JPS6419981A - Ultrasonic motor - Google Patents

Ultrasonic motor

Info

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
Application number
JP62173227A
Other languages
Japanese (ja)
Inventor
Hiroshi Komeno
Yoshinobu Imasaka
Masanori Sumihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62173227A priority Critical patent/JPS6419981A/en
Publication of JPS6419981A publication Critical patent/JPS6419981A/en
Pending legal-status Critical Current

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.
JP62173227A 1987-07-10 1987-07-10 Ultrasonic motor Pending JPS6419981A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04109878A (en) * 1990-08-28 1992-04-10 Canon Inc Vibration wave drive device
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

Cited By (4)

* Cited by examiner, † Cited by third party
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 drive device
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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