JPS5694550A - Record player having linear tracking arm - Google Patents

Record player having linear tracking arm

Info

Publication number
JPS5694550A
JPS5694550A JP17228179A JP17228179A JPS5694550A JP S5694550 A JPS5694550 A JP S5694550A JP 17228179 A JP17228179 A JP 17228179A JP 17228179 A JP17228179 A JP 17228179A JP S5694550 A JPS5694550 A JP S5694550A
Authority
JP
Japan
Prior art keywords
tone arm
pulley
electromagnetic brake
control
hysteresis
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
JP17228179A
Other languages
Japanese (ja)
Inventor
Naoki Tanaka
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 JP17228179A priority Critical patent/JPS5694550A/en
Publication of JPS5694550A publication Critical patent/JPS5694550A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the deterioration of voice quality of a record disc, reducing the number of corrections of rotation of a tone arm, through stable movement of the tone arm with dynamic friction at all times.
CONSTITUTION: A magnet 20 is mounted to a magnet support plate 18 incorporated to the rotary shaft 19 of a motor 9 turning at all times, and a sleeve 15 fitted to the shaft 19 is provided with hysteresis plates 16, 21 and a pulley 8a incorporatedly. An electromagnetic brake 12 constitutes magnetic path clipped with a pair of yokes 22a, 22b for a coil 17 and a part of a hysteresis plate 16 is inserted with noncontact state. Further, a shaking angle θ of a tone arm 5 is detected with a sensor 10, a control voltage is obtained from a comparison control circuit 14 and the speed control of the pulley 8a is made by supplying this to an electromagnetic brake 12. The revolution of the pulley 8a is delivered to the tone arm 5 via a string 7 to control the movement.
COPYRIGHT: (C)1981,JPO&Japio
JP17228179A 1979-12-27 1979-12-27 Record player having linear tracking arm Pending JPS5694550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17228179A JPS5694550A (en) 1979-12-27 1979-12-27 Record player having linear tracking arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17228179A JPS5694550A (en) 1979-12-27 1979-12-27 Record player having linear tracking arm

Publications (1)

Publication Number Publication Date
JPS5694550A true JPS5694550A (en) 1981-07-31

Family

ID=15939004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17228179A Pending JPS5694550A (en) 1979-12-27 1979-12-27 Record player having linear tracking arm

Country Status (1)

Country Link
JP (1) JPS5694550A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429604A (en) * 1977-08-09 1979-03-05 Aiwa Co Linear tracking arm feeding mechanism for player

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429604A (en) * 1977-08-09 1979-03-05 Aiwa Co Linear tracking arm feeding mechanism for player

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