JPS61130045U - - Google Patents

Info

Publication number
JPS61130045U
JPS61130045U JP1355485U JP1355485U JPS61130045U JP S61130045 U JPS61130045 U JP S61130045U JP 1355485 U JP1355485 U JP 1355485U JP 1355485 U JP1355485 U JP 1355485U JP S61130045 U JPS61130045 U JP S61130045U
Authority
JP
Japan
Prior art keywords
rotating drum
grooves
magnetic recording
annular groove
registration request
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
JP1355485U
Other languages
English (en)
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 filed Critical
Priority to JP1355485U priority Critical patent/JPS61130045U/ja
Publication of JPS61130045U publication Critical patent/JPS61130045U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は従来の回転ドラム装置を示す要部側面
図、第2図は同装置における上部ドラムの加工を
示す概略断面図、第3図は第2図における加工後
の変形を示す上部ドラムの概略断面図、第4図は
この考案の一実施例を示す回転ドラム装置の要部
の側面図、第5図はこの考案による上部ドラムの
要部断面図である。 1……上部ドラム、2……下部ドラム、4……
磁気ヘツド、6……環状凹溝。

Claims (1)

    【実用新案登録請求の範囲】
  1. 回転ドラムが設けられ、筒状の外周に環状凹溝
    が所定間隔を置いて複数形成された回転ドラムを
    備えた磁気記録再生装置の回転ドラム装置であつ
    て、上記回転ドラムの外周径を、上記環状凹溝に
    沿つて順次変化させたことを特徴とする回転ドラ
    ム装置。
JP1355485U 1985-01-31 1985-01-31 Pending JPS61130045U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1355485U JPS61130045U (ja) 1985-01-31 1985-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1355485U JPS61130045U (ja) 1985-01-31 1985-01-31

Publications (1)

Publication Number Publication Date
JPS61130045U true JPS61130045U (ja) 1986-08-14

Family

ID=30497671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1355485U Pending JPS61130045U (ja) 1985-01-31 1985-01-31

Country Status (1)

Country Link
JP (1) JPS61130045U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0334113A (ja) * 1989-06-29 1991-02-14 Hitachi Ltd 情報記録再生用ドラム装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4836722B1 (ja) * 1968-06-04 1973-11-07
JPS599445B2 (ja) * 1978-08-07 1984-03-02 富士電機株式会社 固形製剤の搬送装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4836722B1 (ja) * 1968-06-04 1973-11-07
JPS599445B2 (ja) * 1978-08-07 1984-03-02 富士電機株式会社 固形製剤の搬送装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0334113A (ja) * 1989-06-29 1991-02-14 Hitachi Ltd 情報記録再生用ドラム装置

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