JPS59140800A - Portable loudspeaker - Google Patents

Portable loudspeaker

Info

Publication number
JPS59140800A
JPS59140800A JP1520883A JP1520883A JPS59140800A JP S59140800 A JPS59140800 A JP S59140800A JP 1520883 A JP1520883 A JP 1520883A JP 1520883 A JP1520883 A JP 1520883A JP S59140800 A JPS59140800 A JP S59140800A
Authority
JP
Japan
Prior art keywords
voice
speaker
corn
reflecting plate
cord
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
JP1520883A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ito
博之 伊藤
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1520883A priority Critical patent/JPS59140800A/en
Publication of JPS59140800A publication Critical patent/JPS59140800A/en
Pending legal-status Critical Current

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
    • H04R27/00—Public address systems
    • H04R27/04—Electric megaphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To constitute a device which sends out a voice in every direction while both hands are free by fitting the voice corn of a speaker opposite to a reflecting plate provided to the top part of a cap. CONSTITUTION:The reflecting plate 8 is provided to the top part of the cap. A speaker driving coil 6 and the voice corn 7 are fitted opposite to the reflecting plate 8. A talker's voice inputted to a microphone 2 is inputted to the speaker driving coil 6 through a cord 3, amplifier 4, and cord 5 to oscillate the voice corn 7. Thus, the talker can speak with both hands free and the voice output of the speaker is nondirectional and outputted in every direction to speak to spectators in every direction.

Description

【発明の詳細な説明】 この発明は指向性を持たない携帯拡声器に関する。[Detailed description of the invention] This invention relates to a portable loudspeaker without directivity.

名所・行楽地などの案内人のように多数の人を相手にし
て肉声で説明を行うときは、その説明は正対する人を中
心とした一部の人にはよく聞こえるが、背後にいる人々
には十分には聞きとり難いものである。とれは肉声には
指向性があるから致し方ないところである。そのだめ、
説明などを多数の人に徹底しようとする時には、従来は
ハンドマイクで拡声しているが、その場合にもハンドマ
イクの指向性のため同様の欠点があった。その上ハンド
マイク保持のため少なくも片手は拘束されて七１うこと
になる。When giving an explanation in your own voice to a large number of people, such as a guide to a famous place or recreational area, the explanation may be audible to some people, especially the person directly facing you, but the people behind you may be able to hear it clearly. It is difficult to hear it fully. This is something that can't be helped because the real voice has directionality. That's no good,
Conventionally, when trying to thoroughly explain an explanation to a large number of people, a handheld microphone is used to amplify the sound, but this also has the same drawbacks due to the handheld microphone's directivity. On top of that, at least one hand is tied up to hold the handheld microphone.

この発明は上記の問題点を解消するものである。This invention solves the above problems.

本発明の実施例を図面を参照して説明する。Embodiments of the present invention will be described with reference to the drawings.

反射板８は、頂部がほぼ円錐様になっているが、全体と
して帽子の形になっていて、帽子の役目を果すこともで
きる。反射板８には、スピーカーの駆動コイｌしが固着
してあゆ、ボイスコーン７を駆動する。説明者（使用者
）の声はマイクロホン２・コード３を経てアンプ４に入
力される。　　　　　　　　　　　アンプ４よりの出力
は、コード５を経てスピーカーの駆動コイル６に入り、
ボイスコーン７を駆動し音声化され、その音声は反射板
８を介し、説明者（使用者）の四囲にわたって同様に放
送される。Although the top of the reflector plate 8 is approximately conical, the reflector plate 8 has a hat shape as a whole and can also function as a hat. A speaker drive coil is fixed to the reflection plate 8 and drives the voice cone 7. The voice of the explainer (user) is input to an amplifier 4 via a microphone 2 and a cord 3. The output from the amplifier 4 passes through the cord 5 and enters the speaker drive coil 6.
The voice cone 7 is driven to make a sound, and the sound is similarly broadcast to all four areas around the explainer (user) via the reflector 8.

この形式の場合、ボイスコーンと反射板の上下位置を逆
にしても同様の効果が得られる。In the case of this type, the same effect can be obtained even if the vertical positions of the voice cone and the reflector are reversed.

電源トマイクロホンおよびアンプまたはそのいずれかを
、帽子部分と一体にしても別な部分としても、本発明の
期待する効果には影響はない。Whether the power source microphone and/or amplifier are integrated with the hat portion or separate from the cap portion does not affect the expected effects of the present invention.

また頭上以外のところに保持したり、指向性をもったス
ピーカーを複数個用いても同様の効果が得られる。一 本発明の携帯拡声器を用いれば、説明者がどの方向を向
いていても、壕だ聴衆は説明者の前方に位置しなくても
、四囲どこにいても、その説明を等しく聞きとることが
できるので、説明者は任意の方向に向いだままで、四囲
にいる聴衆に説明を同様に十分に徹底することがそきる
。Similar effects can also be obtained by holding the device somewhere other than overhead, or by using multiple directional speakers. By using the portable loudspeaker of the present invention, no matter which direction the explainer is facing, the audience can equally hear the explanation regardless of whether they are located in front of the explainer or wherever they are. This allows the explainer to remain facing in any direction and give an equally thorough explanation to the surrounding audience.

更にマイク２を反射板８に固定すれば、両手が自由に使
用できるようになる。Furthermore, by fixing the microphone 2 to the reflector 8, both hands can be used freely.

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

第１図はこの発明の構成要領を示すもので、主要部は立
面図（一部切断）にて示しである。 ５、−・・・・・・・・コード 奮　Ｉ　圓FIG. 1 shows the basic structure of the present invention, and the main parts are shown in an elevational view (partially cut away). 5, -・・・・・・Code Struggle I En

Claims (1)

【特許請求の範囲】[Claims] 帽子状反射板（８）に向かい合ってスピーカーのボイス
コーン（ηを設けたことを特徴とする携帯拡声器。A portable loudspeaker characterized by having a speaker voice cone (η) facing a hat-shaped reflector (8).
JP1520883A 1983-01-31 1983-01-31 Portable loudspeaker Pending JPS59140800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1520883A JPS59140800A (en) 1983-01-31 1983-01-31 Portable loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1520883A JPS59140800A (en) 1983-01-31 1983-01-31 Portable loudspeaker

Publications (1)

Publication Number Publication Date
JPS59140800A true JPS59140800A (en) 1984-08-13

Family

ID=11882449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1520883A Pending JPS59140800A (en) 1983-01-31 1983-01-31 Portable loudspeaker

Country Status (1)

Country Link
JP (1) JPS59140800A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0567929U (en) * 1992-02-14 1993-09-10 株式会社三協精機製作所 Cylinder device for magnetic recording / reproducing device
GB2349035A (en) * 1999-04-14 2000-10-18 Robert Leonard Carpenter Hands free megaphone

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0567929U (en) * 1992-02-14 1993-09-10 株式会社三協精機製作所 Cylinder device for magnetic recording / reproducing device
GB2349035A (en) * 1999-04-14 2000-10-18 Robert Leonard Carpenter Hands free megaphone
GB2349035B (en) * 1999-04-14 2003-12-10 Robert Leonard Carpenter Hands-free megaphone

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