JPS62127596U - - Google Patents

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Publication number
JPS62127596U
JPS62127596U JP1591586U JP1591586U JPS62127596U JP S62127596 U JPS62127596 U JP S62127596U JP 1591586 U JP1591586 U JP 1591586U JP 1591586 U JP1591586 U JP 1591586U JP S62127596 U JPS62127596 U JP S62127596U
Authority
JP
Japan
Prior art keywords
diaphragm
selection means
driving frequency
alarm clock
driving
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.)
Granted
Application number
JP1591586U
Other languages
Japanese (ja)
Other versions
JPH0447754Y2 (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 JP1986015915U priority Critical patent/JPH0447754Y2/ja
Publication of JPS62127596U publication Critical patent/JPS62127596U/ja
Application granted granted Critical
Publication of JPH0447754Y2 publication Critical patent/JPH0447754Y2/ja
Expired legal-status Critical Current

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  • Electromechanical Clocks (AREA)

Description

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

第１図は本考案の一実施例を示した断面図、第
２図は第１図の他の動作態様を示した断面図、第
３図及び第４図はそれぞれ音圧―周波数特性を示
した特性図である。 １……振動板、２……圧電振動子、４……押え
部材。 Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. 2 is a sectional view showing another operating mode of Fig. 1, and Figs. 3 and 4 respectively show sound pressure-frequency characteristics. FIG. 1... Vibration plate, 2... Piezoelectric vibrator, 4... Pressing member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧電または電磁的に振動板を駆動することによ
つてアラーム音を登生するアラーム時計において
、駆動周波数を複数種類の中から選択する選択手
段と、この選択手段によつて選択された駆動周波
数に応じて上記振動板の有効外径を変化させる手
段とを具備したことを特徴とするアラーム時計。 In an alarm clock that generates an alarm sound by piezoelectrically or electromagnetically driving a diaphragm, there is provided a selection means for selecting a driving frequency from among a plurality of types, and a driving frequency selected by the selection means. An alarm clock comprising means for changing the effective outer diameter of the diaphragm accordingly.
JP1986015915U 1986-02-06 1986-02-06 Expired JPH0447754Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986015915U JPH0447754Y2 (en) 1986-02-06 1986-02-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986015915U JPH0447754Y2 (en) 1986-02-06 1986-02-06

Publications (2)

Publication Number Publication Date
JPS62127596U true JPS62127596U (en) 1987-08-13
JPH0447754Y2 JPH0447754Y2 (en) 1992-11-11

Family

ID=30807289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986015915U Expired JPH0447754Y2 (en) 1986-02-06 1986-02-06

Country Status (1)

Country Link
JP (1) JPH0447754Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088801B1 (en) * 2006-11-09 2014-05-07 NEC Corporation Piezoelectric speaker and electronic apparatus with piezoelectric speaker

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130400U (en) * 1981-02-04 1982-08-13
JPS6142200U (en) * 1984-08-22 1986-03-18 株式会社田村電機製作所 piezoelectric vibrator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156706A (en) * 1978-01-16 1979-05-29 The Marley Cooling Tower Company Fan cylinder having invisible eased inlet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130400U (en) * 1981-02-04 1982-08-13
JPS6142200U (en) * 1984-08-22 1986-03-18 株式会社田村電機製作所 piezoelectric vibrator

Also Published As

Publication number Publication date
JPH0447754Y2 (en) 1992-11-11

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