Dynamic magnetic information storage or retrieval – Head – Head accessory
Patent
1985-10-25
1988-05-31
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Head
Head accessory
360121, 360126, G11B 510, G11B 511
Patent
active
047485272
ABSTRACT:
A magnetic head device according to the present invention comprises a head core formed of a magnetic material. The head core includes a sliding portion having a magnetic gap defined therein and adapted to be in sliding contact with a magnetic record medium, and a pair of leg portions formed integrally with the sliding portion. A coil is wound around one of the leg portions of the head core. The head core is held between a pair of holder shells, which each have one end coupled to the sliding portion of the head core and the other end extending toward the other ends of the two leg portions of the head core to be coupled thereto. At least one of the holder shells is formed integrally with a connecting portion which, formed of a magnetic material, constitutes part of the other end of the holder shell, so that the connecting portion and the head core define a closed magnetic path passing through the magnetic gap.
REFERENCES:
patent: 3940798 (1976-02-01), Rumpler
patent: 4084199 (1978-04-01), Dorreboom
patent: 4449155 (1984-05-01), Meier et al.
patent: 4518940 (1985-05-01), Fuchs
Fujioka Yoshiharu
Itou Hiroyuki
Katoh Mitsuo
Tsutaki Shoji
Yoshida Toshinobu
Hecker Stuart N.
Kabushiki Kaisha Toshiba
Severin David J.
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