JPH01246995A - Nondirectional loudspeaker device - Google Patents

Nondirectional loudspeaker device

Info

Publication number
JPH01246995A
JPH01246995A JP7493188A JP7493188A JPH01246995A JP H01246995 A JPH01246995 A JP H01246995A JP 7493188 A JP7493188 A JP 7493188A JP 7493188 A JP7493188 A JP 7493188A JP H01246995 A JPH01246995 A JP H01246995A
Authority
JP
Japan
Prior art keywords
units
cabinets
speaker
diaphragm
loudspeaker
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
Application number
JP7493188A
Other languages
Japanese (ja)
Inventor
Masao Fujihira
藤平 正男
Kensaku Abe
健作 阿部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP7493188A priority Critical patent/JPH01246995A/en
Publication of JPH01246995A publication Critical patent/JPH01246995A/en
Pending legal-status Critical Current

Links

Landscapes

  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To mutually utilize the cones of two opposite loudspeaker units faced to each other as reflectors so that the input power sensitivity can be raised and the uniformity can be improved by respectively fitting the two loudspeaker units to two cabinets in a confronted state. CONSTITUTION:Cabinets 11 and 12 are confronted each other at a prescribed interval while they are respectively supported by plural legs 5. The loudspeaker unit 20 fitted to the cabinet 11 has a convex type conical diaphragm 21 and magnetic circuit section 22 and the apex section 31a of the diaphragm 31 of the loudspeaker unit 30 fitted to the cabinet 12 is set to a state where the apex section 31a is faced closely to the apex section 21a of the diaphragm 21 of the unit 20. The acoustic waves from the front faces of the units 20 and 30 are partially radiated directly to the external space through the gap between the cabinets 11 and 12 and nearly uniformly radiated in the horizontal direction after they are respectively reflected by the diaphragms 21 and 31 of the opposite units. Thus excellent nondirectional property is obtained over entire bands.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、=ie向性スピーカ装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an =ie tropic speaker device.

し発明の概要〕 本発明は、無指向性スピーカ装置において、2個のスピ
ーカユニットを、コーンの頂部が互いに対向するように
、2(固のキャビネットにそれぞれ取り付けるごとによ
り、各スピーカユニットが相+側のコーンを相互に反射
器として利用することができて、入力電力感度を向上す
ることができるようにしたものである。
[Summary of the Invention] The present invention provides an omnidirectional speaker device in which two speaker units are installed in two (hard) cabinets so that the tops of their cones face each other, so that each speaker unit is in phase with each other. The cones on both sides can be used as reflectors to improve input power sensitivity.

(従来の技術〕 一般に、スピーカの再生音の指向性は、低周波数領域で
広く、周波数が制くなる程狭くなる。このため、聴取位
置がスピーカの正面から偏る程、高音域のレベルが低下
して、再往Uの品位が劣化する。
(Prior art) In general, the directivity of the sound reproduced by a speaker is wide in the low frequency range, and becomes narrower as the frequency becomes more dominant.For this reason, the more the listening position is away from the front of the speaker, the lower the level of high frequency range. As a result, the quality of the return U deteriorates.

従来、このような問題を解消するものとして、第4図に
示すように、正面に低自用スピーカ(7)が取り付けら
れたキャビネット(11の上向面に商音用スピーカ(2
)を取り付け、断面直角の頂角を有する反射内It (
41をスピーカ(2)に対向させて、水平面内で無指向
性としたスピーカ装置が知られている(例えば実公昭3
6−2304号公報参照)。
Conventionally, in order to solve this problem, as shown in FIG.
), and the internal reflection It (
A speaker device is known in which the speaker 41 is made to face the speaker (2) and is non-directional in a horizontal plane (for example,
(See Publication No. 6-2304).

また、図下は省略するが、フルレンジの単一のスピーカ
ユニットと円錐状の反射器とを対向させた小型の無指向
性スピーカ装置も知られている。
Although not shown in the figure, a small omnidirectional speaker device in which a single full-range speaker unit and a conical reflector are opposed to each other is also known.

〔発明が解決しようとする課題」 ところが、第4図に示すように、轟音用及び低音用のユ
ニットを用いる装置では、両者の再生音がクロスオーバ
ーする中域の再生音の音質が聴取位置によって異なると
いう問題があった。
[Problem to be Solved by the Invention] However, as shown in Fig. 4, in a device that uses a unit for roaring sound and a unit for bass sound, the sound quality of the reproduced sound in the mid-range where the two reproduced sounds cross over depends on the listening position. The problem was that they were different.

