OSCILLATORY WAVE MOTOR AND SOUND GENERATION DEVICE USING OSCILLATORY WAVE MOTOR AS DRIVE SOURCE
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United States of America Patent
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Issued Date -
Sep 5, 2013
app pub date -
Nov 8, 2011
filing date -
Nov 10, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention addresses the problem of increasing the lifetimes of an oscillatory wave motor and a sound generation device using the oscillatory wave motor as a drive source, and proposed the structure and mechanism for integrally increasing the lifetimes of the oscillatory wave motor and the sound generation device using the oscillatory wave motor as the drive source. To maintain the drive performance of a drive unit, the drive unit is provided with a core sheathing structure, with the result that the drive unit is prevented from breaking and being damaged, and even if the entire drive unit is worn down, an intrinsic drive unit member serving as a core portion keeps the same drive area, so an initial drive feature is maintained. The descending order of a wear resistance of the members is the drive unit core material, a moving unit, and a drive unit sheathing material. In the oscillatory wave motor including a second drive mechanism, when performing an original operation of the oscillatory wave motor, a driven area on the moving unit is relatively drifted at the same time.
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