| 摘要 |
PROBLEM TO BE SOLVED: To prevent a piezoelectric element and an electrode from turning together when bolting a backing in comparatively simple configuration. SOLUTION: In the Langevin vibrator, a plurality of piezoelectric elements and electrodes are laminated, and the laminated piezoelectric elements and electrodes are held between a tip member and the backing and bolted. The bolted Langevin vibrator is provided with a bolt linked through the laminated piezoelectric elements and electrodes to the tip member. A first backing is screwed into the bolt. A second backing arranged between the first backing and the electrodes. The second backing is equipped with a stopper. Then, the bolt is equipped with a stopper to be fitted into a groove and the stopper is fitted into the groove to block the relative rotation of the second backing and the bolt. COPYRIGHT: (C)2004,JPO
|
