VIBRATION ACTUATOR AND DRIVING DEVICE
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
Feb 5, 2024
filing date -
Feb 15, 2023
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Abstract
A vibration actuator includes a vibrating body, a contact body, and an abutment body. The vibrating body includes an electro-mechanical energy conversion element and an elastic body and have two vibration modes having a common node area that is of both the two vibration modes and is shared between the two vibration modes. The contact body comes into contact with the elastic body. The abutment body includes an abutment member that abuts on the common node area on a side opposite to a side on which the abutment body faces the contact body. The vibration actuator is configured such that an attraction force between the vibrating body and the abutment body is generated by a magnetic force.
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