JP2524277B2 - Compound speaker - Google Patents
Compound speakerInfo
- Publication number
- JP2524277B2 JP2524277B2 JP4075545A JP7554592A JP2524277B2 JP 2524277 B2 JP2524277 B2 JP 2524277B2 JP 4075545 A JP4075545 A JP 4075545A JP 7554592 A JP7554592 A JP 7554592A JP 2524277 B2 JP2524277 B2 JP 2524277B2
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- ring
- bass
- spacer
- polyurethane foam
- 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
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、低音用スピーカに中
音又は／及び高音用スピーカなどを同軸に組み込んだ複
合スピーカに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite speaker in which a speaker for medium sound and / or a treble sound is coaxially incorporated in a speaker for low sound.
【０００２】[0002]
【従来の技術】低音用スピーカの磁気回路を構成するセ
ンターポールにスペーサを取付けると共に、該スペーサ
に中音又は／及び高音用スピーカなどを同軸に取付けた
複合スピーカは広く使用されている。2. Description of the Related Art A composite speaker in which a spacer is attached to a center pole which constitutes a magnetic circuit of a low-pitched speaker and a mid-tone or / and high-pitched speaker is coaxially attached to the spacer is widely used.
【０００３】かゝる複合スピーカは、通常低音用スピー
カの磁気回路、特に磁気ギャップに塵などが入り込まな
いようにスペーサの外周壁または頂部と低音用スピーカ
の振動板との間にコルゲーションダンパからなる防塵キ
ャップを装着している。Such a composite speaker usually comprises a corrugation damper between the outer wall or top of the spacer and the diaphragm of the bass speaker to prevent dust from entering the magnetic circuit of the bass speaker, especially the magnetic gap. A dustproof cap is attached.
【０００４】しかしながら、前記公知の防塵キャップ
は、低音用振動板の有効輻射面積が小さくなって効率が
低下すると共に、防塵キャップの音響輻射によって低音
の抜けが悪く、低音用振動板の振動が規制されるため低
域特性が劣化するなど実用上解決すべき多くの問題を有
していた。However, in the above-mentioned known dustproof cap, the effective radiation area of the low-pitched vibration plate is reduced to reduce the efficiency, and the low-pitched vibration plate is difficult to escape due to the acoustic radiation of the dustproof cap, and the vibration of the low-pitched vibration plate is restricted. Therefore, there are many problems to be solved for practical use, such as deterioration of low frequency characteristics.
【０００５】そこで、前記問題を解決するため、実開昭
５６−１５２４８１号公報の考案においては、スペーサ
と低音用スピーカのネック部との間に防塵キャップとし
て蛇腹状のダンパを取付け、低音用スピーカの磁気ギャ
ップに対する防塵作用を果たしている。また、実開昭６
４−７４８５号公報においては、前記蛇腹状のダンパー
の代わりにポリウレタンフォームなどで形成された防塵
体を設けている。 Therefore, in order to solve the above problem, in the invention of Japanese Utility Model Laid-Open No. 56-152481, a bellows-like damper is attached as a dustproof cap between the spacer and the neck portion of the bass speaker to attach a bass speaker. It has a dustproof effect on the magnetic gap. Also, the actual development 6
In Japanese Patent Laid-Open No. 4-7485, the bellows-shaped damper is disclosed.
Dustproof formed of polyurethane foam instead of
Has a body.
【０００６】[0006]
【発明が解決すべき課題】実開昭５６−１５２４８１号
公報に記載の複合スピーカの前記蛇腹状のダンパからな
る防塵キャップや、実開昭６４−７４８５号公報に記載
されたウレタンフォームなどからなる防塵体は、低音用
スピーカの振動板の輻射面がなんら制限を受けず、かつ
振動板の振幅もさほどに制限されないという実用上の利
点を有している。しかしながら、これら蛇腹状のダンパ
やウレタンフォームからなる防塵体は、低音用スピーカ
と低音用スピーカ以外のスピーカとで生ずる振動の振幅
に対して必ずしもリニアな動きを示さないという問題が
残されている。 すなわち、防塵体を低音用スピーカのネ
ック部と、スペーサ又は他の中高音用スピーカの磁気回
路部との間に装着した場合、使用によって当該低音用ス
ピーカと他の中高音用スピーカとに生じた振動板の振動
に対して上下方向に直線的（リニア）に追従する傾向を
振幅に対するリニア性といい、このリニア性に乏しい防
塵体はスピーカの音質に歪みを生じたりして音響効果に
好ましくない影響を与える。 前記の実開昭５６−１５２
４８１号公報に記載の蛇腹状のダンパや、実開昭６４−
７４８５号公報に記載の防塵体は、そこそこのリニア性
を有しているものゝ充分なものではなく、また、前者の
蛇腹状のダンパは製造が複雑であり、後者のポリウレタ
ンフォームなどで形成された防塵体は長期の使用におい
て振動板の振幅の繰り返しによって耐久性に難がある。 [Problems to be solved by the invention] Japanese Utility Model Publication No. 56-152481
A dust-proof cap consisting of the bellows-shaped damper of the composite speaker described in JP-A-64-7485.
