JP2009011058A5 - - Google Patents

Download PDF

Info

Publication number
JP2009011058A5
JP2009011058A5 JP2007169142A JP2007169142A JP2009011058A5 JP 2009011058 A5 JP2009011058 A5 JP 2009011058A5 JP 2007169142 A JP2007169142 A JP 2007169142A JP 2007169142 A JP2007169142 A JP 2007169142A JP 2009011058 A5 JP2009011058 A5 JP 2009011058A5
Authority
JP
Japan
Prior art keywords
vibrator
permanent magnet
driven
vibration wave
driving device
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
Application number
JP2007169142A
Other languages
Japanese (ja)
Other versions
JP2009011058A (en
JP5349768B2 (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2007169142A priority Critical patent/JP5349768B2/en
Priority claimed from JP2007169142A external-priority patent/JP5349768B2/en
Publication of JP2009011058A publication Critical patent/JP2009011058A/en
Publication of JP2009011058A5 publication Critical patent/JP2009011058A5/ja
Application granted granted Critical
Publication of JP5349768B2 publication Critical patent/JP5349768B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Claims (8)

電気量を機械量としての振動に変換する電気−機械エネルギ変換素子と軟磁性材料からなる弾性体とを接合して構成される振動子と、
前記振動子を構成する前記弾性体に対し部分的な隙間を有して接触され、前記振動子に励起される振動により発生する摩擦駆動力によって駆動される被駆動体と、
前記振動子と前記被駆動体との間に圧接力を発生させる加圧手段とを備え、
前記加圧手段を前記圧接力としての磁力を発生させる永久磁石から構成すると共に、前記永久磁石を前記被駆動体と一体的に形成し、
前記振動子と前記被駆動体とが対向する部分に、前記振動子と前記被駆動体とを接触させる摩擦接触部と前記永久磁石による圧接力発生部とを分離して配置したことを特徴とする振動波駆動装置。 A vibrator configured by joining an electro-mechanical energy conversion element that converts an electrical quantity into a vibration as a mechanical quantity and an elastic body made of a soft magnetic material;
A driven member wherein the contact has a partial gap to said elastic body constituting the vibrator is driven by frictional driving force generated by vibration excited in the vibrator,
Pressurizing means for generating a pressing force between the vibrator and the driven body,
Together constituting the pressurizing means from the permanent magnet generating a magnetic force as the contact pressure, to form the permanent magnet before SL driven member integral with,
A friction contact portion for bringing the vibrator and the driven body into contact with each other and a pressure contact force generating portion by the permanent magnet are separately arranged at a portion where the vibrator and the driven body are opposed to each other. A vibration wave driving device. 前記電気−機械エネルギ変換素子と前記弾性体を板状に形成すると共に、前記被駆動体を駆動方向に長い形状に形成したことを特徴とする請求項１記載の振動波駆動装置。 The electro - to form a an energy transducer the elastic member in a plate shape, the vibration wave driving apparatus according to claim 1, wherein the forming the driven member in a long shape in the driving direction. 前記永久磁石における前記被駆動体の駆動方向と直交する断面を凸形状に形成すると共に、前記断面を凸形状に形成された凸部の両側に前記摩擦接触部を配置し、
前記弾性体と前記永久磁石との間の前記隙間を前記凸部の高さ方向の寸法に比較して小さく設定すると共に、前記隙間を介して前記圧接力を作用させることを特徴とする請求項１又は２記載の振動波駆動装置。 A section perpendicular to the drive direction of the driven body in the permanent magnet is formed in a convex shape, and the friction contact portions are disposed on both sides of the convex portion formed in the convex section.
The gap between the elastic body and the permanent magnet is set to be smaller than a dimension in the height direction of the convex portion, and the pressure contact force is applied through the gap. The vibration wave driving device according to 1 or 2. 前記摩擦接触部を前記被駆動体側又は前記振動子側のいずれかに配置したことを特徴とする請求項３記載の振動波駆動装置。   4. The vibration wave driving device according to claim 3, wherein the friction contact portion is disposed on either the driven body side or the vibrator side. 前記永久磁石における前記被駆動体の駆動方向と直交する断面を凹形状に形成すると共に、前記断面を凹形状に形成された凹部の内側に前記摩擦接触部を配置し、
前記弾性体と前記永久磁石との間の前記隙間を前記凹部の深さ方向の寸法に比較して小さく設定すると共に、前記隙間を介して前記圧接力を作用させることを特徴とする請求項１又は２記載の振動波駆動装置。 The cross section perpendicular to the drive direction of the driven body in the permanent magnet is formed in a concave shape, and the friction contact portion is disposed inside a concave portion in which the cross section is formed in a concave shape ,
2. The gap between the elastic body and the permanent magnet is set to be smaller than a dimension in the depth direction of the recess, and the pressing force is applied through the gap. Or the vibration wave drive device of 2. 前記摩擦接触部を、バネ性を有する弾性部材と耐磨耗性を有する摩擦部材とから構成したことを特徴とする請求項１、３乃至５のいずれかに記載の振動波駆動装置。   6. The vibration wave driving device according to claim 1, wherein the friction contact portion is composed of an elastic member having spring properties and a friction member having wear resistance. 前記バネ性を有する弾性部材を高分子材料により形成したことを特徴とする請求項６記載の振動波駆動装置。   7. The vibration wave driving device according to claim 6, wherein the elastic member having a spring property is formed of a polymer material. 前記振動子と前記被駆動体を回転軸の周りに回転可能に構成すると共に、前記永久磁石と一体化された前記被駆動体をロータとして構成し、
前記ロータを前記振動子に励起される振動により前記回転軸の周りに回転させることを特徴とする請求項１記載の振動波駆動装置。 Wherein the vibrator as well as configured to be rotatable about the axis of rotation of the driven body, and constitutes the driven member which is integrated with the permanent magnet as a rotor,
The vibration wave driving device according to claim 1, wherein the rotor is rotated around the rotation axis by vibration excited by the vibrator.
JP2007169142A 2007-06-27 2007-06-27 Vibration wave drive Active JP5349768B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007169142A JP5349768B2 (en) 2007-06-27 2007-06-27 Vibration wave drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007169142A JP5349768B2 (en) 2007-06-27 2007-06-27 Vibration wave drive

