| 摘要 |
PURPOSE: A buzzer is provided to prevent a separation of a buzzer cap and a buzzer body by an external impact by inserting an insertion bar of the buzzer cap into an insertion hole of the buzzer body in the time of combining the buzzer body and the buzzer cap through an ultrasonic wave fusion splice. CONSTITUTION: An insertion hole is built up at each edge of a buzzer body(10) where a magnet is equipped. And, an insertion bar(25) is built up at each edge of a buzzer cap(20) combined with the buzzer body(10). After inserting the insertion bar(25) built up at each edge of the buzzer cap(20) into the insertion hole(15) built up at each edge of the buzzer body(10), the buzzer body(10) is combined with the buzzer cap(20) through an ultrasonic wave fusion splice.
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