JPS6469272A - Ultrasonic motor - Google Patents

Ultrasonic motor

Info

Publication number
JPS6469272A
JPS6469272A JP62226811A JP22681187A JPS6469272A JP S6469272 A JPS6469272 A JP S6469272A JP 62226811 A JP62226811 A JP 62226811A JP 22681187 A JP22681187 A JP 22681187A JP S6469272 A JPS6469272 A JP S6469272A
Authority
JP
Japan
Prior art keywords
groove
stator
section
ring
balls
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
JP62226811A
Other languages
Japanese (ja)
Inventor
Koichi Uchida
Ritsuo Inaba
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 JP62226811A priority Critical patent/JPS6469272A/en
Publication of JPS6469272A publication Critical patent/JPS6469272A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/16—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors using travelling waves, i.e. Rayleigh surface waves
    • H02N2/163—Motors with ring stator

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

PURPOSE:To improve efficiency of an ultrasonic motor and to control the noise low, by providing a groove to a rotor section and by arranging balls to transmit the force to pressure-weld the rotor and stator sections in this groove. CONSTITUTION:In an ultrasonic motor a rotor section 13 is composed of a ring-shaped rotating body 11 having a groove 11a concentric to the in and outside circumferences to the end face on one side and a frictional material 2 stuck to this rotating body together. A stator section 6 is composed, on the other, of an elastic body 4 where the frictional material 2 abuts against the projected sections 4a and a piezoelectric body 5. The above stator 6 is held with a supporting piece 7 and a supporting member 8. On this occasion, the stator 6 is equipped with a retainer 21 having multiple holes to hold necessary numbers of balls 22 more than three to the ring-shaped plate, a ring-shaped holding frame 23, a wave washer 24 and a fixed frame 25. The holding frame 23 being movable in the axial direction, the force generated is transmitted from balls 22 to the groove 11a through a groove 23a, so that the rotor section 13 and the stator section 6 are pressure-welded with it.
JP62226811A 1987-09-10 1987-09-10 Ultrasonic motor Pending JPS6469272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226811A JPS6469272A (en) 1987-09-10 1987-09-10 Ultrasonic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226811A JPS6469272A (en) 1987-09-10 1987-09-10 Ultrasonic motor

Publications (1)

Publication Number Publication Date
JPS6469272A true JPS6469272A (en) 1989-03-15

Family

ID=16850975

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226811A Pending JPS6469272A (en) 1987-09-10 1987-09-10 Ultrasonic motor

Country Status (1)

Country Link
JP (1) JPS6469272A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009148136A (en) * 2007-12-18 2009-07-02 Toyota Industries Corp Vibration actuator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224881A (en) * 1985-03-29 1986-10-06 Canon Inc Vibration wave motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224881A (en) * 1985-03-29 1986-10-06 Canon Inc Vibration wave motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009148136A (en) * 2007-12-18 2009-07-02 Toyota Industries Corp Vibration actuator

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