Bearing member
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United States of America Patent
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May 27, 2014
Grant Date -
Mar 27, 2014
app pub date -
Sep 27, 2012
filing date -
Sep 30, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A bearing member is to be used for an action mechanism in a keyboard instrument, the action mechanism provided with an action member that pivots in accordance with a key-depressing operation, and the bearing member includes: an inner layer having a through hole through which a shaft provided in the action member is inserted; and an outer layer formed in an outer side of the inner layer. The inner layer is formed of a first material having a higher stability against humidity than a stability against humidity of the outer layer. The outer layer is formed of a second material having a resilience greater than a resilience of the inner layer.
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