| 摘要 |
<p>Provided is a piezoelectric actuator, wherein friction and abrasion do not tend to occur. The piezoelectric actuator is characterized in being provided with: a first piezoelectric device (23) that is installed between a base member (11) and a moving member (12), and that is capable of being expanded and contracted in a direction in which the first piezoelectric device (23) intersects with a first face (11a) that opposes the aforementioned moving member (12) of the aforementioned base member (11); a second piezoelectric device (24) that is installed between the aforementioned first piezoelectric device (23) and the aforementioned moving member (12), and that is capable of being expanded and contracted in a direction different from the aforementioned intersecting direction; transfer members (21, 22) that are installed between the aforementioned first piezoelectric device (23) and the aforementioned moving member (12), has a through hole piercing through in the aforementioned intersecting direction, has the amount of expansion and contraction of the aforementioned first piezoelectric device (23) and the aforementioned second piezoelectric device (24) transferred, and also transfers the driving force to the aforementioned moving member (12); and a supporting member (11b) that pierces through the aforementioned through hole, and that can support the aforementioned moving member.</p> |
