| 摘要 |
This ultrasonic vibration device is provided with: a laminated vibrator (41), which has a plurality of piezoelectric bodies (61) and a plurality of electrode plates (62, 63) laminated therein, and which has a polygonal columnar outer shape; insulating members (42, 43) that are disposed on both the ends of the laminated vibrator; a case main body (52) that houses the piezoelectric vibrator and the insulating members; a pressurizing member (51), which is fastened to an opening of the case main body by being screwed therein, and which fixes the laminated vibrator and the insulating members in the case main body by applying pressure; and a plurality of aligning member inserting sections (54) for inserting aligning members (100) therein, said aligning members holding the laminated vibrator and the insulating members in the polygonal columnar shape in the case main body, and aligning the laminated vibrator at a position where the laminated vibrator is not in contact with an inner wall of the case main body, and one end of the insulating members is in contact with the pressurizing member. |
