JPH04134681A - Head positioning mechanism - Google Patents

Head positioning mechanism

Info

Publication number
JPH04134681A
JPH04134681A JP25596790A JP25596790A JPH04134681A JP H04134681 A JPH04134681 A JP H04134681A JP 25596790 A JP25596790 A JP 25596790A JP 25596790 A JP25596790 A JP 25596790A JP H04134681 A JPH04134681 A JP H04134681A
Authority
JP
Japan
Prior art keywords
coefft
thermal expansion
head
support
actuator
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
JP25596790A
Inventor
Takaharu Ariga
Tomoyoshi Yamada
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP25596790A priority Critical patent/JPH04134681A/en
Publication of JPH04134681A publication Critical patent/JPH04134681A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To allow positioning with high accuracy by providing an auxiliary actuator consisting of piggyback actuators which are so assembled as to have the coefft. of thermal expansion matching with the coefft. of thermal expansion of an access arm.
CONSTITUTION: The access arm 12 oscillated by a main actuator 11 in the radial direction of a magnetic disk and a head supporting spring 13 supporting a head are connected by a frame structure support 15. The auxiliary actuator 19 for microdisplacement consisting of a connecting body of microdisplacing elements 27 and members 18 for compensation having the coefft. of thermal expansion matching with the coefft. of thermal expansion of another beam constituting the support 17 is provided over the entire part or part of the beam extending to the head side of the support 15 of this mechanism so that the head supporting spring 13 can be microdisplaced in the radial direction of the recording disk independently from the main actuator 11.
COPYRIGHT: (C)1992,JPO&Japio
JP25596790A 1990-09-25 1990-09-25 Head positioning mechanism Pending JPH04134681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25596790A JPH04134681A (en) 1990-09-25 1990-09-25 Head positioning mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25596790A JPH04134681A (en) 1990-09-25 1990-09-25 Head positioning mechanism

Publications (1)

Publication Number Publication Date
JPH04134681A true JPH04134681A (en) 1992-05-08

Family

ID=17286065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25596790A Pending JPH04134681A (en) 1990-09-25 1990-09-25 Head positioning mechanism

Country Status (1)

Country Link
JP (1) JPH04134681A (en)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020486A1 (en) * 1996-11-01 1998-05-14 Seagate Technology, Inc. Actuator arm integrated piezoelectric microactuator
US6069771A (en) * 1996-11-04 2000-05-30 Seagate Technology, Inc. Gimbal micropositioning device
US6108175A (en) * 1996-12-16 2000-08-22 Seagate Technology, Inc. Bimorph piezoelectric microactuator head and flexure assembly
US6157522A (en) * 1998-04-07 2000-12-05 Seagate Technology Llc Suspension-level microactuator
US6215629B1 (en) 1998-04-16 2001-04-10 Seagate Technology Llc Unitary synchronous flexure microactuator
US6222706B1 (en) 1997-03-31 2001-04-24 Seagate Technology Llc Flexure microactuator
US6233124B1 (en) 1998-11-18 2001-05-15 Seagate Technology Llc Piezoelectric microactuator suspension assembly with improved stroke length
US6268984B1 (en) 1999-01-22 2001-07-31 Seagate Technology Llc Magnet configuration for head-level microactuator
US6268983B1 (en) * 1997-12-25 2001-07-31 Matsushita Electric Industrial Co., Ltd. Head actuator driven by piezoelectric element
US6289564B1 (en) 1997-08-15 2001-09-18 Seagate Technology Llc Method of making a piezoelectric microactuator for precise head positioning
US6297936B1 (en) 1998-11-09 2001-10-02 Seagate Technology Llc Integral load beam push-pull microactuator
US6320730B1 (en) 1998-09-26 2001-11-20 Seagate Technology Llc Low-stress disc drive microactuator cradle
US6351354B1 (en) 1999-05-07 2002-02-26 Seagate Technology Llc Head to flexure interconnection for disc drive microactuator
US6359758B1 (en) 1998-06-11 2002-03-19 Seagate Technology, Llc Rigid body microactuator having elastic joint attachment
US6392848B1 (en) 1998-03-20 2002-05-21 Fujitsu Limited Head carriage assembly and disk device incorporating thereof
US6414823B1 (en) 1999-06-09 2002-07-02 Seagate Technology Llc Coil-structures for magnetic microactuator
US6414822B1 (en) 1998-06-11 2002-07-02 Seagate Technology Llc Magnetic microactuator
US6498706B1 (en) 1999-03-15 2002-12-24 Fujitsu Limited Dual driving unit for a magnetic head carriage assembly and magnetic disk drive
US6507463B1 (en) 1999-06-11 2003-01-14 Seagate Technology, Inc. Micro disc drive employing arm level microactuator
US6574077B1 (en) 1999-12-02 2003-06-03 Seagate Technology Llc Microactuator assembly having improved standoff configuration
US6614628B2 (en) 2001-01-19 2003-09-02 Seagate Technology Llc Moving coil micro actuator with reduced rotor mass
US6683758B2 (en) 2000-06-01 2004-01-27 Seagate Technology Llc Fabrication method for integrated microactuator coils
US6683757B1 (en) 2000-04-05 2004-01-27 Seagate Technology Llc Slider-level microactuator for precise head positioning
US6697232B1 (en) 2000-03-24 2004-02-24 Seagate Technology Llc Bonded transducer-level electrostatic microactuator for disc drive system
US6765766B2 (en) 2000-07-11 2004-07-20 Seagate Technology Llc Bonding tub improved electromagnetic microactuator in disc drives
US6778350B2 (en) 2000-10-06 2004-08-17 Seagate Technology Llc Feed forward control of voice coil motor induced microactuator disturbance
US6785086B1 (en) 2000-04-05 2004-08-31 Seagate Technology Llc Transducer-level microactuator with dual-axis control
US6798609B1 (en) 1999-07-28 2004-09-28 Seagate Technology, Inc. Magnetic microactuator with capacitive position sensor
US6831539B1 (en) 2003-08-28 2004-12-14 Seagate Technology Llc Magnetic microactuator for disc with integrated head connections and limiters drives
US6851120B2 (en) 2000-07-13 2005-02-01 Seagate Technology Llc Micro-actuator structure for improved stability
JP2005322395A (en) * 2004-04-30 2005-11-17 Headway Technologies Inc Recording head, reproducing head, reproducing and recording head and displacement method of reproducing and recording head

