Document Type and Number:
Japanese Patent JPH0356520
Kind Code:
B2
Abstract:
An audio frequency electromechanical vibrator comprising a flat plate permanent magnet magnetized in a predetermined direction and a coil wound around the permanent magnet for crossing the direction of magnetization. The permanent magnet and coil are fixedly disposed in a yoke which is elastically supported in a case through a spring plate. The case partly consists of a magnetic plate which is placed for opposing the permanent magnet to form a magnetic flux circuit, whereby the vibrator can generate a vibration corresponding to an audio signal applied to the coil.
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Application Number:
JP18890184A
Publication Date:
August 28, 1991
Filing Date:
September 11, 1984
Export Citation:
International Classes:
H04R1/00; H04R9/00; H04R9/02; H04R11/02; H04R13/00; H04R5/02
Next Patent: JPH0356521