Vibrator system and vibrotherapeutic device using the same
First Claim
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1. A vibrator system, comprising:
- an ultrasonic motor comprising a stator, an electrode divided into at least two sections, and a rotator having an output shaft, said rotator being placed in parallel to said electrode;
a driver circuit which supplies forwardly rotary and reversely-rotatory signals to each section of said electrode; and
a switching control circuit which alternately switches the signals so that each section of said electrode alternately receives the forwardly-rotatory and reversely-rotatory signals,whereby a vibration is generated at the output shaft of said ultrasonic motor.
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Abstract
Disclosed is a novel vibrator system which comprises an ultrasonic motor; a driver circuit which supplies a forwardly-rotatory and reversely-rotatory signals to the ultrasonic motor; and a switching control circuit wich alternately switch the signals. The vibrator system attains a high energy efficiency even when miniaturized, as well as normally working without causing a large operation noise when loaded. The vibrotherapeutic device wherein the vibrator system is assembled can be advantageously used to massage human body.
35 Citations
16 Claims
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1. A vibrator system, comprising:
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an ultrasonic motor comprising a stator, an electrode divided into at least two sections, and a rotator having an output shaft, said rotator being placed in parallel to said electrode; a driver circuit which supplies forwardly rotary and reversely-rotatory signals to each section of said electrode; and a switching control circuit which alternately switches the signals so that each section of said electrode alternately receives the forwardly-rotatory and reversely-rotatory signals, whereby a vibration is generated at the output shaft of said ultrasonic motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification