VIBRATION ACTUATOR AND ELECTRONIC DEVICE
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United States of America Patent
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Issued Date -
Sep 12, 2024
app pub date -
May 20, 2024
filing date -
Jun 7, 2019
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Abstract
A vibration actuator comprising: a fixing body having a wound coil; a movable body housed in the fixing body, having a magnet and a yoke, and supported such that it vibrates inside the coil; and a pair of end portion members disposed at end portions of the fixing body and configured not to contact the movable body in a normal vibration range of the movable body but to contact the movable body at a time of impact to regulate a movement range of the movable body; wherein, each of the pair of end portion members includes an interference region that abuts against the movable body at the time of impact and restricts the movement range of the movable body, and a vent hole region that is located on an outer peripheral side of the interference region and includes a plurality of vent holes arranged in a circumferential direction.
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