この問題は単一のスピーカユニットを使用すれは解消さ
れるが、このような小型の無指向性スピーカ装置では、
入力電力感度が低いという問題があった。
This problem can be solved by using a single speaker unit, but with such a small omnidirectional speaker device,
There was a problem with low input power sensitivity.

かかる点に鑑み、本発明の目的は、入力電力感度が高く
、均一性が良好な無指向性スピーカ装置を提供するとこ
ろにある。
In view of this, an object of the present invention is to provide an omnidirectional speaker device that has high input power sensitivity and good uniformity.

〔課題を解決するための手段〕[Means to solve the problem]

本発明は、それぞれ円錐状の振動板(21)及び(31
)を有する第1及び第2のスピーカユニット(20)及
び(30)を、第1及び第2のキャビネット(11)及
び(12)にそれぞれ取り付けて、振動板の各頂部(2
1a)及び(31a )が互いに対向するように配設し
た無指向性スピーカ装置である。
The present invention provides conical diaphragms (21) and (31), respectively.
) are attached to the first and second cabinets (11) and (12), respectively, so that the first and second speaker units (20) and (30) having
This is an omnidirectional speaker device in which speakers 1a) and 31a are arranged to face each other.

〔作用」 かかる構成によれば、相手側のスピーカコーンが相互に
反射器ともなって、均一な無指向性が得のれると共に、
入力電力感度が向上する。
[Function] According to such a configuration, the speaker cones on the other side also serve as reflectors for each other, and uniform omnidirectionality is obtained.
Improves input power sensitivity.

〔実施例〕〔Example〕

以下、第1図を参照しながら、本発明による無指向性ス
ピーカ装置の一実施例について説明する。
Hereinafter, one embodiment of the omnidirectional speaker device according to the present invention will be described with reference to FIG.

本発明の一実施例の構成を第1図に示す。FIG. 1 shows the configuration of an embodiment of the present invention.

第1図において、(11)及び(12)は同一形状のキ
ャビネットであって、下側のキャビネット(11)の上
板(ilu)と、上側のキャビネット(12)の下&(
lzz)とがそれぞれ複数の支脚(51に支持されて、
所定間隔で対向する。
In FIG. 1, (11) and (12) are cabinets of the same shape, with the upper plate (ilu) of the lower cabinet (11) and the lower &(
lzz) are each supported by a plurality of supporting legs (51,
They face each other at a predetermined interval.

キャビネット(11)の上Fi (llu )に、例え
ば12cmの口径のフルレンジのスピーカユニット(2
0)が上向きに取り付けられる。このスピーカユニット
(20)は、通常とは異なり、凸型円錐状の振動1(2
1)と、磁気回路部(22)とを有する。
For example, a full-range speaker unit (2
0) is mounted upward. This speaker unit (20) is different from normal ones in that it has a convex conical vibration 1 (20).
1) and a magnetic circuit section (22).

(30)はスピーカユニット(20)と同一のスピーカ
ユニットであって、その振動&(31)の頂部(31a
)がスピーカニー1−7ト(20)の振動板(21)の
171部(21a)と近接して対向するように、キャビ
ネット(12)の下板(12N)に取り付けられる。
(30) is the same speaker unit as the speaker unit (20), and its vibration & (31) top (31a)
) is attached to the lower plate (12N) of the cabinet (12) so as to closely face the 171 part (21a) of the diaphragm (21) of the speaker knee 1-7 (20).

この振動板(21)及び(31)の素材としては、−船
釣に、紙を主成分としたものが用いられるが、それぞれ
の頂部(キャンプ)(21a)及び(31a)は、通常
の球面状のものとは異なり、図示のように、振動板(2
1)及び(31)の母線を廷長したような円錐状とされ
、また、その素材としては、例えば、マイカエポキシコ
ーン、カーボンファイバコーンまたはアルミニウム等の
ように、音波に対する反射率の高いものが用いられる。
As for the material of these diaphragms (21) and (31), - for boat fishing, a material mainly composed of paper is used, but the tops (camps) (21a) and (31a) of each are usually spherical. Unlike the diaphragm (2
It has a conical shape with the generatrix lines of 1) and (31) lengthened, and its material is one that has a high reflectivity for sound waves, such as mica epoxy cone, carbon fiber cone, or aluminum. used.

