| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration generating device which has relatively simple constitution and can generate loud ringer sound and vibration. SOLUTION: In a piezoelectric vibrator 2 has piezoelectric elements 4 and 5 stuck on both surfaces of a diaphragm 3, mass members 7 and 8 which amplify the vibration of the piezoelectric vibrator are fixed to end parts of extension parts 3a and 3b provided on both the ends of the diaphragm 3, and a hold member 6 is fixed to fixed parts 3d and 3e of the diaphragm 3 at a part as a node point of the vibration of the vibrator 2. |
