JPS54146607A - Tone-arm device - Google Patents

Tone-arm device

Info

Publication number
JPS54146607A
JPS54146607A JP5430478A JP5430478A JPS54146607A JP S54146607 A JPS54146607 A JP S54146607A JP 5430478 A JP5430478 A JP 5430478A JP 5430478 A JP5430478 A JP 5430478A JP S54146607 A JPS54146607 A JP S54146607A
Authority
JP
Japan
Prior art keywords
speed
arm
tone
circuit
speed set
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
JP5430478A
Other languages
Japanese (ja)
Inventor
Satoru Kusaka
Kuninori Shino
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP5430478A priority Critical patent/JPS54146607A/en
Priority to AU46662/79A priority patent/AU524048B2/en
Priority to CA326,841A priority patent/CA1104940A/en
Priority to NL7903611A priority patent/NL7903611A/en
Priority to US06/036,992 priority patent/US4241926A/en
Priority to FR7911637A priority patent/FR2425691B1/en
Priority to GB7915759A priority patent/GB2020880B/en
Priority to DE19792918525 priority patent/DE2918525A1/en
Publication of JPS54146607A publication Critical patent/JPS54146607A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To positively control arbitrary fixed speed servo-operation by a simple structure, by mounting a means for applying motional feedback and a turning speed set means to an electromagnetic means for rotating a tone-arm in the horizontal direction.
CONSTITUTION: Variable regulators 34a, 34b are changed over by means of a switch 34c of a speed set instrument 34, speed set signals in the desired direction are fed to an amplifying and serve-circuit 33 forming a motional feedback MFB circuit with each coil 22, 23 for horizontal detection and horizontal drive and speed-bias is applied. Since the output of the circuit 33 is supplied to the coil 23 for driving a tone-arm 1 in the horizontal direction, the arm 1 turns in the horizontal direction at fixed constant speed. Thus, arbitrary fixed speed servo-operation can positively be controlled only by adjusting the variable regulators of the speed set instrument.
COPYRIGHT: (C)1979,JPO&Japio
JP5430478A 1978-05-08 1978-05-08 Tone-arm device Pending JPS54146607A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP5430478A JPS54146607A (en) 1978-05-08 1978-05-08 Tone-arm device
AU46662/79A AU524048B2 (en) 1978-05-08 1979-05-02 Tone arm assembly
CA326,841A CA1104940A (en) 1978-05-08 1979-05-03 Tone arm assembly
NL7903611A NL7903611A (en) 1978-05-08 1979-05-08 TONE LOWER UNIT.
US06/036,992 US4241926A (en) 1978-05-08 1979-05-08 Tone arm assembly
FR7911637A FR2425691B1 (en) 1978-05-08 1979-05-08 READING ARM ASSEMBLY
GB7915759A GB2020880B (en) 1978-05-08 1979-05-08 Record player tone arm assembly damping vibrations
DE19792918525 DE2918525A1 (en) 1978-05-08 1979-05-08 TONE ARM SUPPORT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5430478A JPS54146607A (en) 1978-05-08 1978-05-08 Tone-arm device

Publications (1)

Publication Number Publication Date
JPS54146607A true JPS54146607A (en) 1979-11-16

Family

ID=12966824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5430478A Pending JPS54146607A (en) 1978-05-08 1978-05-08 Tone-arm device

Country Status (1)

Country Link
JP (1) JPS54146607A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906923A (en) * 1985-11-19 1990-03-06 Kabushiki Kaisha Toshiba Speed detecting apparatus including a multi-coil device
WO2021260973A1 (en) * 2020-06-22 2021-12-30 株式会社 小笠原プレシジョンラボラトリー Tone arm and record player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906923A (en) * 1985-11-19 1990-03-06 Kabushiki Kaisha Toshiba Speed detecting apparatus including a multi-coil device
WO2021260973A1 (en) * 2020-06-22 2021-12-30 株式会社 小笠原プレシジョンラボラトリー Tone arm and record player

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