これにより、スピーカユニット(20)及び(30)の
前面からの音波は、その一部がキャビネット(11)及
び(12)の間隙から直接に外6B空間へ放射されると
共に、互いに相手側の凸型の振動板(21)及び(31
)で反射されて、はぼ水平方向に、はぼ均一に放射され
る。
As a result, a part of the sound waves from the front surfaces of the speaker units (20) and (30) are radiated directly into the outer space 6B from the gap between the cabinets (11) and (12), and also type diaphragm (21) and (31
) and is emitted almost horizontally and almost uniformly.

前述のように、画題動板(21)及び(31)のキャッ
プ(21a)及び(31a)がそれぞれ商反射材で形成
されているので、画題動板(21)及び(31)のピス
トン振動9148を超える高域で、主としてキャップ(
21a)及び(31a)の近傍からそれぞれ放射される
音波は、互いに相手側のキャンプによって高率で反射さ
れ、全帯域にわたって、良好な無指向性が得られる。
As mentioned above, since the caps (21a) and (31a) of the picture video plates (21) and (31) are made of a reflective material, the piston vibrations of the picture video plates (21) and (31) 9148 In the high range exceeding , mainly the cap (
The sound waves radiated from the vicinity of 21a) and (31a) are reflected at a high rate by the camps on the opposite side, and good omnidirectionality is obtained over the entire band.

勿論、振動板(21)及び(31)の全体を前述のよう
な高反射性の素材で形成してもよい。
Of course, the entire diaphragms (21) and (31) may be made of a highly reflective material as described above.

また、本実施例では、図示を省略した増幅器の出力電力
Woが両スピーカユニット(20)及び(30)に等分
されるので、個々のスピーカユニット(20)または(
30)からの出力音圧レベルは、同じ出力電力Woがこ
のスピーカユニット(20)。
Furthermore, in this embodiment, since the output power Wo of the amplifier (not shown) is equally divided between both the speaker units (20) and (30), the individual speaker units (20) or (
The output sound pressure level from the speaker unit (20) is the same as the output power Wo from the speaker unit (20).

(30)のいずれか一方のみに供給された場合に比べて
3dB低下する。しかしながら、−スピーカユニット(
20)及び(30)を同極性で駆動する場合、総合出力
音圧レベルは1個のスピーカユニットのそれよりも約6
dB大きくなるので、本実施例のスピーカ装置の総合出
力音圧レベルは、同一電力W。
(30) is reduced by 3 dB compared to the case where only one of them is supplied. However, - the speaker unit (
20) and (30) with the same polarity, the total output sound pressure level is approximately 6
Since the output sound pressure level is increased by dB, the total output sound pressure level of the speaker device of this embodiment is the same power W.

で単一のスピーカユニットを駆動した場合に比べて約3
dB大きくなる。換言すれば、スピーカ装置の入力電力
感度が約3dB上昇する。
approx. 3 compared to driving a single speaker unit with
Increases by dB. In other words, the input power sensitivity of the speaker device increases by about 3 dB.

なお、スピーカユニット(20)及び(30)の1辰り
J仮(21)及び(31)は、必ずしも1tlr面が直
角であることを要しない。また、断面を適宜に彎曲させ
て放射音の垂直指向性を変化させることもできる。
Note that the 1tlr plane of the one-channel J tentative (21) and (31) of the speaker units (20) and (30) does not necessarily have to be at right angles. Further, the vertical directivity of the radiated sound can be changed by appropriately curving the cross section.

次に、第2図を参照しながら、本発明の他の実施例につ
いて説明する。
Next, another embodiment of the present invention will be described with reference to FIG.

本発明の他の実施例の構成を第2図にボす。この第2図
において、前出第1図に対応する部分には同一の符号を
(−j’ して重複説明を省略する。
The structure of another embodiment of the present invention is shown in FIG. In this FIG. 2, parts corresponding to those in FIG.

第2図において、(40)及び(50)は通常のフルレ
ンジのスピーカユニットであって、例えば12cmの口
径の凹型円錐状撮動板(41)及び(51)を有し、そ
の■1部(キャップ)(41a)及び(51a )が両
スピーカユニット(40)及び(50)の磁気回路部(
42)及び(52)を挟んで対向するように、通常とは
逆に、振動板(41)及び(51)の正面をキャビネッ
ト(11)及び(12)の内部に向けて、それぞれの上
坂(flu)、及びト&(12β)に取り付けられる。
In FIG. 2, (40) and (50) are normal full-range speaker units, which have, for example, concave conical pickup plates (41) and (51) with a diameter of 12 cm. The caps) (41a) and (51a) are the magnetic circuit parts (
42) and (52), opposite to the usual case, with the front faces of the diaphragms (41) and (51) facing the inside of the cabinets (11) and (12), respectively, on the upper slopes ( flu), and t&(12β).

