JPS5764364A - Arm horizontal driving device of record player - Google Patents

Arm horizontal driving device of record player

Info

Publication number
JPS5764364A
JPS5764364A JP13828680A JP13828680A JPS5764364A JP S5764364 A JPS5764364 A JP S5764364A JP 13828680 A JP13828680 A JP 13828680A JP 13828680 A JP13828680 A JP 13828680A JP S5764364 A JPS5764364 A JP S5764364A
Authority
JP
Japan
Prior art keywords
tone arm
arm
detecting
accordance
hole
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
JP13828680A
Other languages
Japanese (ja)
Inventor
Sakae Yoshida
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.)
Sanyo Electric Co Ltd
Kumagaya Seimitsu Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Kumagaya Seimitsu Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Kumagaya Seimitsu Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP13828680A priority Critical patent/JPS5764364A/en
Publication of JPS5764364A publication Critical patent/JPS5764364A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means

Abstract

PURPOSE:To elevate the accuracy of a descent position of a tone arm by a simple constitution, be detecting that the tone arm has approached a start point of a performance of a record, by an optical sensor, and controlling a horizontal moving speed of the tone arm. CONSTITUTION:A tone arm 1 is turned together with a counter weight 2 by being supported by a horizontal turning shaft 3. To the horizontal turning shaft 3, a shutter plate 4 having a detecting hole 6 and a play hole 5 is installed so that it turns as the arm 1 turns, and passes through a space of a photocoupler 7. The tone arm 1 which has been stationary on an arm rest starts to turn horizontally at a high speed, and in accordance with a signal of the detecting hole 6 (which is selected in advance in accordance with size of a record) of the shutter plate, the tone arm switches its speed to a low speed at t2, and subsequently, the tone arm 1 is made to descend onto the disk surface at t3 in accordance with a signal of the play hole 5. In this way, it is capable of descending in a small error range[between (a) and (b)]by a simple device which requires no positin detecting device.
JP13828680A 1980-10-02 1980-10-02 Arm horizontal driving device of record player Pending JPS5764364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13828680A JPS5764364A (en) 1980-10-02 1980-10-02 Arm horizontal driving device of record player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13828680A JPS5764364A (en) 1980-10-02 1980-10-02 Arm horizontal driving device of record player

Publications (1)

Publication Number Publication Date
JPS5764364A true JPS5764364A (en) 1982-04-19

Family

ID=15218342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13828680A Pending JPS5764364A (en) 1980-10-02 1980-10-02 Arm horizontal driving device of record player

Country Status (1)

Country Link
JP (1) JPS5764364A (en)

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