DE3325984C2 - - Google Patents

Info

Publication number
DE3325984C2
DE3325984C2 DE3325984A DE3325984A DE3325984C2 DE 3325984 C2 DE3325984 C2 DE 3325984C2 DE 3325984 A DE3325984 A DE 3325984A DE 3325984 A DE3325984 A DE 3325984A DE 3325984 C2 DE3325984 C2 DE 3325984C2
Authority
DE
Germany
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.)
Expired
Application number
DE3325984A
Other versions
DE3325984A1 (de
Inventor
Mitsuo Yokohama Jp Yamashita
Goro Sagamihara Kanagawa Jp Oda
Kiyoshi Yokohama Jp Tomimori
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of DE3325984A1 publication Critical patent/DE3325984A1/de
Application granted granted Critical
Publication of DE3325984C2 publication Critical patent/DE3325984C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/121—Mechanical drive devices for polygonal mirrors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/20—Optical, e.g. movable lenses or mirrors; Spectacles
    • F16C2370/22—Polygon mirror
DE19833325984 1982-07-20 1983-07-19 Elektromotoreinheit Granted DE3325984A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57126123A JPS5917019A (ja) 1982-07-20 1982-07-20 回転体支持装置

Publications (2)

Publication Number Publication Date
DE3325984A1 DE3325984A1 (de) 1984-02-02
DE3325984C2 true DE3325984C2 (de) 1987-02-12

Family

ID=14927216

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833325984 Granted DE3325984A1 (de) 1982-07-20 1983-07-19 Elektromotoreinheit

Country Status (3)

Country Link
US (1) US4552417A (de)
JP (1) JPS5917019A (de)
DE (1) DE3325984A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818193A1 (de) * 1988-05-28 1989-12-07 Asea Brown Boveri Spindel mit elektromotorischem einzelantrieb

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734606A (en) * 1985-11-20 1988-03-29 Hajec Chester S Electric motor with ferrofluid bearing
JPS6388314A (ja) * 1986-09-30 1988-04-19 Toshiba Corp 動圧空気軸受
CA2027225A1 (en) 1989-10-27 1991-04-28 Donald James Macleod Spindle motor assembly for disc drives
US5019738A (en) * 1990-07-16 1991-05-28 Lincoln Laser Company Self-pressurizing gas supported surface-roughness bearing
US5036235A (en) * 1990-07-25 1991-07-30 Xerox Corporation Brushless DC motor having a stable hydrodynamic bearing system
JPH04307108A (ja) * 1991-04-04 1992-10-29 Ebara Corp 動圧軸受装置
JPH08223858A (ja) * 1994-12-15 1996-08-30 Canon Inc インナーロータモータ
EP0764792B1 (de) * 1995-09-19 2003-04-09 Canon Kabushiki Kaisha Dynamische Gasdrucklagervorrichtung und abtastende optische Ablenkvorrichtung
JPH1198773A (ja) * 1997-09-26 1999-04-09 Minebea Co Ltd 磁気ディスク駆動用モータの製造方法
DE19847347C2 (de) * 1998-10-14 2001-03-29 Ldt Gmbh & Co Magnetlager
JP2000295816A (ja) * 1999-04-02 2000-10-20 Seiko Instruments Inc モータ、モータの製造方法、及び回転体装置
JP2003307214A (ja) * 2002-04-16 2003-10-31 Citizen Watch Co Ltd 輔受装置およびこの軸受装置を用いたモータ
US6972500B2 (en) 2003-03-26 2005-12-06 Keihin Corporation Electromagnetic actuator
JP3845421B2 (ja) * 2004-03-23 2006-11-15 株式会社ケーヒン 電磁式アクチュエータ
JP2006187061A (ja) * 2004-12-27 2006-07-13 Matsushita Electric Ind Co Ltd スピンドルモータ
CN101294601A (zh) * 2007-04-25 2008-10-29 富准精密工业(深圳)有限公司 动压轴承结构及采用该动压轴承结构的散热风扇
DE202009012924U1 (de) * 2009-09-25 2010-01-14 Precitec Kg Einschub zur Halterung einer Optik in einem Laserbearbeitungskopf sowie ein Laserbearbeitungskopf
CN103212795B (zh) * 2013-02-04 2015-08-19 张立国 一种基于空心电主轴的激光光束旋转装置
JP6286277B2 (ja) 2014-05-12 2018-02-28 日本電産コパル電子株式会社 流体動圧軸受、モータ、光偏向器
CN105202025B (zh) * 2015-09-12 2017-09-15 北京科技大学 一种旋转调制径向球面纯电磁磁轴承

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1919522A (en) * 1930-04-21 1933-07-25 Lipman Patents Corp Electric motor
US3004180A (en) * 1956-04-23 1961-10-10 Air Glide Inc Fluid supported rotor
DE1082977B (de) * 1956-08-25 1960-06-09 Siemens Ag Anordnung zur Gewinnung von Wechselstroemen mittlerer Frequenz, insbesondere zur Erzeugung von Ultraschall grosser Leistung
FR1226177A (fr) * 1959-05-30 1960-07-08 Air Glide Machines dynamoélectriques
FR1226129A (fr) * 1959-05-30 1960-07-08 Air Glide Machine dynamo-électrique
DE1869906U (de) * 1961-06-23 1963-04-04 Heliowatt Werke Elek Zitaets A Anordnung zur magnetischen entlastung der lager von zaehlern od. dgl.
JPS501759U (de) * 1973-05-04 1975-01-09
US4043612A (en) * 1975-06-06 1977-08-23 Ampex Corporation Bearing structure
US4187452A (en) * 1975-08-27 1980-02-05 International Business Machines Corporation Electromechanical torsional oscillator with resonant frequency and amplitude control
JPS5589839U (de) * 1978-12-14 1980-06-21
US4332428A (en) * 1979-01-16 1982-06-01 Matsushita Electric Industrial Co., Ltd. Rotary mechanism with axial bearings
JPS55119219A (en) * 1979-03-06 1980-09-12 Matsushita Electric Ind Co Ltd Rotation transmitting device
JPS5620830A (en) * 1979-07-26 1981-02-26 Matsushita Electric Ind Co Ltd Rotation transmitting device
JPS5789357U (de) * 1980-11-17 1982-06-02
JPS5843421A (ja) * 1981-09-09 1983-03-14 Toshiba Corp 回転鏡光偏向器
JPS5892516U (ja) * 1981-12-18 1983-06-23 日本精工株式会社 回転ユニツト用動圧軸受装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818193A1 (de) * 1988-05-28 1989-12-07 Asea Brown Boveri Spindel mit elektromotorischem einzelantrieb

Also Published As

Publication number Publication date
DE3325984A1 (de) 1984-02-02
JPH0520607B2 (de) 1993-03-22
JPS5917019A (ja) 1984-01-28
US4552417A (en) 1985-11-12

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8128 New person/name/address of the agent

Representative=s name: HENKEL, G., DR.PHIL. FEILER, L., DR.RER.NAT. HAENZ

D2 Grant after examination
8327 Change in the person/name/address of the patent owner

Owner name: KABUSHIKI KAISHA TOSHIBA, KAWASAKI, KANAGAWA, JP

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee