JPS6477454A - Actuator for head positioning drive - Google Patents

Actuator for head positioning drive

Info

Publication number
JPS6477454A
JPS6477454A JP23245087A JP23245087A JPS6477454A JP S6477454 A JPS6477454 A JP S6477454A JP 23245087 A JP23245087 A JP 23245087A JP 23245087 A JP23245087 A JP 23245087A JP S6477454 A JPS6477454 A JP S6477454A
Authority
JP
Japan
Prior art keywords
coils
driving coils
pivoted
stage
gap
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
JP23245087A
Other languages
Japanese (ja)
Inventor
Koji Otani
Shigemitsu Oguchi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP23245087A priority Critical patent/JPS6477454A/en
Publication of JPS6477454A publication Critical patent/JPS6477454A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To realize driving coils and magnetic circuits, excellent in the rise-up characteristics of current, by a method wherein single stage or multi-stage coil rows, in which a plurality of driving coils, having a low inductance, are arranged in the same plane, are constituted to reduce electromagnetic connection between the coils. CONSTITUTION:Magnet assemblies 21, 22, in which 3 pieces of flat plate type permanent magnets are connected by the side surfaces thereof so that the front surface and the rear surface thereof are provided with reverse polarities alternately, are attached to the opposing surfaces of yokes 11, 12 provided opposingly to each other. Further, another magnet assembly 23 is provided between the magnet assemblies 21, 22 so as to keep predetermined gaps 31, 32. Driving coils 41, 42 are arranged in an upper stage and are pivoted in the gap 31 while the driving coils 43, 44 are arranged in a lower stage and are pivoted in the gap 32. The driving coils 41-44 are pivoted in the gaps 31, 32 having high flux densities by control current whereby a magnetic head, moved in conjunction with the coils, is positioned at a desired place.
JP23245087A 1987-09-18 1987-09-18 Actuator for head positioning drive Pending JPS6477454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23245087A JPS6477454A (en) 1987-09-18 1987-09-18 Actuator for head positioning drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23245087A JPS6477454A (en) 1987-09-18 1987-09-18 Actuator for head positioning drive

Publications (1)

Publication Number Publication Date
JPS6477454A true JPS6477454A (en) 1989-03-23

Family

ID=16939473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23245087A Pending JPS6477454A (en) 1987-09-18 1987-09-18 Actuator for head positioning drive

Country Status (1)

Country Link
JP (1) JPS6477454A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008118746A (en) * 2006-11-01 2008-05-22 Mitsubishi Electric Corp Combined linear motor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008118746A (en) * 2006-11-01 2008-05-22 Mitsubishi Electric Corp Combined linear motor device

Similar Documents

Publication Publication Date Title
US4468648A (en) Switchable permanent magnetic chuck
WO1991010242A3 (en) Magnetic drive with permanent-magnet solenoid armature
EP0829887A3 (en) Magnetic actuator with long travel in one direction
US4638193A (en) Linear impulse motor
KR930014517A (en) Disk drive
JPS5583454A (en) Moving coil type linear motor
JPS6477454A (en) Actuator for head positioning drive
JPS5741145A (en) Magnetic chuck
JPH01147063A (en) Magnetron sputtering device
EP0229280A3 (en) Planar linear pulse motor
US20100176902A1 (en) Magnetic Drive System for a Switching Device
JPH0568941B2 (en)
JPS6373861A (en) Manufacture of magnet circuit
WO1992001876A3 (en) Electromagnetic actuator
CN215897559U (en) Linear motor
JPH03265458A (en) Assembling method of linear motor
JP4190025B2 (en) MRI magnetic circuit assembly method
SU1432683A1 (en) Linear direct-current motor
JPS5716563A (en) Electromagnetic actuator
JPS5791666A (en) Digital linear motor
JPS60141681U (en) linear motor
JP2567013Y2 (en) Magnetic circuit for linear motor
JPS5934091Y2 (en) Magnetizing device
SU1339794A1 (en) Linear electric motor
EP0394060A3 (en) Dot printer head