Piezoelectric Driving Device, Electronic Component Conveyance Apparatus, Robot, Projector, And Printer
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United States of America Patent
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Issued Date -
Nov 8, 2018
app pub date -
May 1, 2018
filing date -
May 1, 2018
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A first member, a second member, a bearing that rotatably supports the second member about a rotation axis relative to the first member, a driven member placed on the first member, and a plurality of piezoelectric actuators that transmit driving forces for rotating the second member about the rotation axis relative to the first member to the driven member are provided, and the piezoelectric actuators are supported by the second member while being pressed against the first member or the member fixed thereto, and, as seen from a direction along the rotation axis, a center of pressing forces from the plurality of piezoelectric actuators to the driven member is located inside of an outer circumferential part of the bearing.
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