| 摘要 |
<p>There are provided a piezoelectric actuator whose design does not become difficult, and in which an impact resistance can be greatly improved without incurring a decrease in a drive efficiency, and an electronic equipment having possessed the same. When a piezoelectric actuator 31 has been incorporated to a main plate 14, an arm part 513 of a vibration body 50 is disposed through interstices SP1, SP2 of predetermine dimensions between it and a protrusion part 144. Only by causing the interstices SP1, SP2 like these to intervene, at a drive time, notwithstanding the fact that a free end part FR is in a free state in these interstices SP1, SP2, since a vibration part 511 is captured by the protrusion part 144 in a free end part FR side when an external impact has been exerted, it is possible to prevent the vibration part 511 from moving while exceeding the dimensions of the interstices. By this, it is possible to easily and greatly improve the impact resistance corresponding to a fall impact and the like without incurring the decrease in the drive efficiency, and it is possible to solve together problems relating to the drive efficiency and the impact resistance, which are usually difficult to be compatible.</p> |
