CA2048400A1 - Vibration driven motor - Google Patents
Vibration driven motorInfo
- Publication number
- CA2048400A1 CA2048400A1 CA 2048400 CA2048400A CA2048400A1 CA 2048400 A1 CA2048400 A1 CA 2048400A1 CA 2048400 CA2048400 CA 2048400 CA 2048400 A CA2048400 A CA 2048400A CA 2048400 A1 CA2048400 A1 CA 2048400A1
- Authority
- CA
- Canada
- Prior art keywords
- electro
- energy conversion
- mechanical energy
- vibration
- vibration member
- 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.)
- Granted
Links
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
In an ultrasonic motor wherein a driving signal is applied to an electro-mechanical energy conversion element provided in a vibration member to thereby excite flexural vibrations of the same shape in the two different planes of the vibration member with a phase difference in time and thereby create rotational motion on the surface of the vibration member, thus frictionally driving a movable member which is in pressure contact with the vibration forming surface, electro-mechanical energy conversion elements for exciting the flexural vibrations are each disposed at a position whereat the sum totals of strains created in the electro-mechanical energy conversion elements are substantially equal to each other.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2-206231 | 1990-08-03 | ||
JP2206231A JP2633072B2 (en) | 1990-08-03 | 1990-08-03 | Vibration wave driving device and device using vibration wave driving device |
JP2206234A JPH0491669A (en) | 1990-08-03 | 1990-08-03 | Supersonic motor |
JP2-206234 | 1990-08-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2048400A1 true CA2048400A1 (en) | 1992-02-04 |
CA2048400C CA2048400C (en) | 1996-07-16 |
Family
ID=26515520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2048400 Expired - Lifetime CA2048400C (en) | 1990-08-03 | 1991-08-02 | Vibration driven motor |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2048400C (en) |
-
1991
- 1991-08-02 CA CA 2048400 patent/CA2048400C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2048400C (en) | 1996-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKEC | Expiry (correction) |
Effective date: 20121202 |