と支柱とが点接触であるため
接触抵抗が小さく、また摺動音も非常に小さくなるもの
である。Further, in the above embodiment, since the support plate and the support column are in point contact, the contact resistance is small and the sliding noise is also very small.
本発明は上記のような構成であり、本発明によれば以下
に示す効果が得られる。The present invention has the above configuration, and according to the present invention, the following effects can be obtained.
■ 能率が向上する。■ Improved efficiency.
２ 音圧周波数特性が平担となる。2 Sound pressure frequency characteristics become flat.
３ 安価に製造できる。3. Can be manufactured at low cost.
４ 支持板がダストキャップとして兼用できる。4. The support plate can also be used as a dust cap.
第１図は従来のスピーカの断面図、第２図は本発明の一
実施例におけるエツジレススピーカの断面図、第３図は
同スピーカの支持板の上面図、第４図は従来のスピーカ
および本発明のエツジレススピーカの音圧周波数特性図
である。
１・・・・・・ヨーク、２・・・・・・センターポール
、３・・・・・・マグネット、４・・・・・・プレート
、５・・・・・・フレーム、６・・・・・・コーン形振
動板、８・・・・・・コイルボビン、９・・・・・・ボ
イスコイル、１０・・・・・・ダンパー、１２・・・・
・・支柱、１３・・・・・・支持板、１４・・・・・・
孔、１５・・・・・・突起。Fig. 1 is a sectional view of a conventional speaker, Fig. 2 is a sectional view of an edgeless speaker according to an embodiment of the present invention, Fig. 3 is a top view of the support plate of the same speaker, and Fig. 4 is a sectional view of a conventional speaker and FIG. 3 is a sound pressure frequency characteristic diagram of the edgeless speaker of the present invention. 1... Yoke, 2... Center pole, 3... Magnet, 4... Plate, 5... Frame, 6... ... Cone-shaped diaphragm, 8 ... Coil bobbin, 9 ... Voice coil, 10 ... Damper, 12 ...
...Strut, 13...Support plate, 14...
Hole, 15...protrusion.
Claims (1)
上記コーン形振動板に固定された支持板の中心の孔を上
記支柱に挿入し、上記支持板を上記支柱に摺動可能に支
持してなるエツジレススピーカ。 ２ 中心の孔の孔縁に３個以上の突起が形成された支持
板を用い、この支持板の突起を支柱外周面に接触させて
なる特許請求の範囲第１項記載のエツジレススピーカ。 ３ 振動板の外周部とフレームとの間隙に、空気抵抗を
有する柔軟性の材料を介在させてなる特許請求の範囲第
１項記載のエツジレススピーカ。[Scope of Claims] 1. A support plate is arranged at the center of a cone-shaped diaphragm, and a hole at the center of a support plate whose outer periphery is fixed to the cone-shaped diaphragm is inserted into the support column, and the support plate is placed in the center of the cone-shaped diaphragm. An edgeless speaker that is slidably supported on a pillar. 2. The edgeless speaker according to claim 1, which uses a support plate in which three or more protrusions are formed on the edge of the center hole, and the protrusions of the support plate are brought into contact with the outer peripheral surface of the support column. 3. The edgeless speaker according to claim 1, wherein a flexible material having air resistance is interposed in the gap between the outer peripheral portion of the diaphragm and the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10941180A JPS5925560B2 (en) | 1980-08-09 | 1980-08-09 | edgeless speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10941180A JPS5925560B2 (en) | 1980-08-09 | 1980-08-09 | edgeless speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5735499A JPS5735499A (en) | 1982-02-26 |
| JPS5925560B2 true JPS5925560B2 (en) | 1984-06-19 |
Family
ID=14509559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10941180A Expired JPS5925560B2 (en) | 1980-08-09 | 1980-08-09 | edgeless speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5925560B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6198476A (en) * | 1984-10-19 | 1986-05-16 | Casio Comput Co Ltd | Card terminal and its certifying system |
-
1980
- 1980-08-09 JP JP10941180A patent/JPS5925560B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5735499A (en) | 1982-02-26 |
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