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6052251A (en) * 1996-11-01 2000-04-18 Seagate Technology, Inc. Actuator arm integrated piezoelectric microactuator
WO1998020486A1 (en) * 1996-11-01 1998-05-14 Seagate Technology, Inc. Actuator arm integrated piezoelectric microactuator
US6298545B1 (en) 1996-11-01 2001-10-09 Seagate Technology Llc Method of making an actuator arm integrated piezoelectric microactuator
US6069771A (en) * 1996-11-04 2000-05-30 Seagate Technology, Inc. Gimbal micropositioning device
US6108175A (en) * 1996-12-16 2000-08-22 Seagate Technology, Inc. Bimorph piezoelectric microactuator head and flexure assembly
US6222706B1 (en) 1997-03-31 2001-04-24 Seagate Technology Llc Flexure microactuator
US6362542B1 (en) 1997-08-15 2002-03-26 Seagate Technology Llc Piezoelectric microactuator for precise head positioning
US6289564B1 (en) 1997-08-15 2001-09-18 Seagate Technology Llc Method of making a piezoelectric microactuator for precise head positioning
US6268983B1 (en) * 1997-12-25 2001-07-31 Matsushita Electric Industrial Co., Ltd. Head actuator driven by piezoelectric element
US6392848B1 (en) 1998-03-20 2002-05-21 Fujitsu Limited Head carriage assembly and disk device incorporating thereof
US6157522A (en) * 1998-04-07 2000-12-05 Seagate Technology Llc Suspension-level microactuator
US6215629B1 (en) 1998-04-16 2001-04-10 Seagate Technology Llc Unitary synchronous flexure microactuator
US6359758B1 (en) 1998-06-11 2002-03-19 Seagate Technology, Llc Rigid body microactuator having elastic joint attachment
US6414822B1 (en) 1998-06-11 2002-07-02 Seagate Technology Llc Magnetic microactuator
US6320730B1 (en) 1998-09-26 2001-11-20 Seagate Technology Llc Low-stress disc drive microactuator cradle
US6297936B1 (en) 1998-11-09 2001-10-02 Seagate Technology Llc Integral load beam push-pull microactuator
US6233124B1 (en) 1998-11-18 2001-05-15 Seagate Technology Llc Piezoelectric microactuator suspension assembly with improved stroke length
US6268984B1 (en) 1999-01-22 2001-07-31 Seagate Technology Llc Magnet configuration for head-level microactuator
US6634083B1 (en) 1999-01-22 2003-10-21 Seagate Technology Llc Method of forming a magnet/keeper assembly for head level microactuator
US6498706B1 (en) 1999-03-15 2002-12-24 Fujitsu Limited Dual driving unit for a magnetic head carriage assembly and magnetic disk drive
US6351354B1 (en) 1999-05-07 2002-02-26 Seagate Technology Llc Head to flexure interconnection for disc drive microactuator
US6414823B1 (en) 1999-06-09 2002-07-02 Seagate Technology Llc Coil-structures for magnetic microactuator
US6507463B1 (en) 1999-06-11 2003-01-14 Seagate Technology, Inc. Micro disc drive employing arm level microactuator
US6798609B1 (en) 1999-07-28 2004-09-28 Seagate Technology, Inc. Magnetic microactuator with capacitive position sensor
US6574077B1 (en) 1999-12-02 2003-06-03 Seagate Technology Llc Microactuator assembly having improved standoff configuration
US6697232B1 (en) 2000-03-24 2004-02-24 Seagate Technology Llc Bonded transducer-level electrostatic microactuator for disc drive system
US6683757B1 (en) 2000-04-05 2004-01-27 Seagate Technology Llc Slider-level microactuator for precise head positioning
US6785086B1 (en) 2000-04-05 2004-08-31 Seagate Technology Llc Transducer-level microactuator with dual-axis control
US6683758B2 (en) 2000-06-01 2004-01-27 Seagate Technology Llc Fabrication method for integrated microactuator coils
US6765766B2 (en) 2000-07-11 2004-07-20 Seagate Technology Llc Bonding tub improved electromagnetic microactuator in disc drives
US6851120B2 (en) 2000-07-13 2005-02-01 Seagate Technology Llc Micro-actuator structure for improved stability
US6778350B2 (en) 2000-10-06 2004-08-17 Seagate Technology Llc Feed forward control of voice coil motor induced microactuator disturbance
US6614628B2 (en) 2001-01-19 2003-09-02 Seagate Technology Llc Moving coil micro actuator with reduced rotor mass
US6831539B1 (en) 2003-08-28 2004-12-14 Seagate Technology Llc Magnetic microactuator for disc with integrated head connections and limiters drives
JP2005322395A (en) * 2004-04-30 2005-11-17 Headway Technologies Inc Recording head, reproducing head, reproducing and recording head and displacement method of reproducing and recording head

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