JPS625787U - - Google Patents

Info

Publication number
JPS625787U
JPS625787U JP9736685U JP9736685U JPS625787U JP S625787 U JPS625787 U JP S625787U JP 9736685 U JP9736685 U JP 9736685U JP 9736685 U JP9736685 U JP 9736685U JP S625787 U JPS625787 U JP S625787U
Authority
JP
Japan
Prior art keywords
sound guide
piezoelectric
guide part
sounding body
continuous 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.)
Pending
Application number
JP9736685U
Other languages
Japanese (ja)
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 JP9736685U priority Critical patent/JPS625787U/ja
Publication of JPS625787U publication Critical patent/JPS625787U/ja
Pending legal-status Critical Current

Links

Description

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

第１図は本考案に係る圧電イヤホーンの一実施
例の縦断面図、第２図は従来の圧電イヤホーンの
縦断面図、第３図は第１図および第２図の圧電イ
ヤホーンの音圧レベルの周波数特性のグラフであ
る。 １……外装ケース（１ａ……音響部、１ｂ……
蓋）、４……圧電発音体、６……圧電発音体、６
……音導孔、１１……連続型発泡体。 FIG. 1 is a vertical cross-sectional view of an embodiment of a piezoelectric earphone according to the present invention, FIG. 2 is a vertical cross-sectional view of a conventional piezoelectric earphone, and FIG. 3 is a sound pressure level of the piezoelectric earphone shown in FIGS. 1 and 2. It is a graph of the frequency characteristic of. 1...Exterior case (1a...acoustic section, 1b...
lid), 4...Piezoelectric sounding body, 6...Piezoelectric sounding body, 6
... Sound guide hole, 11 ... Continuous foam.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 筒状の音導部が外方に突出してなる外装ケース
の内部に圧電発音体がその外周部にて支持され、
この圧電発音体にて発生された音波が上記音導部
を通して外部に導出されるようにした圧電イヤホ
ーンにおいて、上記音導部を貫通する音導孔の途
中に空気が通過可能な連続した発泡孔を有する連
続型発泡体が挿入されていることを特徴とする圧
電イヤホーン。 A piezoelectric sounding body is supported at its outer periphery inside an exterior case in which a cylindrical sound guide part projects outward.
In the piezoelectric earphone in which the sound waves generated by the piezoelectric sounding body are guided to the outside through the sound guide part, there are continuous foam holes that allow air to pass through the sound guide hole that penetrates the sound guide part. A piezoelectric earphone characterized by having a continuous foam inserted therein.
JP9736685U 1985-06-25 1985-06-25 Pending JPS625787U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9736685U JPS625787U (en) 1985-06-25 1985-06-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9736685U JPS625787U (en) 1985-06-25 1985-06-25

Publications (1)

Publication Number Publication Date
JPS625787U true JPS625787U (en) 1987-01-14

Family

ID=30964220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9736685U Pending JPS625787U (en) 1985-06-25 1985-06-25

Country Status (1)

Country Link
JP (1) JPS625787U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63203096A (en) * 1987-02-18 1988-08-22 Matsushita Electric Ind Co Ltd Headphone
JPH01107294U (en) * 1988-01-12 1989-07-19
JP2012028852A (en) * 2010-07-20 2012-02-09 Wecom Kenkyusho:Kk Ear hole type bone conduction receiver usable as earphone for able-bodied person

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63203096A (en) * 1987-02-18 1988-08-22 Matsushita Electric Ind Co Ltd Headphone
JPH01107294U (en) * 1988-01-12 1989-07-19
JP2012028852A (en) * 2010-07-20 2012-02-09 Wecom Kenkyusho:Kk Ear hole type bone conduction receiver usable as earphone for able-bodied person

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