JPS55108904A - Vibrator of pickup cartridge - Google Patents

Vibrator of pickup cartridge

Info

Publication number
JPS55108904A
JPS55108904A JP1619179A JP1619179A JPS55108904A JP S55108904 A JPS55108904 A JP S55108904A JP 1619179 A JP1619179 A JP 1619179A JP 1619179 A JP1619179 A JP 1619179A JP S55108904 A JPS55108904 A JP S55108904A
Authority
JP
Japan
Prior art keywords
copper wire
bimetal
ambient temperature
fixed
characteristic
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
JP1619179A
Other languages
Japanese (ja)
Inventor
Kazuo Konakawa
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.)
HOKKAIDO SHINAGAWA MUSEN KK
Original Assignee
HOKKAIDO SHINAGAWA MUSEN KK
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 HOKKAIDO SHINAGAWA MUSEN KK filed Critical HOKKAIDO SHINAGAWA MUSEN KK
Priority to JP1619179A priority Critical patent/JPS55108904A/en
Publication of JPS55108904A publication Critical patent/JPS55108904A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To keep a fixed damping characteristic even under a wide-range ambient temperature environment by combining the bend characteristic of a bimetal dependent upon change of the ambient temperature and expansion temperature coefficients of a copper wire and a damper to vary damping tension applied to a cantilever.
CONSTITUTION: Cantilever 3 which has acoustic needle 1 at one end and a powder generation element consisting of permanent magnet 7 at the other end has very narrow copper wire led to the external through the core, and this copper wire 4 is not fixed by holding jig 6 but is led out to the other end and has one end fixed to the other end of bimetal 8 which has one end held by holding jig 6. Tension of copper wire 4 is varied by combining previously the bend characteristic of bimetal 8 with expansion coefficients of copper wire 4 and damper 5, so that the damping characteristic of the vibration system can be matched to the ambient temperature.
COPYRIGHT: (C)1980,JPO&Japio
JP1619179A 1979-02-16 1979-02-16 Vibrator of pickup cartridge Pending JPS55108904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1619179A JPS55108904A (en) 1979-02-16 1979-02-16 Vibrator of pickup cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1619179A JPS55108904A (en) 1979-02-16 1979-02-16 Vibrator of pickup cartridge

Publications (1)

Publication Number Publication Date
JPS55108904A true JPS55108904A (en) 1980-08-21

Family

ID=11909618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1619179A Pending JPS55108904A (en) 1979-02-16 1979-02-16 Vibrator of pickup cartridge

Country Status (1)

Country Link
JP (1) JPS55108904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176206U (en) * 1982-05-18 1983-11-25 日本コロムビア株式会社 Pickup Cartridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176206U (en) * 1982-05-18 1983-11-25 日本コロムビア株式会社 Pickup Cartridge

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