Publications (3)

Publication Number Publication Date
JP2009011058A JP2009011058A (en) 2009-01-15
JP2009011058A5 true JP2009011058A5 (en) 2010-07-01
JP5349768B2 JP5349768B2 (en) 2013-11-20

Family

ID=40325567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007169142A Active JP5349768B2 (en) 2007-06-27 2007-06-27 Vibration wave drive

Country Status (1)

Country Link
JP (1) JP5349768B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6576214B2 (en) 2015-11-06 2019-09-18 キヤノン株式会社 Vibration type actuator, lens barrel, imaging device and stage device
JP6639243B2 (en) 2016-01-14 2020-02-05 キヤノン株式会社 Vibration type actuator and electronic equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356176A (en) * 1986-08-22 1988-03-10 Nippon Denso Co Ltd Ultrasonic motor
JPS63277478A (en) * 1987-04-10 1988-11-15 Matsushita Electric Ind Co Ltd Ultrasonic motor
JPH0222094U (en) * 1988-07-26 1990-02-14
JPH0866061A (en) * 1994-08-19 1996-03-08 Mitsui Petrochem Ind Ltd Ultrasonic motor
JP4072518B2 (en) * 2004-06-09 2008-04-09 キヤノン株式会社 Vibration wave drive

Similar Documents

Publication Publication Date Title
EP2017904A3 (en) Ultrasonic motor
JP2006301456A5 (en)
JP2008253068A5 (en)
JP2011200055A5 (en)
JP2011217595A5 (en)
JP2010263769A5 (en)
JP2013038878A5 (en)
JP2011200051A5 (en)
JP2006301457A5 (en)
JP2017011797A5 (en)
JP2016201906A5 (en)
GB2349738B (en) Improvements in or relating to ultrasonic motors
JP2009011058A5 (en)
JP2005354787A5 (en)
JPS59188381A (en) Improvement in rotor/movable element of surface wave motor
JP2011239571A5 (en)
JP2011254587A5 (en)
CN202231635U (en) Double-vibrator parallel travelling wave type ultrasonic motor
JP2004048932A5 (en)
JP2016059121A5 (en)
JP5349768B2 (en) Vibration wave drive
JP4645229B2 (en) Drive device
TWM286995U (en) Ultrasonic motor
KR100460330B1 (en) Half-bimorph vibrator of linear ultrasonic motor
JP2003116289A5 (en)