JPS5933399U - piezoelectric buzzer - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来の圧電ブザーの断面図、第２図に同上の圧
電ブザーの取付状態の一部断面図、第３図、第４図はこ
の考案の圧電ブザーの各実施例を　　　　−示す拡大断
面図である。 １１・・・ケース、１３・・・頂板、１４・・・中空突
出部、１５・・・放音孔、２０・・・周壁。Fig. 1 is a cross-sectional view of a conventional piezoelectric buzzer, Fig. 2 is a partial cross-sectional view of the same piezoelectric buzzer as shown in the attached state, and Figs. 3 and 4 are enlarged views showing each embodiment of the piezoelectric buzzer of this invention. FIG. DESCRIPTION OF SYMBOLS 11... Case, 13... Top plate, 14... Hollow protrusion part, 15... Sound emission hole, 20... Peripheral wall.

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）圧電振動子を取付けたケースの頂板の一部に中空
の突出部を形成し、この突出部の端面以外の部分に放音
孔を設けたことを特徴とする圧電ブザー。(1) A piezoelectric buzzer characterized in that a hollow protrusion is formed in a part of the top plate of a case to which a piezoelectric vibrator is attached, and a sound emitting hole is provided in a portion other than the end surface of this protrusion. （２）放音孔を頂板の突出部近くに設けたことを特徴と
する実用新案登録請求の範囲第１項記載の圧電ブザー。(2) The piezoelectric buzzer according to claim 1, which is a registered utility model, characterized in that the sound emitting hole is provided near the protrusion of the top plate. （３）放音孔を突出部の周壁に設けたことを特徴とする
実用新案登録請求の範囲第１項記載の圧電（４）突出部
の周壁をテーパ状とし、このテーパ状の周壁に放音孔を
設けたことを特徴とする圧電ブザー。(3) A piezoelectric device according to claim 1, which is a utility model registered in which a sound emitting hole is provided in the peripheral wall of the protruding part. (4) The peripheral wall of the protruding part is tapered, and sound is emitted from the tapered peripheral wall. A piezoelectric buzzer characterized by having a sound hole.