これにより、スピーカユニット(40)及び(50)の
背面からの前渡は、各フレーム(43)及び(53)の
透孔(43a)及び(53a)を辿り、その一部がキャ
ビネット(11)及び(12)の間隙から直接に外部空
間へ放射されると共に、互いに相手側の凹型の振動板(
4I)及び(51)のH面で反射されて、はぼ水平方向
に、はぼ均一に放射される。
As a result, the forward passage from the rear side of the speaker units (40) and (50) follows the through holes (43a) and (53a) of each frame (43) and (53), and a portion thereof is connected to the cabinet (11). and (12) directly into the external space, and the concave diaphragms (
4I) and (51), and is radiated almost horizontally and almost uniformly.

また、第1図の実施例と同様に、入力電力感度が約3d
B上昇する。
Also, similar to the embodiment shown in FIG. 1, the input power sensitivity is approximately 3d.
B rises.

次に、第3図を参照しながら、本発明の史に他の実施例
について説明する。
Next, other embodiments of the present invention will be described with reference to FIG.

本発明の更に他の実施例の構成を第3図にポす。The configuration of yet another embodiment of the present invention is shown in FIG.

この第3図において、前出第1図に対)、シする部分に
は同一の符号を付して車蝮説明を省略する。
In FIG. 3, corresponding parts are given the same reference numerals as in FIG.

第3図において、(60)はトウイータであって、例え
ば2.5cmの口径の凸型円錐状振動#1(61)を有
し、フルレンジのスピーカユニット(20)の凸型円錐
状振動板(21)の1頁部(キャンプ)(21a)と対
向するように、薄型の上側キャビネ・ノド(13)の下
坂(13/)に取り付けられる。(14)は円錐台状の
反射器であって、その母線がトウイータ(60)の円錐
状振動板(6I)の母線の延長上に位置するように、磁
気回路部(62)を覆って、下坂(131)に取り付け
られる。
In FIG. 3, (60) is a tweeter, which has a convex conical vibration #1 (61) with a diameter of, for example, 2.5 cm, and a convex conical vibration plate (61) of the full range speaker unit (20). It is attached to the lower slope (13/) of the thin upper cabinet throat (13) so as to face the first page part (camp) (21a) of 21). (14) is a truncated conical reflector, which covers the magnetic circuit section (62) so that its generatrix is located on an extension of the generatrix of the conical diaphragm (6I) of the tweeter (60); It is attached to the lower slope (131).

これにより、スピーカユニット(20)及びトウイータ
(60)の前面からの音波は、その一部がキャビネッ1
−(11)及び(13)の間隙から直接に外部空間へ放
射されると共に、中低音w4j13iでは、反射器(1
4)で反射されて、はぼ水平方向に、はぼ均一に放射さ
れる。
As a result, some of the sound waves from the front of the speaker unit (20) and tweeter (60) are transmitted to the cabinet 1.
- It is directly radiated to the external space from the gap between (11) and (13), and in the mid-bass w4j13i, the reflector (1
4) and is emitted almost uniformly in the horizontal direction.

また、仙台領域では、互いに相手側の凸型振動板(21
)及び(61)で反射されて、はぼ水平方向に、はぼ均
一に放射され、この領域の人力電力感度が約3dB上昇
して、フルレンジのスビーカユニフl−(20)の高域
周波数特性力(?ili償される。
In addition, in the Sendai area, the convex diaphragms (21
) and (61), and is radiated almost horizontally and almost uniformly, and the human power sensitivity in this area increases by about 3 dB, and the high frequency characteristic power of the full range subica unif l-(20) (?ili will be compensated.

