Title:
ASSEMBLY OF PIEZOELECTRIC BUZZER
Document Type and Number:
Japanese Patent JPH04289896
Kind Code:
A
Abstract:
PURPOSE: To reduce the cost of raw material of a metal case, reduce the final external size easily and obtain an assembly method for a piezoelectric buzzer free from poor sound pressure.
CONSTITUTION: In a method of assembling a pie 20 electric buzzer comprising a metal plate 2 on which a piezoelectric sounding body 1 is provided and a pair of metal cases 3 and 4 surrounding both front and rear surface of the metal plate 2 are provided, the outer peripheries of the metal cases 3 and 4 are arranged in positions opposed to each other on both the front and back sides of the metal plate 2 respectively by sandwiching outer peripheries of the metal plate 2. Then these outer peripheries are connected to each other by resistance welding.
Inventors:
OKUHARA SHIZUO
SEGAWA OSAMU
NAKADERA KAZUYA
SEGAWA OSAMU
NAKADERA KAZUYA
Application Number:
JP5437791A
Publication Date:
October 14, 1992
Filing Date:
March 19, 1991
Export Citation:
Assignee:
MURATA MANUFACTURING CO
International Classes:
B23K11/00; G10K9/12; G10K9/122; H04R17/00; H04R31/00; B23K101/12; (IPC1-7): B23K11/00; B23K101/12; G10K9/12; H04R17/00; H04R31/00
Attorney, Agent or Firm:
Kazuhide Okada