JPS5730101A - Signal pickup device of rotary recording medium reproducing device - Google Patents

Signal pickup device of rotary recording medium reproducing device

Info

Publication number
JPS5730101A
JPS5730101A JP10251480A JP10251480A JPS5730101A JP S5730101 A JPS5730101 A JP S5730101A JP 10251480 A JP10251480 A JP 10251480A JP 10251480 A JP10251480 A JP 10251480A JP S5730101 A JPS5730101 A JP S5730101A
Authority
JP
Japan
Prior art keywords
cantilever
stylus
lifter
coil
fixed
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
JP10251480A
Other languages
Japanese (ja)
Inventor
Masayuki Inoue
Osamu Hattori
Shigemi Nakamura
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 JP10251480A priority Critical patent/JPS5730101A/en
Publication of JPS5730101A publication Critical patent/JPS5730101A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent a stylus from breaking securely by providing a magnet, magnetized ih the direction of stylus pressure, at the rear end of a cantilever, by arranging driving coils over and under the magnet, and by turning the cantilever perpendicularly to a disk surface without contacting.
CONSTITUTION: At one end of a cantilever 3, a permanent magnet 7 is fixed and the top and reverse surfaces in the direction of stylus pressure are an N and an S pole respectively. A lifter coil 14 has a winding shaft arranged coaxially with a cantilever shaft, and is fixed to a coil holder 10. As a current flows through the lifter coil 14, torque of rotation of the X axis is generated at the permanent magnet 7 and a stylus 4 fixed atop of the cantilever 3 moves up and down perpendicularly to a disk. The stylus pressure is adjusted finely by adjusting a lifter control current supplied to the lifter coil 14.
COPYRIGHT: (C)1982,JPO&Japio
JP10251480A 1980-07-28 1980-07-28 Signal pickup device of rotary recording medium reproducing device Pending JPS5730101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10251480A JPS5730101A (en) 1980-07-28 1980-07-28 Signal pickup device of rotary recording medium reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10251480A JPS5730101A (en) 1980-07-28 1980-07-28 Signal pickup device of rotary recording medium reproducing device

Publications (1)

Publication Number Publication Date
JPS5730101A true JPS5730101A (en) 1982-02-18

Family

ID=14329472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10251480A Pending JPS5730101A (en) 1980-07-28 1980-07-28 Signal pickup device of rotary recording medium reproducing device

Country Status (1)

Country Link
JP (1) JPS5730101A (en)

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