JPS595018U

JPS595018U - Magnetic head azimuth automatic adjustment device

Info

Publication number: JPS595018U
Application number: JP9743682U
Authority: JP
Inventors: 新門　幸男
Original assignee: 株式会社セコ−技研
Priority date: 1982-06-30
Filing date: 1982-06-30
Publication date: 1984-01-13

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案にかかる磁気ヘッドのアジマス自動調整
装置の磁気ヘッド取付部正面図、第２図は従来の磁気ヘ
ッド・アジマス自動調整装置の正面図、第３図は、本考
案装置に用いる微調整部材あ説明図、第４図は、本考案
装置に用いられる操作回路図を示す。１・・・シャーシ、２・・・ヘッド基板、４・・・ガイ
ド、６・・・スタッド、７・・・磁気ヘッド、８・・・
シールドケース、９・・・ヘッド調整板、１０・・・ア
ジマス微調整部材、１３・・・ヘッドコア、２３・・・
ピエゾ・セラミック素子、２４．２５・・・取付部、２
６・・・基準電圧端子、２７・・・スイッチング回路、
２９．３０・・・電圧調整回路。Fig. 1 is a front view of the magnetic head mounting part of the magnetic head azimuth automatic adjustment device according to the present invention, Fig. 2 is a front view of a conventional magnetic head azimuth automatic adjustment device, and Fig. 3 is a front view of the magnetic head azimuth automatic adjustment device used in the present invention device. FIG. 4, an explanatory diagram of the fine adjustment member, shows an operating circuit diagram used in the device of the present invention. DESCRIPTION OF SYMBOLS 1... Chassis, 2... Head board, 4... Guide, 6... Stud, 7... Magnetic head, 8...
Shield case, 9... Head adjustment plate, 10... Azimuth fine adjustment member, 13... Head core, 23...
Piezo ceramic element, 24.25...Mounting part, 2
6... Reference voltage terminal, 27... Switching circuit,
29.30...Voltage adjustment circuit.

Claims

[Scope of utility model registration request]

(1) In an azimuth adjustment device for a magnetic head used in an auto-reverse magnetic recording/reproducing device, A: a head adjustment plate having a shield case surrounding the head core constituting the magnetic head joined to the center; a head substrate movably provided on the chassis to move toward and away from the magnetic head; and a stud installed on the head substrate and screwed into one end of the head adjustment plate to set the height of the magnetic head. D: an azimuth fine adjustment member using an electro-mechanical conversion element provided to connect between the other end of the head adjustment plate and the chassis, and E: an electro-mechanical device constituting the azimuth fine adjustment member. It is composed of two voltage adjustment circuits that set the output voltage to the conversion element, and a switching circuit that selects one of the output voltages of the two voltage adjustment circuits in accordance with the running direction of the magnetic tape, and An automatic azimuth adjustment device for a magnetic head, characterized in that the azimuth is finely adjusted by expanding and contracting an electro-mechanical conversion element by inputting an input to a mechanical conversion element.

(2) In the scope of the utility model registration claim set forth in paragraph (1), the electro-mechanical transducer described above comprises a pair of piezo ceramic elements having electrodes coated on two surfaces facing each other in the direction of polarization. , B, which is attached to both ends of the pair of piezoelectric ceramic elements so as to be sandwiched therebetween, and further includes a mounting portion to which the chassis and head adjustment plate described above are attached, respectively, and is attached to the piezoceramic elements described above. An automatic azimuth adjustment device for a magnetic head, characterized in that the azimuth is adjusted electrically by creating a potential difference between deposited electrodes.