JP2629704B2 - Cone for rectangular speaker - Google Patents
Cone for rectangular speakerInfo
- Publication number
- JP2629704B2 JP2629704B2 JP62113009A JP11300987A JP2629704B2 JP 2629704 B2 JP2629704 B2 JP 2629704B2 JP 62113009 A JP62113009 A JP 62113009A JP 11300987 A JP11300987 A JP 11300987A JP 2629704 B2 JP2629704 B2 JP 2629704B2
- Authority
- JP
- Japan
- Prior art keywords
- cone
- rectangular speaker
- neck
- shape
- rectangular
- 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 - Fee Related
Links
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は各種音響機器や映像機器などに利用される矩
形スピーカ用コーンに関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cone for a rectangular speaker used for various audio equipment and video equipment.
従来の技術 この種の矩形スピーカに用いられる角錐コーンは、第
２図のようにネック部1,コーン面2,エッジ部３を有する
構造，形状になっていた。すなわち、コーン面２の斜面
は、直線又は全周にわたって同一のＲ、第２図の断面で
示すとR1＝R2＝R3になっていて、ダストキャップを接合
する面は平面図に示す通りであった。2. Description of the Related Art A pyramid cone used in a rectangular speaker of this type has a structure and a shape having a neck portion 1, a cone surface 2, and an edge portion 3 as shown in FIG. That is, the slope of the cone surface 2 is the same R over a straight line or the entire circumference, and R 1 = R 2 = R 3 when shown in the cross section of FIG. 2, and the surface to which the dust cap is joined is shown in a plan view. It was right.
発明が解決しようとする問題点 ところが前者の角錐コーンの形状であると、傾斜面、
特に周辺部での強度差が生じる。すなわち、矩形のコー
ナー部で強く辺の中心部で著しく弱くなる。円錐コーン
スピーカでは、ピストンモーション領域を越える固有振
動領域での音圧周波数特性の乱れや歪の増大を防ぐに
は、コーンの外周方向の面厚が均一であるため、強度も
均一にして面厚、材料等を適切にすれば可能である。し
かし従来の角錐コーンの場合、コーン外周方向の強度を
均一にするには厚みや材料等を変える必要があるが、技
術面、コスト面で不利である。従って、コーンの必要強
度を面厚調整によって得ようとすると、コーン面積に対
する重量が円錐コーンより大きくなり、矩形スピーカの
放射面積アップによる能率面での優位性が発揮できなく
なったり、あるいは音圧周波数特性の劣化や歪といった
性能面が犠牲になったりする。Problems to be Solved by the Invention However, in the case of the former pyramid cone shape, the inclined surface,
In particular, a difference in strength occurs at the peripheral portion. That is, it is strong at the corners of the rectangle and significantly weak at the center of the side. In the cone cone speaker, to prevent disturbance of sound pressure frequency characteristics and increase of distortion in the natural vibration region beyond the piston motion region, the cone is uniform in outer peripheral direction, so the strength is also made uniform and the cone thickness is reduced. It is possible if the material and the like are appropriate. However, in the case of the conventional pyramid cone, it is necessary to change the thickness and the material in order to make the strength in the outer peripheral direction of the cone uniform, but this is disadvantageous in terms of technology and cost. Therefore, when trying to obtain the required strength of the cone by adjusting the surface thickness, the weight with respect to the cone area becomes larger than that of the cone cone, and the superiority in efficiency due to the increase in the radiation area of the rectangular speaker cannot be exhibited, or the sound pressure frequency Performance aspects such as characteristic deterioration and distortion are sacrificed.
又、コーン面にダストキャップを接合する場合、一定
Ｒのカーブドコーンでは、第２図の平面図に示すような
特殊形状となり、ダストキャップ形状がコーン面と合致
しなかったり、接合時にずれたりしてコーン面に添わす
ことが難しく、接合力の低下や外観上の問題が発生して
いた。When a dust cap is joined to the cone surface, a curved cone having a constant radius has a special shape as shown in the plan view of FIG. 2, and the dust cap shape does not match the cone surface or the shape is shifted during joining. Therefore, it is difficult to attach to the cone surface, causing a decrease in bonding strength and a problem in appearance.
そこで本発明は、角錐コーンの部分的な強度差を面
厚、材料等を変えることなく小さくして、コーン面の軽
量化で、矩形スピーカの能率面での優位性を十分発揮さ
せ、しかもダストキャップと角錐コーンとの接合も容易
にさせるものである。Therefore, the present invention reduces the partial strength difference of the pyramid cone without changing the surface thickness, the material, etc., reduces the weight of the cone surface, sufficiently exerts the superiority in the efficiency of the rectangular speaker, and furthermore reduces the dust. It also facilitates the connection between the cap and the pyramid cone.
