JPS645374A - Driving method for ultrasonic motor - Google Patents

Driving method for ultrasonic motor

Info

Publication number
JPS645374A
JPS645374A JP62158415A JP15841587A JPS645374A JP S645374 A JPS645374 A JP S645374A JP 62158415 A JP62158415 A JP 62158415A JP 15841587 A JP15841587 A JP 15841587A JP S645374 A JPS645374 A JP S645374A
Authority
JP
Japan
Prior art keywords
oscillating elements
phase
ultrasonic oscillating
ultrasonic
oscillatory
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
JP62158415A
Other languages
Japanese (ja)
Inventor
Naoto Iwao
Yoshiharu Yamada
Hitoshi Yoshida
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.)
Brother Industries Ltd
Original Assignee
Brother Industries 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP62158415A priority Critical patent/JPS645374A/en
Publication of JPS645374A publication Critical patent/JPS645374A/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
    • H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
    • H02N2/001—Driving devices, e.g. vibrators
    • H02N2/0015—Driving devices, e.g. vibrators using only bending modes
    • 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
    • H02N2/103—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors by pressing one or more vibrators against the rotor

Landscapes

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

Abstract

PURPOSE:To smoothly rotate a rotor, by oscillating oscillatory pieces according to oscillation phase which is previously set. CONSTITUTION:The ultrasonic oscillating elements 14a, 14c of oscillatory pieces 13A, 13C are set in the same phase, and ultrasonic wave oscillating elements 15a, 15c are set in phase shifted from that of the ultrasonic oscillating elements 14a, 14c by a specified angle. The ultrasonic oscillating elements 14b, 14d of oscillatory pieces 13B, 13D are set in the same phase and are set in phase opposite to that of the ultrasonic oscillating elements 14a, 14c, and ultrasonic oscillating elements 15b, 15d are set in the same phase and are set in phase opposite to that of the ultrasonic oscillating elements 15a, 15c, and are set in phase shifted from that of the ultrasonic oscillating elements 14b, 14d by a specified angle. Then, voltage is applied to the respective ultrasonic oscillating elements 14a-14d, 15a-15d, and when the respective oscillatory pieces 13A-13D are oscillated, then by the combined oscillation in the vertical and peripheral directions, a rotor 17 and an output shaft 20 are integrally rotated in the specified direction. The rotating speed and direction are arbitrarily changed by regulating the phase of voltage applied to the respective ultrasonic oscillating elements 14a-14d, 15a-15d.
JP62158415A 1987-06-24 1987-06-24 Driving method for ultrasonic motor Pending JPS645374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62158415A JPS645374A (en) 1987-06-24 1987-06-24 Driving method for ultrasonic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62158415A JPS645374A (en) 1987-06-24 1987-06-24 Driving method for ultrasonic motor

Publications (1)

Publication Number Publication Date
JPS645374A true JPS645374A (en) 1989-01-10

Family

ID=15671257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62158415A Pending JPS645374A (en) 1987-06-24 1987-06-24 Driving method for ultrasonic motor

Country Status (1)

Country Link
JP (1) JPS645374A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023816A (en) * 1997-03-31 2000-02-15 Citizen Watch Co., Ltd. Locking device of a buckle of belt-shaped ornament
JP2001218481A (en) * 2000-01-31 2001-08-10 Seiko Instruments Inc Piezoelectric drive, ultrasonic motor, and electronic equipment with ultrasonic motor
JP2008245510A (en) * 2007-02-28 2008-10-09 Casio Comput Co Ltd Piezoelectric actuator, camera instrument and stage device for movement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023816A (en) * 1997-03-31 2000-02-15 Citizen Watch Co., Ltd. Locking device of a buckle of belt-shaped ornament
JP2001218481A (en) * 2000-01-31 2001-08-10 Seiko Instruments Inc Piezoelectric drive, ultrasonic motor, and electronic equipment with ultrasonic motor
JP2008245510A (en) * 2007-02-28 2008-10-09 Casio Comput Co Ltd Piezoelectric actuator, camera instrument and stage device for movement

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