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JPS57189373A - Signal pickup device - Google Patents

Signal pickup device

Info

Publication number
JPS57189373A
JPS57189373A JP7308081A JP7308081A JPS57189373A JP S57189373 A JPS57189373 A JP S57189373A JP 7308081 A JP7308081 A JP 7308081A JP 7308081 A JP7308081 A JP 7308081A JP S57189373 A JPS57189373 A JP S57189373A
Authority
JP
Japan
Prior art keywords
coils
cantilever
magnetic yoke
cantilever driving
disposed
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
JP7308081A
Other languages
Japanese (ja)
Other versions
JPS6258068B2 (en
Inventor
Yoshihiko Fukuoka
Takeshi Shimamoto
Shoji Oba
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7308081A priority Critical patent/JPS57189373A/en
Publication of JPS57189373A publication Critical patent/JPS57189373A/en
Publication of JPS6258068B2 publication Critical patent/JPS6258068B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To make conversion efficiency high and pickup structure simple by disposing two cantilever driving coils and one magnetic yoke effectively to a cantilever driving part. CONSTITUTION:Cantilever driving coils 8, 8' drive a cantilever 2 in its longitudinal direction or rotate and drive the same with the coupling part of an elastic supporting body 5 as a fulcrum according to the direction of the electric currents to be supplied to the coils 8, 8' by the mutual effect with a permanent magnet 3 which is magnetized in the direction vertical to the central axis of the lever 2. These coils 8, 8' are disposed in both end parts of one magnetic yoke 9 which is so disposed as to face both poles of the magnet 3. Since the cantilever driving coils are mounted to the magnetic yoke in this way, the efficiency of converting electric energy to kinetic energy is improved.
JP7308081A 1981-05-14 1981-05-14 Signal pickup device Granted JPS57189373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7308081A JPS57189373A (en) 1981-05-14 1981-05-14 Signal pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7308081A JPS57189373A (en) 1981-05-14 1981-05-14 Signal pickup device

Publications (2)

Publication Number Publication Date
JPS57189373A true JPS57189373A (en) 1982-11-20
JPS6258068B2 JPS6258068B2 (en) 1987-12-03

Family

ID=13507987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7308081A Granted JPS57189373A (en) 1981-05-14 1981-05-14 Signal pickup device

Country Status (1)

Country Link
JP (1) JPS57189373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006114656A3 (en) * 2005-04-28 2007-03-15 Attila Toth Energy converting circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121611A (en) * 1977-03-31 1978-10-24 Victor Co Of Japan Ltd Reproducing stylus driving unit of information signal reproducing element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121611A (en) * 1977-03-31 1978-10-24 Victor Co Of Japan Ltd Reproducing stylus driving unit of information signal reproducing element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006114656A3 (en) * 2005-04-28 2007-03-15 Attila Toth Energy converting circuit

Also Published As

Publication number Publication date
JPS6258068B2 (en) 1987-12-03

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