問題点を解決するための手段 この問題を解決するため本発明の矩形スピーカ用コー
ンは、開口面が矩形形状の角錐コーンの振動面の傾斜部
の半径を、長径の中心部において大きく、コーナー部で
小さくするとともに、ネック部とエッジ部との間に任意
に設定したコーン面の一平面断面の形状が円形ネック部
と同心で且つ、円形又は楕円形になるように構成したも
のである。Means for Solving the Problems In order to solve this problem, the rectangular speaker cone of the present invention is configured such that the radius of the inclined portion of the vibrating surface of the pyramidal cone having a rectangular opening is increased at the center of the major axis, and the corner portion is increased. And the shape of the one-plane cross section of the cone surface arbitrarily set between the neck portion and the edge portion is configured to be concentric with the circular neck portion and circular or elliptical.
作用 角錐コーンの周辺部の強度が面厚を一定にして均一化
されるため、重量が軽減でき能率向上が図れる。しか
も、ダストキャップがコーン面に添わせやすい形状にな
り、接合が容易で接合強度、接合後の外観面でも優れて
いる。Function Since the strength of the peripheral portion of the pyramid cone is made uniform with the surface thickness kept constant, the weight can be reduced and the efficiency can be improved. In addition, the dust cap has a shape that easily fits on the cone surface, so that the joining is easy, the joining strength is excellent, and the appearance after joining is excellent.
実施例 以下、本発明の一実施例における矩形スピーカ用コー
ンについて第１図（ａ）〜第１図（ｃ）により説明す
る。第１図（ａ）は矩形スピーカ用コーンの平面図であ
り、第１図（ｂ）は第１図（ａ）のＢ−Ｏ−Ｂ′の側面
（Ｏ−Ｂ′は側断面）図であり、第１図（ｃ）は第１図
（ａ）のＯ−Ｅ側断面図である。Embodiment Hereinafter, a rectangular speaker cone according to an embodiment of the present invention will be described with reference to FIGS. 1 (a) to 1 (c). FIG. 1 (a) is a plan view of a rectangular speaker cone, and FIG. 1 (b) is a side view (OB 'is a side cross section) of B-OB' in FIG. 1 (a). FIG. 1 (c) is a sectional view taken along the line OE in FIG. 1 (a).
第１図（ａ），（ｂ）に示すように、角錐コーンの頂
部にはボイスコイルと接合するネック部11、角錐コーン
面12、コーン面12に接合されたエッジ部13から構成され
ている。第１図（ｂ）の半断面図のＡ−Ａ′部にダスト
キャップが接合されたものとすると、この部分の平面形
状14は、楕円形になるようにコーン面のカーブの半径Ｒ
を連続的に変えている。As shown in FIGS. 1 (a) and 1 (b), the top of the pyramid cone is composed of a neck portion 11 joined to the voice coil, a pyramid cone surface 12, and an edge portion 13 joined to the cone surface 12. . Assuming that the dust cap is joined to the AA 'portion of the half sectional view of FIG. 1 (b), the plane shape 14 of this portion becomes elliptical so that the radius R of the curve of the cone surface becomes elliptical.
Is continuously changing.
具体的な形状寸法を次に述べる。すなわち、コーン部
の開口部の形状は70mm×50mmの矩形で、ネック部はφ14
mmの円形である。高さ寸法は15mmで、これにネック部か
ら6.1mmの位置に、30mm×25mmのダストキャップが貼ら
れるような形状とすると、コーン面12の傾斜部は第１図
（ｂ）、第１図（ｃ）に示すように第１図（ａ）に示す
長径の中心部（辺の中心部）Ba点において第１図（ｂ）
の半径Raのごとく大きく、第１図（ａ）に示すコーナー
部Ea点で第１図（ｃ）の半径Rbのごとく順次小さくなっ
ている。Specific shapes and dimensions will be described below. That is, the shape of the opening of the cone is a rectangle of 70 mm x 50 mm, and the neck is φ14
It is a circle of mm. Assuming that the height is 15 mm, and a 30 mm x 25 mm dust cap is attached to this at a position 6.1 mm from the neck, the inclined part of the cone surface 12 will be as shown in Figs. 1 (b) and 1 (b). As shown in FIG. 1C, the center of the major axis (center of the side) Ba point shown in FIG.
, And gradually decreases at the corner Ea shown in FIG. 1 (a), like the radius Rb in FIG. 1 (c).
