| 摘要 |
PURPOSE:To increase the output by providing a groove near the nodal circle section of a disc-shaped oscillating body and by pressing an oscillation-proof material to the oscillating body for supporting with a spring. CONSTITUTION:In an ultrasonic motor a groove 15 is provided up to the neutral surface 14 near a nodal circle section 20 of an oscillating body 9. An oscillating- proof material 16 is provided to this groove 15 and with a diaphragm spring 17 fitted into the groove 15 the oscillating body 9 is supported and fixed. Under this spring 17 a moving body 13 is installed through a bearing 18 and with a pressure adjuster 19 the oscillation-proof material 16 is pressed to and brought into contact with the oscillating body 9. Stress concentration in the diametrical direction can thereby be moderated. |
