JPS554736A - Disc player - Google Patents

Disc player

Info

Publication number
JPS554736A
JPS554736A JP7645378A JP7645378A JPS554736A JP S554736 A JPS554736 A JP S554736A JP 7645378 A JP7645378 A JP 7645378A JP 7645378 A JP7645378 A JP 7645378A JP S554736 A JPS554736 A JP S554736A
Authority
JP
Japan
Prior art keywords
disc
turned
switch
stylus
turntable
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
JP7645378A
Other languages
Japanese (ja)
Inventor
Kyo Yamashita
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 JP7645378A priority Critical patent/JPS554736A/en
Publication of JPS554736A publication Critical patent/JPS554736A/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/10—Control of operating function, e.g. switching from recording to reproducing by sensing presence or absence of record in accessible stored position or on turntable

Abstract

PURPOSE:To prevent the damage of a signal detection head such as a stylus by providing the automatic reproducing function of the disc and constituting a disc player so that the pickup may be prevented from moving in case of an unmounted disc even if a start switch is truned on. CONSTITUTION:Under the state where disc 1 has not been yet mounted on turntable, disc stop 13 is protruded onto the outside circumference of turntable 2 from disc stopping unit 4 by spring 14, and switch 15 is turned off. Meanwhile, when disc 1 has been mounted on turntable 2, disc stop 13 is pressed into the center shaft 12 side from a disc hole, and switch 15 is turned on. The signal of this switch 15 is supplied to AND circuit 10, and the output of AND circuit 10 is turned on only when the switch 15 output signal as well as the reproducing start switch 11 output signal are turned on. As a result, when disc 1 has not been yet mounted, the output of circuit 10 is turned off, and the stylus does not descend, so that the damage of the stylus can be prevented.
JP7645378A 1978-06-26 1978-06-26 Disc player Pending JPS554736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7645378A JPS554736A (en) 1978-06-26 1978-06-26 Disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7645378A JPS554736A (en) 1978-06-26 1978-06-26 Disc player

Publications (1)

Publication Number Publication Date
JPS554736A true JPS554736A (en) 1980-01-14

Family

ID=13605561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7645378A Pending JPS554736A (en) 1978-06-26 1978-06-26 Disc player

Country Status (1)

Country Link
JP (1) JPS554736A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170086617A1 (en) * 2014-06-04 2017-03-30 Nissin Foods Holdings Co., Ltd. Multistage steaming machine
US20170119193A1 (en) * 2014-06-04 2017-05-04 Nissin Foods Holdings Co., Ltd. Multistage steaming machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170086617A1 (en) * 2014-06-04 2017-03-30 Nissin Foods Holdings Co., Ltd. Multistage steaming machine
US20170119193A1 (en) * 2014-06-04 2017-05-04 Nissin Foods Holdings Co., Ltd. Multistage steaming machine
US10524605B2 (en) 2014-06-04 2020-01-07 Nissin Foods Holdings Co., Ltd. Multistage steaming machine
US10548426B2 (en) 2014-06-04 2020-02-04 Nissin Foods Holdings Co., Ltd. Multistage steaming machine

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