Device for magnifying displacement of piezoelectric element or the like.

摘要

A device for magnifying displacement of a piezoelectric element (72) adapted to be displaced by application of voltage thereto, comprising a frame (62) extending substantially parallel to a direction of displacement of the piezoelectric element (72); a movable member (82) fixed to one end of the piezoelectric element (72) with respect to the direction of displacement; a first mount surface formed on said frame (62) and extending substantially parallel to the direction of displacement; a second mount surface formed on the movable member (82) and extending substantially parallel to the direction of displacement, which second mount surface is opposed to the first mount surface; a first leaf spring (84) mounted at its one end portion on the first mount surface and extending substantially parallel to the direction of displacement; a second leaf (86) spring mounted at its one end portion on the second mount surface and extending substantially parallel to the direction of displacement; and a deflecting member (92) fixed to the other end portions of the first and second leaf springs (84, 86), wherein when the piezoelectric element (72) is displaced, the second leaf spring (86) is displaced along the first leaf spring (84) through the movable member to rotate the deflecting member (92).