Contact body easy to verify resin impregnation, manufacturing method thereof, and vibration actuator including contact body
Number of patents in Portfolio can not be more than 2000
United States of America
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May 3, 2022
Grant Date -
Apr 30, 2020
app pub date -
Oct 18, 2019
filing date -
Oct 18, 2019
priority date (Note) -
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Abstract
A contact body that makes it possible to easily verify whether or not the resin has been properly impregnated in the pores. A metallic sintered body having a plurality of pores, as a main body, is in contact with a vibration element in a vibration actuator. The contact body includes a sliding portion that has a sliding surface in contact with the vibration element, and a non-sliding portion adjacent to the sliding portion and not in contact with the vibration element. The non-sliding portion is provided with a resin lump containing hard particles and resin, and the resin lump is formed to be lower in height in a vertical direction than the sliding surface. In the sliding portion, part of hard particles and resin is exposed on the sliding surface.
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