| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasonic motor in which a transducer is stably supported to a regulate position in a motor structure, without restraining the ultrasonic vibration of the transducer. <P>SOLUTION: The ultrasonic motor 10 comprises a press-support structure 20, composed of a support spring member 30 and a static backing material 32. The support spring member 30 comprises a first fixing part 34, a second fixing part 36 and an intermediate fixing part 38 located between the fixing parts 34, 36, fixedly connected to the transducer 14 by the intermediate fixing part 38, and fixed to a pair of fixing bases 40 of the static backing material 32 by the first and second fixing parts 34, 36. In this state, the support spring member 30 exerts a spring force, that press-pushes the drive face 12 of the transducer 14 to the surface region 28 of a movable body 18 at a pair of extended parts 42. Fixing positions of the first and second fixing parts 34, 36 to both the fixing bases 40 are lower than the top end of the transducer 14, as viewed in the direction of the height of the transducer 14 with the drive face 12 as a bottom, and are arranged adjacent to the movable body 18. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