The dustproof body made of urethane foam or the like has a practical advantage that the radiation surface of the diaphragm of the bass speaker is not limited and the amplitude of the diaphragm is not so limited. However, these bellows-shaped dampers
Dustproof body made or urethane foam, a problem that necessarily do not exhibit a linear movement with respect to the amplitude of the vibration generated by the woofer and the speaker other than woofer
It is left. That is, attach the dustproof body to the bass speaker.
And the magnetic circuit of a spacer or other mid-high range speaker.
When installed between the road section and the bass,
Vibration of the diaphragm generated on the peaker and other loudspeakers for mid-high range
The tendency to follow linearly in the vertical direction
This is called linearity with respect to amplitude.
Dust may distort the sound quality of the speaker and cause acoustic effects.
It has an unfavorable effect. Saikai 56-152
A bellows-shaped damper described in Japanese Patent Publication No. 481 and an actual open sho-64-
The dustproof body described in 7485 has a moderate linearity.
Those who have “not enough” and the former
The bellows-shaped damper is complicated to manufacture, and the latter polyureta
The dustproof body made of foam or the like is not suitable for long-term use.
Durability is difficult due to repeated vibration of the diaphragm.
【０００７】この発明はかゝる現状に鑑み、軟質と硬質
ポリウレタン発泡体からなるリング状分割体の組み合わ
せによる円筒状の防塵部材を低音用スピーカの振動板の
ネック部と低音用スピーカの磁気回路上に設けたスペー
サの頂部もしくは低音用スピーカ以外のスピーカの磁気
回路部との間に介装し、振幅に対してリニアでかつ防塵
効果の高い複合スピーカを提供せんとするものである。In view of such a current situation, the present invention is soft and hard.
A cylindrical dust-proof member made of a combination of ring-shaped split bodies made of polyurethane foam was used to attach the cylindrical dustproof member to the neck of the low-pitched speaker diaphragm and the top of the spacer provided on the magnetic circuit of the low-pitched speaker or the magnetism of speakers other than low-pitched speakers. An object of the present invention is to provide a composite speaker which is interposed between a circuit part and is linear with respect to amplitude and has a high dust-proof effect.
【０００８】[0008]
【課題を解決するための手段】前記目的を達成するた
め、この発明の複合スピーカは、低音用スピーカの磁気
回路上にスペーサを介して低音用スピーカ以外のスピー
カを装着した複合スピーカにおいて、硬質と軟質のポリ
ウレタン発泡体からなる２つのリング状分割体の端部を
結合して前記スペーサの外径よりも大きい径の円筒状の
防塵部材を形成し、該防塵部材の硬質ポリウレタン発泡
体からなるリング状分割体を低音用スピーカの振動板側
となるようにして前記防塵部材を低音用スピーカのネッ
ク部とスペーサ又は低音用スピーカ以外のスピーカの磁
気回路部との間に装着したことを特徴とするものであ
る。Means for Solving the Problems] To achieve the above object, a composite speaker of the present invention, in a composite speaker mounted speakers other than woofer via a spacer on a magnetic circuit of the woofer, and a hard Soft poly
The ends of two ring-shaped split parts made of urethane foam
Combined to form a cylindrical shape having a diameter larger than the outer diameter of the spacer.
Dustproof member is formed, and hard polyurethane foam of the dustproof member is formed.
The ring-shaped divided body is placed on the diaphragm side of the bass speaker.
