JPS6477486A - Ultrasonic motor - Google Patents
Ultrasonic motorInfo
- Publication number
- JPS6477486A JPS6477486A JP62233851A JP23385187A JPS6477486A JP S6477486 A JPS6477486 A JP S6477486A JP 62233851 A JP62233851 A JP 62233851A JP 23385187 A JP23385187 A JP 23385187A JP S6477486 A JPS6477486 A JP S6477486A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- stator
- rotor
- compressive stress
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To obtain a motor having strong revolving torque by installing an arcuate vibrator, which takes a cross shape symmetrical with respect to its center and four nose sections of which are inscribed in a circle, and an annulus ring circumscribed with the vibrator so as to apply static compressive stress bias. CONSTITUTION:A stator 11 is composed of a in-longitudianl-plane flexural double mode vibrator, divided electrodes 51 are formed onto each contact finger surface of the crossed vibrator and the same electrodes as the surface are also shaped onto the rear of the vibrator, and electric terminals 52, 52' and 53, 53' are mounted. A rotor 12 is brought into contact with the stator 11 by bolts 13, accompanying static compressive stress bias at all times. AC signals, phase of which differs at 90 deg. in the resonance frequency of a degenerating double mode vibrator, are input to the stator 11, thus forcibly exciting elliptical vibrations in four contact surfaces between the stator 11 and the rotor 12. Accordingly, the rotor 12 can be turned by strong revolving torque.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233851A JPS6477486A (en) | 1987-09-18 | 1987-09-18 | Ultrasonic motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233851A JPS6477486A (en) | 1987-09-18 | 1987-09-18 | Ultrasonic motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6477486A true JPS6477486A (en) | 1989-03-23 |
Family
ID=16961568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62233851A Pending JPS6477486A (en) | 1987-09-18 | 1987-09-18 | Ultrasonic motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6477486A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001033645A3 (en) * | 1999-10-31 | 2001-11-01 | Nanomotion Ltd | Piezoelectric motors and motor driving configurations |
JP2008245507A (en) * | 2007-02-28 | 2008-10-09 | Konica Minolta Opto Inc | Friction drive actuator |
JP2008283756A (en) * | 2007-05-09 | 2008-11-20 | Sharp Corp | Ultrasonic motor |
CN102931875A (en) * | 2012-11-22 | 2013-02-13 | 哈尔滨工业大学 | SMD square ultrasonic motor vibrator and driving method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6185078A (en) * | 1984-10-02 | 1986-04-30 | Ngk Spark Plug Co Ltd | Rotary driver |
JPS61170285A (en) * | 1985-01-24 | 1986-07-31 | Matsushita Electric Works Ltd | Piezoelectric linear motor |
JPS62126872A (en) * | 1985-11-25 | 1987-06-09 | Matsushita Electric Works Ltd | Piezoelectric motor |
-
1987
- 1987-09-18 JP JP62233851A patent/JPS6477486A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6185078A (en) * | 1984-10-02 | 1986-04-30 | Ngk Spark Plug Co Ltd | Rotary driver |
JPS61170285A (en) * | 1985-01-24 | 1986-07-31 | Matsushita Electric Works Ltd | Piezoelectric linear motor |
JPS62126872A (en) * | 1985-11-25 | 1987-06-09 | Matsushita Electric Works Ltd | Piezoelectric motor |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001033645A3 (en) * | 1999-10-31 | 2001-11-01 | Nanomotion Ltd | Piezoelectric motors and motor driving configurations |
US6979936B1 (en) | 1999-10-31 | 2005-12-27 | Nanomotion Ltd. | Piezoelectric motors and motor driving configurations |
US7199507B2 (en) | 1999-10-31 | 2007-04-03 | Nanomotion Ltd. | Piezoelectric motors and motor driving configurations |
JP2008245507A (en) * | 2007-02-28 | 2008-10-09 | Konica Minolta Opto Inc | Friction drive actuator |
JP2008283756A (en) * | 2007-05-09 | 2008-11-20 | Sharp Corp | Ultrasonic motor |
CN102931875A (en) * | 2012-11-22 | 2013-02-13 | 哈尔滨工业大学 | SMD square ultrasonic motor vibrator and driving method thereof |
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