G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.1
G11B 15/60 (2006.01) G11B 5/588 (2006.01) H04N 5/76 (2006.01)
Patent
CA 1145462
ABSTRACT The present invention provides A magnetic recording and reproducing apparatus comprising: a rotary swinging member rotating unitarily with a rotary shaft, said rotary swinging member being provided integrally with a pair of arcuate yoke parts at positions opposed in a diametral direction of a rotating plane of the rotary swinging member about a rotation center thereof; permanent magnets respectively fixed to said pair of yoke parts in a state where their opposite polarities are opposed; a pair of rotary magnetic heads supported on the rotary swinging member at positions opposed in a diametral direction of a rotating plane of the rotary swinging member about a rotation center thereof in a state where tips of said heads projecting outwards from outer surface of the yoke parts; fulcrum means for supporting said rotary swinging member in a freely swinging manner and acting as a fulcrum for swinging, said fulcum being in a direction perpendicular, at a rotation center, to a line connecting said pair of rotary magnetic heads; and a control coil of cylindrical shape disposed at a position where said control coil exists in a magnetic field formed by the permanent magnet rotating with the rotary swinging member, said control coil being supplied with a control signal, said rotary swinging member swinging in response to the control signal with said fulcrum means as a fulcrum for swinging.
358253
Marks & Clerk
Victor Company Of Japan Ltd.
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