Thus, the dustproof member is mounted between the neck portion of the bass speaker and the spacer or the magnetic circuit portion of the speaker other than the bass speaker.
【０００９】この発明において、円筒状の防塵部材は、
２つのリング状分割体から構成されるもので、リング状
分割体はそれぞれ硬質と軟質の２種類のポリウレタン発
泡体の組み合わせによって形成されたものである。使用
するポリウレタン発泡体は、一方のリング状分割体を軟
質のポリウレタン発泡体で、他方のリング状分割体を硬
質のポリウレタン発泡体で構成したものであるが、かゝ
る硬さの異なったポリウレタン発泡体は、ポリウレタン
発泡体を得るための原材料の選択によって硬質、軟質の
ポリウレタン発泡体を得ることができるほか、発泡条件
の選択によって小さい気泡による高発泡密度の発泡体で
硬質の、また大きな気泡による低発泡密度の発泡体で軟
質のポリウレタン発泡体を得ることができる。 かゝる２
つのリング状分割体は、両者の端部を接着剤による接着
などで一体的に結合して、スペーサの外径よりも大きい
径の所定の長さの円筒状の防塵部材となし、この防塵部
材の硬質のポリウレタン発泡体が低音用スピーカの振動
板側と なるようにして低音用スピーカのネック部とスペ
ーサ又は低音用スピーカ以外のスピーカの磁気回路部と
の間に接着剤などで装着したものである。 In the present invention, the cylindrical dustproof member is
Those composed of two ring-shaped divided bodies, two types of polyurethane onset of each ring-shaped divided body hard and soft
It has been made form the combination of foam. The polyurethane foam used is made by softening one ring-shaped split body.
Quality polyurethane foam and harden the other ring segment.
Made of high quality polyurethane foam,
Polyurethane foams with different hardness
Hard or soft depending on the choice of raw materials to obtain foam
Polyurethane foam can be obtained and foaming conditions
With the foam of high foaming density due to the selection of small cells
Rigid and low foam density foam with large cells for softness
A quality polyurethane foam can be obtained. 2
The two ring-shaped divided bodies are bonded at their ends with adhesive.
Larger than the outer diameter of the spacer
This is a cylindrical dustproof member with a specified length of diameter.
Vibration of bass speaker due to hard polyurethane foam
Make sure that it is on the plate side and the neck and space of the bass speaker.
Speakers or magnetic circuits of speakers other than bass speakers
It is attached with an adhesive or the like between the two.
【００１０】[0010]
【作用】この発明の複合スピーカは、低音用スピーカの
磁気回路上にスペーサを介して低音用スピーカ以外のス
ピーカを装着した複合スピーカにおいて、低音用スピー
カの磁気ギャップを保護する防塵部材を、硬質と軟質の
２種類のポリウレタン発泡体からなる２つのリング状分
割体の結合によって構成し、リング状分割体の硬質のポ
リウレタン発泡体が低音用スピーカの振動板側となるよ
うにして低音用スピーカのネック部とスペーサ又は低音
用スピーカ以外のスピーカの磁気回路部との間に装着す
ることによって、低音用スピーカと低音用スピーカ以外
のスピーカとの各振動板の振動によって生ずる上下方向
の振幅の下方にかゝる縮む力を前記硬質のポリウレタン
発泡体で調整し、上方に伸びる力を前記軟質のポリウレ
タン発泡体によって調整して振幅に対する優れたリニア
性を確保することができ、低音用スピーカの磁気ギャッ
プを塵などから確実に保護することができる。 According to the composite speaker of the present invention, in a composite speaker in which a speaker other than the bass speaker is mounted on the magnetic circuit of the bass speaker via a spacer, the dustproof member for protecting the magnetic gap of the bass speaker is made hard. Soft
Two ring-shaped parts made of two types of polyurethane foam
The ring-shaped divided body is made up of rigid pieces made by connecting divided pieces.
Polyurethane foam becomes the diaphragm side of the bass speaker.
In this way, the neck of the speaker for bass and the spacer or bass
Install it between the magnetic circuit part of the speaker other than the speaker for
Other than bass speakers and bass speakers
Vertical direction caused by the vibration of each diaphragm with the speaker of
The force of shrinking below the amplitude of the hard polyurethane
Adjusted with the foam, the upward force is adjusted to
Excellent linear to amplitude adjusted by tan foam
Of the bass speaker speaker
It is possible to reliably protect the cover from dust.
【００１１】[0011]
【実施例】以下、この発明の複合スピーカの一実施例を
添付の図面に基づいて詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the composite speaker of the present invention will be described below in detail with reference to the accompanying drawings.
【００１２】図１において、１はセンターポール２を有
するボトムプレート、３はリング状のマグネット、４は
該マグネット３上に固定されるトッププレート、５はネ
ジ６によってセンターポール２の頂面上に固定されたス
ペーサ、７は低音用スピーカのフレーム、８は低音用ス
ピーカの振動板、９は前記スペーサ５の頂部に固定され
た高音用スピーカ、１０は前記振動板８のネック部と高
音用スピーカ９の磁気回路部の裏面との間に介装された
円筒状の防塵部材を示す。なお、図中１３はダンパ、１
４はボイスコイルのボビンを示す。In FIG. 1, 1 is a bottom plate having a center pole 2, 3 is a ring-shaped magnet, 4 is a top plate fixed on the magnet 3, and 5 is a screw 6 on the top surface of the center pole 2. A fixed spacer, 7 is a bass speaker frame, 8 is a bass speaker diaphragm, 9 is a treble speaker fixed to the top of the spacer 5, and 10 is a neck portion of the diaphragm 8 and treble speaker. 9 shows a cylindrical dustproof member interposed between the magnetic circuit unit 9 and the back surface of the magnetic circuit unit. In the figure, 13 is a damper, 1
Reference numeral 4 denotes a voice coil bobbin.
【００１３】前記円筒状の防塵部材１０は、図２に示す
よう２つのリング状分割体１１，１２とから構成される
もので、一方のリング状分割体１１を構成する軟質のポ
リウレタン発泡体として、ウレタン−ＴＳ−Ｇ（株式会
社ブリヂストン製の軟質ポリウレタン発泡体の商品名）
を使用し、他方のリング状分割体１２を構成する硬質の
ポリウレタン発泡体として、ウレタン−ＨＲ２０（株式
会社ブリヂストン製の硬質ポリウレタン発泡体の商品
名）を使用しているもので、各リング状分割体１１，１
２はいずれもその径がスペーサ５の外径よりも大きく形
成し、その長さを全体の円筒の長さを１とした場合それ
ぞれ１／２としたもので、厚さは約３ｍｍである。[0013] The cylindrical dustproof member 10 is intended to be composed of two ring-shaped divided bodies 11 and 12 Metropolitan as shown in FIG. 2, positive soft constituting one of the ring-shaped divided bodies 11
Urethane-TS-G (stock market
Brand name of flexible polyurethane foam manufactured by Bridgestone, Inc.)
Of the other ring-shaped divided body 12
As a polyurethane foam, urethane-HR20 (stock
Products of rigid polyurethane foam manufactured by Bridgestone Company
Name) is used for each ring-shaped divided body 11, 1
In both cases, the diameter of each of the two is larger than the outer diameter of the spacer 5, and the length is halved when the length of the entire cylinder is 1, and the thickness is about 3 mm.
【００１４】かゝる２つのリング状分割体１１と１２と
は、接着剤によって接着して円筒状の防塵部材１０とし
たのち、該防塵部材１０をリング状分割体１２が下方と
なるように位置させた状態でスペーサ５に外嵌し、リン
グ状分割体１２の下端縁を低音用スピーカの振動板８の
ネック部に、リング状分割体１１の上端縁を中音用スピ
ーカ９の磁気回路部の裏面に接着によってそれぞれ固定
するものである。The two ring-shaped divided bodies 11 and 12 are bonded to each other with an adhesive to form a cylindrical dustproof member 10, and the dustproof member 10 is arranged so that the ring-shaped divided body 12 faces downward. While being positioned, the ring-shaped divided body 12 is fitted onto the spacer 5, the lower end edge of the ring-shaped divided body 12 is the neck portion of the diaphragm 8 of the bass speaker, and the upper end edge of the ring-shaped divided body 11 is the magnetic circuit of the mid-range speaker 9. They are fixed to the back surfaces of the parts by adhesion.
