PIEZOELECTRIC VIBRATION DEVICE

摘要

Provided is a piezoelectric vibration device with vibrations that are easily sensed by a user and a short dissipation time for vibration. A vibration plate (1) is affixed on one end (1a). A piezoelectric oscillator (3) is formed on top of the vibration plate (1). An attachment holder (9) is affixed to the one end (1a) of the vibration plate (1) such that a terminal part (3d) of the piezoelectric oscillator (3) is left. A weight member (5) is attached to the other end (1c) of the vibration plate (1). The weight member (5) has a greater rigidity than the vibration plate (1). The natural frequency for the weight member (5) is set at three or more times the natural frequency of the vibration plate (1) on which the piezoelectric oscillator (3) is formed. The weight member (5) has a base part (5c) having a contact surface (5b) that is in contact with the vibration plate (1) and a main body part (5d) provided integrally with the base part (5c) and extending parallel to the vibration plate (1). An inclined surface (5f) is formed on a surface (5e) of the main body part (5d) that faces the vibration plate (1).