JPH0331800U - - Google Patents

Info

Publication number
JPH0331800U
JPH0331800U JP9112189U JP9112189U JPH0331800U JP H0331800 U JPH0331800 U JP H0331800U JP 9112189 U JP9112189 U JP 9112189U JP 9112189 U JP9112189 U JP 9112189U JP H0331800 U JPH0331800 U JP H0331800U
Authority
JP
Japan
Prior art keywords
piezoelectric
vibration
piezoelectric buzzer
frequency
reducing
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
JP9112189U
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 JP9112189U priority Critical patent/JPH0331800U/ja
Publication of JPH0331800U publication Critical patent/JPH0331800U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (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図であり、同
図aは断面図、同図bは平面図、第2図は本考案
の他の実施例を示す平面図、第3図及び第4図は
それぞれ本考案の変形実施例を示す平面図、第5
図は従来例を示す図であり、同図aは断面図、同
図bは平面図である。 1……圧電ブザー、2……基台部、3……開口
端部、4……振動板、5……圧電素子、6,7,
8……金属片(振動の周波数を低減させる部材)

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 有底筒状の基台部と、前記基台部の開口端
    部に載置されかつ前記開口端部の外周より形状が
    大きい振動板と、前記振動板に同心的に接合され
    た圧電素子を有してなる圧電ブザーにおいて、前
    記圧電素子の中心部側と前記振動板の外周端部側
    とに振動の周波数を低減させる部材を設けたこと
    を特徴とする圧電ブザー。 (2) 前記振動の周波数を低減させる部材は、鉄
    、真鍮、はんだ、絶縁体より成る群から選ばれた
    一種である請求項1記載の圧電ブザー。
JP9112189U 1989-08-02 1989-08-02 Pending JPH0331800U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9112189U JPH0331800U (ja) 1989-08-02 1989-08-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9112189U JPH0331800U (ja) 1989-08-02 1989-08-02

Publications (1)

Publication Number Publication Date
JPH0331800U true JPH0331800U (ja) 1991-03-27

Family

ID=31640621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9112189U Pending JPH0331800U (ja) 1989-08-02 1989-08-02

Country Status (1)

Country Link
JP (1) JPH0331800U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001191890A (ja) * 1999-10-28 2001-07-17 Daicel Chem Ind Ltd インフレータ装置
JP2002166818A (ja) * 2000-12-01 2002-06-11 Nippon Kayaku Co Ltd ガス発生器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001191890A (ja) * 1999-10-28 2001-07-17 Daicel Chem Ind Ltd インフレータ装置
JP2002166818A (ja) * 2000-12-01 2002-06-11 Nippon Kayaku Co Ltd ガス発生器
JP4633918B2 (ja) * 2000-12-01 2011-02-16 日本化薬株式会社 ガス発生器

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