JPS63156196U - - Google Patents

Info

Publication number
JPS63156196U
JPS63156196U JP4930187U JP4930187U JPS63156196U JP S63156196 U JPS63156196 U JP S63156196U JP 4930187 U JP4930187 U JP 4930187U JP 4930187 U JP4930187 U JP 4930187U JP S63156196 U JPS63156196 U JP S63156196U
Authority
JP
Japan
Prior art keywords
duct
center
diaphragm
communicates
magnetic circuit
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
JP4930187U
Other languages
English (en)
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 filed Critical
Priority to JP4930187U priority Critical patent/JPS63156196U/ja
Publication of JPS63156196U publication Critical patent/JPS63156196U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Headphones And Earphones (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示すインナイヤー
型ヘツドホンの断面図、第２図はインナイヤー型
ヘツドホンの周波数特性図、第３図は従来例を示
すインナイヤー型ヘツドホンの断面図である。 １０は振動板、１１は磁気回路、１６はセンタ
ーダクト、１７はフレーム、１８はフレームダク
ト、１８ａは開口部である。

Claims (1)

    【実用新案登録請求の範囲】
  1. 振動板の後方に配設された磁気回路の略中央部
    に、この磁気回路の前方側空間と後方側空間とを
    連通するセンターダクトを形成する一方、上記磁
    気回路の背面および周面に対し所定の間隙をおい
    てこれらを包囲するフレームを配設して上記セン
    ターダクトと連通し且つ上記振動板の前方と同方
    向に開口するフレームダクトを形成したことを特
    徴とするインナイヤー型ヘツドホン。
JP4930187U 1987-03-31 1987-03-31 Pending JPS63156196U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4930187U JPS63156196U (ja) 1987-03-31 1987-03-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4930187U JPS63156196U (ja) 1987-03-31 1987-03-31

Publications (1)

Publication Number Publication Date
JPS63156196U true JPS63156196U (ja) 1988-10-13

Family

ID=30871624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4930187U Pending JPS63156196U (ja) 1987-03-31 1987-03-31

Country Status (1)

Country Link
JP (1) JPS63156196U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006287674A (ja) * 2005-04-01 2006-10-19 Victor Co Of Japan Ltd バスレフ型ヘッドホン
KR100740003B1 (ko) * 2004-11-19 2007-07-16 양호준 스피커

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726466U (ja) * 1980-07-21 1982-02-10
JPS5776994A (en) * 1980-10-31 1982-05-14 Sony Corp Electroacoustic transducer
JPS60142699A (ja) * 1983-12-28 1985-07-27 Matsushita Electric Ind Co Ltd ダイナミツク型レシ−バ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726466U (ja) * 1980-07-21 1982-02-10
JPS5776994A (en) * 1980-10-31 1982-05-14 Sony Corp Electroacoustic transducer
JPS60142699A (ja) * 1983-12-28 1985-07-27 Matsushita Electric Ind Co Ltd ダイナミツク型レシ−バ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100740003B1 (ko) * 2004-11-19 2007-07-16 양호준 스피커
JP2006287674A (ja) * 2005-04-01 2006-10-19 Victor Co Of Japan Ltd バスレフ型ヘッドホン

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