JPS5249406A - Voice coil motor - Google Patents

Voice coil motor

Info

Publication number
JPS5249406A
JPS5249406A JP12439375A JP12439375A JPS5249406A JP S5249406 A JPS5249406 A JP S5249406A JP 12439375 A JP12439375 A JP 12439375A JP 12439375 A JP12439375 A JP 12439375A JP S5249406 A JPS5249406 A JP S5249406A
Authority
JP
Japan
Prior art keywords
voice coil
coil motor
utilizing
gap
way
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
JP12439375A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Ushijima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12439375A priority Critical patent/JPS5249406A/en
Publication of JPS5249406A publication Critical patent/JPS5249406A/en
Pending legal-status Critical Current

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  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

PURPOSE: To improve efficiency and reduce weight by utilizing not only one way but also return path in magnetic circuit having gap between parmanent magnet and center pole.
COPYRIGHT: (C)1977,JPO&Japio
JP12439375A 1975-10-17 1975-10-17 Voice coil motor Pending JPS5249406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12439375A JPS5249406A (en) 1975-10-17 1975-10-17 Voice coil motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12439375A JPS5249406A (en) 1975-10-17 1975-10-17 Voice coil motor

Publications (1)

Publication Number Publication Date
JPS5249406A true JPS5249406A (en) 1977-04-20

Family

ID=14884303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12439375A Pending JPS5249406A (en) 1975-10-17 1975-10-17 Voice coil motor

Country Status (1)

Country Link
JP (1) JPS5249406A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164459A (en) * 1985-01-11 1986-07-25 Showa Electric Wire & Cable Co Ltd Linear motor
US5008578A (en) * 1989-04-26 1991-04-16 Pace Sang H L Permanent magnet motor having diverting magnets

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599020A (en) * 1970-02-27 1971-08-10 Ibm Linear actuator with alternating magnetic poles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599020A (en) * 1970-02-27 1971-08-10 Ibm Linear actuator with alternating magnetic poles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164459A (en) * 1985-01-11 1986-07-25 Showa Electric Wire & Cable Co Ltd Linear motor
US5008578A (en) * 1989-04-26 1991-04-16 Pace Sang H L Permanent magnet motor having diverting magnets

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