【００１５】スペーサ５の外側に装着された防塵部材１
０は、全体がポリウレタン発泡体で成形され、硬質ポリ
ウレタン発泡体によるリング状分割体１２の下端の部分
が低音用のスピーカの振動板８に接し、軟質ポリウレタ
ン発泡体によるリング状分割体１１の上端の部分が高音
用スピーカ９の裏面に接触しているため、防塵部材１０
の下方にかゝる縮む力を前記硬質のポリウレタン発泡体
で調整し、上方に伸びる力を前記軟質のポリウレタン発
泡体によって調整して振幅に対する優れたリニア性を確
保すると共に、低音用スピーカの磁気ギャップ内への塵
などの侵入を確実に防ぐことができる。Dustproof member 1 mounted on the outside of the spacer 5
0 is entirely molded with polyurethane foam, rigid poly
The lower end of the ring-shaped divided body 12 made of urethane foam
Touches the diaphragm 8 of the bass speaker,
The upper end portion of the ring-shaped divided body 11 made of foam is a high-pitched sound.
Since it is in contact with the back surface of the speaker 9 for use in dust protection,
The force of shrinking below the rigid polyurethane foam
Adjust the force with the soft polyurethane
Adjusted by foam to ensure excellent linearity with amplitude
In addition to keeping the temperature, it is possible to reliably prevent dust and the like from entering the magnetic gap of the bass speaker.
【００１６】特に、低音用スピーカの振動板８のネック
部に位置する防塵部材１０は、硬質のポリウレタン発泡
体からなるリング状分割体１２であるため、振動板８の
振幅に確実に追従し、振動板の振幅を妨げることがな
く、上下に対して対称の伸縮性を得ることができる。Particularly, since the dustproof member 10 located at the neck portion of the diaphragm 8 of the bass speaker is the ring-shaped divided body 12 made of hard polyurethane foam, it reliably follows the amplitude of the diaphragm 8. It is possible to obtain vertically symmetrical stretchability without disturbing the amplitude of the diaphragm.
【００１７】前記リング状の分割体を結合して円筒状の
防塵部材とする際、各リング状の分割体を接着剤による
結合でなく、一方の分割体にリング状の係合凸片を一体
的に設け、他方のリング状分割体に前記係合凸片と係合
するリング状凹溝を形成して、両者を接着剤を使用する
ことなく機械的に結合させてもよい。When the ring-shaped divided bodies are joined to form a cylindrical dustproof member, each ring-shaped divided body is not joined by an adhesive, but a ring-shaped engaging convex piece is integrally formed on one of the divided bodies. Alternatively, a ring-shaped concave groove that engages with the engagement convex piece may be formed in the other ring-shaped divided body, and both may be mechanically coupled without using an adhesive.
【００１８】さらに、低音用振動板のネック部やスペー
サの頂部もしくは低音用スピーカ以外のスピーカの磁気
回路部の裏面に防塵部材を簡単かつ容易に取付けるた
め、リング状分割体の当該部位にそれぞれフランジを一
体的に形成することなどはいずれもこの発明の技術的範
囲に含まれるものである。Further, in order to easily and easily attach a dustproof member to the neck portion of the low-pitched vibration plate, the top of the spacer, or the back surface of the magnetic circuit portion of the speaker other than the low-pitched speaker, a flange is provided at each of the corresponding portions of the ring-shaped divided body. And the like are all included in the technical scope of the present invention.
【００１９】[0019]
【発明の効果】この発明の複合スピーカは、低音用スピ
ーカの磁気回路上にスペーサを介して低音用スピーカ以
外のスピーカを装着した複合スピーカにおいて、円筒状
の防塵部材を硬質と軟質のポリウレタン発泡体からなる
２つのリング状分割体で構成し、リング状分割体の硬質
のポリウレタン発泡体のポリウレタン発泡体の部分が低
音用スピーカの振動板側となるようにして低音用スピー
カのネック部とスペーサ又は低音用スピーカ以外のスピ
ーカの磁気回路部との間に装着することによって、低音
用スピーカと低音用スピーカ以外のスピーカとの各振動
板の振動によって生ずる上下方向の振幅の下方にかゝる
縮む力を前記硬質もしくは高発泡密度のポリウレタン発
泡体で調整し、上方に伸びる力を前記軟質もしくは低発
泡密度のポリウレタン発泡体によって調整して歪みのな
い音質を維持しつゝ振幅に対する優れたリニア性を確保
することができ、同時に低音用スピーカの磁気ギャップ
を塵などから確実に保護することができるものである。The composite speaker of the present invention is a composite speaker in which speakers other than the bass speaker are mounted on the magnetic circuit of the bass speaker via a spacer, and the cylindrical dustproof member is made of hard and soft polyurethane foam. Consists of
It is composed of two ring-shaped divided bodies, and the ring-shaped divided body is hard.
