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JPS54147807A - Record detaining device of record player - Google Patents

Record detaining device of record player

Info

Publication number
JPS54147807A
JPS54147807A JP5556078A JP5556078A JPS54147807A JP S54147807 A JPS54147807 A JP S54147807A JP 5556078 A JP5556078 A JP 5556078A JP 5556078 A JP5556078 A JP 5556078A JP S54147807 A JPS54147807 A JP S54147807A
Authority
JP
Japan
Prior art keywords
record
protrusion
records
mounting
center 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
JP5556078A
Other languages
Japanese (ja)
Inventor
Toshihiko Goto
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 JP5556078A priority Critical patent/JPS54147807A/en
Publication of JPS54147807A publication Critical patent/JPS54147807A/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
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/124—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of diameter of disks

Landscapes

  • Time Recorders, Dirve Recorders, Access Control (AREA)

Abstract

PURPOSE:To make posiible determination of the position of the center hole for record of arbitrary diameters and detection of record diameters by providing the specified protrusion to the mounting and dismounting mechanism of records. CONSTITUTION:A stationary stopper for 30-cm records and a protrusion which normally protrudes so as to perform detention to a 17-cm record and is freely movable in and out according to the outputs from a record diameter detector is provided to the mounting and dismounting mechanism 11 of a record 9. Oscillating arms are provided to the left and right of a record insertin port 10 and the oscillating angles thereof are detected, by which the protrusion is moved in and out to determine the position of the center hole of the record.
JP5556078A 1978-05-12 1978-05-12 Record detaining device of record player Pending JPS54147807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5556078A JPS54147807A (en) 1978-05-12 1978-05-12 Record detaining device of record player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5556078A JPS54147807A (en) 1978-05-12 1978-05-12 Record detaining device of record player

Publications (1)

Publication Number Publication Date
JPS54147807A true JPS54147807A (en) 1979-11-19

Family

ID=13002076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5556078A Pending JPS54147807A (en) 1978-05-12 1978-05-12 Record detaining device of record player

Country Status (1)

Country Link
JP (1) JPS54147807A (en)

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