JPS57143715A - Erasing head device - Google Patents

Erasing head device

Info

Publication number
JPS57143715A
JPS57143715A JP3040281A JP3040281A JPS57143715A JP S57143715 A JPS57143715 A JP S57143715A JP 3040281 A JP3040281 A JP 3040281A JP 3040281 A JP3040281 A JP 3040281A JP S57143715 A JPS57143715 A JP S57143715A
Authority
JP
Japan
Prior art keywords
core
constitution body
reverse
erasing head
spacing plate
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
JP3040281A
Other languages
Japanese (ja)
Inventor
Mitsuru Yoneyama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3040281A priority Critical patent/JPS57143715A/en
Publication of JPS57143715A publication Critical patent/JPS57143715A/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

PURPOSE:To obtain an erasing head device which is inexpensive and has high efficiency, by forming a rear core in a channel shape, and magnetically coupling its one magnetic path end part and the other magnetic path end part, to an L- core constitution body of the front core and a reverse L-core constitution body of the front core, respectively. CONSTITUTION:This erasing head device is provided with an erasing head 14, a front core 15, the first spacing plate 16a forming a gap, the second spacing plate 16b for forming the gap, the third spacing plate 16c, the first L-core constitution body 17a for constituting the front core, the second L-core constitution body 17b, the first reverse L-core constitution body 18a, the second reverse L- core constitution body 18b, a rear core 19, a bobbin 20, a wire 21 wound round the bobbin 20, and a terminal 22 fixed to the bobbin 20. This device is formed by alternately laminating the L-core constitution body and the reverse L-core constitution body, consisting of a magnetic material through a spacing plate consisting of a nonmagnetic material, and working a magnetic tape contact surface in a circular arc.
JP3040281A 1981-03-02 1981-03-02 Erasing head device Pending JPS57143715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3040281A JPS57143715A (en) 1981-03-02 1981-03-02 Erasing head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3040281A JPS57143715A (en) 1981-03-02 1981-03-02 Erasing head device

Publications (1)

Publication Number Publication Date
JPS57143715A true JPS57143715A (en) 1982-09-06

Family

ID=12302937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3040281A Pending JPS57143715A (en) 1981-03-02 1981-03-02 Erasing head device

Country Status (1)

Country Link
JP (1) JPS57143715A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0467521U (en) * 1990-10-18 1992-06-16
WO2024090231A1 (en) * 2022-10-24 2024-05-02 ヤマハ株式会社 Support component and speaker unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0467521U (en) * 1990-10-18 1992-06-16
WO2024090231A1 (en) * 2022-10-24 2024-05-02 ヤマハ株式会社 Support component and speaker unit

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