JPS59138018U - erase head - Google Patents

erase head

Info

Publication number
JPS59138018U
JPS59138018U JP3221583U JP3221583U JPS59138018U JP S59138018 U JPS59138018 U JP S59138018U JP 3221583 U JP3221583 U JP 3221583U JP 3221583 U JP3221583 U JP 3221583U JP S59138018 U JPS59138018 U JP S59138018U
Authority
JP
Japan
Prior art keywords
erase head
magnetic flux
flux density
saturation magnetic
density adjacent
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
JP3221583U
Other languages
Japanese (ja)
Inventor
山下　啓太郎
竹内　義一
勝本　撤
Original Assignee
ソニー株式会社
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 ソニー株式会社 filed Critical ソニー株式会社
Priority to JP3221583U priority Critical patent/JPS59138018U/en
Publication of JPS59138018U publication Critical patent/JPS59138018U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の消去ヘッドを示す路線的平面図、第２図
はその動作原理を示す路線図、第３図は本ゝ″１ 考案の動作原理を示す路線図、第４図〜第１２図は本考
案による消去ヘッドの一実施例を示す路線的平面図であ
る。 １．１５．１８．２８・・・ギャップ、２，１２゜１６
．２６・・・進入側コア、３．　１３．　１７．　２７
・・・離脱側コア、４．８・・・消去磁界、５・・・記
録媒体、１１．１５．２５・・・消去ヘッド、１９〜２
２゜２９〜３２・・・挿入部材。Figure 1 is a schematic plan view showing a conventional erasing head, Figure 2 is a schematic diagram showing its operating principle, Figure 3 is a schematic diagram showing the operating principle of this invention, and Figures 4 to 12 The figure is a linear plan view showing an embodiment of the erasing head according to the present invention. 1.15.18.28...Gap, 2,12°16
．． 26... entry side core, 3. 13. 17. 27
... Detachment side core, 4.8... Erasing magnetic field, 5... Recording medium, 11.15.25... Erasing head, 19-2
2°29-32...insertion member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ギャップを挾んで進入側に隣接して飽和磁束密度の大き
い部材を有し、かつ離脱側に隣接して飽和磁束密度の小
さい部材を有することを特徴とする消去ヘッド。An erasing head characterized by having a member having a high saturation magnetic flux density adjacent to the entrance side with a gap in between, and a member having a low saturation magnetic flux density adjacent to the exit side.
JP3221583U 1983-03-08 1983-03-08 erase head Pending JPS59138018U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3221583U JPS59138018U (en) 1983-03-08 1983-03-08 erase head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3221583U JPS59138018U (en) 1983-03-08 1983-03-08 erase head

Publications (1)

Publication Number Publication Date
JPS59138018U true JPS59138018U (en) 1984-09-14

Family

ID=30163045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3221583U Pending JPS59138018U (en) 1983-03-08 1983-03-08 erase head

Country Status (1)

Country Link
JP (1) JPS59138018U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129789U (en) * 1974-08-27 1976-03-03
JPS5616833B2 (en) * 1978-07-15 1981-04-18
JPS5637821B2 (en) * 1973-05-08 1981-09-02

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5637821B2 (en) * 1973-05-08 1981-09-02
JPS5129789U (en) * 1974-08-27 1976-03-03
JPS5616833B2 (en) * 1978-07-15 1981-04-18

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