JPS6419981A - Ultrasonic motor - Google Patents
Ultrasonic motorInfo
- Publication number
- JPS6419981A JPS6419981A JP62173227A JP17322787A JPS6419981A JP S6419981 A JPS6419981 A JP S6419981A JP 62173227 A JP62173227 A JP 62173227A JP 17322787 A JP17322787 A JP 17322787A JP S6419981 A JPS6419981 A JP S6419981A
- Authority
- JP
- Japan
- Prior art keywords
- lubricant
- moving body
- porous plastic
- ultrasonic vibrator
- plastic material
- 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
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
PURPOSE:To reduce a change with time in a frictional coefficient between all ultrasonic vibrator and a moving body and applied pressure by fixing a friction material, in which the air gaps of a porous plastic material are impregnated with a lubricant, onto the pressure contact surfaces of the ultrasonic vibrator and the moving body. CONSTITUTION:A friction material 4 is fastened to at least one of the pressure contact surfaces of an ultrasonic vibrator 2 and a moving body 3. The friction material 4 is formed by impregnating the air gaps of a porous plastic material with a lubricating oil. The composite plastics of abrasion-resistant fillers and a resin may be used as the porous plastic material and a liquefied lubricant or a powdered lubricant may be employed as the lubricant. Accordingly, the lubricant is mixed into abrasion powder even when a motor is used for a prolonged term, thus preventing adhesion onto the vibrator and the moving body, then obviating the variation of performance due to a change with time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173227A JPS6419981A (en) | 1987-07-10 | 1987-07-10 | Ultrasonic motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173227A JPS6419981A (en) | 1987-07-10 | 1987-07-10 | Ultrasonic motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6419981A true JPS6419981A (en) | 1989-01-24 |
Family
ID=15956499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62173227A Pending JPS6419981A (en) | 1987-07-10 | 1987-07-10 | Ultrasonic motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6419981A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04109878A (en) * | 1990-08-28 | 1992-04-10 | Canon Inc | Vibration wave motor |
JPH0648920U (en) * | 1992-12-03 | 1994-07-05 | 日東工器株式会社 | Hydraulic puncher |
US5990597A (en) * | 1989-02-10 | 1999-11-23 | Nikon Corporation | Ultrasonic motor having high drive efficiency |
US9417424B2 (en) | 2011-06-22 | 2016-08-16 | Nikon Corporation | Vibration actuator, lens barrel, and camera |
-
1987
- 1987-07-10 JP JP62173227A patent/JPS6419981A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5990597A (en) * | 1989-02-10 | 1999-11-23 | Nikon Corporation | Ultrasonic motor having high drive efficiency |
JPH04109878A (en) * | 1990-08-28 | 1992-04-10 | Canon Inc | Vibration wave motor |
JPH0648920U (en) * | 1992-12-03 | 1994-07-05 | 日東工器株式会社 | Hydraulic puncher |
US9417424B2 (en) | 2011-06-22 | 2016-08-16 | Nikon Corporation | Vibration actuator, lens barrel, and camera |
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