The polyurethane foam part of the polyurethane foam is low
Set the speaker for the sound to the diaphragm side,
Speaker neck and spacer or speakers other than the bass speaker.
By installing it between the magnetic circuit of the
Vibration between the speaker for sound and speakers other than the speaker for bass
Below the vertical amplitude caused by the vibration of the plate
The shrinking force is generated from the aforementioned hard or high foam density polyurethane.
Adjust with foam to increase the upward force to the soft or low
Adjusted with polyurethane foam of foam density to maintain distortion-free sound quality and ensure excellent linearity with amplitude
It can be, but at the same time the magnetic gap of the woofer can be reliably protected from dust.
【００２１】かゝる防塵部材は、前記のとおり硬質と軟
質のポリウレタン発泡体で構成したので、上下方向の振
幅に対する相互の緩衝作用によって耐久性が向上し、長
期に亘る使用が可能である。 As described above, such a dustproof member is hard and soft.
Made of high quality polyurethane foam,
Mutual cushioning of width improves durability and length
It can be used over a period of time.
【図１】この発明の複合スピーカの一実施例を示す半截
断面図である。1 is a semi 截 <br/> sectional view showing an embodiment of a composite speaker of the present invention.
【図２】この発明の複合スピーカに使用する防塵部材の
一実施例を示す斜視図である。FIG. 2 is a perspective view showing an embodiment of a dustproof member used in the composite speaker of the present invention.
２ センターポール ５ スペーサ ８ 低音用スピーカの振動板 ９ 高音用スピーカ １０ 防塵部材 １１ リング状分割体 １２ リング状分割体 2 center pole 5 spacer 8 low-frequency speaker diaphragm 9 high-frequency speaker 10 dustproof member 11 ring-shaped divided body 12 ring-shaped divided body
Claims (1)
を介して低音用スピーカ以外のスピーカを装着した複合
スピーカにおいて、硬質と軟質のポリウレタン発泡体か
らなる２つのリング状分割体の端部を結合して前記スペ
ーサの外径よりも大きい径の円筒状の防塵部材を形成
し、該防塵部材の硬質ポリウレタン発泡体からなるリン
グ状分割体を低音用スピーカの振動板側となるようにし
て前記防塵部材を低音用スピーカのネック部とスペーサ
又は低音用スピーカ以外のスピーカの磁気回路部との間
に装着したことを特徴とする複合スピーカ。1. A composite speaker in which a speaker other than the bass speaker is mounted on a magnetic circuit of the bass speaker via a spacer, and is composed of a hard and soft polyurethane foam.
The ends of the two ring-shaped divisions are
Form a cylindrical dustproof member with a diameter larger than the outer diameter of the sensor
The dustproof member is made of rigid polyurethane foam.
Place the segment into the diaphragm side of the bass speaker.
A composite speaker, wherein the dustproof member is mounted between the neck portion of the bass speaker and the spacer or the magnetic circuit portion of the speaker other than the bass speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4075545A JP2524277B2 (en) | 1992-02-26 | 1992-02-26 | Compound speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4075545A JP2524277B2 (en) | 1992-02-26 | 1992-02-26 | Compound speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05244688A JPH05244688A (en) | 1993-09-21 |
| JP2524277B2 true JP2524277B2 (en) | 1996-08-14 |
Family
ID=13579282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4075545A Expired - Fee Related JP2524277B2 (en) | 1992-02-26 | 1992-02-26 | Compound speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524277B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100729272B1 (en) * | 2006-03-22 | 2007-06-15 | 주식회사 진영음향 | One-channel two-way speaker |
| GB2567673B (en) * | 2017-10-20 | 2022-01-26 | Gp Acoustics International Ltd | Loudspeaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS647485U (en) * | 1987-06-30 | 1989-01-17 |
-
1992
- 1992-02-26 JP JP4075545A patent/JP2524277B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05244688A (en) | 1993-09-21 |
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