〔発明の効果」 以上詳述のように、本発明によれば、2flAIのスピ
ーカユニットを、互いに対向するように、2(l111
のキャビネットにそれぞれ取り付けるようにしたので、
各スピーカユニットが相手側のコーンを相JJ−に反射
器として利用することができて、入力電力感度が向く、
均一性の良好な無指向性スピーカ装置が得られる。
[Effects of the Invention] As described in detail above, according to the present invention, the 2 fl AI speaker units are arranged so as to face each other.
Since I installed it in each cabinet,
Each speaker unit can use the cone of the other party as a reflector for phase JJ-, improving input power sensitivity.
An omnidirectional speaker device with good uniformity can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明による無指向性スピーカ装置の一実施例
の構成を示す縦断面図、第2図及び第3図はそれぞれ本
発明の他の実施例の構成を示す縦断面図、第4図は従来
の無指向性スピーカ装置の構成例を示す縦断面図である
。 (11) 、  (12) 、  (13)はキャビネ
ット、(14)は反射器、(20) 、  (30) 
、  (40) 、  (50)はスピーカユニット、
(りはトウイータ、(21) 、  (31) 。 (41) 、  (51) 、  (61)は撮動板で
ある。
FIG. 1 is a vertical cross-sectional view showing the configuration of one embodiment of an omnidirectional speaker device according to the present invention, FIGS. 2 and 3 are vertical cross-sectional views showing the configuration of another embodiment of the present invention, and FIG. The figure is a longitudinal sectional view showing an example of the configuration of a conventional omnidirectional speaker device. (11), (12), (13) are cabinets, (14) are reflectors, (20), (30)
, (40) and (50) are speaker units,
(The ri is a toweeter, (21), (31). (41), (51), (61) are imaging plates.

Claims (1)

【特許請求の範囲】 それぞれ円錐状の振動板を有する第1及び第2のスピー
カユニットを、 第1及び第2のキャビネットにそれぞれ取り付けて、上
記振動板の各頂部が互いに対向するように配設したこと
を特徴とする無指向性スピーカ装置。
[Claims] First and second speaker units each having a conical diaphragm are attached to the first and second cabinets, respectively, and arranged so that the tops of the diaphragms face each other. An omnidirectional speaker device characterized by:
JP7493188A 1988-03-29 1988-03-29 Nondirectional loudspeaker device Pending JPH01246995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7493188A JPH01246995A (en) 1988-03-29 1988-03-29 Nondirectional loudspeaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7493188A JPH01246995A (en) 1988-03-29 1988-03-29 Nondirectional loudspeaker device

Publications (1)

Publication Number Publication Date
JPH01246995A true JPH01246995A (en) 1989-10-02

Family

ID=13561593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7493188A Pending JPH01246995A (en) 1988-03-29 1988-03-29 Nondirectional loudspeaker device

Country Status (1)

Country Link
JP (1) JPH01246995A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260899A (en) * 1989-03-31 1990-10-23 Kenwood Corp Nondirectional acoustic transducer and speaker system
EP0667730A1 (en) * 1994-02-14 1995-08-16 Karl Mantinger Electrodynamic transducer of polar type with vibratory body
WO2011010743A1 (en) * 2009-07-23 2011-01-27 ソニー株式会社 Speaker device and method for forming speaker device
JP2018082413A (en) * 2016-11-19 2018-05-24 愛弥 佐藤 Speaker system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260899A (en) * 1989-03-31 1990-10-23 Kenwood Corp Nondirectional acoustic transducer and speaker system
EP0667730A1 (en) * 1994-02-14 1995-08-16 Karl Mantinger Electrodynamic transducer of polar type with vibratory body
WO2011010743A1 (en) * 2009-07-23 2011-01-27 ソニー株式会社 Speaker device and method for forming speaker device
JP2018082413A (en) * 2016-11-19 2018-05-24 愛弥 佐藤 Speaker system

Similar Documents

Publication Publication Date Title
US6257365B1 (en) Cone reflector/coupler speaker system and method
US3720787A (en) Omni-directional globular speaker system
US3976838A (en) High fidelity sound reproduction system
JP2673002B2 (en) Speaker system
US5815589A (en) Push-pull transmission line loudspeaker
CN101627640B (en) Loudspeaker apparatus for radiating acoustic waves in a hemisphere
US3329235A (en) Loudspeaker system
US4553628A (en) Speaker system
US4850452A (en) Loudspeaker structure
US4266092A (en) Loudspeaker system with broad image source
US7590257B1 (en) Axially propagating horn array for a loudspeaker
US20050175208A1 (en) Audio speaker system employing an annular gasket separating a horn waveguide from a sound reproducing membrane
US3814857A (en) Two-way loudspeaker system with two tandem-connected high-range speakers
US3933219A (en) Speaker system
WO1998007297A1 (en) Line array
JP2010504655A5 (en)
US10863265B2 (en) Audio loudspeaker array and related methods
JPH01246995A (en) Nondirectional loudspeaker device
EP0560576B1 (en) Speaker system using a plurality of speaker units for directivity control
US3645355A (en) Loudspeaker system
US5105906A (en) Sound reproduction speaker with improved directional characteristics
US4657107A (en) Loudspeaker cabinet
JPS6121917Y2 (en)
US11985475B2 (en) Audio loudspeaker array and related methods
KR19990062399A (en) speaker