Recording device
AssigneeHitachi, Ltd.
InventorsJiro Hashidume, Yoshiaki Yamauchi
Life of this patent
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Abstract
The present invention provides a recording device that offers a large displacement control effect. The recording device includes a recording medium 224, a motor 222 that drives the recording medium, and a recording device head M1 that records and reproduces a signal to and from the recording medium. The recording device also has a displacement control mechanism M2. The displacement control mechanism M2 includes a vibrating plate 226 that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in the rotation axis direction of the recording medium; and an oscillator 232 that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate.
Claims11
A recording device comprising:
- a recording medium;
- a motor that drives the recording medium;
- a head that records and reads out a signal to and from the recording medium;
- a vibrating plate that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in a rotation axis direction of the recording medium;
- and
- an oscillator that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate;
- wherein the vibrating plate has two plate-like structures;
- wherein, when the oscillator displaces the vibrating plate, the two plate-like structures of the vibrating plate are displaced at a same frequency in the rotation axis direction of the recording medium;
- and
- wherein vibration phases of the two plate-like structures are 180 degrees apart in an opposite phase mode.
A recording device comprising:
- a recording medium;
- a motor that drives the recording medium;
- a head that records and reads out a signal to and from the recording medium;
- a vibrating plate that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in a rotation axis direction of the recording medium;
- an oscillator that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate;
- and
- an orientation control mechanism that can change positional and angular relations between the vibrating plate and the recording medium in accordance with an external control signal.
A recording device comprising:
- a recording medium;
- a motor that drives the recording medium;
- a head that records and reads out a signal to and from the recording medium;
- a vibrating plate that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in a rotation axis direction of the recording medium;
- and
- an oscillator that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate;
- wherein a piezoelectric element is employed in the oscillator.
Dependencies are inferred from the claim text.