Tape drive device
AssigneeHitachi, Ltd.
InventorsMasahiko Fujita, Kenji Hayashi, Kazutoshi Konno
Life of this patent
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Abstract
A tape drive device in which a cavity is formed in a reel hub provided for supplying or taking up a tape-shaped information recording and reproducing medium such as a magnetic tape or a film. A motor including a rotor unit and a stator unit is partly or wholly received within the cavity of the reel hub, and the rotating force generated by the rotor part of the motor is transmitted directly or through a reduction gearing to the reel hub to cause rotation of the reel hub.
Claims11
A tape drive device including a reel hub for supplying or taking up a tape-shaped information recording and reproducing medium such as a magnetic tape or a film, said device comprising, at least:
- (a) a reel hub formed with a cavity thereinside;
- (b) a motor received at least partly within said cavity formed in said reel hub, said motor including a rotor unit and a stator unit;
- and
- (c) coupling means comprising a reduction gearing for transmitting to said reel hub the rotating force generated by the rotor unit of said motor received within said cavity of said reel hub.
A tape drive device including a reel hub for supplying or taking up a tape-shaped information recording and reproducing medium such as a magnetic tape or a film, said device comprising, at least:
- (a) a reel hub formed with a cavity thereinside;
- (b) a motor received at least partly within said cavity formed in said reel hub, said motor including a rotor unit and a stator unit, said rotor unit of said motor comprising a magnet magnetized at its peripheral surface with a plurality of magnetic poles and a shaft having said magnet fixedly mounted thereon, and said stator unit of said motor comprising at least one drive coil means disposed to substantially surround said magnet, a yoke having said drive coils means fixedly mounted thereon, and at least one Hall element sensing the angular position of rotation of said magnet;
- and
- (c) coupling means for transmitting to said reel hub the rotating force generated by the rotor unit of said motor received within said cavity of said reel hub.
Dependencies are inferred from the claim text.