このように辺の中心とネック部11との間のコーン面12
の半径Raをコーナー部とネック部11との間のコーン面12
の半径Rbより大きく（Ra＞Rb）したことにより周辺部の
強度差は小さく緩和されている。Thus, the cone surface 12 between the center of the side and the neck 11
The radius Ra of the cone surface 12 between the corner and the neck 11
Is larger than the radius Rb (Ra> Rb), the difference in strength at the peripheral portion is reduced and reduced.
発明の効果 以上のように本発明は、角錐コーンのコーナー部と辺
の中心部との強度差を小さくすることで、ほぼ均一な面
厚のコーンにおいても、コーン面が軽量化されるため能
率の面で優れている。Advantageous Effects of the Invention As described above, the present invention reduces the difference in strength between the corners of the pyramid cone and the center of the sides, thereby reducing the weight of the cone surface even in a cone having a substantially uniform surface thickness, thereby improving efficiency. Excellent in terms of.
また、ネック部とエッジ部との間に設定された一平面
断面の形状を円形、又は楕円径としたので、ダストキャ
ップを接合する場合には、接合を容易にかつ確実にし、
品質、信頼性を安定させるとともに接合部分の外観面で
有利となる。しかも、従来の楕円コーンや、円錐コーン
に用いたダストキャップが使用でき、スピーカの開発コ
ストを低減できる。In addition, since the shape of one plane cross section set between the neck portion and the edge portion is a circle or an elliptical diameter, when joining a dust cap, joining is easily and reliably performed,
This stabilizes the quality and reliability and is advantageous in the appearance of the joint. In addition, the conventional elliptical cone and the dust cap used for the cone can be used, and the development cost of the speaker can be reduced.
第１図（ａ）は本発明の一実施例の矩形スピーカ用コー
ンの平面図、第１図（ｂ）は第１図（ａ）のＢ−Ｏ−
Ｂ′の側面（Ｏ−Ｂ′は側断面）図、第１図（ｃ）は第
１図（ａ）のＯ−Ｅ側断面図、第２図（ａ）は従来の矩
形スピーカ用コーンの平面図、第２図（ｂ）は第２図
（ａ）の側面（Ｏ−Ｃは側断面）図、第２図（ｃ）は第
２図（ａ）の側面（Ｏ−Ｅは側断面）図、第２図（ｄ）
は第２図（ａ）の側面（Ｏ−Ｇは側断面）図である。 11……ネック部、12……コーン面、13……エッジ部。FIG. 1 (a) is a plan view of a rectangular speaker cone according to one embodiment of the present invention, and FIG. 1 (b) is B-O- of FIG. 1 (a).
FIG. 1 (c) is a sectional view taken along the line OE in FIG. 1 (a), and FIG. 2 (a) is a side view of a conventional rectangular speaker cone. FIG. 2 (b) is a side view (OC is a side cross section) of FIG. 2 (a), and FIG. 2 (c) is a side view (OE is a side cross section of FIG. 2 (a)). ), FIG. 2 (d)
Fig. 3 is a side view (OG is a side cross section) of Fig. 2 (a). 11 ... neck, 12 ... cone, 13 ... edge.
Claims (1)
傾斜部の半径を長径の中心部において大きく、コーナー
部で小さくするとともに、ネック部とエッジ部との間に
任意に設定したコーン面の一平面断面の形状が円形ネッ
ク部と同心で且つ、円形又は楕円形になるように形成さ
れた矩形スピーカ用コーン。1. A cone whose opening surface has a rectangular pyramid cone whose radius of inclination of the vibrating surface is large at the center of the major axis, small at the corner, and arbitrarily set between the neck and the edge. A rectangular speaker cone formed such that the shape of one plane cross section of the surface is concentric with a circular neck portion and is circular or elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62113009A JP2629704B2 (en) | 1987-05-08 | 1987-05-08 | Cone for rectangular speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62113009A JP2629704B2 (en) | 1987-05-08 | 1987-05-08 | Cone for rectangular speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63278492A JPS63278492A (en) | 1988-11-16 |
| JP2629704B2 true JP2629704B2 (en) | 1997-07-16 |
Family
ID=14601150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62113009A Expired - Fee Related JP2629704B2 (en) | 1987-05-08 | 1987-05-08 | Cone for rectangular speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2629704B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2022137865A1 (en) * | 2020-12-25 | 2022-06-30 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6068794U (en) * | 1983-10-17 | 1985-05-15 | オンキヨー株式会社 | Vibration plate for oval speaker |
| JPS6157693U (en) * | 1984-09-18 | 1986-04-18 | ||
| JPS6190393U (en) * | 1984-11-19 | 1986-06-12 |
-
1987
- 1987-05-08 JP JP62113009A patent/JP2629704B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63278492A (en) | 1988-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |